TreeElement (TreeElement first, ASTNode last, @Nullable ASTNode anchor, @Nullable Boolean before) { if (anchor == null) { if (before == null || before.booleanValue()) { anchor = findChildByType(JavaTokenType.RPARENTH); before = Boolean.TRUE; } else { anchor = findChildByType(JavaTokenType.LPARENTH); before = Boolean.FALSE; } } TreeElement firstAdded = super.addInternal(first, last, anchor, before); if (first == last && PRIMARY_PATTERN_SET.contains(first.getElementType())) { JavaSourceUtil.addSeparatingComma(this, first, PRIMARY_PATTERN_SET); } return firstAdded; }