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-rw-r--r--vm_eval.c2202
1 files changed, 2202 insertions, 0 deletions
diff --git a/vm_eval.c b/vm_eval.c
new file mode 100644
index 0000000000..a62e2a7a62
--- /dev/null
+++ b/vm_eval.c
@@ -0,0 +1,2202 @@
+/**********************************************************************
+
+ vm_eval.c -
+
+ $Author$
+ created at: Sat May 24 16:02:32 JST 2008
+
+ Copyright (C) 1993-2007 Yukihiro Matsumoto
+ Copyright (C) 2000 Network Applied Communication Laboratory, Inc.
+ Copyright (C) 2000 Information-technology Promotion Agency, Japan
+
+**********************************************************************/
+
+struct local_var_list {
+ VALUE tbl;
+};
+
+static inline VALUE method_missing(VALUE obj, ID id, int argc, const VALUE *argv, enum method_missing_reason call_status);
+static inline VALUE vm_yield_with_cref(rb_execution_context_t *ec, int argc, const VALUE *argv, const rb_cref_t *cref, int is_lambda);
+static inline VALUE vm_yield(rb_execution_context_t *ec, int argc, const VALUE *argv);
+static inline VALUE vm_yield_with_block(rb_execution_context_t *ec, int argc, const VALUE *argv, VALUE block_handler);
+static inline VALUE vm_yield_force_blockarg(rb_execution_context_t *ec, VALUE args);
+static VALUE vm_exec(rb_execution_context_t *ec);
+static void vm_set_eval_stack(rb_execution_context_t * th, const rb_iseq_t *iseq, const rb_cref_t *cref, const struct rb_block *base_block);
+static int vm_collect_local_variables_in_heap(const VALUE *dfp, const struct local_var_list *vars);
+
+static VALUE rb_eUncaughtThrow;
+static ID id_result, id_tag, id_value;
+#define id_mesg idMesg
+
+typedef enum call_type {
+ CALL_PUBLIC,
+ CALL_FCALL,
+ CALL_VCALL,
+ CALL_TYPE_MAX
+} call_type;
+
+static VALUE send_internal(int argc, const VALUE *argv, VALUE recv, call_type scope);
+static VALUE vm_call0_body(rb_execution_context_t* ec, struct rb_calling_info *calling, const struct rb_call_info *ci, struct rb_call_cache *cc, const VALUE *argv);
+
+static VALUE
+vm_call0(rb_execution_context_t *ec, VALUE recv, ID id, int argc, const VALUE *argv, const rb_callable_method_entry_t *me)
+{
+ struct rb_calling_info calling_entry, *calling;
+ struct rb_call_info ci_entry;
+ struct rb_call_cache cc_entry;
+
+ calling = &calling_entry;
+
+ ci_entry.flag = 0;
+ ci_entry.mid = id;
+
+ cc_entry.me = me;
+
+ calling->recv = recv;
+ calling->argc = argc;
+
+ return vm_call0_body(ec, calling, &ci_entry, &cc_entry, argv);
+}
+
+static VALUE
+vm_call0_cfunc_with_frame(rb_execution_context_t* ec, struct rb_calling_info *calling, const struct rb_call_info *ci, struct rb_call_cache *cc, const VALUE *argv)
+{
+ VALUE val;
+ const rb_callable_method_entry_t *me = cc->me;
+ const rb_method_cfunc_t *cfunc = &me->def->body.cfunc;
+ int len = cfunc->argc;
+ VALUE recv = calling->recv;
+ int argc = calling->argc;
+ ID mid = ci->mid;
+ VALUE block_handler = calling->block_handler;
+
+ RUBY_DTRACE_CMETHOD_ENTRY_HOOK(ec, me->owner, me->def->original_id);
+ EXEC_EVENT_HOOK(ec, RUBY_EVENT_C_CALL, recv, me->def->original_id, mid, me->owner, Qnil);
+ {
+ rb_control_frame_t *reg_cfp = ec->cfp;
+
+ vm_push_frame(ec, 0, VM_FRAME_MAGIC_CFUNC | VM_FRAME_FLAG_CFRAME | VM_ENV_FLAG_LOCAL, recv,
+ block_handler, (VALUE)me,
+ 0, reg_cfp->sp, 0, 0);
+
+ if (len >= 0) rb_check_arity(argc, len, len);
+
+ VM_PROFILE_UP(C2C_CALL);
+ val = (*cfunc->invoker)(cfunc->func, recv, argc, argv);
+
+ CHECK_CFP_CONSISTENCY("vm_call0_cfunc_with_frame");
+ VM_PROFILE_UP(C2C_POPF);
+ rb_vm_pop_frame(ec);
+ }
+ EXEC_EVENT_HOOK(ec, RUBY_EVENT_C_RETURN, recv, me->def->original_id, mid, me->owner, val);
+ RUBY_DTRACE_CMETHOD_RETURN_HOOK(ec, me->owner, me->def->original_id);
+
+ return val;
+}
+
+static VALUE
+vm_call0_cfunc(rb_execution_context_t *ec, struct rb_calling_info *calling, const struct rb_call_info *ci, struct rb_call_cache *cc, const VALUE *argv)
+{
+ return vm_call0_cfunc_with_frame(ec, calling, ci, cc, argv);
+}
+
+/* `ci' should point temporal value (on stack value) */
+static VALUE
+vm_call0_body(rb_execution_context_t *ec, struct rb_calling_info *calling, const struct rb_call_info *ci, struct rb_call_cache *cc, const VALUE *argv)
+{
+ VALUE ret;
+
+ calling->block_handler = vm_passed_block_handler(ec);
+
+ again:
+ switch (cc->me->def->type) {
+ case VM_METHOD_TYPE_ISEQ:
+ {
+ rb_control_frame_t *reg_cfp = ec->cfp;
+ int i;
+
+ CHECK_VM_STACK_OVERFLOW(reg_cfp, calling->argc + 1);
+
+ *reg_cfp->sp++ = calling->recv;
+ for (i = 0; i < calling->argc; i++) {
+ *reg_cfp->sp++ = argv[i];
+ }
+
+ vm_call_iseq_setup(ec, reg_cfp, calling, ci, cc);
+ VM_ENV_FLAGS_SET(ec->cfp->ep, VM_FRAME_FLAG_FINISH);
+ return vm_exec(ec); /* CHECK_INTS in this function */
+ }
+ case VM_METHOD_TYPE_NOTIMPLEMENTED:
+ case VM_METHOD_TYPE_CFUNC:
+ ret = vm_call0_cfunc(ec, calling, ci, cc, argv);
+ goto success;
+ case VM_METHOD_TYPE_ATTRSET:
+ rb_check_arity(calling->argc, 1, 1);
+ ret = rb_ivar_set(calling->recv, cc->me->def->body.attr.id, argv[0]);
+ goto success;
+ case VM_METHOD_TYPE_IVAR:
+ rb_check_arity(calling->argc, 0, 0);
+ ret = rb_attr_get(calling->recv, cc->me->def->body.attr.id);
+ goto success;
+ case VM_METHOD_TYPE_BMETHOD:
+ ret = vm_call_bmethod_body(ec, calling, ci, cc, argv);
+ goto success;
+ case VM_METHOD_TYPE_ZSUPER:
+ case VM_METHOD_TYPE_REFINED:
+ {
+ const rb_method_type_t type = cc->me->def->type;
+ VALUE super_class = cc->me->defined_class;
+
+ if (type == VM_METHOD_TYPE_ZSUPER) {
+ super_class = RCLASS_ORIGIN(super_class);
+ }
+ else if (cc->me->def->body.refined.orig_me) {
+ cc->me = refined_method_callable_without_refinement(cc->me);
+ goto again;
+ }
+
+ super_class = RCLASS_SUPER(super_class);
+
+ if (!super_class || !(cc->me = rb_callable_method_entry(super_class, ci->mid))) {
+ enum method_missing_reason ex = (type == VM_METHOD_TYPE_ZSUPER) ? MISSING_SUPER : 0;
+ ret = method_missing(calling->recv, ci->mid, calling->argc, argv, ex);
+ goto success;
+ }
+ RUBY_VM_CHECK_INTS(ec);
+ goto again;
+ }
+ case VM_METHOD_TYPE_ALIAS:
+ cc->me = aliased_callable_method_entry(cc->me);
+ goto again;
+ case VM_METHOD_TYPE_MISSING:
+ {
+ vm_passed_block_handler_set(ec, calling->block_handler);
+ return method_missing(calling->recv, ci->mid, calling->argc,
+ argv, MISSING_NOENTRY);
+ }
+ case VM_METHOD_TYPE_OPTIMIZED:
+ switch (cc->me->def->body.optimize_type) {
+ case OPTIMIZED_METHOD_TYPE_SEND:
+ ret = send_internal(calling->argc, argv, calling->recv, CALL_FCALL);
+ goto success;
+ case OPTIMIZED_METHOD_TYPE_CALL:
+ {
+ rb_proc_t *proc;
+ GetProcPtr(calling->recv, proc);
+ ret = rb_vm_invoke_proc(ec, proc, calling->argc, argv, calling->block_handler);
+ goto success;
+ }
+ default:
+ rb_bug("vm_call0: unsupported optimized method type (%d)", cc->me->def->body.optimize_type);
+ }
+ break;
+ case VM_METHOD_TYPE_UNDEF:
+ break;
+ }
+ rb_bug("vm_call0: unsupported method type (%d)", cc->me->def->type);
+ return Qundef;
+
+ success:
+ RUBY_VM_CHECK_INTS(ec);
+ return ret;
+}
+
+VALUE
+rb_vm_call(rb_execution_context_t *ec, VALUE recv, VALUE id, int argc, const VALUE *argv, const rb_callable_method_entry_t *me)
+{
+ return vm_call0(ec, recv, id, argc, argv, me);
+}
+
+static inline VALUE
+vm_call_super(rb_execution_context_t *ec, int argc, const VALUE *argv)
+{
+ VALUE recv = ec->cfp->self;
+ VALUE klass;
+ ID id;
+ rb_control_frame_t *cfp = ec->cfp;
+ const rb_callable_method_entry_t *me = rb_vm_frame_method_entry(cfp);
+
+ if (VM_FRAME_RUBYFRAME_P(cfp)) {
+ rb_bug("vm_call_super: should not be reached");
+ }
+
+ klass = RCLASS_ORIGIN(me->defined_class);
+ klass = RCLASS_SUPER(klass);
+ id = me->def->original_id;
+ me = rb_callable_method_entry(klass, id);
+
+ if (!me) {
+ return method_missing(recv, id, argc, argv, MISSING_SUPER);
+ }
+ else {
+ return vm_call0(ec, recv, id, argc, argv, me);
+ }
+}
+
+VALUE
+rb_call_super(int argc, const VALUE *argv)
+{
+ rb_execution_context_t *ec = GET_EC();
+ PASS_PASSED_BLOCK_HANDLER_EC(ec);
+ return vm_call_super(ec, argc, argv);
+}
+
+VALUE
+rb_current_receiver(void)
+{
+ const rb_execution_context_t *ec = GET_EC();
+ rb_control_frame_t *cfp;
+ if (!ec || !(cfp = ec->cfp)) {
+ rb_raise(rb_eRuntimeError, "no self, no life");
+ }
+ return cfp->self;
+}
+
+static inline void
+stack_check(rb_execution_context_t *ec)
+{
+ if (!rb_ec_raised_p(ec, RAISED_STACKOVERFLOW) &&
+ rb_ec_stack_check(ec)) {
+ rb_ec_raised_set(ec, RAISED_STACKOVERFLOW);
+ rb_ec_stack_overflow(ec, FALSE);
+ }
+}
+
+static inline const rb_callable_method_entry_t *rb_search_method_entry(VALUE recv, ID mid);
+static inline enum method_missing_reason rb_method_call_status(rb_execution_context_t *ec, const rb_callable_method_entry_t *me, call_type scope, VALUE self);
+
+/*!
