Class Module
In: lib/rake.rb
Parent: Object

Rake extensions to Module.

Methods

External Aliases

const_missing -> rake_original_const_missing
  Rename the original handler to make it available.

Public Instance methods

Check for deprecated uses of top level (i.e. in Object) uses of Rake class names. If someone tries to reference the constant name, display a warning and return the proper object. Using the —classic-namespace command line option will define these constants in Object and avoid this handler.

[Source]

      # File lib/rake.rb, line 2451
2451:   def const_missing(const_name)
2452:     case const_name
2453:     when :Task
2454:       Rake.application.const_warning(const_name)
2455:       Rake::Task
2456:     when :FileTask
2457:       Rake.application.const_warning(const_name)
2458:       Rake::FileTask
2459:     when :FileCreationTask
2460:       Rake.application.const_warning(const_name)
2461:       Rake::FileCreationTask
2462:     when :RakeApp
2463:       Rake.application.const_warning(const_name)
2464:       Rake::Application
2465:     else
2466:       rake_original_const_missing(const_name)
2467:     end
2468:   end

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

[Source]

    # File lib/rake.rb, line 62
62:   def rake_extension(method)
63:     if instance_methods.include?(method.to_s) || instance_methods.include?(method.to_sym)
64:       $stderr.puts "WARNING: Possible conflict with Rake extension: #{self}##{method} already exists"
65:     else
66:       yield
67:     end
68:   end

[Validate]