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: AstTypeBounds(Zone * zone)20 explicit AstTypeBounds(Zone* zone) : bounds_map_(zone) {} ~AstTypeBounds()21 ~AstTypeBounds() {} 22 get(Expression * expression)23 AstBounds get(Expression* expression) const { 24 ZoneMap<Expression*, AstBounds>::const_iterator i = 25 bounds_map_.find(expression); 26 return (i != bounds_map_.end()) ? i->second : AstBounds::Unbounded(); 27 } 28 set(Expression * expression,AstBounds bounds)29 void set(Expression* expression, AstBounds bounds) { 30 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_ 41