Java Code Examples for org.eclipse.xtext.CrossReference#getTerminal()

protected boolean hasIdRule(CrossReference crossRef) {
	if (crossRef.getTerminal() instanceof RuleCall) {
		String ruleName = ((RuleCall) crossRef.getTerminal()).getRule().getName();
		return "IdOrSuper".equals(ruleName) || "ValidID".equals(ruleName) || "FeatureCallID".equals(ruleName);
	}
	return false;
}
 

protected String _getConcreteSyntaxRuleName(final CrossReference crossReference) {
  String _xifexpression = null;
  AbstractElement _terminal = crossReference.getTerminal();
  if ((_terminal instanceof RuleCall)) {
    _xifexpression = this.getConcreteSyntaxRuleName(crossReference.getTerminal());
  }
  return _xifexpression;
}
 

private String getLabel(CrossReference ref) {
	TypeRef type = ref.getType();
	String typeName = getClassifierName(type);
	if (ref.getTerminal() instanceof RuleCall)
		return "[" + typeName + "|" + getLabel((RuleCall) ref.getTerminal()) + "]";
	return "[" + typeName + "|..]";
}
 

protected void lookupCrossReference(CrossReference crossReference, EReference reference,
		ContentAssistContext contentAssistContext, ICompletionProposalAcceptor acceptor,
		Predicate<IEObjectDescription> filter) {
	String ruleName = null;
	if (crossReference.getTerminal() instanceof RuleCall) {
		ruleName = ((RuleCall) crossReference.getTerminal()).getRule().getName();
	}
	lookupCrossReference(contentAssistContext.getCurrentModel(), reference, acceptor, filter,
			getProposalFactory(ruleName, contentAssistContext));
}
 

protected String getConcreteSyntaxRuleName(CrossReference crossReference) {
	String ruleName = null;
	if (crossReference.getTerminal() instanceof RuleCall) {
		ruleName = getConcreteSyntaxRuleName((RuleCall) crossReference.getTerminal());
	}
	return ruleName;
}
 

@Override
protected void afterCreateAndSetProxy(EObject obj, INode node, EReference eRef, CrossReference xref, IDiagnosticProducer diagnosticProducer) {
	AbstractElement terminal = xref.getTerminal();
	if (!(terminal instanceof RuleCall)) { 
		throw new IllegalArgumentException(String.valueOf(xref));
	}
	AbstractRule rule = ((RuleCall) terminal).getRule();
	try {
		String tokenText = NodeModelUtils.getTokenText(node);
		valueConverterService.toValue(tokenText, rule.getName(), node);
	} catch(ValueConverterException e) {
		diagnosticProducer.addDiagnostic(new DiagnosticMessage(e.getMessage(), Severity.ERROR, Diagnostic.SYNTAX_DIAGNOSTIC, Strings.EMPTY_ARRAY));
	}
}
 

@Check
public void checkCrossReferenceTerminal(CrossReference reference) {
	if (reference.getTerminal() != null) {
		if (reference.getTerminal() instanceof RuleCall) {
			RuleCall call = (RuleCall) reference.getTerminal();
			checkCrossReferenceTerminal(call);
		} 
	}
	
}
 

@Override
public Boolean caseCrossReference(CrossReference object) {
	// Do not create duplicate errors
	if (shouldTraverse(object)) {
		pushChecked(object);
		if (object.getTerminal() != null)
			doSwitch(object.getTerminal());
		popChecked(object);
	}
	return Boolean.FALSE;
}
 

/**
 * Creates the proxy with a custom encoded URI format (starting with "|"). The object used to produce the encoded
 * URI are collected as tuple inside {@link N4JSResource}. Then the node text is checked if it is convertible to a
 * valid value. If there is a {@link BadEscapementException} is thrown then there is either a warning or an error
 * produced via the diagnosticProducer.
 *
 *
 * @param resource
 *            the N4JSResource
 * @param obj
 *            the EObject containing the cross reference
 * @param node
 *            the node representing the EObject
 * @param eRef
 *            the cross reference in the domain model
 * @param xref
 *            the cross reference in the node model
 * @param diagnosticProducer
 *            to produce errors or warnings
 * @return the created proxy
 */
private EObject createProxy(N4JSResource resource, EObject obj, INode node, EReference eRef, CrossReference xref,
		IDiagnosticProducer diagnosticProducer) {
	final URI uri = resource.getURI();
	/*
	 * as otherwise with 0 the EObjectDescription created for Script would be fetched
	 */
	final int fragmentNumber = resource.addLazyProxyInformation(obj, eRef, node);
	final URI encodedLink = uri.appendFragment("|" + fragmentNumber);
	EClass referenceType = findInstantiableCompatible(eRef.getEReferenceType());
	final EObject proxy = EcoreUtil.create(referenceType);
	((InternalEObject) proxy).eSetProxyURI(encodedLink);
	AbstractElement terminal = xref.getTerminal();
	if (!(terminal instanceof RuleCall)) {
		throw new IllegalArgumentException(String.valueOf(xref));
	}
	AbstractRule rule = ((RuleCall) terminal).getRule();
	try {
		String tokenText = NodeModelUtils.getTokenText(node);
		Object value = valueConverterService.toValue(tokenText, rule.getName(), node);
		if (obj instanceof IdentifierRef && value instanceof String) {
			((IdentifierRef) obj).setIdAsText((String) value);
		} else if (obj instanceof ParameterizedTypeRef && value instanceof String) {
			((ParameterizedTypeRef) obj).setDeclaredTypeAsText((String) value);
		} else if (obj instanceof LabelRef && value instanceof String) {
			((LabelRef) obj).setLabelAsText((String) value);
		} else if (obj instanceof ParameterizedPropertyAccessExpression && value instanceof String) {
			((ParameterizedPropertyAccessExpression) obj).setPropertyAsText((String) value);
		} else if (obj instanceof ImportDeclaration && value instanceof String) {
			((ImportDeclaration) obj).setModuleSpecifierAsText((String) value);
		} else if (obj instanceof NamedImportSpecifier && value instanceof String) {
			((NamedImportSpecifier) obj).setImportedElementAsText((String) value);
		} else if ((obj instanceof JSXPropertyAttribute) && (value instanceof String)) {
			((JSXPropertyAttribute) obj).setPropertyAsText((String) value);
		} else {
			setOtherElementAsText(tokenText, obj, value);
		}
	} catch (BadEscapementException e) {
		diagnosticProducer.addDiagnostic(new DiagnosticMessage(e.getMessage(), e.getSeverity(), e.getIssueCode(),
				Strings.EMPTY_ARRAY));
	} catch (N4JSValueConverterException vce) {
		diagnosticProducer.addDiagnostic(new DiagnosticMessage(vce.getMessage(), vce.getSeverity(),
				vce.getIssueCode(), Strings.EMPTY_ARRAY));
	} catch (N4JSValueConverterWithValueException vcwve) {
		diagnosticProducer.addDiagnostic(new DiagnosticMessage(vcwve.getMessage(), vcwve.getSeverity(),
				vcwve.getIssueCode(), Strings.EMPTY_ARRAY));
	}
	return proxy;
}
 

@Override
public Void caseCrossReference(CrossReference object) {
	if (object.getTerminal() != null)
		return doSwitch(object.getTerminal());
	return null;
}