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

Example 16 with UnionType

use of org.eclipse.jdt.core.dom.UnionType in project AutoRefactor by JnRouvignac.

the class UseMultiCatchRefactoring method collectAllUnionedTypes.

private void collectAllUnionedTypes(List<Type> results, Collection<Type> types) {
    for (final Type type : types) {
        if (type instanceof UnionType) {
            final UnionType ut = (UnionType) type;
            collectAllUnionedTypes(results, types(ut));
        } else {
            results.add(type);
        }
    }
}

Example 17 with UnionType

use of org.eclipse.jdt.core.dom.UnionType in project AutoRefactor by JnRouvignac.

the class UseMultiCatchRefactoring method visit.

@Override
public boolean visit(TryStatement node) {
    List<CatchClause> catchClauses = catchClauses(node);
    Binding[] typeBindings = resolveTypeBindings(catchClauses);
    for (int i = 0; i < catchClauses.size(); i++) {
        CatchClause catchClause1 = catchClauses.get(i);
        for (int j = i + 1; j < catchClauses.size(); j++) {
            CatchClause catchClause2 = catchClauses.get(j);
            MergeDirection direction = mergeDirection(typeBindings, i, j);
            if (!MergeDirection.NONE.equals(direction) && matchMultiCatch(catchClause1, catchClause2)) {
                Refactorings r = this.ctx.getRefactorings();
                UnionType ut = unionTypes(catchClause1.getException().getType(), catchClause2.getException().getType());
                if (MergeDirection.UP.equals(direction)) {
                    r.set(catchClause1.getException(), SingleVariableDeclaration.TYPE_PROPERTY, ut);
                    r.remove(catchClause2);
                } else if (MergeDirection.DOWN.equals(direction)) {
                    r.remove(catchClause1);
                    r.set(catchClause2.getException(), SingleVariableDeclaration.TYPE_PROPERTY, ut);
                }
                return DO_NOT_VISIT_SUBTREE;
            }
        }
    }
    return VISIT_SUBTREE;
}

Example 18 with UnionType

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

the class LocalCorrectionsSubProcessor method addUncaughtExceptionProposals.

