xdiff: remove emit_func() and xdi_diff_hunks()

The functions are unused now, remove them.

Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

xdiff-interface.c

@@ -156,50 +156,6 @@ int xdi_diff_outf(mmfile_t *mf1, mmfile_t *mf2,
 	return ret;
 }
 
-struct xdiff_emit_hunk_state {
-	xdiff_emit_hunk_consume_fn consume;
-	void *consume_callback_data;
-};
-
-static int process_diff(xdfenv_t *xe, xdchange_t *xscr, xdemitcb_t *ecb,
-			xdemitconf_t const *xecfg)
-{
-	long s1, s2, same, p_next, t_next;
-	xdchange_t *xch, *xche;
-	struct xdiff_emit_hunk_state *state = ecb->priv;
-	xdiff_emit_hunk_consume_fn fn = state->consume;
-	void *consume_callback_data = state->consume_callback_data;
-
-	for (xch = xscr; xch; xch = xche->next) {
-		xche = xdl_get_hunk(xch, xecfg);
-
-		s1 = XDL_MAX(xch->i1 - xecfg->ctxlen, 0);
-		s2 = XDL_MAX(xch->i2 - xecfg->ctxlen, 0);
-		same = s2 + XDL_MAX(xch->i1 - s1, 0);
-		p_next = xche->i1 + xche->chg1;
-		t_next = xche->i2 + xche->chg2;
-
-		fn(consume_callback_data, same, p_next, t_next);
-	}
-	return 0;
-}
-
-int xdi_diff_hunks(mmfile_t *mf1, mmfile_t *mf2,
-		   xdiff_emit_hunk_consume_fn fn, void *consume_callback_data,
-		   xpparam_t const *xpp, xdemitconf_t *xecfg)
-{
-	struct xdiff_emit_hunk_state state;
-	xdemitcb_t ecb;
-
-	memset(&state, 0, sizeof(state));
-	memset(&ecb, 0, sizeof(ecb));
-	state.consume = fn;
-	state.consume_callback_data = consume_callback_data;
-	xecfg->emit_func = (void (*)())process_diff;
-	ecb.priv = &state;
-	return xdi_diff(mf1, mf2, xpp, xecfg, &ecb);
-}
-
 int read_mmfile(mmfile_t *ptr, const char *filename)
 {
 	struct stat st;

xdiff-interface.h

@@ -4,15 +4,11 @@
 #include "xdiff/xdiff.h"
 
 typedef void (*xdiff_emit_consume_fn)(void *, char *, unsigned long);
-typedef void (*xdiff_emit_hunk_consume_fn)(void *, long, long, long);
 
 int xdi_diff(mmfile_t *mf1, mmfile_t *mf2, xpparam_t const *xpp, xdemitconf_t const *xecfg, xdemitcb_t *ecb);
 int xdi_diff_outf(mmfile_t *mf1, mmfile_t *mf2,
 		  xdiff_emit_consume_fn fn, void *consume_callback_data,
 		  xpparam_t const *xpp, xdemitconf_t const *xecfg);
-int xdi_diff_hunks(mmfile_t *mf1, mmfile_t *mf2,
-		   xdiff_emit_hunk_consume_fn fn, void *consume_callback_data,
-		   xpparam_t const *xpp, xdemitconf_t *xecfg);
 int parse_hunk_header(char *line, int len,
 		      int *ob, int *on,
 		      int *nb, int *nn);

xdiff/xdiff.h

@@ -96,7 +96,6 @@ typedef struct s_xdemitconf {
 	unsigned long flags;
 	find_func_t find_func;
 	void *find_func_priv;
-	void (*emit_func)();
 	xdl_emit_hunk_consume_func_t hunk_func;
 } xdemitconf_t;
 

xdiff/xdiffi.c

@@ -557,11 +557,7 @@ int xdl_diff(mmfile_t *mf1, mmfile_t *mf2, xpparam_t const *xpp,
 	     xdemitconf_t const *xecfg, xdemitcb_t *ecb) {
 	xdchange_t *xscr;
 	xdfenv_t xe;
-	emit_func_t ef = xecfg->emit_func ?
-		(emit_func_t)xecfg->emit_func : xdl_emit_diff;
-
-	if (xecfg->hunk_func)
-		ef = xdl_call_hunk_func;
+	emit_func_t ef = xecfg->hunk_func ? xdl_call_hunk_func : xdl_emit_diff;
 
 	if (xdl_do_diff(mf1, mf2, xpp, &xe) < 0) {