+ * \internal
+ * calls the specified method.
+ *
+ * This function is called by functions in rb_call* family.
+ * \param ec current execution context
+ * \param recv receiver of the method
+ * \param mid an ID that represents the name of the method
+ * \param argc the number of method arguments
+ * \param argv a pointer to an array of method arguments
+ * \param scope
+ * \param self self in the caller. Qundef means no self is considered and
+ * protected methods cannot be called
+ *
+ * \note \a self is used in order to controlling access to protected methods.
+ */
+static inline VALUE
+rb_call0(rb_execution_context_t *ec,
+ VALUE recv, ID mid, int argc, const VALUE *argv,
+ call_type scope, VALUE self)
+{
+ const rb_callable_method_entry_t *me = rb_search_method_entry(recv, mid);
+ enum method_missing_reason call_status = rb_method_call_status(ec, me, scope, self);
+
+ if (call_status != MISSING_NONE) {
+ return method_missing(recv, mid, argc, argv, call_status);
+ }
+ stack_check(ec);
+ return vm_call0(ec, recv, mid, argc, argv, me);
+}
+
+struct rescue_funcall_args {
+ VALUE defined_class;
+ VALUE recv;
+ ID mid;
+ rb_execution_context_t *ec;
+ const rb_method_entry_t *me;
+ unsigned int respond: 1;
+ unsigned int respond_to_missing: 1;
+ int argc;
+ const VALUE *argv;
+};
+
+static VALUE
+check_funcall_exec(struct rescue_funcall_args *args)
+{
+ return call_method_entry(args->ec, args->defined_class,
+ args->recv, idMethodMissing,
+ args->me, args->argc, args->argv);
+}
+
+static VALUE
+check_funcall_failed(struct rescue_funcall_args *args, VALUE e)
+{
+ int ret = args->respond;
+ if (!ret) {
+ switch (rb_method_boundp(args->defined_class, args->mid,
+ BOUND_PRIVATE|BOUND_RESPONDS)) {
+ case 2:
+ ret = TRUE;
+ break;
+ case 0:
+ ret = args->respond_to_missing;
+ break;
+ default:
+ ret = FALSE;
+ break;
+ }
+ }
+ if (ret) {
+ rb_exc_raise(e);
+ }
+ return Qundef;
+}
+
+static int
+check_funcall_respond_to(rb_execution_context_t *ec, VALUE klass, VALUE recv, ID mid)
+{
+ return vm_respond_to(ec, klass, recv, mid, TRUE);
+}
+
+static int
+check_funcall_callable(rb_execution_context_t *ec, const rb_callable_method_entry_t *me)
+{
+ return rb_method_call_status(ec, me, CALL_FCALL, ec->cfp->self) == MISSING_NONE;
+}
+
+static VALUE
+check_funcall_missing(rb_execution_context_t *ec, VALUE klass, VALUE recv, ID mid, int argc, const VALUE *argv, int respond, VALUE def)
+{
+ struct rescue_funcall_args args;
+ const rb_method_entry_t *me;
+ VALUE ret = Qundef;
+
+ ret = basic_obj_respond_to_missing(ec, klass, recv,
+ ID2SYM(mid), Qtrue);
+ if (!RTEST(ret)) return def;
+ args.respond = respond > 0;
+ args.respond_to_missing = (ret != Qundef);
+ ret = def;
+ me = method_entry_get(klass, idMethodMissing, &args.defined_class);
+ if (me && !METHOD_ENTRY_BASIC(me)) {
+ VALUE argbuf, *new_args = ALLOCV_N(VALUE, argbuf, argc+1);
+
+ new_args[0] = ID2SYM(mid);
+ MEMCPY(new_args+1, argv, VALUE, argc);
+ ec->method_missing_reason = MISSING_NOENTRY;
+ args.ec = ec;
+ args.recv = recv;
+ args.me = me;
+ args.mid = mid;
+ args.argc = argc + 1;
+ args.argv = new_args;
+ ret = rb_rescue2(check_funcall_exec, (VALUE)&args,
+ check_funcall_failed, (VALUE)&args,
+ rb_eNoMethodError, (VALUE)0);
+ ALLOCV_END(argbuf);
+ }
+ return ret;
+}
+
+VALUE
+rb_check_funcall(VALUE recv, ID mid, int argc, const VALUE *argv)
+{
+ return rb_check_funcall_default(recv, mid, argc, argv, Qundef);
+}
+
+VALUE
+rb_check_funcall_default(VALUE recv, ID mid, int argc, const VALUE *argv, VALUE def)
+{
+ VALUE klass = CLASS_OF(recv);
+ const rb_callable_method_entry_t *me;
+ rb_execution_context_t *ec = GET_EC();
+ int respond = check_funcall_respond_to(ec, klass, recv, mid);
+
+ if (!respond)
+ return def;
+
+ me = rb_search_method_entry(recv, mid);
+ if (!check_funcall_callable(ec, me)) {
+ VALUE ret = check_funcall_missing(ec, klass, recv, mid, argc, argv,
+ respond, def);
+ if (ret == Qundef) ret = def;
+ return ret;
+ }
+ stack_check(ec);
+ return vm_call0(ec, recv, mid, argc, argv, me);
+}
+
+VALUE
+rb_check_funcall_with_hook(VALUE recv, ID mid, int argc, const VALUE *argv,
+ rb_check_funcall_hook *hook, VALUE arg)
+{
+ VALUE klass = CLASS_OF(recv);
+ const rb_callable_method_entry_t *me;
+ rb_execution_context_t *ec = GET_EC();
+ int respond = check_funcall_respond_to(ec, klass, recv, mid);
+
+ if (!respond) {
+ (*hook)(FALSE, recv, mid, argc, argv, arg);
+ return Qundef;
+ }
+
+ me = rb_search_method_entry(recv, mid);
+ if (!check_funcall_callable(ec, me)) {
+ VALUE ret = check_funcall_missing(ec, klass, recv, mid, argc, argv,
+ respond, Qundef);
+ (*hook)(ret != Qundef, recv, mid, argc, argv, arg);
+ return ret;
+ }
+ stack_check(ec);
+ (*hook)(TRUE, recv, mid, argc, argv, arg);
+ return vm_call0(ec, recv, mid, argc, argv, me);
+}
+
+const char *
+rb_type_str(enum ruby_value_type type)
+{
+#define type_case(t) case t: return #t;
+ switch (type) {
+ type_case(T_NONE)
+ type_case(T_OBJECT)
+ type_case(T_CLASS)
+ type_case(T_MODULE)
+ type_case(T_FLOAT)
+ type_case(T_STRING)
+ type_case(T_REGEXP)
+ type_case(T_ARRAY)
+ type_case(T_HASH)
+ type_case(T_STRUCT)
+ type_case(T_BIGNUM)
+ type_case(T_FILE)
+ type_case(T_DATA)
+ type_case(T_MATCH)
+ type_case(T_COMPLEX)
+ type_case(T_RATIONAL)
+ type_case(T_NIL)
+ type_case(T_TRUE)
+ type_case(T_FALSE)
+ type_case(T_SYMBOL)
+ type_case(T_FIXNUM)
+ type_case(T_IMEMO)
+ type_case(T_UNDEF)
+ type_case(T_NODE)
+ type_case(T_ICLASS)
+ type_case(T_ZOMBIE)
+ case T_MASK: break;
+ }
+#undef type_case
+ return NULL;
+}
+
+NORETURN(static void uncallable_object(VALUE recv, ID mid));
+static void
+uncallable_object(VALUE recv, ID mid)
+{
+ VALUE flags;
+ int type;
+ const char *typestr;
+ VALUE mname = rb_id2str(mid);
+
+ if (SPECIAL_CONST_P(recv)) {
+ rb_raise(rb_eNotImpError,
+ "method `%"PRIsVALUE"' called on unexpected immediate object (%p)",
+ mname, (void *)recv);
+ }
+ else if ((flags = RBASIC(recv)->flags) == 0) {
+ rb_raise(rb_eNotImpError,
+ "method `%"PRIsVALUE"' called on terminated object (%p)",
+ mname, (void *)recv);
+ }
+ else if (!(typestr = rb_type_str(type = BUILTIN_TYPE(recv)))) {
+ rb_raise(rb_eNotImpError,
+ "method `%"PRIsVALUE"' called on broken T_?""?""?(0x%02x) object"
+ " (%p flags=0x%"PRIxVALUE")",
+ mname, type, (void *)recv, flags);
+ }
+ else if (T_OBJECT <= type && type < T_NIL) {
+ rb_raise(rb_eNotImpError,
+ "method `%"PRIsVALUE"' called on hidden %s object"
+ " (%p flags=0x%"PRIxVALUE")",
+ mname, typestr, (void *)recv, flags);
+ }
+ else {
+ rb_raise(rb_eNotImpError,
+ "method `%"PRIsVALUE"' called on unexpected %s object"
+ " (%p flags=0x%"PRIxVALUE")",
+ mname, typestr, (void *)recv, flags);
