Ruby Issue Tracking System

01/11/2017

12:40 AM Ruby Feature #13118: Array#at(*indexes); Array#at([indexes])

Well, I am an idiot. Read through the array spec twice and missed it both times. Please close. crb002 (Chad Brewbaker)

01/10/2017

02:10 PM Ruby Bug #12924: Fiddle::TestFunction#test_nogvl_poll fails on macOS 10.12-10.12.1 Sierra

Close? Seems to be fixed. OSX Sierra introduced breaking changes for loading dynamic libraries. Haskell 8 was broken until they released the Darwin source in late November 2016, and Valgrind is still broken on OSX Sierra.
$ sw_vers
Pr... crb002 (Chad Brewbaker)

01:52 PM Ruby Feature #13118 (Closed): Array#at(*indexes); Array#at([indexes])

It is useful to have Array return a repeated permutation. Rather than add another method, we could overload Array#at to take multiple indexes.
~~~ruby
a = [ "a", "b", "c", "d", "e" ]
a.at(0) #=> "a"
a.at(-1) #=> "e"
#New st... crb002 (Chad Brewbaker)

01:29 PM Ruby Feature #12854: Proc#curry should return an instance of the class, not Proc

Another pattern is Proc#multilens(tin, lenses, tout); where "tin" is a transformation from the input argument list to lenses, "lenses" are the intermediate functions, and "tout"is a mapping from the intermediate functions to an output ar... crb002 (Chad Brewbaker)

02:06 AM Ruby Feature #12854: Proc#curry should return an instance of the class, not Proc

Defining complex functions with curry would be nontrivial:
~~~ ruby
double = ->(a)(a+a)
g = ->(a,b,c){ f.call(1,c, double.call(a))}
~~~
I suggest adding Proc#trans and Proc#lens.
Proc#trans applies a transformation (repeated ... crb002 (Chad Brewbaker)