Examples with TemplateBuffer org.eclipse.jface.text.templates.TemplateBuffer used on opensource projects

Example 1 with TemplateBuffer

use of org.eclipse.jface.text.templates.TemplateBuffer in project che by eclipse.

the class StubUtility method getMethodComment.

/*
	 * Don't use this method directly, use CodeGeneration.
	 * This method should work with all AST levels.
	 * @see org.eclipse.jdt.ui.CodeGeneration#getMethodComment(ICompilationUnit, String, MethodDeclaration, boolean, String, String[], String)
	 */
public static String getMethodComment(ICompilationUnit cu, String typeName, MethodDeclaration decl, boolean isDeprecated, String targetName, String targetMethodDeclaringTypeName, String[] targetMethodParameterTypeNames, boolean delegate, String lineDelimiter) throws CoreException {
    boolean needsTarget = targetMethodDeclaringTypeName != null && targetMethodParameterTypeNames != null;
    String templateName = CodeTemplateContextType.METHODCOMMENT_ID;
    if (decl.isConstructor()) {
        templateName = CodeTemplateContextType.CONSTRUCTORCOMMENT_ID;
    } else if (needsTarget) {
        if (delegate)
            templateName = CodeTemplateContextType.DELEGATECOMMENT_ID;
        else
            templateName = CodeTemplateContextType.OVERRIDECOMMENT_ID;
    }
    Template template = getCodeTemplate(templateName, cu.getJavaProject());
    if (template == null) {
        return null;
    }
    CodeTemplateContext context = new CodeTemplateContext(template.getContextTypeId(), cu.getJavaProject(), lineDelimiter);
    context.setCompilationUnitVariables(cu);
    context.setVariable(CodeTemplateContextType.ENCLOSING_TYPE, typeName);
    context.setVariable(CodeTemplateContextType.ENCLOSING_METHOD, decl.getName().getIdentifier());
    if (!decl.isConstructor()) {
        context.setVariable(CodeTemplateContextType.RETURN_TYPE, ASTNodes.asString(getReturnType(decl)));
    }
    if (needsTarget) {
        if (delegate)
            context.setVariable(CodeTemplateContextType.SEE_TO_TARGET_TAG, getSeeTag(targetMethodDeclaringTypeName, targetName, targetMethodParameterTypeNames));
        else
            context.setVariable(CodeTemplateContextType.SEE_TO_OVERRIDDEN_TAG, getSeeTag(targetMethodDeclaringTypeName, targetName, targetMethodParameterTypeNames));
    }
    TemplateBuffer buffer;
    try {
        buffer = context.evaluate(template);
    } catch (BadLocationException e) {
        throw new CoreException(Status.CANCEL_STATUS);
    } catch (TemplateException e) {
        throw new CoreException(Status.CANCEL_STATUS);
    }
    if (buffer == null)
        return null;
    String str = buffer.getString();
    if (Strings.containsOnlyWhitespaces(str)) {
        return null;
    }
    // look if Javadoc tags have to be added
    TemplateVariable position = findVariable(buffer, CodeTemplateContextType.TAGS);
    if (position == null) {
        return str;
    }
    IDocument textBuffer = new Document(str);
    List<TypeParameter> typeParams = shouldGenerateMethodTypeParameterTags(cu.getJavaProject()) ? decl.typeParameters() : Collections.emptyList();
    String[] typeParamNames = new String[typeParams.size()];
    for (int i = 0; i < typeParamNames.length; i++) {
        TypeParameter elem = typeParams.get(i);
        typeParamNames[i] = elem.getName().getIdentifier();
    }
    List<SingleVariableDeclaration> params = decl.parameters();
    String[] paramNames = new String[params.size()];
    for (int i = 0; i < paramNames.length; i++) {
        SingleVariableDeclaration elem = params.get(i);
        paramNames[i] = elem.getName().getIdentifier();
    }
    String[] exceptionNames = getExceptionNames(decl);
    String returnType = null;
    if (!decl.isConstructor()) {
        returnType = ASTNodes.asString(getReturnType(decl));
    }
    int[] tagOffsets = position.getOffsets();
    for (int i = tagOffsets.length - 1; i >= 0; i--) {
        // from last to first
        try {
            insertTag(textBuffer, tagOffsets[i], position.getLength(), paramNames, exceptionNames, returnType, typeParamNames, isDeprecated, lineDelimiter);
        } catch (BadLocationException e) {
            throw new CoreException(JavaUIStatus.createError(IStatus.ERROR, e));
        }
    }
    return textBuffer.get();
}