+ }
+}
+
+static inline const rb_callable_method_entry_t *
+rb_search_method_entry(VALUE recv, ID mid)
+{
+ VALUE klass = CLASS_OF(recv);
+
+ if (!klass) uncallable_object(recv, mid);
+ return rb_callable_method_entry(klass, mid);
+}
+
+static inline enum method_missing_reason
+rb_method_call_status(rb_execution_context_t *ec, const rb_callable_method_entry_t *me, call_type scope, VALUE self)
+{
+ VALUE klass;
+ ID oid;
+ rb_method_visibility_t visi;
+
+ if (UNDEFINED_METHOD_ENTRY_P(me)) {
+ undefined:
+ return scope == CALL_VCALL ? MISSING_VCALL : MISSING_NOENTRY;
+ }
+ if (me->def->type == VM_METHOD_TYPE_REFINED) {
+ me = rb_resolve_refined_method_callable(Qnil, me);
+ if (UNDEFINED_METHOD_ENTRY_P(me)) goto undefined;
+ }
+
+ klass = me->owner;
+ oid = me->def->original_id;
+ visi = METHOD_ENTRY_VISI(me);
+
+ if (oid != idMethodMissing) {
+ /* receiver specified form for private method */
+ if (UNLIKELY(visi != METHOD_VISI_PUBLIC)) {
+ if (visi == METHOD_VISI_PRIVATE && scope == CALL_PUBLIC) {
+ return MISSING_PRIVATE;
+ }
+
+ /* self must be kind of a specified form for protected method */
+ if (visi == METHOD_VISI_PROTECTED && scope == CALL_PUBLIC) {
+ VALUE defined_class = klass;
+
+ if (RB_TYPE_P(defined_class, T_ICLASS)) {
+ defined_class = RBASIC(defined_class)->klass;
+ }
+
+ if (self == Qundef || !rb_obj_is_kind_of(self, defined_class)) {
+ return MISSING_PROTECTED;
+ }
+ }
+ }
+ }
+
+ return MISSING_NONE;
+}
+
+
+/*!
+ * \internal
+ * calls the specified method.
+ *
+ * This function is called by functions in rb_call* family.
+ * \param recv receiver
+ * \param mid an ID that represents the name of the method
+ * \param argc the number of method arguments
+ * \param argv a pointer to an array of method arguments
+ * \param scope
+ */
+static inline VALUE
+rb_call(VALUE recv, ID mid, int argc, const VALUE *argv, call_type scope)
+{
+ rb_execution_context_t *ec = GET_EC();
+ return rb_call0(ec, recv, mid, argc, argv, scope, ec->cfp->self);
+}
+
+NORETURN(static void raise_method_missing(rb_execution_context_t *ec, int argc, const VALUE *argv,
+ VALUE obj, enum method_missing_reason call_status));
+
+/*
+ * call-seq:
+ * obj.method_missing(symbol [, *args] ) -> result
+ *
+ * Invoked by Ruby when <i>obj</i> is sent a message it cannot handle.
+ * <i>symbol</i> is the symbol for the method called, and <i>args</i>
+ * are any arguments that were passed to it. By default, the interpreter
+ * raises an error when this method is called. However, it is possible
+ * to override the method to provide more dynamic behavior.
+ * If it is decided that a particular method should not be handled, then
+ * <i>super</i> should be called, so that ancestors can pick up the
+ * missing method.
+ * The example below creates
+ * a class <code>Roman</code>, which responds to methods with names
+ * consisting of roman numerals, returning the corresponding integer
+ * values.
+ *
+ * class Roman
+ * def roman_to_int(str)
+ * # ...
+ * end
+ * def method_missing(methId)
+ * str = methId.id2name
+ * roman_to_int(str)
+ * end
+ * end
+ *
+ * r = Roman.new
+ * r.iv #=> 4
+ * r.xxiii #=> 23
+ * r.mm #=> 2000
+ */
+
+static VALUE
+rb_method_missing(int argc, const VALUE *argv, VALUE obj)
+{
+ rb_execution_context_t *ec = GET_EC();
+ raise_method_missing(ec, argc, argv, obj, ec->method_missing_reason);
+ UNREACHABLE;
+}
+
+static VALUE
+make_no_method_exception(VALUE exc, VALUE format, VALUE obj,
+ int argc, const VALUE *argv, int priv)
+{
+ int n = 0;
+ enum {
+ arg_mesg,
+ arg_name,
+ arg_args,
+ arg_priv,
+ args_size
+ };
+ VALUE args[args_size];
+
+ if (!format) {
+ format = rb_fstring_cstr("undefined method `%s' for %s%s%s");
+ }
+ args[n++] = rb_name_err_mesg_new(format, obj, argv[0]);
+ args[n++] = argv[0];
+ if (exc == rb_eNoMethodError) {
+ args[n++] = rb_ary_new4(argc - 1, argv + 1);
+ args[n++] = priv ? Qtrue : Qfalse;
+ }
+ return rb_class_new_instance(n, args, exc);
+}
+
+static void
+raise_method_missing(rb_execution_context_t *ec, int argc, const VALUE *argv, VALUE obj,
+ enum method_missing_reason last_call_status)
+{
+ VALUE exc = rb_eNoMethodError;
+ VALUE format = 0;
+
+ if (UNLIKELY(argc == 0)) {
+ rb_raise(rb_eArgError, "no method name given");
+ }
+ else if (UNLIKELY(!SYMBOL_P(argv[0]))) {
+ const VALUE e = rb_eArgError; /* TODO: TypeError? */
+ rb_raise(e, "method name must be a Symbol but %"PRIsVALUE" is given",
+ rb_obj_class(argv[0]));
+ }
+
+ stack_check(ec);
+
+ if (last_call_status & MISSING_PRIVATE) {
+ format = rb_fstring_cstr("private method `%s' called for %s%s%s");
+ }
+ else if (last_call_status & MISSING_PROTECTED) {
+ format = rb_fstring_cstr("protected method `%s' called for %s%s%s");
+ }
+ else if (last_call_status & MISSING_VCALL) {
+ format = rb_fstring_cstr("undefined local variable or method `%s' for %s%s%s");
+ exc = rb_eNameError;
+ }
+ else if (last_call_status & MISSING_SUPER) {
+ format = rb_fstring_cstr("super: no superclass method `%s' for %s%s%s");
+ }
+
+ {
+ exc = make_no_method_exception(exc, format, obj, argc, argv,
+ last_call_status & (MISSING_FCALL|MISSING_VCALL));
+ if (!(last_call_status & MISSING_MISSING)) {
+ rb_vm_pop_cfunc_frame();
+ }
+ rb_exc_raise(exc);
+ }
+}
+
+static void
+vm_raise_method_missing(rb_execution_context_t *ec, int argc, const VALUE *argv,
+ VALUE obj, int call_status)
+{
+ vm_passed_block_handler_set(ec, VM_BLOCK_HANDLER_NONE);
+ raise_method_missing(ec, argc, argv, obj, call_status | MISSING_MISSING);
+}
+
+static inline VALUE
+method_missing(VALUE obj, ID id, int argc, const VALUE *argv, enum method_missing_reason call_status)
+{
+ VALUE *nargv, result, work, klass;
+ rb_execution_context_t *ec = GET_EC();
+ VALUE block_handler = vm_passed_block_handler(ec);
+ const rb_callable_method_entry_t *me;
+
+ ec->method_missing_reason = call_status;
+
+ if (id == idMethodMissing) {
+ missing:
+ raise_method_missing(ec, argc, argv, obj, call_status | MISSING_MISSING);
+ }
+
+ nargv = ALLOCV_N(VALUE, work, argc + 1);
+ nargv[0] = ID2SYM(id);
+ MEMCPY(nargv + 1, argv, VALUE, argc);
+ ++argc;
+ argv = nargv;
+
+ klass = CLASS_OF(obj);
+ if (!klass) goto missing;
+ me = rb_callable_method_entry(klass, idMethodMissing);
+ if (!me || METHOD_ENTRY_BASIC(me)) goto missing;
+ vm_passed_block_handler_set(ec, block_handler);
+ result = vm_call0(ec, obj, idMethodMissing, argc, argv, me);
+ if (work) ALLOCV_END(work);
+ return result;
+}
+
+/*!
+ * Calls a method
+ * \param recv receiver of the method
+ * \param mid an ID that represents the name of the method
+ * \param args an Array object which contains method arguments
+ *
+ * \pre \a args must refer an Array object.
