void (Appendable buffer, PsiElement root, boolean showWhitespaces, boolean showRanges, boolean showClassNames, @Nullable PairConsumer<? super PsiElement, ? super Consumer<? super PsiElement>> extra) { ASTNode node = root.getNode(); if (node == null) { psiToBuffer(buffer, root, 0, showWhitespaces, showRanges, showRanges, showClassNames, extra); } else { treeToBuffer(buffer, node, 0, showWhitespaces, showRanges, showRanges, showClassNames, true, extra); } }