Jeff King wrote:
> Instead of using the "x = x" hack, let's handle the default
> case in the switch() statement with a die("BUG"). That tells
> the compiler and any readers of the code exactly what the
> function's input assumptions are.
Sounds reasonable.
> We could also convert the flag to an enum, which would
> provide a compile-time check on the function input.
Unfortunately C permits out-of-bounds values for enums.
[...]
> --- a/wt-status.c
> +++ b/wt-status.c
> @@ -264,7 +264,7 @@ static void wt_status_print_change_data(struct wt_status
> *s,
> {
> struct wt_status_change_data *d = it->util;
> const char *c = color(change_type, s);
> - int status = status;
> + int status;
> char *one_name;
> char *two_name;
> const char *one, *two;
> @@ -292,6 +292,9 @@ static void wt_status_print_change_data(struct wt_status
> *s,
> }
> status = d->worktree_status;
> break;
> + default:
> + die("BUG: unhandled change_type %d in
> wt_status_print_change_data",
> + change_type);
Micronit: s/unhandled/invalid/.
Thanks,
Jonathan
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