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

Example 26 with AbstractElement

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

the class TreeConstState method getStatus.

public Status getStatus() {
    if (distances == null) {
        AbstractElement rootEle = containingRule(element).getAlternatives();
        builder.getState(rootEle).initStatus();
    }
    return getStatusInternal();
}

Example 27 with AbstractElement

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

the class TreeConstState method getEndDistances.

protected Map<TreeConstState, Integer> getEndDistances() {
    AbstractElement rootEle = containingRule(element).getAlternatives();
    TreeConstState root = builder.getState(rootEle);
    if (root.endDistances == null)
        root.endDistances = Maps.newLinkedHashMap();
    return root.endDistances;
}

Example 28 with AbstractElement

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

the class AbstractPDAProvider method createState.

/**
 * @since 2.0
 */
protected PDAState createState(PDAContext<CTX> ctx, RuleCallStackElement stack, INFAState<?, ?> fromNfa, EClass constructedType, boolean returning, boolean canReturn, Set<Pair<Boolean, INFAState<?, ?>>> visited) {
    Set<Pair<Boolean, INFAState<?, ?>>> visited2 = Sets.newHashSet();
    if (stack == null || !canReachContextEnd(ctx, stack.cloneWithoutVisited(), fromNfa, constructedType, returning, canReturn, visited2))
        return null;
    if (constructedType == null)
        constructedType = getConstructedType(fromNfa.getGrammarElement());
    AbstractElement ge = fromNfa.getGrammarElement();
    PDAState result = null;
    if (canEnterRuleCall(fromNfa)) {
        if (returning) {
            if ((result = ctx.ruleCallExit.get(fromNfa)) == null)
                ctx.ruleCallExit.put(fromNfa, result = createState(PDAStateType.RULECALL_EXIT, ge));
        } else {
            if ((result = ctx.ruleCallEnter.get(fromNfa)) == null)
                ctx.ruleCallEnter.put(fromNfa, result = createState(PDAStateType.RULECALL_ENTER, ge));
        }
    } else {
        if ((result = ctx.elements.get(fromNfa)) == null)
            ctx.elements.put(fromNfa, result = createState(PDAStateType.ELEMENT, ge));
    }
    if (!visited.add(Tuples.<Boolean, INFAState<?, ?>>create(returning, fromNfa)))
        return result;
    if (!returning && canEnterRuleCall(fromNfa)) {
        if (stack.hasEnteredTwice(fromNfa))
            return result;
        stack = stackPush(stack, fromNfa);
        visited = Sets.newHashSet();
    }
    if (result.followers == null || result.followers == Collections.EMPTY_SET) {
        result.followers = Sets.newHashSet();
    }
    if (isFinalState(ctx.context, fromNfa, returning, canReturn))
        result.followers.add(ctx.stop);
    for (INFAState<?, ?> follower : getFollowers(ctx.context, fromNfa, returning, canReturn)) {
        boolean folCanReturn = !canEnterRuleCall(follower);
        boolean folReturning = follower.hasOutgoingRuleCall() && folCanReturn;
        PDAState r = createState(ctx, stack, follower, constructedType, folReturning, folCanReturn, visited);
        if (r != null)
            result.followers.add(r);
    }
    if (canReturn && fromNfa.isEndState() && stack != null && stack.getRuleCall() != null) {
        visited = Sets.newHashSet();
        PDAState r = createState(ctx, stack.getParent(), stack.getRuleCall(), constructedType, true, true, visited);
        if (r != null)
            result.followers.add(r);
    }
    return result;
}

Example 29 with AbstractElement

use of org.eclipse.xtext.AbstractElement 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 AbstractElement

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

the class AbstractFormattingConfig method addLocatorSemantic.

protected void addLocatorSemantic(ElementLocator locator) {
    List<AbstractElement> before = getAbstractElements(locator.before);
    List<AbstractElement> after = getAbstractElements(locator.after);
    if (before != null && after != null)
        for (AbstractElement b : before) for (AbstractElement a : after) addLocatorSemantic(locator, b, a);
    else if (before != null)
        for (AbstractElement b : before) addLocatorSemantic(locator, b, null);
    else if (after != null)
        for (AbstractElement a : after) addLocatorSemantic(locator, null, a);
}