1 files changed, 45 insertions, 0 deletions
diff --git a/deps/v8/src/ast/compile-time-value.h b/deps/v8/src/ast/compile-time-value.h
new file mode 100644
index 0000000000..27351b79cc
--- /dev/null
+++ b/deps/v8/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);
+
+ private:
+  static const int kLiteralTypeSlot = 0;
+  static const int kElementsSlot = 1;
+};
+
+}  // namespace internal
+}  // namespace v8
+
+#endif  // V8_AST_COMPILE_TIME_VALUE