/********************************************************************** parse.y - $Author$ created at: Fri May 28 18:02:42 JST 1993 Copyright (C) 1993-2007 Yukihiro Matsumoto **********************************************************************/ %require "3.0" %{ #if !YYPURE # error needs pure parser #endif #define YYDEBUG 1 #define YYERROR_VERBOSE 1 #define YYSTACK_USE_ALLOCA 0 #define YYLTYPE rb_code_location_t #define YYLTYPE_IS_DECLARED 1 /* For Ripper */ #ifdef RUBY_EXTCONF_H # include RUBY_EXTCONF_H #endif #include "ruby/internal/config.h" #include #ifdef UNIVERSAL_PARSER #include "internal/ruby_parser.h" #include "parser_node.h" #include "universal_parser.c" #ifdef RIPPER #undef T_NODE #define T_NODE 0x1b #define STATIC_ID2SYM p->config->static_id2sym #define rb_str_coderange_scan_restartable p->config->str_coderange_scan_restartable #endif #else #include "internal.h" #include "internal/compile.h" #include "internal/compilers.h" #include "internal/complex.h" #include "internal/encoding.h" #include "internal/error.h" #include "internal/hash.h" #include "internal/imemo.h" #include "internal/io.h" #include "internal/numeric.h" #include "internal/parse.h" #include "internal/rational.h" #include "internal/re.h" #include "internal/ruby_parser.h" #include "internal/symbol.h" #include "internal/thread.h" #include "internal/variable.h" #include "node.h" #include "parser_node.h" #include "probes.h" #include "regenc.h" #include "ruby/encoding.h" #include "ruby/regex.h" #include "ruby/ruby.h" #include "ruby/st.h" #include "ruby/util.h" #include "ruby/ractor.h" #include "symbol.h" #ifndef RIPPER static bool hash_literal_key_p(VALUE k) { switch (OBJ_BUILTIN_TYPE(k)) { case T_NODE: switch (nd_type(RNODE(k))) { case NODE_INTEGER: case NODE_FLOAT: case NODE_RATIONAL: case NODE_IMAGINARY: case NODE_STR: case NODE_SYM: case NODE_LINE: case NODE_FILE: case NODE_ENCODING: return true; default: return false; } default: return true; } } static int rb_parser_string_hash_cmp(rb_parser_string_t *str1, rb_parser_string_t *str2); static int node_integer_cmp(rb_node_integer_t *n1, rb_node_integer_t *n2) { return (n1->minus != n2->minus || n1->base != n2->base || strcmp(n1->val, n2->val)); } static int node_float_cmp(rb_node_float_t *n1, rb_node_float_t *n2) { return (n1->minus != n2->minus || strcmp(n1->val, n2->val)); } static int node_rational_cmp(rb_node_rational_t *n1, rb_node_rational_t *n2) { return (n1->minus != n2->minus || n1->base != n2->base || n1->seen_point != n2->seen_point || strcmp(n1->val, n2->val)); } static int node_imaginary_cmp(rb_node_imaginary_t *n1, rb_node_imaginary_t *n2) { return (n1->minus != n2->minus || n1->base != n2->base || n1->seen_point != n2->seen_point || n1->type != n2->type || strcmp(n1->val, n2->val)); } static int node_integer_line_cmp(const NODE *node_i, const NODE *line) { VALUE num = rb_node_integer_literal_val(node_i); return !(FIXNUM_P(num) && line->nd_loc.beg_pos.lineno == FIX2INT(num)); } static int node_cdhash_cmp(VALUE val, VALUE lit) { if (val == lit) { return 0; } if ((OBJ_BUILTIN_TYPE(val) == T_NODE) && (OBJ_BUILTIN_TYPE(lit) == T_NODE)) { NODE *node_val = RNODE(val); NODE *node_lit = RNODE(lit); enum node_type type_val = nd_type(node_val); enum node_type type_lit = nd_type(node_lit); /* Special case for Integer and __LINE__ */ if (type_val == NODE_INTEGER && type_lit == NODE_LINE) { return node_integer_line_cmp(node_val, node_lit); } if (type_lit == NODE_INTEGER && type_val == NODE_LINE) { return node_integer_line_cmp(node_lit, node_val); } /* Special case for String and __FILE__ */ if (type_val == NODE_STR && type_lit == NODE_FILE) { return rb_parser_string_hash_cmp(RNODE_STR(node_val)->string, RNODE_FILE(node_lit)->path); } if (type_lit == NODE_STR && type_val == NODE_FILE) { return rb_parser_string_hash_cmp(RNODE_STR(node_lit)->string, RNODE_FILE(node_val)->path); } if (type_val != type_lit) { return -1; } switch (type_lit) { case NODE_INTEGER: return node_integer_cmp(RNODE_INTEGER(node_val), RNODE_INTEGER(node_lit)); case NODE_FLOAT: return node_float_cmp(RNODE_FLOAT(node_val), RNODE_FLOAT(node_lit)); case NODE_RATIONAL: return node_rational_cmp(RNODE_RATIONAL(node_val), RNODE_RATIONAL(node_lit)); case NODE_IMAGINARY: return node_imaginary_cmp(RNODE_IMAGINARY(node_val), RNODE_IMAGINARY(node_lit)); case NODE_STR: return rb_parser_string_hash_cmp(RNODE_STR(node_val)->string, RNODE_STR(node_lit)->string); case NODE_SYM: return rb_parser_string_hash_cmp(RNODE_SYM(node_val)->string, RNODE_SYM(node_lit)->string); case NODE_LINE: return node_val->nd_loc.beg_pos.lineno != node_lit->nd_loc.beg_pos.lineno; case NODE_FILE: return rb_parser_string_hash_cmp(RNODE_FILE(node_val)->path, RNODE_FILE(node_lit)->path); case NODE_ENCODING: return RNODE_ENCODING(node_val)->enc != RNODE_ENCODING(node_lit)->enc; default: rb_bug("unexpected node: %s, %s", ruby_node_name(type_val), ruby_node_name(type_lit)); } } else if ((OBJ_BUILTIN_TYPE(val) == T_NODE) || (OBJ_BUILTIN_TYPE(lit) == T_NODE)) { return -1; } else { return rb_iseq_cdhash_cmp(val, lit); } } static st_index_t rb_parser_str_hash(rb_parser_string_t *str); static st_index_t node_cdhash_hash(VALUE a) { switch (OBJ_BUILTIN_TYPE(a)) { case T_NODE:{ VALUE val; NODE *node = RNODE(a); enum node_type type = nd_type(node); switch (type) { case NODE_INTEGER: val = rb_node_integer_literal_val(node); if (!FIXNUM_P(val)) val = rb_big_hash(val); return FIX2LONG(val); case NODE_FLOAT: val = rb_node_float_literal_val(node); return rb_dbl_long_hash(RFLOAT_VALUE(val)); case NODE_RATIONAL: val = rb_node_rational_literal_val(node); return rb_rational_hash(val); case NODE_IMAGINARY: val = rb_node_imaginary_literal_val(node); return rb_complex_hash(val); case NODE_STR: return rb_parser_str_hash(RNODE_STR(node)->string); case NODE_SYM: return rb_parser_str_hash(RNODE_SYM(node)->string); case NODE_LINE: /* Same with NODE_INTEGER FIXNUM case */ return (st_index_t)node->nd_loc.beg_pos.lineno; case NODE_FILE: /* Same with NODE_STR */ return rb_parser_str_hash(RNODE_FILE(node)->path); case NODE_ENCODING: return rb_node_encoding_val(node); default: rb_bug("unexpected node: %s", ruby_node_name(type)); } } default: return rb_iseq_cdhash_hash(a); } } static int literal_cmp(VALUE val, VALUE lit) { if (val == lit) return 0; if (!hash_literal_key_p(val) || !hash_literal_key_p(lit)) return -1; return node_cdhash_cmp(val, lit); } static st_index_t literal_hash(VALUE a) { if (!hash_literal_key_p(a)) return (st_index_t)a; return node_cdhash_hash(a); } static VALUE syntax_error_new(void) { return rb_class_new_instance(0, 0, rb_eSyntaxError); } #endif static NODE *reg_named_capture_assign(struct parser_params* p, VALUE regexp, const YYLTYPE *loc); #define compile_callback rb_suppress_tracing VALUE rb_io_gets_internal(VALUE io); VALUE rb_node_case_when_optimizable_literal(const NODE *const node); #endif /* !UNIVERSAL_PARSER */ static inline int parse_isascii(int c) { return '\0' <= c && c <= '\x7f'; } #undef ISASCII #define ISASCII parse_isascii static inline int parse_isspace(int c) { return c == ' ' || ('\t' <= c && c <= '\r'); } #undef ISSPACE #define ISSPACE parse_isspace static inline int parse_iscntrl(int c) { return ('\0' <= c && c < ' ') || c == '\x7f'; } #undef ISCNTRL #define ISCNTRL(c) parse_iscntrl(c) static inline int parse_isupper(int c) { return 'A' <= c && c <= 'Z'; } static inline int parse_islower(int c) { return 'a' <= c && c <= 'z'; } static inline int parse_isalpha(int c) { return parse_isupper(c) || parse_islower(c); } #undef ISALPHA #define ISALPHA(c) parse_isalpha(c) static inline int parse_isdigit(int c) { return '0' <= c && c <= '9'; } #undef ISDIGIT #define ISDIGIT(c) parse_isdigit(c) static inline int parse_isalnum(int c) { return parse_isalpha(c) || parse_isdigit(c); } #undef ISALNUM #define ISALNUM(c) parse_isalnum(c) static inline int parse_isxdigit(int c) { return parse_isdigit(c) || ('A' <= c && c <= 'F') || ('a' <= c && c <= 'f'); } #undef ISXDIGIT #define ISXDIGIT(c) parse_isxdigit(c) #include "parser_st.h" #undef STRCASECMP #define STRCASECMP rb_parser_st_locale_insensitive_strcasecmp #undef STRNCASECMP #define STRNCASECMP rb_parser_st_locale_insensitive_strncasecmp #ifdef RIPPER VALUE rb_ripper_none; #include "ripper_init.h" #endif enum shareability { shareable_none, shareable_literal, shareable_copy, shareable_everything, }; enum rescue_context { before_rescue, after_rescue, after_else, after_ensure, }; struct lex_context { unsigned int in_defined: 1; unsigned int in_kwarg: 1; unsigned int in_argdef: 1; unsigned int in_def: 1; unsigned int in_class: 1; BITFIELD(enum shareability, shareable_constant_value, 2); BITFIELD(enum rescue_context, in_rescue, 2); }; typedef struct RNode_DEF_TEMP rb_node_def_temp_t; typedef struct RNode_EXITS rb_node_exits_t; #if defined(__GNUC__) && !defined(__clang__) // Suppress "parameter passing for argument of type 'struct // lex_context' changed" notes. `struct lex_context` is file scope, // and has no ABI compatibility issue. RBIMPL_WARNING_PUSH() RBIMPL_WARNING_IGNORED(-Wpsabi) RBIMPL_WARNING_POP() // Not sure why effective even after popped. #endif #include "parse.h" #define NO_LEX_CTXT (struct lex_context){0} #define AREF(ary, i) RARRAY_AREF(ary, i) #ifndef WARN_PAST_SCOPE # define WARN_PAST_SCOPE 0 #endif #define TAB_WIDTH 8 #define yydebug (p->debug) /* disable the global variable definition */ #define YYMALLOC(size) rb_parser_malloc(p, (size)) #define YYREALLOC(ptr, size) rb_parser_realloc(p, (ptr), (size)) #define YYCALLOC(nelem, size) rb_parser_calloc(p, (nelem), (size)) #define YYFREE(ptr) rb_parser_free(p, (ptr)) #define YYFPRINTF(out, ...) rb_parser_printf(p, __VA_ARGS__) #define YY_LOCATION_PRINT(File, loc, p) \ rb_parser_printf(p, "%d.%d-%d.%d", \ (loc).beg_pos.lineno, (loc).beg_pos.column,\ (loc).end_pos.lineno, (loc).end_pos.column) #define YYLLOC_DEFAULT(Current, Rhs, N) \ do \ if (N) \ { \ (Current).beg_pos = YYRHSLOC(Rhs, 1).beg_pos; \ (Current).end_pos = YYRHSLOC(Rhs, N).end_pos; \ } \ else \ { \ (Current).beg_pos = YYRHSLOC(Rhs, 0).end_pos; \ (Current).end_pos = YYRHSLOC(Rhs, 0).end_pos; \ } \ while (0) #define YY_(Msgid) \ (((Msgid)[0] == 'm') && (strcmp((Msgid), "memory exhausted") == 0) ? \ "nesting too deep" : (Msgid)) #define RUBY_SET_YYLLOC_FROM_STRTERM_HEREDOC(Current) \ rb_parser_set_location_from_strterm_heredoc(p, &p->lex.strterm->u.heredoc, &(Current)) #define RUBY_SET_YYLLOC_OF_DELAYED_TOKEN(Current) \ rb_parser_set_location_of_delayed_token(p, &(Current)) #define RUBY_SET_YYLLOC_OF_HEREDOC_END(Current) \ rb_parser_set_location_of_heredoc_end(p, &(Current)) #define RUBY_SET_YYLLOC_OF_DUMMY_END(Current) \ rb_parser_set_location_of_dummy_end(p, &(Current)) #define RUBY_SET_YYLLOC_OF_NONE(Current) \ rb_parser_set_location_of_none(p, &(Current)) #define RUBY_SET_YYLLOC(Current) \ rb_parser_set_location(p, &(Current)) #define RUBY_INIT_YYLLOC() \ { \ {p->ruby_sourceline, (int)(p->lex.ptok - p->lex.pbeg)}, \ {p->ruby_sourceline, (int)(p->lex.pcur - p->lex.pbeg)}, \ } #define IS_lex_state_for(x, ls) ((x) & (ls)) #define IS_lex_state_all_for(x, ls) (((x) & (ls)) == (ls)) #define IS_lex_state(ls) IS_lex_state_for(p->lex.state, (ls)) #define IS_lex_state_all(ls) IS_lex_state_all_for(p->lex.state, (ls)) # define SET_LEX_STATE(ls) \ parser_set_lex_state(p, ls, __LINE__) static inline enum lex_state_e parser_set_lex_state(struct parser_params *p, enum lex_state_e ls, int line); typedef VALUE stack_type; static const rb_code_location_t NULL_LOC = { {0, -1}, {0, -1} }; # define SHOW_BITSTACK(stack, name) (p->debug ? rb_parser_show_bitstack(p, stack, name, __LINE__) : (void)0) # define BITSTACK_PUSH(stack, n) (((p->stack) = ((p->stack)<<1)|((n)&1)), SHOW_BITSTACK(p->stack, #stack"(push)")) # define BITSTACK_POP(stack) (((p->stack) = (p->stack) >> 1), SHOW_BITSTACK(p->stack, #stack"(pop)")) # define BITSTACK_SET_P(stack) (SHOW_BITSTACK(p->stack, #stack), (p->stack)&1) # define BITSTACK_SET(stack, n) ((p->stack)=(n), SHOW_BITSTACK(p->stack, #stack"(set)")) /* A flag to identify keyword_do_cond, "do" keyword after condition expression. Examples: `while ... do`, `until ... do`, and `for ... in ... do` */ #define COND_PUSH(n) BITSTACK_PUSH(cond_stack, (n)) #define COND_POP() BITSTACK_POP(cond_stack) #define COND_P() BITSTACK_SET_P(cond_stack) #define COND_SET(n) BITSTACK_SET(cond_stack, (n)) /* A flag to identify keyword_do_block; "do" keyword after command_call. Example: `foo 1, 2 do`. */ #define CMDARG_PUSH(n) BITSTACK_PUSH(cmdarg_stack, (n)) #define CMDARG_POP() BITSTACK_POP(cmdarg_stack) #define CMDARG_P() BITSTACK_SET_P(cmdarg_stack) #define CMDARG_SET(n) BITSTACK_SET(cmdarg_stack, (n)) struct vtable { ID *tbl; int pos; int capa; struct vtable *prev; }; struct local_vars { struct vtable *args; struct vtable *vars; struct vtable *used; # if WARN_PAST_SCOPE struct vtable *past; # endif struct local_vars *prev; struct { NODE *outer, *inner, *current; } numparam; NODE *it; }; enum { ORDINAL_PARAM = -1, NO_PARAM = 0, NUMPARAM_MAX = 9, }; #define DVARS_INHERIT ((void*)1) #define DVARS_TOPSCOPE NULL #define DVARS_TERMINAL_P(tbl) ((tbl) == DVARS_INHERIT || (tbl) == DVARS_TOPSCOPE) typedef struct token_info { const char *token; rb_code_position_t beg; int indent; int nonspc; struct token_info *next; } token_info; typedef struct end_expect_token_locations { const rb_code_position_t *pos; struct end_expect_token_locations *prev; } end_expect_token_locations_t; typedef struct parser_string_buffer_elem { struct parser_string_buffer_elem *next; long len; /* Total length of allocated buf */ long used; /* Current usage of buf */ rb_parser_string_t *buf[FLEX_ARY_LEN]; } parser_string_buffer_elem_t; typedef struct parser_string_buffer { parser_string_buffer_elem_t *head; parser_string_buffer_elem_t *last; } parser_string_buffer_t; #define AFTER_HEREDOC_WITHOUT_TERMINTOR ((rb_parser_string_t *)1) /* Structure of Lexer Buffer: lex.pbeg lex.ptok lex.pcur lex.pend | | | | |------------+------------+------------| |<---------->| token */ struct parser_params { rb_imemo_tmpbuf_t *heap; YYSTYPE *lval; YYLTYPE *yylloc; struct { rb_strterm_t *strterm; VALUE (*gets)(struct parser_params*,VALUE); VALUE input; parser_string_buffer_t string_buffer; rb_parser_string_t *lastline; rb_parser_string_t *nextline; const char *pbeg; const char *pcur; const char *pend; const char *ptok; union { long ptr; VALUE (*call)(VALUE, int); } gets_; enum lex_state_e state; /* track the nest level of any parens "()[]{}" */ int paren_nest; /* keep p->lex.paren_nest at the beginning of lambda "->" to detect tLAMBEG and keyword_do_LAMBDA */ int lpar_beg; /* track the nest level of only braces "{}" */ int brace_nest; } lex; stack_type cond_stack; stack_type cmdarg_stack; int tokidx; int toksiz; int heredoc_end; int heredoc_indent; int heredoc_line_indent; char *tokenbuf; struct local_vars *lvtbl; st_table *pvtbl; st_table *pktbl; int line_count; int ruby_sourceline; /* current line no. */ const char *ruby_sourcefile; /* current source file */ VALUE ruby_sourcefile_string; rb_encoding *enc; token_info *token_info; VALUE case_labels; rb_node_exits_t *exits; VALUE debug_buffer; VALUE debug_output; struct { VALUE token; int beg_line; int beg_col; int end_line; int end_col; } delayed; ID cur_arg; rb_ast_t *ast; int node_id; int max_numparam; ID it_id; struct lex_context ctxt; NODE *eval_tree_begin; NODE *eval_tree; const struct rb_iseq_struct *parent_iseq; #ifdef UNIVERSAL_PARSER const rb_parser_config_t *config; #endif /* compile_option */ signed int frozen_string_literal:2; /* -1: not specified, 0: false, 1: true */ unsigned int command_start:1; unsigned int eofp: 1; unsigned int ruby__end__seen: 1; unsigned int debug: 1; unsigned int has_shebang: 1; unsigned int token_seen: 1; unsigned int token_info_enabled: 1; # if WARN_PAST_SCOPE unsigned int past_scope_enabled: 1; # endif unsigned int error_p: 1; unsigned int cr_seen: 1; #ifndef RIPPER /* Ruby core only */ unsigned int do_print: 1; unsigned int do_loop: 1; unsigned int do_chomp: 1; unsigned int do_split: 1; unsigned int error_tolerant: 1; unsigned int keep_tokens: 1; VALUE error_buffer; VALUE debug_lines; /* * Store specific keyword locations to generate dummy end token. * Refer to the tail of list element. */ end_expect_token_locations_t *end_expect_token_locations; /* id for terms */ int token_id; /* Array for term tokens */ VALUE tokens; #else /* Ripper only */ VALUE value; VALUE result; VALUE parsing_thread; VALUE s_value; /* Token VALUE */ VALUE s_lvalue; /* VALUE generated by rule action (reduce) */ VALUE s_value_stack; #endif }; #define NUMPARAM_ID_P(id) numparam_id_p(p, id) #define NUMPARAM_ID_TO_IDX(id) (unsigned int)(((id) >> ID_SCOPE_SHIFT) - (tNUMPARAM_1 - 1)) #define NUMPARAM_IDX_TO_ID(idx) TOKEN2LOCALID((tNUMPARAM_1 - 1 + (idx))) static int numparam_id_p(struct parser_params *p, ID id) { if (!is_local_id(id) || id < (tNUMPARAM_1 << ID_SCOPE_SHIFT)) return 0; unsigned int idx = NUMPARAM_ID_TO_IDX(id); return idx > 0 && idx <= NUMPARAM_MAX; } static void numparam_name(struct parser_params *p, ID id); #ifdef RIPPER static void after_shift(struct parser_params *p) { if (p->debug) { rb_parser_printf(p, "after-shift: %+"PRIsVALUE"\n", p->s_value); } rb_ary_push(p->s_value_stack, p->s_value); p->s_value = Qnil; } static void before_reduce(int len, struct parser_params *p) { // Initialize $$ with $1. if (len) p->s_lvalue = rb_ary_entry(p->s_value_stack, -len); } static void after_reduce(int len, struct parser_params *p) { for (int i = 0; i < len; i++) { if (p->debug) { rb_parser_printf(p, "after-reduce pop: %+"PRIsVALUE"\n", rb_ary_entry(p->s_value_stack, -1)); } rb_ary_pop(p->s_value_stack); } if (p->debug) { rb_parser_printf(p, "after-reduce push: %+"PRIsVALUE"\n", p->s_lvalue); } rb_ary_push(p->s_value_stack, p->s_lvalue); p->s_lvalue = Qnil; } static void after_shift_error_token(struct parser_params *p) { if (p->debug) { rb_parser_printf(p, "after-shift-error-token:\n"); } rb_ary_push(p->s_value_stack, Qnil); } static void after_pop_stack(int len, struct parser_params *p) { for (int i = 0; i < len; i++) { if (p->debug) { rb_parser_printf(p, "after-pop-stack pop: %+"PRIsVALUE"\n", rb_ary_entry(p->s_value_stack, -1)); } rb_ary_pop(p->s_value_stack); } } #else static void after_shift(struct parser_params *p) { } static void before_reduce(int len, struct parser_params *p) { } static void after_reduce(int len, struct parser_params *p) { } static void after_shift_error_token(struct parser_params *p) { } static void after_pop_stack(int len, struct parser_params *p) { } #endif #define intern_cstr(n,l,en) rb_intern3(n,l,en) #define STRING_NEW0() rb_parser_encoding_string_new(p,0,0,p->enc) #define STR_NEW(ptr,len) rb_enc_str_new((ptr),(len),p->enc) #define STR_NEW0() rb_enc_str_new(0,0,p->enc) #define STR_NEW2(ptr) rb_enc_str_new((ptr),strlen(ptr),p->enc) #define STR_NEW3(ptr,len,e,func) parser_str_new(p, (ptr),(len),(e),(func),p->enc) #define TOK_INTERN() intern_cstr(tok(p), toklen(p), p->enc) #define VALID_SYMNAME_P(s, l, enc, type) (rb_enc_symname_type(s, l, enc, (1U<<(type))) == (int)(type)) static inline bool end_with_newline_p(struct parser_params *p, VALUE str) { return RSTRING_LEN(str) > 0 && RSTRING_END(str)[-1] == '\n'; } static void pop_pvtbl(struct parser_params *p, st_table *tbl) { st_free_table(p->pvtbl); p->pvtbl = tbl; } static void pop_pktbl(struct parser_params *p, st_table *tbl) { if (p->pktbl) st_free_table(p->pktbl); p->pktbl = tbl; } #define STRING_BUF_DEFAULT_LEN 16 static void string_buffer_init(struct parser_params *p) { parser_string_buffer_t *buf = &p->lex.string_buffer; const size_t size = offsetof(parser_string_buffer_elem_t, buf) + sizeof(rb_parser_string_t *) * STRING_BUF_DEFAULT_LEN; buf->head = buf->last = xmalloc(size); buf->head->len = STRING_BUF_DEFAULT_LEN; buf->head->used = 0; buf->head->next = NULL; } static void string_buffer_append(struct parser_params *p, rb_parser_string_t *str) { parser_string_buffer_t *buf = &p->lex.string_buffer; if (buf->head->used >= buf->head->len) { parser_string_buffer_elem_t *elem; long n = buf->head->len * 2; const size_t size = offsetof(parser_string_buffer_elem_t, buf) + sizeof(rb_parser_string_t *) * n; elem = xmalloc(size); elem->len = n; elem->used = 0; elem->next = NULL; buf->last->next = elem; buf->last = elem; } buf->last->buf[buf->last->used++] = str; } static void rb_parser_string_free(rb_parser_t *p, rb_parser_string_t *str); static void string_buffer_free(struct parser_params *p) { parser_string_buffer_elem_t *elem = p->lex.string_buffer.head; while (elem) { parser_string_buffer_elem_t *next_elem = elem->next; for (long i = 0; i < elem->used; i++) { rb_parser_string_free(p, elem->buf[i]); } xfree(elem); elem = next_elem; } } #ifndef RIPPER static void flush_debug_buffer(struct parser_params *p, VALUE out, VALUE str); static void debug_end_expect_token_locations(struct parser_params *p, const char *name) { if(p->debug) { VALUE mesg = rb_sprintf("%s: [", name); int i = 0; for (end_expect_token_locations_t *loc = p->end_expect_token_locations; loc; loc = loc->prev) { if (i > 0) rb_str_cat_cstr(mesg, ", "); rb_str_catf(mesg, "[%d, %d]", loc->pos->lineno, loc->pos->column); i++; } rb_str_cat_cstr(mesg, "]\n"); flush_debug_buffer(p, p->debug_output, mesg); } } static void push_end_expect_token_locations(struct parser_params *p, const rb_code_position_t *pos) { if(!p->error_tolerant) return; end_expect_token_locations_t *locations; locations = ALLOC(end_expect_token_locations_t); locations->pos = pos; locations->prev = p->end_expect_token_locations; p->end_expect_token_locations = locations; debug_end_expect_token_locations(p, "push_end_expect_token_locations"); } static void pop_end_expect_token_locations(struct parser_params *p) { if(!p->end_expect_token_locations) return; end_expect_token_locations_t *locations = p->end_expect_token_locations->prev; ruby_sized_xfree(p->end_expect_token_locations, sizeof(end_expect_token_locations_t)); p->end_expect_token_locations = locations; debug_end_expect_token_locations(p, "pop_end_expect_token_locations"); } static end_expect_token_locations_t * peek_end_expect_token_locations(struct parser_params *p) { return p->end_expect_token_locations; } static ID parser_token2id(struct parser_params *p, enum yytokentype tok) { switch ((int) tok) { #define TOKEN2ID(tok) case tok: return rb_intern(#tok); #define TOKEN2ID2(tok, name) case tok: return rb_intern(name); TOKEN2ID2(' ', "words_sep") TOKEN2ID2('!', "!") TOKEN2ID2('%', "%"); TOKEN2ID2('&', "&"); TOKEN2ID2('*', "*"); TOKEN2ID2('+', "+"); TOKEN2ID2('-', "-"); TOKEN2ID2('/', "/"); TOKEN2ID2('<', "<"); TOKEN2ID2('=', "="); TOKEN2ID2('>', ">"); TOKEN2ID2('?', "?"); TOKEN2ID2('^', "^"); TOKEN2ID2('|', "|"); TOKEN2ID2('~', "~"); TOKEN2ID2(':', ":"); TOKEN2ID2(',', ","); TOKEN2ID2('.', "."); TOKEN2ID2(';', ";"); TOKEN2ID2('`', "`"); TOKEN2ID2('\n', "nl"); TOKEN2ID2('{', "{"); TOKEN2ID2('}', "}"); TOKEN2ID2('[', "["); TOKEN2ID2(']', "]"); TOKEN2ID2('(', "("); TOKEN2ID2(')', ")"); TOKEN2ID2('\\', "backslash"); TOKEN2ID(keyword_class); TOKEN2ID(keyword_module); TOKEN2ID(keyword_def); TOKEN2ID(keyword_undef); TOKEN2ID(keyword_begin); TOKEN2ID(keyword_rescue); TOKEN2ID(keyword_ensure); TOKEN2ID(keyword_end); TOKEN2ID(keyword_if); TOKEN2ID(keyword_unless); TOKEN2ID(keyword_then); TOKEN2ID(keyword_elsif); TOKEN2ID(keyword_else); TOKEN2ID(keyword_case); TOKEN2ID(keyword_when); TOKEN2ID(keyword_while); TOKEN2ID(keyword_until); TOKEN2ID(keyword_for); TOKEN2ID(keyword_break); TOKEN2ID(keyword_next); TOKEN2ID(keyword_redo); TOKEN2ID(keyword_retry); TOKEN2ID(keyword_in); TOKEN2ID(keyword_do); TOKEN2ID(keyword_do_cond); TOKEN2ID(keyword_do_block); TOKEN2ID(keyword_do_LAMBDA); TOKEN2ID(keyword_return); TOKEN2ID(keyword_yield); TOKEN2ID(keyword_super); TOKEN2ID(keyword_self); TOKEN2ID(keyword_nil); TOKEN2ID(keyword_true); TOKEN2ID(keyword_false); TOKEN2ID(keyword_and); TOKEN2ID(keyword_or); TOKEN2ID(keyword_not); TOKEN2ID(modifier_if); TOKEN2ID(modifier_unless); TOKEN2ID(modifier_while); TOKEN2ID(modifier_until); TOKEN2ID(modifier_rescue); TOKEN2ID(keyword_alias); TOKEN2ID(keyword_defined); TOKEN2ID(keyword_BEGIN); TOKEN2ID(keyword_END); TOKEN2ID(keyword__LINE__); TOKEN2ID(keyword__FILE__); TOKEN2ID(keyword__ENCODING__); TOKEN2ID(tIDENTIFIER); TOKEN2ID(tFID); TOKEN2ID(tGVAR); TOKEN2ID(tIVAR); TOKEN2ID(tCONSTANT); TOKEN2ID(tCVAR); TOKEN2ID(tLABEL); TOKEN2ID(tINTEGER); TOKEN2ID(tFLOAT); TOKEN2ID(tRATIONAL); TOKEN2ID(tIMAGINARY); TOKEN2ID(tCHAR); TOKEN2ID(tNTH_REF); TOKEN2ID(tBACK_REF); TOKEN2ID(tSTRING_CONTENT); TOKEN2ID(tREGEXP_END); TOKEN2ID(tDUMNY_END); TOKEN2ID(tSP); TOKEN2ID(tUPLUS); TOKEN2ID(tUMINUS); TOKEN2ID(tPOW); TOKEN2ID(tCMP); TOKEN2ID(tEQ); TOKEN2ID(tEQQ); TOKEN2ID(tNEQ); TOKEN2ID(tGEQ); TOKEN2ID(tLEQ); TOKEN2ID(tANDOP); TOKEN2ID(tOROP); TOKEN2ID(tMATCH); TOKEN2ID(tNMATCH); TOKEN2ID(tDOT2); TOKEN2ID(tDOT3); TOKEN2ID(tBDOT2); TOKEN2ID(tBDOT3); TOKEN2ID(tAREF); TOKEN2ID(tASET); TOKEN2ID(tLSHFT); TOKEN2ID(tRSHFT); TOKEN2ID(tANDDOT); TOKEN2ID(tCOLON2); TOKEN2ID(tCOLON3); TOKEN2ID(tOP_ASGN); TOKEN2ID(tASSOC); TOKEN2ID(tLPAREN); TOKEN2ID(tLPAREN_ARG); TOKEN2ID(tRPAREN); TOKEN2ID(tLBRACK); TOKEN2ID(tLBRACE); TOKEN2ID(tLBRACE_ARG); TOKEN2ID(tSTAR); TOKEN2ID(tDSTAR); TOKEN2ID(tAMPER); TOKEN2ID(tLAMBDA); TOKEN2ID(tSYMBEG); TOKEN2ID(tSTRING_BEG); TOKEN2ID(tXSTRING_BEG); TOKEN2ID(tREGEXP_BEG); TOKEN2ID(tWORDS_BEG); TOKEN2ID(tQWORDS_BEG); TOKEN2ID(tSYMBOLS_BEG); TOKEN2ID(tQSYMBOLS_BEG); TOKEN2ID(tSTRING_END); TOKEN2ID(tSTRING_DEND); TOKEN2ID(tSTRING_DBEG); TOKEN2ID(tSTRING_DVAR); TOKEN2ID(tLAMBEG); TOKEN2ID(tLABEL_END); TOKEN2ID(tIGNORED_NL); TOKEN2ID(tCOMMENT); TOKEN2ID(tEMBDOC_BEG); TOKEN2ID(tEMBDOC); TOKEN2ID(tEMBDOC_END); TOKEN2ID(tHEREDOC_BEG); TOKEN2ID(tHEREDOC_END); TOKEN2ID(k__END__); TOKEN2ID(tLOWEST); TOKEN2ID(tUMINUS_NUM); TOKEN2ID(tLAST_TOKEN); #undef TOKEN2ID #undef TOKEN2ID2 } rb_bug("parser_token2id: unknown token %d", tok); UNREACHABLE_RETURN(0); } #else static void push_end_expect_token_locations(struct parser_params *p, const rb_code_position_t *pos) { } static void pop_end_expect_token_locations(struct parser_params *p) { } #endif RBIMPL_ATTR_NONNULL((1, 2, 3)) static int parser_yyerror(struct parser_params*, const YYLTYPE *yylloc, const char*); RBIMPL_ATTR_NONNULL((1, 2)) static int parser_yyerror0(struct parser_params*, const char*); #define yyerror0(msg) parser_yyerror0(p, (msg)) #define yyerror1(loc, msg) parser_yyerror(p, (loc), (msg)) #define yyerror(yylloc, p, msg) parser_yyerror(p, yylloc, msg) #define token_flush(ptr) ((ptr)->lex.ptok = (ptr)->lex.pcur) #define lex_goto_eol(p) ((p)->lex.pcur = (p)->lex.pend) #define lex_eol_p(p) lex_eol_n_p(p, 0) #define lex_eol_n_p(p,n) lex_eol_ptr_n_p(p, (p)->lex.pcur, n) #define lex_eol_ptr_p(p,ptr) lex_eol_ptr_n_p(p,ptr,0) #define lex_eol_ptr_n_p(p,ptr,n) ((ptr)+(n) >= (p)->lex.pend) static void token_info_setup(token_info *ptinfo, const char *ptr, const rb_code_location_t *loc); static void token_info_push(struct parser_params*, const char *token, const rb_code_location_t *loc); static void token_info_pop(struct parser_params*, const char *token, const rb_code_location_t *loc); static void token_info_warn(struct parser_params *p, const char *token, token_info *ptinfo_beg, int same, const rb_code_location_t *loc); static void token_info_drop(struct parser_params *p, const char *token, rb_code_position_t beg_pos); #ifdef RIPPER #define compile_for_eval (0) #else #define compile_for_eval (p->parent_iseq != 0) #endif #define token_column ((int)(p->lex.ptok - p->lex.pbeg)) #define CALL_Q_P(q) ((q) == tANDDOT) #define NEW_QCALL(q,r,m,a,loc) (CALL_Q_P(q) ? NEW_QCALL0(r,m,a,loc) : NEW_CALL(r,m,a,loc)) #define lambda_beginning_p() (p->lex.lpar_beg == p->lex.paren_nest) static enum yytokentype yylex(YYSTYPE*, YYLTYPE*, struct parser_params*); static inline void rb_discard_node(struct parser_params *p, NODE *n) { rb_ast_delete_node(p->ast, n); } static rb_node_scope_t *rb_node_scope_new(struct parser_params *p, rb_node_args_t *nd_args, NODE *nd_body, const YYLTYPE *loc); static rb_node_scope_t *rb_node_scope_new2(struct parser_params *p, rb_ast_id_table_t *nd_tbl, rb_node_args_t *nd_args, NODE *nd_body, const YYLTYPE *loc); static rb_node_block_t *rb_node_block_new(struct parser_params *p, NODE *nd_head, const YYLTYPE *loc); static rb_node_if_t *rb_node_if_new(struct parser_params *p, NODE *nd_cond, NODE *nd_body, NODE *nd_else, const YYLTYPE *loc); static rb_node_unless_t *rb_node_unless_new(struct parser_params *p, NODE *nd_cond, NODE *nd_body, NODE *nd_else, const YYLTYPE *loc); static rb_node_case_t *rb_node_case_new(struct parser_params *p, NODE *nd_head, NODE *nd_body, const YYLTYPE *loc); static rb_node_case2_t *rb_node_case2_new(struct parser_params *p, NODE *nd_body, const YYLTYPE *loc); static rb_node_case3_t *rb_node_case3_new(struct parser_params *p, NODE *nd_head, NODE *nd_body, const YYLTYPE *loc); static rb_node_when_t *rb_node_when_new(struct parser_params *p, NODE *nd_head, NODE *nd_body, NODE *nd_next, const YYLTYPE *loc); static rb_node_in_t *rb_node_in_new(struct parser_params *p, NODE *nd_head, NODE *nd_body, NODE *nd_next, const YYLTYPE *loc); static rb_node_while_t *rb_node_while_new(struct parser_params *p, NODE *nd_cond, NODE *nd_body, long nd_state, const YYLTYPE *loc); static rb_node_until_t *rb_node_until_new(struct parser_params *p, NODE *nd_cond, NODE *nd_body, long nd_state, const YYLTYPE *loc); static rb_node_iter_t *rb_node_iter_new(struct parser_params *p, rb_node_args_t *nd_args, NODE *nd_body, const YYLTYPE *loc); static rb_node_for_t *rb_node_for_new(struct parser_params *p, NODE *nd_iter, NODE *nd_body, const YYLTYPE *loc); static rb_node_for_masgn_t *rb_node_for_masgn_new(struct parser_params *p, NODE *nd_var, const YYLTYPE *loc); static rb_node_retry_t *rb_node_retry_new(struct parser_params *p, const YYLTYPE *loc); static rb_node_begin_t *rb_node_begin_new(struct parser_params *p, NODE *nd_body, const YYLTYPE *loc); static rb_node_rescue_t *rb_node_rescue_new(struct parser_params *p, NODE *nd_head, NODE *nd_resq, NODE *nd_else, const YYLTYPE *loc); static rb_node_resbody_t *rb_node_resbody_new(struct parser_params *p, NODE *nd_args, NODE *nd_body, NODE *nd_next, const YYLTYPE *loc); static rb_node_ensure_t *rb_node_ensure_new(struct parser_params *p, NODE *nd_head, NODE *nd_ensr, const YYLTYPE *loc); static rb_node_and_t *rb_node_and_new(struct parser_params *p, NODE *nd_1st, NODE *nd_2nd, const YYLTYPE *loc); static rb_node_or_t *rb_node_or_new(struct parser_params *p, NODE *nd_1st, NODE *nd_2nd, const YYLTYPE *loc); static rb_node_masgn_t *rb_node_masgn_new(struct parser_params *p, NODE *nd_head, NODE *nd_args, const YYLTYPE *loc); static rb_node_lasgn_t *rb_node_lasgn_new(struct parser_params *p, ID nd_vid, NODE *nd_value, const YYLTYPE *loc); static rb_node_dasgn_t *rb_node_dasgn_new(struct parser_params *p, ID nd_vid, NODE *nd_value, const YYLTYPE *loc); static rb_node_gasgn_t *rb_node_gasgn_new(struct parser_params *p, ID nd_vid, NODE *nd_value, const YYLTYPE *loc); static rb_node_iasgn_t *rb_node_iasgn_new(struct parser_params *p, ID nd_vid, NODE *nd_value, const YYLTYPE *loc); static rb_node_cdecl_t *rb_node_cdecl_new(struct parser_params *p, ID nd_vid, NODE *nd_value, NODE *nd_else, const YYLTYPE *loc); static rb_node_cvasgn_t *rb_node_cvasgn_new(struct parser_params *p, ID nd_vid, NODE *nd_value, const YYLTYPE *loc); static rb_node_op_asgn1_t *rb_node_op_asgn1_new(struct parser_params *p, NODE *nd_recv, ID nd_mid, NODE *index, NODE *rvalue, const YYLTYPE *loc); static rb_node_op_asgn2_t *rb_node_op_asgn2_new(struct parser_params *p, NODE *nd_recv, NODE *nd_value, ID nd_vid, ID nd_mid, bool nd_aid, const YYLTYPE *loc); static rb_node_op_asgn_or_t *rb_node_op_asgn_or_new(struct parser_params *p, NODE *nd_head, NODE *nd_value, const YYLTYPE *loc); static rb_node_op_asgn_and_t *rb_node_op_asgn_and_new(struct parser_params *p, NODE *nd_head, NODE *nd_value, const YYLTYPE *loc); static rb_node_op_cdecl_t *rb_node_op_cdecl_new(struct parser_params *p, NODE *nd_head, NODE *nd_value, ID nd_aid, const YYLTYPE *loc); static rb_node_call_t *rb_node_call_new(struct parser_params *p, NODE *nd_recv, ID nd_mid, NODE *nd_args, const YYLTYPE *loc); static rb_node_opcall_t *rb_node_opcall_new(struct parser_params *p, NODE *nd_recv, ID nd_mid, NODE *nd_args, const YYLTYPE *loc); static rb_node_fcall_t *rb_node_fcall_new(struct parser_params *p, ID nd_mid, NODE *nd_args, const YYLTYPE *loc); static rb_node_vcall_t *rb_node_vcall_new(struct parser_params *p, ID nd_mid, const YYLTYPE *loc); static rb_node_qcall_t *rb_node_qcall_new(struct parser_params *p, NODE *nd_recv, ID nd_mid, NODE *nd_args, const YYLTYPE *loc); static rb_node_super_t *rb_node_super_new(struct parser_params *p, NODE *nd_args, const YYLTYPE *loc); static rb_node_zsuper_t * rb_node_zsuper_new(struct parser_params *p, const YYLTYPE *loc); static rb_node_list_t *rb_node_list_new(struct parser_params *p, NODE *nd_head, const YYLTYPE *loc); static rb_node_list_t *rb_node_list_new2(struct parser_params *p, NODE *nd_head, long nd_alen, NODE *nd_next, const YYLTYPE *loc); static rb_node_zlist_t *rb_node_zlist_new(struct parser_params *p, const YYLTYPE *loc); static rb_node_hash_t *rb_node_hash_new(struct parser_params *p, NODE *nd_head, const YYLTYPE *loc); static rb_node_return_t *rb_node_return_new(struct parser_params *p, NODE *nd_stts, const YYLTYPE *loc); static rb_node_yield_t *rb_node_yield_new(struct parser_params *p, NODE *nd_head, const YYLTYPE *loc); static rb_node_lvar_t *rb_node_lvar_new(struct parser_params *p, ID nd_vid, const YYLTYPE *loc); static rb_node_dvar_t *rb_node_dvar_new(struct parser_params *p, ID nd_vid, const YYLTYPE *loc); static rb_node_gvar_t *rb_node_gvar_new(struct parser_params *p, ID nd_vid, const YYLTYPE *loc); static rb_node_ivar_t *rb_node_ivar_new(struct parser_params *p, ID nd_vid, const YYLTYPE *loc); static rb_node_const_t *rb_node_const_new(struct parser_params *p, ID nd_vid, const YYLTYPE *loc); static rb_node_cvar_t *rb_node_cvar_new(struct parser_params *p, ID nd_vid, const YYLTYPE *loc); static rb_node_nth_ref_t *rb_node_nth_ref_new(struct parser_params *p, long nd_nth, const YYLTYPE *loc); static rb_node_back_ref_t *rb_node_back_ref_new(struct parser_params *p, long nd_nth, const YYLTYPE *loc); static rb_node_match2_t *rb_node_match2_new(struct parser_params *p, NODE *nd_recv, NODE *nd_value, const YYLTYPE *loc); static rb_node_match3_t *rb_node_match3_new(struct parser_params *p, NODE *nd_recv, NODE *nd_value, const YYLTYPE *loc); static rb_node_lit_t *rb_node_lit_new(struct parser_params *p, VALUE nd_lit, const YYLTYPE *loc); static rb_node_integer_t * rb_node_integer_new(struct parser_params *p, char* val, int base, const YYLTYPE *loc); static rb_node_float_t * rb_node_float_new(struct parser_params *p, char* val, const YYLTYPE *loc); static rb_node_rational_t * rb_node_rational_new(struct parser_params *p, char* val, int base, int seen_point, const YYLTYPE *loc); static rb_node_imaginary_t * rb_node_imaginary_new(struct parser_params *p, char* val, int base, int seen_point, enum rb_numeric_type, const YYLTYPE *loc); static rb_node_str_t *rb_node_str_new(struct parser_params *p, rb_parser_string_t *string, const YYLTYPE *loc); static rb_node_dstr_t *rb_node_dstr_new0(struct parser_params *p, rb_parser_string_t *string, long nd_alen, NODE *nd_next, const YYLTYPE *loc); static rb_node_dstr_t *rb_node_dstr_new(struct parser_params *p, rb_parser_string_t *string, const YYLTYPE *loc); static rb_node_xstr_t *rb_node_xstr_new(struct parser_params *p, rb_parser_string_t *string, const YYLTYPE *loc); static rb_node_dxstr_t *rb_node_dxstr_new(struct parser_params *p, rb_parser_string_t *string, long nd_alen, NODE *nd_next, const YYLTYPE *loc); static rb_node_evstr_t *rb_node_evstr_new(struct parser_params *p, NODE *nd_body, const YYLTYPE *loc); static rb_node_once_t *rb_node_once_new(struct parser_params *p, NODE *nd_body, const YYLTYPE *loc); static rb_node_args_t *rb_node_args_new(struct parser_params *p, const YYLTYPE *loc); static rb_node_args_aux_t *rb_node_args_aux_new(struct parser_params *p, ID nd_pid, long nd_plen, const YYLTYPE *loc); static rb_node_opt_arg_t *rb_node_opt_arg_new(struct parser_params *p, NODE *nd_body, const YYLTYPE *loc); static rb_node_kw_arg_t *rb_node_kw_arg_new(struct parser_params *p, NODE *nd_body, const YYLTYPE *loc); static rb_node_postarg_t *rb_node_postarg_new(struct parser_params *p, NODE *nd_1st, NODE *nd_2nd, const YYLTYPE *loc); static rb_node_argscat_t *rb_node_argscat_new(struct parser_params *p, NODE *nd_head, NODE *nd_body, const YYLTYPE *loc); static rb_node_argspush_t *rb_node_argspush_new(struct parser_params *p, NODE *nd_head, NODE *nd_body, const YYLTYPE *loc); static rb_node_splat_t *rb_node_splat_new(struct parser_params *p, NODE *nd_head, const YYLTYPE *loc); static rb_node_block_pass_t *rb_node_block_pass_new(struct parser_params *p, NODE *nd_body, const YYLTYPE *loc); static rb_node_defn_t *rb_node_defn_new(struct parser_params *p, ID nd_mid, NODE *nd_defn, const YYLTYPE *loc); static rb_node_defs_t *rb_node_defs_new(struct parser_params *p, NODE *nd_recv, ID nd_mid, NODE *nd_defn, const YYLTYPE *loc); static rb_node_alias_t *rb_node_alias_new(struct parser_params *p, NODE *nd_1st, NODE *nd_2nd, const YYLTYPE *loc); static rb_node_valias_t *rb_node_valias_new(struct parser_params *p, ID nd_alias, ID nd_orig, const YYLTYPE *loc); static rb_node_undef_t *rb_node_undef_new(struct parser_params *p, NODE *nd_undef, const YYLTYPE *loc); static rb_node_class_t *rb_node_class_new(struct parser_params *p, NODE *nd_cpath, NODE *nd_body, NODE *nd_super, const YYLTYPE *loc); static rb_node_module_t *rb_node_module_new(struct parser_params *p, NODE *nd_cpath, NODE *nd_body, const YYLTYPE *loc); static rb_node_sclass_t *rb_node_sclass_new(struct parser_params *p, NODE *nd_recv, NODE *nd_body, const YYLTYPE *loc); static rb_node_colon2_t *rb_node_colon2_new(struct parser_params *p, NODE *nd_head, ID nd_mid, const YYLTYPE *loc); static rb_node_colon3_t *rb_node_colon3_new(struct parser_params *p, ID nd_mid, const YYLTYPE *loc); static rb_node_dot2_t *rb_node_dot2_new(struct parser_params *p, NODE *nd_beg, NODE *nd_end, const YYLTYPE *loc); static rb_node_dot3_t *rb_node_dot3_new(struct parser_params *p, NODE *nd_beg, NODE *nd_end, const YYLTYPE *loc); static rb_node_self_t *rb_node_self_new(struct parser_params *p, const YYLTYPE *loc); static rb_node_nil_t *rb_node_nil_new(struct parser_params *p, const YYLTYPE *loc); static rb_node_true_t *rb_node_true_new(struct parser_params *p, const YYLTYPE *loc); static rb_node_false_t *rb_node_false_new(struct parser_params *p, const YYLTYPE *loc); static rb_node_errinfo_t *rb_node_errinfo_new(struct parser_params *p, const YYLTYPE *loc); static rb_node_defined_t *rb_node_defined_new(struct parser_params *p, NODE *nd_head, const YYLTYPE *loc); static rb_node_postexe_t *rb_node_postexe_new(struct parser_params *p, NODE *nd_body, const YYLTYPE *loc); static rb_node_sym_t *rb_node_sym_new(struct parser_params *p, VALUE str, const YYLTYPE *loc); static rb_node_dsym_t *rb_node_dsym_new(struct parser_params *p, rb_parser_string_t *string, long nd_alen, NODE *nd_next, const YYLTYPE *loc); static rb_node_attrasgn_t *rb_node_attrasgn_new(struct parser_params *p, NODE *nd_recv, ID nd_mid, NODE *nd_args, const YYLTYPE *loc); static rb_node_lambda_t *rb_node_lambda_new(struct parser_params *p, rb_node_args_t *nd_args, NODE *nd_body, const YYLTYPE *loc); static rb_node_aryptn_t *rb_node_aryptn_new(struct parser_params *p, NODE *pre_args, NODE *rest_arg, NODE *post_args, const YYLTYPE *loc); static rb_node_hshptn_t *rb_node_hshptn_new(struct parser_params *p, NODE *nd_pconst, NODE *nd_pkwargs, NODE *nd_pkwrestarg, const YYLTYPE *loc); static rb_node_fndptn_t *rb_node_fndptn_new(struct parser_params *p, NODE *pre_rest_arg, NODE *args, NODE *post_rest_arg, const YYLTYPE *loc); static rb_node_line_t *rb_node_line_new(struct parser_params *p, const YYLTYPE *loc); static rb_node_file_t *rb_node_file_new(struct parser_params *p, VALUE str, const YYLTYPE *loc); static rb_node_error_t *rb_node_error_new(struct parser_params *p, const YYLTYPE *loc); #define NEW_SCOPE(a,b,loc) (NODE *)rb_node_scope_new(p,a,b,loc) #define NEW_SCOPE2(t,a,b,loc) (NODE *)rb_node_scope_new2(p,t,a,b,loc) #define NEW_BLOCK(a,loc) (NODE *)rb_node_block_new(p,a,loc) #define NEW_IF(c,t,e,loc) (NODE *)rb_node_if_new(p,c,t,e,loc) #define NEW_UNLESS(c,t,e,loc) (NODE *)rb_node_unless_new(p,c,t,e,loc) #define NEW_CASE(h,b,loc) (NODE *)rb_node_case_new(p,h,b,loc) #define NEW_CASE2(b,loc) (NODE *)rb_node_case2_new(p,b,loc) #define NEW_CASE3(h,b,loc) (NODE *)rb_node_case3_new(p,h,b,loc) #define NEW_WHEN(c,t,e,loc) (NODE *)rb_node_when_new(p,c,t,e,loc) #define NEW_IN(c,t,e,loc) (NODE *)rb_node_in_new(p,c,t,e,loc) #define NEW_WHILE(c,b,n,loc) (NODE *)rb_node_while_new(p,c,b,n,loc) #define NEW_UNTIL(c,b,n,loc) (NODE *)rb_node_until_new(p,c,b,n,loc) #define NEW_ITER(a,b,loc) (NODE *)rb_node_iter_new(p,a,b,loc) #define NEW_FOR(i,b,loc) (NODE *)rb_node_for_new(p,i,b,loc) #define NEW_FOR_MASGN(v,loc) (NODE *)rb_node_for_masgn_new(p,v,loc) #define NEW_RETRY(loc) (NODE *)rb_node_retry_new(p,loc) #define NEW_BEGIN(b,loc) (NODE *)rb_node_begin_new(p,b,loc) #define NEW_RESCUE(b,res,e,loc) (NODE *)rb_node_rescue_new(p,b,res,e,loc) #define NEW_RESBODY(a,ex,n,loc) (NODE *)rb_node_resbody_new(p,a,ex,n,loc) #define NEW_ENSURE(b,en,loc) (NODE *)rb_node_ensure_new(p,b,en,loc) #define NEW_AND(f,s,loc) (NODE *)rb_node_and_new(p,f,s,loc) #define NEW_OR(f,s,loc) (NODE *)rb_node_or_new(p,f,s,loc) #define NEW_MASGN(l,r,loc) rb_node_masgn_new(p,l,r,loc) #define NEW_LASGN(v,val,loc) (NODE *)rb_node_lasgn_new(p,v,val,loc) #define NEW_DASGN(v,val,loc) (NODE *)rb_node_dasgn_new(p,v,val,loc) #define NEW_GASGN(v,val,loc) (NODE *)rb_node_gasgn_new(p,v,val,loc) #define NEW_IASGN(v,val,loc) (NODE *)rb_node_iasgn_new(p,v,val,loc) #define NEW_CDECL(v,val,path,loc) (NODE *)rb_node_cdecl_new(p,v,val,path,loc) #define NEW_CVASGN(v,val,loc) (NODE *)rb_node_cvasgn_new(p,v,val,loc) #define NEW_OP_ASGN1(r,id,idx,rval,loc) (NODE *)rb_node_op_asgn1_new(p,r,id,idx,rval,loc) #define NEW_OP_ASGN2(r,t,i,o,val,loc) (NODE *)rb_node_op_asgn2_new(p,r,val,i,o,t,loc) #define NEW_OP_ASGN_OR(i,val,loc) (NODE *)rb_node_op_asgn_or_new(p,i,val,loc) #define NEW_OP_ASGN_AND(i,val,loc) (NODE *)rb_node_op_asgn_and_new(p,i,val,loc) #define NEW_OP_CDECL(v,op,val,loc) (NODE *)rb_node_op_cdecl_new(p,v,val,op,loc) #define NEW_CALL(r,m,a,loc) (NODE *)rb_node_call_new(p,r,m,a,loc) #define NEW_OPCALL(r,m,a,loc) (NODE *)rb_node_opcall_new(p,r,m,a,loc) #define NEW_FCALL(m,a,loc) rb_node_fcall_new(p,m,a,loc) #define NEW_VCALL(m,loc) (NODE *)rb_node_vcall_new(p,m,loc) #define NEW_QCALL0(r,m,a,loc) (NODE *)rb_node_qcall_new(p,r,m,a,loc) #define NEW_SUPER(a,loc) (NODE *)rb_node_super_new(p,a,loc) #define NEW_ZSUPER(loc) (NODE *)rb_node_zsuper_new(p,loc) #define NEW_LIST(a,loc) (NODE *)rb_node_list_new(p,a,loc) #define NEW_LIST2(h,l,n,loc) (NODE *)rb_node_list_new2(p,h,l,n,loc) #define NEW_ZLIST(loc) (NODE *)rb_node_zlist_new(p,loc) #define NEW_HASH(a,loc) (NODE *)rb_node_hash_new(p,a,loc) #define NEW_RETURN(s,loc) (NODE *)rb_node_return_new(p,s,loc) #define NEW_YIELD(a,loc) (NODE *)rb_node_yield_new(p,a,loc) #define NEW_LVAR(v,loc) (NODE *)rb_node_lvar_new(p,v,loc) #define NEW_DVAR(v,loc) (NODE *)rb_node_dvar_new(p,v,loc) #define NEW_GVAR(v,loc) (NODE *)rb_node_gvar_new(p,v,loc) #define NEW_IVAR(v,loc) (NODE *)rb_node_ivar_new(p,v,loc) #define NEW_CONST(v,loc) (NODE *)rb_node_const_new(p,v,loc) #define NEW_CVAR(v,loc) (NODE *)rb_node_cvar_new(p,v,loc) #define NEW_NTH_REF(n,loc) (NODE *)rb_node_nth_ref_new(p,n,loc) #define NEW_BACK_REF(n,loc) (NODE *)rb_node_back_ref_new(p,n,loc) #define NEW_MATCH2(n1,n2,loc) (NODE *)rb_node_match2_new(p,n1,n2,loc) #define NEW_MATCH3(r,n2,loc) (NODE *)rb_node_match3_new(p,r,n2,loc) #define NEW_LIT(l,loc) (NODE *)rb_node_lit_new(p,l,loc) #define NEW_INTEGER(val, base,loc) (NODE *)rb_node_integer_new(p,val,base,loc) #define NEW_FLOAT(val,loc) (NODE *)rb_node_float_new(p,val,loc) #define NEW_RATIONAL(val,base,seen_point,loc) (NODE *)rb_node_rational_new(p,val,base,seen_point,loc) #define NEW_IMAGINARY(val,base,seen_point,numeric_type,loc) (NODE *)rb_node_imaginary_new(p,val,base,seen_point,numeric_type,loc) #define NEW_STR(s,loc) (NODE *)rb_node_str_new(p,s,loc) #define NEW_DSTR0(s,l,n,loc) (NODE *)rb_node_dstr_new0(p,s,l,n,loc) #define NEW_DSTR(s,loc) (NODE *)rb_node_dstr_new(p,s,loc) #define NEW_XSTR(s,loc) (NODE *)rb_node_xstr_new(p,s,loc) #define NEW_DXSTR(s,l,n,loc) (NODE *)rb_node_dxstr_new(p,s,l,n,loc) #define NEW_EVSTR(n,loc) (NODE *)rb_node_evstr_new(p,n,loc) #define NEW_ONCE(b,loc) (NODE *)rb_node_once_new(p,b,loc) #define NEW_ARGS(loc) rb_node_args_new(p,loc) #define NEW_ARGS_AUX(r,b,loc) rb_node_args_aux_new(p,r,b,loc) #define NEW_OPT_ARG(v,loc) rb_node_opt_arg_new(p,v,loc) #define NEW_KW_ARG(v,loc) rb_node_kw_arg_new(p,v,loc) #define NEW_POSTARG(i,v,loc) (NODE *)rb_node_postarg_new(p,i,v,loc) #define NEW_ARGSCAT(a,b,loc) (NODE *)rb_node_argscat_new(p,a,b,loc) #define NEW_ARGSPUSH(a,b,loc) (NODE *)rb_node_argspush_new(p,a,b,loc) #define NEW_SPLAT(a,loc) (NODE *)rb_node_splat_new(p,a,loc) #define NEW_BLOCK_PASS(b,loc) rb_node_block_pass_new(p,b,loc) #define NEW_DEFN(i,s,loc) (NODE *)rb_node_defn_new(p,i,s,loc) #define NEW_DEFS(r,i,s,loc) (NODE *)rb_node_defs_new(p,r,i,s,loc) #define NEW_ALIAS(n,o,loc) (NODE *)rb_node_alias_new(p,n,o,loc) #define NEW_VALIAS(n,o,loc) (NODE *)rb_node_valias_new(p,n,o,loc) #define NEW_UNDEF(i,loc) (NODE *)rb_node_undef_new(p,i,loc) #define NEW_CLASS(n,b,s,loc) (NODE *)rb_node_class_new(p,n,b,s,loc) #define NEW_MODULE(n,b,loc) (NODE *)rb_node_module_new(p,n,b,loc) #define NEW_SCLASS(r,b,loc) (NODE *)rb_node_sclass_new(p,r,b,loc) #define NEW_COLON2(c,i,loc) (NODE *)rb_node_colon2_new(p,c,i,loc) #define NEW_COLON3(i,loc) (NODE *)rb_node_colon3_new(p,i,loc) #define NEW_DOT2(b,e,loc) (NODE *)rb_node_dot2_new(p,b,e,loc) #define NEW_DOT3(b,e,loc) (NODE *)rb_node_dot3_new(p,b,e,loc) #define NEW_SELF(loc) (NODE *)rb_node_self_new(p,loc) #define NEW_NIL(loc) (NODE *)rb_node_nil_new(p,loc) #define NEW_TRUE(loc) (NODE *)rb_node_true_new(p,loc) #define NEW_FALSE(loc) (NODE *)rb_node_false_new(p,loc) #define NEW_ERRINFO(loc) (NODE *)rb_node_errinfo_new(p,loc) #define NEW_DEFINED(e,loc) (NODE *)rb_node_defined_new(p,e,loc) #define NEW_POSTEXE(b,loc) (NODE *)rb_node_postexe_new(p,b,loc) #define NEW_SYM(str,loc) (NODE *)rb_node_sym_new(p,str,loc) #define NEW_DSYM(s,l,n,loc) (NODE *)rb_node_dsym_new(p,s,l,n,loc) #define NEW_ATTRASGN(r,m,a,loc) (NODE *)rb_node_attrasgn_new(p,r,m,a,loc) #define NEW_LAMBDA(a,b,loc) (NODE *)rb_node_lambda_new(p,a,b,loc) #define NEW_ARYPTN(pre,r,post,loc) (NODE *)rb_node_aryptn_new(p,pre,r,post,loc) #define NEW_HSHPTN(c,kw,kwrest,loc) (NODE *)rb_node_hshptn_new(p,c,kw,kwrest,loc) #define NEW_FNDPTN(pre,a,post,loc) (NODE *)rb_node_fndptn_new(p,pre,a,post,loc) #define NEW_LINE(loc) (NODE *)rb_node_line_new(p,loc) #define NEW_FILE(str,loc) (NODE *)rb_node_file_new(p,str,loc) #define NEW_ENCODING(loc) (NODE *)rb_node_encoding_new(p,loc) #define NEW_ERROR(loc) (NODE *)rb_node_error_new(p,loc) enum internal_node_type { NODE_INTERNAL_ONLY = NODE_LAST, NODE_DEF_TEMP, NODE_EXITS, NODE_INTERNAL_LAST }; static const char * parser_node_name(int node) { switch (node) { case NODE_DEF_TEMP: return "NODE_DEF_TEMP"; case NODE_EXITS: return "NODE_EXITS"; default: return ruby_node_name(node); } } /* This node is parse.y internal */ struct RNode_DEF_TEMP { NODE node; /* for NODE_DEFN/NODE_DEFS */ struct RNode *nd_def; ID nd_mid; struct { ID cur_arg; int max_numparam; NODE *numparam_save; struct lex_context ctxt; } save; }; #define RNODE_DEF_TEMP(node) ((struct RNode_DEF_TEMP *)(node)) static rb_node_break_t *rb_node_break_new(struct parser_params *p, NODE *nd_stts, const YYLTYPE *loc); static rb_node_next_t *rb_node_next_new(struct parser_params *p, NODE *nd_stts, const YYLTYPE *loc); static rb_node_redo_t *rb_node_redo_new(struct parser_params *p, const YYLTYPE *loc); static rb_node_def_temp_t *rb_node_def_temp_new(struct parser_params *p, const YYLTYPE *loc); static rb_node_def_temp_t *def_head_save(struct parser_params *p, rb_node_def_temp_t *n); #define NEW_BREAK(s,loc) (NODE *)rb_node_break_new(p,s,loc) #define NEW_NEXT(s,loc) (NODE *)rb_node_next_new(p,s,loc) #define NEW_REDO(loc) (NODE *)rb_node_redo_new(p,loc) #define NEW_DEF_TEMP(loc) rb_node_def_temp_new(p,loc) /* Make a new internal node, which should not be appeared in the * result AST and does not have node_id and location. */ static NODE* node_new_internal(struct parser_params *p, enum node_type type, size_t size, size_t alignment); #define NODE_NEW_INTERNAL(ndtype, type) (type *)node_new_internal(p, (enum node_type)(ndtype), sizeof(type), RUBY_ALIGNOF(type)) static