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runtime-function.cc
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101 lines (82 loc) · 2.98 KB
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// 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/builtins/accessors.h"
#include "src/codegen/compiler.h"
#include "src/execution/arguments-inl.h"
#include "src/execution/isolate-inl.h"
#include "src/heap/heap-inl.h" // For ToBoolean. TODO(jkummerow): Drop.
#include "src/logging/counters.h"
#include "src/runtime/runtime-utils.h"
namespace v8 {
namespace internal {
// TODO(5530): Remove once uses in debug.js are gone.
RUNTIME_FUNCTION(Runtime_FunctionGetScriptSource) {
HandleScope scope(isolate);
DCHECK_EQ(1, args.length());
CONVERT_ARG_HANDLE_CHECKED(JSReceiver, function, 0);
if (function->IsJSFunction()) {
Handle<Object> script(Handle<JSFunction>::cast(function)->shared().script(),
isolate);
if (script->IsScript()) return Handle<Script>::cast(script)->source();
}
return ReadOnlyRoots(isolate).undefined_value();
}
RUNTIME_FUNCTION(Runtime_FunctionGetScriptId) {
HandleScope scope(isolate);
DCHECK_EQ(1, args.length());
CONVERT_ARG_HANDLE_CHECKED(JSReceiver, function, 0);
if (function->IsJSFunction()) {
Handle<Object> script(Handle<JSFunction>::cast(function)->shared().script(),
isolate);
if (script->IsScript()) {
return Smi::FromInt(Handle<Script>::cast(script)->id());
}
}
return Smi::FromInt(-1);
}
RUNTIME_FUNCTION(Runtime_FunctionGetSourceCode) {
HandleScope scope(isolate);
DCHECK_EQ(1, args.length());
CONVERT_ARG_HANDLE_CHECKED(JSReceiver, function, 0);
if (function->IsJSFunction()) {
Handle<SharedFunctionInfo> shared(
Handle<JSFunction>::cast(function)->shared(), isolate);
return *SharedFunctionInfo::GetSourceCode(shared);
}
return ReadOnlyRoots(isolate).undefined_value();
}
RUNTIME_FUNCTION(Runtime_FunctionGetScriptSourcePosition) {
SealHandleScope shs(isolate);
DCHECK_EQ(1, args.length());
CONVERT_ARG_CHECKED(JSFunction, fun, 0);
int pos = fun.shared().StartPosition();
return Smi::FromInt(pos);
}
RUNTIME_FUNCTION(Runtime_FunctionIsAPIFunction) {
SealHandleScope shs(isolate);
DCHECK_EQ(1, args.length());
CONVERT_ARG_CHECKED(JSFunction, f, 0);
return isolate->heap()->ToBoolean(f.shared().IsApiFunction());
}
RUNTIME_FUNCTION(Runtime_Call) {
HandleScope scope(isolate);
DCHECK_LE(2, args.length());
int const argc = args.length() - 2;
CONVERT_ARG_HANDLE_CHECKED(Object, target, 0);
CONVERT_ARG_HANDLE_CHECKED(Object, receiver, 1);
base::ScopedVector<Handle<Object>> argv(argc);
for (int i = 0; i < argc; ++i) {
argv[i] = args.at(2 + i);
}
RETURN_RESULT_OR_FAILURE(
isolate, Execution::Call(isolate, target, receiver, argc, argv.begin()));
}
RUNTIME_FUNCTION(Runtime_IsFunction) {
SealHandleScope shs(isolate);
DCHECK_EQ(1, args.length());
CONVERT_ARG_CHECKED(Object, object, 0);
return isolate->heap()->ToBoolean(object.IsFunction());
}
} // namespace internal
} // namespace v8