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

Example 56 with Block

use of org.eclipse.jdt.core.dom.Block in project flux by eclipse.

the class ModifierCorrectionSubProcessor method addMethodRequiresBodyProposals.

public static void addMethodRequiresBodyProposals(IInvocationContext context, IProblemLocation problem, Collection<ICommandAccess> proposals) {
    ICompilationUnit cu = context.getCompilationUnit();
    AST ast = context.getASTRoot().getAST();
    ASTNode selectedNode = problem.getCoveringNode(context.getASTRoot());
    if (!(selectedNode instanceof MethodDeclaration)) {
        return;
    }
    MethodDeclaration decl = (MethodDeclaration) selectedNode;
    Modifier modifierNode;
    {
        ASTRewrite rewrite = ASTRewrite.create(ast);
        modifierNode = removeModifier(decl, rewrite, Modifier.ABSTRACT);
        Block body = ast.newBlock();
        rewrite.set(decl, MethodDeclaration.BODY_PROPERTY, body, null);
        if (!decl.isConstructor()) {
            Type returnType = decl.getReturnType2();
            if (returnType != null) {
                Expression expression = ASTNodeFactory.newDefaultExpression(ast, returnType, decl.getExtraDimensions());
                if (expression != null) {
                    ReturnStatement returnStatement = ast.newReturnStatement();
                    returnStatement.setExpression(expression);
                    body.statements().add(returnStatement);
                }
            }
        }
        String label = CorrectionMessages.ModifierCorrectionSubProcessor_addmissingbody_description;
        //			Image image= JavaPluginImages.get(JavaPluginImages.IMG_CORRECTION_CHANGE);
        ASTRewriteCorrectionProposal proposal = new ASTRewriteCorrectionProposal(label, cu, rewrite, IProposalRelevance.ADD_MISSING_BODY);
        proposals.add(proposal);
    }
    IMethodBinding binding = decl.resolveBinding();
    if (modifierNode == null && binding != null) {
        String label = Messages.format(CorrectionMessages.ModifierCorrectionSubProcessor_changemodifiertoabstract_description, getMethodLabel(binding));
        //			Image image= JavaPluginImages.get(JavaPluginImages.IMG_CORRECTION_CHANGE);
        int included = binding.getDeclaringClass().isInterface() ? Modifier.NONE : Modifier.ABSTRACT;
        int excluded = Modifier.STATIC | Modifier.DEFAULT;
        ModifierChangeCorrectionProposal proposal = new ModifierChangeCorrectionProposal(label, cu, binding, decl, included, excluded, IProposalRelevance.ADD_ABSTRACT_MODIFIER);
        proposals.add(proposal);
    }
}

Example 57 with Block

use of org.eclipse.jdt.core.dom.Block in project flux by eclipse.

the class QuickAssistProcessor method getChangeLambdaBodyToBlockProposal.

private static boolean getChangeLambdaBodyToBlockProposal(IInvocationContext context, ASTNode covering, Collection<ICommandAccess> resultingCollections) {
    LambdaExpression lambda;
    if (covering instanceof LambdaExpression) {
        lambda = (LambdaExpression) covering;
    } else if (covering.getLocationInParent() == LambdaExpression.BODY_PROPERTY) {
        lambda = (LambdaExpression) covering.getParent();
    } else {
        return false;
    }
    if (!(lambda.getBody() instanceof Expression))
        return false;
    if (lambda.resolveMethodBinding() == null)
        return false;
    if (resultingCollections == null)
        return true;
    AST ast = lambda.getAST();
    ASTRewrite rewrite = ASTRewrite.create(ast);
    Statement statementInBlockBody;
    Expression bodyExpr = (Expression) rewrite.createMoveTarget(lambda.getBody());
    if (ast.resolveWellKnownType("void").isEqualTo(lambda.resolveMethodBinding().getReturnType())) {
        //$NON-NLS-1$
        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);
    rewrite.set(lambda, LambdaExpression.BODY_PROPERTY, blockBody, null);
    // add proposal
    String label = CorrectionMessages.QuickAssistProcessor_change_lambda_body_to_block;
    //		Image image= JavaPluginImages.get(JavaPluginImages.IMG_CORRECTION_CHANGE);
    ASTRewriteCorrectionProposal proposal = new ASTRewriteCorrectionProposal(label, context.getCompilationUnit(), rewrite, IProposalRelevance.CHANGE_LAMBDA_BODY_TO_BLOCK);
    resultingCollections.add(proposal);
    return true;
}

Example 58 with Block

use of org.eclipse.jdt.core.dom.Block in project flux by eclipse.

the class AdvancedQuickAssistProcessor method getUnwrappedStatements.

private static ArrayList<Statement> getUnwrappedStatements(Statement body) {
    ArrayList<Statement> statements = new ArrayList<Statement>();
    if (body instanceof Block) {
        for (Iterator<Statement> iter = ((Block) body).statements().iterator(); iter.hasNext(); ) {
            Statement statement = iter.next();
            statements.add(statement);
        }
    } else {
        statements.add(body);
    }
    return statements;
}

Example 59 with Block

use of org.eclipse.jdt.core.dom.Block in project flux by eclipse.

the class QuickAssistProcessor method getCopyOfInner.

public static ASTNode getCopyOfInner(ASTRewrite rewrite, ASTNode statement, boolean toControlStatementBody) {
    if (statement.getNodeType() == ASTNode.BLOCK) {
        Block block = (Block) statement;
        List<Statement> innerStatements = block.statements();
        int nStatements = innerStatements.size();
        if (nStatements == 1) {
            return rewrite.createCopyTarget(innerStatements.get(0));
        } else if (nStatements > 1) {
            if (toControlStatementBody) {
                return rewrite.createCopyTarget(block);
            }
            ListRewrite listRewrite = rewrite.getListRewrite(block, Block.STATEMENTS_PROPERTY);
            ASTNode first = innerStatements.get(0);
            ASTNode last = innerStatements.get(nStatements - 1);
            return listRewrite.createCopyTarget(first, last);
        }
        return null;
    } else {
        return rewrite.createCopyTarget(statement);
    }
}

Example 60 with Block

use of org.eclipse.jdt.core.dom.Block in project flux by eclipse.

the class QuickAssistProcessor method removeCatchBlock.

private static void removeCatchBlock(ASTRewrite rewrite, CatchClause catchClause) {
    TryStatement tryStatement = (TryStatement) catchClause.getParent();
    if (tryStatement.catchClauses().size() > 1 || tryStatement.getFinally() != null || !tryStatement.resources().isEmpty()) {
        rewrite.remove(catchClause, null);
    } else {
        Block block = tryStatement.getBody();
        List<Statement> statements = block.statements();
        int nStatements = statements.size();
        if (nStatements == 1) {
            ASTNode first = statements.get(0);
            rewrite.replace(tryStatement, rewrite.createCopyTarget(first), null);
        } else if (nStatements > 1) {
            ListRewrite listRewrite = rewrite.getListRewrite(block, Block.STATEMENTS_PROPERTY);
            ASTNode first = statements.get(0);
            ASTNode last = statements.get(statements.size() - 1);
            ASTNode newStatement = listRewrite.createCopyTarget(first, last);
            if (ASTNodes.isControlStatementBody(tryStatement.getLocationInParent())) {
                Block newBlock = rewrite.getAST().newBlock();
                newBlock.statements().add(newStatement);
                newStatement = newBlock;
            }
            rewrite.replace(tryStatement, newStatement, null);
        } else {
            rewrite.remove(tryStatement, null);
        }
    }
}