+ */
+VALUE
+rb_apply(VALUE recv, ID mid, VALUE args)
+{
+ int argc;
+ VALUE *argv, ret;
+
+ argc = RARRAY_LENINT(args);
+ if (argc >= 0x100) {
+ args = rb_ary_subseq(args, 0, argc);
+ RBASIC_CLEAR_CLASS(args);
+ OBJ_FREEZE(args);
+ ret = rb_call(recv, mid, argc, RARRAY_CONST_PTR(args), CALL_FCALL);
+ RB_GC_GUARD(args);
+ return ret;
+ }
+ argv = ALLOCA_N(VALUE, argc);
+ MEMCPY(argv, RARRAY_CONST_PTR(args), VALUE, argc);
+ return rb_call(recv, mid, argc, argv, CALL_FCALL);
+}
+
+#undef rb_funcall
+/*!
+ * Calls a method
+ * \param recv receiver of the method
+ * \param mid an ID that represents the name of the method
+ * \param n the number of arguments
+ * \param ... arbitrary number of method arguments
+ *
+ * \pre each of arguments after \a n must be a VALUE.
+ */
+VALUE
+rb_funcall(VALUE recv, ID mid, int n, ...)
+{
+ VALUE *argv;
+ va_list ar;
+
+ if (n > 0) {
+ long i;
+
+ va_init_list(ar, n);
+
+ argv = ALLOCA_N(VALUE, n);
+
+ for (i = 0; i < n; i++) {
+ argv[i] = va_arg(ar, VALUE);
+ }
+ va_end(ar);
+ }
+ else {
+ argv = 0;
+ }
+ return rb_call(recv, mid, n, argv, CALL_FCALL);
+}
+
+/*!
+ * Calls a method
+ * \param recv receiver of the method
+ * \param mid an ID that represents the name of the method
+ * \param argc the number of arguments
+ * \param argv pointer to an array of method arguments
+ */
+VALUE
+rb_funcallv(VALUE recv, ID mid, int argc, const VALUE *argv)
+{
+ return rb_call(recv, mid, argc, argv, CALL_FCALL);
+}
+
+/*!
+ * Calls a method.
+ *
+ * Same as rb_funcallv but this function can call only public methods.
+ * \param recv receiver of the method
+ * \param mid an ID that represents the name of the method
+ * \param argc the number of arguments
+ * \param argv pointer to an array of method arguments
+ */
+VALUE
+rb_funcallv_public(VALUE recv, ID mid, int argc, const VALUE *argv)
+{
+ return rb_call(recv, mid, argc, argv, CALL_PUBLIC);
+}
+
+VALUE
+rb_funcall_passing_block(VALUE recv, ID mid, int argc, const VALUE *argv)
+{
+ PASS_PASSED_BLOCK_HANDLER();
+ return rb_call(recv, mid, argc, argv, CALL_PUBLIC);
+}
+
+VALUE
+rb_funcall_with_block(VALUE recv, ID mid, int argc, const VALUE *argv, VALUE passed_procval)
+{
+ if (!NIL_P(passed_procval)) {
+ vm_passed_block_handler_set(GET_EC(), passed_procval);
+ }
+
+ return rb_call(recv, mid, argc, argv, CALL_PUBLIC);
+}
+
+static VALUE *
+current_vm_stack_arg(const rb_execution_context_t *ec, const VALUE *argv)
+{
+ rb_control_frame_t *prev_cfp = RUBY_VM_PREVIOUS_CONTROL_FRAME(ec->cfp);
+ if (RUBY_VM_CONTROL_FRAME_STACK_OVERFLOW_P(ec, prev_cfp)) return NULL;
+ if (prev_cfp->sp + 1 != argv) return NULL;
+ return prev_cfp->sp + 1;
+}
+
+static VALUE
+send_internal(int argc, const VALUE *argv, VALUE recv, call_type scope)
+{
+ ID id;
+ VALUE vid;
+ VALUE self;
+ VALUE ret, vargv = 0;
+ rb_execution_context_t *ec = GET_EC();
+
+ if (scope == CALL_PUBLIC) {
+ self = Qundef;
+ }
+ else {
+ self = RUBY_VM_PREVIOUS_CONTROL_FRAME(ec->cfp)->self;
+ }
+
+ if (argc == 0) {
+ rb_raise(rb_eArgError, "no method name given");
+ }
+
+ vid = *argv;
+
+ id = rb_check_id(&vid);
+ if (!id) {
+ if (rb_method_basic_definition_p(CLASS_OF(recv), idMethodMissing)) {
+ VALUE exc = make_no_method_exception(rb_eNoMethodError, 0,
+ recv, argc, argv,
+ scope != CALL_PUBLIC);
+ rb_exc_raise(exc);
+ }
+ if (!SYMBOL_P(*argv)) {
+ VALUE *tmp_argv = current_vm_stack_arg(ec, argv);
+ vid = rb_str_intern(vid);
+ if (tmp_argv) {
+ tmp_argv[0] = vid;
+ }
+ else if (argc > 1) {
+ tmp_argv = ALLOCV_N(VALUE, vargv, argc);
+ tmp_argv[0] = vid;
+ MEMCPY(tmp_argv+1, argv+1, VALUE, argc-1);
+ argv = tmp_argv;
+ }
+ else {
+ argv = &vid;
+ }
+ }
+ id = idMethodMissing;
+ ec->method_missing_reason = MISSING_NOENTRY;
+ }
+ else {
+ argv++; argc--;
+ }
+ PASS_PASSED_BLOCK_HANDLER_EC(ec);
+ ret = rb_call0(ec, recv, id, argc, argv, scope, self);
+ ALLOCV_END(vargv);
+ return ret;
+}
+
+/*
+ * call-seq:
+ * foo.send(symbol [, args...]) -> obj
+ * foo.__send__(symbol [, args...]) -> obj
+ * foo.send(string [, args...]) -> obj
+ * foo.__send__(string [, args...]) -> obj
+ *
+ * Invokes the method identified by _symbol_, passing it any
+ * arguments specified. You can use <code>__send__</code> if the name
+ * +send+ clashes with an existing method in _obj_.
+ * When the method is identified by a string, the string is converted
+ * to a symbol.
+ *
+ * class Klass
+ * def hello(*args)
+ * "Hello " + args.join(' ')
+ * end
+ * end
+ * k = Klass.new
+ * k.send :hello, "gentle", "readers" #=> "Hello gentle readers"
+ */
+
+VALUE
+rb_f_send(int argc, VALUE *argv, VALUE recv)
+{
+ return send_internal(argc, argv, recv, CALL_FCALL);
+}
+
+/*
+ * call-seq:
+ * obj.public_send(symbol [, args...]) -> obj
+ * obj.public_send(string [, args...]) -> obj
+ *
+ * Invokes the method identified by _symbol_, passing it any
+ * arguments specified. Unlike send, public_send calls public
+ * methods only.
+ * When the method is identified by a string, the string is converted
+ * to a symbol.
+ *
+ * 1.public_send(:puts, "hello") # causes NoMethodError
+ */
+
+static VALUE
+rb_f_public_send(int argc, VALUE *argv, VALUE recv)
+{
+ return send_internal(argc, argv, recv, CALL_PUBLIC);
+}
+
+/* yield */
+
+static inline VALUE
+rb_yield_0(int argc, const VALUE * argv)
+{
+ return vm_yield(GET_EC(), argc, argv);
+}
+
+VALUE
+rb_yield_1(VALUE val)
+{
+ return rb_yield_0(1, &val);
+}
+
+VALUE
+rb_yield(VALUE val)
+{
+ if (val == Qundef) {
+ return rb_yield_0(0, 0);
+ }
+ else {
+ return rb_yield_1(val);
+ }
+}
+
+#undef rb_yield_values
+VALUE
+rb_yield_values(int n, ...)
+{
+ if (n == 0) {
+ return rb_yield_0(0, 0);
+ }
+ else {
+ int i;
+ VALUE *argv;
+ va_list args;
+ argv = ALLOCA_N(VALUE, n);
+
+ va_init_list(args, n);
+ for (i=0; i<n; i++) {
+ argv[i] = va_arg(args, VALUE);
+ }
+ va_end(args);
+
+ return rb_yield_0(n, argv);
+ }
+}
+
+VALUE
+rb_yield_values2(int argc, const VALUE *argv)
+{
+ return rb_yield_0(argc, argv);
+}
+
+VALUE
+rb_yield_splat(VALUE values)
+{
+ VALUE tmp = rb_check_array_type(values);
+ VALUE v;
+ if (NIL_P(tmp)) {
+ rb_raise(rb_eArgError, "not an array");
+ }
+ v = rb_yield_0(RARRAY_LENINT(tmp), RARRAY_CONST_PTR(tmp));
+ RB_GC_GUARD(tmp);
+ return v;
+}
+
+VALUE
+rb_yield_force_blockarg(VALUE values)
+{
+ return vm_yield_force_blockarg(GET_EC(), values);
+}
+
+VALUE
+rb_yield_block(VALUE val, VALUE arg, int argc, const VALUE *argv, VALUE blockarg)
+{
+ return vm_yield_with_block(GET_EC(), argc, argv,
+ NIL_P(blockarg) ? VM_BLOCK_HANDLER_NONE : blockarg);
+}
+
+static VALUE
+loop_i(void)
+{
+ for (;;) {
+ rb_yield_0(0, 0);
+ }
+ return Qnil;
+}
+
+static VALUE
+loop_stop(VALUE dummy, VALUE exc)
+{
+ return rb_attr_get(exc, id_result);
+}
+
+static VALUE
+rb_f_loop_size(VALUE self, VALUE args, VALUE eobj)
+{
+ return DBL2NUM(INFINITY);
+}
+
+/*
+ * call-seq:
+ * loop { block }
+ * loop -> an_enumerator
+ *
+ * Repeatedly executes the block.
+ *
+ * If no block is given, an enumerator is returned instead.
+ *
+ * loop do
+ * print "Input: "
+ * line = gets
+ * break if !line or line =~ /^qQ/
+ * # ...
