Examples with CrossReference org.eclipse.xtext.CrossReference used on opensource projects

Example 11 with CrossReference

use of org.eclipse.xtext.CrossReference in project xtext-core by eclipse.

the class AssignmentFinder method findValidAssignmentsForCrossRef.

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 12 with CrossReference

use of org.eclipse.xtext.CrossReference in project xtext-core by eclipse.

the class EmitterNodeIterator method next.

@Override
public INode next() {
    INode result;
    if (!next.isEmpty()) {
        result = next.get(0);
        next.remove(0);
    } else
        result = null;
    if (next.isEmpty())
        while (iterator.hasNext()) {
            INode next = iterator.next();
            if (next.getOffset() >= end)
                break;
            if (include(next)) {
                if (!passAbsorber && isAbsorber(next))
                    break;
                if (allowHidden && next instanceof ICompositeNode && (GrammarUtil.isDatatypeRuleCall(next.getGrammarElement()) || GrammarUtil.isEnumRuleCall(next.getGrammarElement()) || next.getGrammarElement() instanceof CrossReference)) {
                    NodeIterator ni = new NodeIterator(next);
                    while (ni.hasNext()) {
                        INode next2 = ni.next();
                        if (next2 instanceof ILeafNode && ((ILeafNode) next2).isHidden())
                            this.next.add(next2);
                        else
                            break;
                    }
                }
                iterator.prune();
                this.next.add(next);
                return result;
            }
        }
    return result;
}

Example 13 with CrossReference

use of org.eclipse.xtext.CrossReference in project xtext-core by eclipse.

the class CrossReferenceSerializer method isValid.

@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 14 with CrossReference

use of org.eclipse.xtext.CrossReference in project xtext-core by eclipse.

the class LazyLinkerTest method newCrossReferenceAssignmentNode.

private INode newCrossReferenceAssignmentNode(final String feature) {
    final LeafNode leafNode = new LeafNode();
    final Assignment assignment = XtextFactory.eINSTANCE.createAssignment();
    assignment.setFeature(feature);
    final CrossReference crossReference = XtextFactory.eINSTANCE.createCrossReference();
    assignment.setTerminal(crossReference);
    leafNode.basicSetGrammarElement(crossReference);
    return leafNode;
}

Example 15 with CrossReference

use of org.eclipse.xtext.CrossReference in project xtext-core by eclipse.

the class PartialSerializer method updateSingleValue.

protected SerializationStrategy updateSingleValue(EObject object, EStructuralFeature feature, IAstRegion region) {
    Preconditions.checkArgument(!feature.isMany());
    Object value = object.eGet(feature);
    EObject grammarElement = region.getGrammarElement();
    if (feature instanceof EAttribute) {
        if (grammarElement instanceof RuleCall) {
            RuleCall rc = (RuleCall) grammarElement;
            String newValue = valueSerializer.serializeAssignedValue(object, rc, value, null, errorAcceptor);
            if (newValue != null) {
                return new ReplaceRegionStrategy((ISemanticRegion) region, newValue);
            }
        }
        return null;
    } else if (feature instanceof EReference) {
        if (((EReference) feature).isContainment()) {
            IEObjectRegion reg = (IEObjectRegion) region;
            EObject newEObject = (EObject) object.eGet(feature);
            ISerializationContext newContext = getSerializationContext(newEObject);
            ISerializationContext oldContext = getSerializationContext(reg);
            if (!oldContext.equals(newContext)) {
                return null;
            }
            return new SerializeRecursiveStrategy(reg, newEObject, newContext);
        } else {
            CrossReference cr = GrammarUtil.containingCrossReference(grammarElement);
            if (cr != null) {
                EObject target = (EObject) value;
                String newValue = crossRefSerializer.serializeCrossRef(object, cr, target, null, errorAcceptor);
                if (newValue != null) {
                    return new ReplaceRegionStrategy((ISemanticRegion) region, newValue);
                }
            }
        }
        return null;
    }
    return null;
}