1 files changed, 20 insertions, 0 deletions
diff --git a/vendor/github.com/rogpeppe/go-internal/fmtsort/mapelem.go b/vendor/github.com/rogpeppe/go-internal/fmtsort/mapelem.go
new file mode 100644
index 000000000..98e4e38f4
--- /dev/null
+++ b/vendor/github.com/rogpeppe/go-internal/fmtsort/mapelem.go
@@ -0,0 +1,20 @@
+package fmtsort
+
+import "reflect"
+
+const brokenNaNs = false
+
+func mapElems(mapValue reflect.Value) ([]reflect.Value, []reflect.Value) {
+	// Note: this code is arranged to not panic even in the presence
+	// of a concurrent map update. The runtime is responsible for
+	// yelling loudly if that happens. See issue 33275.
+	n := mapValue.Len()
+	key := make([]reflect.Value, 0, n)
+	value := make([]reflect.Value, 0, n)
+	iter := mapValue.MapRange()
+	for iter.Next() {
+		key = append(key, iter.Key())
+		value = append(value, iter.Value())
+	}
+	return key, value
+}