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Re: Optional Semicolons

From: Edward Catmur <ecatmur_at_[hidden]>
Date: Thu, 28 Apr 2022 18:46:35 +0100
On Thu, 28 Apr 2022 at 18:40, Ville Voutilainen via Std-Discussion <
std-discussion_at_[hidden]> wrote:

> On Thu, 28 Apr 2022 at 20:34, William Linkmeyer via Std-Discussion
> <std-discussion_at_[hidden]> wrote:
> >
> > Some things will potentially change meaning — yes. But none of the
> examples here need to break existing code.
> >
> > We could optionally elide semicolons if — and only if — one or both of
> these conditions are meta:
> >
> > 1. A statement could end with a semicolon and be syntactically acceptable
> > 2. A statement is followed by another statement which also satisfies (1)
> >
> > Perhaps (2) could be modified as “… or by the end of the current scope.”
> I don't think this helps. In the status quo, it's actually easy to see
> when code structures will necessarily
> continue on the subsequent lines, and when they end. While the idea
> may seem convenient, especially
> for pascal users and javascript users etc. etc., it's actually going
> to make C++ iffier to read, whereas currently
> this part of C++ is very readable.

Best practice in Javascript is to insert "defensive" semicolons at the
start of lines that begin with a problematic token, principally open
parenthesis and open bracket.

I think the general attitude in that community is that ASI is a misfeature,
although beneficial to absolute beginners and to initial adoption.

Received on 2022-04-28 17:46:47