Examples with ImportRewriteContext org.eclipse.jdt.core.dom.rewrite.ImportRewrite.ImportRewriteContext used on opensource projects

Example 26 with ImportRewriteContext

use of org.eclipse.jdt.core.dom.rewrite.ImportRewrite.ImportRewriteContext in project che by eclipse.

the class JavaContext method addImport.

/**
	 * Adds an import for type with type name <code>type</code> if possible.
	 * Returns a string which can be used to reference the type.
	 *
	 * @param type the fully qualified name of the type to import
	 * @return returns a type to which the type binding can be assigned to.
	 * 	The returned type contains is unqualified when an import could be added or was already known.
	 * 	It is fully qualified, if an import conflict prevented the import.
	 * @since 3.4
	 */
public String addImport(String type) {
    if (isReadOnly())
        return type;
    ICompilationUnit cu = getCompilationUnit();
    if (cu == null)
        return type;
    try {
        boolean qualified = type.indexOf('.') != -1;
        if (!qualified) {
            IJavaSearchScope searchScope = SearchEngine.createJavaSearchScope(new IJavaElement[] { cu.getJavaProject() });
            SimpleName nameNode = null;
            TypeNameMatch[] matches = findAllTypes(type, searchScope, nameNode, null, cu);
            if (// only add import if we have a single match
            matches.length != 1)
                return type;
            type = matches[0].getFullyQualifiedName();
        }
        CompilationUnit root = getASTRoot(cu);
        if (fImportRewrite == null) {
            if (root == null) {
                fImportRewrite = StubUtility.createImportRewrite(cu, true);
            } else {
                fImportRewrite = StubUtility.createImportRewrite(root, true);
            }
        }
        ImportRewriteContext context;
        if (root == null)
            context = null;
        else
            context = new ContextSensitiveImportRewriteContext(root, getCompletionOffset(), fImportRewrite);
        return fImportRewrite.addImport(type, context);
    } catch (JavaModelException e) {
        handleException(null, e);
        return type;
    }
}

Example 27 with ImportRewriteContext

use of org.eclipse.jdt.core.dom.rewrite.ImportRewrite.ImportRewriteContext in project che by eclipse.

the class IntroduceFactoryRefactoring method createFactoryMethod.

/**
	 * Creates and returns a new MethodDeclaration that represents the factory method to be used in
	 * place of direct calls to the constructor in question.
	 * 
	 * @param ast An AST used as a factory for various AST nodes
	 * @param ctorBinding binding for the constructor being wrapped
	 * @param unitRewriter the ASTRewrite to be used
	 * @return the new method declaration
	 * @throws CoreException if an exception occurs while accessing its corresponding resource
	 */
private MethodDeclaration createFactoryMethod(AST ast, IMethodBinding ctorBinding, ASTRewrite unitRewriter) throws CoreException {
    MethodDeclaration newMethod = ast.newMethodDeclaration();
    SimpleName newMethodName = ast.newSimpleName(fNewMethodName);
    ClassInstanceCreation newCtorCall = ast.newClassInstanceCreation();
    ReturnStatement ret = ast.newReturnStatement();
    Block body = ast.newBlock();
    List<Statement> stmts = body.statements();
    String retTypeName = ctorBinding.getName();
    createFactoryMethodSignature(ast, newMethod);
    newMethod.setName(newMethodName);
    newMethod.setBody(body);
    ITypeBinding declaringClass = fCtorBinding.getDeclaringClass();
    ITypeBinding[] ctorOwnerTypeParameters = declaringClass.getTypeParameters();
    setMethodReturnType(newMethod, retTypeName, ctorOwnerTypeParameters, ast);
    newMethod.modifiers().addAll(ASTNodeFactory.newModifiers(ast, Modifier.STATIC | Modifier.PUBLIC));
    setCtorTypeArguments(newCtorCall, retTypeName, ctorOwnerTypeParameters, ast);
    createFactoryMethodConstructorArgs(ast, newCtorCall);
    if (Modifier.isAbstract(declaringClass.getModifiers())) {
        AnonymousClassDeclaration decl = ast.newAnonymousClassDeclaration();
        IMethodBinding[] unimplementedMethods = getUnimplementedMethods(declaringClass);
        CodeGenerationSettings settings = JavaPreferencesSettings.getCodeGenerationSettings(fCUHandle.getJavaProject());
        ImportRewriteContext context = new ContextSensitiveImportRewriteContext(fFactoryCU, decl.getStartPosition(), fImportRewriter);
        for (int i = 0; i < unimplementedMethods.length; i++) {
            IMethodBinding unImplementedMethod = unimplementedMethods[i];
            MethodDeclaration newMethodDecl = StubUtility2.createImplementationStub(fCUHandle, unitRewriter, fImportRewriter, context, unImplementedMethod, unImplementedMethod.getDeclaringClass().getName(), settings, false);
            decl.bodyDeclarations().add(newMethodDecl);
        }
        newCtorCall.setAnonymousClassDeclaration(decl);
    }
    ret.setExpression(newCtorCall);
    stmts.add(ret);
    return newMethod;
}

