commit https://github.com/vim/vim/commit/67c2c058ea34628bd575aac7ddba4cd3b244ed57 Author: Bram Moolenaar <Bram@vim.org> Date: Wed Mar 30 22:03:02 2016 +0200 patch 7.4.1688 Problem: MzScheme does not support partial. Solution: Add minimal partial support. (Ken Takata)

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}\")