view mercurial/bdiff.h @ 37797:43221a57e22f stable

context: translate FilteredIndex/LookupError at repo[changeid] (API)

This partially backs out ecd3f6909184. It seems layering violation for
repo[changeid] to raise storage-level exceptions transparently. Otherwise,
we would have to rewrite callers to catch all of them.

  try:
      repo[rev_or_node]
  except (error.RepoLookupError, error.FilteredIndexError,
          error.FilteredLookupError):
      pass

This would also fix filectx._changectx(), which catches FilteredRepoLookupError
to fall back to the unfiltered path.

#ifndef _HG_BDIFF_H_
#define _HG_BDIFF_H_

#include "compat.h"

struct bdiff_line {
	int hash, n, e;
	ssize_t len;
	const char *l;
};

struct bdiff_hunk;
struct bdiff_hunk {
	int a1, a2, b1, b2;
	struct bdiff_hunk *next;
};

int bdiff_splitlines(const char *a, ssize_t len, struct bdiff_line **lr);
int bdiff_diff(struct bdiff_line *a, int an, struct bdiff_line *b, int bn,
               struct bdiff_hunk *base);
void bdiff_freehunks(struct bdiff_hunk *l);

#endif