Ruby Super Keyword Arguments

We will take the examples mentioned there and for each scenario we will look into how we can fix them in the existing codebase.

Ruby super keyword arguments.

Rdoc style documentation forruby keywords 1 9 1. Luckily ruby 2 1 introduced required keyword arguments which are defined with a trailing colon. Super calls vehicular move forward end end called with no arguments andno empty argument list supercalls the appropriate method with the same arguments andthe same. Black june 29 2009.

We can add parentheses to the super keyword. Examples of this are the keyword arguments for float round kernel clone string lines introduced in ruby 2 4. Again to achieve similar behavior in ruby 1 9 the block would take an options hash from which we would extract argument values. 0 a b end.

The ruby super keyword behaves differently when used with or without arguments. When method definition accepts keyword arguments as the last argument. So ruby tries to find a method say in the ancestor chain of the child class. Within the child say method we call super without any argument.

One strategy i ve been observing on ruby built in methods is that new versions tend to add new optional arguments as keyword arguments. It will pass along the arguments used for the original method call to the new one including keyword arguments a block if given.