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Contents
%a{annotate:rdoc:skip}
class Object
# <!--
# rdoc-file=lib/delegate.rb
# - DelegateClass(superclass, &block)
# -->
# The primary interface to this library. Use to setup delegation when defining
# your class.
#
# class MyClass < DelegateClass(ClassToDelegateTo) # Step 1
# def initialize
# super(obj_of_ClassToDelegateTo) # Step 2
# end
# end
#
# or:
#
# MyClass = DelegateClass(ClassToDelegateTo) do # Step 1
# def initialize
# super(obj_of_ClassToDelegateTo) # Step 2
# end
# end
#
# Here's a sample of use from Tempfile which is really a File object with a few
# special rules about storage location and when the File should be deleted.
# That makes for an almost textbook perfect example of how to use delegation.
#
# class Tempfile < DelegateClass(File)
# # constant and class member data initialization...
#
# def initialize(basename, tmpdir=Dir::tmpdir)
# # build up file path/name in var tmpname...
#
# @tmpfile = File.open(tmpname, File::RDWR|File::CREAT|File::EXCL, 0600)
#
# # ...
#
# super(@tmpfile)
#
# # below this point, all methods of File are supported...
# end
#
# # ...
# end
#
def DelegateClass: (Class) -> Class
end
Version data entries
29 entries across 29 versions & 2 rubygems