[RFC PATCH 2/3] refs API: rename "abort" callback to avoid macro clash

["Ævar Arnfjörð Bjarmason" <avarab@gmail.com>]

In a subsequent commit we'll add an abort() macro to wrap the abort(3)
function, unfortunately due to C syntax semantics having such a macro
would be a compilation error as long as we're invoking callbacks named
"abort()".

So let's rename the callback "abort" callback added in
3bc581b9406 (refs: introduce an iterator interface, 2016-06-18) to
"end", which is the alternate naming that commit itself discusses,
i.e. it says:

    * ref_iterator_advance(): move to the next reference in the iteration
    * ref_iterator_abort(): end the iteration before it is exhausted
    * ref_iterator_peel(): peel the reference currently being looked at

Just as "peel=peel we can change that "abort=end" pair to be
"end=end", let's leave "advance=move".

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
---
 refs/debug.c          | 4 ++--
 refs/files-backend.c  | 4 ++--
 refs/iterator.c       | 8 ++++----
 refs/packed-backend.c | 2 +-
 refs/ref-cache.c      | 2 +-
 refs/refs-internal.h  | 2 +-
 6 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/refs/debug.c b/refs/debug.c
index eed8bc94b04..3364a7fb261 100644
--- a/refs/debug.c
+++ b/refs/debug.c
@@ -214,7 +214,7 @@ static int debug_ref_iterator_abort(struct ref_iterator *ref_iterator)
 {
 	struct debug_ref_iterator *diter =
 		(struct debug_ref_iterator *)ref_iterator;
-	int res = diter->iter->vtable->abort(diter->iter);
+	int res = diter->iter->vtable->end(diter->iter);
 	trace_printf_key(&trace_refs, "iterator_abort: %d\n", res);
 	return res;
 }
@@ -222,7 +222,7 @@ static int debug_ref_iterator_abort(struct ref_iterator *ref_iterator)
 static struct ref_iterator_vtable debug_ref_iterator_vtable = {
 	.advance = debug_ref_iterator_advance,
 	.peel = debug_ref_iterator_peel,
-	.abort = debug_ref_iterator_abort,
+	.end = debug_ref_iterator_abort,
 };
 
 static struct ref_iterator *
diff --git a/refs/files-backend.c b/refs/files-backend.c
index 8db7882aacb..3f0dde4ae10 100644
--- a/refs/files-backend.c
+++ b/refs/files-backend.c
@@ -824,7 +824,7 @@ static int files_ref_iterator_abort(struct ref_iterator *ref_iterator)
 static struct ref_iterator_vtable files_ref_iterator_vtable = {
 	.advance = files_ref_iterator_advance,
 	.peel = files_ref_iterator_peel,
-	.abort = files_ref_iterator_abort,
+	.end = files_ref_iterator_abort,
 };
 
 static struct ref_iterator *files_ref_iterator_begin(
@@ -2224,7 +2224,7 @@ static int files_reflog_iterator_abort(struct ref_iterator *ref_iterator)
 static struct ref_iterator_vtable files_reflog_iterator_vtable = {
 	.advance = files_reflog_iterator_advance,
 	.peel = files_reflog_iterator_peel,
-	.abort = files_reflog_iterator_abort,
+	.end = files_reflog_iterator_abort,
 };
 
 static struct ref_iterator *reflog_iterator_begin(struct ref_store *ref_store,
diff --git a/refs/iterator.c b/refs/iterator.c
index b2e56bae1c6..f4a9546adb6 100644
--- a/refs/iterator.c
+++ b/refs/iterator.c
@@ -21,7 +21,7 @@ int ref_iterator_peel(struct ref_iterator *ref_iterator,
 
 int ref_iterator_abort(struct ref_iterator *ref_iterator)
 {
-	return ref_iterator->vtable->abort(ref_iterator);
+	return ref_iterator->vtable->end(ref_iterator);
 }
 
 void base_ref_iterator_init(struct ref_iterator *iter,
@@ -66,7 +66,7 @@ static int empty_ref_iterator_abort(struct ref_iterator *ref_iterator)
 static struct ref_iterator_vtable empty_ref_iterator_vtable = {
 	.advance = empty_ref_iterator_advance,
 	.peel = empty_ref_iterator_peel,
-	.abort = empty_ref_iterator_abort,
+	.end = empty_ref_iterator_abort,
 };
 
 struct ref_iterator *empty_ref_iterator_begin(void)
@@ -203,7 +203,7 @@ static int merge_ref_iterator_abort(struct ref_iterator *ref_iterator)
 static struct ref_iterator_vtable merge_ref_iterator_vtable = {
 	.advance = merge_ref_iterator_advance,
 	.peel = merge_ref_iterator_peel,
-	.abort = merge_ref_iterator_abort,
+	.end = merge_ref_iterator_abort,
 };
 
 struct ref_iterator *merge_ref_iterator_begin(
@@ -380,7 +380,7 @@ static int prefix_ref_iterator_abort(struct ref_iterator *ref_iterator)
 static struct ref_iterator_vtable prefix_ref_iterator_vtable = {
 	.advance = prefix_ref_iterator_advance,
 	.peel = prefix_ref_iterator_peel,
-	.abort = prefix_ref_iterator_abort,
+	.end = prefix_ref_iterator_abort,
 };
 
 struct ref_iterator *prefix_ref_iterator_begin(struct ref_iterator *iter0,
diff --git a/refs/packed-backend.c b/refs/packed-backend.c
index 97b68377673..ad23f734b0f 100644
--- a/refs/packed-backend.c
+++ b/refs/packed-backend.c
@@ -913,7 +913,7 @@ static int packed_ref_iterator_abort(struct ref_iterator *ref_iterator)
 static struct ref_iterator_vtable packed_ref_iterator_vtable = {
 	.advance = packed_ref_iterator_advance,
 	.peel = packed_ref_iterator_peel,
-	.abort = packed_ref_iterator_abort
+	.end = packed_ref_iterator_abort
 };
 
 static struct ref_iterator *packed_ref_iterator_begin(
diff --git a/refs/ref-cache.c b/refs/ref-cache.c
index 32afd8a40b0..b4acaac2fb5 100644
--- a/refs/ref-cache.c
+++ b/refs/ref-cache.c
@@ -458,7 +458,7 @@ static int cache_ref_iterator_abort(struct ref_iterator *ref_iterator)
 static struct ref_iterator_vtable cache_ref_iterator_vtable = {
 	.advance = cache_ref_iterator_advance,
 	.peel = cache_ref_iterator_peel,
-	.abort = cache_ref_iterator_abort
+	.end = cache_ref_iterator_abort
 };
 
 struct ref_iterator *cache_ref_iterator_begin(struct ref_cache *cache,
diff --git a/refs/refs-internal.h b/refs/refs-internal.h
index 69f93b0e2ac..7f462273fba 100644
--- a/refs/refs-internal.h
+++ b/refs/refs-internal.h
@@ -478,7 +478,7 @@ typedef int ref_iterator_abort_fn(struct ref_iterator *ref_iterator);
 struct ref_iterator_vtable {
 	ref_iterator_advance_fn *advance;
 	ref_iterator_peel_fn *peel;
-	ref_iterator_abort_fn *abort;
+	ref_iterator_abort_fn *end;
 };
 
 /*
-- 
2.36.1.1046.g586767a6996