Current File : //proc/self/root/opt/cpanel/ea-ruby24/root/usr/share/ri/system/UnboundMethod/cdesc-UnboundMethod.ri
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I";Ruby supports two forms of objectified methods. Class ;TI"J<code>Method</code> is used to represent methods that are associated ;TI"Fwith a particular object: these method objects are bound to that ;TI"Eobject. Bound method objects for an object can be created using ;TI" <code>Object#method</code>.;To: RDoc::Markup::BlankLine o; ;[
I"FRuby also supports unbound methods; methods objects that are not ;TI"Iassociated with a particular object. These can be created either by ;TI"?calling <code>Module#instance_method</code> or by calling ;TI"I<code>unbind</code> on a bound method object. The result of both of ;TI"3these is an <code>UnboundMethod</code> object.;T@o; ;[I"CUnbound methods can only be called after they are bound to an ;TI"Bobject. That object must be a kind_of? the method's original ;TI" class.;T@o:RDoc::Markup::Verbatim;[I"class Square
;TI" def area
;TI" @side * @side
;TI" end
;TI" def initialize(side)
;TI" @side = side
;TI" end
;TI" end
;TI"
;TI"-area_un = Square.instance_method(:area)
;TI"
;TI"s = Square.new(12)
;TI" area = area_un.bind(s)
;TI"area.call #=> 144
;T: @format0o; ;[I"FUnbound methods are a reference to the method at the time it was ;TI"Fobjectified: subsequent changes to the underlying class will not ;TI" affect the unbound method.;T@o; ;[I"class Test
;TI" def test
;TI" :original
;TI" end
;TI" end
;TI"&um = Test.instance_method(:test)
;TI"class Test
;TI" def test
;TI" :modified
;TI" end
;TI" end
;TI"t = Test.new
;TI"%t.test #=> :modified
;TI"$um.bind(t).call #=> :original;T; 0:
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