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Example 16 with ASTNode

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

the class ReturnTypeSubProcessor method addMissingReturnTypeProposals.

public static void addMissingReturnTypeProposals(IInvocationContext context, IProblemLocation problem, Collection<ICommandAccess> 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) {
        MethodDeclaration methodDeclaration = (MethodDeclaration) decl;
        ReturnStatementCollector eval = new ReturnStatementCollector();
        decl.accept(eval);
        AST ast = astRoot.getAST();
        ITypeBinding typeBinding = eval.getTypeBinding(decl.getAST());
        typeBinding = Bindings.normalizeTypeBinding(typeBinding);
        if (typeBinding == null) {
            //$NON-NLS-1$
            typeBinding = ast.resolveWellKnownType("void");
        }
        if (typeBinding.isWildcardType()) {
            typeBinding = ASTResolving.normalizeWildcardType(typeBinding, true, ast);
        }
        ASTRewrite rewrite = ASTRewrite.create(ast);
        String label = Messages.format(CorrectionMessages.ReturnTypeSubProcessor_missingreturntype_description, BindingLabelProvider.getBindingLabel(typeBinding, BindingLabelProvider.DEFAULT_TEXTFLAGS));
        Image image = JavaPluginImages.get(JavaPluginImages.IMG_CORRECTION_CHANGE);
        LinkedCorrectionProposal proposal = new LinkedCorrectionProposal(label, cu, rewrite, IProposalRelevance.MISSING_RETURN_TYPE, image);
        ImportRewrite imports = proposal.createImportRewrite(astRoot);
        ImportRewriteContext importRewriteContext = new ContextSensitiveImportRewriteContext(decl, imports);
        Type type = imports.addImport(typeBinding, ast, importRewriteContext);
        rewrite.set(methodDeclaration, MethodDeclaration.RETURN_TYPE2_PROPERTY, type, null);
        rewrite.set(methodDeclaration, MethodDeclaration.CONSTRUCTOR_PROPERTY, Boolean.FALSE, null);
        Javadoc javadoc = methodDeclaration.getJavadoc();
        if (javadoc != null && typeBinding != 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");
        }
        //$NON-NLS-1$
        String key = "return_type";
        proposal.addLinkedPosition(rewrite.track(type), true, key);
        if (typeBinding != null) {
            ITypeBinding[] bindings = ASTResolving.getRelaxingTypes(ast, typeBinding);
            for (int i = 0; i < bindings.length; i++) {
                proposal.addLinkedPositionProposal(key, bindings[i]);
            }
        }
        proposals.add(proposal);
        // change to constructor
        ASTNode parentType = ASTResolving.findParentType(decl);
        if (parentType instanceof AbstractTypeDeclaration) {
            boolean isInterface = parentType instanceof TypeDeclaration && ((TypeDeclaration) parentType).isInterface();
            if (!isInterface) {
                String constructorName = ((AbstractTypeDeclaration) parentType).getName().getIdentifier();
                ASTNode nameNode = methodDeclaration.getName();
                label = Messages.format(CorrectionMessages.ReturnTypeSubProcessor_wrongconstructorname_description, BasicElementLabels.getJavaElementName(constructorName));
                proposals.add(new ReplaceCorrectionProposal(label, cu, nameNode.getStartPosition(), nameNode.getLength(), constructorName, IProposalRelevance.CHANGE_TO_CONSTRUCTOR));
            }
        }
    }
}
Also used : ImportRewrite(org.eclipse.jdt.core.dom.rewrite.ImportRewrite) Javadoc(org.eclipse.jdt.core.dom.Javadoc) Image(org.eclipse.swt.graphics.Image) TextElement(org.eclipse.jdt.core.dom.TextElement) ITypeBinding(org.eclipse.jdt.core.dom.ITypeBinding) ASTNode(org.eclipse.jdt.core.dom.ASTNode) ASTRewrite(org.eclipse.jdt.core.dom.rewrite.ASTRewrite) TagElement(org.eclipse.jdt.core.dom.TagElement) ICompilationUnit(org.eclipse.jdt.core.ICompilationUnit) CompilationUnit(org.eclipse.jdt.core.dom.CompilationUnit) ICompilationUnit(org.eclipse.jdt.core.ICompilationUnit) AST(org.eclipse.jdt.core.dom.AST) MethodDeclaration(org.eclipse.jdt.core.dom.MethodDeclaration) ContextSensitiveImportRewriteContext(org.eclipse.jdt.internal.corext.codemanipulation.ContextSensitiveImportRewriteContext) Type(org.eclipse.jdt.core.dom.Type) PrimitiveType(org.eclipse.jdt.core.dom.PrimitiveType) ImportRewriteContext(org.eclipse.jdt.core.dom.rewrite.ImportRewrite.ImportRewriteContext) ContextSensitiveImportRewriteContext(org.eclipse.jdt.internal.corext.codemanipulation.ContextSensitiveImportRewriteContext) LinkedCorrectionProposal(org.eclipse.jdt.internal.ui.text.correction.proposals.LinkedCorrectionProposal) BodyDeclaration(org.eclipse.jdt.core.dom.BodyDeclaration) AnnotationTypeDeclaration(org.eclipse.jdt.core.dom.AnnotationTypeDeclaration) AbstractTypeDeclaration(org.eclipse.jdt.core.dom.AbstractTypeDeclaration) TypeDeclaration(org.eclipse.jdt.core.dom.TypeDeclaration) AbstractTypeDeclaration(org.eclipse.jdt.core.dom.AbstractTypeDeclaration) ReplaceCorrectionProposal(org.eclipse.jdt.internal.ui.text.correction.proposals.ReplaceCorrectionProposal)

