| Index: src/ast/compile-time-value.h
|
| diff --git a/src/ast/compile-time-value.h b/src/ast/compile-time-value.h
|
| new file mode 100644
|
| index 0000000000000000000000000000000000000000..27351b79cc0b3784063b3757c46c5f26170e8c0c
|
| --- /dev/null
|
| +++ b/src/ast/compile-time-value.h
|
| @@ -0,0 +1,45 @@
|
| +// 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 array of a compile time value returned by GetValue().
|
| + static Handle<FixedArray> GetElements(Handle<FixedArray> value);
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| +
|
| + private:
|
| + static const int kLiteralTypeSlot = 0;
|
| + static const int kElementsSlot = 1;
|
| +};
|
| +
|
| +} // namespace internal
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| +} // namespace v8
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| +
|
| +#endif // V8_AST_COMPILE_TIME_VALUE
|
|
|