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

Example 21 with AbstractMetamodelDeclaration

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

the class XtextLinker method setDefaultValueImpl.

@Override
protected void setDefaultValueImpl(EObject obj, EReference ref, IDiagnosticProducer producer) {
    if (XtextPackage.eINSTANCE.getTypeRef_Metamodel() == ref) {
        final TypeRef typeRef = (TypeRef) obj;
        final String typeRefName = GrammarUtil.getTypeRefName(typeRef);
        final List<EObject> metamodels = XtextMetamodelReferenceHelper.findBestMetamodelForType(typeRef, "", typeRefName, scopeProvider.getScope(typeRef, ref));
        if (metamodels.isEmpty() || metamodels.size() > 1)
            producer.addDiagnostic(new DiagnosticMessage("Cannot find meta model for type '" + typeRefName + "'", Severity.ERROR, null));
        else
            typeRef.setMetamodel((AbstractMetamodelDeclaration) metamodels.get(0));
    } else if (XtextPackage.eINSTANCE.getCrossReference_Terminal() == ref) {
        AbstractRule rule = GrammarUtil.findRuleForName(GrammarUtil.getGrammar(obj), "ID");
        if (rule == null)
            producer.addDiagnostic(new DiagnosticMessage("Cannot resolve implicit reference to rule 'ID'", Severity.ERROR, null));
        else {
            RuleCall call = XtextFactory.eINSTANCE.createRuleCall();
            call.setRule(rule);
            ((CrossReference) obj).setTerminal(call);
        }
    } else if (XtextPackage.eINSTANCE.getNamedArgument_Parameter() == ref) {
        final NamedArgument argument = (NamedArgument) obj;
        if (!argument.isCalledByName()) {
            RuleCall ruleCall = EcoreUtil2.getContainerOfType(argument, RuleCall.class);
            AbstractRule calledRule = ruleCall.getRule();
            if (!(calledRule instanceof ParserRule)) {
                producer.addDiagnostic(new DiagnosticMessage("Arguments can only be used with parser rules.", Severity.ERROR, null));
                return;
            }
            if (!calledRule.eIsProxy()) {
                ParserRule casted = (ParserRule) calledRule;
                int idx = ruleCall.getArguments().indexOf(argument);
                if (idx < casted.getParameters().size()) {
                    argument.setParameter(casted.getParameters().get(idx));
                    return;
                } else if (casted.getParameters().size() == 0) {
                    producer.addDiagnostic(new DiagnosticMessage("Rule " + calledRule.getName() + " has no arguments.", Severity.ERROR, null));
                } else {
                    String message = "Invalid number of arguments for rule " + calledRule.getName() + ", expecting " + casted.getParameters().size() + " but was " + (idx + 1);
                    producer.addDiagnostic(new DiagnosticMessage(message, Severity.ERROR, null));
                }
            }
        }
    } else {
        super.setDefaultValueImpl(obj, ref, producer);
    }
}

Example 22 with AbstractMetamodelDeclaration

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

the class XtextScopeProvider method getScope.

@Override
public IScope getScope(final EObject context, EReference reference) {
    if (reference == XtextPackage.eINSTANCE.getTypeRef_Classifier()) {
        if (context instanceof TypeRef) {
            final TypeRef typeRef = (TypeRef) context;
            final AbstractMetamodelDeclaration metaModel = typeRef.getMetamodel();
            if (metaModel != null) {
                EPackage pack = metaModel.getEPackage();
                if (pack != null)
                    return createClassifierScope(pack.getEClassifiers());
            } else {
                return createReferencedPackagesScope(GrammarUtil.getGrammar(context));
            }
        } else {
            return createReferencedPackagesScope(GrammarUtil.getGrammar(context));
        }
        return IScope.NULLSCOPE;
    }
    if (reference == XtextPackage.eINSTANCE.getEnumLiteralDeclaration_EnumLiteral()) {
        final EnumRule rule = GrammarUtil.containingEnumRule(context);
        if (rule.getType() != null && rule.getType().getClassifier() != null && rule.getType().getClassifier() instanceof EEnum) {
            return createEnumLiteralsScope((EEnum) rule.getType().getClassifier());
        }
        return IScope.NULLSCOPE;
    }
    if (reference == XtextPackage.eINSTANCE.getGrammar_UsedGrammars()) {
        return globalScopeProvider.getScope(context.eResource(), reference, new Predicate<IEObjectDescription>() {

            @Override
            public boolean apply(IEObjectDescription input) {
                return !input.getEObjectURI().equals(EcoreUtil.getURI(context));
            }
        });
    }
    if (reference == XtextPackage.eINSTANCE.getRuleCall_Rule()) {
        return createScope(context.eResource(), reference.getEReferenceType(), new SuperCallScope(context));
    }
    if (reference == XtextPackage.eINSTANCE.getParameterReference_Parameter()) {
        ParserRule rule = GrammarUtil.containingParserRule(context);
        if (rule == null) {
            return IScope.NULLSCOPE;
        }
        return Scopes.scopeFor(rule.getParameters());
    }
    if (reference == XtextPackage.eINSTANCE.getNamedArgument_Parameter()) {
        RuleCall ruleCall = EcoreUtil2.getContainerOfType(context, RuleCall.class);
        if (ruleCall == null) {
            return IScope.NULLSCOPE;
        }
        AbstractRule referencedRule = ruleCall.getRule();
        if (referencedRule instanceof ParserRule) {
            return Scopes.scopeFor(((ParserRule) referencedRule).getParameters());
        }
        return IScope.NULLSCOPE;
    }
    return createScope(context.eResource(), reference.getEReferenceType(), IScope.NULLSCOPE);
}

Example 23 with AbstractMetamodelDeclaration

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

the class XtextTransientValueService method isTransient.