Example 17 with ASTNode

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

the class SuppressWarningsSubProcessor method addSuppressWarningsProposals.

public static void addSuppressWarningsProposals(IInvocationContext context, IProblemLocation problem, Collection<ICommandAccess> proposals) {
    if (problem.isError() && !JavaCore.ENABLED.equals(context.getCompilationUnit().getJavaProject().getOption(JavaCore.COMPILER_PB_SUPPRESS_OPTIONAL_ERRORS, true))) {
        return;
    }
    if (JavaCore.DISABLED.equals(context.getCompilationUnit().getJavaProject().getOption(JavaCore.COMPILER_PB_SUPPRESS_WARNINGS, true))) {
        return;
    }
    String warningToken = CorrectionEngine.getWarningToken(problem.getProblemId());
    if (warningToken == null) {
        return;
    }
    for (Iterator<ICommandAccess> iter = proposals.iterator(); iter.hasNext(); ) {
        Object element = iter.next();
        if (element instanceof SuppressWarningsProposal && warningToken.equals(((SuppressWarningsProposal) element).getWarningToken())) {
            // only one at a time
            return;
        }
    }
    ASTNode node = problem.getCoveringNode(context.getASTRoot());
    if (node == null) {
        return;
    }
    ASTNode target = node;
    int relevance = IProposalRelevance.ADD_SUPPRESSWARNINGS;
    do {
        relevance = addSuppressWarningsProposalIfPossible(context.getCompilationUnit(), target, warningToken, relevance, proposals);
        if (relevance == 0)
            return;
        target = target.getParent();
    } while (target != null);
    ASTNode importStatement = ASTNodes.getParent(node, ImportDeclaration.class);
    if (importStatement != null && !context.getASTRoot().types().isEmpty()) {
        target = (ASTNode) context.getASTRoot().types().get(0);
        if (target != null) {
            addSuppressWarningsProposalIfPossible(context.getCompilationUnit(), target, warningToken, IProposalRelevance.ADD_SUPPRESSWARNINGS, proposals);
        }
    }
}
Also used : ICommandAccess(org.eclipse.jdt.ui.text.java.correction.ICommandAccess) ASTNode(org.eclipse.jdt.core.dom.ASTNode)

Example 18 with ASTNode

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

the class SuppressWarningsSubProcessor method addUnknownSuppressWarningProposals.

