commit https://github.com/vim/vim/commit/4b6a6dcbe7bd13170c4884cc17acb1eac2c633d1 Author: Bram Moolenaar <Bram@vim.org> Date: Thu Feb 4 22:49:49 2016 +0100 patch 7.4.1261 Problem: Pending channel messages are garbage collected. Leaking memory in ch_sendexpr(). Leaking memory for a decoded JSON string. Solution: Mark the message list as used. Free the encoded JSON. Don't save the JSON string.

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}\")