patch 8.1.1828: not strict enough checking syntax of method invocation commit https://github.com/vim/vim/commit/5184132ec015f5889a3195d911e609d214f06bed Author: Bram Moolenaar <Bram@vim.org> Date: Thu Aug 8 21:10:01 2019 +0200 patch 8.1.1828: not strict enough checking syntax of method invocation Problem: Not strict enough checking syntax of method invocation. Solution: Check there is no white space inside ->method(.

--- a/src/eval.c
+++ b/src/eval.c
@@ -4862,6 +4862,12 @@ eval_method(
 		semsg(_(e_missingparen), name);
 	    ret = FAIL;
 	}
+	else if (VIM_ISWHITE((*arg)[-1]))
+	{
+	    if (verbose)
+		semsg(_("E274: No white space allowed before parenthesis"));
+	    ret = FAIL;
+	}
 	else
 	    ret = eval_func(arg, name, len, rettv, evaluate, &base);
     }