+ * end
+ *
+ * StopIteration raised in the block breaks the loop. In this case,
+ * loop returns the "result" value stored in the exception.
+ *
+ * enum = Enumerator.new { |y|
+ * y << "one"
+ * y << "two"
+ * :ok
+ * }
+ *
+ * result = loop {
+ * puts enum.next
+ * } #=> :ok
+ */
+
+static VALUE
+rb_f_loop(VALUE self)
+{
+ RETURN_SIZED_ENUMERATOR(self, 0, 0, rb_f_loop_size);
+ return rb_rescue2(loop_i, (VALUE)0, loop_stop, (VALUE)0, rb_eStopIteration, (VALUE)0);
+}
+
+#if VMDEBUG
+static const char *
+vm_frametype_name(const rb_control_frame_t *cfp);
+#endif
+
+static VALUE
+rb_iterate0(VALUE (* it_proc) (VALUE), VALUE data1,
+ const struct vm_ifunc *const ifunc,
+ rb_execution_context_t *ec)
+{
+ enum ruby_tag_type state;
+ volatile VALUE retval = Qnil;
+ rb_control_frame_t *const cfp = ec->cfp;
+
+ EC_PUSH_TAG(ec);
+ state = EC_EXEC_TAG();
+ if (state == 0) {
+ iter_retry:
+ {
+ VALUE block_handler;
+
+ if (ifunc) {
+ struct rb_captured_block *captured = VM_CFP_TO_CAPTURED_BLOCK(cfp);
+ captured->code.ifunc = ifunc;
+ block_handler = VM_BH_FROM_IFUNC_BLOCK(captured);
+ }
+ else {
+ block_handler = VM_CF_BLOCK_HANDLER(cfp);
+ }
+ vm_passed_block_handler_set(ec, block_handler);
+ }
+ retval = (*it_proc) (data1);
+ }
+ else if (state == TAG_BREAK || state == TAG_RETRY) {
+ const struct vm_throw_data *const err = (struct vm_throw_data *)ec->errinfo;
+ const rb_control_frame_t *const escape_cfp = THROW_DATA_CATCH_FRAME(err);
+
+ if (cfp == escape_cfp) {
+ rb_vm_rewind_cfp(ec, cfp);
+
+ state = 0;
+ ec->tag->state = TAG_NONE;
+ ec->errinfo = Qnil;
+
+ if (state == TAG_RETRY) goto iter_retry;
+ retval = THROW_DATA_VAL(err);
+ }
+ else if (0) {
+ SDR(); fprintf(stderr, "%p, %p\n", cfp, escape_cfp);
+ }
+ }
+ EC_POP_TAG();
+
+ if (state) {
+ EC_JUMP_TAG(ec, state);
+ }
+ return retval;
+}
+
+VALUE
+rb_iterate(VALUE (* it_proc)(VALUE), VALUE data1,
+ VALUE (* bl_proc)(ANYARGS), VALUE data2)
+{
+ return rb_iterate0(it_proc, data1,
+ bl_proc ? rb_vm_ifunc_proc_new(bl_proc, (void *)data2) : 0,
+ GET_EC());
+}
+
+struct iter_method_arg {
+ VALUE obj;
+ ID mid;
+ int argc;
+ const VALUE *argv;
+};
+
+static VALUE
+iterate_method(VALUE obj)
+{
+ const struct iter_method_arg * arg =
+ (struct iter_method_arg *) obj;
+
+ return rb_call(arg->obj, arg->mid, arg->argc, arg->argv, CALL_FCALL);
+}
+
+VALUE
+rb_block_call(VALUE obj, ID mid, int argc, const VALUE * argv,
+ VALUE (*bl_proc) (ANYARGS), VALUE data2)
+{
+ struct iter_method_arg arg;
+
+ arg.obj = obj;
+ arg.mid = mid;
+ arg.argc = argc;
+ arg.argv = argv;
+ return rb_iterate(iterate_method, (VALUE)&arg, bl_proc, data2);
+}
+
+VALUE
+rb_lambda_call(VALUE obj, ID mid, int argc, const VALUE *argv,
+ rb_block_call_func_t bl_proc, int min_argc, int max_argc,
+ VALUE data2)
+{
+ struct iter_method_arg arg;
+ struct vm_ifunc *block;
+
+ if (!bl_proc) rb_raise(rb_eArgError, "NULL lambda function");
+ arg.obj = obj;
+ arg.mid = mid;
+ arg.argc = argc;
+ arg.argv = argv;
+ block = rb_vm_ifunc_new(bl_proc, (void *)data2, min_argc, max_argc);
+ return rb_iterate0(iterate_method, (VALUE)&arg, block, GET_EC());
+}
+
+static VALUE
+iterate_check_method(VALUE obj)
+{
+ const struct iter_method_arg * arg =
+ (struct iter_method_arg *) obj;
+
+ return rb_check_funcall(arg->obj, arg->mid, arg->argc, arg->argv);
+}
+
+VALUE
+rb_check_block_call(VALUE obj, ID mid, int argc, const VALUE *argv,
+ VALUE (*bl_proc) (ANYARGS), VALUE data2)
+{
+ struct iter_method_arg arg;
+
+ arg.obj = obj;
+ arg.mid = mid;
+ arg.argc = argc;
+ arg.argv = argv;
+ return rb_iterate(iterate_check_method, (VALUE)&arg, bl_proc, data2);
+}
+
+VALUE
+rb_each(VALUE obj)
+{
+ return rb_call(obj, idEach, 0, 0, CALL_FCALL);
+}
+
+static VALUE
+adjust_backtrace_in_eval(const rb_execution_context_t *ec, VALUE errinfo)
+{
+ VALUE errat = rb_get_backtrace(errinfo);
+ VALUE mesg = rb_attr_get(errinfo, id_mesg);
+ if (RB_TYPE_P(errat, T_ARRAY)) {
+ VALUE bt2 = rb_ec_backtrace_str_ary(ec, 0, 0);
+ if (RARRAY_LEN(bt2) > 0) {
+ if (RB_TYPE_P(mesg, T_STRING) && !RSTRING_LEN(mesg)) {
+ rb_ivar_set(errinfo, id_mesg, RARRAY_AREF(errat, 0));
+ }
+ RARRAY_ASET(errat, 0, RARRAY_AREF(bt2, 0));
+ }
+ }
+ return errinfo;
+}
+
+static VALUE
+eval_string_with_cref(VALUE self, VALUE src, VALUE scope, rb_cref_t *const cref_arg,
+ VALUE filename, int lineno)
+{
+ int state;
+ VALUE result = Qundef;
+ rb_execution_context_t *ec = GET_EC();
+ struct rb_block block;
+ const struct rb_block *base_block;
+ volatile VALUE file;
+ volatile int line;
+
+ file = filename ? filename : rb_source_location(&lineno);
+ line = lineno;
+
+ {
+ rb_cref_t *cref = cref_arg;
+ rb_binding_t *bind = 0;
+ const rb_iseq_t *iseq;
+ VALUE realpath = Qnil;
+ VALUE fname;
+
+ if (file != Qundef) {
+ realpath = file;
+ }
+
+ if (!NIL_P(scope)) {
+ bind = Check_TypedStruct(scope, &ruby_binding_data_type);
+
+ if (NIL_P(realpath)) {
+ file = pathobj_path(bind->pathobj);
+ realpath = pathobj_realpath(bind->pathobj);
+ line = bind->first_lineno;
+ }
+ base_block = &bind->block;
+ }
+ else {
+ rb_control_frame_t *cfp = rb_vm_get_ruby_level_next_cfp(ec, ec->cfp);
+
+ if (cfp != 0) {
+ block.as.captured = *VM_CFP_TO_CAPTURED_BLOCK(cfp);
+ block.as.captured.self = self;
+ block.as.captured.code.iseq = cfp->iseq;
+ block.type = block_type_iseq;
+ base_block = &block;
+ }
+ else {
+ rb_raise(rb_eRuntimeError, "Can't eval on top of Fiber or Thread");
+ }
+ }
+
+ if ((fname = file) == Qundef) {
+ fname = rb_usascii_str_new_cstr("(eval)");
+ }
+
+ /* make eval iseq */
+ iseq = rb_iseq_compile_with_option(src, fname, realpath, INT2FIX(line), base_block, Qnil);
+
+ if (!iseq) {
+ rb_exc_raise(adjust_backtrace_in_eval(ec, ec->errinfo));
+ }
+
+ /* TODO: what the code checking? */
+ if (!cref && base_block->as.captured.code.val) {
+ if (NIL_P(scope)) {
+ rb_cref_t *orig_cref = rb_vm_get_cref(vm_block_ep(base_block));
+ cref = vm_cref_dup(orig_cref);
+ }
+ else {
+ cref = NULL; /* use stacked CREF */
+ }
+ }
+ vm_set_eval_stack(ec, iseq, cref, base_block);
+
+ if (0) { /* for debug */
+ VALUE disasm = rb_iseq_disasm(iseq);
+ printf("%s\n", StringValuePtr(disasm));
+ }
+
+ /* save new env */
+ if (bind && iseq->body->local_table_size > 0) {
+ vm_bind_update_env(scope, bind, vm_make_env_object(ec, ec->cfp));
+ }
+ }
+
+ if (file != Qundef) {
+ /* kick */
+ return vm_exec(ec);
+ }
+
+ EC_PUSH_TAG(ec);
+ if ((state = EC_EXEC_TAG()) == TAG_NONE) {
+ result = vm_exec(ec);
+ }
+ EC_POP_TAG();
+
+ if (state) {
+ if (state == TAG_RAISE) {
+ adjust_backtrace_in_eval(ec, ec->errinfo);
+ }
+ EC_JUMP_TAG(ec, state);
+ }
+ return result;
+}
+
+static VALUE
+eval_string(VALUE self, VALUE src, VALUE scope, VALUE file, int line)
+{
+ return eval_string_with_cref(self, src, scope, 0, file, line);
+}
+
+/*
+ * call-seq:
+ * eval(string [, binding [, filename [,lineno]]]) -> obj
+ *
+ * Evaluates the Ruby expression(s) in <em>string</em>. If
+ * <em>binding</em> is given, which must be a <code>Binding</code>
+ * object, the evaluation is performed in its context. If the
+ * optional <em>filename</em> and <em>lineno</em> parameters are
+ * present, they will be used when reporting syntax errors.
