Class: Module

Inherits:
Object
  • Object
show all
Defined in:
lib/rake/ext/core.rb,
lib/rake/ext/module.rb

Overview

Core extension library

Instance Method Summary collapse

Instance Method Details

#const_missing(const_name) ⇒ Object

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.


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# File 'lib/rake/ext/module.rb', line 21

def const_missing(const_name)
  case const_name
  when :Task
    Rake.application.const_warning(const_name)
    Rake::Task
  when :FileTask
    Rake.application.const_warning(const_name)
    Rake::FileTask
  when :FileCreationTask
    Rake.application.const_warning(const_name)
    Rake::FileCreationTask
  when :RakeApp
    Rake.application.const_warning(const_name)
    Rake::Application
  else
    rake_original_const_missing(const_name)
  end
end

#rake_extension(method) ⇒ Object

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

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# File 'lib/rake/ext/core.rb', line 20

def rake_extension(method)
  if method_defined?(method)
    $stderr.puts "WARNING: Possible conflict with Rake extension: #{self}##{method} already exists"
  else
    yield
  end
end

#rake_original_const_missingObject

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. Rename the original handler to make it available.


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# File 'lib/rake/ext/module.rb', line 14

def const_missing(const_name)
  case const_name
  when :Task
    Rake.application.const_warning(const_name)
    Rake::Task
  when :FileTask
    Rake.application.const_warning(const_name)
    Rake::FileTask
  when :FileCreationTask
    Rake.application.const_warning(const_name)
    Rake::FileCreationTask
  when :RakeApp
    Rake.application.const_warning(const_name)
    Rake::Application
  else
    rake_original_const_missing(const_name)
  end
end