/*
* 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.newTypesystem.state.blocks;
import jetbrains.mps.newTypesystem.context.InferenceTypecheckingContext;
import jetbrains.mps.newTypesystem.TypesUtil;
import jetbrains.mps.newTypesystem.state.State;
import org.jetbrains.mps.openapi.model.SNode;
import jetbrains.mps.typesystem.inference.EquationInfo;
import jetbrains.mps.util.CollectionUtil;
import jetbrains.mps.util.Pair;
import java.util.List;
import java.util.Set;
public abstract class RelationBlock extends Block {
protected RelationKind myRelationKind;
protected SNode myLeftNode;
protected SNode myRightNode;
protected EquationInfo myEquationInfo;
public RelationBlock(State state, SNode left, SNode right,
RelationKind kind, EquationInfo equationInfo) {
super(state, equationInfo.getRuleModel(), equationInfo.getRuleId());
myRelationKind = kind;
myLeftNode = left;
myRightNode = right;
myEquationInfo = equationInfo;
}
public RelationKind getRelationKind() {
return myRelationKind;
}
public SNode getLeftNode() {
return myLeftNode;
}
public SNode getRightNode() {
return myRightNode;
}
public EquationInfo getEquationInfo() {
return myEquationInfo;
}
@Override
public String getPresentation() {
return getShortPresentation();
}
public boolean isCheckOnly() {
return !(getState().getTypeCheckingContext() instanceof InferenceTypecheckingContext) && myRelationKind.isCheckOnly();
}
@Override
public String getShortPresentation() {
return getPresentationInternal(myLeftNode, myRightNode);
}
private String getPresentationInternal(SNode left, SNode right) {
return left + myRelationKind.getRelationSign() + right;
}
@Override
public String getExpandedPresentation(State state) {
return getPresentationInternal(state.expand(myLeftNode), state.expand(myRightNode));
}
@Override
public Set<SNode> getInputs() {
return CollectionUtil.set(myLeftNode, myRightNode);
}
@Override
public List<SNode> getVariables(State state) {
List<SNode> variables = TypesUtil.getVariables(myLeftNode, state);
variables.addAll(TypesUtil.getVariables(myRightNode, state));
return variables;
}
public abstract List<Pair<SNode, SNode>> getInputsAndOutputs();
}