Java 类org.eclipse.xtext.xbase.XInstanceOfExpression 实例源码

项目:xtext-extras    文件:XbaseTypeComputer.java   
protected void _computeTypes(XInstanceOfExpression object, ITypeComputationState state) {
    ITypeComputationState expressionState = state.withExpectation(state.getReferenceOwner().newReferenceToObject());
    expressionState.computeTypes(object.getExpression());
    JvmTypeReference type = object.getType();
    if (type != null && type.getType() instanceof JvmTypeParameter) {
        LightweightTypeReference lightweightReference = state.getReferenceOwner().toLightweightTypeReference(type);
        LightweightTypeReference rawTypeRef = lightweightReference.getRawTypeReference();
        state.addDiagnostic(new EObjectDiagnosticImpl(
                Severity.ERROR,
                IssueCodes.INVALID_USE_OF_TYPE_PARAMETER,
                "Cannot perform instanceof check against type parameter "+lightweightReference.getHumanReadableName()+". Use its erasure "+rawTypeRef.getHumanReadableName()+" instead since further generic type information will be erased at runtime.",
                object.getType(),
                null,
                -1,
                new String[] { 
                }));
    }
    LightweightTypeReference bool = getRawTypeForName(Boolean.TYPE, state);
    state.acceptActualType(bool);
}
项目:xtext-extras    文件:SerializerTest.java   
@Test public void testSerialize_01() throws Exception {
    Resource resource = newResource("'foo' as String");
    XCastedExpression casted = (XCastedExpression) resource.getContents().get(0);

    XbaseFactory factory = XbaseFactory.eINSTANCE;
    XClosure closure = factory.createXClosure();
    XStringLiteral stringLiteral = factory.createXStringLiteral();
    stringLiteral.setValue("value");
    XBlockExpression blockExpression = factory.createXBlockExpression();
    blockExpression.getExpressions().add(stringLiteral);
    closure.setExpression(blockExpression);
    closure.setExplicitSyntax(true);
    XInstanceOfExpression instanceOfExpression = factory.createXInstanceOfExpression();
    instanceOfExpression.setExpression(closure);
    instanceOfExpression.setType(EcoreUtil.copy(casted.getType()));
    resource.getContents().clear();
    resource.getContents().add(instanceOfExpression);
    ISerializer serializer = get(ISerializer.class);
    String string = serializer.serialize(instanceOfExpression);
    assertEquals("[|\"value\"] instanceof String", string);

    XInstanceOfExpression parsedExpression = parseHelper.parse(string);
    assertTrue(EcoreUtil.equals(instanceOfExpression, parsedExpression));
}
项目:xtext-extras    文件:SerializerTest.java   
@Test public void testSerialize_02() throws Exception {
    Resource resource = newResource("'foo' as String");
    XCastedExpression casted = (XCastedExpression) resource.getContents().get(0);

    XbaseFactory factory = XbaseFactory.eINSTANCE;
    XIfExpression ifExpression = factory.createXIfExpression();
    ifExpression.setIf(factory.createXBooleanLiteral());
    XStringLiteral stringLiteral = factory.createXStringLiteral();
    stringLiteral.setValue("value");
    ifExpression.setThen(stringLiteral);
    XInstanceOfExpression instanceOfExpression = factory.createXInstanceOfExpression();
    instanceOfExpression.setExpression(ifExpression);
    instanceOfExpression.setType(EcoreUtil.copy(casted.getType()));
    resource.getContents().clear();
    resource.getContents().add(instanceOfExpression);
    ISerializer serializer = get(ISerializer.class);
    String string = serializer.serialize(instanceOfExpression);
    // see https://bugs.eclipse.org/bugs/show_bug.cgi?id=464846
    assertEquals("( if(false) \"value\" ) instanceof String", string);

    XInstanceOfExpression parsedExpression = parseHelper.parse(string);
    assertTrue(EcoreUtil.equals(instanceOfExpression, parsedExpression));
}
项目:xtext-extras    文件:XbaseValidator.java   
@Check
public void checkInstanceOf(XInstanceOfExpression instanceOfExpression) {
    LightweightTypeReference leftType = getActualType(instanceOfExpression.getExpression());
    final LightweightTypeReference rightType = toLightweightTypeReference(instanceOfExpression.getType(), true);
