diff --git a/builtin/rev-parse.c b/builtin/rev-parse.c
index e75ce75beda..b6232390a64 100644
--- a/builtin/rev-parse.c
+++ b/builtin/rev-parse.c
@@ -190,17 +190,17 @@ static int show_default(void)
 	return 0;
 }
 
-static int show_reference(const char *refname, const unsigned char *sha1, int flag, void *cb_data)
+static int show_reference(const char *refname, const struct object_id *oid, int flag, void *cb_data)
 {
 	if (ref_excluded(ref_excludes, refname))
 		return 0;
-	show_rev(NORMAL, sha1, refname);
+	show_rev(NORMAL, oid->hash, refname);
 	return 0;
 }
 
-static int anti_reference(const char *refname, const unsigned char *sha1, int flag, void *cb_data)
+static int anti_reference(const char *refname, const struct object_id *oid, int flag, void *cb_data)
 {
-	show_rev(REVERSED, sha1, refname);
+	show_rev(REVERSED, oid->hash, refname);
 	return 0;
 }
 
@@ -511,10 +511,6 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix)
 	unsigned int flags = 0;
 	const char *name = NULL;
 	struct object_context unused;
-	struct each_ref_fn_sha1_adapter wrapped_show_reference =
-		{show_reference, NULL};
-	struct each_ref_fn_sha1_adapter wrapped_anti_reference =
-		{anti_reference, NULL};
 
 	if (argc > 1 && !strcmp("--parseopt", argv[1]))
 		return cmd_parseopt(argc - 1, argv + 1, prefix);
@@ -656,7 +652,7 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix)
 				continue;
 			}
 			if (!strcmp(arg, "--all")) {
-				for_each_ref(each_ref_fn_adapter, &wrapped_show_reference);
+				for_each_ref(show_reference, NULL);
 				continue;
 			}
 			if (starts_with(arg, "--disambiguate=")) {
@@ -664,48 +660,45 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix)
 				continue;
 			}
 			if (!strcmp(arg, "--bisect")) {
-				for_each_ref_in("refs/bisect/bad",
-						each_ref_fn_adapter, &wrapped_show_reference);
-				for_each_ref_in("refs/bisect/good",
-						each_ref_fn_adapter, &wrapped_anti_reference);
+				for_each_ref_in("refs/bisect/bad", show_reference, NULL);
+				for_each_ref_in("refs/bisect/good", anti_reference, NULL);
 				continue;
 			}
 			if (starts_with(arg, "--branches=")) {
-				for_each_glob_ref_in(each_ref_fn_adapter, arg + 11,
-					"refs/heads/", &wrapped_show_reference);
+				for_each_glob_ref_in(show_reference, arg + 11,
+					"refs/heads/", NULL);
 				clear_ref_exclusion(&ref_excludes);
 				continue;
 			}
 			if (!strcmp(arg, "--branches")) {
-				for_each_branch_ref(each_ref_fn_adapter, &wrapped_show_reference);
+				for_each_branch_ref(show_reference, NULL);
 				clear_ref_exclusion(&ref_excludes);
 				continue;
 			}
 			if (starts_with(arg, "--tags=")) {
-				for_each_glob_ref_in(each_ref_fn_adapter, arg + 7,
-					"refs/tags/", &wrapped_show_reference);
+				for_each_glob_ref_in(show_reference, arg + 7,
+					"refs/tags/", NULL);
 				clear_ref_exclusion(&ref_excludes);
 				continue;
 			}
 			if (!strcmp(arg, "--tags")) {
-				for_each_tag_ref(each_ref_fn_adapter, &wrapped_show_reference);
+				for_each_tag_ref(show_reference, NULL);
 				clear_ref_exclusion(&ref_excludes);
 				continue;
 			}
 			if (starts_with(arg, "--glob=")) {
-				for_each_glob_ref(each_ref_fn_adapter, arg + 7,
-						  &wrapped_show_reference);
+				for_each_glob_ref(show_reference, arg + 7, NULL);
 				clear_ref_exclusion(&ref_excludes);
 				continue;
 			}
 			if (starts_with(arg, "--remotes=")) {
-				for_each_glob_ref_in(each_ref_fn_adapter, arg + 10,
-					"refs/remotes/", &wrapped_show_reference);
+				for_each_glob_ref_in(show_reference, arg + 10,
+					"refs/remotes/", NULL);
 				clear_ref_exclusion(&ref_excludes);
 				continue;
 			}
 			if (!strcmp(arg, "--remotes")) {
-				for_each_remote_ref(each_ref_fn_adapter, &wrapped_show_reference);
+				for_each_remote_ref(show_reference, NULL);
 				clear_ref_exclusion(&ref_excludes);
 				continue;
 			}