diff options
Diffstat (limited to 'ruby_1_9_3/error.c')
| -rw-r--r-- | ruby_1_9_3/error.c | 1792 |
1 files changed, 0 insertions, 1792 deletions
diff --git a/ruby_1_9_3/error.c b/ruby_1_9_3/error.c deleted file mode 100644 index 2d71ededad..0000000000 --- a/ruby_1_9_3/error.c +++ /dev/null @@ -1,1792 +0,0 @@ -/********************************************************************** - - error.c - - - $Author$ - created at: Mon Aug 9 16:11:34 JST 1993 - - Copyright (C) 1993-2007 Yukihiro Matsumoto - -**********************************************************************/ - -#include "ruby/ruby.h" -#include "ruby/st.h" -#include "ruby/encoding.h" -#include "internal.h" -#include "vm_core.h" - -#include <stdio.h> -#include <stdarg.h> -#ifdef HAVE_STDLIB_H -#include <stdlib.h> -#endif -#include <errno.h> -#ifdef HAVE_UNISTD_H -#include <unistd.h> -#endif - -#ifndef EXIT_SUCCESS -#define EXIT_SUCCESS 0 -#endif - -#ifndef WIFEXITED -#define WIFEXITED(status) 1 -#endif - -#ifndef WEXITSTATUS -#define WEXITSTATUS(status) (status) -#endif - -extern const char ruby_description[]; - -#define REPORTBUG_MSG \ - "[NOTE]\n" \ - "You may have encountered a bug in the Ruby interpreter" \ - " or extension libraries.\n" \ - "Bug reports are welcome.\n" \ - "For details: http://www.ruby-lang.org/bugreport.html\n\n" \ - -static const char * -rb_strerrno(int err) -{ -#define defined_error(name, num) if (err == (num)) return (name); -#define undefined_error(name) -#include "known_errors.inc" -#undef defined_error -#undef undefined_error - return NULL; -} - -static int -err_position_0(char *buf, long len, const char *file, int line) -{ - if (!file) { - return 0; - } - else if (line == 0) { - return snprintf(buf, len, "%s: ", file); - } - else { - return snprintf(buf, len, "%s:%d: ", file, line); - } -} - -static int -err_position(char *buf, long len) -{ - return err_position_0(buf, len, rb_sourcefile(), rb_sourceline()); -} - -static void -err_snprintf(char *buf, long len, const char *fmt, va_list args) -{ - long n; - - n = err_position(buf, len); - if (len > n) { - vsnprintf((char*)buf+n, len-n, fmt, args); - } -} - -static void -compile_snprintf(char *buf, long len, const char *file, int line, const char *fmt, va_list args) -{ - long n; - - n = err_position_0(buf, len, file, line); - if (len > n) { - vsnprintf((char*)buf+n, len-n, fmt, args); - } -} - -static void err_append(const char*, rb_encoding *); - -void -rb_compile_error_with_enc(const char *file, int line, void *enc, const char *fmt, ...) -{ - va_list args; - char buf[BUFSIZ]; - - va_start(args, fmt); - compile_snprintf(buf, BUFSIZ, file, line, fmt, args); - va_end(args); - err_append(buf, (rb_encoding *)enc); -} - -void -rb_compile_error(const char *file, int line, const char *fmt, ...) -{ - va_list args; - char buf[BUFSIZ]; - - va_start(args, fmt); - compile_snprintf(buf, BUFSIZ, file, line, fmt, args); - va_end(args); - err_append(buf, NULL); -} - -void -rb_compile_error_append(const char *fmt, ...) -{ - va_list args; - char buf[BUFSIZ]; - - va_start(args, fmt); - vsnprintf(buf, BUFSIZ, fmt, args); - va_end(args); - err_append(buf, NULL); -} - -static void -compile_warn_print(const char *file, int line, const char *fmt, va_list args) -{ - char buf[BUFSIZ]; - int len; - - compile_snprintf(buf, BUFSIZ, file, line, fmt, args); - len = (int)strlen(buf); - buf[len++] = '\n'; - rb_write_error2(buf, len); -} - -void -rb_compile_warn(const char *file, int line, const char *fmt, ...) -{ - char buf[BUFSIZ]; - va_list args; - - if (NIL_P(ruby_verbose)) return; - - snprintf(buf, BUFSIZ, "warning: %s", fmt); - - va_start(args, fmt); - compile_warn_print(file, line, buf, args); - va_end(args); -} - -/* rb_compile_warning() reports only in verbose mode */ -void -rb_compile_warning(const char *file, int line, const char *fmt, ...) -{ - char buf[BUFSIZ]; - va_list args; - - if (!RTEST(ruby_verbose)) return; - - snprintf(buf, BUFSIZ, "warning: %s", fmt); - - va_start(args, fmt); - compile_warn_print(file, line, buf, args); - va_end(args); -} - -static void -warn_print(const char *fmt, va_list args) -{ - char buf[BUFSIZ]; - int len; - - err_snprintf(buf, BUFSIZ, fmt, args); - len = (int)strlen(buf); - buf[len++] = '\n'; - rb_write_error2(buf, len); -} - -void -rb_warn(const char *fmt, ...) -{ - char buf[BUFSIZ]; - va_list args; - - if (NIL_P(ruby_verbose)) return; - - snprintf(buf, BUFSIZ, "warning: %s", fmt); - - va_start(args, fmt); - warn_print(buf, args); - va_end(args); -} - -/* rb_warning() reports only in verbose mode */ -void -rb_warning(const char *fmt, ...) -{ - char buf[BUFSIZ]; - va_list args; - - if (!RTEST(ruby_verbose)) return; - - snprintf(buf, BUFSIZ, "warning: %s", fmt); - - va_start(args, fmt); - warn_print(buf, args); - va_end(args); -} - -/* - * call-seq: - * warn(msg) -> nil - * - * Display the given message (followed by a newline) on STDERR unless - * warnings are disabled (for example with the <code>-W0</code> flag). - */ - -static VALUE -rb_warn_m(VALUE self, VALUE mesg) -{ - if (!NIL_P(ruby_verbose)) { - rb_io_write(rb_stderr, mesg); - rb_io_write(rb_stderr, rb_default_rs); - } - return Qnil; -} - -static