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Feature #15842 ยป delegate-class-block.patch

jeremyevans0 (Jeremy Evans), 05/11/2019 11:37 PM

View differences:

lib/delegate.rb
# 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
......
# # ...
# end
#
def DelegateClass(superclass)
def DelegateClass(superclass, &block)
klass = Class.new(Delegator)
methods = superclass.instance_methods
methods -= ::Delegator.public_api
......
klass.define_singleton_method :protected_instance_methods do |all=true|
super(all) | superclass.protected_instance_methods
end
klass.module_eval(&block) if block
return klass
end
test/test_delegate.rb
assert_equal(:m, obj.m, "[ruby-dev:33116]")
end
def test_delegate_class_block
klass = DelegateClass(Array) do
alias foo first
end
assert_equal(1, klass.new([1]).foo)
end
def test_systemcallerror_eq
e = SystemCallError.new(0)
assert((SimpleDelegator.new(e) == e) == (e == SimpleDelegator.new(e)), "[ruby-dev:34808]")
    (1-1/1)