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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.compiler.internal.qvts2qvti;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import org.eclipse.jdt.annotation.NonNull;
import org.eclipse.jdt.annotation.Nullable;
import org.eclipse.ocl.pivot.AnyType;
import org.eclipse.ocl.pivot.CollectionType;
import org.eclipse.ocl.pivot.DataType;
import org.eclipse.ocl.pivot.InvalidType;
import org.eclipse.ocl.pivot.Iteration;
import org.eclipse.ocl.pivot.OCLExpression;
import org.eclipse.ocl.pivot.Operation;
import org.eclipse.ocl.pivot.Property;
import org.eclipse.ocl.pivot.Type;
import org.eclipse.ocl.pivot.TypeExp;
import org.eclipse.ocl.pivot.Variable;
import org.eclipse.ocl.pivot.VariableExp;
import org.eclipse.ocl.pivot.VoidType;
import org.eclipse.ocl.pivot.ids.IdResolver;
import org.eclipse.ocl.pivot.internal.complete.StandardLibraryInternal;
import org.eclipse.ocl.pivot.utilities.NameUtil;
import org.eclipse.ocl.pivot.utilities.PivotUtil;
import org.eclipse.qvtd.compiler.internal.qvtp2qvts.ClassDatumAnalysis;
import org.eclipse.qvtd.compiler.internal.qvtp2qvts.Edge;
import org.eclipse.qvtd.compiler.internal.qvtp2qvts.NavigableEdge;
import org.eclipse.qvtd.compiler.internal.qvtp2qvts.Node;
import org.eclipse.qvtd.compiler.internal.qvtp2qvts.NodeConnection;
import org.eclipse.qvtd.compiler.internal.qvtp2qvts.Region;
import org.eclipse.qvtd.compiler.internal.qvtp2qvts.RootCompositionRegion;
import org.eclipse.qvtd.compiler.internal.qvtp2qvts.SchedulerConstants;
import org.eclipse.qvtd.pivot.qvtbase.TypedModel;
import org.eclipse.qvtd.pivot.qvtbase.utilities.QVTbaseUtil;
import org.eclipse.qvtd.pivot.qvtimperative.BufferStatement;
import org.eclipse.qvtd.pivot.qvtimperative.ConnectionVariable;
import org.eclipse.qvtd.pivot.qvtimperative.DeclareStatement;
import org.eclipse.qvtd.pivot.qvtimperative.ImperativeTypedModel;
import org.eclipse.qvtd.pivot.qvtimperative.MappingParameter;
import org.eclipse.qvtd.pivot.qvtimperative.Statement;
public class RootRegion2Mapping extends AbstractScheduledRegion2Mapping
{
/**
* Mapping from the type to allInstances variable.
*/
private final @NonNull Map<@NonNull ClassDatumAnalysis, @NonNull DeclareStatement> classDatumAnalysis2variable = new HashMap<>();
/**
* Mapping from the scheduled Nodes to their QVTi variables.
