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From: Michael Haggerty <mhagger@alum.mit.edu>
To: Junio C Hamano <gitster@pobox.com>, Jeff King <peff@peff.net>
Cc: Johan Herland <johan@herland.net>,
	Thomas Rast <trast@inf.ethz.ch>,
	git@vger.kernel.org, Michael Haggerty <mhagger@alum.mit.edu>
Subject: [PATCH v2 04/25] builtin_diff_tree(): make it obvious that function wants two entries
Date: Sat, 25 May 2013 11:08:03 +0200	[thread overview]
Message-ID: <1369472904-12875-5-git-send-email-mhagger@alum.mit.edu> (raw)
In-Reply-To: <1369472904-12875-1-git-send-email-mhagger@alum.mit.edu>

Instead of accepting an array and using exactly two elements from the
array, take two single (struct object_array_entry *) arguments.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
---
 builtin/diff.c | 19 ++++++++++---------
 1 file changed, 10 insertions(+), 9 deletions(-)

diff --git a/builtin/diff.c b/builtin/diff.c
index 8c2af6c..abdd613 100644
--- a/builtin/diff.c
+++ b/builtin/diff.c
@@ -153,7 +153,8 @@ static int builtin_diff_index(struct rev_info *revs,
 
 static int builtin_diff_tree(struct rev_info *revs,
 			     int argc, const char **argv,
-			     struct object_array_entry *ent)
+			     struct object_array_entry *ent0,
+			     struct object_array_entry *ent1)
 {
 	const unsigned char *(sha1[2]);
 	int swap = 0;
@@ -161,13 +162,14 @@ static int builtin_diff_tree(struct rev_info *revs,
 	if (argc > 1)
 		usage(builtin_diff_usage);
 
-	/* We saw two trees, ent[0] and ent[1].
-	 * if ent[1] is uninteresting, they are swapped
+	/*
+	 * We saw two trees, ent0 and ent1.  If ent1 is uninteresting,
+	 * swap them.
 	 */
-	if (ent[1].item->flags & UNINTERESTING)
+	if (ent1->item->flags & UNINTERESTING)
 		swap = 1;
-	sha1[swap] = ent[0].item->sha1;
-	sha1[1-swap] = ent[1].item->sha1;
+	sha1[swap] = ent0->item->sha1;
+	sha1[1-swap] = ent1->item->sha1;
 	diff_tree_sha1(sha1[0], sha1[1], "", &revs->diffopt);
 	log_tree_diff_flush(revs);
 	return 0;
@@ -403,7 +405,7 @@ int cmd_diff(int argc, const char **argv, const char *prefix)
 	else if (ents == 1)
 		result = builtin_diff_index(&rev, argc, argv);
 	else if (ents == 2)
-		result = builtin_diff_tree(&rev, argc, argv, ent);
+		result = builtin_diff_tree(&rev, argc, argv, &ent[0], &ent[1]);
 	else if (ent[0].item->flags & UNINTERESTING) {
 		/*
 		 * diff A...B where there is at least one merge base
@@ -412,8 +414,7 @@ int cmd_diff(int argc, const char **argv, const char *prefix)
 		 * between the base and B.  Note that we pick one
 		 * merge base at random if there are more than one.
 		 */
-		ent[1] = ent[ents-1];
-		result = builtin_diff_tree(&rev, argc, argv, ent);
+		result = builtin_diff_tree(&rev, argc, argv, &ent[0], &ent[ents-1]);
 	} else
 		result = builtin_diff_combined(&rev, argc, argv,
 					       ent, ents);
-- 
1.8.2.3