+ *
+ * def get_binding(str)
+ * return binding
+ * end
+ * str = "hello"
+ * eval "str + ' Fred'" #=> "hello Fred"
+ * eval "str + ' Fred'", get_binding("bye") #=> "bye Fred"
+ */
+
+VALUE
+rb_f_eval(int argc, const VALUE *argv, VALUE self)
+{
+ VALUE src, scope, vfile, vline;
+ VALUE file = Qundef;
+ int line = 1;
+
+ rb_scan_args(argc, argv, "13", &src, &scope, &vfile, &vline);
+ SafeStringValue(src);
+ if (argc >= 3) {
+ StringValue(vfile);
+ }
+ if (argc >= 4) {
+ line = NUM2INT(vline);
+ }
+
+ if (!NIL_P(vfile))
+ file = vfile;
+ return eval_string(self, src, scope, file, line);
+}
+
+/** @note This function name is not stable. */
+VALUE
+ruby_eval_string_from_file(const char *str, const char *filename)
+{
+ VALUE file = filename ? rb_str_new_cstr(filename) : 0;
+ return eval_string(rb_vm_top_self(), rb_str_new2(str), Qnil, file, 1);
+}
+
+struct eval_string_from_file_arg {
+ VALUE str;
+ VALUE filename;
+};
+
+static VALUE
+eval_string_from_file_helper(VALUE data)
+{
+ const struct eval_string_from_file_arg *const arg = (struct eval_string_from_file_arg*)data;
+ return eval_string(rb_vm_top_self(), arg->str, Qnil, arg->filename, 1);
+}
+
+VALUE
+ruby_eval_string_from_file_protect(const char *str, const char *filename, int *state)
+{
+ struct eval_string_from_file_arg arg;
+ arg.str = rb_str_new_cstr(str);
+ arg.filename = filename ? rb_str_new_cstr(filename) : 0;
+ return rb_protect(eval_string_from_file_helper, (VALUE)&arg, state);
+}
+
+/**
+ * Evaluates the given string in an isolated binding.
+ *
+ * Here "isolated" means the binding does not inherit any other binding. This
+ * behaves same as the binding for required libraries.
+ *
+ * __FILE__ will be "(eval)", and __LINE__ starts from 1 in the evaluation.
+ *
+ * @param str Ruby code to evaluate.
+ * @return The evaluated result.
+ * @throw Exception Raises an exception on error.
+ */
+VALUE
+rb_eval_string(const char *str)
+{
+ return ruby_eval_string_from_file(str, "eval");
+}
+
+/**
+ * Evaluates the given string in an isolated binding.
+ *
+ * __FILE__ will be "(eval)", and __LINE__ starts from 1 in the evaluation.
+ *
+ * @sa rb_eval_string
+ * @param str Ruby code to evaluate.
+ * @param state Being set to zero if succeeded. Nonzero if an error occurred.
+ * @return The evaluated result if succeeded, an undefined value if otherwise.
+ */
+VALUE
+rb_eval_string_protect(const char *str, int *pstate)
+{
+ return rb_protect((VALUE (*)(VALUE))rb_eval_string, (VALUE)str, pstate);
+}
+
+/**
+ * Evaluates the given string under a module binding in an isolated binding.
+ * This is same as the binding for loaded libraries on "load('foo', true)".
+ *
+ * __FILE__ will be "(eval)", and __LINE__ starts from 1 in the evaluation.
+ *
+ * @sa rb_eval_string
+ * @param str Ruby code to evaluate.
+ * @param state Being set to zero if succeeded. Nonzero if an error occurred.
+ * @return The evaluated result if succeeded, an undefined value if otherwise.
+ */
+VALUE
+rb_eval_string_wrap(const char *str, int *pstate)
+{
+ int state;
+ rb_thread_t *th = GET_THREAD();
+ VALUE self = th->top_self;
+ VALUE wrapper = th->top_wrapper;
+ VALUE val;
+
+ th->top_wrapper = rb_module_new();
+ th->top_self = rb_obj_clone(rb_vm_top_self());
+ rb_extend_object(th->top_self, th->top_wrapper);
+
+ val = rb_eval_string_protect(str, &state);
+
+ th->top_self = self;
+ th->top_wrapper = wrapper;
+
+ if (pstate) {
+ *pstate = state;
+ }
+ else if (state != TAG_NONE) {
+ EC_JUMP_TAG(th->ec, state);
+ }
+ return val;
+}
+
+VALUE
+rb_eval_cmd(VALUE cmd, VALUE arg, int level)
+{
+ enum ruby_tag_type state;
+ volatile VALUE val = Qnil; /* OK */
+ const int VAR_NOCLOBBERED(safe) = rb_safe_level();
+ rb_execution_context_t * volatile ec = GET_EC();
+
+ if (OBJ_TAINTED(cmd)) {
+ level = RUBY_SAFE_LEVEL_MAX;
+ }
+
+ EC_PUSH_TAG(ec);
+ rb_set_safe_level_force(level);
+ if ((state = EC_EXEC_TAG()) == TAG_NONE) {
+ if (!RB_TYPE_P(cmd, T_STRING)) {
+ val = rb_funcallv(cmd, idCall, RARRAY_LENINT(arg),
+ RARRAY_CONST_PTR(arg));
+ }
+ else {
+ val = eval_string(rb_vm_top_self(), cmd, Qnil, 0, 0);
+ }
+ }
+ EC_POP_TAG();
+
+ rb_set_safe_level_force(safe);
+ if (state) EC_JUMP_TAG(ec, state);
+ return val;
+}
+
+/* block eval under the class/module context */
+
+static VALUE
+yield_under(VALUE under, VALUE self, int argc, const VALUE *argv)
+{
+ rb_execution_context_t *ec = GET_EC();
+ rb_control_frame_t *cfp = ec->cfp;
+ VALUE block_handler = VM_CF_BLOCK_HANDLER(cfp);
+ VALUE new_block_handler = 0;
+ const struct rb_captured_block *captured = NULL;
+ struct rb_captured_block new_captured;
+ const VALUE *ep = NULL;
+ rb_cref_t *cref;
+ int is_lambda = FALSE;
+
+ if (block_handler != VM_BLOCK_HANDLER_NONE) {
+ again:
+ switch (vm_block_handler_type(block_handler)) {
+ case block_handler_type_iseq:
+ captured = VM_BH_TO_CAPT_BLOCK(block_handler);
+ new_captured = *captured;
+ new_block_handler = VM_BH_FROM_ISEQ_BLOCK(&new_captured);
+ break;
+ case block_handler_type_ifunc:
+ captured = VM_BH_TO_CAPT_BLOCK(block_handler);
+ new_captured = *captured;
+ new_block_handler = VM_BH_FROM_IFUNC_BLOCK(&new_captured);
+ break;
+ case block_handler_type_proc:
+ is_lambda = rb_proc_lambda_p(block_handler) != Qfalse;
+ block_handler = vm_proc_to_block_handler(VM_BH_TO_PROC(block_handler));
+ goto again;
+ case block_handler_type_symbol:
+ return rb_sym_proc_call(SYM2ID(VM_BH_TO_SYMBOL(block_handler)),
+ argc, argv, VM_BLOCK_HANDLER_NONE);
+ }
+
+ new_captured.self = self;
+ ep = captured->ep;
+
+ VM_FORCE_WRITE_SPECIAL_CONST(&VM_CF_LEP(ec->cfp)[VM_ENV_DATA_INDEX_SPECVAL], new_block_handler);
+ }
+
+ cref = vm_cref_push(ec, under, ep, TRUE);
+ return vm_yield_with_cref(ec, argc, argv, cref, is_lambda);
+}
+
+VALUE
+rb_yield_refine_block(VALUE refinement, VALUE refinements)
+{
+ rb_execution_context_t *ec = GET_EC();
+ VALUE block_handler = VM_CF_BLOCK_HANDLER(ec->cfp);
+
+ if (vm_block_handler_type(block_handler) != block_handler_type_iseq) {
+ rb_bug("rb_yield_refine_block: an iseq block is required");
+ }
+ else {
+ const struct rb_captured_block *captured = VM_BH_TO_ISEQ_BLOCK(block_handler);
+ struct rb_captured_block new_captured = *captured;
+ VALUE new_block_handler = VM_BH_FROM_ISEQ_BLOCK(&new_captured);
+ const VALUE *ep = captured->ep;
+ rb_cref_t *cref = vm_cref_push(ec, refinement, ep, TRUE);
+ CREF_REFINEMENTS_SET(cref, refinements);
+ VM_FORCE_WRITE_SPECIAL_CONST(&VM_CF_LEP(ec->cfp)[VM_ENV_DATA_INDEX_SPECVAL], new_block_handler);
+ new_captured.self = refinement;
+ return vm_yield_with_cref(ec, 0, NULL, cref, FALSE);
+ }
+}
+
+/* string eval under the class/module context */
+static VALUE
+eval_under(VALUE under, VALUE self, VALUE src, VALUE file, int line)
+{
+ rb_cref_t *cref = vm_cref_push(GET_EC(), under, NULL, SPECIAL_CONST_P(self) && !NIL_P(under));
+ SafeStringValue(src);
+ return eval_string_with_cref(self, src, Qnil, cref, file, line);
+}
+
+static VALUE
+specific_eval(int argc, const VALUE *argv, VALUE klass, VALUE self)
+{
+ if (rb_block_given_p()) {
+ rb_check_arity(argc, 0, 0);
+ return yield_under(klass, self, 1, &self);
+ }
+ else {
+ VALUE file = Qundef;
+ int line = 1;
+ VALUE code;
+
+ rb_check_arity(argc, 1, 3);
+ code = argv[0];
+ SafeStringValue(code);
+ if (argc > 2)
+ line = NUM2INT(argv[2]);
+ if (argc > 1) {
+ file = argv[1];
+ if (!NIL_P(file)) StringValue(file);
+ }
+ return eval_under(klass, self, code, file, line);
+ }
+}
+
+static VALUE
+singleton_class_for_eval(VALUE self)
+{
+ if (SPECIAL_CONST_P(self)) {
+ return rb_special_singleton_class(self);
+ }
+ switch (BUILTIN_TYPE(self)) {
+ case T_FLOAT: case T_BIGNUM: case T_SYMBOL:
+ return Qnil;
+ case T_STRING:
+ if (FL_TEST_RAW(self, RSTRING_FSTR)) return Qnil;
+ default:
+ return rb_singleton_class(self);
+ }
+}
+
+/*
+ * call-seq:
+ * obj.instance_eval(string [, filename [, lineno]] ) -> obj
+ * obj.instance_eval {|obj| block } -> obj
+ *
+ * Evaluates a string containing Ruby source code, or the given block,
+ * within the context of the receiver (_obj_). In order to set the
+ * context, the variable +self+ is set to _obj_ while
+ * the code is executing, giving the code access to _obj_'s
+ * instance variables and private methods.