NODE *nd_set_loc(NODE *nd, const YYLTYPE *loc); static int parser_get_node_id(struct parser_params *p) { int node_id = p->node_id; p->node_id++; return node_id; } static void anddot_multiple_assignment_check(struct parser_params* p, const YYLTYPE *loc, ID id) { if (id == tANDDOT) { yyerror1(loc, "&. inside multiple assignment destination"); } } static inline void set_line_body(NODE *body, int line) { if (!body) return; switch (nd_type(body)) { case NODE_RESCUE: case NODE_ENSURE: nd_set_line(body, line); } } static void set_embraced_location(NODE *node, const rb_code_location_t *beg, const rb_code_location_t *end) { RNODE_ITER(node)->nd_body->nd_loc = code_loc_gen(beg, end); nd_set_line(node, beg->end_pos.lineno); } static NODE * last_expr_node(NODE *expr) { while (expr) { if (nd_type_p(expr, NODE_BLOCK)) { expr = RNODE_BLOCK(RNODE_BLOCK(expr)->nd_end)->nd_head; } else if (nd_type_p(expr, NODE_BEGIN)) { expr = RNODE_BEGIN(expr)->nd_body; } else { break; } } return expr; } #ifndef RIPPER #define yyparse ruby_yyparse #endif static NODE* cond(struct parser_params *p, NODE *node, const YYLTYPE *loc); static NODE* method_cond(struct parser_params *p, NODE *node, const YYLTYPE *loc); #define new_nil(loc) NEW_NIL(loc) static NODE *new_nil_at(struct parser_params *p, const rb_code_position_t *pos); static NODE *new_if(struct parser_params*,NODE*,NODE*,NODE*,const YYLTYPE*); static NODE *new_unless(struct parser_params*,NODE*,NODE*,NODE*,const YYLTYPE*); static NODE *logop(struct parser_params*,ID,NODE*,NODE*,const YYLTYPE*,const YYLTYPE*); static NODE *newline_node(NODE*); static void fixpos(NODE*,NODE*); static int value_expr_gen(struct parser_params*,NODE*); static void void_expr(struct parser_params*,NODE*); static NODE *remove_begin(NODE*); #define value_expr(node) value_expr_gen(p, (node)) static NODE *void_stmts(struct parser_params*,NODE*); static void reduce_nodes(struct parser_params*,NODE**); static void block_dup_check(struct parser_params*,NODE*,NODE*); static NODE *block_append(struct parser_params*,NODE*,NODE*); static NODE *list_append(struct parser_params*,NODE*,NODE*); static NODE *list_concat(NODE*,NODE*); static NODE *arg_append(struct parser_params*,NODE*,NODE*,const YYLTYPE*); static NODE *last_arg_append(struct parser_params *p, NODE *args, NODE *last_arg, const YYLTYPE *loc); static NODE *rest_arg_append(struct parser_params *p, NODE *args, NODE *rest_arg, const YYLTYPE *loc); static NODE *literal_concat(struct parser_params*,NODE*,NODE*,const YYLTYPE*); static NODE *new_evstr(struct parser_params*,NODE*,const YYLTYPE*); static NODE *new_dstr(struct parser_params*,NODE*,const YYLTYPE*); static NODE *str2dstr(struct parser_params*,NODE*); static NODE *evstr2dstr(struct parser_params*,NODE*); static NODE *splat_array(NODE*); static void mark_lvar_used(struct parser_params *p, NODE *rhs); static NODE *call_bin_op(struct parser_params*,NODE*,ID,NODE*,const YYLTYPE*,const YYLTYPE*); static NODE *call_uni_op(struct parser_params*,NODE*,ID,const YYLTYPE*,const YYLTYPE*); static NODE *new_qcall(struct parser_params* p, ID atype, NODE *recv, ID mid, NODE *args, const YYLTYPE *op_loc, const YYLTYPE *loc); static NODE *new_command_qcall(struct parser_params* p, ID atype, NODE *recv, ID mid, NODE *args, NODE *block, const YYLTYPE *op_loc, const YYLTYPE *loc); static NODE *method_add_block(struct parser_params*p, NODE *m, NODE *b, const YYLTYPE *loc) {RNODE_ITER(b)->nd_iter = m; b->nd_loc = *loc; return b;} static bool args_info_empty_p(struct rb_args_info *args); static rb_node_args_t *new_args(struct parser_params*,rb_node_args_aux_t*,rb_node_opt_arg_t*,ID,rb_node_args_aux_t*,rb_node_args_t*,const YYLTYPE*); static rb_node_args_t *new_args_tail(struct parser_params*,rb_node_kw_arg_t*,ID,ID,const YYLTYPE*); static NODE *new_array_pattern(struct parser_params *p, NODE *constant, NODE *pre_arg, NODE *aryptn, const YYLTYPE *loc); static NODE *new_array_pattern_tail(struct parser_params *p, NODE *pre_args, int has_rest, NODE *rest_arg, NODE *post_args, const YYLTYPE *loc); static NODE *new_find_pattern(struct parser_params *p, NODE *constant, NODE *fndptn, const YYLTYPE *loc); static NODE *new_find_pattern_tail(struct parser_params *p, NODE *pre_rest_arg, NODE *args, NODE *post_rest_arg, const YYLTYPE *loc); static NODE *new_hash_pattern(struct parser_params *p, NODE *constant, NODE *hshptn, const YYLTYPE *loc); static NODE *new_hash_pattern_tail(struct parser_params *p, NODE *kw_args, ID kw_rest_arg, const YYLTYPE *loc); static rb_node_kw_arg_t *new_kw_arg(struct parser_params *p, NODE *k, const YYLTYPE *loc); static rb_node_args_t *args_with_numbered(struct parser_params*,rb_node_args_t*,int,ID); static NODE* negate_lit(struct parser_params*, NODE*); static NODE *ret_args(struct parser_params*,NODE*); static NODE *arg_blk_pass(NODE*,rb_node_block_pass_t*); static NODE *new_yield(struct parser_params*,NODE*,const YYLTYPE*); static NODE *dsym_node(struct parser_params*,NODE*,const YYLTYPE*); static NODE *gettable(struct parser_params*,ID,const YYLTYPE*); static NODE *assignable(struct parser_params*,ID,NODE*,const YYLTYPE*); static NODE *aryset(struct parser_params*,NODE*,NODE*,const YYLTYPE*); static NODE *attrset(struct parser_params*,NODE*,ID,ID,const YYLTYPE*); static void rb_backref_error(struct parser_params*,NODE*); static NODE *node_assign(struct parser_params*,NODE*,NODE*,struct lex_context,const YYLTYPE*); static NODE *new_op_assign(struct parser_params *p, NODE *lhs, ID op, NODE *rhs, struct lex_context, const YYLTYPE *loc); static NODE *new_ary_op_assign(struct parser_params *p, NODE *ary, NODE *args, ID op, NODE *rhs, const YYLTYPE *args_loc, const YYLTYPE *loc); static NODE *new_attr_op_assign(struct parser_params *p, NODE *lhs, ID atype, ID attr, ID op, NODE *rhs, const YYLTYPE *loc); static NODE *new_const_op_assign(struct parser_params *p, NODE *lhs, ID op, NODE *rhs, struct lex_context, const YYLTYPE *loc); static NODE *new_bodystmt(struct parser_params *p, NODE *head, NODE *rescue, NODE *rescue_else, NODE *ensure, const YYLTYPE *loc); static NODE *const_decl(struct parser_params *p, NODE* path, const YYLTYPE *loc); static rb_node_opt_arg_t *opt_arg_append(rb_node_opt_arg_t*, rb_node_opt_arg_t*); static rb_node_kw_arg_t *kwd_append(rb_node_kw_arg_t*, rb_node_kw_arg_t*); static NODE *new_hash(struct parser_params *p, NODE *hash, const YYLTYPE *loc); static NODE *new_unique_key_hash(struct parser_params *p, NODE *hash, const YYLTYPE *loc); static NODE *new_defined(struct parser_params *p, NODE *expr, const YYLTYPE *loc); static NODE *new_regexp(struct parser_params *, NODE *, int, const YYLTYPE *); #define make_list(list, loc) ((list) ? (nd_set_loc(list, loc), list) : NEW_ZLIST(loc)) static NODE *new_xstring(struct parser_params *, NODE *, const YYLTYPE *loc); static NODE *symbol_append(struct parser_params *p, NODE *symbols, NODE *symbol); static NODE *match_op(struct parser_params*,NODE*,NODE*,const YYLTYPE*,const YYLTYPE*); static rb_ast_id_table_t *local_tbl(struct parser_params*); static VALUE reg_compile(struct parser_params*, VALUE, int); static void reg_fragment_setenc(struct parser_params*, VALUE, int); #define reg_fragment_check rb_parser_reg_fragment_check int reg_fragment_check(struct parser_params*, rb_parser_string_t*, int); static int literal_concat0(struct parser_params *p, rb_parser_string_t *head, rb_parser_string_t *tail); static NODE *heredoc_dedent(struct parser_params*,NODE*); static void check_literal_when(struct parser_params *p, NODE *args, const YYLTYPE *loc); #ifdef RIPPER static VALUE var_field(struct parser_params *p, VALUE a); #define get_value(idx) (rb_ary_entry(p->s_value_stack, idx)) #define set_value(val) (p->s_lvalue = val) static VALUE defs(struct parser_params *p, VALUE head, VALUE args, VALUE bodystmt); static VALUE backref_error(struct parser_params*, NODE *, VALUE); static VALUE ripper_assignable(struct parser_params *p, ID id, VALUE lhs); static VALUE ripper_const_decl(struct parser_params *p, VALUE path); static VALUE ripper_heredoc_dedent(struct parser_params *p, int indent, VALUE array); static VALUE assign_error(struct parser_params *p, const char *mesg, VALUE a); static int id_is_var(struct parser_params *p, ID id); #endif RUBY_SYMBOL_EXPORT_BEGIN VALUE rb_parser_reg_compile(struct parser_params* p, VALUE str, int options); int rb_reg_fragment_setenc(struct parser_params*, VALUE, int); enum lex_state_e rb_parser_trace_lex_state(struct parser_params *, enum lex_state_e, enum lex_state_e, int); VALUE rb_parser_lex_state_name(struct parser_params *p, enum lex_state_e state); void rb_parser_show_bitstack(struct parser_params *, stack_type, const char *, int); PRINTF_ARGS(void rb_parser_fatal(struct parser_params *p, const char *fmt, ...), 2, 3); YYLTYPE *rb_parser_set_location_from_strterm_heredoc(struct parser_params *p, rb_strterm_heredoc_t *here, YYLTYPE *yylloc); YYLTYPE *rb_parser_set_location_of_delayed_token(struct parser_params *p, YYLTYPE *yylloc); YYLTYPE *rb_parser_set_location_of_heredoc_end(struct parser_params *p, YYLTYPE *yylloc); YYLTYPE *rb_parser_set_location_of_dummy_end(struct parser_params *p, YYLTYPE *yylloc); YYLTYPE *rb_parser_set_location_of_none(struct parser_params *p, YYLTYPE *yylloc); YYLTYPE *rb_parser_set_location(struct parser_params *p, YYLTYPE *yylloc); void ruby_show_error_line(struct parser_params *p, VALUE errbuf, const YYLTYPE *yylloc, int lineno, rb_parser_string_t *str); RUBY_SYMBOL_EXPORT_END static void error_duplicate_pattern_variable(struct parser_params *p, ID id, const YYLTYPE *loc); static void error_duplicate_pattern_key(struct parser_params *p, ID id, const YYLTYPE *loc); static ID formal_argument(struct parser_params*, ID); static ID shadowing_lvar(struct parser_params*,ID); static void new_bv(struct parser_params*,ID); static void local_push(struct parser_params*,int); static void local_pop(struct parser_params*); static void local_var(struct parser_params*, ID); static void arg_var(struct parser_params*, ID); static int local_id(struct parser_params *p, ID id); static int local_id_ref(struct parser_params*, ID, ID **); #define internal_id rb_parser_internal_id ID internal_id(struct parser_params*); static NODE *new_args_forward_call(struct parser_params*, NODE*, const YYLTYPE*, const YYLTYPE*); static int check_forwarding_args(struct parser_params*); static void add_forwarding_args(struct parser_params *p); static void forwarding_arg_check(struct parser_params *p, ID arg, ID all, const char *var); static const struct vtable *dyna_push(struct parser_params *); static void dyna_pop(struct parser_params*, const struct vtable *); static int dyna_in_block(struct parser_params*); #define dyna_var(p, id) local_var(p, id) static int dvar_defined(struct parser_params*, ID); #define dvar_defined_ref rb_parser_dvar_defined_ref int dvar_defined_ref(struct parser_params*, ID, ID**); static int dvar_curr(struct parser_params*,ID); static int lvar_defined(struct parser_params*, ID); static NODE *numparam_push(struct parser_params *p); static void numparam_pop(struct parser_params *p, NODE *prev_inner); #define METHOD_NOT '!' #define idFWD_REST '*' #define idFWD_KWREST idPow /* Use simple "**", as tDSTAR is "**arg" */ #define idFWD_BLOCK '&' #define idFWD_ALL idDot3 #define arg_FWD_BLOCK idFWD_BLOCK #define RE_OPTION_ONCE (1<<16) #define RE_OPTION_ENCODING_SHIFT 8 #define RE_OPTION_ENCODING(e) (((e)&0xff)<>RE_OPTION_ENCODING_SHIFT)&0xff) #define RE_OPTION_ENCODING_NONE(o) ((o)&RE_OPTION_ARG_ENCODING_NONE) #define RE_OPTION_MASK 0xff #define RE_OPTION_ARG_ENCODING_NONE 32 #define yytnamerr(yyres, yystr) (YYSIZE_T)rb_yytnamerr(p, yyres, yystr) size_t rb_yytnamerr(struct parser_params *p, char *yyres, const char *yystr); #define TOKEN2ID(tok) ( \ tTOKEN_LOCAL_BEGIN<(tok)&&(tok)=128 || rb_ispunct(tok))))) /****** Ripper *******/ #ifdef RIPPER #include "eventids1.h" #include "eventids2.h" extern const struct ripper_parser_ids ripper_parser_ids; static VALUE ripper_dispatch0(struct parser_params*,ID); static VALUE ripper_dispatch1(struct parser_params*,ID,VALUE); static VALUE ripper_dispatch2(struct parser_params*,ID,VALUE,VALUE); static VALUE ripper_dispatch3(struct parser_params*,ID,VALUE,VALUE,VALUE); static VALUE ripper_dispatch4(struct parser_params*,ID,VALUE,VALUE,VALUE,VALUE); static VALUE ripper_dispatch5(struct parser_params*,ID,VALUE,VALUE,VALUE,VALUE,VALUE); static VALUE ripper_dispatch7(struct parser_params*,ID,VALUE,VALUE,VALUE,VALUE,VALUE,VALUE,VALUE); void ripper_error(struct parser_params *p); #define dispatch0(n) ripper_dispatch0(p, TOKEN_PASTE(ripper_id_, n)) #define dispatch1(n,a) ripper_dispatch1(p, TOKEN_PASTE(ripper_id_, n), (a)) #define dispatch2(n,a,b) ripper_dispatch2(p, TOKEN_PASTE(ripper_id_, n), (a), (b)) #define dispatch3(n,a,b,c) ripper_dispatch3(p, TOKEN_PASTE(ripper_id_, n), (a), (b), (c)) #define dispatch4(n,a,b,c,d) ripper_dispatch4(p, TOKEN_PASTE(ripper_id_, n), (a), (b), (c), (d)) #define dispatch5(n,a,b,c,d,e) ripper_dispatch5(p, TOKEN_PASTE(ripper_id_, n), (a), (b), (c), (d), (e)) #define dispatch7(n,a,b,c,d,e,f,g) ripper_dispatch7(p, TOKEN_PASTE(ripper_id_, n), (a), (b), (c), (d), (e), (f), (g)) #define yyparse ripper_yyparse static void ripper_formal_argument(struct parser_params *p, ID id, VALUE lhs); static VALUE ripper_new_args(struct parser_params *p, VALUE pre_args, VALUE opt_args, VALUE rest_arg, VALUE post_args, VALUE tail) { VALUE kw_args = rb_ary_entry(tail, 0); VALUE kw_rest_arg = rb_ary_entry(tail, 1); VALUE block = rb_ary_entry(tail, 2); return dispatch7(params, pre_args, opt_args, rest_arg, post_args, kw_args, kw_rest_arg, block); } static VALUE ripper_new_array_pattern(struct parser_params *p, VALUE constant, VALUE pre_arg, VALUE aryptn) { VALUE pre_args = rb_ary_entry(aryptn, 0); VALUE rest_arg = rb_ary_entry(aryptn, 1); VALUE post_args = rb_ary_entry(aryptn, 2); if (!NIL_P(pre_arg)) { if (!NIL_P(pre_args)) { rb_ary_unshift(pre_args, pre_arg); } else { pre_args = rb_ary_new_from_args(1, pre_arg); } } return dispatch4(aryptn, constant, pre_args, rest_arg, post_args); } static VALUE ripper_new_array_pattern_tail(struct parser_params *p, VALUE pre_args, VALUE rest_arg, VALUE post_args) { return rb_ary_new_from_args(3, pre_args, rest_arg, post_args); } static VALUE ripper_new_hash_pattern(struct parser_params *p, VALUE constant, VALUE hshptn) { VALUE kw_args = rb_ary_entry(hshptn, 0); VALUE kw_rest_arg = rb_ary_entry(hshptn, 1); return dispatch3(hshptn, constant, kw_args, kw_rest_arg); } static VALUE ripper_new_hash_pattern_tail(struct parser_params *p, VALUE kw_args, VALUE kw_rest_arg) { if (kw_rest_arg) { kw_rest_arg = dispatch1(var_field, kw_rest_arg); } else { kw_rest_arg = Qnil; } return rb_ary_new_from_args(2, kw_args, kw_rest_arg); } static VALUE ripper_new_find_pattern(struct parser_params *p, VALUE constant, VALUE fndptn) { VALUE pre_rest_arg = rb_ary_entry(fndptn, 0); VALUE args = rb_ary_entry(fndptn, 1); VALUE post_rest_arg = rb_ary_entry(fndptn, 2); return dispatch4(fndptn, constant, pre_rest_arg, args, post_rest_arg); } static VALUE ripper_new_find_pattern_tail(struct parser_params *p, VALUE pre_rest_arg, VALUE args, VALUE post_rest_arg) { return rb_ary_new_from_args(3, pre_rest_arg, args, post_rest_arg); } #define ID2VAL(id) STATIC_ID2SYM(id) #define TOKEN2VAL(t) ID2VAL(TOKEN2ID(t)) #endif /* RIPPER */ #define KWD2EID(t, v) keyword_##t static NODE * new_scope_body(struct parser_params *p, rb_node_args_t *args, NODE *body, const YYLTYPE *loc) { body = remove_begin(body); reduce_nodes(p, &body); NODE *n = NEW_SCOPE(args, body, loc); nd_set_line(n, loc->end_pos.lineno); set_line_body(body, loc->beg_pos.lineno); return n; } static NODE * rescued_expr(struct parser_params *p, NODE *arg, NODE *rescue, const YYLTYPE *arg_loc, const YYLTYPE *mod_loc, const YYLTYPE *res_loc) { YYLTYPE loc = code_loc_gen(mod_loc, res_loc); rescue = NEW_RESBODY(0, remove_begin(rescue), 0, &loc); loc.beg_pos = arg_loc->beg_pos; return NEW_RESCUE(arg, rescue, 0, &loc); } static NODE *add_block_exit(struct parser_params *p, NODE *node); static rb_node_exits_t *init_block_exit(struct parser_params *p); static rb_node_exits_t *allow_block_exit(struct parser_params *p); static void restore_block_exit(struct parser_params *p, rb_node_exits_t *exits); static void clear_block_exit(struct parser_params *p, bool error); static void next_rescue_context(struct lex_context *next, const struct lex_context *outer, enum rescue_context def) { next->in_rescue = outer->in_rescue == after_rescue ? after_rescue : def; } static void restore_defun(struct parser_params *p, rb_node_def_temp_t *temp) { /* See: def_name action */ struct lex_context ctxt = temp->save.ctxt; p->cur_arg = temp->save.cur_arg; p->ctxt.in_def = ctxt.in_def; p->ctxt.shareable_constant_value = ctxt.shareable_constant_value; p->ctxt.in_rescue = ctxt.in_rescue; p->max_numparam = temp->save.max_numparam; numparam_pop(p, temp->save.numparam_save); clear_block_exit(p, true); } static void endless_method_name(struct parser_params *p, ID mid, const YYLTYPE *loc) { if (is_attrset_id(mid)) { yyerror1(loc, "setter method cannot be defined in an endless method definition"); } token_info_drop(p, "def", loc->beg_pos); } #define debug_token_line(p, name, line) do { \ if (p->debug) { \ const char *const pcur = p->lex.pcur; \ const char *const ptok = p->lex.ptok; \ rb_parser_printf(p, name ":%d (%d: %"PRIdPTRDIFF"|%"PRIdPTRDIFF"|%"PRIdPTRDIFF")\n", \ line, p->ruby_sourceline, \ ptok - p->lex.pbeg, pcur - ptok, p->lex.pend - pcur); \ } \ } while (0) #define begin_definition(k, loc_beg, loc_end) \ do { \ if (!(p->ctxt.in_class = (k)[0] != 0)) { \ p->ctxt.in_def = 0; \ } \ else if (p->ctxt.in_def) { \ YYLTYPE loc = code_loc_gen(loc_beg, loc_end); \ yyerror1(&loc, k " definition in method body"); \ } \ local_push(p, 0); \ } while (0) #define Qnone 0 #define Qnull 0 #ifndef RIPPER # define ifndef_ripper(x) (x) #else # define ifndef_ripper(x) #endif # define rb_warn0(fmt) WARN_CALL(WARN_ARGS(fmt, 1)) # define rb_warn1(fmt,a) WARN_CALL(WARN_ARGS(fmt, 2), (a)) # define rb_warn2(fmt,a,b) WARN_CALL(WARN_ARGS(fmt, 3), (a), (b)) # define rb_warn3(fmt,a,b,c) WARN_CALL(WARN_ARGS(fmt, 4), (a), (b), (c)) # define rb_warn4(fmt,a,b,c,d) WARN_CALL(WARN_ARGS(fmt, 5), (a), (b), (c), (d)) # define rb_warning0(fmt) WARNING_CALL(WARNING_ARGS(fmt, 1)) # define rb_warning1(fmt,a) WARNING_CALL(WARNING_ARGS(fmt, 2), (a)) # define rb_warning2(fmt,a,b) WARNING_CALL(WARNING_ARGS(fmt, 3), (a), (b)) # define rb_warning3(fmt,a,b,c) WARNING_CALL(WARNING_ARGS(fmt, 4), (a), (b), (c)) # define rb_warning4(fmt,a,b,c,d) WARNING_CALL(WARNING_ARGS(fmt, 5), (a), (b), (c), (d)) # define rb_warn0L(l,fmt) WARN_CALL(WARN_ARGS_L(l, fmt, 1)) # define rb_warn1L(l,fmt,a) WARN_CALL(WARN_ARGS_L(l, fmt, 2), (a)) # define rb_warn2L(l,fmt,a,b) WARN_CALL(WARN_ARGS_L(l, fmt, 3), (a), (b)) # define rb_warn3L(l,fmt,a,b,c) WARN_CALL(WARN_ARGS_L(l, fmt, 4), (a), (b), (c)) # define rb_warn4L(l,fmt,a,b,c,d) WARN_CALL(WARN_ARGS_L(l, fmt, 5), (a), (b), (c), (d)) # define rb_warning0L(l,fmt) WARNING_CALL(WARNING_ARGS_L(l, fmt, 1)) # define rb_warning1L(l,fmt,a) WARNING_CALL(WARNING_ARGS_L(l, fmt, 2), (a)) # define rb_warning2L(l,fmt,a,b) WARNING_CALL(WARNING_ARGS_L(l, fmt, 3), (a), (b)) # define rb_warning3L(l,fmt,a,b,c) WARNING_CALL(WARNING_ARGS_L(l, fmt, 4), (a), (b), (c)) # define rb_warning4L(l,fmt,a,b,c,d) WARNING_CALL(WARNING_ARGS_L(l, fmt, 5), (a), (b), (c), (d)) #ifdef RIPPER extern const ID id_warn, id_warning, id_gets, id_assoc; # define ERR_MESG() STR_NEW2(mesg) /* to bypass Ripper DSL */ # define WARN_S_L(s,l) STR_NEW(s,l) # define WARN_S(s) STR_NEW2(s) # define WARN_I(i) INT2NUM(i) # define WARN_ID(i) rb_id2str(i) # define WARN_IVAL(i) i # define PRIsWARN PRIsVALUE # define rb_warn0L_experimental(l,fmt) WARN_CALL(WARN_ARGS_L(l, fmt, 1)) # define WARN_ARGS(fmt,n) p->value, id_warn, n, rb_usascii_str_new_lit(fmt) # define WARN_ARGS_L(l,fmt,n) WARN_ARGS(fmt,n) # ifdef HAVE_VA_ARGS_MACRO # define WARN_CALL(...) rb_funcall(__VA_ARGS__) # else # define WARN_CALL rb_funcall # endif # define WARNING_ARGS(fmt,n) p->value, id_warning, n, rb_usascii_str_new_lit(fmt) # define WARNING_ARGS_L(l, fmt,n) WARNING_ARGS(fmt,n) # ifdef HAVE_VA_ARGS_MACRO # define WARNING_CALL(...) rb_funcall(__VA_ARGS__) # else # define WARNING_CALL rb_funcall # endif # define compile_error ripper_compile_error #else # define WARN_S_L(s,l) s # define WARN_S(s) s # define WARN_I(i) i # define WARN_ID(i) rb_id2name(i) # define WARN_IVAL(i) NUM2INT(i) # define PRIsWARN PRIsVALUE # define WARN_ARGS(fmt,n) WARN_ARGS_L(p->ruby_sourceline,fmt,n) # define WARN_ARGS_L(l,fmt,n) p->ruby_sourcefile, (l), (fmt) # define WARN_CALL rb_compile_warn # define rb_warn0L_experimental(l,fmt) rb_category_compile_warn(RB_WARN_CATEGORY_EXPERIMENTAL, WARN_ARGS_L(l, fmt, 1)) # define WARNING_ARGS(fmt,n) WARN_ARGS(fmt,n) # define WARNING_ARGS_L(l,fmt,n) WARN_ARGS_L(l,fmt,n) # define WARNING_CALL rb_compile_warning PRINTF_ARGS(static void parser_compile_error(struct parser_params*, const rb_code_location_t *loc, const char *fmt, ...), 3, 4); # define compile_error(p, ...) parser_compile_error(p, NULL, __VA_ARGS__) #endif struct RNode_EXITS { NODE node; NODE *nd_chain; /* Assume NODE_BREAK, NODE_NEXT, NODE_REDO have nd_chain here */ NODE *nd_end; }; #define RNODE_EXITS(node) ((rb_node_exits_t*)(node)) static NODE * add_block_exit(struct parser_params *p, NODE *node) { if (!node) { compile_error(p, "unexpected null node"); return 0; } switch (nd_type(node)) { case NODE_BREAK: case NODE_NEXT: case NODE_REDO: break; default: compile_error(p, "unexpected node: %s", parser_node_name(nd_type(node))); return node; } if (!p->ctxt.in_defined) { rb_node_exits_t *exits = p->exits; if (exits) { RNODE_EXITS(exits->nd_end)->nd_chain = node; exits->nd_end = node; } } return node; } static rb_node_exits_t * init_block_exit(struct parser_params *p) { rb_node_exits_t *old = p->exits; rb_node_exits_t *exits = NODE_NEW_INTERNAL(NODE_EXITS, rb_node_exits_t); exits->nd_chain = 0; exits->nd_end = RNODE(exits); p->exits = exits; return old; } static rb_node_exits_t * allow_block_exit(struct parser_params *p) { rb_node_exits_t *exits = p->exits; p->exits = 0; return exits; } static void restore_block_exit(struct parser_params *p, rb_node_exits_t *exits) { p->exits = exits; } static void clear_block_exit(struct parser_params *p, bool error) { rb_node_exits_t *exits = p->exits; if (!exits) return; if (error && !compile_for_eval) { for (NODE *e = RNODE(exits); (e = RNODE_EXITS(e)->nd_chain) != 0; ) { switch (nd_type(e)) { case NODE_BREAK: yyerror1(&e->nd_loc, "Invalid break"); break; case NODE_NEXT: yyerror1(&e->nd_loc, "Invalid next"); break; case NODE_REDO: yyerror1(&e->nd_loc, "Invalid redo"); break; default: yyerror1(&e->nd_loc, "unexpected node"); goto end_checks; /* no nd_chain */ } } end_checks:; } exits->nd_end = RNODE(exits); exits->nd_chain = 0; } #define WARN_EOL(tok) \ (looking_at_eol_p(p) ? \ (void)rb_warning0("'" tok "' at the end of line without an expression") : \ (void)0) static int looking_at_eol_p(struct parser_params *p); static NODE * get_nd_value(struct parser_params *p, NODE *node) { switch (nd_type(node)) { case NODE_GASGN: return RNODE_GASGN(node)->nd_value; case NODE_IASGN: return RNODE_IASGN(node)->nd_value; case NODE_LASGN: return RNODE_LASGN(node)->nd_value; case NODE_DASGN: return RNODE_DASGN(node)->nd_value; case NODE_MASGN: return RNODE_MASGN(node)->nd_value; case NODE_CVASGN: return RNODE_CVASGN(node)->nd_value; case NODE_CDECL: return RNODE_CDECL(node)->nd_value; default: compile_error(p, "unexpected node: %s", parser_node_name(nd_type(node))); return 0; } } static void set_nd_value(struct parser_params *p, NODE *node, NODE *rhs) { switch (nd_type(node)) { case NODE_CDECL: RNODE_CDECL(node)->nd_value = rhs; break; case NODE_GASGN: RNODE_GASGN(node)->nd_value = rhs; break; case NODE_IASGN: RNODE_IASGN(node)->nd_value = rhs; break; case NODE_LASGN: RNODE_LASGN(node)->nd_value = rhs; break; case NODE_DASGN: RNODE_DASGN(node)->nd_value = rhs; break; case NODE_MASGN: RNODE_MASGN(node)->nd_value = rhs; break; case NODE_CVASGN: RNODE_CVASGN(node)->nd_value = rhs; break; default: compile_error(p, "unexpected node: %s", parser_node_name(nd_type(node))); break; } } static ID get_nd_vid(struct parser_params *p, NODE *node) { switch (nd_type(node)) { case NODE_CDECL: return RNODE_CDECL(node)->nd_vid; case NODE_GASGN: return RNODE_GASGN(node)->nd_vid; case NODE_IASGN: return RNODE_IASGN(node)->nd_vid; case NODE_LASGN: return RNODE_LASGN(node)->nd_vid; case NODE_DASGN: return RNODE_DASGN(node)->nd_vid; case NODE_CVASGN: return RNODE_CVASGN(node)->nd_vid; default: compile_error(p, "unexpected node: %s", parser_node_name(nd_type(node))); return 0; } } static NODE * get_nd_args(struct parser_params *p, NODE *node) { switch (nd_type(node)) { case NODE_CALL: return RNODE_CALL(node)->nd_args; case NODE_OPCALL: return RNODE_OPCALL(node)->nd_args; case NODE_FCALL: return RNODE_FCALL(node)->nd_args; case NODE_QCALL: return RNODE_QCALL(node)->nd_args; case NODE_VCALL: case NODE_SUPER: case NODE_ZSUPER: case NODE_YIELD: case NODE_RETURN: case NODE_BREAK: case NODE_NEXT: return 0; default: compile_error(p, "unexpected node: %s", parser_node_name(nd_type(node))); return 0; } } #ifndef RIPPER static st_index_t djb2(const uint8_t *str, size_t len) { st_index_t hash = 5381; for (size_t i = 0; i < len; i++) { hash = ((hash << 5) + hash) + str[i]; } return hash; } static st_index_t parser_memhash(const void *ptr, long len) { return djb2(ptr, len); } #endif #define PARSER_STRING_PTR(str) (str->ptr) #define PARSER_STRING_LEN(str) (str->len) #define STRING_SIZE(str) ((size_t)str->len + 1) #define STRING_TERM_LEN(str) (1) #define STRING_TERM_FILL(str) (str->ptr[str->len] = '\0') #define PARSER_STRING_RESIZE_CAPA_TERM(p,str,capacity,termlen) do {\ SIZED_REALLOC_N(str->ptr, char, (size_t)total + termlen, STRING_SIZE(str)); \ str->len = total; \ } while (0) #define STRING_SET_LEN(str, n) do { \ (str)->len = (n); \ } while (0) #define PARSER_STRING_GETMEM(str, ptrvar, lenvar) \ ((ptrvar) = str->ptr, \ (lenvar) = str->len) static rb_parser_string_t * rb_parser_string_new(rb_parser_t *p, const char *ptr, long len) { rb_parser_string_t *str; if (len < 0) { rb_bug("negative string size (or size too big): %ld", len); } str = xcalloc(1, sizeof(rb_parser_string_t)); str->ptr = xcalloc(len + 1, sizeof(char)); if (ptr) { memcpy(PARSER_STRING_PTR(str), ptr, len); } STRING_SET_LEN(str, len); STRING_TERM_FILL(str); return str; } static rb_parser_string_t * rb_parser_encoding_string_new(rb_parser_t *p, const char *ptr, long len, rb_encoding *enc) { rb_parser_string_t *str = rb_parser_string_new(p, ptr, len); str->coderange = RB_PARSER_ENC_CODERANGE_UNKNOWN; str->enc = enc; return str; } #ifndef RIPPER rb_parser_string_t * rb_str_to_parser_string(rb_parser_t *p, VALUE str) { /* Type check */ return rb_parser_encoding_string_new(p, RSTRING_PTR(str), RSTRING_LEN(str), rb_enc_get(str)); } #endif static void rb_parser_string_free(rb_parser_t *p, rb_parser_string_t *str) { if (!str) return; xfree(PARSER_STRING_PTR(str)); xfree(str); } #ifndef RIPPER static st_index_t rb_parser_str_hash(rb_parser_string_t *str) { return parser_memhash((const void *)PARSER_STRING_PTR(str), PARSER_STRING_LEN(str)); } #endif static size_t rb_parser_str_capacity(rb_parser_string_t *str, const int termlen) { return PARSER_STRING_LEN(str); } #ifndef RIPPER static char * rb_parser_string_end(rb_parser_string_t *str) { return &str->ptr[str->len]; } #endif static void rb_parser_string_set_encoding(rb_parser_string_t *str, rb_encoding *enc) { str->enc = enc; } static rb_encoding * rb_parser_str_get_encoding(rb_parser_string_t *str) { return str->enc; } static int PARSER_ENC_CODERANGE(rb_parser_string_t *str) { return str->coderange; } static void PARSER_ENC_CODERANGE_SET(rb_parser_string_t *str, int coderange) { str->coderange = coderange; } static void PARSER_ENCODING_CODERANGE_SET(rb_parser_string_t *str, rb_encoding *enc, enum rb_parser_string_coderange_type cr) { rb_parser_string_set_encoding(str, enc); PARSER_ENC_CODERANGE_SET(str, cr); } static void PARSER_ENCODING_CODERANGE_CLEAR(rb_parser_string_t *str) { str->coderange = RB_PARSER_ENC_CODERANGE_UNKNOWN; } static bool PARSER_ENC_CODERANGE_CLEAN_P(int cr) { return cr == RB_PARSER_ENC_CODERANGE_7BIT || cr == RB_PARSER_ENC_CODERANGE_VALID; } static const char * rb_parser_search_nonascii(const char *p, const char *e) { const char *s = p; for (; s < e; s++) { if (*s & 0x80) return s; } return NULL; } static int rb_parser_coderange_scan(struct parser_params *p, const char *ptr, long len, rb_encoding *enc) { const char *e = ptr + len; if (enc == rb_ascii8bit_encoding()) { /* enc is ASCII-8BIT. ASCII-8BIT string never be broken. */ ptr = rb_parser_search_nonascii(ptr, e); return ptr ? RB_PARSER_ENC_CODERANGE_VALID : RB_PARSER_ENC_CODERANGE_7BIT; } /* parser string encoding is always asciicompat */ ptr = rb_parser_search_nonascii(ptr, e); if (!ptr) return RB_PARSER_ENC_CODERANGE_7BIT; for (;;) { int ret = rb_enc_precise_mbclen(ptr, e, enc); if (!MBCLEN_CHARFOUND_P(ret)) return RB_PARSER_ENC_CODERANGE_BROKEN; ptr += MBCLEN_CHARFOUND_LEN(ret); if (ptr == e) break; ptr = rb_parser_search_nonascii(ptr, e); if (!ptr) break; } return RB_PARSER_ENC_CODERANGE_VALID; } static int rb_parser_enc_coderange_scan(struct parser_params *p, rb_parser_string_t *str, rb_encoding *enc) { return rb_parser_coderange_scan(p, PARSER_STRING_PTR(str), PARSER_STRING_LEN(str), enc); } static int rb_parser_enc_str_coderange(struct parser_params *p, rb_parser_string_t *str) { int cr = PARSER_ENC_CODERANGE(str); if (cr == RB_PARSER_ENC_CODERANGE_UNKNOWN) { cr = rb_parser_enc_coderange_scan(p, str, rb_parser_str_get_encoding(str)); PARSER_ENC_CODERANGE_SET(str, cr); } return cr; } static bool rb_parser_is_ascii_string(struct parser_params *p, rb_parser_string_t *str) { return rb_parser_enc_str_coderange(p, str) == RB_PARSER_ENC_CODERANGE_7BIT; } static int rb_parser_enc_str_asciionly_p(struct parser_params *p, rb_parser_string_t *str) { rb_encoding *enc = rb_parser_str_get_encoding(str); if (!rb_enc_asciicompat(enc)) return FALSE; else if (rb_parser_is_ascii_string(p, str)) return TRUE; return FALSE; } static rb_encoding * rb_parser_enc_compatible_latter(struct parser_params *p, rb_parser_string_t *str1, rb_parser_string_t *str2, rb_encoding *enc1, rb_encoding *enc2) { int cr1, cr2; if (PARSER_STRING_LEN(str2) == 0) return enc1; if (PARSER_STRING_LEN(str1) == 0) return (rb_enc_asciicompat(enc1) && rb_parser_enc_str_asciionly_p(p, str2)) ? enc1 : enc2; if (!rb_enc_asciicompat(enc1) || !rb_enc_asciicompat(enc2)) { return 0; } cr1 = rb_parser_enc_str_coderange(p, str1); cr2 = rb_parser_enc_str_coderange(p, str2); if (cr1 != cr2) { if (cr1 == RB_PARSER_ENC_CODERANGE_7BIT) return enc2; if (cr2 == RB_PARSER_ENC_CODERANGE_7BIT) return enc1; } if (cr2 == RB_PARSER_ENC_CODERANGE_7BIT) { return enc1; } if (cr1 == RB_PARSER_ENC_CODERANGE_7BIT) { return enc2; } return 0; } static rb_encoding * rb_parser_enc_compatible(struct parser_params *p, rb_parser_string_t *str1, rb_parser_string_t *str2) { rb_encoding *enc1 = rb_parser_str_get_encoding(str1); rb_encoding *enc2 = rb_parser_str_get_encoding(str2); if (enc1 == NULL || enc2 == NULL) return 0; if (enc1 == enc2) { return enc1; } return rb_parser_enc_compatible_latter(p, str1, str2, enc1, enc2); } static void rb_parser_str_modify(rb_parser_string_t *str) { PARSER_ENCODING_CODERANGE_CLEAR(str); } static void rb_parser_str_set_len(struct parser_params *p, rb_parser_string_t *str, long len) { long capa; const int termlen = STRING_TERM_LEN(str); if (len > (capa = (long)(rb_parser_str_capacity(str, termlen))) || len < 0) { rb_bug("probable buffer overflow: %ld for %ld", len, capa); } int cr = PARSER_ENC_CODERANGE(str); if (cr == RB_PARSER_ENC_CODERANGE_UNKNOWN) { /* Leave unknown. */ } else if (len > PARSER_STRING_LEN(str)) { PARSER_ENC_CODERANGE_SET(str, RB_PARSER_ENC_CODERANGE_UNKNOWN); } else if (len < PARSER_STRING_LEN(str)) { if (cr != RB_PARSER_ENC_CODERANGE_7BIT) { /* ASCII-only string is keeping after truncated. Valid * and broken may be invalid or valid, leave unknown. */ PARSER_ENC_CODERANGE_SET(str, RB_PARSER_ENC_CODERANGE_UNKNOWN); } } STRING_SET_LEN(str, len); STRING_TERM_FILL(str); } static rb_parser_string_t * rb_parser_str_buf_cat(struct parser_params *p, rb_parser_string_t *str, const char *ptr, long len) { rb_parser_str_modify(str); if (len == 0) return 0; long total, olen, off = -1; char *sptr; const int termlen = STRING_TERM_LEN(str); PARSER_STRING_GETMEM(str, sptr, olen); if (ptr >= sptr && ptr <= sptr + olen) { off = ptr - sptr; } if (olen > LONG_MAX - len) { compile_error(p, "string sizes too big"); return 0; } total = olen + len; PARSER_STRING_RESIZE_CAPA_TERM(p, str, total, termlen); sptr = PARSER_STRING_PTR(str); if (off != -1) { ptr = sptr + off; } memcpy(sptr + olen, ptr, len); STRING_SET_LEN(str, total); STRING_TERM_FILL(str); return str; } static rb_parser_string_t * rb_parser_enc_cr_str_buf_cat(struct parser_params *p, rb_parser_string_t *str, const char *ptr, long len, rb_encoding *ptr_enc, int ptr_cr, int *ptr_cr_ret) { int str_cr, res_cr; rb_encoding *str_enc, *res_enc; str_enc = rb_parser_str_get_encoding(str); str_cr = PARSER_STRING_LEN(str) ? PARSER_ENC_CODERANGE(str) : RB_PARSER_ENC_CODERANGE_7BIT; if (str_enc == ptr_enc) { if (str_cr != RB_PARSER_ENC_CODERANGE_UNKNOWN && ptr_cr == RB_PARSER_ENC_CODERANGE_UNKNOWN) { ptr_cr = rb_parser_coderange_scan(p, ptr, len, ptr_enc); } } else { /* parser string encoding is always asciicompat */ if (ptr_cr == RB_PARSER_ENC_CODERANGE_UNKNOWN) { ptr_cr = rb_parser_coderange_scan(p, ptr, len, ptr_enc); } if (str_cr == RB_PARSER_ENC_CODERANGE_UNKNOWN) { if (str_enc == rb_ascii8bit_encoding() || ptr_cr != RB_PARSER_ENC_CODERANGE_7BIT) { str_cr = rb_parser_enc_str_coderange(p, str); } } } if (ptr_cr_ret) *ptr_cr_ret = ptr_cr; if (str_enc != ptr_enc && str_cr != RB_PARSER_ENC_CODERANGE_7BIT && ptr_cr != RB_PARSER_ENC_CODERANGE_7BIT) { goto incompatible; } if (str_cr == RB_PARSER_ENC_CODERANGE_UNKNOWN) { res_enc = str_enc; res_cr = RB_PARSER_ENC_CODERANGE_UNKNOWN; } else if (str_cr == RB_PARSER_ENC_CODERANGE_7BIT) { if (ptr_cr == RB_PARSER_ENC_CODERANGE_7BIT) { res_enc = str_enc; res_cr = RB_PARSER_ENC_CODERANGE_7BIT; } else { res_enc = ptr_enc; res_cr = ptr_cr; } } else if (str_cr == RB_PARSER_ENC_CODERANGE_VALID) { res_enc = str_enc; if (PARSER_ENC_CODERANGE_CLEAN_P(ptr_cr)) res_cr = str_cr; else res_cr = ptr_cr; } else { /* str_cr == RB_PARSER_ENC_CODERANGE_BROKEN */ res_enc = str_enc; res_cr = str_cr; if (0 < len) res_cr = RB_PARSER_ENC_CODERANGE_UNKNOWN; } if (len < 0) { compile_error(p, "negative string size (or size too big)"); } rb_parser_str_buf_cat(p, str, ptr, len); PARSER_ENCODING_CODERANGE_SET(str, res_enc, res_cr); return str; incompatible: compile_error(p, "incompatible character encodings: %s and %s", rb_enc_name(str_enc), rb_enc_name(ptr_enc)); UNREACHABLE_RETURN(0); } static rb_parser_string_t * rb_parser_str_buf_append(struct parser_params *p, rb_parser_string_t *str, rb_parser_string_t *str2) { int str2_cr = rb_parser_enc_str_coderange(p, str2); rb_parser_enc_cr_str_buf_cat(p, str, PARSER_STRING_PTR(str2), PARSER_STRING_LEN(str2), rb_parser_str_get_encoding(str2), str2_cr, &str2_cr); PARSER_ENC_CODERANGE_SET(str2, str2_cr); return str; } static rb_parser_string_t * rb_parser_str_resize(struct parser_params *p, rb_parser_string_t *str, long len) { if (len < 0) { rb_bug("negative string size (or size too big)"); } long slen = PARSER_STRING_LEN(str); if (slen > len && PARSER_ENC_CODERANGE(str) != RB_PARSER_ENC_CODERANGE_7BIT) { PARSER_ENCODING_CODERANGE_CLEAR(str); } { long capa; const int termlen = STRING_TERM_LEN(str); if ((capa = slen) < len) { SIZED_REALLOC_N(str->ptr, char, (size_t)len + termlen, STRING_SIZE(str)); } else if (len == slen) return str; STRING_SET_LEN(str, len); STRING_TERM_FILL(str); } return str; } #ifndef UNIVERSAL_PARSER #ifndef RIPPER # define PARSER_ENC_STRING_GETMEM(str, ptrvar, lenvar, encvar) \ ((ptrvar) = str->ptr, \ (lenvar) = str->len, \ (encvar) = str->enc) static int rb_parser_string_hash_cmp(rb_parser_string_t *str1, rb_parser_string_t *str2) { long len1, len2; const char *ptr1, *ptr2; rb_encoding *enc1, *enc2; PARSER_ENC_STRING_GETMEM(str1, ptr1, len1, enc1); PARSER_ENC_STRING_GETMEM(str2, ptr2, len2, enc2); return (len1 != len2 || enc1 != enc2 || memcmp(ptr1, ptr2, len1) != 0); } #endif #endif %} %expect 0 %define api.pure %define parse.error verbose %printer { if ((NODE *)$$ == (NODE *)-1) { rb_parser_printf(p, "NODE_SPECIAL"); } else if ($$) { rb_parser_printf(p, "%s", parser_node_name(nd_type(RNODE($$)))); } } %printer { rb_parser_printf(p, "%"PRIsVALUE, rb_id2str($$)); } %printer { switch (nd_type(RNODE($$))) { case NODE_INTEGER: rb_parser_printf(p, "%+"PRIsVALUE, rb_node_integer_literal_val($$)); break; case NODE_FLOAT: rb_parser_printf(p, "%+"PRIsVALUE, rb_node_float_literal_val($$)); break; case NODE_RATIONAL: rb_parser_printf(p, "%+"PRIsVALUE, rb_node_rational_literal_val($$)); break; case NODE_IMAGINARY: rb_parser_printf(p, "%+"PRIsVALUE, rb_node_imaginary_literal_val($$)); break; case NODE_LIT: rb_parser_printf(p, "%+"PRIsVALUE, RNODE_LIT($$)->nd_lit); break; default: break; } } tINTEGER tFLOAT tRATIONAL tIMAGINARY tSTRING_CONTENT tCHAR %printer { rb_parser_printf(p, "$%ld", RNODE_NTH_REF($$)->nd_nth); } tNTH_REF %printer { rb_parser_printf(p, "$%c", (int)RNODE_BACK_REF($$)->nd_nth); } tBACK_REF %lex-param {struct parser_params *p} %parse-param {struct parser_params *p} %initial-action { RUBY_SET_YYLLOC_OF_NONE(@$); }; %after-shift after_shift %before-reduce before_reduce %after-reduce after_reduce %after-shift-error-token after_shift_error_token %after-pop-stack after_pop_stack %union { VALUE val; NODE *node; rb_node_fcall_t *node_fcall; rb_node_args_t *node_args; rb_node_args_aux_t *node_args_aux; rb_node_opt_arg_t *node_opt_arg; rb_node_kw_arg_t *node_kw_arg; rb_node_block_pass_t *node_block_pass; rb_node_masgn_t *node_masgn; rb_node_def_temp_t *node_def_temp; rb_node_exits_t *node_exits; ID id; int num; st_table *tbl; const struct vtable *vars; struct rb_strterm_struct *strterm; struct lex_context ctxt; } %token keyword_class "'class'" keyword_module "'module'" keyword_def "'def'" keyword_undef "'undef'" keyword_begin "'begin'" keyword_rescue "'rescue'" keyword_ensure "'ensure'" keyword_end "'end'" keyword_if "'if'" keyword_unless "'unless'" keyword_then "'then'" keyword_elsif "'elsif'" keyword_else "'else'" keyword_case "'case'" keyword_when "'when'" keyword_while "'while'" keyword_until "'until'" keyword_for "'for'" keyword_break "'break'" keyword_next "'next'" keyword_redo "'redo'" keyword_retry "'retry'" keyword_in "'in'" keyword_do "'do'" keyword_do_cond "'do' for condition" keyword_do_block "'do' for block" keyword_do_LAMBDA "'do' for lambda" keyword_return "'return'" keyword_yield "'yield'" keyword_super "'super'" keyword_self "'self'" keyword_nil "'nil'" keyword_true "'true'" keyword_false "'false'" keyword_and "'and'" keyword_or "'or'" keyword_not "'not'" modifier_if "'if' modifier" modifier_unless "'unless' modifier" modifier_while "'while' modifier" modifier_until "'until' modifier" modifier_rescue "'rescue' modifier" keyword_alias "'alias'" keyword_defined "'defined?'" keyword_BEGIN "'BEGIN'" keyword_END "'END'" keyword__LINE__ "'__LINE__'" keyword__FILE__ "'__FILE__'" keyword__ENCODING__ "'__ENCODING__'" %token tIDENTIFIER "local variable or method" %token tFID "method" %token tGVAR "global variable" %token tIVAR "instance variable" %token tCONSTANT "constant" %token tCVAR "class variable" %token tLABEL "label" %token tINTEGER "integer literal" %token tFLOAT "float literal" %token tRATIONAL "rational literal" %token tIMAGINARY "imaginary literal" %token tCHAR "char literal" %token tNTH_REF "numbered reference" %token tBACK_REF "back reference" %token tSTRING_CONTENT "literal content" %token tREGEXP_END %token tDUMNY_END "dummy end" %type singleton strings string string1 xstring regexp %type string_contents xstring_contents regexp_contents string_content %type words symbols symbol_list qwords qsymbols word_list qword_list qsym_list word %type literal numeric simple_numeric ssym dsym symbol cpath /*ripper*/ %type defn_head defs_head k_def /*ripper*/ %type block_open k_while k_until k_for allow_exits %type top_compstmt top_stmts top_stmt begin_block endless_arg endless_command %type bodystmt compstmt stmts stmt_or_begin stmt expr arg primary command command_call method_call %type expr_value expr_value_do arg_value primary_value rel_expr %type fcall %type if_tail opt_else case_body case_args cases opt_rescue exc_list exc_var opt_ensure %type args arg_splat call_args opt_call_args %type paren_args opt_paren_args %type args_tail opt_args_tail block_args_tail opt_block_args_tail %type command_args aref_args %type opt_block_arg block_arg %type var_ref var_lhs %type command_rhs arg_rhs %type command_asgn mrhs mrhs_arg superclass block_call block_command %type f_block_optarg f_block_opt %type f_arglist f_opt_paren_args f_paren_args f_args %type f_arg f_arg_item %type f_optarg %type f_marg f_marg_list f_rest_marg %type f_margs %type assoc_list assocs assoc undef_list backref string_dvar for_var %type block_param opt_block_param block_param_def %type f_opt %type f_kwarg f_kw f_block_kwarg f_block_kw %type bv_decls opt_bv_decl bvar %type lambda lambda_body brace_body do_body %type f_larglist %type brace_block cmd_brace_block do_block lhs none fitem %type mlhs_head mlhs_item mlhs_node mlhs_post %type mlhs mlhs_basic mlhs_inner %type p_case_body p_cases p_top_expr p_top_expr_body %type p_expr p_as p_alt p_expr_basic p_find %type p_args p_args_head p_args_tail p_args_post p_arg p_rest %type p_value p_primitive p_variable p_var_ref p_expr_ref p_const %type p_kwargs p_kwarg p_kw %type keyword_variable user_variable sym operation operation2 operation3 %type cname fname op f_rest_arg f_block_arg opt_f_block_arg f_norm_arg f_bad_arg %type f_kwrest f_label f_arg_asgn call_op call_op2 reswords relop dot_or_colon %type p_kwrest p_kwnorest p_any_kwrest p_kw_label %type f_no_kwarg f_any_kwrest args_forward excessed_comma nonlocal_var def_name %type lex_ctxt begin_defined k_class k_module k_END k_rescue k_ensure after_rescue %type p_in_kwarg %type p_lparen p_lbracket p_pktbl p_pvtbl /* ripper */ %type max_numparam /* ripper */ %type numparam /* ripper */ %type it_id %token END_OF_INPUT 0 "end-of-input" %token '.' /* escaped chars, should be ignored otherwise */ %token '\\' "backslash" %token tSP "escaped space" %token '\t' "escaped horizontal tab" %token '\f' "escaped form feed" %token '\r' "escaped carriage return" %token '\13' "escaped vertical tab" %token tUPLUS RUBY_TOKEN(UPLUS) "unary+" %token tUMINUS RUBY_TOKEN(UMINUS) "unary-" %token tPOW RUBY_TOKEN(POW) "**" %token tCMP RUBY_TOKEN(CMP) "<=>" %token tEQ RUBY_TOKEN(EQ) "==" %token tEQQ RUBY_TOKEN(EQQ) "===" %token tNEQ RUBY_TOKEN(NEQ) "!=" %token tGEQ RUBY_TOKEN(GEQ) ">=" %token tLEQ RUBY_TOKEN(LEQ) "<=" %token tANDOP RUBY_TOKEN(ANDOP) "&&" %token tOROP RUBY_TOKEN(OROP) "||" %token tMATCH RUBY_TOKEN(MATCH) "=~" %token tNMATCH RUBY_TOKEN(NMATCH) "!~" %token tDOT2 RUBY_TOKEN(DOT2) ".." %token tDOT3 RUBY_TOKEN(DOT3) "..." %token tBDOT2 RUBY_TOKEN(BDOT2) "(.." %token tBDOT3 RUBY_TOKEN(BDOT3) "(..." %token tAREF RUBY_TOKEN(AREF) "[]" %token tASET RUBY_TOKEN(ASET) "[]=" %token tLSHFT RUBY_TOKEN(LSHFT) "<<" %token tRSHFT RUBY_TOKEN(RSHFT) ">>" %token tANDDOT RUBY_TOKEN(ANDDOT) "&." %token tCOLON2 RUBY_TOKEN(COLON2) "::" %token tCOLON3 ":: at EXPR_BEG" %token tOP_ASGN "operator-assignment" /* +=, -= etc. */ %token tASSOC "=>" %token tLPAREN "(" %token tLPAREN_ARG "( arg" %token tRPAREN ")" %token tLBRACK "[" %token tLBRACE "{" %token tLBRACE_ARG "{ arg" %token tSTAR "*" %token tDSTAR "**arg" %token tAMPER "&" %token tLAMBDA "->" %token tSYMBEG "symbol literal" %token tSTRING_BEG "string literal" %token tXSTRING_BEG "backtick literal" %token tREGEXP_BEG "regexp literal" %token tWORDS_BEG "word list" %token tQWORDS_BEG "verbatim word list" %token tSYMBOLS_BEG "symbol list" %token tQSYMBOLS_BEG "verbatim symbol list" %token tSTRING_END "terminator" %token tSTRING_DEND "'}'" %token tSTRING_DBEG tSTRING_DVAR tLAMBEG tLABEL_END %token tIGNORED_NL tCOMMENT tEMBDOC_BEG tEMBDOC tEMBDOC_END %token tHEREDOC_BEG tHEREDOC_END k__END__ /* * precedence table */ %nonassoc tLOWEST %nonassoc tLBRACE_ARG %nonassoc modifier_if modifier_unless modifier_while modifier_until keyword_in %left keyword_or keyword_and %right keyword_not %nonassoc keyword_defined %right '=' tOP_ASGN %left modifier_rescue %right '?' ':' %nonassoc tDOT2 tDOT3 tBDOT2 tBDOT3 %left tOROP %left tANDOP %nonassoc tCMP tEQ tEQQ tNEQ tMATCH tNMATCH %left '>' tGEQ '<' tLEQ %left '|' '^' %left '&' %left tLSHFT tRSHFT %left '+' '-' %left '*' '/' '%' %right tUMINUS_NUM tUMINUS %right tPOW %right '!' '~' tUPLUS %token tLAST_TOKEN %% program : { SET_LEX_STATE(EXPR_BEG); local_push(p, ifndef_ripper(1)+0); /* jumps are possible in the top-level loop. */ if (!ifndef_ripper(p->do_loop) + 0) init_block_exit(p); } top_compstmt { if ($2 && !compile_for_eval) { NODE *node = $2; /* last expression should not be void */ if (nd_type_p(node, NODE_BLOCK)) { while (RNODE_BLOCK(node)->nd_next) { node = RNODE_BLOCK(node)->nd_next; } node = RNODE_BLOCK(node)->nd_head; } node = remove_begin(node); void_expr(p, node); } p->eval_tree = NEW_SCOPE(0, block_append(p, p->eval_tree, $2), &@$); /*% ripper[final]: program!($:2) %*/ local_pop(p); } ; top_compstmt : top_stmts opt_terms { $$ = void_stmts(p, $1); } ; top_stmts : none { $$ = NEW_BEGIN(0, &@$); /*% ripper: stmts_add!(stmts_new!, void_stmt!) %*/ } | top_stmt { $$ = newline_node($1); /*% ripper: stmts_add!(stmts_new!, $:1) %*/ } | top_stmts terms top_stmt { $$ = block_append(p, $1, newline_node($3)); /*% ripper: stmts_add!($:1, $:3) %*/ } ; top_stmt : stmt { clear_block_exit(p, true); $$ = $1; } | keyword_BEGIN begin_block { $$ = $2; /*% ripper: get_value($:2); %*/ } ; block_open : '{' {$$ = init_block_exit(p);}; begin_block : block_open top_compstmt '}' { restore_block_exit(p, $block_open); p->eval_tree_begin = block_append(p, p->eval_tree_begin, NEW_BEGIN($2, &@$)); $$ = NEW_BEGIN(0, &@$); /*% ripper: BEGIN!($:2) %*/ } ; bodystmt : compstmt[body] lex_ctxt[ctxt] opt_rescue k_else { if (!$opt_rescue) yyerror1(&@k_else, "else without rescue is useless"); next_rescue_context(&p->ctxt, &$ctxt, after_else); } compstmt[elsebody] { next_rescue_context(&p->ctxt, &$ctxt, after_ensure); } opt_ensure { $$ = new_bodystmt(p, $body, $opt_rescue, $elsebody, $opt_ensure, &@$); /*% ripper: bodystmt!($:body, $:opt_rescue, $:elsebody, $:opt_ensure) %*/ } | compstmt[body] lex_ctxt[ctxt] opt_rescue { next_rescue_context(&p->ctxt, &$ctxt, after_ensure); } opt_ensure { $$ = new_bodystmt(p, $body, $opt_rescue, 0, $opt_ensure, &@$); /*% ripper: bodystmt!($:body, $:opt_rescue, Qnil, $:opt_ensure) %*/ } ; compstmt : stmts opt_terms { $$ = void_stmts(p, $1); } ; stmts : none { $$ = NEW_BEGIN(0, &@$); /*% ripper: stmts_add!(stmts_new!, void_stmt!) %*/ } | stmt_or_begin { $$ = newline_node($1); /*% ripper: stmts_add!(stmts_new!, $:1) %*/ } | stmts terms stmt_or_begin { $$ = block_append(p, $1, newline_node($3)); /*% ripper: stmts_add!($:1, $:3) %*/ } ; stmt_or_begin : stmt { $$ = $1; } | keyword_BEGIN { yyerror1(&@1, "BEGIN is permitted only at toplevel"); } begin_block { $$ = $3; } ; allow_exits : {$$ = allow_block_exit(p);}; k_END : keyword_END lex_ctxt { $$ = $2; p->ctxt.in_rescue = before_rescue; /*% ripper: get_value($:2); %*/ }; stmt : keyword_alias fitem {SET_LEX_STATE(EXPR_FNAME|EXPR_FITEM);} fitem { $$ = NEW_ALIAS($2, $4, &@$); /*% ripper: alias!($:2, $:4) %*/ } | keyword_alias tGVAR tGVAR { $$ = NEW_VALIAS($2, $3, &@$); /*% ripper: var_alias!($:2, $:3) %*/ } | keyword_alias tGVAR tBACK_REF { char buf[2]; buf[0] = '$'; buf[1] = (char)RNODE_BACK_REF($3)->nd_nth; $$ = NEW_VALIAS($2, rb_intern2(buf, 2), &@$); /*% ripper: var_alias!($:2, $:3) %*/ } | keyword_alias tGVAR tNTH_REF { static const char mesg[] = "can't make alias for the number variables"; /*%%%*/ yyerror1(&@3, mesg); /*% %*/ $$ = NEW_ERROR(&@$); /*% ripper[error]: alias_error!(ERR_MESG(), $:3) %*/ } | keyword_undef undef_list { $$ = $2; /*% ripper: undef!($:2) %*/ } | stmt modifier_if expr_value { $$ = new_if(p, $3, remove_begin($1), 0, &@$); fixpos($$, $3); /*% ripper: if_mod!($:3, $:1) %*/ } | stmt modifier_unless expr_value { $$ = new_unless(p, $3, remove_begin($1), 0, &@$); fixpos($$, $3); /*% ripper: unless_mod!($:3, $:1) %*/ } | stmt modifier_while expr_value { clear_block_exit(p, false); if ($1 && nd_type_p($1, NODE_BEGIN)) { $$ = NEW_WHILE(cond(p, $3, &@3), RNODE_BEGIN($1)->nd_body, 0, &@$); } else { $$ = NEW_WHILE(cond(p, $3, &@3), $1, 1, &@$); } /*% ripper: while_mod!