subprojects/logic/src/main/java/tools/refinery/logic/AbstractValue.java


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/*
 * SPDX-FileCopyrightText: 2024 The Refinery Authors <https://refinery.tools/>
 *
 * SPDX-License-Identifier: EPL-2.0
 */
package tools.refinery.logic;

import org.jetbrains.annotations.Nullable;

public interface AbstractValue<A extends AbstractValue<A, C>, C> {
	@Nullable
	C getConcrete();

	default boolean isConcrete() {
		return getConcrete() == null;
	}

	@Nullable
	C getArbitrary();

	default boolean isError() {
		return getArbitrary() == null;
	}

	A join(A other);

	A meet(A other);

	default boolean isRefinementOf(A other) {
		return equals(meet(other));
	}
}