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

Example 16 with CrossReference

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

the class IdeContentProposalProvider method _createProposals.

protected void _createProposals(final Assignment assignment, final ContentAssistContext context, final IIdeContentProposalAcceptor acceptor) {
    final AbstractElement terminal = assignment.getTerminal();
    if ((terminal instanceof CrossReference)) {
        this.createProposals(terminal, context, acceptor);
    } else {
        if ((terminal instanceof RuleCall)) {
            final AbstractRule rule = ((RuleCall) terminal).getRule();
            if (((rule instanceof TerminalRule) && context.getPrefix().isEmpty())) {
                String _xifexpression = null;
                String _name = rule.getName();
                boolean _equals = Objects.equal(_name, "STRING");
                if (_equals) {
                    String _feature = assignment.getFeature();
                    String _plus = ("\"" + _feature);
                    _xifexpression = (_plus + "\"");
                } else {
                    _xifexpression = assignment.getFeature();
                }
                final String proposal = _xifexpression;
                final Procedure1<ContentAssistEntry> _function = (ContentAssistEntry it) -> {
                    String _name_1 = rule.getName();
                    boolean _equals_1 = Objects.equal(_name_1, "STRING");
                    if (_equals_1) {
                        ArrayList<TextRegion> _editPositions = it.getEditPositions();
                        int _offset = context.getOffset();
                        int _plus_1 = (_offset + 1);
                        int _length = proposal.length();
                        int _minus = (_length - 2);
                        TextRegion _textRegion = new TextRegion(_plus_1, _minus);
                        _editPositions.add(_textRegion);
                        it.setKind(ContentAssistEntry.KIND_TEXT);
                    } else {
                        ArrayList<TextRegion> _editPositions_1 = it.getEditPositions();
                        int _offset_1 = context.getOffset();
                        int _length_1 = proposal.length();
                        TextRegion _textRegion_1 = new TextRegion(_offset_1, _length_1);
                        _editPositions_1.add(_textRegion_1);
                        it.setKind(ContentAssistEntry.KIND_VALUE);
                    }
                    it.setDescription(rule.getName());
                };
                final ContentAssistEntry entry = this.proposalCreator.createProposal(proposal, context, _function);
                acceptor.accept(entry, this.proposalPriorities.getDefaultPriority(entry));
            }
        }
    }
}

Example 17 with CrossReference

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

the class BaseContentAssistParser method getEntryGrammarElement.

protected AbstractElement getEntryGrammarElement(ICompositeNode entryPoint) {
    EObject grammarElement = entryPoint.getGrammarElement();
    if (grammarElement instanceof RuleCall) {
        AbstractRule rule = ((RuleCall) grammarElement).getRule();
        if (rule instanceof ParserRule) {
            if (!GrammarUtil.isMultipleCardinality(rule.getAlternatives())) {
                grammarElement = rule.getAlternatives();
            }
        }
    } else if (grammarElement instanceof ParserRule) {
        grammarElement = ((ParserRule) grammarElement).getAlternatives();
    } else if (grammarElement instanceof CrossReference) {
        grammarElement = GrammarUtil.containingAssignment(grammarElement);
    }
    AbstractElement result = (AbstractElement) grammarElement;
    if (result instanceof Action) {
        return getEntryGrammarElement((ICompositeNode) entryPoint.getFirstChild());
    }
    return result;
}

Example 18 with CrossReference

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

the class SemanticSequencerNfaProvider method isContentValidationNeeded.

protected boolean isContentValidationNeeded(Collection<AbstractElement> ass) {
    if (ass == null || ass.size() < 2)
        return false;
    Iterator<AbstractElement> it = ass.iterator();
    AbstractElement first = it.next();
    CrossReference firstRef = GrammarUtil.containingCrossReference(first);
    while (it.hasNext()) {
        AbstractElement next = it.next();
        if (next instanceof Action)
            return true;
        if (!EcoreUtil.equals(first, next))
            return true;
        if (firstRef != null) {
            CrossReference nextRef = GrammarUtil.containingCrossReference(next);
            if (nextRef != null && nextRef.getType().getClassifier() != firstRef.getType().getClassifier())
                return true;
        }
    }
    return false;
}

Example 19 with CrossReference

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

the class HiddenTokenSequencer method getHiddenNodesBetween.

