rsl/gist:430212

Created June 8, 2010 15:44

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	>> case "String".class
	>> when String
	>> puts "I'm a string"
	>> else
	?> puts "I can't tell what I am"
	>> end
	I can't tell what I am

caius commented Jun 8, 2010

case calls .class on the original object when you give it a class in a when statement.

>> case "String".class
>>   when String
>>   "I'm a string"
>>   when Class
>>   "I'm a class"
>>   else
?>     "dunno"
>>   end
=> "I'm a class"
>> "String".class.class
=> Class

ujh commented Jun 8, 2010

irb(main):002:0> "string".class === String
=> false

Author

rsl commented Jun 8, 2010

interesting. i think i've run into this before but couldn't remember the solution.

raggi commented Jun 8, 2010

@ujh case works the other way around, your example should read String === "string".class. @calus is correct.

ujh commented Jun 8, 2010

Whoops ;)

hardbap commented Jun 8, 2010

@raggi String === "string".class is also wrong. It should be String === "string".

hardbap commented Jun 8, 2010

@raggi - ooops, misread your comment. sorry about that :)

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