|  | // Copyright 2020 The Tint Authors. | 
|  | // | 
|  | // Licensed under the Apache License, Version 2.0 (the "License"); | 
|  | // you may not use this file except in compliance with the License. | 
|  | // You may obtain a copy of the License at | 
|  | // | 
|  | //     http://www.apache.org/licenses/LICENSE-2.0 | 
|  | // | 
|  | // Unless required by applicable law or agreed to in writing, software | 
|  | // distributed under the License is distributed on an "AS IS" BASIS, | 
|  | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | 
|  | // See the License for the specific language governing permissions and | 
|  | // limitations under the License. | 
|  |  | 
|  | #ifndef SRC_AST_DISCARD_STATEMENT_H_ | 
|  | #define SRC_AST_DISCARD_STATEMENT_H_ | 
|  |  | 
|  | #include "src/ast/statement.h" | 
|  |  | 
|  | namespace tint { | 
|  | namespace ast { | 
|  |  | 
|  | /// A discard statement | 
|  | class DiscardStatement : public Castable<DiscardStatement, Statement> { | 
|  | public: | 
|  | /// Constructor | 
|  | /// @param pid the identifier of the program that owns this node | 
|  | /// @param src the source of this node | 
|  | DiscardStatement(ProgramID pid, const Source& src); | 
|  | /// Move constructor | 
|  | DiscardStatement(DiscardStatement&&); | 
|  | ~DiscardStatement() override; | 
|  |  | 
|  | /// Clones this node and all transitive child nodes using the `CloneContext` | 
|  | /// `ctx`. | 
|  | /// @param ctx the clone context | 
|  | /// @return the newly cloned node | 
|  | const DiscardStatement* Clone(CloneContext* ctx) const override; | 
|  | }; | 
|  |  | 
|  | }  // namespace ast | 
|  | }  // namespace tint | 
|  |  | 
|  | #endif  // SRC_AST_DISCARD_STATEMENT_H_ |