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| | # -*- encoding: binary -*-
# :enddoc:
module Metropolis::MultiHash
autoload :Digest, 'metropolis/multi_hash/digest'
autoload :ToI, 'metropolis/multi_hash/to_i'
def self.extended(obj)
sym = obj.instance_eval {
case @multi_hash.to_s
when /\Ato_i/
extend Metropolis::MultiHash::ToI
when /\Adigest_/
extend Metropolis::MultiHash::Digest
when /\Atdb_hash_/
extend TDB::HashFunctions
end
@multi_hash
}
obj.respond_to?(sym) or
raise ArgumentError, "multi_hash=#{sym} not supported"
(class << obj; self; end).instance_eval do
alias_method :multi_hash, sym
end
end
end
|