From: "tenderlovemaking (Aaron Patterson)" <aaron@...>
Date: 2012-05-24T10:31:56+09:00
Subject: [ruby-core:45203] [ruby-trunk - Bug #6487][Open] io_strip_bom does not take in to account short files


Issue #6487 has been reported by tenderlovemaking (Aaron Patterson).

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Bug #6487: io_strip_bom does not take in to account short files
https://bugs.ruby-lang.org/issues/6487

Author: tenderlovemaking (Aaron Patterson)
Status: Open
Priority: Normal
Assignee: 
Category: 
Target version: 
ruby -v: ruby 1.9.3p125 (2012-02-16 revision 34643) [x86_64-darwin11.3.0]


If a file is too short, io_strip_bom will raise an exception because it's trying to convert nil to an integer.

Here is an example:

irb(main):001:0> File.open('foo', 'wb') {}
=> nil
irb(main):002:0> File.new('foo', 'r:bom|utf-8').close
TypeError: no implicit conversion from nil to integer
	from (irb):2:in `initialize'
	from (irb):2:in `new'
	from (irb):2
	from /Users/aaron/.local/bin/irb:12:in `<main>'
irb(main):003:0>

I've attached tests, but I'm not sure the best way to fix.  It seems like a pain. :-/



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