/*
* Copyright 2003-2011 JetBrains s.r.o.
*
* 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.
*/
package jetbrains.mps.typesystem.inference;
import jetbrains.mps.util.Pair;
import org.apache.log4j.Logger;
import org.apache.log4j.LogManager;
import org.jetbrains.mps.openapi.model.SNode;
import jetbrains.mps.typesystem.inference.util.StructuralNodeSet;
import java.util.Set;
public abstract class SubtypingManager {
private static final Logger LOG = LogManager.getLogger(SubtypingManager.class);
protected final TypeChecker myTypeChecker;
public SubtypingManager(TypeChecker typeChecker) {
myTypeChecker = typeChecker;
}
public abstract boolean isSubtype(SNode subType, SNode superType);
public abstract boolean isSubtype(SNode subType, SNode superType, boolean isWeak);
public abstract boolean isSubTypeByReplacementRules(SNode subType, SNode superType, boolean isWeak);
public abstract Pair<Boolean, Boolean> isSubTypeByReplacementRulesAuth(SNode subType, SNode superType, boolean isWeak);
public abstract boolean isSuperType(SNode superType, Set<SNode> possibleSubTypes);
public abstract boolean isComparable(SNode left, SNode right, boolean isWeak);
public abstract boolean isComparableByRules(SNode left, SNode right, boolean isWeak);
public abstract StructuralNodeSet<?> collectImmediateSupertypes(SNode term);
public abstract StructuralNodeSet collectImmediateSupertypes(SNode term, boolean isWeak);
public abstract void collectImmediateSuperTypes(SNode term, boolean isWeak, StructuralNodeSet result, TypeCheckingContext context);
// TODO: adapt to the common API style
public abstract Set<SNode> leastCommonSupertypes(Set<SNode> types, boolean isWeak);
/**
* @deprecated use SubtypingUtil
*/
public abstract Set<SNode> mostSpecificTypes(Set<SNode> nodes);
}