metaprogramming - Can a ruby object call super on a "grandparent"? -


if have class salad method chew , use super in it, call next available chew method available going chain of ancestors. if want "reach 2 levels up" (to second available chew method going chain)? there way without adding super first ancestor's method?

to make little more concrete, suppose salad class, salad object:

class salad < food   include almonds   include gorgonzola   include spinach   include dressing    def chew     super   end end  salad = salad.new

the array of ancestors this:

[salad, dressing, spinach, gorgonzola, almonds, food, object, kernel, basicobject]

if want salad.chew trigger chew method in spinach without adding super dressing#chew, possible? there way reach 2 levels (in same way super "reaches" 1 level up)?

yes, there way describing, , way through methods #method , #instance_method, in method = spinach.instance_method( :chew ), can bind salad, or metaclasses of salad instances, in method.bind( salad ). mechanism not neat using convenience keyword super, offers superset of super's functionality. there few more details, trust me, way, can want. that's power of ruby – can anything, point lispiest magic, need ripper, , (the far unfinished) sorcerer.

(for usage example, see other answer @ using object.inspect / object.to_s on class derived hash)


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