Example 2 with TemplateBuffer

use of org.eclipse.jface.text.templates.TemplateBuffer in project che by eclipse.

the class StubUtility method evaluateTemplate.

private static String evaluateTemplate(CodeTemplateContext context, Template template, String[] fullLineVariables) throws CoreException {
    TemplateBuffer buffer;
    try {
        buffer = context.evaluate(template);
        if (buffer == null)
            return null;
        String str = fixEmptyVariables(buffer, fullLineVariables);
        if (Strings.containsOnlyWhitespaces(str)) {
            return null;
        }
        return str;
    } catch (BadLocationException e) {
        throw new CoreException(Status.CANCEL_STATUS);
    } catch (TemplateException e) {
        throw new CoreException(Status.CANCEL_STATUS);
    }
}

Example 3 with TemplateBuffer

use of org.eclipse.jface.text.templates.TemplateBuffer in project che by eclipse.

the class StubUtility method getTypeComment.

/*
	 * Don't use this method directly, use CodeGeneration.
	 * @see org.eclipse.jdt.ui.CodeGeneration#getTypeComment(ICompilationUnit, String, String[], String)
	 */
public static String getTypeComment(ICompilationUnit cu, String typeQualifiedName, String[] typeParameterNames, String lineDelim) throws CoreException {
    Template template = getCodeTemplate(CodeTemplateContextType.TYPECOMMENT_ID, cu.getJavaProject());
    if (template == null) {
        return null;
    }
    CodeTemplateContext context = new CodeTemplateContext(template.getContextTypeId(), cu.getJavaProject(), lineDelim);
    context.setCompilationUnitVariables(cu);
    context.setVariable(CodeTemplateContextType.ENCLOSING_TYPE, Signature.getQualifier(typeQualifiedName));
    context.setVariable(CodeTemplateContextType.TYPENAME, Signature.getSimpleName(typeQualifiedName));
    TemplateBuffer buffer;
    try {
        buffer = context.evaluate(template);
    } catch (BadLocationException e) {
        throw new CoreException(Status.CANCEL_STATUS);
    } catch (TemplateException e) {
        throw new CoreException(Status.CANCEL_STATUS);
    }
    String str = buffer.getString();
    if (Strings.containsOnlyWhitespaces(str)) {
        return null;
    }
    // look if Javadoc tags have to be added
    TemplateVariable position = findVariable(buffer, CodeTemplateContextType.TAGS);
    if (position == null) {
        return str;
    }
    IDocument document = new Document(str);
    int[] tagOffsets = position.getOffsets();
    for (int i = tagOffsets.length - 1; i >= 0; i--) {
        // from last to first
        try {
            insertTag(document, tagOffsets[i], position.getLength(), EMPTY, EMPTY, null, typeParameterNames, false, lineDelim);
        } catch (BadLocationException e) {
            throw new CoreException(JavaUIStatus.createError(IStatus.ERROR, e));
        }
    }
    return document.get();
}

Example 4 with TemplateBuffer

use of org.eclipse.jface.text.templates.TemplateBuffer in project che by eclipse.

the class TemplateProposal method apply.

