From 0358c6f6c38f76fc557386f1ae92c9e06637afc4 Mon Sep 17 00:00:00 2001
From: overlookmotel <557937+overlookmotel@users.noreply.github.com>
Date: Tue, 14 Jan 2025 08:38:54 +0000
Subject: [PATCH] test(transformer/async-to-generator): failing test for async
 arrow function in class static block (#8387)

It's arguable whether we should support this, because async functions is ES2018 and class static blocks is ES2022. So there should not be any browser which needs async-to-generator transform, and not the static block transform too. And when class-static-block transform is enabled, this works fine.

But personally, I think we should support it, because:

1. We allow user to enable/disable arbitrary transforms via `TransformOptions`.
2. We support `this` in async arrow functions in class static blocks, so it makes sense to complete that support.
3. I don't think it should be too hard, as the framework for it is already there in the async-to-generator transform.

[Babel REPL](https://babeljs.io/repl#?browsers=defaults%2C%20not%20ie%2011%2C%20not%20ie_mob%2011&build=&builtIns=false&corejs=3.21&spec=false&loose=false&code_lz=MYGwhgzhAEDC0FMAeAXBA7AJjAytA3gFDTQQpgoCWwBxJ0KAFpRAHQBm60AvNJAJ7oaACgCUPAHykArgAcEAJw4B7ZQG46AX0LagA&debug=false&forceAllTransforms=false&modules=false&shippedProposals=false&evaluate=false&fileSize=false&timeTravel=false&sourceType=module&lineWrap=true&presets=&prettier=true&targets=&version=7.26.4&externalPlugins=%40babel%2Fplugin-transform-async-to-generator%407.25.9%2C%40babel%2Fplugin-external-helpers%407.25.9&assumptions=%7B%7D)
---
 tasks/transform_conformance/snapshots/oxc.snap.md         | 8 ++++++--
 .../test/fixtures/class/static-block/input.js             | 5 +++++
 .../test/fixtures/class/static-block/output.js            | 8 ++++++++
 3 files changed, 19 insertions(+), 2 deletions(-)
 create mode 100644 tasks/transform_conformance/tests/babel-plugin-transform-async-to-generator/test/fixtures/class/static-block/input.js
 create mode 100644 tasks/transform_conformance/tests/babel-plugin-transform-async-to-generator/test/fixtures/class/static-block/output.js

diff --git a/tasks/transform_conformance/snapshots/oxc.snap.md b/tasks/transform_conformance/snapshots/oxc.snap.md
index 44675a8c63426..ff954e232fadd 100644
--- a/tasks/transform_conformance/snapshots/oxc.snap.md
+++ b/tasks/transform_conformance/snapshots/oxc.snap.md
@@ -1,6 +1,6 @@
 commit: 54a8389f
 
-Passed: 126/147
+Passed: 126/148
 
 # All Passed:
 * babel-plugin-transform-class-static-block
@@ -10,7 +10,6 @@ Passed: 126/147
 * babel-plugin-transform-optional-catch-binding
 * babel-plugin-transform-async-generator-functions
 * babel-plugin-transform-object-rest-spread
-* babel-plugin-transform-async-to-generator
 * babel-plugin-transform-exponentiation-operator
 * babel-plugin-transform-arrow-functions
 * babel-preset-typescript
@@ -47,6 +46,11 @@ after transform: SymbolId(0): [ReferenceId(0), ReferenceId(2), ReferenceId(6), R
 rebuilt        : SymbolId(0): [ReferenceId(0), ReferenceId(2), ReferenceId(6), ReferenceId(10)]
 
 
+# babel-plugin-transform-async-to-generator (20/21)
+* class/static-block/input.js
+x Output mismatch
+
+
 # babel-plugin-transform-typescript (2/13)
 * class-property-definition/input.ts
 Unresolved references mismatch:
diff --git a/tasks/transform_conformance/tests/babel-plugin-transform-async-to-generator/test/fixtures/class/static-block/input.js b/tasks/transform_conformance/tests/babel-plugin-transform-async-to-generator/test/fixtures/class/static-block/input.js
new file mode 100644
index 0000000000000..2f3402957f874
--- /dev/null
+++ b/tasks/transform_conformance/tests/babel-plugin-transform-async-to-generator/test/fixtures/class/static-block/input.js
@@ -0,0 +1,5 @@
+class C extends S {
+  static {
+    this.fn = async () => super.foo;
+  }
+}
diff --git a/tasks/transform_conformance/tests/babel-plugin-transform-async-to-generator/test/fixtures/class/static-block/output.js b/tasks/transform_conformance/tests/babel-plugin-transform-async-to-generator/test/fixtures/class/static-block/output.js
new file mode 100644
index 0000000000000..4092b9b3b5015
--- /dev/null
+++ b/tasks/transform_conformance/tests/babel-plugin-transform-async-to-generator/test/fixtures/class/static-block/output.js
@@ -0,0 +1,8 @@
+class C extends S {
+  static {
+    var _superprop_getFoo = () => super.foo;
+    this.fn = babelHelpers.asyncToGenerator(function* () {
+      return _superprop_getFoo();
+    });
+  }
+}