void -report_bug(const char *file, int line, const char *fmt, va_list args) -{ - char buf[BUFSIZ]; - FILE *out = stderr; - int len = err_position_0(buf, BUFSIZ, file, line); - - if ((ssize_t)fwrite(buf, 1, len, out) == (ssize_t)len || - (ssize_t)fwrite(buf, 1, len, (out = stdout)) == (ssize_t)len) { - - fputs("[BUG] ", out); - vfprintf(out, fmt, args); - fprintf(out, "\n%s\n\n", ruby_description); - - rb_vm_bugreport(); - - fprintf(out, REPORTBUG_MSG); - } -} - -void -rb_bug(const char *fmt, ...) -{ - va_list args; - const char *file = NULL; - int line = 0; - - if (GET_THREAD()) { - file = rb_sourcefile(); - line = rb_sourceline(); - } - - va_start(args, fmt); - report_bug(file, line, fmt, args); - va_end(args); - -#if defined(_WIN32) && defined(RT_VER) && RT_VER >= 80 - _set_abort_behavior( 0, _CALL_REPORTFAULT); -#endif - - abort(); -} - -void -rb_bug_errno(const char *mesg, int errno_arg) -{ - if (errno_arg == 0) - rb_bug("%s: errno == 0 (NOERROR)", mesg); - else { - const char *errno_str = rb_strerrno(errno_arg); - if (errno_str) - rb_bug("%s: %s (%s)", mesg, strerror(errno_arg), errno_str); - else - rb_bug("%s: %s (%d)", mesg, strerror(errno_arg), errno_arg); - } -} - -/* - * this is safe to call inside signal handler and timer thread - * (which isn't a Ruby Thread object) - */ -#define write_or_abort(fd, str, len) (write((fd), (str), (len)) < 0 ? abort() : (void)0) -#define WRITE_CONST(fd,str) write_or_abort((fd),(str),sizeof(str) - 1) - -void -rb_async_bug_errno(const char *mesg, int errno_arg) -{ - WRITE_CONST(2, "[ASYNC BUG] "); - write_or_abort(2, mesg, strlen(mesg)); - WRITE_CONST(2, "\n"); - - if (errno_arg == 0) { - WRITE_CONST(2, "errno == 0 (NOERROR)\n"); - } - else { - const char *errno_str = rb_strerrno(errno_arg); - - if (!errno_str) - errno_str = "undefined errno"; - write_or_abort(2, errno_str, strlen(errno_str)); - } - WRITE_CONST(2, "\n\n"); - write_or_abort(2, ruby_description, strlen(ruby_description)); - WRITE_CONST(2, "\n\n"); - WRITE_CONST(2, REPORTBUG_MSG); - abort(); -} - -void -rb_compile_bug(const char *file, int line, const char *fmt, ...) -{ - va_list args; - - va_start(args, fmt); - report_bug(file, line, fmt, args); - va_end(args); - - abort(); -} - -static const struct types { - int type; - const char *name; -} builtin_types[] = { - {T_NIL, "nil"}, - {T_OBJECT, "Object"}, - {T_CLASS, "Class"}, - {T_ICLASS, "iClass"}, /* internal use: mixed-in module holder */ - {T_MODULE, "Module"}, - {T_FLOAT, "Float"}, - {T_STRING, "String"}, - {T_REGEXP, "Regexp"}, - {T_ARRAY, "Array"}, - {T_FIXNUM, "Fixnum"}, - {T_HASH, "Hash"}, - {T_STRUCT, "Struct"}, - {T_BIGNUM, "Bignum"}, - {T_FILE, "File"}, - {T_RATIONAL,"Rational"}, - {T_COMPLEX, "Complex"}, - {T_TRUE, "true"}, - {T_FALSE, "false"}, - {T_SYMBOL, "Symbol"}, /* :symbol */ - {T_DATA, "Data"}, /* internal use: wrapped C pointers */ - {T_MATCH, "MatchData"}, /* data of $~ */ - {T_NODE, "Node"}, /* internal use: syntax tree node */ - {T_UNDEF, "undef"}, /* internal use: #undef; should not happen */ -}; - -void -rb_check_type(VALUE x, int t) -{ - const struct types *type = builtin_types; - const struct types *const typeend = builtin_types + - sizeof(builtin_types) / sizeof(builtin_types[0]); - int xt; - - if (x == Qundef) { - rb_bug("undef leaked to the Ruby space"); - } - - xt = TYPE(x); - if (xt != t || (xt == T_DATA && RTYPEDDATA_P(x))) { - while (type < typeend) { - if (type->type == t) { - const char *etype; - - if (NIL_P(x)) { - etype = "nil"; - } - else if (FIXNUM_P(x)) { - etype = "Fixnum"; - } - else if (SYMBOL_P(x)) { - etype = "Symbol"; - } - else if (rb_special_const_p(x)) { - x = rb_obj_as_string(x); - etype = StringValuePtr(x); - } - else { - etype = rb_obj_classname(x); - } - rb_raise(rb_eTypeError, "wrong argument type %s (expected %s)", - etype, type->name); - } - type++; - } - if (xt > T_MASK && xt <= 0x3f) { - rb_fatal("unknown type 0x%x (0x%x given, probably comes from extension library for ruby 1.8)", t, xt); - } - rb_bug("unknown type 0x%x (0x%x given)", t, xt); - } -} - -int -rb_typeddata_inherited_p(const rb_data_type_t *child, const rb_data_type_t *parent) -{ - while (child) { - if (child == parent) return 1; - child = child->parent; - } - return 0; -} - -int -rb_typeddata_is_kind_of(VALUE obj, const rb_data_type_t *data_type) -{ - if (SPECIAL_CONST_P(obj) || BUILTIN_TYPE(obj) != T_DATA || - !RTYPEDDATA_P(obj) || !rb_typeddata_inherited_p(RTYPEDDATA_TYPE(obj), data_type)) { - return 0; - } - return 1; -} - -void * -rb_check_typeddata(VALUE obj, const rb_data_type_t *data_type) -{ - const char *etype; - static const char mesg[] = "wrong argument type %s (expected %s)"; - - if (SPECIAL_CONST_P(obj) || BUILTIN_TYPE(obj) != T_DATA) { - Check_Type(obj, T_DATA); - } - if (!RTYPEDDATA_P(obj)) { - etype = rb_obj_classname(obj); - rb_raise(rb_eTypeError, mesg, etype, data_type->wrap_struct_name); - } - else if (!rb_typeddata_inherited_p(RTYPEDDATA_TYPE(obj), data_type)) { - etype = RTYPEDDATA_TYPE(obj)->wrap_struct_name; - rb_raise(rb_eTypeError, mesg, etype, data_type->wrap_struct_name); - } - return DATA_PTR(obj); -} - -/* exception classes */ -VALUE