*/
private final @NonNull Map<@NonNull Node, @NonNull Variable> node2variable = new HashMap<>();
// private Variable rootsVariable = null;
// private final @NonNull Map<@NonNull NodeConnection, @NonNull ConnectionVariable> connection2variable = new HashMap<@NonNull NodeConnection, @NonNull ConnectionVariable>();
public RootRegion2Mapping(@NonNull QVTs2QVTiVisitor visitor, @NonNull RootCompositionRegion region) {
super(visitor, region);
//
// Create domains
//
Set<@NonNull ImperativeTypedModel> checkableTypedModels = new HashSet<>();
for (@NonNull Node node : region.getNodes()) {
ClassDatumAnalysis classDatumAnalysis = node.getClassDatumAnalysis();
org.eclipse.ocl.pivot.Class type = classDatumAnalysis.getCompleteClass().getPrimaryClass();
if (!(type instanceof DataType) && !(type instanceof AnyType) && !(type instanceof VoidType) && !(type instanceof InvalidType)) {
TypedModel qvtpTypedModel = classDatumAnalysis.getTypedModel();
ImperativeTypedModel qvtiTypedModel = visitor.getQVTiTypedModel(qvtpTypedModel);
if (qvtiTypedModel != null) {
checkableTypedModels.add(qvtiTypedModel);
}
}
}
/* for (ConnectionRegion connectionRegion : rootConnections) {
SimpleNode connectionNode = connectionRegion.getConnectionNode();
CompleteClass completeClass = connectionNode.getCompleteClass();
// NullLiteralExp initExpression = ValueUtil.createSetOfEach((CollectionTypeId)completeClass.getPrimaryClass().getTypeId());
CollectionLiteralExp initExpression = PivotFactory.eINSTANCE.createCollectionLiteralExp();
CollectionType collectionType = visitor.getEnvironmentFactory().getCompleteEnvironment().getSetType(completeClass.getPrimaryClass(), true, null, null);
initExpression.setType(collectionType);
initExpression.setKind(TypeUtil.getCollectionKind(collectionType));
connection2variable.put(connectionRegion, createConnectionVariable(mapping.getBottomPattern(), connectionNode, initExpression));
} */
}
private @NonNull OCLExpression createObjectsOfKindExpression(@NonNull Node resultNode) { // FIXME compute input typed model
ClassDatumAnalysis classDatumAnalysis = resultNode.getClassDatumAnalysis();
DeclareStatement allInstancesVariable = classDatumAnalysis2variable.get(classDatumAnalysis);
if (allInstancesVariable == null) {
Type collectionType = classDatumAnalysis.getCompleteClass().getPrimaryClass();
Type elementType = ((CollectionType)collectionType).getElementType();
assert elementType != null;
assert !(elementType instanceof CollectionType);
StandardLibraryInternal standardLibrary = (StandardLibraryInternal)visitor.getStandardLibrary();
ImperativeTypedModel typedModel = visitor.getQVTiTypedModel(classDatumAnalysis.getTypedModel());
assert typedModel != null;
Variable contextVariable = QVTbaseUtil.getContextVariable(standardLibrary, typedModel);
VariableExp modelExp = helper.createVariableExp(contextVariable);
TypeExp typeExp = helper.createTypeExp(elementType);
OCLExpression asSource = helper.createOperationCallExp(modelExp, "objectsOfKind", typeExp);
Type sourceType = asSource.getType();
assert sourceType != null;
String safeName = getSafeName(resultNode);
allInstancesVariable = helper.createDeclareStatement(safeName, sourceType, true, asSource);
mapping.getOwnedStatements().add(allInstancesVariable);
classDatumAnalysis2variable.put(classDatumAnalysis, allInstancesVariable);
}
return helper.createVariableExp(allInstancesVariable);
}
private @NonNull ConnectionVariable createRootConnectionVariable(@NonNull String name, @NonNull Type type, @Nullable OCLExpression initExpression) {
// Type variableType = visitor.getEnvironmentFactory().getCompleteEnvironment().getSetType(node.getCompleteClass().getPrimaryClass(), true, null, null);
// assert variableType != null;
BufferStatement variable = helper.createBufferStatement(getSafeName(name), type, true, initExpression);
mapping.getOwnedStatements().add(variable);
// Variable oldVariable = node2variable.put(node, variable);
// assert oldVariable == null;
return variable;
}
private void createRootConnectionVariables() {
List<@NonNull NodeConnection> rootConnections = new ArrayList<@NonNull NodeConnection>(region.getRootConnections());
Collections.sort(rootConnections, NameUtil.NAMEABLE_COMPARATOR);
for (@NonNull NodeConnection rootConnection : rootConnections) {
