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

Example 41 with AbstractElement

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

the class CrossReferenceImpl method basicSetTerminal.

/**
 * <!-- begin-user-doc -->
 * <!-- end-user-doc -->
 * @generated
 */
public NotificationChain basicSetTerminal(AbstractElement newTerminal, NotificationChain msgs) {
    AbstractElement oldTerminal = terminal;
    terminal = newTerminal;
    if (eNotificationRequired()) {
        ENotificationImpl notification = new ENotificationImpl(this, Notification.SET, XtextPackage.CROSS_REFERENCE__TERMINAL, oldTerminal, newTerminal);
        if (msgs == null)
            msgs = notification;
        else
            msgs.add(notification);
    }
    return msgs;
}

Example 42 with AbstractElement

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

the class Xtext2EcoreTransformer method deriveFeatures.

private Xtext2EcoreInterpretationContext deriveFeatures(final Xtext2EcoreInterpretationContext context, AbstractElement element) {
    XtextSwitch<Xtext2EcoreInterpretationContext> visitor = new XtextSwitch<Xtext2EcoreInterpretationContext>() {

        /*
			 * Used for Alternatives and UnorderedGroups
			 */
        @Override
        public Xtext2EcoreInterpretationContext caseCompoundElement(CompoundElement object) {
            List<Xtext2EcoreInterpretationContext> contexts = new ArrayList<Xtext2EcoreInterpretationContext>();
            for (AbstractElement group : object.getElements()) {
                contexts.add(deriveFeatures(context, group));
            }
            Xtext2EcoreInterpretationContext result = context;
            if (!contexts.isEmpty()) {
                if (GrammarUtil.isOptionalCardinality(object)) {
                    contexts.add(0, result);
                } else {
                    result = contexts.get(0);
                }
                result = result.mergeSpawnedContexts(contexts);
            }
            return result;
        }

        @Override
        public Xtext2EcoreInterpretationContext caseAssignment(Assignment object) {
            try {
                context.addFeature(object);
            } catch (TransformationException ex) {
                reportError(ex);
            }
            return context;
        }

        @Override
        public Xtext2EcoreInterpretationContext caseGroup(Group object) {
            return visitElements(object, object.getElements());
        }

        private Xtext2EcoreInterpretationContext visitElements(AbstractElement caller, List<AbstractElement> elementsToProcess) {
            Xtext2EcoreInterpretationContext result = deriveFeatures(context.spawnContextForGroup(), elementsToProcess);
            if (GrammarUtil.isMultipleCardinality(caller)) {
                result = deriveFeatures(result.spawnContextForGroup(), elementsToProcess);
            }
            if (GrammarUtil.isOptionalCardinality(caller)) {
                result = result.mergeSpawnedContexts(Arrays.asList(context, result));
            }
            return result;
        }

        @Override
        public Xtext2EcoreInterpretationContext caseAlternatives(Alternatives object) {
            List<Xtext2EcoreInterpretationContext> contexts = newArrayList();
            if (GrammarUtil.isOptionalCardinality(object)) {
                contexts.add(context);
            }
            for (AbstractElement alternative : object.getElements()) {
                contexts.add(deriveFeatures(context.spawnContextForGroup(), alternative));
            }
            Xtext2EcoreInterpretationContext result = context.mergeSpawnedContexts(contexts);
            if (GrammarUtil.isMultipleCardinality(object)) {
                for (AbstractElement alternative : object.getElements()) {
                    deriveFeatures(result.spawnContextForGroup(), alternative);
                }
            }
            return result;
        }

        @Override
        public Xtext2EcoreInterpretationContext caseRuleCall(RuleCall object) {
            AbstractRule calledRule = object.getRule();
            if (isWildcardFragment(calledRule)) {
                AbstractElement ruleBody = calledRule.getAlternatives();
                if (ruleBody != null) {
                    return visitElements(object, Collections.singletonList(ruleBody));
                }
                return context;
            }
            if (isParserRuleFragment(calledRule)) {
                return context;
            }
            if (!GrammarUtil.isOptionalCardinality(object)) {
                // announced during the first iteration
                if (calledRule != null && calledRule instanceof ParserRule && !GrammarUtil.isDatatypeRule((ParserRule) calledRule)) {
                    try {
                        EClassifierInfo eClassifierInfo = findOrCreateEClassifierInfo(calledRule);
                        return context.spawnContextWithCalledRule(eClassifierInfo, object);
                    } catch (TransformationException e) {
                        reportError(e);
                    }
                }
            }
            return context;
        }

