quark updated this revision to Diff 6682.
quark edited the summary of this revision.
quark retitled this revision from "xdiff: remove unused structure and 
functions" to "xdiff: remove unused structure, functions, and constants".

REPOSITORY
  rHG Mercurial

CHANGES SINCE LAST UPDATE
  https://phab.mercurial-scm.org/D2684?vs=6642&id=6682

REVISION DETAIL
  https://phab.mercurial-scm.org/D2684

AFFECTED FILES
  mercurial/cext/bdiff.c
  mercurial/thirdparty/xdiff/xdiff.h
  mercurial/thirdparty/xdiff/xdiffi.h
  mercurial/thirdparty/xdiff/xutils.c
  mercurial/thirdparty/xdiff/xutils.h

CHANGE DETAILS

diff --git a/mercurial/thirdparty/xdiff/xutils.h 
b/mercurial/thirdparty/xdiff/xutils.h
--- a/mercurial/thirdparty/xdiff/xutils.h
+++ b/mercurial/thirdparty/xdiff/xutils.h
@@ -38,8 +38,6 @@
 int xdl_num_out(char *out, long val);
 int xdl_emit_hunk_hdr(long s1, long c1, long s2, long c2,
                      const char *func, long funclen, xdemitcb_t *ecb);
-int xdl_fall_back_diff(xdfenv_t *diff_env, xpparam_t const *xpp,
-                      int line1, int count1, int line2, int count2);
 
 
 
diff --git a/mercurial/thirdparty/xdiff/xutils.c 
b/mercurial/thirdparty/xdiff/xutils.c
--- a/mercurial/thirdparty/xdiff/xutils.c
+++ b/mercurial/thirdparty/xdiff/xutils.c
@@ -241,34 +241,3 @@
 
        return 0;
 }
-
-int xdl_fall_back_diff(xdfenv_t *diff_env, xpparam_t const *xpp,
-               int line1, int count1, int line2, int count2)
-{
-       /*
-        * This probably does not work outside Git, since
-        * we have a very simple mmfile structure.
-        *
-        * Note: ideally, we would reuse the prepared environment, but
-        * the libxdiff interface does not (yet) allow for diffing only
-        * ranges of lines instead of the whole files.
-        */
-       mmfile_t subfile1, subfile2;
-       xdfenv_t env;
-
-       subfile1.ptr = (char *)diff_env->xdf1.recs[line1 - 1]->ptr;
-       subfile1.size = diff_env->xdf1.recs[line1 + count1 - 2]->ptr +
-               diff_env->xdf1.recs[line1 + count1 - 2]->size - subfile1.ptr;
-       subfile2.ptr = (char *)diff_env->xdf2.recs[line2 - 1]->ptr;
-       subfile2.size = diff_env->xdf2.recs[line2 + count2 - 2]->ptr +
-               diff_env->xdf2.recs[line2 + count2 - 2]->size - subfile2.ptr;
-       if (xdl_do_diff(&subfile1, &subfile2, xpp, &env) < 0)
-               return -1;
-
-       memcpy(diff_env->xdf1.rchg + line1 - 1, env.xdf1.rchg, count1);
-       memcpy(diff_env->xdf2.rchg + line2 - 1, env.xdf2.rchg, count2);
-
-       xdl_free_env(&env);
-
-       return 0;
-}
diff --git a/mercurial/thirdparty/xdiff/xdiffi.h 
b/mercurial/thirdparty/xdiff/xdiffi.h
--- a/mercurial/thirdparty/xdiff/xdiffi.h
+++ b/mercurial/thirdparty/xdiff/xdiffi.h
@@ -56,9 +56,5 @@
 void xdl_free_script(xdchange_t *xscr);
 int xdl_emit_diff(xdfenv_t *xe, xdchange_t *xscr, xdemitcb_t *ecb,
                  xdemitconf_t const *xecfg);
-int xdl_do_patience_diff(mmfile_t *mf1, mmfile_t *mf2, xpparam_t const *xpp,
-               xdfenv_t *env);
-int xdl_do_histogram_diff(mmfile_t *mf1, mmfile_t *mf2, xpparam_t const *xpp,
-               xdfenv_t *env);
 
 #endif /* #if !defined(XDIFFI_H) */
diff --git a/mercurial/thirdparty/xdiff/xdiff.h 
b/mercurial/thirdparty/xdiff/xdiff.h
--- a/mercurial/thirdparty/xdiff/xdiff.h
+++ b/mercurial/thirdparty/xdiff/xdiff.h
@@ -41,14 +41,6 @@
  * (a1, a2 - a1, b1, b2 - b1) hunks */
 #define XDL_EMIT_BDIFFHUNK (1 << 4)
 
-#define XDL_MMB_READONLY (1 << 0)
-
-#define XDL_MMF_ATOMIC (1 << 0)
-
-#define XDL_BDOP_INS 1
-#define XDL_BDOP_CPY 2
-#define XDL_BDOP_INSB 3
-
 /* merge simplification levels */
 #define XDL_MERGE_MINIMAL 0
 #define XDL_MERGE_EAGER 1
@@ -75,10 +67,6 @@
 
 typedef struct s_xpparam {
        unsigned long flags;
-
-       /* See Documentation/diff-options.txt. */
-       char **anchors;
-       size_t anchors_nr;
 } xpparam_t;
 
 typedef struct s_xdemitcb {
@@ -101,10 +89,6 @@
        xdl_emit_hunk_consume_func_t hunk_func;
 } xdemitconf_t;
 
-typedef struct s_bdiffparam {
-       long bsize;
-} bdiffparam_t;
-
 
 #define xdl_malloc(x) malloc(x)
 #define xdl_free(ptr) free(ptr)
diff --git a/mercurial/cext/bdiff.c b/mercurial/cext/bdiff.c
--- a/mercurial/cext/bdiff.c
+++ b/mercurial/cext/bdiff.c
@@ -278,8 +278,6 @@
 
        xpparam_t xpp = {
            XDF_INDENT_HEURISTIC, /* flags */
-           NULL,                 /* anchors */
-           0,                    /* anchors_nr */
        };
        xdemitconf_t xecfg = {
            0,                  /* ctxlen */



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