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package org.etsi.mts.tdl.scoping;
import org.eclipse.emf.common.util.BasicEList;
import org.eclipse.emf.common.util.EList;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.EReference;
import org.eclipse.xtext.naming.IQualifiedNameConverter;
import org.eclipse.xtext.naming.QualifiedName;
import org.eclipse.xtext.nodemodel.ICompositeNode;
import org.eclipse.xtext.nodemodel.util.NodeModelUtils;
import org.eclipse.xtext.scoping.IScope;
import org.eclipse.xtext.scoping.Scopes;
import org.eclipse.xtext.scoping.impl.AbstractDeclarativeScopeProvider;
import org.etsi.mts.tdl.Action;
import org.etsi.mts.tdl.ActionReference;
import org.etsi.mts.tdl.Assignment;
import org.etsi.mts.tdl.Behaviour;
import org.etsi.mts.tdl.Block;
import org.etsi.mts.tdl.ComponentInstance;
import org.etsi.mts.tdl.ComponentInstanceBinding;
import org.etsi.mts.tdl.Connection;
import org.etsi.mts.tdl.DataElementMapping;
import org.etsi.mts.tdl.DataInstanceUse;
import org.etsi.mts.tdl.DataType;
import org.etsi.mts.tdl.DataUse;
import org.etsi.mts.tdl.Element;
import org.etsi.mts.tdl.ElementImport;
import org.etsi.mts.tdl.Extension;
import org.etsi.mts.tdl.FormalParameterUse;
import org.etsi.mts.tdl.FunctionCall;
import org.etsi.mts.tdl.GateInstance;
import org.etsi.mts.tdl.GateReference;
import org.etsi.mts.tdl.LocalExpression;
import org.etsi.mts.tdl.MemberAssignment;
import org.etsi.mts.tdl.MemberReference;
import org.etsi.mts.tdl.Message;
import org.etsi.mts.tdl.Package;
import org.etsi.mts.tdl.PackageableElement;
import org.etsi.mts.tdl.Parameter;
import org.etsi.mts.tdl.ParameterBinding;
import org.etsi.mts.tdl.ParameterMapping;
import org.etsi.mts.tdl.ProcedureCall;
import org.etsi.mts.tdl.SimpleDataInstance;
import org.etsi.mts.tdl.SimpleDataType;
import org.etsi.mts.tdl.StructuredDataInstance;
import org.etsi.mts.tdl.StructuredDataType;
import org.etsi.mts.tdl.Target;
import org.etsi.mts.tdl.TestConfiguration;
import org.etsi.mts.tdl.TestDescription;
import org.etsi.mts.tdl.TestDescriptionReference;
import org.etsi.mts.tdl.Timer;
import org.etsi.mts.tdl.TimerOperation;
import org.etsi.mts.tdl.ValueAssignment;
import org.etsi.mts.tdl.Variable;
import org.etsi.mts.tdl.VariableUse;
import org.etsi.mts.tdl.tdlPackage;
import org.etsi.mts.tdl.structuredobjectives.StructuredTestObjective;
import com.google.common.base.Function;
import com.google.inject.Inject;
/**
* This class contains custom scoping description.
*
* see : http://www.eclipse.org/Xtext/documentation/latest/xtext.html#scoping on
* how and when to use it
*
*/
public class TDLScopeProvider extends AbstractDeclarativeScopeProvider {
@Inject
private IQualifiedNameConverter qualifiedNameConverter;
@Override
public IScope getScope(EObject context, EReference reference) {
if (PackageableElement.class.isAssignableFrom(reference.getEType().getInstanceClass())
&& !(context instanceof ElementImport)) {
EList<EObject> elements = getScopedElementsOfType(context, reference.getEType().getInstanceClass());
return Scopes.scopeFor(elements);
}
if (reference.getEType().getInstanceClass() == GateInstance.class) {
if (context instanceof GateReference) {
GateReference gate = (GateReference) context;
if (gate.getComponent().getType()!=null) {
IScope scope = Scopes.scopeFor(gate.getComponent().getType().allGates());
return scope;
}
}
} else if (reference.getEType().getInstanceClass() == ComponentInstance.class) {
if (context instanceof Behaviour || context instanceof Block || context instanceof LocalExpression || context instanceof VariableUse) {
TestDescription testDescription = getTestDescription((Element) context);
if (testDescription!=null) {
TestConfiguration configuration = testDescription.getTestConfiguration();
IScope scope = Scopes.scopeFor(configuration.getComponentInstance());
return scope;
}
} else if (context instanceof GateReference) {
TestConfiguration configuration = getTestConfiguration((Element) context);
EList<ComponentInstance> components = configuration.getComponentInstance();
IScope scope = Scopes.scopeFor(components);
return scope;
} else if (context instanceof ComponentInstanceBinding) {
//assume actual
TestDescription testDescription = getTestDescription((Element) context);
if (reference.getFeatureID() == tdlPackage.COMPONENT_INSTANCE_BINDING__FORMAL_COMPONENT) {
testDescription = ((TestDescriptionReference)context.eContainer()).getTestDescription();
}
TestConfiguration configuration = testDescription.getTestConfiguration();
EList<ComponentInstance> components = configuration.getComponentInstance();
IScope scope = Scopes.scopeFor(components);
return scope;
}
} else if (reference.getEType().getInstanceClass() == GateReference.class) {
//TODO: safety checks in case invalid configuration is specified
//TODO: only suggest connected gates as targets?