/**
 * @return null if the whitespace between these nodes is unknown.
 * In this case, the formatter needs to decide.
 */
protected List<INode> getHiddenNodesBetween(INode from, INode to) {
    if (from == null && to == null)
        return null;
    List<INode> out = Lists.newArrayList();
    Set<EObject> deletedSemanticElements = Sets.newHashSet();
    if (to == null) {
        NodeIterator ni = new NodeIterator(from);
        while (ni.hasNext()) {
            INode next = ni.next();
            if (next.getTotalOffset() > rootEndOffset) {
                break;
            }
            if (next == lastEmittedNode) {
                break;
            } else if (tokenUtil.isWhitespaceOrCommentNode(next)) {
                out.add(next);
            } else if (belongsToDeletedElement(next)) {
                handleDeletedElement(out, deletedSemanticElements, next);
                ni.prune();
            } else {
                break;
            }
        }
    } else if (from == null) {
        NodeIterator ni = new NodeIterator(to);
        while (ni.hasPrevious()) {
            INode prev = ni.previous();
            if (prev.getTotalEndOffset() < rootOffset) {
                break;
            }
            if (prev == lastEmittedNode) {
                break;
            } else if (tokenUtil.isWhitespaceOrCommentNode(prev)) {
                out.add(0, prev);
            } else if (belongsToDeletedElement(prev)) {
                handleDeletedElement(out, deletedSemanticElements, prev);
                ni.prune();
            } else {
                break;
            }
        }
    } else {
        NodeIterator ni = new NodeIterator(from);
        while (ni.hasNext()) {
            INode next = ni.next();
            if (tokenUtil.isWhitespaceOrCommentNode(next)) {
                out.add(next);
            } else if (next.equals(to)) {
                if (next instanceof ICompositeNode && (GrammarUtil.isDatatypeRuleCall(next.getGrammarElement()) || GrammarUtil.isEnumRuleCall(next.getGrammarElement()) || next.getGrammarElement() instanceof CrossReference)) {
                    while (ni.hasNext()) {
                        INode next2 = ni.next();
                        if (tokenUtil.isWhitespaceOrCommentNode(next2)) {
                            out.add(next2);
                        } else if (next2 instanceof ILeafNode) {
                            break;
                        }
                    }
                    break;
                } else {
                    break;
                }
            } else if (belongsToDeletedElement(next)) {
                handleDeletedElement(out, deletedSemanticElements, next);
                ni.prune();
            } else if (tokenUtil.isToken(next)) {
                break;
            }
        }
    }
    if ((from == null || to == null) && out.isEmpty()) {
        return null;
    } else {
        return filterNodesOfDeletedElements(out, deletedSemanticElements);
    }
}

Example 20 with CrossReference

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

the class AbstractElementFinder method findCrossReferences.

public List<CrossReference> findCrossReferences(EClassifier... targetEClassifiers) {
    Set<EClassifier> classifiers = new HashSet<EClassifier>(Arrays.asList(targetEClassifiers));
    Collection<EClass> classes = Lists.newArrayList(Iterables.filter(classifiers, EClass.class));
    ArrayList<CrossReference> r = new ArrayList<CrossReference>();
    for (AbstractRule ar : getRules()) {
        TreeIterator<EObject> i = ar.eAllContents();
        while (i.hasNext()) {
            EObject o = i.next();
            if (o instanceof CrossReference) {
                CrossReference c = (CrossReference) o;
                if (classifiers.contains(c.getType().getClassifier()))
                    r.add(c);
                else if (c.getType().getClassifier() instanceof EClass)
                    for (EClass cls : classes) if (EcoreUtil2.isAssignableFrom(cls, (EClass) c.getType().getClassifier())) {
                        r.add(c);
                        break;
                    }
                i.prune();
            }
        }
    }
    return r;
}