Update V8 to version 4.1.0.21
This is a cherry-pick of all commits up to and including the
4.1.0.21 cherry-pick in Chromium.
Original commit message:
Version 4.1.0.21 (cherry-pick)
Merged 206e9136bde0f2b5ae8cb77afbb1e7833e5bd412
Unlink pages from the space page list after evacuation.
BUG=430201
LOG=N
R=jkummerow@chromium.org
Review URL: https://codereview.chromium.org/953813002
Cr-Commit-Position: refs/branch-heads/4.1@{#22}
Cr-Branched-From: 2e08d2a7aa9d65d269d8c57aba82eb38a8cb0a18-refs/heads/candidates@{#25353}
---
FPIIM-449
Change-Id: I8c23c7bbb70772b4858fe8a47b64fa97ee0d1f8c
diff --git a/src/runtime/runtime-function.cc b/src/runtime/runtime-function.cc
new file mode 100644
index 0000000..e25b659
--- /dev/null
+++ b/src/runtime/runtime-function.cc
@@ -0,0 +1,625 @@
+// Copyright 2014 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "src/v8.h"
+
+#include "src/accessors.h"
+#include "src/arguments.h"
+#include "src/compiler.h"
+#include "src/deoptimizer.h"
+#include "src/frames.h"
+#include "src/runtime/runtime-utils.h"
+
+namespace v8 {
+namespace internal {
+
+RUNTIME_FUNCTION(Runtime_IsSloppyModeFunction) {
+ SealHandleScope shs(isolate);
+ DCHECK(args.length() == 1);
+ CONVERT_ARG_CHECKED(JSReceiver, callable, 0);
+ if (!callable->IsJSFunction()) {
+ HandleScope scope(isolate);
+ Handle<Object> delegate;
+ ASSIGN_RETURN_FAILURE_ON_EXCEPTION(
+ isolate, delegate, Execution::TryGetFunctionDelegate(
+ isolate, Handle<JSReceiver>(callable)));
+ callable = JSFunction::cast(*delegate);
+ }
+ JSFunction* function = JSFunction::cast(callable);
+ SharedFunctionInfo* shared = function->shared();
+ return isolate->heap()->ToBoolean(shared->strict_mode() == SLOPPY);
+}
+
+
+RUNTIME_FUNCTION(Runtime_GetDefaultReceiver) {
+ SealHandleScope shs(isolate);
+ DCHECK(args.length() == 1);
+ CONVERT_ARG_CHECKED(JSReceiver, callable, 0);
+
+ if (!callable->IsJSFunction()) {
+ HandleScope scope(isolate);
+ Handle<Object> delegate;
+ ASSIGN_RETURN_FAILURE_ON_EXCEPTION(
+ isolate, delegate, Execution::TryGetFunctionDelegate(
+ isolate, Handle<JSReceiver>(callable)));
+ callable = JSFunction::cast(*delegate);
+ }
+ JSFunction* function = JSFunction::cast(callable);
+
+ SharedFunctionInfo* shared = function->shared();
+ if (shared->native() || shared->strict_mode() == STRICT) {
+ return isolate->heap()->undefined_value();
+ }
+ // Returns undefined for strict or native functions, or
+ // the associated global receiver for "normal" functions.
