gistfile1.rb

# thanks to railscasts:
# http://railscasts.com/episodes/48-console-tricks-revised?view=comments

# add this to your ~/.irbrc file

class Object

  # look up source location of a method
  def sl(method_name)
    self.method(method_name).source_location
  end

  # macvim
  def mvim(method_name)
    file, line = sl(method_name)
    `mvim #{file} +#{line}`
  end

  # sublime text
  def subl(method_name)
    file, line = sl(method_name)
    `subl #{file}:#{line}`
  end

  # textmate
  def mate(method_name)
    file, line = sl(method_name)
    `mate '#{file}' -l #{line}`
  end
end

# examples:
# helper.sl(:link_to) # show file name and line number of the source code for the link_to helper method
# helper.mate(:link_to) # opens the link_to helper definition in textmate