refactoring – Page 8 – Türker Yıldırım

#[Override] on a method that no longer overrides

NoteDecember 12, 20232 min read

Renaming a parent method is a silent break in every child, and 8.3 finally gives a way to say a method is meant to override something. Adding it…

Typed class constants, and the interface that had been lying

Deep diveDecember 7, 202310 min read

8.3 on 23 November, and a constant can finally declare a type. An interface constant documented as a string, implemented as an int in one class.

The method that stopped overriding anything in 2019

Deep diveDecember 5, 202310 min read

#[Override] in 8.3, and what it asserts. A subclass method dead since a parent rename four years ago, with a bug report closed as not reproducible.

The interface with one implementation, and when that is fine

Deep diveNovember 16, 202310 min read

140 interfaces, 128 of them with exactly one implementation, and a jump-to-definition that always lands on the wrong file.

The bundle we split by route, and the waterfall it created

Deep diveOctober 24, 202310 min read

A 900 KB bundle, split by route, and a page that got slower. Six sequential requests before the first render.

The decision record that stopped an argument happening twice

NoteOctober 24, 20232 min read

The same discussion about queue technology, for the third time in two years, with two of the three people having been present for the first. The consequences section…

Mutation testing for one directory, and what it found

Deep diveOctober 24, 202310 min read

94% line coverage on the pricing code, and a bug that shipped anyway. A test that called the method and asserted it did not throw.

The alert that fired for two years and meant nothing

Deep diveOctober 18, 202310 min read

Thirty-one alert rules, a channel muted by everybody, and 412 alerts in a month of which four corresponded to a real problem.

The any that took two hours to remove and was worth it

NoteOctober 17, 20231 min read

An any on a payload parameter, added in a hurry, propagating through nine functions before anything checked a property. any does not stay where it is put —…

A value object library, and the day it needed a serializer

Deep diveSeptember 20, 202310 min read

A Money type, an Email type, and thirty more, none of which can cross a boundary without being unwrapped by hand.