    if (leftType == null || rightType == null || rightType.getType() == null || rightType.getType().eIsProxy()) {
        return;
    }
    if (containsTypeArgs(rightType)) {
        error("Cannot perform instanceof check against parameterized type " + getNameOfTypes(rightType), null, ValidationMessageAcceptor.INSIGNIFICANT_INDEX, INVALID_INSTANCEOF);
        return;
    }
    if (leftType.isAny() || leftType.isUnknown()) {
        return; // null / unknown is ok
    }
    if (rightType.isPrimitive()) {
        error("Cannot perform instanceof check against primitive type " + this.getNameOfTypes(rightType), null, ValidationMessageAcceptor.INSIGNIFICANT_INDEX, INVALID_INSTANCEOF);
        return;
    }
    if (leftType.isPrimitive() 
        || rightType.isArray() && !(leftType.isArray() || leftType.isType(Object.class) || leftType.isType(Cloneable.class) || leftType.isType(Serializable.class))
        || isFinal(rightType) && !memberOfTypeHierarchy(rightType, leftType)
        || isFinal(leftType) && !memberOfTypeHierarchy(leftType, rightType)) {
        error("Incompatible conditional operand types " + this.getNameOfTypes(leftType)+" and "+this.getNameOfTypes(rightType), null, ValidationMessageAcceptor.INSIGNIFICANT_INDEX, INVALID_INSTANCEOF);
        return;
    }
    if (!isIgnored(OBSOLETE_INSTANCEOF) && rightType.isAssignableFrom(leftType, new TypeConformanceComputationArgument(false, false, true, true, false, false))) {
        addIssueToState(OBSOLETE_INSTANCEOF, "The expression of type " + getNameOfTypes(leftType)
                + " is already of type " + canonicalName(rightType), null);
    }
}
项目:xtext-extras    文件:XbaseTypeComputer.java   
/**
 * If the condition is a {@link XInstanceOfExpression type check}, the checked expression
 * will be automatically casted in the returned state.
 */
protected ITypeComputationState reassignCheckedType(XExpression condition, /* @Nullable */ XExpression guardedExpression, ITypeComputationState state) {
    if (condition instanceof XInstanceOfExpression) {
        XInstanceOfExpression instanceOfExpression = (XInstanceOfExpression) condition;
        JvmTypeReference castedType = instanceOfExpression.getType();
        if (castedType != null) {
            state = state.withTypeCheckpoint(guardedExpression);
            JvmIdentifiableElement refinable = getRefinableCandidate(instanceOfExpression.getExpression(), state);
            if (refinable != null) {
                state.reassignType(refinable, state.getReferenceOwner().toLightweightTypeReference(castedType));
            }
        }
    }
    return state;
}
项目:xtext-extras    文件:XbaseCompiler.java   
@Override
protected void internalToConvertedExpression(XExpression obj, ITreeAppendable appendable) {
    if (obj instanceof XBlockExpression) {
        _toJavaExpression((XBlockExpression) obj, appendable);
    } else if (obj instanceof XCastedExpression) {
        _toJavaExpression((XCastedExpression) obj, appendable);
    } else if (obj instanceof XClosure) {
        _toJavaExpression((XClosure) obj, appendable);
    } else if (obj instanceof XAnnotation) {
        _toJavaExpression((XAnnotation) obj, appendable);
    } else if (obj instanceof XConstructorCall) {
        _toJavaExpression((XConstructorCall) obj, appendable);
    } else if (obj instanceof XIfExpression) {
        _toJavaExpression((XIfExpression) obj, appendable);
    } else if (obj instanceof XInstanceOfExpression) {
        _toJavaExpression((XInstanceOfExpression) obj, appendable);
    } else if (obj instanceof XSwitchExpression) {
        _toJavaExpression((XSwitchExpression) obj, appendable);
    } else if (obj instanceof XTryCatchFinallyExpression) {
        _toJavaExpression((XTryCatchFinallyExpression) obj, appendable);
    } else if (obj instanceof XListLiteral) {
        _toJavaExpression((XListLiteral) obj, appendable);
    } else if (obj instanceof XSetLiteral) {
        _toJavaExpression((XSetLiteral) obj, appendable);
    } else if (obj instanceof XSynchronizedExpression) {
        _toJavaExpression((XSynchronizedExpression) obj, appendable);
    } else if (obj instanceof XReturnExpression) {
        _toJavaExpression((XReturnExpression) obj, appendable);
    } else if (obj instanceof XThrowExpression) {
