[swift-evolution] [Discussion] Rename BitwiseOperations protocol

Max Moiseev moiseev at apple.com
Wed Jul 6 15:28:14 CDT 2016

FixedWidthInteger only handles the implementation for the numbers, we should also consider OptionSet.

I think we should keep the protocol in case someone wants to implement their own type other than an integer to be used as a raw value type in the OptionSet.

As for renaming it, how about BitwiseOperand?

protocol BitwiseOperand {
  func bitwiseOr(_ rhs: Self) -> Self
  func bitwiseAnd(_ rhs: Self) -> Self
  // etc ...


> On Jul 1, 2016, at 5:19 PM, Dave Abrahams via swift-evolution <swift-evolution at swift.org> wrote:
> on Fri Jul 01 2016, Riley Testut <swift-evolution at swift.org> wrote:
>> Hi all,
>> This is probably very minor, but I’m not sure the protocol name
>> “BitwiseOperations” fits the Swift API Design Guidelines. Here’s what
>> the guidelines have to say about protocol names:
>> Protocols that describe what something is should read as nouns (e.g. Collection).
>> Protocols that describe a capability should be named using the
>> suffixes able, ible, or ing (e.g. Equatable, ProgressReporting).
>> From these two, BitwiseOperations appears to be (attempting) to follow
>> the first rule, yet “BitwiseOperations” doesn’t really describe what
>> the type is, but rather that it can do bitwise operations. The
>> documentation itself even describes the protocol as “a type that
>> supports standard bitwise arithmetic operators."
>> I propose we rename it to “BitwiseOperable”, or something
>> similar. Again, a small change, but if this were to ever happen, I
>> think Swift 3 is the time.
> BitwiseOperations should really be retired after
> https://github.com/apple/swift-evolution/blob/master/proposals/0104-improved-integers.md
> is implemented, and its uses replaced by FixedWidthInteger.
> -- 
> Dave
> _______________________________________________
> swift-evolution mailing list
> swift-evolution at swift.org
> https://lists.swift.org/mailman/listinfo/swift-evolution

More information about the swift-evolution mailing list