From 91e4f0712ec6da30b01054cab439d985798a9ebb Mon Sep 17 00:00:00 2001
From: Lauren Tan <poteto@users.noreply.github.com>
Date: Wed, 24 Jul 2024 15:57:03 -0400
Subject: [PATCH] [compiler] Repro for outlining bug in funcexprs

I discovered this compiler crash while trying to do an internal sync of
the compiler. Any kind of outlining appears to crash the babel plugin
when the component is a function expression.

ghstack-source-id: 4f717674af91d4d4b730e64cbd7a144b9faab13e
Pull Request resolved: https://github.com/facebook/react/pull/30443
---
 ...error.bug-outlining-in-func-expr.expect.md | 24 +++++++++++++++++++
 .../error.bug-outlining-in-func-expr.js       |  9 +++++++
 2 files changed, 33 insertions(+)
 create mode 100644 compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/error.bug-outlining-in-func-expr.expect.md
 create mode 100644 compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/error.bug-outlining-in-func-expr.js

diff --git a/compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/error.bug-outlining-in-func-expr.expect.md b/compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/error.bug-outlining-in-func-expr.expect.md
new file mode 100644
index 0000000000..1a6995067d
--- /dev/null
+++ b/compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/error.bug-outlining-in-func-expr.expect.md
@@ -0,0 +1,24 @@
+
+## Input
+
+```javascript
+const Component2 = props => {
+  return (
+    <ul>
+      {props.items.map(item => (
+        <li key={item.id}>{item.name}</li>
+      ))}
+    </ul>
+  );
+};
+
+```
+
+
+## Error
+
+```
+Invalid value used in weak set
+```
+          
+      
\ No newline at end of file
diff --git a/compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/error.bug-outlining-in-func-expr.js b/compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/error.bug-outlining-in-func-expr.js
new file mode 100644
index 0000000000..f8bef4f192
--- /dev/null
+++ b/compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/error.bug-outlining-in-func-expr.js
@@ -0,0 +1,9 @@
+const Component2 = props => {
+  return (
+    <ul>
+      {props.items.map(item => (
+        <li key={item.id}>{item.name}</li>
+      ))}
+    </ul>
+  );
+};