/**
	 * Adds a proposal to correct the name of the SuppressWarning annotation
	 * @param context the context
	 * @param problem the problem
	 * @param proposals the resulting proposals
	 */
public static void addUnknownSuppressWarningProposals(IInvocationContext context, IProblemLocation problem, Collection<ICommandAccess> proposals) {
    ASTNode coveringNode = context.getCoveringNode();
    if (!(coveringNode instanceof StringLiteral))
        return;
    AST ast = coveringNode.getAST();
    StringLiteral literal = (StringLiteral) coveringNode;
    String literalValue = literal.getLiteralValue();
    String[] allWarningTokens = CorrectionEngine.getAllWarningTokens();
    for (int i = 0; i < allWarningTokens.length; i++) {
        String curr = allWarningTokens[i];
        if (NameMatcher.isSimilarName(literalValue, curr)) {
            StringLiteral newLiteral = ast.newStringLiteral();
            newLiteral.setLiteralValue(curr);
            ASTRewrite rewrite = ASTRewrite.create(ast);
            rewrite.replace(literal, newLiteral, null);
            String label = Messages.format(CorrectionMessages.SuppressWarningsSubProcessor_fix_suppress_token_label, new String[] { curr });
            Image image = JavaPluginImages.get(JavaPluginImages.IMG_CORRECTION_CHANGE);
            ASTRewriteCorrectionProposal proposal = new ASTRewriteCorrectionProposal(label, context.getCompilationUnit(), rewrite, IProposalRelevance.FIX_SUPPRESS_TOKEN, image);
            proposals.add(proposal);
        }
    }
    addRemoveUnusedSuppressWarningProposals(context, problem, proposals);
}
Also used : ASTRewriteCorrectionProposal(org.eclipse.jdt.ui.text.java.correction.ASTRewriteCorrectionProposal) AST(org.eclipse.jdt.core.dom.AST) StringLiteral(org.eclipse.jdt.core.dom.StringLiteral) ASTNode(org.eclipse.jdt.core.dom.ASTNode) ASTRewrite(org.eclipse.jdt.core.dom.rewrite.ASTRewrite) Image(org.eclipse.swt.graphics.Image)

Example 19 with ASTNode

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

the class ExtractToNullCheckedLocalProposal method getRewrite.