Type commonType = getConnectionSourcesType(rootConnection);
Node regionNode = rootConnection.basicGetSource(region);
String name = rootConnection.getName();
assert name != null;
if (regionNode != null) {
OCLExpression initExpression = createObjectsOfKindExpression(regionNode);
List<@NonNull Edge> incomingEdges = regionNode.getIncomingEdges();
switch (incomingEdges.size()) {
case 0: break;
case 1: initExpression = getFilteredExpression(initExpression, (NavigableEdge) incomingEdges.get(0)); break;
default: assert false;
}
connection2variable.put(rootConnection, createRootConnectionVariable(name, commonType, initExpression));
}
else if (commonType instanceof CollectionType) {
connection2variable.put(rootConnection, createRootConnectionVariable(name, commonType, null));
}
else {
CollectionType setType = visitor.getEnvironmentFactory().getCompleteEnvironment().getSetType(commonType, true, null, null);
connection2variable.put(rootConnection, createRootConnectionVariable(name, setType, null));
}
}
}
@Override
protected @NonNull OCLExpression createSelectByKind(@NonNull Node resultNode) {
throw new UnsupportedOperationException();
/* Variable resultVariable = node2variable.get(resultNode);
if (resultVariable == null) {
OCLExpression asSource = getRootsVariable(resultNode);
CompleteClass sourceCompleteClass = resultNode.getCompleteClass();
CollectionType sourceCollectionType = (CollectionType) sourceCompleteClass.getPrimaryClass();
Type elementType = sourceCollectionType.getElementType();
assert elementType != null;
CompleteClass sourceElementClass = visitor.getEnvironmentFactory().getCompleteModel().getCompleteClass(elementType);
OCLExpression asTypeExp = createTypeExp(sourceElementClass);
OCLExpression selectExp = createOperationCallExp(asSource, getSelectByKindOperation(), asTypeExp);
resultVariable = PivotUtil.createVariable(resultNode.getName(), selectExp);
mapping.getBottomPattern().getVariable().add(resultVariable);
node2variable.put(resultNode, resultVariable);
}
return helper.createVariableExp(resultVariable); */
}
@Override
public void createStatements() {
// BottomPattern bottomPattern = mapping.getBottomPattern();
createRootConnectionVariables();
/* //
// Cache the children in a middle bottom pattern variable.
//
OCLExpression parentExpression = createVariableExp(headNode);
OCLExpression initExpression = PivotUtil.createNavigationCallExp(parentExpression, property);
Type asType = initExpression.getType();
if (!(asType instanceof CollectionType)) {
initExpression = createOclAsSetCallExp(initExpression);
asType = initExpression.getType();
}
assert asType != null;
Variable childrenVariable = PivotUtil.createVariable(getSafeName("allChildren"), asType, true, initExpression);
mapping.getBottomPattern().getVariable().add(childrenVariable); */
//
// Create union assignments for connections.
//
// if (connection2variable != null) {
/* Operation asOperation = NameUtil.getNameable(visitor.getStandardLibrary().getCollectionType().getOwnedOperations(), "union");
for (Node node : region.getNodes()) {
if (node.isComposed()) {
for (InterRegionEdge edge : node.getOutgoingPassedBindingEdges()) {
Node connectionNode = edge.getTarget();
Region connectionRegion = connectionNode.getRegion();
Variable connectionVariable = connection2variable.get(connectionRegion);
if (connectionVariable != null) {
OCLExpression collection1 = helper.createVariableExp(connectionVariable);
OCLExpression collection2 = createSelectByKind(node);
OCLExpression union = createOperationCallExp(collection1, asOperation, collection2);
VariableAssignment variableAssignment = QVTcoreBaseFactory.eINSTANCE.createVariableAssignment();
variableAssignment.setTargetVariable(connectionVariable);
variableAssignment.setValue(union);
bottomPattern.getAssignment().add(variableAssignment);
}
}
}
}
bottomPattern.getVariable().addAll(connection2variable.values());
// } */
/* ChainNode chain = visitor.getChain(region);
for (ChainNode child : chain.getChildren()) {
Region calledRegion = child.getRegion();
if (!calledRegion.isConnectionRegion()) {
mappingStatement = createCalls(mappingStatement, calledRegion);
}
else if (Iterables.isEmpty(child.getChildren())) {
// mappingStatement = createCalls(mappingStatement, calledRegion);