+
+ return function->global_proxy();
+}
+
+
+RUNTIME_FUNCTION(Runtime_FunctionGetName) {
+ SealHandleScope shs(isolate);
+ DCHECK(args.length() == 1);
+
+ CONVERT_ARG_CHECKED(JSFunction, f, 0);
+ return f->shared()->name();
+}
+
+
+static Handle<String> NameToFunctionName(Handle<Name> name) {
+ Handle<String> stringName(name->GetHeap()->empty_string());
+
+ // TODO(caitp): Follow proper rules in section 9.2.11 (SetFunctionName)
+ if (name->IsSymbol()) {
+ Handle<Object> description(Handle<Symbol>::cast(name)->name(),
+ name->GetIsolate());
+ if (description->IsString()) {
+ stringName = Handle<String>::cast(description);
+ }
+ } else {
+ stringName = Handle<String>::cast(name);
+ }
+
+ return stringName;
+}
+
+
+RUNTIME_FUNCTION(Runtime_FunctionSetName) {
+ HandleScope scope(isolate);
+ DCHECK(args.length() == 2);
+
+ CONVERT_ARG_HANDLE_CHECKED(JSFunction, f, 0);
+ CONVERT_ARG_HANDLE_CHECKED(Name, name, 1);
+
+ f->shared()->set_name(*NameToFunctionName(name));
+ return isolate->heap()->undefined_value();
+}
+
+
+RUNTIME_FUNCTION(Runtime_FunctionNameShouldPrintAsAnonymous) {
+ SealHandleScope shs(isolate);
+ DCHECK(args.length() == 1);
+ CONVERT_ARG_CHECKED(JSFunction, f, 0);
+ return isolate->heap()->ToBoolean(
+ f->shared()->name_should_print_as_anonymous());
+}
+
+
+RUNTIME_FUNCTION(Runtime_FunctionMarkNameShouldPrintAsAnonymous) {
+ SealHandleScope shs(isolate);
+ DCHECK(args.length() == 1);
+ CONVERT_ARG_CHECKED(JSFunction, f, 0);
+ f->shared()->set_name_should_print_as_anonymous(true);
+ return isolate->heap()->undefined_value();
+}
+
+
+RUNTIME_FUNCTION(Runtime_FunctionIsArrow) {
+ SealHandleScope shs(isolate);
+ DCHECK(args.length() == 1);
+ CONVERT_ARG_CHECKED(JSFunction, f, 0);
+ return isolate->heap()->ToBoolean(f->shared()->is_arrow());
+}
+
+
+RUNTIME_FUNCTION(Runtime_FunctionIsConciseMethod) {
+ SealHandleScope shs(isolate);
+ DCHECK(args.length() == 1);
+ CONVERT_ARG_CHECKED(JSFunction, f, 0);
+ return isolate->heap()->ToBoolean(f->shared()->is_concise_method());
+}
+
+
+RUNTIME_FUNCTION(Runtime_FunctionRemovePrototype) {
+ SealHandleScope shs(isolate);
+ DCHECK(args.length() == 1);
+
+ CONVERT_ARG_CHECKED(JSFunction, f, 0);
+ RUNTIME_ASSERT(f->RemovePrototype());
+
+ return isolate->heap()->undefined_value();
+}
+
+
+RUNTIME_FUNCTION(Runtime_FunctionGetScript) {
+ HandleScope scope(isolate);
+ DCHECK(args.length() == 1);
+
+ CONVERT_ARG_CHECKED(JSFunction, fun, 0);
+ Handle<Object> script = Handle<Object>(fun->shared()->script(), isolate);
+ if (!script->IsScript()) return isolate->heap()->undefined_value();
+
+ return *Script::GetWrapper(Handle<Script>::cast(script));
+}
+
+
+RUNTIME_FUNCTION(Runtime_FunctionGetSourceCode) {
+ HandleScope scope(isolate);
+ DCHECK(args.length() == 1);
+
+ CONVERT_ARG_HANDLE_CHECKED(JSFunction, f, 0);
+ Handle<SharedFunctionInfo> shared(f->shared());
+ return *shared->GetSourceCode();
+}
+
+
+RUNTIME_FUNCTION(Runtime_FunctionGetScriptSourcePosition) {