public static void addUncaughtExceptionProposals(IInvocationContext context, IProblemLocation problem, Collection<CUCorrectionProposal> proposals) throws CoreException {
    ICompilationUnit cu = context.getCompilationUnit();
    CompilationUnit astRoot = context.getASTRoot();
    ASTNode selectedNode = problem.getCoveringNode(astRoot);
    if (selectedNode == null) {
        return;
    }
    while (selectedNode != null && !(selectedNode instanceof Statement) && !(selectedNode instanceof VariableDeclarationExpression) && !(selectedNode.getLocationInParent() == LambdaExpression.BODY_PROPERTY) && !(selectedNode instanceof MethodReference)) {
        selectedNode = selectedNode.getParent();
    }
    if (selectedNode == null) {
        return;
    }
    int offset = selectedNode.getStartPosition();
    int length = selectedNode.getLength();
    int selectionEnd = context.getSelectionOffset() + context.getSelectionLength();
    if (selectionEnd > offset + length) {
        // extend the selection if more than one statement is selected (bug 72149)
        length = selectionEnd - offset;
    }
    // Surround with proposals
    SurroundWithTryCatchRefactoring refactoring = SurroundWithTryCatchRefactoring.create(cu, offset, length);
    if (refactoring == null) {
        return;
    }
    refactoring.setLeaveDirty(true);
    if (refactoring.checkActivationBasics(astRoot).isOK()) {
        String label = CorrectionMessages.LocalCorrectionsSubProcessor_surroundwith_trycatch_description;
        RefactoringCorrectionProposal proposal = new RefactoringCorrectionProposal(label, cu, refactoring, IProposalRelevance.SURROUND_WITH_TRY_CATCH);
        proposal.setLinkedProposalModel(refactoring.getLinkedProposalModel());
        proposals.add(proposal);
    }
    if (JavaModelUtil.is17OrHigher(cu.getJavaProject())) {
        refactoring = SurroundWithTryCatchRefactoring.create(cu, offset, length, true);
        if (refactoring == null) {
            return;
        }
        refactoring.setLeaveDirty(true);
        if (refactoring.checkActivationBasics(astRoot).isOK()) {
            String label = CorrectionMessages.LocalCorrectionsSubProcessor_surroundwith_trymulticatch_description;
            RefactoringCorrectionProposal proposal = new RefactoringCorrectionProposal(label, cu, refactoring, IProposalRelevance.SURROUND_WITH_TRY_MULTICATCH);
            proposal.setLinkedProposalModel(refactoring.getLinkedProposalModel());
            proposals.add(proposal);
        }
    }
    // Catch exception
    BodyDeclaration decl = ASTResolving.findParentBodyDeclaration(selectedNode);
    if (decl == null) {
        return;
    }
    ASTNode enclosingNode = SurroundWithAnalyzer.getEnclosingNode(selectedNode);
    if (enclosingNode == null) {
        return;
    }
    ITypeBinding[] uncaughtExceptions = ExceptionAnalyzer.perform(enclosingNode, Selection.createFromStartLength(offset, length));
    if (uncaughtExceptions.length == 0) {
        return;
    }
    TryStatement surroundingTry = ASTResolving.findParentTryStatement(selectedNode);
    AST ast = astRoot.getAST();
    if (surroundingTry != null && (ASTNodes.isParent(selectedNode, surroundingTry.getBody()) || selectedNode.getLocationInParent() == TryStatement.RESOURCES_PROPERTY)) {
        {
            ASTRewrite rewrite = ASTRewrite.create(surroundingTry.getAST());
            String label = CorrectionMessages.LocalCorrectionsSubProcessor_addadditionalcatch_description;
            LinkedCorrectionProposal proposal = new LinkedCorrectionProposal(label, cu, rewrite, IProposalRelevance.ADD_ADDITIONAL_CATCH);
            ImportRewrite imports = proposal.createImportRewrite(context.getASTRoot());
            ImportRewriteContext importRewriteContext = new ContextSensitiveImportRewriteContext(decl, imports);
            CodeScopeBuilder.Scope scope = CodeScopeBuilder.perform(decl, Selection.createFromStartLength(offset, length)).findScope(offset, length);
            scope.setCursor(offset);
            ListRewrite clausesRewrite = rewrite.getListRewrite(surroundingTry, TryStatement.CATCH_CLAUSES_PROPERTY);
            for (int i = 0; i < uncaughtExceptions.length; i++) {
                ITypeBinding excBinding = uncaughtExceptions[i];
                String varName = StubUtility.getExceptionVariableName(cu.getJavaProject());
                String name = scope.createName(varName, false);
                SingleVariableDeclaration var = ast.newSingleVariableDeclaration();
                var.setName(ast.newSimpleName(name));
                var.setType(imports.addImport(excBinding, ast, importRewriteContext, TypeLocation.EXCEPTION));
                CatchClause newClause = ast.newCatchClause();
                newClause.setException(var);
                String catchBody = StubUtility.getCatchBodyContent(cu, excBinding.getName(), name, selectedNode, String.valueOf('\n'));
                if (catchBody != null) {
                    ASTNode node = rewrite.createStringPlaceholder(catchBody, ASTNode.RETURN_STATEMENT);
                    newClause.getBody().statements().add(node);
                }
                clausesRewrite.insertLast(newClause, null);
                // $NON-NLS-1$
                String typeKey = "type" + i;
                // $NON-NLS-1$
                String nameKey = "name" + i;
                proposal.addLinkedPosition(rewrite.track(var.getType()), false, typeKey);
                proposal.addLinkedPosition(rewrite.track(var.getName()), false, nameKey);
                addExceptionTypeLinkProposals(proposal, excBinding, typeKey);
            }
            proposals.add(proposal);
        }
        if (JavaModelUtil.is17OrHigher(cu.getJavaProject())) {
            List<CatchClause> catchClauses = surroundingTry.catchClauses();
            if (catchClauses != null && catchClauses.size() == 1) {
                List<ITypeBinding> filteredExceptions = SurroundWithTryCatchRefactoring.filterSubtypeExceptions(uncaughtExceptions);
                String label = filteredExceptions.size() > 1 ? CorrectionMessages.LocalCorrectionsSubProcessor_addexceptionstoexistingcatch_description : CorrectionMessages.LocalCorrectionsSubProcessor_addexceptiontoexistingcatch_description;
                ASTRewrite rewrite = ASTRewrite.create(ast);
                LinkedCorrectionProposal proposal = new LinkedCorrectionProposal(label, cu, rewrite, IProposalRelevance.ADD_EXCEPTIONS_TO_EXISTING_CATCH);
                ImportRewrite imports = proposal.createImportRewrite(context.getASTRoot());
                ImportRewriteContext importRewriteContext = new ContextSensitiveImportRewriteContext(decl, imports);
                CatchClause catchClause = catchClauses.get(0);
                Type type = catchClause.getException().getType();
                if (type instanceof UnionType) {
                    UnionType unionType = (UnionType) type;
                    ListRewrite listRewrite = rewrite.getListRewrite(unionType, UnionType.TYPES_PROPERTY);
                    for (int i = 0; i < filteredExceptions.size(); i++) {
                        ITypeBinding excBinding = filteredExceptions.get(i);
                        Type type2 = imports.addImport(excBinding, ast, importRewriteContext, TypeLocation.EXCEPTION);
                        listRewrite.insertLast(type2, null);
                        // $NON-NLS-1$
                        String typeKey = "type" + i;
