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// 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_