+ *
+ * When <code>instance_eval</code> is given a block, _obj_ is also
+ * passed in as the block's only argument.
+ *
+ * When <code>instance_eval</code> is given a +String+, the optional
+ * second and third parameters supply a filename and starting line number
+ * that are used when reporting compilation errors.
+ *
+ * class KlassWithSecret
+ * def initialize
+ * @secret = 99
+ * end
+ * private
+ * def the_secret
+ * "Ssssh! The secret is #{@secret}."
+ * end
+ * end
+ * k = KlassWithSecret.new
+ * k.instance_eval { @secret } #=> 99
+ * k.instance_eval { the_secret } #=> "Ssssh! The secret is 99."
+ * k.instance_eval {|obj| obj == self } #=> true
+ */
+
+VALUE
+rb_obj_instance_eval(int argc, const VALUE *argv, VALUE self)
+{
+ VALUE klass = singleton_class_for_eval(self);
+ return specific_eval(argc, argv, klass, self);
+}
+
+/*
+ * call-seq:
+ * obj.instance_exec(arg...) {|var...| block } -> obj
+ *
+ * Executes the given block within the context of the receiver
+ * (_obj_). In order to set the context, the variable +self+ is set
+ * to _obj_ while the code is executing, giving the code access to
+ * _obj_'s instance variables. Arguments are passed as block parameters.
+ *
+ * class KlassWithSecret
+ * def initialize
+ * @secret = 99
+ * end
+ * end
+ * k = KlassWithSecret.new
+ * k.instance_exec(5) {|x| @secret+x } #=> 104
+ */
+
+VALUE
+rb_obj_instance_exec(int argc, const VALUE *argv, VALUE self)
+{
+ VALUE klass = singleton_class_for_eval(self);
+ return yield_under(klass, self, argc, argv);
+}
+
+/*
+ * call-seq:
+ * mod.class_eval(string [, filename [, lineno]]) -> obj
+ * mod.class_eval {|mod| block } -> obj
+ * mod.module_eval(string [, filename [, lineno]]) -> obj
+ * mod.module_eval {|mod| block } -> obj
+ *
+ * Evaluates the string or block in the context of _mod_, except that when
+ * a block is given, constant/class variable lookup is not affected. This
+ * can be used to add methods to a class. <code>module_eval</code> returns
+ * the result of evaluating its argument. The optional _filename_ and
+ * _lineno_ parameters set the text for error messages.
+ *
+ * class Thing
+ * end
+ * a = %q{def hello() "Hello there!" end}
+ * Thing.module_eval(a)
+ * puts Thing.new.hello()
+ * Thing.module_eval("invalid code", "dummy", 123)
+ *
+ * <em>produces:</em>
+ *
+ * Hello there!
+ * dummy:123:in `module_eval': undefined local variable
+ * or method `code' for Thing:Class
+ */
+
+VALUE
+rb_mod_module_eval(int argc, const VALUE *argv, VALUE mod)
+{
+ return specific_eval(argc, argv, mod, mod);
+}
+
+/*
+ * call-seq:
+ * mod.module_exec(arg...) {|var...| block } -> obj
+ * mod.class_exec(arg...) {|var...| block } -> obj
+ *
+ * Evaluates the given block in the context of the class/module.
+ * The method defined in the block will belong to the receiver.
+ * Any arguments passed to the method will be passed to the block.
+ * This can be used if the block needs to access instance variables.
+ *
+ * class Thing
+ * end
+ * Thing.class_exec{
+ * def hello() "Hello there!" end
+ * }
+ * puts Thing.new.hello()
+ *
+ * <em>produces:</em>
+ *
+ * Hello there!
+ */
+
+VALUE
+rb_mod_module_exec(int argc, const VALUE *argv, VALUE mod)
+{
+ return yield_under(mod, mod, argc, argv);
+}
+
+/*
+ * Document-class: UncaughtThrowError
+ *
+ * Raised when +throw+ is called with a _tag_ which does not have
+ * corresponding +catch+ block.
+ *
+ * throw "foo", "bar"
+ *
+ * <em>raises the exception:</em>
+ *
+ * UncaughtThrowError: uncaught throw "foo"
+ */
+
+static VALUE
+uncaught_throw_init(int argc, const VALUE *argv, VALUE exc)
+{
+ rb_check_arity(argc, 2, UNLIMITED_ARGUMENTS);
+ rb_call_super(argc - 2, argv + 2);
+ rb_ivar_set(exc, id_tag, argv[0]);
+ rb_ivar_set(exc, id_value, argv[1]);
+ return exc;
+}
+
+/*
+ * call-seq:
+ * uncaught_throw.tag -> obj
+ *
+ * Return the tag object which was called for.
+ */
+
+static VALUE
+uncaught_throw_tag(VALUE exc)
+{
+ return rb_ivar_get(exc, id_tag);
+}
+
+/*
+ * call-seq:
+ * uncaught_throw.value -> obj
+ *
+ * Return the return value which was called for.
+ */
+
+static VALUE
+uncaught_throw_value(VALUE exc)
+{
+ return rb_ivar_get(exc, id_value);
+}
+
+/*
+ * call-seq:
+ * uncaught_throw.to_s -> string
+ *
+ * Returns formatted message with the inspected tag.
+ */
+
+static VALUE
+uncaught_throw_to_s(VALUE exc)
+{
+ VALUE mesg = rb_attr_get(exc, id_mesg);
+ VALUE tag = uncaught_throw_tag(exc);
+ return rb_str_format(1, &tag, mesg);
+}
+
+/*
+ * call-seq:
+ * throw(tag [, obj])
+ *
+ * Transfers control to the end of the active +catch+ block
+ * waiting for _tag_. Raises +UncaughtThrowError+ if there
+ * is no +catch+ block for the _tag_. The optional second
+ * parameter supplies a return value for the +catch+ block,
+ * which otherwise defaults to +nil+. For examples, see
+ * <code>Kernel::catch</code>.
+ */
+
+static VALUE
+rb_f_throw(int argc, VALUE *argv)
+{
+ VALUE tag, value;
+
+ rb_scan_args(argc, argv, "11", &tag, &value);
+ rb_throw_obj(tag, value);
+ UNREACHABLE;
+}
+
+void
+rb_throw_obj(VALUE tag, VALUE value)
+{
+ rb_execution_context_t *ec = GET_EC();
+ struct rb_vm_tag *tt = ec->tag;
+
+ while (tt) {
+ if (tt->tag == tag) {
+ tt->retval = value;
+ break;
+ }
+ tt = tt->prev;
+ }
+ if (!tt) {
+ VALUE desc[3];
+ desc[0] = tag;
+ desc[1] = value;
+ desc[2] = rb_str_new_cstr("uncaught throw %p");
+ rb_exc_raise(rb_class_new_instance(numberof(desc), desc, rb_eUncaughtThrow));
+ }
+
+ ec->errinfo = (VALUE)THROW_DATA_NEW(tag, NULL, TAG_THROW);
+ EC_JUMP_TAG(ec, TAG_THROW);
+}
+
+void
+rb_throw(const char *tag, VALUE val)
+{
+ rb_throw_obj(rb_sym_intern_ascii_cstr(tag), val);
+}
+
+static VALUE
+catch_i(VALUE tag, VALUE data)
+{
+ return rb_yield_0(1, &tag);
+}
+
+/*
+ * call-seq:
+ * catch([tag]) {|tag| block } -> obj
+ *
+ * +catch+ executes its block. If +throw+ is not called, the block executes
+ * normally, and +catch+ returns the value of the last expression evaluated.
+ *
+ * catch(1) { 123 } # => 123
+ *
+ * If <code>throw(tag2, val)</code> is called, Ruby searches up its stack for
+ * a +catch+ block whose +tag+ has the same +object_id+ as _tag2_. When found,
+ * the block stops executing and returns _val_ (or +nil+ if no second argument
+ * was given to +throw+).
+ *
+ * catch(1) { throw(1, 456) } # => 456
+ * catch(1) { throw(1) } # => nil
+ *
+ * When +tag+ is passed as the first argument, +catch+ yields it as the
+ * parameter of the block.
+ *
+ * catch(1) {|x| x + 2 } # => 3
+ *
+ * When no +tag+ is given, +catch+ yields a new unique object (as from
+ * +Object.new+) as the block parameter. This object can then be used as the
+ * argument to +throw+, and will match the correct +catch+ block.
