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aprescott/local_variable_references.rb

Created April 5, 2011 12:49
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Finding local variable references within the current scope
Raw
local_variable_references.rb
>> local_variables
=> ["_"]
>> a = ""
=> ""
>> local_variables
=> ["_", "a"]
>> b = binding; local_variables.select { |var| b.eval(var).object_id == a.object_id }
=> ["a"]
>> x = a
=> ""
>> local_variables
=> ["_", "a", "b", "x"]
>> b = binding; local_variables.select { |var| b.eval(var).object_id == a.object_id }
=> ["a", "x"]
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