Example 28 with ImportRewriteContext

use of org.eclipse.jdt.core.dom.rewrite.ImportRewrite.ImportRewriteContext in project che by eclipse.

the class TypeMismatchSubProcessor method addTypeMismatchProposals.

public static void addTypeMismatchProposals(IInvocationContext context, IProblemLocation problem, Collection<ICommandAccess> proposals) throws CoreException {
    String[] args = problem.getProblemArguments();
    if (args.length != 2) {
        return;
    }
    ICompilationUnit cu = context.getCompilationUnit();
    CompilationUnit astRoot = context.getASTRoot();
    AST ast = astRoot.getAST();
    ASTNode selectedNode = problem.getCoveredNode(astRoot);
    if (!(selectedNode instanceof Expression)) {
        return;
    }
    Expression nodeToCast = (Expression) selectedNode;
    Name receiverNode = null;
    ITypeBinding castTypeBinding = null;
    int parentNodeType = selectedNode.getParent().getNodeType();
    if (parentNodeType == ASTNode.ASSIGNMENT) {
        Assignment assign = (Assignment) selectedNode.getParent();
        Expression leftHandSide = assign.getLeftHandSide();
        if (selectedNode.equals(leftHandSide)) {
            nodeToCast = assign.getRightHandSide();
        }
        castTypeBinding = assign.getLeftHandSide().resolveTypeBinding();
        if (leftHandSide instanceof Name) {
            receiverNode = (Name) leftHandSide;
        } else if (leftHandSide instanceof FieldAccess) {
            receiverNode = ((FieldAccess) leftHandSide).getName();
        }
    } else if (parentNodeType == ASTNode.VARIABLE_DECLARATION_FRAGMENT) {
        VariableDeclarationFragment frag = (VariableDeclarationFragment) selectedNode.getParent();
        if (selectedNode.equals(frag.getName()) || selectedNode.equals(frag.getInitializer())) {
            nodeToCast = frag.getInitializer();
            castTypeBinding = ASTNodes.getType(frag).resolveBinding();
            receiverNode = frag.getName();
        }
    } else if (parentNodeType == ASTNode.MEMBER_VALUE_PAIR) {
        receiverNode = ((MemberValuePair) selectedNode.getParent()).getName();
        castTypeBinding = ASTResolving.guessBindingForReference(nodeToCast);
    } else if (parentNodeType == ASTNode.SINGLE_MEMBER_ANNOTATION) {
        // use the type name
        receiverNode = ((SingleMemberAnnotation) selectedNode.getParent()).getTypeName();
        castTypeBinding = ASTResolving.guessBindingForReference(nodeToCast);
    } else {
        // try to find the binding corresponding to 'castTypeName'
        castTypeBinding = ASTResolving.guessBindingForReference(nodeToCast);
    }
    if (castTypeBinding == null) {
        return;
    }
    ITypeBinding currBinding = nodeToCast.resolveTypeBinding();
    if (!(nodeToCast instanceof ArrayInitializer)) {
        ITypeBinding castFixType = null;
        if (currBinding == null || castTypeBinding.isCastCompatible(currBinding) || nodeToCast instanceof CastExpression) {
            castFixType = castTypeBinding;
        } else if (JavaModelUtil.is50OrHigher(cu.getJavaProject())) {
            ITypeBinding boxUnboxedTypeBinding = boxUnboxPrimitives(castTypeBinding, currBinding, ast);
            if (boxUnboxedTypeBinding != castTypeBinding && boxUnboxedTypeBinding.isCastCompatible(currBinding)) {
                castFixType = boxUnboxedTypeBinding;
            }
        }
        if (castFixType != null) {
            proposals.add(createCastProposal(context, castFixType, nodeToCast, IProposalRelevance.CREATE_CAST));
        }
    }
    //$NON-NLS-1$
    boolean nullOrVoid = currBinding == null || "void".equals(currBinding.getName());
