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// 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.
#ifndef V8_AST_COMPILE_TIME_VALUE
#define V8_AST_COMPILE_TIME_VALUE
#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 {
public:
enum LiteralType {
OBJECT_LITERAL_FAST_ELEMENTS,
OBJECT_LITERAL_SLOW_ELEMENTS,
ARRAY_LITERAL
};
static bool IsCompileTimeValue(Expression* expression);
// Get the value as a compile time value.
static Handle<FixedArray> GetValue(Isolate* isolate, Expression* expression);
// Get the type of a compile time value returned by GetValue().
static LiteralType GetLiteralType(Handle<FixedArray> value);
// Get the elements of a compile time value returned by GetValue().
static Handle<HeapObject> GetElements(Handle<FixedArray> value);
private:
static const int kLiteralTypeSlot = 0;
static const int kElementsSlot = 1;
};
} // namespace internal
} // namespace v8
#endif // V8_AST_COMPILE_TIME_VALUE
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