Examples with IBuffer org.eclipse.jdt.core.IBuffer used on opensource projects

Example 11 with IBuffer

use of org.eclipse.jdt.core.IBuffer in project che by eclipse.

the class StringFix method createCleanUp.

private static ICleanUpFix createCleanUp(CompilationUnit compilationUnit, boolean addNLSTag, boolean removeNLSTag, IProblemLocation[] problems) throws CoreException, JavaModelException {
    ICompilationUnit cu = (ICompilationUnit) compilationUnit.getJavaElement();
    if (!cu.isStructureKnown())
        //[clean up] 'Remove unnecessary $NLS-TAGS$' removes necessary ones in case of syntax errors: https://bugs.eclipse.org/bugs/show_bug.cgi?id=285814 : 
        return null;
    List<CategorizedTextEditGroup> result = new ArrayList<CategorizedTextEditGroup>();
    List<IProblemLocation> missingNLSProblems = new ArrayList<IProblemLocation>();
    for (int i = 0; i < problems.length; i++) {
        IProblemLocation problem = problems[i];
        if (addNLSTag && problem.getProblemId() == IProblem.NonExternalizedStringLiteral) {
            missingNLSProblems.add(problem);
        }
        if (removeNLSTag && problem.getProblemId() == IProblem.UnnecessaryNLSTag) {
            IBuffer buffer = cu.getBuffer();
            if (buffer != null) {
                TextEdit edit = StringFix.getReplace(problem.getOffset(), problem.getLength(), buffer, false);
                if (edit != null) {
                    String label = FixMessages.StringFix_RemoveNonNls_description;
                    result.add(new CategorizedTextEditGroup(label, edit, new GroupCategorySet(new GroupCategory(label, label, label))));
                }
            }
        }
    }
    if (!missingNLSProblems.isEmpty()) {
        int[] positions = new int[missingNLSProblems.size()];
        int i = 0;
        for (Iterator<IProblemLocation> iter = missingNLSProblems.iterator(); iter.hasNext(); ) {
            IProblemLocation problem = iter.next();
            positions[i] = problem.getOffset();
            i++;
        }
        //TODO nls
        //NLSUtil.createNLSEdits(cu, positions);
        TextEdit[] edits = null;
        if (edits != null) {
            for (int j = 0; j < edits.length; j++) {
                String label = FixMessages.StringFix_AddNonNls_description;
                result.add(new CategorizedTextEditGroup(label, edits[j], new GroupCategorySet(new GroupCategory(label, label, label))));
            }
        }
    }
    if (result.isEmpty())
        return null;
    //$NON-NLS-1$
    return new StringFix("", compilationUnit, result.toArray(new TextEditGroup[result.size()]));
}

Example 12 with IBuffer

use of org.eclipse.jdt.core.IBuffer in project che by eclipse.

the class QuickAssistProcessor method getConvertToMultiCatchProposals.

private static boolean getConvertToMultiCatchProposals(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;
    TryStatement tryStatement = (TryStatement) catchClause.getParent();
    List<CatchClause> catchClauses = tryStatement.catchClauses();
    if (catchClauses.size() <= 1)
        return false;
    String commonSource = null;
    try {
        IBuffer buffer = context.getCompilationUnit().getBuffer();
        for (Iterator<CatchClause> iterator = catchClauses.iterator(); iterator.hasNext(); ) {
            CatchClause catchClause1 = iterator.next();
            Block body = catchClause1.getBody();
            String source = buffer.getText(body.getStartPosition(), body.getLength());
            if (commonSource == null) {
                commonSource = source;
            } else {
                if (!commonSource.equals(source))
                    return false;
            }
        }
    } catch (JavaModelException e) {
        return false;
    }
    if (resultingCollections == null)
        return true;
    AST ast = covering.getAST();
    ASTRewrite rewrite = ASTRewrite.create(ast);
    TightSourceRangeComputer sourceRangeComputer = new TightSourceRangeComputer();
    sourceRangeComputer.addTightSourceNode(catchClauses.get(catchClauses.size() - 1));
    rewrite.setTargetSourceRangeComputer(sourceRangeComputer);
    CatchClause firstCatchClause = catchClauses.get(0);
    UnionType newUnionType = ast.newUnionType();
    List<Type> types = newUnionType.types();
    for (Iterator<CatchClause> iterator = catchClauses.iterator(); iterator.hasNext(); ) {
        CatchClause catchClause1 = iterator.next();
        Type type = catchClause1.getException().getType();
        if (type instanceof UnionType) {
            List<Type> types2 = ((UnionType) type).types();
            for (Iterator<Type> iterator2 = types2.iterator(); iterator2.hasNext(); ) {
                types.add((Type) rewrite.createCopyTarget(iterator2.next()));
            }
        } else {
            types.add((Type) rewrite.createCopyTarget(type));
        }
    }
    SingleVariableDeclaration newExceptionDeclaration = ast.newSingleVariableDeclaration();
    newExceptionDeclaration.setType(newUnionType);
    newExceptionDeclaration.setName((SimpleName) rewrite.createCopyTarget(firstCatchClause.getException().getName()));
    rewrite.replace(firstCatchClause.getException(), newExceptionDeclaration, null);
    for (int i = 1; i < catchClauses.size(); i++) {
        rewrite.remove(catchClauses.get(i), null);
    }
    Image image = JavaPluginImages.get(JavaPluginImages.IMG_CORRECTION_CHANGE);
    String label = CorrectionMessages.QuickAssistProcessor_convert_to_single_multicatch_block;
    ASTRewriteCorrectionProposal proposal = new ASTRewriteCorrectionProposal(label, context.getCompilationUnit(), rewrite, IProposalRelevance.COMBINE_CATCH_BLOCKS, image);
    resultingCollections.add(proposal);
    return true;
}

Example 13 with IBuffer

use of org.eclipse.jdt.core.IBuffer in project che by eclipse.

the class JavadocContentAccess method internalGetContentReader.

