Java Code Examples for org.eclipse.xtext.GrammarUtil#containingCrossReference()

The following examples show how to use org.eclipse.xtext.GrammarUtil#containingCrossReference() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: SequenceFeeder.java    From xtext-core with Eclipse Public License 2.0 6 votes vote down vote up 
protected void acceptRuleCall(RuleCall rc, Object value, String token, int index, INode node) {
	CrossReference crossRef = GrammarUtil.containingCrossReference(rc);
	if (crossRef != null) {
		if (rc.getRule() instanceof ParserRule)
			sequenceAcceptor.acceptAssignedCrossRefDatatype(rc, token, (EObject) value, index,
					getCompositeNode(node));
		else if (rc.getRule() instanceof TerminalRule)
			sequenceAcceptor.acceptAssignedCrossRefTerminal(rc, token, (EObject) value, index, getLeafNode(node));
		else if (rc.getRule() instanceof EnumRule)
			sequenceAcceptor.acceptAssignedCrossRefEnum(rc, token, (EObject) value, index, getCompositeNode(node));
	} else {
		if (rc.getRule() instanceof ParserRule) {
			AbstractRule rule = rc.getRule();
			if (rule.getType() != null && rule.getType().getClassifier() instanceof EClass)
				acceptEObjectRuleCall(rc, (EObject) value, getCompositeNode(node));
			else
				sequenceAcceptor.acceptAssignedDatatype(rc, token, value, index, getCompositeNode(node));
		} else if (rc.getRule() instanceof TerminalRule)
			sequenceAcceptor.acceptAssignedTerminal(rc, token, value, index, getLeafNode(node));
		else if (rc.getRule() instanceof EnumRule)
			sequenceAcceptor.acceptAssignedEnum(rc, token, value, index, getCompositeNode(node));
	}
}
Example 2
Source File: CrossReferenceSerializer.java    From xtext-core with Eclipse Public License 2.0 6 votes vote down vote up 
@Override
public boolean isValid(EObject semanticObject, CrossReference crossref, EObject target, INode node, Acceptor errors) {
	if ((target == null || target.eIsProxy()) && node != null) {
		CrossReference crossrefFromNode = GrammarUtil.containingCrossReference(node.getGrammarElement());
		return crossref == crossrefFromNode;
	}
	
	final EReference ref = GrammarUtil.getReference(crossref, semanticObject.eClass());
	final IScope scope = scopeProvider.getScope(semanticObject, ref);
	if (scope == null) {
		if (errors != null)
			errors.accept(diagnostics.getNoScopeFoundDiagnostic(semanticObject, crossref, target));
		return false;
	}
	
	if (target != null && target.eIsProxy()) {
		target = handleProxy(target, semanticObject, ref);
	}
	
