From: Run Paint Run Run <redmine@...>
Date: 2009-10-27T04:21:41+09:00
Subject: [ruby-core:26333] [Bug #2281] Class#inherited Produces Misleading Error Message

Bug #2281: Class#inherited Produces Misleading Error Message
http://redmine.ruby-lang.org/issues/show/2281

Author: Run Paint Run Run
Status: Open, Priority: Low
Category: core
ruby -v: ruby 1.9.2dev (2009-10-25 trunk 25456) [i686-linux]

$ cat -n /tmp/inherited.rb 
     1	def Object.inherited
     2	end
     3	
     4	class C
     5	end
  $ ruby -vw /tmp/inherited.rb 
  ruby 1.9.2dev (2009-10-25 trunk 25456) [i686-linux]
  /tmp/inherited.rb:4:in `<main>': wrong number of arguments (1 for 0) (ArgumentError)

If this scenario must raise an exception, could it report the line number of the _inherited_ hook's definition and, preferably, the hook's name? It is undesirable for class definitions to be fatal. (I realise that this problem can be generalised to other callbacks).


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