New adjustment method for Courgette....

courgette/adjustment_method.h

 // Copyright (c) 2009 The Chromium 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 COURGETTE_ADJUSTMENT_METHOD_H_
 #define COURGETTE_ADJUSTMENT_METHOD_H_
 
 #include "base/basictypes.h"
 
 namespace courgette {
 
 class AssemblyProgram;
 
 class AdjustmentMethod {
  public:
   // Factory methods for making adjusters.
 
   // Returns the adjustment method used in production.
-  static AdjustmentMethod* MakeProductionAdjustmentMethod();
+  static AdjustmentMethod* MakeProductionAdjustmentMethod() {
+    return MakeShingleAdjustmentMethod();
+  }
 
   // Returns and adjustement method that makes no adjustments.
   static AdjustmentMethod* MakeNullAdjustmentMethod();
 
+  // Returns the original adjustment method.
+  static AdjustmentMethod* MakeTrieAdjustmentMethod();
+
+  // Returns the new shingle tiling adjustment method.
+  static AdjustmentMethod* MakeShingleAdjustmentMethod();
+
+  // AdjustmentMethod interface:
 
   // Adjusts |program| to increase similarity to |model|.  |program| can be
   // changed in any way provided that it still produces the same output when
   // assembled.
   virtual bool Adjust(const AssemblyProgram& model,
                       AssemblyProgram* program) = 0;
 
   // Deletes 'this' adjustment method.
   virtual void Destroy();
 
  protected:
   AdjustmentMethod() {}
   virtual ~AdjustmentMethod() {}
 
   DISALLOW_COPY_AND_ASSIGN(AdjustmentMethod);
 };
 
 }  // namespace courgette
 #endif  // COURGETTE_ADJUSTMENT_METHOD_H_