| // Copyright 2022 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_TINT_IR_SWITCH_H_ |
| #define SRC_TINT_IR_SWITCH_H_ |
| |
| #include "src/tint/ir/block.h" |
| #include "src/tint/ir/flow_node.h" |
| #include "src/tint/ir/value.h" |
| |
| // Forward declarations |
| namespace tint::ast { |
| class CaseSelector; |
| class SwitchStatement; |
| } // namespace tint::ast |
| |
| namespace tint::ir { |
| |
| /// Flow node representing a switch statement |
| class Switch : public Castable<Switch, FlowNode> { |
| public: |
| /// A case label in the struct |
| struct Case { |
| /// The case selector for this node |
| utils::Vector<const ast::CaseSelector*, 4> selectors; |
| /// The start block for the case block. |
| Block* start_target; |
| }; |
| |
| /// Constructor |
| /// @param stmt the originating ast switch statement |
| explicit Switch(const ast::SwitchStatement* stmt); |
| ~Switch() override; |
| |
| /// The originating switch statment in the AST |
| const ast::SwitchStatement* source; |
| |
| /// The switch merge target |
| Block* merge_target; |
| |
| /// The switch case statements |
| utils::Vector<Case, 4> cases; |
| |
| /// Value holding the condition result |
| const Value* condition = nullptr; |
| }; |
| |
| } // namespace tint::ir |
| |
| #endif // SRC_TINT_IR_SWITCH_H_ |