IO#gets and StringIO#gets both throw exceptions when you pass in a limit in 1.9
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Key: JRUBY-5926
URL: https://jira.codehaus.org/browse/JRUBY-5926
Project: JRuby
Issue Type: Bug
Components: Core Classes/Modules, Ruby 1.9.2
Affects Versions: JRuby 1.6.3, JRuby 1.7
Environment: JRuby 1.6.3 and JRuby HEAD with Java 6 on OS X 10.6.8
Reporter: Ian Dees
Attachments:
0001-Support-byte-limits-in-IO-gets-and-StringIO-gets-in-.patch
(This ticket is related to JRUBY-5910, but is broader in scope.)
Ruby 1.9 allows passing a maximum byte count to IO#gets, either as the sole
argument or the second argument. The current implementation throws an
{{ArgumentError}}, {{TypeError}}, or {{NullPointerException}} when you pass in
a byte limit, depending on whether the underlying object is a RubyIO or a
RubyStringIO and on which position you pass the limit argument.
The attached patch has test cases and tweaks to RubyIO/RubyStringIO. There's
probably an opportunity to unify the approaches the two classes take towards
separators and encoding, but the current patch doesn't tackle that opportunity.
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