Flowdock
method

instance_eval

Importance_2
v1_8_6_287 - Show latest stable - 0 notes - Class: Object
instance_eval(...) public

Evaluates a string containing Ruby source code, or the given block, within the context of the receiver (obj). In order to set the context, the variable self is set to obj while the code is executing, giving the code access to obj’s instance variables. In the version of instance_eval that takes a String, the optional second and third parameters supply a filename and starting line number that are used when reporting compilation errors.

   class Klass
     def initialize
       @secret = 99
     end
   end
   k = Klass.new
   k.instance_eval { @secret }   #=> 99
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