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_SWITCH_STATEMENT_H_ 16 #define SRC_AST_SWITCH_STATEMENT_H_ 17 18 #include "src/ast/case_statement.h" 19 #include "src/ast/expression.h" 20 21 namespace tint { 22 namespace ast { 23 24 /// A switch statement 25 class SwitchStatement : public Castable<SwitchStatement, 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 /// @param condition the switch condition 31 /// @param body the switch body 32 SwitchStatement(ProgramID pid, 33 const Source& src, 34 const Expression* condition, 35 CaseStatementList body); 36 /// Move constructor 37 SwitchStatement(SwitchStatement&&); 38 ~SwitchStatement() override; 39 40 /// @returns true if this is a default statement IsDefault()41 bool IsDefault() const { return condition == nullptr; } 42 43 /// Clones this node and all transitive child nodes using the `CloneContext` 44 /// `ctx`. 45 /// @param ctx the clone context 46 /// @return the newly cloned node 47 const SwitchStatement* Clone(CloneContext* ctx) const override; 48 49 /// The switch condition or nullptr if none set 50 const Expression* const condition; 51 52 /// The Switch body 53 const CaseStatementList body; 54 SwitchStatement(const SwitchStatement&) = delete; 55 }; 56 57 } // namespace ast 58 } // namespace tint 59 60 #endif // SRC_AST_SWITCH_STATEMENT_H_ 61