($:3, $:1) %*/ } | stmt modifier_until expr_value { clear_block_exit(p, false); if ($1 && nd_type_p($1, NODE_BEGIN)) { $$ = NEW_UNTIL(cond(p, $3, &@3), RNODE_BEGIN($1)->nd_body, 0, &@$); } else { $$ = NEW_UNTIL(cond(p, $3, &@3), $1, 1, &@$); } /*% ripper: until_mod!($:3, $:1) %*/ } | stmt modifier_rescue after_rescue stmt { p->ctxt.in_rescue = $3.in_rescue; NODE *resq; YYLTYPE loc = code_loc_gen(&@2, &@4); resq = NEW_RESBODY(0, remove_begin($4), 0, &loc); $$ = NEW_RESCUE(remove_begin($1), resq, 0, &@$); /*% ripper: rescue_mod!($:1, $:4) %*/ } | k_END allow_exits '{' compstmt '}' { if (p->ctxt.in_def) { rb_warn0("END in method; use at_exit"); } restore_block_exit(p, $allow_exits); p->ctxt = $k_END; { NODE *scope = NEW_SCOPE2(0 /* tbl */, 0 /* args */, $compstmt /* body */, &@$); $$ = NEW_POSTEXE(scope, &@$); } /*% ripper: END!($:compstmt) %*/ } | command_asgn | mlhs '=' lex_ctxt command_call { value_expr($4); $$ = node_assign(p, (NODE *)$1, $4, $3, &@$); /*% ripper: massign!($:1, $:4) %*/ } | lhs '=' lex_ctxt mrhs { $$ = node_assign(p, $1, $4, $3, &@$); /*% ripper: assign!($:1, $:4) %*/ } | mlhs '=' lex_ctxt mrhs_arg modifier_rescue after_rescue stmt[resbody] { p->ctxt.in_rescue = $3.in_rescue; YYLTYPE loc = code_loc_gen(&@modifier_rescue, &@resbody); $resbody = NEW_RESBODY(0, remove_begin($resbody), 0, &loc); loc.beg_pos = @mrhs_arg.beg_pos; $mrhs_arg = NEW_RESCUE($mrhs_arg, $resbody, 0, &loc); $$ = node_assign(p, (NODE *)$mlhs, $mrhs_arg, $lex_ctxt, &@$); /*% ripper: massign!($:1, rescue_mod!($:4, $:7)) %*/ } | mlhs '=' lex_ctxt mrhs_arg { $$ = node_assign(p, (NODE *)$1, $4, $3, &@$); /*% ripper: massign!($:1, $:4) %*/ } | expr | error { (void)yynerrs; $$ = NEW_ERROR(&@$); } ; command_asgn : lhs '=' lex_ctxt command_rhs { $$ = node_assign(p, $1, $4, $3, &@$); /*% ripper: assign!($:1, $:4) %*/ } | var_lhs tOP_ASGN lex_ctxt command_rhs { $$ = new_op_assign(p, $1, $2, $4, $3, &@$); /*% ripper: opassign!($:1, $:2, $:4) %*/ } | primary_value '[' opt_call_args rbracket tOP_ASGN lex_ctxt command_rhs { $$ = new_ary_op_assign(p, $1, $3, $5, $7, &@3, &@$); /*% ripper: opassign!(aref_field!($:1, $:3), $:5, $:7) %*/ } | primary_value call_op tIDENTIFIER tOP_ASGN lex_ctxt command_rhs { $$ = new_attr_op_assign(p, $1, $2, $3, $4, $6, &@$); /*% ripper: opassign!(field!($:1, $:2, $:3), $:4, $:6) %*/ } | primary_value call_op tCONSTANT tOP_ASGN lex_ctxt command_rhs { $$ = new_attr_op_assign(p, $1, $2, $3, $4, $6, &@$); /*% ripper: opassign!(field!($:1, $:2, $:3), $:4, $:6) %*/ } | primary_value tCOLON2 tCONSTANT tOP_ASGN lex_ctxt command_rhs { YYLTYPE loc = code_loc_gen(&@1, &@3); $$ = new_const_op_assign(p, NEW_COLON2($1, $3, &loc), $4, $6, $5, &@$); /*% ripper: opassign!(const_path_field!($:1, $:3), $:4, $:6) %*/ } | primary_value tCOLON2 tIDENTIFIER tOP_ASGN lex_ctxt command_rhs { $$ = new_attr_op_assign(p, $1, idCOLON2, $3, $4, $6, &@$); /*% ripper: opassign!(field!($:1, $:2, $:3), $:4, $:6) %*/ } | defn_head[head] f_opt_paren_args[args] '=' endless_command[bodystmt] { endless_method_name(p, $head->nd_mid, &@head); restore_defun(p, $head); $bodystmt = new_scope_body(p, $args, $bodystmt, &@$); ($$ = $head->nd_def)->nd_loc = @$; RNODE_DEFN($$)->nd_defn = $bodystmt; /*%%%*/ /*% VALUE val = dispatch4(bodystmt, get_value($:bodystmt), Qnil, Qnil, Qnil); val = dispatch3(def, get_value($:head), get_value($:args), val); set_value(val); %*/ local_pop(p); } | defs_head[head] f_opt_paren_args[args] '=' endless_command[bodystmt] { endless_method_name(p, $head->nd_mid, &@head); restore_defun(p, $head); $bodystmt = new_scope_body(p, $args, $bodystmt, &@$); ($$ = $head->nd_def)->nd_loc = @$; RNODE_DEFS($$)->nd_defn = $bodystmt; /*%%%*/ /*% VALUE val = dispatch4(bodystmt, get_value($:bodystmt), Qnil, Qnil, Qnil); val = defs(p, get_value($:head), get_value($:args), val); set_value(val); %*/ local_pop(p); } | backref tOP_ASGN lex_ctxt command_rhs { /*%%%*/ rb_backref_error(p, $1); /*% %*/ $$ = NEW_ERROR(&@$); /*% ripper[error]: backref_error(p, RNODE($:1), assign!(var_field(p, get_value($:1)), $:4)) %*/ } ; endless_command : command | endless_command modifier_rescue after_rescue arg { p->ctxt.in_rescue = $3.in_rescue; $$ = rescued_expr(p, $1, $4, &@1, &@2, &@4); /*% ripper: rescue_mod!($:1, $:4) %*/ } | keyword_not opt_nl endless_command { $$ = call_uni_op(p, method_cond(p, $3, &@3), METHOD_NOT, &@1, &@$); /*% ripper: unary!(ID2VAL(idNOT), $:3) %*/ } ; command_rhs : command_call %prec tOP_ASGN { value_expr($1); $$ = $1; } | command_call modifier_rescue after_rescue stmt { p->ctxt.in_rescue = $3.in_rescue; YYLTYPE loc = code_loc_gen(&@2, &@4); value_expr($1); $$ = NEW_RESCUE($1, NEW_RESBODY(0, remove_begin($4), 0, &loc), 0, &@$); /*% ripper: rescue_mod!($:1, $:4) %*/ } | command_asgn ; expr : command_call | expr keyword_and expr { $$ = logop(p, idAND, $1, $3, &@2, &@$); /*% ripper: binary!($:1, ID2VAL(idAND), $:3) %*/ } | expr keyword_or expr { $$ = logop(p, idOR, $1, $3, &@2, &@$); /*% ripper: binary!($:1, ID2VAL(idOR), $:3) %*/ } | keyword_not opt_nl expr { $$ = call_uni_op(p, method_cond(p, $3, &@3), METHOD_NOT, &@1, &@$); /*% ripper: unary!(ID2VAL(idNOT), $:3) %*/ } | '!' command_call { $$ = call_uni_op(p, method_cond(p, $2, &@2), '!', &@1, &@$); /*% ripper: unary!(ID2VAL('\'!\''), $:2) %*/ } | arg tASSOC { value_expr($arg); } p_in_kwarg[ctxt] p_pvtbl p_pktbl p_top_expr_body[body] { pop_pktbl(p, $p_pktbl); pop_pvtbl(p, $p_pvtbl); p->ctxt.in_kwarg = $ctxt.in_kwarg; $$ = NEW_CASE3($arg, NEW_IN($body, 0, 0, &@body), &@$); /*% ripper: case!($:arg, in!($:body, Qnil, Qnil)) %*/ } | arg keyword_in { value_expr($arg); } p_in_kwarg[ctxt] p_pvtbl p_pktbl p_top_expr_body[body] { pop_pktbl(p, $p_pktbl); pop_pvtbl(p, $p_pvtbl); p->ctxt.in_kwarg = $ctxt.in_kwarg; $$ = NEW_CASE3($arg, NEW_IN($body, NEW_TRUE(&@body), NEW_FALSE(&@body), &@body), &@$); /*% ripper: case!($:arg, in!($:body, Qnil, Qnil)) %*/ } | arg %prec tLBRACE_ARG ; def_name : fname { ID fname = $1; numparam_name(p, fname); local_push(p, 0); p->cur_arg = 0; p->ctxt.in_def = 1; p->ctxt.in_rescue = before_rescue; $$ = $1; } ; defn_head : k_def def_name { $$ = def_head_save(p, $k_def); $$->nd_mid = $def_name; $$->nd_def = NEW_DEFN($def_name, 0, &@$); /*% ripper: get_value($:def_name); %*/ } ; defs_head : k_def singleton dot_or_colon { SET_LEX_STATE(EXPR_FNAME); p->ctxt.in_argdef = 1; } def_name { SET_LEX_STATE(EXPR_ENDFN|EXPR_LABEL); /* force for args */ $$ = def_head_save(p, $k_def); $$->nd_mid = $def_name; $$->nd_def = NEW_DEFS($singleton, $def_name, 0, &@$); /*%%%*/ /*% set_value(rb_ary_new_from_args(3, get_value($:singleton), get_value($:dot_or_colon), get_value($:def_name))); %*/ } ; expr_value : expr { value_expr($1); $$ = $1; } | error { $$ = NEW_ERROR(&@$); } ; expr_value_do : {COND_PUSH(1);} expr_value do {COND_POP();} { $$ = $2; /*% ripper: get_value($:2); %*/ } ; command_call : command | block_command ; block_command : block_call | block_call call_op2 operation2 command_args { $$ = new_qcall(p, $2, $1, $3, $4, &@3, &@$); /*% ripper: method_add_arg!(call!($:1, $:2, $:3), $:4) %*/ } ; cmd_brace_block : tLBRACE_ARG brace_body '}' { $$ = $2; set_embraced_location($$, &@1, &@3); /*% ripper: get_value($:2); %*/ } ; fcall : operation { $$ = NEW_FCALL($1, 0, &@$); /*% ripper: get_value($:1); %*/ } ; command : fcall command_args %prec tLOWEST { $1->nd_args = $2; nd_set_last_loc($1, @2.end_pos); $$ = (NODE *)$1; /*% ripper: command!($:1, $:2) %*/ } | fcall command_args cmd_brace_block { block_dup_check(p, $2, $3); $1->nd_args = $2; $$ = method_add_block(p, (NODE *)$1, $3, &@$); fixpos($$, RNODE($1)); nd_set_last_loc($1, @2.end_pos); /*% ripper: method_add_block!(command!($:1, $:2), $:3) %*/ } | primary_value call_op operation2 command_args %prec tLOWEST { $$ = new_command_qcall(p, $2, $1, $3, $4, Qnull, &@3, &@$); /*% ripper: command_call!($:1, $:2, $:3, $:4) %*/ } | primary_value call_op operation2 command_args cmd_brace_block { $$ = new_command_qcall(p, $2, $1, $3, $4, $5, &@3, &@$); /*% ripper: method_add_block!(command_call!($:1, $:2, $:3, $:4), $:5) %*/ } | primary_value tCOLON2 operation2 command_args %prec tLOWEST { $$ = new_command_qcall(p, idCOLON2, $1, $3, $4, Qnull, &@3, &@$); /*% ripper: command_call!($:1, $:2, $:3, $:4) %*/ } | primary_value tCOLON2 operation2 command_args cmd_brace_block { $$ = new_command_qcall(p, idCOLON2, $1, $3, $4, $5, &@3, &@$); /*% ripper: method_add_block!(command_call!($:1, $:2, $:3, $:4), $:5) %*/ } | primary_value tCOLON2 tCONSTANT '{' brace_body '}' { set_embraced_location($5, &@4, &@6); $$ = new_command_qcall(p, idCOLON2, $1, $3, Qnull, $5, &@3, &@$); /*% ripper: method_add_block!(command_call!($:1, $:2, $:3, Qundef), $:5) %*/ } | keyword_super command_args { $$ = NEW_SUPER($2, &@$); fixpos($$, $2); /*% ripper: super!($:2) %*/ } | k_yield command_args { $$ = new_yield(p, $2, &@$); fixpos($$, $2); /*% ripper: yield!($:2) %*/ } | k_return call_args { $$ = NEW_RETURN(ret_args(p, $2), &@$); /*% ripper: return!($:2) %*/ } | keyword_break call_args { NODE *args = 0; args = ret_args(p, $2); $$ = add_block_exit(p, NEW_BREAK(args, &@$)); /*% ripper: break!($:2) %*/ } | keyword_next call_args { NODE *args = 0; args = ret_args(p, $2); $$ = add_block_exit(p, NEW_NEXT(args, &@$)); /*% ripper: next!($:2) %*/ } ; mlhs : mlhs_basic | tLPAREN mlhs_inner rparen { $$ = $2; /*% ripper: mlhs_paren!($:2) %*/ } ; mlhs_inner : mlhs_basic | tLPAREN mlhs_inner rparen { $$ = NEW_MASGN(NEW_LIST((NODE *)$2, &@$), 0, &@$); /*% ripper: mlhs_paren!($:2) %*/ } ; mlhs_basic : mlhs_head { $$ = NEW_MASGN($1, 0, &@$); /*% ripper: get_value($:1) %*/ } | mlhs_head mlhs_item { $$ = NEW_MASGN(list_append(p, $1, $2), 0, &@$); /*% ripper: mlhs_add!($:1, $:2) %*/ } | mlhs_head tSTAR mlhs_node { $$ = NEW_MASGN($1, $3, &@$); /*% ripper: mlhs_add_star!($:1, $:3) %*/ } | mlhs_head tSTAR mlhs_node ',' mlhs_post { $$ = NEW_MASGN($1, NEW_POSTARG($3,$5,&@$), &@$); /*% ripper: mlhs_add_post!(mlhs_add_star!($:1, $:3), $:5) %*/ } | mlhs_head tSTAR { $$ = NEW_MASGN($1, NODE_SPECIAL_NO_NAME_REST, &@$); /*% ripper: mlhs_add_star!($:1, Qnil) %*/ } | mlhs_head tSTAR ',' mlhs_post { $$ = NEW_MASGN($1, NEW_POSTARG(NODE_SPECIAL_NO_NAME_REST, $4, &@$), &@$); /*% ripper: mlhs_add_post!(mlhs_add_star!($:1, Qnil), $:4) %*/ } | tSTAR mlhs_node { $$ = NEW_MASGN(0, $2, &@$); /*% ripper: mlhs_add_star!(mlhs_new!, $:2) %*/ } | tSTAR mlhs_node ',' mlhs_post { $$ = NEW_MASGN(0, NEW_POSTARG($2,$4,&@$), &@$); /*% ripper: mlhs_add_post!(mlhs_add_star!(mlhs_new!, $:2), $:4) %*/ } | tSTAR { $$ = NEW_MASGN(0, NODE_SPECIAL_NO_NAME_REST, &@$); /*% ripper: mlhs_add_star!(mlhs_new!, Qnil) %*/ } | tSTAR ',' mlhs_post { $$ = NEW_MASGN(0, NEW_POSTARG(NODE_SPECIAL_NO_NAME_REST, $3, &@$), &@$); /*% ripper: mlhs_add_post!(mlhs_add_star!(mlhs_new!, Qnil), $:3) %*/ } ; mlhs_item : mlhs_node | tLPAREN mlhs_inner rparen { $$ = (NODE *)$2; /*% ripper: mlhs_paren!($:2) %*/ } ; mlhs_head : mlhs_item ',' { $$ = NEW_LIST($1, &@1); /*% ripper: mlhs_add!(mlhs_new!, $:1) %*/ } | mlhs_head mlhs_item ',' { $$ = list_append(p, $1, $2); /*% ripper: mlhs_add!($:1, $:2) %*/ } ; mlhs_post : mlhs_item { $$ = NEW_LIST($1, &@$); /*% ripper: mlhs_add!(mlhs_new!, $:1) %*/ } | mlhs_post ',' mlhs_item { $$ = list_append(p, $1, $3); /*% ripper: mlhs_add!($:1, $:3) %*/ } ; mlhs_node : user_variable { $$ = assignable(p, $1, 0, &@$); /*% ripper: ripper_assignable(p, $1, var_field(p, get_value($:1))) %*/ } | keyword_variable { $$ = assignable(p, $1, 0, &@$); /*% ripper: ripper_assignable(p, $1, var_field(p, get_value($:1))) %*/ } | primary_value '[' opt_call_args rbracket { $$ = aryset(p, $1, $3, &@$); /*% ripper: aref_field!($:1, $:3) %*/ } | primary_value call_op tIDENTIFIER { anddot_multiple_assignment_check(p, &@2, $2); $$ = attrset(p, $1, $2, $3, &@$); /*% ripper: field!($:1, $:2, $:3) %*/ } | primary_value tCOLON2 tIDENTIFIER { $$ = attrset(p, $1, idCOLON2, $3, &@$); /*% ripper: const_path_field!($:1, $:3) %*/ } | primary_value call_op tCONSTANT { anddot_multiple_assignment_check(p, &@2, $2); $$ = attrset(p, $1, $2, $3, &@$); /*% ripper: field!($:1, $:2, $:3) %*/ } | primary_value tCOLON2 tCONSTANT { $$ = const_decl(p, NEW_COLON2($1, $3, &@$), &@$); /*% ripper: ripper_const_decl(p, const_path_field!($:1, $:3)) %*/ } | tCOLON3 tCONSTANT { $$ = const_decl(p, NEW_COLON3($2, &@$), &@$); /*% ripper: ripper_const_decl(p, top_const_field!($:2)) %*/ } | backref { /*%%%*/ rb_backref_error(p, $1); /*% %*/ $$ = NEW_ERROR(&@$); /*% ripper[error]: backref_error(p, $1, var_field(p, get_value($:1))) %*/ } ; lhs : user_variable { $$ = assignable(p, $1, 0, &@$); /*% ripper: ripper_assignable(p, $1, var_field(p, get_value($:1))) %*/ } | keyword_variable { $$ = assignable(p, $1, 0, &@$); /*% ripper: ripper_assignable(p, $1, var_field(p, get_value($:1))) %*/ } | primary_value '[' opt_call_args rbracket { $$ = aryset(p, $1, $3, &@$); /*% ripper: aref_field!($:1, $:3) %*/ } | primary_value call_op tIDENTIFIER { $$ = attrset(p, $1, $2, $3, &@$); /*% ripper: field!($:1, $:2, $:3) %*/ } | primary_value tCOLON2 tIDENTIFIER { $$ = attrset(p, $1, idCOLON2, $3, &@$); /*% ripper: field!($:1, $:2, $:3) %*/ } | primary_value call_op tCONSTANT { $$ = attrset(p, $1, $2, $3, &@$); /*% ripper: field!($:1, $:2, $:3) %*/ } | primary_value tCOLON2 tCONSTANT { $$ = const_decl(p, NEW_COLON2($1, $3, &@$), &@$); /*% ripper: ripper_const_decl(p, const_path_field!($:1, $:3)) %*/ } | tCOLON3 tCONSTANT { $$ = const_decl(p, NEW_COLON3($2, &@$), &@$); /*% ripper: ripper_const_decl(p, top_const_field!($:2)) %*/ } | backref { /*%%%*/ rb_backref_error(p, $1); /*% %*/ $$ = NEW_ERROR(&@$); /*% ripper[error]: backref_error(p, $1, var_field(p, get_value($:1))) %*/ } ; cname : tIDENTIFIER { static const char mesg[] = "class/module name must be CONSTANT"; /*%%%*/ yyerror1(&@1, mesg); /*% %*/ /*% ripper[error]: class_name_error!(ERR_MESG(), $:1) %*/ } | tCONSTANT ; cpath : tCOLON3 cname { $$ = NEW_COLON3($2, &@$); /*% ripper: top_const_ref!($:2) %*/ } | cname { $$ = NEW_COLON2(0, $1, &@$); /*% ripper: const_ref!($:1) %*/ } | primary_value tCOLON2 cname { $$ = NEW_COLON2($1, $3, &@$); /*% ripper: const_path_ref!($:1, $:3) %*/ } ; fname : tIDENTIFIER | tCONSTANT | tFID | op { SET_LEX_STATE(EXPR_ENDFN); $$ = $1; } | reswords ; fitem : fname { $$ = NEW_SYM(rb_id2str($1), &@$); /*% ripper: symbol_literal!($:1) %*/ } | symbol ; undef_list : fitem { $$ = NEW_UNDEF($1, &@$); /*% ripper: rb_ary_new3(1, get_value($:1)) %*/ } | undef_list ',' {SET_LEX_STATE(EXPR_FNAME|EXPR_FITEM);} fitem { NODE *undef = NEW_UNDEF($4, &@4); $$ = block_append(p, $1, undef); /*% ripper: rb_ary_push(get_value($:1), get_value($:4)) %*/ } ; op : '|' { $$ = '|'; } | '^' { $$ = '^'; } | '&' { $$ = '&'; } | tCMP { $$ = tCMP; } | tEQ { $$ = tEQ; } | tEQQ { $$ = tEQQ; } | tMATCH { $$ = tMATCH; } | tNMATCH { $$ = tNMATCH; } | '>' { $$ = '>'; } | tGEQ { $$ = tGEQ; } | '<' { $$ = '<'; } | tLEQ { $$ = tLEQ; } | tNEQ { $$ = tNEQ; } | tLSHFT { $$ = tLSHFT; } | tRSHFT { $$ = tRSHFT; } | '+' { $$ = '+'; } | '-' { $$ = '-'; } | '*' { $$ = '*'; } | tSTAR { $$ = '*'; } | '/' { $$ = '/'; } | '%' { $$ = '%'; } | tPOW { $$ = tPOW; } | tDSTAR { $$ = tDSTAR; } | '!' { $$ = '!'; } | '~' { $$ = '~'; } | tUPLUS { $$ = tUPLUS; } | tUMINUS { $$ = tUMINUS; } | tAREF { $$ = tAREF; } | tASET { $$ = tASET; } | '`' { $$ = '`'; } ; reswords : keyword__LINE__ | keyword__FILE__ | keyword__ENCODING__ | keyword_BEGIN | keyword_END | keyword_alias | keyword_and | keyword_begin | keyword_break | keyword_case | keyword_class | keyword_def | keyword_defined | keyword_do | keyword_else | keyword_elsif | keyword_end | keyword_ensure | keyword_false | keyword_for | keyword_in | keyword_module | keyword_next | keyword_nil | keyword_not | keyword_or | keyword_redo | keyword_rescue | keyword_retry | keyword_return | keyword_self | keyword_super | keyword_then | keyword_true | keyword_undef | keyword_when | keyword_yield | keyword_if | keyword_unless | keyword_while | keyword_until ; arg : lhs '=' lex_ctxt arg_rhs { $$ = node_assign(p, $1, $4, $3, &@$); /*% ripper: assign!($:1, $:4) %*/ } | var_lhs tOP_ASGN lex_ctxt arg_rhs { $$ = new_op_assign(p, $1, $2, $4, $3, &@$); /*% ripper: opassign!($:1, $:2, $:4) %*/ } | primary_value '[' opt_call_args rbracket tOP_ASGN lex_ctxt arg_rhs { $$ = new_ary_op_assign(p, $1, $3, $5, $7, &@3, &@$); /*% ripper: opassign!(aref_field!($:1, $:3), $:5, $:7) %*/ } | primary_value call_op tIDENTIFIER tOP_ASGN lex_ctxt arg_rhs { $$ = new_attr_op_assign(p, $1, $2, $3, $4, $6, &@$); /*% ripper: opassign!(field!($:1, $:2, $:3), $:4, $:6) %*/ } | primary_value call_op tCONSTANT tOP_ASGN lex_ctxt arg_rhs { $$ = new_attr_op_assign(p, $1, $2, $3, $4, $6, &@$); /*% ripper: opassign!(field!($:1, $:2, $:3), $:4, $:6) %*/ } | primary_value tCOLON2 tIDENTIFIER tOP_ASGN lex_ctxt arg_rhs { $$ = new_attr_op_assign(p, $1, idCOLON2, $3, $4, $6, &@$); /*% ripper: opassign!(field!($:1, $:2, $:3), $:4, $:6) %*/ } | primary_value tCOLON2 tCONSTANT tOP_ASGN lex_ctxt arg_rhs { YYLTYPE loc = code_loc_gen(&@1, &@3); $$ = new_const_op_assign(p, NEW_COLON2($1, $3, &loc), $4, $6, $5, &@$); /*% ripper: opassign!(const_path_field!($:1, $:3), $:4, $:6) %*/ } | tCOLON3 tCONSTANT tOP_ASGN lex_ctxt arg_rhs { YYLTYPE loc = code_loc_gen(&@1, &@2); $$ = new_const_op_assign(p, NEW_COLON3($2, &loc), $3, $5, $4, &@$); /*% ripper: opassign!(top_const_field!($:2), $:3, $:5) %*/ } | backref tOP_ASGN lex_ctxt arg_rhs { rb_backref_error(p, $1); /*%%%*/ $$ = NEW_ERROR(&@$); /*% %*/ /*% ripper[error]: backref_error(p, RNODE($:1), opassign!(var_field(p, get_value($:1)), $:2, $:4)) %*/ } | arg tDOT2 arg { value_expr($1); value_expr($3); $$ = NEW_DOT2($1, $3, &@$); /*% ripper: dot2!($:1, $:3) %*/ } | arg tDOT3 arg { value_expr($1); value_expr($3); $$ = NEW_DOT3($1, $3, &@$); /*% ripper: dot3!($:1, $:3) %*/ } | arg tDOT2 { value_expr($1); $$ = NEW_DOT2($1, new_nil_at(p, &@2.end_pos), &@$); /*% ripper: dot2!($:1, Qnil) %*/ } | arg tDOT3 { value_expr($1); $$ = NEW_DOT3($1, new_nil_at(p, &@2.end_pos), &@$); /*% ripper: dot3!($:1, Qnil) %*/ } | tBDOT2 arg { value_expr($2); $$ = NEW_DOT2(new_nil_at(p, &@1.beg_pos), $2, &@$); /*% ripper: dot2!(Qnil, $:2) %*/ } | tBDOT3 arg { value_expr($2); $$ = NEW_DOT3(new_nil_at(p, &@1.beg_pos), $2, &@$); /*% ripper: dot3!(Qnil, $:2) %*/ } | arg '+' arg { $$ = call_bin_op(p, $1, '+', $3, &@2, &@$); /*% ripper: binary!($:1, ID2VAL('\'+\''), $:3) %*/ } | arg '-' arg { $$ = call_bin_op(p, $1, '-', $3, &@2, &@$); /*% ripper: binary!($:1, ID2VAL('\'-\''), $:3) %*/ } | arg '*' arg { $$ = call_bin_op(p, $1, '*', $3, &@2, &@$); /*% ripper: binary!($:1, ID2VAL('\'*\''), $:3) %*/ } | arg '/' arg { $$ = call_bin_op(p, $1, '/', $3, &@2, &@$); /*% ripper: binary!($:1, ID2VAL('\'/\''), $:3) %*/ } | arg '%' arg { $$ = call_bin_op(p, $1, '%', $3, &@2, &@$); /*% ripper: binary!($:1, ID2VAL('\'%\''), $:3) %*/ } | arg tPOW arg { $$ = call_bin_op(p, $1, idPow, $3, &@2, &@$); /*% ripper: binary!($:1, ID2VAL(idPow), $:3) %*/ } | tUMINUS_NUM simple_numeric tPOW arg { $$ = call_uni_op(p, call_bin_op(p, $2, idPow, $4, &@2, &@$), idUMinus, &@1, &@$); /*%%%*/ /*% VALUE val = dispatch3(binary, get_value($:2), ID2VAL(idPow), get_value($:4)); val = dispatch2(unary, ID2VAL(idUMinus), val); set_value(val); %*/ } | tUPLUS arg { $$ = call_uni_op(p, $2, idUPlus, &@1, &@$); /*% ripper: unary!(ID2VAL(idUPlus), $:2) %*/ } | tUMINUS arg { $$ = call_uni_op(p, $2, idUMinus, &@1, &@$); /*% ripper: unary!(ID2VAL(idUMinus), $:2) %*/ } | arg '|' arg { $$ = call_bin_op(p, $1, '|', $3, &@2, &@$); /*% ripper: binary!($:1, ID2VAL('\'|\''), $:3) %*/ } | arg '^' arg { $$ = call_bin_op(p, $1, '^', $3, &@2, &@$); /*% ripper: binary!($:1, ID2VAL('\'^\''), $:3) %*/ } | arg '&' arg { $$ = call_bin_op(p, $1, '&', $3, &@2, &@$); /*% ripper: binary!($:1, ID2VAL('\'&\''), $:3) %*/ } | arg tCMP arg { $$ = call_bin_op(p, $1, idCmp, $3, &@2, &@$); /*% ripper: binary!($:1, ID2VAL(idCmp), $:3) %*/ } | rel_expr %prec tCMP | arg tEQ arg { $$ = call_bin_op(p, $1, idEq, $3, &@2, &@$); /*% ripper: binary!($:1, ID2VAL(idEq), $:3) %*/ } | arg tEQQ arg { $$ = call_bin_op(p, $1, idEqq, $3, &@2, &@$); /*% ripper: binary!($:1, ID2VAL(idEqq), $:3) %*/ } | arg tNEQ arg { $$ = call_bin_op(p, $1, idNeq, $3, &@2, &@$); /*% ripper: binary!($:1, ID2VAL(idNeq), $:3) %*/ } | arg tMATCH arg { $$ = match_op(p, $1, $3, &@2, &@$); /*% ripper: binary!($:1, ID2VAL(idEqTilde), $:3) %*/ } | arg tNMATCH arg { $$ = call_bin_op(p, $1, idNeqTilde, $3, &@2, &@$); /*% ripper: binary!($:1, ID2VAL(idNeqTilde), $:3) %*/ } | '!' arg { $$ = call_uni_op(p, method_cond(p, $2, &@2), '!', &@1, &@$); /*% ripper: unary!(ID2VAL('\'!\''), $:2) %*/ } | '~' arg { $$ = call_uni_op(p, $2, '~', &@1, &@$); /*% ripper: unary!(ID2VAL('\'~\''), $:2) %*/ } | arg tLSHFT arg { $$ = call_bin_op(p, $1, idLTLT, $3, &@2, &@$); /*% ripper: binary!($:1, ID2VAL(idLTLT), $:3) %*/ } | arg tRSHFT arg { $$ = call_bin_op(p, $1, idGTGT, $3, &@2, &@$); /*% ripper: binary!($:1, ID2VAL(idGTGT), $:3) %*/ } | arg tANDOP arg { $$ = logop(p, idANDOP, $1, $3, &@2, &@$); /*% ripper: binary!($:1, ID2VAL(idANDOP), $:3) %*/ } | arg tOROP arg { $$ = logop(p, idOROP, $1, $3, &@2, &@$); /*% ripper: binary!($:1, ID2VAL(idOROP), $:3) %*/ } | keyword_defined opt_nl begin_defined arg { p->ctxt.in_defined = $3.in_defined; $$ = new_defined(p, $4, &@$); /*% ripper: defined!($:4) %*/ } | arg '?' arg opt_nl ':' arg { value_expr($1); $$ = new_if(p, $1, $3, $6, &@$); fixpos($$, $1); /*% ripper: ifop!($:1, $:3, $:6) %*/ } | defn_head[head] f_opt_paren_args[args] '=' endless_arg[bodystmt] { endless_method_name(p, $head->nd_mid, &@head); restore_defun(p, $head); $bodystmt = new_scope_body(p, $args, $bodystmt, &@$); ($$ = $head->nd_def)->nd_loc = @$; RNODE_DEFN($$)->nd_defn = $bodystmt; /*%%%*/ /*% VALUE val = dispatch4(bodystmt, get_value($:bodystmt), Qnil, Qnil, Qnil); val = dispatch3(def, get_value($:head), get_value($:args), val); set_value(val); %*/ local_pop(p); } | defs_head[head] f_opt_paren_args[args] '=' endless_arg[bodystmt] { endless_method_name(p, $head->nd_mid, &@head); restore_defun(p, $head); $bodystmt = new_scope_body(p, $args, $bodystmt, &@$); ($$ = $head->nd_def)->nd_loc = @$; RNODE_DEFS($$)->nd_defn = $bodystmt; /*%%%*/ /*% VALUE val = dispatch4(bodystmt, get_value($:bodystmt), Qnil, Qnil, Qnil); val = defs(p, get_value($:head), get_value($:args), val); set_value(val); %*/ local_pop(p); } | primary { $$ = $1; } ; endless_arg : arg %prec modifier_rescue | endless_arg modifier_rescue after_rescue arg { p->ctxt.in_rescue = $3.in_rescue; $$ = rescued_expr(p, $1, $4, &@1, &@2, &@4); /*% ripper: rescue_mod!($:1, $:4) %*/ } | keyword_not opt_nl endless_arg { $$ = call_uni_op(p, method_cond(p, $3, &@3), METHOD_NOT, &@1, &@$); /*% ripper: unary!(ID2VAL(idNOT), $:3) %*/ } ; relop : '>' {$$ = '>';} | '<' {$$ = '<';} | tGEQ {$$ = idGE;} | tLEQ {$$ = idLE;} ; rel_expr : arg relop arg %prec '>' { $$ = call_bin_op(p, $1, $2, $3, &@2, &@$); /*% ripper: binary!($:1, ID2VAL($2), $:3) %*/ } | rel_expr relop arg %prec '>' { rb_warning1("comparison '%s' after comparison", WARN_ID($2)); $$ = call_bin_op(p, $1, $2, $3, &@2, &@$); /*% ripper: binary!($:1, ID2VAL($2), $:3) %*/ } ; lex_ctxt : none { $$ = p->ctxt; } ; begin_defined : lex_ctxt { p->ctxt.in_defined = 1; $$ = $1; } ; after_rescue : lex_ctxt { p->ctxt.in_rescue = after_rescue; $$ = $1; } ; arg_value : arg { value_expr($1); $$ = $1; } ; aref_args : none | args trailer { $$ = $1; } | args ',' assocs trailer { $$ = $3 ? arg_append(p, $1, new_hash(p, $3, &@3), &@$) : $1; /*% ripper: args_add!($:1, bare_assoc_hash!($:3)) %*/ } | assocs trailer { $$ = $1 ? NEW_LIST(new_hash(p, $1, &@1), &@$) : 0; /*% ripper: args_add!(args_new!, bare_assoc_hash!($:1)) %*/ } ; arg_rhs : arg %prec tOP_ASGN { value_expr($1); $$ = $1; } | arg modifier_rescue after_rescue arg { p->ctxt.in_rescue = $3.in_rescue; value_expr($1); $$ = rescued_expr(p, $1, $4, &@1, &@2, &@4); /*% ripper: rescue_mod!($:1, $:4) %*/ } ; paren_args : '(' opt_call_args rparen { $$ = $2; /*% ripper: arg_paren!($:2) %*/ } | '(' args ',' args_forward rparen { if (!check_forwarding_args(p)) { $$ = Qnone; } else { $$ = new_args_forward_call(p, $2, &@4, &@$); /*% ripper: arg_paren!(args_add!($:2, $:4)) %*/ } } | '(' args_forward rparen { if (!check_forwarding_args(p)) { $$ = Qnone; } else { $$ = new_args_forward_call(p, 0, &@2, &@$); /*% ripper: arg_paren!($:2) %*/ } } ; opt_paren_args : none | paren_args ; opt_call_args : none | call_args | args ',' { $$ = $1; } | args ',' assocs ',' { $$ = $3 ? arg_append(p, $1, new_hash(p, $3, &@3), &@$) : $1; /*% ripper: args_add!($:1, bare_assoc_hash!($:3)) %*/ } | assocs ',' { $$ = $1 ? NEW_LIST(new_hash(p, $1, &@1), &@1) : 0; /*% ripper: args_add!(args_new!, bare_assoc_hash!($:1)) %*/ } ; call_args : command { value_expr($1); $$ = NEW_LIST($1, &@$); /*% ripper: args_add!(args_new!, $:1) %*/ } | args opt_block_arg { $$ = arg_blk_pass($1, $2); /*% ripper: args_add_block!($:1, $:2) %*/ } | assocs opt_block_arg { $$ = $1 ? NEW_LIST(new_hash(p, $1, &@1), &@1) : 0; $$ = arg_blk_pass($$, $2); /*% ripper: args_add_block!(args_add!(args_new!, bare_assoc_hash!($:1)), $:2) %*/ } | args ',' assocs opt_block_arg { $$ = $3 ? arg_append(p, $1, new_hash(p, $3, &@3), &@$) : $1; $$ = arg_blk_pass($$, $4); /*% ripper: args_add_block!(args_add!($:1, bare_assoc_hash!($:3)), $:4) %*/ } | block_arg /*% ripper: args_add_block!(args_new!, $:1) %*/ ; command_args : { /* If call_args starts with a open paren '(' or '[', * look-ahead reading of the letters calls CMDARG_PUSH(0), * but the push must be done after CMDARG_PUSH(1). * So this code makes them consistent by first cancelling * the premature CMDARG_PUSH(0), doing CMDARG_PUSH(1), * and finally redoing CMDARG_PUSH(0). */ int lookahead = 0; switch (yychar) { case '(': case tLPAREN: case tLPAREN_ARG: case '[': case tLBRACK: lookahead = 1; } if (lookahead) CMDARG_POP(); CMDARG_PUSH(1); if (lookahead) CMDARG_PUSH(0); } call_args { /* call_args can be followed by tLBRACE_ARG (that does CMDARG_PUSH(0) in the lexer) * but the push must be done after CMDARG_POP() in the parser. * So this code does CMDARG_POP() to pop 0 pushed by tLBRACE_ARG, * CMDARG_POP() to pop 1 pushed by command_args, * and CMDARG_PUSH(0) to restore back the flag set by tLBRACE_ARG. */ int lookahead = 0; switch (yychar) { case tLBRACE_ARG: lookahead = 1; } if (lookahead) CMDARG_POP(); CMDARG_POP(); if (lookahead) CMDARG_PUSH(0); $$ = $2; /*% ripper: get_value($:2); %*/ } ; block_arg : tAMPER arg_value { $$ = NEW_BLOCK_PASS($2, &@$); /*% ripper: get_value($:2) %*/ } | tAMPER { forwarding_arg_check(p, idFWD_BLOCK, 0, "block"); $$ = NEW_BLOCK_PASS(NEW_LVAR(idFWD_BLOCK, &@1), &@$); /*% ripper: Qnil %*/ } ; opt_block_arg : ',' block_arg { $$ = $2; /*% ripper: get_value($:2); %*/ } | none { $$ = 0; /*% ripper: Qfalse %*/ } ; /* value */ args : arg_value { $$ = NEW_LIST($1, &@$); /*% ripper: args_add!(args_new!, $:1) %*/ } | arg_splat { $$ = NEW_SPLAT($arg_splat, &@$); /*% ripper: args_add_star!(args_new!, $:arg_splat) %*/ } | args ',' arg_value { $$ = last_arg_append(p, $1, $3, &@$); /*% ripper: args_add!($:1, $:3) %*/ } | args ',' arg_splat { $$ = rest_arg_append(p, $1, $3, &@$); /*% ripper: args_add_star!($:1, $:3) %*/ } ; /* value */ arg_splat : tSTAR arg_value { $$ = $2; /*% ripper: get_value($:2); %*/ } | tSTAR /* none */ { forwarding_arg_check(p, idFWD_REST, idFWD_ALL, "rest"); $$ = NEW_LVAR(idFWD_REST, &@1); /*% ripper: Qnil %*/ } ; /* value */ mrhs_arg : mrhs | arg_value ; /* value */ mrhs : args ',' arg_value { $$ = last_arg_append(p, $1, $3, &@$); /*% ripper: mrhs_add!(mrhs_new_from_args!($:1), $:3) %*/ } | args ',' tSTAR arg_value { $$ = rest_arg_append(p, $1, $4, &@$); /*% ripper: mrhs_add_star!(mrhs_new_from_args!($:1), $:4) %*/ } | tSTAR arg_value { $$ = NEW_SPLAT($2, &@$); /*% ripper: mrhs_add_star!(mrhs_new!, $:2) %*/ } ; primary : literal | strings | xstring | regexp | words | qwords | symbols | qsymbols | var_ref | backref | tFID { $$ = (NODE *)NEW_FCALL($1, 0, &@$); /*% ripper: method_add_arg!(fcall!($:1), args_new!) %*/ } | k_begin { CMDARG_PUSH(0); } bodystmt k_end { CMDARG_POP(); set_line_body($3, @1.end_pos.lineno); $$ = NEW_BEGIN($3, &@$); nd_set_line($$, @1.end_pos.lineno); /*% ripper: begin!($:3) %*/ } | tLPAREN_ARG compstmt {SET_LEX_STATE(EXPR_ENDARG);} ')' { if (nd_type_p($2, NODE_SELF)) RNODE_SELF($2)->nd_state = 0; $$ = $2; /*% ripper: paren!($:2) %*/ } | tLPAREN compstmt ')' { if (nd_type_p($2, NODE_SELF)) RNODE_SELF($2)->nd_state = 0; $$ = NEW_BLOCK($2, &@$); /*% ripper: paren!($:2) %*/ } | primary_value tCOLON2 tCONSTANT { $$ = NEW_COLON2($1, $3, &@$); /*% ripper: const_path_ref!($:1, $:3) %*/ } | tCOLON3 tCONSTANT { $$ = NEW_COLON3($2, &@$); /*% ripper: top_const_ref!($:2) %*/ } | tLBRACK aref_args ']' { $$ = make_list($2, &@$); /*% ripper: array!($:2) %*/ } | tLBRACE assoc_list '}' { $$ = new_hash(p, $2, &@$); RNODE_HASH($$)->nd_brace = TRUE; /*% ripper: hash!($:2) %*/ } | k_return { $$ = NEW_RETURN(0, &@$); /*% ripper: return0! %*/ } | k_yield '(' call_args rparen { $$ = new_yield(p, $3, &@$); /*% ripper: yield!(paren!($:3)) %*/ } | k_yield '(' rparen { $$ = NEW_YIELD(0, &@$); /*% ripper: yield!(paren!(args_new!)) %*/ } | k_yield { $$ = NEW_YIELD(0, &@$); /*% ripper: yield0! %*/ } | keyword_defined opt_nl '(' begin_defined expr rparen { p->ctxt.in_defined = $4.in_defined; $$ = new_defined(p, $5, &@$); /*% ripper: defined!($:5) %*/ } | keyword_not '(' expr rparen { $$ = call_uni_op(p, method_cond(p, $3, &@3), METHOD_NOT, &@1, &@$); /*% ripper: unary!(ID2VAL(idNOT), $:3) %*/ } | keyword_not '(' rparen { $$ = call_uni_op(p, method_cond(p, new_nil(&@2), &@2), METHOD_NOT, &@1, &@$); /*% ripper: unary!(ID2VAL(idNOT), Qnil) %*/ } | fcall brace_block { $$ = method_add_block(p, (NODE *)$1, $2, &@$); /*% ripper: method_add_block!(method_add_arg!(fcall!($:1), args_new!), $:2) %*/ } | method_call | method_call brace_block { block_dup_check(p, get_nd_args(p, $1), $2); $$ = method_add_block(p, $1, $2, &@$); /*% ripper: method_add_block!($:1, $:2) %*/ } | lambda | k_if expr_value then compstmt if_tail k_end { $$ = new_if(p, $2, $4, $5, &@$); fixpos($$, $2); /*% ripper: if!($:2, $:4, $:5) %*/ } | k_unless expr_value then compstmt opt_else k_end { $$ = new_unless(p, $2, $4, $5, &@$); fixpos($$, $2); /*% ripper: unless!($:2, $:4, $:5) %*/ } | k_while expr_value_do compstmt k_end { restore_block_exit(p, $1); $$ = NEW_WHILE(cond(p, $2, &@2), $3, 1, &@$); fixpos($$, $2); /*% ripper: while!($:2, $:3) %*/ } | k_until expr_value_do compstmt k_end { restore_block_exit(p, $1); $$ = NEW_UNTIL(cond(p, $2, &@2), $3, 1, &@$); fixpos($$, $2); /*% ripper: until!($:2, $:3) %*/ } | k_case expr_value opt_terms { $$ = p->case_labels; p->case_labels = Qnil; } case_body k_end { if (RTEST(p->case_labels)) rb_hash_clear(p->case_labels); p->case_labels = $4; $$ = NEW_CASE($2, $5, &@$); fixpos($$, $2); /*% ripper: case!($:2, $:5) %*/ } | k_case opt_terms { $$ = p->case_labels; p->case_labels = 0; } case_body k_end { if (RTEST(p->case_labels)) rb_hash_clear(p->case_labels); p->case_labels = $3; $$ = NEW_CASE2($4, &@$); /*% ripper: case!(Qnil, $:4) %*/ } | k_case expr_value opt_terms p_case_body k_end { $$ = NEW_CASE3($2, $4, &@$); /*% ripper: case!($:2, $:4) %*/ } | k_for for_var keyword_in expr_value_do compstmt k_end { restore_block_exit(p, $1); /* * for a, b, c in e * #=> * e.each{|*x| a, b, c = x} * * for a in e * #=> * e.each{|x| a, = x} */ ID id = internal_id(p); rb_node_args_aux_t *m = NEW_ARGS_AUX(0, 0, &NULL_LOC); rb_node_args_t *args; NODE *scope, *internal_var = NEW_DVAR(id, &@2); rb_ast_id_table_t *tbl = rb_ast_new_local_table(p->ast, 1); tbl->ids[0] = id; /* internal id */ switch (nd_type($2)) { case NODE_LASGN: case NODE_DASGN: /* e.each {|internal_var| a = internal_var; ... } */ set_nd_value(p, $2, internal_var); id = 0; m->nd_plen = 1; m->nd_next = $2; break; case NODE_MASGN: /* e.each {|*internal_var| a, b, c = (internal_var.length == 1 && Array === (tmp = internal_var[0]) ? tmp : internal_var); ... } */ m->nd_next = node_assign(p, $2, NEW_FOR_MASGN(internal_var, &@2), NO_LEX_CTXT, &@2); break; default: /* e.each {|*internal_var| @a, B, c[1], d.attr = internal_val; ... } */ m->nd_next = node_assign(p, (NODE *)NEW_MASGN(NEW_LIST($2, &@2), 0, &@2), internal_var, NO_LEX_CTXT, &@2); } /* {|*internal_id| = internal_id; ... } */ args = new_args(p, m, 0, id, 0, new_args_tail(p, 0, 0, 0, &@2), &@2); scope = NEW_SCOPE2(tbl, args, $5, &@$); $$ = NEW_FOR($4, scope, &@$); fixpos($$, $2); /*% ripper: for!($:2, $:4, $:5) %*/ } | k_class cpath superclass { begin_definition("class", &@k_class, &@cpath); } bodystmt k_end { $$ = NEW_CLASS($cpath, $bodystmt, $superclass, &@$); nd_set_line(RNODE_CLASS($$)->nd_body, @k_end.end_pos.lineno); set_line_body($bodystmt, @superclass.end_pos.lineno); nd_set_line($$, @superclass.end_pos.lineno); /*% ripper: class!($:cpath, $:superclass, $:bodystmt) %*/ local_pop(p); p->ctxt.in_class = $k_class.in_class; p->ctxt.shareable_constant_value = $k_class.shareable_constant_value; } | k_class tLSHFT expr_value { begin_definition("", &@k_class, &@tLSHFT); } term bodystmt k_end { $$ = NEW_SCLASS($expr_value, $bodystmt, &@$); nd_set_line(RNODE_SCLASS($$)->nd_body, @k_end.end_pos.lineno); set_line_body($bodystmt, nd_line($expr_value)); fixpos($$, $expr_value); /*% ripper: sclass!($:expr_value, $:bodystmt) %*/ local_pop(p); p->ctxt.in_def = $k_class.in_def; p->ctxt.in_class = $k_class.in_class; p->ctxt.shareable_constant_value = $k_class.shareable_constant_value; } | k_module cpath { begin_definition("module", &@k_module, &@cpath); } bodystmt k_end { $$ = NEW_MODULE($cpath, $bodystmt, &@$); nd_set_line(RNODE_MODULE($$)->nd_body, @k_end.end_pos.lineno); set_line_body($bodystmt, @cpath.end_pos.lineno); nd_set_line($$, @cpath.end_pos.lineno); /*% ripper: module!($:cpath, $:bodystmt) %*/ local_pop(p); p->ctxt.in_class = $k_module.in_class; p->ctxt.shareable_constant_value = $k_module.shareable_constant_value; } | defn_head[head] f_arglist[args] { push_end_expect_token_locations(p, &@head.beg_pos); } bodystmt k_end { restore_defun(p, $head); $bodystmt = new_scope_body(p, $args, $bodystmt, &@$); ($$ = $head->nd_def)->nd_loc = @$; RNODE_DEFN($$)->nd_defn = $bodystmt; /*% ripper: def!($:head, $:args, $:bodystmt) %*/ local_pop(p); } | defs_head[head] f_arglist[args] { push_end_expect_token_locations(p, &@head.beg_pos); } bodystmt k_end { restore_defun(p, $head); $bodystmt = new_scope_body(p, $args, $bodystmt, &@$); ($$ = $head->nd_def)->nd_loc = @$; RNODE_DEFS($$)->nd_defn = $bodystmt; /*% ripper: defs(p, get_value($:head), get_value($:args), get_value($:bodystmt)) %*/ local_pop(p); } | keyword_break { $$ = add_block_exit(p, NEW_BREAK(0, &@$)); /*% ripper: break!(args_new!) %*/ } | keyword_next { $$ = add_block_exit(p, NEW_NEXT(0, &@$)); /*% ripper: next!(args_new!) %*/ } | keyword_redo { $$ = add_block_exit(p, NEW_REDO(&@$)); /*% ripper: redo! %*/ } | keyword_retry { if (!p->ctxt.in_defined) { switch (p->ctxt.in_rescue) { case before_rescue: yyerror1(&@1, "Invalid retry without rescue"); break; case after_rescue: /* ok */ break; case after_else: yyerror1(&@1, "Invalid retry after else"); break; case after_ensure: yyerror1(&@1, "Invalid retry after ensure"); break; } } $$ = NEW_RETRY(&@$); /*% ripper: retry! %*/ } ; primary_value : primary { value_expr($1); $$ = $1; } ; k_begin : keyword_begin { token_info_push(p, "begin", &@$); push_end_expect_token_locations(p, &@1.beg_pos); } ; k_if : keyword_if { WARN_EOL("if"); token_info_push(p, "if", &@$); if (p->token_info && p->token_info->nonspc && p->token_info->next && !strcmp(p->token_info->next->token, "else")) { const char *tok = p->lex.ptok - rb_strlen_lit("if"); const char *beg = p->lex.pbeg + p->token_info->next->beg.column; beg += rb_strlen_lit("else"); while (beg < tok && ISSPACE(*beg)) beg++; if (beg == tok) { p->token_info->nonspc = 0; } } push_end_expect_token_locations(p, &@1.beg_pos); } ; k_unless : keyword_unless { token_info_push(p, "unless", &@$); push_end_expect_token_locations(p, &@1.beg_pos); } ; k_while : keyword_while allow_exits { $$ = $allow_exits; token_info_push(p, "while", &@$); push_end_expect_token_locations(p, &@1.beg_pos); } ; k_until : keyword_until allow_exits { $$ = $allow_exits; token_info_push(p, "until", &@$); push_end_expect_token_locations(p, &@1.beg_pos); } ; k_case : keyword_case { token_info_push(p, "case", &@$); push_end_expect_token_locations(p, &@1.beg_pos); } ; k_for : keyword_for allow_exits { $$ = $allow_exits; token_info_push(p, "for", &@$); push_end_expect_token_locations(p, &@1.beg_pos); } ; k_class : keyword_class { token_info_push(p, "class", &@$); $$ = p->ctxt; p->ctxt.in_rescue = before_rescue; push_end_expect_token_locations(p, &@1.beg_pos); } ; k_module : keyword_module { token_info_push(p, "module", &@$); $$ = p->ctxt; p->ctxt.in_rescue = before_rescue; push_end_expect_token_locations(p, &@1.beg_pos); } ; k_def : keyword_def { token_info_push(p, "def", &@$); $$ = NEW_DEF_TEMP(&@$); p->ctxt.in_argdef = 1; } ; k_do : keyword_do { token_info_push(p, "do", &@$); push_end_expect_token_locations(p, &@1.beg_pos); } ; k_do_block : keyword_do_block { token_info_push(p, "do", &@$); push_end_expect_token_locations(p, &@1.beg_pos); } ; k_rescue : keyword_rescue { token_info_warn(p, "rescue", p->token_info, 1, &@$); $$ = p->ctxt; p->ctxt.in_rescue = after_rescue; } ; k_ensure : keyword_ensure { token_info_warn(p, "ensure", p->token_info, 1, &@$); $$ = p->ctxt; } ; k_when : keyword_when { token_info_warn(p, "when", p->token_info, 0, &@$); } ; k_else : keyword_else { token_info *ptinfo_beg = p->token_info; int same = ptinfo_beg && strcmp(ptinfo_beg->token, "case") != 0; token_info_warn(p, "else", p->token_info, same, &@$); if (same) { token_info e; e.next = ptinfo_beg->next; e.token = "else"; token_info_setup(&e, p->lex.pbeg, &@$); if (!e.nonspc) *ptinfo_beg = e; } } ; k_elsif : keyword_elsif { WARN_EOL("elsif"); token_info_warn(p, "elsif", p->token_info, 1, &@$); } ; k_end : keyword_end { token_info_pop(p, "end", &@$); pop_end_expect_token_locations(p); } | tDUMNY_END { compile_error(p, "syntax error, unexpected end-of-input"); } ; k_return : keyword_return { if (p->ctxt.in_class && !p->ctxt.in_def && !dyna_in_block(p)) yyerror1(&@1, "Invalid return in class/module body"); } ; k_yield : keyword_yield { if (!p->ctxt.in_defined && !p->ctxt.in_def && !compile_for_eval) yyerror1(&@1, "Invalid yield"); } ; then : term | keyword_then | term keyword_then ; do : term | keyword_do_cond ; if_tail : opt_else | k_elsif expr_value then compstmt if_tail { $$ = new_if(p, $2, $4, $5, &@$); fixpos($$, $2); /*% ripper: elsif!($:2, $:4, $:5) %*/ } ; opt_else : none | k_else compstmt { $$ = $2; /*% ripper: else!($:2) %*/ } ; for_var : lhs | mlhs ; f_marg : f_norm_arg { $$ = assignable(p, $1, 0, &@$); mark_lvar_used(p, $$); /*% ripper: ripper_assignable(p, $1, get_value($:1)) %*/ } | tLPAREN f_margs rparen { $$ = (NODE *)$2; /*% ripper: mlhs_paren!($:2) %*/ } ; f_marg_list : f_marg { $$ = NEW_LIST($1, &@$); /*% ripper: mlhs_add!(mlhs_new!, $:1) %*/ } | f_marg_list ',' f_marg { $$ = list_append(p, $1, $3); /*% ripper: mlhs_add!($:1, $:3) %*/ } ; f_margs : f_marg_list { $$ = NEW_MASGN($1, 0, &@$); /*% ripper: get_value($:1) %*/ } | f_marg_list ',' f_rest_marg { $$ = NEW_MASGN($1, $3, &@$); /*% ripper: mlhs_add_star!($:1, $:3) %*/ } | f_marg_list ',' f_rest_marg ',' f_marg_list { $$ = NEW_MASGN($1, NEW_POSTARG($3, $5, &@$), &@$); /*% ripper: mlhs_add_post!(mlhs_add_star!($:1, $:3), $:5) %*/ } | f_rest_marg { $$ = NEW_MASGN(0, $1, &@$); /*% ripper: mlhs_add_star!(mlhs_new!, $:1) %*/ } | f_rest_marg ',' f_marg_list { $$ = NEW_MASGN(0, NEW_POSTARG($1, $3, &@$), &@$); /*% ripper: mlhs_add_post!(mlhs_add_star!(mlhs_new!, $:1), $:3) %*/ } ; f_rest_marg : tSTAR f_norm_arg { $$ = assignable(p, $2, 0, &@$); mark_lvar_used(p, $$); /*% ripper: ripper_assignable(p, $2, get_value($:2)) %*/ } | tSTAR { $$ = NODE_SPECIAL_NO_NAME_REST; /*% ripper: Qnil %*/ } ; f_any_kwrest : f_kwrest | f_no_kwarg { $$ = idNil; /*% ripper: ID2VAL(idNil) %*/ } ; f_eq : {p->ctxt.in_argdef = 0;} '='; block_args_tail : f_block_kwarg ',' f_kwrest opt_f_block_arg { $$ = new_args_tail(p, $1, $3, $4, &@3); /*% ripper: rb_ary_new_from_args(3, get_value($:1), get_value($:3), get_value($:4)); %*/ } | f_block_kwarg opt_f_block_arg { $$ = new_args_tail(p, $1, Qnone, $2, &@1); /*% ripper: rb_ary_new_from_args(3, get_value($:1), Qnil, get_value($:2)); %*/ } | f_any_kwrest opt_f_block_arg { $$ = new_args_tail(p, Qnone, $1, $2, &@1); /*% ripper: rb_ary_new_from_args(3, Qnil, get_value($:1), get_value($:2)); %*/ } | f_block_arg { $$ = new_args_tail(p, Qnone, Qnone, $1, &@1); /*% ripper: rb_ary_new_from_args(3, Qnil, Qnil, get_value($:1)); %*/ } ; opt_block_args_tail : ',' block_args_tail { $$ = $2; /*% ripper: get_value($:2); %*/ } | /* none */ { $$ = new_args_tail(p, Qnone, Qnone, Qnone, &@0); /*% ripper: rb_ary_new_from_args(3, Qnil, Qnil, Qnil); %*/ } ; excessed_comma : ',' { /* magic number for rest_id in iseq_set_arguments() */ $$ = NODE_SPECIAL_EXCESSIVE_COMMA; /*% ripper: excessed_comma! %*/ } ; block_param : f_arg ',' f_block_optarg ',' f_rest_arg opt_block_args_tail { $$ = new_args(p, $1, $3, $5, Qnone, $6, &@$); /*% ripper: ripper_new_args(p, get_value($:1), get_value($:3), get_value($:5), Qnil, get_value($:6)) %*/ } | f_arg ',' f_block_optarg ',' f_rest_arg ',' f_arg opt_block_args_tail { $$ = new_args(p, $1, $3, $5, $7, $8, &@$); /*% ripper: ripper_new_args(p, get_value($:1), get_value($:3), get_value($:5), get_value($:7), get_value($:8)) %*/ } | f_arg ',' f_block_optarg opt_block_args_tail { $$ = new_args(p, $1, $3, Qnone, Qnone, $4, &@$); /*% ripper: ripper_new_args(p, get_value($:1), get_value($:3), Qnil, Qnil, get_value($:4)) %*/ } | f_arg ',' f_block_optarg ',' f_arg opt_block_args_tail { $$ = new_args(p, $1, $3, Qnone, $5, $6, &@$); /*% ripper: ripper_new_args(p, get_value($:1), get_value($:3), Qnil, get_value($:5), get_value($:6)) %*/ } | f_arg ',' f_rest_arg opt_block_args_tail { $$ = new_args(p, $1, Qnone, $3, Qnone, $4, &@$); /*% ripper: ripper_new_args(p, get_value($:1), Qnil, get_value($:3), Qnil, get_value($:4)) %*/ } | f_arg excessed_comma { $$ = new_args_tail(p, Qnone, Qnone, Qnone, &@2); $$ = new_args(p, $1, Qnone, $2, Qnone, $$, &@$); /*% ripper: ripper_new_args(p, get_value($:1), Qnil, get_value($:2), Qnil, rb_ary_new_from_args(3, Qnil, Qnil, Qnil)) %*/ } | f_arg ',' f_rest_arg ',' f_arg opt_block_args_tail { $$ = new_args(p, $1, Qnone, $3, $5, $6, &@$); /*% ripper: ripper_new_args(p, get_value($:1), Qnil, get_value($:3), get_value($:5), get_value($:6)) %*/ } | f_arg opt_block_args_tail { $$ = new_args(p, $1, Qnone, Qnone, Qnone, $2, &@$); /*% ripper: ripper_new_args(p, get_value($:1), Qnil, Qnil, Qnil, get_value($:2)) %*/ } | f_block_optarg ',' f_rest_arg opt_block_args_tail { $$ = new_args(p, Qnone, $1, $3, Qnone, $4, &@$); /*% ripper: ripper_new_args(p, Qnil, get_value($:1), get_value($:3), Qnil, get_value($:4)) %*/ } | f_block_optarg ',' f_rest_arg ',' f_arg opt_block_args_tail { $$ = new_args(p, Qnone, $1, $3, $5, $6, &@$); /*% ripper: ripper_new_args(p, Qnil, get_value($:1), get_value($:3), get_value($:5), get_value($:6)) %*/ } | f_block_optarg opt_block_args_tail { $$ = new_args(p, Qnone, $1, Qnone, Qnone, $2, &@$); /*% ripper: ripper_new_args(p, Qnil, get_value($:1), Qnil, Qnil, get_value($:2)) %*/ } | f_block_optarg ',' f_arg opt_block_args_tail { $$ = new_args(p, Qnone, $1, Qnone, $3, $4, &@$); /*% ripper: ripper_new_args(p, Qnil, get_value($:1), Qnil, get_value($:3), get_value($:4)) %*/ } | f_rest_arg opt_block_args_tail { $$ = new_args(p, Qnone, Qnone, $1, Qnone, $2, &@$); /*% ripper: ripper_new_args(p, Qnil, Qnil, get_value($:1), Qnil, get_value($:2)) %*/ } | f_rest_arg ',' f_arg opt_block_args_tail { $$ = new_args(p, Qnone, Qnone, $1, $3, $4, &@$); /*% ripper: ripper_new_args(p, Qnil, Qnil, get_value($:1), get_value($:3), get_value($:4)) %*/ } | block_args_tail { $$ = new_args(p, Qnone, Qnone, Qnone, Qnone, $1, &@$); /*% ripper: ripper_new_args(p, Qnil, Qnil, Qnil, Qnil, get_value($:1)) %*/ } ; opt_block_param : none | block_param_def { p->command_start = TRUE; } ; block_param_def : '|' opt_bv_decl '|' { p->cur_arg = 0; p->max_numparam = ORDINAL_PARAM; p->ctxt.in_argdef = 0; $$ = 0; /*%%%*/ /*% VALUE val = dispatch7(params, Qnil,Qnil,Qnil,Qnil,Qnil,Qnil,Qnil); val = dispatch2(block_var, val, get_value($:2)); set_value(val); %*/ } | '|' block_param opt_bv_decl '|' { p->cur_arg = 0; p->max_numparam = ORDINAL_PARAM; p->ctxt.in_argdef = 0; $$ = $2; /*% ripper: block_var!($:2, $:3) %*/ } ; opt_bv_decl : opt_nl { $$ = 0; /*% ripper: Qfalse %*/ } | opt_nl ';' bv_decls opt_nl { $$ = 0; /*% ripper: get_value($:3) %*/ } ; bv_decls : bvar /*% ripper[brace]: rb_ary_new3(1, get_value($:1)) %*/ | bv_decls ',' bvar /*% ripper[brace]: rb_ary_push(get_value($:1), get_value($:3)) %*/ ; bvar : tIDENTIFIER { new_bv(p, $1); /*% ripper: get_value($:1) %*/ } | f_bad_arg { $$ = 0; } ; max_numparam : { $$ = p->max_numparam; p->max_numparam = 0; } ; numparam : { $$ = numparam_push(p); } ; it_id : { $$ = p->it_id; p->it_id = 0; } ; lambda : tLAMBDA[dyna] { token_info_push(p, "->", &@1); $dyna = dyna_push(p); $$ = p->lex.lpar_beg; p->lex.lpar_beg = p->lex.paren_nest; }[lpar] max_numparam numparam it_id allow_exits f_larglist[args] { CMDARG_PUSH(0); } lambda_body[body] { int max_numparam = p->max_numparam; ID it_id = p->it_id; p->lex.lpar_beg = $lpar; p->max_numparam = $max_numparam; p->it_id = $it_id; restore_block_exit(p, $allow_exits); CMDARG_POP(); $args = args_with_numbered(p, $args, max_numparam, it_id); { YYLTYPE loc = code_loc_gen(&@args, &@body); $$ = NEW_LAMBDA($args, $body, &loc); nd_set_line(RNODE_LAMBDA($$)->nd_body, @body.end_pos.lineno); nd_set_line($$, @args.end_pos.lineno); nd_set_first_loc($$, @1.beg_pos); } /*% ripper: lambda!($:args, $:body) %*/ numparam_pop(p, $numparam); dyna_pop(p, $dyna); } ; f_larglist : '(' f_args opt_bv_decl ')' { p->ctxt.in_argdef = 0; $$ = $2; p->max_numparam = ORDINAL_PARAM; /*% ripper: paren!($:2) %*/ } | f_args { p->ctxt.in_argdef = 0; if (!args_info_empty_p(&$1->nd_ainfo)) p->max_numparam = ORDINAL_PARAM; $$ = $1; } ; lambda_body : tLAMBEG compstmt '}' { token_info_pop(p, "}", &@3); $$ = $2; /*% ripper: get_value($:2); %*/ } | keyword_do_LAMBDA { push_end_expect_token_locations(p, &@1.beg_pos); } bodystmt k_end { $$ = $3; /*% ripper: get_value($:3); %*/ } ; do_block : k_do_block do_body k_end { $$ = $2; set_embraced_location($$, &@1, &@3); /*% ripper: get_value($:2); %*/ } ; block_call : command do_block { if (nd_type_p($1, NODE_YIELD)) { compile_error(p, "block given to yield"); } else { block_dup_check(p, get_nd_args(p, $1), $2); } $$ = method_add_block(p, $1, $2, &@$); fixpos($$, $1); /*% ripper: method_add_block!($:1, $:2) %*/ } | block_call call_op2 operation2 opt_paren_args { $$ = new_qcall(p, $2, $1, $3, $4, &@3, &@$); /*% ripper: opt_event(:method_add_arg!, call!($:1, $:2, $:3), $:4) %*/ } | block_call call_op2 operation2 opt_paren_args brace_block { $$ = new_command_qcall(p, $2, $1, $3, $4, $5, &@3, &@$); /*% ripper: opt_event(:method_add_block!, command_call!($:1, $:2, $:3, $:4), $:5) %*/ } | block_call call_op2 operation2 command_args do_block { $$ = new_command_qcall(p, $2, $1, $3, $4, $5, &@3, &@$); /*% ripper: method_add_block!(command_call!($:1, $:2, $:3, $:4), $:5) %*/ } ; method_call : fcall paren_args { $1->nd_args = $2; $$ = (NODE *)$1; nd_set_last_loc($1, @2.end_pos); /*% ripper: method_add_arg!(fcall!($:1), $:2) %*/ } | primary_value call_op operation2 opt_paren_args { $$ = new_qcall(p, $2, $1, $3, $4, &@3, &@$); nd_set_line($$, @3.end_pos.lineno); /*% ripper: opt_event(:method_add_arg!, call!($:1, $:2, $:3), $:4) %*/ } | primary_value tCOLON2 operation2 paren_args { $$ = new_qcall(p, idCOLON2, $1, $3, $4, &@3, &@$); nd_set_line($$, @3.end_pos.lineno); /*% ripper: method_add_arg!(call!($:1, $:2, $:3), $:4) %*/ } | primary_value tCOLON2 operation3 { $$ = new_qcall(p, idCOLON2, $1, $3, Qnull, &@3, &@$); /*% ripper: call!($:1, $:2, $:3) %*/ } | primary_value call_op paren_args { $$ = new_qcall(p, $2, $1, idCall, $3, &@2, &@$); nd_set_line($$, @2.end_pos.lineno); /*% ripper: method_add_arg!(call!($:1, $:2, ID2VAL(idCall)), $:3) %*/ } | primary_value tCOLON2 paren_args { $$ = new_qcall(p, idCOLON2, $1, idCall, $3, &@2, &@$); nd_set_line($$, @2.end_pos.lineno); /*% ripper: method_add_arg!(call!($:1, $:2, ID2VAL(idCall)), $:3) %*/ } | keyword_super paren_args { $$ = NEW_SUPER($2, &@$); /*% ripper: super!($:2) %*/ } | keyword_super { $$ = NEW_ZSUPER(&@$); /*% ripper: zsuper! %*/ } | primary_value '[' opt_call_args rbracket { $$ = NEW_CALL($1, tAREF, $3, &@$); fixpos($$, $1); /*% ripper: aref!