[swift-evolution] Annotation of Warnings/Errors

[Derrick Ho]

I feel like warnings showing up as you type are an IDE's responsibility.

Annotations to delay warnings seem like noise.  Once you get used to
programming you don't need the annotations.

If warnings are bothersome, then turn it off in the Xcode settings!




On Thu, Feb 2, 2017 at 1:34 PM Pierre Monod-Broca via swift-evolution <
swift-evolution at swift.org> wrote:

+1 to the proposal
+1 to teach how to remove live issues to beginners, so they have a chance
to train at detecting errors without the compiler



Pierre

Le 2 févr. 2017 à 17:48, Nicolas Fezans via swift-evolution <
swift-evolution at swift.org> a écrit :

+1

On Tue, Jan 31, 2017 at 11:55 AM, Tino Heth via swift-evolution <
swift-evolution at swift.org> wrote:

One of the biggest issues that I saw while teaching Swift to newbies (most
had not programmed before) is confusion based on the early warnings/errors
that swift/xcode gives you as they type.  What would happen is that they
would type a variable, and it would say… “You haven’t used this variable”
and so they would just click the fixit because they trust the compiler more
than they trust themselves.  This would lead to a point where they were
very confused because some of the code was code they had thought through,
and some of it was changed by random fixits in ways they didn’t understand…
and so it would lead to more errors/fixits until they had errors which
couldn’t be fixed.


Imho this is the best example to illustrate that inflationary use of
warnings does more harm than good, and I hope it will be fixed.

Having a bunch of conditions for warnings looks like overkill to me, and
there are alternatives:
- Only show when building
- Only show in release builds
- Linter

That said, I'm going out on a limb and claim I already know how to write
code and don't need basic schooling, and showing warnings before I hit
compile is merely a distraction.

But there are also Playgrounds which seem to be an important aspect of
Swift, especially for newbies who could really benefit from some hints.
There are no linters, no release builds, and even no regular builds for
Playgrounds, so your model is the only one that works for them.

Bottom line:
+1

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