if (context instanceof Behaviour || context instanceof Target || context instanceof Block) {
TestConfiguration configuration = getTestDescription((Element) context).getTestConfiguration();
EList<EObject> elements = new BasicEList<>();
for (Connection c : configuration.getConnection()) {
if (context instanceof Message) {
//TODO: quick hack until a better solution is found
ICompositeNode oppositeNode = NodeModelUtils.findActualNodeFor(((Message) context).getTarget().get(0));
if (oppositeNode != null) {
String targetGateName = oppositeNode.getText()
.replaceAll("(?s)where\\s+it\\s+is.+", "")
.replaceAll("(?s)with\\s*\\{.+", "")
.trim();
String[] split = targetGateName.split("\\.");
if (split.length == 2) {
String gate = split[1];
String component = split[0];
if (component.equals(c.getEndPoint().get(0).getComponent().getName()) &&
gate.equals(c.getEndPoint().get(0).getGate().getName())) {
elements.add(c.getEndPoint().get(1));
} else if (component.equals(c.getEndPoint().get(1).getComponent().getName()) &&
gate.equals(c.getEndPoint().get(1).getGate().getName())) {
elements.add(c.getEndPoint().get(0));
}
} else {
//TODO: handle?
}
} else {
//TODO: double check
elements.addAll(c.getEndPoint());
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}
// GateReference opposite = ((Message) context).getTarget().get(0).getTargetGate();
// if (c.getEndPoint().get(0) == opposite) {
// elements.add(c.getEndPoint().get(1));
// } else if (c.getEndPoint().get(1) == opposite) {
// elements.add(c.getEndPoint().get(0));
// }
} else if (context instanceof Target) {
GateReference opposite = null;
if (context.eContainer() instanceof Message) {
opposite = ((Message) context.eContainer()).getSourceGate();
} else {
opposite = ((ProcedureCall) context.eContainer()).getSourceGate();
}
if (c.getEndPoint().get(0) == opposite) {
elements.add(c.getEndPoint().get(1));
} else if (c.getEndPoint().get(1) == opposite) {
elements.add(c.getEndPoint().get(0));
}
} else {
elements.addAll(c.getEndPoint());
}
}
IScope scope = Scopes.scopeFor(elements, new Function<EObject, QualifiedName>() {
@Override
public QualifiedName apply(EObject o) {
GateReference r = (GateReference) o;
String n = r.getComponent().getName()+"."+r.getGate().getName();
QualifiedName qualifiedName = qualifiedNameConverter.toQualifiedName(n);
return qualifiedName;
}
}, IScope.NULLSCOPE);
return scope;
}
} else if (Parameter.class.isAssignableFrom(reference.getEType().getInstanceClass())) {
if (context instanceof MemberAssignment) {
if (context.eContainer() instanceof StructuredDataInstance && ((StructuredDataInstance)context.eContainer()).getDataType() instanceof StructuredDataType) {
IScope scope = Scopes.scopeFor(((StructuredDataType)((StructuredDataInstance)context.eContainer()).getDataType()).allMembers());
return scope;
}
} else if (context instanceof ParameterMapping) {
if (context.eContainer() instanceof DataElementMapping) {
if (((DataElementMapping)context.eContainer()).getMappableDataElement() instanceof StructuredDataType) {
IScope scope = Scopes.scopeFor(((StructuredDataType)((DataElementMapping)context.eContainer()).getMappableDataElement()).allMembers());
return scope;
} else if (((DataElementMapping)context.eContainer()).getMappableDataElement() instanceof Action) {
IScope scope = Scopes.scopeFor(((Action)((DataElementMapping)context.eContainer()).getMappableDataElement()).getFormalParameter());
return scope;
}
}
} else if (context instanceof ParameterBinding) {
if (context.eContainer() instanceof DataInstanceUse) {
if (((DataInstanceUse)context.eContainer()).getDataInstance() instanceof StructuredDataInstance) {
IScope scope = Scopes.scopeFor(((StructuredDataType)((StructuredDataInstance)((DataInstanceUse)context.eContainer()).getDataInstance()).getDataType()).allMembers());
