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

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#ifndef SRC_TINT_LANG_CORE_IR_TERMINATOR_H_
#define SRC_TINT_LANG_CORE_IR_TERMINATOR_H_

#include "src/tint/lang/core/ir/operand_instruction.h"
#include "src/tint/lang/core/ir/value.h"
#include "src/tint/utils/rtti/castable.h"

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

namespace tint::core::ir {

/// The base class of all instructions that terminate a block.
class Terminator : public Castable<Terminator, OperandInstruction<1, 0>> {
  public:
    /// Constructor
    /// @param id the instruction id
    explicit Terminator(Id id);

    ~Terminator() override;

    /// @returns the offset of the arguments in Operands()
    virtual size_t ArgsOperandOffset() const { return 0; }

    /// @returns the call arguments
    tint::Slice<Value* const> Args() { return operands_.Slice().Offset(ArgsOperandOffset()); }

    /// @returns the call arguments
    tint::Slice<const Value* const> Args() const {
        return operands_.Slice().Offset(ArgsOperandOffset());
    }
};

}  // namespace tint::core::ir

#endif  // SRC_TINT_LANG_CORE_IR_TERMINATOR_H_