=begin
Array#permutation and #combination will yield to the given block, or else return an enumerator.
I believe Array#product should have been designed the same way.
Returning an enumerator today would break compatibility though.
I suggest that Array#product(&block) yields to the block and returns self. This maintains compatibility while making it possible to produce an enumerable with my_array.to_enum(:product, ...) or to avoid building an intermediate array.
I could implement this feature in time for code freeze.
=end
Array#permutation and #combination will yield to the given block, or else return an enumerator.
I believe Array#product should have been designed the same way.
Returning an enumerator today would break compatibility though.
I suggest that Array#product(&block) yields to the block and returns self. This maintains compatibility while making it possible to produce an enumerable with my_array.to_enum(:product, ...) or to avoid building an intermediate array.
Agreed!
In fact, I suggested the similar change to let Array#product
return an Enumerator. [ruby-dev:39277]
Of course, it has a compatibility problem, and matz himself
suggested exactly the same change as you. [ruby-dev:39306]
Array#permutation and #combination will yield to the given block, or else return an enumerator.
I believe Array#product should have been designed the same way.
Returning an enumerator today would break compatibility though.
I suggest that Array#product(&block) yields to the block and returns self. This maintains compatibility while making it possible to produce an enumerable with my_array.to_enum(:product, ...) or to avoid building an intermediate array.
Agreed!
In fact, I suggested the similar change to let Array#product
return an Enumerator. ?[ruby-dev:39277]
Of course, it has a compatibility problem, and matz himself
suggested exactly the same change as you. ?[ruby-dev:39306]
=begin
This issue was solved with changeset r27200.
Marc-Andre, thank you for reporting this issue.
Your contribution to Ruby is greatly appreciated.
May Ruby be with you.
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