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_RETURN_STATEMENT_H_ 16 #define SRC_AST_RETURN_STATEMENT_H_ 17 18 #include "src/ast/expression.h" 19 #include "src/ast/statement.h" 20 21 namespace tint { 22 namespace ast { 23 24 /// A return statement 25 class ReturnStatement : public Castable<ReturnStatement, Statement> { 26 public: 27 /// Constructor 28 /// @param pid the identifier of the program that owns this node 29 /// @param src the source of this node 30 ReturnStatement(ProgramID pid, const Source& src); 31 32 /// Constructor 33 /// @param pid the identifier of the program that owns this node 34 /// @param src the source of this node 35 /// @param value the return value 36 ReturnStatement(ProgramID pid, const Source& src, const Expression* value); 37 /// Move constructor 38 ReturnStatement(ReturnStatement&&); 39 ~ReturnStatement() override; 40 41 /// Clones this node and all transitive child nodes using the `CloneContext` 42 /// `ctx`. 43 /// @param ctx the clone context 44 /// @return the newly cloned node 45 const ReturnStatement* Clone(CloneContext* ctx) const override; 46 47 /// The value returned. May be null. 48 const Expression* const value; 49 }; 50 51 } // namespace ast 52 } // namespace tint 53 54 #endif // SRC_AST_RETURN_STATEMENT_H_ 55