darvaza.org/x/cmp
Generic helpers to compare and match values.
Generic CompFunc[T] (three-way) and CondFunc[T] (boolean)
types with conversion functions between the two styles — AsLess,
AsCmp, AsEqual, Reverse. Works with any type via custom
comparators, or directly
with comparable/:go-pkg{mod="darvaza.org/core" sym="Ordered"}
types.
The composable Matcher[T] interface chains predicates with
And, Or, and Not. Factory functions (MatchEq, MatchLt,
MatchGtEq, …) produce matchers from values or comparators, and
Compose transforms across types — e.g. match on a struct field
without unwrapping manually.