+ SealHandleScope shs(isolate);
+ DCHECK(args.length() == 1);
+
+ CONVERT_ARG_CHECKED(JSFunction, fun, 0);
+ int pos = fun->shared()->start_position();
+ return Smi::FromInt(pos);
+}
+
+
+RUNTIME_FUNCTION(Runtime_FunctionGetPositionForOffset) {
+ SealHandleScope shs(isolate);
+ DCHECK(args.length() == 2);
+
+ CONVERT_ARG_CHECKED(Code, code, 0);
+ CONVERT_NUMBER_CHECKED(int, offset, Int32, args[1]);
+
+ RUNTIME_ASSERT(0 <= offset && offset < code->Size());
+
+ Address pc = code->address() + offset;
+ return Smi::FromInt(code->SourcePosition(pc));
+}
+
+
+RUNTIME_FUNCTION(Runtime_FunctionSetInstanceClassName) {
+ SealHandleScope shs(isolate);
+ DCHECK(args.length() == 2);
+
+ CONVERT_ARG_CHECKED(JSFunction, fun, 0);
+ CONVERT_ARG_CHECKED(String, name, 1);
+ fun->SetInstanceClassName(name);
+ return isolate->heap()->undefined_value();
+}
+
+
+RUNTIME_FUNCTION(Runtime_FunctionSetLength) {
+ SealHandleScope shs(isolate);
+ DCHECK(args.length() == 2);
+
+ CONVERT_ARG_CHECKED(JSFunction, fun, 0);
+ CONVERT_SMI_ARG_CHECKED(length, 1);
+ RUNTIME_ASSERT((length & 0xC0000000) == 0xC0000000 ||
+ (length & 0xC0000000) == 0x0);
+ fun->shared()->set_length(length);
+ return isolate->heap()->undefined_value();
+}
+
+
+RUNTIME_FUNCTION(Runtime_FunctionSetPrototype) {
+ HandleScope scope(isolate);
+ DCHECK(args.length() == 2);
+
+ CONVERT_ARG_HANDLE_CHECKED(JSFunction, fun, 0);
+ CONVERT_ARG_HANDLE_CHECKED(Object, value, 1);
+ RUNTIME_ASSERT(fun->should_have_prototype());
+ RETURN_FAILURE_ON_EXCEPTION(isolate,
+ Accessors::FunctionSetPrototype(fun, value));
+ return args[0]; // return TOS
+}
+
+
+RUNTIME_FUNCTION(Runtime_FunctionIsAPIFunction) {
+ SealHandleScope shs(isolate);
+ DCHECK(args.length() == 1);
+
+ CONVERT_ARG_CHECKED(JSFunction, f, 0);
+ return isolate->heap()->ToBoolean(f->shared()->IsApiFunction());
+}
+
+
+RUNTIME_FUNCTION(Runtime_FunctionIsBuiltin) {
+ SealHandleScope shs(isolate);
+ DCHECK(args.length() == 1);
+
+ CONVERT_ARG_CHECKED(JSFunction, f, 0);
+ return isolate->heap()->ToBoolean(f->IsBuiltin());
+}
+
+
+RUNTIME_FUNCTION(Runtime_SetCode) {
+ HandleScope scope(isolate);
+ DCHECK(args.length() == 2);
+
+ CONVERT_ARG_HANDLE_CHECKED(JSFunction, target, 0);
+ CONVERT_ARG_HANDLE_CHECKED(JSFunction, source, 1);
+
+ Handle<SharedFunctionInfo> target_shared(target->shared());
+ Handle<SharedFunctionInfo> source_shared(source->shared());
+ RUNTIME_ASSERT(!source_shared->bound());
+
+ if (!Compiler::EnsureCompiled(source, KEEP_EXCEPTION)) {
+ return isolate->heap()->exception();
+ }
+
+ // Mark both, the source and the target, as un-flushable because the
+ // shared unoptimized code makes them impossible to enqueue in a list.
+ DCHECK(target_shared->code()->gc_metadata() == NULL);
+ DCHECK(source_shared->code()->gc_metadata() == NULL);
+ target_shared->set_dont_flush(true);
+ source_shared->set_dont_flush(true);
+
+ // Set the code, scope info, formal parameter count, and the length
+ // of the target shared function info.
