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Monthly Downloads: 10
Programming language: Haskell
License: BSD 3-clause "New" or "Revised" License
Tags: Debug    
Latest version: v0.2.0.0

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README

Todo

Todo wraps some standard debug symbols in warnings so that you'll have to work a bit harder to miss unfinished code in your Haskell programs.

Hackage package

Usage

Say that you have this line of code:

neatFunction = undefined

undefined is a good stubbing tool but what if you forget what you were stubbing? You'd like to have some more info on what you were doing, so you do this:

neatFunction = error "Got to implement this someday or my boss will get mad"

This may work but there's some issues with it:

  • error is often used for non-total functions, this may confuse the reader
  • If we forget to implement the call for neatFunction, we're not getting noticed that our function currently is incomplete!

Therefore, with Debug.Todo you can do this:

import Debug.Todo

neatFunction = todo "I'm going to implement this!"

This will not only solve the cultural ambiguity of error but will also throw a compile time warning so if you're using -Wall in your build step, you will get a warning whenever you forget a todo in your code!

Example:

$ runhaskell example.hs

example.hs:5:16: warning: [-Wdeprecations]
    In the use of ‘todo’ (imported from Debug.Todo):
    "TODO:s exists in code! Make sure you fix them! "