xdiff: use BUG(...), not xdl_bug(...)

The xdl_bug() function was introduced in
e8adf23d1e (xdl_change_compact(): introduce the concept of a change
group, 2016-08-22), let's use our usual BUG() function instead.

We'll now have meaningful line numbers if we encounter bugs in xdiff,
and less code duplication.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Ævar Arnfjörð Bjarmason 2021-06-07 18:43:49 +02:00 committed by Junio C Hamano
parent 48bf2fa8ba
commit 546096a5cb

View File

@ -796,12 +796,6 @@ static int group_slide_up(xdfile_t *xdf, struct xdlgroup *g, long flags)
}
}
static void xdl_bug(const char *msg)
{
fprintf(stderr, "BUG: %s\n", msg);
exit(1);
}
/*
* Move back and forward change groups for a consistent and pretty diff output.
* This also helps in finding joinable change groups and reducing the diff
@ -841,7 +835,7 @@ int xdl_change_compact(xdfile_t *xdf, xdfile_t *xdfo, long flags) {
/* Shift the group backward as much as possible: */
while (!group_slide_up(xdf, &g, flags))
if (group_previous(xdfo, &go))
xdl_bug("group sync broken sliding up");
BUG("group sync broken sliding up");
/*
* This is this highest that this group can be shifted.
@ -857,7 +851,7 @@ int xdl_change_compact(xdfile_t *xdf, xdfile_t *xdfo, long flags) {
if (group_slide_down(xdf, &g, flags))
break;
if (group_next(xdfo, &go))
xdl_bug("group sync broken sliding down");
BUG("group sync broken sliding down");
if (go.end > go.start)
end_matching_other = g.end;
@ -882,9 +876,9 @@ int xdl_change_compact(xdfile_t *xdf, xdfile_t *xdfo, long flags) {
*/
while (go.end == go.start) {
if (group_slide_up(xdf, &g, flags))
xdl_bug("match disappeared");
BUG("match disappeared");
if (group_previous(xdfo, &go))
xdl_bug("group sync broken sliding to match");
BUG("group sync broken sliding to match");
}
} else if (flags & XDF_INDENT_HEURISTIC) {
/*
@ -925,9 +919,9 @@ int xdl_change_compact(xdfile_t *xdf, xdfile_t *xdfo, long flags) {
while (g.end > best_shift) {
if (group_slide_up(xdf, &g, flags))
xdl_bug("best shift unreached");
BUG("best shift unreached");
if (group_previous(xdfo, &go))
xdl_bug("group sync broken sliding to blank line");
BUG("group sync broken sliding to blank line");
}
}
@ -936,11 +930,11 @@ int xdl_change_compact(xdfile_t *xdf, xdfile_t *xdfo, long flags) {
if (group_next(xdf, &g))
break;
if (group_next(xdfo, &go))
xdl_bug("group sync broken moving to next group");
BUG("group sync broken moving to next group");
}
if (!group_next(xdfo, &go))
xdl_bug("group sync broken at end of file");
BUG("group sync broken at end of file");
return 0;
}