/**
     * Gets a reader for an IMember's Javadoc comment content from the source attachment.
     * The content does contain only the text from the comment without the Javadoc leading star characters.
     * Returns <code>null</code> if the member does not contain a Javadoc comment or if no source is available.
     *
     * @param member
     *         The member to get the Javadoc of.
     * @return Returns a reader for the Javadoc comment content or <code>null</code> if the member
     * does not contain a Javadoc comment or if no source is available
     * @throws org.eclipse.jdt.core.JavaModelException
     *         is thrown when the elements javadoc can not be accessed
     * @since 3.4
     */
private static Reader internalGetContentReader(IMember member) throws JavaModelException {
    IBuffer buf = member.getOpenable().getBuffer();
    if (buf == null) {
        // no source attachment found
        return null;
    }
    ISourceRange javadocRange = member.getJavadocRange();
    if (javadocRange != null) {
        JavaDocCommentReader reader = new JavaDocCommentReader(buf, javadocRange.getOffset(), javadocRange.getOffset() + javadocRange.getLength() - 1);
        if (!containsOnlyInheritDoc(reader, javadocRange.getLength())) {
            reader.reset();
            return reader;
        }
    }
    return null;
}

Example 14 with IBuffer

use of org.eclipse.jdt.core.IBuffer in project che by eclipse.

the class CodeAssist method computeAssistProposals.

@SuppressWarnings("unchecked")
public Proposals computeAssistProposals(IJavaProject project, String fqn, int offset, List<Problem> problems) throws CoreException {
    ICompilationUnit compilationUnit;
    IType type = project.findType(fqn);
    if (type == null) {
        return null;
    }
    if (type.isBinary()) {
        throw new JavaModelException(new JavaModelStatus(IJavaModelStatusConstants.CORE_EXCEPTION, "Can't calculate Quick Assist on binary file"));
    } else {
        compilationUnit = type.getCompilationUnit();
    }
    IBuffer buffer = compilationUnit.getBuffer();
    ITextFileBufferManager bufferManager = FileBuffers.getTextFileBufferManager();
    bufferManager.connect(compilationUnit.getPath(), LocationKind.IFILE, new NullProgressMonitor());
    ITextFileBuffer textFileBuffer = bufferManager.getTextFileBuffer(compilationUnit.getPath(), LocationKind.IFILE);
    IDocument document = textFileBuffer.getDocument();
    TextViewer viewer = new TextViewer(document, new Point(offset, 0));
    AssistContext context = new AssistContext(compilationUnit, offset, 0);
    ArrayList proposals = new ArrayList<>();
    JavaCorrectionProcessor.collectProposals(context, problems, true, true, proposals);
    return convertProposals(offset, compilationUnit, viewer, proposals);
}

Example 15 with IBuffer

use of org.eclipse.jdt.core.IBuffer in project che by eclipse.

the class CodeAssist method computeProposals.

public Proposals computeProposals(IJavaProject project, String fqn, int offset, final String content) throws JavaModelException {
    WorkingCopyOwner copyOwner = new WorkingCopyOwner() {

        @Override
        public IBuffer createBuffer(ICompilationUnit workingCopy) {
            return new org.eclipse.jdt.internal.ui.javaeditor.DocumentAdapter(workingCopy, workingCopy.getPath(), content);
        }
    };
    ICompilationUnit compilationUnit;
    IType type = project.findType(fqn);
    if (type == null) {
        return null;
    }
    if (type.isBinary()) {
        compilationUnit = type.getClassFile().getWorkingCopy(copyOwner, null);
    } else {
        compilationUnit = type.getCompilationUnit().getWorkingCopy(copyOwner, null);
    }
    IBuffer buffer = compilationUnit.getBuffer();
    IDocument document;
    if (buffer instanceof org.eclipse.jdt.internal.ui.javaeditor.DocumentAdapter) {
        document = ((org.eclipse.jdt.internal.ui.javaeditor.DocumentAdapter) buffer).getDocument();
    } else {
        document = new DocumentAdapter(buffer);
    }
    TextViewer viewer = new TextViewer(document, new Point(offset, 0));
    JavaContentAssistInvocationContext context = new JavaContentAssistInvocationContext(viewer, offset, compilationUnit);
    List<ICompletionProposal> proposals = new ArrayList<>();
    proposals.addAll(new JavaAllCompletionProposalComputer().computeCompletionProposals(context, null));
    proposals.addAll(new TemplateCompletionProposalComputer().computeCompletionProposals(context, null));
    Collections.sort(proposals, new RelevanceSorter());
    return convertProposals(offset, compilationUnit, viewer, proposals);
}