1 files changed, 16 insertions, 0 deletions
diff --git a/reachability/walk_stack.go b/reachability/walk_stack.go
new file mode 100644
index 00000000..847ed1c0
--- /dev/null
+++ b/reachability/walk_stack.go
@@ -0,0 +1,16 @@
+package reachability
+
+import "codeberg.org/lindenii/furgit/objecttype"
+
+func (walk *Walk) initialStack() []walkItem {
+	if len(walk.wants) == 0 {
+		return nil
+	}
+
+	stack := make([]walkItem, 0, len(walk.wants))
+	for want := range walk.wants {
+		stack = append(stack, walkItem{id: want, want: objecttype.TypeInvalid})
+	}
+
+	return stack
+}