Examples with ReturnStatement org.eclipse.jdt.core.dom.ReturnStatement used on opensource projects

Example 51 with ReturnStatement

use of org.eclipse.jdt.core.dom.ReturnStatement in project che by eclipse.

the class SelfEncapsulateFieldRefactoring method createSetterMethod.

private MethodDeclaration createSetterMethod(AST ast, ASTRewrite rewriter, String lineDelimiter) throws CoreException {
    FieldDeclaration field = (FieldDeclaration) ASTNodes.getParent(fFieldDeclaration, FieldDeclaration.class);
    Type type = field.getType();
    MethodDeclaration result = ast.newMethodDeclaration();
    result.setName(ast.newSimpleName(fSetterName));
    result.modifiers().addAll(ASTNodeFactory.newModifiers(ast, createModifiers()));
    if (fSetterMustReturnValue) {
        result.setReturnType2((Type) rewriter.createCopyTarget(type));
    }
    SingleVariableDeclaration param = ast.newSingleVariableDeclaration();
    result.parameters().add(param);
    param.setName(ast.newSimpleName(fArgName));
    param.setType((Type) rewriter.createCopyTarget(type));
    List<Dimension> extraDimensions = DimensionRewrite.copyDimensions(fFieldDeclaration.extraDimensions(), rewriter);
    param.extraDimensions().addAll(extraDimensions);
    Block block = ast.newBlock();
    result.setBody(block);
    String fieldAccess = createFieldAccess();
    String body = CodeGeneration.getSetterMethodBodyContent(fField.getCompilationUnit(), getTypeName(field.getParent()), fSetterName, fieldAccess, fArgName, lineDelimiter);
    if (body != null) {
        ASTNode setterNode = rewriter.createStringPlaceholder(body, ASTNode.BLOCK);
        block.statements().add(setterNode);
    } else {
        Assignment ass = ast.newAssignment();
        ass.setLeftHandSide((Expression) rewriter.createStringPlaceholder(fieldAccess, ASTNode.QUALIFIED_NAME));
        ass.setRightHandSide(ast.newSimpleName(fArgName));
        block.statements().add(ass);
    }
    if (fSetterMustReturnValue) {
        ReturnStatement rs = ast.newReturnStatement();
        rs.setExpression(ast.newSimpleName(fArgName));
        block.statements().add(rs);
    }
    if (fGenerateJavadoc) {
        String string = CodeGeneration.getSetterComment(fField.getCompilationUnit(), getTypeName(field.getParent()), fSetterName, fField.getElementName(), ASTNodes.asString(type), fArgName, StubUtility.getBaseName(fField), lineDelimiter);
        if (string != null) {
            Javadoc javadoc = (Javadoc) fRewriter.createStringPlaceholder(string, ASTNode.JAVADOC);
            result.setJavadoc(javadoc);
        }
    }
    return result;
}

Example 52 with ReturnStatement

use of org.eclipse.jdt.core.dom.ReturnStatement in project eclipse.jdt.ls by eclipse.

the class QuickAssistProcessor method getBlockBodyForLambda.

private static Block getBlockBodyForLambda(Expression bodyExpr, ITypeBinding returnTypeBinding, AST ast) {
    Statement statementInBlockBody;
    if (ast.resolveWellKnownType("void").isEqualTo(returnTypeBinding)) {
        // $NON-NLS-1$
        ExpressionStatement expressionStatement = ast.newExpressionStatement(bodyExpr);
        statementInBlockBody = expressionStatement;
    } else {
        ReturnStatement returnStatement = ast.newReturnStatement();
        returnStatement.setExpression(bodyExpr);
        statementInBlockBody = returnStatement;
    }
    Block blockBody = ast.newBlock();
    blockBody.statements().add(statementInBlockBody);
    return blockBody;
}

Example 53 with ReturnStatement

use of org.eclipse.jdt.core.dom.ReturnStatement in project eclipse.jdt.ls by eclipse.

the class ExtractTempRefactoring method insertAt.

