Issue #9667 has been updated by Nobuyoshi Nakada.


`test/rubygems/test_gem.rb` fails at `untaint`ing `__FILE__`, when parallel test.

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Feature #9667: Optimization of __FILE__ and __dir__
https://bugs.ruby-lang.org/issues/9667#change-45921

* Author: Tsuyoshi Sawada
* Status: Open
* Priority: Normal
* Assignee: 
* Category: 
* Target version: 
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In the same spirit as the string literal followed by `freeze` is optimized, I think `__FILE__` and `__dir__` should be optimized. Currently, they return different object id each time they are called.

    __FILE__.object_id # => 70183725179420
    __FILE__.object_id # => 70183725129020
    ...

I propose them to be optimized so that they are only created once per occurrence.

    __FILE__.object_id # => 70183725179420
    __FILE__.object_id # => 70183725179420
    ...



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