Allow syntax like obj.method(arg)=value
I propose here to allow a syntax like:
obj.method(arg) = value
It would be translated to the following:
obj.__send__(:method=, arg, value)
The lack of this syntax kind of limits the ability to design DSLs in Ruby in my opinion. I don't think this would bring any conflicts with existing parser rules.
My proposal would be to put the value at the last argument, akin to how
= works. So, for example this code would work:
module Indexable def dig=(*path, last, value) if path.empty? self[last] = value else first = path.shift self[first]&.dig(*path, last) = value end end end Hash.include Indexable Array.include Indexable
The kwargs may be supported similarly to how they work on
=, ie. becoming a penultimate Hash argument. While maybe not perfect, it is consistent with how
= works and I imagine most usecases won't require kwargs.