Bug #6157: Enumerable::Lazy#select does not handle multiple yield arguments

• Status: Closed
• Assignee: -
• Target version: -
• ruby -v: ruby 2.0.0dev (2012-03-15 trunk 35028) [x86_64-darwin11.3.0]

[dkubb (Dan Kubb)]

When the #each method yields more than one argument, Enumerable::Lazy#select only accepts the first argument, e.g.:

class MultiYield
include Enumerable
def each
yield 1, 2, 3
end
end

multi = MultiYield.new
multi.lazy.select { |e| e == [1, 2, 3] }.to_a # => []

The above code will not match. "e" will be equal to 1, rather than [1, 2, 3].

For reference, here is the non-lazy version, which matches the expected values:

multi = MultiYield.new
multi.select { |e| e == [1, 2, 3] }.to_a # => [[1, 2, 3]]

[shugo (Shugo Maeda)]

• Status changed from Open to Closed

Dan Kubb wrote:

When the #each method yields more than one argument, Enumerable::Lazy#select only accepts the first argument, e.g.:

The bug has already been fixed in r35043. Please try the latest revision.