[swift-evolution] [Review] SE-0077 v2: Improved operator declarations
Anton Zhilin
antonyzhilin at gmail.com
Thu Jun 30 04:34:29 CDT 2016
https://github.com/apple/swift-evolution/blob/master/proposals
/0077-operator-precedence.md
Idea #1
There is a high chance that 'higherThan'/'lowerThan' names will be
chosen. I still see a problem with that. Keywords in Swift are written
in full lowercase, so we should actually take 'higherthan'/'lowerthan'.
But then what's the point of the preposition? It blends with
higher/lower and doesn't actually add any clarity. So we should drop
'than' and have just higher/lower or above/below or succeeds/preceeds or
whatever we choose, but *in a single word*.
Idea #2
I personally don't like the direction in which the proposal moved (I
understand the reasons). Before the first review, consensus seemed to be
on this:
precedence Multiplicative {
above Additive
below Exponentiative
}
And now:
precedencegroup MultiplicativePrecedence {
higherThan: AdditivePrecedence
lowerThan: ExponentiativePrecedence
}
Don't you have a feeling that something cute and 'swift' was turned into
a monster?
At least, if we change keywords, we will get this:
precedence MultiplicativePrecedence {
above: AdditivePrecedence
below: ExponentiativePrecedence
}
I also like in above/below that they are written with the same number of
letters, meaning that they will line up nicely.
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