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

Example 86 with RuleCall

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

the class XtextValidationTest method testRuleCallAllowed_11.

@Test
public void testRuleCallAllowed_11() throws Exception {
    String grammarAsText = "grammar test with org.eclipse.xtext.common.Terminals\n" + "generate test 'http://test'\n" + "Model: name=ID Fragment;\n" + "fragment Fragment: Other;\n" + "Other: name=ID;";
    Grammar grammar = (Grammar) getModel(grammarAsText);
    ParserRule rule = (ParserRule) grammar.getRules().get(1);
    RuleCall ruleCall = (RuleCall) rule.getAlternatives();
    XtextValidator validator = get(XtextValidator.class);
    ValidatingMessageAcceptor messageAcceptor = new ValidatingMessageAcceptor(ruleCall, true, false);
    validator.setMessageAcceptor(messageAcceptor);
    try {
        validator.checkUnassignedRuleCallAllowed(ruleCall);
        fail();
    } catch (RuntimeException e) {
        assertEquals("org.eclipse.xtext.validation.GuardException", e.getClass().getName());
    }
    messageAcceptor.validate();
}

Example 87 with RuleCall

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

the class AntlrGrammarGenUtil method getPredicatedElement.

/**
 * @since 2.9
 */
public static AbstractElement getPredicatedElement(AbstractElement element) {
    if (element.isPredicated()) {
        return doGetPredicatedElement(element);
    }
    if (element instanceof Assignment) {
        return getPredicatedElement(((Assignment) element).getTerminal());
    }
    if (element instanceof RuleCall) {
        final RuleCall ruleCall = (RuleCall) element;
        final AbstractRule calledRule = ruleCall.getRule();
        Group group = (Group) calledRule.getAlternatives();
        AbstractElement first = group.getElements().get(0);
        AbstractElement result = getPredicatedElement(first);
        if (ruleCall.getArguments().isEmpty()) {
            return result;
        }
        EcoreUtil.Copier copier = new EcoreUtil.Copier() {

            private static final long serialVersionUID = 1L;

            @Override
            public EObject copy(EObject eObject) {
                if (eObject instanceof ParameterReference) {
                    ParameterReference paramRef = (ParameterReference) eObject;
                    Parameter parameter = paramRef.getParameter();
                    if (calledRule == GrammarUtil.containingRule(parameter)) {
                        for (NamedArgument givenArgument : ruleCall.getArguments()) {
                            if (givenArgument.getParameter() == parameter) {
                                EObject result = copy(givenArgument.getValue());
                                return result;
                            }
                        }
                        throw new IllegalStateException();
                    }
                }
                return super.copy(eObject);
            }
        };
        AbstractElement clone = (AbstractElement) copier.copy(result);
        copier.copyReferences();
        return clone;
    }
    return doGetPredicatedElement(element);
}

Example 88 with RuleCall

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

the class XtextScopingTest method testScope_01.

@Test
public void testScope_01() {
    ParserRule rule = (ParserRule) GrammarUtil.findRuleForName(grammar, "AbstractCallOverridenParserRule");
    assertNotNull(rule);
    Group group = (Group) rule.getAlternatives();
    Assignment ass = (Assignment) group.getElements().get(1);
    assertNotNull(ass);
    RuleCall call = (RuleCall) ass.getTerminal();
    AbstractRule calledRule = call.getRule();
    assertNotNull(calledRule);
    XtextGrammarAccess ga = (XtextGrammarAccess) get(IGrammarAccess.class);
    String text = get(ICrossReferenceSerializer.class).serializeCrossRef(call, ga.getRuleCallAccess().getRuleAbstractRuleCrossReference_0_0(), calledRule, null);
    assertNotNull(text);
    assertEquals(calledRule.getName(), text);
}

Example 89 with RuleCall

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

the class XtextValidationTest method testRuleCalledSuper.

@Test
public void testRuleCalledSuper() throws Exception {
    XtextResource resource = getResourceFromString("grammar com.acme.Bar with org.eclipse.xtext.common.Terminals\n" + "generate metamodel 'myURI'\n" + "Model: super=super;\n" + "super: name=ID;");
    IResourceValidator validator = get(IResourceValidator.class);
    List<Issue> issues = validator.validate(resource, CheckMode.FAST_ONLY, CancelIndicator.NullImpl);
    assertEquals(issues.toString(), 1, issues.size());
    assertEquals("Discouraged rule name 'super'", issues.get(0).getMessage());
    Grammar grammar = (Grammar) resource.getContents().get(0);
    AbstractRule model = grammar.getRules().get(0);
    Assignment assignment = (Assignment) model.getAlternatives();
    RuleCall ruleCall = (RuleCall) assignment.getTerminal();
    assertSame(grammar.getRules().get(1), ruleCall.getRule());
}

Example 90 with RuleCall

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

the class XtextValidationTest method testRuleCallAllowed_12.

@Test
public void testRuleCallAllowed_12() throws Exception {
    String grammarAsText = "grammar test with org.eclipse.xtext.common.Terminals\n" + "generate test 'http://test'\n" + "Model: name=ID Fragment;\n" + "fragment Fragment: Other;\n" + "fragment Other: name=ID;";
    Grammar grammar = (Grammar) getModel(grammarAsText);
    ParserRule rule = (ParserRule) grammar.getRules().get(1);
    RuleCall ruleCall = (RuleCall) rule.getAlternatives();
    XtextValidator validator = get(XtextValidator.class);
    ValidatingMessageAcceptor messageAcceptor = new ValidatingMessageAcceptor(null, false, false);
    validator.setMessageAcceptor(messageAcceptor);
    validator.checkUnassignedRuleCallAllowed(ruleCall);
    messageAcceptor.validate();
}