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// Copyright 2023 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_EXIT_SWITCH_H_
#define SRC_TINT_IR_EXIT_SWITCH_H_
#include "src/tint/ir/exit.h"
#include "src/tint/utils/castable.h"
// Forward declarations
namespace tint::ir {
class Switch;
} // namespace tint::ir
namespace tint::ir {
/// A exit switch instruction.
class ExitSwitch : public utils::Castable<ExitSwitch, Exit> {
public:
/// The base offset in Operands() for the args
static constexpr size_t kArgsOperandOffset = 0;
/// Constructor
/// @param sw the switch being exited
/// @param args the target MultiInBlock arguments
explicit ExitSwitch(ir::Switch* sw, utils::VectorRef<Value*> args = utils::Empty);
~ExitSwitch() override;
/// Re-associates the exit with the given switch instruction
/// @param s the new switch to exit from
void SetSwitch(ir::Switch* s);
/// @returns the switch being exited
ir::Switch* Switch();
};
} // namespace tint::ir
#endif // SRC_TINT_IR_EXIT_SWITCH_H_