@Override
protected ASTRewrite getRewrite() throws CoreException {
    // infrastructure:
    AST ast = this.compilationUnit.getAST();
    ASTRewrite rewrite = ASTRewrite.create(ast);
    ImportRewrite imports = ImportRewrite.create(this.compilationUnit, true);
    TextEditGroup group = new TextEditGroup(FixMessages.ExtractToNullCheckedLocalProposal_extractCheckedLocal_editName);
    LinkedProposalPositionGroup localNameGroup = new LinkedProposalPositionGroup(LOCAL_NAME_POSITION_GROUP);
    getLinkedProposalModel().addPositionGroup(localNameGroup);
    // AST context:
    Statement origStmt = (Statement) ASTNodes.getParent(this.fieldReference, Statement.class);
    // determine suitable strategy for rearranging elements towards a new code structure:
    RearrangeStrategy rearrangeStrategy = RearrangeStrategy.create(origStmt, rewrite, group);
    Expression toReplace;
    ASTNode directParent = this.fieldReference.getParent();
    if (directParent instanceof FieldAccess) {
        toReplace = (Expression) directParent;
    } else if (directParent instanceof QualifiedName && this.fieldReference.getLocationInParent() == QualifiedName.NAME_PROPERTY) {
        toReplace = (Expression) directParent;
    } else {
        toReplace = this.fieldReference;
    }
    // new local declaration initialized from the field reference
    VariableDeclarationFragment localFrag = ast.newVariableDeclarationFragment();
    VariableDeclarationStatement localDecl = ast.newVariableDeclarationStatement(localFrag);
    // ... type
    localDecl.setType(newType(toReplace.resolveTypeBinding(), ast, imports));
    localDecl.modifiers().add(ast.newModifier(Modifier.ModifierKeyword.FINAL_KEYWORD));
    // ... name
    String localName = proposeLocalName(this.fieldReference, this.compilationUnit, getCompilationUnit().getJavaProject());
    localFrag.setName(ast.newSimpleName(localName));
    // ... initialization
    localFrag.setInitializer((Expression) ASTNode.copySubtree(ast, toReplace));
    rearrangeStrategy.insertLocalDecl(localDecl);
    // if statement:
    IfStatement ifStmt = ast.newIfStatement();
    // condition:
    InfixExpression nullCheck = ast.newInfixExpression();
    nullCheck.setLeftOperand(ast.newSimpleName(localName));
    nullCheck.setRightOperand(ast.newNullLiteral());
    nullCheck.setOperator(InfixExpression.Operator.NOT_EQUALS);
    ifStmt.setExpression(nullCheck);
    // then block: the original statement
    Block thenBlock = ast.newBlock();
    thenBlock.statements().add(rearrangeStrategy.createMoveTargetForOrigStmt());
    ifStmt.setThenStatement(thenBlock);
    // ... but with the field reference replaced by the new local:
    SimpleName dereferencedName = ast.newSimpleName(localName);
    rewrite.replace(toReplace, dereferencedName, group);
    // else block: a Todo comment
    Block elseBlock = ast.newBlock();
    //$NON-NLS-1$
    String elseStatement = "// TODO " + FixMessages.ExtractToNullCheckedLocalProposal_todoHandleNullDescription;
    if (origStmt instanceof ReturnStatement) {
        Type returnType = newType(((ReturnStatement) origStmt).getExpression().resolveTypeBinding(), ast, imports);
        ReturnStatement returnStatement = ast.newReturnStatement();
        returnStatement.setExpression(ASTNodeFactory.newDefaultExpression(ast, returnType, 0));
        elseStatement += '\n' + ASTNodes.asFormattedString(returnStatement, 0, String.valueOf('\n'), getCompilationUnit().getJavaProject().getOptions(true));
    }
    EmptyStatement todoNode = (EmptyStatement) rewrite.createStringPlaceholder(elseStatement, ASTNode.EMPTY_STATEMENT);
    elseBlock.statements().add(todoNode);
    ifStmt.setElseStatement(elseBlock);
    // link all three occurrences of the new local variable:
    addLinkedPosition(rewrite.track(localFrag.getName()), true, /*first*/
    LOCAL_NAME_POSITION_GROUP);
    addLinkedPosition(rewrite.track(nullCheck.getLeftOperand()), false, LOCAL_NAME_POSITION_GROUP);
    addLinkedPosition(rewrite.track(dereferencedName), false, LOCAL_NAME_POSITION_GROUP);
    rearrangeStrategy.insertIfStatement(ifStmt, thenBlock);
    return rewrite;
}
Also used : AST(org.eclipse.jdt.core.dom.AST) ImportRewrite(org.eclipse.jdt.core.dom.rewrite.ImportRewrite) Statement(org.eclipse.jdt.core.dom.Statement) IfStatement(org.eclipse.jdt.core.dom.IfStatement) ReturnStatement(org.eclipse.jdt.core.dom.ReturnStatement) EmptyStatement(org.eclipse.jdt.core.dom.EmptyStatement) VariableDeclarationStatement(org.eclipse.jdt.core.dom.VariableDeclarationStatement) QualifiedName(org.eclipse.jdt.core.dom.QualifiedName) SimpleName(org.eclipse.jdt.core.dom.SimpleName) EmptyStatement(org.eclipse.jdt.core.dom.EmptyStatement) IfStatement(org.eclipse.jdt.core.dom.IfStatement) Type(org.eclipse.jdt.core.dom.Type) PrimitiveType(org.eclipse.jdt.core.dom.PrimitiveType) ParameterizedType(org.eclipse.jdt.core.dom.ParameterizedType) Expression(org.eclipse.jdt.core.dom.Expression) InfixExpression(org.eclipse.jdt.core.dom.InfixExpression) VariableDeclarationFragment(org.eclipse.jdt.core.dom.VariableDeclarationFragment) ASTNode(org.eclipse.jdt.core.dom.ASTNode) InfixExpression(org.eclipse.jdt.core.dom.InfixExpression) ReturnStatement(org.eclipse.jdt.core.dom.ReturnStatement) ASTRewrite(org.eclipse.jdt.core.dom.rewrite.ASTRewrite) VariableDeclarationStatement(org.eclipse.jdt.core.dom.VariableDeclarationStatement) Block(org.eclipse.jdt.core.dom.Block) FieldAccess(org.eclipse.jdt.core.dom.FieldAccess) TextEditGroup(org.eclipse.text.edits.TextEditGroup) LinkedProposalPositionGroup(org.eclipse.jdt.internal.corext.fix.LinkedProposalPositionGroup)