rb_eException; -VALUE rb_eSystemExit; -VALUE rb_eInterrupt; -VALUE rb_eSignal; -VALUE rb_eFatal; -VALUE rb_eStandardError; -VALUE rb_eRuntimeError; -VALUE rb_eTypeError; -VALUE rb_eArgError; -VALUE rb_eIndexError; -VALUE rb_eKeyError; -VALUE rb_eRangeError; -VALUE rb_eNameError; -VALUE rb_eEncodingError; -VALUE rb_eEncCompatError; -VALUE rb_eNoMethodError; -VALUE rb_eSecurityError; -VALUE rb_eNotImpError; -VALUE rb_eNoMemError; -VALUE rb_cNameErrorMesg; - -VALUE rb_eScriptError; -VALUE rb_eSyntaxError; -VALUE rb_eLoadError; - -VALUE rb_eSystemCallError; -VALUE rb_mErrno; -static VALUE rb_eNOERROR; - -#undef rb_exc_new2 - -VALUE -rb_exc_new(VALUE etype, const char *ptr, long len) -{ - return rb_funcall(etype, rb_intern("new"), 1, rb_str_new(ptr, len)); -} - -VALUE -rb_exc_new2(VALUE etype, const char *s) -{ - return rb_exc_new(etype, s, strlen(s)); -} - -VALUE -rb_exc_new3(VALUE etype, VALUE str) -{ - StringValue(str); - return rb_funcall(etype, rb_intern("new"), 1, str); -} - -/* - * call-seq: - * Exception.new(msg = nil) -> exception - * - * Construct a new Exception object, optionally passing in - * a message. - */ - -static VALUE -exc_initialize(int argc, VALUE *argv, VALUE exc) -{ - VALUE arg; - - rb_scan_args(argc, argv, "01", &arg); - rb_iv_set(exc, "mesg", arg); - rb_iv_set(exc, "bt", Qnil); - - return exc; -} - -/* - * Document-method: exception - * - * call-seq: - * exc.exception(string) -> an_exception or exc - * - * With no argument, or if the argument is the same as the receiver, - * return the receiver. Otherwise, create a new - * exception object of the same class as the receiver, but with a - * message equal to <code>string.to_str</code>. - * - */ - -static VALUE -exc_exception(int argc, VALUE *argv, VALUE self) -{ - VALUE exc; - - if (argc == 0) return self; - if (argc == 1 && self == argv[0]) return self; - exc = rb_obj_clone(self); - exc_initialize(argc, argv, exc); - - return exc; -} - -/* - * call-seq: - * exception.to_s -> string - * - * Returns exception's message (or the name of the exception if - * no message is set). - */ - -static VALUE -exc_to_s(VALUE exc) -{ - VALUE mesg = rb_attr_get(exc, rb_intern("mesg")); - VALUE r = Qnil; - - if (NIL_P(mesg)) return rb_class_name(CLASS_OF(exc)); - r = rb_String(mesg); - return r; -} - -/* - * call-seq: - * exception.message -> string - * - * Returns the result of invoking <code>exception.to_s</code>. - * Normally this returns the exception's message or name. By - * supplying a to_str method, exceptions are agreeing to - * be used where Strings are expected. - */ - -static VALUE -exc_message(VALUE exc) -{ - return rb_funcall(exc, rb_intern("to_s"), 0, 0); -} - -/* - * call-seq: - * exception.inspect -> string - * - * Return this exception's class name an message - */ - -static VALUE -exc_inspect(VALUE exc) -{ - VALUE str, klass; - - klass = CLASS_OF(exc); - exc = rb_obj_as_string(exc); - if (RSTRING_LEN(exc) == 0) { - return rb_str_dup(rb_class_name(klass)); - } - - str = rb_str_buf_new2("#<"); - klass = rb_class_name(klass); - rb_str_buf_append(str, klass); - rb_str_buf_cat(str, ": ", 2); - rb_str_buf_append(str, exc); - rb_str_buf_cat(str, ">", 1); - - return str; -} - -/* - * call-seq: - * exception.backtrace -> array - * - * Returns any backtrace associated with the exception. The backtrace - * is an array of strings, each containing either ``filename:lineNo: in - * `method''' or ``filename:lineNo.'' - * - * def a - * raise "boom" - * end - * - * def b - * a() - * end - * - * begin - * b() - * rescue => detail - * print detail.backtrace.join("\n") - * end - * - * <em>produces:</em> - * - * prog.rb:2:in `a' - * prog.rb:6:in `b' - * prog.rb:10 -*/ - -static VALUE -exc_backtrace(VALUE exc) -{ - ID bt; - - CONST_ID(bt, "bt"); - return rb_attr_get(exc, bt); -} - -VALUE -rb_check_backtrace(VALUE bt) -{ - long i; - static const char err[] = "backtrace must be Array of String"; - - if (!NIL_P(bt)) { - int t = TYPE(bt); - - if (t == T_STRING) return rb_ary_new3(1, bt); - if (t != T_ARRAY) { - rb_raise(rb_eTypeError, err); - } - for (i=0;i<RARRAY_LEN(bt);i++) { - if (TYPE(RARRAY_PTR(bt)[i]) != T_STRING) { - rb_raise(rb_eTypeError, err); - } - } - } - return bt; -} - -/* - * call-seq: - * exc.set_backtrace(array) -> array - * - * Sets the backtrace information associated with <i>exc</i>. The - * argument must be an array of <code>String</code> objects in the - * format described in <code>Exception#backtrace</code>. - * - */ - -static VALUE -exc_set_backtrace(VALUE exc, VALUE bt) -{ - return rb_iv_set(exc, "bt", rb_check_backtrace(bt)); -} - -/* - * call-seq: - * exc == obj -> true or false - * - * Equality---If <i>obj</i> is not an <code>Exception</code>, returns - * <code>false</code>. Otherwise, returns <code>true</code> if <i>exc</i> and - * <i>obj</i> share same class, messages, and backtrace. - */ - -static VALUE -exc_equal(VALUE exc, VALUE obj) -{ - VALUE mesg, backtrace; - ID id_mesg; - - if (exc == obj) return Qtrue; - CONST_ID(id_mesg, "mesg"); - - if (rb_obj_class(exc) != rb_obj_class(obj)) { - ID id_message, id_backtrace; - CONST_ID(id_message, "message"); - CONST_ID(id_backtrace, "backtrace"); - - mesg = rb_check_funcall(obj, id_message, 0, 0); - if (mesg == Qundef) return Qfalse; - backtrace = rb_check_funcall(obj, id_backtrace, 0, 0); - if (backtrace == Qundef) return Qfalse; - } - else { - mesg = rb_attr_get(obj, id_mesg); - backtrace = exc_backtrace(obj); - } - - if (!rb_equal(rb_attr_get(exc, id_mesg), mesg)) - return Qfalse; - if (!rb_equal(exc_backtrace(exc), backtrace)) - return Qfalse; - return Qtrue; -} - -/* - * call-seq: - * SystemExit.new(status=0) -> system_exit - * - * Create a new +SystemExit+ exception with the given status. - */ - -static VALUE -exit_initialize(int argc, VALUE *argv, VALUE exc) -{ - VALUE status = INT2FIX(EXIT_SUCCESS); - if (argc > 0 && FIXNUM_P(argv[0])) { - status = *argv++; - --argc; - } - rb_call_super(argc, argv); - rb_iv_set(exc, "status", status); - return exc; -} - - -/* - * call-seq: - * system_exit.status -> fixnum - * - * Return the status value associated with this system exit. - */ - -static VALUE -exit_status(VALUE exc) -{ - return rb_attr_get(exc, rb_intern("status")); -} - - -/* - * call-seq: - * system_exit.success? -> true or false - * - * Returns +true+ if exiting successful, +false+ if not. - */ - -static VALUE -exit_success_p(VALUE exc) -{ - VALUE status_val = rb_attr_get(exc, rb_intern("status")); - int status; - - if (NIL_P(status_val)) - return Qtrue; - status = NUM2INT(status_val); - if (WIFEXITED(status) && WEXITSTATUS(status) == EXIT_SUCCESS) - return Qtrue; - - return Qfalse; -} - -void -rb_name_error(ID id, const char *fmt, ...) -{ - VALUE exc, argv[2]; - va_list args; - - va_start(args, fmt); - argv[0] = rb_vsprintf(fmt, args); - va_end(args); - - argv[1] = ID2SYM(id); - exc = rb_class_new_instance(2, argv, rb_eNameError); - rb_exc_raise(exc); -} - -/* - * call-seq: - * NameError.new(msg [, name]) -> name_error - * - * Construct a new NameError exception. If given the <i>name</i> - * parameter may subsequently be examined using the <code>NameError.name</code> - * method. - */ - -static VALUE -name_err_initialize(int argc, VALUE *argv, VALUE self) -{ - VALUE name; - - name = (argc > 1) ? argv[--argc] : Qnil; - rb_call_super(argc, argv); - rb_iv_set(self, "name", name); - return self; -} - -/* - * call-seq: - * name_error.name -> string or nil - * - * Return the name associated with this NameError exception. - */ - -static VALUE -name_err_name(VALUE self) -{ - return rb_attr_get(self, rb_intern("name")); -} - -/* - * call-seq: - * name_error.to_s -> string - * - * Produce a nicely-formatted string representing the +NameError+. - */ - -static VALUE -name_err_to_s(VALUE exc) -{ - VALUE mesg = rb_attr_get(exc, rb_intern("mesg")); - VALUE str = mesg; - - if (NIL_P(mesg)) return rb_class_name(CLASS_OF(exc)); - StringValue(str); - return str; -} - -/* - * call-seq: - * NoMethodError.new(msg, name [, args]) -> no_method_error - * - * Construct a NoMethodError exception for a method of the given name - * called with the given arguments. The name may be accessed using - * the <code>#name</code> method on the resulting object, and the - * arguments using the <code>#args</code> method. - */ - -static VALUE -nometh_err_initialize(int argc, VALUE *argv, VALUE self) -{ - VALUE args = (argc > 2) ? argv[--argc] : Qnil; - name_err_initialize(argc, argv, self); - rb_iv_set(self, "args", args); - return self; -} - -/* :nodoc: */ -#define NAME_ERR_MESG_COUNT 3 - -static void -name_err_mesg_mark(void *p) -{ - VALUE *ptr = p; - rb_gc_mark_locations(ptr, ptr+NAME_ERR_MESG_COUNT); -} - -#define name_err_mesg_free RUBY_TYPED_DEFAULT_FREE - -static size_t -name_err_mesg_memsize(const void *p) -{ - return p ? (NAME_ERR_MESG_COUNT * sizeof(VALUE)) : 0; -} - -static const rb_data_type_t name_err_mesg_data_type = { - "name_err_mesg", - { - name_err_mesg_mark, - name_err_mesg_free, - name_err_mesg_memsize, - }, -}; - -/* :nodoc: */ -VALUE -rb_name_err_mesg_new(VALUE obj, VALUE mesg, VALUE recv, VALUE method) -{ - VALUE *ptr = ALLOC_N(VALUE, NAME_ERR_MESG_COUNT); - VALUE result; - - ptr[0] = mesg; - ptr[1] = recv; - ptr[2] = method; - result = TypedData_Wrap_Struct(rb_cNameErrorMesg, &name_err_mesg_data_type, ptr); - RB_GC_GUARD(mesg); - RB_GC_GUARD(recv); - RB_GC_GUARD(method); - return result; -} - -/* :nodoc: */ -static VALUE -name_err_mesg_equal(VALUE obj1, VALUE obj2) -{ - VALUE *ptr1, *ptr2; - int i; - - if (obj1 == obj2) return Qtrue; - if (rb_obj_class(obj2) != rb_cNameErrorMesg) - return Qfalse; - - TypedData_Get_Struct(obj1, VALUE, &name_err_mesg_data_type, ptr1); - TypedData_Get_Struct(obj2, VALUE, &name_err_mesg_data_type, ptr2); - for (i=0; i<NAME_ERR_MESG_COUNT; i++) { - if (!rb_equal(ptr1[i], ptr2[i])) - return Qfalse; - } - return Qtrue; -} - -/* :nodoc: */ -static VALUE -name_err_mesg_to_str(VALUE obj) -{ - VALUE *ptr, mesg; - TypedData_Get_Struct(obj, VALUE, &name_err_mesg_data_type, ptr); - - mesg = ptr[0]; - if (NIL_P(mesg)) return Qnil; - else { - const char *desc = 0; - VALUE d = 0, args[NAME_ERR_MESG_COUNT]; - int state = 0; - - obj = ptr[1]; - switch (TYPE(obj)) { - case T_NIL: - desc = "nil"; - break; - case T_TRUE: - desc = "true"; - break; - case T_FALSE: - desc = "false"; - break; - default: - d = rb_protect(rb_inspect, obj, &state); - if (state) - rb_set_errinfo(Qnil); - if (NIL_P(d) || RSTRING_LEN(d) > 65) { - d = rb_any_to_s(obj); - } - desc = RSTRING_PTR(d); - break; - } - if (desc && desc[0] != '#') { - d = d ? rb_str_dup(d) : rb_str_new2(desc); - rb_str_cat2(d, ":"); - rb_str_cat2(d, rb_obj_classname(obj)); - } - args[0] = mesg; - args[1] = ptr[2]; - args[2] = d; - mesg = rb_f_sprintf(NAME_ERR_MESG_COUNT, args); - } - return mesg; -} - -/* :nodoc: */ -static VALUE -name_err_mesg_load(VALUE klass, VALUE str) -{ - return str; -} - -/* - * call-seq: - * no_method_error.args -> obj - * - * Return the arguments passed in as the third parameter to - * the constructor. - */ - -static VALUE -nometh_err_args(VALUE self) -{ - return rb_attr_get(self, rb_intern("args")); -} - -void -rb_invalid_str(const char *str, const char *type) -{ - volatile VALUE s = rb_str_inspect(rb_str_new2(str)); - - rb_raise(rb_eArgError, "invalid value for %s: %s", type, RSTRING_PTR(s)); -} - -/* - * Document-module: Errno - * - * Ruby exception objects are subclasses of <code>Exception</code>. - * However, operating systems typically report errors using plain - * integers. Module <code>Errno</code> is created dynamically to map - * these operating system errors to Ruby classes, with each error - * number generating its own subclass of <code>SystemCallError</code>. - * As the subclass is created in module <code>Errno</code>, its name - * will start <code>Errno::</code>. - * - * The names of the <code>Errno::</code> classes depend on - * the environment in which Ruby runs. On a typical Unix or Windows - * platform, there are <code>Errno</code> classes such as - * <code>Errno::EACCES</code>, <code>Errno::EAGAIN</code>, - * <code>Errno::EINTR</code>, and so on. - * - * The integer operating system error number corresponding to a - * particular error is available as the class constant - * <code>Errno::</code><em>error</em><code>::Errno</code>. - * - * Errno::EACCES::Errno #=> 13 - * Errno::EAGAIN::Errno #=> 11 - * Errno::EINTR::Errno #=> 4 - * - * The full list of operating system errors on your particular platform - * are available as the constants of <code>Errno</code>. - * - * Errno.constants #=> :E2BIG, :EACCES, :EADDRINUSE, :EADDRNOTAVAIL, ... - */ - -static st_table *syserr_tbl; - -static VALUE -set_syserr(int n, const char *name) -{ - st_data_t error; - - if (!st_lookup(syserr_tbl, n, &error)) { - error = rb_define_class_under(rb_mErrno, name, rb_eSystemCallError); - rb_define_const(error, "Errno", INT2NUM(n)); - st_add_direct(syserr_tbl, n, error); - } - else { - rb_define_const(rb_mErrno, name, error); - } - return error; -} - -static VALUE -get_syserr(int n) -{ - st_data_t error; - - if (!st_lookup(syserr_tbl, n, &error)) { - char name[8]; /* some Windows' errno have 5 digits. */ - - snprintf(name, sizeof(name), "E%03d", n); - error = set_syserr(n, name); - } - return error; -} - -/* - * call-seq: - * SystemCallError.new(msg, errno) -> system_call_error_subclass - * - * If _errno_ corresponds to a known system error code, constructs - * the appropriate <code>Errno</code> class for that error, otherwise - * constructs a generic <code>SystemCallError</code> object. The - * error number is subsequently available via the <code>errno</code> - * method. - */ - -static VALUE -syserr_initialize(int argc, VALUE *argv, VALUE self) -{ -#if !defined(_WIN32) - char *strerror(); -#endif - const char *err; - VALUE mesg, error; - VALUE klass = rb_obj_class(self); - - if (klass == rb_eSystemCallError) { - st_data_t data = (st_data_t)klass; - rb_scan_args(argc, argv, "11", &mesg, &error); - if (argc == 1 && FIXNUM_P(mesg)) { - error = mesg; mesg = Qnil; - } - if (!NIL_P(error) && st_lookup(syserr_tbl, NUM2LONG(error), &data)) { - klass = (VALUE)data; - /* change class */ - if (TYPE(self) != T_OBJECT) { /* insurance to avoid type crash */ - rb_raise(rb_eTypeError, "invalid instance type"); - } - RBASIC(self)->klass = klass; - } - } - else { - rb_scan_args(argc, argv, "01", &mesg); - error = rb_const_get(klass, rb_intern("Errno")); - } - if (!NIL_P(error)) err = strerror(NUM2INT(error)); - else err = "unknown error"; - if (!NIL_P(mesg)) { - rb_encoding *le = rb_locale_encoding(); - VALUE str = StringValue(mesg); - rb_encoding *me = rb_enc_get(mesg); - - mesg = rb_sprintf("%s - %.*s", err, - (int)RSTRING_LEN(str), RSTRING_PTR(str)); - if (le != me && rb_enc_asciicompat(me)) { - le = me; - }/* else assume err is non ASCII string. */ - OBJ_INFECT(mesg, str); - rb_enc_associate(mesg, le); - } - else { - mesg = rb_str_new2(err); - rb_enc_associate(mesg, rb_locale_encoding()); - } - rb_call_super(1, &mesg); - rb_iv_set(self, "errno", error); - return self; -} - -/* - * call-seq: - * system_call_error.errno -> fixnum - * - * Return this SystemCallError's error number. - */ - -static VALUE -syserr_errno(VALUE self) -{ - return rb_attr_get(self, rb_intern("errno")); -} - -/* - * call-seq: - * system_call_error === other -> true or false - * - * Return +true+ if the receiver is a generic +SystemCallError+, or - * if the error numbers +self+ and _other_ are the