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reset bound if the size is 0.

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* hash.c (RHASH_AR_TABLE_SIZE_DEC): generally, we need to check all
  entries to calculate exact "bound" in ar_table, but if size == 0,
  we can clear bound because there are no active entries.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66843 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
ko1 2019-01-17 07:52:47 +00:00
parent 07298ea209
commit 367fdd1aee
1 changed files with 15 additions and 5 deletions
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20
hash.c
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@ -554,11 +554,21 @@ hash_ar_table_set(VALUE hash, ar_table *ar)
} while (0)
#define RHASH_AR_TABLE_SIZE_INC(h) HASH_AR_TABLE_SIZE_ADD(h, 1)
#define RHASH_AR_TABLE_SIZE_DEC(h) do { \
HASH_ASSERT(RHASH_AR_TABLE_P(h)); \
RHASH_AR_TABLE_SIZE_SET((h), RHASH_AR_TABLE_SIZE(h) - 1); \
hash_verify(h); \
} while (0)
static inline void
RHASH_AR_TABLE_SIZE_DEC(VALUE h) {
HASH_ASSERT(RHASH_AR_TABLE_P(h));
int new_size = RHASH_AR_TABLE_SIZE(h) - 1;
if (new_size != 0) {
RHASH_AR_TABLE_SIZE_SET(h, new_size);
}
else {
RHASH_AR_TABLE_SIZE_SET(h, 0);
RHASH_AR_TABLE_BOUND_SET(h, 0);
}
hash_verify(h);
}
#define RHASH_AR_TABLE_CLEAR(h) do { \
RBASIC(h)->flags &= ~RHASH_AR_TABLE_SIZE_MASK; \