1 // Copyright 2020 The Tint Authors. 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 #ifndef SRC_AST_DISCARD_STATEMENT_H_ 16 #define SRC_AST_DISCARD_STATEMENT_H_ 17 18 #include "src/ast/statement.h" 19 20 namespace tint { 21 namespace ast { 22 23 /// A discard statement 24 class DiscardStatement : public Castable<DiscardStatement, Statement> { 25 public: 26 /// Constructor 27 /// @param pid the identifier of the program that owns this node 28 /// @param src the source of this node 29 DiscardStatement(ProgramID pid, const Source& src); 30 /// Move constructor 31 DiscardStatement(DiscardStatement&&); 32 ~DiscardStatement() override; 33 34 /// Clones this node and all transitive child nodes using the `CloneContext` 35 /// `ctx`. 36 /// @param ctx the clone context 37 /// @return the newly cloned node 38 const DiscardStatement* Clone(CloneContext* ctx) const override; 39 }; 40 41 } // namespace ast 42 } // namespace tint 43 44 #endif // SRC_AST_DISCARD_STATEMENT_H_ 45