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

Example 26 with Group

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

the class GrammarParserTest method testPrecedencies_03.

@Test
public void testPrecedencies_03() throws Exception {
    UnorderedGroup group = (UnorderedGroup) getModel("'keyword' 'keyword' & 'keyword' 'keyword'");
    assertNotNull(group);
    assertEquals(2, group.getElements().size());
    assertTrue(group.getElements().get(0) instanceof Group);
    assertTrue(group.getElements().get(1) instanceof Group);
}

Example 27 with Group

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

the class GrammarParserTest method testGroup.

@Test
public void testGroup() throws Exception {
    Group group = (Group) getModel("'keyword' 'keyword'");
    assertNotNull(group);
    assertEquals(2, group.getElements().size());
}

Example 28 with Group

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

the class TreeConstTest method testExpression1.

@Test
public void testExpression1() throws Exception {
    StringBuilder s = new StringBuilder();
    s.append("Expression: Add; ");
    s.append("Add returns Expression: Mult ({Add.left=current} '+' right=Mult)?; ");
    s.append("Mult returns Expression: Prim ({Mult.left=current} '+' right=Prim)?; ");
    s.append("Prim returns Expression: {Val} val=INT | '(' Expression ')'; ");
    Grammar rule = parseGrammar(s.toString());
    AbstractRule expression = rule.getRules().get(0);
    assertTypes(nfa.getNFA(expression.getAlternatives()).getTypes(), "Val", "Add", "Mult");
    assertTypes(nfa.getNFA(expression.getAlternatives()).getTypesToCheck(), "Val", "Add", "Mult");
    AbstractRule add = rule.getRules().get(1);
    assertTypes(nfa.getNFA(add.getAlternatives()).getTypes(), "Val", "Add", "Mult");
    assertTypes(nfa.getNFA(add.getAlternatives()).getTypesToCheck(), "Val", "Add", "Mult");
    Group add_g1 = (Group) ((Group) add.getAlternatives()).getElements().get(1);
    assertTypes(nfa.getNFA(add_g1).getTypes(), "Add");
    assertTypes(nfa.getNFA(add_g1).getTypesToCheck(), "Add");
    assertTypes(nfa.getNFA(add_g1.getElements().get(2)).getTypes(), "Add");
    assertTypes(nfa.getNFA(add_g1.getElements().get(2)).getTypesToCheck());
    AbstractRule mult = rule.getRules().get(2);
    assertTypes(nfa.getNFA(mult.getAlternatives()).getTypes(), "Val", "Add", "Mult");
    assertTypes(nfa.getNFA(mult.getAlternatives()).getTypesToCheck(), "Val", "Add", "Mult");
    AbstractRule prim = rule.getRules().get(3);
    assertTypes(nfa.getNFA(prim.getAlternatives()).getTypes(), "Val", "Add", "Mult");
    assertTypes(nfa.getNFA(prim.getAlternatives()).getTypesToCheck(), "Val", "Add", "Mult");
}

Example 29 with Group

use of org.eclipse.xtext.Group 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 30 with Group

use of org.eclipse.xtext.Group 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);
}