        _toJavaExpression((XThrowExpression) obj, appendable);
    } else {
        super.internalToConvertedExpression(obj, appendable);
    }
}
项目:xtext-extras    文件:XbaseCompiler.java   
protected void _toJavaExpression(XInstanceOfExpression expr, ITreeAppendable b) {
    b.append("(");
    internalToJavaExpression(expr.getExpression(), b);
    b.append(" instanceof ");
    serialize(expr.getType(), expr, b);
    b.append(")");
}
项目:xtext-extras    文件:XbaseInterpreter.java   
protected Object _doEvaluate(XInstanceOfExpression instanceOf, IEvaluationContext context, CancelIndicator indicator) {
    Object instance = internalEvaluate(instanceOf.getExpression(), context, indicator);
    if (instance == null)
        return Boolean.FALSE;

    Class<?> expectedType = null;
    String className = instanceOf.getType().getType().getQualifiedName();
    try {
        expectedType = classFinder.forName(className);
    } catch (ClassNotFoundException cnfe) {
        throw new EvaluationException(new NoClassDefFoundError(className));
    }
    return expectedType.isInstance(instance);
}
项目:xtext-extras    文件:XbaseFormatter.java   
protected void _format(final XInstanceOfExpression expr, @Extension final IFormattableDocument doc) {
  final Procedure1<IHiddenRegionFormatter> _function = (IHiddenRegionFormatter it) -> {
    it.oneSpace();
  };
  doc.surround(this.textRegionExtensions.regionFor(expr).keyword("instanceof"), _function);
  doc.<XExpression>format(expr.getExpression());
  doc.<JvmTypeReference>format(expr.getType());
}
项目:dsl-devkit    文件:AbstractCheckSemanticSequencer.java   
/**
 * Constraint:
 *     (expression=XRelationalExpression_XInstanceOfExpression_1_0_0_0_0 type=JvmTypeReference)
 */
protected void sequence_XRelationalExpression(EObject context, XInstanceOfExpression semanticObject) {
    if(errorAcceptor != null) {
        if(transientValues.isValueTransient(semanticObject, XbasePackage.Literals.XINSTANCE_OF_EXPRESSION__TYPE) == ValueTransient.YES)
            errorAcceptor.accept(diagnosticProvider.createFeatureValueMissing(semanticObject, XbasePackage.Literals.XINSTANCE_OF_EXPRESSION__TYPE));
        if(transientValues.isValueTransient(semanticObject, XbasePackage.Literals.XINSTANCE_OF_EXPRESSION__EXPRESSION) == ValueTransient.YES)
            errorAcceptor.accept(diagnosticProvider.createFeatureValueMissing(semanticObject, XbasePackage.Literals.XINSTANCE_OF_EXPRESSION__EXPRESSION));
    }
    INodesForEObjectProvider nodes = createNodeProvider(semanticObject);
    SequenceFeeder feeder = createSequencerFeeder(semanticObject, nodes);
    feeder.accept(grammarAccess.getXRelationalExpressionAccess().getXInstanceOfExpressionExpressionAction_1_0_0_0_0(), semanticObject.getExpression());
    feeder.accept(grammarAccess.getXRelationalExpressionAccess().getTypeJvmTypeReferenceParserRuleCall_1_0_1_0(), semanticObject.getType());
    feeder.finish();
}
项目:dsl-devkit    文件:AbstractCheckCfgSemanticSequencer.java   
/**
 * Constraint:
 *     (expression=XRelationalExpression_XInstanceOfExpression_1_0_0_0_0 type=JvmTypeReference)
 */
protected void sequence_XRelationalExpression(EObject context, XInstanceOfExpression semanticObject) {
    if(errorAcceptor != null) {
        if(transientValues.isValueTransient(semanticObject, XbasePackage.Literals.XINSTANCE_OF_EXPRESSION__TYPE) == ValueTransient.YES)
            errorAcceptor.accept(diagnosticProvider.createFeatureValueMissing(semanticObject, XbasePackage.Literals.XINSTANCE_OF_EXPRESSION__TYPE));
        if(transientValues.isValueTransient(semanticObject, XbasePackage.Literals.XINSTANCE_OF_EXPRESSION__EXPRESSION) == ValueTransient.YES)
            errorAcceptor.accept(diagnosticProvider.createFeatureValueMissing(semanticObject, XbasePackage.Literals.XINSTANCE_OF_EXPRESSION__EXPRESSION));
    }
    INodesForEObjectProvider nodes = createNodeProvider(semanticObject);
    SequenceFeeder feeder = createSequencerFeeder(semanticObject, nodes);
    feeder.accept(grammarAccess.getXRelationalExpressionAccess().getXInstanceOfExpressionExpressionAction_1_0_0_0_0(), semanticObject.getExpression());
    feeder.accept(grammarAccess.getXRelationalExpressionAccess().getTypeJvmTypeReferenceParserRuleCall_1_0_1_0(), semanticObject.getType());
    feeder.finish();
}
