From bfb84eed3b4c863474e0b2fa1d5dde3c638ec470 Mon Sep 17 00:00:00 2001
From: Joe Savona <joesavona@fb.com>
Date: Tue, 2 May 2023 10:47:48 -0700
Subject: [PATCH] Repro for memoized hook within logical expression

Repro of a bug in which we incorrect memoize hook calls that are inside logical
expressions (though the bug could occur for ternaries, optional calls, and
sequence expressions too).
---
 .../hook-inside-logical-expression.expect.md  | 32 +++++++++++++++++++
 .../hook-inside-logical-expression.js         |  4 +++
 2 files changed, 36 insertions(+)
 create mode 100644 compiler/forget/src/__tests__/fixtures/compiler/hook-inside-logical-expression.expect.md
 create mode 100644 compiler/forget/src/__tests__/fixtures/compiler/hook-inside-logical-expression.js

diff --git a/compiler/forget/src/__tests__/fixtures/compiler/hook-inside-logical-expression.expect.md b/compiler/forget/src/__tests__/fixtures/compiler/hook-inside-logical-expression.expect.md
new file mode 100644
index 0000000000..4d87e93b69
--- /dev/null
+++ b/compiler/forget/src/__tests__/fixtures/compiler/hook-inside-logical-expression.expect.md
@@ -0,0 +1,32 @@
+
+## Input
+
+```javascript
+function Component(props) {
+  const user = useFragment(graphql`...`, props.user) ?? {};
+  return user.name;
+}
+
+```
+
+## Code
+
+```javascript
+import { unstable_useMemoCache as useMemoCache } from "react";
+function Component(props) {
+  const $ = useMemoCache(2);
+  const c_0 = $[0] !== props.user;
+  let t0;
+  if (c_0) {
+    t0 = useFragment(graphql`...`, props.user) ?? {};
+    $[0] = props.user;
+    $[1] = t0;
+  } else {
+    t0 = $[1];
+  }
+  const user = t0;
+  return user.name;
+}
+
+```
+      
\ No newline at end of file
diff --git a/compiler/forget/src/__tests__/fixtures/compiler/hook-inside-logical-expression.js b/compiler/forget/src/__tests__/fixtures/compiler/hook-inside-logical-expression.js
new file mode 100644
index 0000000000..483edd58bb
--- /dev/null
+++ b/compiler/forget/src/__tests__/fixtures/compiler/hook-inside-logical-expression.js
@@ -0,0 +1,4 @@
+function Component(props) {
+  const user = useFragment(graphql`...`, props.user) ?? {};
+  return user.name;
+}