                        proposal.addLinkedPosition(rewrite.track(type2), false, typeKey);
                        addExceptionTypeLinkProposals(proposal, excBinding, typeKey);
                    }
                } else {
                    UnionType newUnionType = ast.newUnionType();
                    List<Type> types = newUnionType.types();
                    types.add((Type) rewrite.createCopyTarget(type));
                    for (int i = 0; i < filteredExceptions.size(); i++) {
                        ITypeBinding excBinding = filteredExceptions.get(i);
                        Type type2 = imports.addImport(excBinding, ast, importRewriteContext, TypeLocation.EXCEPTION);
                        types.add(type2);
                        // $NON-NLS-1$
                        String typeKey = "type" + i;
                        proposal.addLinkedPosition(rewrite.track(type2), false, typeKey);
                        addExceptionTypeLinkProposals(proposal, excBinding, typeKey);
                    }
                    rewrite.replace(type, newUnionType, null);
                }
                proposals.add(proposal);
            } else if (catchClauses != null && catchClauses.size() == 0) {
                List<ITypeBinding> filteredExceptions = SurroundWithTryCatchRefactoring.filterSubtypeExceptions(uncaughtExceptions);
                if (filteredExceptions.size() > 1) {
                    String label = CorrectionMessages.LocalCorrectionsSubProcessor_addadditionalmulticatch_description;
                    ASTRewrite rewrite = ASTRewrite.create(ast);
                    LinkedCorrectionProposal proposal = new LinkedCorrectionProposal(label, cu, rewrite, IProposalRelevance.ADD_ADDITIONAL_MULTI_CATCH);
                    ImportRewrite imports = proposal.createImportRewrite(context.getASTRoot());
                    ImportRewriteContext importRewriteContext = new ContextSensitiveImportRewriteContext(decl, imports);
                    CodeScopeBuilder.Scope scope = CodeScopeBuilder.perform(decl, Selection.createFromStartLength(offset, length)).findScope(offset, length);
                    scope.setCursor(offset);
                    CatchClause newCatchClause = ast.newCatchClause();
                    String varName = StubUtility.getExceptionVariableName(cu.getJavaProject());
                    String name = scope.createName(varName, false);
                    SingleVariableDeclaration var = ast.newSingleVariableDeclaration();
                    var.setName(ast.newSimpleName(name));
                    UnionType newUnionType = ast.newUnionType();
                    List<Type> types = newUnionType.types();
                    for (int i = 0; i < filteredExceptions.size(); i++) {
                        ITypeBinding excBinding = filteredExceptions.get(i);
                        Type type2 = imports.addImport(excBinding, ast, importRewriteContext, TypeLocation.EXCEPTION);
                        types.add(type2);
                        // $NON-NLS-1$
                        String typeKey = "type" + i;
                        proposal.addLinkedPosition(rewrite.track(type2), false, typeKey);
                        addExceptionTypeLinkProposals(proposal, excBinding, typeKey);
                    }
                    // $NON-NLS-1$
                    String nameKey = "name";
                    proposal.addLinkedPosition(rewrite.track(var.getName()), false, nameKey);
                    var.setType(newUnionType);
                    newCatchClause.setException(var);
                    // $NON-NLS-1$
                    String catchBody = StubUtility.getCatchBodyContent(cu, "Exception", name, selectedNode, String.valueOf('\n'));
                    if (catchBody != null) {
                        ASTNode node = rewrite.createStringPlaceholder(catchBody, ASTNode.RETURN_STATEMENT);
                        newCatchClause.getBody().statements().add(node);
                    }
                    ListRewrite listRewrite = rewrite.getListRewrite(surroundingTry, TryStatement.CATCH_CLAUSES_PROPERTY);
                    listRewrite.insertFirst(newCatchClause, null);
                    proposals.add(proposal);
                }
            }
        }
    }
    // Add throws declaration
    if (enclosingNode instanceof MethodDeclaration) {
        MethodDeclaration methodDecl = (MethodDeclaration) enclosingNode;
        IMethodBinding binding = methodDecl.resolveBinding();
        boolean isApplicable = (binding != null);
        if (isApplicable) {
            IMethodBinding overriddenMethod = Bindings.findOverriddenMethod(binding, true);
            if (overriddenMethod != null) {
                isApplicable = overriddenMethod.getDeclaringClass().isFromSource();
                if (!isApplicable) {
                    // bug 349051
                    ITypeBinding[] exceptionTypes = overriddenMethod.getExceptionTypes();
                    ArrayList<ITypeBinding> unhandledExceptions = new ArrayList<>(uncaughtExceptions.length);
                    for (int i = 0; i < uncaughtExceptions.length; i++) {
                        ITypeBinding curr = uncaughtExceptions[i];
                        if (isSubtype(curr, exceptionTypes)) {
                            unhandledExceptions.add(curr);
                        }
                    }
                    uncaughtExceptions = unhandledExceptions.toArray(new ITypeBinding[unhandledExceptions.size()]);
                    isApplicable |= uncaughtExceptions.length > 0;
                }
            }
        }
        if (isApplicable) {
            ITypeBinding[] methodExceptions = binding.getExceptionTypes();
            ArrayList<ITypeBinding> unhandledExceptions = new ArrayList<>(uncaughtExceptions.length);
            for (int i = 0; i < uncaughtExceptions.length; i++) {
                ITypeBinding curr = uncaughtExceptions[i];
                if (!isSubtype(curr, methodExceptions)) {
                    unhandledExceptions.add(curr);
                }
            }
            uncaughtExceptions = unhandledExceptions.toArray(new ITypeBinding[unhandledExceptions.size()]);
            List<Type> exceptions = methodDecl.thrownExceptionTypes();
            int nExistingExceptions = exceptions.size();
            ChangeDescription[] desc = new ChangeDescription[nExistingExceptions + uncaughtExceptions.length];
            for (int i = 0; i < exceptions.size(); i++) {
                Type elem = exceptions.get(i);
                if (isSubtype(elem.resolveBinding(), uncaughtExceptions)) {
                    desc[i] = new RemoveDescription();
                }
            }
            for (int i = 0; i < uncaughtExceptions.length; i++) {
                // $NON-NLS-1$
                desc[i + nExistingExceptions] = new InsertDescription(uncaughtExceptions[i], "");
            }
            String label = CorrectionMessages.LocalCorrectionsSubProcessor_addthrows_description;
            ChangeMethodSignatureProposal proposal = new ChangeMethodSignatureProposal(label, cu, astRoot, binding, null, desc, IProposalRelevance.ADD_THROWS_DECLARATION);
            for (int i = 0; i < uncaughtExceptions.length; i++) {
                addExceptionTypeLinkProposals(proposal, uncaughtExceptions[i], proposal.getExceptionTypeGroupId(i + nExistingExceptions));
            }
            proposals.add(proposal);
        }
    }
}