项目:xtext-extras    文件:AbstractXbaseSemanticSequencer.java   
@Deprecated
protected void sequence_XRelationalExpression(EObject context, XInstanceOfExpression semanticObject) {
    sequence_XRelationalExpression(createContext(context, semanticObject), semanticObject);
}
项目:xtext-extras    文件:XbaseValidator.java   
@Check
public void checkInstanceOfOrder(XIfExpression expression) {
    if (isIgnored(IssueCodes.UNREACHABLE_IF_BLOCK)) {
        return;
    }
    if (expression.eContainer() instanceof XIfExpression) {
        XIfExpression container = (XIfExpression) expression.eContainer();
        if (container.getElse() == expression) {
            return;
        }
    }
    List<XExpression> ifParts = collectIfParts(expression, new ArrayList<XExpression>());
    ITypeReferenceOwner owner = new StandardTypeReferenceOwner(getServices(), expression);
    Multimap<JvmIdentifiableElement, LightweightTypeReference> previousTypeReferences = HashMultimap.create();
    for (XExpression ifPart : ifParts) {
        if (!(ifPart instanceof XInstanceOfExpression)) {
            continue;
        }
        XInstanceOfExpression instanceOfExpression = (XInstanceOfExpression) ifPart;
        if (!(instanceOfExpression.getExpression() instanceof XAbstractFeatureCall)) {
            continue;
        }
        XAbstractFeatureCall featureCall = (XAbstractFeatureCall) instanceOfExpression.getExpression();
        JvmIdentifiableElement feature = featureCall.getFeature();
        if (!(feature instanceof XVariableDeclaration)
                && !(feature instanceof JvmField)
                && !(feature instanceof JvmFormalParameter)) {
            continue;
        }
        JvmTypeReference type = instanceOfExpression.getType();
        LightweightTypeReference actualType = owner.toLightweightTypeReference(type);
        if (actualType == null) {
            continue;
        }
        if (isHandled(actualType, previousTypeReferences.get(feature))) {
            addIssue("Unreachable code: The if condition can never match. It is already handled by a previous condition.", type, IssueCodes.UNREACHABLE_IF_BLOCK);
            continue;
        }
        previousTypeReferences.put(feature, actualType);
    }
}
项目:xtext-extras    文件:XbaseTypeComputer.java   
@Override
public void computeTypes(XExpression expression, ITypeComputationState state) {
    if (expression instanceof XAssignment) {
        _computeTypes((XAssignment)expression, state);
    } else if (expression instanceof XAbstractFeatureCall) {
        _computeTypes((XAbstractFeatureCall)expression, state);
    } else if (expression instanceof XDoWhileExpression) {
        _computeTypes((XDoWhileExpression)expression, state);
    } else if (expression instanceof XWhileExpression) {
        _computeTypes((XWhileExpression)expression, state);
    } else if (expression instanceof XBlockExpression) {
        _computeTypes((XBlockExpression)expression, state);
    } else if (expression instanceof XBooleanLiteral) {
        _computeTypes((XBooleanLiteral)expression, state);
    } else if (expression instanceof XCastedExpression) {
        _computeTypes((XCastedExpression)expression, state);
    } else if (expression instanceof XClosure) {
        _computeTypes((XClosure)expression, state);
    } else if (expression instanceof XConstructorCall) {
        _computeTypes((XConstructorCall)expression, state);
    } else if (expression instanceof XForLoopExpression) {
        _computeTypes((XForLoopExpression)expression, state);
    } else if (expression instanceof XBasicForLoopExpression) {
        _computeTypes((XBasicForLoopExpression)expression, state);
    } else if (expression instanceof XIfExpression) {
        _computeTypes((XIfExpression)expression, state);
    } else if (expression instanceof XInstanceOfExpression) {
        _computeTypes((XInstanceOfExpression)expression, state);
    } else if (expression instanceof XNumberLiteral) {
        _computeTypes((XNumberLiteral)expression, state);
    } else if (expression instanceof XNullLiteral) {
        _computeTypes((XNullLiteral)expression, state);
    } else if (expression instanceof XReturnExpression) {
        _computeTypes((XReturnExpression)expression, state);