return scope;
} else if (((DataInstanceUse)context.eContainer()).getDataType() instanceof StructuredDataType) {
IScope scope = Scopes.scopeFor(((StructuredDataType)((DataInstanceUse)context.eContainer()).getDataType()).allMembers());
return scope;
} else if (context.eContainer().eContainer() instanceof MemberAssignment) {
DataType dataType = ((MemberAssignment)context
.eContainer()
.eContainer())
.getMember()
.getDataType();
if (dataType!=null) {
IScope scope = Scopes.scopeFor(((StructuredDataType)dataType)
.allMembers());
return scope;
}
} else if (context.eContainer().eContainer() instanceof ParameterBinding) {
IScope scope = Scopes.scopeFor(((StructuredDataType)((ParameterBinding)context.eContainer().eContainer()).getParameter().getDataType()).allMembers());
return scope;
}
} else if (context.eContainer() instanceof FunctionCall) {
// if (((FunctionCall)context.eContainer()).getFunction().get instanceof StructuredDataInstance) {
IScope scope = Scopes.scopeFor(((FunctionCall)context.eContainer()).getFunction().getFormalParameter());
return scope;
// }
} else if (context.eContainer() instanceof ActionReference) {
// if (((FunctionCall)context.eContainer()).getFunction().get instanceof StructuredDataInstance) {
IScope scope = Scopes.scopeFor(((ActionReference)context.eContainer()).getAction().getFormalParameter());
return scope;
// }
} else if (context.eContainer() instanceof TestDescriptionReference) {
// if (((FunctionCall)context.eContainer()).getFunction().get instanceof StructuredDataInstance) {
IScope scope = Scopes.scopeFor(((TestDescriptionReference)context.eContainer()).getTestDescription().getFormalParameter());
return scope;
// }
} else if (context.eContainer() instanceof FormalParameterUse) {
IScope scope = Scopes.scopeFor(((StructuredDataType)((FormalParameterUse)context.eContainer()).getParameter().getDataType()).allMembers());
return scope;
} else if (context.eContainer() instanceof VariableUse) {
IScope scope = Scopes.scopeFor(((StructuredDataType)((VariableUse)context.eContainer()).getVariable().getDataType()).allMembers());
return scope;
} else if (context.eContainer() instanceof ProcedureCall) {
// if (((FunctionCall)context.eContainer()).getFunction().get instanceof StructuredDataInstance) {
IScope scope = Scopes.scopeFor(((ProcedureCall)context.eContainer()).getSignature().getParameter());
return scope;
// }
}
} else if (context instanceof MemberReference) {
if (((DataUse)context.eContainer()).getReduction().indexOf(context)>0) {
EObject targetContext = ((DataUse)context.eContainer()).getReduction().get(((DataUse)context.eContainer()).getReduction().indexOf(context)-1);
if (((MemberReference)targetContext).getMember()!=null) {
if (((MemberReference)targetContext).getMember().getDataType() instanceof StructuredDataType) {
IScope scope = Scopes.scopeFor(((StructuredDataType)((MemberReference)targetContext).getMember().getDataType()).allMembers());
return scope;
}
}
}
if (context.eContainer() instanceof DataInstanceUse) {
if (((DataInstanceUse)context.eContainer()).getDataInstance() instanceof StructuredDataInstance) {
IScope scope = Scopes.scopeFor(((StructuredDataType)((StructuredDataInstance)((DataInstanceUse)context.eContainer()).getDataInstance()).getDataType()).allMembers());
return scope;
}
} else if (context.eContainer() instanceof FunctionCall) {
if (((FunctionCall)context.eContainer()).getFunction().getReturnType() instanceof StructuredDataType) {
IScope scope = Scopes.scopeFor(((StructuredDataType)((FunctionCall)context.eContainer()).getFunction().getReturnType()).allMembers());
return scope;
}
} else if (context.eContainer() instanceof FormalParameterUse) {
if (((FormalParameterUse)context.eContainer()).getParameter().getDataType() instanceof StructuredDataType) {