        @Override
        public Xtext2EcoreInterpretationContext caseAction(Action object) {
            try {
                TypeRef actionTypeRef = object.getType();
                EClassifierInfo actionType = findOrCreateEClassifierInfo(actionTypeRef, null, true);
                EClassifierInfo currentCompatibleType = context.getCurrentCompatibleType();
                Xtext2EcoreInterpretationContext ctx = context.spawnContextWithReferencedType(actionType, object);
                if (object.getFeature() != null) {
                    ctx.addFeature(object.getFeature(), currentCompatibleType, GrammarUtil.isMultipleAssignment(object), true, object);
                }
                return ctx;
            } catch (TransformationException e) {
                reportError(e);
            }
            return context;
        }

        @Override
        public Xtext2EcoreInterpretationContext defaultCase(EObject object) {
            return context;
        }
    };
    return visitor.doSwitch(element);
}

Example 43 with AbstractElement

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

the class CardinalityAwareEcoreFactory method set.

@Override
public void set(EObject object, String feature, Object value, String ruleName, INode node) throws ValueConverterException {
    if (object instanceof AbstractElement && XtextPackage.Literals.ABSTRACT_ELEMENT__CARDINALITY.getName().equals(feature)) {
        AbstractElement casted = (AbstractElement) object;
        String knownCardinality = casted.getCardinality();
        if (knownCardinality != null) {
            String newCardinality = String.valueOf(getTokenAsStringIfPossible(value));
            if ("*".equals(newCardinality)) {
                casted.setCardinality("*");
            } else if ("*".equals(knownCardinality)) {
            // nothing to do
            } else if ("+".equals(knownCardinality)) {
                if ("?".equals(newCardinality)) {
                    casted.setCardinality("*");
                }
            } else if ("?".equals(knownCardinality)) {
                if ("+".equals(newCardinality)) {
                    casted.setCardinality("*");
                }
            }
            throw new MoreThanOneCardinalityException(newCardinality, casted.getCardinality(), node);
        }
    }
    super.set(object, feature, value, ruleName, node);
}

Example 44 with AbstractElement

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

the class Context2NameFunction method getUniqueActionName.

public String getUniqueActionName(Action action) {
    List<Integer> indices = Lists.newArrayList();
    EObject current = action;
    while (current.eContainer() instanceof AbstractElement) {
        indices.add(current.eContainer().eContents().indexOf(current));
        current = current.eContainer();
    }
    Collections.reverse(indices);
    return action.getType().getClassifier().getName() + "_" + Joiner.on('_').join(indices);
}

Example 45 with AbstractElement

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

the class SemanticSequencerNfaProvider method initContentValidationNeeded.

protected void initContentValidationNeeded(EClass clazz, Nfa<ISemState> nfa) {
    Multimap<EStructuralFeature, AbstractElement> assignments = LinkedHashMultimap.create();
    Set<ISemState> states = new NfaUtil().collect(nfa);
    for (ISemState state : states) if (state.getFeature() != null)
        assignments.put(state.getFeature(), state.getAssignedGrammarElement());
    boolean[] validationNeeded = new boolean[clazz.getFeatureCount()];
    for (EStructuralFeature feature : clazz.getEAllStructuralFeatures()) validationNeeded[clazz.getFeatureID(feature)] = isContentValidationNeeded(assignments.get(feature));
    for (ISemState state : states) if (state.getFeature() != null && validationNeeded[state.getFeatureID()])
        ((SemState) state).contentValidationNeeded = Lists.newArrayList(assignments.get(state.getFeature()));
    else
        ((SemState) state).contentValidationNeeded = Collections.emptyList();
}