    } else if (expression instanceof XStringLiteral) {
        _computeTypes((XStringLiteral)expression, state);
    } else if (expression instanceof XSwitchExpression) {
        _computeTypes((XSwitchExpression)expression, state);
    } else if (expression instanceof XThrowExpression) {
        _computeTypes((XThrowExpression)expression, state);
    } else if (expression instanceof XTryCatchFinallyExpression) {
        _computeTypes((XTryCatchFinallyExpression)expression, state);
    } else if (expression instanceof XTypeLiteral) {
        _computeTypes((XTypeLiteral)expression, state);
    } else if (expression instanceof XVariableDeclaration) {
        _computeTypes((XVariableDeclaration)expression, state);
    } else if (expression instanceof XListLiteral) {
        _computeTypes((XListLiteral)expression, state);
    } else if (expression instanceof XSetLiteral) {
        _computeTypes((XSetLiteral)expression, state);
    } else if (expression instanceof XSynchronizedExpression) {
        _computeTypes((XSynchronizedExpression)expression, state);
    } else {
        throw new UnsupportedOperationException("Missing type computation for expression type: " + expression.eClass().getName() + " / " + state);
    }
}
项目:xtext-extras    文件:XbaseCompiler.java   
@Override
protected void doInternalToJavaStatement(XExpression obj, ITreeAppendable appendable, boolean isReferenced) {
    if (obj instanceof XBlockExpression) {
        _toJavaStatement((XBlockExpression) obj, appendable, isReferenced);
    } else if (obj instanceof XCastedExpression) {
        _toJavaStatement((XCastedExpression) obj, appendable, isReferenced);
    } else if (obj instanceof XClosure) {
        _toJavaStatement((XClosure) obj, appendable, isReferenced);
    } else if (obj instanceof XConstructorCall) {
        _toJavaStatement((XConstructorCall) obj, appendable, isReferenced);
    } else if (obj instanceof XDoWhileExpression) {
        _toJavaStatement((XDoWhileExpression) obj, appendable, isReferenced);
    } else if (obj instanceof XForLoopExpression) {
        _toJavaStatement((XForLoopExpression) obj, appendable, isReferenced);
    } else if (obj instanceof XBasicForLoopExpression) {
        _toJavaStatement((XBasicForLoopExpression) obj, appendable, isReferenced);
    } else if (obj instanceof XIfExpression) {
        _toJavaStatement((XIfExpression) obj, appendable, isReferenced);
    } else if (obj instanceof XInstanceOfExpression) {
        _toJavaStatement((XInstanceOfExpression) obj, appendable, isReferenced);
    } else if (obj instanceof XReturnExpression) {
        _toJavaStatement((XReturnExpression) obj, appendable, isReferenced);
    } else if (obj instanceof XSwitchExpression) {
        _toJavaStatement((XSwitchExpression) obj, appendable, isReferenced);
    } else if (obj instanceof XThrowExpression) {
        _toJavaStatement((XThrowExpression) obj, appendable, isReferenced);
    } else if (obj instanceof XTryCatchFinallyExpression) {
        _toJavaStatement((XTryCatchFinallyExpression) obj, appendable, isReferenced);
    } else if (obj instanceof XVariableDeclaration) {
        _toJavaStatement((XVariableDeclaration) obj, appendable, isReferenced);
    } else if (obj instanceof XWhileExpression) {
        _toJavaStatement((XWhileExpression) obj, appendable, isReferenced);
    } else if (obj instanceof XListLiteral) {
        _toJavaStatement((XListLiteral) obj, appendable, isReferenced);
    } else if (obj instanceof XSetLiteral) {
        _toJavaStatement((XSetLiteral) obj, appendable, isReferenced);
    } else if (obj instanceof XSynchronizedExpression) {
        _toJavaStatement((XSynchronizedExpression) obj, appendable, isReferenced);
    } else {
        super.doInternalToJavaStatement(obj, appendable, isReferenced);
    }
}
项目:xtext-extras    文件:XbaseCompiler.java   
/**
 * @param isReferenced unused in this context but necessary for dispatch signature 
 */
protected void _toJavaStatement(XInstanceOfExpression expr, ITreeAppendable b, boolean isReferenced) {
    internalToJavaStatement(expr.getExpression(), b, true);
}
项目:xtext-extras    文件:XbaseCompiler.java   
@Override
protected boolean isVariableDeclarationRequired(XExpression expr, ITreeAppendable b, boolean recursive) {
    if (expr instanceof XAnnotation) {
