void (Document document, PsiFile file, int line) { int offset = document.getLineEndOffset(line); if (doTrimComma(document, offset + 1, offset)) return; PsiElement element = file.findElementAt(offset - 1); int forward = getForwardLineNumber(document, element); int backward = getBackwardLineNumber(document, element); if (forward < 0 || backward < 0) return; doTrimComma(document, document.getLineEndOffset(forward) - 1, document.getLineEndOffset(backward)); }