    // change method return statement to actual type
    if (!nullOrVoid && parentNodeType == ASTNode.RETURN_STATEMENT) {
        BodyDeclaration decl = ASTResolving.findParentBodyDeclaration(selectedNode);
        if (decl instanceof MethodDeclaration) {
            MethodDeclaration methodDeclaration = (MethodDeclaration) decl;
            currBinding = Bindings.normalizeTypeBinding(currBinding);
            if (currBinding == null) {
                //$NON-NLS-1$
                currBinding = ast.resolveWellKnownType("java.lang.Object");
            }
            if (currBinding.isWildcardType()) {
                currBinding = ASTResolving.normalizeWildcardType(currBinding, true, ast);
            }
            ASTRewrite rewrite = ASTRewrite.create(ast);
            String label = Messages.format(CorrectionMessages.TypeMismatchSubProcessor_changereturntype_description, BasicElementLabels.getJavaElementName(currBinding.getName()));
            Image image = JavaPluginImages.get(JavaPluginImages.IMG_CORRECTION_CHANGE);
            LinkedCorrectionProposal proposal = new LinkedCorrectionProposal(label, cu, rewrite, IProposalRelevance.CHANGE_METHOD_RETURN_TYPE, image);
            ImportRewrite imports = proposal.createImportRewrite(astRoot);
            ImportRewriteContext importRewriteContext = new ContextSensitiveImportRewriteContext(decl, imports);
            Type newReturnType = imports.addImport(currBinding, ast, importRewriteContext);
            rewrite.replace(methodDeclaration.getReturnType2(), newReturnType, null);
            //$NON-NLS-1$
            String returnKey = "return";
            proposal.addLinkedPosition(rewrite.track(newReturnType), true, returnKey);
            ITypeBinding[] typeSuggestions = ASTResolving.getRelaxingTypes(ast, currBinding);
            for (int i = 0; i < typeSuggestions.length; i++) {
                proposal.addLinkedPositionProposal(returnKey, typeSuggestions[i]);
            }
            proposals.add(proposal);
        }
    }
    if (!nullOrVoid && receiverNode != null) {
        currBinding = Bindings.normalizeTypeBinding(currBinding);
        if (currBinding == null) {
            //$NON-NLS-1$
            currBinding = ast.resolveWellKnownType("java.lang.Object");
        }
        if (currBinding.isWildcardType()) {
            currBinding = ASTResolving.normalizeWildcardType(currBinding, true, ast);
        }
        addChangeSenderTypeProposals(context, receiverNode, currBinding, true, IProposalRelevance.CHANGE_TYPE_OF_RECEIVER_NODE, proposals);
    }
    addChangeSenderTypeProposals(context, nodeToCast, castTypeBinding, false, IProposalRelevance.CHANGE_TYPE_OF_NODE_TO_CAST, proposals);
    if (castTypeBinding == ast.resolveWellKnownType("boolean") && currBinding != null && !currBinding.isPrimitive() && !Bindings.isVoidType(currBinding)) {
        //$NON-NLS-1$
        String label = CorrectionMessages.TypeMismatchSubProcessor_insertnullcheck_description;
        Image image = JavaPluginImages.get(JavaPluginImages.IMG_CORRECTION_CHANGE);
        ASTRewrite rewrite = ASTRewrite.create(astRoot.getAST());
        InfixExpression expression = ast.newInfixExpression();
        expression.setLeftOperand((Expression) rewrite.createMoveTarget(nodeToCast));
        expression.setRightOperand(ast.newNullLiteral());
        expression.setOperator(InfixExpression.Operator.NOT_EQUALS);
        rewrite.replace(nodeToCast, expression, null);
        proposals.add(new ASTRewriteCorrectionProposal(label, context.getCompilationUnit(), rewrite, IProposalRelevance.INSERT_NULL_CHECK, image));
    }
}