        return false;
    }
    if (expr instanceof XListLiteral) {
        return false;
    }
    if (expr instanceof XSetLiteral) {
        return false;
    }
    if (expr instanceof XCastedExpression) {
        return false;
    }
    if (expr instanceof XInstanceOfExpression) {
        return false;
    }
    if (expr instanceof XMemberFeatureCall && isVariableDeclarationRequired((XMemberFeatureCall) expr, b))
        return true;
    EObject container = expr.eContainer();
    if ((container instanceof XVariableDeclaration)
        || (container instanceof XReturnExpression) 
        || (container instanceof XThrowExpression)) {
        return false;
    }
    if (container instanceof XIfExpression) {
        XIfExpression ifExpression = (XIfExpression) container;
        if (ifExpression.getThen() == expr || ifExpression.getElse() == expr) {
            return false;
        }
    }
    if (container instanceof XCasePart) {
        XCasePart casePart = (XCasePart) container;
        if (casePart.getThen() == expr) {
            return false;
        }
    }
    if (container instanceof XSwitchExpression) {
        XSwitchExpression switchExpression = (XSwitchExpression) container;
        if (switchExpression.getDefault() == expr) {
            return false;
        }
    }
    if (container instanceof XBlockExpression) {
        List<XExpression> siblings = ((XBlockExpression) container).getExpressions();
        if (siblings.get(siblings.size() - 1) == expr) {
            return isVariableDeclarationRequired(getFeatureCall(expr), expr, b);
        }
    }
    if (container instanceof XClosure) {
        if (((XClosure) container).getExpression() == expr) {
            return false;
        }
    }
    if (expr instanceof XAssignment) {
        XAssignment a = (XAssignment) expr;
        for (XExpression arg : getActualArguments(a)) {
            if (isVariableDeclarationRequired(arg, b, recursive)) {
                return true;
            }
        }
    }
    return super.isVariableDeclarationRequired(expr, b, recursive);
}
项目:xtext-extras    文件:XbaseInterpreter.java   
/**
 * don't call this directly. Always call evaluate() internalEvaluate()
 */
protected Object doEvaluate(XExpression expression, IEvaluationContext context, CancelIndicator indicator) {
    if (expression instanceof XAssignment) {
      return _doEvaluate((XAssignment)expression, context, indicator);
    } else if (expression instanceof XDoWhileExpression) {
      return _doEvaluate((XDoWhileExpression)expression, context, indicator);
    } else if (expression instanceof XMemberFeatureCall) {
      return _doEvaluate((XMemberFeatureCall)expression, context, indicator);
    } else if (expression instanceof XWhileExpression) {
      return _doEvaluate((XWhileExpression)expression, context, indicator);
    } else if (expression instanceof XFeatureCall) {
        return _doEvaluate((XFeatureCall)expression, context, indicator);
    } else if (expression instanceof XAbstractFeatureCall) {
        return _doEvaluate((XAbstractFeatureCall)expression, context, indicator);
    } else if (expression instanceof XBlockExpression) {
      return _doEvaluate((XBlockExpression)expression, context, indicator);
    } else if (expression instanceof XSynchronizedExpression) {
      return _doEvaluate((XSynchronizedExpression)expression, context, indicator);
    } else if (expression instanceof XBooleanLiteral) {
      return _doEvaluate((XBooleanLiteral)expression, context, indicator);
    } else if (expression instanceof XCastedExpression) {
      return _doEvaluate((XCastedExpression)expression, context, indicator);
    } else if (expression instanceof XClosure) {
      return _doEvaluate((XClosure)expression, context, indicator);
    } else if (expression instanceof XConstructorCall) {
      return _doEvaluate((XConstructorCall)expression, context, indicator);
    } else if (expression instanceof XForLoopExpression) {
      return _doEvaluate((XForLoopExpression)expression, context, indicator);
    } else if (expression instanceof XBasicForLoopExpression) {
      return _doEvaluate((XBasicForLoopExpression)expression, context, indicator);
    } else if (expression instanceof XIfExpression) {