+ *
+ * catch do |obj_A|
+ * catch do |obj_B|
+ * throw(obj_B, 123)
+ * puts "This puts is not reached"
+ * end
+ *
+ * puts "This puts is displayed"
+ * 456
+ * end
+ *
+ * # => 456
+ *
+ * catch do |obj_A|
+ * catch do |obj_B|
+ * throw(obj_A, 123)
+ * puts "This puts is still not reached"
+ * end
+ *
+ * puts "Now this puts is also not reached"
+ * 456
+ * end
+ *
+ * # => 123
+ */
+
+static VALUE
+rb_f_catch(int argc, VALUE *argv)
+{
+ VALUE tag;
+
+ if (argc == 0) {
+ tag = rb_obj_alloc(rb_cObject);
+ }
+ else {
+ rb_scan_args(argc, argv, "01", &tag);
+ }
+ return rb_catch_obj(tag, catch_i, 0);
+}
+
+VALUE
+rb_catch(const char *tag, VALUE (*func)(), VALUE data)
+{
+ VALUE vtag = tag ? rb_sym_intern_ascii_cstr(tag) : rb_obj_alloc(rb_cObject);
+ return rb_catch_obj(vtag, func, data);
+}
+
+static VALUE
+vm_catch_protect(VALUE tag, rb_block_call_func *func, VALUE data,
+ enum ruby_tag_type *stateptr, rb_execution_context_t *volatile ec)
+{
+ enum ruby_tag_type state;
+ VALUE val = Qnil; /* OK */
+ rb_control_frame_t *volatile saved_cfp = ec->cfp;
+
+ EC_PUSH_TAG(ec);
+
+ _tag.tag = tag;
+
+ if ((state = EC_EXEC_TAG()) == TAG_NONE) {
+ /* call with argc=1, argv = [tag], block = Qnil to insure compatibility */
+ val = (*func)(tag, data, 1, (const VALUE *)&tag, Qnil);
+ }
+ else if (state == TAG_THROW && THROW_DATA_VAL((struct vm_throw_data *)ec->errinfo) == tag) {
+ rb_vm_rewind_cfp(ec, saved_cfp);
+ val = ec->tag->retval;
+ ec->errinfo = Qnil;
+ state = 0;
+ }
+ EC_POP_TAG();
+ if (stateptr)
+ *stateptr = state;
+
+ return val;
+}
+
+VALUE
+rb_catch_protect(VALUE t, rb_block_call_func *func, VALUE data, enum ruby_tag_type *stateptr)
+{
+ return vm_catch_protect(t, func, data, stateptr, GET_EC());
+}
+
+VALUE
+rb_catch_obj(VALUE t, VALUE (*func)(), VALUE data)
+{
+ enum ruby_tag_type state;
+ rb_execution_context_t *ec = GET_EC();
+ VALUE val = vm_catch_protect(t, (rb_block_call_func *)func, data, &state, ec);
+ if (state) EC_JUMP_TAG(ec, state);
+ return val;
+}
+
+static void
+local_var_list_init(struct local_var_list *vars)
+{
+ vars->tbl = rb_hash_new();
+ RHASH(vars->tbl)->ntbl = st_init_numtable(); /* compare_by_identity */
+ RBASIC_CLEAR_CLASS(vars->tbl);
+}
+
+static VALUE
+local_var_list_finish(struct local_var_list *vars)
+{
+ /* TODO: not to depend on the order of st_table */
+ VALUE ary = rb_hash_keys(vars->tbl);
+ rb_hash_clear(vars->tbl);
+ vars->tbl = 0;
+ return ary;
+}
+
+static int
+local_var_list_update(st_data_t *key, st_data_t *value, st_data_t arg, int existing)
+{
+ if (existing) return ST_STOP;
+ *value = (st_data_t)Qtrue; /* INT2FIX(arg) */
+ return ST_CONTINUE;
+}
+
+static void
+local_var_list_add(const struct local_var_list *vars, ID lid)
+{
+ if (lid && rb_is_local_id(lid)) {
+ /* should skip temporary variable */
+ st_table *tbl = RHASH_TBL_RAW(vars->tbl);
+ st_data_t idx = 0; /* tbl->num_entries */
+ st_update(tbl, ID2SYM(lid), local_var_list_update, idx);
+ }
+}
+
+/*
+ * call-seq:
+ * local_variables -> array
+ *
+ * Returns the names of the current local variables.
+ *
+ * fred = 1
+ * for i in 1..10
+ * # ...
+ * end
+ * local_variables #=> [:fred, :i]
+ */
+
+static VALUE
+rb_f_local_variables(void)
+{
+ struct local_var_list vars;
+ rb_execution_context_t *ec = GET_EC();
+ rb_control_frame_t *cfp = vm_get_ruby_level_caller_cfp(ec, RUBY_VM_PREVIOUS_CONTROL_FRAME(ec->cfp));
+ unsigned int i;
+
+ local_var_list_init(&vars);
+ while (cfp) {
+ if (cfp->iseq) {
+ for (i = 0; i < cfp->iseq->body->local_table_size; i++) {
+ local_var_list_add(&vars, cfp->iseq->body->local_table[i]);
+ }
+ }
+ if (!VM_ENV_LOCAL_P(cfp->ep)) {
+ /* block */
+ const VALUE *ep = VM_CF_PREV_EP(cfp);
+
+ if (vm_collect_local_variables_in_heap(ep, &vars)) {
+ break;
+ }
+ else {
+ while (cfp->ep != ep) {
+ cfp = RUBY_VM_PREVIOUS_CONTROL_FRAME(cfp);
+ }
+ }
+ }
+ else {
+ break;
+ }
+ }
+ return local_var_list_finish(&vars);
+}
+
+/*
+ * call-seq:
+ * block_given? -> true or false
+ * iterator? -> true or false
+ *
+ * Returns <code>true</code> if <code>yield</code> would execute a
+ * block in the current context. The <code>iterator?</code> form
+ * is mildly deprecated.
+ *
+ * def try
+ * if block_given?
+ * yield
+ * else
+ * "no block"
+ * end
+ * end
+ * try #=> "no block"
+ * try { "hello" } #=> "hello"
+ * try do "hello" end #=> "hello"
+ */
+
+
+static VALUE
+rb_f_block_given_p(void)
+{
+ rb_execution_context_t *ec = GET_EC();
+ rb_control_frame_t *cfp = ec->cfp;
+ cfp = vm_get_ruby_level_caller_cfp(ec, RUBY_VM_PREVIOUS_CONTROL_FRAME(cfp));
+
+ if (cfp != NULL && VM_CF_BLOCK_HANDLER(cfp) != VM_BLOCK_HANDLER_NONE) {
+ return Qtrue;
+ }
+ else {
+ return Qfalse;
+ }
+}
+
+VALUE
+rb_current_realfilepath(void)
+{
+ const rb_execution_context_t *ec = GET_EC();
+ rb_control_frame_t *cfp = ec->cfp;
+ cfp = vm_get_ruby_level_caller_cfp(ec, RUBY_VM_PREVIOUS_CONTROL_FRAME(cfp));
+ if (cfp != 0) return rb_iseq_realpath(cfp->iseq);
+ return Qnil;
+}
+
+void
+Init_vm_eval(void)
+{
+ rb_define_global_function("eval", rb_f_eval, -1);
+ rb_define_global_function("local_variables", rb_f_local_variables, 0);
+ rb_define_global_function("iterator?", rb_f_block_given_p, 0);
+ rb_define_global_function("block_given?", rb_f_block_given_p, 0);
+
+ rb_define_global_function("catch", rb_f_catch, -1);
+ rb_define_global_function("throw", rb_f_throw, -1);
+
+ rb_define_global_function("loop", rb_f_loop, 0);
+
+ rb_define_method(rb_cBasicObject, "instance_eval", rb_obj_instance_eval, -1);
+ rb_define_method(rb_cBasicObject, "instance_exec", rb_obj_instance_exec, -1);
+ rb_define_private_method(rb_cBasicObject, "method_missing", rb_method_missing, -1);
+
+#if 1
+ rb_add_method(rb_cBasicObject, rb_intern("__send__"),
+ VM_METHOD_TYPE_OPTIMIZED, (void *)OPTIMIZED_METHOD_TYPE_SEND, METHOD_VISI_PUBLIC);
+ rb_add_method(rb_mKernel, rb_intern("send"),
+ VM_METHOD_TYPE_OPTIMIZED, (void *)OPTIMIZED_METHOD_TYPE_SEND, METHOD_VISI_PUBLIC);
+#else
+ rb_define_method(rb_cBasicObject, "__send__", rb_f_send, -1);
+ rb_define_method(rb_mKernel, "send", rb_f_send, -1);
+#endif
+ rb_define_method(rb_mKernel, "public_send", rb_f_public_send, -1);
+
+ rb_define_method(rb_cModule, "module_exec", rb_mod_module_exec, -1);
+ rb_define_method(rb_cModule, "class_exec", rb_mod_module_exec, -1);
+ rb_define_method(rb_cModule, "module_eval", rb_mod_module_eval, -1);
+ rb_define_method(rb_cModule, "class_eval", rb_mod_module_eval, -1);
+
+ rb_eUncaughtThrow = rb_define_class("UncaughtThrowError", rb_eArgError);
+ rb_define_method(rb_eUncaughtThrow, "initialize", uncaught_throw_init, -1);
+ rb_define_method(rb_eUncaughtThrow, "tag", uncaught_throw_tag, 0);
+ rb_define_method(rb_eUncaughtThrow, "value", uncaught_throw_value, 0);
+ rb_define_method(rb_eUncaughtThrow, "to_s", uncaught_throw_to_s, 0);
+
+ id_result = rb_intern_const("result");
+ id_tag = rb_intern_const("tag");
+ id_value = rb_intern_const("value");
+}
generated by cgit v1.2.3 (git 2.25.1) at 2026-06-06 09:00:42 +0000