Framework: `NotImplemented`

Have you even written a comment like this one?

function foo(?Bar $bar): void {
    // TODO: handle nulls
    ...
}

Previously, I had those, too.

Not anymore.

I found that throwing the NotImplemented exception instead of a mere comment makes more sense to me - whenever you hit that line, the exception forces you to pay off this bit of technical debt:

function foo(?Bar $bar): void {
    if (!$bar) {
        throw new NotImplemented();        
    }

    ...
}

Only recently, I have found a really nice feature in PhpStorm called Exception Breakpoints. The idea is that whenever a specified exception is thrown, the debugger stops at the line that throws the exception.

And it's a perfect match for the NotImplemented exception. After configuring it, the debugger stop anytime when the execution hits a feature, or a special case, that is not implemented yet.

Configure it in Run -> View Breakpoints by pressing + -> PHP Exception Breakpoints, entering the full exception class name, and pressing OK: