11         struct object_id base_oid;
 
  12         struct index_state *base;
 
  13         struct ewah_bitmap *delete_bitmap;
 
  14         struct ewah_bitmap *replace_bitmap;
 
  15         struct cache_entry **saved_cache;
 
  16         unsigned int saved_cache_nr;
 
  17         unsigned int nr_deletions;
 
  18         unsigned int nr_replacements;
 
  22 struct split_index *init_split_index(struct index_state *istate);
 
  23 void save_or_free_index_entry(struct index_state *istate, struct cache_entry *ce);
 
  24 void replace_index_entry_in_base(struct index_state *istate,
 
  25                                  struct cache_entry *old,
 
  26                                  struct cache_entry *new_entry);
 
  27 int read_link_extension(struct index_state *istate,
 
  28                         const void *data, unsigned long sz);
 
  29 int write_link_extension(struct strbuf *sb,
 
  30                          struct index_state *istate);
 
  31 void move_cache_to_base_index(struct index_state *istate);
 
  32 void merge_base_index(struct index_state *istate);
 
  33 void prepare_to_write_split_index(struct index_state *istate);
 
  34 void finish_writing_split_index(struct index_state *istate);
 
  35 void discard_split_index(struct index_state *istate);
 
  36 void add_split_index(struct index_state *istate);
 
  37 void remove_split_index(struct index_state *istate);