+ target_shared->ReplaceCode(source_shared->code());
+ target_shared->set_scope_info(source_shared->scope_info());
+ target_shared->set_length(source_shared->length());
+ target_shared->set_feedback_vector(source_shared->feedback_vector());
+ target_shared->set_formal_parameter_count(
+ source_shared->formal_parameter_count());
+ target_shared->set_script(source_shared->script());
+ target_shared->set_start_position_and_type(
+ source_shared->start_position_and_type());
+ target_shared->set_end_position(source_shared->end_position());
+ bool was_native = target_shared->native();
+ target_shared->set_compiler_hints(source_shared->compiler_hints());
+ target_shared->set_native(was_native);
+ target_shared->set_profiler_ticks(source_shared->profiler_ticks());
+
+ // Set the code of the target function.
+ target->ReplaceCode(source_shared->code());
+ DCHECK(target->next_function_link()->IsUndefined());
+
+ // Make sure we get a fresh copy of the literal vector to avoid cross
+ // context contamination.
+ Handle<Context> context(source->context());
+ int number_of_literals = source->NumberOfLiterals();
+ Handle<FixedArray> literals =
+ isolate->factory()->NewFixedArray(number_of_literals, TENURED);
+ if (number_of_literals > 0) {
+ literals->set(JSFunction::kLiteralNativeContextIndex,
+ context->native_context());
+ }
+ target->set_context(*context);
+ target->set_literals(*literals);
+
+ if (isolate->logger()->is_logging_code_events() ||
+ isolate->cpu_profiler()->is_profiling()) {
+ isolate->logger()->LogExistingFunction(source_shared,
+ Handle<Code>(source_shared->code()));
+ }
+
+ return *target;
+}
+
+
+// Set the native flag on the function.
+// This is used to decide if we should transform null and undefined
+// into the global object when doing call and apply.
+RUNTIME_FUNCTION(Runtime_SetNativeFlag) {
+ SealHandleScope shs(isolate);
+ RUNTIME_ASSERT(args.length() == 1);
+
+ CONVERT_ARG_CHECKED(Object, object, 0);
+
+ if (object->IsJSFunction()) {
+ JSFunction* func = JSFunction::cast(object);
+ func->shared()->set_native(true);
+ }
+ return isolate->heap()->undefined_value();
+}
+
+
+RUNTIME_FUNCTION(Runtime_SetInlineBuiltinFlag) {
+ SealHandleScope shs(isolate);
+ RUNTIME_ASSERT(args.length() == 1);
+ CONVERT_ARG_HANDLE_CHECKED(Object, object, 0);
+
+ if (object->IsJSFunction()) {
+ JSFunction* func = JSFunction::cast(*object);
+ func->shared()->set_inline_builtin(true);
+ }
+ return isolate->heap()->undefined_value();
+}
+
+
+// Find the arguments of the JavaScript function invocation that called
+// into C++ code. Collect these in a newly allocated array of handles (possibly
+// prefixed by a number of empty handles).
+static SmartArrayPointer<Handle<Object> > GetCallerArguments(Isolate* isolate,
+ int prefix_argc,
+ int* total_argc) {
+ // Find frame containing arguments passed to the caller.
