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diff --color-moved: stop clearing potential moved blocks

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moved_block_clear() was introduced in 74d156f4a1 ("diff
--color-moved-ws: fix double free crash", 2018-10-04) to free the
memory that was allocated when initializing a potential moved
block. However since 21536d077f ("diff --color-moved-ws: modify
allow-indentation-change", 2018-11-23) initializing a potential moved
block no longer allocates any memory. Up until the last commit we were
relying on moved_block_clear() to set the `match` pointer to NULL when
a block stopped matching, but since that commit we do not clear a
moved block that does not match so it does not make sense to clear
them elsewhere.

Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Phillip Wood 2021-12-09 10:30:06 +00:00 committed by Junio C Hamano
parent 0e488f1732
commit eec7f53b31
1 changed files with 0 additions and 11 deletions
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11
diff.c
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@ -807,11 +807,6 @@ struct moved_block {
int wsd; /* The whitespace delta of this block */
};
static void moved_block_clear(struct moved_block *b)
{
memset(b, 0, sizeof(*b));
}
#define INDENT_BLANKLINE INT_MIN
static void fill_es_indent_data(struct emitted_diff_symbol *es)
@ -1128,8 +1123,6 @@ static void mark_color_as_moved(struct diff_options *o,
}
if (pmb_nr && (!match || l->s != moved_symbol)) {
int i;
if (!adjust_last_block(o, n, block_length) &&
block_length > 1) {
/*
@ -1139,8 +1132,6 @@ static void mark_color_as_moved(struct diff_options *o,
match = NULL;
n -= block_length;
}
for(i = 0; i < pmb_nr; i++)
moved_block_clear(&pmb[i]);
pmb_nr = 0;
block_length = 0;
flipped_block = 0;
@ -1193,8 +1184,6 @@ static void mark_color_as_moved(struct diff_options *o,
}
adjust_last_block(o, n, block_length);
for(n = 0; n < pmb_nr; n++)
moved_block_clear(&pmb[n]);
free(pmb);
}