commit b0745b221d284e381f1bd4b591cd68ea54b6a51d
author Bram Moolenaar <Bram@vim.org> Sat Nov 09 22:28:11 2019 +0100
committer Bram Moolenaar <Bram@vim.org> Sat Nov 09 22:28:11 2019 +0100
tree 7dcb9c03cfc28c3c84359d9f04ec2d41d1173f2c
parent dbd4316806389e3c2240b48cc6c4d209cb1665fd

patch 8.1.2280: crash when passing partial to substitute()

Problem:    Crash when passing partial to substitute().
Solution:   Take extra arguments into account. (closes #5186)

src/userfunc.c

diff --git a/src/userfunc.c b/src/userfunc.c
index 40eb144..cfc52be 100644
--- a/src/userfunc.c
+++ b/src/userfunc.c
@@ -1588,7 +1588,8 @@
 	    else if (fp != NULL)
 	    {
 		if (funcexe->argv_func != NULL)
-		    argcount = funcexe->argv_func(argcount, argvars,
+		    // postponed filling in the arguments, do it now
+		    argcount = funcexe->argv_func(argcount, argvars, argv_clear,
 							   fp->uf_args.ga_len);
 
 		if (funcexe->basetv != NULL)