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Bug #14015 ยป yield_arity.rb

marcandre (Marc-Andre Lafortune), 10/14/2017 08:25 PM

 
TEST = %i[each find sort_by grep grep_v count detect find_index find_all select reject
map flat_map partition group_by all? any? one? none?
min_by max_by minmax_by reverse_each take_while drop_while sum uniq]
match_all = Object.new; def match_all.===(x); true; end
ARGS = {grep: match_all, grep_v: /never_match/}
class << o = Object.new
include Enumerable
def each
return to_enum unless block_given?
yield :a, 1
end
def foo(a,b)
end
end
m = o.method(:foo)
ok = [{a: 1}, o, {a: 1}.each, o.each].map do |receiver|
TEST.select do |method|
(receiver.send(method, *ARGS[method], &m); :ok) rescue false
end
end
labels = ['Hash', 'Custom yield', 'Hash#each', 'Custom yield#each']

puts "Takes arity 2 blocks in Ruby #{RUBY_VERSION}", *labels.zip(ok.map{|l| l.join(', ')}).flatten
    (1-1/1)