# 1.8.4 Struct bug

**URL:** <https://www.ruby-forum.com/t/1-8-4-struct-bug/51049>\
**Category:** Ruby\
**Created:** [December 24, 2005, 8:48pm UTC](https://www.ruby-forum.com/t/1-8-4-struct-bug/51049 "2005-12-24T20:48:42Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![jamis](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/f17d59/32.png) [@jamis](https://www.ruby-forum.com/u/jamis)\
**Post date:** [December 24, 2005, 8:48pm UTC](https://www.ruby-forum.com/t/1-8-4-struct-bug/51049/1 "2005-12-24T20:48:42Z")

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Found the following while making sure Net::SSH works with 1.8.4:

irb(main):001:0\> Struct.new(:valid?).new.valid?  
NoMethodError: undefined method `valid?’ for #\<struct #\<Class:  
0x535994\> :valid?=nil\>  
from (irb):1

This worked in 1.8.2, at least. Is this an intentional change? (This  
only bites me in the unit tests for Net::SSH, and I can easily work  
around it, just wanted to make sure problem this was known.)

- Jamis

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<div class="post-metadata">

**Author:** ![jamis](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/f17d59/32.png) [@jamis](https://www.ruby-forum.com/u/jamis)\
**Post date:** [December 24, 2005, 9:33pm UTC](https://www.ruby-forum.com/t/1-8-4-struct-bug/51049/2 "2005-12-24T21:33:49Z")

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On 12/25/05, Jamis B. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote:

> - Jamis

Hi,

FWIW, it seems to be broken since 1.8.3.

$ ruby -ve ‘Struct.new(:valid?).new.valid?’  
ruby 1.8.3 (2005-09-21) [x86\_64-linux]  
-e:1: undefined method `valid?’ for #\<struct #Class:0x2aaaab3e8160  
:“valid?”=nil\> (NoMethodError)

I couldn’t find any mention about this behavior both in [1.8.3  
changes](http://www.ruby-lang.org/ja/man/?cmd=view;name=ruby+1.8.3+feature)  
and [1.8.4 changes](http://www.ruby-lang.org/ja/man/?cmd=view;name=ruby+1.8.4+feature).