org.eclipse.xtext.Assignment#getTerminal

Source File: XtextValidationTest.java From xtext-core with Eclipse Public License 2.0

6 votes

@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());
}

Source File: Xtext2EcoreInterpretationContext.java From xtext-core with Eclipse Public License 2.0

6 votes

public void addFeature(Assignment assignment) throws TransformationException {
	final String featureName = assignment.getFeature();
	boolean isMultivalue = GrammarUtil.isMultipleAssignment(assignment);
	boolean isContainment = true;
	EClassifierInfo featureTypeInfo;

	if (GrammarUtil.isBooleanAssignment(assignment)) {
		checkNoFragmentRuleCall(assignment.getTerminal());
		EDataType eBoolean = GrammarUtil.findEBoolean(GrammarUtil.getGrammar(assignment));
		featureTypeInfo = getEClassifierInfoOrThrowException(eBoolean, assignment);
		isMultivalue = false;
	}
	else {
		AbstractElement terminal = assignment.getTerminal();
		if (terminal == null) {
			throw new TransformationException(TransformationErrorCode.NoSuchTypeAvailable, "Cannot derive type from incomplete assignment.", assignment);
		}
		checkNoFragmentRuleCall(terminal);
		EClassifier type = getTerminalType(terminal);
		isContainment = isContainmentAssignment(assignment);
		featureTypeInfo = getEClassifierInfoOrThrowException(type, assignment);
	}
	addFeature(featureName, featureTypeInfo, isMultivalue, isContainment, assignment);
}

Source File: XtextProposalProvider.java From xtext-eclipse with Eclipse Public License 2.0

6 votes

/**
 * Do not propose terminal fragments in hidden token sections.
 */
protected void completeHiddenTokens(Assignment assignment, final ContentAssistContext context,
		ICompletionProposalAcceptor acceptor) {
	CrossReference crossReference = (CrossReference) assignment.getTerminal();
	lookupCrossReference(crossReference, context, acceptor, new Predicate<IEObjectDescription>() {
		@Override
		public boolean apply(IEObjectDescription input) {
			if (input.getEClass() == XtextPackage.Literals.TERMINAL_RULE) {
				EObject object = resolve(input, context);
				if (object instanceof TerminalRule)
					return !((TerminalRule) object).isFragment();
			}
			return false;
		}
	});
}

Source File: XtextScopingTest.java From xtext-core with Eclipse Public License 2.0

5 votes

@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);
}

Source File: XtextLinkerTest.java From xtext-core with Eclipse Public License 2.0

5 votes

@Test
public void testImplicitNamedParameterLinking_01() throws Exception {
  StringConcatenation _builder = new StringConcatenation();
  _builder.append("grammar test.Lang with org.eclipse.xtext.common.Terminals");
  _builder.newLine();
  _builder.append("generate test \'http://test\'");
  _builder.newLine();
  _builder.append("Root<MyParam>: rule=Rule<MyParam>;");
  _builder.newLine();
  _builder.append("Rule<MyParam>: name=ID child=Root<MyParam>?;");
  _builder.newLine();
  final String grammarAsString = _builder.toString();
  EObject _model = this.getModel(grammarAsString);
  final Grammar grammar = ((Grammar) _model);
  AbstractRule _head = IterableExtensions.<AbstractRule>head(grammar.getRules());
  final ParserRule rootRule = ((ParserRule) _head);
  AbstractRule _last = IterableExtensions.<AbstractRule>last(grammar.getRules());
  final ParserRule lastRule = ((ParserRule) _last);
  AbstractElement _alternatives = lastRule.getAlternatives();
  AbstractElement _last_1 = IterableExtensions.<AbstractElement>last(((Group) _alternatives).getElements());
  final Assignment lastAssignment = ((Assignment) _last_1);
  AbstractElement _terminal = lastAssignment.getTerminal();
  final RuleCall ruleCall = ((RuleCall) _terminal);
  final NamedArgument argument = IterableExtensions.<NamedArgument>head(ruleCall.getArguments());
  Assert.assertEquals(IterableExtensions.<Parameter>head(rootRule.getParameters()), argument.getParameter());
  Condition _value = argument.getValue();
  Assert.assertEquals(IterableExtensions.<Parameter>head(lastRule.getParameters()), ((ParameterReference) _value).getParameter());
}

