The new information might be that the "form" naming conventions have not been that well received, i.e. the naming discussion cannot really be described as "settled" :-)
-Thorsten
···
Am 26. April 2016 um 22:02 schrieb Dave Abrahams dabrahams@apple.com:
Am 23.04.2016 um 10:27 schrieb Pyry Jahkola via swift-evolution > > swift-evolution@swift.org:
I'd like to second James Campbell's suggestion of a
mutate
keyword.
Clarifying comments inline below:On 23 Apr 2016, at 00:24, Dave Abrahams via swift-evolution > > swift-evolution@swift.org wrote:
This is not a new idea. Something almost identical to this has been
explored and discussed quite thoroughly already:
<https://github.com/apple/swift/blob/master/docs/proposals/Inplace.rst>.
In fact, it was implmented and later reverted because it raised
language-design questions for which we had no good answers.I don't know if the following are particularly good answers, but I'll try
anyway:I don't believe the choice of glyph (& vs =) affects any of the
fundamental issues:
- Should the x.=f() syntax be required for every mutating method
invocation?Allow me to ask it differently: Should some specific syntax be required for
every mutating method? — Yes.I think I like that idea.
Should the syntax be
x.=f()
? — Not necessarily. I kinda like James
Campbell's idea of amutate
keyword. Consider the following:var numbers = [5, 12, 6, 2]
mutate numbers.append(10)
mutate numbers.sort()
if let biggest = mutate numbers.popLast() {
print("The biggest number was:", biggest)
}So
mutate
would work much liketry
but—unliketry
which can move
further to the left—mutate
would have to always prefix the mutating
receiver.That doesn't look so bad (we might shorten 'mutate' to 'mut', though I don't
think that would be really necessary).on Tue Apr 26 2016, Thorsten Seitz <tseitz42-AT-icloud.com> wrote:
We've already discussed this whole question length, specifically
considered the direction of an almost-identical language feature, and
ended up settling on the “form/ed/ing” naming conventions. If there is
some new information since then, it would be possible to handle