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

Example 66 with ListRewrite

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

the class LocalCorrectionsSubProcessor method addFallThroughProposals.

public static void addFallThroughProposals(IInvocationContext context, IProblemLocation problem, Collection<ICommandAccess> proposals) {
    ASTNode selectedNode = problem.getCoveringNode(context.getASTRoot());
    if (selectedNode instanceof SwitchCase && selectedNode.getLocationInParent() == SwitchStatement.STATEMENTS_PROPERTY) {
        AST ast = selectedNode.getAST();
        ASTNode parent = selectedNode.getParent();
        // insert break:
        ASTRewrite rewrite = ASTRewrite.create(ast);
        ListRewrite listRewrite = rewrite.getListRewrite(parent, SwitchStatement.STATEMENTS_PROPERTY);
        listRewrite.insertBefore(ast.newBreakStatement(), selectedNode, null);
        String label = CorrectionMessages.LocalCorrectionsSubProcessor_insert_break_statement;
        Image image = JavaPluginImages.get(JavaPluginImages.IMG_CORRECTION_CHANGE);
        ASTRewriteCorrectionProposal proposal = new ASTRewriteCorrectionProposal(label, context.getCompilationUnit(), rewrite, IProposalRelevance.INSERT_BREAK_STATEMENT, image);
        proposals.add(proposal);
        // insert //$FALL-THROUGH$:
        rewrite = ASTRewrite.create(ast);
        rewrite.setTargetSourceRangeComputer(new NoCommentSourceRangeComputer());
        listRewrite = rewrite.getListRewrite(parent, SwitchStatement.STATEMENTS_PROPERTY);
        //$NON-NLS-1$
        ASTNode fallThroughComment = rewrite.createStringPlaceholder("//$FALL-THROUGH$", ASTNode.EMPTY_STATEMENT);
        listRewrite.insertBefore(fallThroughComment, selectedNode, null);
        label = CorrectionMessages.LocalCorrectionsSubProcessor_insert_fall_through;
        image = JavaPluginImages.get(JavaPluginImages.IMG_CORRECTION_CHANGE);
        proposal = new ASTRewriteCorrectionProposal(label, context.getCompilationUnit(), rewrite, IProposalRelevance.INSERT_FALL_THROUGH, image);
        proposals.add(proposal);
    }
}

Example 67 with ListRewrite

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

the class ModifierRewrite method copyAllModifiers.

public void copyAllModifiers(ASTNode otherDecl, TextEditGroup editGroup, boolean copyIndividually) {
    ListRewrite modifierList = evaluateListRewrite(fModifierRewrite.getASTRewrite(), otherDecl);
    List<IExtendedModifier> originalList = modifierList.getOriginalList();
    if (originalList.isEmpty()) {
        return;
    }
    if (copyIndividually) {
        for (Iterator<IExtendedModifier> iterator = originalList.iterator(); iterator.hasNext(); ) {
            ASTNode modifier = (ASTNode) iterator.next();
            ASTNode copy = fModifierRewrite.getASTRewrite().createCopyTarget(modifier);
            if (copy != null) {
                //paranoia check (only left here because we're in RC1)
                fModifierRewrite.insertLast(copy, editGroup);
            }
        }
    } else {
        ASTNode copy = modifierList.createCopyTarget((ASTNode) originalList.get(0), (ASTNode) originalList.get(originalList.size() - 1));
        if (copy != null) {
            //paranoia check (only left here because we're in RC1)
            fModifierRewrite.insertLast(copy, editGroup);
        }
    }
}

Example 68 with ListRewrite

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

the class QuickAssistProcessor method getUnrollMultiCatchProposals.

