git-commit-vandalism/contrib/coccinelle/hashmap.cocci
Eric Wong 12878c8351 coccicheck: detect hashmap_entry.hash assignment
Assigning hashmap_entry.hash manually leaves hashmap_entry.next
uninitialized, which can be dangerous once the hashmap_entry is
inserted into a hashmap.   Detect those assignments and use
hashmap_entry_init, instead.

Signed-off-by: Eric Wong <e@80x24.org>
Reviewed-by: Derrick Stolee <stolee@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-10-07 10:20:09 +09:00

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@ hashmap_entry_init_usage @
expression E;
struct hashmap_entry HME;
@@
- HME.hash = E;
+ hashmap_entry_init(&HME, E);
@@
identifier f !~ "^hashmap_entry_init$";
expression E;
struct hashmap_entry *HMEP;
@@
f(...) {<...
- HMEP->hash = E;
+ hashmap_entry_init(HMEP, E);
...>}