Issue #6152 has been reported by Nobuhiro IMAI.
Bug #6152: Enumerator::Lazy#take
Author: Nobuhiro IMAI
Status: Open
Priority: Normal
Assignee:
Category:
Target version:
ruby -v: ruby 2.0.0dev (2012-03-16 trunk 35049) [x86_64-linux]
=begin
以下はテストにある Step クラスですが、
class Step
include Enumerable
attr_reader :current, :args
def initialize(enum)
@enum = enum
@current = nil
@args = nil
end
def each(*args)
@args = args
@enum.each{|i| @current = i; yield i}
end
end
a = Step.new(1…10)
a.take(5).first # => 1
a.current # => 5
a.lazy.take(5).first # => 1
a.current # => 1
a.take(5).first(5) # => [1, 2, 3, 4, 5]
a.current # => 5
a.lazy.take(5).first(5) # => [1, 2, 3, 4, 5]
a.current # => 5
a.take(5).to_a # => [1, 2, 3, 4, 5]
a.current # => 5
a.lazy.take(5).to_a # => [1, 2, 3, 4, 5]
a.current # => 6
最後の例で current が 6 まで進むのは正しいでしょうか?
=end