From: Yukihiro Matsumoto <matz@...>
Date: 2011-12-12T06:06:58+09:00
Subject: [ruby-core:41596] Re: [ruby-trunk - Bug #5746][Open] Proc#curry too strict about lambda's arity.

Hi,

In message "Re: [ruby-core:41594] [ruby-trunk - Bug #5746][Open] Proc#curry too strict about lambda's arity."
    on Mon, 12 Dec 2011 02:08:08 +0900, Marc-Andre Lafortune <ruby-core@marc-andre.ca> writes:

|Currently, Proc#curry raises an error when you attempt to curry a lambda with optional (but limited) arguments:
|
|    l = ->(arg = 42) {}
|    l.curry(1) # => ArgumentError: wrong number of arguments (1 for 0)

In my opinion, #curry should not rely on #arity at all.  Even after
proposed fix, it accepts l.curry(3) which is wrong.  It should use
more reliable information such as #parameters.

							matz.