Comparing enums without their associated values

[jrose (Jordan Rose)]

FWIW, a number of people agree with you on this—except that our conclusion is that enums shouldn't implicitly conform to Equatable at all. Unfortunately that'd be very source-breaking.

Unlikely-to-suceed pitch: remove implicit Hashable synthesis for enums without associated values

Hi all, Ever since SE-0185, Swift synthesizes Hashable and Equatable conformances for enums that explicitly declare them, as long as all payload cases are Hashable or Equatable, respectively. However there is an older feature which dates back to Swift 1, where an enum where all cases are empty implicitly gets a Hashable and Equatable conformance, in the obvious way where each case maps to an ordinal. There is no way to opt out of synthesizing this conformance. This has two downsides: There …