Source File: XtextLinkerTest.java From xtext-core with Eclipse Public License 2.0

5 votes

@Test
public void testNamedParameterLinking() throws Exception {
  StringConcatenation _builder = new StringConcatenation();
  _builder.append("grammar test.Lang with org.eclipse.xtext.common.Terminals");
  _builder.newLine();
  _builder.append("generate test \'http://test\'");
  _builder.newLine();
  _builder.append("Root<MyArg>: rule=Rule<MyArg>;");
  _builder.newLine();
  _builder.append("Rule<MyParam>: name=ID child=Root<MyArg=MyParam>?;");
  _builder.newLine();
  final String grammarAsString = _builder.toString();
  EObject _model = this.getModel(grammarAsString);
  final Grammar grammar = ((Grammar) _model);
  AbstractRule _head = IterableExtensions.<AbstractRule>head(grammar.getRules());
  final ParserRule rootRule = ((ParserRule) _head);
  AbstractRule _last = IterableExtensions.<AbstractRule>last(grammar.getRules());
  final ParserRule lastRule = ((ParserRule) _last);
  AbstractElement _alternatives = lastRule.getAlternatives();
  AbstractElement _last_1 = IterableExtensions.<AbstractElement>last(((Group) _alternatives).getElements());
  final Assignment lastAssignment = ((Assignment) _last_1);
  AbstractElement _terminal = lastAssignment.getTerminal();
  final RuleCall ruleCall = ((RuleCall) _terminal);
  final NamedArgument argument = IterableExtensions.<NamedArgument>head(ruleCall.getArguments());
  Assert.assertEquals(IterableExtensions.<Parameter>head(rootRule.getParameters()), argument.getParameter());
  Condition _value = argument.getValue();
  Assert.assertEquals(IterableExtensions.<Parameter>head(lastRule.getParameters()), ((ParameterReference) _value).getParameter());
}

Source File: AbstractSubCodeBuilderFragment.java From sarl with Apache License 2.0

5 votes

/** Replies the rule used for defining the members of the given element.
 *
 * @param description description of the container.
 * @return the rule that is defining the members.
 */
protected AbstractRule getMemberRule(CodeElementExtractor.ElementDescription description) {
	for (final Assignment assignment : GrammarUtil.containedAssignments(description.getGrammarComponent())) {
		if (Objects.equals(getCodeBuilderConfig().getMemberCollectionExtensionGrammarName(), assignment.getFeature())) {
			if (assignment.getTerminal() instanceof RuleCall) {
				return ((RuleCall) assignment.getTerminal()).getRule();
			}
		}
	}
	return null;
}

Source File: AbstractXtendProposalProvider.java From xtext-xtend with Eclipse Public License 2.0

5 votes

public void completeMember_Modifiers(EObject model, Assignment assignment, ContentAssistContext context, ICompletionProposalAcceptor acceptor) {
	if (assignment.getTerminal() instanceof RuleCall) {
		completeRuleCall(((RuleCall)assignment.getTerminal()), context, acceptor);
	}
	if (assignment.getTerminal() instanceof Keyword) {
		// subclasses may override
	}
}

Source File: XbaseProposalProvider.java From xtext-eclipse with Eclipse Public License 2.0

5 votes

protected String getConcreteSyntaxRuleName(Assignment assignment) {
	AbstractElement terminal = assignment.getTerminal();
	if (terminal instanceof CrossReference) {
		return getConcreteSyntaxRuleName((CrossReference) terminal);
	}
	String ruleName = null;
	if (terminal instanceof RuleCall) {
		ruleName = getConcreteSyntaxRuleName((RuleCall) terminal);
	}
	return ruleName;
}

Source File: XtextProposalProvider.java From xtext-eclipse with Eclipse Public License 2.0

