Line data    Source code

       1             : // Copyright 2014 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_TYPER_H_
       6             : #define V8_COMPILER_TYPER_H_
       7             : 
       8             : #include "src/compiler/graph.h"
       9             : #include "src/compiler/operation-typer.h"
      10             : #include "src/globals.h"
      11             : 
      12             : namespace v8 {
      13             : namespace internal {
      14             : namespace compiler {
      15             : 
      16             : // Forward declarations.
      17             : class LoopVariableOptimizer;
      18             : 
      19             : class V8_EXPORT_PRIVATE Typer {
      20             :  public:
      21             :   enum Flag : uint8_t {
      22             :     kNoFlags = 0,
      23             :     kThisIsReceiver = 1u << 0,       // Parameter this is an Object.
      24             :     kNewTargetIsReceiver = 1u << 1,  // Parameter new.target is an Object.
      25             :   };
      26             :   using Flags = base::Flags<Flag>;
      27             : 
      28             :   Typer(JSHeapBroker* broker, Flags flags, Graph* graph);
      29             :   ~Typer();
      30             : 
      31             :   void Run();
      32             :   // TODO(bmeurer,jarin): Remove this once we have a notion of "roots" on Graph.
      33             :   void Run(const ZoneVector<Node*>& roots,
      34             :            LoopVariableOptimizer* induction_vars);
      35             : 
      36             :  private:
      37             :   class Visitor;
      38             :   class Decorator;
      39             : 
      40             :   Flags flags() const { return flags_; }
      41             :   Graph* graph() const { return graph_; }
      42             :   Zone* zone() const { return graph()->zone(); }
      43      352098 :   OperationTyper* operation_typer() { return &operation_typer_; }
      44             :   JSHeapBroker* broker() const { return broker_; }
      45             : 
      46             :   Flags const flags_;
      47             :   Graph* const graph_;
      48             :   Decorator* decorator_;
      49             :   TypeCache const* cache_;
      50             :   JSHeapBroker* broker_;
      51             :   OperationTyper operation_typer_;
      52             : 
      53             :   Type singleton_false_;
      54             :   Type singleton_true_;
      55             : 
      56             :   DISALLOW_COPY_AND_ASSIGN(Typer);
      57             : };
      58             : 
      59             : DEFINE_OPERATORS_FOR_FLAGS(Typer::Flags)
      60             : 
      61             : }  // namespace compiler
      62             : }  // namespace internal
      63             : }  // namespace v8
      64             : 
      65             : #endif  // V8_COMPILER_TYPER_H_