Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 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/types.h" |
| 11 | #include "src/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 | Bounds get(Expression* expression) const { |
| 24 | ZoneMap<Expression*, Bounds>::const_iterator i = |
| 25 | bounds_map_.find(expression); |
| 26 | return (i != bounds_map_.end()) ? i->second : Bounds::Unbounded(); |
| 27 | } |
| 28 | |
| 29 | void set(Expression* expression, Bounds bounds) { |
| 30 | bounds_map_[expression] = bounds; |
| 31 | } |
| 32 | |
| 33 | private: |
| 34 | ZoneMap<Expression*, Bounds> bounds_map_; |
| 35 | }; |
| 36 | |
| 37 | } // namespace internal |
| 38 | } // namespace v8 |
| 39 | |
| 40 | #endif // V8_AST_AST_TYPE_BOUNDS_H_ |