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Contents
require 'delegate'
class Module
# Create a seperated method namespace.
#
# module T
# def t ; "HERE" ; end
# end
#
# class X
# namespace :test { include T }
# def t ; test.t ; end
# end
#
# X.new.t #=> "HERE"
#
# NOTE: This is not as functional as it ought be in that
# the instance variables of the object are not accessible
# within the namespace.
def namespace( name, &blk )
s = self
c = Class.new(SimpleDelegator, &blk)
c.class_eval { define_method(:initialize) { |s| super(s) } }
self.class_eval {
define_method( name ) {
instance_variable_set( "@#{name}", instance_variable_get( "@#{name}" ) || c.new(s) )
}
}
end
end
# _____ _
# |_ _|__ ___| |_
# | |/ _ \/ __| __|
# | | __/\__ \ |_
# |_|\___||___/\__|
#
=begin test
require 'test/unit'
class TCModule < Test::Unit::TestCase
class MockObject
namespace(:hope) {
def watch ; 'watch' ; end
}
end
def test_namespace
m = MockObject.new
assert_equal( 'watch', m.hope.watch )
end
end
=end
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20 entries across 20 versions & 1 rubygems