Class: Module

Relationships & Source Files
Inherits:	Object
Defined in:	lib/rake/ext/core.rb

Instance Method Summary

#rake_extension(method) Internal use only

Check for an existing method in the current class before extending.

Instance Method Details

#rake_extension(method)

This method is for internal use only.

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

[ GitHub ]

# File 'lib/rake/ext/core.rb', line 18


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