  parent reply	other threads:[~2013-05-25  9:09 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-05-25  9:07 [PATCH v2 00/25] Remove assumptions about each_ref_fn arg lifetimes Michael Haggerty
2013-05-25  9:08 ` [PATCH v2 01/25] describe: make own copy of refname Michael Haggerty
2013-05-25  9:08 ` [PATCH v2 02/25] fetch: make own copies of refnames Michael Haggerty
2013-05-25  9:08 ` [PATCH v2 03/25] add_rev_cmdline(): make a copy of the name argument Michael Haggerty
2013-05-25  9:08 ` Michael Haggerty [this message]
2013-05-25  9:08 ` [PATCH v2 05/25] cmd_diff(): use an object_array for holding trees Michael Haggerty
2013-05-25  9:08 ` [PATCH v2 06/25] cmd_diff(): rename local variable "list" -> "entry" Michael Haggerty
2013-05-25  9:08 ` [PATCH v2 07/25] cmd_diff(): make it obvious which cases are exclusive of each other Michael Haggerty
2013-05-25  9:08 ` [PATCH v2 08/25] revision: split some overly-long lines Michael Haggerty
2013-05-25  9:08 ` [PATCH v2 09/25] object_array: add function object_array_filter() Michael Haggerty
2013-05-25  9:08 ` [PATCH v2 10/25] revision: use object_array_filter() in implementation of gc_boundary() Michael Haggerty
2013-05-25  9:08 ` [PATCH v2 11/25] object_array_remove_duplicates(): rewrite to reduce copying Michael Haggerty
2013-05-29 16:18   ` Junio C Hamano
2013-05-30 21:14     ` Michael Haggerty
2013-06-02 21:02       ` Junio C Hamano
2013-05-25  9:08 ` [PATCH v2 12/25] fsck: don't put a void*-shaped peg in a char*-shaped hole Michael Haggerty
2013-05-25  9:08 ` [PATCH v2 13/25] find_first_merges(): initialize merges variable using initializer Michael Haggerty
2013-05-25  9:08 ` [PATCH v2 14/25] find_first_merges(): remove unnecessary code Michael Haggerty
2013-05-25  9:08 ` [PATCH v2 15/25] object_array_entry: fix memory handling of the name field Michael Haggerty
2013-05-29 16:24   ` Junio C Hamano
2013-05-25  9:08 ` [PATCH v2 16/25] do_fetch(): reduce scope of peer_item Michael Haggerty
2013-05-25  9:08 ` [PATCH v2 17/25] do_fetch(): clean up existing_refs before exiting Michael Haggerty
2013-05-25  9:08 ` [PATCH v2 18/25] add_existing(): do not retain a reference to sha1 Michael Haggerty
2013-05-25  9:08 ` [PATCH v2 19/25] show_head_ref(): do not shadow name of argument Michael Haggerty
2013-05-25  9:08 ` [PATCH v2 20/25] show_head_ref(): rename first parameter to "refname" Michael Haggerty
2013-05-25  9:08 ` [PATCH v2 21/25] string_list_add_one_ref(): " Michael Haggerty
2013-05-25  9:08 ` [PATCH v2 22/25] string_list_add_refs_by_glob(): add a comment about memory management Michael Haggerty
2013-05-29  8:21   ` Thomas Rast
2013-05-30 19:29     ` Michael Haggerty
2013-05-30 22:05     ` [PATCH v2 FIXUP 22/25] fixup! " Michael Haggerty
2013-06-03 15:31       ` Junio C Hamano
2013-05-25  9:08 ` [PATCH v2 23/25] exclude_existing(): set existing_refs.strdup_strings Michael Haggerty
2013-05-25  9:08 ` [PATCH v2 24/25] register_ref(): make a copy of the bad reference SHA-1 Michael Haggerty
2013-05-29 16:53   ` Junio C Hamano
2013-05-30 21:51     ` Michael Haggerty
2013-05-30 22:09       ` Philip Oakley
2013-05-25  9:08 ` [PATCH v2 25/25] refs: document the lifetime of the args passed to each_ref_fn Michael Haggerty
2013-05-29 16:54   ` Junio C Hamano
2013-05-29  8:25 ` [PATCH v2 00/25] Remove assumptions about each_ref_fn arg lifetimes Thomas Rast
2013-05-30 19:55   ` Michael Haggerty

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