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authorJunio C Hamano <gitster@pobox.com>2008-08-13 23:18:22 -0700
committerJunio C Hamano <gitster@pobox.com>2008-08-14 00:30:26 -0700
commit8a3f524bf2ac534b313a7d8e70cc164cef744949 (patch)
treeec390ebbf7cb3d7b441043d18956abf82b40e3ad /diff.c
parentb463776086a12c587f6d91c0347641fb6f7ddd72 (diff)
downloadgit-8a3f524bf2ac534b313a7d8e70cc164cef744949.tar.gz
xdiff-interface: hide the whole "xdiff_emit_state" business from the caller
This further enhances xdi_diff_outf() interface so that it takes two common parameters: the callback function that processes one line at a time, and a pointer to its application specific callback data structure. xdi_diff_outf() creates its own "xdiff_emit_state" structure and stashes these two away inside it, which is used by the lowest level output function in the xdiff_outf() callchain, consume_one(), to call back to the application layer. With this restructuring, we lift the requirement that the caller supplied callback data structure embeds xdiff_emit_state structure as its first member. Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'diff.c')
-rw-r--r--diff.c27
1 files changed, 10 insertions, 17 deletions
diff --git a/diff.c b/diff.c
index 913a92f3e9..a6c143251c 100644
--- a/diff.c
+++ b/diff.c
@@ -369,7 +369,6 @@ static void diff_words_append(char *line, unsigned long len,
}
struct diff_words_data {
- struct xdiff_emit_state xm;
struct diff_words_buffer minus, plus;
FILE *file;
};
@@ -459,9 +458,8 @@ static void diff_words_show(struct diff_words_data *diff_words)
xpp.flags = XDF_NEED_MINIMAL;
xecfg.ctxlen = diff_words->minus.alloc + diff_words->plus.alloc;
- diff_words->xm.consume = fn_out_diff_words_aux;
- xdi_diff_outf(&minus, &plus, &diff_words->xm, &xpp, &xecfg, &ecb);
-
+ xdi_diff_outf(&minus, &plus, fn_out_diff_words_aux, diff_words,
+ &xpp, &xecfg, &ecb);
free(minus.ptr);
free(plus.ptr);
diff_words->minus.text.size = diff_words->plus.text.size = 0;
@@ -475,7 +473,6 @@ static void diff_words_show(struct diff_words_data *diff_words)
typedef unsigned long (*sane_truncate_fn)(char *line, unsigned long len);
struct emit_callback {
- struct xdiff_emit_state xm;
int nparents, color_diff;
unsigned ws_rule;
sane_truncate_fn truncate;
@@ -706,8 +703,6 @@ static char *pprint_rename(const char *a, const char *b)
}
struct diffstat_t {
- struct xdiff_emit_state xm;
-
int nr;
int alloc;
struct diffstat_file {
@@ -1129,7 +1124,6 @@ static void free_diffstat_info(struct diffstat_t *diffstat)
}
struct checkdiff_t {
- struct xdiff_emit_state xm;
const char *filename;
int lineno;
struct diff_options *o;
@@ -1519,13 +1513,13 @@ static void builtin_diff(const char *name_a,
xecfg.ctxlen = strtoul(diffopts + 10, NULL, 10);
else if (!prefixcmp(diffopts, "-u"))
xecfg.ctxlen = strtoul(diffopts + 2, NULL, 10);
- ecbdata.xm.consume = fn_out_consume;
if (DIFF_OPT_TST(o, COLOR_DIFF_WORDS)) {
ecbdata.diff_words =
xcalloc(1, sizeof(struct diff_words_data));
ecbdata.diff_words->file = o->file;
}
- xdi_diff_outf(&mf1, &mf2, &ecbdata.xm, &xpp, &xecfg, &ecb);
+ xdi_diff_outf(&mf1, &mf2, fn_out_consume, &ecbdata,
+ &xpp, &xecfg, &ecb);
if (DIFF_OPT_TST(o, COLOR_DIFF_WORDS))
free_diff_words_data(&ecbdata);
}
@@ -1576,7 +1570,8 @@ static void builtin_diffstat(const char *name_a, const char *name_b,
memset(&xecfg, 0, sizeof(xecfg));
xpp.flags = XDF_NEED_MINIMAL | o->xdl_opts;
- xdi_diff_outf(&mf1, &mf2, &diffstat->xm, &xpp, &xecfg, &ecb);
+ xdi_diff_outf(&mf1, &mf2, diffstat_consume, diffstat,
+ &xpp, &xecfg, &ecb);
}
free_and_return:
@@ -1597,7 +1592,6 @@ static void builtin_checkdiff(const char *name_a, const char *name_b,
return;
memset(&data, 0, sizeof(data));
- data.xm.consume = checkdiff_consume;
data.filename = name_b ? name_b : name_a;
data.lineno = 0;
data.o = o;
@@ -1622,7 +1616,8 @@ static void builtin_checkdiff(const char *name_a, const char *name_b,
memset(&xecfg, 0, sizeof(xecfg));
xpp.flags = XDF_NEED_MINIMAL;
- xdi_diff_outf(&mf1, &mf2, &data.xm, &xpp, &xecfg, &ecb);
+ xdi_diff_outf(&mf1, &mf2, checkdiff_consume, &data,
+ &xpp, &xecfg, &ecb);
if ((data.ws_rule & WS_TRAILING_SPACE) &&
data.trailing_blanks_start) {
@@ -3010,7 +3005,6 @@ static void diff_summary(FILE *file, struct diff_filepair *p)
}
struct patch_id_t {
- struct xdiff_emit_state xm;
SHA_CTX *ctx;
int patchlen;
};
@@ -3055,7 +3049,6 @@ static int diff_get_patch_id(struct diff_options *options, unsigned char *sha1)
SHA1_Init(&ctx);
memset(&data, 0, sizeof(struct patch_id_t));
data.ctx = &ctx;
- data.xm.consume = patch_id_consume;
for (i = 0; i < q->nr; i++) {
xpparam_t xpp;
@@ -3120,7 +3113,8 @@ static int diff_get_patch_id(struct diff_options *options, unsigned char *sha1)
xpp.flags = XDF_NEED_MINIMAL;
xecfg.ctxlen = 3;
xecfg.flags = XDL_EMIT_FUNCNAMES;
- xdi_diff_outf(&mf1, &mf2, &data.xm, &xpp, &xecfg, &ecb);
+ xdi_diff_outf(&mf1, &mf2, patch_id_consume, &data,
+ &xpp, &xecfg, &ecb);
}
SHA1_Final(sha1, &ctx);
@@ -3197,7 +3191,6 @@ void diff_flush(struct diff_options *options)
struct diffstat_t diffstat;
memset(&diffstat, 0, sizeof(struct diffstat_t));
- diffstat.xm.consume = diffstat_consume;
for (i = 0; i < q->nr; i++) {
struct diff_filepair *p = q->queue[i];
if (check_pair_status(p))