}
else {
assert calledRegion.isConnectionRegion();
assert !Iterables.isEmpty(child.getChildren());
for (ChainNode connectionChild : child.getChildren()) {
Region connectionedRegion = connectionChild.getRegion();
assert !connectionedRegion.isConnectionRegion();
mappingStatement = createCalls(mappingStatement, connectionedRegion);
}
}
} */
List<Statement> ownedStatements = mapping.getOwnedStatements();
for (@NonNull Region callableRegion : region.getCallableChildren()) {
if (isInstall(callableRegion)) {
ownedStatements.add(createInstall(callableRegion));
}
else {
ownedStatements.add(createCall(callableRegion, null));
}
}
}
private @NonNull OCLExpression getFilteredExpression(@NonNull OCLExpression initExpression, @NonNull NavigableEdge edge) {
Type collectionType = initExpression.getType();
assert collectionType != null;
Type elementType = ((CollectionType)collectionType).getElementType();
assert elementType != null;
@NonNull Variable asIterator = PivotUtil.createVariable("i", elementType, true, null);
Property child2parentProperty = edge.getProperty().getOpposite();
assert child2parentProperty != null;
OCLExpression propertyCallExp = helper.createNavigationCallExp(helper.createVariableExp(asIterator), child2parentProperty);
if (edge.getSource().isExplicitNull()) {
OCLExpression equalsExp = helper.createOperationCallExp(propertyCallExp, "=", helper.createNullLiteralExp());
initExpression = helper.createIteratorExp(initExpression, getSelectIteration(), Collections.singletonList(asIterator), equalsExp);
}
else {
// OCLExpression equalsExp = helper.createOperationCallExp(propertyCallExp, getOclIsKindOfOperation(), createTypeExp());
OCLExpression notEqualsExp = helper.createOperationCallExp(propertyCallExp, "<>", helper.createNullLiteralExp());
initExpression = helper.createIteratorExp(initExpression, getSelectIteration(), Collections.singletonList(asIterator), notEqualsExp);
}
return initExpression;
}
@Override
public @NonNull List<@NonNull Node> getGuardNodes() {
return SchedulerConstants.EMPTY_NODE_LIST;
}
@Override
public @NonNull MappingParameter getGuardVariable(@NonNull Node node) {
Variable variable = node2variable.get(node);
assert variable != null;
return (MappingParameter) variable;
}
/* private @NonNull OCLExpression getRootsVariable(@NonNull Node resultNode) { // FIXME compute input typed model
Variable rootsVariable2 = rootsVariable;
if (rootsVariable2 == null) {
StandardLibraryInternal standardLibrary = (StandardLibraryInternal)visitor.getStandardLibrary();
TypedModel typedModel = visitor.getQVTiTypedModel(resultNode.getClassDatumAnalysis().getTypedModel());
assert typedModel != null;
Variable contextVariable = QVTbaseUtil.getContextVariable(standardLibrary, typedModel);
VariableExp modelExp = helper.createVariableExp(contextVariable);
OCLExpression asSource = createOperationCallExp(modelExp, getRootObjectsOperation());
rootsVariable = rootsVariable2 = PivotUtil.createVariable("roots", asSource);
mapping.getBottomPattern().getVariable().add(rootsVariable2);
}
return helper.createVariableExp(rootsVariable2);
} */
protected @NonNull Iteration getSelectIteration() {
org.eclipse.ocl.pivot.Class collectionType = ((StandardLibraryInternal)visitor.getStandardLibrary()).getSetType();
Operation selectIteration = NameUtil.getNameable(collectionType.getOwnedOperations(), "select");
assert selectIteration != null;
return (Iteration) selectIteration;
}
protected Type getType(@NonNull IdResolver idResolver, @NonNull NodeConnection rootConnection) {
Type commonType = null;
for (@NonNull Node node : rootConnection.getSources()) {
Type nodeType = node.getCompleteClass().getPrimaryClass();
if (commonType == null) {
commonType = nodeType;
}
else {
commonType = commonType.getCommonType(idResolver, nodeType);
}
}
return commonType;
}
protected boolean isInstall(@NonNull Region calledRegion) {
AbstractRegion2Mapping calledRegion2Mapping = visitor.getRegion2Mapping(calledRegion);
for (@NonNull Node calledGuardNode : calledRegion2Mapping.getGuardNodes()) {
NodeConnection callingConnection = calledGuardNode.getIncomingPassedConnection();
if (callingConnection == null) {
return false;
}
}
return true;
}
}
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