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git/contrib/coccinelle/free.cocci
Ævar Arnfjörð Bjarmason bf20fe4ca8 cocci: add and apply free_commit_list() rules
Add and apply coccinelle rules to remove "if (E)" before
"free_commit_list(E)", the function can accept NULL, and further
change cases where "E = NULL" followed to also be unconditionally.

The code changes in this commit were entirely made by the coccinelle
rule being added here, and applied with:

    make contrib/coccinelle/free.cocci.patch
    patch -p1 <contrib/coccinelle/free.cocci.patch

The only manual intervention here is that the the relevant code in
commit.c has been manually re-indented.

Suggested-by: Phillip Wood <phillip.wood123@gmail.com>
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-04-13 23:56:08 -07:00

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@@
expression E;
@@
- if (E)
(
free(E);
|
free_commit_list(E);
)
@@
expression E;
@@
- if (!E)
(
free(E);
|
free_commit_list(E);
)
@@
expression E;
@@
- free(E);
+ FREE_AND_NULL(E);
- E = NULL;
@@
expression E;
@@
- if (E)
- {
free_commit_list(E);
E = NULL;
- }
@@
expression E;
statement S;
@@
- if (E) {
+ if (E)
S
free_commit_list(E);
- }