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/*******************************************************************************
* Copyright (c) 2014, 2015 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:
* R.Dvorak and others - QVTo debugger framework
* E.D.Willink - revised API for OCL/QVTi debugger framework
*******************************************************************************/
package org.eclipse.qvtd.debug.evaluator;
import java.util.Map;
import java.util.Stack;
import org.eclipse.emf.ecore.resource.Resource;
import org.eclipse.jdt.annotation.NonNull;
import org.eclipse.jdt.annotation.Nullable;
import org.eclipse.ocl.examples.debug.vm.UnitLocation;
import org.eclipse.ocl.examples.debug.vm.core.VMDebugCore;
import org.eclipse.ocl.examples.debug.vm.evaluator.IVMEnvironmentFactory;
import org.eclipse.ocl.examples.debug.vm.evaluator.IVMEvaluationEnvironment;
import org.eclipse.ocl.examples.debug.vm.utils.ASTBindingHelper;
import org.eclipse.ocl.examples.debug.vm.utils.VMRuntimeException;
import org.eclipse.ocl.examples.debug.vm.utils.VMStackTraceBuilder;
import org.eclipse.ocl.pivot.Element;
import org.eclipse.ocl.pivot.NamedElement;
import org.eclipse.ocl.pivot.Variable;
import org.eclipse.qvtd.pivot.qvtbase.Transformation;
import org.eclipse.qvtd.pivot.qvtimperative.evaluation.QVTiNestedEvaluationEnvironment;
public class QVTiVMNestedEvaluationEnvironment extends QVTiNestedEvaluationEnvironment implements IQVTiVMEvaluationEnvironment
{
protected final @NonNull IVMEnvironmentFactory vmEnvironmentFactory;
private @NonNull Element myCurrentIP;
private @NonNull NamedElement myOperation; // Redundant if final
private final int myStackDepth;
private final long id;
private final @NonNull Stack<StepperEntry> stepperStack = new Stack<StepperEntry>();
public QVTiVMNestedEvaluationEnvironment(@NonNull IQVTiVMEvaluationEnvironment evaluationEnvironment, @NonNull NamedElement executableObject, long id) {
super(evaluationEnvironment, executableObject);
this.vmEnvironmentFactory = evaluationEnvironment.getVMEnvironmentFactory();
myStackDepth = evaluationEnvironment.getDepth() + 1;
this.id = id;
this.myOperation = executableObject;
this.myCurrentIP = executableObject;
}
@Override
public @NonNull IQVTiVMEvaluationEnvironment createClonedEvaluationEnvironment() {
throw new UnsupportedOperationException();
}
@Override
public @NonNull Element getCurrentIP() {
return myCurrentIP;
}
public @NonNull UnitLocation getCurrentLocation() {
// if (myCurrentIP == null) {
// return null;
// }
// else {
int startPosition = ASTBindingHelper.getStartPosition(myCurrentIP);
int endPosition = ASTBindingHelper.getEndPosition(myCurrentIP);
return new UnitLocation(startPosition, endPosition, this, myCurrentIP);
// }
}
public @NonNull VMDebugCore getDebugCore() {
return getVMRootEvaluationEnvironment().getDebugCore();
}
public @NonNull Transformation getDebuggableElement() {
return getVMRootEvaluationEnvironment().getDebuggableElement();
}
@Override
public int getDepth() {
return myStackDepth;
}
// @Override
// public QvtRuntimeException getException() {
// return rootEvaluationEnvironment.getException();
// }
@Override
public long getID() {
return id;
}
@Override
public @NonNull QVTiVMModelManager getModelManager() {
return (QVTiVMModelManager) super.getModelManager();
}
public @NonNull Map<String, Resource> getModelParameterVariables() {
return getVMRootEvaluationEnvironment().getModelParameterVariables();
}
@Override
public @NonNull NamedElement getOperation() {
return myOperation;
}
@Override
@NonNull public Variable getPCVariable() {
return getVMRootEvaluationEnvironment().getPCVariable();
}
@Override
public @Nullable IQVTiVMEvaluationEnvironment getVMParentEvaluationEnvironment() {
return (IQVTiVMEvaluationEnvironment) super.getParentEvaluationEnvironment();
}
@Override
public @NonNull QVTiVMRootEvaluationEnvironment getVMRootEvaluationEnvironment() {
return (QVTiVMRootEvaluationEnvironment) rootEvaluationEnvironment;
}
@Override
public @NonNull Stack<IVMEvaluationEnvironment.StepperEntry> getStepperStack() {
return stepperStack;
}
@Override
public @NonNull IVMEnvironmentFactory getVMEnvironmentFactory() {
return vmEnvironmentFactory;
}
public boolean isDeferredExecution() {
return getVMRootEvaluationEnvironment().isDeferredExecution();
}
public void processDeferredTasks() {
getVMRootEvaluationEnvironment().processDeferredTasks();
}
public @NonNull Element setCurrentIP(@NonNull Element element) {
Element prevValue = myCurrentIP;
myCurrentIP = element;
return prevValue;
}
public void setOperation(@NonNull NamedElement operation) {
this.myCurrentIP = operation;
this.myOperation = operation;
}
public void throwVMException(@NonNull VMRuntimeException exception) throws VMRuntimeException {
try {
getVMRootEvaluationEnvironment().saveThrownException(exception);
exception.setStackVMTrace(new VMStackTraceBuilder(this).buildStackTrace());
} catch (Exception e) {
getDebugCore().error("Failed to build QVT stack trace", e); //$NON-NLS-1$
}
throw exception;
}
}
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