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author | glass <glass@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2017-10-22 00:57:46 +0000 |
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committer | glass <glass@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2017-10-22 00:57:46 +0000 |
commit | 2ec29f3f7fa0c3e21b666d70312f4f0959346f1c (patch) | |
tree | d40463d80447cf602b75d2c446eb25f98f40b5a3 /hash.c | |
parent | 25a7dfc6d7c26b19d4a8ece59470a71f399d18df (diff) | |
download | bundler-2ec29f3f7fa0c3e21b666d70312f4f0959346f1c.tar.gz |
hash.c: optimize Hash#compare_by_identity
hash.c (rb_hash_compare_by_id): avoid unnecessary allocation of st_table.
formerly, st_table created in rb_hash_modify() was not used and replaced immediately.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60337 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'hash.c')
-rw-r--r-- | hash.c | 12 |
1 files changed, 9 insertions, 3 deletions
@@ -2899,10 +2899,16 @@ rb_hash_compact_bang(VALUE hash) static VALUE rb_hash_compare_by_id(VALUE hash) { + st_table *identtable; if (rb_hash_compare_by_id_p(hash)) return hash; - rb_hash_modify(hash); - RHASH(hash)->ntbl->type = &identhash; - rb_hash_rehash(hash); + rb_hash_modify_check(hash); + + identtable = rb_init_identtable_with_size(RHASH_SIZE(hash)); + rb_hash_foreach(hash, rb_hash_rehash_i, (VALUE)identtable); + if (RHASH(hash)->ntbl) + st_free_table(RHASH(hash)->ntbl); + RHASH(hash)->ntbl = identtable; + return hash; } |