+ JavaScriptFrameIterator it(isolate);
+ JavaScriptFrame* frame = it.frame();
+ List<JSFunction*> functions(2);
+ frame->GetFunctions(&functions);
+ if (functions.length() > 1) {
+ int inlined_jsframe_index = functions.length() - 1;
+ JSFunction* inlined_function = functions[inlined_jsframe_index];
+ SlotRefValueBuilder slot_refs(
+ frame, inlined_jsframe_index,
+ inlined_function->shared()->formal_parameter_count());
+
+ int args_count = slot_refs.args_length();
+
+ *total_argc = prefix_argc + args_count;
+ SmartArrayPointer<Handle<Object> > param_data(
+ NewArray<Handle<Object> >(*total_argc));
+ slot_refs.Prepare(isolate);
+ for (int i = 0; i < args_count; i++) {
+ Handle<Object> val = slot_refs.GetNext(isolate, 0);
+ param_data[prefix_argc + i] = val;
+ }
+ slot_refs.Finish(isolate);
+
+ return param_data;
+ } else {
+ it.AdvanceToArgumentsFrame();
+ frame = it.frame();
+ int args_count = frame->ComputeParametersCount();
+
+ *total_argc = prefix_argc + args_count;
+ SmartArrayPointer<Handle<Object> > param_data(
+ NewArray<Handle<Object> >(*total_argc));
+ for (int i = 0; i < args_count; i++) {
+ Handle<Object> val = Handle<Object>(frame->GetParameter(i), isolate);
+ param_data[prefix_argc + i] = val;
+ }
+ return param_data;
+ }
+}
+
+
+RUNTIME_FUNCTION(Runtime_FunctionBindArguments) {
+ HandleScope scope(isolate);
+ DCHECK(args.length() == 4);
+ CONVERT_ARG_HANDLE_CHECKED(JSFunction, bound_function, 0);
+ CONVERT_ARG_HANDLE_CHECKED(Object, bindee, 1);
+ CONVERT_ARG_HANDLE_CHECKED(Object, this_object, 2);
+ CONVERT_NUMBER_ARG_HANDLE_CHECKED(new_length, 3);
+
+ // TODO(lrn): Create bound function in C++ code from premade shared info.
+ bound_function->shared()->set_bound(true);
+ // Get all arguments of calling function (Function.prototype.bind).
+ int argc = 0;
+ SmartArrayPointer<Handle<Object> > arguments =
+ GetCallerArguments(isolate, 0, &argc);
+ // Don't count the this-arg.
+ if (argc > 0) {
+ RUNTIME_ASSERT(arguments[0].is_identical_to(this_object));
+ argc--;
+ } else {
+ RUNTIME_ASSERT(this_object->IsUndefined());
+ }
+ // Initialize array of bindings (function, this, and any existing arguments
+ // if the function was already bound).
+ Handle<FixedArray> new_bindings;
+ int i;
+ if (bindee->IsJSFunction() && JSFunction::cast(*bindee)->shared()->bound()) {
+ Handle<FixedArray> old_bindings(
+ JSFunction::cast(*bindee)->function_bindings());
+ RUNTIME_ASSERT(old_bindings->length() > JSFunction::kBoundFunctionIndex);
+ new_bindings =
+ isolate->factory()->NewFixedArray(old_bindings->length() + argc);
+ bindee = Handle<Object>(old_bindings->get(JSFunction::kBoundFunctionIndex),
+ isolate);
+ i = 0;
+ for (int n = old_bindings->length(); i < n; i++) {
+ new_bindings->set(i, old_bindings->get(i));
+ }
+ } else {
+ int array_size = JSFunction::kBoundArgumentsStartIndex + argc;
+ new_bindings = isolate->factory()->NewFixedArray(array_size);
+ new_bindings->set(JSFunction::kBoundFunctionIndex, *bindee);
+ new_bindings->set(JSFunction::kBoundThisIndex, *this_object);
+ i = 2;
+ }
+ // Copy arguments, skipping the first which is "this_arg".
+ for (int j = 0; j < argc; j++, i++) {
+ new_bindings->set(i, *arguments[j + 1]);
+ }
+ new_bindings->set_map_no_write_barrier(
+ isolate->heap()->fixed_cow_array_map());
+ bound_function->set_function_bindings(*new_bindings);
+
+ // Update length. Have to remove the prototype first so that map migration
+ // is happy about the number of fields.
