From 0894e35d94fa84136e68403c7135c276a5f7898a Mon Sep 17 00:00:00 2001
From: Joe Savona <joesavona@fb.com>
Date: Fri, 19 Jan 2024 19:12:58 -0800
Subject: [PATCH] More fixtures for reactivity and mutable aliasing (property
 load case)

---
 ...d-mutation-through-property-load.expect.md | 87 +++++++++++++++++++
 ...-aliased-mutation-through-property-load.js | 28 ++++++
 2 files changed, 115 insertions(+)
 create mode 100644 compiler/packages/babel-plugin-react-forget/src/__tests__/fixtures/compiler/reactivity-via-aliased-mutation-through-property-load.expect.md
 create mode 100644 compiler/packages/babel-plugin-react-forget/src/__tests__/fixtures/compiler/reactivity-via-aliased-mutation-through-property-load.js

diff --git a/compiler/packages/babel-plugin-react-forget/src/__tests__/fixtures/compiler/reactivity-via-aliased-mutation-through-property-load.expect.md b/compiler/packages/babel-plugin-react-forget/src/__tests__/fixtures/compiler/reactivity-via-aliased-mutation-through-property-load.expect.md
new file mode 100644
index 0000000000..cb63403c90
--- /dev/null
+++ b/compiler/packages/babel-plugin-react-forget/src/__tests__/fixtures/compiler/reactivity-via-aliased-mutation-through-property-load.expect.md
@@ -0,0 +1,87 @@
+
+## Input
+
+```javascript
+function Component(props) {
+  const x = {};
+  const y = [];
+  x.y = y;
+  x.y.push(props.input);
+
+  let z = 0;
+  if (x.y[0]) {
+    z = 1;
+  }
+
+  return [z];
+}
+
+export const FIXTURE_ENTRYPOINT = {
+  fn: Component,
+  params: [],
+  sequentialRenders: [
+    { input: true },
+    { input: true },
+    { input: false },
+    { input: false },
+    { input: true },
+    { input: false },
+    { input: true },
+    { input: false },
+  ],
+};
+
+```
+
+## Code
+
+```javascript
+import { unstable_useMemoCache as useMemoCache } from "react";
+function Component(props) {
+  const $ = useMemoCache(2);
+  const x = {};
+  const y = [];
+  x.y = y;
+  x.y.push(props.input);
+
+  let z = 0;
+  if (x.y[0]) {
+    z = 1;
+  }
+  let t0;
+  if ($[0] !== z) {
+    t0 = [z];
+    $[0] = z;
+    $[1] = t0;
+  } else {
+    t0 = $[1];
+  }
+  return t0;
+}
+
+export const FIXTURE_ENTRYPOINT = {
+  fn: Component,
+  params: [],
+  sequentialRenders: [
+    { input: true },
+    { input: true },
+    { input: false },
+    { input: false },
+    { input: true },
+    { input: false },
+    { input: true },
+    { input: false },
+  ],
+};
+
+```
+      
+### Eval output
+(kind: ok) [1]
+[1]
+[0]
+[0]
+[1]
+[0]
+[1]
+[0]
\ No newline at end of file
diff --git a/compiler/packages/babel-plugin-react-forget/src/__tests__/fixtures/compiler/reactivity-via-aliased-mutation-through-property-load.js b/compiler/packages/babel-plugin-react-forget/src/__tests__/fixtures/compiler/reactivity-via-aliased-mutation-through-property-load.js
new file mode 100644
index 0000000000..a691e135fa
--- /dev/null
+++ b/compiler/packages/babel-plugin-react-forget/src/__tests__/fixtures/compiler/reactivity-via-aliased-mutation-through-property-load.js
@@ -0,0 +1,28 @@
+function Component(props) {
+  const x = {};
+  const y = [];
+  x.y = y;
+  x.y.push(props.input);
+
+  let z = 0;
+  if (x.y[0]) {
+    z = 1;
+  }
+
+  return [z];
+}
+
+export const FIXTURE_ENTRYPOINT = {
+  fn: Component,
+  params: [],
+  sequentialRenders: [
+    { input: true },
+    { input: true },
+    { input: false },
+    { input: false },
+    { input: true },
+    { input: false },
+    { input: true },
+    { input: false },
+  ],
+};