commit https://github.com/vim/vim/commit/5850a764eae74a4dae7238e4e76b4c24f062699b Author: Bram Moolenaar <Bram@vim.org> Date: Fri May 27 19:59:48 2016 +0200 patch 7.4.1849 Problem: Still trying to read from channel that is going to be closed. (Ramel Eshed) Solution: Check if ch_to_be_closed is set.

TYPEMAP
VIWIN	T_VIOBJNOMUNGE
VIBUF	T_VIOBJNOMUNGE

INPUT
T_VIOBJNOMUNGE
	if (sv_isa($arg, \"${ntype}\")) {
	    IV tmp = SvIV((SV*)SvRV($arg));
	    $var = INT2PTR($type, tmp);
	    if (!tmp)
		croak(\"$ntype no longer exists\");
	}
	else
	    croak(\"$var is not of type ${ntype}\")