method

rake_extension

v2_2_9 - Show latest stable - Class: Module

rake_extension(method)

public

Check for an existing method in the current class before extending. If the method already exists, then a warning is printed and the extension is not added. Otherwise the block is yielded and any definitions in the block will take effect.

Usage:

class String
  rake_extension("xyz") do
    def xyz
      ...
    end
  end
end

# File lib/rake/ext/core.rb, line 17
  def rake_extension(method) # :nodoc:
    if method_defined?(method)
      $stderr.puts "WARNING: Possible conflict with Rake extension: " +
        "#{self}##{method} already exists"
    else
      yield
    end
  end

rake_extension

Related methods