Line data    Source code

       1             : // Copyright 2016 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             : // A container to associate type bounds with AST Expression nodes.
       6             : 
       7             : #ifndef V8_AST_AST_TYPE_BOUNDS_H_
       8             : #define V8_AST_AST_TYPE_BOUNDS_H_
       9             : 
      10             : #include "src/ast/ast-types.h"
      11             : #include "src/zone/zone-containers.h"
      12             : 
      13             : namespace v8 {
      14             : namespace internal {
      15             : 
      16             : class Expression;
      17             : 
      18             : class AstTypeBounds {
      19             :  public:
      20             :   explicit AstTypeBounds(Zone* zone) : bounds_map_(zone) {}
      21             :   ~AstTypeBounds() {}
      22             : 
      23    14048805 :   AstBounds get(Expression* expression) const {
      24             :     ZoneMap<Expression*, AstBounds>::const_iterator i =
      25             :         bounds_map_.find(expression);
      26    14048805 :     return (i != bounds_map_.end()) ? i->second : AstBounds::Unbounded();
      27             :   }
      28             : 
      29             :   void set(Expression* expression, AstBounds bounds) {
      30    10133135 :     bounds_map_[expression] = bounds;
      31             :   }
      32             : 
      33             :  private:
      34             :   ZoneMap<Expression*, AstBounds> bounds_map_;
      35             : };
      36             : 
      37             : }  // namespace internal
      38             : }  // namespace v8
      39             : 
      40             : #endif  // V8_AST_AST_TYPE_BOUNDS_H_