1 files changed, 5 insertions, 0 deletions
diff --git a/packages/astro-parser/src/utils/link.ts b/packages/astro-parser/src/utils/link.ts
new file mode 100644
index 000000000..4e2ed662f
--- /dev/null
+++ b/packages/astro-parser/src/utils/link.ts
@@ -0,0 +1,5 @@
+/** Linked list */
+export function link<T extends { next?: T; prev?: T }>(next: T, prev: T) {
+  prev.next = next;
+  if (next) next.prev = prev;
+}