/*
     * @see org.eclipse.jface.text.contentassist.ICompletionProposalExtension2#apply(org.eclipse.jface.text.ITextViewer, char, int, int)
     */
public void apply(ITextViewer viewer, char trigger, int stateMask, int offset) {
    IDocument document = viewer.getDocument();
    try {
        fContext.setReadOnly(false);
        int start;
        TemplateBuffer templateBuffer;
        try {
            beginCompoundChange(viewer);
            int oldReplaceOffset = getReplaceOffset();
            try {
                // this may already modify the document (e.g. add imports)
                templateBuffer = fContext.evaluate(fTemplate);
            } catch (TemplateException e1) {
                fSelectedRegion = fRegion;
                return;
            }
            start = getReplaceOffset();
            int shift = start - oldReplaceOffset;
            int end = Math.max(getReplaceEndOffset(), offset + shift);
            // insert template string
            if (end > document.getLength())
                end = offset;
            String templateString = templateBuffer.getString();
            document.replace(start, end - start, templateString);
        } finally {
            endCompoundChange(viewer);
        }
        // translate positions
        LinkedModeModelImpl model = new LinkedModeModelImpl();
        TemplateVariable[] variables = templateBuffer.getVariables();
        MultiVariableGuess guess = fContext instanceof CompilationUnitContext ? ((CompilationUnitContext) fContext).getMultiVariableGuess() : null;
        boolean hasPositions = false;
        for (int i = 0; i != variables.length; i++) {
            TemplateVariable variable = variables[i];
            if (variable.isUnambiguous())
                continue;
            LinkedPositionGroupImpl group = new LinkedPositionGroupImpl();
            int[] offsets = variable.getOffsets();
            int length = variable.getLength();
            LinkedPosition first;
            if (guess != null && variable instanceof MultiVariable) {
                first = new VariablePosition(document, offsets[0] + start, length, guess, (MultiVariable) variable);
                guess.addSlave((VariablePosition) first);
            } else {
                String[] values = variable.getValues();
                ICompletionProposal[] proposals = new ICompletionProposal[values.length];
                for (int j = 0; j < values.length; j++) {
                    //						ensurePositionCategoryInstalled(document, model);
                    Position pos = new Position(offsets[0] + start, length);
                    //						document.addPosition(getCategory(), pos);
                    proposals[j] = new PositionBasedCompletionProposal(values[j], pos, length);
                }
                if (proposals.length > 1)
                    first = new ProposalPosition(document, offsets[0] + start, length, proposals);
                else
                    first = new LinkedPosition(document, offsets[0] + start, length);
            }
            for (int j = 0; j != offsets.length; j++) if (j == 0) {
                if (first instanceof ProposalPosition) {
                    RegionImpl region = new RegionImpl();
                    region.setLength(first.getLength());
                    region.setOffset(first.getOffset());
                    LinkedDataImpl data = new LinkedDataImpl();
                    ICompletionProposal[] choices = ((ProposalPosition) first).getChoices();
                    if (choices != null) {
                        for (ICompletionProposal choice : choices) {
                            data.addValues(choice.getDisplayString());
                        }
                        group.setData(data);
                    }
                    group.addPositions(region);
                } else {
                    RegionImpl region = new RegionImpl();
                    region.setLength(first.getLength());
                    region.setOffset(first.getOffset());
                    group.addPositions(region);
                }
            } else {
                RegionImpl region = new RegionImpl();
                region.setLength(length);
                region.setOffset(offsets[j] + start);
                group.addPositions(region);
            }
            model.addGroups(group);
            hasPositions = true;
        }
        if (hasPositions) {
            model.setEscapePosition(getCaretOffset(templateBuffer) + start);
            this.linkedModeModel = model;
            //				model.forceInstall();
            //				JavaEditor editor= getJavaEditor();
            //				if (editor != null) {
            //					model.addLinkingListener(new EditorHighlightingSynchronizer(editor));
            //				}
            //
            //				LinkedModeUI ui= new EditorLinkedModeUI(model, viewer);
            //				ui.setExitPosition(viewer, getCaretOffset(templateBuffer) + start, 0, Integer.MAX_VALUE);
            //				ui.enter();
            //ui.getSelectedRegion();
            fSelectedRegion = fRegion;
        } else {
            fSelectedRegion = new Region(getCaretOffset(templateBuffer) + start, 0);
        }
    } catch (BadLocationException e) {
        JavaPlugin.log(e);
        //			openErrorDialog(viewer.getTextWidget().getShell(), e);
        fSelectedRegion = fRegion;
    }
}

Example 5 with TemplateBuffer

use of org.eclipse.jface.text.templates.TemplateBuffer in project che by eclipse.

the class JavaContext method evaluate.

/*
	 * @see TemplateContext#evaluate(Template template)
	 */
@Override
public TemplateBuffer evaluate(Template template) throws BadLocationException, TemplateException {
    clear();
    if (!canEvaluate(template))
        throw new TemplateException(JavaTemplateMessages.Context_error_cannot_evaluate);
    TemplateTranslator translator = new TemplateTranslator() {

        @Override
        protected TemplateVariable createVariable(TemplateVariableType type, String name, int[] offsets) {
            //				TemplateVariableResolver resolver= getContextType().getResolver(type.getName());
            //				return resolver.createVariable();
            MultiVariable variable = new JavaVariable(type, name, offsets);
            fVariables.put(name, variable);
            return variable;
        }
    };
    TemplateBuffer buffer = translator.translate(template);
    getContextType().resolve(buffer, this);
    rewriteImports();
    //		IPreferenceStore prefs = JavaPlugin.getDefault().getPreferenceStore();
    //prefs.getBoolean(PreferenceConstants.TEMPLATES_USE_CODEFORMATTER);
    boolean useCodeFormatter = true;
    IJavaProject project = getJavaProject();
    JavaFormatter formatter = new JavaFormatter(TextUtilities.getDefaultLineDelimiter(getDocument()), getIndentation(), useCodeFormatter, project);
    formatter.format(buffer, this);
    clear();
    return buffer;
}