5 votes

/**
 * Do not propose enum and parser rules inside of terminal rules.
 */
@Override
public void completeTerminalRuleCall_Rule(EObject model, Assignment assignment, ContentAssistContext context,
		ICompletionProposalAcceptor acceptor) {
	CrossReference crossReference = (CrossReference) assignment.getTerminal();
	lookupCrossReference(crossReference, context, acceptor, new Predicate<IEObjectDescription>() {
		@Override
		public boolean apply(IEObjectDescription input) {
			return input.getEClass() == XtextPackage.Literals.TERMINAL_RULE;
		}
	});
}

Source File: XtextParserTest.java From xtext-core with Eclipse Public License 2.0

5 votes

@Test public void testParseCrossRef() throws Exception {
		Grammar model = (Grammar) getModel("grammar foo with org.eclipse.xtext.common.Terminals " +
				"generate foo 'bar' as boo " +
				"Model returns boo::Model : 'a' stuff+=Stuff*; " +
				"Stuff returns boo::Stuff : 'stuff' name=ID refersTo=[boo::Stuff];");
		AbstractRule rule = model.getRules().get(1);
		Group group = (Group) rule.getAlternatives();
		Assignment assignment = (Assignment) group.getElements().get(2);
		CrossReference reference = (CrossReference) assignment.getTerminal();
		assertEquals("boo", reference.getType().getMetamodel().getAlias());
//		assertWithXtend("'boo'", "eAllContents.typeSelect(xtext::CrossReference).first().type.metamodel.alias", model);
		assertEquals("Stuff", reference.getType().getClassifier().getName());
//		assertWithXtend("'Stuff'", "eAllContents.typeSelect(xtext::CrossReference).first().type.classifier.name", model);
	}

Source File: XtextLinkerTest.java From xtext-core with Eclipse Public License 2.0

5 votes

@Test
public void testImplicitNamedParameterLinking_02() throws Exception {
  StringConcatenation _builder = new StringConcatenation();
  _builder.append("grammar test.Lang with org.eclipse.xtext.common.Terminals");
  _builder.newLine();
  _builder.append("generate test \'http://test\'");
  _builder.newLine();
  _builder.append("Root<MyParam>: rule=Rule<true>;");
  _builder.newLine();
  _builder.append("Rule<MyParam>: name=ID child=Root<false>?;");
  _builder.newLine();
  final String grammarAsString = _builder.toString();
  EObject _model = this.getModel(grammarAsString);
  final Grammar grammar = ((Grammar) _model);
  AbstractRule _head = IterableExtensions.<AbstractRule>head(grammar.getRules());
  final ParserRule rootRule = ((ParserRule) _head);
  AbstractRule _last = IterableExtensions.<AbstractRule>last(grammar.getRules());
  final ParserRule lastRule = ((ParserRule) _last);
  AbstractElement _alternatives = lastRule.getAlternatives();
  AbstractElement _last_1 = IterableExtensions.<AbstractElement>last(((Group) _alternatives).getElements());
  final Assignment lastAssignment = ((Assignment) _last_1);
  AbstractElement _terminal = lastAssignment.getTerminal();
  final RuleCall ruleCall = ((RuleCall) _terminal);
  final NamedArgument argument = IterableExtensions.<NamedArgument>head(ruleCall.getArguments());
  Assert.assertEquals(IterableExtensions.<Parameter>head(rootRule.getParameters()), argument.getParameter());
  Condition _value = argument.getValue();
  Assert.assertFalse(((LiteralCondition) _value).isTrue());
}

Source File: CrossRefTest.java From xtext-core with Eclipse Public License 2.0

5 votes

@Test public void testGetLinkedObjects() throws Exception {
	XtextResource r = getResourceFromString("type TypeA extends TypeB type TypeB extends TypeA type AnotherType extends TypeA");
	Main model = (Main) r.getParseResult().getRootASTElement();
	ILeafNode leaf = NodeModelUtils.findLeafNodeAtOffset(r.getParseResult().getRootNode(), 6);

	assertEquals(3, model.getTypes().size());

	EObject context = model.getTypes().get(0);
	Assignment asExtends = get(LangATestLanguageGrammarAccess.class).getTypeAccess().getExtendsAssignment_2_1();
	CrossReference xref = (CrossReference) asExtends.getTerminal();
	EReference ref = GrammarUtil.getReference(xref, context.eClass());

	assertEquals(1, getLinkingService().getLinkedObjects(context, ref, leaf).size());
}