IScope scope = Scopes.scopeFor(((StructuredDataType)((FormalParameterUse)context.eContainer()).getParameter().getDataType()).allMembers());
return scope;
}
} else if (context.eContainer() instanceof VariableUse) {
if (((VariableUse)context.eContainer()).getVariable().getDataType() instanceof StructuredDataType) {
IScope scope = Scopes.scopeFor(((StructuredDataType)((VariableUse)context.eContainer()).getVariable().getDataType()).allMembers());
return scope;
}
} else {
}
}
} else if (reference.getEType().getInstanceClass() == Variable.class) {
if (context instanceof Assignment) {
if (((Assignment)context).getComponentInstance()!=null) {
IScope scope = Scopes.scopeFor(((Assignment)context).getComponentInstance().getType().allVariables());
return scope;
}
}
if (context instanceof VariableUse) {
if (((VariableUse)context).getComponentInstance()!=null) {
IScope scope = Scopes.scopeFor(((VariableUse)context).getComponentInstance().getType().allVariables());
return scope;
}
}
else if (context instanceof ValueAssignment) {
if (((Target)context.eContainer()).getTargetGate().getComponent()!=null) {
IScope scope = Scopes.scopeFor(((Target)context.eContainer()).getTargetGate().getComponent().getType().allVariables());
return scope;
}
}
} else if (reference.getEType().getInstanceClass() == Timer.class) {
if (context instanceof TimerOperation) {
IScope scope = Scopes.scopeFor(((TimerOperation)context).getComponentInstance().getType().allTimers());
return scope;
}
} else if (context instanceof Extension) {
EList<EObject> elements = getScopedElementsOfType(context, ((Element)context.eContainer()).getClass());
return Scopes.scopeFor(elements);
} else {
}
if (context instanceof Block) {
TestDescription testDescription = getTestDescription((Element) context);
if (testDescription!=null) {
TestConfiguration configuration = testDescription.getTestConfiguration();
IScope scope = Scopes.scopeFor(configuration.getComponentInstance());
return scope;
}
}
return super.getScope(context, reference);
}
private TestConfiguration getTestConfiguration(Element self) {
if (self.eContainer()!=null) {
if (!(self.eContainer() instanceof TestConfiguration)) {
return getTestConfiguration((Element) self.eContainer());
} else {
return (TestConfiguration)self.eContainer();
}
}
return null;
}
private TestDescription getTestDescription(Element self) {
if (self.eContainer()!=null) {
if (!(self.eContainer() instanceof TestDescription)) {
return getTestDescription((Element) self.eContainer());
} else {
return (TestDescription)self.eContainer();
}
}
return null;
}
public IScope scope_ElementImport_importedElement(ElementImport context, EReference ref) {
EList<EObject> elements = new BasicEList<>();
Package ip = context.getImportedPackage();
for (PackageableElement e : ip.getPackagedElement()) {
elements.add(e);
}
IScope scope = Scopes.scopeFor(elements);
return scope;
}
private Package getPackage(EObject e) {
if (e.eContainer()!=null) {
if (e.eContainer() instanceof Package) {
return (Package)e.eContainer();
} else {
return getPackage(e.eContainer());
}
} else {
return (Package)e;
}
}
private EList<EObject> getScopedElementsOfType(EObject context, Class c) {
EList<EObject> elements = new BasicEList<>();
Package p = getPackage(context);
//within same package
for (PackageableElement e : p.getPackagedElement()) {
if (c.isInstance(e)) {
elements.add(e);
}
}
//within imported packages
for (ElementImport i : p.getImport()) {
Package ip = i.getImportedPackage();
if (ip != null) {
if (i.getImportedElement().isEmpty()) {
//import all
for (PackageableElement e : ip.getPackagedElement()) {
if (c.isInstance(e)) {
elements.add(e);
}
}
} else {
//specific imports
for (PackageableElement e : i.getImportedElement()) {
if (c.isInstance(e)) {
elements.add(e);
}
}
}
}
}
return elements;
}
}