Example 29 with ImportRewriteContext

use of org.eclipse.jdt.core.dom.rewrite.ImportRewrite.ImportRewriteContext in project che by eclipse.

the class TypeMismatchSubProcessor method addTypeMismatchInForEachProposals.

public static void addTypeMismatchInForEachProposals(IInvocationContext context, IProblemLocation problem, Collection<ICommandAccess> proposals) {
    CompilationUnit astRoot = context.getASTRoot();
    ASTNode selectedNode = problem.getCoveringNode(astRoot);
    if (selectedNode == null || selectedNode.getLocationInParent() != EnhancedForStatement.EXPRESSION_PROPERTY) {
        return;
    }
    EnhancedForStatement forStatement = (EnhancedForStatement) selectedNode.getParent();
    ITypeBinding expressionBinding = forStatement.getExpression().resolveTypeBinding();
    if (expressionBinding == null) {
        return;
    }
    ITypeBinding expectedBinding;
    if (expressionBinding.isArray()) {
        expectedBinding = expressionBinding.getComponentType();
    } else {
        //$NON-NLS-1$
        IMethodBinding iteratorMethod = Bindings.findMethodInHierarchy(expressionBinding, "iterator", new String[0]);
        if (iteratorMethod == null) {
            return;
        }
        ITypeBinding[] typeArguments = iteratorMethod.getReturnType().getTypeArguments();
        if (typeArguments.length != 1) {
            return;
        }
        expectedBinding = typeArguments[0];
    }
    AST ast = astRoot.getAST();
    expectedBinding = Bindings.normalizeForDeclarationUse(expectedBinding, ast);
    SingleVariableDeclaration parameter = forStatement.getParameter();
    ICompilationUnit cu = context.getCompilationUnit();
    if (parameter.getName().getLength() == 0) {
        SimpleName simpleName = null;
        if (parameter.getType() instanceof SimpleType) {
            SimpleType type = (SimpleType) parameter.getType();
            if (type.getName() instanceof SimpleName) {
                simpleName = (SimpleName) type.getName();
            }
        } else if (parameter.getType() instanceof NameQualifiedType) {
            simpleName = ((NameQualifiedType) parameter.getType()).getName();
        }
        if (simpleName != null) {
            String name = simpleName.getIdentifier();
            int relevance = StubUtility.hasLocalVariableName(cu.getJavaProject(), name) ? 10 : 7;
            String label = Messages.format(CorrectionMessages.TypeMismatchSubProcessor_create_loop_variable_description, BasicElementLabels.getJavaElementName(name));
            Image image = JavaPluginImages.get(JavaPluginImages.IMG_CORRECTION_LOCAL);
            proposals.add(new NewVariableCorrectionProposal(label, cu, NewVariableCorrectionProposal.LOCAL, simpleName, null, relevance, image));
            return;
        }
    }
    String label = Messages.format(CorrectionMessages.TypeMismatchSubProcessor_incompatible_for_each_type_description, new String[] { BasicElementLabels.getJavaElementName(parameter.getName().getIdentifier()), BindingLabelProvider.getBindingLabel(expectedBinding, BindingLabelProvider.DEFAULT_TEXTFLAGS) });
    Image image = JavaPluginImages.get(JavaPluginImages.IMG_CORRECTION_CHANGE);
    ASTRewrite rewrite = ASTRewrite.create(ast);
    ASTRewriteCorrectionProposal proposal = new ASTRewriteCorrectionProposal(label, cu, rewrite, IProposalRelevance.INCOMPATIBLE_FOREACH_TYPE, image);
    ImportRewrite importRewrite = proposal.createImportRewrite(astRoot);
    ImportRewriteContext importRewriteContext = new ContextSensitiveImportRewriteContext(ASTResolving.findParentBodyDeclaration(selectedNode), importRewrite);
    Type newType = importRewrite.addImport(expectedBinding, ast, importRewriteContext);
    rewrite.replace(parameter.getType(), newType, null);
    proposals.add(proposal);
}

Example 30 with ImportRewriteContext

use of org.eclipse.jdt.core.dom.rewrite.ImportRewrite.ImportRewriteContext in project che by eclipse.

the class UnresolvedElementsSubProcessor method addQualifierToOuterProposal.

private static void addQualifierToOuterProposal(IInvocationContext context, MethodInvocation invocationNode, IMethodBinding binding, Collection<ICommandAccess> proposals) {
    ITypeBinding declaringType = binding.getDeclaringClass();
    ITypeBinding parentType = Bindings.getBindingOfParentType(invocationNode);
    ITypeBinding currType = parentType;
    boolean isInstanceMethod = !Modifier.isStatic(binding.getModifiers());
    while (currType != null && !Bindings.isSuperType(declaringType, currType)) {
        if (isInstanceMethod && Modifier.isStatic(currType.getModifiers())) {
            return;
        }
        currType = currType.getDeclaringClass();
    }
    if (currType == null || currType == parentType) {
        return;
    }
    ASTRewrite rewrite = ASTRewrite.create(invocationNode.getAST());
    String label = Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_changetoouter_description, ASTResolving.getTypeSignature(currType));
    Image image = JavaPluginImages.get(JavaPluginImages.IMG_CORRECTION_CHANGE);
    ASTRewriteCorrectionProposal proposal = new ASTRewriteCorrectionProposal(label, context.getCompilationUnit(), rewrite, IProposalRelevance.QUALIFY_WITH_ENCLOSING_TYPE, image);
    ImportRewrite imports = proposal.createImportRewrite(context.getASTRoot());
    ImportRewriteContext importRewriteContext = new ContextSensitiveImportRewriteContext(invocationNode, imports);
    AST ast = invocationNode.getAST();
    String qualifier = imports.addImport(currType, importRewriteContext);
    Name name = ASTNodeFactory.newName(ast, qualifier);
    Expression newExpression;
    if (isInstanceMethod) {
        ThisExpression expr = ast.newThisExpression();
        expr.setQualifier(name);
        newExpression = expr;
    } else {
        newExpression = name;
    }
    rewrite.set(invocationNode, MethodInvocation.EXPRESSION_PROPERTY, newExpression, null);
    proposals.add(proposal);
}