Re: [PATCH v2] userdiff: add support for Swift

From: Michael Montalbo <mmontalbo@gmail.com>
Date: Jul 27, 2026, 17:37 UTC
Message-ID: <CAC2QwmKuNEnFHraKTUkaskW4aeEWJvS68SyMfxMnhwMEoJuhrQ@mail.gmail.com>
In-Reply-To: <734cf745-ff32-4681-be2f-ad3225c80bec@kdbg.org>

On Sun, Jul 26, 2026 at 11:44 PM Johannes Sixt <j6t@kdbg.org> wrote:

Show 11 quoted lines

>
> Am 27.07.26 um 07:03 schrieb Michael Montalbo:
> > On Tue, Jul 21, 2026 at 12:06 AM Shlok Kulshreshtha <diy2903@gmail.com> wrote:
> >>
> >> Add a built-in userdiff driver for the Swift programming language so that
> >> diff hunk headers and word diffs work out of the box for ".swift" files.
> >>
> >
> > I noticed other languages add a test_language_driver entry to
> > t/t4034-diff-words.sh with corresponding pre/post/expect
> > fixtures. Should we add something similar for Swift?

[snip]

> In the past, these test scripts turned out to
> be non-trivial to get correct and it was a burden for both the author
> and the reviewers. It would certainly exceed the scope of a microproject.
>

Got it, thanks for the context.

FWIW, I tested the changes against a recent WWDC 2026 sample project[1] I was playing around with, and the new user driver appears to work well.

[1] https://developer.apple.com/documentation/FoundationModels/origami-crafting-a-dynamic-tutorial-for-apple-intelligence