[GSoC][PATCH] {apply,alias}: convert pre-processor macros to enums

[Vinayak Dev <vinayakdev.sci@gmail.com>]

Groups related #define macros into enums in apply.c and alias.c .
The changed #define macros are related constants, so it makes sense to group them.
This also makes debugging easier, as modern debuggers can identify enum constants and list them accordingly.

Signed-off-by: Vinayak Dev <vinayakdev.sci@gmail.com>

vinayakdsci (1):
  Change #define to enum in apply.c and alias.c

 alias.c | 12 +++++++++---
 apply.c | 19 +++++++++++++++----
 2 files changed, 24 insertions(+), 7 deletions(-)


diff --git a/alias.c b/alias.c
index 00abde0817..61ef2c0c54 100644
--- a/alias.c
+++ b/alias.c
@@ -44,9 +44,15 @@ void list_aliases(struct string_list *list)
 	read_early_config(config_alias_cb, &data);
 }
 
-#define SPLIT_CMDLINE_BAD_ENDING 1
-#define SPLIT_CMDLINE_UNCLOSED_QUOTE 2
-#define SPLIT_CMDLINE_ARGC_OVERFLOW 3
+/* #define SPLIT_CMDLINE_BAD_ENDING 1 */
+/* #define SPLIT_CMDLINE_UNCLOSED_QUOTE 2 */
+/* #define SPLIT_CMDLINE_ARGC_OVERFLOW 3 */
+enum split_cmdline_error {
+	SPLIT_CMDLINE_BAD_ENDING = 1,
+	SPLIT_CMDLINE_UNCLOSED_QUOTE,
+	SPLIT_CMDLINE_ARGC_OVERFLOW
+};
+
 static const char *split_cmdline_errors[] = {
 	N_("cmdline ends with \\"),
 	N_("unclosed quote"),
diff --git a/apply.c b/apply.c
index 5eec433583..1e9cf2f4f2 100644
--- a/apply.c
+++ b/apply.c
@@ -205,8 +205,13 @@ struct fragment {
  * or deflated "literal".
  */
 #define binary_patch_method leading
-#define BINARY_DELTA_DEFLATED	1
-#define BINARY_LITERAL_DEFLATED 2
+/* #define BINARY_DELTA_DEFLATED   1 */
+/* #define BINARY_LITERAL_DEFLATED 2 */
+
+enum binary_type_deflated {
+	BINARY_DELTA_DEFLATED = 1,
+	BINARY_LITERAL_DEFLATED
+};
 
 static void free_fragment_list(struct fragment *list)
 {
@@ -918,8 +923,14 @@ static int gitdiff_hdrend(struct gitdiff_data *state UNUSED,
  * their names against any previous information, just
  * to make sure..
  */
-#define DIFF_OLD_NAME 0
-#define DIFF_NEW_NAME 1
+
+/* #define DIFF_OLD_NAME 0 */
+/* #define DIFF_NEW_NAME 1 */
+
+enum diff_name {
+	DIFF_OLD_NAME = 0,
+	DIFF_NEW_NAME
+};
 
 static int gitdiff_verify_name(struct gitdiff_data *state,
 			       const char *line,
-- 
2.39.1