From: prijutme4ty@...
Date: 2014-02-15T05:24:22+00:00
Subject: [ruby-core:60752] [ruby-trunk - Bug #9520] [Open] Arity of a Proc obtained by Symbol#to_proc

Issue #9520 has been reported by Ilya Vorontsov.

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Bug #9520: Arity of a Proc obtained by Symbol#to_proc
https://bugs.ruby-lang.org/issues/9520

* Author: Ilya Vorontsov
* Status: Open
* Priority: Normal
* Assignee: 
* Category: 
* Target version: 
* ruby -v: 2.1
* Backport: 1.9.3: UNKNOWN, 2.0.0: UNKNOWN, 2.1: UNKNOWN
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I'm not sure is it a bug, but I find this behavior wrong.
:to_s.to_proc.arity # => -1
but isn't :to_s.to_proc is the same as ->(x){x.to_s} whose arity is 1? 



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