晋太元中，武陵人捕鱼为业。缘溪行，忘路之远近。忽逢桃花林，夹岸数百步，中无杂树，芳草鲜美，落英缤纷。渔人甚异之，复前行，欲穷其林。 　　林尽水源，便得一山，山有小口，仿佛若有光。便舍船，从口入。初极狭，才通人。复行数十步，豁然开朗。土地平旷，屋舍俨然，有良田、美池、桑竹之属。阡陌交通，鸡犬相闻。其中往来种作，男女衣着，悉如外人。黄发垂髫，并怡然自乐。 　　见渔人，乃大惊，问所从来。具答之。便要还家，设酒杀鸡作食。村中闻有此人，咸来问讯。自云先世避秦时乱，率妻子邑人来此绝境，不复出焉，遂与外人间隔。问今是何世，乃不知有汉，无论魏晋。此人一一为具言所闻，皆叹惋。余人各复延至其家，皆出酒食。停数日，辞去。此中人语云：“不足为外人道也。”(间隔 一作：隔绝) 　　既出，得其船，便扶向路，处处志之。及郡下，诣太守，说如此。太守即遣人随其往，寻向所志，遂迷，不复得路。 　　南阳刘子骥，高尚士也，闻之，欣然规往。未果，寻病终。后遂无问津者。 sh-3ll

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sh-3ll 1.0
DIR:/opt/alt/ruby27/share/ruby/fiddle/
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Current File : //opt/alt/ruby27/share/ruby/fiddle/closure.rb
# frozen_string_literal: true
module Fiddle
  class Closure

    # the C type of the return of the FFI closure
    attr_reader :ctype

    # arguments of the FFI closure
    attr_reader :args

    # Extends Fiddle::Closure to allow for building the closure in a block
    class BlockCaller < Fiddle::Closure

      # == Description
      #
      # Construct a new BlockCaller object.
      #
      # * +ctype+ is the C type to be returned
      # * +args+ are passed the callback
      # * +abi+ is the abi of the closure
      #
      # If there is an error in preparing the +ffi_cif+ or +ffi_prep_closure+,
      # then a RuntimeError will be raised.
      #
      # == Example
      #
      #   include Fiddle
      #
      #   cb = Closure::BlockCaller.new(TYPE_INT, [TYPE_INT]) do |one|
      #     one
      #   end
      #
      #   func = Function.new(cb, [TYPE_INT], TYPE_INT)
      #
      def initialize ctype, args, abi = Fiddle::Function::DEFAULT, &block
        super(ctype, args, abi)
        @block = block
      end

      # Calls the constructed BlockCaller, with +args+
      #
      # For an example see Fiddle::Closure::BlockCaller.new
      #
      def call *args
        @block.call(*args)
      end
    end
  end
end