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

Example 26 with RuleCall

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

the class TreeConstructionReportImpl method getDiagnosticMessage.

protected String getDiagnosticMessage(AssignmentToken token) {
    Assignment ass = (Assignment) token.getGrammarElement();
    Object value = token.getEObjectConsumer().getConsumable(ass.getFeature(), false);
    if (value == null) {
        EStructuralFeature f = token.getEObjectConsumer().getEObject().eClass().getEStructuralFeature(ass.getFeature());
        if (f == null)
            return "The current object of type '" + token.getEObjectConsumer().getEObject().eClass().getName() + "' does not have a feature named '" + ass.getFeature() + "'";
        String cls = f.getEContainingClass() == token.getEObjectConsumer().getEObject().eClass() ? f.getEContainingClass().getName() : f.getEContainingClass().getName() + "(" + token.getEObjectConsumer().getEObject().eClass().getName() + ")";
        String feat = cls + "." + f.getName();
        if (f.isMany()) {
            int size = ((List<?>) token.getEObjectConsumer().getEObject().eGet(f)).size();
            return "All " + size + " values of " + feat + " have been consumed. " + "More are needed to continue here.";
        } else
            return feat + " is not set.";
    } else {
        ErrorAcceptor err = new ErrorAcceptor();
        for (RuleCall ruleCall : GrammarUtil.containedRuleCalls(token.getGrammarElement())) {
            if (ruleCall.getRule() instanceof EnumRule) {
                if (enumSerializer.isValid(token.getEObject(), ruleCall, value, err))
                    return null;
            } else if (ruleCall.getRule().getType().getClassifier() instanceof EDataType) {
                if (valueSerializer.isValid(token.getEObject(), ruleCall, value, err))
                    return null;
            }
        }
        return err.getMessage();
    }
}

Example 27 with RuleCall

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

the class DefaultLocationInFileProvider method getLocationNodes.

protected List<INode> getLocationNodes(EObject obj) {
    final EStructuralFeature nameFeature = getIdentifierFeature(obj);
    if (nameFeature != null) {
        List<INode> result = NodeModelUtils.findNodesForFeature(obj, nameFeature);
        if (!result.isEmpty())
            return result;
    }
    List<INode> resultNodes = Lists.newArrayList();
    final ICompositeNode startNode = findNodeFor(obj);
    INode keywordNode = null;
    // use LeafNodes instead of children?
    for (INode child : startNode.getChildren()) {
        EObject grammarElement = child.getGrammarElement();
        if (grammarElement instanceof RuleCall) {
            RuleCall ruleCall = (RuleCall) grammarElement;
            String ruleName = ruleCall.getRule().getName();
            if (ruleName.equals("ID")) {
                resultNodes.add(child);
            }
        } else if (grammarElement instanceof Keyword) {
            // TODO use only keywords, that aren't symbols like '=' ?
            if (keywordNode == null && useKeyword((Keyword) grammarElement, obj)) {
                keywordNode = child;
            }
        }
    }
    if (resultNodes.isEmpty() && keywordNode != null)
        resultNodes.add(keywordNode);
    return resultNodes;
}

Example 28 with RuleCall

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

the class Linker method ensureLinked.

private void ensureLinked(EObject obj, IDiagnosticProducer producer, ICompositeNode node, Set<EReference> handledReferences, boolean dontCheckParent) {
    for (INode abstractNode = node.getFirstChild(); abstractNode != null; abstractNode = abstractNode.getNextSibling()) {
        EObject grammarElement = abstractNode.getGrammarElement();
        if (grammarElement instanceof CrossReference) {
            CrossReference ref = (CrossReference) grammarElement;
            producer.setNode(abstractNode);
            ensureIsLinked(obj, abstractNode, ref, handledReferences, producer);
        } else if (grammarElement instanceof RuleCall && abstractNode instanceof ICompositeNode) {
            RuleCall ruleCall = (RuleCall) grammarElement;
            AbstractRule calledRule = ruleCall.getRule();
            if (calledRule instanceof ParserRule && ((ParserRule) calledRule).isFragment()) {
                ensureLinked(obj, producer, (ICompositeNode) abstractNode, handledReferences, true);
            }
        }
    }
    if (!dontCheckParent && shouldCheckParentNode(node)) {
        ensureLinked(obj, producer, node.getParent(), handledReferences, false);
    }
}

Example 29 with RuleCall

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

the class KeywordAlternativeConverter method setRule.

/**
 * @throws IllegalArgumentException if the rule is not a datatype rule or does not match
 *   the pattern <pre>RuleName: 'keyword' | 'other';</pre>
 */
@Override
public void setRule(AbstractRule rule) {
    if (!GrammarUtil.isDatatypeRule(rule))
        throw new IllegalArgumentException(rule.getName() + " is not a data type rule");
    if (!(rule.getAlternatives() instanceof Alternatives)) {
        if (rule.getAlternatives() instanceof RuleCall) {
            delegateRule = ((RuleCall) rule.getAlternatives()).getRule();
            keywords = Collections.emptySet();
            return;
        }
        throw mismatchedRuleBody(rule);
    }
    Alternatives alternatives = (Alternatives) rule.getAlternatives();
    ImmutableSet.Builder<String> builder = ImmutableSet.builder();
    for (AbstractElement element : alternatives.getElements()) {
        processElement(element, rule, builder);
    }
    keywords = builder.build();
}

Example 30 with RuleCall

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

the class AbstractFormattingConfig method getAbstractElements.

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;
}