      return _doEvaluate((XIfExpression)expression, context, indicator);
    } else if (expression instanceof XInstanceOfExpression) {
      return _doEvaluate((XInstanceOfExpression)expression, context, indicator);
    } else if (expression instanceof XNullLiteral) {
      return _doEvaluate((XNullLiteral)expression, context, indicator);
    } else if (expression instanceof XNumberLiteral) {
      return _doEvaluate((XNumberLiteral)expression, context, indicator);
    } else if (expression instanceof XReturnExpression) {
      return _doEvaluate((XReturnExpression)expression, context, indicator);
    } else if (expression instanceof XStringLiteral) {
      return _doEvaluate((XStringLiteral)expression, context, indicator);
    } else if (expression instanceof XSwitchExpression) {
      return _doEvaluate((XSwitchExpression)expression, context, indicator);
    } else if (expression instanceof XThrowExpression) {
      return _doEvaluate((XThrowExpression)expression, context, indicator);
    } else if (expression instanceof XTryCatchFinallyExpression) {
      return _doEvaluate((XTryCatchFinallyExpression)expression, context, indicator);
    } else if (expression instanceof XTypeLiteral) {
      return _doEvaluate((XTypeLiteral)expression, context, indicator);
    } else if (expression instanceof XVariableDeclaration) {
          return _doEvaluate((XVariableDeclaration)expression, context, indicator);
    } else if (expression instanceof XListLiteral) {
          return _doEvaluate((XListLiteral)expression, context, indicator);
    } else if (expression instanceof XSetLiteral) {
          return _doEvaluate((XSetLiteral)expression, context, indicator);
    } else {
      throw new IllegalArgumentException("Unhandled parameter types: " +
        Arrays.<Object>asList(expression, context, indicator).toString());
    }
}
项目:xtext-extras    文件:XbaseImplicitReturnFinder.java   
protected void _findImplicitReturns(final XInstanceOfExpression expression, final ImplicitReturnFinder.Acceptor acceptor) {
  acceptor.accept(expression);
}
项目:xtext-extras    文件:XbaseImplicitReturnFinder.java   
public void findImplicitReturns(final XExpression expression, final ImplicitReturnFinder.Acceptor acceptor) {
  if (expression instanceof XAbstractFeatureCall) {
    _findImplicitReturns((XAbstractFeatureCall)expression, acceptor);
    return;
  } else if (expression instanceof XBlockExpression) {
    _findImplicitReturns((XBlockExpression)expression, acceptor);
    return;
  } else if (expression instanceof XBooleanLiteral) {
    _findImplicitReturns((XBooleanLiteral)expression, acceptor);
    return;
  } else if (expression instanceof XCastedExpression) {
    _findImplicitReturns((XCastedExpression)expression, acceptor);
    return;
  } else if (expression instanceof XClosure) {
    _findImplicitReturns((XClosure)expression, acceptor);
    return;
  } else if (expression instanceof XCollectionLiteral) {
    _findImplicitReturns((XCollectionLiteral)expression, acceptor);
    return;
  } else if (expression instanceof XConstructorCall) {
    _findImplicitReturns((XConstructorCall)expression, acceptor);
    return;
  } else if (expression instanceof XIfExpression) {
    _findImplicitReturns((XIfExpression)expression, acceptor);
    return;
  } else if (expression instanceof XInstanceOfExpression) {
    _findImplicitReturns((XInstanceOfExpression)expression, acceptor);
    return;
  } else if (expression instanceof XNullLiteral) {
    _findImplicitReturns((XNullLiteral)expression, acceptor);
    return;
  } else if (expression instanceof XNumberLiteral) {
    _findImplicitReturns((XNumberLiteral)expression, acceptor);
    return;
  } else if (expression instanceof XStringLiteral) {
    _findImplicitReturns((XStringLiteral)expression, acceptor);
    return;
  } else if (expression instanceof XSwitchExpression) {
    _findImplicitReturns((XSwitchExpression)expression, acceptor);
    return;
  } else if (expression instanceof XSynchronizedExpression) {
    _findImplicitReturns((XSynchronizedExpression)expression, acceptor);
    return;
  } else if (expression instanceof XTryCatchFinallyExpression) {
    _findImplicitReturns((XTryCatchFinallyExpression)expression, acceptor);
    return;
