1 // Copyright 2011 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_PARSING_DUPLICATE_FINDER_H_
6 #define V8_PARSING_DUPLICATE_FINDER_H_
7 
8 #include <set>
9 
10 namespace v8 {
11 namespace internal {
12 
13 class Scanner;
14 
15 // DuplicateFinder : Helper class to discover duplicate symbols.
16 //
17 // Allocate a DuplicateFinder for each set of symbols you want to check
18 // for duplicates and then pass this instance into
19 // Scanner::IsDuplicateSymbol(..).
20 //
21 // This class only holds the data; all actual logic is in
22 // Scanner::IsDuplicateSymbol.
23 class DuplicateFinder {
24  public:
DuplicateFinder()25   DuplicateFinder() {}
26 
27  private:
28   friend class Scanner;
29 
30   std::set<const void*> known_symbols_;
31 };
32 
33 }  // namespace internal
34 }  // namespace v8
35 
36 #endif  // V8_PARSING_DUPLICATE_FINDER_H_
37