Use modern APIs and retire MapKeys

1 files changed, 0 insertions, 14 deletions

diff --git a/util.go b/util.go
index 47a785a..ec2a3dd 100644
--- a/util.go
+++ b/util.go
@@ -3,20 +3,6 @@
 
 package core
 
-// MapKeys returns a slice containing all the keys of the map supplied.
-// It basically is https://pkg.go.dev/golang.org/x/exp/maps#Keys, but
-// that package is still unstable.
-func MapKeys[T ~map[K]V, K comparable, V any](m T) []K {
-	if len(m) == 0 {
-		return nil
-	}
-	ret := make([]K, 0, len(m))
-	for k := range m {
-		ret = append(ret, k)
-	}
-	return ret
-}
-
 // Must panics if err is not nil. It returns val otherwise.
 func Must[T any](val T, err error) T {
 	if err != nil {