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

Example 1 with Grammar

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

the class AbstractInternalContentAssistParser method createLookAheadTerminal.

@Override
public LookAheadTerminal createLookAheadTerminal(Token token) {
    Grammar grammar = getGrammar();
    String tokenName = getTokenNames()[token.getType()];
    tokenName = getValueForTokenName(tokenName);
    if (tokenName.charAt(0) == '\'') {
        LookaheadKeyword result = new LookaheadKeyword();
        result.setKeyword(tokenName.substring(1, tokenName.length() - 1));
        result.setToken(token);
        return result;
    }
    LookAheadTerminalRuleCall result = new LookAheadTerminalRuleCall();
    result.setToken(token);
    String ruleName = TokenTool.getLexerRuleName(tokenName);
    if (terminalRules == null)
        terminalRules = GrammarUtil.allTerminalRules(grammar);
    for (TerminalRule rule : terminalRules) {
        if (rule.getName().equalsIgnoreCase(ruleName)) {
            result.setRule(rule);
            return result;
        }
    }
    throw new IllegalArgumentException("tokenType " + token.getType() + " seems to be invalid.");
}

Example 2 with Grammar

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

the class KeywordInspector method inspectKeywordHidesTerminalRule.

public void inspectKeywordHidesTerminalRule(Keyword keyword) {
    AbstractRule container = GrammarUtil.containingRule(keyword);
    if (container instanceof TerminalRule)
        return;
    Grammar grammar = GrammarUtil.getGrammar(container);
    List<TerminalRule> rules = GrammarUtil.allTerminalRules(grammar);
    for (TerminalRule rule : rules) {
        if (!rule.isFragment()) {
            AbstractElement element = rule.getAlternatives();
            if (element instanceof Keyword && Strings.isEmpty(element.getCardinality())) {
                String value = ((Keyword) element).getValue();
                if (value.equals(keyword.getValue()))
                    acceptor.acceptError("The keyword '" + value + "' hides the terminal rule " + rule.getName() + ".", keyword, XtextPackage.Literals.KEYWORD__VALUE, ValidationMessageAcceptor.INSIGNIFICANT_INDEX, null);
            }
        }
    }
}

Example 3 with Grammar

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

the class SuperCallScope method getElements.

@Override
public Iterable<IEObjectDescription> getElements(EObject object) {
    if (object instanceof AbstractRule) {
        Grammar grammar = GrammarUtil.getGrammar(context);
        AbstractRule rule = (AbstractRule) object;
        if (GrammarUtil.getGrammar(rule) == grammar) {
            return Lists.newArrayList(EObjectDescription.create(GrammarUtil.getSimpleName(grammar) + "." + rule.getName(), rule), EObjectDescription.create(grammar.getName() + "." + rule.getName(), rule));
        }
        List<IEObjectDescription> result = Lists.newArrayList(EObjectDescription.create(SUPER + "." + rule.getName(), rule), EObjectDescription.create(GrammarUtil.getSimpleName(grammar) + "." + rule.getName(), rule), EObjectDescription.create(grammar.getName() + "." + rule.getName(), rule));
        AbstractRule contextRule = GrammarUtil.containingRule(context);
        if (contextRule != null && contextRule.getName().equals(rule.getName())) {
            result.add(0, EObjectDescription.create(SUPER, rule));
        }
        return result;
    }
    return Collections.emptyList();
}

Example 4 with Grammar

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

the class XtextFragmentProvider method getEObject.

@Override
public EObject getEObject(Resource resource, String fragment, IFragmentProvider.Fallback fallback) {
    if (!fragment.startsWith(PREFIX))
        return fallback.getEObject(fragment);
    String fragmentWithoutPrefix = fragment.substring(PREFIX.length());
    List<String> splitted = Strings.split(fragmentWithoutPrefix, '/');
    if (splitted.isEmpty()) {
        return fallback.getEObject(fragment);
    }
    String firstPart = splitted.get(0);
    Grammar grammar = null;
    for (EObject content : resource.getContents()) {
        if (content instanceof Grammar) {
            Grammar g = (Grammar) content;
            if (firstPart.equals(g.getName())) {
                grammar = g;
                if (splitted.size() == 1)
                    return grammar;
                break;
            }
        }
    }
    if (splitted.size() == 2) {
        return GrammarUtil.findRuleForName(grammar, splitted.get(1));
    } else {
        return fallback.getEObject(fragment);
    }
}

Example 5 with Grammar

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

the class XtextLinker method linkModel.

@Override
public void linkModel(EObject model, IDiagnosticConsumer consumer) {
    if (model instanceof Grammar) {
        final Xtext2EcoreTransformer transformer = createTransformer((Grammar) model, consumer);
        // TODO duplicate
        transformer.removeGeneratedPackages();
        super.linkModel(model, consumer);
        updateOverriddenRules((Grammar) model);
        try {
            transformer.transform();
        } catch (Exception e) {
            log.error(e.getMessage(), e);
            consumer.consume(new ExceptionDiagnostic(e), Severity.ERROR);
        }
        if (!model.eResource().eAdapters().contains(packageRemover))
            model.eResource().eAdapters().add(packageRemover);
    } else {
        super.linkModel(model, consumer);
    }
}