void (@NotNull List<? super FoldingDescriptor> list, @NotNull PsiElement elementToFold, @NotNull Document document, boolean allowOneLiners, @NotNull TextRange range, @NotNull String placeholder, boolean isCollapsedByDefault) { final TextRange fileRange = elementToFold.getContainingFile().getTextRange(); if (range.equals(fileRange)) return; LOG.assertTrue(range.getStartOffset() >= 0 && range.getEndOffset() <= fileRange.getEndOffset()); if (!allowOneLiners) { int startLine = document.getLineNumber(range.getStartOffset()); int endLine = document.getLineNumber(range.getEndOffset() - 1); if (startLine >= endLine || range.getLength() <= 1) { return; } } else if (range.getLength() <= placeholder.length()) { return; } list.add(new FoldingDescriptor(elementToFold.getNode(), range, null, placeholder, isCollapsedByDefault, Collections.emptySet())); }