src/tint/lang/core/ir/exit.h

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#ifndef SRC_TINT_LANG_CORE_IR_EXIT_H_
#define SRC_TINT_LANG_CORE_IR_EXIT_H_

#include "src/tint/lang/core/ir/terminator.h"
#include "src/tint/utils/containers/const_propagating_ptr.h"

// Forward declarations
namespace tint::core::ir {
class ControlInstruction;
}  // namespace tint::core::ir

namespace tint::core::ir {

/// The base class for all exit terminators.
class Exit : public Castable<Exit, Terminator> {
  public:
    /// Constructor
    /// @param id the instruction id
    explicit Exit(Instruction::Id id);

    ~Exit() override;

    /// @copydoc Value::Destroy
    void Destroy() override;

    /// @return the control instruction that this exit is associated with
    ir::ControlInstruction* ControlInstruction() { return ctrl_inst_; }

    /// @return the control instruction that this exit is associated with
    const ir::ControlInstruction* ControlInstruction() const { return ctrl_inst_; }

  protected:
    /// Sets control instruction that this exit is associated with
    /// @param ctrl_inst the new ControlInstruction that this exit is associated with
    void SetControlInstruction(ir::ControlInstruction* ctrl_inst);

  private:
    ConstPropagatingPtr<ir::ControlInstruction> ctrl_inst_;
};

}  // namespace tint::core::ir

#endif  // SRC_TINT_LANG_CORE_IR_EXIT_H_