Source File: ParseTreeConstructorUtil.java From xtext-extras with Eclipse Public License 2.0

5 votes

public static List<AbstractElement> getNestedElementsFromAssignment(Assignment assignment) {
	AbstractElement t = assignment.getTerminal();
	ArrayList<AbstractElement> r = new ArrayList<AbstractElement>();
	if (t instanceof Keyword || t instanceof RuleCall || t instanceof CrossReference)
		r.add(t);
	else {
		r.addAll(GrammarUtil.containedKeywords(t));
		r.addAll(GrammarUtil.containedRuleCalls(t));
		r.addAll(GrammarUtil.containedCrossReferences(t));
	}
	return r;
}

Source File: XbaseIdeContentProposalProvider.java From xtext-extras with Eclipse Public License 2.0

5 votes

protected void completeXMemberFeatureCall(final EObject model, final Assignment assignment, final ContentAssistContext context, final IIdeContentProposalAcceptor acceptor) {
  if ((model instanceof XMemberFeatureCall)) {
    AbstractElement _terminal = assignment.getTerminal();
    this.createReceiverProposals(((XMemberFeatureCall)model).getMemberCallTarget(), 
      ((CrossReference) _terminal), context, acceptor);
  } else {
    if ((model instanceof XAssignment)) {
      AbstractElement _terminal_1 = assignment.getTerminal();
      this.createReceiverProposals(((XAssignment)model).getAssignable(), 
        ((CrossReference) _terminal_1), context, acceptor);
    }
  }
}

Source File: XbaseIdeContentProposalProvider.java From xtext-extras with Eclipse Public License 2.0

5 votes

protected void completeBinaryOperation(final EObject model, final Assignment assignment, final ContentAssistContext context, final IIdeContentProposalAcceptor acceptor) {
  if ((model instanceof XBinaryOperation)) {
    int _length = context.getPrefix().length();
    boolean _tripleEquals = (_length == 0);
    if (_tripleEquals) {
      final INode currentNode = context.getCurrentNode();
      final int offset = currentNode.getOffset();
      final int endOffset = currentNode.getEndOffset();
      if ((((offset < context.getOffset()) && (endOffset >= context.getOffset())) && (currentNode.getGrammarElement() instanceof CrossReference))) {
        return;
      }
    }
    int _endOffset = NodeModelUtils.findActualNodeFor(model).getEndOffset();
    int _offset = context.getOffset();
    boolean _lessEqualsThan = (_endOffset <= _offset);
    if (_lessEqualsThan) {
      AbstractElement _terminal = assignment.getTerminal();
      this.createReceiverProposals(((XExpression) model), ((CrossReference) _terminal), context, acceptor);
    } else {
      AbstractElement _terminal_1 = assignment.getTerminal();
      this.createReceiverProposals(((XBinaryOperation)model).getLeftOperand(), 
        ((CrossReference) _terminal_1), context, acceptor);
    }
  } else {
    final EObject previousModel = context.getPreviousModel();
    if ((previousModel instanceof XExpression)) {
      if (((context.getPrefix().length() == 0) && (NodeModelUtils.getNode(previousModel).getEndOffset() > context.getOffset()))) {
        return;
      }
      AbstractElement _terminal_2 = assignment.getTerminal();
      this.createReceiverProposals(((XExpression)previousModel), 
        ((CrossReference) _terminal_2), context, acceptor);
    }
  }
}

Source File: AbstractSARLProposalProvider.java From sarl with Apache License 2.0

5 votes

public void completeEventMember_Modifiers(EObject model, Assignment assignment, ContentAssistContext context, ICompletionProposalAcceptor acceptor) {
	if (assignment.getTerminal() instanceof RuleCall) {
		completeRuleCall(((RuleCall)assignment.getTerminal()), context, acceptor);
	}
	if (assignment.getTerminal() instanceof Keyword) {
		// subclasses may override
	}
}

Source File: AbstractGamlProposalProvider.java From gama with GNU General Public License v3.0

