From 80b853db90ae3d4e32c4b7ec9d45a5c41dc459c9 Mon Sep 17 00:00:00 2001
From: Josh Goldberg <joshuakgoldberg@outlook.com>
Date: Sun, 31 Oct 2021 23:30:18 -0400
Subject: [PATCH] fix(eslint-plugin): ignore private identifiers in
 explicit-module-boundary-types (#4046)

---
 .../src/rules/explicit-module-boundary-types.ts        | 10 ++++++++--
 .../tests/rules/explicit-module-boundary-types.test.ts | 10 ++++++++++
 2 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/packages/eslint-plugin/src/rules/explicit-module-boundary-types.ts b/packages/eslint-plugin/src/rules/explicit-module-boundary-types.ts
index e189727463f..adaacaf363f 100644
--- a/packages/eslint-plugin/src/rules/explicit-module-boundary-types.ts
+++ b/packages/eslint-plugin/src/rules/explicit-module-boundary-types.ts
@@ -336,7 +336,10 @@ export default util.createRule<Options, MessageIds>({
           return;
 
         case AST_NODE_TYPES.PropertyDefinition:
-          if (node.accessibility === 'private') {
+          if (
+            node.accessibility === 'private' ||
+            node.key.type === AST_NODE_TYPES.PrivateIdentifier
+          ) {
             return;
           }
           return checkNode(node.value);
@@ -353,7 +356,10 @@ export default util.createRule<Options, MessageIds>({
 
         case AST_NODE_TYPES.MethodDefinition:
         case AST_NODE_TYPES.TSAbstractMethodDefinition:
-          if (node.accessibility === 'private') {
+          if (
+            node.accessibility === 'private' ||
+            node.key.type === AST_NODE_TYPES.PrivateIdentifier
+          ) {
             return;
           }
           return checkNode(node.value);
diff --git a/packages/eslint-plugin/tests/rules/explicit-module-boundary-types.test.ts b/packages/eslint-plugin/tests/rules/explicit-module-boundary-types.test.ts
index ba80da5b588..e511e29d682 100644
--- a/packages/eslint-plugin/tests/rules/explicit-module-boundary-types.test.ts
+++ b/packages/eslint-plugin/tests/rules/explicit-module-boundary-types.test.ts
@@ -82,6 +82,16 @@ export class Test {
 }
       `,
     },
+    `
+export class PrivateProperty {
+  #property = () => null;
+}
+    `,
+    `
+export class PrivateMethod {
+  #method() {}
+}
+    `,
     {
       // https://github.com/typescript-eslint/typescript-eslint/issues/2150
       code: `