[PATCH v2 18/29] tree-walk.h users: use temporary variable(s) for "mode"

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In preparation for an eventual rename of the "mode" field, add
temporary variable(s) in those places where it's used more than once.

This will make a subsequent commits easier to read., since we're only
going to need to modify the line on which the assignment happens.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@xxxxxxxxx>
---
 builtin/merge-tree.c | 12 +++++++++---
 match-trees.c        | 13 +++++++------
 merge-ort.c          |  5 +++--
 notes.c              |  3 ++-
 tree-diff.c          | 13 ++++++++-----
 unpack-trees.c       |  3 ++-
 6 files changed, 31 insertions(+), 18 deletions(-)

diff --git a/builtin/merge-tree.c b/builtin/merge-tree.c
index 12cb317c1ba..eec5b906561 100644
--- a/builtin/merge-tree.c
+++ b/builtin/merge-tree.c
@@ -190,14 +190,17 @@ static void resolve(const struct traverse_info *info, struct name_entry *ours, s
 {
 	struct merge_list *orig, *final;
 	const char *path;
+	unsigned int orig_mode, final_mode;
 
 	/* If it's already ours, don't bother showing it */
 	if (!ours)
 		return;
 
 	path = traverse_path(info, result);
-	orig = create_entry(2, ours->mode, &ours->oid, path);
-	final = create_entry(0, result->mode, &result->oid, path);
+	orig_mode = ours->mode;
+	orig = create_entry(2, orig_mode, &ours->oid, path);
+	final_mode = result->mode;
+	final = create_entry(0, final_mode, &result->oid, path);
 
 	final->link = orig;
 
@@ -241,6 +244,7 @@ static struct merge_list *link_entry(unsigned stage, const struct traverse_info
 {
 	const char *path;
 	struct merge_list *link;
+	unsigned int link_mode;
 
 	if (n->object_type == OBJ_NONE)
 		return entry;
@@ -248,7 +252,9 @@ static struct merge_list *link_entry(unsigned stage, const struct traverse_info
 		path = entry->path;
 	else
 		path = traverse_path(info, n);
-	link = create_entry(stage, n->mode, &n->oid, path);
+	link_mode = n->mode;
+	link = create_entry(stage, link_mode, &n->oid, path);
+
 	link->link = entry;
 	return link;
 }
diff --git a/match-trees.c b/match-trees.c
index a28c19a62a5..f3e192ca74d 100644
--- a/match-trees.c
+++ b/match-trees.c
@@ -86,6 +86,8 @@ static int score_trees(const struct object_id *hash1, const struct object_id *ha
 
 	for (;;) {
 		int cmp;
+		unsigned int one_mode = one.entry.mode;
+		unsigned int two_mode = two.entry.mode;
 
 		if (one.size && two.size)
 			cmp = base_name_entries_compare(&one.entry, &two.entry);
@@ -100,22 +102,21 @@ static int score_trees(const struct object_id *hash1, const struct object_id *ha
 
 		if (cmp < 0) {
 			/* path1 does not appear in two */
-			score += score_missing(one.entry.mode);
+			score += score_missing(one_mode);
 			update_tree_entry(&one);
 		} else if (cmp > 0) {
 			/* path2 does not appear in one */
-			score += score_missing(two.entry.mode);
+			score += score_missing(two_mode);
 			update_tree_entry(&two);
 		} else {
+
 			/* path appears in both */
 			if (!oideq(&one.entry.oid, &two.entry.oid)) {
 				/* they are different */
-				score += score_differs(one.entry.mode,
-						       two.entry.mode);
+				score += score_differs(one_mode, two_mode);
 			} else {
 				/* same subtree or blob */
-				score += score_matches(one.entry.mode,
-						       two.entry.mode);
+				score += score_matches(one_mode, two_mode);
 			}
 			update_tree_entry(&one);
 			update_tree_entry(&two);
diff --git a/merge-ort.c b/merge-ort.c
index e54be179bd5..cad10436504 100644
--- a/merge-ort.c
+++ b/merge-ort.c
@@ -544,11 +544,12 @@ static void add_pair(struct merge_options *opt,
 	struct diff_filespec *one, *two;
 	struct rename_info *renames = &opt->priv->renames;
 	int names_idx = is_add ? side : 0;
+	const struct object_id *oid = &names[names_idx].oid;
+	unsigned int mode = names[names_idx].mode;
 
