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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, Zone* zone)
     22       : infos_(infos), zone_(zone) {}
     23 
     24   bool GetBinaryOperationHints(TypeFeedbackId id,
     25                                BinaryOperationHints* hints) const;
     26   bool GetCompareOperationHints(TypeFeedbackId id,
     27                                 CompareOperationHints* hints) const;
     28   bool GetToBooleanHints(TypeFeedbackId id, ToBooleanHints* hints) const;
     29 
     30  private:
     31   Zone* zone() const { return zone_; }
     32 
     33   Infos const infos_;
     34   Zone* zone_;
     35 };
     36 
     37 
     38 // The class that performs type hint analysis on the fullcodegen code object.
     39 class TypeHintAnalyzer final {
     40  public:
     41   explicit TypeHintAnalyzer(Zone* zone) : zone_(zone) {}
     42 
     43   TypeHintAnalysis* Analyze(Handle<Code> code);
     44 
     45  private:
     46   Zone* zone() const { return zone_; }
     47 
     48   Zone* const zone_;
     49 
     50   DISALLOW_COPY_AND_ASSIGN(TypeHintAnalyzer);
     51 };
     52 
     53 }  // namespace compiler
     54 }  // namespace internal
     55 }  // namespace v8
     56 
     57 #endif  // V8_COMPILER_TYPE_HINT_ANALYZER_H_
     58