Bug #13336: Default Parameters don't work

• Status: Closed
• Assignee: -
• Target version: -
• ruby -v: 2.3.1
• Backport: 2.2: UNKNOWN, 2.3: UNKNOWN, 2.4: UNKNOWN

[[e-mail] (Herbert Bonaffini)]

def funny(a = true, b: nil)
  p a
end

funny([1,2,3]) # => [1,2,3]

funny({k:1}) # => in `funny': unknown keyword: k (ArgumentError)

[ko1 (Koichi Sasada)]

• Description updated (diff)

[ko1 (Koichi Sasada)]

• Assignee set to mame (Yusuke Endoh)

mame-san: what do you think about it?

[nobu (Nobuyoshi Nakada)]

• Description updated (diff)
• Assignee deleted (mame (Yusuke Endoh))

[mame (Yusuke Endoh)]

This is intended. If a method accepts keyword arguments and if its last argument is a hash object, it is considered for keyword arguments. If you want to pass a hash as the first parameter, you need to explicitly pass a hash for keyword arguments, i.e., funny({k: 1}, {}).

[hsbt (Hiroshi SHIBATA)]

• Related to Feature #14183: "Real" keyword argument added

[marcandre (Marc-Andre Lafortune)]

• Status changed from Open to Closed

This is a duplicate of #12717, so closing this.

[marcandre (Marc-Andre Lafortune)]

• Is duplicate of Bug #12717: Optional argument treated as kwarg added