Use faster any_hash logic in rb_hash #4916
Merged
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From the documentation of rb_obj_hash:
So if you override, say,
Integer#hash
it won't be used fromrb_hash_aref
and similar. This avoids method lookups in many common cases.This commit uses the same optimization in
rb_hash
, a method used internally and in the C API to get the hash value of an object. Usually this is used to build the hash of an object based on its elements. Previously it would always do a method lookup for 'hash'.This is primarily intended to speed up hashing of Arrays and Hashes, which call
rb_hash
for each element.