Line data    Source code

       1             : // Copyright 2017 the V8 project authors. All rights reserved.
       2             : // Use of this source code is governed by a BSD-style license that can be
       3             : // found in the LICENSE file.
       4             : 
       5             : #ifndef V8_FIND_AND_REPLACE_PATTERN_H_
       6             : #define V8_FIND_AND_REPLACE_PATTERN_H_
       7             : 
       8             : #include "src/handles.h"
       9             : 
      10             : namespace v8 {
      11             : namespace internal {
      12             : 
      13             : class Map;
      14             : class Object;
      15             : 
      16             : class FindAndReplacePattern {
      17             :  public:
      18      421416 :   FindAndReplacePattern() : count_(0) {}
      19             :   void Add(Handle<Map> map_to_find, Handle<HeapObject> obj_to_replace) {
      20             :     DCHECK(count_ < kMaxCount);
      21       46824 :     find_[count_] = map_to_find;
      22       46824 :     replace_[count_] = obj_to_replace;
      23       46824 :     ++count_;
      24             :   }
      25             : 
      26             :  private:
      27             :   static const int kMaxCount = 4;
      28             :   int count_;
      29             :   Handle<Map> find_[kMaxCount];
      30             :   Handle<HeapObject> replace_[kMaxCount];
      31             :   friend class Code;
      32             : };
      33             : 
      34             : }  // namespace internal
      35             : }  // namespace v8
      36             : 
      37             : #endif  // V8_FIND_AND_REPLACE_PATTERN_H_