// Copyright 2014 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef V8_COMPILER_TYPER_H_
#define V8_COMPILER_TYPER_H_

#include "src/compiler/graph.h"
#include "src/types.h"

namespace v8 {
namespace internal {

// Forward declarations.
class ZoneTypeCache;

namespace compiler {


class Typer {
 public:
  Typer(Isolate* isolate, Graph* graph,
        Type::FunctionType* function_type = nullptr);
  ~Typer();

  void Run();
  // TODO(bmeurer,jarin): Remove this once we have a notion of "roots" on Graph.
  void Run(const ZoneVector<Node*>& roots);

 private:
  class Visitor;
  class Decorator;

  Graph* graph() const { return graph_; }
  Zone* zone() const { return graph()->zone(); }
  Isolate* isolate() const { return isolate_; }
  Type::FunctionType* function_type() const { return function_type_; }

  Isolate* const isolate_;
  Graph* const graph_;
  Type::FunctionType* function_type_;
  Decorator* decorator_;
  ZoneTypeCache const& cache_;

  Type* singleton_false_;
  Type* singleton_true_;
  Type* signed32ish_;
  Type* unsigned32ish_;
  Type* falsish_;
  Type* truish_;

  DISALLOW_COPY_AND_ASSIGN(Typer);
};

}  // namespace compiler
}  // namespace internal
}  // namespace v8

#endif  // V8_COMPILER_TYPER_H_