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/*******************************************************************************
* Copyright (c) 2015, 2016 Willink Transformations and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* E.D.Willink - initial API and implementation
*******************************************************************************/
package org.eclipse.qvtd.pivot.qvtimperative.analysis;
import org.eclipse.jdt.annotation.NonNull;
import org.eclipse.ocl.pivot.Element;
import org.eclipse.ocl.pivot.OCLExpression;
import org.eclipse.ocl.pivot.OperationCallExp;
import org.eclipse.ocl.pivot.Type;
import org.eclipse.ocl.pivot.Variable;
import org.eclipse.ocl.pivot.VariableExp;
import org.eclipse.ocl.pivot.internal.complete.StandardLibraryInternal;
import org.eclipse.ocl.pivot.utilities.EnvironmentFactory;
import org.eclipse.qvtd.pivot.qvtbase.analysis.DomainUsage;
import org.eclipse.qvtd.pivot.qvtimperative.AddStatement;
import org.eclipse.qvtd.pivot.qvtimperative.ConnectionVariable;
import org.eclipse.qvtd.pivot.qvtimperative.ImperativeModel;
import org.eclipse.qvtd.pivot.qvtimperative.Mapping;
import org.eclipse.qvtd.pivot.qvtimperative.MappingCall;
import org.eclipse.qvtd.pivot.qvtimperative.MappingCallBinding;
import org.eclipse.qvtd.pivot.qvtimperative.MappingLoop;
import org.eclipse.qvtd.pivot.qvtimperative.MappingStatement;
import org.eclipse.qvtd.pivot.qvtimperative.Statement;
import org.eclipse.qvtd.pivot.qvtimperative.VariablePredicate;
import org.eclipse.qvtd.pivot.qvtimperative.util.QVTimperativeVisitor;
/**
* A QVTimperativeDomainUsageAnalysis identifies a constrained domain result from the DomainUsageAnalysis of an OCL AST node.
*/
public class QVTimperativeDomainUsageAnalysis extends RootDomainUsageAnalysis implements QVTimperativeVisitor<org.eclipse.qvtd.pivot.qvtbase.analysis.DomainUsage>
{
public QVTimperativeDomainUsageAnalysis(@NonNull EnvironmentFactory environmentFactory) {
super(environmentFactory);
}
@Override
public void setUsage(@NonNull Element element, @NonNull DomainUsage newUsage) {
super.setUsage(element, newUsage);
}
@Override
public @NonNull DomainUsage visitAddStatement(@NonNull AddStatement object) {
DomainUsage valueUsage = visit(object.getValue());
DomainUsage variableUsage = visit(object.getTargetVariable());
return intersection(variableUsage, valueUsage);
}
@Override
public @NonNull DomainUsage visitConnectionVariable(@NonNull ConnectionVariable object) {
return visitVariable(object);
}
@Override
public @NonNull DomainUsage visitImperativeModel(@NonNull ImperativeModel object) {
return visitBaseModel(object);
}
@Override
public @NonNull DomainUsage visitMapping(@NonNull Mapping object) {
DomainUsage usage = getNoneUsage();
setUsage(object, usage);
visitRule(object);
visit(object.getGuardPattern());
visit(object.getBottomPattern());
for (Statement mappingStatement : object.getOwnedStatements()) {
visit(mappingStatement);
}
return usage;
}
@Override
public @NonNull DomainUsage visitMappingCall(@NonNull MappingCall object) {
for (MappingCallBinding mappingCallBinding : object.getBinding()) {
visit(mappingCallBinding);
}
return getNoneUsage();
}
@Override
public @NonNull DomainUsage visitMappingCallBinding(@NonNull MappingCallBinding object) {
DomainUsage valueUsage = visit(object.getValue());
DomainUsage variableUsage = visit(object.getBoundVariable());
return intersection(valueUsage, variableUsage);
}
@Override
public @NonNull DomainUsage visitMappingLoop(@NonNull MappingLoop object) {
DomainUsage sourceUsage = visit(object.getOwnedSource());
for (Variable iterator : object.getOwnedIterators()) {
if (iterator != null) {
setUsage(iterator, sourceUsage);
}
}
for (MappingStatement mappingStatement : object.getOwnedMappingStatements()) {
visit(mappingStatement);
}
return getNoneUsage();
}
@Override
public @NonNull DomainUsage visitMappingStatement(@NonNull MappingStatement object) {
return visitStatement(object);
}
@Override
public @NonNull DomainUsage visitOperationCallExp(@NonNull OperationCallExp object) {
String operationName = object.getReferredOperation().getName();
if ("objectsOfKind".equals(operationName) || "objectsOfType".equals(operationName)) { // FIXME stronger test
for (OCLExpression argument : object.getOwnedArguments()) {
visit(argument);
}
return visit(object.getOwnedSource());
}
return super.visitOperationCallExp(object);
}
@Override
public @NonNull DomainUsage visitStatement(@NonNull Statement object) {
return visiting(object);
}
@Override
public @NonNull DomainUsage visitVariableExp(@NonNull VariableExp object) {
StandardLibraryInternal standardLibrary = (StandardLibraryInternal) context.getStandardLibrary();
Type transformationType = standardLibrary.getLibraryType("Transformation");
if ((transformationType != null) && object.getType().conformsTo(standardLibrary, transformationType)) {
return getNoneUsage();
}
return super.visitVariableExp(object);
}
@Override
public @NonNull DomainUsage visitVariablePredicate(@NonNull VariablePredicate object) {
return visitPredicate(object);
}
}
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