+ RUNTIME_ASSERT(bound_function->RemovePrototype());
+ Handle<Map> bound_function_map(
+ isolate->native_context()->bound_function_map());
+ JSObject::MigrateToMap(bound_function, bound_function_map);
+ Handle<String> length_string = isolate->factory()->length_string();
+ PropertyAttributes attr =
+ static_cast<PropertyAttributes>(DONT_DELETE | DONT_ENUM | READ_ONLY);
+ RETURN_FAILURE_ON_EXCEPTION(
+ isolate, JSObject::SetOwnPropertyIgnoreAttributes(
+ bound_function, length_string, new_length, attr));
+ return *bound_function;
+}
+
+
+RUNTIME_FUNCTION(Runtime_BoundFunctionGetBindings) {
+ HandleScope handles(isolate);
+ DCHECK(args.length() == 1);
+ CONVERT_ARG_HANDLE_CHECKED(JSReceiver, callable, 0);
+ if (callable->IsJSFunction()) {
+ Handle<JSFunction> function = Handle<JSFunction>::cast(callable);
+ if (function->shared()->bound()) {
+ Handle<FixedArray> bindings(function->function_bindings());
+ RUNTIME_ASSERT(bindings->map() == isolate->heap()->fixed_cow_array_map());
+ return *isolate->factory()->NewJSArrayWithElements(bindings);
+ }
+ }
+ return isolate->heap()->undefined_value();
+}
+
+
+RUNTIME_FUNCTION(Runtime_NewObjectFromBound) {
+ HandleScope scope(isolate);
+ DCHECK(args.length() == 1);
+ // First argument is a function to use as a constructor.
+ CONVERT_ARG_HANDLE_CHECKED(JSFunction, function, 0);
+ RUNTIME_ASSERT(function->shared()->bound());
+
+ // The argument is a bound function. Extract its bound arguments
+ // and callable.
+ Handle<FixedArray> bound_args =
+ Handle<FixedArray>(FixedArray::cast(function->function_bindings()));
+ int bound_argc = bound_args->length() - JSFunction::kBoundArgumentsStartIndex;
+ Handle<Object> bound_function(
+ JSReceiver::cast(bound_args->get(JSFunction::kBoundFunctionIndex)),
+ isolate);
+ DCHECK(!bound_function->IsJSFunction() ||
+ !Handle<JSFunction>::cast(bound_function)->shared()->bound());
+
+ int total_argc = 0;
+ SmartArrayPointer<Handle<Object> > param_data =
+ GetCallerArguments(isolate, bound_argc, &total_argc);
+ for (int i = 0; i < bound_argc; i++) {
+ param_data[i] = Handle<Object>(
+ bound_args->get(JSFunction::kBoundArgumentsStartIndex + i), isolate);
+ }
+
+ if (!bound_function->IsJSFunction()) {
+ ASSIGN_RETURN_FAILURE_ON_EXCEPTION(
+ isolate, bound_function,
+ Execution::TryGetConstructorDelegate(isolate, bound_function));
+ }
+ DCHECK(bound_function->IsJSFunction());
+
+ Handle<Object> result;
+ ASSIGN_RETURN_FAILURE_ON_EXCEPTION(
+ isolate, result, Execution::New(Handle<JSFunction>::cast(bound_function),
+ total_argc, param_data.get()));
+ return *result;
+}
+
+
+RUNTIME_FUNCTION(Runtime_Call) {
+ HandleScope scope(isolate);
+ DCHECK(args.length() >= 2);
+ int argc = args.length() - 2;
+ CONVERT_ARG_CHECKED(JSReceiver, fun, argc + 1);
+ Object* receiver = args[0];
+
+ // If there are too many arguments, allocate argv via malloc.