private static boolean getUnrollMultiCatchProposals(IInvocationContext context, ASTNode covering, Collection<ICommandAccess> resultingCollections) {
    if (!JavaModelUtil.is17OrHigher(context.getCompilationUnit().getJavaProject()))
        return false;
    CatchClause catchClause = (CatchClause) ASTResolving.findAncestor(covering, ASTNode.CATCH_CLAUSE);
    if (catchClause == null) {
        return false;
    }
    Statement statement = ASTResolving.findParentStatement(covering);
    if (statement != catchClause.getParent() && statement != catchClause.getBody()) {
        // selection is in a statement inside the body
        return false;
    }
    Type type1 = catchClause.getException().getType();
    Type selectedMultiCatchType = null;
    if (type1.isUnionType() && covering instanceof Name) {
        Name topMostName = ASTNodes.getTopMostName((Name) covering);
        ASTNode parent = topMostName.getParent();
        if (parent instanceof SimpleType || parent instanceof NameQualifiedType) {
            selectedMultiCatchType = (Type) parent;
        }
    }
    if (selectedMultiCatchType != null)
        return false;
    SingleVariableDeclaration singleVariableDeclaration = catchClause.getException();
    Type type = singleVariableDeclaration.getType();
    if (!(type instanceof UnionType))
        return false;
    if (resultingCollections == null)
        return true;
    AST ast = covering.getAST();
    ASTRewrite rewrite = ASTRewrite.create(ast);
    TryStatement tryStatement = (TryStatement) catchClause.getParent();
    ListRewrite listRewrite = rewrite.getListRewrite(tryStatement, TryStatement.CATCH_CLAUSES_PROPERTY);
    UnionType unionType = (UnionType) type;
    List<Type> types = unionType.types();
    for (int i = types.size() - 1; i >= 0; i--) {
        Type type2 = types.get(i);
        CatchClause newCatchClause = ast.newCatchClause();
        SingleVariableDeclaration newSingleVariableDeclaration = ast.newSingleVariableDeclaration();
        newSingleVariableDeclaration.setType((Type) rewrite.createCopyTarget(type2));
        newSingleVariableDeclaration.setName((SimpleName) rewrite.createCopyTarget(singleVariableDeclaration.getName()));
        newCatchClause.setException(newSingleVariableDeclaration);
        setCatchClauseBody(newCatchClause, rewrite, catchClause);
        listRewrite.insertAfter(newCatchClause, catchClause, null);
    }
    rewrite.remove(catchClause, null);
    Image image = JavaPluginImages.get(JavaPluginImages.IMG_CORRECTION_CHANGE);
    String label = CorrectionMessages.QuickAssistProcessor_convert_to_multiple_singletype_catch_blocks;
    ASTRewriteCorrectionProposal proposal = new ASTRewriteCorrectionProposal(label, context.getCompilationUnit(), rewrite, IProposalRelevance.USE_SEPARATE_CATCH_BLOCKS, image);
    resultingCollections.add(proposal);
    return true;
}

Example 69 with ListRewrite

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

the class QuickAssistProcessor method getPickoutTypeFromMulticatchProposals.

