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

Example 6 with Group

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

the class TreeConstTest method testSingleAssignmentOrNull.

@Test
public void testSingleAssignmentOrNull() throws Exception {
    AbstractRule rule = parseRule("Model: 'foo' name=ID?;");
    Group group = (Group) rule.getAlternatives();
    assertTypes(nfa.getNFA(group).getTypes(), "Model", "null");
    assertTypes(nfa.getNFA(group.getElements().get(0)).getTypesToCheck());
}

Example 7 with Group

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

the class XtextValidationTest method testRuleCallAllowed_10.

@Test
public void testRuleCallAllowed_10() 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: value=STRING;";
    Grammar grammar = (Grammar) getModel(grammarAsText);
    ParserRule rule = (ParserRule) grammar.getRules().get(0);
    RuleCall ruleCall = (RuleCall) ((Group) rule.getAlternatives()).getElements().get(1);
    XtextValidator validator = get(XtextValidator.class);
    ValidatingMessageAcceptor messageAcceptor = new ValidatingMessageAcceptor(null, false, false);
    validator.setMessageAcceptor(messageAcceptor);
    validator.checkUnassignedRuleCallAllowed(ruleCall);
    messageAcceptor.validate();
}

Example 8 with Group

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

the class PartialParsingHelper method hasMandatoryFollowElements.

private boolean hasMandatoryFollowElements(AbstractElement lastParsedElement) {
    if (lastParsedElement.eContainer() instanceof AbstractElement) {
        AbstractElement directParent = (AbstractElement) lastParsedElement.eContainer();
        if (directParent instanceof Group) {
            Group group = (Group) directParent;
            int idx = group.getElements().indexOf(lastParsedElement) + 1;
            for (int i = idx; i < group.getElements().size(); i++) {
                if (isMandatory(group.getElements().get(i)))
                    return true;
            }
        }
        return hasMandatoryFollowElements(directParent);
    }
    return false;
}

Example 9 with Group

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

the class XtextValidationTest method testPredicatedUnorderedGroup_04.

@Test
public void testPredicatedUnorderedGroup_04() throws Exception {
    String grammarAsText = "grammar test with org.eclipse.xtext.common.Terminals\n" + "generate test 'http://test'\n" + "A: =>(name=ID value=B);\n" + "B: name=ID & value=STRING;";
    Grammar grammar = (Grammar) getModel(grammarAsText);
    XtextValidator validator = get(XtextValidator.class);
    ValidatingMessageAcceptor messageAcceptor = new ValidatingMessageAcceptor(null, true, false);
    Group predicatedGroup = (Group) grammar.getRules().get(0).getAlternatives();
    Group groupContent = (Group) predicatedGroup.getElements().get(0);
    Assignment valueAssignment = (Assignment) groupContent.getElements().get(1);
    messageAcceptor.expectedContext(grammar.getRules().get(0).getAlternatives(), valueAssignment.getTerminal(), grammar.getRules().get(1).getAlternatives());
    validator.setMessageAcceptor(messageAcceptor);
    validator.checkUnorderedGroupIsNotPredicated(grammar);
    messageAcceptor.validate();
}

Example 10 with Group

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

the class XtextValidationTest method testRuleCallAllowed_09_335692.

@Test
public void testRuleCallAllowed_09_335692() throws Exception {
    String grammarAsText = "grammar test with org.eclipse.xtext.common.Terminals\n" + "generate test 'http://test'\n" + "Model : value=ID FRAGMENT;\n" + "SubModel : FRAGMENT;\n" + "terminal fragment FRAGMENT: ';';";
    Grammar grammar = (Grammar) getModel(grammarAsText);
    ParserRule rule = (ParserRule) grammar.getRules().get(0);
    RuleCall ruleCall = (RuleCall) ((Group) rule.getAlternatives()).getElements().get(1);
    XtextValidator validator = get(XtextValidator.class);
    ValidatingMessageAcceptor messageAcceptor = new ValidatingMessageAcceptor(ruleCall, true, false);
    validator.setMessageAcceptor(messageAcceptor);
    validator.checkUnassignedRuleCallAllowed(ruleCall);
    validator.checkTerminalFragmentCalledFromTerminalRule(ruleCall);
    messageAcceptor.validate();
}