($:1, $:3) %*/ } ; brace_block : '{' brace_body '}' { $$ = $2; set_embraced_location($$, &@1, &@3); /*% ripper: get_value($:2); %*/ } | k_do do_body k_end { $$ = $2; set_embraced_location($$, &@1, &@3); /*% ripper: get_value($:2); %*/ } ; brace_body : {$$ = dyna_push(p);}[dyna] max_numparam numparam it_id allow_exits opt_block_param[args] compstmt { int max_numparam = p->max_numparam; ID it_id = p->it_id; p->max_numparam = $max_numparam; p->it_id = $it_id; $args = args_with_numbered(p, $args, max_numparam, it_id); $$ = NEW_ITER($args, $compstmt, &@$); /*% ripper: brace_block!($:args, $:compstmt) %*/ restore_block_exit(p, $allow_exits); numparam_pop(p, $numparam); dyna_pop(p, $dyna); } ; do_body : { $$ = dyna_push(p); CMDARG_PUSH(0); }[dyna] max_numparam numparam it_id allow_exits opt_block_param[args] bodystmt { int max_numparam = p->max_numparam; ID it_id = p->it_id; p->max_numparam = $max_numparam; p->it_id = $it_id; $args = args_with_numbered(p, $args, max_numparam, it_id); $$ = NEW_ITER($args, $bodystmt, &@$); /*% ripper: do_block!($:args, $:bodystmt) %*/ CMDARG_POP(); restore_block_exit(p, $allow_exits); numparam_pop(p, $numparam); dyna_pop(p, $dyna); } ; case_args : arg_value { check_literal_when(p, $1, &@1); $$ = NEW_LIST($1, &@$); /*% ripper: args_add!(args_new!, $:1) %*/ } | tSTAR arg_value { $$ = NEW_SPLAT($2, &@$); /*% ripper: args_add_star!(args_new!, $:2) %*/ } | case_args ',' arg_value { check_literal_when(p, $3, &@3); $$ = last_arg_append(p, $1, $3, &@$); /*% ripper: args_add!($:1, $:3) %*/ } | case_args ',' tSTAR arg_value { $$ = rest_arg_append(p, $1, $4, &@$); /*% ripper: args_add_star!($:1, $:4) %*/ } ; case_body : k_when case_args then compstmt cases { $$ = NEW_WHEN($2, $4, $5, &@$); fixpos($$, $2); /*% ripper: when!($:2, $:4, $:5) %*/ } ; cases : opt_else | case_body ; p_pvtbl : {$$ = p->pvtbl; p->pvtbl = st_init_numtable();}; p_pktbl : {$$ = p->pktbl; p->pktbl = 0;}; p_in_kwarg : { $$ = p->ctxt; SET_LEX_STATE(EXPR_BEG|EXPR_LABEL); p->command_start = FALSE; p->ctxt.in_kwarg = 1; } ; p_case_body : keyword_in p_in_kwarg[ctxt] p_pvtbl p_pktbl p_top_expr[expr] then { pop_pktbl(p, $p_pktbl); pop_pvtbl(p, $p_pvtbl); p->ctxt.in_kwarg = $ctxt.in_kwarg; } compstmt p_cases[cases] { $$ = NEW_IN($expr, $compstmt, $cases, &@$); /*% ripper: in!($:expr, $:compstmt, $:cases) %*/ } ; p_cases : opt_else | p_case_body ; p_top_expr : p_top_expr_body | p_top_expr_body modifier_if expr_value { $$ = new_if(p, $3, $1, 0, &@$); fixpos($$, $3); /*% ripper: if_mod!($:3, $:1) %*/ } | p_top_expr_body modifier_unless expr_value { $$ = new_unless(p, $3, $1, 0, &@$); fixpos($$, $3); /*% ripper: unless_mod!($:3, $:1) %*/ } ; p_top_expr_body : p_expr | p_expr ',' { $$ = new_array_pattern_tail(p, Qnone, 1, Qnone, Qnone, &@$); $$ = new_array_pattern(p, Qnone, $1, $$, &@$); /*% ripper: ripper_new_array_pattern(p, Qnil, get_value($:1), rb_ary_new()); %*/ } | p_expr ',' p_args { $$ = new_array_pattern(p, Qnone, $1, $3, &@$); nd_set_first_loc($$, @1.beg_pos); /*% ripper: ripper_new_array_pattern(p, Qnil, get_value($:1), get_value($:3)); %*/ } | p_find { $$ = new_find_pattern(p, Qnone, $1, &@$); /*% ripper: ripper_new_find_pattern(p, Qnil, get_value($:1)); %*/ } | p_args_tail { $$ = new_array_pattern(p, Qnone, Qnone, $1, &@$); /*% ripper: ripper_new_array_pattern(p, Qnil, Qnil, get_value($:1)); %*/ } | p_kwargs { $$ = new_hash_pattern(p, Qnone, $1, &@$); /*% ripper: ripper_new_hash_pattern(p, Qnil, get_value($:1)); %*/ } ; p_expr : p_as ; p_as : p_expr tASSOC p_variable { NODE *n = NEW_LIST($1, &@$); n = list_append(p, n, $3); $$ = new_hash(p, n, &@$); /*% ripper: binary!($:1, ID2VAL((id_assoc)), $:3) %*/ } | p_alt ; p_alt : p_alt '|' p_expr_basic { $$ = NEW_OR($1, $3, &@$); /*% ripper: binary!($:1, ID2VAL(idOr), $:3) %*/ } | p_expr_basic ; p_lparen : '(' p_pktbl { $$ = $2; /*% ripper: get_value($:2); %*/ } ; p_lbracket : '[' p_pktbl { $$ = $2; /*% ripper: get_value($:2); %*/ } ; p_expr_basic : p_value | p_variable | p_const p_lparen[p_pktbl] p_args rparen { pop_pktbl(p, $p_pktbl); $$ = new_array_pattern(p, $p_const, Qnone, $p_args, &@$); nd_set_first_loc($$, @p_const.beg_pos); /*% ripper: ripper_new_array_pattern(p, get_value($:p_const), Qnil, get_value($:p_args)); %*/ } | p_const p_lparen[p_pktbl] p_find rparen { pop_pktbl(p, $p_pktbl); $$ = new_find_pattern(p, $p_const, $p_find, &@$); nd_set_first_loc($$, @p_const.beg_pos); /*% ripper: ripper_new_find_pattern(p, get_value($:p_const), get_value($:p_find)); %*/ } | p_const p_lparen[p_pktbl] p_kwargs rparen { pop_pktbl(p, $p_pktbl); $$ = new_hash_pattern(p, $p_const, $p_kwargs, &@$); nd_set_first_loc($$, @p_const.beg_pos); /*% ripper: ripper_new_hash_pattern(p, get_value($:p_const), get_value($:p_kwargs)); %*/ } | p_const '(' rparen { $$ = new_array_pattern_tail(p, Qnone, 0, Qnone, Qnone, &@$); $$ = new_array_pattern(p, $p_const, Qnone, $$, &@$); /*% ripper: ripper_new_array_pattern(p, get_value($:p_const), Qnil, rb_ary_new()); %*/ } | p_const p_lbracket[p_pktbl] p_args rbracket { pop_pktbl(p, $p_pktbl); $$ = new_array_pattern(p, $p_const, Qnone, $p_args, &@$); nd_set_first_loc($$, @p_const.beg_pos); /*% ripper: ripper_new_array_pattern(p, get_value($:p_const), Qnil, get_value($:p_args)); %*/ } | p_const p_lbracket[p_pktbl] p_find rbracket { pop_pktbl(p, $p_pktbl); $$ = new_find_pattern(p, $p_const, $p_find, &@$); nd_set_first_loc($$, @p_const.beg_pos); /*% ripper: ripper_new_find_pattern(p, get_value($:p_const), get_value($:p_find)); %*/ } | p_const p_lbracket[p_pktbl] p_kwargs rbracket { pop_pktbl(p, $p_pktbl); $$ = new_hash_pattern(p, $p_const, $p_kwargs, &@$); nd_set_first_loc($$, @p_const.beg_pos); /*% ripper: ripper_new_hash_pattern(p, get_value($:p_const), get_value($:p_kwargs)); %*/ } | p_const '[' rbracket { $$ = new_array_pattern_tail(p, Qnone, 0, Qnone, Qnone, &@$); $$ = new_array_pattern(p, $1, Qnone, $$, &@$); /*% ripper: ripper_new_array_pattern(p, get_value($:1), Qnil, rb_ary_new()); %*/ } | tLBRACK p_args rbracket { $$ = new_array_pattern(p, Qnone, Qnone, $p_args, &@$); /*% ripper: ripper_new_array_pattern(p, Qnil, Qnil, get_value($:p_args)); %*/ } | tLBRACK p_find rbracket { $$ = new_find_pattern(p, Qnone, $p_find, &@$); /*% ripper: ripper_new_find_pattern(p, Qnil, get_value($:p_find)); %*/ } | tLBRACK rbracket { $$ = new_array_pattern_tail(p, Qnone, 0, Qnone, Qnone, &@$); $$ = new_array_pattern(p, Qnone, Qnone, $$, &@$); /*% ripper: ripper_new_array_pattern(p, Qnil, Qnil, rb_ary_new()); %*/ } | tLBRACE p_pktbl lex_ctxt[ctxt] { p->ctxt.in_kwarg = 0; } p_kwargs rbrace { pop_pktbl(p, $p_pktbl); p->ctxt.in_kwarg = $ctxt.in_kwarg; $$ = new_hash_pattern(p, Qnone, $p_kwargs, &@$); /*% ripper: ripper_new_hash_pattern(p, Qnil, get_value($:p_kwargs)); %*/ } | tLBRACE rbrace { $$ = new_hash_pattern_tail(p, Qnone, 0, &@$); $$ = new_hash_pattern(p, Qnone, $$, &@$); /*%%%*/ /*% VALUE val = ripper_new_hash_pattern_tail(p, Qnil, 0); val = ripper_new_hash_pattern(p, Qnil, val); set_value(val); %*/ } | tLPAREN p_pktbl p_expr rparen { pop_pktbl(p, $p_pktbl); $$ = $p_expr; /*% ripper: get_value($:p_expr); %*/ } ; p_args : p_expr { NODE *pre_args = NEW_LIST($1, &@$); $$ = new_array_pattern_tail(p, pre_args, 0, Qnone, Qnone, &@$); /*%%%*/ /*% VALUE ary = rb_ary_new_from_args(1, get_value($:1)); set_value(rb_ary_new_from_args(3, ary, Qnil, Qnil)); %*/ } | p_args_head { $$ = new_array_pattern_tail(p, $1, 1, Qnone, Qnone, &@$); /*%%%*/ /*% set_value(rb_ary_new_from_args(3, get_value($:1), Qnil, Qnil)); %*/ } | p_args_head p_arg { $$ = new_array_pattern_tail(p, list_concat($1, $2), 0, Qnone, Qnone, &@$); /*%%%*/ /*% VALUE pre_args = rb_ary_concat(get_value($:1), get_value($:2)); set_value(rb_ary_new_from_args(3, pre_args, Qnil, Qnil)); %*/ } | p_args_head p_rest { $$ = new_array_pattern_tail(p, $1, 1, $2, Qnone, &@$); /*%%%*/ /*% set_value(rb_ary_new_from_args(3, get_value($:1), get_value($:2), Qnil)); %*/ } | p_args_head p_rest ',' p_args_post { $$ = new_array_pattern_tail(p, $1, 1, $2, $4, &@$); /*%%%*/ /*% set_value(rb_ary_new_from_args(3, get_value($:1), get_value($:2), get_value($:4))); %*/ } | p_args_tail ; p_args_head : p_arg ',' { $$ = $1; } | p_args_head p_arg ',' { $$ = list_concat($1, $2); /*% ripper: rb_ary_concat(get_value($:1), get_value($:2)) %*/ } ; p_args_tail : p_rest { $$ = new_array_pattern_tail(p, Qnone, 1, $1, Qnone, &@$); /*% ripper: ripper_new_array_pattern_tail(p, Qnil, get_value($:1), Qnil); %*/ } | p_rest ',' p_args_post { $$ = new_array_pattern_tail(p, Qnone, 1, $1, $3, &@$); /*% ripper: ripper_new_array_pattern_tail(p, Qnil, get_value($:1), get_value($:3)); %*/ } ; p_find : p_rest ',' p_args_post ',' p_rest { $$ = new_find_pattern_tail(p, $1, $3, $5, &@$); /*% ripper: ripper_new_find_pattern_tail(p, get_value($:1), get_value($:3), get_value($:5)) %*/ } ; p_rest : tSTAR tIDENTIFIER { error_duplicate_pattern_variable(p, $2, &@2); $$ = assignable(p, $2, 0, &@$); /*% ripper: ripper_assignable(p, $2, var_field(p, get_value($:2))) %*/ } | tSTAR { $$ = 0; /*% ripper: var_field(p, Qnil) %*/ } ; p_args_post : p_arg | p_args_post ',' p_arg { $$ = list_concat($1, $3); /*% ripper: rb_ary_concat(get_value($:1), get_value($:3)) %*/ } ; p_arg : p_expr { $$ = NEW_LIST($1, &@$); /*% ripper: rb_ary_new_from_args(1, get_value($:1)) %*/ } ; p_kwargs : p_kwarg ',' p_any_kwrest { $$ = new_hash_pattern_tail(p, new_unique_key_hash(p, $1, &@$), $3, &@$); /*% ripper: ripper_new_hash_pattern_tail(p, get_value($:1), get_value($:3)) %*/ } | p_kwarg { $$ = new_hash_pattern_tail(p, new_unique_key_hash(p, $1, &@$), 0, &@$); /*% ripper: ripper_new_hash_pattern_tail(p, get_value($:1), 0) %*/ } | p_kwarg ',' { $$ = new_hash_pattern_tail(p, new_unique_key_hash(p, $1, &@$), 0, &@$); /*% ripper: ripper_new_hash_pattern_tail(p, get_value($:1), 0) %*/ } | p_any_kwrest { $$ = new_hash_pattern_tail(p, new_hash(p, Qnone, &@$), $1, &@$); /*% ripper: ripper_new_hash_pattern_tail(p, rb_ary_new(), get_value($:1)) %*/ } ; p_kwarg : p_kw /*% ripper[brace]: rb_ary_new_from_args(1, get_value($:1)) %*/ | p_kwarg ',' p_kw { $$ = list_concat($1, $3); /*% ripper: rb_ary_push(get_value($:1), get_value($:3)) %*/ } ; p_kw : p_kw_label p_expr { error_duplicate_pattern_key(p, $1, &@1); $$ = list_append(p, NEW_LIST(NEW_SYM(rb_id2str($1), &@1), &@$), $2); /*% ripper: rb_ary_new_from_args(2, get_value($:1), get_value($:2)) %*/ } | p_kw_label { error_duplicate_pattern_key(p, $1, &@1); if ($1 && !is_local_id($1)) { yyerror1(&@1, "key must be valid as local variables"); } error_duplicate_pattern_variable(p, $1, &@1); $$ = list_append(p, NEW_LIST(NEW_SYM(rb_id2str($1), &@$), &@$), assignable(p, $1, 0, &@$)); /*% ripper: rb_ary_new_from_args(2, ripper_assignable(p, $1, get_value($:1)), Qnil) %*/ } ; p_kw_label : tLABEL | tSTRING_BEG string_contents tLABEL_END { YYLTYPE loc = code_loc_gen(&@1, &@3); if (!$2 || nd_type_p($2, NODE_STR)) { NODE *node = dsym_node(p, $2, &loc); $$ = rb_sym2id(rb_node_sym_string_val(node)); } else { yyerror1(&loc, "symbol literal with interpolation is not allowed"); $$ = rb_intern_str(STR_NEW0()); } /*% ripper: get_value($:2); %*/ } ; p_kwrest : kwrest_mark tIDENTIFIER { $$ = $2; /*% ripper: get_value($:2); %*/ } | kwrest_mark { $$ = 0; /*% ripper: 0; %*/ } ; p_kwnorest : kwrest_mark keyword_nil { $$ = 0; } ; p_any_kwrest : p_kwrest | p_kwnorest { $$ = idNil; /*% ripper: ID2VAL(idNil) %*/ } ; p_value : p_primitive | p_primitive tDOT2 p_primitive { value_expr($1); value_expr($3); $$ = NEW_DOT2($1, $3, &@$); /*% ripper: dot2!($:1, $:3) %*/ } | p_primitive tDOT3 p_primitive { value_expr($1); value_expr($3); $$ = NEW_DOT3($1, $3, &@$); /*% ripper: dot3!($:1, $:3) %*/ } | p_primitive tDOT2 { value_expr($1); $$ = NEW_DOT2($1, new_nil_at(p, &@2.end_pos), &@$); /*% ripper: dot2!($:1, Qnil) %*/ } | p_primitive tDOT3 { value_expr($1); $$ = NEW_DOT3($1, new_nil_at(p, &@2.end_pos), &@$); /*% ripper: dot3!($:1, Qnil) %*/ } | p_var_ref | p_expr_ref | p_const | tBDOT2 p_primitive { value_expr($2); $$ = NEW_DOT2(new_nil_at(p, &@1.beg_pos), $2, &@$); /*% ripper: dot2!(Qnil, $:2) %*/ } | tBDOT3 p_primitive { value_expr($2); $$ = NEW_DOT3(new_nil_at(p, &@1.beg_pos), $2, &@$); /*% ripper: dot3!(Qnil, $:2) %*/ } ; p_primitive : literal | strings | xstring | regexp | words | qwords | symbols | qsymbols | keyword_variable { if (!($$ = gettable(p, $1, &@$))) $$ = NEW_ERROR(&@$); /*% ripper: var_ref!($:1) %*/ } | lambda ; p_variable : tIDENTIFIER { error_duplicate_pattern_variable(p, $1, &@1); $$ = assignable(p, $1, 0, &@$); /*% ripper: ripper_assignable(p, $1, var_field(p, get_value($:1))) %*/ } ; p_var_ref : '^' tIDENTIFIER { NODE *n = gettable(p, $2, &@$); if (!n) { n = NEW_ERROR(&@$); } else if (!(nd_type_p(n, NODE_LVAR) || nd_type_p(n, NODE_DVAR))) { compile_error(p, "%"PRIsVALUE": no such local variable", rb_id2str($2)); } $$ = n; /*% ripper: var_ref!($:2) %*/ } | '^' nonlocal_var { if (!($$ = gettable(p, $2, &@$))) $$ = NEW_ERROR(&@$); /*% ripper: var_ref!($:2) %*/ } ; p_expr_ref : '^' tLPAREN expr_value rparen { $$ = NEW_BLOCK($3, &@$); /*% ripper: begin!($:3) %*/ } ; p_const : tCOLON3 cname { $$ = NEW_COLON3($2, &@$); /*% ripper: top_const_ref!($:2) %*/ } | p_const tCOLON2 cname { $$ = NEW_COLON2($1, $3, &@$); /*% ripper: const_path_ref!($:1, $:3) %*/ } | tCONSTANT { $$ = gettable(p, $1, &@$); /*% ripper: var_ref!($:1) %*/ } ; opt_rescue : k_rescue exc_list exc_var then compstmt opt_rescue { NODE *body = $5; if ($3) { NODE *err = NEW_ERRINFO(&@3); err = node_assign(p, $3, err, NO_LEX_CTXT, &@3); body = block_append(p, err, body); } $$ = NEW_RESBODY($2, body, $6, &@$); if ($2) { fixpos($$, $2); } else if ($3) { fixpos($$, $3); } else { fixpos($$, $5); } /*% ripper: rescue!($:2, $:3, $:5, $:6) %*/ } | none ; exc_list : arg_value { $$ = NEW_LIST($1, &@$); /*% ripper: rb_ary_new3(1, get_value($:1)) %*/ } | mrhs { if (!($$ = splat_array($1))) $$ = $1; } | none ; exc_var : tASSOC lhs { $$ = $2; /*% ripper: get_value($:2); %*/ } | none ; opt_ensure : k_ensure compstmt { p->ctxt.in_rescue = $1.in_rescue; $$ = $2; /*% ripper: ensure!($:2) %*/ } | none ; literal : numeric | symbol ; strings : string { NODE *node = $1; if (!node) { node = NEW_STR(STRING_NEW0(), &@$); } else { node = evstr2dstr(p, node); } $$ = node; /*% ripper: get_value($:1); %*/ } ; string : tCHAR | string1 | string string1 { $$ = literal_concat(p, $1, $2, &@$); /*% ripper: string_concat!($:1, $:2) %*/ } ; string1 : tSTRING_BEG string_contents tSTRING_END { /*%%%*/ /*% int indent = p->heredoc_indent; %*/ $$ = heredoc_dedent(p, $2); if ($$) nd_set_loc($$, &@$); /*%%%*/ /*% VALUE val = dispatch1(string_literal, ripper_heredoc_dedent(p, indent, get_value($:2))); set_value(val); %*/ } ; xstring : tXSTRING_BEG xstring_contents tSTRING_END { /*%%%*/ /*% int indent = p->heredoc_indent; %*/ $$ = new_xstring(p, heredoc_dedent(p, $2), &@$); /*%%%*/ /*% VALUE val = dispatch1(xstring_literal, ripper_heredoc_dedent(p, indent, get_value($:2))); set_value(val); %*/ } ; regexp : tREGEXP_BEG regexp_contents tREGEXP_END { $$ = new_regexp(p, $2, $3, &@$); /*% ripper: regexp_literal!($:2, $:3) %*/ } ; words_sep : ' ' {} | words_sep ' ' ; words : tWORDS_BEG words_sep word_list tSTRING_END { $$ = make_list($3, &@$); /*% ripper: array!($:3) %*/ } ; word_list : /* none */ { $$ = 0; /*% ripper: words_new! %*/ } | word_list word words_sep { $$ = list_append(p, $1, evstr2dstr(p, $2)); /*% ripper: words_add!($:1, $:2) %*/ } ; word : string_content /*% ripper[brace]: word_add!(word_new!, $:1) %*/ | word string_content { $$ = literal_concat(p, $1, $2, &@$); /*% ripper: word_add!($:1, $:2) %*/ } ; symbols : tSYMBOLS_BEG words_sep symbol_list tSTRING_END { $$ = make_list($3, &@$); /*% ripper: array!($:3) %*/ } ; symbol_list : /* none */ { $$ = 0; /*% ripper: symbols_new! %*/ } | symbol_list word words_sep { $$ = symbol_append(p, $1, evstr2dstr(p, $2)); /*% ripper: symbols_add!($:1, $:2) %*/ } ; qwords : tQWORDS_BEG words_sep qword_list tSTRING_END { $$ = make_list($3, &@$); /*% ripper: array!($:3) %*/ } ; qsymbols : tQSYMBOLS_BEG words_sep qsym_list tSTRING_END { $$ = make_list($3, &@$); /*% ripper: array!($:3) %*/ } ; qword_list : /* none */ { $$ = 0; /*% ripper: qwords_new! %*/ } | qword_list tSTRING_CONTENT words_sep { $$ = list_append(p, $1, $2); /*% ripper: qwords_add!($:1, $:2) %*/ } ; qsym_list : /* none */ { $$ = 0; /*% ripper: qsymbols_new! %*/ } | qsym_list tSTRING_CONTENT words_sep { $$ = symbol_append(p, $1, $2); /*% ripper: qsymbols_add!($:1, $:2) %*/ } ; string_contents : /* none */ { $$ = 0; /*%%%*/ /*% %*/ /*% ripper: string_content! %*/ } | string_contents string_content { $$ = literal_concat(p, $1, $2, &@$); /*% ripper: string_add!($:1, $:2) %*/ } ; xstring_contents: /* none */ { $$ = 0; /*% ripper: xstring_new! %*/ } | xstring_contents string_content { $$ = literal_concat(p, $1, $2, &@$); /*% ripper: xstring_add!($:1, $:2) %*/ } ; regexp_contents: /* none */ { $$ = 0; /*% ripper: regexp_new! %*/ } | regexp_contents string_content { NODE *head = $1, *tail = $2; if (!head) { $$ = tail; } else if (!tail) { $$ = head; } else { switch (nd_type(head)) { case NODE_STR: head = str2dstr(p, head); break; case NODE_DSTR: break; default: head = list_append(p, NEW_DSTR(0, &@$), head); break; } $$ = list_append(p, head, tail); } /*% ripper: regexp_add!($:1, $:2) %*/ } ; string_content : tSTRING_CONTENT /*% ripper[brace]: get_value($:1); %*/ | tSTRING_DVAR { /* need to backup p->lex.strterm so that a string literal `%&foo,#$&,bar&` can be parsed */ $$ = p->lex.strterm; p->lex.strterm = 0; SET_LEX_STATE(EXPR_BEG); } string_dvar { p->lex.strterm = $2; $$ = NEW_EVSTR($3, &@$); nd_set_line($$, @3.end_pos.lineno); /*% ripper: string_dvar!($:3) %*/ } | tSTRING_DBEG[term] { CMDARG_PUSH(0); COND_PUSH(0); /* need to backup p->lex.strterm so that a string literal `%!foo,#{ !0 },bar!` can be parsed */ $term = p->lex.strterm; p->lex.strterm = 0; $$ = p->lex.state; SET_LEX_STATE(EXPR_BEG); }[state] { $$ = p->lex.brace_nest; p->lex.brace_nest = 0; }[brace] { $$ = p->heredoc_indent; p->heredoc_indent = 0; }[indent] compstmt string_dend { COND_POP(); CMDARG_POP(); p->lex.strterm = $term; SET_LEX_STATE($state); p->lex.brace_nest = $brace; p->heredoc_indent = $indent; p->heredoc_line_indent = -1; if ($compstmt) nd_unset_fl_newline($compstmt); $$ = new_evstr(p, $compstmt, &@$); /*% ripper: string_embexpr!($:compstmt) %*/ } ; string_dend : tSTRING_DEND | END_OF_INPUT ; string_dvar : nonlocal_var { if (!($$ = gettable(p, $1, &@$))) $$ = NEW_ERROR(&@$); /*% ripper: var_ref!($:1) %*/ } | backref ; symbol : ssym | dsym ; ssym : tSYMBEG sym { SET_LEX_STATE(EXPR_END); VALUE str = rb_id2str($2); /* * TODO: * set_yylval_noname sets invalid id to yylval. * This branch can be removed once yylval is changed to * hold lexed string. */ if (!str) str = STR_NEW0(); $$ = NEW_SYM(str, &@$); /*% ripper: symbol_literal!(symbol!($:2)) %*/ } ; sym : fname | nonlocal_var ; dsym : tSYMBEG string_contents tSTRING_END { SET_LEX_STATE(EXPR_END); $$ = dsym_node(p, $2, &@$); /*% ripper: dyna_symbol!($:2) %*/ } ; numeric : simple_numeric | tUMINUS_NUM simple_numeric %prec tLOWEST { $$ = $2; negate_lit(p, $$); /*% ripper: unary!(ID2VAL(idUMinus), $:2) %*/ } ; simple_numeric : tINTEGER | tFLOAT | tRATIONAL | tIMAGINARY ; nonlocal_var : tIVAR | tGVAR | tCVAR ; user_variable : tIDENTIFIER | tCONSTANT | nonlocal_var ; keyword_variable: keyword_nil {$$ = KWD2EID(nil, $1);} | keyword_self {$$ = KWD2EID(self, $1);} | keyword_true {$$ = KWD2EID(true, $1);} | keyword_false {$$ = KWD2EID(false, $1);} | keyword__FILE__ {$$ = KWD2EID(_FILE__, $1);} | keyword__LINE__ {$$ = KWD2EID(_LINE__, $1);} | keyword__ENCODING__ {$$ = KWD2EID(_ENCODING__, $1);} ; var_ref : user_variable { if (!($$ = gettable(p, $1, &@$))) $$ = NEW_ERROR(&@$); /*%%%*/ /*% if (id_is_var(p, $1)) { VALUE val = dispatch1(var_ref, get_value($:1)); set_value(val); } else { VALUE val = dispatch1(vcall, get_value($:1)); set_value(val); } %*/ } | keyword_variable { if (!($$ = gettable(p, $1, &@$))) $$ = NEW_ERROR(&@$); /*% ripper: var_ref!($:1) %*/ } ; var_lhs : user_variable { $$ = assignable(p, $1, 0, &@$); /*% ripper: ripper_assignable(p, $1, var_field(p, get_value($:1))) %*/ } | keyword_variable { $$ = assignable(p, $1, 0, &@$); /*% ripper: ripper_assignable(p, $1, var_field(p, get_value($:1))) %*/ } ; backref : tNTH_REF | tBACK_REF ; superclass : '<' { SET_LEX_STATE(EXPR_BEG); p->command_start = TRUE; } expr_value term { $$ = $3; /*% ripper: get_value($:3); %*/ } | /* none */ { $$ = 0; /*% ripper: Qnil %*/ } ; f_opt_paren_args: f_paren_args | none { p->ctxt.in_argdef = 0; $$ = new_args_tail(p, Qnone, Qnone, Qnone, &@0); $$ = new_args(p, Qnone, Qnone, Qnone, Qnone, $$, &@0); /*% ripper: ripper_new_args(p, Qnil, Qnil, Qnil, Qnil, rb_ary_new_from_args(3, Qnil, Qnil, Qnil)) %*/ } ; f_paren_args : '(' f_args rparen { $$ = $2; /*% ripper: paren!($:2) %*/ SET_LEX_STATE(EXPR_BEG); p->command_start = TRUE; p->ctxt.in_argdef = 0; } ; f_arglist : f_paren_args | { $$ = p->ctxt; p->ctxt.in_kwarg = 1; p->ctxt.in_argdef = 1; SET_LEX_STATE(p->lex.state|EXPR_LABEL); /* force for args */ } f_args term { p->ctxt.in_kwarg = $1.in_kwarg; p->ctxt.in_argdef = 0; $$ = $2; SET_LEX_STATE(EXPR_BEG); p->command_start = TRUE; /*% ripper: get_value($:2); %*/ } ; args_tail : f_kwarg ',' f_kwrest opt_f_block_arg { $$ = new_args_tail(p, $1, $3, $4, &@3); /*% ripper: rb_ary_new_from_args(3, get_value($:1), get_value($:3), get_value($:4)); %*/ } | f_kwarg opt_f_block_arg { $$ = new_args_tail(p, $1, Qnone, $2, &@1); /*% ripper: rb_ary_new_from_args(3, get_value($:1), Qnil, get_value($:2)); %*/ } | f_any_kwrest opt_f_block_arg { $$ = new_args_tail(p, Qnone, $1, $2, &@1); /*% ripper: rb_ary_new_from_args(3, Qnil, get_value($:1), get_value($:2)); %*/ } | f_block_arg { $$ = new_args_tail(p, Qnone, Qnone, $1, &@1); /*% ripper: rb_ary_new_from_args(3, Qnil, Qnil, get_value($:1)); %*/ } | args_forward { add_forwarding_args(p); $$ = new_args_tail(p, Qnone, $1, arg_FWD_BLOCK, &@1); $$->nd_ainfo.forwarding = 1; /*% ripper: rb_ary_new_from_args(3, Qnil, get_value($:1), Qnil); %*/ } ; opt_args_tail : ',' args_tail { $$ = $2; /*% ripper: get_value($:2); %*/ } | /* none */ { $$ = new_args_tail(p, Qnone, Qnone, Qnone, &@0); /*% ripper: rb_ary_new_from_args(3, Qnil, Qnil, Qnil); %*/ } ; f_args : f_arg ',' f_optarg ',' f_rest_arg opt_args_tail { $$ = new_args(p, $1, $3, $5, Qnone, $6, &@$); /*% ripper: ripper_new_args(p, get_value($:1), get_value($:3), get_value($:5), Qnil, get_value($:6)) %*/ } | f_arg ',' f_optarg ',' f_rest_arg ',' f_arg opt_args_tail { $$ = new_args(p, $1, $3, $5, $7, $8, &@$); /*% ripper: ripper_new_args(p, get_value($:1), get_value($:3), get_value($:5), get_value($:7), get_value($:8)) %*/ } | f_arg ',' f_optarg opt_args_tail { $$ = new_args(p, $1, $3, Qnone, Qnone, $4, &@$); /*% ripper: ripper_new_args(p, get_value($:1), get_value($:3), Qnil, Qnil, get_value($:4)) %*/ } | f_arg ',' f_optarg ',' f_arg opt_args_tail { $$ = new_args(p, $1, $3, Qnone, $5, $6, &@$); /*% ripper: ripper_new_args(p, get_value($:1), get_value($:3), Qnil, get_value($:5), get_value($:6)) %*/ } | f_arg ',' f_rest_arg opt_args_tail { $$ = new_args(p, $1, Qnone, $3, Qnone, $4, &@$); /*% ripper: ripper_new_args(p, get_value($:1), Qnil, get_value($:3), Qnil, get_value($:4)) %*/ } | f_arg ',' f_rest_arg ',' f_arg opt_args_tail { $$ = new_args(p, $1, Qnone, $3, $5, $6, &@$); /*% ripper: ripper_new_args(p, get_value($:1), Qnil, get_value($:3), get_value($:5), get_value($:6)) %*/ } | f_arg opt_args_tail { $$ = new_args(p, $1, Qnone, Qnone, Qnone, $2, &@$); /*% ripper: ripper_new_args(p, get_value($:1), Qnil, Qnil, Qnil, get_value($:2)) %*/ } | f_optarg ',' f_rest_arg opt_args_tail { $$ = new_args(p, Qnone, $1, $3, Qnone, $4, &@$); /*% ripper: ripper_new_args(p, Qnil, get_value($:1), get_value($:3), Qnil, get_value($:4)) %*/ } | f_optarg ',' f_rest_arg ',' f_arg opt_args_tail { $$ = new_args(p, Qnone, $1, $3, $5, $6, &@$); /*% ripper: ripper_new_args(p, Qnil, get_value($:1), get_value($:3), get_value($:5), get_value($:6)) %*/ } | f_optarg opt_args_tail { $$ = new_args(p, Qnone, $1, Qnone, Qnone, $2, &@$); /*% ripper: ripper_new_args(p, Qnil, get_value($:1), Qnil, Qnil, get_value($:2)) %*/ } | f_optarg ',' f_arg opt_args_tail { $$ = new_args(p, Qnone, $1, Qnone, $3, $4, &@$); /*% ripper: ripper_new_args(p, Qnil, get_value($:1), Qnil, get_value($:3), get_value($:4)) %*/ } | f_rest_arg opt_args_tail { $$ = new_args(p, Qnone, Qnone, $1, Qnone, $2, &@$); /*% ripper: ripper_new_args(p, Qnil, Qnil, get_value($:1), Qnil, get_value($:2)) %*/ } | f_rest_arg ',' f_arg opt_args_tail { $$ = new_args(p, Qnone, Qnone, $1, $3, $4, &@$); /*% ripper: ripper_new_args(p, Qnil, Qnil, get_value($:1), get_value($:3), get_value($:4)) %*/ } | args_tail { $$ = new_args(p, Qnone, Qnone, Qnone, Qnone, $1, &@$); /*% ripper: ripper_new_args(p, Qnil, Qnil, Qnil, Qnil, get_value($:1)) %*/ } | /* none */ { $$ = new_args_tail(p, Qnone, Qnone, Qnone, &@0); $$ = new_args(p, Qnone, Qnone, Qnone, Qnone, $$, &@0); /*% ripper: ripper_new_args(p, Qnil, Qnil, Qnil, Qnil, rb_ary_new_from_args(3, Qnil, Qnil, Qnil)) %*/ } ; args_forward : tBDOT3 { #ifdef FORWARD_ARGS_WITH_RUBY2_KEYWORDS $$ = 0; #else $$ = idFWD_KWREST; #endif /*% ripper: args_forward! %*/ } ; f_bad_arg : tCONSTANT { static const char mesg[] = "formal argument cannot be a constant"; /*%%%*/ yyerror1(&@1, mesg); /*% %*/ $$ = 0; /*% ripper[error]: param_error!(ERR_MESG(), $:1) %*/ } | tIVAR { static const char mesg[] = "formal argument cannot be an instance variable"; /*%%%*/ yyerror1(&@1, mesg); /*% %*/ $$ = 0; /*% ripper[error]: param_error!(ERR_MESG(), $:1) %*/ } | tGVAR { static const char mesg[] = "formal argument cannot be a global variable"; /*%%%*/ yyerror1(&@1, mesg); /*% %*/ $$ = 0; /*% ripper[error]: param_error!(ERR_MESG(), $:1) %*/ } | tCVAR { static const char mesg[] = "formal argument cannot be a class variable"; /*%%%*/ yyerror1(&@1, mesg); /*% %*/ $$ = 0; /*% ripper[error]: param_error!(ERR_MESG(), $:1) %*/ } ; f_norm_arg : f_bad_arg | tIDENTIFIER { formal_argument(p, $1); p->max_numparam = ORDINAL_PARAM; $$ = $1; /*%%%*/ /*% ripper_formal_argument(p, $1, get_value($:1)); %*/ } ; f_arg_asgn : f_norm_arg { ID id = $1; arg_var(p, id); p->cur_arg = id; $$ = $1; } ; f_arg_item : f_arg_asgn { p->cur_arg = 0; $$ = NEW_ARGS_AUX($1, 1, &NULL_LOC); /*% ripper: get_value($:1) %*/ } | tLPAREN f_margs rparen { ID tid = internal_id(p); YYLTYPE loc; loc.beg_pos = @2.beg_pos; loc.end_pos = @2.beg_pos; arg_var(p, tid); if (dyna_in_block(p)) { $2->nd_value = NEW_DVAR(tid, &loc); } else { $2->nd_value = NEW_LVAR(tid, &loc); } $$ = NEW_ARGS_AUX(tid, 1, &NULL_LOC); $$->nd_next = (NODE *)$2; /*% ripper: mlhs_paren!($:2) %*/ } ; f_arg : f_arg_item /*% ripper[brace]: rb_ary_new3(1, get_value($:1)) %*/ | f_arg ',' f_arg_item { $$ = $1; $$->nd_plen++; $$->nd_next = block_append(p, $$->nd_next, $3->nd_next); rb_discard_node(p, (NODE *)$3); /*% ripper: rb_ary_push(get_value($:1), get_value($:3)) %*/ } ; f_label : tLABEL { arg_var(p, formal_argument(p, $1)); p->cur_arg = $1; p->max_numparam = ORDINAL_PARAM; p->ctxt.in_argdef = 0; $$ = $1; /*%%%*/ /*% ripper_formal_argument(p, $1, get_value($:1)); %*/ } ; f_kw : f_label arg_value { p->cur_arg = 0; p->ctxt.in_argdef = 1; $$ = new_kw_arg(p, assignable(p, $1, $2, &@$), &@$); /*% ripper: rb_assoc_new(ripper_assignable(p, $1, get_value($:1)), get_value($:2)) %*/ } | f_label { p->cur_arg = 0; p->ctxt.in_argdef = 1; $$ = new_kw_arg(p, assignable(p, $1, NODE_SPECIAL_REQUIRED_KEYWORD, &@$), &@$); /*% ripper: rb_assoc_new(ripper_assignable(p, $1, get_value($:1)), 0) %*/ } ; f_block_kw : f_label primary_value { p->ctxt.in_argdef = 1; $$ = new_kw_arg(p, assignable(p, $1, $2, &@$), &@$); /*% ripper: rb_assoc_new(ripper_assignable(p, $1, get_value($:1)), get_value($:2)) %*/ } | f_label { p->ctxt.in_argdef = 1; $$ = new_kw_arg(p, assignable(p, $1, NODE_SPECIAL_REQUIRED_KEYWORD, &@$), &@$); /*% ripper: rb_assoc_new(ripper_assignable(p, $1, get_value($:1)), 0) %*/ } ; f_block_kwarg : f_block_kw { $$ = $1; /*% ripper: rb_ary_new3(1, get_value($:1)) %*/ } | f_block_kwarg ',' f_block_kw { $$ = kwd_append($1, $3); /*% ripper: rb_ary_push(get_value($:1), get_value($:3)) %*/ } ; f_kwarg : f_kw { $$ = $1; /*% ripper: rb_ary_new3(1, get_value($:1)) %*/ } | f_kwarg ',' f_kw { $$ = kwd_append($1, $3); /*% ripper: rb_ary_push(get_value($:1), get_value($:3)) %*/ } ; kwrest_mark : tPOW | tDSTAR ; f_no_kwarg : p_kwnorest { /*% ripper: nokw_param!(Qnil) %*/ } ; f_kwrest : kwrest_mark tIDENTIFIER { arg_var(p, shadowing_lvar(p, $2)); $$ = $2; /*% ripper: kwrest_param!($:2) %*/ } | kwrest_mark { arg_var(p, idFWD_KWREST); $$ = idFWD_KWREST; /*% ripper: kwrest_param!(Qnil) %*/ } ; f_opt : f_arg_asgn f_eq arg_value { p->cur_arg = 0; p->ctxt.in_argdef = 1; $$ = NEW_OPT_ARG(assignable(p, $1, $3, &@$), &@$); /*% ripper: rb_assoc_new(ripper_assignable(p, $1, get_value($:1)), get_value($:3)) %*/ } ; f_block_opt : f_arg_asgn f_eq primary_value { p->cur_arg = 0; p->ctxt.in_argdef = 1; $$ = NEW_OPT_ARG(assignable(p, $1, $3, &@$), &@$); /*% ripper: rb_assoc_new(ripper_assignable(p, $1, get_value($:1)), get_value($:3)) %*/ } ; f_block_optarg : f_block_opt { $$ = $1; /*% ripper: rb_ary_new3(1, get_value($:1)) %*/ } | f_block_optarg ',' f_block_opt { $$ = opt_arg_append($1, $3); /*% ripper: rb_ary_push(get_value($:1), get_value($:3)) %*/ } ; f_optarg : f_opt { $$ = $1; /*% ripper: rb_ary_new3(1, get_value($:1)) %*/ } | f_optarg ',' f_opt { $$ = opt_arg_append($1, $3); /*% ripper: rb_ary_push(get_value($:1), get_value($:3)) %*/ } ; restarg_mark : '*' | tSTAR ; f_rest_arg : restarg_mark tIDENTIFIER { arg_var(p, shadowing_lvar(p, $2)); $$ = $2; /*% ripper: rest_param!($:2) %*/ } | restarg_mark { arg_var(p, idFWD_REST); $$ = idFWD_REST; /*% ripper: rest_param!(Qnil) %*/ } ; blkarg_mark : '&' | tAMPER ; f_block_arg : blkarg_mark tIDENTIFIER { arg_var(p, shadowing_lvar(p, $2)); $$ = $2; /*% ripper: blockarg!($:2) %*/ } | blkarg_mark { arg_var(p, idFWD_BLOCK); $$ = idFWD_BLOCK; /*% ripper: blockarg!(Qnil) %*/ } ; opt_f_block_arg : ',' f_block_arg { $$ = $2; /*% ripper: get_value($:2); %*/ } | none { $$ = Qnull; /*% ripper: Qnil; %*/ } ; singleton : var_ref { value_expr($1); $$ = $1; } | '(' {SET_LEX_STATE(EXPR_BEG);} expr rparen { NODE *expr = last_expr_node($3); switch (nd_type(expr)) { case NODE_STR: case NODE_DSTR: case NODE_XSTR: case NODE_DXSTR: case NODE_DREGX: case NODE_LIT: case NODE_SYM: case NODE_LINE: case NODE_FILE: case NODE_ENCODING: case NODE_INTEGER: case NODE_FLOAT: case NODE_RATIONAL: case NODE_IMAGINARY: case NODE_DSYM: case NODE_LIST: case NODE_ZLIST: yyerror1(&expr->nd_loc, "can't define singleton method for literals"); break; default: value_expr($3); break; } $$ = $3; /*% ripper: paren!($:3) %*/ } ; assoc_list : none | assocs trailer { $$ = $1; /*% ripper: assoclist_from_args!($:1) %*/ } ; assocs : assoc /*% ripper[brace]: rb_ary_new3(1, get_value($:1)) %*/ | assocs ',' assoc { NODE *assocs = $1; NODE *tail = $3; if (!assocs) { assocs = tail; } else if (tail) { if (RNODE_LIST(assocs)->nd_head) { NODE *n = RNODE_LIST(tail)->nd_next; if (!RNODE_LIST(tail)->nd_head && nd_type_p(n, NODE_LIST) && nd_type_p((n = RNODE_LIST(n)->nd_head), NODE_HASH)) { /* DSTAR */ tail = RNODE_HASH(n)->nd_head; } } if (tail) { assocs = list_concat(assocs, tail); } } $$ = assocs; /*% ripper: rb_ary_push(get_value($:1), get_value($:3)) %*/ } ; assoc : arg_value tASSOC arg_value { $$ = list_append(p, NEW_LIST($1, &@$), $3); /*% ripper: assoc_new!($:1, $:3) %*/ } | tLABEL arg_value { $$ = list_append(p, NEW_LIST(NEW_SYM(rb_id2str($1), &@1), &@$), $2); /*% ripper: assoc_new!($:1, $:2) %*/ } | tLABEL { NODE *val = gettable(p, $1, &@$); if (!val) val = NEW_ERROR(&@$); $$ = list_append(p, NEW_LIST(NEW_SYM(rb_id2str($1), &@1), &@$), val); /*% ripper: assoc_new!($:1, Qnil) %*/ } | tSTRING_BEG string_contents tLABEL_END arg_value { YYLTYPE loc = code_loc_gen(&@1, &@3); $$ = list_append(p, NEW_LIST(dsym_node(p, $2, &loc), &loc), $4); /*% ripper: assoc_new!(dyna_symbol!($:2), $:4) %*/ } | tDSTAR arg_value { $$ = list_append(p, NEW_LIST(0, &@$), $2); /*% ripper: assoc_splat!($:2) %*/ } | tDSTAR { forwarding_arg_check(p, idFWD_KWREST, idFWD_ALL, "keyword rest"); $$ = list_append(p, NEW_LIST(0, &@$), NEW_LVAR(idFWD_KWREST, &@$)); /*% ripper: assoc_splat!(Qnil) %*/ } ; operation : tIDENTIFIER | tCONSTANT | tFID ; operation2 : operation | op ; operation3 : tIDENTIFIER | tFID | op ; dot_or_colon : '.' | tCOLON2 ; call_op : '.' | tANDDOT ; call_op2 : call_op | tCOLON2 ; opt_terms : /* none */ | terms ; opt_nl : /* none */ | '\n' ; rparen : opt_nl ')' ; rbracket : opt_nl ']' ; rbrace : opt_nl '}' ; trailer : opt_nl | ',' ; term : ';' {yyerrok;token_flush(p);} | '\n' { @$.end_pos = @$.beg_pos; token_flush(p); } ; terms : term | terms ';' {yyerrok;} ; none : /* none */ { $$ = Qnull; /*%%%*/ /*% set_value(rb_ripper_none); %*/ } ; %% # undef p # undef yylex # undef yylval # define yylval (*p->lval) static int regx_options(struct parser_params*); static int tokadd_string(struct parser_params*,int,int,int,long*,rb_encoding**,rb_encoding**); static void tokaddmbc(struct parser_params *p, int c, rb_encoding *enc); static enum yytokentype parse_string(struct parser_params*,rb_strterm_literal_t*); static enum yytokentype here_document(struct parser_params*,rb_strterm_heredoc_t*); #ifndef RIPPER #define set_parser_s_value(x) (void)(x) #else #define set_parser_s_value(x) (p->s_value = (x)) #endif # define set_yylval_node(x) { \ YYLTYPE _cur_loc; \ rb_parser_set_location(p, &_cur_loc); \ yylval.node = (x); \ set_parser_s_value(STR_NEW(p->lex.ptok, p->lex.pcur-p->lex.ptok)); \ } # define set_yylval_str(x) \ do { \ set_yylval_node(NEW_STR(rb_str_to_parser_string(p, x), &_cur_loc)); \ set_parser_s_value(x); \ } while(0) # define set_yylval_num(x) { \ yylval.num = (x); \ set_parser_s_value(x); \ } # define set_yylval_id(x) (yylval.id = (x)) # define set_yylval_name(x) { \ (yylval.id = (x)); \ set_parser_s_value(ID2SYM(x)); \ } # define yylval_id() (yylval.id) #define set_yylval_noname() set_yylval_id(keyword_nil) #define has_delayed_token(p) (!NIL_P(p->delayed.token)) #ifndef RIPPER #define literal_flush(p, ptr) ((p)->lex.ptok = (ptr)) #define dispatch_scan_event(p, t) parser_dispatch_scan_event(p, t, __LINE__) static bool parser_has_token(struct parser_params *p) { const char *const pcur = p->lex.pcur; const char *const ptok = p->lex.ptok; if (p->keep_tokens && (pcur < ptok)) { rb_bug("lex.pcur < lex.ptok. (line: %d) %"PRIdPTRDIFF"|%"PRIdPTRDIFF"|%"PRIdPTRDIFF"", p->ruby_sourceline, ptok - p->lex.pbeg, pcur - ptok, p->lex.pend - pcur); } return pcur > ptok; } static VALUE code_loc_to_ary(struct parser_params *p, const rb_code_location_t *loc) { VALUE ary = rb_ary_new_from_args(4, INT2NUM(loc->beg_pos.lineno), INT2NUM(loc->beg_pos.column), INT2NUM(loc->end_pos.lineno), INT2NUM(loc->end_pos.column)); rb_obj_freeze(ary); return ary; } static void parser_append_tokens(struct parser_params *p, VALUE str, enum yytokentype t, int line) { VALUE ary; int token_id; ary = rb_ary_new2(4); token_id = p->token_id; rb_ary_push(ary, INT2FIX(token_id)); rb_ary_push(ary, ID2SYM(parser_token2id(p, t))); rb_ary_push(ary, str); rb_ary_push(ary, code_loc_to_ary(p, p->yylloc)); rb_obj_freeze(ary); rb_ary_push(p->tokens, ary); p->token_id++; if (p->debug) { rb_parser_printf(p, "Append tokens (line: %d) %"PRIsVALUE"\n", line, ary); } } static void parser_dispatch_scan_event(struct parser_params *p, enum yytokentype t, int line) { debug_token_line(p, "parser_dispatch_scan_event", line); if (!parser_has_token(p)) return; RUBY_SET_YYLLOC(*p->yylloc); if (p->keep_tokens) { VALUE str = STR_NEW(p->lex.ptok, p->lex.pcur - p->lex.ptok); parser_append_tokens(p, str, t, line); } token_flush(p); } #define dispatch_delayed_token(p, t) parser_dispatch_delayed_token(p, t, __LINE__) static void parser_dispatch_delayed_token(struct parser_params *p, enum yytokentype t, int line) { debug_token_line(p, "parser_dispatch_delayed_token", line); if (!has_delayed_token(p)) return; RUBY_SET_YYLLOC_OF_DELAYED_TOKEN(*p->yylloc); if (p->keep_tokens) { parser_append_tokens(p, p->delayed.token, t, line); } p->delayed.token = Qnil; } #else #define literal_flush(p, ptr) ((void)(ptr)) static int ripper_has_scan_event(struct parser_params *p) { if (p->lex.pcur < p->lex.ptok) rb_raise(rb_eRuntimeError, "lex.pcur < lex.ptok"); return p->lex.pcur > p->lex.ptok; } static VALUE ripper_scan_event_val(struct parser_params *p, enum yytokentype t) { VALUE str = STR_NEW(p->lex.ptok, p->lex.pcur - p->lex.ptok); VALUE rval = ripper_dispatch1(p, ripper_token2eventid(t), str); RUBY_SET_YYLLOC(*p->yylloc); token_flush(p); return rval; } static void ripper_dispatch_scan_event(struct parser_params *p, enum yytokentype t) { if (!ripper_has_scan_event(p)) return; set_parser_s_value(ripper_scan_event_val(p, t)); } #define dispatch_scan_event(p, t) ripper_dispatch_scan_event(p, t) static void ripper_dispatch_delayed_token(struct parser_params *p, enum yytokentype t) { /* save and adjust the location to delayed token for callbacks */ int saved_line = p->ruby_sourceline; const char *saved_tokp = p->lex.ptok; VALUE s_value; if (!has_delayed_token(p)) return; p->ruby_sourceline = p->delayed.beg_line; p->lex.ptok = p->lex.pbeg + p->delayed.beg_col; s_value = ripper_dispatch1(p, ripper_token2eventid(t), p->delayed.token); set_parser_s_value(s_value); p->delayed.token = Qnil; p->ruby_sourceline = saved_line; p->lex.ptok = saved_tokp; } #define dispatch_delayed_token(p, t) ripper_dispatch_delayed_token(p, t) #endif /* RIPPER */ static inline int is_identchar(struct parser_params *p, const char *ptr, const char *MAYBE_UNUSED(ptr_end), rb_encoding *enc) { return rb_enc_isalnum((unsigned char)*ptr, enc) || *ptr == '_' || !ISASCII(*ptr); } static inline int parser_is_identchar(struct parser_params *p) { return !(p)->eofp && is_identchar(p, p->lex.pcur-1, p->lex.pend, p->enc); } static inline int parser_isascii(struct parser_params *p) { return ISASCII(*(p->lex.pcur-1)); } static void token_info_setup(token_info *ptinfo, const char *ptr, const rb_code_location_t *loc) { int column = 1, nonspc = 0, i; for (i = 0; i < loc->beg_pos.column; i++, ptr++) { if (*ptr == '\t') { column = (((column - 1) / TAB_WIDTH) + 1) * TAB_WIDTH; } column++; if (*ptr != ' ' && *ptr != '\t') { nonspc = 1; } } ptinfo->beg = loc->beg_pos; ptinfo->indent = column; ptinfo->nonspc = nonspc; } static void token_info_push(struct parser_params *p, const char *token, const rb_code_location_t *loc) { token_info *ptinfo; if (!p->token_info_enabled) return; ptinfo = ALLOC(token_info); ptinfo->token = token; ptinfo->next = p->token_info; token_info_setup(ptinfo, p->lex.pbeg, loc); p->token_info = ptinfo; } static void token_info_pop(struct parser_params *p, const char *token, const rb_code_location_t *loc) { token_info *ptinfo_beg = p->token_info; if (!ptinfo_beg) return; p->token_info = ptinfo_beg->next; /* indentation check of matched keywords (begin..end, if..end, etc.) */ token_info_warn(p, token, ptinfo_beg, 1, loc); ruby_sized_xfree(ptinfo_beg, sizeof(*ptinfo_beg)); } static void token_info_drop(struct parser_params *p, const char *token, rb_code_position_t beg_pos) { token_info *ptinfo_beg = p->token_info; if (!ptinfo_beg) return; p->token_info = ptinfo_beg->next; if (ptinfo_beg->beg.lineno != beg_pos.lineno || ptinfo_beg->beg.column != beg_pos.column || strcmp(ptinfo_beg->token, token)) { compile_error(p, "token position mismatch: %d:%d:%s expected but %d:%d:%s", beg_pos.lineno, beg_pos.column, token, ptinfo_beg->beg.lineno, ptinfo_beg->beg.column, ptinfo_beg->token); } ruby_sized_xfree(ptinfo_beg, sizeof(*ptinfo_beg)); } static void token_info_warn(struct parser_params *p, const char *token, token_info *ptinfo_beg, int same, const rb_code_location_t *loc) { token_info ptinfo_end_body, *ptinfo_end = &ptinfo_end_body; if (!p->token_info_enabled) return; if (!ptinfo_beg) return; token_info_setup(ptinfo_end, p->lex.pbeg, loc); if (ptinfo_beg->beg.lineno == ptinfo_end->beg.lineno) return; /* ignore one-line block */ if (ptinfo_beg->nonspc || ptinfo_end->nonspc) return; /* ignore keyword in the middle of a line */ if (ptinfo_beg->indent == ptinfo_end->indent) return; /* the indents are matched */ if (!same && ptinfo_beg->indent < ptinfo_end->indent) return; rb_warn3L(ptinfo_end->beg.lineno, "mismatched indentations at '%s' with '%s' at %d", WARN_S(token), WARN_S(ptinfo_beg->token), WARN_I(ptinfo_beg->beg.lineno)); } static int parser_precise_mbclen(struct parser_params *p, const char *ptr) { int len = rb_enc_precise_mbclen(ptr, p->lex.pend, p->enc); if (!MBCLEN_CHARFOUND_P(len)) { compile_error(p, "invalid multibyte char (%s)", rb_enc_name(p->enc)); return -1; } return len; } #ifndef RIPPER static inline void parser_show_error_line(struct parser_params *p, const YYLTYPE *yylloc) { rb_parser_string_t *str; int lineno = p->ruby_sourceline; if (!yylloc) { return; } else if (yylloc->beg_pos.lineno == lineno) { str = p->lex.lastline; } else { return; } ruby_show_error_line(p, p->error_buffer, yylloc, lineno, str); } static int parser_yyerror(struct parser_params *p, const rb_code_location_t *yylloc, const char *msg) { #if 0 YYLTYPE current; if (!yylloc) { yylloc = RUBY_SET_YYLLOC(current); } else if ((p->ruby_sourceline != yylloc->beg_pos.lineno && p->ruby_sourceline != yylloc->end_pos.lineno)) { yylloc = 0; } #endif parser_compile_error(p, yylloc, "%s", msg); parser_show_error_line(p, yylloc); return 0; } static int parser_yyerror0(struct parser_params *p, const char *msg) { YYLTYPE current; return parser_yyerror(p, RUBY_SET_YYLLOC(current), msg); } void ruby_show_error_line(struct parser_params *p, VALUE errbuf, const YYLTYPE *yylloc, int lineno, rb_parser_string_t *str) { VALUE mesg; const int max_line_margin = 30; const char *ptr, *ptr_end, *pt, *pb; const char *pre = "", *post = "", *pend; const char *code = "", *caret = ""; const char *lim; const char *const pbeg = PARSER_STRING_PTR(str); char *buf; long len; int i; if (!yylloc) return; pend = rb_parser_string_end(str); if (pend > pbeg && pend[-1] == '\n') { if (--pend > pbeg && pend[-1] == '\r') --pend; } pt = pend; if (lineno == yylloc->end_pos.lineno && (pend - pbeg) > yylloc->end_pos.column) { pt = pbeg + yylloc->end_pos.column; } ptr = ptr_end = pt; lim = ptr - pbeg > max_line_margin ? ptr - max_line_margin : pbeg; while ((lim < ptr) && (*(ptr-1) != '\n')) ptr--; lim = pend - ptr_end > max_line_margin ? ptr_end + max_line_margin : pend; while ((ptr_end < lim) && (*ptr_end != '\n') && (*ptr_end != '\r')) ptr_end++; len = ptr_end - ptr; if (len > 4) { if (ptr > pbeg) { ptr = rb_enc_prev_char(pbeg, ptr, pt, rb_parser_str_get_encoding(str)); if (ptr > pbeg) pre = "..."; } if (ptr_end < pend) { ptr_end = rb_enc_prev_char(pt, ptr_end, pend, rb_parser_str_get_encoding(str)); if (ptr_end < pend) post = "..."; } } pb = pbeg; if (lineno == yylloc->beg_pos.lineno) { pb += yylloc->beg_pos.column; if (pb > pt) pb = pt; } if (pb < ptr) pb = ptr; if (len <= 4 && yylloc->beg_pos.lineno == yylloc->end_pos.lineno) { return; } if (RTEST(errbuf)) { mesg = rb_attr_get(errbuf, idMesg); if (RSTRING_LEN(mesg) > 0 && *(RSTRING_END(mesg)-1) != '\n') rb_str_cat_cstr(mesg, "\n"); } else { mesg = rb_enc_str_new(0, 0, rb_parser_str_get_encoding(str)); } if (!errbuf && rb_stderr_tty_p()) { #define CSI_BEGIN "\033[" #define CSI_SGR "m" rb_str_catf(mesg, CSI_BEGIN""CSI_SGR"%s" /* pre */ CSI_BEGIN"1"CSI_SGR"%.*s" CSI_BEGIN"1;4"CSI_SGR"%.*s" CSI_BEGIN";1"CSI_SGR"%.*s" CSI_BEGIN""CSI_SGR"%s" /* post */ "\n", pre, (int)(pb - ptr), ptr, (int)(pt - pb), pb, (int)(ptr_end - pt), pt, post); } else { char *p2; len = ptr_end - ptr; lim = pt < pend ? pt : pend; i = (int)(lim - ptr); buf = ALLOCA_N(char, i+2); code = ptr; caret = p2 = buf; if (ptr <= pb) { while (ptr < pb) { *p2++ = *ptr++ == '\t' ? '\t' : ' '; } *p2++ = '^'; ptr++; } if (lim > ptr) { memset(p2, '~', (lim - ptr)); p2 += (lim - ptr); } *p2 = '\0'; rb_str_catf(mesg, "%s%.*s%s\n""%s%s\n", pre, (int)len, code, post, pre, caret); } if (!errbuf) rb_write_error_str(mesg); } #else static int parser_yyerror(struct parser_params *p, const YYLTYPE *yylloc, const char *msg) { const char *pcur = 0, *ptok = 0; if (p->ruby_sourceline == yylloc->beg_pos.lineno && p->ruby_sourceline == yylloc->end_pos.lineno) { pcur = p->lex.pcur; ptok = p->lex.ptok; p->lex.ptok = p->lex.pbeg + yylloc->beg_pos.column; p->lex.pcur = p->lex.pbeg + yylloc->end_pos.column; } parser_yyerror0(p, msg); if (pcur) { p->lex.ptok = ptok; p->lex.pcur = pcur; } return 0; } static int parser_yyerror0(struct parser_params *p, const char *msg) { dispatch1(parse_error, STR_NEW2(msg)); ripper_error(p); return 0; } static inline void parser_show_error_line(struct parser_params *p, const YYLTYPE *yylloc) { } #endif /* !RIPPER */ static int vtable_size(const struct vtable *tbl) { if (!DVARS_TERMINAL_P(tbl)) { return tbl->pos; } else { return 0; } } static struct vtable * vtable_alloc_gen(struct parser_params *p, int line, struct vtable *prev) { struct vtable *tbl = ALLOC(struct vtable); tbl->pos = 0; tbl->capa = 8; tbl->tbl = ALLOC_N(ID, tbl->capa); tbl->prev = prev; #ifndef RIPPER if (p->debug) { rb_parser_printf(p, "vtable_alloc:%d: %p\n", line, (void *)tbl); } #endif return tbl; } #define vtable_alloc(prev) vtable_alloc_gen(p, __LINE__, prev) static void vtable_free_gen(struct parser_params *p, int line, const char *name, struct vtable *tbl) { #ifndef RIPPER if (p->debug) { rb_parser_printf(p, "vtable_free:%d: %s(%p)\n", line, name, (void *)tbl); } #endif if (!DVARS_TERMINAL_P(tbl)) { if (tbl->tbl) { ruby_sized_xfree(tbl->tbl, tbl->capa * sizeof(ID)); } ruby_sized_xfree(tbl, sizeof(*tbl)); } } #define vtable_free(tbl) vtable_free_gen(p, __LINE__, #tbl, tbl) static void vtable_add_gen(struct parser_params *p, int line, const char *name, struct vtable *tbl, ID id) { #ifndef RIPPER if (p->debug) { rb_parser_printf(p, "vtable_add:%d: %s(%p), %s\n", line, name, (void *)tbl, rb_id2name(id)); } #endif if (DVARS_TERMINAL_P(tbl)) { rb_parser_fatal(p, "vtable_add: vtable is not allocated (%p)", (void *)tbl); return; } if (tbl->pos == tbl->capa) { tbl->capa = tbl->capa * 2; SIZED_REALLOC_N(tbl->tbl, ID, tbl->capa, tbl->pos); } tbl->tbl[tbl->pos++] = id; } #define vtable_add(tbl, id) vtable_add_gen(p, __LINE__, #tbl, tbl, id) static void vtable_pop_gen(struct parser_params *p, int line, const char *name, struct vtable *tbl, int n) { if (p->debug) { rb_parser_printf(p, "vtable_pop:%d: %s(%p), %d\n", line, name, (void *)tbl, n); } if (tbl->pos < n) { rb_parser_fatal(p, "vtable_pop: unreachable (%d < %d)", tbl->pos, n); return; } tbl->pos -= n; } #define vtable_pop(tbl, n) vtable_pop_gen(p, __LINE__, #tbl, tbl, n) static int vtable_included(const struct vtable * tbl, ID id) { int i; if (!DVARS_TERMINAL_P(tbl)) { for (i = 0; i < tbl->pos; i++) { if (tbl->tbl[i] == id) { return i+1; } } } return 0; } static void parser_prepare(struct parser_params *p); static int e_option_supplied(struct parser_params *p) { return strcmp(p->ruby_sourcefile, "-e") == 0; } #ifndef RIPPER static NODE *parser_append_options(struct parser_params *p, NODE *node); static VALUE yycompile0(VALUE arg) { int n; NODE *tree; struct parser_params *p = (struct parser_params *)arg; int cov = FALSE; if (!compile_for_eval && !NIL_P(p->ruby_sourcefile_string)) { if (p->debug_lines && p->ruby_sourceline > 0) { VALUE str = rb_default_rs; n = p->ruby_sourceline; do { rb_ary_push(p->debug_lines, str); } while (--n); } if (!e_option_supplied(p)) { cov = TRUE; } } if (p->debug_lines) { RB_OBJ_WRITE(p->ast, &p->ast->body.script_lines, p->debug_lines); } parser_prepare(p); #define RUBY_DTRACE_PARSE_HOOK(name) \ if (RUBY_DTRACE_PARSE_##name##_ENABLED()) { \ RUBY_DTRACE_PARSE_##name(p->ruby_sourcefile, p->ruby_sourceline); \ } RUBY_DTRACE_PARSE_HOOK(BEGIN); n = yyparse(p); RUBY_DTRACE_PARSE_HOOK(END); p->debug_lines = 0; xfree(p->lex.strterm); p->lex.strterm = 0; p->lex.pcur = p->lex.pbeg = p->lex.pend = 0; if (n || p->error_p) { VALUE mesg = p->error_buffer; if (!mesg) { mesg = syntax_error_new(); } if (!p->error_tolerant) { rb_set_errinfo(mesg); return FALSE; } } tree = p->eval_tree; if (!tree) { tree = NEW_NIL(&NULL_LOC); } else { VALUE tokens = p->tokens; NODE *prelude; NODE *body = parser_append_options(p, RNODE_SCOPE(tree)->nd_body); prelude = block_append(p, p->eval_tree_begin, body); RNODE_SCOPE(tree)->nd_body = prelude; p->ast->body.frozen_string_literal = p->frozen_string_literal; p->ast->body.coverage_enabled = cov; if (p->keep_tokens) { rb_obj_freeze(tokens); rb_ast_set_tokens(p->ast, tokens); } } p->ast->body.root = tree; if (!p->ast->body.script_lines) p->ast->body.script_lines = INT2FIX(p->line_count); return TRUE; } static rb_ast_t * yycompile(struct parser_params *p, VALUE fname, int line) { rb_ast_t *ast; if (NIL_P(fname)) { p->ruby_sourcefile_string = Qnil; p->ruby_sourcefile = "(none)"; } else { p->ruby_sourcefile_string = rb_fstring(fname); p->ruby_sourcefile = StringValueCStr(fname); } p->ruby_sourceline = line - 1; p->lvtbl = NULL; p->ast = ast = rb_ast_new(); compile_callback(yycompile0, (VALUE)p); p->ast = 0; while (p->lvtbl) { local_pop(p); } return ast; } #endif /* !RIPPER */ static rb_encoding * must_be_ascii_compatible(struct parser_params *p, VALUE s) { rb_encoding *enc = rb_enc_get(s); if (!rb_enc_asciicompat(enc)) { rb_raise(rb_eArgError, "invalid source encoding"); } return enc; } static VALUE lex_get_str(struct parser_params *p, VALUE s) { char *beg, *end, *start; long len; beg = RSTRING_PTR(s); len = RSTRING_LEN(s); start = beg; if (p->lex.gets_.ptr) { if (len == p->lex.gets_.ptr) return Qnil; beg += p->lex.gets_.ptr; len -= p->lex.gets_.ptr; } end = memchr(beg, '\n', len); if (end) len = ++end - beg; p->lex.gets_.ptr += len; return rb_str_subseq(s, beg - start, len); } static rb_parser_string_t * lex_getline(struct parser_params *p) { rb_parser_string_t *str; VALUE line = (*p->lex.gets)(p, p->lex.input); if (NIL_P(line)) return 0; must_be_ascii_compatible(p, line); p->line_count++; str = rb_str_to_parser_string(p, line); string_buffer_append(p, str); return str; } #ifndef RIPPER static rb_ast_t* parser_compile_string(rb_parser_t *p, VALUE fname, VALUE s, int line) { p->lex.gets = lex_get_str; p->lex.gets_.ptr = 0; p->lex.input = rb_str_new_frozen(s); p->lex.pbeg = p->lex.pcur = p->lex.pend = 0; return yycompile(p, fname, line); } rb_ast_t* rb_ruby_parser_compile_string_path(rb_parser_t *p, VALUE f, VALUE s, int line) { must_be_ascii_compatible(p, s); return parser_compile_string(p, f, s, line); } rb_ast_t* rb_ruby_parser_compile_string(rb_parser_t *p, const char *f, VALUE s, int line) { return rb_ruby_parser_compile_string_path(p, rb_filesystem_str_new_cstr(f), s, line); } static VALUE lex_io_gets(struct parser_params *p, VALUE io) { return rb_io_gets_internal(io); } rb_ast_t* rb_ruby_parser_compile_file_path(rb_parser_t *p, VALUE fname, VALUE file, int start) { p->lex.gets = lex_io_gets; p->lex.input = file; p->lex.pbeg = p->lex.pcur = p->lex.pend = 0; return yycompile(p, fname, start); } static VALUE lex_generic_gets(struct parser_params *p, VALUE input) { return (*p->lex.gets_.call)(input, p->line_count); } rb_ast_t* rb_ruby_parser_compile_generic(rb_parser_t *p, VALUE (*lex_gets)(VALUE, int), VALUE fname, VALUE input, int start) { p->lex.gets = lex_generic_gets; p->lex.gets_.call = lex_gets; p->lex.input = input; p->lex.pbeg = p->lex.pcur = p->lex.pend = 0; return yycompile(p, fname, start); } #endif /* !RIPPER */ #define STR_FUNC_ESCAPE 0x01 #define STR_FUNC_EXPAND 0x02 #define STR_FUNC_REGEXP 0x04 #define STR_FUNC_QWORDS 0x08 #define STR_FUNC_SYMBOL 0x10 #define STR_FUNC_INDENT 0x20 #define STR_FUNC_LABEL 0x40 #define STR_FUNC_LIST 0x4000 #define STR_FUNC_TERM 0x8000 enum string_type { str_label = STR_FUNC_LABEL, str_squote = (0), str_dquote = (STR_FUNC_EXPAND), str_xquote = (STR_FUNC_EXPAND), str_regexp = (STR_FUNC_REGEXP|STR_FUNC_ESCAPE|STR_FUNC_EXPAND), str_sword = (STR_FUNC_QWORDS|STR_FUNC_LIST), str_dword = (STR_FUNC_QWORDS|STR_FUNC_EXPAND|STR_FUNC_LIST), str_ssym = (STR_FUNC_SYMBOL), str_dsym = (STR_FUNC_SYMBOL|STR_FUNC_EXPAND) }; static VALUE parser_str_new(struct parser_params *p, const char *ptr, long len, rb_encoding *enc, int func, rb_encoding *enc0) { VALUE str; str = rb_enc_str_new(ptr, len, enc); if (!