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!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
--- !ruby/object:RI::MethodDescription
aliases: []
block_params:
comment:
- !ruby/struct:SM::Flow::P
body: Defines an instance method in the receiver. The method parameter can be a Proc or Method object. If a block is specified, it is used as the method body. This block is evaluated using instance_eval, a point that is tricky to demonstrate because define_method is private. (This is why we resort to the send hack in this example.)
- !ruby/struct:SM::Flow::VERB
body: " class A\n def fred\n puts "In Fred"\n end\n def create_method(name, &block)\n self.class.send(:define_method, name, &block)\n end\n define_method(:wilma) { puts "Charge it!" }\n end\n class B < A\n define_method(:barney, instance_method(:fred))\n end\n a = B.new\n a.barney\n a.wilma\n a.create_method(:betty) { p self }\n a.betty\n"
- !ruby/struct:SM::Flow::P
body: produces:
- !ruby/struct:SM::Flow::VERB
body: " In Fred\n Charge it!\n #<B:0x401b39e8>\n"
full_name: Module#define_method
is_singleton: false
name: define_method
params: |
define_method(symbol, method) => new_method
define_method(symbol) { block } => proc
visibility: public