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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.scoping.IScope;
import org.eclipse.xtext.scoping.Scopes;
import org.eclipse.xtext.scoping.impl.AbstractDeclarativeScopeProvider;
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.Connection;
import org.etsi.mts.tdl.DataElementMapping;
import org.etsi.mts.tdl.DataInstanceUse;
import org.etsi.mts.tdl.Element;
import org.etsi.mts.tdl.FunctionCall;
import org.etsi.mts.tdl.GateInstance;
import org.etsi.mts.tdl.GateReference;
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import org.etsi.mts.tdl.LocalExpression;
import org.etsi.mts.tdl.MemberAssignment;
import org.etsi.mts.tdl.Parameter;
import org.etsi.mts.tdl.ParameterBinding;
import org.etsi.mts.tdl.ParameterMapping;
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.Variable;
import org.etsi.mts.tdl.VariableUse;
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 TDLan2ScopeProvider extends AbstractDeclarativeScopeProvider {
@Inject
private IQualifiedNameConverter qualifiedNameConverter;
@Override
public IScope getScope(EObject context, EReference reference) {
if (reference.getEType().getInstanceClass() == GateInstance.class) {
if (context instanceof GateReference) {
GateReference gate = (GateReference) context;
IScope scope = Scopes.scopeFor(gate.getComponent().getType().getGateInstance());
return scope;
}
} else if (reference.getEType().getInstanceClass() == ComponentInstance.class) {
if (context instanceof Behaviour || context instanceof Block || context instanceof LocalExpression || context instanceof VariableUse) {
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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 (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()) {
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) {
IScope scope = Scopes.scopeFor(((StructuredDataType)((StructuredDataInstance)context.eContainer()).getDataType()).getMember());
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()).getMember());
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()).getMember());
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 (reference.getEType().getInstanceClass() == Variable.class) {
if (context instanceof Assignment) {
if (((Assignment)context).getComponentInstance()!=null) {
IScope scope = Scopes.scopeFor(((Assignment)context).getComponentInstance().getType().getVariable());
return scope;
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}
}
if (context instanceof VariableUse) {
if (((VariableUse)context).getComponentInstance()!=null) {
IScope scope = Scopes.scopeFor(((VariableUse)context).getComponentInstance().getType().getVariable());
return scope;
}
}
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else if (context instanceof Target) {
if (((Target)context).getTargetGate().getComponent()!=null) {
IScope scope = Scopes.scopeFor(((Target)context).getTargetGate().getComponent().getType().getVariable());
return scope;
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}
}
} 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;
}
}