| Index: src/ast/compile-time-value.cc
|
| diff --git a/src/ast/compile-time-value.cc b/src/ast/compile-time-value.cc
|
| new file mode 100644
|
| index 0000000000000000000000000000000000000000..eda536b7167e052ce9ee9adac50b26c2a70e6280
|
| --- /dev/null
|
| +++ b/src/ast/compile-time-value.cc
|
| @@ -0,0 +1,56 @@
|
| +// Copyright 2016 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/ast/compile-time-value.h"
|
| +
|
| +#include "src/ast/ast.h"
|
| +#include "src/factory.h"
|
| +#include "src/handles-inl.h"
|
| +#include "src/isolate.h"
|
| +#include "src/objects-inl.h"
|
| +
|
| +namespace v8 {
|
| +namespace internal {
|
| +
|
| +bool CompileTimeValue::IsCompileTimeValue(Expression* expression) {
|
| + if (expression->IsLiteral()) return true;
|
| + MaterializedLiteral* lit = expression->AsMaterializedLiteral();
|
| + return lit != NULL && lit->is_simple();
|
| +}
|
| +
|
| +Handle<FixedArray> CompileTimeValue::GetValue(Isolate* isolate,
|
| + Expression* expression) {
|
| + Factory* factory = isolate->factory();
|
| + DCHECK(IsCompileTimeValue(expression));
|
| + Handle<FixedArray> result = factory->NewFixedArray(2, TENURED);
|
| + ObjectLiteral* object_literal = expression->AsObjectLiteral();
|
| + if (object_literal != NULL) {
|
| + DCHECK(object_literal->is_simple());
|
| + if (object_literal->fast_elements()) {
|
| + result->set(kLiteralTypeSlot, Smi::FromInt(OBJECT_LITERAL_FAST_ELEMENTS));
|
| + } else {
|
| + result->set(kLiteralTypeSlot, Smi::FromInt(OBJECT_LITERAL_SLOW_ELEMENTS));
|
| + }
|
| + result->set(kElementsSlot, *object_literal->constant_properties());
|
| + } else {
|
| + ArrayLiteral* array_literal = expression->AsArrayLiteral();
|
| + DCHECK(array_literal != NULL && array_literal->is_simple());
|
| + result->set(kLiteralTypeSlot, Smi::FromInt(ARRAY_LITERAL));
|
| + result->set(kElementsSlot, *array_literal->constant_elements());
|
| + }
|
| + return result;
|
| +}
|
| +
|
| +CompileTimeValue::LiteralType CompileTimeValue::GetLiteralType(
|
| + Handle<FixedArray> value) {
|
| + Smi* literal_type = Smi::cast(value->get(kLiteralTypeSlot));
|
| + return static_cast<LiteralType>(literal_type->value());
|
| +}
|
| +
|
| +Handle<FixedArray> CompileTimeValue::GetElements(Handle<FixedArray> value) {
|
| + return Handle<FixedArray>(FixedArray::cast(value->get(kElementsSlot)));
|
| +}
|
| +
|
| +} // namespace internal
|
| +} // namespace v8
|
|
|