// Copyright 2023 The Dawn & Tint Authors
//
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// modification, are permitted provided that the following conditions are met:
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// 1. Redistributions of source code must retain the above copyright notice, this
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//    this list of conditions and the following disclaimer in the documentation
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#include "src/tint/lang/core/ir/exit.h"

#include "src/tint/lang/core/ir/control_instruction.h"

TINT_INSTANTIATE_TYPEINFO(tint::core::ir::Exit);

namespace tint::core::ir {

Exit::~Exit() = default;

void Exit::Destroy() {
    SetControlInstruction(nullptr);
    Base::Destroy();
}

void Exit::SetControlInstruction(ir::ControlInstruction* ctrl_inst) {
    if (ctrl_inst_ == ctrl_inst) {
        return;
    }
    if (ctrl_inst_) {
        ctrl_inst_->RemoveExit(this);
    }
    ctrl_inst_ = ctrl_inst;
    if (ctrl_inst_) {
        ctrl_inst_->AddExit(this);
    }
}

}  // namespace tint::core::ir