private void insertAt(ASTNode target, Statement declaration) {
    ASTRewrite rewrite = fCURewrite.getASTRewrite();
    TextEditGroup groupDescription = fCURewrite.createGroupDescription(RefactoringCoreMessages.ExtractTempRefactoring_declare_local_variable);
    ASTNode parent = target.getParent();
    StructuralPropertyDescriptor locationInParent = target.getLocationInParent();
    while (locationInParent != Block.STATEMENTS_PROPERTY && locationInParent != SwitchStatement.STATEMENTS_PROPERTY) {
        if (locationInParent == IfStatement.THEN_STATEMENT_PROPERTY || locationInParent == IfStatement.ELSE_STATEMENT_PROPERTY || locationInParent == ForStatement.BODY_PROPERTY || locationInParent == EnhancedForStatement.BODY_PROPERTY || locationInParent == DoStatement.BODY_PROPERTY || locationInParent == WhileStatement.BODY_PROPERTY) {
            // create intermediate block if target was the body property of a control statement:
            Block replacement = rewrite.getAST().newBlock();
            ListRewrite replacementRewrite = rewrite.getListRewrite(replacement, Block.STATEMENTS_PROPERTY);
            replacementRewrite.insertFirst(declaration, null);
            replacementRewrite.insertLast(rewrite.createMoveTarget(target), null);
            rewrite.replace(target, replacement, groupDescription);
            return;
        } else if (locationInParent == LambdaExpression.BODY_PROPERTY && ((LambdaExpression) parent).getBody() instanceof Expression) {
            Block replacement = rewrite.getAST().newBlock();
            ListRewrite replacementRewrite = rewrite.getListRewrite(replacement, Block.STATEMENTS_PROPERTY);
            replacementRewrite.insertFirst(declaration, null);
            ASTNode moveTarget = rewrite.createMoveTarget(target);
            AST ast = rewrite.getAST();
            if (Bindings.isVoidType(((LambdaExpression) parent).resolveMethodBinding().getReturnType())) {
                ExpressionStatement expressionStatement = ast.newExpressionStatement((Expression) moveTarget);
                moveTarget = expressionStatement;
            } else {
                ReturnStatement returnStatement = ast.newReturnStatement();
                returnStatement.setExpression((Expression) moveTarget);
                moveTarget = returnStatement;
            }
            replacementRewrite.insertLast(moveTarget, null);
            rewrite.replace(target, replacement, groupDescription);
            return;
        }
        target = parent;
        parent = parent.getParent();
        locationInParent = target.getLocationInParent();
    }
    ListRewrite listRewrite = rewrite.getListRewrite(parent, (ChildListPropertyDescriptor) locationInParent);
    listRewrite.insertBefore(declaration, target, groupDescription);
}

Example 54 with ReturnStatement

use of org.eclipse.jdt.core.dom.ReturnStatement in project eclipse.jdt.ls by eclipse.

the class ReturnTypeSubProcessor method addMissingReturnStatementProposals.

public static void addMissingReturnStatementProposals(IInvocationContext context, IProblemLocation problem, Collection<CUCorrectionProposal> proposals) {
    ICompilationUnit cu = context.getCompilationUnit();
    ASTNode selectedNode = problem.getCoveringNode(context.getASTRoot());
    if (selectedNode == null) {
        return;
    }
    ReturnStatement existingStatement = (selectedNode instanceof ReturnStatement) ? (ReturnStatement) selectedNode : null;
    // Lambda Expression can be in a MethodDeclaration or a Field Declaration
    if (selectedNode instanceof LambdaExpression) {
        MissingReturnTypeInLambdaCorrectionProposal proposal = new MissingReturnTypeInLambdaCorrectionProposal(cu, (LambdaExpression) selectedNode, existingStatement, IProposalRelevance.MISSING_RETURN_TYPE);
        proposals.add(proposal);
    } else {
        BodyDeclaration decl = ASTResolving.findParentBodyDeclaration(selectedNode);
        if (decl instanceof MethodDeclaration) {
            MethodDeclaration methodDecl = (MethodDeclaration) decl;
            Block block = methodDecl.getBody();
            if (block == null) {
                return;
            }
            proposals.add(new MissingReturnTypeCorrectionProposal(cu, methodDecl, existingStatement, IProposalRelevance.MISSING_RETURN_TYPE));
            Type returnType = methodDecl.getReturnType2();
            if (returnType != null && !"void".equals(ASTNodes.asString(returnType))) {
                // $NON-NLS-1$
                AST ast = methodDecl.getAST();
                ASTRewrite rewrite = ASTRewrite.create(ast);
                rewrite.replace(returnType, ast.newPrimitiveType(PrimitiveType.VOID), null);
                Javadoc javadoc = methodDecl.getJavadoc();
                if (javadoc != null) {
                    TagElement tagElement = JavadocTagsSubProcessor.findTag(javadoc, TagElement.TAG_RETURN, null);
                    if (tagElement != null) {
                        rewrite.remove(tagElement, null);
                    }
                }
                String label = CorrectionMessages.ReturnTypeSubProcessor_changetovoid_description;
                ASTRewriteCorrectionProposal proposal = new ASTRewriteCorrectionProposal(label, cu, rewrite, IProposalRelevance.CHANGE_RETURN_TYPE_TO_VOID);
                proposals.add(proposal);
            }
        }
    }
}