Example 20 with ASTNode

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

the class GenerateForLoopAssistProposal method getVariableNameProposals.

/**
	 * Retrieves name proposals for a fresh local variable.
	 * 
	 * @param basename the basename of the proposals
	 * @param excludedName a name that cannot be used for the variable; <code>null</code> if none
	 * @return an array of proposal strings
	 */
private String[] getVariableNameProposals(String basename, String excludedName) {
    ASTNode surroundingBlock = fCurrentNode;
    while ((surroundingBlock = surroundingBlock.getParent()) != null) {
        if (surroundingBlock instanceof Block) {
            break;
        }
    }
    Collection<String> localUsedNames = new ScopeAnalyzer((CompilationUnit) fCurrentExpression.getRoot()).getUsedVariableNames(surroundingBlock.getStartPosition(), surroundingBlock.getLength());
    if (excludedName != null) {
        localUsedNames.add(excludedName);
    }
    String[] names = StubUtility.getLocalNameSuggestions(getCompilationUnit().getJavaProject(), basename, 0, localUsedNames.toArray(new String[localUsedNames.size()]));
    return names;
}
Also used : ICompilationUnit(org.eclipse.jdt.core.ICompilationUnit) CompilationUnit(org.eclipse.jdt.core.dom.CompilationUnit) ASTNode(org.eclipse.jdt.core.dom.ASTNode) Block(org.eclipse.jdt.core.dom.Block) ScopeAnalyzer(org.eclipse.jdt.internal.corext.dom.ScopeAnalyzer)

Aggregations

ASTNode (org.eclipse.jdt.core.dom.ASTNode)710 SimpleName (org.eclipse.jdt.core.dom.SimpleName)151 ICompilationUnit (org.eclipse.jdt.core.ICompilationUnit)148 CompilationUnit (org.eclipse.jdt.core.dom.CompilationUnit)147 MethodDeclaration (org.eclipse.jdt.core.dom.MethodDeclaration)134 ITypeBinding (org.eclipse.jdt.core.dom.ITypeBinding)126 Expression (org.eclipse.jdt.core.dom.Expression)125 ArrayList (java.util.ArrayList)111 ASTRewrite (org.eclipse.jdt.core.dom.rewrite.ASTRewrite)108 AST (org.eclipse.jdt.core.dom.AST)106 Type (org.eclipse.jdt.core.dom.Type)92 Block (org.eclipse.jdt.core.dom.Block)89 ParenthesizedExpression (org.eclipse.jdt.core.dom.ParenthesizedExpression)77 IMethodBinding (org.eclipse.jdt.core.dom.IMethodBinding)73 VariableDeclarationFragment (org.eclipse.jdt.core.dom.VariableDeclarationFragment)67 AbstractTypeDeclaration (org.eclipse.jdt.core.dom.AbstractTypeDeclaration)66 ListRewrite (org.eclipse.jdt.core.dom.rewrite.ListRewrite)65 CastExpression (org.eclipse.jdt.core.dom.CastExpression)64 BodyDeclaration (org.eclipse.jdt.core.dom.BodyDeclaration)62 VariableDeclarationStatement (org.eclipse.jdt.core.dom.VariableDeclarationStatement)60