  } else if (expression instanceof XTypeLiteral) {
    _findImplicitReturns((XTypeLiteral)expression, acceptor);
    return;
  } else if (expression != null) {
    _findImplicitReturns(expression, acceptor);
    return;
  } else if (expression == null) {
    _findImplicitReturns((Void)null, acceptor);
    return;
  } else {
    throw new IllegalArgumentException("Unhandled parameter types: " +
      Arrays.<Object>asList(expression, acceptor).toString());
  }
}
项目:xtext-extras    文件:XbaseParserTest.java   
@Test public void testInstanceOf() throws Exception {
    XInstanceOfExpression expression = (XInstanceOfExpression) expression("true instanceof Boolean");
    doTestInstanceOf(expression);
}
项目:xtext-extras    文件:XbaseParserTest.java   
protected void doTestInstanceOf(XInstanceOfExpression expression) {
    assertEquals("java.lang.Boolean",expression.getType().getIdentifier());
    assertTrue(expression.getExpression() instanceof XBooleanLiteral);
}
项目:xtext-extras    文件:AbstractXbaseSemanticSequencer.java   
/**
 * Contexts:
 *     XExpression returns XInstanceOfExpression
 *     XAssignment returns XInstanceOfExpression
 *     XAssignment.XBinaryOperation_1_1_0_0_0 returns XInstanceOfExpression
 *     XOrExpression returns XInstanceOfExpression
 *     XOrExpression.XBinaryOperation_1_0_0_0 returns XInstanceOfExpression
 *     XAndExpression returns XInstanceOfExpression
 *     XAndExpression.XBinaryOperation_1_0_0_0 returns XInstanceOfExpression
 *     XEqualityExpression returns XInstanceOfExpression
 *     XEqualityExpression.XBinaryOperation_1_0_0_0 returns XInstanceOfExpression
 *     XRelationalExpression returns XInstanceOfExpression
 *     XRelationalExpression.XInstanceOfExpression_1_0_0_0_0 returns XInstanceOfExpression
 *     XRelationalExpression.XBinaryOperation_1_1_0_0_0 returns XInstanceOfExpression
 *     XOtherOperatorExpression returns XInstanceOfExpression
 *     XOtherOperatorExpression.XBinaryOperation_1_0_0_0 returns XInstanceOfExpression
 *     XAdditiveExpression returns XInstanceOfExpression
 *     XAdditiveExpression.XBinaryOperation_1_0_0_0 returns XInstanceOfExpression
 *     XMultiplicativeExpression returns XInstanceOfExpression
 *     XMultiplicativeExpression.XBinaryOperation_1_0_0_0 returns XInstanceOfExpression
 *     XUnaryOperation returns XInstanceOfExpression
 *     XCastedExpression returns XInstanceOfExpression
 *     XCastedExpression.XCastedExpression_1_0_0_0 returns XInstanceOfExpression
 *     XPostfixOperation returns XInstanceOfExpression
 *     XPostfixOperation.XPostfixOperation_1_0_0 returns XInstanceOfExpression
 *     XMemberFeatureCall returns XInstanceOfExpression
 *     XMemberFeatureCall.XAssignment_1_0_0_0_0 returns XInstanceOfExpression
 *     XMemberFeatureCall.XMemberFeatureCall_1_1_0_0_0 returns XInstanceOfExpression
 *     XPrimaryExpression returns XInstanceOfExpression
 *     XParenthesizedExpression returns XInstanceOfExpression
 *     XExpressionOrVarDeclaration returns XInstanceOfExpression
 *
 * Constraint:
 *     (expression=XRelationalExpression_XInstanceOfExpression_1_0_0_0_0 type=JvmTypeReference)
 */
protected void sequence_XRelationalExpression(ISerializationContext context, XInstanceOfExpression semanticObject) {
    if (errorAcceptor != null) {
        if (transientValues.isValueTransient(semanticObject, XbasePackage.Literals.XINSTANCE_OF_EXPRESSION__EXPRESSION) == ValueTransient.YES)
            errorAcceptor.accept(diagnosticProvider.createFeatureValueMissing(semanticObject, XbasePackage.Literals.XINSTANCE_OF_EXPRESSION__EXPRESSION));
        if (transientValues.isValueTransient(semanticObject, XbasePackage.Literals.XINSTANCE_OF_EXPRESSION__TYPE) == ValueTransient.YES)
            errorAcceptor.accept(diagnosticProvider.createFeatureValueMissing(semanticObject, XbasePackage.Literals.XINSTANCE_OF_EXPRESSION__TYPE));
    }
    SequenceFeeder feeder = createSequencerFeeder(context, semanticObject);
    feeder.accept(grammarAccess.getXRelationalExpressionAccess().getXInstanceOfExpressionExpressionAction_1_0_0_0_0(), semanticObject.getExpression());
    feeder.accept(grammarAccess.getXRelationalExpressionAccess().getTypeJvmTypeReferenceParserRuleCall_1_0_1_0(), semanticObject.getType());
    feeder.finish();
}