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      1 // Copyright 2015 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_COMPILER_TYPE_HINT_ANALYZER_H_
      6 #define V8_COMPILER_TYPE_HINT_ANALYZER_H_
      7 
      8 #include "src/compiler/type-hints.h"
      9 #include "src/handles.h"
     10 #include "src/zone-containers.h"
     11 
     12 namespace v8 {
     13 namespace internal {
     14 namespace compiler {
     15 
     16 // The result of analyzing type hints.
     17 class TypeHintAnalysis final : public ZoneObject {
     18  public:
     19   typedef ZoneMap<TypeFeedbackId, Handle<Code>> Infos;
     20 
     21   explicit TypeHintAnalysis(Infos const& infos) : infos_(infos) {}
     22 
     23   bool GetBinaryOperationHints(TypeFeedbackId id,
     24                                BinaryOperationHints* hints) const;
     25   bool GetToBooleanHints(TypeFeedbackId id, ToBooleanHints* hints) const;
     26 
     27  private:
     28   Infos const infos_;
     29 };
     30 
     31 
     32 // The class that performs type hint analysis on the fullcodegen code object.
     33 class TypeHintAnalyzer final {
     34  public:
     35   explicit TypeHintAnalyzer(Zone* zone) : zone_(zone) {}
     36 
     37   TypeHintAnalysis* Analyze(Handle<Code> code);
     38 
     39  private:
     40   Zone* zone() const { return zone_; }
     41 
     42   Zone* const zone_;
     43 
     44   DISALLOW_COPY_AND_ASSIGN(TypeHintAnalyzer);
     45 };
     46 
     47 }  // namespace compiler
     48 }  // namespace internal
     49 }  // namespace v8
     50 
     51 #endif  // V8_COMPILER_TYPE_HINT_ANALYZER_H_
     52