Software Development

Ruby Tips - How to figure out where a method is defined

The other day when I was dabbling with the huge codebase, I was wondering where a particular method was being declared for a specific method
Like
by Jey Geethan | August 12, 2018
Ruby Tips - How to figure out where a method is defined

The other day when I was dabbling with the huge codebase, I was wondering where a particular method was being declared for a specific method. I wanted to know this because my greps didn't turn out to volatile and didn't return any results.

The Solution

The Ruby interpreter has certain methods that can be used for identifying under which module or class, the particular method is being defined. See the example below.

module Foo
  def say_hello
    puts "hello"
  end
end
	

class Bar
  include Foo
end
	

puts Bar.new.method(:say_hello)                   #=> #<Method: Bar(Foo)#say_hello>
puts Bar.new.method(:say_hello).source_location   #=> hello.rb


So using the .source_location you will be able to figure which file it has been declared.


Jey Geethan

Jey Geethan is a poet, author and an entrepreneur.


Related Articles

Why Microservices?
Software Development

Why Microservices?

by Jey Geethan | December 16, 2022
I have a few tidbits about why to use microservices and why it makes sense to create few microservices as a side project and learn from the same
Top 5 Tips for Software Development Managers To Conduct Effective 1 on 1s With Your Reports
Software Development

Top 5 Tips for Software Development Managers To Conduct Effective 1 on 1s With Your Reports

by Jey Geethan | October 05, 2020
Some of the effective tips that can enhance your 1 on 1s with your reports. In 2020, software development is one of the major industries which provides millions of jobs. In fact, if you look at the statistics, this industry is poised to grow even further. According to Slashdata, it's expected to reach 45 million developers by 2030. As a manager, it's your responsibility that 1 on 1s are effective and help your reports. I want to talk about a few of the things that make this process really effective.
Do you want to use your macbook as a lap-heater?
Software Development

Do you want to use your macbook as a lap-heater?

by Jey Geethan | August 28, 2019
How many times have you felt the coldness of a meeting room and wish you had brought a heater into the room. Now you can convert your macbook into a heater
How to get informative, color prompts on Mac Terminal or iTerm2
Software Development

How to get informative, color prompts on Mac Terminal or iTerm2

by Jey Geethan | August 14, 2019
This article talks about how to get color prompts on your terminal and add some informative things like current git branch and distinctive colors for current path, username etc.
Can you have a dinner conversation around Pull Requests?
Software Development

Can you have a dinner conversation around Pull Requests?

by Jey Geethan | July 11, 2019
I believe that writing code is a way of communication and it enables developers understand better than just talking about the concepts or logic in plain english words.