diff options
Diffstat (limited to 'lib/forwardable.rb')
| -rw-r--r-- | lib/forwardable.rb | 94 |
1 files changed, 0 insertions, 94 deletions
diff --git a/lib/forwardable.rb b/lib/forwardable.rb deleted file mode 100644 index b845f76ec4..0000000000 --- a/lib/forwardable.rb +++ /dev/null @@ -1,94 +0,0 @@ -# -# forwardable.rb - -# $Release Version: 1.1$ -# $Revision$ -# $Date$ -# by Keiju ISHITSUKA(keiju@ishitsuka.com) -# original definition by delegator.rb -# -- -# Usage: -# -# class Foo -# extend Forwardable -# -# def_delegators("@out", "printf", "print") -# def_delegators(:@in, :gets) -# def_delegator(:@contents, :[], "content_at") -# end -# f = Foo.new -# f.printf ... -# f.gets -# f.content_at(1) -# -# g = Goo.new -# g.extend SingleForwardable -# g.def_delegator("@out", :puts) -# g.puts ... -# -# - -module Forwardable - - @debug = nil - class<<self - attr_accessor :debug - end - - def def_instance_delegators(accessor, *methods) - for method in methods - def_instance_delegator(accessor, method) - end - end - - def def_instance_delegator(accessor, method, ali = method) - accessor = accessor.id2name if accessor.kind_of?(Integer) - method = method.id2name if method.kind_of?(Integer) - ali = ali.id2name if ali.kind_of?(Integer) - - module_eval(<<-EOS, "(__FORWARDABLE__)", 1) - def #{ali}(*args, &block) - begin - #{accessor}.__send__(:#{method}, *args, &block) - rescue Exception - $@.delete_if{|s| /^\\(__FORWARDABLE__\\):/ =~ s} unless Forwardable::debug - Kernel::raise - end - end - EOS - end - - alias def_delegators def_instance_delegators - alias def_delegator def_instance_delegator -end - -module SingleForwardable - def def_singleton_delegators(accessor, *methods) - for method in methods - def_singleton_delegator(accessor, method) - end - end - - def def_singleton_delegator(accessor, method, ali = method) - accessor = accessor.id2name if accessor.kind_of?(Integer) - method = method.id2name if method.kind_of?(Integer) - ali = ali.id2name if ali.kind_of?(Integer) - - instance_eval(<<-EOS, "(__FORWARDABLE__)", 1) - def #{ali}(*args, &block) - begin - #{accessor}.__send__(:#{method}, *args,&block) - rescue Exception - $@.delete_if{|s| /^\\(__FORWARDABLE__\\):/ =~ s} unless Forwardable::debug - Kernel::raise - end - end - EOS - end - - alias def_delegators def_singleton_delegators - alias def_delegator def_singleton_delegator -end - - - - |