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List:       ruby-core
Subject:    [ruby-core:66595] [ruby-trunk - Bug #10557] [Open] Block not given when the argument is a string
From:       bartosz () kopinski ! pl
Date:       2014-11-30 20:28:29
Message-ID: redmine.issue-10557.20141130202829.bed4e25a0ef38d37 () ruby-lang ! org
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Issue #10557 has been reported by Bartosz Kopinski.

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Bug #10557: Block not given when the argument is a string
https://bugs.ruby-lang.org/issues/10557

* Author: Bartosz Kopinski
* Status: Open
* Priority: Normal
* Assignee: 
* Category: 
* Target version: current: 2.2.0
* ruby -v: ruby 2.2.0dev (2014-11-30 trunk 48655) [x86_64-darwin14]
* Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN
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This seems really weird and random. Can anyone else confirm it's bug?

```ruby
class Klass
  def [](_)
    block_given?
  end
end

# ruby 2.1.5p273 (2014-11-13 revision 48405) [x86_64-darwin14.0]
Klass.new.[](nil){ }    # => true
Klass.new.[](0){ }      # => true
Klass.new.[](false){ }  # => true
Klass.new.[](''){ }     # => true

# ruby 2.2.0dev (2014-11-30 trunk 48655) [x86_64-darwin14]
Klass.new.[](nil){ }    # => true
Klass.new.[](0){ }      # => true
Klass.new.[](false){ }  # => true
Klass.new.[](''){ }     # => false
```



-- 
https://bugs.ruby-lang.org/
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