[swift-evolution] Fwd: Propagating Optionals

[Trans]

Just discovered that none of my replies made it to the mailing list.
Doesn't it bug others that the default reply is to the author and not
the list?


---------- Forwarded message ----------
From: Trans <transfire at gmail.com>
Date: Sun, Sep 25, 2016 at 9:36 PM
Subject: Re: [swift-evolution] Propagating Optionals
To: William Sumner <prestonsumner at me.com>


On Sun, Sep 25, 2016 at 7:26 PM, William Sumner <prestonsumner at me.com> wrote:
>
> You can accomplish this using parenthesis:
>
> let roomCount = (john.residence ?? homelessShelter).numberOfRooms

Yea. Don't know why that escaped me. Though it does start to look long
in the tooth if there is more than one.

    let x = ((foo.bar ?? dbar).baz ?? dbaz).zee

vs

    let x = foo.bar:dbar.baz:dbaz.zee

But then again maybe that is too concise.


-- 
People with courage and character always seem sinister to the rest.
--Hermann Hesse

Trans <transfire at gmail.com>
7r4n5.com      http://7r4n5.com