 	one = alloc_filespec(pathname);
 	two = alloc_filespec(pathname);
-	fill_filespec(is_add ? two : one,
-		      &names[names_idx].oid, 1, names[names_idx].mode);
+	fill_filespec(is_add ? two : one, oid, 1, mode);
 	diff_queue(&renames->pairs[side], one, two);
 }
 
diff --git a/notes.c b/notes.c
index d631dc5623e..688d03ee9cd 100644
--- a/notes.c
+++ b/notes.c
@@ -478,6 +478,7 @@ static void load_subtree(struct notes_tree *t, struct leaf_node *subtree,
 			struct strbuf non_note_path = STRBUF_INIT;
 			const char *q = oid_to_hex(&subtree->key_oid);
 			size_t i;
+			unsigned int mode = entry.mode;
 			for (i = 0; i < prefix_len; i++) {
 				strbuf_addch(&non_note_path, *q++);
 				strbuf_addch(&non_note_path, *q++);
@@ -485,7 +486,7 @@ static void load_subtree(struct notes_tree *t, struct leaf_node *subtree,
 			}
 			strbuf_add(&non_note_path, entry.path, path_len);
 			add_non_note(t, strbuf_detach(&non_note_path, NULL),
-				     entry.mode, entry.oid.hash);
+				     mode, entry.oid.hash);
 		}
 	}
 	free(buf);
diff --git a/tree-diff.c b/tree-diff.c
index 6ec180331fb..088ed52d6a3 100644
--- a/tree-diff.c
+++ b/tree-diff.c
@@ -466,17 +466,19 @@ static struct combine_diff_path *ll_diff_tree_paths(
 		tp[0].entry.mode &= ~S_IFXMIN_NEQ;
 
 		for (i = 1; i < nparent; ++i) {
+			unsigned int mode = tp[i].entry.mode;
 			cmp = tree_entry_pathcmp(&tp[i], &tp[imin]);
 			if (cmp < 0) {
 				imin = i;
-				tp[i].entry.mode &= ~S_IFXMIN_NEQ;
+				mode &= ~S_IFXMIN_NEQ;
 			}
 			else if (cmp == 0) {
-				tp[i].entry.mode &= ~S_IFXMIN_NEQ;
+				mode &= ~S_IFXMIN_NEQ;
 			}
 			else {
-				tp[i].entry.mode |= S_IFXMIN_NEQ;
+				mode |= S_IFXMIN_NEQ;
 			}
+			tp[i].entry.mode = mode;
 		}
 
 		/* fixup markings for entries before imin */
@@ -493,13 +495,14 @@ static struct combine_diff_path *ll_diff_tree_paths(
 			/* are either pi > p[imin] or diff(t,pi) != ø ? */
 			if (!opt->flags.find_copies_harder) {
 				for (i = 0; i < nparent; ++i) {
+					unsigned int mode = tp[i].entry.mode;
 					/* p[i] > p[imin] */
-					if (tp[i].entry.mode & S_IFXMIN_NEQ)
+					if (mode & S_IFXMIN_NEQ)
 						continue;
 
 					/* diff(t,pi) != ø */
 					if (!oideq(&t.entry.oid, &tp[i].entry.oid) ||
-					    (t.entry.mode != tp[i].entry.mode))
+					    (t.entry.mode != mode))
 						continue;
 
 					goto skip_emit_t_tp;
diff --git a/unpack-trees.c b/unpack-trees.c
index 33de78e32c8..2319b114ba0 100644
--- a/unpack-trees.c
+++ b/unpack-trees.c
@@ -1023,8 +1023,9 @@ static struct cache_entry *create_ce_entry(const struct traverse_info *info,
 		is_transient ?
 		make_empty_transient_cache_entry(len) :
 		make_empty_cache_entry(istate, len);
+	unsigned int mode = n->mode;
 
-	ce->ce_mode = create_ce_mode(n->mode);
+	ce->ce_mode = create_ce_mode(mode);
 	ce->ce_flags = create_ce_flags(stage);
 	ce->ce_namelen = len;
 	oidcpy(&ce->oid, &n->oid);
-- 
2.31.0.rc2.211.g1d0b8788b3




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