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。
| DIR:/opt/alt/ruby18/share/ri/1.8/system/UnboundMethod/ |
| Current File : //opt/alt/ruby18/share/ri/1.8/system/UnboundMethod/cdesc-UnboundMethod.yaml |
--- !ruby/object:RI::ClassDescription attributes: [] class_methods: [] comment: - !ruby/struct:SM::Flow::P body: "Ruby supports two forms of objectified methods. Class <tt>Method</tt> is used to represent methods that are associated with a particular object: these method objects are bound to that object. Bound method objects for an object can be created using <tt>Object#method</tt>." - !ruby/struct:SM::Flow::P body: Ruby also supports unbound methods; methods objects that are not associated with a particular object. These can be created either by calling <tt>Module#instance_method</tt> or by calling <tt>unbind</tt> on a bound method object. The result of both of these is an <tt>UnboundMethod</tt> object. - !ruby/struct:SM::Flow::P body: Unbound methods can only be called after they are bound to an object. That object must be be a kind_of? the method's original class. - !ruby/struct:SM::Flow::VERB body: " class Square\n def area\n @side * @side\n end\n def initialize(side)\n @side = side\n end\n end\n\n area_un = Square.instance_method(:area)\n\n s = Square.new(12)\n area = area_un.bind(s)\n area.call #=> 144\n" - !ruby/struct:SM::Flow::P body: "Unbound methods are a reference to the method at the time it was objectified: subsequent changes to the underlying class will not affect the unbound method." - !ruby/struct:SM::Flow::VERB body: " class Test\n def test\n :original\n end\n end\n um = Test.instance_method(:test)\n class Test\n def test\n :modified\n end\n end\n t = Test.new\n t.test #=> :modified\n um.bind(t).call #=> :original\n" constants: [] full_name: UnboundMethod includes: [] instance_methods: - !ruby/object:RI::MethodSummary name: == - !ruby/object:RI::MethodSummary name: arity - !ruby/object:RI::MethodSummary name: bind - !ruby/object:RI::MethodSummary name: clone - !ruby/object:RI::MethodSummary name: inspect - !ruby/object:RI::MethodSummary name: name - !ruby/object:RI::MethodSummary name: owner - !ruby/object:RI::MethodSummary name: to_s name: UnboundMethod superclass: Object |