// Copyright 2006-2008 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
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//       notice, this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above
//       copyright notice, this list of conditions and the following
//       disclaimer in the documentation and/or other materials provided
//       with the distribution.
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//       contributors may be used to endorse or promote products derived
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//
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

#ifndef V8_REWRITER_H_
#define V8_REWRITER_H_

namespace v8 {
namespace internal {


// Currently, the rewriter takes function literals (only top-level)
// and rewrites them to return the value of the last expression in
// them.
//
// The rewriter adds a (hidden) variable, called .result, to the
// activation, and tries to figure out where it needs to store into
// this variable. If the variable is ever used, we conclude by adding
// a return statement that returns the variable to the body of the
// given function.

class Rewriter {
 public:
  static bool Process(FunctionLiteral* function);
  static bool Optimize(FunctionLiteral* function);
};


} }  // namespace v8::internal

#endif  // V8_REWRITER_H_