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ref-filter: use contains_result enum consistently 

Commit cbc60b672 (git tag --contains: avoid stack overflow,
2014-04-24) adapted the -1/0/1 contains status into a
tri-state enum. However, some of the code still used the
numeric values, or assumed that no/yes correspond to C's
boolean true/false.

Let's switch to using the symbolic values everywhere, which
will make it easier to change them.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jeff King 2017-03-09 08:28:48 -05:00 committed by Junio C Hamano
parent 4d4bc41411
commit a0262c51d0
1 changed files with 8 additions and 8 deletions
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16
ref-filter.c
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@ -1513,20 +1513,20 @@ static enum contains_result contains_test(struct commit *candidate,
{
/* was it previously marked as containing a want commit? */
if (candidate->object.flags & TMP_MARK)
return 1;
return CONTAINS_YES;
/* or marked as not possibly containing a want commit? */
if (candidate->object.flags & UNINTERESTING)
return 0;
return CONTAINS_NO;
/* or are we it? */
if (in_commit_list(want, candidate)) {
candidate->object.flags |= TMP_MARK;
return 1;
return CONTAINS_YES;
}
if (parse_commit(candidate) < 0)
return 0;
return CONTAINS_NO;
return -1;
return CONTAINS_UNKNOWN;
}
static void push_to_contains_stack(struct commit *candidate, struct contains_stack *contains_stack)
@ -1540,7 +1540,7 @@ static enum contains_result contains_tag_algo(struct commit *candidate,
const struct commit_list *want)
{
struct contains_stack contains_stack = { 0, 0, NULL };
int result = contains_test(candidate, want);
enum contains_result result = contains_test(candidate, want);
if (result != CONTAINS_UNKNOWN)
return result;
@ -1557,7 +1557,7 @@ static enum contains_result contains_tag_algo(struct commit *candidate,
}
/*
* If we just popped the stack, parents->item has been marked,
* therefore contains_test will return a meaningful 0 or 1.
* therefore contains_test will return a meaningful yes/no.
*/
else switch (contains_test(parents->item, want)) {
case CONTAINS_YES:
@ -1579,7 +1579,7 @@ static enum contains_result contains_tag_algo(struct commit *candidate,
static int commit_contains(struct ref_filter *filter, struct commit *commit)
{
if (filter->with_commit_tag_algo)
return contains_tag_algo(commit, filter->with_commit);
return contains_tag_algo(commit, filter->with_commit) == CONTAINS_YES;
return is_descendant_of(commit, filter->with_commit);
}