[PATCH 5/8] [GSOC] ref-filter: introduce symref_atom_parser()

["ZheNing Hu via GitGitGadget" <gitgitgadget@gmail.com>]

From: ZheNing Hu <adlternative@gmail.com>

parse_ref_filter_atom() sets need_symref by checking
whether the atom type is ATOM_SYMREF. When we are operating
other atoms here, this step of checking is not necessary.

So add the symref_atom_parser() specifically to parse the
%(symref) atom, and set need_symref in it.

This can make the program logic more concise.

Mentored-by: Christian Couder <christian.couder@gmail.com>
Mentored-by: Hariom Verma <hariom18599@gmail.com>
Signed-off-by: ZheNing Hu <adlternative@gmail.com>
---
 ref-filter.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/ref-filter.c b/ref-filter.c
index e42cd738c32..8dca273f720 100644
--- a/ref-filter.c
+++ b/ref-filter.c
@@ -495,6 +495,13 @@ static int person_email_atom_parser(struct ref_format *format, struct used_atom
 	return 0;
 }
 
+static int symref_atom_parser(struct ref_format *format, struct used_atom *atom,
+			       const char *arg, struct strbuf *err)
+{
+	need_symref = 1;
+	return refname_atom_parser_internal(&atom->u.refname, arg, atom->name, err);
+}
+
 static int refname_atom_parser(struct ref_format *format, struct used_atom *atom,
 			       const char *arg, struct strbuf *err)
 {
@@ -634,7 +641,7 @@ static struct {
 	[ATOM_RAW] = { "raw", SOURCE_OBJ, FIELD_STR, raw_atom_parser },
 	[ATOM_UPSTREAM] = { "upstream", SOURCE_NONE, FIELD_STR, remote_ref_atom_parser },
 	[ATOM_PUSH] = { "push", SOURCE_NONE, FIELD_STR, remote_ref_atom_parser },
-	[ATOM_SYMREF] = { "symref", SOURCE_NONE, FIELD_STR, refname_atom_parser },
+	[ATOM_SYMREF] = { "symref", SOURCE_NONE, FIELD_STR, symref_atom_parser },
 	[ATOM_FLAG] = { "flag", SOURCE_NONE },
 	[ATOM_HEAD] = { "HEAD", SOURCE_NONE, FIELD_STR, head_atom_parser },
 	[ATOM_COLOR] = { "color", SOURCE_NONE, FIELD_STR, color_atom_parser },
@@ -758,8 +765,6 @@ static int parse_ref_filter_atom(struct ref_format *format,
 		return -1;
 	if (*atom == '*')
 		need_tagged = 1;
-	if (i == ATOM_SYMREF)
-		need_symref = 1;
 	return at;
 }
 
-- 
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