From fc4f281408c56ab12db571a470456212a479edf5 Mon Sep 17 00:00:00 2001
From: Frank <frank@sst.dev>
Date: Thu, 18 Sep 2025 01:32:40 -0400
Subject: wip: zen

---
 packages/cloud/core/src/util/memo.ts | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100644 packages/cloud/core/src/util/memo.ts

(limited to 'packages/cloud/core/src/util/memo.ts')

diff --git a/packages/cloud/core/src/util/memo.ts b/packages/cloud/core/src/util/memo.ts
new file mode 100644
index 000000000..49043010f
--- /dev/null
+++ b/packages/cloud/core/src/util/memo.ts
@@ -0,0 +1,18 @@
+export function memo<T>(fn: () => T, cleanup?: (input: T) => Promise<void>) {
+  let value: T | undefined
+  let loaded = false
+
+  const result = (): T => {
+    if (loaded) return value as T
+    loaded = true
+    value = fn()
+    return value as T
+  }
+  result.reset = async () => {
+    if (cleanup && value) await cleanup(value)
+    loaded = false
+    value = undefined
+  }
+
+  return result
+}
-- 
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