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runtime-function.cc
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89 lines (72 loc) · 2.7 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/execution/isolate-inl.h"
#include "src/heap/heap-inl.h" // For ToBoolean. TODO(jkummerow): Drop.
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());
DirectHandle<JSReceiver> function = args.at<JSReceiver>(0);
if (IsJSFunction(*function)) {
DirectHandle<Object> script(Cast<JSFunction>(function)->shared()->script(),
isolate);
if (IsScript(*script)) return Cast<Script>(script)->source();
}
return ReadOnlyRoots(isolate).undefined_value();
}
RUNTIME_FUNCTION(Runtime_FunctionGetScriptId) {
HandleScope scope(isolate);
DCHECK_EQ(1, args.length());
DirectHandle<JSReceiver> function = args.at<JSReceiver>(0);
if (IsJSFunction(*function)) {
DirectHandle<Object> script(Cast<JSFunction>(function)->shared()->script(),
isolate);
if (IsScript(*script)) {
return Smi::FromInt(Cast<Script>(script)->id());
}
}
return Smi::FromInt(-1);
}
RUNTIME_FUNCTION(Runtime_FunctionGetSourceCode) {
HandleScope scope(isolate);
DCHECK_EQ(1, args.length());
DirectHandle<JSReceiver> function = args.at<JSReceiver>(0);
if (IsJSFunction(*function)) {
DirectHandle<SharedFunctionInfo> shared(
Cast<JSFunction>(function)->shared(), isolate);
return *SharedFunctionInfo::GetSourceCode(isolate, shared);
}
return ReadOnlyRoots(isolate).undefined_value();
}
RUNTIME_FUNCTION(Runtime_FunctionGetScriptSourcePosition) {
SealHandleScope shs(isolate);
DCHECK_EQ(1, args.length());
auto fun = Cast<JSFunction>(args[0]);
int pos = fun->shared()->StartPosition();
return Smi::FromInt(pos);
}
RUNTIME_FUNCTION(Runtime_FunctionIsAPIFunction) {
SealHandleScope shs(isolate);
DCHECK_EQ(1, args.length());
auto f = Cast<JSFunction>(args[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;
DirectHandle<Object> target = args.at(0);
DirectHandle<Object> receiver = args.at(1);
DirectHandleVector<Object> arguments(isolate, argc);
for (int i = 0; i < argc; ++i) {
arguments[i] = args.at(2 + i);
}
RETURN_RESULT_OR_FAILURE(isolate, Execution::Call(isolate, target, receiver,
base::VectorOf(arguments)));
}
} // namespace internal
} // namespace v8