private static boolean getPickoutTypeFromMulticatchProposals(IInvocationContext context, ASTNode node, ArrayList<ASTNode> coveredNodes, Collection<ICommandAccess> resultingCollections) {
    CatchClause catchClause = (CatchClause) ASTResolving.findAncestor(node, ASTNode.CATCH_CLAUSE);
    if (catchClause == null) {
        return false;
    }
    Statement statement = ASTResolving.findParentStatement(node);
    if (statement != catchClause.getParent() && statement != catchClause.getBody()) {
        // selection is in a statement inside the body
        return false;
    }
    Type type = catchClause.getException().getType();
    if (!type.isUnionType()) {
        return false;
    }
    Type selectedMultiCatchType = null;
    if (type.isUnionType() && node instanceof Name) {
        Name topMostName = ASTNodes.getTopMostName((Name) node);
        ASTNode parent = topMostName.getParent();
        if (parent instanceof SimpleType || parent instanceof NameQualifiedType) {
            selectedMultiCatchType = (Type) parent;
        }
    }
    boolean multipleExceptions = coveredNodes.size() > 1;
    if ((selectedMultiCatchType == null) && (!(node instanceof UnionType) || !multipleExceptions)) {
        return false;
    }
    if (!multipleExceptions) {
        coveredNodes.add(selectedMultiCatchType);
    }
    BodyDeclaration bodyDeclaration = ASTResolving.findParentBodyDeclaration(catchClause);
    if (!(bodyDeclaration instanceof MethodDeclaration) && !(bodyDeclaration instanceof Initializer)) {
        return false;
    }
    if (resultingCollections == null) {
        return true;
    }
    AST ast = bodyDeclaration.getAST();
    ASTRewrite rewrite = ASTRewrite.create(ast);
    CatchClause newCatchClause = ast.newCatchClause();
    SingleVariableDeclaration newSingleVariableDeclaration = ast.newSingleVariableDeclaration();
    UnionType newUnionType = ast.newUnionType();
    List<Type> types = newUnionType.types();
    for (int i = 0; i < coveredNodes.size(); i++) {
        ASTNode typeNode = coveredNodes.get(i);
        types.add((Type) rewrite.createCopyTarget(typeNode));
        rewrite.remove(typeNode, null);
    }
    newSingleVariableDeclaration.setType(newUnionType);
    newSingleVariableDeclaration.setName((SimpleName) rewrite.createCopyTarget(catchClause.getException().getName()));
    newCatchClause.setException(newSingleVariableDeclaration);
    setCatchClauseBody(newCatchClause, rewrite, catchClause);
    TryStatement tryStatement = (TryStatement) catchClause.getParent();
    ListRewrite listRewrite = rewrite.getListRewrite(tryStatement, TryStatement.CATCH_CLAUSES_PROPERTY);
    listRewrite.insertAfter(newCatchClause, catchClause, null);
    Image image = JavaPluginImages.get(JavaPluginImages.IMG_OBJS_EXCEPTION);
    String label = !multipleExceptions ? CorrectionMessages.QuickAssistProcessor_move_exception_to_separate_catch_block : CorrectionMessages.QuickAssistProcessor_move_exceptions_to_separate_catch_block;
    ASTRewriteCorrectionProposal proposal = new ASTRewriteCorrectionProposal(label, context.getCompilationUnit(), rewrite, IProposalRelevance.MOVE_EXCEPTION_TO_SEPERATE_CATCH_BLOCK, image);
    resultingCollections.add(proposal);
    return true;
}

Example 70 with ListRewrite

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

the class ChangeMethodSignatureProposal method modifyParameters.

