patch 8.2.2660: Vim9: no error for declaration with trailing text Commit: https://github.com/vim/vim/commit/ccc25aa285498d572a735bba5afd22aec9f605f4 Author: Bram Moolenaar <Bram@vim.org> Date: Fri Mar 26 21:27:52 2021 +0100 patch 8.2.2660: Vim9: no error for declaration with trailing text Problem: Vim9: no error for declaration with trailing text. Solution: Give an error. (closes https://github.com/vim/vim/issues/8014)

--- a/src/evalvars.c
+++ b/src/evalvars.c
@@ -789,8 +789,11 @@ ex_let(exarg_T *eap)
 	{
 	    if (vim9script)
 	    {
-		// Vim9 declaration ":var name: type"
-		arg = vim9_declare_scriptvar(eap, arg);
+		if (!ends_excmd2(eap->cmd, skipwhite(argend)))
+		    semsg(_(e_trailing_arg), argend);
+		else
+		    // Vim9 declaration ":var name: type"
+		    arg = vim9_declare_scriptvar(eap, arg);
 	    }
 	    else
 	    {