blob: e8ded431227385b43d477bb986b00f47865eba93 [file] [log] [blame]
// Copyright 2015 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/allocation.h"
#include "src/globals.h"
namespace v8 {
namespace internal {
class Expression;
// Support for handling complex values (array and object literals) that
// can be fully handled at compile time.
class CompileTimeValue : public AllStatic {
// This is a special marker used to encode array literals. The value has to be
// different from any value possibly returned by
// ObjectLiteral::EncodeLiteralType.
static const int kArrayLiteralFlag = -1;
static bool IsCompileTimeValue(Expression* expression);
// Get the value as a compile time value.
static Handle<FixedArray> GetValue(Isolate* isolate, Expression* expression);
// Get the encoded literal type. This can either be kArrayLiteralFlag or
// encoded properties of an ObjectLiteral returned by
// ObjectLiteral::EncodeLiteralType.
static int GetLiteralTypeFlags(Handle<FixedArray> value);
// Get the elements of a compile time value returned by GetValue().
static Handle<HeapObject> GetElements(Handle<FixedArray> value);
static const int kLiteralTypeSlot = 0;
static const int kElementsSlot = 1;
} // namespace internal
} // namespace v8