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把alias交給RM自己處理，咱們只負責塞代碼就好了～

热度 4已有 503 次阅读2012-2-29 13:01 | alias

$alias_acount = 0

def Object.amend(method_name, &amendment)

$__alias_acount += 1

class_eval %{

@@__al__proc#{$__alias_acount} = amendment

alias __al__method#{$__alias_acount} #{method_name}

def #{method_name}

__al__method#{$__alias_acount}

@@__al__proc #{$__alias_acount}.call

end

}

end

例子

class A

def method

end

A.amend(:method) {

p "くくくくく……"

}

A.amend(:method) {

p "kerokerokero……"

}

A.amend(:method) {

p "ohohohoho……"

}

A.new.method

eval真是神器呀，你看懂了麼？