private void modifyParameters(ASTRewrite rewrite, MethodDeclaration methodDecl) {
    AST ast = methodDecl.getAST();
    ArrayList<String> usedNames = new ArrayList<String>();
    boolean hasCreatedVariables = false;
    IVariableBinding[] declaredFields = fSenderBinding.getDeclaringClass().getDeclaredFields();
    for (int i = 0; i < declaredFields.length; i++) {
        // avoid to take parameter names that are equal to field names
        usedNames.add(declaredFields[i].getName());
    }
    ImportRewrite imports = getImportRewrite();
    ImportRewriteContext context = new ContextSensitiveImportRewriteContext(methodDecl, imports);
    ListRewrite listRewrite = rewrite.getListRewrite(methodDecl, MethodDeclaration.PARAMETERS_PROPERTY);
    // old parameters
    List<SingleVariableDeclaration> parameters = methodDecl.parameters();
    // index over the oldParameters
    int k = 0;
    for (int i = 0; i < fParameterChanges.length; i++) {
        ChangeDescription curr = fParameterChanges[i];
        if (curr == null) {
            SingleVariableDeclaration oldParam = parameters.get(k);
            usedNames.add(oldParam.getName().getIdentifier());
            k++;
        } else if (curr instanceof InsertDescription) {
            InsertDescription desc = (InsertDescription) curr;
            SingleVariableDeclaration newNode = ast.newSingleVariableDeclaration();
            newNode.setType(imports.addImport(desc.type, ast, context));
            //$NON-NLS-1$
            newNode.setName(ast.newSimpleName("x"));
            // remember to set name later
            desc.resultingParamName = new SimpleName[] { newNode.getName() };
            desc.resultingParamType = newNode.getType();
            hasCreatedVariables = true;
            listRewrite.insertAt(newNode, i, null);
            Javadoc javadoc = methodDecl.getJavadoc();
            if (javadoc != null) {
                TagElement newTagElement = ast.newTagElement();
                newTagElement.setTagName(TagElement.TAG_PARAM);
                //$NON-NLS-1$
                SimpleName arg = ast.newSimpleName("x");
                newTagElement.fragments().add(arg);
                //$NON-NLS-1$
                insertTabStop(rewrite, newTagElement.fragments(), "param_tagcomment" + i);
                insertParamTag(rewrite.getListRewrite(javadoc, Javadoc.TAGS_PROPERTY), parameters, k, newTagElement);
                // set the name later
                desc.resultingTagArg = arg;
            } else {
                desc.resultingTagArg = null;
            }
        } else if (curr instanceof RemoveDescription) {
            SingleVariableDeclaration decl = parameters.get(k);
            listRewrite.remove(decl, null);
            k++;
            TagElement tagNode = findParamTag(methodDecl, decl);
            if (tagNode != null) {
                rewrite.remove(tagNode, null);
            }
        } else if (curr instanceof EditDescription) {
            EditDescription desc = (EditDescription) curr;
            ITypeBinding newTypeBinding = desc.type;
            SingleVariableDeclaration decl = parameters.get(k);
            if (k == parameters.size() - 1 && i == fParameterChanges.length - 1 && decl.isVarargs() && newTypeBinding.isArray()) {
                // stick with varargs if it was before
                newTypeBinding = newTypeBinding.getElementType();
            } else {
                rewrite.set(decl, SingleVariableDeclaration.VARARGS_PROPERTY, Boolean.FALSE, null);
            }
            Type newType = imports.addImport(newTypeBinding, ast, context);
            rewrite.replace(decl.getType(), newType, null);
            DimensionRewrite.removeAllChildren(decl, SingleVariableDeclaration.EXTRA_DIMENSIONS2_PROPERTY, rewrite, null);
            IBinding binding = decl.getName().resolveBinding();
            if (binding != null) {
                SimpleName[] names = LinkedNodeFinder.findByBinding(decl.getRoot(), binding);
                SimpleName[] newNames = new SimpleName[names.length];
                for (int j = 0; j < names.length; j++) {
                    //$NON-NLS-1$  // name will be set later
                    SimpleName newName = ast.newSimpleName("x");
                    newNames[j] = newName;
                    rewrite.replace(names[j], newName, null);
                }
                desc.resultingParamName = newNames;
            } else {
                //$NON-NLS-1$  // name will be set later
                SimpleName newName = ast.newSimpleName("x");
                rewrite.replace(decl.getName(), newName, null);
                // remember to set name later
                desc.resultingParamName = new SimpleName[] { newName };
            }
            desc.resultingParamType = newType;
            desc.orginalName = decl.getName().getIdentifier();
            hasCreatedVariables = true;
            k++;
            TagElement tagNode = findParamTag(methodDecl, decl);
            if (tagNode != null) {
                List<? extends ASTNode> fragments = tagNode.fragments();
                if (!fragments.isEmpty()) {
                    //$NON-NLS-1$
                    SimpleName arg = ast.newSimpleName("x");
                    rewrite.replace(fragments.get(0), arg, null);
                    desc.resultingTagArg = arg;
                }
            }
        } else if (curr instanceof SwapDescription) {
            SingleVariableDeclaration decl1 = parameters.get(k);
            SingleVariableDeclaration decl2 = parameters.get(((SwapDescription) curr).index);
            rewrite.replace(decl1, rewrite.createCopyTarget(decl2), null);
            rewrite.replace(decl2, rewrite.createCopyTarget(decl1), null);
            usedNames.add(decl1.getName().getIdentifier());
            k++;
            TagElement tagNode1 = findParamTag(methodDecl, decl1);
            TagElement tagNode2 = findParamTag(methodDecl, decl2);
            if (tagNode1 != null && tagNode2 != null) {
                rewrite.replace(tagNode1, rewrite.createCopyTarget(tagNode2), null);
                rewrite.replace(tagNode2, rewrite.createCopyTarget(tagNode1), null);
            }
        }
    }
    if (!hasCreatedVariables) {
        return;
    }
    if (methodDecl.getBody() != null) {
        // avoid take a name of a local variable inside
        CompilationUnit root = (CompilationUnit) methodDecl.getRoot();
        IBinding[] bindings = (new ScopeAnalyzer(root)).getDeclarationsAfter(methodDecl.getBody().getStartPosition(), ScopeAnalyzer.VARIABLES);
        for (int i = 0; i < bindings.length; i++) {
            usedNames.add(bindings[i].getName());
        }
    }
    fixupNames(rewrite, usedNames);
}