(func & STR_FUNC_REGEXP) && rb_enc_asciicompat(enc)) { if (is_ascii_string(str)) { } else if (rb_is_usascii_enc((void *)enc0) && enc != rb_utf8_encoding()) { rb_enc_associate(str, rb_ascii8bit_encoding()); } } return str; } static int strterm_is_heredoc(rb_strterm_t *strterm) { return strterm->flags & STRTERM_HEREDOC; } static rb_strterm_t * new_strterm(struct parser_params *p, int func, int term, int paren) { rb_strterm_t *strterm = ZALLOC(rb_strterm_t); strterm->u.literal.func = func; strterm->u.literal.term = term; strterm->u.literal.paren = paren; return strterm; } static rb_strterm_t * new_heredoc(struct parser_params *p) { rb_strterm_t *strterm = ZALLOC(rb_strterm_t); strterm->flags |= STRTERM_HEREDOC; return strterm; } #define peek(p,c) peek_n(p, (c), 0) #define peek_n(p,c,n) (!lex_eol_n_p(p, n) && (c) == (unsigned char)(p)->lex.pcur[n]) #define peekc(p) peekc_n(p, 0) #define peekc_n(p,n) (lex_eol_n_p(p, n) ? -1 : (unsigned char)(p)->lex.pcur[n]) static void add_delayed_token(struct parser_params *p, const char *tok, const char *end, int line) { #ifndef RIPPER debug_token_line(p, "add_delayed_token", line); #endif if (tok < end) { if (has_delayed_token(p)) { bool next_line = end_with_newline_p(p, p->delayed.token); int end_line = (next_line ? 1 : 0) + p->delayed.end_line; int end_col = (next_line ? 0 : p->delayed.end_col); if (end_line != p->ruby_sourceline || end_col != tok - p->lex.pbeg) { dispatch_delayed_token(p, tSTRING_CONTENT); } } if (!has_delayed_token(p)) { p->delayed.token = rb_str_buf_new(end - tok); rb_enc_associate(p->delayed.token, p->enc); p->delayed.beg_line = p->ruby_sourceline; p->delayed.beg_col = rb_long2int(tok - p->lex.pbeg); } rb_str_buf_cat(p->delayed.token, tok, end - tok); p->delayed.end_line = p->ruby_sourceline; p->delayed.end_col = rb_long2int(end - p->lex.pbeg); p->lex.ptok = end; } } static void set_lastline(struct parser_params *p, rb_parser_string_t *str) { p->lex.pbeg = p->lex.pcur = PARSER_STRING_PTR(str); p->lex.pend = p->lex.pcur + PARSER_STRING_LEN(str); p->lex.lastline = str; } static int nextline(struct parser_params *p, int set_encoding) { rb_parser_string_t *str = p->lex.nextline; p->lex.nextline = 0; if (!str) { if (p->eofp) return -1; if (!lex_eol_ptr_p(p, p->lex.pbeg) && *(p->lex.pend-1) != '\n') { goto end_of_input; } if (!p->lex.input || !(str = lex_getline(p))) { end_of_input: p->eofp = 1; lex_goto_eol(p); return -1; } #ifndef RIPPER if (p->debug_lines) { VALUE v = rb_str_new_parser_string(str); if (set_encoding) rb_enc_associate(v, p->enc); rb_ary_push(p->debug_lines, v); } #endif p->cr_seen = FALSE; } else if (str == AFTER_HEREDOC_WITHOUT_TERMINTOR) { /* after here-document without terminator */ goto end_of_input; } add_delayed_token(p, p->lex.ptok, p->lex.pend, __LINE__); if (p->heredoc_end > 0) { p->ruby_sourceline = p->heredoc_end; p->heredoc_end = 0; } p->ruby_sourceline++; set_lastline(p, str); token_flush(p); return 0; } static int parser_cr(struct parser_params *p, int c) { if (peek(p, '\n')) { p->lex.pcur++; c = '\n'; } return c; } static inline int nextc0(struct parser_params *p, int set_encoding) { int c; if (UNLIKELY(lex_eol_p(p) || p->eofp || p->lex.nextline > AFTER_HEREDOC_WITHOUT_TERMINTOR)) { if (nextline(p, set_encoding)) return -1; } c = (unsigned char)*p->lex.pcur++; if (UNLIKELY(c == '\r')) { c = parser_cr(p, c); } return c; } #define nextc(p) nextc0(p, TRUE) static void pushback(struct parser_params *p, int c) { if (c == -1) return; p->eofp = 0; p->lex.pcur--; if (p->lex.pcur > p->lex.pbeg && p->lex.pcur[0] == '\n' && p->lex.pcur[-1] == '\r') { p->lex.pcur--; } } #define was_bol(p) ((p)->lex.pcur == (p)->lex.pbeg + 1) #define tokfix(p) ((p)->tokenbuf[(p)->tokidx]='\0') #define tok(p) (p)->tokenbuf #define toklen(p) (p)->tokidx static int looking_at_eol_p(struct parser_params *p) { const char *ptr = p->lex.pcur; while (!lex_eol_ptr_p(p, ptr)) { int c = (unsigned char)*ptr++; int eol = (c == '\n' || c == '#'); if (eol || !ISSPACE(c)) { return eol; } } return TRUE; } static char* newtok(struct parser_params *p) { p->tokidx = 0; if (!p->tokenbuf) { p->toksiz = 60; p->tokenbuf = ALLOC_N(char, 60); } if (p->toksiz > 4096) { p->toksiz = 60; REALLOC_N(p->tokenbuf, char, 60); } return p->tokenbuf; } static char * tokspace(struct parser_params *p, int n) { p->tokidx += n; if (p->tokidx >= p->toksiz) { do {p->toksiz *= 2;} while (p->toksiz < p->tokidx); REALLOC_N(p->tokenbuf, char, p->toksiz); } return &p->tokenbuf[p->tokidx-n]; } static void tokadd(struct parser_params *p, int c) { p->tokenbuf[p->tokidx++] = (char)c; if (p->tokidx >= p->toksiz) { p->toksiz *= 2; REALLOC_N(p->tokenbuf, char, p->toksiz); } } static int tok_hex(struct parser_params *p, size_t *numlen) { int c; c = (int)ruby_scan_hex(p->lex.pcur, 2, numlen); if (!*numlen) { yyerror0("invalid hex escape"); dispatch_scan_event(p, tSTRING_CONTENT); return 0; } p->lex.pcur += *numlen; return c; } #define tokcopy(p, n) memcpy(tokspace(p, n), (p)->lex.pcur - (n), (n)) static int escaped_control_code(int c) { int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; case '\v': c2 = 'v'; break; case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } return c2; } #define WARN_SPACE_CHAR(c, prefix) \ rb_warn1("invalid character syntax; use "prefix"\\%c", WARN_I(c2)) static int tokadd_codepoint(struct parser_params *p, rb_encoding **encp, int regexp_literal, int wide) { size_t numlen; int codepoint = (int)ruby_scan_hex(p->lex.pcur, wide ? p->lex.pend - p->lex.pcur : 4, &numlen); p->lex.pcur += numlen; if (p->lex.strterm == NULL || strterm_is_heredoc(p->lex.strterm) || (p->lex.strterm->u.literal.func != str_regexp)) { if (wide ? (numlen == 0 || numlen > 6) : (numlen < 4)) { literal_flush(p, p->lex.pcur); yyerror0("invalid Unicode escape"); return wide && numlen > 0; } if (codepoint > 0x10ffff) { literal_flush(p, p->lex.pcur); yyerror0("invalid Unicode codepoint (too large)"); return wide; } if ((codepoint & 0xfffff800) == 0xd800) { literal_flush(p, p->lex.pcur); yyerror0("invalid Unicode codepoint"); return wide; } } if (regexp_literal) { tokcopy(p, (int)numlen); } else if (codepoint >= 0x80) { rb_encoding *utf8 = rb_utf8_encoding(); if (*encp && utf8 != *encp) { YYLTYPE loc = RUBY_INIT_YYLLOC(); compile_error(p, "UTF-8 mixed within %s source", rb_enc_name(*encp)); parser_show_error_line(p, &loc); return wide; } *encp = utf8; tokaddmbc(p, codepoint, *encp); } else { tokadd(p, codepoint); } return TRUE; } static int tokadd_mbchar(struct parser_params *p, int c); static int tokskip_mbchar(struct parser_params *p) { int len = parser_precise_mbclen(p, p->lex.pcur-1); if (len > 0) { p->lex.pcur += len - 1; } return len; } /* return value is for ?\u3042 */ static void tokadd_utf8(struct parser_params *p, rb_encoding **encp, int term, int symbol_literal, int regexp_literal) { /* * If `term` is not -1, then we allow multiple codepoints in \u{} * upto `term` byte, otherwise we're parsing a character literal. * And then add the codepoints to the current token. */ static const char multiple_codepoints[] = "Multiple codepoints at single character literal"; const int open_brace = '{', close_brace = '}'; if (regexp_literal) { tokadd(p, '\\'); tokadd(p, 'u'); } if (peek(p, open_brace)) { /* handle \u{...} form */ if (regexp_literal && p->lex.strterm->u.literal.func == str_regexp) { /* * Skip parsing validation code and copy bytes as-is until term or * closing brace, in order to correctly handle extended regexps where * invalid unicode escapes are allowed in comments. The regexp parser * does its own validation and will catch any issues. */ tokadd(p, open_brace); while (!lex_eol_ptr_p(p, ++p->lex.pcur)) { int c = peekc(p); if (c == close_brace) { tokadd(p, c); ++p->lex.pcur; break; } else if (c == term) { break; } if (c == '\\' && !lex_eol_n_p(p, 1)) { tokadd(p, c); c = *++p->lex.pcur; } tokadd_mbchar(p, c); } } else { const char *second = NULL; int c, last = nextc(p); if (lex_eol_p(p)) goto unterminated; while (ISSPACE(c = peekc(p)) && !lex_eol_ptr_p(p, ++p->lex.pcur)); while (c != close_brace) { if (c == term) goto unterminated; if (second == multiple_codepoints) second = p->lex.pcur; if (regexp_literal) tokadd(p, last); if (!tokadd_codepoint(p, encp, regexp_literal, TRUE)) { break; } while (ISSPACE(c = peekc(p))) { if (lex_eol_ptr_p(p, ++p->lex.pcur)) goto unterminated; last = c; } if (term == -1 && !second) second = multiple_codepoints; } if (c != close_brace) { unterminated: token_flush(p); yyerror0("unterminated Unicode escape"); return; } if (second && second != multiple_codepoints) { const char *pcur = p->lex.pcur; p->lex.pcur = second; dispatch_scan_event(p, tSTRING_CONTENT); token_flush(p); p->lex.pcur = pcur; yyerror0(multiple_codepoints); token_flush(p); } if (regexp_literal) tokadd(p, close_brace); nextc(p); } } else { /* handle \uxxxx form */ if (!tokadd_codepoint(p, encp, regexp_literal, FALSE)) { token_flush(p); return; } } } #define ESCAPE_CONTROL 1 #define ESCAPE_META 2 static int read_escape(struct parser_params *p, int flags) { int c; size_t numlen; switch (c = nextc(p)) { case '\\': /* Backslash */ return c; case 'n': /* newline */ return '\n'; case 't': /* horizontal tab */ return '\t'; case 'r': /* carriage-return */ return '\r'; case 'f': /* form-feed */ return '\f'; case 'v': /* vertical tab */ return '\13'; case 'a': /* alarm(bell) */ return '\007'; case 'e': /* escape */ return 033; case '0': case '1': case '2': case '3': /* octal constant */ case '4': case '5': case '6': case '7': pushback(p, c); c = (int)ruby_scan_oct(p->lex.pcur, 3, &numlen); p->lex.pcur += numlen; return c; case 'x': /* hex constant */ c = tok_hex(p, &numlen); if (numlen == 0) return 0; return c; case 'b': /* backspace */ return '\010'; case 's': /* space */ return ' '; case 'M': if (flags & ESCAPE_META) goto eof; if ((c = nextc(p)) != '-') { goto eof; } if ((c = nextc(p)) == '\\') { switch (peekc(p)) { case 'u': case 'U': nextc(p); goto eof; } return read_escape(p, flags|ESCAPE_META) | 0x80; } else if (c == -1 || !ISASCII(c)) goto eof; else { int c2 = escaped_control_code(c); if (c2) { if (ISCNTRL(c) || !(flags & ESCAPE_CONTROL)) { WARN_SPACE_CHAR(c2, "\\M-"); } else { WARN_SPACE_CHAR(c2, "\\C-\\M-"); } } else if (ISCNTRL(c)) goto eof; return ((c & 0xff) | 0x80); } case 'C': if ((c = nextc(p)) != '-') { goto eof; } case 'c': if (flags & ESCAPE_CONTROL) goto eof; if ((c = nextc(p))== '\\') { switch (peekc(p)) { case 'u': case 'U': nextc(p); goto eof; } c = read_escape(p, flags|ESCAPE_CONTROL); } else if (c == '?') return 0177; else if (c == -1) goto eof; else if (!ISASCII(c)) { tokskip_mbchar(p); goto eof; } else { int c2 = escaped_control_code(c); if (c2) { if (ISCNTRL(c)) { if (flags & ESCAPE_META) { WARN_SPACE_CHAR(c2, "\\M-"); } else { WARN_SPACE_CHAR(c2, ""); } } else { if (flags & ESCAPE_META) { WARN_SPACE_CHAR(c2, "\\M-\\C-"); } else { WARN_SPACE_CHAR(c2, "\\C-"); } } } else if (ISCNTRL(c)) goto eof; } return c & 0x9f; eof: case -1: yyerror0("Invalid escape character syntax"); dispatch_scan_event(p, tSTRING_CONTENT); return '\0'; default: return c; } } static void tokaddmbc(struct parser_params *p, int c, rb_encoding *enc) { int len = rb_enc_codelen(c, enc); rb_enc_mbcput(c, tokspace(p, len), enc); } static int tokadd_escape(struct parser_params *p) { int c; size_t numlen; switch (c = nextc(p)) { case '\n': return 0; /* just ignore */ case '0': case '1': case '2': case '3': /* octal constant */ case '4': case '5': case '6': case '7': { ruby_scan_oct(--p->lex.pcur, 3, &numlen); if (numlen == 0) goto eof; p->lex.pcur += numlen; tokcopy(p, (int)numlen + 1); } return 0; case 'x': /* hex constant */ { tok_hex(p, &numlen); if (numlen == 0) return -1; tokcopy(p, (int)numlen + 2); } return 0; eof: case -1: yyerror0("Invalid escape character syntax"); token_flush(p); return -1; default: tokadd(p, '\\'); tokadd(p, c); } return 0; } static int regx_options(struct parser_params *p) { int kcode = 0; int kopt = 0; int options = 0; int c, opt, kc; newtok(p); while (c = nextc(p), ISALPHA(c)) { if (c == 'o') { options |= RE_OPTION_ONCE; } else if (rb_char_to_option_kcode(c, &opt, &kc)) { if (kc >= 0) { if (kc != rb_ascii8bit_encindex()) kcode = c; kopt = opt; } else { options |= opt; } } else { tokadd(p, c); } } options |= kopt; pushback(p, c); if (toklen(p)) { YYLTYPE loc = RUBY_INIT_YYLLOC(); tokfix(p); compile_error(p, "unknown regexp option%s - %*s", toklen(p) > 1 ? "s" : "", toklen(p), tok(p)); parser_show_error_line(p, &loc); } return options | RE_OPTION_ENCODING(kcode); } static int tokadd_mbchar(struct parser_params *p, int c) { int len = parser_precise_mbclen(p, p->lex.pcur-1); if (len < 0) return -1; tokadd(p, c); p->lex.pcur += --len; if (len > 0) tokcopy(p, len); return c; } static inline int simple_re_meta(int c) { switch (c) { case '$': case '*': case '+': case '.': case '?': case '^': case '|': case ')': case ']': case '}': case '>': return TRUE; default: return FALSE; } } static int parser_update_heredoc_indent(struct parser_params *p, int c) { if (p->heredoc_line_indent == -1) { if (c == '\n') p->heredoc_line_indent = 0; } else { if (c == ' ') { p->heredoc_line_indent++; return TRUE; } else if (c == '\t') { int w = (p->heredoc_line_indent / TAB_WIDTH) + 1; p->heredoc_line_indent = w * TAB_WIDTH; return TRUE; } else if (c != '\n') { if (p->heredoc_indent > p->heredoc_line_indent) { p->heredoc_indent = p->heredoc_line_indent; } p->heredoc_line_indent = -1; } } return FALSE; } static void parser_mixed_error(struct parser_params *p, rb_encoding *enc1, rb_encoding *enc2) { YYLTYPE loc = RUBY_INIT_YYLLOC(); const char *n1 = rb_enc_name(enc1), *n2 = rb_enc_name(enc2); compile_error(p, "%s mixed within %s source", n1, n2); parser_show_error_line(p, &loc); } static void parser_mixed_escape(struct parser_params *p, const char *beg, rb_encoding *enc1, rb_encoding *enc2) { const char *pos = p->lex.pcur; p->lex.pcur = beg; parser_mixed_error(p, enc1, enc2); p->lex.pcur = pos; } static inline char nibble_char_upper(unsigned int c) { c &= 0xf; return c + (c < 10 ? '0' : 'A' - 10); } static int tokadd_string(struct parser_params *p, int func, int term, int paren, long *nest, rb_encoding **encp, rb_encoding **enc) { int c; bool erred = false; #ifdef RIPPER const int heredoc_end = (p->heredoc_end ? p->heredoc_end + 1 : 0); int top_of_line = FALSE; #endif #define mixed_error(enc1, enc2) \ (void)(erred || (parser_mixed_error(p, enc1, enc2), erred = true)) #define mixed_escape(beg, enc1, enc2) \ (void)(erred || (parser_mixed_escape(p, beg, enc1, enc2), erred = true)) while ((c = nextc(p)) != -1) { if (p->heredoc_indent > 0) { parser_update_heredoc_indent(p, c); } #ifdef RIPPER if (top_of_line && heredoc_end == p->ruby_sourceline) { pushback(p, c); break; } #endif if (paren && c == paren) { ++*nest; } else if (c == term) { if (!nest || !*nest) { pushback(p, c); break; } --*nest; } else if ((func & STR_FUNC_EXPAND) && c == '#' && !lex_eol_p(p)) { unsigned char c2 = *p->lex.pcur; if (c2 == '$' || c2 == '@' || c2 == '{') { pushback(p, c); break; } } else if (c == '\\') { c = nextc(p); switch (c) { case '\n': if (func & STR_FUNC_QWORDS) break; if (func & STR_FUNC_EXPAND) { if (!(func & STR_FUNC_INDENT) || (p->heredoc_indent < 0)) continue; if (c == term) { c = '\\'; goto terminate; } } tokadd(p, '\\'); break; case '\\': if (func & STR_FUNC_ESCAPE) tokadd(p, c); break; case 'u': if ((func & STR_FUNC_EXPAND) == 0) { tokadd(p, '\\'); break; } tokadd_utf8(p, enc, term, func & STR_FUNC_SYMBOL, func & STR_FUNC_REGEXP); continue; default: if (c == -1) return -1; if (!ISASCII(c)) { if ((func & STR_FUNC_EXPAND) == 0) tokadd(p, '\\'); goto non_ascii; } if (func & STR_FUNC_REGEXP) { switch (c) { case 'c': case 'C': case 'M': { pushback(p, c); c = read_escape(p, 0); char *t = tokspace(p, rb_strlen_lit("\\x00")); *t++ = '\\'; *t++ = 'x'; *t++ = nibble_char_upper(c >> 4); *t++ = nibble_char_upper(c); continue; } } if (c == term && !simple_re_meta(c)) { tokadd(p, c); continue; } pushback(p, c); if ((c = tokadd_escape(p)) < 0) return -1; if (*enc && *enc != *encp) { mixed_escape(p->lex.ptok+2, *enc, *encp); } continue; } else if (func & STR_FUNC_EXPAND) { pushback(p, c); if (func & STR_FUNC_ESCAPE) tokadd(p, '\\'); c = read_escape(p, 0); } else if ((func & STR_FUNC_QWORDS) && ISSPACE(c)) { /* ignore backslashed spaces in %w */ } else if (c != term && !(paren && c == paren)) { tokadd(p, '\\'); pushback(p, c); continue; } } } else if (!parser_isascii(p)) { non_ascii: if (!*enc) { *enc = *encp; } else if (*enc != *encp) { mixed_error(*enc, *encp); continue; } if (tokadd_mbchar(p, c) == -1) return -1; continue; } else if ((func & STR_FUNC_QWORDS) && ISSPACE(c)) { pushback(p, c); break; } if (c & 0x80) { if (!*enc) { *enc = *encp; } else if (*enc != *encp) { mixed_error(*enc, *encp); continue; } } tokadd(p, c); #ifdef RIPPER top_of_line = (c == '\n'); #endif } terminate: if (*enc) *encp = *enc; return c; } #define NEW_STRTERM(func, term, paren) new_strterm(p, func, term, paren) static void flush_string_content(struct parser_params *p, rb_encoding *enc) { if (has_delayed_token(p)) { ptrdiff_t len = p->lex.pcur - p->lex.ptok; if (len > 0) { rb_enc_str_buf_cat(p->delayed.token, p->lex.ptok, len, enc); p->delayed.end_line = p->ruby_sourceline; p->delayed.end_col = rb_long2int(p->lex.pcur - p->lex.pbeg); } dispatch_delayed_token(p, tSTRING_CONTENT); p->lex.ptok = p->lex.pcur; } dispatch_scan_event(p, tSTRING_CONTENT); } RUBY_FUNC_EXPORTED const uint_least32_t ruby_global_name_punct_bits[(0x7e - 0x20 + 31) / 32]; /* this can be shared with ripper, since it's independent from struct * parser_params. */ #ifndef RIPPER #define BIT(c, idx) (((c) / 32 - 1 == idx) ? (1U << ((c) % 32)) : 0) #define SPECIAL_PUNCT(idx) ( \ BIT('~', idx) | BIT('*', idx) | BIT('$', idx) | BIT('?', idx) | \ BIT('!', idx) | BIT('@', idx) | BIT('/', idx) | BIT('\\', idx) | \ BIT(';', idx) | BIT(',', idx) | BIT('.', idx) | BIT('=', idx) | \ BIT(':', idx) | BIT('<', idx) | BIT('>', idx) | BIT('\"', idx) | \ BIT('&', idx) | BIT('`', idx) | BIT('\'', idx) | BIT('+', idx) | \ BIT('0', idx)) const uint_least32_t ruby_global_name_punct_bits[] = { SPECIAL_PUNCT(0), SPECIAL_PUNCT(1), SPECIAL_PUNCT(2), }; #undef BIT #undef SPECIAL_PUNCT #endif static enum yytokentype parser_peek_variable_name(struct parser_params *p) { int c; const char *ptr = p->lex.pcur; if (lex_eol_ptr_n_p(p, ptr, 1)) return 0; c = *ptr++; switch (c) { case '$': if ((c = *ptr) == '-') { if (lex_eol_ptr_p(p, ++ptr)) return 0; c = *ptr; } else if (is_global_name_punct(c) || ISDIGIT(c)) { return tSTRING_DVAR; } break; case '@': if ((c = *ptr) == '@') { if (lex_eol_ptr_p(p, ++ptr)) return 0; c = *ptr; } break; case '{': p->lex.pcur = ptr; p->command_start = TRUE; return tSTRING_DBEG; default: return 0; } if (!ISASCII(c) || c == '_' || ISALPHA(c)) return tSTRING_DVAR; return 0; } #define IS_ARG() IS_lex_state(EXPR_ARG_ANY) #define IS_END() IS_lex_state(EXPR_END_ANY) #define IS_BEG() (IS_lex_state(EXPR_BEG_ANY) || IS_lex_state_all(EXPR_ARG|EXPR_LABELED)) #define IS_SPCARG(c) (IS_ARG() && space_seen && !ISSPACE(c)) #define IS_LABEL_POSSIBLE() (\ (IS_lex_state(EXPR_LABEL|EXPR_ENDFN) && !cmd_state) || \ IS_ARG()) #define IS_LABEL_SUFFIX(n) (peek_n(p, ':',(n)) && !peek_n(p, ':', (n)+1)) #define IS_AFTER_OPERATOR() IS_lex_state(EXPR_FNAME | EXPR_DOT) static inline enum yytokentype parser_string_term(struct parser_params *p, int func) { xfree(p->lex.strterm); p->lex.strterm = 0; if (func & STR_FUNC_REGEXP) { set_yylval_num(regx_options(p)); dispatch_scan_event(p, tREGEXP_END); SET_LEX_STATE(EXPR_END); return tREGEXP_END; } if ((func & STR_FUNC_LABEL) && IS_LABEL_SUFFIX(0)) { nextc(p); SET_LEX_STATE(EXPR_ARG|EXPR_LABELED); return tLABEL_END; } SET_LEX_STATE(EXPR_END); return tSTRING_END; } static enum yytokentype parse_string(struct parser_params *p, rb_strterm_literal_t *quote) { int func = quote->func; int term = quote->term; int paren = quote->paren; int c, space = 0; rb_encoding *enc = p->enc; rb_encoding *base_enc = 0; VALUE lit; if (func & STR_FUNC_TERM) { if (func & STR_FUNC_QWORDS) nextc(p); /* delayed term */ SET_LEX_STATE(EXPR_END); xfree(p->lex.strterm); p->lex.strterm = 0; return func & STR_FUNC_REGEXP ? tREGEXP_END : tSTRING_END; } c = nextc(p); if ((func & STR_FUNC_QWORDS) && ISSPACE(c)) { while (c != '\n' && ISSPACE(c = nextc(p))); space = 1; } if (func & STR_FUNC_LIST) { quote->func &= ~STR_FUNC_LIST; space = 1; } if (c == term && !quote->nest) { if (func & STR_FUNC_QWORDS) { quote->func |= STR_FUNC_TERM; pushback(p, c); /* dispatch the term at tSTRING_END */ add_delayed_token(p, p->lex.ptok, p->lex.pcur, __LINE__); return ' '; } return parser_string_term(p, func); } if (space) { if (!ISSPACE(c)) pushback(p, c); add_delayed_token(p, p->lex.ptok, p->lex.pcur, __LINE__); return ' '; } newtok(p); if ((func & STR_FUNC_EXPAND) && c == '#') { enum yytokentype t = parser_peek_variable_name(p); if (t) return t; tokadd(p, '#'); c = nextc(p); } pushback(p, c); if (tokadd_string(p, func, term, paren, "e->nest, &enc, &base_enc) == -1) { if (p->eofp) { #ifndef RIPPER # define unterminated_literal(mesg) yyerror0(mesg) #else # define unterminated_literal(mesg) compile_error(p, mesg) #endif literal_flush(p, p->lex.pcur); if (func & STR_FUNC_QWORDS) { /* no content to add, bailing out here */ unterminated_literal("unterminated list meets end of file"); xfree(p->lex.strterm); p->lex.strterm = 0; return tSTRING_END; } if (func & STR_FUNC_REGEXP) { unterminated_literal("unterminated regexp meets end of file"); } else { unterminated_literal("unterminated string meets end of file"); } quote->func |= STR_FUNC_TERM; } } tokfix(p); lit = STR_NEW3(tok(p), toklen(p), enc, func); set_yylval_str(lit); flush_string_content(p, enc); return tSTRING_CONTENT; } static enum yytokentype heredoc_identifier(struct parser_params *p) { /* * term_len is length of `<<"END"` except `END`, * in this case term_len is 4 (<, <, " and "). */ long len, offset = p->lex.pcur - p->lex.pbeg; int c = nextc(p), term, func = 0, quote = 0; enum yytokentype token = tSTRING_BEG; int indent = 0; if (c == '-') { c = nextc(p); func = STR_FUNC_INDENT; offset++; } else if (c == '~') { c = nextc(p); func = STR_FUNC_INDENT; offset++; indent = INT_MAX; } switch (c) { case '\'': func |= str_squote; goto quoted; case '"': func |= str_dquote; goto quoted; case '`': token = tXSTRING_BEG; func |= str_xquote; goto quoted; quoted: quote++; offset++; term = c; len = 0; while ((c = nextc(p)) != term) { if (c == -1 || c == '\r' || c == '\n') { yyerror0("unterminated here document identifier"); return -1; } } break; default: if (!parser_is_identchar(p)) { pushback(p, c); if (func & STR_FUNC_INDENT) { pushback(p, indent > 0 ? '~' : '-'); } return 0; } func |= str_dquote; do { int n = parser_precise_mbclen(p, p->lex.pcur-1); if (n < 0) return 0; p->lex.pcur += --n; } while ((c = nextc(p)) != -1 && parser_is_identchar(p)); pushback(p, c); break; } len = p->lex.pcur - (p->lex.pbeg + offset) - quote; if ((unsigned long)len >= HERETERM_LENGTH_MAX) yyerror0("too long here document identifier"); dispatch_scan_event(p, tHEREDOC_BEG); lex_goto_eol(p); p->lex.strterm = new_heredoc(p); rb_strterm_heredoc_t *here = &p->lex.strterm->u.heredoc; here->offset = offset; here->sourceline = p->ruby_sourceline; here->length = (unsigned)len; here->quote = quote; here->func = func; here->lastline = p->lex.lastline; token_flush(p); p->heredoc_indent = indent; p->heredoc_line_indent = 0; return token; } static void heredoc_restore(struct parser_params *p, rb_strterm_heredoc_t *here) { rb_parser_string_t *line; rb_strterm_t *term = p->lex.strterm; p->lex.strterm = 0; line = here->lastline; p->lex.lastline = line; p->lex.pbeg = PARSER_STRING_PTR(line); p->lex.pend = p->lex.pbeg + PARSER_STRING_LEN(line); p->lex.pcur = p->lex.pbeg + here->offset + here->length + here->quote; p->lex.ptok = p->lex.pbeg + here->offset - here->quote; p->heredoc_end = p->ruby_sourceline; p->ruby_sourceline = (int)here->sourceline; if (p->eofp) p->lex.nextline = AFTER_HEREDOC_WITHOUT_TERMINTOR; p->eofp = 0; xfree(term); } static int dedent_string_column(const char *str, long len, int width) { int i, col = 0; for (i = 0; i < len && col < width; i++) { if (str[i] == ' ') { col++; } else if (str[i] == '\t') { int n = TAB_WIDTH * (col / TAB_WIDTH + 1); if (n > width) break; col = n; } else { break; } } return i; } static int dedent_string(struct parser_params *p, rb_parser_string_t *string, int width) { char *str; long len; int i; len = PARSER_STRING_LEN(string); str = PARSER_STRING_PTR(string); i = dedent_string_column(str, len, width); if (!i) return 0; rb_parser_str_modify(string); str = PARSER_STRING_PTR(string); if (PARSER_STRING_LEN(string) != len) rb_fatal("literal string changed: %s", PARSER_STRING_PTR(string)); MEMMOVE(str, str + i, char, len - i); rb_parser_str_set_len(p, string, len - i); return i; } static NODE * heredoc_dedent(struct parser_params *p, NODE *root) { NODE *node, *str_node, *prev_node; int indent = p->heredoc_indent; rb_parser_string_t *prev_lit = 0; if (indent <= 0) return root; p->heredoc_indent = 0; if (!root) return root; prev_node = node = str_node = root; if (nd_type_p(root, NODE_LIST)) str_node = RNODE_LIST(root)->nd_head; while (str_node) { rb_parser_string_t *lit = RNODE_STR(str_node)->string; if (nd_fl_newline(str_node)) { dedent_string(p, lit, indent); } if (!prev_lit) { prev_lit = lit; } else if (!literal_concat0(p, prev_lit, lit)) { return 0; } else { NODE *end = RNODE_LIST(node)->as.nd_end; node = RNODE_LIST(prev_node)->nd_next = RNODE_LIST(node)->nd_next; if (!node) { if (nd_type_p(prev_node, NODE_DSTR)) nd_set_type(prev_node, NODE_STR); break; } RNODE_LIST(node)->as.nd_end = end; goto next_str; } str_node = 0; while ((nd_type_p(node, NODE_LIST) || nd_type_p(node, NODE_DSTR)) && (node = RNODE_LIST(prev_node = node)->nd_next) != 0) { next_str: if (!nd_type_p(node, NODE_LIST)) break; if ((str_node = RNODE_LIST(node)->nd_head) != 0) { enum node_type type = nd_type(str_node); if (type == NODE_STR || type == NODE_DSTR) break; prev_lit = 0; str_node = 0; } } } return root; } #ifdef RIPPER static VALUE ripper_heredoc_dedent(struct parser_params *p, int indent, VALUE array) { if (indent <= 0) return array; p->heredoc_indent = 0; dispatch2(heredoc_dedent, array, INT2NUM(indent)); return array; } #endif static int whole_match_p(struct parser_params *p, const char *eos, long len, int indent) { const char *beg = p->lex.pbeg; const char *ptr = p->lex.pend; if (ptr - beg < len) return FALSE; if (ptr > beg && ptr[-1] == '\n') { if (--ptr > beg && ptr[-1] == '\r') --ptr; if (ptr - beg < len) return FALSE; } if (strncmp(eos, ptr -= len, len)) return FALSE; if (indent) { while (beg < ptr && ISSPACE(*beg)) beg++; } return beg == ptr; } static int word_match_p(struct parser_params *p, const char *word, long len) { if (strncmp(p->lex.pcur, word, len)) return 0; if (lex_eol_n_p(p, len)) return 1; int c = (unsigned char)p->lex.pcur[len]; if (ISSPACE(c)) return 1; switch (c) { case '\0': case '\004': case '\032': return 1; } return 0; } #define NUM_SUFFIX_R (1<<0) #define NUM_SUFFIX_I (1<<1) #define NUM_SUFFIX_ALL 3 static int number_literal_suffix(struct parser_params *p, int mask) { int c, result = 0; const char *lastp = p->lex.pcur; while ((c = nextc(p)) != -1) { if ((mask & NUM_SUFFIX_I) && c == 'i') { result |= (mask & NUM_SUFFIX_I); mask &= ~NUM_SUFFIX_I; /* r after i, rational of complex is disallowed */ mask &= ~NUM_SUFFIX_R; continue; } if ((mask & NUM_SUFFIX_R) && c == 'r') { result |= (mask & NUM_SUFFIX_R); mask &= ~NUM_SUFFIX_R; continue; } if (!ISASCII(c) || ISALPHA(c) || c == '_') { p->lex.pcur = lastp; literal_flush(p, p->lex.pcur); return 0; } pushback(p, c); break; } return result; } static enum yytokentype set_number_literal(struct parser_params *p, enum yytokentype type, int suffix, int base, int seen_point) { enum rb_numeric_type numeric_type = integer_literal; if (type == tFLOAT) { numeric_type = float_literal; } if (suffix & NUM_SUFFIX_R) { type = tRATIONAL; numeric_type = rational_literal; } if (suffix & NUM_SUFFIX_I) { type = tIMAGINARY; } switch (type) { case tINTEGER: set_yylval_node(NEW_INTEGER(strdup(tok(p)), base, &_cur_loc)); break; case tFLOAT: set_yylval_node(NEW_FLOAT(strdup(tok(p)), &_cur_loc)); break; case tRATIONAL: set_yylval_node(NEW_RATIONAL(strdup(tok(p)), base, seen_point, &_cur_loc)); break; case tIMAGINARY: set_yylval_node(NEW_IMAGINARY(strdup(tok(p)), base, seen_point, numeric_type, &_cur_loc)); (void)numeric_type; /* for ripper */ break; default: rb_bug("unexpected token: %d", type); } SET_LEX_STATE(EXPR_END); return type; } #ifdef RIPPER static void dispatch_heredoc_end(struct parser_params *p) { VALUE str; if (has_delayed_token(p)) dispatch_delayed_token(p, tSTRING_CONTENT); str = STR_NEW(p->lex.ptok, p->lex.pend - p->lex.ptok); ripper_dispatch1(p, ripper_token2eventid(tHEREDOC_END), str); RUBY_SET_YYLLOC_FROM_STRTERM_HEREDOC(*p->yylloc); lex_goto_eol(p); token_flush(p); } #else #define dispatch_heredoc_end(p) parser_dispatch_heredoc_end(p, __LINE__) static void parser_dispatch_heredoc_end(struct parser_params *p, int line) { if (has_delayed_token(p)) dispatch_delayed_token(p, tSTRING_CONTENT); if (p->keep_tokens) { VALUE str = STR_NEW(p->lex.ptok, p->lex.pend - p->lex.ptok); RUBY_SET_YYLLOC_OF_HEREDOC_END(*p->yylloc); parser_append_tokens(p, str, tHEREDOC_END, line); } RUBY_SET_YYLLOC_FROM_STRTERM_HEREDOC(*p->yylloc); lex_goto_eol(p); token_flush(p); } #endif static enum yytokentype here_document(struct parser_params *p, rb_strterm_heredoc_t *here) { int c, func, indent = 0; const char *eos, *ptr, *ptr_end; long len; VALUE str = 0; rb_encoding *enc = p->enc; rb_encoding *base_enc = 0; int bol; #ifdef RIPPER VALUE s_value; #endif eos = PARSER_STRING_PTR(here->lastline) + here->offset; len = here->length; indent = (func = here->func) & STR_FUNC_INDENT; if ((c = nextc(p)) == -1) { error: #ifdef RIPPER if (!has_delayed_token(p)) { dispatch_scan_event(p, tSTRING_CONTENT); } else { if ((len = p->lex.pcur - p->lex.ptok) > 0) { if (!(func & STR_FUNC_REGEXP) && rb_enc_asciicompat(enc)) { int cr = ENC_CODERANGE_UNKNOWN; rb_str_coderange_scan_restartable(p->lex.ptok, p->lex.pcur, enc, &cr); if (cr != ENC_CODERANGE_7BIT && rb_is_usascii_enc(p->enc) && enc != rb_utf8_encoding()) { enc = rb_ascii8bit_encoding(); } } rb_enc_str_buf_cat(p->delayed.token, p->lex.ptok, len, enc); } dispatch_delayed_token(p, tSTRING_CONTENT); } lex_goto_eol(p); #endif heredoc_restore(p, &p->lex.strterm->u.heredoc); compile_error(p, "can't find string \"%.*s\" anywhere before EOF", (int)len, eos); token_flush(p); SET_LEX_STATE(EXPR_END); return tSTRING_END; } bol = was_bol(p); if (!bol) { /* not beginning of line, cannot be the terminator */ } else if (p->heredoc_line_indent == -1) { /* `heredoc_line_indent == -1` means * - "after an interpolation in the same line", or * - "in a continuing line" */ p->heredoc_line_indent = 0; } else if (whole_match_p(p, eos, len, indent)) { dispatch_heredoc_end(p); restore: heredoc_restore(p, &p->lex.strterm->u.heredoc); token_flush(p); SET_LEX_STATE(EXPR_END); return tSTRING_END; } if (!(func & STR_FUNC_EXPAND)) { do { ptr = PARSER_STRING_PTR(p->lex.lastline); ptr_end = p->lex.pend; if (ptr_end > ptr) { switch (ptr_end[-1]) { case '\n': if (--ptr_end == ptr || ptr_end[-1] != '\r') { ptr_end++; break; } case '\r': --ptr_end; } } if (p->heredoc_indent > 0) { long i = 0; while (ptr + i < ptr_end && parser_update_heredoc_indent(p, ptr[i])) i++; p->heredoc_line_indent = 0; } if (str) rb_str_cat(str, ptr, ptr_end - ptr); else str = STR_NEW(ptr, ptr_end - ptr); if (!lex_eol_ptr_p(p, ptr_end)) rb_str_cat(str, "\n", 1); lex_goto_eol(p); if (p->heredoc_indent > 0) { goto flush_str; } if (nextc(p) == -1) { if (str) { str = 0; } goto error; } } while (!whole_match_p(p, eos, len, indent)); } else { /* int mb = ENC_CODERANGE_7BIT, *mbp = &mb;*/ newtok(p); if (c == '#') { enum yytokentype t = parser_peek_variable_name(p); if (p->heredoc_line_indent != -1) { if (p->heredoc_indent > p->heredoc_line_indent) { p->heredoc_indent = p->heredoc_line_indent; } p->heredoc_line_indent = -1; } if (t) return t; tokadd(p, '#'); c = nextc(p); } do { pushback(p, c); enc = p->enc; if ((c = tokadd_string(p, func, '\n', 0, NULL, &enc, &base_enc)) == -1) { if (p->eofp) goto error; goto restore; } if (c != '\n') { if (c == '\\') p->heredoc_line_indent = -1; flush: str = STR_NEW3(tok(p), toklen(p), enc, func); flush_str: set_yylval_str(str); #ifndef RIPPER if (bol) nd_set_fl_newline(yylval.node); #endif flush_string_content(p, enc); return tSTRING_CONTENT; } tokadd(p, nextc(p)); if (p->heredoc_indent > 0) { lex_goto_eol(p); goto flush; } /* if (mbp && mb == ENC_CODERANGE_UNKNOWN) mbp = 0;*/ if ((c = nextc(p)) == -1) goto error; } while (!whole_match_p(p, eos, len, indent)); str = STR_NEW3(tok(p), toklen(p), enc, func); } dispatch_heredoc_end(p); heredoc_restore(p, &p->lex.strterm->u.heredoc); token_flush(p); p->lex.strterm = NEW_STRTERM(func | STR_FUNC_TERM, 0, 0); #ifdef RIPPER /* Preserve s_value for set_yylval_str */ s_value = p->s_value; #endif set_yylval_str(str); #ifdef RIPPER set_parser_s_value(s_value); #endif #ifndef RIPPER if (bol) nd_set_fl_newline(yylval.node); #endif return tSTRING_CONTENT; } #include "lex.c" static int arg_ambiguous(struct parser_params *p, char c) { #ifndef RIPPER if (c == '/') { rb_warning1("ambiguity between regexp and two divisions: wrap regexp in parentheses or add a space after '%c' operator", WARN_I(c)); } else { rb_warning1("ambiguous first argument; put parentheses or a space even after '%c' operator", WARN_I(c)); } #else dispatch1(arg_ambiguous, rb_usascii_str_new(&c, 1)); #endif return TRUE; } static ID formal_argument(struct parser_params *p, ID id) { switch (id_type(id)) { case ID_LOCAL: break; #define ERR(mesg) yyerror0(mesg) case ID_CONST: ERR("formal argument cannot be a constant"); return 0; case ID_INSTANCE: ERR("formal argument cannot be an instance variable"); return 0; case ID_GLOBAL: ERR("formal argument cannot be a global variable"); return 0; case ID_CLASS: ERR("formal argument cannot be a class variable"); return 0; default: ERR("formal argument must be local variable"); return 0; #undef ERR } shadowing_lvar(p, id); return id; } #ifdef RIPPER static void ripper_formal_argument(struct parser_params *p, ID id, VALUE lhs) { switch (id_type(id)) { case ID_LOCAL: break; #define ERR(mesg) (dispatch2(param_error, WARN_S(mesg), lhs), ripper_error(p)) case ID_CONST: ERR("formal argument cannot be a constant"); return; case ID_INSTANCE: ERR("formal argument cannot be an instance variable"); return; case ID_GLOBAL: ERR("formal argument cannot be a global variable"); return; case ID_CLASS: ERR("formal argument cannot be a class variable"); return; default: ERR("formal argument must be local variable"); return; #undef ERR } } #endif static int lvar_defined(struct parser_params *p, ID id) { return (dyna_in_block(p) && dvar_defined(p, id)) || local_id(p, id); } /* emacsen -*- hack */ static long parser_encode_length(struct parser_params *p, const char *name, long len) { long nlen; if (len > 5 && name[nlen = len - 5] == '-') { if (rb_memcicmp(name + nlen + 1, "unix", 4) == 0) return nlen; } if (len > 4 && name[nlen = len - 4] == '-') { if (rb_memcicmp(name + nlen + 1, "dos", 3) == 0) return nlen; if (rb_memcicmp(name + nlen + 1, "mac", 3) == 0 && !(len == 8 && rb_memcicmp(name, "utf8-mac", len) == 0)) /* exclude UTF8-MAC because the encoding named "UTF8" doesn't exist in Ruby */ return nlen; } return len; } static void parser_set_encode(struct parser_params *p, const char *name) { rb_encoding *enc; VALUE excargs[3]; int idx = 0; const char *wrong = 0; switch (*name) { case 'e': case 'E': wrong = "external"; break; case 'i': case 'I': wrong = "internal"; break; case 'f': case 'F': wrong = "filesystem"; break; case 'l': case 'L': wrong = "locale"; break; } if (wrong && STRCASECMP(name, wrong) == 0) goto unknown; idx = rb_enc_find_index(name); if (idx < 0) { unknown: excargs[1] = rb_sprintf("unknown encoding name: %s", name); error: excargs[0] = rb_eArgError; excargs[2] = rb_make_backtrace(); rb_ary_unshift(excargs[2], rb_sprintf("%"PRIsVALUE":%d", p->ruby_sourcefile_string, p->ruby_sourceline)); VALUE exc = rb_make_exception(3, excargs); ruby_show_error_line(p, exc, &(YYLTYPE)RUBY_INIT_YYLLOC(), p->ruby_sourceline, p->lex.lastline); rb_exc_raise(exc); } enc = rb_enc_from_index(idx); if (!rb_enc_asciicompat(enc)) { excargs[1] = rb_sprintf("%s is not ASCII compatible", rb_enc_name(enc)); goto error; } p->enc = enc; #ifndef RIPPER if (p->debug_lines) { VALUE lines = p->debug_lines; long i, n = RARRAY_LEN(lines); for (i = 0; i < n; ++i) { rb_enc_associate_index(RARRAY_AREF(lines, i), idx); } } #endif } static bool comment_at_top(struct parser_params *p) { if (p->token_seen) return false; return (p->line_count == (p->has_shebang ? 2 : 1)); } typedef long (*rb_magic_comment_length_t)(struct parser_params *p, const char *name, long len); typedef void (*rb_magic_comment_setter_t)(struct parser_params *p, const char *name, const char *val); static int parser_invalid_pragma_value(struct parser_params *p, const char *name, const char *val); static void magic_comment_encoding(struct parser_params *p, const char *name, const char *val) { if (!comment_at_top(p)) { return; } parser_set_encode(p, val); } static int parser_get_bool(struct parser_params *p, const char *name, const char *val) { switch (*val) { case 't': case 'T': if (STRCASECMP(val, "true") == 0) { return TRUE; } break; case 'f': case 'F': if (STRCASECMP(val, "false") == 0) { return FALSE; } break; } return parser_invalid_pragma_value(p, name, val); } static int parser_invalid_pragma_value(struct parser_params *p, const char *name, const char *val) { rb_warning2("invalid value for %s: %s", WARN_S(name), WARN_S(val)); return -1; } static void parser_set_token_info(struct parser_params *p, const char *name, const char *val) { int b = parser_get_bool(p, name, val); if (b >= 0) p->token_info_enabled = b; } static void parser_set_frozen_string_literal(struct parser_params *p, const char *name, const char *val) { int b; if (p->token_seen) { rb_warning1("'%s' is ignored after any tokens", WARN_S(name)); return; } b = parser_get_bool(p, name, val); if (b < 0) return; p->frozen_string_literal = b; } static void parser_set_shareable_constant_value(struct parser_params *p, const char *name, const char *val) { for (const char *s = p->lex.pbeg, *e = p->lex.pcur; s < e; ++s) { if (*s == ' ' || *s == '\t') continue; if (*s == '#') break; rb_warning1("'%s' is ignored unless in comment-only line", WARN_S(name)); return; } switch (*val) { case 'n': case 'N': if (STRCASECMP(val, "none") == 0) { p->ctxt.shareable_constant_value = shareable_none; return; } break; case 'l': case 'L': if (STRCASECMP(val, "literal") == 0) { p->ctxt.shareable_constant_value = shareable_literal; return; } break; case 'e': case 'E': if (STRCASECMP(val, "experimental_copy") == 0) { p->ctxt.shareable_constant_value = shareable_copy; return; } if (STRCASECMP(val, "experimental_everything") == 0) { p->ctxt.shareable_constant_value = shareable_everything; return; } break; } parser_invalid_pragma_value(p, name, val); } # if WARN_PAST_SCOPE static void parser_set_past_scope(struct parser_params *p, const char *name, const char *val) { int b = parser_get_bool(p, name, val); if (b >= 0) p->past_scope_enabled = b; } # endif struct magic_comment { const char *name; rb_magic_comment_setter_t func; rb_magic_comment_length_t length; }; static const struct magic_comment magic_comments[] = { {"coding", magic_comment_encoding, parser_encode_length}, {"encoding", magic_comment_encoding, parser_encode_length}, {"frozen_string_literal", parser_set_frozen_string_literal}, {"shareable_constant_value", parser_set_shareable_constant_value}, {"warn_indent", parser_set_token_info}, # if WARN_PAST_SCOPE {"warn_past_scope", parser_set_past_scope}, # endif }; static const char * magic_comment_marker(const char *str, long len) { long i = 2; while (i < len) { switch (str[i]) { case '-': if (str[i-1] == '*' && str[i-2] == '-') { return str + i + 1; } i += 2; break; case '*': if (i + 1 >= len) return 0; if (str[i+1] != '-') { i += 4; } else if (str[i-1] != '-') { i += 2; } else { return str + i + 2; } break; default: i += 3; break; } } return 0; } static int parser_magic_comment(struct parser_params *p, const char *str, long len) { int indicator = 0; VALUE name = 0, val = 0; const char *beg, *end, *vbeg, *vend; #define str_copy(_s, _p, _n) ((_s) \ ? (void)(rb_str_resize((_s), (_n)), \ MEMCPY(RSTRING_PTR(_s), (_p), char, (_n)), (_s)) \ : (void)((_s) = STR_NEW((_p), (_n)))) if (len <= 7) return FALSE; if (!!(beg = magic_comment_marker(str, len))) { if (!(end = magic_comment_marker(beg, str + len - beg))) return FALSE; indicator = TRUE; str = beg; len = end - beg - 3; } /* %r"([^\\s\'\":;]+)\\s*:\\s*(\"(?:\\\\.|[^\"])*\"|[^\"\\s;]+)[\\s;]*" */ while (len > 0) { const struct magic_comment *mc = magic_comments; char *s; int i; long n = 0; for (; len > 0 && *str; str++, --len) { switch (*str) { case '\'': case '"': case ':': case ';': continue; } if (!ISSPACE(*str)) break; } for (beg = str; len > 0; str++, --len) { switch (*str) { case '\'': case '"': case ':': case ';': break; default: if (ISSPACE(*str)) break; continue; } break; } for (end = str; len > 0 && ISSPACE(*str); str++, --len); if (!len) break; if (*str != ':') { if (!indicator) return FALSE; continue; } do str++; while (--len > 0 && ISSPACE(*str)); if (!len) break; const char *tok_beg = str; if (*str == '"') { for (vbeg = ++str; --len > 0 && *str != '"'; str++) { if (*str == '\\') { --len; ++str; } } vend = str; if (len) { --len; ++str; } } else { for (vbeg = str; len > 0 && *str != '"' && *str != ';' && !ISSPACE(*str); --len, str++); vend = str; } const char *tok_end = str; if (indicator) { while (len > 0 && (*str == ';' || ISSPACE(*str))) --len, str++; } else { while (len > 0 && (ISSPACE(*str))) --len, str++; if (len) return FALSE; } n = end - beg; str_copy(name, beg, n); s = RSTRING_PTR(name); for (i = 0; i < n; ++i) { if (s[i] == '-') s[i] = '_'; } do { if (STRNCASECMP(mc->name, s, n) == 0 && !mc->name[n]) { n = vend - vbeg; if (mc->length) { n = (*mc->length)(p, vbeg, n); } str_copy(val, vbeg, n); p->lex.ptok = tok_beg; p->lex.pcur = tok_end; (*mc->func)(p, mc->name, RSTRING_PTR(val)); break; } } while (++mc < magic_comments + numberof(magic_comments)); #ifdef RIPPER str_copy(val, vbeg, vend - vbeg); dispatch2(magic_comment, name, val); #endif } return TRUE; } static void set_file_encoding(struct parser_params *p, const char *str, const char *send) { int sep = 0; const char *beg = str; VALUE s; for (;;) { if (send - str <= 6) return; switch (str[6]) { case 'C': case 'c': str += 6; continue; case 'O': case 'o': str += 5; continue; case 'D': case 'd': str += 4; continue; case 'I': case 'i': str += 3; continue; case 'N': case 'n': str += 2; continue; case 'G': case 'g': str += 1; continue; case '=': case ':': sep = 1; str += 6; break; default: str += 6; if (ISSPACE(*str)) break; continue; } if (STRNCASECMP(str-6, "coding", 6) == 0) break; sep = 0; } for (;;) { do { if (++str >= send) return; } while (ISSPACE(*str)); if (sep) break; if (*str != '=' && *str != ':') return; sep = 1; str++; } beg = str; while ((*str == '-' || *str == '_' || ISALNUM(*str)) && ++str < send); s = rb_str_new(beg, parser_encode_length(p, beg, str - beg)); p->lex.ptok = beg; p->lex.pcur = str; parser_set_encode(p, RSTRING_PTR(s)); rb_str_resize(s, 0); } static void parser_prepare(struct parser_params *p) { int c = nextc0(p, FALSE); p->token_info_enabled = !compile_for_eval && RTEST(ruby_verbose); switch (c) { case '#': if (peek(p, '!')) p->has_shebang = 1; break; case 0xef: /* UTF-8 BOM marker */ if (!lex_eol_n_p(p, 2) && (unsigned char)p->lex.pcur[0] == 0xbb && (unsigned char)p->lex.pcur[1] == 0xbf) { p->enc = rb_utf8_encoding(); p->lex.pcur += 2; #ifndef RIPPER if (p->debug_lines) { rb_parser_string_set_encoding(p->lex.lastline, p->enc); } #endif p->lex.pbeg = p->lex.pcur; token_flush(p); return; } break; case -1: /* end of script. */ return; } pushback(p, c); p->enc = rb_parser_str_get_encoding(p->lex.lastline); } #ifndef RIPPER #define ambiguous_operator(tok, op, syn) ( \ rb_warning0("'"op"' after local variable or literal is interpreted as binary operator"), \ rb_warning0("even though it seems like "syn"")) #else #define ambiguous_operator(tok, op, syn) \ dispatch2(operator_ambiguous, TOKEN2VAL(tok), rb_str_new_cstr(syn)) #endif #define warn_balanced(tok, op, syn) ((void) \ (!IS_lex_state_for(last_state, EXPR_CLASS|EXPR_DOT|EXPR_FNAME|EXPR_ENDFN) && \ space_seen && !ISSPACE(c) && \ (ambiguous_operator(tok, op, syn), 0)), \ (enum yytokentype)(tok)) static enum yytokentype no_digits(struct parser_params *p) { yyerror0("numeric literal without digits"); if (peek(p, '_')) nextc(p); /* dummy 0, for tUMINUS_NUM at numeric */ return set_number_literal(p, tINTEGER, 0, 10, 0); } static enum yytokentype parse_numeric(struct parser_params *p, int c) { int is_float, seen_point, seen_e, nondigit; int suffix; is_float = seen_point = seen_e = nondigit = 0; SET_LEX_STATE(EXPR_END); newtok(p); if (c == '-' || c == '+') { tokadd(p, c); c = nextc(p); } if (c == '0') { int start = toklen(p); c = nextc(p); if (c == 'x' || c == 'X') { /* hexadecimal */ c = nextc(p); if (c != -1 && ISXDIGIT(c)) { do { if (c == '_') { if (nondigit) break; nondigit = c; continue; } if (!ISXDIGIT(c)) break; nondigit = 0; tokadd(p, c); } while ((c = nextc(p)) != -1); } pushback(p, c); tokfix(p); if (toklen(p) == start) { return no_digits(p); } else if (nondigit) goto trailing_uc; suffix = number_literal_suffix(p, NUM_SUFFIX_ALL); return set_number_literal(p, tINTEGER, suffix, 16, 0); } if (c == 'b' || c == 'B') { /* binary */ c = nextc(p); if (c == '0' || c == '1') { do { if (c == '_') { if (nondigit) break; nondigit = c; continue; } if (c != '0' && c != '1') break; nondigit = 0; tokadd(p, c); } while ((c = nextc(p)) != -1); } pushback(p, c); tokfix(p); if (toklen(p) == start) { return no_digits(p); } else if (nondigit) goto trailing_uc; suffix = number_literal_suffix(p, NUM_SUFFIX_ALL); return set_number_literal(p, tINTEGER, suffix, 2, 0); } if (c == 'd' || c == 'D') { /* decimal */ c = nextc(p); if (c != -1 && ISDIGIT(c)) { do { if (c == '_') { if (nondigit) break; nondigit = c; continue; } if (!ISDIGIT(c)) break; nondigit = 0; tokadd(p, c); } while ((c = nextc(p)) != -1); } pushback(p, c); tokfix(p); if (toklen(p) == start) { return no_digits(p); } else if (nondigit) goto trailing_uc; suffix = number_literal_suffix(p, NUM_SUFFIX_ALL); return set_number_literal(p, tINTEGER, suffix, 10, 0); } if (c == '_') { /* 0_0 */ goto octal_number; } if (c == 'o' || c == 'O') { /* prefixed octal */ c = nextc(p); if (c == -1 || c == '_' || !ISDIGIT(c)) { return no_digits(p); } } if (c >= '0' && c <= '7') { /* octal */ octal_number: do { if (c == '_') { if (nondigit) break; nondigit = c; continue; } if (c < '0' || c > '9') break; if (c > '7') goto invalid_octal; nondigit = 0; tokadd(p, c); } while ((c = nextc(p)) != -1); if (toklen(p) > start) { pushback(p, c); tokfix(p); if (nondigit) goto trailing_uc; suffix = number_literal_suffix(p, NUM_SUFFIX_ALL); return set_number_literal(p, tINTEGER, suffix, 8, 0); } if (nondigit) { pushback(p, c); goto trailing_uc; } } if (c > '7' && c <= '9') { invalid_octal: yyerror0("Invalid octal digit"); } else if (c == '.' || c == 'e' || c == 'E') { tokadd(p, '0'); } else { pushback(p, c); tokfix(p); suffix = number_literal_suffix(p, NUM_SUFFIX_ALL); return set_number_literal(p, tINTEGER, suffix, 10, 0); } } for (;;) { switch (c) { case '0': case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': nondigit = 0; tokadd(p, c); break; case '.': if (nondigit) goto trailing_uc; if (seen_point || seen_e) { goto decode_num; } else { int c0 = nextc(p); if (c0 == -1 || !ISDIGIT(c0)) { pushback(p, c0); goto decode_num; } c = c0; } seen_point = toklen(p); tokadd(p, '.'); tokadd(p, c); is_float++; nondigit = 0; break; case 'e': case 'E': if (nondigit) { pushback(p, c); c = nondigit; goto decode_num; } if (seen_e) { goto decode_num; } nondigit = c; c = nextc(p); if (c != '-' && c != '+' && !ISDIGIT(c)) { pushback(p, c); c = nondigit; nondigit = 0; goto decode_num; } tokadd(p, nondigit); seen_e++; is_float++; tokadd(p, c); nondigit = (c == '-' || c == '+') ? c : 0; break; case '_': /* `_' in number just ignored */ if (nondigit) goto decode_num; nondigit = c; break; default: goto decode_num; } c = nextc(p); } decode_num: pushback(p, c); if (nondigit) { trailing_uc: literal_flush(p, p->lex.pcur - 1); YYLTYPE loc = RUBY_INIT_YYLLOC(); compile_error(p, "trailing '%c' in number", nondigit); parser_show_error_line(p, &loc); } tokfix(p); if (is_float) { enum yytokentype type = tFLOAT; suffix = number_literal_suffix(p, seen_e ? NUM_SUFFIX_I : NUM_SUFFIX_ALL); if (suffix & NUM_SUFFIX_R) { type = tRATIONAL; } else { strtod(tok(p), 0); if (errno == ERANGE) { rb_warning1("Float %s out of range", WARN_S(tok(p))); errno = 0; } } return set_number_literal(p, type, suffix, 0, seen_point); } suffix = number_literal_suffix(p, NUM_SUFFIX_ALL); return set_number_literal(p, tINTEGER, suffix, 10, 0); } static enum yytokentype parse_qmark(struct parser_params *p, int space_seen) { rb_encoding *enc; register int c; VALUE lit; if (IS_END()) { SET_LEX_STATE(EXPR_VALUE); return '?'; } c = nextc(p); if (c == -1) { compile_error(p, "incomplete character syntax"); return 0; } if (rb_enc_isspace(c, p->enc)) { if (!IS_ARG()) { int c2 = escaped_control_code(c); if (c2) { WARN_SPACE_CHAR(c2, "?"); } } ternary: pushback(p, c); SET_LEX_STATE(EXPR_VALUE); return '?'; } newtok(p); enc = p->enc; if (!parser_isascii(p)) { if (tokadd_mbchar(p, c) == -1) return 0; } else if ((rb_enc_isalnum(c, p->enc) || c == '_') && !lex_eol_p(p) && is_identchar(p, p->lex.pcur, p->lex.pend, p->enc)) { if (space_seen) { const char *start = p->lex.pcur - 1, *ptr = start; do { int n = parser_precise_mbclen(p, ptr); if (n < 0) return -1; ptr += n; } while (!lex_eol_ptr_p(p, ptr) && is_identchar(p, ptr, p->lex.pend, p->enc)); rb_warn2("'?' just followed by '%.