same. - */ - -static VALUE -syserr_eqq(VALUE self, VALUE exc) -{ - VALUE num, e; - ID en; - - CONST_ID(en, "errno"); - - if (!rb_obj_is_kind_of(exc, rb_eSystemCallError)) { - if (!rb_respond_to(exc, en)) return Qfalse; - } - else if (self == rb_eSystemCallError) return Qtrue; - - num = rb_attr_get(exc, rb_intern("errno")); - if (NIL_P(num)) { - num = rb_funcall(exc, en, 0, 0); - } - e = rb_const_get(self, rb_intern("Errno")); - if (FIXNUM_P(num) ? num == e : rb_equal(num, e)) - return Qtrue; - return Qfalse; -} - - -/* - * Document-class: StandardError - * - * The most standard error types are subclasses of StandardError. A - * rescue clause without an explicit Exception class will rescue all - * StandardErrors (and only those). - * - * def foo - * raise "Oups" - * end - * foo rescue "Hello" #=> "Hello" - * - * On the other hand: - * - * require 'does/not/exist' rescue "Hi" - * - * <em>raises the exception:</em> - * - * LoadError: no such file to load -- does/not/exist - * - */ - -/* - * Document-class: SystemExit - * - * Raised by +exit+ to initiate the termination of the script. - */ - -/* - * Document-class: SignalException - * - * Raised when a signal is received. - * - * begin - * Process.kill('HUP',Process.pid) - * rescue SignalException => e - * puts "received Exception #{e}" - * end - * - * <em>produces:</em> - * - * received Exception SIGHUP - */ - -/* - * Document-class: Interrupt - * - * Raised with the interrupt signal is received, typically because the - * user pressed on Control-C (on most posix platforms). As such, it is a - * subclass of +SignalException+. - * - * begin - * puts "Press ctrl-C when you get bored" - * loop {} - * rescue Interrupt => e - * puts "Note: You will typically use Signal.trap instead." - * end - * - * <em>produces:</em> - * - * Press ctrl-C when you get bored - * - * <em>then waits until it is interrupted with Control-C and then prints:</em> - * - * Note: You will typically use Signal.trap instead. - */ - -/* - * Document-class: TypeError - * - * Raised when encountering an object that is not of the expected type. - * - * [1, 2, 3].first("two") - * - * <em>raises the exception:</em> - * - * TypeError: can't convert String into Integer - * - */ - -/* - * Document-class: ArgumentError - * - * Raised when the arguments are wrong and there isn't a more specific - * Exception class. - * - * Ex: passing the wrong number of arguments - * - * [1, 2, 3].first(4, 5) - * - * <em>raises the exception:</em> - * - * ArgumentError: wrong number of arguments (2 for 1) - * - * Ex: passing an argument that is not acceptable: - * - * [1, 2, 3].first(-4) - * - * <em>raises the exception:</em> - * - * ArgumentError: negative array size - */ - -/* - * Document-class: IndexError - * - * Raised when the given index is invalid. - * - * a = [:foo, :bar] - * a.fetch(0) #=> :foo - * a[4] #=> nil - * a.fetch(4) #=> IndexError: index 4 outside of array bounds: -2...2 - * - */ - -/* - * Document-class: KeyError - * - * Raised when the specified key is not found. It is a subclass of - * IndexError. - * - * h = {"foo" => :bar} - * h.fetch("foo") #=> :bar - * h.fetch("baz") #=> KeyError: key not found: "baz" - * - */ - -/* - * Document-class: RangeError - * - * Raised when a given numerical value is out of range. - * - * [1, 2, 3].drop(1 << 100) - * - * <em>raises the exception:</em> - * - * RangeError: bignum too big to convert into `long' - */ - -/* - * Document-class: ScriptError - * - * ScriptError is the superclass for errors raised when a script - * can not be executed because of a +LoadError+, - * +NotImplementedError+ or a +SyntaxError+. Note these type of - * +ScriptErrors+ are not +StandardError+ and will not be - * rescued unless it is specified explicitly (or its ancestor - * +Exception+). - */ - -/* - * Document-class: SyntaxError - * - * Raised when encountering Ruby code with an invalid syntax. - * - * eval("1+1=2") - * - * <em>raises the exception:</em> - * - * SyntaxError: (eval):1: syntax error, unexpected '=', expecting $end - */ - -/* - * Document-class: LoadError - * - * Raised when a file required (a Ruby script, extension library, ...) - * fails to load. - * - * require 'this/file/does/not/exist' - * - * <em>raises the exception:</em> - * - * LoadError: no such file to load -- this/file/does/not/exist - */ - -/* - * Document-class: NotImplementedError - * - * Raised when a feature is not implemented on the current platform. For - * example, methods depending on the +fsync+ or +fork+ system calls may - * raise this exception if the underlying operating system or Ruby - * runtime does not support them. - * - * Note that if +fork+ raises a +NotImplementedError+, then - * <code>respond_to?