patch 8.2.2926: Vim9: no good error for using :legacy in a :def function
Problem: Vim9: no good error for using :legacy in a :def function.
Solution: Give an explicit error where :legacy is not working.
(closes #8309)
diff --git a/src/vim9compile.c b/src/vim9compile.c
index 2ea487d..5152b61 100644
--- a/src/vim9compile.c
+++ b/src/vim9compile.c
@@ -9222,6 +9222,27 @@
{
char_u *start = ea.cmd;
+ switch (ea.cmdidx)
+ {
+ case CMD_if:
+ case CMD_elseif:
+ case CMD_else:
+ case CMD_endif:
+ case CMD_for:
+ case CMD_endfor:
+ case CMD_continue:
+ case CMD_break:
+ case CMD_while:
+ case CMD_endwhile:
+ case CMD_try:
+ case CMD_catch:
+ case CMD_finally:
+ case CMD_endtry:
+ semsg(_(e_cannot_use_legacy_with_command_str), ea.cmd);
+ goto erret;
+ default: break;
+ }
+
// ":legacy return expr" needs to be handled differently.
if (checkforcmd(&start, "return", 4))
ea.cmdidx = CMD_return;