Maintenance Ruby 3.4 gets fixes, but no new features. Switch to Ruby 4.0 →
instance method
Enumerator::Chain#size
() -> (::Integer | ::Float)?
obj.size → int, Float::INFINITY or nil
enumerator.c
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static VALUE
enum_chain_size(VALUE obj)
{
return enum_chain_total_size(enum_chain_ptr(obj)->enums);
}
Returns the total size of the enumerator chain calculated by summing up the size of each enumerable in the chain. If any of the enumerables reports its size as nil or Float::INFINITY, that value is returned as the total size.