(:fork)</code> returns +false+. - */ - -/* - * Document-class: NameError - * - * Raised when a given name is invalid or undefined. - * - * puts foo - * - * <em>raises the exception:</em> - * - * NameError: undefined local variable or method `foo' for main:Object - * - * Since constant names must start with a capital: - * - * Fixnum.const_set :answer, 42 - * - * <em>raises the exception:</em> - * - * NameError: wrong constant name answer - */ - -/* - * Document-class: NoMethodError - * - * Raised when a method is called on a receiver which doesn't have it - * defined and also fails to respond with +method_missing+. - * - * "hello".to_ary - * - * <em>raises the exception:</em> - * - * NoMethodError: undefined method `to_ary' for "hello":String - */ - -/* - * Document-class: RuntimeError - * - * A generic error class raised when an invalid operation is attempted. - * - * [1, 2, 3].freeze << 4 - * - * <em>raises the exception:</em> - * - * RuntimeError: can't modify frozen array - * - * Kernel.raise will raise a RuntimeError if no Exception class is - * specified. - * - * raise "ouch" - * - * <em>raises the exception:</em> - * - * RuntimeError: ouch - */ - -/* - * Document-class: SecurityError - * - * Raised when attempting a potential unsafe operation, typically when - * the $SAFE level is raised above 0. - * - * foo = "bar" - * proc = Proc.new do - * $SAFE = 4 - * foo.gsub! "a", "*" - * end - * proc.call - * - * <em>raises the exception:</em> - * - * SecurityError: Insecure: can't modify string - */ - -/* - * Document-class: NoMemoryError - * - * Raised when memory allocation fails. - */ - -/* - * Document-class: SystemCallError - * - * SystemCallError is the base class for all low-level - * platform-dependent errors. - * - * The errors available on the current platform are subclasses of - * SystemCallError and are defined in the Errno module. - * - * File.open("does/not/exist") - * - * <em>raises the exception:</em> - * - * Errno::ENOENT: No such file or directory - does/not/exist - */ - -/* - * Document-class: EncodingError - * - * EncodingError is the base class for encoding errors. - */ - -/* - * Document-class: Encoding::CompatibilityError - * - * Raised by Encoding and String methods when the source encoding is - * incompatible with the target encoding. - */ - -/* - * Document-class: fatal - * - * fatal is an Exception that is raised when ruby has encountered a fatal - * error and must exit. You are not able to rescue fatal. - */ - -/* - * Document-class: NameError::message - * :nodoc: - */ - -/* - * Descendants of class <code>Exception</code> are used to communicate - * between <code>raise</code> methods and <code>rescue</code> - * statements in <code>begin/end</code> blocks. <code>Exception</code> - * objects carry information about the exception---its type (the - * exception's class name), an optional descriptive string, and - * optional traceback information. Programs may subclass - * <code>Exception</code>, or more typically <code>StandardError</code> - * to provide custom classes and add additional information. - */ - -void -Init_Exception(void) -{ - rb_eException = rb_define_class("Exception", rb_cObject); - rb_define_singleton_method(rb_eException, "exception", rb_class_new_instance, -1); - rb_define_method(rb_eException, "exception", exc_exception, -1); - rb_define_method(rb_eException, "initialize", exc_initialize, -1); - rb_define_method(rb_eException, "==", exc_equal, 1); - rb_define_method(rb_eException, "to_s", exc_to_s, 0); - rb_define_method(rb_eException, "message", exc_message, 0); - rb_define_method(rb_eException, "inspect", exc_inspect, 0); - rb_define_method(rb_eException, "backtrace", exc_backtrace, 0); - rb_define_method(rb_eException, "set_backtrace", exc_set_backtrace, 1); - - rb_eSystemExit = rb_define_class("SystemExit", rb_eException); - rb_define_method(rb_eSystemExit, "initialize", exit_initialize, -1); - rb_define_method(rb_eSystemExit, "status", exit_status, 0); - rb_define_method(rb_eSystemExit, "success?", exit_success_p, 0); - - rb_eFatal = rb_define_class("fatal", rb_eException); - rb_eSignal = rb_define_class("SignalException", rb_eException); - rb_eInterrupt = rb_define_class("Interrupt", rb_eSignal); - - rb_eStandardError = rb_define_class("StandardError", rb_eException); - rb_eTypeError = rb_define_class("TypeError", rb_eStandardError); - rb_eArgError = rb_define_class("ArgumentError", rb_eStandardError); - rb_eIndexError = rb_define_class("IndexError", rb_eStandardError); - rb_eKeyError = rb_define_class("KeyError", rb_eIndexError); - rb_eRangeError = rb_define_class("RangeError", rb_eStandardError); - - rb_eScriptError = rb_define_class("ScriptError", rb_eException); - rb_eSyntaxError = rb_define_class("SyntaxError", rb_eScriptError); - rb_eLoadError = rb_define_class("LoadError", rb_eScriptError); - rb_eNotImpError = rb_define_class("NotImplementedError", rb_eScriptError); - - rb_eNameError = rb_define_class("NameError", rb_eStandardError); - rb_define_method(rb_eNameError, "initialize", name_err_initialize, -1); - rb_define_method(rb_eNameError, "name", name_err_name, 0); - rb_define_method(rb_eNameError, "to_s", name_err_to_s, 0); - rb_cNameErrorMesg = rb_define_class_under(rb_eNameError, "message", rb_cData); - rb_define_singleton_method(rb_cNameErrorMesg, "!", rb_name_err_mesg_new, NAME_ERR_MESG_COUNT); - rb_define_method(rb_cNameErrorMesg, "==", name_err_mesg_equal, 1); - rb_define_method(rb_cNameErrorMesg, "to_str", name_err_mesg_to_str, 0); - rb_define_method(rb_cNameErrorMesg, "_dump", name_err_mesg_to_str, 