Home

Find the Source of a Ruby Method's "Super"

It can be helpful when debugging to know what "super" is actually calling.

I've spent part of the last couple days debugging the bowels of a pesky Rails project. The issue was the infamous Stack Level Too Deep error.

I found the source of the problem was a gem's method calling super. And while the stack trace of an error will show you the pathway of an error, sometimes it can be helpful to manually find that pathway yourself during the debugging process.

It can be done in a quick one-liner using the name of the method:

method(:method_name).super_method.to_s

Where method_name is the name of the method you want to check.

Here's a simplistic example to demonstrate:

class A
def foo
'bar'
end
end

class B < A
def foo
method(:foo).super_method.to_s
end
end

a = A.new
a.foo # => bar

b = B.new
b.foo # => #<Method: A#foo>

Let's Connect

Keep Reading

Download a Collection of Images from URLs using Ruby

A quick method and loop to download a collection of images with Ruby.

Dec 07, 2015

Dynamic Routing in Middleman

Take Middleman's dynamic pages feature, combine it with data modeling, and voila! We have dynamic routing in Middleman.

May 04, 2018

Build & Deploy a Dynamic Site in an Hour for Free

Combine the forces of Contentful, Middleman, and Netlify to build and deploy dynamic-like site for free in less than an hour.

May 08, 2018