From 8a85ba4e1877155819ca118be83e0cabe171159c Mon Sep 17 00:00:00 2001
From: fisker Cheung <lionkay@gmail.com>
Date: Sun, 21 Nov 2021 00:44:28 +0800
Subject: [PATCH] Update `acorn` (#11835)

* Update `acorn`

* Fix test, add changelog
---
 changelog_unreleased/javascript/11835.md      | 29 +++++++++++++++++++
 .../__snapshots__/jsfmt.spec.js.snap          | 11 -------
 tests/format/js/babel-plugins/jsfmt.spec.js   |  1 -
 yarn.lock                                     |  6 ++--
 4 files changed, 32 insertions(+), 15 deletions(-)
 create mode 100644 changelog_unreleased/javascript/11835.md

diff --git a/changelog_unreleased/javascript/11835.md b/changelog_unreleased/javascript/11835.md
new file mode 100644
index 000000000..eb7e51eb7
--- /dev/null
+++ b/changelog_unreleased/javascript/11835.md
@@ -0,0 +1,29 @@
+#### Support ES2022 class-private-fields-in syntax in `espree` parser (#11835 by @fisker)
+
+<!-- prettier-ignore -->
+```jsx
+// Input
+class Foo {
+  #brand;
+  static isC(obj) {
+    return #brand in Foo;
+  }
+}
+
+// Prettier stable
+SyntaxError: Unexpected token #brand (4:12)
+  2 |   #brand;
+  3 |   static isC(obj) {
+> 4 |     return #brand in Foo;
+    |            ^
+  5 |   }
+  6 | }
+
+// Prettier main
+class Foo {
+  #brand;
+  static isC(obj) {
+    return #brand in Foo;
+  }
+}
+```
diff --git a/tests/format/js/babel-plugins/__snapshots__/jsfmt.spec.js.snap b/tests/format/js/babel-plugins/__snapshots__/jsfmt.spec.js.snap
index 43fbdf12c..c9e348e3d 100644
--- a/tests/format/js/babel-plugins/__snapshots__/jsfmt.spec.js.snap
+++ b/tests/format/js/babel-plugins/__snapshots__/jsfmt.spec.js.snap
@@ -1704,17 +1704,6 @@ result; //=> "Hello, hello!"
 ================================================================================
 `;
 
-exports[`private-fields-in-in.js [espree] format 1`] = `
-"Unexpected token #brand (44:12)
-  42 |
-  43 |   static isC(obj) {
-> 44 |     return #brand in obj && #method in obj && #getter in obj;
-     |            ^
-  45 |   }
-  46 | }
-  47 |"
-`;
-
 exports[`private-fields-in-in.js format 1`] = `
 ====================================options=====================================
 parsers: ["babel", "babel-ts", "babel-flow"]
diff --git a/tests/format/js/babel-plugins/jsfmt.spec.js b/tests/format/js/babel-plugins/jsfmt.spec.js
index 4596b4824..21241cb17 100644
--- a/tests/format/js/babel-plugins/jsfmt.spec.js
+++ b/tests/format/js/babel-plugins/jsfmt.spec.js
@@ -17,7 +17,6 @@ run_spec(__dirname, ["babel", "babel-ts", "babel-flow"], {
       "pipeline-operator-fsharp.js",
       "pipeline-operator-minimal.js",
       "pipeline-operator-hack.js",
-      "private-fields-in-in.js",
       "record-tuple-record.js",
       "record-tuple-tuple.js",
       "throw-expressions.js",
diff --git a/yarn.lock b/yarn.lock
index d878e7844..28e01f1f1 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1994,9 +1994,9 @@ acorn@^7.1.1:
   integrity sha512-nQyp0o1/mNdbTO1PO6kHkwSrmgZ0MT/jCCpNiwbUjGoRN4dlBhqJtoQuCnEOKzgTVwg0ZWiCoQy6SxMebQVh8A==
 
 acorn@^8.2.4, acorn@^8.4.1, acorn@^8.5.0:
-  version "8.5.0"
-  resolved "https://registry.yarnpkg.com/acorn/-/acorn-8.5.0.tgz#4512ccb99b3698c752591e9bb4472e38ad43cee2"
-  integrity sha512-yXbYeFy+jUuYd3/CDcg2NkIYE991XYX/bje7LmjJigUciaeO1JR4XxXgCIV1/Zc/dRuFEyw1L0pbA+qynJkW5Q==
+  version "8.6.0"
+  resolved "https://registry.yarnpkg.com/acorn/-/acorn-8.6.0.tgz#e3692ba0eb1a0c83eaa4f37f5fa7368dd7142895"
+  integrity sha512-U1riIR+lBSNi3IbxtaHOIKdH8sLFv3NYfNv8sg7ZsNhcfl4HF2++BfqqrNAxoCLQW1iiylOj76ecnaUxz+z9yw==
 
 agent-base@6:
   version "6.0.2"