	return getCrossReferenceNameFromScope(semanticObject, crossref, target, scope, errors) != null;
}
Example 3
Source File: AbstractFormattingConfig.java    From xtext-core with Eclipse Public License 2.0 6 votes vote down vote up 
protected List<AbstractElement> getAbstractElements(EObject obj) {
	if (obj instanceof AbstractElement)
		return Collections.singletonList((AbstractElement) obj);
	if (obj instanceof AbstractRule) {
		AbstractRule rule = (AbstractRule) obj;
		if (rule.getType().getClassifier() instanceof EClass)
			return Collections.singletonList(rule.getAlternatives());
		List<AbstractElement> result = Lists.newArrayList();
		for (RuleCall rc : grammarAccess.findRuleCalls(rule)) {
			CrossReference cr = GrammarUtil.containingCrossReference(rc);
			result.add(cr == null ? rc : cr);
		}
		return result;
	}
	return null;
}
Example 4
Source File: GrammarElementTitleSwitch.java    From xtext-core with Eclipse Public License 2.0 5 votes vote down vote up 
protected String addCrossRef(String result, AbstractElement ele) {
	if (!showAssignment)
		return result;
	CrossReference cr = GrammarUtil.containingCrossReference(ele);
	if (cr == null)
		return result;
	String name = cr.getType() != null && cr.getType().getClassifier() != null ? cr.getType().getClassifier()
			.getName() : "null";
	return "[" + name + "|" + result + "]";
}
Example 5
Source File: SequenceFeeder.java    From xtext-core with Eclipse Public License 2.0 5 votes vote down vote up 
protected void acceptKeyword(Assignment ass, Keyword keyword, Object value, String token, int index, ILeafNode node) {
	CrossReference crossRef = GrammarUtil.containingCrossReference(keyword);
	if (crossRef != null)
		sequenceAcceptor.acceptAssignedCrossRefKeyword(keyword, token, (EObject) value, index, node);
	else
		sequenceAcceptor.acceptAssignedKeyword(keyword, token, value, index, node);
}
Example 6
Source File: SequenceFeeder.java    From xtext-core with Eclipse Public License 2.0 5 votes vote down vote up 
protected String getToken(Keyword keyword, Object value, ILeafNode node) {
	CrossReference crossRef = GrammarUtil.containingCrossReference(keyword);
	if (crossRef != null)
		return provider.crossRefSerializer.serializeCrossRef(semanticObject, crossRef, (EObject) value, node,
				errorAcceptor);
	return provider.keywordSerializer.serializeAssignedKeyword(semanticObject, keyword, value, node, errorAcceptor);
}
Example 7
Source File: SequenceFeeder.java    From xtext-core with Eclipse Public License 2.0 5 votes vote down vote up 
protected String getToken(RuleCall rc, Object value, INode node) {
	CrossReference crossRef = GrammarUtil.containingCrossReference(rc);
	Assignment assignment = GrammarUtil.containingAssignment(rc);
	if (crossRef != null)
		return provider.crossRefSerializer.serializeCrossRef(semanticObject, crossRef, (EObject) value, node,
				errorAcceptor);
	else if (GrammarUtil.isEObjectRuleCall(rc) || GrammarUtil.isBooleanAssignment(assignment))
		return null;
	else if (GrammarUtil.isEnumRuleCall(rc))
		return provider.enumLiteralSerializer.serializeAssignedEnumLiteral(semanticObject, rc, value, node,
				errorAcceptor);
	else
		return provider.valueSerializer.serializeAssignedValue(semanticObject, rc, value, node, errorAcceptor);
}
Example 8
Source File: AssignmentFinder.java    From xtext-core with Eclipse Public License 2.0 5 votes vote down vote up 
protected Set<AbstractElement> findValidAssignmentsForCrossRef(EObject semanticObj,
		Iterable<AbstractElement> assignedElements, EObject value, INode node) {
	Set<AbstractElement> result = Sets.newLinkedHashSet();
	for (AbstractElement ass : assignedElements) {
		CrossReference crossref = GrammarUtil.containingCrossReference(ass);
		EReference eref = GrammarUtil.getReference(crossref, semanticObj.eClass());
		if (EcoreUtil2.isAssignableFrom(eref.getEReferenceType(), value.eClass())
				&& crossRefSerializer.isValid(semanticObj, crossref, value, node, null))
			result.add(ass);
	}
	return result;
}
Example 9
Source File: NodeModelSemanticSequencer.java    From xtext-core with Eclipse Public License 2.0 5 votes vote down vote up 
@Override
public void createSequence(ISerializationContext context, EObject semanticObject) {
	SemanticNodeIterator ni = new SemanticNodeIterator(semanticObject);
	while (ni.hasNext()) {
		Triple<INode, AbstractElement, EObject> node = ni.next();
		if (node.getSecond() instanceof RuleCall) {
			RuleCall rc = (RuleCall) node.getSecond();
			TypeRef ruleType = rc.getRule().getType();
			if (ruleType == null || ruleType.getClassifier() instanceof EClass)
				acceptSemantic(semanticObject, rc, node.getThird(), node.getFirst());
			else if (GrammarUtil.containingCrossReference(node.getSecond()) != null) {
				EStructuralFeature feature = FeatureFinderUtil.getFeature(node.getSecond(),
						semanticObject.eClass());
				acceptSemantic(semanticObject, rc, semanticObject.eGet(feature), node.getFirst());
			} else {
				String strVal = NodeModelUtils.getTokenText(node.getFirst());
				Object val = valueConverter.toValue(strVal, ruleNames.getQualifiedName(rc.getRule()),
						node.getFirst());
				acceptSemantic(semanticObject, rc, val, node.getFirst());
			}
		} else if (node.getSecond() instanceof Keyword)
			acceptSemantic(semanticObject, node.getSecond(), node.getFirst().getText(), node.getFirst());
		else if (node.getSecond() instanceof Action) {
			acceptSemantic(semanticObject, node.getSecond(), semanticObject, node.getFirst());
		}
	}
}