1); - rb_define_singleton_method(rb_cNameErrorMesg, "_load", name_err_mesg_load, 1); - rb_eNoMethodError = rb_define_class("NoMethodError", rb_eNameError); - rb_define_method(rb_eNoMethodError, "initialize", nometh_err_initialize, -1); - rb_define_method(rb_eNoMethodError, "args", nometh_err_args, 0); - - rb_eRuntimeError = rb_define_class("RuntimeError", rb_eStandardError); - rb_eSecurityError = rb_define_class("SecurityError", rb_eException); - rb_eNoMemError = rb_define_class("NoMemoryError", rb_eException); - rb_eEncodingError = rb_define_class("EncodingError", rb_eStandardError); - rb_eEncCompatError = rb_define_class_under(rb_cEncoding, "CompatibilityError", rb_eEncodingError); - - syserr_tbl = st_init_numtable(); - rb_eSystemCallError = rb_define_class("SystemCallError", rb_eStandardError); - rb_define_method(rb_eSystemCallError, "initialize", syserr_initialize, -1); - rb_define_method(rb_eSystemCallError, "errno", syserr_errno, 0); - rb_define_singleton_method(rb_eSystemCallError, "===", syserr_eqq, 1); - - rb_mErrno = rb_define_module("Errno"); - - rb_define_global_function("warn", rb_warn_m, 1); -} - -void -rb_raise(VALUE exc, const char *fmt, ...) -{ - va_list args; - VALUE mesg; - - va_start(args, fmt); - mesg = rb_vsprintf(fmt, args); - va_end(args); - rb_exc_raise(rb_exc_new3(exc, mesg)); -} - -void -rb_loaderror(const char *fmt, ...) -{ - va_list args; - VALUE mesg; - - va_start(args, fmt); - mesg = rb_enc_vsprintf(rb_locale_encoding(), fmt, args); - va_end(args); - rb_exc_raise(rb_exc_new3(rb_eLoadError, mesg)); -} - -void -rb_notimplement(void) -{ - rb_raise(rb_eNotImpError, - "%s() function is unimplemented on this machine", - rb_id2name(rb_frame_this_func())); -} - -void -rb_fatal(const char *fmt, ...) -{ - va_list args; - VALUE mesg; - - va_start(args, fmt); - mesg = rb_vsprintf(fmt, args); - va_end(args); - - rb_exc_fatal(rb_exc_new3(rb_eFatal, mesg)); -} - -static VALUE -make_errno_exc(const char *mesg) -{ - int n = errno; - - errno = 0; - if (n == 0) { - rb_bug("rb_sys_fail(%s) - errno == 0", mesg ? mesg : ""); - } - return rb_syserr_new(n, mesg); -} - -static VALUE -make_errno_exc_str(VALUE mesg) -{ - int n = errno; - - errno = 0; - if (!mesg) mesg = Qnil; - if (n == 0) { - const char *s = !NIL_P(mesg) ? RSTRING_PTR(mesg) : ""; - rb_bug("rb_sys_fail_str(%s) - errno == 0", s); - } - return rb_syserr_new_str(n, mesg); -} - -VALUE -rb_syserr_new(int n, const char *mesg) -{ - VALUE arg; - arg = mesg ? rb_str_new2(mesg) : Qnil; - return rb_syserr_new_str(n, arg); -} - -VALUE -rb_syserr_new_str(int n, VALUE arg) -{ - return rb_class_new_instance(1, &arg, get_syserr(n)); -} - -void -rb_syserr_fail(int e, const char *mesg) -{ - rb_exc_raise(rb_syserr_new(e, mesg)); -} - -void -rb_syserr_fail_str(int e, VALUE mesg) -{ - rb_exc_raise(rb_syserr_new_str(e, mesg)); -} - -void -rb_sys_fail(const char *mesg) -{ - rb_exc_raise(make_errno_exc(mesg)); -} - -void -rb_sys_fail_str(VALUE mesg) -{ - rb_exc_raise(make_errno_exc_str(mesg)); -} - -void -rb_mod_sys_fail(VALUE mod, const char *mesg) -{ - VALUE exc = make_errno_exc(mesg); - rb_extend_object(exc, mod); - rb_exc_raise(exc); -} - -void -rb_mod_sys_fail_str(VALUE mod, VALUE mesg) -{ - VALUE exc = make_errno_exc_str(mesg); - rb_extend_object(exc, mod); - rb_exc_raise(exc); -} - -void -rb_mod_syserr_fail(VALUE mod, int e, const char *mesg) -{ - VALUE exc = rb_syserr_new(e, mesg); - rb_extend_object(exc, mod); - rb_exc_raise(exc); -} - -void -rb_mod_syserr_fail_str(VALUE mod, int e, VALUE mesg) -{ - VALUE exc = rb_syserr_new_str(e, mesg); - rb_extend_object(exc, mod); - rb_exc_raise(exc); -} - -void -rb_sys_warning(const char *fmt, ...) -{ - char buf[BUFSIZ]; - va_list args; - int errno_save; - - errno_save = errno; - - if (!RTEST(ruby_verbose)) return; - - snprintf(buf, BUFSIZ, "warning: %s", fmt); - snprintf(buf+strlen(buf), BUFSIZ-strlen(buf), ": %s", strerror(errno_save)); - - va_start(args, fmt); - warn_print(buf, args); - va_end(args); - errno = errno_save; -} - -void -rb_load_fail(const char *path) -{ - rb_loaderror("%s -- %s", strerror(errno), path); -} - -void -rb_error_frozen(const char *what) -{ - rb_raise(rb_eRuntimeError, "can't modify frozen %s", what); -} - -#undef rb_check_frozen -void -rb_check_frozen(VALUE obj) -{ - rb_check_frozen_internal(obj); -} - -void -Init_syserr(void) -{ - rb_eNOERROR = set_syserr(0, "NOERROR"); -#define defined_error(name, num) set_syserr((num), (name)); -#define undefined_error(name) set_syserr(0, (name)); -#include "known_errors.inc" -#undef defined_error -#undef undefined_error -} - -static void -err_append(const char *s, rb_encoding *enc) -{ - rb_thread_t *th = GET_THREAD(); - VALUE err = th->errinfo; - - if (th->mild_compile_error) { - if (!RTEST(err)) { - err = rb_exc_new3(rb_eSyntaxError, - rb_enc_str_new(s, strlen(s), enc)); - th->errinfo = err; - } - else { - VALUE str = rb_obj_as_string(err); - - rb_str_cat2(str, "\n"); - rb_str_cat2(str, s); - th->errinfo = rb_exc_new3(rb_eSyntaxError, str); - } - } - else { - if (!RTEST(err)) { - err = rb_exc_new2(rb_eSyntaxError, "compile error"); - th->errinfo = err; - } - rb_write_error(s); - rb_write_error("\n"); - } -} |