From: ronnie@...
Date: 2016-11-13T21:43:01+00:00
Subject: [ruby-core:78110] [Ruby trunk Bug#12930] instance_eval, instance_exec raises TypeError on a frozen String

Issue #12930 has been reported by Akira Matsuda.

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Bug #12930: instance_eval, instance_exec raises TypeError on a frozen String
https://bugs.ruby-lang.org/issues/12930

* Author: Akira Matsuda
* Status: Open
* Priority: Normal
* Assignee: Nobuyoshi Nakada
* ruby -v: ruby 2.4.0dev (2016-11-13 trunk 56767) [x86_64-darwin15]
* Backport: 2.1: UNKNOWN, 2.2: UNKNOWN, 2.3: UNKNOWN
----------------------------------------
~~~
% ruby -ve 'p "".freeze.instance_eval "size"'
ruby 2.4.0dev (2016-11-13 trunk 56767) [x86_64-darwin15]
-e:1:in `instance_eval': can't define singleton (TypeError)
~~~

since 56747



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