1 files changed, 38 insertions, 0 deletions
diff --git a/utils/collections/set.go b/utils/collections/set.go
new file mode 100644
index 0000000..79e1ae2
--- /dev/null
+++ b/utils/collections/set.go
@@ -0,0 +1,38 @@
+package collections
+
+type Set[T comparable] struct {
+	items []T
+	index map[T]bool
+}
+
+func SetOf[T comparable](items ...T) Set[T] {
+	index := make(map[T]bool, len(items))
+	uniqueItems := make([]T, 0, len(items))
+
+	for _, item := range items {
+		if index[item] {
+			continue
+		}
+		index[item] = true
+		uniqueItems = append(uniqueItems, item)
+	}
+
+	return Set[T]{
+		items: uniqueItems,
+		index: index,
+	}
+}
+
+func (set Set[T]) Contains(item T) bool {
+	return set.index[item]
+}
+
+func (set Set[T]) All() []T {
+	copied := make([]T, len(set.items))
+	copy(copied, set.items)
+	return copied
+}
+
+func (set Set[T]) Len() int {
+	return len(set.items)
+}