5 votes

public void completeClassicFacet_Key(EObject model, Assignment assignment, ContentAssistContext context, ICompletionProposalAcceptor acceptor) {
	if (assignment.getTerminal() instanceof RuleCall) {
		completeRuleCall(((RuleCall)assignment.getTerminal()), context, acceptor);
	}
	if (assignment.getTerminal() instanceof Keyword) {
		// subclasses may override
	}
}

Source File: AbstractGamlProposalProvider.java From gama with GNU General Public License v3.0

5 votes

public void completeArgumentPair_Op(EObject model, Assignment assignment, ContentAssistContext context, ICompletionProposalAcceptor acceptor) {
	if (assignment.getTerminal() instanceof RuleCall) {
		completeRuleCall(((RuleCall)assignment.getTerminal()), context, acceptor);
	}
	if (assignment.getTerminal() instanceof Alternatives) {
		completeRuleCall(((RuleCall)((Alternatives)assignment.getTerminal()).getElements().get(0)), context, acceptor);
		completeRuleCall(((RuleCall)((Alternatives)assignment.getTerminal()).getElements().get(1)), context, acceptor);
		completeRuleCall(((RuleCall)((Alternatives)assignment.getTerminal()).getElements().get(2)), context, acceptor);
		completeRuleCall(((RuleCall)((Alternatives)assignment.getTerminal()).getElements().get(3)), context, acceptor);
		completeRuleCall(((RuleCall)((Alternatives)assignment.getTerminal()).getElements().get(4)), context, acceptor);
	}
}

Source File: XtextLinkerTest.java From xtext-core with Eclipse Public License 2.0

4 votes

@Test
public void testNamedParameterAdjustment() throws Exception {
  StringConcatenation _builder = new StringConcatenation();
  _builder.append("grammar test.Lang with org.eclipse.xtext.common.Terminals");
  _builder.newLine();
  _builder.append("generate test \'http://test\'");
  _builder.newLine();
  _builder.append("Root<MyParam>: rule=Rule<true>;");
  _builder.newLine();
  _builder.append("Rule<MyParam>: name=ID child=Root<false>?;");
  _builder.newLine();
  final String grammarAsString = _builder.toString();
  EObject _model = this.getModel(grammarAsString);
  final Grammar grammar = ((Grammar) _model);
  final ResourceSet resourceSet = grammar.eResource().getResourceSet();
  final Resource otherResource = resourceSet.createResource(URI.createURI("other.xtext"));
  StringConcatenation _builder_1 = new StringConcatenation();
  _builder_1.append("grammar test.SubLang with test.Lang");
  _builder_1.newLine();
  _builder_1.append("import \'http://test\'");
  _builder_1.newLine();
  _builder_1.append("Root<MyParam>: rule=super::Rule<true>;");
  _builder_1.newLine();
  LazyStringInputStream _lazyStringInputStream = new LazyStringInputStream(_builder_1.toString());
  otherResource.load(_lazyStringInputStream, null);
  EObject _head = IterableExtensions.<EObject>head(otherResource.getContents());
  final Grammar subGrammar = ((Grammar) _head);
  AbstractRule _head_1 = IterableExtensions.<AbstractRule>head(subGrammar.getRules());
  final ParserRule rootRule = ((ParserRule) _head_1);
  AbstractRule _last = IterableExtensions.<AbstractRule>last(grammar.getRules());
  final ParserRule parentRule = ((ParserRule) _last);
  AbstractElement _alternatives = parentRule.getAlternatives();
  AbstractElement _last_1 = IterableExtensions.<AbstractElement>last(((Group) _alternatives).getElements());
  final Assignment lastAssignment = ((Assignment) _last_1);
  AbstractElement _terminal = lastAssignment.getTerminal();
  final RuleCall ruleCall = ((RuleCall) _terminal);
  final NamedArgument argument = IterableExtensions.<NamedArgument>head(ruleCall.getArguments());
  Assert.assertEquals(IterableExtensions.<Parameter>head(rootRule.getParameters()), argument.getParameter());
  Condition _value = argument.getValue();
  Assert.assertFalse(((LiteralCondition) _value).isTrue());
}

Java Code Examples for org.eclipse.xtext.Assignment#getTerminal()