BlankSlate provides an abstract base class with no predefined methods (except for __send__ and __id__). BlankSlate is useful as a base class when writing classes that depend upon method_missing (e.g. dynamic proxies).
Hide the method named name in the BlankSlate class. Don’t hide instance_eval or any method beginning with “__”.
# File lib/blankslate.rb, line 46 def hide(name) warn_level = $VERBOSE $VERBOSE = nil if instance_methods.include?(name._blankslate_as_name) && name !~ /^(__|instance_eval$)/ @hidden_methods ||= {} @hidden_methods[name.to_sym] = instance_method(name) undef_method name end ensure $VERBOSE = warn_level end
Redefine a previously hidden method so that it may be called on a blank slate object.
# File lib/blankslate.rb, line 66 def reveal(name) hidden_method = find_hidden_method(name) fail "Don't know how to reveal method '#{name}'" unless hidden_method define_method(name, hidden_method) end
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