+ const int argv_small_size = 10;
+ Handle<Object> argv_small_buffer[argv_small_size];
+ SmartArrayPointer<Handle<Object> > argv_large_buffer;
+ Handle<Object>* argv = argv_small_buffer;
+ if (argc > argv_small_size) {
+ argv = new Handle<Object>[argc];
+ if (argv == NULL) return isolate->StackOverflow();
+ argv_large_buffer = SmartArrayPointer<Handle<Object> >(argv);
+ }
+
+ for (int i = 0; i < argc; ++i) {
+ argv[i] = Handle<Object>(args[1 + i], isolate);
+ }
+
+ Handle<JSReceiver> hfun(fun);
+ Handle<Object> hreceiver(receiver, isolate);
+ Handle<Object> result;
+ ASSIGN_RETURN_FAILURE_ON_EXCEPTION(
+ isolate, result,
+ Execution::Call(isolate, hfun, hreceiver, argc, argv, true));
+ return *result;
+}
+
+
+RUNTIME_FUNCTION(Runtime_Apply) {
+ HandleScope scope(isolate);
+ DCHECK(args.length() == 5);
+ CONVERT_ARG_HANDLE_CHECKED(JSReceiver, fun, 0);
+ CONVERT_ARG_HANDLE_CHECKED(Object, receiver, 1);
+ CONVERT_ARG_HANDLE_CHECKED(JSObject, arguments, 2);
+ CONVERT_INT32_ARG_CHECKED(offset, 3);
+ CONVERT_INT32_ARG_CHECKED(argc, 4);
+ RUNTIME_ASSERT(offset >= 0);
+ // Loose upper bound to allow fuzzing. We'll most likely run out of
+ // stack space before hitting this limit.
+ static int kMaxArgc = 1000000;
+ RUNTIME_ASSERT(argc >= 0 && argc <= kMaxArgc);
+
+ // If there are too many arguments, allocate argv via malloc.
+ const int argv_small_size = 10;
+ Handle<Object> argv_small_buffer[argv_small_size];
+ SmartArrayPointer<Handle<Object> > argv_large_buffer;
+ Handle<Object>* argv = argv_small_buffer;
+ if (argc > argv_small_size) {
+ argv = new Handle<Object>[argc];
+ if (argv == NULL) return isolate->StackOverflow();
+ argv_large_buffer = SmartArrayPointer<Handle<Object> >(argv);
+ }
+
+ for (int i = 0; i < argc; ++i) {
+ ASSIGN_RETURN_FAILURE_ON_EXCEPTION(
+ isolate, argv[i], Object::GetElement(isolate, arguments, offset + i));
+ }
+
+ Handle<Object> result;
+ ASSIGN_RETURN_FAILURE_ON_EXCEPTION(
+ isolate, result,
+ Execution::Call(isolate, fun, receiver, argc, argv, true));
+ return *result;
+}
+
+
+RUNTIME_FUNCTION(Runtime_GetFunctionDelegate) {
+ HandleScope scope(isolate);
+ DCHECK(args.length() == 1);
+ CONVERT_ARG_HANDLE_CHECKED(Object, object, 0);
+ RUNTIME_ASSERT(!object->IsJSFunction());
+ return *Execution::GetFunctionDelegate(isolate, object);
+}
+
+
+RUNTIME_FUNCTION(Runtime_GetConstructorDelegate) {
+ HandleScope scope(isolate);
+ DCHECK(args.length() == 1);
+ CONVERT_ARG_HANDLE_CHECKED(Object, object, 0);
+ RUNTIME_ASSERT(!object->IsJSFunction());
+ return *Execution::GetConstructorDelegate(isolate, object);
+}
+
+
+RUNTIME_FUNCTION(RuntimeReference_CallFunction) {
+ SealHandleScope shs(isolate);
+ return __RT_impl_Runtime_Call(args, isolate);
+}
+
+
+RUNTIME_FUNCTION(RuntimeReference_IsConstructCall) {
+ SealHandleScope shs(isolate);
+ DCHECK(args.length() == 0);
+ JavaScriptFrameIterator it(isolate);
+ JavaScriptFrame* frame = it.frame();
+ return isolate->heap()->ToBoolean(frame->IsConstructor());
+}
+
+
+RUNTIME_FUNCTION(RuntimeReference_IsFunction) {
+ SealHandleScope shs(isolate);
+ DCHECK(args.length() == 1);
+ CONVERT_ARG_CHECKED(Object, obj, 0);
+ return isolate->heap()->ToBoolean(obj->IsJSFunction());
+}
+}
+} // namespace v8::internal