*s' is interpreted as" \ " a conditional operator, put a space after '?'", WARN_I((int)(ptr - start)), WARN_S_L(start, (ptr - start))); } goto ternary; } else if (c == '\\') { if (peek(p, 'u')) { nextc(p); enc = rb_utf8_encoding(); tokadd_utf8(p, &enc, -1, 0, 0); } else if (!ISASCII(c = peekc(p))) { nextc(p); if (tokadd_mbchar(p, c) == -1) return 0; } else { c = read_escape(p, 0); tokadd(p, c); } } else { tokadd(p, c); } tokfix(p); lit = STR_NEW3(tok(p), toklen(p), enc, 0); set_yylval_str(lit); SET_LEX_STATE(EXPR_END); return tCHAR; } static enum yytokentype parse_percent(struct parser_params *p, const int space_seen, const enum lex_state_e last_state) { register int c; const char *ptok = p->lex.pcur; if (IS_BEG()) { int term; int paren; c = nextc(p); quotation: if (c == -1) goto unterminated; if (!ISALNUM(c)) { term = c; if (!ISASCII(c)) goto unknown; c = 'Q'; } else { term = nextc(p); if (rb_enc_isalnum(term, p->enc) || !parser_isascii(p)) { unknown: pushback(p, term); c = parser_precise_mbclen(p, p->lex.pcur); if (c < 0) return 0; p->lex.pcur += c; yyerror0("unknown type of %string"); return 0; } } if (term == -1) { unterminated: compile_error(p, "unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') term = ')'; else if (term == '[') term = ']'; else if (term == '{') term = '}'; else if (term == '<') term = '>'; else paren = 0; p->lex.ptok = ptok-1; switch (c) { case 'Q': p->lex.strterm = NEW_STRTERM(str_dquote, term, paren); return tSTRING_BEG; case 'q': p->lex.strterm = NEW_STRTERM(str_squote, term, paren); return tSTRING_BEG; case 'W': p->lex.strterm = NEW_STRTERM(str_dword, term, paren); return tWORDS_BEG; case 'w': p->lex.strterm = NEW_STRTERM(str_sword, term, paren); return tQWORDS_BEG; case 'I': p->lex.strterm = NEW_STRTERM(str_dword, term, paren); return tSYMBOLS_BEG; case 'i': p->lex.strterm = NEW_STRTERM(str_sword, term, paren); return tQSYMBOLS_BEG; case 'x': p->lex.strterm = NEW_STRTERM(str_xquote, term, paren); return tXSTRING_BEG; case 'r': p->lex.strterm = NEW_STRTERM(str_regexp, term, paren); return tREGEXP_BEG; case 's': p->lex.strterm = NEW_STRTERM(str_ssym, term, paren); SET_LEX_STATE(EXPR_FNAME|EXPR_FITEM); return tSYMBEG; default: yyerror0("unknown type of %string"); return 0; } } if ((c = nextc(p)) == '=') { set_yylval_id('%'); SET_LEX_STATE(EXPR_BEG); return tOP_ASGN; } if (IS_SPCARG(c) || (IS_lex_state(EXPR_FITEM) && c == 's')) { goto quotation; } SET_LEX_STATE(IS_AFTER_OPERATOR() ? EXPR_ARG : EXPR_BEG); pushback(p, c); return warn_balanced('%', "%%", "string literal"); } static int tokadd_ident(struct parser_params *p, int c) { do { if (tokadd_mbchar(p, c) == -1) return -1; c = nextc(p); } while (parser_is_identchar(p)); pushback(p, c); return 0; } static ID tokenize_ident(struct parser_params *p) { ID ident = TOK_INTERN(); set_yylval_name(ident); return ident; } static int parse_numvar(struct parser_params *p) { size_t len; int overflow; unsigned long n = ruby_scan_digits(tok(p)+1, toklen(p)-1, 10, &len, &overflow); const unsigned long nth_ref_max = ((FIXNUM_MAX < INT_MAX) ? FIXNUM_MAX : INT_MAX) >> 1; /* NTH_REF is left-shifted to be ORed with back-ref flag and * turned into a Fixnum, in compile.c */ if (overflow || n > nth_ref_max) { /* compile_error()? */ rb_warn1("'%s' is too big for a number variable, always nil", WARN_S(tok(p))); return 0; /* $0 is $PROGRAM_NAME, not NTH_REF */ } else { return (int)n; } } static enum yytokentype parse_gvar(struct parser_params *p, const enum lex_state_e last_state) { const char *ptr = p->lex.pcur; register int c; SET_LEX_STATE(EXPR_END); p->lex.ptok = ptr - 1; /* from '$' */ newtok(p); c = nextc(p); switch (c) { case '_': /* $_: last read line string */ c = nextc(p); if (parser_is_identchar(p)) { tokadd(p, '$'); tokadd(p, '_'); break; } pushback(p, c); c = '_'; /* fall through */ case '~': /* $~: match-data */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokadd(p, '$'); tokadd(p, c); goto gvar; case '-': tokadd(p, '$'); tokadd(p, c); c = nextc(p); if (parser_is_identchar(p)) { if (tokadd_mbchar(p, c) == -1) return 0; } else { pushback(p, c); pushback(p, '-'); return '$'; } gvar: set_yylval_name(TOK_INTERN()); return tGVAR; case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ if (IS_lex_state_for(last_state, EXPR_FNAME)) { tokadd(p, '$'); tokadd(p, c); goto gvar; } set_yylval_node(NEW_BACK_REF(c, &_cur_loc)); return tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokadd(p, '$'); do { tokadd(p, c); c = nextc(p); } while (c != -1 && ISDIGIT(c)); pushback(p, c); if (IS_lex_state_for(last_state, EXPR_FNAME)) goto gvar; tokfix(p); c = parse_numvar(p); set_yylval_node(NEW_NTH_REF(c, &_cur_loc)); return tNTH_REF; default: if (!parser_is_identchar(p)) { YYLTYPE loc = RUBY_INIT_YYLLOC(); if (c == -1 || ISSPACE(c)) { compile_error(p, "'$' without identifiers is not allowed as a global variable name"); } else { pushback(p, c); compile_error(p, "'$%c' is not allowed as a global variable name", c); } parser_show_error_line(p, &loc); set_yylval_noname(); return tGVAR; } /* fall through */ case '0': tokadd(p, '$'); } if (tokadd_ident(p, c)) return 0; SET_LEX_STATE(EXPR_END); if (VALID_SYMNAME_P(tok(p), toklen(p), p->enc, ID_GLOBAL)) { tokenize_ident(p); } else { compile_error(p, "'%.*s' is not allowed as a global variable name", toklen(p), tok(p)); set_yylval_noname(); } return tGVAR; } static bool parser_numbered_param(struct parser_params *p, int n) { if (n < 0) return false; if (DVARS_TERMINAL_P(p->lvtbl->args) || DVARS_TERMINAL_P(p->lvtbl->args->prev)) { return false; } if (p->max_numparam == ORDINAL_PARAM) { compile_error(p, "ordinary parameter is defined"); return false; } struct vtable *args = p->lvtbl->args; if (p->max_numparam < n) { p->max_numparam = n; } while (n > args->pos) { vtable_add(args, NUMPARAM_IDX_TO_ID(args->pos+1)); } return true; } static enum yytokentype parse_atmark(struct parser_params *p, const enum lex_state_e last_state) { const char *ptr = p->lex.pcur; enum yytokentype result = tIVAR; register int c = nextc(p); YYLTYPE loc; p->lex.ptok = ptr - 1; /* from '@' */ newtok(p); tokadd(p, '@'); if (c == '@') { result = tCVAR; tokadd(p, '@'); c = nextc(p); } SET_LEX_STATE(IS_lex_state_for(last_state, EXPR_FNAME) ? EXPR_ENDFN : EXPR_END); if (c == -1 || !parser_is_identchar(p)) { pushback(p, c); RUBY_SET_YYLLOC(loc); if (result == tIVAR) { compile_error(p, "'@' without identifiers is not allowed as an instance variable name"); } else { compile_error(p, "'@@' without identifiers is not allowed as a class variable name"); } parser_show_error_line(p, &loc); set_yylval_noname(); SET_LEX_STATE(EXPR_END); return result; } else if (ISDIGIT(c)) { pushback(p, c); RUBY_SET_YYLLOC(loc); if (result == tIVAR) { compile_error(p, "'@%c' is not allowed as an instance variable name", c); } else { compile_error(p, "'@@%c' is not allowed as a class variable name", c); } parser_show_error_line(p, &loc); set_yylval_noname(); SET_LEX_STATE(EXPR_END); return result; } if (tokadd_ident(p, c)) return 0; tokenize_ident(p); return result; } static enum yytokentype parse_ident(struct parser_params *p, int c, int cmd_state) { enum yytokentype result; bool is_ascii = true; const enum lex_state_e last_state = p->lex.state; ID ident; int enforce_keyword_end = 0; do { if (!ISASCII(c)) is_ascii = false; if (tokadd_mbchar(p, c) == -1) return 0; c = nextc(p); } while (parser_is_identchar(p)); if ((c == '!' || c == '?') && !peek(p, '=')) { result = tFID; tokadd(p, c); } else if (c == '=' && IS_lex_state(EXPR_FNAME) && (!peek(p, '~') && !peek(p, '>') && (!peek(p, '=') || (peek_n(p, '>', 1))))) { result = tIDENTIFIER; tokadd(p, c); } else { result = tCONSTANT; /* assume provisionally */ pushback(p, c); } tokfix(p); if (IS_LABEL_POSSIBLE()) { if (IS_LABEL_SUFFIX(0)) { SET_LEX_STATE(EXPR_ARG|EXPR_LABELED); nextc(p); set_yylval_name(TOK_INTERN()); return tLABEL; } } #ifndef RIPPER if (peek_end_expect_token_locations(p)) { const rb_code_position_t *end_pos; int lineno, column; int beg_pos = (int)(p->lex.ptok - p->lex.pbeg); end_pos = peek_end_expect_token_locations(p)->pos; lineno = end_pos->lineno; column = end_pos->column; if (p->debug) { rb_parser_printf(p, "enforce_keyword_end check. current: (%d, %d), peek: (%d, %d)\n", p->ruby_sourceline, beg_pos, lineno, column); } if ((p->ruby_sourceline > lineno) && (beg_pos <= column)) { const struct kwtable *kw; if ((IS_lex_state(EXPR_DOT)) && (kw = rb_reserved_word(tok(p), toklen(p))) && (kw && kw->id[0] == keyword_end)) { if (p->debug) rb_parser_printf(p, "enforce_keyword_end is enabled\n"); enforce_keyword_end = 1; } } } #endif if (is_ascii && (!IS_lex_state(EXPR_DOT) || enforce_keyword_end)) { const struct kwtable *kw; /* See if it is a reserved word. */ kw = rb_reserved_word(tok(p), toklen(p)); if (kw) { enum lex_state_e state = p->lex.state; if (IS_lex_state_for(state, EXPR_FNAME)) { SET_LEX_STATE(EXPR_ENDFN); set_yylval_name(rb_intern2(tok(p), toklen(p))); return kw->id[0]; } SET_LEX_STATE(kw->state); if (IS_lex_state(EXPR_BEG)) { p->command_start = TRUE; } if (kw->id[0] == keyword_do) { if (lambda_beginning_p()) { p->lex.lpar_beg = -1; /* make lambda_beginning_p() == FALSE in the body of "-> do ... end" */ return keyword_do_LAMBDA; } if (COND_P()) return keyword_do_cond; if (CMDARG_P() && !IS_lex_state_for(state, EXPR_CMDARG)) return keyword_do_block; return keyword_do; } if (IS_lex_state_for(state, (EXPR_BEG | EXPR_LABELED | EXPR_CLASS))) return kw->id[0]; else { if (kw->id[0] != kw->id[1]) SET_LEX_STATE(EXPR_BEG | EXPR_LABEL); return kw->id[1]; } } } if (IS_lex_state(EXPR_BEG_ANY | EXPR_ARG_ANY | EXPR_DOT)) { if (cmd_state) { SET_LEX_STATE(EXPR_CMDARG); } else { SET_LEX_STATE(EXPR_ARG); } } else if (p->lex.state == EXPR_FNAME) { SET_LEX_STATE(EXPR_ENDFN); } else { SET_LEX_STATE(EXPR_END); } ident = tokenize_ident(p); if (result == tCONSTANT && is_local_id(ident)) result = tIDENTIFIER; if (!IS_lex_state_for(last_state, EXPR_DOT|EXPR_FNAME) && (result == tIDENTIFIER) && /* not EXPR_FNAME, not attrasgn */ (lvar_defined(p, ident) || NUMPARAM_ID_P(ident))) { SET_LEX_STATE(EXPR_END|EXPR_LABEL); } return result; } static void warn_cr(struct parser_params *p) { if (!p->cr_seen) { p->cr_seen = TRUE; /* carried over with p->lex.nextline for nextc() */ rb_warn0("encountered \\r in middle of line, treated as a mere space"); } } static enum yytokentype parser_yylex(struct parser_params *p) { register int c; int space_seen = 0; int cmd_state; int label; enum lex_state_e last_state; int fallthru = FALSE; int token_seen = p->token_seen; if (p->lex.strterm) { if (strterm_is_heredoc(p->lex.strterm)) { token_flush(p); return here_document(p, &p->lex.strterm->u.heredoc); } else { token_flush(p); return parse_string(p, &p->lex.strterm->u.literal); } } cmd_state = p->command_start; p->command_start = FALSE; p->token_seen = TRUE; #ifndef RIPPER token_flush(p); #endif retry: last_state = p->lex.state; switch (c = nextc(p)) { case '\0': /* NUL */ case '\004': /* ^D */ case '\032': /* ^Z */ case -1: /* end of script. */ p->eofp = 1; #ifndef RIPPER if (p->end_expect_token_locations) { pop_end_expect_token_locations(p); RUBY_SET_YYLLOC_OF_DUMMY_END(*p->yylloc); return tDUMNY_END; } #endif /* Set location for end-of-input because dispatch_scan_event is not called. */ RUBY_SET_YYLLOC(*p->yylloc); return END_OF_INPUT; /* white spaces */ case '\r': warn_cr(p); /* fall through */ case ' ': case '\t': case '\f': case '\13': /* '\v' */ space_seen = 1; while ((c = nextc(p))) { switch (c) { case '\r': warn_cr(p); /* fall through */ case ' ': case '\t': case '\f': case '\13': /* '\v' */ break; default: goto outofloop; } } outofloop: pushback(p, c); dispatch_scan_event(p, tSP); #ifndef RIPPER token_flush(p); #endif goto retry; case '#': /* it's a comment */ p->token_seen = token_seen; const char *const pcur = p->lex.pcur, *const ptok = p->lex.ptok; /* no magic_comment in shebang line */ if (!parser_magic_comment(p, p->lex.pcur, p->lex.pend - p->lex.pcur)) { if (comment_at_top(p)) { set_file_encoding(p, p->lex.pcur, p->lex.pend); } } p->lex.pcur = pcur, p->lex.ptok = ptok; lex_goto_eol(p); dispatch_scan_event(p, tCOMMENT); fallthru = TRUE; /* fall through */ case '\n': p->token_seen = token_seen; rb_parser_string_t *prevline = p->lex.lastline; c = (IS_lex_state(EXPR_BEG|EXPR_CLASS|EXPR_FNAME|EXPR_DOT) && !IS_lex_state(EXPR_LABELED)); if (c || IS_lex_state_all(EXPR_ARG|EXPR_LABELED)) { if (!fallthru) { dispatch_scan_event(p, tIGNORED_NL); } fallthru = FALSE; if (!c && p->ctxt.in_kwarg) { goto normal_newline; } goto retry; } while (1) { switch (c = nextc(p)) { case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ space_seen = 1; break; case '#': pushback(p, c); if (space_seen) { dispatch_scan_event(p, tSP); token_flush(p); } goto retry; case '&': case '.': { dispatch_delayed_token(p, tIGNORED_NL); if (peek(p, '.') == (c == '&')) { pushback(p, c); dispatch_scan_event(p, tSP); goto retry; } } default: p->ruby_sourceline--; p->lex.nextline = p->lex.lastline; set_lastline(p, prevline); case -1: /* EOF no decrement*/ lex_goto_eol(p); if (c != -1) { token_flush(p); RUBY_SET_YYLLOC(*p->yylloc); } goto normal_newline; } } normal_newline: p->command_start = TRUE; SET_LEX_STATE(EXPR_BEG); return '\n'; case '*': if ((c = nextc(p)) == '*') { if ((c = nextc(p)) == '=') { set_yylval_id(idPow); SET_LEX_STATE(EXPR_BEG); return tOP_ASGN; } pushback(p, c); if (IS_SPCARG(c)) { rb_warning0("'**' interpreted as argument prefix"); c = tDSTAR; } else if (IS_BEG()) { c = tDSTAR; } else { c = warn_balanced((enum ruby_method_ids)tPOW, "**", "argument prefix"); } } else { if (c == '=') { set_yylval_id('*'); SET_LEX_STATE(EXPR_BEG); return tOP_ASGN; } pushback(p, c); if (IS_SPCARG(c)) { rb_warning0("'*' interpreted as argument prefix"); c = tSTAR; } else if (IS_BEG()) { c = tSTAR; } else { c = warn_balanced('*', "*", "argument prefix"); } } SET_LEX_STATE(IS_AFTER_OPERATOR() ? EXPR_ARG : EXPR_BEG); return c; case '!': c = nextc(p); if (IS_AFTER_OPERATOR()) { SET_LEX_STATE(EXPR_ARG); if (c == '@') { return '!'; } } else { SET_LEX_STATE(EXPR_BEG); } if (c == '=') { return tNEQ; } if (c == '~') { return tNMATCH; } pushback(p, c); return '!'; case '=': if (was_bol(p)) { /* skip embedded rd document */ if (word_match_p(p, "begin", 5)) { int first_p = TRUE; lex_goto_eol(p); dispatch_scan_event(p, tEMBDOC_BEG); for (;;) { lex_goto_eol(p); if (!first_p) { dispatch_scan_event(p, tEMBDOC); } first_p = FALSE; c = nextc(p); if (c == -1) { compile_error(p, "embedded document meets end of file"); return END_OF_INPUT; } if (c == '=' && word_match_p(p, "end", 3)) { break; } pushback(p, c); } lex_goto_eol(p); dispatch_scan_event(p, tEMBDOC_END); goto retry; } } SET_LEX_STATE(IS_AFTER_OPERATOR() ? EXPR_ARG : EXPR_BEG); if ((c = nextc(p)) == '=') { if ((c = nextc(p)) == '=') { return tEQQ; } pushback(p, c); return tEQ; } if (c == '~') { return tMATCH; } else if (c == '>') { return tASSOC; } pushback(p, c); return '='; case '<': c = nextc(p); if (c == '<' && !IS_lex_state(EXPR_DOT | EXPR_CLASS) && !IS_END() && (!IS_ARG() || IS_lex_state(EXPR_LABELED) || space_seen)) { enum yytokentype token = heredoc_identifier(p); if (token) return token < 0 ? 0 : token; } if (IS_AFTER_OPERATOR()) { SET_LEX_STATE(EXPR_ARG); } else { if (IS_lex_state(EXPR_CLASS)) p->command_start = TRUE; SET_LEX_STATE(EXPR_BEG); } if (c == '=') { if ((c = nextc(p)) == '>') { return tCMP; } pushback(p, c); return tLEQ; } if (c == '<') { if ((c = nextc(p)) == '=') { set_yylval_id(idLTLT); SET_LEX_STATE(EXPR_BEG); return tOP_ASGN; } pushback(p, c); return warn_balanced((enum ruby_method_ids)tLSHFT, "<<", "here document"); } pushback(p, c); return '<'; case '>': SET_LEX_STATE(IS_AFTER_OPERATOR() ? EXPR_ARG : EXPR_BEG); if ((c = nextc(p)) == '=') { return tGEQ; } if (c == '>') { if ((c = nextc(p)) == '=') { set_yylval_id(idGTGT); SET_LEX_STATE(EXPR_BEG); return tOP_ASGN; } pushback(p, c); return tRSHFT; } pushback(p, c); return '>'; case '"': label = (IS_LABEL_POSSIBLE() ? str_label : 0); p->lex.strterm = NEW_STRTERM(str_dquote | label, '"', 0); p->lex.ptok = p->lex.pcur-1; return tSTRING_BEG; case '`': if (IS_lex_state(EXPR_FNAME)) { SET_LEX_STATE(EXPR_ENDFN); return c; } if (IS_lex_state(EXPR_DOT)) { if (cmd_state) SET_LEX_STATE(EXPR_CMDARG); else SET_LEX_STATE(EXPR_ARG); return c; } p->lex.strterm = NEW_STRTERM(str_xquote, '`', 0); return tXSTRING_BEG; case '\'': label = (IS_LABEL_POSSIBLE() ? str_label : 0); p->lex.strterm = NEW_STRTERM(str_squote | label, '\'', 0); p->lex.ptok = p->lex.pcur-1; return tSTRING_BEG; case '?': return parse_qmark(p, space_seen); case '&': if ((c = nextc(p)) == '&') { SET_LEX_STATE(EXPR_BEG); if ((c = nextc(p)) == '=') { set_yylval_id(idANDOP); SET_LEX_STATE(EXPR_BEG); return tOP_ASGN; } pushback(p, c); return tANDOP; } else if (c == '=') { set_yylval_id('&'); SET_LEX_STATE(EXPR_BEG); return tOP_ASGN; } else if (c == '.') { set_yylval_id(idANDDOT); SET_LEX_STATE(EXPR_DOT); return tANDDOT; } pushback(p, c); if (IS_SPCARG(c)) { if ((c != ':') || (c = peekc_n(p, 1)) == -1 || !(c == '\'' || c == '"' || is_identchar(p, (p->lex.pcur+1), p->lex.pend, p->enc))) { rb_warning0("'&' interpreted as argument prefix"); } c = tAMPER; } else if (IS_BEG()) { c = tAMPER; } else { c = warn_balanced('&', "&", "argument prefix"); } SET_LEX_STATE(IS_AFTER_OPERATOR() ? EXPR_ARG : EXPR_BEG); return c; case '|': if ((c = nextc(p)) == '|') { SET_LEX_STATE(EXPR_BEG); if ((c = nextc(p)) == '=') { set_yylval_id(idOROP); SET_LEX_STATE(EXPR_BEG); return tOP_ASGN; } pushback(p, c); if (IS_lex_state_for(last_state, EXPR_BEG)) { c = '|'; pushback(p, '|'); return c; } return tOROP; } if (c == '=') { set_yylval_id('|'); SET_LEX_STATE(EXPR_BEG); return tOP_ASGN; } SET_LEX_STATE(IS_AFTER_OPERATOR() ? EXPR_ARG : EXPR_BEG|EXPR_LABEL); pushback(p, c); return '|'; case '+': c = nextc(p); if (IS_AFTER_OPERATOR()) { SET_LEX_STATE(EXPR_ARG); if (c == '@') { return tUPLUS; } pushback(p, c); return '+'; } if (c == '=') { set_yylval_id('+'); SET_LEX_STATE(EXPR_BEG); return tOP_ASGN; } if (IS_BEG() || (IS_SPCARG(c) && arg_ambiguous(p, '+'))) { SET_LEX_STATE(EXPR_BEG); pushback(p, c); if (c != -1 && ISDIGIT(c)) { return parse_numeric(p, '+'); } return tUPLUS; } SET_LEX_STATE(EXPR_BEG); pushback(p, c); return warn_balanced('+', "+", "unary operator"); case '-': c = nextc(p); if (IS_AFTER_OPERATOR()) { SET_LEX_STATE(EXPR_ARG); if (c == '@') { return tUMINUS; } pushback(p, c); return '-'; } if (c == '=') { set_yylval_id('-'); SET_LEX_STATE(EXPR_BEG); return tOP_ASGN; } if (c == '>') { SET_LEX_STATE(EXPR_ENDFN); return tLAMBDA; } if (IS_BEG() || (IS_SPCARG(c) && arg_ambiguous(p, '-'))) { SET_LEX_STATE(EXPR_BEG); pushback(p, c); if (c != -1 && ISDIGIT(c)) { return tUMINUS_NUM; } return tUMINUS; } SET_LEX_STATE(EXPR_BEG); pushback(p, c); return warn_balanced('-', "-", "unary operator"); case '.': { int is_beg = IS_BEG(); SET_LEX_STATE(EXPR_BEG); if ((c = nextc(p)) == '.') { if ((c = nextc(p)) == '.') { if (p->ctxt.in_argdef) { SET_LEX_STATE(EXPR_ENDARG); return tBDOT3; } if (p->lex.paren_nest == 0 && looking_at_eol_p(p)) { rb_warn0("... at EOL, should be parenthesized?"); } else if (p->lex.lpar_beg >= 0 && p->lex.lpar_beg+1 == p->lex.paren_nest) { if (IS_lex_state_for(last_state, EXPR_LABEL)) return tDOT3; } return is_beg ? tBDOT3 : tDOT3; } pushback(p, c); return is_beg ? tBDOT2 : tDOT2; } pushback(p, c); if (c != -1 && ISDIGIT(c)) { char prev = p->lex.pcur-1 > p->lex.pbeg ? *(p->lex.pcur-2) : 0; parse_numeric(p, '.'); if (ISDIGIT(prev)) { yyerror0("unexpected fraction part after numeric literal"); } else { yyerror0("no . floating literal anymore; put 0 before dot"); } SET_LEX_STATE(EXPR_END); p->lex.ptok = p->lex.pcur; goto retry; } set_yylval_id('.'); SET_LEX_STATE(EXPR_DOT); return '.'; } case '0': case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': return parse_numeric(p, c); case ')': COND_POP(); CMDARG_POP(); SET_LEX_STATE(EXPR_ENDFN); p->lex.paren_nest--; return c; case ']': COND_POP(); CMDARG_POP(); SET_LEX_STATE(EXPR_END); p->lex.paren_nest--; return c; case '}': /* tSTRING_DEND does COND_POP and CMDARG_POP in the yacc's rule */ if (!p->lex.brace_nest--) return tSTRING_DEND; COND_POP(); CMDARG_POP(); SET_LEX_STATE(EXPR_END); p->lex.paren_nest--; return c; case ':': c = nextc(p); if (c == ':') { if (IS_BEG() || IS_lex_state(EXPR_CLASS) || IS_SPCARG(-1)) { SET_LEX_STATE(EXPR_BEG); return tCOLON3; } set_yylval_id(idCOLON2); SET_LEX_STATE(EXPR_DOT); return tCOLON2; } if (IS_END() || ISSPACE(c) || c == '#') { pushback(p, c); c = warn_balanced(':', ":", "symbol literal"); SET_LEX_STATE(EXPR_BEG); return c; } switch (c) { case '\'': p->lex.strterm = NEW_STRTERM(str_ssym, c, 0); break; case '"': p->lex.strterm = NEW_STRTERM(str_dsym, c, 0); break; default: pushback(p, c); break; } SET_LEX_STATE(EXPR_FNAME); return tSYMBEG; case '/': if (IS_BEG()) { p->lex.strterm = NEW_STRTERM(str_regexp, '/', 0); return tREGEXP_BEG; } if ((c = nextc(p)) == '=') { set_yylval_id('/'); SET_LEX_STATE(EXPR_BEG); return tOP_ASGN; } pushback(p, c); if (IS_SPCARG(c)) { arg_ambiguous(p, '/'); p->lex.strterm = NEW_STRTERM(str_regexp, '/', 0); return tREGEXP_BEG; } SET_LEX_STATE(IS_AFTER_OPERATOR() ? EXPR_ARG : EXPR_BEG); return warn_balanced('/', "/", "regexp literal"); case '^': if ((c = nextc(p)) == '=') { set_yylval_id('^'); SET_LEX_STATE(EXPR_BEG); return tOP_ASGN; } SET_LEX_STATE(IS_AFTER_OPERATOR() ? EXPR_ARG : EXPR_BEG); pushback(p, c); return '^'; case ';': SET_LEX_STATE(EXPR_BEG); p->command_start = TRUE; return ';'; case ',': SET_LEX_STATE(EXPR_BEG|EXPR_LABEL); return ','; case '~': if (IS_AFTER_OPERATOR()) { if ((c = nextc(p)) != '@') { pushback(p, c); } SET_LEX_STATE(EXPR_ARG); } else { SET_LEX_STATE(EXPR_BEG); } return '~'; case '(': if (IS_BEG()) { c = tLPAREN; } else if (!space_seen) { /* foo( ... ) => method call, no ambiguity */ } else if (IS_ARG() || IS_lex_state_all(EXPR_END|EXPR_LABEL)) { c = tLPAREN_ARG; } else if (IS_lex_state(EXPR_ENDFN) && !lambda_beginning_p()) { rb_warning0("parentheses after method name is interpreted as " "an argument list, not a decomposed argument"); } p->lex.paren_nest++; COND_PUSH(0); CMDARG_PUSH(0); SET_LEX_STATE(EXPR_BEG|EXPR_LABEL); return c; case '[': p->lex.paren_nest++; if (IS_AFTER_OPERATOR()) { if ((c = nextc(p)) == ']') { p->lex.paren_nest--; SET_LEX_STATE(EXPR_ARG); if ((c = nextc(p)) == '=') { return tASET; } pushback(p, c); return tAREF; } pushback(p, c); SET_LEX_STATE(EXPR_ARG|EXPR_LABEL); return '['; } else if (IS_BEG()) { c = tLBRACK; } else if (IS_ARG() && (space_seen || IS_lex_state(EXPR_LABELED))) { c = tLBRACK; } SET_LEX_STATE(EXPR_BEG|EXPR_LABEL); COND_PUSH(0); CMDARG_PUSH(0); return c; case '{': ++p->lex.brace_nest; if (lambda_beginning_p()) c = tLAMBEG; else if (IS_lex_state(EXPR_LABELED)) c = tLBRACE; /* hash */ else if (IS_lex_state(EXPR_ARG_ANY | EXPR_END | EXPR_ENDFN)) c = '{'; /* block (primary) */ else if (IS_lex_state(EXPR_ENDARG)) c = tLBRACE_ARG; /* block (expr) */ else c = tLBRACE; /* hash */ if (c != tLBRACE) { p->command_start = TRUE; SET_LEX_STATE(EXPR_BEG); } else { SET_LEX_STATE(EXPR_BEG|EXPR_LABEL); } ++p->lex.paren_nest; /* after lambda_beginning_p() */ COND_PUSH(0); CMDARG_PUSH(0); return c; case '\\': c = nextc(p); if (c == '\n') { space_seen = 1; dispatch_scan_event(p, tSP); goto retry; /* skip \\n */ } if (c == ' ') return tSP; if (ISSPACE(c)) return c; pushback(p, c); return '\\'; case '%': return parse_percent(p, space_seen, last_state); case '$': return parse_gvar(p, last_state); case '@': return parse_atmark(p, last_state); case '_': if (was_bol(p) && whole_match_p(p, "__END__", 7, 0)) { p->ruby__end__seen = 1; p->eofp = 1; #ifdef RIPPER lex_goto_eol(p); dispatch_scan_event(p, k__END__); #endif return END_OF_INPUT; } newtok(p); break; default: if (!parser_is_identchar(p)) { compile_error(p, "Invalid char '\\x%02X' in expression", c); token_flush(p); goto retry; } newtok(p); break; } return parse_ident(p, c, cmd_state); } static enum yytokentype yylex(YYSTYPE *lval, YYLTYPE *yylloc, struct parser_params *p) { enum yytokentype t; p->lval = lval; lval->val = Qundef; p->yylloc = yylloc; t = parser_yylex(p); if (has_delayed_token(p)) dispatch_delayed_token(p, t); else if (t != END_OF_INPUT) dispatch_scan_event(p, t); return t; } #define LVAR_USED ((ID)1 << (sizeof(ID) * CHAR_BIT - 1)) static NODE* node_new_internal(struct parser_params *p, enum node_type type, size_t size, size_t alignment) { NODE *n = rb_ast_newnode(p->ast, type, size, alignment); rb_node_init(n, type); return n; } static NODE * nd_set_loc(NODE *nd, const YYLTYPE *loc) { nd->nd_loc = *loc; nd_set_line(nd, loc->beg_pos.lineno); return nd; } static NODE* node_newnode(struct parser_params *p, enum node_type type, size_t size, size_t alignment, const rb_code_location_t *loc) { NODE *n = node_new_internal(p, type, size, alignment); nd_set_loc(n, loc); nd_set_node_id(n, parser_get_node_id(p)); return n; } #define NODE_NEWNODE(node_type, type, loc) (type *)(node_newnode(p, node_type, sizeof(type), RUBY_ALIGNOF(type), loc)) static rb_node_scope_t * rb_node_scope_new(struct parser_params *p, rb_node_args_t *nd_args, NODE *nd_body, const YYLTYPE *loc) { rb_ast_id_table_t *nd_tbl; nd_tbl = local_tbl(p); rb_node_scope_t *n = NODE_NEWNODE(NODE_SCOPE, rb_node_scope_t, loc); n->nd_tbl = nd_tbl; n->nd_body = nd_body; n->nd_args = nd_args; return n; } static rb_node_scope_t * rb_node_scope_new2(struct parser_params *p, rb_ast_id_table_t *nd_tbl, rb_node_args_t *nd_args, NODE *nd_body, const YYLTYPE *loc) { rb_node_scope_t *n = NODE_NEWNODE(NODE_SCOPE, rb_node_scope_t, loc); n->nd_tbl = nd_tbl; n->nd_body = nd_body; n->nd_args = nd_args; return n; } static rb_node_defn_t * rb_node_defn_new(struct parser_params *p, ID nd_mid, NODE *nd_defn, const YYLTYPE *loc) { rb_node_defn_t *n = NODE_NEWNODE(NODE_DEFN, rb_node_defn_t, loc); n->nd_mid = nd_mid; n->nd_defn = nd_defn; return n; } static rb_node_defs_t * rb_node_defs_new(struct parser_params *p, NODE *nd_recv, ID nd_mid, NODE *nd_defn, const YYLTYPE *loc) { rb_node_defs_t *n = NODE_NEWNODE(NODE_DEFS, rb_node_defs_t, loc); n->nd_recv = nd_recv; n->nd_mid = nd_mid; n->nd_defn = nd_defn; return n; } static rb_node_block_t * rb_node_block_new(struct parser_params *p, NODE *nd_head, const YYLTYPE *loc) { rb_node_block_t *n = NODE_NEWNODE(NODE_BLOCK, rb_node_block_t, loc); n->nd_head = nd_head; n->nd_end = (NODE *)n; n->nd_next = 0; return n; } static rb_node_for_t * rb_node_for_new(struct parser_params *p, NODE *nd_iter, NODE *nd_body, const YYLTYPE *loc) { rb_node_for_t *n = NODE_NEWNODE(NODE_FOR, rb_node_for_t, loc); n->nd_body = nd_body; n->nd_iter = nd_iter; return n; } static rb_node_for_masgn_t * rb_node_for_masgn_new(struct parser_params *p, NODE *nd_var, const YYLTYPE *loc) { rb_node_for_masgn_t *n = NODE_NEWNODE(NODE_FOR_MASGN, rb_node_for_masgn_t, loc); n->nd_var = nd_var; return n; } static rb_node_retry_t * rb_node_retry_new(struct parser_params *p, const YYLTYPE *loc) { rb_node_retry_t *n = NODE_NEWNODE(NODE_RETRY, rb_node_retry_t, loc); return n; } static rb_node_begin_t * rb_node_begin_new(struct parser_params *p, NODE *nd_body, const YYLTYPE *loc) { rb_node_begin_t *n = NODE_NEWNODE(NODE_BEGIN, rb_node_begin_t, loc); n->nd_body = nd_body; return n; } static rb_node_rescue_t * rb_node_rescue_new(struct parser_params *p, NODE *nd_head, NODE *nd_resq, NODE *nd_else, const YYLTYPE *loc) { rb_node_rescue_t *n = NODE_NEWNODE(NODE_RESCUE, rb_node_rescue_t, loc); n->nd_head = nd_head; n->nd_resq = nd_resq; n->nd_else = nd_else; return n; } static rb_node_resbody_t * rb_node_resbody_new(struct parser_params *p, NODE *nd_args, NODE *nd_body, NODE *nd_next, const YYLTYPE *loc) { rb_node_resbody_t *n = NODE_NEWNODE(NODE_RESBODY, rb_node_resbody_t, loc); n->nd_args = nd_args; n->nd_body = nd_body; n->nd_next = nd_next; return n; } static rb_node_ensure_t * rb_node_ensure_new(struct parser_params *p, NODE *nd_head, NODE *nd_ensr, const YYLTYPE *loc) { rb_node_ensure_t *n = NODE_NEWNODE(NODE_ENSURE, rb_node_ensure_t, loc); n->nd_head = nd_head; n->nd_ensr = nd_ensr; return n; } static rb_node_and_t * rb_node_and_new(struct parser_params *p, NODE *nd_1st, NODE *nd_2nd, const YYLTYPE *loc) { rb_node_and_t *n = NODE_NEWNODE(NODE_AND, rb_node_and_t, loc); n->nd_1st = nd_1st; n->nd_2nd = nd_2nd; return n; } static rb_node_or_t * rb_node_or_new(struct parser_params *p, NODE *nd_1st, NODE *nd_2nd, const YYLTYPE *loc) { rb_node_or_t *n = NODE_NEWNODE(NODE_OR, rb_node_or_t, loc); n->nd_1st = nd_1st; n->nd_2nd = nd_2nd; return n; } static rb_node_return_t * rb_node_return_new(struct parser_params *p, NODE *nd_stts, const YYLTYPE *loc) { rb_node_return_t *n = NODE_NEWNODE(NODE_RETURN, rb_node_return_t, loc); n->nd_stts = nd_stts; return n; } static rb_node_yield_t * rb_node_yield_new(struct parser_params *p, NODE *nd_head, const YYLTYPE *loc) { rb_node_yield_t *n = NODE_NEWNODE(NODE_YIELD, rb_node_yield_t, loc); n->nd_head = nd_head; return n; } static rb_node_if_t * rb_node_if_new(struct parser_params *p, NODE *nd_cond, NODE *nd_body, NODE *nd_else, const YYLTYPE *loc) { rb_node_if_t *n = NODE_NEWNODE(NODE_IF, rb_node_if_t, loc); n->nd_cond = nd_cond; n->nd_body = nd_body; n->nd_else = nd_else; return n; } static rb_node_unless_t * rb_node_unless_new(struct parser_params *p, NODE *nd_cond, NODE *nd_body, NODE *nd_else, const YYLTYPE *loc) { rb_node_unless_t *n = NODE_NEWNODE(NODE_UNLESS, rb_node_unless_t, loc); n->nd_cond = nd_cond; n->nd_body = nd_body; n->nd_else = nd_else; return n; } static rb_node_class_t * rb_node_class_new(struct parser_params *p, NODE *nd_cpath, NODE *nd_body, NODE *nd_super, const YYLTYPE *loc) { /* Keep the order of node creation */ NODE *scope = NEW_SCOPE(0, nd_body, loc); rb_node_class_t *n = NODE_NEWNODE(NODE_CLASS, rb_node_class_t, loc); n->nd_cpath = nd_cpath; n->nd_body = scope; n->nd_super = nd_super; return n; } static rb_node_sclass_t * rb_node_sclass_new(struct parser_params *p, NODE *nd_recv, NODE *nd_body, const YYLTYPE *loc) { /* Keep the order of node creation */ NODE *scope = NEW_SCOPE(0, nd_body, loc); rb_node_sclass_t *n = NODE_NEWNODE(NODE_SCLASS, rb_node_sclass_t, loc); n->nd_recv = nd_recv; n->nd_body = scope; return n; } static rb_node_module_t * rb_node_module_new(struct parser_params *p, NODE *nd_cpath, NODE *nd_body, const YYLTYPE *loc) { /* Keep the order of node creation */ NODE *scope = NEW_SCOPE(0, nd_body, loc); rb_node_module_t *n = NODE_NEWNODE(NODE_MODULE, rb_node_module_t, loc); n->nd_cpath = nd_cpath; n->nd_body = scope; return n; } static rb_node_iter_t * rb_node_iter_new(struct parser_params *p, rb_node_args_t *nd_args, NODE *nd_body, const YYLTYPE *loc) { /* Keep the order of node creation */ NODE *scope = NEW_SCOPE(nd_args, nd_body, loc); rb_node_iter_t *n = NODE_NEWNODE(NODE_ITER, rb_node_iter_t, loc); n->nd_body = scope; n->nd_iter = 0; return n; } static rb_node_lambda_t * rb_node_lambda_new(struct parser_params *p, rb_node_args_t *nd_args, NODE *nd_body, const YYLTYPE *loc) { /* Keep the order of node creation */ NODE *scope = NEW_SCOPE(nd_args, nd_body, loc); rb_node_lambda_t *n = NODE_NEWNODE(NODE_LAMBDA, rb_node_lambda_t, loc); n->nd_body = scope; return n; } static rb_node_case_t * rb_node_case_new(struct parser_params *p, NODE *nd_head, NODE *nd_body, const YYLTYPE *loc) { rb_node_case_t *n = NODE_NEWNODE(NODE_CASE, rb_node_case_t, loc); n->nd_head = nd_head; n->nd_body = nd_body; return n; } static rb_node_case2_t * rb_node_case2_new(struct parser_params *p, NODE *nd_body, const YYLTYPE *loc) { rb_node_case2_t *n = NODE_NEWNODE(NODE_CASE2, rb_node_case2_t, loc); n->nd_head = 0; n->nd_body = nd_body; return n; } static rb_node_case3_t * rb_node_case3_new(struct parser_params *p, NODE *nd_head, NODE *nd_body, const YYLTYPE *loc) { rb_node_case3_t *n = NODE_NEWNODE(NODE_CASE3, rb_node_case3_t, loc); n->nd_head = nd_head; n->nd_body = nd_body; return n; } static rb_node_when_t * rb_node_when_new(struct parser_params *p, NODE *nd_head, NODE *nd_body, NODE *nd_next, const YYLTYPE *loc) { rb_node_when_t *n = NODE_NEWNODE(NODE_WHEN, rb_node_when_t, loc); n->nd_head = nd_head; n->nd_body = nd_body; n->nd_next = nd_next; return n; } static rb_node_in_t * rb_node_in_new(struct parser_params *p, NODE *nd_head, NODE *nd_body, NODE *nd_next, const YYLTYPE *loc) { rb_node_in_t *n = NODE_NEWNODE(NODE_IN, rb_node_in_t, loc); n->nd_head = nd_head; n->nd_body = nd_body; n->nd_next = nd_next; return n; } static rb_node_while_t * rb_node_while_new(struct parser_params *p, NODE *nd_cond, NODE *nd_body, long nd_state, const YYLTYPE *loc) { rb_node_while_t *n = NODE_NEWNODE(NODE_WHILE, rb_node_while_t, loc); n->nd_cond = nd_cond; n->nd_body = nd_body; n->nd_state = nd_state; return n; } static rb_node_until_t * rb_node_until_new(struct parser_params *p, NODE *nd_cond, NODE *nd_body, long nd_state, const YYLTYPE *loc) { rb_node_until_t *n = NODE_NEWNODE(NODE_UNTIL, rb_node_until_t, loc); n->nd_cond = nd_cond; n->nd_body = nd_body; n->nd_state = nd_state; return n; } static rb_node_colon2_t * rb_node_colon2_new(struct parser_params *p, NODE *nd_head, ID nd_mid, const YYLTYPE *loc) { rb_node_colon2_t *n = NODE_NEWNODE(NODE_COLON2, rb_node_colon2_t, loc); n->nd_head = nd_head; n->nd_mid = nd_mid; return n; } static rb_node_colon3_t * rb_node_colon3_new(struct parser_params *p, ID nd_mid, const YYLTYPE *loc) { rb_node_colon3_t *n = NODE_NEWNODE(NODE_COLON3, rb_node_colon3_t, loc); n->nd_mid = nd_mid; return n; } static rb_node_dot2_t * rb_node_dot2_new(struct parser_params *p, NODE *nd_beg, NODE *nd_end, const YYLTYPE *loc) { rb_node_dot2_t *n = NODE_NEWNODE(NODE_DOT2, rb_node_dot2_t, loc); n->nd_beg = nd_beg; n->nd_end = nd_end; return n; } static rb_node_dot3_t * rb_node_dot3_new(struct parser_params *p, NODE *nd_beg, NODE *nd_end, const YYLTYPE *loc) { rb_node_dot3_t *n = NODE_NEWNODE(NODE_DOT3, rb_node_dot3_t, loc); n->nd_beg = nd_beg; n->nd_end = nd_end; return n; } static rb_node_self_t * rb_node_self_new(struct parser_params *p, const YYLTYPE *loc) { rb_node_self_t *n = NODE_NEWNODE(NODE_SELF, rb_node_self_t, loc); n->nd_state = 1; return n; } static rb_node_nil_t * rb_node_nil_new(struct parser_params *p, const YYLTYPE *loc) { rb_node_nil_t *n = NODE_NEWNODE(NODE_NIL, rb_node_nil_t, loc); return n; } static rb_node_true_t * rb_node_true_new(struct parser_params *p, const YYLTYPE *loc) { rb_node_true_t *n = NODE_NEWNODE(NODE_TRUE, rb_node_true_t, loc); return n; } static rb_node_false_t * rb_node_false_new(struct parser_params *p, const YYLTYPE *loc) { rb_node_false_t *n = NODE_NEWNODE(NODE_FALSE, rb_node_false_t, loc); return n; } static rb_node_super_t * rb_node_super_new(struct parser_params *p, NODE *nd_args, const YYLTYPE *loc) { rb_node_super_t *n = NODE_NEWNODE(NODE_SUPER, rb_node_super_t, loc); n->nd_args = nd_args; return n; } static rb_node_zsuper_t * rb_node_zsuper_new(struct parser_params *p, const YYLTYPE *loc) { rb_node_zsuper_t *n = NODE_NEWNODE(NODE_ZSUPER, rb_node_zsuper_t, loc); return n; } static rb_node_match2_t * rb_node_match2_new(struct parser_params *p, NODE *nd_recv, NODE *nd_value, const YYLTYPE *loc) { rb_node_match2_t *n = NODE_NEWNODE(NODE_MATCH2, rb_node_match2_t, loc); n->nd_recv = nd_recv; n->nd_value = nd_value; n->nd_args = 0; return n; } static rb_node_match3_t * rb_node_match3_new(struct parser_params *p, NODE *nd_recv, NODE *nd_value, const YYLTYPE *loc) { rb_node_match3_t *n = NODE_NEWNODE(NODE_MATCH3, rb_node_match3_t, loc); n->nd_recv = nd_recv; n->nd_value = nd_value; return n; } /* TODO: Use union for NODE_LIST2 */ static rb_node_list_t * rb_node_list_new(struct parser_params *p, NODE *nd_head, const YYLTYPE *loc) { rb_node_list_t *n = NODE_NEWNODE(NODE_LIST, rb_node_list_t, loc); n->nd_head = nd_head; n->as.nd_alen = 1; n->nd_next = 0; return n; } static rb_node_list_t * rb_node_list_new2(struct parser_params *p, NODE *nd_head, long nd_alen, NODE *nd_next, const YYLTYPE *loc) { rb_node_list_t *n = NODE_NEWNODE(NODE_LIST, rb_node_list_t, loc); n->nd_head = nd_head; n->as.nd_alen = nd_alen; n->nd_next = nd_next; return n; } static rb_node_zlist_t * rb_node_zlist_new(struct parser_params *p, const YYLTYPE *loc) { rb_node_zlist_t *n = NODE_NEWNODE(NODE_ZLIST, rb_node_zlist_t, loc); return n; } static rb_node_hash_t * rb_node_hash_new(struct parser_params *p, NODE *nd_head, const YYLTYPE *loc) { rb_node_hash_t *n = NODE_NEWNODE(NODE_HASH, rb_node_hash_t, loc); n->nd_head = nd_head; n->nd_brace = 0; return n; } static rb_node_masgn_t * rb_node_masgn_new(struct parser_params *p, NODE *nd_head, NODE *nd_args, const YYLTYPE *loc) { rb_node_masgn_t *n = NODE_NEWNODE(NODE_MASGN, rb_node_masgn_t, loc); n->nd_head = nd_head; n->nd_value = 0; n->nd_args = nd_args; return n; } static rb_node_gasgn_t * rb_node_gasgn_new(struct parser_params *p, ID nd_vid, NODE *nd_value, const YYLTYPE *loc) { rb_node_gasgn_t *n = NODE_NEWNODE(NODE_GASGN, rb_node_gasgn_t, loc); n->nd_vid = nd_vid; n->nd_value = nd_value; return n; } static rb_node_lasgn_t * rb_node_lasgn_new(struct parser_params *p, ID nd_vid, NODE *nd_value, const YYLTYPE *loc) { rb_node_lasgn_t *n = NODE_NEWNODE(NODE_LASGN, rb_node_lasgn_t, loc); n->nd_vid = nd_vid; n->nd_value = nd_value; return n; } static rb_node_dasgn_t * rb_node_dasgn_new(struct parser_params *p, ID nd_vid, NODE *nd_value, const YYLTYPE *loc) { rb_node_dasgn_t *n = NODE_NEWNODE(NODE_DASGN, rb_node_dasgn_t, loc); n->nd_vid = nd_vid; n->nd_value = nd_value; return n; } static rb_node_iasgn_t * rb_node_iasgn_new(struct parser_params *p, ID nd_vid, NODE *nd_value, const YYLTYPE *loc) { rb_node_iasgn_t *n = NODE_NEWNODE(NODE_IASGN, rb_node_iasgn_t, loc); n->nd_vid = nd_vid; n->nd_value = nd_value; return n; } static rb_node_cvasgn_t * rb_node_cvasgn_new(struct parser_params *p, ID nd_vid, NODE *nd_value, const YYLTYPE *loc) { rb_node_cvasgn_t *n = NODE_NEWNODE(NODE_CVASGN, rb_node_cvasgn_t, loc); n->nd_vid = nd_vid; n->nd_value = nd_value; return n; } static rb_node_op_asgn1_t * rb_node_op_asgn1_new(struct parser_params *p, NODE *nd_recv, ID nd_mid, NODE *index, NODE *rvalue, const YYLTYPE *loc) { rb_node_op_asgn1_t *n = NODE_NEWNODE(NODE_OP_ASGN1, rb_node_op_asgn1_t, loc); n->nd_recv = nd_recv; n->nd_mid = nd_mid; n->nd_index = index; n->nd_rvalue = rvalue; return n; } static rb_node_op_asgn2_t * rb_node_op_asgn2_new(struct parser_params *p, NODE *nd_recv, NODE *nd_value, ID nd_vid, ID nd_mid, bool nd_aid, const YYLTYPE *loc) { rb_node_op_asgn2_t *n = NODE_NEWNODE(NODE_OP_ASGN2, rb_node_op_asgn2_t, loc); n->nd_recv = nd_recv; n->nd_value = nd_value; n->nd_vid = nd_vid; n->nd_mid = nd_mid; n->nd_aid = nd_aid; return n; } static rb_node_op_asgn_or_t * rb_node_op_asgn_or_new(struct parser_params *p, NODE *nd_head, NODE *nd_value, const YYLTYPE *loc) { rb_node_op_asgn_or_t *n = NODE_NEWNODE(NODE_OP_ASGN_OR, rb_node_op_asgn_or_t, loc); n->nd_head = nd_head; n->nd_value = nd_value; return n; } static rb_node_op_asgn_and_t * rb_node_op_asgn_and_new(struct parser_params *p, NODE *nd_head, NODE *nd_value, const YYLTYPE *loc) { rb_node_op_asgn_and_t *n = NODE_NEWNODE(NODE_OP_ASGN_AND, rb_node_op_asgn_and_t, loc); n->nd_head = nd_head; n->nd_value = nd_value; return n; } static rb_node_gvar_t * rb_node_gvar_new(struct parser_params *p, ID nd_vid, const YYLTYPE *loc) { rb_node_gvar_t *n = NODE_NEWNODE(NODE_GVAR, rb_node_gvar_t, loc); n->nd_vid = nd_vid; return n; } static rb_node_lvar_t * rb_node_lvar_new(struct parser_params *p, ID nd_vid, const YYLTYPE *loc) { rb_node_lvar_t *n = NODE_NEWNODE(NODE_LVAR, rb_node_lvar_t, loc); n->nd_vid = nd_vid; return n; } static rb_node_dvar_t * rb_node_dvar_new(struct parser_params *p, ID nd_vid, const YYLTYPE *loc) { rb_node_dvar_t *n = NODE_NEWNODE(NODE_DVAR, rb_node_dvar_t, loc); n->nd_vid = nd_vid; return n; } static rb_node_ivar_t * rb_node_ivar_new(struct parser_params *p, ID nd_vid, const YYLTYPE *loc) { rb_node_ivar_t *n = NODE_NEWNODE(NODE_IVAR, rb_node_ivar_t, loc); n->nd_vid = nd_vid; return n; } static rb_node_const_t * rb_node_const_new(struct parser_params *p, ID nd_vid, const YYLTYPE *loc) { rb_node_const_t *n = NODE_NEWNODE(NODE_CONST, rb_node_const_t, loc); n->nd_vid = nd_vid; return n; } static rb_node_cvar_t * rb_node_cvar_new(struct parser_params *p, ID nd_vid, const YYLTYPE *loc) { rb_node_cvar_t *n = NODE_NEWNODE(NODE_CVAR, rb_node_cvar_t, loc); n->nd_vid = nd_vid; return n; } static rb_node_nth_ref_t * rb_node_nth_ref_new(struct parser_params *p, long nd_nth, const YYLTYPE *loc) { rb_node_nth_ref_t *n = NODE_NEWNODE(NODE_NTH_REF, rb_node_nth_ref_t, loc); n->nd_nth = nd_nth; return n; } static rb_node_back_ref_t * rb_node_back_ref_new(struct parser_params *p, long nd_nth, const YYLTYPE *loc) { rb_node_back_ref_t *n = NODE_NEWNODE(NODE_BACK_REF, rb_node_back_ref_t, loc); n->nd_nth = nd_nth; return n; } static rb_node_lit_t * rb_node_lit_new(struct parser_params *p, VALUE nd_lit, const YYLTYPE *loc) { rb_node_lit_t *n = NODE_NEWNODE(NODE_LIT, rb_node_lit_t, loc); n->nd_lit = nd_lit; return n; } static rb_node_integer_t * rb_node_integer_new(struct parser_params *p, char* val, int base, const YYLTYPE *loc) { rb_node_integer_t *n = NODE_NEWNODE(NODE_INTEGER, rb_node_integer_t, loc); n->val = val; n->minus = FALSE; n->base = base; return n; } static rb_node_float_t * rb_node_float_new(struct parser_params *p, char* val, const YYLTYPE *loc) { rb_node_float_t *n = NODE_NEWNODE(NODE_FLOAT, rb_node_float_t, loc); n->val = val; n->minus = FALSE; return n; } static rb_node_rational_t * rb_node_rational_new(struct parser_params *p, char* val, int base, int seen_point, const YYLTYPE *loc) { rb_node_rational_t *n = NODE_NEWNODE(NODE_RATIONAL, rb_node_rational_t, loc); n->val = val; n->minus = FALSE; n->base = base; n->seen_point = seen_point; return n; } static rb_node_imaginary_t * rb_node_imaginary_new(struct parser_params *p, char* val, int base, int seen_point, enum rb_numeric_type numeric_type, const YYLTYPE *loc) { rb_node_imaginary_t *n = NODE_NEWNODE(NODE_IMAGINARY, rb_node_imaginary_t, loc); n->val = val; n->minus = FALSE; n->base = base; n->seen_point = seen_point; n->type = numeric_type; return n; } static rb_node_str_t * rb_node_str_new(struct parser_params *p, rb_parser_string_t *string, const YYLTYPE *loc) { rb_node_str_t *n = NODE_NEWNODE(NODE_STR, rb_node_str_t, loc); n->string = string; return n; } /* TODO; Use union for NODE_DSTR2 */ static rb_node_dstr_t * rb_node_dstr_new0(struct parser_params *p, rb_parser_string_t *string, long nd_alen, NODE *nd_next, const YYLTYPE *loc) { rb_node_dstr_t *n = NODE_NEWNODE(NODE_DSTR, rb_node_dstr_t, loc); n->string = string; n->as.nd_alen = nd_alen; n->nd_next = (rb_node_list_t *)nd_next; return n; } static rb_node_dstr_t * rb_node_dstr_new(struct parser_params *p, rb_parser_string_t *string, const YYLTYPE *loc) { return rb_node_dstr_new0(p, string, 1, 0, loc); } static rb_node_xstr_t * rb_node_xstr_new(struct parser_params *p, rb_parser_string_t *string, const YYLTYPE *loc) { rb_node_xstr_t *n = NODE_NEWNODE(NODE_XSTR, rb_node_xstr_t, loc); n->string = string; return n; } static rb_node_dxstr_t * rb_node_dxstr_new(struct parser_params *p, rb_parser_string_t *string, long nd_alen, NODE *nd_next, const YYLTYPE *loc) { rb_node_dxstr_t *n = NODE_NEWNODE(NODE_DXSTR, rb_node_dxstr_t, loc); n->string = string; n->nd_alen = nd_alen; n->nd_next = (rb_node_list_t *)nd_next; return n; } static rb_node_sym_t * rb_node_sym_new(struct parser_params *p, VALUE str, const YYLTYPE *loc) { rb_node_sym_t *n = NODE_NEWNODE(NODE_SYM, rb_node_sym_t, loc); n->string = rb_str_to_parser_string(p, str); return n; } static rb_node_dsym_t * rb_node_dsym_new(struct parser_params *p, rb_parser_string_t *string, long nd_alen, NODE *nd_next, const YYLTYPE *loc) { rb_node_dsym_t *n = NODE_NEWNODE(NODE_DSYM, rb_node_dsym_t, loc); n->string = string; n->nd_alen = nd_alen; n->nd_next = (rb_node_list_t *)nd_next; return n; } static rb_node_evstr_t * rb_node_evstr_new(struct parser_params *p, NODE *nd_body, const YYLTYPE *loc) { rb_node_evstr_t *n = NODE_NEWNODE(NODE_EVSTR, rb_node_evstr_t, loc); n->nd_body = nd_body; return n; } static rb_node_call_t * rb_node_call_new(struct parser_params *p, NODE *nd_recv, ID nd_mid, NODE *nd_args, const YYLTYPE *loc) { rb_node_call_t *n = NODE_NEWNODE(NODE_CALL, rb_node_call_t, loc); n->nd_recv = nd_recv; n->nd_mid = nd_mid; n->nd_args = nd_args; return n; } static rb_node_opcall_t * rb_node_opcall_new(struct parser_params *p, NODE *nd_recv, ID nd_mid, NODE *nd_args, const YYLTYPE *loc) { rb_node_opcall_t *n = NODE_NEWNODE(NODE_OPCALL, rb_node_opcall_t, loc); n->nd_recv = nd_recv; n->nd_mid = nd_mid; n->nd_args = nd_args; return n; } static rb_node_fcall_t * rb_node_fcall_new(struct parser_params *p, ID nd_mid, NODE *nd_args, const YYLTYPE *loc) { rb_node_fcall_t *n = NODE_NEWNODE(NODE_FCALL, rb_node_fcall_t, loc); n->nd_mid = nd_mid; n->nd_args = nd_args; return n; } static rb_node_qcall_t * rb_node_qcall_new(struct parser_params *p, NODE *nd_recv, ID nd_mid, NODE *nd_args, const YYLTYPE *loc) { rb_node_qcall_t *n = NODE_NEWNODE(NODE_QCALL, rb_node_qcall_t, loc); n->nd_recv = nd_recv; n->nd_mid = nd_mid; n->nd_args = nd_args; return n; } static rb_node_vcall_t * rb_node_vcall_new(struct parser_params *p, ID nd_mid, const YYLTYPE *loc) { rb_node_vcall_t *n = NODE_NEWNODE(NODE_VCALL, rb_node_vcall_t, loc); n->nd_mid = nd_mid; return n; } static rb_node_once_t * rb_node_once_new(struct parser_params *p, NODE *nd_body, const YYLTYPE *loc) { rb_node_once_t *n = NODE_NEWNODE(NODE_ONCE, rb_node_once_t, loc); n->nd_body = nd_body; return n; } static rb_node_args_t * rb_node_args_new(struct parser_params *p, const YYLTYPE *loc) { rb_node_args_t *n = NODE_NEWNODE(NODE_ARGS, rb_node_args_t, loc); MEMZERO(&n->nd_ainfo, struct rb_args_info, 1); return n; } static rb_node_args_aux_t * rb_node_args_aux_new(struct parser_params *p, ID nd_pid, long nd_plen, const YYLTYPE *loc) { rb_node_args_aux_t *n = NODE_NEWNODE(NODE_ARGS_AUX, rb_node_args_aux_t, loc); n->nd_pid = nd_pid; n->nd_plen = nd_plen; n->nd_next = 0; return n; } static rb_node_opt_arg_t * rb_node_opt_arg_new(struct parser_params *p, NODE *nd_body, const YYLTYPE *loc) { rb_node_opt_arg_t *n = NODE_NEWNODE(NODE_OPT_ARG, rb_node_opt_arg_t, loc); n->nd_body = nd_body; n->nd_next = 0; return n; } static rb_node_kw_arg_t * rb_node_kw_arg_new(struct parser_params *p, NODE *nd_body, const YYLTYPE *loc) { rb_node_kw_arg_t *n = NODE_NEWNODE(NODE_KW_ARG, rb_node_kw_arg_t, loc); n->nd_body = nd_body; n->nd_next = 0; return n; } static rb_node_postarg_t * rb_node_postarg_new(struct parser_params *p, NODE *nd_1st, NODE *nd_2nd, const YYLTYPE *loc) { rb_node_postarg_t *n = NODE_NEWNODE(NODE_POSTARG, rb_node_postarg_t, loc); n->nd_1st = nd_1st; n->nd_2nd = nd_2nd; return n; } static rb_node_argscat_t * rb_node_argscat_new(struct parser_params *p, NODE *nd_head, NODE *nd_body, const YYLTYPE *loc) { rb_node_argscat_t *n = NODE_NEWNODE(NODE_ARGSCAT, rb_node_argscat_t, loc); n->nd_head = nd_head; n->nd_body = nd_body; return n; } static rb_node_argspush_t * rb_node_argspush_new(struct parser_params *p, NODE *nd_head, NODE *nd_body, const YYLTYPE *loc) { rb_node_argspush_t *n = NODE_NEWNODE(NODE_ARGSPUSH, rb_node_argspush_t, loc); n->nd_head = nd_head; n->nd_body = nd_body; return n; } static rb_node_splat_t * rb_node_splat_new(struct parser_params *p, NODE *nd_head, const YYLTYPE *loc) { rb_node_splat_t *n = NODE_NEWNODE(NODE_SPLAT, rb_node_splat_t, loc); n->nd_head = nd_head; return n; } static rb_node_block_pass_t * rb_node_block_pass_new(struct parser_params *p, NODE *nd_body, const YYLTYPE *loc) { rb_node_block_pass_t *n = NODE_NEWNODE(NODE_BLOCK_PASS, rb_node_block_pass_t, loc); n->nd_head = 0; n->nd_body = nd_body; return n; } static rb_node_alias_t * rb_node_alias_new(struct parser_params *p, NODE *nd_1st, NODE *nd_2nd, const YYLTYPE *loc) { rb_node_alias_t *n = NODE_NEWNODE(NODE_ALIAS, rb_node_alias_t, loc); n->nd_1st = nd_1st; n->nd_2nd = nd_2nd; return n; } static rb_node_valias_t * rb_node_valias_new(struct parser_params *p, ID nd_alias, ID nd_orig, const YYLTYPE *loc) { rb_node_valias_t *n = NODE_NEWNODE(NODE_VALIAS, rb_node_valias_t, loc); n->nd_alias = nd_alias; n->nd_orig = nd_orig; return n; } static rb_node_undef_t * rb_node_undef_new(struct parser_params *p, NODE *nd_undef, const YYLTYPE *loc) { rb_node_undef_t *n = NODE_NEWNODE(NODE_UNDEF, rb_node_undef_t, loc); n->nd_undef = nd_undef; return n; } static rb_node_errinfo_t * rb_node_errinfo_new(struct parser_params *p, const YYLTYPE *loc) { rb_node_errinfo_t *n = NODE_NEWNODE(NODE_ERRINFO, rb_node_errinfo_t, loc); return n; } static rb_node_defined_t * rb_node_defined_new(struct parser_params *p, NODE *nd_head, const YYLTYPE *loc) { rb_node_defined_t *n = NODE_NEWNODE(NODE_DEFINED, rb_node_defined_t, loc); n->nd_head = nd_head; return n; } static rb_node_postexe_t * rb_node_postexe_new(struct parser_params *p, NODE *nd_body, const YYLTYPE *loc) { rb_node_postexe_t *n = NODE_NEWNODE(NODE_POSTEXE, rb_node_postexe_t, loc); n->nd_body = nd_body; return n; } static rb_node_attrasgn_t * rb_node_attrasgn_new(struct parser_params *p, NODE *nd_recv, ID nd_mid, NODE *nd_args, const YYLTYPE *loc) { rb_node_attrasgn_t *n = NODE_NEWNODE(NODE_ATTRASGN, rb_node_attrasgn_t, loc); n->nd_recv = nd_recv; n->nd_mid = nd_mid; n->nd_args = nd_args; return n; } static rb_node_aryptn_t * rb_node_aryptn_new(struct parser_params *p, NODE *pre_args, NODE *rest_arg, NODE *post_args, const YYLTYPE *loc) { rb_node_aryptn_t *n = NODE_NEWNODE(NODE_ARYPTN, rb_node_aryptn_t, loc); n->nd_pconst = 0; n->pre_args = pre_args; n->rest_arg = rest_arg; n->post_args = post_args; return n; } static rb_node_hshptn_t * rb_node_hshptn_new(struct parser_params *p, NODE *nd_pconst, NODE *nd_pkwargs, NODE *nd_pkwrestarg, const YYLTYPE *loc) { rb_node_hshptn_t *n = NODE_NEWNODE(NODE_HSHPTN, rb_node_hshptn_t, loc); n->nd_pconst = nd_pconst; n->nd_pkwargs = nd_pkwargs; n->nd_pkwrestarg = nd_pkwrestarg; return n; } static rb_node_fndptn_t * rb_node_fndptn_new(struct parser_params *p, NODE *pre_rest_arg, NODE *args, NODE *post_rest_arg, const YYLTYPE *loc) { rb_node_fndptn_t *n = NODE_NEWNODE(NODE_FNDPTN, rb_node_fndptn_t, loc); n->nd_pconst = 0; n->pre_rest_arg = pre_rest_arg; n->args = args; n->post_rest_arg = post_rest_arg; return n; } static rb_node_line_t * rb_node_line_new(struct parser_params *p, const YYLTYPE *loc) { rb_node_line_t *n = NODE_NEWNODE(NODE_LINE, rb_node_line_t, loc); return n; } static rb_node_file_t * rb_node_file_new(struct parser_params *p, VALUE str, const YYLTYPE *loc) { rb_node_file_t *n = NODE_NEWNODE(NODE_FILE, rb_node_file_t, loc); n->path = rb_str_to_parser_string(p, str); return n; } static rb_node_encoding_t * rb_node_encoding_new(struct parser_params *p, const YYLTYPE *loc) { rb_node_encoding_t *n = NODE_NEWNODE(NODE_ENCODING, rb_node_encoding_t, loc); n->enc = p->enc; return n; } static rb_node_cdecl_t * rb_node_cdecl_new(struct parser_params *p, ID nd_vid, NODE *nd_value, NODE *nd_else, const YYLTYPE *loc) { rb_node_cdecl_t *n = NODE_NEWNODE(NODE_CDECL, rb_node_cdecl_t, loc); n->nd_vid = nd_vid; n->nd_value = nd_value; n->nd_else = nd_else; return n; } static rb_node_op_cdecl_t * rb_node_op_cdecl_new(struct parser_params *p, NODE *nd_head, NODE *nd_value, ID nd_aid, const YYLTYPE *loc) { rb_node_op_cdecl_t *n = NODE_NEWNODE(NODE_OP_CDECL, rb_node_op_cdecl_t, loc); n->nd_head = nd_head; n->nd_value = nd_value; n->nd_aid = nd_aid; return n; } static rb_node_error_t * rb_node_error_new(struct parser_params *p, const YYLTYPE *loc) { rb_node_error_t *n = NODE_NEWNODE(NODE_ERROR, rb_node_error_t, loc); return n; } static rb_node_break_t * rb_node_break_new(struct parser_params *p, NODE *nd_stts, const YYLTYPE *loc) { rb_node_break_t *n = NODE_NEWNODE(NODE_BREAK, rb_node_break_t, loc); n->nd_stts = nd_stts; n->nd_chain = 0; return n; } static rb_node_next_t * rb_node_next_new(struct parser_params *p, NODE *nd_stts, const YYLTYPE *loc) { rb_node_next_t *n = NODE_NEWNODE(NODE_NEXT, rb_node_next_t, loc); n->nd_stts = nd_stts; n->nd_chain = 0; return n; } static rb_node_redo_t * rb_node_redo_new(struct parser_params *p, const YYLTYPE *loc) { rb_node_redo_t *n = NODE_NEWNODE(NODE_REDO, rb_node_redo_t, loc); n->nd_chain = 0; return n; } static rb_node_def_temp_t * rb_node_def_temp_new(struct parser_params *p, const YYLTYPE *loc) { rb_node_def_temp_t *n = NODE_NEWNODE((enum node_type)NODE_DEF_TEMP, rb_node_def_temp_t, loc); n->save.cur_arg = p->cur_arg; n->save.numparam_save = 0; n->save.max_numparam = 0; n->save.ctxt = p->ctxt; n->nd_def = 0; n->nd_mid = 0; return n; } static rb_node_def_temp_t * def_head_save(struct parser_params *p, rb_node_def_temp_t *n) { n->save.numparam_save = numparam_push(p); n->save.max_numparam = p->max_numparam; return n; } #ifndef RIPPER static enum node_type nodetype(NODE *node) /* for debug */ { return (enum node_type)nd_type(node); } static int nodeline(NODE *node) { return nd_line(node); } #endif static NODE* newline_node(NODE *node) { if (node) { node = remove_begin(node); nd_set_fl_newline(node); } return node; } static void fixpos(NODE *node, NODE *orig) { if (!node) return; if (!orig) return; nd_set_line(node, nd_line(orig)); } static NODE* block_append(struct parser_params *p, NODE *head, NODE *tail) { NODE *end, *h = head, *nd; if (tail == 0) return head; if (h == 0) return tail; switch (nd_type(h)) { default: h = end = NEW_BLOCK(head, &head->nd_loc); head = end; break; case NODE_BLOCK: end = RNODE_BLOCK(h)->nd_end; break; } nd = RNODE_BLOCK(end)->nd_head; switch (nd_type(nd)) { case NODE_RETURN: case NODE_BREAK: case NODE_NEXT: case NODE_REDO: case NODE_RETRY: rb_warning0L(nd_line(tail), "statement not reached"); break; default: break; } if (!nd_type_p(tail, NODE_BLOCK)) { tail = NEW_BLOCK(tail, &tail->nd_loc); } RNODE_BLOCK(end)->nd_next = tail; RNODE_BLOCK(h)->nd_end = RNODE_BLOCK(tail)->nd_end; nd_set_last_loc(head, nd_last_loc(tail)); return head; } /* append item to the list */ static NODE* list_append(struct parser_params *p, NODE *list, NODE *item) { NODE *last; if (list == 0) return NEW_LIST(item, &item->nd_loc); if (RNODE_LIST(list)->nd_next) { last = RNODE_LIST(RNODE_LIST(list)->nd_next)->as.nd_end; } else { last = list; } RNODE_LIST(list)->as.nd_alen += 1; RNODE_LIST(last)->nd_next = NEW_LIST(item, &item->nd_loc); RNODE_LIST(RNODE_LIST(list)->nd_next)->as.nd_end = RNODE_LIST(last)->nd_next; nd_set_last_loc(list, nd_last_loc(item)); return list; } /* concat two lists */ static NODE* list_concat(NODE *head, NODE *tail) { NODE *last; if (RNODE_LIST(head)->nd_next) { last = RNODE_LIST(RNODE_LIST(head)->nd_next)->as.nd_end; } else { last = head; } RNODE_LIST(head)->as.nd_alen += RNODE_LIST(tail)->as.nd_alen; RNODE_LIST(last)->nd_next = tail; if (RNODE_LIST(tail)->nd_next) { RNODE_LIST(RNODE_LIST(head)->nd_next)->as.nd_end = RNODE_LIST(RNODE_LIST(tail)->nd_next)->as.nd_end; } else { RNODE_LIST(RNODE_LIST(head)->nd_next)->as.nd_end = tail; } nd_set_last_loc(head, nd_last_loc(tail)); return head; } static int literal_concat0(struct parser_params *p, rb_parser_string_t *head, rb_parser_string_t *tail) { if (!tail) return 1; if (!rb_parser_enc_compatible(p, head, tail)) { compile_error(p, "string literal encodings differ (%s / %s)", rb_enc_name(rb_parser_str_get_encoding(head)), rb_enc_name(rb_parser_str_get_encoding(tail))); rb_parser_str_resize(p, head, 0); rb_parser_str_resize(p, tail, 0); return 0; } rb_parser_str_buf_append(p, head, tail); return 1; } static rb_parser_string_t * string_literal_head(struct parser_params *p, enum node_type htype, NODE *head) { if (htype != NODE_DSTR) return false; if (RNODE_DSTR(head)->nd_next) { head = RNODE_LIST(RNODE_LIST(RNODE_DSTR(head)->nd_next)->as.nd_end)->nd_head; if (!head || !nd_type_p(head, NODE_STR)) return false; } rb_parser_string_t *lit = RNODE_DSTR(head)->string; ASSUME(lit != false); return lit; } /* concat two string literals */ static NODE * literal_concat(struct parser_params *p, NODE *head, NODE *tail, const YYLTYPE *loc) { enum node_type htype; rb_parser_string_t *lit; if (!head) return tail; if (!tail) return head; htype = nd_type(head); if (htype == NODE_EVSTR) { head = new_dstr(p, head, loc); htype = NODE_DSTR; } if (p->heredoc_indent > 0) { switch (htype) { case NODE_STR: head = str2dstr(p, head); case NODE_DSTR: return list_append(p, head, tail); default: break; } } switch (nd_type(tail)) { case NODE_STR: if ((lit = string_literal_head(p, htype, head)) != false) { htype = NODE_STR; } else { lit = RNODE_DSTR(head)->string; } if (htype == NODE_STR) { if (!literal_concat0(p, lit, RNODE_STR(tail)->string)) { error: rb_discard_node(p, head); rb_discard_node(p, tail); return 0; } rb_discard_node(p, tail); } else { list_append(p, head, tail); } break; case NODE_DSTR: if (htype == NODE_STR) { if (!literal_concat0(p, RNODE_STR(head)->string, RNODE_DSTR(tail)->string)) goto error; rb_parser_string_free(p, RNODE_DSTR(tail)->string); RNODE_DSTR(tail)->string = RNODE_STR(head)->string; RNODE_STR(head)->string = NULL; rb_discard_node(p, head); head = tail; } else if (!RNODE_DSTR(tail)->string) { append: RNODE_DSTR(head)->as.nd_alen += RNODE_DSTR(tail)->as.nd_alen - 1; if (!RNODE_DSTR(head)->nd_next) { RNODE_DSTR(head)->nd_next = RNODE_DSTR(tail)->nd_next; } else if (RNODE_DSTR(tail)->nd_next) { RNODE_DSTR(RNODE_DSTR(RNODE_DSTR(head)->nd_next)->as.nd_end)->nd_next = RNODE_DSTR(tail)->nd_next; RNODE_DSTR(RNODE_DSTR(head)->nd_next)->as.nd_end = RNODE_DSTR(RNODE_DSTR(tail)->nd_next)->as.nd_end; } rb_discard_node(p, tail); } else if ((lit = string_literal_head(p, htype, head)) != false) { if (!literal_concat0(p, lit, RNODE_DSTR(tail)->string)) goto error; rb_parser_string_free(p, RNODE_DSTR(tail)->string); RNODE_DSTR(tail)->string = 0; goto append; } else { list_concat(head, NEW_LIST2(NEW_STR(RNODE_DSTR(tail)->string, loc), RNODE_DSTR(tail)->as.nd_alen, (NODE *)RNODE_DSTR(tail)->nd_next, loc)); RNODE_DSTR(tail)->string = 0; } break; case NODE_EVSTR: if (htype == NODE_STR) { head = str2dstr(p, head); RNODE_DSTR(head)->as.nd_alen = 1; } list_append(p, head, tail); break; } return head; } static void nd_copy_flag(NODE *new_node, NODE *old_node) { if (nd_fl_newline(old_node)) nd_set_fl_newline(new_node); nd_set_line(new_node, nd_line(old_node)); new_node->nd_loc = old_node->nd_loc; new_node->node_id = old_node->node_id; } static NODE * str2dstr(struct parser_params *p, NODE *node) { NODE *new_node = (NODE *)NODE_NEW_INTERNAL(NODE_DSTR, rb_node_dstr_t); nd_copy_flag(new_node, node); RNODE_DSTR(new_node)->string = RNODE_STR(node)->string; RNODE_DSTR(new_node)->as.nd_alen = 0; RNODE_DSTR(new_node)->nd_next = 0; RNODE_STR(node)->string = 0; return new_node; } static NODE * evstr2dstr(struct parser_params *p, NODE *node) { if (nd_type_p(node, NODE_EVSTR)) { node = new_dstr(p, node, &node->nd_loc); } return node; } static NODE * new_evstr(struct parser_params *p, NODE *node, const YYLTYPE *loc) { NODE *head = node; if (node) { switch (nd_type(node)) { case NODE_STR: return str2dstr(p, node); case NODE_DSTR: break; case NODE_EVSTR: return node; } } return NEW_EVSTR(head, loc); } static NODE * new_dstr(struct parser_params *p, NODE *node, const YYLTYPE *loc) { NODE *dstr = NEW_DSTR(STRING_NEW0(), loc); return list_append(p, dstr, node); } static NODE * call_bin_op(struct parser_params *p, NODE *recv, ID id, NODE *arg1, const YYLTYPE *op_loc, const YYLTYPE *loc) { NODE *expr; value_expr(recv); value_expr(arg1); expr = NEW_OPCALL(recv, id, NEW_LIST(arg1, &arg1->nd_loc), loc); nd_set_line(expr, op_loc->beg_pos.lineno); return expr; } static NODE * call_uni_op(struct parser_params *p, NODE *recv, ID id, const YYLTYPE *op_loc, const YYLTYPE *loc) { NODE *opcall; value_expr(recv); opcall = NEW_OPCALL(recv, id, 0, loc); nd_set_line(opcall, op_loc->beg_pos.lineno); return opcall; } static NODE * new_qcall(struct parser_params* p, ID atype, NODE *recv, ID mid, NODE *args, const YYLTYPE *op_loc, const YYLTYPE *loc) { NODE *qcall = NEW_QCALL(atype, recv, mid, args, loc); nd_set_line(qcall, op_loc->beg_pos.lineno); return qcall; } static NODE* new_command_qcall(struct parser_params* p, ID atype, NODE *recv, ID mid, NODE *args, NODE *block, const YYLTYPE *op_loc, const YYLTYPE *loc) { NODE *ret; if (block) block_dup_check(p, args, block); ret = new_qcall(p, atype, recv, mid, args, op_loc, loc); if (block) ret = method_add_block(p, ret, block, loc); fixpos(ret, recv); return ret; } #define nd_once_body(node) (nd_type_p((node), NODE_ONCE) ? RNODE_ONCE(node)->nd_body : node) static NODE* last_expr_once_body(NODE *node) { if (!node) return 0; return nd_once_body(node); } static NODE* match_op(struct parser_params *p, NODE *node1, NODE *node2, const YYLTYPE *op_loc, const YYLTYPE *loc) { NODE *n; int line = op_loc->beg_pos.lineno; value_expr(node1); value_expr(node2); if ((n = last_expr_once_body(node1)) != 0) { switch (nd_type(n)) { case NODE_DREGX: { NODE *match = NEW_MATCH2(node1, node2, loc); nd_set_line(match, line); return match; } case NODE_LIT: if (RB_TYPE_P(RNODE_LIT(n)->nd_lit, T_REGEXP)) { const VALUE lit = RNODE_LIT(n)->nd_lit; NODE *match = NEW_MATCH2(node1, node2, loc); RNODE_MATCH2(match)->nd_args = reg_named_capture_assign(p, lit, loc); nd_set_line(match, line); return match; } } } if ((n = last_expr_once_body(node2)) != 0) { NODE *match3; switch (nd_type(n)) { case NODE_LIT: if (!RB_TYPE_P(RNODE_LIT(n)->nd_lit, T_REGEXP)) break; /* fallthru */ case NODE_DREGX: match3 = NEW_MATCH3(node2, node1, loc); return match3; } } n = NEW_CALL(node1, tMATCH, NEW_LIST(node2, &node2->nd_loc), loc); nd_set_line(n, line); return n; } # if WARN_PAST_SCOPE static int past_dvar_p(struct parser_params *p, ID id) { struct vtable *past = p->lvtbl->past; while (past) { if (vtable_included(past, id)) return 1; past = past->prev; } return 0; } # endif static int numparam_nested_p(struct parser_params *p) { struct local_vars *local = p->lvtbl; NODE *outer = local->numparam.outer; NODE *inner = local->numparam.inner; if (outer || inner) { NODE *used = outer ? outer : inner; compile_error(p, "numbered parameter is already used in\n" "%s:%d: %s block here", p->ruby_sourcefile, nd_line(used), outer ? "outer" : "inner"); parser_show_error_line(p, &used->nd_loc); return 1; } return 0; } static int numparam_used_p(struct parser_params *p) { NODE *numparam = p->lvtbl->numparam.current; if (numparam) { compile_error(p, "numbered parameter is already used in\n" "%s:%d: current block here", p->ruby_sourcefile, nd_line(numparam)); parser_show_error_line(p, &numparam->nd_loc); return 1; } return 0; } static int it_used_p(struct parser_params *p) { NODE *it = p->lvtbl->it; if (it) { compile_error(p, "'it' is already used in\n" "%s:%d: current block here", p->ruby_sourcefile, nd_line(it)); parser_show_error_line(p, &it->nd_loc); return 1; } return 0; } static NODE* gettable(struct parser_params *p, ID id, const YYLTYPE *loc) { ID *vidp = NULL; NODE *node; switch (id) { case keyword_self: return NEW_SELF(loc); case keyword_nil: return NEW_NIL(loc); case keyword_true: return NEW_TRUE(loc); case keyword_false: return NEW_FALSE(loc); case keyword__FILE__: { VALUE file = p->ruby_sourcefile_string; if (NIL_P(file)) file = rb_str_new(0, 0); node = NEW_FILE(file, loc); } return node; case keyword__LINE__: return NEW_LINE(loc); case keyword__ENCODING__: return NEW_ENCODING(loc); } switch (id_type(id)) { case ID_LOCAL: if (dyna_in_block(p) && dvar_defined_ref(p, id, &vidp)) { if (NUMPARAM_ID_P(id) && (numparam_nested_p(p) || it_used_p(p))) return 0; if (id == p->cur_arg) { compile_error(p, "circular argument reference - %"PRIsWARN, rb_id2str(id)); return 0; } if (vidp) *vidp |= LVAR_USED; node = NEW_DVAR(id, loc); return node; } if (local_id_ref(p, id, &vidp)) { if (id == p->cur_arg) { compile_error(p, "circular argument reference - %"PRIsWARN, rb_id2str(id)); return 0; } if (vidp) *vidp |= LVAR_USED; node = NEW_LVAR(id, loc); return node; } if (dyna_in_block(p) && NUMPARAM_ID_P(id) && parser_numbered_param(p, NUMPARAM_ID_TO_IDX(id))) { if (numparam_nested_p(p) || it_used_p(p)) return 0; node = NEW_DVAR(id, loc); struct local_vars *local = p->lvtbl; if (!local->numparam.current) local->numparam.current = node; return node; } # if WARN_PAST_SCOPE if (!p->ctxt.in_defined && RTEST(ruby_verbose) && past_dvar_p(p, id)) { rb_warning1("possible reference to past scope - %"PRIsWARN, rb_id2str(id)); } # endif /* method call without arguments */ if (dyna_in_block(p) && id == rb_intern("it") && !(DVARS_TERMINAL_P(p->lvtbl->args) || DVARS_TERMINAL_P(p->lvtbl->args->prev))) { if (numparam_used_p(p)) return 0; if (p->max_numparam == ORDINAL_PARAM) { compile_error(p, "ordinary parameter is defined"); return 0; } if (!p->it_id) { p->it_id = internal_id(p); vtable_add(p->lvtbl->args, p->it_id); } NODE *node = NEW_DVAR(p->it_id, loc); if (!p->lvtbl->it) p->lvtbl->it = node; return node; } return NEW_VCALL(id, loc); case ID_GLOBAL: return NEW_GVAR(id, loc); case ID_INSTANCE: return NEW_IVAR(id, loc); case ID_CONST: return NEW_CONST(id, loc); case ID_CLASS: return NEW_CVAR(id, loc); } compile_error(p, "identifier %"PRIsVALUE" is not valid to get", rb_id2str(id)); return 0; } static rb_node_opt_arg_t * opt_arg_append(rb_node_opt_arg_t *opt_list, rb_node_opt_arg_t *opt) { rb_node_opt_arg_t *opts = opt_list; RNODE(opts)->nd_loc.end_pos = RNODE(opt)->nd_loc.end_pos; while (opts->nd_next) { opts = opts->nd_next; RNODE(opts)->nd_loc.end_pos = RNODE(opt)->nd_loc.end_pos; } opts->nd_next = opt; return opt_list; } static rb_node_kw_arg_t * kwd_append(rb_node_kw_arg_t *kwlist, rb_node_kw_arg_t *kw) { if (kwlist) { /* Assume rb_node_kw_arg_t and rb_node_opt_arg_t has same structure */ opt_arg_append(RNODE_OPT_ARG(kwlist), RNODE_OPT_ARG(kw)); } return kwlist; } static NODE * new_defined(struct parser_params *p, NODE *expr, const YYLTYPE *loc) { NODE *n = expr; while (n) { if (nd_type_p(n, NODE_BEGIN)) { n = RNODE_BEGIN(n)->nd_body; } else if (nd_type_p(n, NODE_BLOCK) && RNODE_BLOCK(n)->nd_end == n) { n = RNODE_BLOCK(n)->nd_head; } else { break; } } return NEW_DEFINED(n, loc); } static NODE* str_to_sym_node(struct parser_params *p, NODE *node, const YYLTYPE *loc) { VALUE lit; rb_parser_string_t *str = RNODE_STR(node)->string; if (rb_parser_enc_str_coderange(p, str) == RB_PARSER_ENC_CODERANGE_BROKEN) { yyerror1(loc, "invalid symbol"); lit = STR_NEW0(); } else { lit = rb_str_new_parser_string(str); } return NEW_SYM(lit, loc); } static NODE* symbol_append(struct parser_params *p, NODE *symbols, NODE *symbol) { enum node_type type = nd_type(symbol); switch (type) { case NODE_DSTR: nd_set_type(symbol, NODE_DSYM); break; case NODE_STR: symbol = str_to_sym_node(p, symbol, &RNODE(symbol)->nd_loc); break; default: compile_error(p, "unexpected node as symbol: %s", parser_node_name(type)); } return list_append(p, symbols, symbol); } static NODE * new_regexp(struct parser_params *p, NODE *node, int options, const YYLTYPE *loc) { struct RNode_LIST *list; NODE *prev; if (!node) { node = NEW_LIT(reg_compile(p, STR_NEW0(), options), loc); RB_OBJ_WRITTEN(p->ast, Qnil, RNODE_LIT(node)->nd_lit); return node; } switch (nd_type(node)) { case NODE_STR: { VALUE src = rb_node_str_string_val(node); node = NEW_LIT(reg_compile(p, src, options), loc); RB_OBJ_WRITTEN(p->ast, Qnil, RNODE_LIT(node)->nd_lit); } break; default: node = NEW_DSTR0(STRING_NEW0(), 1, NEW_LIST(node, loc), loc); /* fall through */ case NODE_DSTR: nd_set_type(node, NODE_DREGX); nd_set_loc(node, loc); RNODE_DREGX(node)->nd_cflag = options & RE_OPTION_MASK; if (RNODE_DREGX(node)->string) reg_fragment_check(p, RNODE_DREGX(node)->string, options); for (list = RNODE_DREGX(prev = node)->nd_next; list; list = RNODE_LIST(list->nd_next)) { NODE *frag = list->nd_head; enum node_type type = nd_type(frag); if (type == NODE_STR || (type == NODE_DSTR && !RNODE_DSTR(frag)->nd_next)) { rb_parser_string_t *tail = RNODE_STR(frag)->string; if (reg_fragment_check(p, tail, options) && prev && RNODE_DREGX(prev)->string) { rb_parser_string_t *lit = prev == node ? RNODE_DREGX(prev)->string : RNODE_STR(RNODE_LIST(prev)->nd_head)->string; if (!literal_concat0(p, lit, tail)) { return NEW_NIL(loc); /* dummy node on error */ } rb_parser_str_resize(p, tail, 0); RNODE_LIST(prev)->nd_next = list->nd_next; rb_discard_node(p, list->nd_head); rb_discard_node(p, (NODE *)list); list = RNODE_LIST(prev); } else { prev = (NODE *)list; } } else { prev = 0; } } if (!RNODE_DREGX(node)->nd_next) { VALUE src = rb_node_dregx_string_val(node); /* Check string is valid regex */ reg_compile(p, src, options); } if (options & RE_OPTION_ONCE) { node = NEW_ONCE(node, loc); } break; } return node; } static rb_node_kw_arg_t * new_kw_arg(struct parser_params *p, NODE *k, const YYLTYPE *loc) { if (!k) return 0; return NEW_KW_ARG((k), loc); } static NODE * new_xstring(struct parser_params *p, NODE *node, const YYLTYPE *loc) { if (!node) { NODE *xstr = NEW_XSTR(STRING_NEW0(), loc); return xstr; } switch (nd_type(node)) { case NODE_STR: nd_set_type(node, NODE_XSTR); nd_set_loc(node, loc); break; case NODE_DSTR: nd_set_type(node, NODE_DXSTR); nd_set_loc(node, loc); break; default: node = NEW_DXSTR(0, 1, NEW_LIST(node, loc), loc); break; } return node; } #ifndef RIPPER VALUE rb_parser_node_case_when_optimizable_literal(struct parser_params *p, const NODE *const node) { return rb_node_case_when_optimizable_literal(node); } #endif static void check_literal_when(struct parser_params *p, NODE *arg, const YYLTYPE *loc) { VALUE lit; if (!arg || !p->case_labels) return; lit = rb_parser_node_case_when_optimizable_literal(p, arg); if (UNDEF_P(lit)) return; if (NIL_P(p->case_labels)) { p->case_labels = rb_obj_hide(rb_hash_new()); } else { VALUE line = rb_hash_lookup(p->case_labels, lit); if (!NIL_P(line)) { rb_warning1("duplicated 'when' clause with line %d is ignored", WARN_IVAL(line)); return; } } rb_hash_aset(p->case_labels, lit, INT2NUM(p->ruby_sourceline)); } #ifdef RIPPER static int id_is_var(struct parser_params *p, ID id) { if (is_notop_id(id)) { switch (id & ID_SCOPE_MASK) { case ID_GLOBAL: case ID_INSTANCE: case ID_CONST: case ID_CLASS: return 1; case ID_LOCAL: if (dyna_in_block(p)) { if (NUMPARAM_ID_P(id) || dvar_defined(p, id)) return 1; } if (local_id(p, id)) return 1; /* method call without arguments */ return 0; } } compile_error(p, "identifier %"PRIsVALUE" is not valid to get", rb_id2str(id)); return 0; } #endif static inline enum lex_state_e parser_set_lex_state(struct parser_params *p, enum lex_state_e ls, int line) { if (p->debug) { ls = rb_parser_trace_lex_state(p, p->lex.state, ls, line); } return p->lex.state = ls; } #ifndef RIPPER static void flush_debug_buffer(struct parser_params *p, VALUE out, VALUE str) { VALUE mesg = p->debug_buffer; if (!NIL_P(mesg) && RSTRING_LEN(mesg)) { p->debug_buffer = Qnil; rb_io_puts(1, &mesg, out); } if (!NIL_P(str) && RSTRING_LEN(str)) { rb_io_write(p->debug_output, str); } } static const char rb_parser_lex_state_names[][8] = { "BEG", "END", "ENDARG", "ENDFN", "ARG", "CMDARG", "MID", "FNAME", "DOT", "CLASS", "LABEL", "LABELED","FITEM", }; static VALUE append_lex_state_name(struct parser_params *p, enum lex_state_e state, VALUE buf) { int i, sep = 0; unsigned int mask = 1; static const char none[] = "NONE"; for (i = 0; i < EXPR_MAX_STATE; ++i, mask <<= 1) { if ((unsigned)state & mask) { if (sep) { rb_str_cat(buf, "|", 1); } sep = 1; rb_str_cat_cstr(buf, rb_parser_lex_state_names[i]); } } if (!sep) { rb_str_cat(buf, none, sizeof(none)-1); } return buf; } enum lex_state_e rb_parser_trace_lex_state(struct parser_params *p, enum lex_state_e from, enum lex_state_e to, int line) { VALUE mesg; mesg = rb_str_new_cstr("lex_state: "); append_lex_state_name(p, from, mesg); rb_str_cat_cstr(mesg, " -> "); append_lex_state_name(p, to, mesg); rb_str_catf(mesg, " at line %d\n", line); flush_debug_buffer(p, p->debug_output, mesg); return to; } VALUE rb_parser_lex_state_name(struct parser_params *p, enum lex_state_e state) { return rb_fstring(append_lex_state_name(p, state, rb_str_new(0, 0))); } static void append_bitstack_value(struct parser_params *p, stack_type stack, VALUE mesg) { if (stack == 0) { rb_str_cat_cstr(mesg, "0"); } else { stack_type mask = (stack_type)1U << (CHAR_BIT * sizeof(stack_type) - 1); for (; mask && !(stack & mask); mask >>= 1) continue; for (; mask; mask >>= 1) rb_str_cat(mesg, stack & mask ? "1" : "0", 1); } } void rb_parser_show_bitstack(struct parser_params *p, stack_type stack, const char *name, int line) { VALUE mesg = rb_sprintf("%s: ", name); append_bitstack_value(p, stack, mesg); rb_str_catf(mesg, " at line %d\n", line); flush_debug_buffer(p, p->debug_output, mesg); } void rb_parser_fatal(struct parser_params *p, const char *fmt, ...) { va_list ap; VALUE mesg = rb_str_new_cstr("internal parser error: "); va_start(ap, fmt); rb_str_vcatf(mesg, fmt, ap); va_end(ap); yyerror0(RSTRING_PTR(mesg)); RB_GC_GUARD(mesg); mesg = rb_str_new(0, 0); append_lex_state_name(p, p->lex.state, mesg); compile_error(p, "lex.state: %"PRIsVALUE, mesg); rb_str_resize(mesg, 0); append_bitstack_value(p, p->cond_stack, mesg); compile_error(p, "cond_stack: %"PRIsVALUE, mesg); rb_str_resize(mesg, 0); append_bitstack_value(p, p->cmdarg_stack, mesg); compile_error(p, "cmdarg_stack: %"PRIsVALUE, mesg); if (p->debug_output == rb_ractor_stdout()) p->debug_output = rb_ractor_stderr(); p->debug = TRUE; } static YYLTYPE * rb_parser_set_pos(YYLTYPE *yylloc, int sourceline, int beg_pos, int end_pos) { yylloc->beg_pos.lineno = sourceline; yylloc->beg_pos.column = beg_pos; yylloc->end_pos.lineno = sourceline; yylloc->end_pos.column = end_pos; return yylloc; } YYLTYPE * rb_parser_set_location_from_strterm_heredoc(struct parser_params *p, rb_strterm_heredoc_t *here, YYLTYPE *yylloc) { int sourceline = here->sourceline; int beg_pos = (int)here->offset - here->quote - (rb_strlen_lit("<<-") - !(here->func & STR_FUNC_INDENT)); int end_pos = (int)here->offset + here->length + here->quote; return rb_parser_set_pos(yylloc, sourceline, beg_pos, end_pos); } YYLTYPE * rb_parser_set_location_of_delayed_token(struct parser_params *p, YYLTYPE *yylloc) { yylloc->beg_pos.lineno = p->delayed.beg_line; yylloc->beg_pos.column = p->delayed.beg_col; yylloc->end_pos.lineno = p->delayed.end_line; yylloc->end_pos.column = p->delayed.end_col; return yylloc; } YYLTYPE * rb_parser_set_location_of_heredoc_end(struct parser_params *p, YYLTYPE *yylloc) { int sourceline = p->ruby_sourceline; int beg_pos = (int)(p->lex.ptok - p->lex.pbeg); int end_pos = (int)(p->lex.pend - p->lex.pbeg); return rb_parser_set_pos(yylloc, sourceline, beg_pos, end_pos); } YYLTYPE * rb_parser_set_location_of_dummy_end(struct parser_params *p, YYLTYPE *yylloc) { yylloc->end_pos = yylloc->beg_pos; return yylloc; } YYLTYPE * rb_parser_set_location_of_none(struct parser_params *p, YYLTYPE *yylloc) { int sourceline = p->ruby_sourceline; int beg_pos = (int)(p->lex.ptok - p->lex.pbeg); int end_pos = (int)(p->lex.ptok - p->lex.pbeg); return rb_parser_set_pos(yylloc, sourceline, beg_pos, end_pos); } YYLTYPE * rb_parser_set_location(struct parser_params *p, YYLTYPE *yylloc) { int sourceline = p->ruby_sourceline; int beg_pos = (int)(p->lex.ptok - p->lex.pbeg); int end_pos = (int)(p->lex.pcur - p->lex.pbeg); return rb_parser_set_pos(yylloc, sourceline, beg_pos, end_pos); } #endif /* !RIPPER */ static int assignable0(struct parser_params *p, ID id, const char **err) { if (!id) return -1; switch (id) { case keyword_self: *err = "Can't change the value of self"; return -1; case keyword_nil: *err = "Can't assign to nil"; return -1; case keyword_true: *err = "Can't assign to true"; return -1; case keyword_false: *err = "Can't assign to false"; return -1; case keyword__FILE__: *err = "Can't assign to __FILE__"; return -1; case keyword__LINE__: *err = "Can't assign to __LINE__"; return -1; case keyword__ENCODING__: *err = "Can't assign to __ENCODING__"; return -1; } switch (id_type(id)) { case ID_LOCAL: if (dyna_in_block(p)) { if (p->max_numparam > NO_PARAM && NUMPARAM_ID_P(id)) { compile_error(p, "Can't assign to numbered parameter _%d", NUMPARAM_ID_TO_IDX(id)); return -1; } if (dvar_curr(p, id)) return NODE_DASGN; if (dvar_defined(p, id)) return NODE_DASGN; if (local_id(p, id)) return NODE_LASGN; dyna_var(p, id); return NODE_DASGN; } else { if (!local_id(p, id)) local_var(p, id); return NODE_LASGN; } break; case ID_GLOBAL: return NODE_GASGN; case ID_INSTANCE: return NODE_IASGN; case ID_CONST: if (!p->ctxt.in_def) return NODE_CDECL; *err = "dynamic constant assignment"; return -1; case ID_CLASS: return NODE_CVASGN; default: compile_error(p, "identifier %"PRIsVALUE" is not valid to set", rb_id2str(id)); } return -1; } static NODE* assignable(struct parser_params *p, ID id, NODE *val, const YYLTYPE *loc) { const char *err = 0; int node_type = assignable0(p, id, &err); switch (node_type) { case NODE_DASGN: return NEW_DASGN(id, val, loc); case NODE_LASGN: return NEW_LASGN(id, val, loc); case NODE_GASGN: return NEW_GASGN(id, val, loc); case NODE_IASGN: return NEW_IASGN(id, val, loc); case NODE_CDECL: return NEW_CDECL(id, val, 0, loc); case NODE_CVASGN: return NEW_CVASGN(id, val, loc); } /* TODO: FIXME */ #ifndef RIPPER if (err) yyerror1(loc, err); #endif return NEW_ERROR(loc); } #ifdef RIPPER static VALUE ripper_assignable(struct parser_params *p, ID id, VALUE lhs) { const char *err = 0; assignable0(p, id, &err); if (err) lhs = assign_error(p, err, lhs); return lhs; } #endif static int is_private_local_id(struct parser_params *p, ID name) { VALUE s; if (name == idUScore) return 1; if (!is_local_id(name)) return 0; s = rb_id2str(name); if (!s) return 0; return RSTRING_PTR(s)[0] == '_'; } static int shadowing_lvar_0(struct parser_params *p, ID name) { if (dyna_in_block(p)) { if (dvar_curr(p, name)) { if (is_private_local_id(p, name)) return 1; yyerror0("duplicated argument name"); } else if (dvar_defined(p, name) || local_id(p, name)) { vtable_add(p->lvtbl->vars, name); if (p->lvtbl->used) { vtable_add(p->lvtbl->used, (ID)p->ruby_sourceline | LVAR_USED); } return 0; } } else { if (local_id(p, name)) { if (is_private_local_id(p, name)) return 1; yyerror0("duplicated argument name"); } } return 1; } static ID shadowing_lvar(struct parser_params *p, ID name) { shadowing_lvar_0(p, name); return name; } static void new_bv(struct parser_params *p, ID name) { if (!name) return; if (!is_local_id(name)) { compile_error(p, "invalid local variable - %"PRIsVALUE, rb_id2str(name)); return; } if (!shadowing_lvar_0(p, name)) return; dyna_var(p, name); } static NODE * aryset(struct parser_params *p, NODE *recv, NODE *idx, const YYLTYPE *loc) { return NEW_ATTRASGN(recv, tASET, idx, loc); } static void block_dup_check(struct parser_params *p, NODE *node1, NODE *node2) { if (node2 && node1 && nd_type_p(node1, NODE_BLOCK_PASS)) { compile_error(p, "both block arg and actual block given"); } } static NODE * attrset(struct parser_params *p, NODE *recv, ID atype, ID id, const YYLTYPE *loc) { if (!CALL_Q_P(atype)) id = rb_id_attrset(id); return NEW_ATTRASGN(recv, id, 0, loc); } static void rb_backref_error(struct parser_params *p, NODE *node) { switch (nd_type(node)) { case NODE_NTH_REF: compile_error(p, "Can't set variable $%ld", RNODE_NTH_REF(node)->nd_nth); break; case NODE_BACK_REF: compile_error(p, "Can't set variable $%c", (int)RNODE_BACK_REF(node)->nd_nth); break; } } #ifdef RIPPER static VALUE defs(struct parser_params *p, VALUE head, VALUE args, VALUE bodystmt) { return dispatch5(defs, rb_ary_entry(head, 0), /* nd_recv */ rb_ary_entry(head, 1), /* dot_or_colon */ rb_ary_entry(head, 2), /* nd_mid */ args, bodystmt); } static VALUE backref_error(struct parser_params *p, NODE *node, VALUE expr) { VALUE mesg = rb_str_new_cstr("Can't set variable "); switch (nd_type(node)) { case NODE_NTH_REF: rb_str_catf(mesg, "$%ld", RNODE_NTH_REF(node)->nd_nth); break; case NODE_BACK_REF: rb_str_catf(mesg, "$%c", (int)RNODE_BACK_REF(node)->nd_nth); break; } return dispatch2(assign_error, mesg, expr); } #endif static NODE * arg_append(struct parser_params *p, NODE *node1, NODE *node2, const YYLTYPE *loc) { if (!node1) return NEW_LIST(node2, &node2->nd_loc); switch (nd_type(node1)) { case NODE_LIST: return list_append(p, node1, node2); case NODE_BLOCK_PASS: RNODE_BLOCK_PASS(node1)->nd_head = arg_append(p, RNODE_BLOCK_PASS(node1)->nd_head, node2, loc); node1->nd_loc.end_pos = RNODE_BLOCK_PASS(node1)->nd_head->nd_loc.end_pos; return node1; case NODE_ARGSPUSH: RNODE_ARGSPUSH(node1)->nd_body = list_append(p, NEW_LIST(RNODE_ARGSPUSH(node1)->nd_body, &RNODE_ARGSPUSH(node1)->nd_body->nd_loc), node2); node1->nd_loc.end_pos = RNODE_ARGSPUSH(node1)->nd_body->nd_loc.end_pos; nd_set_type(node1, NODE_ARGSCAT); return node1; case NODE_ARGSCAT: if (!nd_type_p(RNODE_ARGSCAT(node1)->nd_body, NODE_LIST)) break; RNODE_ARGSCAT(node1)->nd_body = list_append(p, RNODE_ARGSCAT(node1)->nd_body, node2); node1->nd_loc.end_pos = RNODE_ARGSCAT(node1)->nd_body->nd_loc.end_pos; return node1; } return NEW_ARGSPUSH(node1, node2, loc); } static NODE * arg_concat(struct parser_params *p, NODE *node1, NODE *node2, const YYLTYPE *loc) { if (!node2) return node1; switch (nd_type(node1)) { case NODE_BLOCK_PASS: if (RNODE_BLOCK_PASS(node1)->nd_head) RNODE_BLOCK_PASS(node1)->nd_head = arg_concat(p, RNODE_BLOCK_PASS(node1)->nd_head, node2, loc); else RNODE_LIST(node1)->nd_head = NEW_LIST(node2, loc); return node1; case NODE_ARGSPUSH: if (!nd_type_p(node2, NODE_LIST)) break; RNODE_ARGSPUSH(node1)->nd_body = list_concat(NEW_LIST(RNODE_ARGSPUSH(node1)->nd_body, loc), node2); nd_set_type(node1, NODE_ARGSCAT); return node1; case NODE_ARGSCAT: if (!nd_type_p(node2, NODE_LIST) || !nd_type_p(RNODE_ARGSCAT(node1)->nd_body, NODE_LIST)) break; RNODE_ARGSCAT(node1)->nd_body = list_concat(RNODE_ARGSCAT(node1)->nd_body, node2); return node1; } return NEW_ARGSCAT(node1, node2, loc); } static NODE * last_arg_append(struct parser_params *p, NODE *args, NODE *last_arg, const YYLTYPE *loc) { NODE *n1; if ((n1 = splat_array(args)) != 0) { return list_append(p, n1, last_arg); } return arg_append(p, args, last_arg, loc); } static NODE * rest_arg_append(struct parser_params *p, NODE *args, NODE *rest_arg, const YYLTYPE *loc) { NODE *n1; if ((nd_type_p(rest_arg, NODE_LIST)) && (n1 = splat_array(args)) != 0) { return list_concat(n1, rest_arg); } return arg_concat(p, args, rest_arg, loc); } static NODE * splat_array(NODE* node) { if (nd_type_p(node, NODE_SPLAT)) node = RNODE_SPLAT(node)->nd_head; if (nd_type_p(node, NODE_LIST)) return node; return 0; } static void mark_lvar_used(struct parser_params *p, NODE *rhs) { ID *vidp = NULL; if (!rhs) return; switch (nd_type(rhs)) { case NODE_LASGN: if (local_id_ref(p, RNODE_LASGN(rhs)->nd_vid, &vidp)) { if (vidp) *vidp |= LVAR_USED; } break; case NODE_DASGN: if (dvar_defined_ref(p, RNODE_DASGN(rhs)->nd_vid, &vidp)) { if (vidp) *vidp |= LVAR_USED; } break; #if 0 case NODE_MASGN: for (rhs = rhs->nd_head; rhs; rhs = rhs->nd_next) { mark_lvar_used(p, rhs->nd_head); } break; #endif } } static NODE * const_decl_path(struct parser_params *p, NODE **dest) { NODE *n = *dest; if (!nd_type_p(n, NODE_CALL)) { const YYLTYPE *loc = &n->nd_loc; VALUE path = rb_node_const_decl_val(n); *dest = n = NEW_LIT(path, loc); RB_OBJ_WRITTEN(p->ast, Qnil, RNODE_LIT(n)->nd_lit); } return n; } static NODE * make_shareable_node(struct parser_params *p, NODE *value, bool copy, const YYLTYPE *loc) { NODE *fcore = NEW_LIT(rb_mRubyVMFrozenCore, loc); if (copy) { return NEW_CALL(fcore, rb_intern("make_shareable_copy"), NEW_LIST(value, loc), loc); } else { return NEW_CALL(fcore, rb_intern("make_shareable"), NEW_LIST(value, loc), loc); } } static NODE * ensure_shareable_node(struct parser_params *p, NODE **dest, NODE *value, const YYLTYPE *loc) { NODE *fcore = NEW_LIT(rb_mRubyVMFrozenCore, loc); NODE *args = NEW_LIST(value, loc); args = list_append(p, args, const_decl_path(p, dest)); return NEW_CALL(fcore, rb_intern("ensure_shareable"), args, loc); } static int is_static_content(NODE *node); static VALUE shareable_literal_value(struct parser_params *p, NODE *node) { if (!node) return Qnil; enum node_type type = nd_type(node); switch (type) { case NODE_TRUE: return Qtrue; case NODE_FALSE: return Qfalse; case NODE_NIL: return Qnil; case NODE_SYM: return rb_node_sym_string_val(node); case NODE_LINE: return rb_node_line_lineno_val(node); case NODE_INTEGER: return rb_node_integer_literal_val(node); case NODE_FLOAT: return rb_node_float_literal_val(node); case NODE_RATIONAL: return rb_node_rational_literal_val(node); case NODE_IMAGINARY: return rb_node_imaginary_literal_val(node); case NODE_ENCODING: return rb_node_encoding_val(node); case NODE_LIT: return RNODE_LIT(node)->nd_lit; default: return Qundef; } } #ifndef SHAREABLE_BARE_EXPRESSION #define SHAREABLE_BARE_EXPRESSION 1 #endif static NODE * shareable_literal_constant(struct parser_params *p, enum shareability shareable, NODE **dest, NODE *value, const YYLTYPE *loc, size_t level) { # define shareable_literal_constant_next(n) \ shareable_literal_constant(p, shareable, dest, (n), &(n)->nd_loc, level+1) VALUE lit = Qnil; if (!value) return 0; enum node_type type = nd_type(value); switch (type) { case NODE_TRUE: case NODE_FALSE: case NODE_NIL: case NODE_LIT: case NODE_SYM: case NODE_LINE: case NODE_INTEGER: case NODE_FLOAT: case NODE_RATIONAL: case NODE_IMAGINARY: case NODE_ENCODING: return value; case NODE_DSTR: if (shareable == shareable_literal) { value = NEW_CALL(value, idUMinus, 0, loc); } return value; case NODE_STR: lit = rb_fstring(rb_node_str_string_val(value)); value = NEW_LIT(lit, loc); RB_OBJ_WRITE(p->ast, &RNODE_LIT(value)->nd_lit, lit); return value; case NODE_FILE: lit = rb_fstring(rb_node_file_path_val(value)); value = NEW_LIT(lit, loc); RB_OBJ_WRITTEN(p->ast, Qnil, RNODE_LIT(value)->nd_lit); return value; case NODE_ZLIST: lit = rb_ary_new(); OBJ_FREEZE_RAW(lit); NODE *n = NEW_LIT(lit, loc); RB_OBJ_WRITTEN(p->ast, Qnil, RNODE_LIT(n)->nd_lit); return n; case NODE_LIST: lit = rb_ary_new(); for (NODE *n = value; n; n = RNODE_LIST(n)->nd_next) { NODE *elt = RNODE_LIST(n)->nd_head; if (elt) { elt = shareable_literal_constant_next(elt); if (elt) { RNODE_LIST(n)->nd_head = elt; } else if (RTEST(lit)) { rb_ary_clear(lit); lit = Qfalse; } } if (RTEST(lit)) { VALUE e = shareable_literal_value(p, elt); if (!UNDEF_P(e)) { rb_ary_push(lit, e); } else { rb_ary_clear(lit); lit = Qnil; /* make shareable at runtime */ } } } break; case NODE_HASH: if (!RNODE_HASH(value)->nd_brace) return 0; lit = rb_hash_new(); for (NODE *n = RNODE_HASH(value)->nd_head; n; n = RNODE_LIST(RNODE_LIST(n)->nd_next)->nd_next) { NODE *key = RNODE_LIST(n)->nd_head; NODE *val = RNODE_LIST(RNODE_LIST(n)->nd_next)->nd_head; if (key) { key = shareable_literal_constant_next(key); if (key) { RNODE_LIST(n)->nd_head = key; } else if (RTEST(lit)) { rb_hash_clear(lit); lit = Qfalse; } } if (val) { val = shareable_literal_constant_next(val); if (val) { RNODE_LIST(RNODE_LIST(n)->nd_next)->nd_head = val; } else if (RTEST(lit)) { rb_hash_clear(lit); lit = Qfalse; } } if (RTEST(lit)) { VALUE k = shareable_literal_value(p, key); VALUE v = shareable_literal_value(p, val); if (!UNDEF_P(k) && !UNDEF_P(v)) { rb_hash_aset(lit, k, v); } else { rb_hash_clear(lit); lit = Qnil; /* make shareable at runtime */ } } } break; default: if (shareable == shareable_literal && (SHAREABLE_BARE_EXPRESSION || level > 0)) { return ensure_shareable_node(p, dest, value, loc); } return 0; } /* Array or Hash */ if (!lit) return 0; if (NIL_P(lit)) { // if shareable_literal, all elements should have been ensured // as shareable value = make_shareable_node(p, value, false, loc); } else { value = NEW_LIT(rb_ractor_make_shareable(lit), loc); RB_OBJ_WRITTEN(p->ast, Qnil, RNODE_LIT(value)->nd_lit); } return value; # undef shareable_literal_constant_next } static NODE * shareable_constant_value(struct parser_params *p, enum shareability shareable, NODE *lhs, NODE *value, const YYLTYPE *loc) { if (!value) return 0; switch (shareable) { case shareable_none: return value; case shareable_literal: { NODE *lit = shareable_literal_constant(p, shareable, &lhs, value, loc, 0); if (lit) return lit; return value; } break; case shareable_copy: case shareable_everything: { NODE *lit = shareable_literal_constant(p, shareable, &lhs, value, loc, 0); if (lit) return lit; return make_shareable_node(p, value, shareable == shareable_copy, loc); } break; default: UNREACHABLE_RETURN(0); } } static NODE * node_assign(struct parser_params *p, NODE *lhs, NODE *rhs, struct lex_context ctxt, const YYLTYPE *loc) { if (!lhs) return 0; switch (nd_type(lhs)) { case NODE_CDECL: rhs = shareable_constant_value(p, ctxt.shareable_constant_value, lhs, rhs, loc); /* fallthru */ case NODE_GASGN: case NODE_IASGN: case NODE_LASGN: case NODE_DASGN: case NODE_MASGN: case NODE_CVASGN: set_nd_value(p, lhs, rhs); nd_set_loc(lhs, loc); break; case NODE_ATTRASGN: RNODE_ATTRASGN(lhs)->nd_args = arg_append(p, RNODE_ATTRASGN(lhs)->nd_args, rhs, loc); nd_set_loc(lhs, loc); break; default: /* should not happen */ break; } return lhs; } static NODE * value_expr_check(struct parser_params *p, NODE *node) { NODE *void_node = 0, *vn; if (!node) { rb_warning0("empty expression"); } while (node) { switch (nd_type(node)) { case NODE_ENSURE: vn = RNODE_ENSURE(node)->nd_head; node = RNODE_ENSURE(node)->nd_ensr; /* nd_ensr should not be NULL, check it out next */ if (vn && (vn = value_expr_check(p, vn))) { goto found; } break; case NODE_RESCUE: /* void only if all children are void */ vn = RNODE_RESCUE(node)->nd_head; if (!vn || !(vn = value_expr_check(p, vn))) return NULL; if (!void_node) void_node = vn; for (NODE *r = RNODE_RESCUE(node)->nd_resq; r; r = RNODE_RESBODY(r)->nd_next) { if (!nd_type_p(r, NODE_RESBODY)) { compile_error(p, "unexpected node"); return NULL; } if (!(vn = value_expr_check(p, RNODE_RESBODY(r)->nd_body))) { void_node = 0; break; } if (!void_node) void_node = vn; } node = RNODE_RESCUE(node)->nd_else; if (!node) return void_node; break; case NODE_RETURN: case NODE_BREAK: case NODE_NEXT: case NODE_REDO: case NODE_RETRY: goto found; case NODE_CASE3: if (!RNODE_CASE3(node)->nd_body || !nd_type_p(RNODE_CASE3(node)->nd_body, NODE_IN)) { compile_error(p, "unexpected node"); return NULL; } if (RNODE_IN(RNODE_CASE3(node)->nd_body)->nd_body) { return NULL; } /* single line pattern matching with "=>" operator */ goto found; case NODE_BLOCK: while (RNODE_BLOCK(node)->nd_next) { node = RNODE_BLOCK(node)->nd_next; } node = RNODE_BLOCK(node)->nd_head; break; case NODE_BEGIN: node = RNODE_BEGIN(node)->nd_body; break; case NODE_IF: case NODE_UNLESS: if (!RNODE_IF(node)->nd_body) { return NULL; } else if (!RNODE_IF(node)->nd_else) { return NULL; } vn = value_expr_check(p, RNODE_IF(node)->nd_body); if (!vn) return NULL; if (!void_node) void_node = vn; node = RNODE_IF(node)->nd_else; break; case NODE_AND: case NODE_OR: node = RNODE_AND(node)->nd_1st; break; case NODE_LASGN: case NODE_DASGN: case NODE_MASGN: mark_lvar_used(p, node); return NULL; default: return NULL; } } return NULL; found: /* return the first found node */ return void_node ? void_node : node; } static int value_expr_gen(struct parser_params *p, NODE *node) { NODE *void_node = value_expr_check(p, node); if (void_node) { yyerror1(&void_node->nd_loc, "void value expression"); /* or "control never reach"? */ return FALSE; } return TRUE; } static void void_expr(struct parser_params *p, NODE *node) { const char *useless = 0; if (!RTEST(ruby_verbose)) return; if (!node || !(node = nd_once_body(node))) return; switch (nd_type(node)) { case NODE_OPCALL: switch (RNODE_OPCALL(node)->nd_mid) { case '+': case '-': case '*': case '/': case '%': case tPOW: case tUPLUS: case tUMINUS: case '|': case '^': case '&': case tCMP: case '>': case tGEQ: case '<': case tLEQ: case tEQ: case tNEQ: useless = rb_id2name(RNODE_OPCALL(node)->nd_mid); break; } break; case NODE_LVAR: case NODE_DVAR: case NODE_GVAR: case NODE_IVAR: case NODE_CVAR: case NODE_NTH_REF: case NODE_BACK_REF: useless = "a variable"; break; case NODE_CONST: useless = "a constant"; break; case NODE_LIT: case NODE_SYM: case NODE_LINE: case NODE_FILE: case NODE_ENCODING: case NODE_INTEGER: case NODE_FLOAT: case NODE_RATIONAL: case NODE_IMAGINARY: case NODE_STR: case NODE_DSTR: case NODE_DREGX: useless = "a literal"; break; case NODE_COLON2: case NODE_COLON3: useless = "::"; break; case NODE_DOT2: useless = ".."; break; case NODE_DOT3: useless = "..."; break; case NODE_SELF: useless = "self"; break; case NODE_NIL: useless = "nil"; break; case NODE_TRUE: useless = "true"; break; case NODE_FALSE: useless = "false"; break; case NODE_DEFINED: useless = "defined?"; break; } if (useless) { rb_warn1L(nd_line(node), "possibly useless use of %s in void context", WARN_S(useless)); } } static NODE * void_stmts(struct parser_params *p, NODE *node) { NODE *const n = node; if (!RTEST(ruby_verbose)) return n; if (!node) return n; if (!nd_type_p(node, NODE_BLOCK)) return n; while (RNODE_BLOCK(node)->nd_next) { void_expr(p, RNODE_BLOCK(node)->nd_head); node = RNODE_BLOCK(node)->nd_next; } return n; } static NODE * remove_begin(NODE *node) { NODE **n = &node, *n1 = node; while (n1 && nd_type_p(n1, NODE_BEGIN) && RNODE_BEGIN(n1)->nd_body) { *n = n1 = RNODE_BEGIN(n1)->nd_body; } return node; } static void reduce_nodes(struct parser_params *p, NODE **body) { NODE *node = *body; if (!node) { *body = NEW_NIL(&NULL_LOC); return; } #define subnodes(type, n1, n2) \ ((!type(node)->n1) ? (type(node)->n2 ? (body = &type(node)->n2, 1) : 0) : \ (!type(node)->n2) ? (body = &type(node)->n1, 1) : \ (reduce_nodes(p, &type(node)->n1), body = &type(node)->n2, 1)) while (node) { int newline = (int)(nd_fl_newline(node)); switch (nd_type(node)) { end: case NODE_NIL: *body = 0; return; case NODE_RETURN: *body = node = RNODE_RETURN(node)->nd_stts; if (newline && node) nd_set_fl_newline(node); continue; case NODE_BEGIN: *body = node = RNODE_BEGIN(node)->nd_body; if (newline && node) nd_set_fl_newline(node); continue; case NODE_BLOCK: body = &RNODE_BLOCK(RNODE_BLOCK(node)->nd_end)->nd_head; break; case NODE_IF: case NODE_UNLESS: if (subnodes(RNODE_IF, nd_body, nd_else)) break; return; case NODE_CASE: body = &RNODE_CASE(node)->nd_body; break; case NODE_WHEN: if (!subnodes(RNODE_WHEN, nd_body, nd_next)) goto end; break; case NODE_ENSURE: body = &RNODE_ENSURE(node)->nd_head; break; case NODE_RESCUE: newline = 0; // RESBODY should not be a NEWLINE if (RNODE_RESCUE(node)->nd_else) { body = &RNODE_RESCUE(node)->nd_resq; break; } if (!subnodes(RNODE_RESCUE, nd_head, nd_resq)) goto end; break; default: return; } node = *body; if (newline && node) nd_set_fl_newline(node); } #undef subnodes } static int is_static_content(NODE *node) { if (!node) return 1; switch (nd_type(node)) { case NODE_HASH: if (!