Example 55 with ReturnStatement

use of org.eclipse.jdt.core.dom.ReturnStatement in project eclipse.jdt.ls by eclipse.

the class ReturnTypeSubProcessor method addVoidMethodReturnsProposals.

public static void addVoidMethodReturnsProposals(IInvocationContext context, IProblemLocation problem, Collection<CUCorrectionProposal> proposals) {
    ICompilationUnit cu = context.getCompilationUnit();
    CompilationUnit astRoot = context.getASTRoot();
    ASTNode selectedNode = problem.getCoveringNode(astRoot);
    if (selectedNode == null) {
        return;
    }
    BodyDeclaration decl = ASTResolving.findParentBodyDeclaration(selectedNode);
    if (decl instanceof MethodDeclaration && selectedNode.getNodeType() == ASTNode.RETURN_STATEMENT) {
        ReturnStatement returnStatement = (ReturnStatement) selectedNode;
        Expression expr = returnStatement.getExpression();
        if (expr != null) {
            AST ast = astRoot.getAST();
            ITypeBinding binding = Bindings.normalizeTypeBinding(expr.resolveTypeBinding());
            if (binding == null) {
                // $NON-NLS-1$
                binding = ast.resolveWellKnownType("java.lang.Object");
            }
            if (binding.isWildcardType()) {
                binding = ASTResolving.normalizeWildcardType(binding, true, ast);
            }
            MethodDeclaration methodDeclaration = (MethodDeclaration) decl;
            ASTRewrite rewrite = ASTRewrite.create(ast);
            String label = Messages.format(CorrectionMessages.ReturnTypeSubProcessor_voidmethodreturns_description, BindingLabelProvider.getBindingLabel(binding, BindingLabelProvider.DEFAULT_TEXTFLAGS));
            LinkedCorrectionProposal proposal = new LinkedCorrectionProposal(label, cu, rewrite, IProposalRelevance.VOID_METHOD_RETURNS);
            ImportRewrite imports = proposal.createImportRewrite(astRoot);
            ImportRewriteContext importRewriteContext = new ContextSensitiveImportRewriteContext(methodDeclaration, imports);
            Type newReturnType = imports.addImport(binding, ast, importRewriteContext, TypeLocation.RETURN_TYPE);
            if (methodDeclaration.isConstructor()) {
                rewrite.set(methodDeclaration, MethodDeclaration.CONSTRUCTOR_PROPERTY, Boolean.FALSE, null);
                rewrite.set(methodDeclaration, MethodDeclaration.RETURN_TYPE2_PROPERTY, newReturnType, null);
            } else {
                rewrite.replace(methodDeclaration.getReturnType2(), newReturnType, null);
            }
            // $NON-NLS-1$
            String key = "return_type";
            proposal.addLinkedPosition(rewrite.track(newReturnType), true, key);
            ITypeBinding[] bindings = ASTResolving.getRelaxingTypes(ast, binding);
            for (int i = 0; i < bindings.length; i++) {
                proposal.addLinkedPositionProposal(key, bindings[i]);
            }
            Javadoc javadoc = methodDeclaration.getJavadoc();
            if (javadoc != null) {
                TagElement newTag = ast.newTagElement();
                newTag.setTagName(TagElement.TAG_RETURN);
                TextElement commentStart = ast.newTextElement();
                newTag.fragments().add(commentStart);
                JavadocTagsSubProcessor.insertTag(rewrite.getListRewrite(javadoc, Javadoc.TAGS_PROPERTY), newTag, null);
                // $NON-NLS-1$
                proposal.addLinkedPosition(rewrite.track(commentStart), false, "comment_start");
            }
            proposals.add(proposal);
        }
        ASTRewrite rewrite = ASTRewrite.create(decl.getAST());
        rewrite.remove(returnStatement.getExpression(), null);
        String label = CorrectionMessages.ReturnTypeSubProcessor_removereturn_description;
        ASTRewriteCorrectionProposal proposal = new ASTRewriteCorrectionProposal(label, cu, rewrite, IProposalRelevance.CHANGE_TO_RETURN);
        proposals.add(proposal);
    }
}