@Override
public boolean isTransient(EObject owner, EStructuralFeature feature, int index) {
    if (feature == XtextPackage.eINSTANCE.getTypeRef_Metamodel()) {
        final TypeRef typeRef = (TypeRef) owner;
        final AbstractMetamodelDeclaration m = typeRef.getMetamodel();
        if (m == null || Strings.isEmpty(m.getAlias()))
            return true;
    } else if (feature == XtextPackage.eINSTANCE.getAbstractRule_Type()) {
        final AbstractRule rule = (AbstractRule) owner;
        if (rule instanceof ParserRule || rule instanceof EnumRule) {
            final TypeRef returnType = rule.getType();
            if (returnType == null || returnType.getClassifier() == null)
                return true;
            else if (rule.getName().equals(returnType.getClassifier().getName())) {
                return isTransient(returnType, XtextPackage.eINSTANCE.getTypeRef_Metamodel(), -1);
            } else if (GrammarUtil.isDatatypeRule(rule)) {
                return NodeModelUtils.getNode(returnType) == null;
            }
        } else if (rule instanceof TerminalRule) {
            final TypeRef returnType = rule.getType();
            return ((TerminalRule) rule).isFragment() || returnType == null || GrammarUtil.findEString(GrammarUtil.getGrammar(owner)).equals(rule.getType().getClassifier());
        }
    } else if (feature == XtextPackage.eINSTANCE.getCrossReference_Terminal()) {
        final CrossReference ref = (CrossReference) owner;
        if (ref.getTerminal() instanceof RuleCall && ((RuleCall) ref.getTerminal()).getRule() != null && "ID".equals(((RuleCall) ref.getTerminal()).getRule().getName()))
            return true;
    } else if (feature == XtextPackage.eINSTANCE.getEnumLiteralDeclaration_Literal()) {
        final EnumLiteralDeclaration decl = (EnumLiteralDeclaration) owner;
        return decl.getEnumLiteral() != null && decl.getLiteral() != null && Strings.equal(decl.getLiteral().getValue(), decl.getEnumLiteral().getName());
    } else if (feature == XtextPackage.eINSTANCE.getRuleCall_ExplicitlyCalled()) {
        return true;
    } else if (feature == XtextPackage.eINSTANCE.getNamedArgument_Parameter()) {
        return !((NamedArgument) owner).isCalledByName();
    }
    return super.isTransient(owner, feature, index);
}

Example 24 with AbstractMetamodelDeclaration

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

the class XtextLinkerTest method checkPackageRemovalAfterGrammarChange.

private void checkPackageRemovalAfterGrammarChange(final boolean isRemoved, final String originalGrammar, final int offset, final int length, final String replacement) throws Exception {
    final XtextResource resource = this.getResourceFromStringAndExpect(originalGrammar, 1);
    EObject _get = resource.getContents().get(0);
    Grammar grammar = ((Grammar) _get);
    AbstractMetamodelDeclaration generatedMetamodel = grammar.getMetamodelDeclarations().get(0);
    EPackage ePackage = generatedMetamodel.getEPackage();
    Assert.assertEquals(ePackage.eResource().getResourceSet(), resource.getResourceSet());
    resource.update(offset, length, replacement);
    if (isRemoved) {
        Assert.assertNull(ePackage.eResource().getResourceSet());
    } else {
        Assert.assertEquals(ePackage.eResource().getResourceSet(), resource.getResourceSet());
    }
    EObject _get_1 = resource.getContents().get(0);
    grammar = ((Grammar) _get_1);
    generatedMetamodel = grammar.getMetamodelDeclarations().get(0);
    ePackage = generatedMetamodel.getEPackage();
    Assert.assertEquals(resource.getResourceSet(), ePackage.eResource().getResourceSet());
}

Example 25 with AbstractMetamodelDeclaration

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

the class XtextLinkerTest method checkRegisteredPackageNotUnloadedAfterGrammarChange.

private void checkRegisteredPackageNotUnloadedAfterGrammarChange(final String originalGrammar, final int offset, final int length, final String replacement) throws Exception {
    final XtextResource resource = this.getResourceFromString(originalGrammar);
    EObject _get = resource.getContents().get(0);
    final Grammar grammar = ((Grammar) _get);
    final AbstractMetamodelDeclaration generatedMetamodel = grammar.getMetamodelDeclarations().get(0);
    final EPackage ePackage = generatedMetamodel.getEPackage();
    Assert.assertNull(((InternalEObject) ePackage).eProxyURI());
    resource.update(offset, length, replacement);
    Assert.assertNull(((InternalEObject) ePackage).eProxyURI());
}