(node = RNODE_HASH(node)->nd_head)) break; case NODE_LIST: do { if (!is_static_content(RNODE_LIST(node)->nd_head)) return 0; } while ((node = RNODE_LIST(node)->nd_next) != 0); case NODE_LIT: case NODE_SYM: case NODE_LINE: case NODE_FILE: case NODE_ENCODING: case NODE_INTEGER: case NODE_FLOAT: case NODE_RATIONAL: case NODE_IMAGINARY: case NODE_STR: case NODE_NIL: case NODE_TRUE: case NODE_FALSE: case NODE_ZLIST: break; default: return 0; } return 1; } static int assign_in_cond(struct parser_params *p, NODE *node) { switch (nd_type(node)) { case NODE_MASGN: case NODE_LASGN: case NODE_DASGN: case NODE_GASGN: case NODE_IASGN: case NODE_CVASGN: case NODE_CDECL: break; default: return 0; } if (!get_nd_value(p, node)) return 1; if (is_static_content(get_nd_value(p, node))) { /* reports always */ rb_warn0L(nd_line(get_nd_value(p, node)), "found '= literal' in conditional, should be =="); } return 1; } enum cond_type { COND_IN_OP, COND_IN_COND, COND_IN_FF }; #define SWITCH_BY_COND_TYPE(t, w, arg) do { \ switch (t) { \ case COND_IN_OP: break; \ case COND_IN_COND: rb_##w##0(arg "literal in condition"); break; \ case COND_IN_FF: rb_##w##0(arg "literal in flip-flop"); break; \ } \ } while (0) static NODE *cond0(struct parser_params*,NODE*,enum cond_type,const YYLTYPE*,bool); static NODE* range_op(struct parser_params *p, NODE *node, const YYLTYPE *loc) { enum node_type type; if (node == 0) return 0; type = nd_type(node); value_expr(node); if (type == NODE_INTEGER) { if (!e_option_supplied(p)) rb_warn0L(nd_line(node), "integer literal in flip-flop"); ID lineno = rb_intern("$."); return NEW_CALL(node, tEQ, NEW_LIST(NEW_GVAR(lineno, loc), loc), loc); } return cond0(p, node, COND_IN_FF, loc, true); } static NODE* cond0(struct parser_params *p, NODE *node, enum cond_type type, const YYLTYPE *loc, bool top) { if (node == 0) return 0; if (!(node = nd_once_body(node))) return 0; assign_in_cond(p, node); switch (nd_type(node)) { case NODE_BEGIN: RNODE_BEGIN(node)->nd_body = cond0(p, RNODE_BEGIN(node)->nd_body, type, loc, top); break; case NODE_DSTR: case NODE_EVSTR: case NODE_STR: case NODE_FILE: SWITCH_BY_COND_TYPE(type, warn, "string "); break; case NODE_DREGX: if (!e_option_supplied(p)) SWITCH_BY_COND_TYPE(type, warning, "regex "); return NEW_MATCH2(node, NEW_GVAR(idLASTLINE, loc), loc); case NODE_BLOCK: { NODE *end = RNODE_BLOCK(node)->nd_end; NODE **expr = &RNODE_BLOCK(end)->nd_head; if (top) top = node == end; *expr = cond0(p, *expr, type, loc, top); } break; case NODE_AND: case NODE_OR: RNODE_AND(node)->nd_1st = cond0(p, RNODE_AND(node)->nd_1st, COND_IN_COND, loc, true); RNODE_AND(node)->nd_2nd = cond0(p, RNODE_AND(node)->nd_2nd, COND_IN_COND, loc, true); break; case NODE_DOT2: case NODE_DOT3: if (!top) break; RNODE_DOT2(node)->nd_beg = range_op(p, RNODE_DOT2(node)->nd_beg, loc); RNODE_DOT2(node)->nd_end = range_op(p, RNODE_DOT2(node)->nd_end, loc); if (nd_type_p(node, NODE_DOT2)) nd_set_type(node,NODE_FLIP2); else if (nd_type_p(node, NODE_DOT3)) nd_set_type(node, NODE_FLIP3); break; case NODE_SYM: case NODE_DSYM: warn_symbol: SWITCH_BY_COND_TYPE(type, warning, "symbol "); break; case NODE_LIT: if (RB_TYPE_P(RNODE_LIT(node)->nd_lit, T_REGEXP)) { if (!e_option_supplied(p)) SWITCH_BY_COND_TYPE(type, warn, "regex "); nd_set_type(node, NODE_MATCH); } else if (RNODE_LIT(node)->nd_lit == Qtrue || RNODE_LIT(node)->nd_lit == Qfalse) { /* booleans are OK, e.g., while true */ } else if (SYMBOL_P(RNODE_LIT(node)->nd_lit)) { goto warn_symbol; } else { SWITCH_BY_COND_TYPE(type, warning, ""); } break; case NODE_LINE: SWITCH_BY_COND_TYPE(type, warning, ""); break; case NODE_ENCODING: SWITCH_BY_COND_TYPE(type, warning, ""); break; case NODE_INTEGER: case NODE_FLOAT: case NODE_RATIONAL: case NODE_IMAGINARY: SWITCH_BY_COND_TYPE(type, warning, ""); break; default: break; } return node; } static NODE* cond(struct parser_params *p, NODE *node, const YYLTYPE *loc) { if (node == 0) return 0; return cond0(p, node, COND_IN_COND, loc, true); } static NODE* method_cond(struct parser_params *p, NODE *node, const YYLTYPE *loc) { if (node == 0) return 0; return cond0(p, node, COND_IN_OP, loc, true); } static NODE* new_nil_at(struct parser_params *p, const rb_code_position_t *pos) { YYLTYPE loc = {*pos, *pos}; return NEW_NIL(&loc); } static NODE* new_if(struct parser_params *p, NODE *cc, NODE *left, NODE *right, const YYLTYPE *loc) { if (!cc) return right; cc = cond0(p, cc, COND_IN_COND, loc, true); return newline_node(NEW_IF(cc, left, right, loc)); } static NODE* new_unless(struct parser_params *p, NODE *cc, NODE *left, NODE *right, const YYLTYPE *loc) { if (!cc) return right; cc = cond0(p, cc, COND_IN_COND, loc, true); return newline_node(NEW_UNLESS(cc, left, right, loc)); } #define NEW_AND_OR(type, f, s, loc) (type == NODE_AND ? NEW_AND(f,s,loc) : NEW_OR(f,s,loc)) static NODE* logop(struct parser_params *p, ID id, NODE *left, NODE *right, const YYLTYPE *op_loc, const YYLTYPE *loc) { enum node_type type = id == idAND || id == idANDOP ? NODE_AND : NODE_OR; NODE *op; value_expr(left); if (left && nd_type_p(left, type)) { NODE *node = left, *second; while ((second = RNODE_AND(node)->nd_2nd) != 0 && nd_type_p(second, type)) { node = second; } RNODE_AND(node)->nd_2nd = NEW_AND_OR(type, second, right, loc); nd_set_line(RNODE_AND(node)->nd_2nd, op_loc->beg_pos.lineno); left->nd_loc.end_pos = loc->end_pos; return left; } op = NEW_AND_OR(type, left, right, loc); nd_set_line(op, op_loc->beg_pos.lineno); return op; } #undef NEW_AND_OR static void no_blockarg(struct parser_params *p, NODE *node) { if (nd_type_p(node, NODE_BLOCK_PASS)) { compile_error(p, "block argument should not be given"); } } static NODE * ret_args(struct parser_params *p, NODE *node) { if (node) { no_blockarg(p, node); if (nd_type_p(node, NODE_LIST) && !RNODE_LIST(node)->nd_next) { node = RNODE_LIST(node)->nd_head; } } return node; } static NODE * new_yield(struct parser_params *p, NODE *node, const YYLTYPE *loc) { if (node) no_blockarg(p, node); return NEW_YIELD(node, loc); } static NODE* negate_lit(struct parser_params *p, NODE* node) { switch (nd_type(node)) { case NODE_INTEGER: RNODE_INTEGER(node)->minus = TRUE; break; case NODE_FLOAT: RNODE_FLOAT(node)->minus = TRUE; break; case NODE_RATIONAL: RNODE_RATIONAL(node)->minus = TRUE; break; case NODE_IMAGINARY: RNODE_IMAGINARY(node)->minus = TRUE; break; } return node; } static NODE * arg_blk_pass(NODE *node1, rb_node_block_pass_t *node2) { if (node2) { if (!node1) return (NODE *)node2; node2->nd_head = node1; nd_set_first_lineno(node2, nd_first_lineno(node1)); nd_set_first_column(node2, nd_first_column(node1)); return (NODE *)node2; } return node1; } static bool args_info_empty_p(struct rb_args_info *args) { if (args->pre_args_num) return false; if (args->post_args_num) return false; if (args->rest_arg) return false; if (args->opt_args) return false; if (args->block_arg) return false; if (args->kw_args) return false; if (args->kw_rest_arg) return false; return true; } static rb_node_args_t * new_args(struct parser_params *p, rb_node_args_aux_t *pre_args, rb_node_opt_arg_t *opt_args, ID rest_arg, rb_node_args_aux_t *post_args, rb_node_args_t *tail, const YYLTYPE *loc) { struct rb_args_info *args = &tail->nd_ainfo; if (args->forwarding) { if (rest_arg) { yyerror1(&RNODE(tail)->nd_loc, "... after rest argument"); return tail; } rest_arg = idFWD_REST; } args->pre_args_num = pre_args ? rb_long2int(pre_args->nd_plen) : 0; args->pre_init = pre_args ? pre_args->nd_next : 0; args->post_args_num = post_args ? rb_long2int(post_args->nd_plen) : 0; args->post_init = post_args ? post_args->nd_next : 0; args->first_post_arg = post_args ? post_args->nd_pid : 0; args->rest_arg = rest_arg; args->opt_args = opt_args; #ifdef FORWARD_ARGS_WITH_RUBY2_KEYWORDS args->ruby2_keywords = args->forwarding; #else args->ruby2_keywords = 0; #endif nd_set_loc(RNODE(tail), loc); return tail; } static rb_node_args_t * new_args_tail(struct parser_params *p, rb_node_kw_arg_t *kw_args, ID kw_rest_arg, ID block, const YYLTYPE *kw_rest_loc) { rb_node_args_t *node = NEW_ARGS(&NULL_LOC); struct rb_args_info *args = &node->nd_ainfo; if (p->error_p) return node; args->block_arg = block; args->kw_args = kw_args; if (kw_args) { /* * def foo(k1: 1, kr1:, k2: 2, **krest, &b) * variable order: k1, kr1, k2, &b, internal_id, krest * #=> * variable order: kr1, k1, k2, internal_id, krest, &b */ ID kw_bits = internal_id(p), *required_kw_vars, *kw_vars; struct vtable *vtargs = p->lvtbl->args; rb_node_kw_arg_t *kwn = kw_args; if (block) block = vtargs->tbl[vtargs->pos-1]; vtable_pop(vtargs, !!block + !!kw_rest_arg); required_kw_vars = kw_vars = &vtargs->tbl[vtargs->pos]; while (kwn) { if (!NODE_REQUIRED_KEYWORD_P(get_nd_value(p, kwn->nd_body))) --kw_vars; --required_kw_vars; kwn = kwn->nd_next; } for (kwn = kw_args; kwn; kwn = kwn->nd_next) { ID vid = get_nd_vid(p, kwn->nd_body); if (NODE_REQUIRED_KEYWORD_P(get_nd_value(p, kwn->nd_body))) { *required_kw_vars++ = vid; } else { *kw_vars++ = vid; } } arg_var(p, kw_bits); if (kw_rest_arg) arg_var(p, kw_rest_arg); if (block) arg_var(p, block); args->kw_rest_arg = NEW_DVAR(kw_rest_arg, kw_rest_loc); } else if (kw_rest_arg == idNil) { args->no_kwarg = 1; } else if (kw_rest_arg) { args->kw_rest_arg = NEW_DVAR(kw_rest_arg, kw_rest_loc); } return node; } static rb_node_args_t * args_with_numbered(struct parser_params *p, rb_node_args_t *args, int max_numparam, ID it_id) { if (max_numparam > NO_PARAM || it_id) { if (!args) { YYLTYPE loc = RUBY_INIT_YYLLOC(); args = new_args_tail(p, 0, 0, 0, 0); nd_set_loc(RNODE(args), &loc); } args->nd_ainfo.pre_args_num = it_id ? 1 : max_numparam; } return args; } static NODE* new_array_pattern(struct parser_params *p, NODE *constant, NODE *pre_arg, NODE *aryptn, const YYLTYPE *loc) { RNODE_ARYPTN(aryptn)->nd_pconst = constant; if (pre_arg) { NODE *pre_args = NEW_LIST(pre_arg, loc); if (RNODE_ARYPTN(aryptn)->pre_args) { RNODE_ARYPTN(aryptn)->pre_args = list_concat(pre_args, RNODE_ARYPTN(aryptn)->pre_args); } else { RNODE_ARYPTN(aryptn)->pre_args = pre_args; } } return aryptn; } static NODE* new_array_pattern_tail(struct parser_params *p, NODE *pre_args, int has_rest, NODE *rest_arg, NODE *post_args, const YYLTYPE *loc) { if (has_rest) { rest_arg = rest_arg ? rest_arg : NODE_SPECIAL_NO_NAME_REST; } else { rest_arg = NULL; } NODE *node = NEW_ARYPTN(pre_args, rest_arg, post_args, loc); return node; } static NODE* new_find_pattern(struct parser_params *p, NODE *constant, NODE *fndptn, const YYLTYPE *loc) { RNODE_FNDPTN(fndptn)->nd_pconst = constant; return fndptn; } static NODE* new_find_pattern_tail(struct parser_params *p, NODE *pre_rest_arg, NODE *args, NODE *post_rest_arg, const YYLTYPE *loc) { pre_rest_arg = pre_rest_arg ? pre_rest_arg : NODE_SPECIAL_NO_NAME_REST; post_rest_arg = post_rest_arg ? post_rest_arg : NODE_SPECIAL_NO_NAME_REST; NODE *node = NEW_FNDPTN(pre_rest_arg, args, post_rest_arg, loc); return node; } static NODE* new_hash_pattern(struct parser_params *p, NODE *constant, NODE *hshptn, const YYLTYPE *loc) { RNODE_HSHPTN(hshptn)->nd_pconst = constant; return hshptn; } static NODE* new_hash_pattern_tail(struct parser_params *p, NODE *kw_args, ID kw_rest_arg, const YYLTYPE *loc) { NODE *node, *kw_rest_arg_node; if (kw_rest_arg == idNil) { kw_rest_arg_node = NODE_SPECIAL_NO_REST_KEYWORD; } else if (kw_rest_arg) { kw_rest_arg_node = assignable(p, kw_rest_arg, 0, loc); } else { kw_rest_arg_node = NULL; } node = NEW_HSHPTN(0, kw_args, kw_rest_arg_node, loc); return node; } static NODE* dsym_node(struct parser_params *p, NODE *node, const YYLTYPE *loc) { if (!node) { return NEW_SYM(STR_NEW0(), loc); } switch (nd_type(node)) { case NODE_DSTR: nd_set_type(node, NODE_DSYM); nd_set_loc(node, loc); break; case NODE_STR: node = str_to_sym_node(p, node, loc); break; default: node = NEW_DSYM(0, 1, NEW_LIST(node, loc), loc); break; } return node; } #ifndef RIPPER static int nd_type_st_key_enable_p(NODE *node) { switch (nd_type(node)) { case NODE_LIT: case NODE_INTEGER: case NODE_FLOAT: case NODE_RATIONAL: case NODE_IMAGINARY: case NODE_STR: case NODE_SYM: case NODE_LINE: case NODE_FILE: case NODE_ENCODING: return true; default: return false; } } static NODE * nd_st_key(struct parser_params *p, NODE *node) { switch (nd_type(node)) { case NODE_LIT: return (NODE *)RNODE_LIT(node)->nd_lit; case NODE_STR: case NODE_INTEGER: case NODE_FLOAT: case NODE_RATIONAL: case NODE_IMAGINARY: case NODE_SYM: case NODE_LINE: case NODE_ENCODING: case NODE_FILE: return node; default: rb_bug("unexpected node: %s", ruby_node_name(nd_type(node))); UNREACHABLE_RETURN(0); } } static VALUE nd_value(struct parser_params *p, NODE *node) { switch (nd_type(node)) { case NODE_LIT: return RNODE_LIT(node)->nd_lit; case NODE_STR: return rb_node_str_string_val(node); case NODE_INTEGER: return rb_node_integer_literal_val(node); case NODE_FLOAT: return rb_node_float_literal_val(node); case NODE_RATIONAL: return rb_node_rational_literal_val(node); case NODE_IMAGINARY: return rb_node_imaginary_literal_val(node); case NODE_SYM: return rb_node_sym_string_val(node); case NODE_LINE: return rb_node_line_lineno_val(node); case NODE_ENCODING: return rb_node_encoding_val(node); case NODE_FILE: return rb_node_file_path_val(node); default: rb_bug("unexpected node: %s", ruby_node_name(nd_type(node))); UNREACHABLE_RETURN(0); } } void rb_parser_warn_duplicate_keys(struct parser_params *p, NODE *hash) { struct st_hash_type literal_type = { literal_cmp, literal_hash, }; st_table *literal_keys = st_init_table_with_size(&literal_type, RNODE_LIST(hash)->as.nd_alen / 2); while (hash && RNODE_LIST(hash)->nd_next) { NODE *head = RNODE_LIST(hash)->nd_head; NODE *value = RNODE_LIST(hash)->nd_next; NODE *next = RNODE_LIST(value)->nd_next; st_data_t key = (st_data_t)head; st_data_t data; if (!head) { key = (st_data_t)value; } else if (nd_type_st_key_enable_p(head) && st_delete(literal_keys, (key = (st_data_t)nd_st_key(p, head), &key), &data)) { rb_compile_warn(p->ruby_sourcefile, nd_line((NODE *)data), "key %+"PRIsVALUE" is duplicated and overwritten on line %d", nd_value(p, head), nd_line(head)); } st_insert(literal_keys, (st_data_t)key, (st_data_t)hash); hash = next; } st_free_table(literal_keys); } #endif static NODE * new_hash(struct parser_params *p, NODE *hash, const YYLTYPE *loc) { if (hash) rb_parser_warn_duplicate_keys(p, hash); return NEW_HASH(hash, loc); } static void error_duplicate_pattern_variable(struct parser_params *p, ID id, const YYLTYPE *loc) { if (is_private_local_id(p, id)) { return; } if (st_is_member(p->pvtbl, id)) { yyerror1(loc, "duplicated variable name"); } else { st_insert(p->pvtbl, (st_data_t)id, 0); } } static void error_duplicate_pattern_key(struct parser_params *p, VALUE key, const YYLTYPE *loc) { if (!p->pktbl) { p->pktbl = st_init_numtable(); } else if (st_is_member(p->pktbl, key)) { yyerror1(loc, "duplicated key name"); return; } st_insert(p->pktbl, (st_data_t)key, 0); } static NODE * new_unique_key_hash(struct parser_params *p, NODE *hash, const YYLTYPE *loc) { return NEW_HASH(hash, loc); } static NODE * new_op_assign(struct parser_params *p, NODE *lhs, ID op, NODE *rhs, struct lex_context ctxt, const YYLTYPE *loc) { NODE *asgn; if (lhs) { ID vid = get_nd_vid(p, lhs); YYLTYPE lhs_loc = lhs->nd_loc; int shareable = ctxt.shareable_constant_value; if (shareable) { switch (nd_type(lhs)) { case NODE_CDECL: case NODE_COLON2: case NODE_COLON3: break; default: shareable = 0; break; } } if (op == tOROP) { rhs = shareable_constant_value(p, shareable, lhs, rhs, &rhs->nd_loc); set_nd_value(p, lhs, rhs); nd_set_loc(lhs, loc); asgn = NEW_OP_ASGN_OR(gettable(p, vid, &lhs_loc), lhs, loc); } else if (op == tANDOP) { if (shareable) { rhs = shareable_constant_value(p, shareable, lhs, rhs, &rhs->nd_loc); } set_nd_value(p, lhs, rhs); nd_set_loc(lhs, loc); asgn = NEW_OP_ASGN_AND(gettable(p, vid, &lhs_loc), lhs, loc); } else { asgn = lhs; rhs = NEW_CALL(gettable(p, vid, &lhs_loc), op, NEW_LIST(rhs, &rhs->nd_loc), loc); if (shareable) { rhs = shareable_constant_value(p, shareable, lhs, rhs, &rhs->nd_loc); } set_nd_value(p, asgn, rhs); nd_set_loc(asgn, loc); } } else { asgn = NEW_ERROR(loc); } return asgn; } static NODE * new_ary_op_assign(struct parser_params *p, NODE *ary, NODE *args, ID op, NODE *rhs, const YYLTYPE *args_loc, const YYLTYPE *loc) { NODE *asgn; args = make_list(args, args_loc); asgn = NEW_OP_ASGN1(ary, op, args, rhs, loc); fixpos(asgn, ary); return asgn; } static NODE * new_attr_op_assign(struct parser_params *p, NODE *lhs, ID atype, ID attr, ID op, NODE *rhs, const YYLTYPE *loc) { NODE *asgn; asgn = NEW_OP_ASGN2(lhs, CALL_Q_P(atype), attr, op, rhs, loc); fixpos(asgn, lhs); return asgn; } static NODE * new_const_op_assign(struct parser_params *p, NODE *lhs, ID op, NODE *rhs, struct lex_context ctxt, const YYLTYPE *loc) { NODE *asgn; if (lhs) { rhs = shareable_constant_value(p, ctxt.shareable_constant_value, lhs, rhs, loc); asgn = NEW_OP_CDECL(lhs, op, rhs, loc); } else { asgn = NEW_ERROR(loc); } fixpos(asgn, lhs); return asgn; } static NODE * const_decl(struct parser_params *p, NODE *path, const YYLTYPE *loc) { if (p->ctxt.in_def) { yyerror1(loc, "dynamic constant assignment"); } return NEW_CDECL(0, 0, (path), loc); } #ifdef RIPPER static VALUE ripper_const_decl(struct parser_params *p, VALUE path) { if (p->ctxt.in_def) { path = assign_error(p, "dynamic constant assignment", path); } return path; } static VALUE assign_error(struct parser_params *p, const char *mesg, VALUE a) { a = dispatch2(assign_error, ERR_MESG(), a); ripper_error(p); return a; } static VALUE var_field(struct parser_params *p, VALUE a) { return dispatch1(var_field, a); } #endif static NODE * new_bodystmt(struct parser_params *p, NODE *head, NODE *rescue, NODE *rescue_else, NODE *ensure, const YYLTYPE *loc) { NODE *result = head; if (rescue) { NODE *tmp = rescue_else ? rescue_else : rescue; YYLTYPE rescue_loc = code_loc_gen(&head->nd_loc, &tmp->nd_loc); result = NEW_RESCUE(head, rescue, rescue_else, &rescue_loc); nd_set_line(result, rescue->nd_loc.beg_pos.lineno); } else if (rescue_else) { result = block_append(p, result, rescue_else); } if (ensure) { result = NEW_ENSURE(result, ensure, loc); } fixpos(result, head); return result; } static void warn_unused_var(struct parser_params *p, struct local_vars *local) { int cnt; if (!local->used) return; cnt = local->used->pos; if (cnt != local->vars->pos) { rb_parser_fatal(p, "local->used->pos != local->vars->pos"); } #ifndef RIPPER ID *v = local->vars->tbl; ID *u = local->used->tbl; for (int i = 0; i < cnt; ++i) { if (!v[i] || (u[i] & LVAR_USED)) continue; if (is_private_local_id(p, v[i])) continue; rb_warn1L((int)u[i], "assigned but unused variable - %"PRIsWARN, rb_id2str(v[i])); } #endif } static void local_push(struct parser_params *p, int toplevel_scope) { struct local_vars *local; int inherits_dvars = toplevel_scope && compile_for_eval; int warn_unused_vars = RTEST(ruby_verbose); local = ALLOC(struct local_vars); local->prev = p->lvtbl; local->args = vtable_alloc(0); local->vars = vtable_alloc(inherits_dvars ? DVARS_INHERIT : DVARS_TOPSCOPE); #ifndef RIPPER if (toplevel_scope && compile_for_eval) warn_unused_vars = 0; if (toplevel_scope && e_option_supplied(p)) warn_unused_vars = 0; #endif local->numparam.outer = 0; local->numparam.inner = 0; local->numparam.current = 0; local->it = 0; local->used = warn_unused_vars ? vtable_alloc(0) : 0; # if WARN_PAST_SCOPE local->past = 0; # endif CMDARG_PUSH(0); COND_PUSH(0); p->lvtbl = local; } static void vtable_chain_free(struct parser_params *p, struct vtable *table) { while (!DVARS_TERMINAL_P(table)) { struct vtable *cur_table = table; table = cur_table->prev; vtable_free(cur_table); } } static void local_free(struct parser_params *p, struct local_vars *local) { vtable_chain_free(p, local->used); # if WARN_PAST_SCOPE vtable_chain_free(p, local->past); # endif vtable_chain_free(p, local->args); vtable_chain_free(p, local->vars); ruby_sized_xfree(local, sizeof(struct local_vars)); } static void local_pop(struct parser_params *p) { struct local_vars *local = p->lvtbl->prev; if (p->lvtbl->used) { warn_unused_var(p, p->lvtbl); } local_free(p, p->lvtbl); p->lvtbl = local; CMDARG_POP(); COND_POP(); } static rb_ast_id_table_t * local_tbl(struct parser_params *p) { int cnt_args = vtable_size(p->lvtbl->args); int cnt_vars = vtable_size(p->lvtbl->vars); int cnt = cnt_args + cnt_vars; int i, j; rb_ast_id_table_t *tbl; if (cnt <= 0) return 0; tbl = rb_ast_new_local_table(p->ast, cnt); MEMCPY(tbl->ids, p->lvtbl->args->tbl, ID, cnt_args); /* remove IDs duplicated to warn shadowing */ for (i = 0, j = cnt_args; i < cnt_vars; ++i) { ID id = p->lvtbl->vars->tbl[i]; if (!vtable_included(p->lvtbl->args, id)) { tbl->ids[j++] = id; } } if (j < cnt) { tbl = rb_ast_resize_latest_local_table(p->ast, j); } return tbl; } static void numparam_name(struct parser_params *p, ID id) { if (!NUMPARAM_ID_P(id)) return; compile_error(p, "_%d is reserved for numbered parameter", NUMPARAM_ID_TO_IDX(id)); } static void arg_var(struct parser_params *p, ID id) { numparam_name(p, id); vtable_add(p->lvtbl->args, id); } static void local_var(struct parser_params *p, ID id) { numparam_name(p, id); vtable_add(p->lvtbl->vars, id); if (p->lvtbl->used) { vtable_add(p->lvtbl->used, (ID)p->ruby_sourceline); } } #ifndef RIPPER int rb_parser_local_defined(struct parser_params *p, ID id, const struct rb_iseq_struct *iseq) { return rb_local_defined(id, iseq); } #endif static int local_id_ref(struct parser_params *p, ID id, ID **vidrefp) { struct vtable *vars, *args, *used; vars = p->lvtbl->vars; args = p->lvtbl->args; used = p->lvtbl->used; while (vars && !DVARS_TERMINAL_P(vars->prev)) { vars = vars->prev; args = args->prev; if (used) used = used->prev; } if (vars && vars->prev == DVARS_INHERIT) { return rb_parser_local_defined(p, id, p->parent_iseq); } else if (vtable_included(args, id)) { return 1; } else { int i = vtable_included(vars, id); if (i && used && vidrefp) *vidrefp = &used->tbl[i-1]; return i != 0; } } static int local_id(struct parser_params *p, ID id) { return local_id_ref(p, id, NULL); } static int check_forwarding_args(struct parser_params *p) { if (local_id(p, idFWD_ALL)) return TRUE; compile_error(p, "unexpected ..."); return FALSE; } static void add_forwarding_args(struct parser_params *p) { arg_var(p, idFWD_REST); #ifndef FORWARD_ARGS_WITH_RUBY2_KEYWORDS arg_var(p, idFWD_KWREST); #endif arg_var(p, idFWD_BLOCK); arg_var(p, idFWD_ALL); } static void forwarding_arg_check(struct parser_params *p, ID arg, ID all, const char *var) { bool conflict = false; struct vtable *vars, *args; vars = p->lvtbl->vars; args = p->lvtbl->args; while (vars && !DVARS_TERMINAL_P(vars->prev)) { conflict |= (vtable_included(args, arg) && !(all && vtable_included(args, all))); vars = vars->prev; args = args->prev; } bool found = false; if (vars && vars->prev == DVARS_INHERIT && !found) { found = (rb_parser_local_defined(p, arg, p->parent_iseq) && !(all && rb_parser_local_defined(p, all, p->parent_iseq))); } else { found = (vtable_included(args, arg) && !(all && vtable_included(args, all))); } if (!found) { compile_error(p, "no anonymous %s parameter", var); } else if (conflict) { compile_error(p, "anonymous %s parameter is also used within block", var); } } static NODE * new_args_forward_call(struct parser_params *p, NODE *leading, const YYLTYPE *loc, const YYLTYPE *argsloc) { NODE *rest = NEW_LVAR(idFWD_REST, loc); #ifndef FORWARD_ARGS_WITH_RUBY2_KEYWORDS NODE *kwrest = list_append(p, NEW_LIST(0, loc), NEW_LVAR(idFWD_KWREST, loc)); #endif rb_node_block_pass_t *block = NEW_BLOCK_PASS(NEW_LVAR(idFWD_BLOCK, loc), loc); NODE *args = leading ? rest_arg_append(p, leading, rest, argsloc) : NEW_SPLAT(rest, loc); #ifndef FORWARD_ARGS_WITH_RUBY2_KEYWORDS args = arg_append(p, args, new_hash(p, kwrest, loc), loc); #endif return arg_blk_pass(args, block); } static NODE * numparam_push(struct parser_params *p) { struct local_vars *local = p->lvtbl; NODE *inner = local->numparam.inner; if (!local->numparam.outer) { local->numparam.outer = local->numparam.current; } local->numparam.inner = 0; local->numparam.current = 0; local->it = 0; return inner; } static void numparam_pop(struct parser_params *p, NODE *prev_inner) { struct local_vars *local = p->lvtbl; if (prev_inner) { /* prefer first one */ local->numparam.inner = prev_inner; } else if (local->numparam.current) { /* current and inner are exclusive */ local->numparam.inner = local->numparam.current; } if (p->max_numparam > NO_PARAM) { /* current and outer are exclusive */ local->numparam.current = local->numparam.outer; local->numparam.outer = 0; } else { /* no numbered parameter */ local->numparam.current = 0; } local->it = 0; } static const struct vtable * dyna_push(struct parser_params *p) { p->lvtbl->args = vtable_alloc(p->lvtbl->args); p->lvtbl->vars = vtable_alloc(p->lvtbl->vars); if (p->lvtbl->used) { p->lvtbl->used = vtable_alloc(p->lvtbl->used); } return p->lvtbl->args; } static void dyna_pop_vtable(struct parser_params *p, struct vtable **vtblp) { struct vtable *tmp = *vtblp; *vtblp = tmp->prev; # if WARN_PAST_SCOPE if (p->past_scope_enabled) { tmp->prev = p->lvtbl->past; p->lvtbl->past = tmp; return; } # endif vtable_free(tmp); } static void dyna_pop_1(struct parser_params *p) { struct vtable *tmp; if ((tmp = p->lvtbl->used) != 0) { warn_unused_var(p, p->lvtbl); p->lvtbl->used = p->lvtbl->used->prev; vtable_free(tmp); } dyna_pop_vtable(p, &p->lvtbl->args); dyna_pop_vtable(p, &p->lvtbl->vars); } static void dyna_pop(struct parser_params *p, const struct vtable *lvargs) { while (p->lvtbl->args != lvargs) { dyna_pop_1(p); if (!p->lvtbl->args) { struct local_vars *local = p->lvtbl->prev; ruby_sized_xfree(p->lvtbl, sizeof(*p->lvtbl)); p->lvtbl = local; } } dyna_pop_1(p); } static int dyna_in_block(struct parser_params *p) { return !DVARS_TERMINAL_P(p->lvtbl->vars) && p->lvtbl->vars->prev != DVARS_TOPSCOPE; } #ifndef RIPPER int dvar_defined_ref(struct parser_params *p, ID id, ID **vidrefp) { struct vtable *vars, *args, *used; int i; args = p->lvtbl->args; vars = p->lvtbl->vars; used = p->lvtbl->used; while (!DVARS_TERMINAL_P(vars)) { if (vtable_included(args, id)) { return 1; } if ((i = vtable_included(vars, id)) != 0) { if (used && vidrefp) *vidrefp = &used->tbl[i-1]; return 1; } args = args->prev; vars = vars->prev; if (!vidrefp) used = 0; if (used) used = used->prev; } if (vars == DVARS_INHERIT && !NUMPARAM_ID_P(id)) { return rb_dvar_defined(id, p->parent_iseq); } return 0; } #endif static int dvar_defined(struct parser_params *p, ID id) { return dvar_defined_ref(p, id, NULL); } static int dvar_curr(struct parser_params *p, ID id) { return (vtable_included(p->lvtbl->args, id) || vtable_included(p->lvtbl->vars, id)); } static void reg_fragment_enc_error(struct parser_params* p, VALUE str, int c) { compile_error(p, "regexp encoding option '%c' differs from source encoding '%s'", c, rb_enc_name(rb_enc_get(str))); } #ifndef RIPPER int rb_reg_fragment_setenc(struct parser_params* p, VALUE str, int options) { int c = RE_OPTION_ENCODING_IDX(options); if (c) { int opt, idx; rb_char_to_option_kcode(c, &opt, &idx); if (idx != ENCODING_GET(str) && !is_ascii_string(str)) { goto error; } ENCODING_SET(str, idx); } else if (RE_OPTION_ENCODING_NONE(options)) { if (!ENCODING_IS_ASCII8BIT(str) && !is_ascii_string(str)) { c = 'n'; goto error; } rb_enc_associate(str, rb_ascii8bit_encoding()); } else if (rb_is_usascii_enc(p->enc)) { if (!is_ascii_string(str)) { /* raise in re.c */ rb_enc_associate(str, rb_usascii_encoding()); } else { rb_enc_associate(str, rb_ascii8bit_encoding()); } } return 0; error: return c; } #endif static void reg_fragment_setenc(struct parser_params* p, VALUE str, int options) { int c = rb_reg_fragment_setenc(p, str, options); if (c) reg_fragment_enc_error(p, str, c); } #ifndef RIPPER int reg_fragment_check(struct parser_params* p, rb_parser_string_t *str, int options) { VALUE err, str2; /* TODO */ str2 = rb_str_new_parser_string(str); reg_fragment_setenc(p, str2, options); str->enc = rb_enc_get(str2); err = rb_reg_check_preprocess(str2); if (err != Qnil) { err = rb_obj_as_string(err); compile_error(p, "%"PRIsVALUE, err); return 0; } return 1; } #endif #ifndef UNIVERSAL_PARSER typedef struct { struct parser_params* parser; rb_encoding *enc; NODE *succ_block; const YYLTYPE *loc; } reg_named_capture_assign_t; static int reg_named_capture_assign_iter(const OnigUChar *name, const OnigUChar *name_end, int back_num, int *back_refs, OnigRegex regex, void *arg0) { reg_named_capture_assign_t *arg = (reg_named_capture_assign_t*)arg0; struct parser_params* p = arg->parser; rb_encoding *enc = arg->enc; long len = name_end - name; const char *s = (const char *)name; return rb_reg_named_capture_assign_iter_impl(p, s, len, enc, &arg->succ_block, arg->loc); } static NODE * reg_named_capture_assign(struct parser_params* p, VALUE regexp, const YYLTYPE *loc) { reg_named_capture_assign_t arg; arg.parser = p; arg.enc = rb_enc_get(regexp); arg.succ_block = 0; arg.loc = loc; onig_foreach_name(RREGEXP_PTR(regexp), reg_named_capture_assign_iter, &arg); if (!arg.succ_block) return 0; return RNODE_BLOCK(arg.succ_block)->nd_next; } #endif #ifndef RIPPER int rb_reg_named_capture_assign_iter_impl(struct parser_params *p, const char *s, long len, rb_encoding *enc, NODE **succ_block, const rb_code_location_t *loc) { ID var; NODE *node, *succ; if (!len) return ST_CONTINUE; if (!VALID_SYMNAME_P(s, len, enc, ID_LOCAL)) return ST_CONTINUE; var = intern_cstr(s, len, enc); if (len < MAX_WORD_LENGTH && rb_reserved_word(s, (int)len)) { if (!lvar_defined(p, var)) return ST_CONTINUE; } node = node_assign(p, assignable(p, var, 0, loc), NEW_SYM(rb_id2str(var), loc), NO_LEX_CTXT, loc); succ = *succ_block; if (!succ) succ = NEW_ERROR(loc); succ = block_append(p, succ, node); *succ_block = succ; return ST_CONTINUE; } #endif static VALUE parser_reg_compile(struct parser_params* p, VALUE str, int options) { reg_fragment_setenc(p, str, options); return rb_parser_reg_compile(p, str, options); } #ifndef RIPPER VALUE rb_parser_reg_compile(struct parser_params* p, VALUE str, int options) { return rb_reg_compile(str, options & RE_OPTION_MASK, p->ruby_sourcefile, p->ruby_sourceline); } #endif static VALUE reg_compile(struct parser_params* p, VALUE str, int options) { VALUE re; VALUE err; err = rb_errinfo(); re = parser_reg_compile(p, str, options); if (NIL_P(re)) { VALUE m = rb_attr_get(rb_errinfo(), idMesg); rb_set_errinfo(err); compile_error(p, "%"PRIsVALUE, m); return Qnil; } return re; } #ifndef RIPPER void rb_ruby_parser_set_options(struct parser_params *p, int print, int loop, int chomp, int split) { p->do_print = print; p->do_loop = loop; p->do_chomp = chomp; p->do_split = split; } static NODE * parser_append_options(struct parser_params *p, NODE *node) { static const YYLTYPE default_location = {{1, 0}, {1, 0}}; const YYLTYPE *const LOC = &default_location; if (p->do_print) { NODE *print = (NODE *)NEW_FCALL(rb_intern("print"), NEW_LIST(NEW_GVAR(idLASTLINE, LOC), LOC), LOC); node = block_append(p, node, print); } if (p->do_loop) { NODE *irs = NEW_LIST(NEW_GVAR(rb_intern("$/"), LOC), LOC); if (p->do_split) { ID ifs = rb_intern("$;"); ID fields = rb_intern("$F"); NODE *args = NEW_LIST(NEW_GVAR(ifs, LOC), LOC); NODE *split = NEW_GASGN(fields, NEW_CALL(NEW_GVAR(idLASTLINE, LOC), rb_intern("split"), args, LOC), LOC); node = block_append(p, split, node); } if (p->do_chomp) { NODE *chomp = NEW_SYM(rb_str_new_cstr("chomp"), LOC); chomp = list_append(p, NEW_LIST(chomp, LOC), NEW_TRUE(LOC)); irs = list_append(p, irs, NEW_HASH(chomp, LOC)); } node = NEW_WHILE((NODE *)NEW_FCALL(idGets, irs, LOC), node, 1, LOC); } return node; } void rb_init_parse(void) { /* just to suppress unused-function warnings */ (void)nodetype; (void)nodeline; } ID internal_id(struct parser_params *p) { return rb_make_temporary_id(vtable_size(p->lvtbl->args) + vtable_size(p->lvtbl->vars)); } #endif /* !RIPPER */ static void parser_initialize(struct parser_params *p) { /* note: we rely on TypedData_Make_Struct to set most fields to 0 */ p->command_start = TRUE; p->ruby_sourcefile_string = Qnil; p->lex.lpar_beg = -1; /* make lambda_beginning_p() == FALSE at first */ string_buffer_init(p); p->node_id = 0; p->delayed.token = Qnil; p->frozen_string_literal = -1; /* not specified */ #ifndef RIPPER p->error_buffer = Qfalse; p->end_expect_token_locations = NULL; p->token_id = 0; p->tokens = Qnil; #else p->result = Qnil; p->parsing_thread = Qnil; p->s_value = Qnil; p->s_lvalue = Qnil; p->s_value_stack = rb_ary_new(); #endif p->debug_buffer = Qnil; p->debug_output = rb_ractor_stdout(); p->enc = rb_utf8_encoding(); p->exits = 0; } #ifdef RIPPER #define rb_ruby_parser_mark ripper_parser_mark #define rb_ruby_parser_free ripper_parser_free #define rb_ruby_parser_memsize ripper_parser_memsize #endif void rb_ruby_parser_mark(void *ptr) { struct parser_params *p = (struct parser_params*)ptr; rb_gc_mark(p->lex.input); rb_gc_mark(p->ruby_sourcefile_string); rb_gc_mark((VALUE)p->ast); rb_gc_mark(p->case_labels); rb_gc_mark(p->delayed.token); #ifndef RIPPER rb_gc_mark(p->debug_lines); rb_gc_mark(p->error_buffer); rb_gc_mark(p->tokens); #else rb_gc_mark(p->value); rb_gc_mark(p->result); rb_gc_mark(p->parsing_thread); rb_gc_mark(p->s_value); rb_gc_mark(p->s_lvalue); rb_gc_mark(p->s_value_stack); #endif rb_gc_mark(p->debug_buffer); rb_gc_mark(p->debug_output); #ifdef YYMALLOC rb_gc_mark((VALUE)p->heap); #endif } void rb_ruby_parser_free(void *ptr) { struct parser_params *p = (struct parser_params*)ptr; struct local_vars *local, *prev; if (p->tokenbuf) { ruby_sized_xfree(p->tokenbuf, p->toksiz); } for (local = p->lvtbl; local; local = prev) { prev = local->prev; local_free(p, local); } { token_info *ptinfo; while ((ptinfo = p->token_info) != 0) { p->token_info = ptinfo->next; xfree(ptinfo); } } string_buffer_free(p); if (p->pvtbl) { st_free_table(p->pvtbl); } xfree(ptr); } size_t rb_ruby_parser_memsize(const void *ptr) { struct parser_params *p = (struct parser_params*)ptr; struct local_vars *local; size_t size = sizeof(*p); size += p->toksiz; for (local = p->lvtbl; local; local = local->prev) { size += sizeof(*local); if (local->vars) size += local->vars->capa * sizeof(ID); } return size; } #ifndef UNIVERSAL_PARSER #ifndef RIPPER static const rb_data_type_t parser_data_type = { "parser", { rb_ruby_parser_mark, rb_ruby_parser_free, rb_ruby_parser_memsize, }, 0, 0, RUBY_TYPED_FREE_IMMEDIATELY }; #endif #endif #ifndef RIPPER #undef rb_reserved_word const struct kwtable * rb_reserved_word(const char *str, unsigned int len) { return reserved_word(str, len); } #ifdef UNIVERSAL_PARSER rb_parser_t * rb_ruby_parser_allocate(const rb_parser_config_t *config) { /* parser_initialize expects fields to be set to 0 */ rb_parser_t *p = (rb_parser_t *)config->calloc(1, sizeof(rb_parser_t)); p->config = config; return p; } rb_parser_t * rb_ruby_parser_new(const rb_parser_config_t *config) { /* parser_initialize expects fields to be set to 0 */ rb_parser_t *p = rb_ruby_parser_allocate(config); parser_initialize(p); return p; } #endif rb_parser_t * rb_ruby_parser_set_context(rb_parser_t *p, const struct rb_iseq_struct *base, int main) { p->error_buffer = main ? Qfalse : Qnil; p->parent_iseq = base; return p; } void rb_ruby_parser_set_script_lines(rb_parser_t *p, VALUE lines) { if (!RTEST(lines)) { lines = Qfalse; } else if (lines == Qtrue) { lines = rb_ary_new(); } else { Check_Type(lines, T_ARRAY); rb_ary_modify(lines); } p->debug_lines = lines; } void rb_ruby_parser_error_tolerant(rb_parser_t *p) { p->error_tolerant = 1; } void rb_ruby_parser_keep_tokens(rb_parser_t *p) { p->keep_tokens = 1; // TODO p->tokens = rb_ary_new(); } #ifndef UNIVERSAL_PARSER rb_ast_t* rb_parser_compile_file_path(VALUE vparser, VALUE fname, VALUE file, int start) { struct parser_params *p; TypedData_Get_Struct(vparser, struct parser_params, &parser_data_type, p); RB_GC_GUARD(vparser); /* prohibit tail call optimization */ return rb_ruby_parser_compile_file_path(p, fname, file, start); } rb_ast_t* rb_parser_compile_generic(VALUE vparser, VALUE (*lex_gets)(VALUE, int), VALUE fname, VALUE input, int start) { struct parser_params *p; TypedData_Get_Struct(vparser, struct parser_params, &parser_data_type, p); RB_GC_GUARD(vparser); /* prohibit tail call optimization */ return rb_ruby_parser_compile_generic(p, lex_gets, fname, input, start); } rb_ast_t* rb_parser_compile_string(VALUE vparser, const char *f, VALUE s, int line) { struct parser_params *p; TypedData_Get_Struct(vparser, struct parser_params, &parser_data_type, p); RB_GC_GUARD(vparser); /* prohibit tail call optimization */ return rb_ruby_parser_compile_string(p, f, s, line); } rb_ast_t* rb_parser_compile_string_path(VALUE vparser, VALUE f, VALUE s, int line) { struct parser_params *p; TypedData_Get_Struct(vparser, struct parser_params, &parser_data_type, p); RB_GC_GUARD(vparser); /* prohibit tail call optimization */ return rb_ruby_parser_compile_string_path(p, f, s, line); } VALUE rb_parser_encoding(VALUE vparser) { struct parser_params *p; TypedData_Get_Struct(vparser, struct parser_params, &parser_data_type, p); return rb_ruby_parser_encoding(p); } VALUE rb_parser_end_seen_p(VALUE vparser) { struct parser_params *p; TypedData_Get_Struct(vparser, struct parser_params, &parser_data_type, p); return RBOOL(rb_ruby_parser_end_seen_p(p)); } void rb_parser_error_tolerant(VALUE vparser) { struct parser_params *p; TypedData_Get_Struct(vparser, struct parser_params, &parser_data_type, p); rb_ruby_parser_error_tolerant(p); } void rb_parser_set_script_lines(VALUE vparser, VALUE lines) { struct parser_params *p; TypedData_Get_Struct(vparser, struct parser_params, &parser_data_type, p); rb_ruby_parser_set_script_lines(p, lines); } void rb_parser_keep_tokens(VALUE vparser) { struct parser_params *p; TypedData_Get_Struct(vparser, struct parser_params, &parser_data_type, p); rb_ruby_parser_keep_tokens(p); } VALUE rb_parser_new(void) { struct parser_params *p; VALUE parser = TypedData_Make_Struct(0, struct parser_params, &parser_data_type, p); parser_initialize(p); return parser; } VALUE rb_parser_set_context(VALUE vparser, const struct rb_iseq_struct *base, int main) { struct parser_params *p; TypedData_Get_Struct(vparser, struct parser_params, &parser_data_type, p); rb_ruby_parser_set_context(p, base, main); return vparser; } void rb_parser_set_options(VALUE vparser, int print, int loop, int chomp, int split) { struct parser_params *p; TypedData_Get_Struct(vparser, struct parser_params, &parser_data_type, p); rb_ruby_parser_set_options(p, print, loop, chomp, split); } VALUE rb_parser_set_yydebug(VALUE self, VALUE flag) { struct parser_params *p; TypedData_Get_Struct(self, struct parser_params, &parser_data_type, p); rb_ruby_parser_set_yydebug(p, RTEST(flag)); return flag; } #endif /* !UNIVERSAL_PARSER */ VALUE rb_ruby_parser_encoding(rb_parser_t *p) { return rb_enc_from_encoding(p->enc); } int rb_ruby_parser_end_seen_p(rb_parser_t *p) { return p->ruby__end__seen; } int rb_ruby_parser_set_yydebug(rb_parser_t *p, int flag) { p->debug = flag; return flag; } #endif /* !RIPPER */ #ifdef RIPPER int rb_ruby_parser_get_yydebug(rb_parser_t *p) { return p->debug; } void rb_ruby_parser_set_value(rb_parser_t *p, VALUE value) { p->value = value; } int rb_ruby_parser_error_p(rb_parser_t *p) { return p->error_p; } VALUE rb_ruby_parser_debug_output(rb_parser_t *p) { return p->debug_output; } void rb_ruby_parser_set_debug_output(rb_parser_t *p, VALUE output) { p->debug_output = output; } VALUE rb_ruby_parser_parsing_thread(rb_parser_t *p) { return p->parsing_thread; } void rb_ruby_parser_set_parsing_thread(rb_parser_t *p, VALUE parsing_thread) { p->parsing_thread = parsing_thread; } void rb_ruby_parser_ripper_initialize(rb_parser_t *p, VALUE (*gets)(struct parser_params*,VALUE), VALUE input, VALUE sourcefile_string, const char *sourcefile, int sourceline) { p->lex.gets = gets; p->lex.input = input; p->eofp = 0; p->ruby_sourcefile_string = sourcefile_string; p->ruby_sourcefile = sourcefile; p->ruby_sourceline = sourceline; } VALUE rb_ruby_parser_result(rb_parser_t *p) { return p->result; } rb_encoding * rb_ruby_parser_enc(rb_parser_t *p) { return p->enc; } VALUE rb_ruby_parser_ruby_sourcefile_string(rb_parser_t *p) { return p->ruby_sourcefile_string; } int rb_ruby_parser_ruby_sourceline(rb_parser_t *p) { return p->ruby_sourceline; } int rb_ruby_parser_lex_state(rb_parser_t *p) { return p->lex.state; } void rb_ruby_ripper_parse0(rb_parser_t *p) { parser_prepare(p); p->ast = rb_ast_new(); ripper_yyparse((void*)p); rb_ast_dispose(p->ast); p->ast = 0; p->eval_tree = 0; p->eval_tree_begin = 0; } int rb_ruby_ripper_dedent_string(rb_parser_t *p, VALUE string, int width) { char *str; long len; int i; RSTRING_GETMEM(string, str, len); i = dedent_string_column(str, len, width); if (!i) return 0; rb_str_modify(string); str = RSTRING_PTR(string); if (RSTRING_LEN(string) != len) rb_fatal("literal string changed: %+"PRIsVALUE, string); MEMMOVE(str, str + i, char, len - i); rb_str_set_len(string, len - i); return i; } VALUE rb_ruby_ripper_lex_get_str(rb_parser_t *p, VALUE s) { return lex_get_str(p, s); } int rb_ruby_ripper_initialized_p(rb_parser_t *p) { return p->lex.input != 0; } void rb_ruby_ripper_parser_initialize(rb_parser_t *p) { parser_initialize(p); } long rb_ruby_ripper_column(rb_parser_t *p) { return p->lex.ptok - p->lex.pbeg; } long rb_ruby_ripper_token_len(rb_parser_t *p) { return p->lex.pcur - p->lex.ptok; } rb_parser_string_t * rb_ruby_ripper_lex_lastline(rb_parser_t *p) { return p->lex.lastline; } VALUE rb_ruby_ripper_lex_state_name(struct parser_params *p, int state) { return rb_parser_lex_state_name(p, (enum lex_state_e)state); } struct parser_params* rb_ruby_ripper_parser_allocate(void) { return (struct parser_params *)ruby_xcalloc(1, sizeof(struct parser_params)); } #endif /* RIPPER */ #ifndef RIPPER #ifdef YYMALLOC #define HEAPCNT(n, size) ((n) * (size) / sizeof(YYSTYPE)) /* Keep the order; NEWHEAP then xmalloc and ADD2HEAP to get rid of * potential memory leak */ #define NEWHEAP() rb_imemo_tmpbuf_parser_heap(0, p->heap, 0) #define ADD2HEAP(new, cnt, ptr) ((p->heap = (new))->ptr = (ptr), \ (new)->cnt = (cnt), (ptr)) void * rb_parser_malloc(struct parser_params *p, size_t size) { size_t cnt = HEAPCNT(1, size); rb_imemo_tmpbuf_t *n = NEWHEAP(); void *ptr = xmalloc(size); return ADD2HEAP(n, cnt, ptr); } void * rb_parser_calloc(struct parser_params *p, size_t nelem, size_t size) { size_t cnt = HEAPCNT(nelem, size); rb_imemo_tmpbuf_t *n = NEWHEAP(); void *ptr = xcalloc(nelem, size); return ADD2HEAP(n, cnt, ptr); } void * rb_parser_realloc(struct parser_params *p, void *ptr, size_t size) { rb_imemo_tmpbuf_t *n; size_t cnt = HEAPCNT(1, size); if (ptr && (n = p->heap) != NULL) { do { if (n->ptr == ptr) { n->ptr = ptr = xrealloc(ptr, size); if (n->cnt) n->cnt = cnt; return ptr; } } while ((n = n->next) != NULL); } n = NEWHEAP(); ptr = xrealloc(ptr, size); return ADD2HEAP(n, cnt, ptr); } void rb_parser_free(struct parser_params *p, void *ptr) { rb_imemo_tmpbuf_t **prev = &p->heap, *n; while ((n = *prev) != NULL) { if (n->ptr == ptr) { *prev = n->next; break; } prev = &n->next; } } #endif void rb_parser_printf(struct parser_params *p, const char *fmt, ...) { va_list ap; VALUE mesg = p->debug_buffer; if (NIL_P(mesg)) p->debug_buffer = mesg = rb_str_new(0, 0); va_start(ap, fmt); rb_str_vcatf(mesg, fmt, ap); va_end(ap); if (end_with_newline_p(p, mesg)) { rb_io_write(p->debug_output, mesg); p->debug_buffer = Qnil; } } static void parser_compile_error(struct parser_params *p, const rb_code_location_t *loc, const char *fmt, ...) { va_list ap; int lineno, column; if (loc) { lineno = loc->end_pos.lineno; column = loc->end_pos.column; } else { lineno = p->ruby_sourceline; column = rb_long2int(p->lex.pcur - p->lex.pbeg); } rb_io_flush(p->debug_output); p->error_p = 1; va_start(ap, fmt); p->error_buffer = rb_syntax_error_append(p->error_buffer, p->ruby_sourcefile_string, lineno, column, p->enc, fmt, ap); va_end(ap); } static size_t count_char(const char *str, int c) { int n = 0; while (str[n] == c) ++n; return n; } /* * strip enclosing double-quotes, same as the default yytnamerr except * for that single-quotes matching back-quotes do not stop stripping. * * "\"`class' keyword\"" => "`class' keyword" */ RUBY_FUNC_EXPORTED size_t rb_yytnamerr(struct parser_params *p, char *yyres, const char *yystr) { if (*yystr == '"') { size_t yyn = 0, bquote = 0; const char *yyp = yystr; while (*++yyp) { switch (*yyp) { case '\'': if (!bquote) { bquote = count_char(yyp+1, '\'') + 1; if (yyres) memcpy(&yyres[yyn], yyp, bquote); yyn += bquote; yyp += bquote - 1; break; } else { if (bquote && count_char(yyp+1, '\'') + 1 == bquote) { if (yyres) memcpy(yyres + yyn, yyp, bquote); yyn += bquote; yyp += bquote - 1; bquote = 0; break; } if (yyp[1] && yyp[1] != '\'' && yyp[2] == '\'') { if (yyres) memcpy(yyres + yyn, yyp, 3); yyn += 3; yyp += 2; break; } goto do_not_strip_quotes; } case ',': goto do_not_strip_quotes; case '\\': if (*++yyp != '\\') goto do_not_strip_quotes; /* Fall through. */ default: if (yyres) yyres[yyn] = *yyp; yyn++; break; case '"': case '\0': if (yyres) yyres[yyn] = '\0'; return yyn; } } do_not_strip_quotes: ; } if (!yyres) return strlen(yystr); return (YYSIZE_T)(yystpcpy(yyres, yystr) - yyres); } #endif #ifdef RIPPER #ifdef RIPPER_DEBUG /* :nodoc: */ static VALUE ripper_validate_object(VALUE self, VALUE x) { if (x == Qfalse) return x; if (x == Qtrue) return x; if (NIL_P(x)) return x; if (UNDEF_P(x)) rb_raise(rb_eArgError, "Qundef given"); if (FIXNUM_P(x)) return x; if (SYMBOL_P(x)) return x; switch (BUILTIN_TYPE(x)) { case T_STRING: case T_OBJECT: case T_ARRAY: case T_BIGNUM: case T_FLOAT: case T_COMPLEX: case T_RATIONAL: break; default: rb_raise(rb_eArgError, "wrong type of ruby object: %p (%s)", (void *)x, rb_obj_classname(x)); } if (!RBASIC_CLASS(x)) { rb_raise(rb_eArgError, "hidden ruby object: %p (%s)", (void *)x, rb_builtin_type_name(TYPE(x))); } return x; } #endif #define validate(x) ((x) = (x) == rb_ripper_none ? Qnil : x) static VALUE ripper_dispatch0(struct parser_params *p, ID mid) { return rb_funcall(p->value, mid, 0); } static VALUE ripper_dispatch1(struct parser_params *p, ID mid, VALUE a) { validate(a); return rb_funcall(p->value, mid, 1, a); } static VALUE ripper_dispatch2(struct parser_params *p, ID mid, VALUE a, VALUE b) { validate(a); validate(b); return rb_funcall(p->value, mid, 2, a, b); } static VALUE ripper_dispatch3(struct parser_params *p, ID mid, VALUE a, VALUE b, VALUE c) { validate(a); validate(b); validate(c); return rb_funcall(p->value, mid, 3, a, b, c); } static VALUE ripper_dispatch4(struct parser_params *p, ID mid, VALUE a, VALUE b, VALUE c, VALUE d) { validate(a); validate(b); validate(c); validate(d); return rb_funcall(p->value, mid, 4, a, b, c, d); } static VALUE ripper_dispatch5(struct parser_params *p, ID mid, VALUE a, VALUE b, VALUE c, VALUE d, VALUE e) { validate(a); validate(b); validate(c); validate(d); validate(e); return rb_funcall(p->value, mid, 5, a, b, c, d, e); } static VALUE ripper_dispatch7(struct parser_params *p, ID mid, VALUE a, VALUE b, VALUE c, VALUE d, VALUE e, VALUE f, VALUE g) { validate(a); validate(b); validate(c); validate(d); validate(e); validate(f); validate(g); return rb_funcall(p->value, mid, 7, a, b, c, d, e, f, g); } void ripper_error(struct parser_params *p) { p->error_p = TRUE; } VALUE ripper_value(struct parser_params *p) { (void)yystpcpy; /* may not used in newer bison */ return p->value; } #endif /* RIPPER */ /* * Local variables: * mode: c * c-file-style: "ruby" * End: */