tree a56d226234088bb5c9cf3105bb8cfa12adf6c21b
parent e250a55e913727afa4a4ccf87d716232288d9b5f
author Joe Tsai <joetsai@digital-static.net> 1693503160 -0700
committer GitHub <noreply@github.com> 1693503160 -0700
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Add cmpopts.EquateComparable (#340)

This helper function makes it easier to specify that comparable types
are safe to directly compare with the == operator in Go.

The API does not use generics as it follows existing options like
cmp.AllowUnexported, cmpopts.IgnoreUnexported, or cmpopts.IgnoreTypes.

While generics provides type safety, the user experience is not as nice.
Our current API allows multiple types to be specified:
	cmpopts.EquateComparable(netip.Addr{}, netip.Prefix{})
While generics would not allow variadic arguments:
	cmpopts.EquateComparable[netip.Addr]()
	cmpopts.EquateComparable[netip.Prefix]()

Bump mininimum supported Go to 1.18 for net/netip type.
Start testing on Go 1.21.

Fixes #339