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refactor(undo): don't assume curbuf in u_compute_hash

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This commit is contained in:
Thomas Vigouroux
2021-07-09 15:10:49 +02:00
parent 9132b76da6
commit ff53c5585f
5 changed files with 20 additions and 24 deletions
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14
src/nvim/undo.c
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@@ -631,18 +631,20 @@ int u_savecommon(buf_T *buf,
static char_u e_not_open[] = N_("E828: Cannot open undo file for writing: %s");
/*
* Compute the hash for the current buffer text into hash[UNDO_HASH_SIZE].
*/
void u_compute_hash(char_u *hash)
/// Compute the hash for a buffer text into hash[UNDO_HASH_SIZE].
///
/// @param[in] buf The buffer used to compute the hash
/// @param[in] hash Array of size UNDO_HASH_SIZE in which to store the value of
/// the hash
void u_compute_hash(buf_T *buf, char_u *hash)
{
context_sha256_T ctx;
linenr_T lnum;
char_u *p;
sha256_start(&ctx);
for (lnum = 1; lnum <= curbuf->b_ml.ml_line_count; ++lnum) {
p = ml_get(lnum);
for (lnum = 1; lnum <= buf->b_ml.ml_line_count; lnum++) {
p = ml_get_buf(buf, lnum, false);
sha256_update(&ctx, p, (uint32_t)(STRLEN(p) + 1));
}
sha256_finish(&ctx, hash);