public ASTNode processRange(final ASTNode element, final int startOffset, final int endOffset) { final PsiElement psiElement = SourceTreeToPsiMap.treeElementToPsi(element); assert psiElement != null; final PsiFile file = psiElement.getContainingFile(); final Document document = file.getViewProvider().getDocument(); final RangeMarker rangeMarker = document != null && endOffset < document.getTextLength() ? document.createRangeMarker(startOffset, endOffset) : null; PsiElement elementToFormat = document instanceof DocumentWindow ? InjectedLanguageManager.getInstance(file.getProject()).getTopLevelFile(file) : psiElement; final PsiFile fileToFormat = elementToFormat.getContainingFile(); final FormattingModelBuilder builder = LanguageFormatting.INSTANCE.forContext(fileToFormat); if (builder != null) { TextRange range = preprocess(element, TextRange.create(startOffset, endOffset)); if (document instanceof DocumentWindow) { DocumentWindow documentWindow = (DocumentWindow) document; range = documentWindow.injectedToHost(range); } // final SmartPsiElementPointer pointer = // SmartPointerManager.getInstance(psiElement.getProject()).createSmartPsiElementPointer(psiElement); final FormattingModel model = CoreFormatterUtil.buildModel( builder, elementToFormat, mySettings, FormattingMode.REFORMAT); if (file.getTextLength() > 0) { try { FormatterEx.getInstanceEx() .format( model, mySettings, mySettings.getIndentOptions(fileToFormat.getFileType()), new FormatTextRanges(range, true)); wrapLongLinesIfNecessary(file, document, startOffset, endOffset); } catch (IncorrectOperationException e) { LOG.error(e); } } if (!psiElement.isValid()) { if (rangeMarker != null) { final PsiElement at = file.findElementAt(rangeMarker.getStartOffset()); final PsiElement result = PsiTreeUtil.getParentOfType(at, psiElement.getClass(), false); assert result != null; rangeMarker.dispose(); return result.getNode(); } else { assert false; } } // return SourceTreeToPsiMap.psiElementToTree(pointer.getElement()); } if (rangeMarker != null) { rangeMarker.dispose(); } return element; }