validate canons without yatest_common

1 files changed, 23 insertions, 0 deletions

diff --git a/library/go/slices/contains_all.go b/library/go/slices/contains_all.go
new file mode 100644
index 0000000000..3c3e8e1878
--- /dev/null
+++ b/library/go/slices/contains_all.go
@@ -0,0 +1,23 @@
+package slices
+
+// ContainsAll checks if slice of type E contains all elements of given slice, order independent
+func ContainsAll[E comparable](haystack []E, needle []E) bool {
+	m := make(map[E]struct{}, len(haystack))
+	for _, i := range haystack {
+		m[i] = struct{}{}
+	}
+	for _, v := range needle {
+		if _, ok := m[v]; !ok {
+			return false
+		}
+	}
+	return true
+}
+
+// ContainsAllStrings checks if string slice contains all elements of given slice
+// Deprecated: use ContainsAll instead
+var ContainsAllStrings = ContainsAll[string]
+
+// ContainsAllBools checks if bool slice contains all elements of given slice
+// Deprecated: use ContainsAll instead
+var ContainsAllBools = ContainsAll[bool]