Example 19 with UnionType

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

the class ASTNodes method getTopMostType.

/**
 * Returns the topmost ancestor of <code>node</code> that is a {@link Type} (but not a {@link UnionType}).
 * <p>
 * <b>Note:</b> The returned node often resolves to a different binding than the given <code>node</code>!
 *
 * @param node the starting node, can be <code>null</code>
 * @return the topmost type or <code>null</code> if the node is not a descendant of a type node
 * @see #getNormalizedNode(ASTNode)
 */
public static Type getTopMostType(ASTNode node) {
    ASTNode result = null;
    while (node instanceof Type && !(node instanceof UnionType) || node instanceof Name || node instanceof Annotation || node instanceof MemberValuePair || node instanceof Expression) {
        // Expression could maybe be reduced to expression node types that can appear in an annotation
        result = node;
        node = node.getParent();
    }
    if (result instanceof Type)
        return (Type) result;
    return null;
}

Example 20 with UnionType

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

the class QuickAssistProcessor method removeException.

private static void removeException(ASTRewrite rewrite, UnionType unionType, Type exception) {
    ListRewrite listRewrite = rewrite.getListRewrite(unionType, UnionType.TYPES_PROPERTY);
    List<Type> types = unionType.types();
    for (Iterator<Type> iterator = types.iterator(); iterator.hasNext(); ) {
        Type type = iterator.next();
        if (type.equals(exception)) {
            listRewrite.remove(type, null);
        }
    }
}