From 8886c30453faf9f6978818324cbb25ed81f8e944 Mon Sep 17 00:00:00 2001
From: Steven Luscher <steven.luscher@anza.xyz>
Date: Mon, 14 Apr 2025 18:26:58 +0000
Subject: [PATCH] Upgrade to ESLint 9

---
 type-length-value/js/.eslintignore     |  5 ----
 type-length-value/js/.eslintrc         | 32 ---------------------
 type-length-value/js/eslint.config.mjs | 40 ++++++++++++++++++++++++++
 type-length-value/js/package.json      | 13 +++++----
 4 files changed, 47 insertions(+), 43 deletions(-)
 delete mode 100644 type-length-value/js/.eslintignore
 delete mode 100644 type-length-value/js/.eslintrc
 create mode 100644 type-length-value/js/eslint.config.mjs

diff --git a/type-length-value/js/.eslintignore b/type-length-value/js/.eslintignore
deleted file mode 100644
index 6da325ef..00000000
--- a/type-length-value/js/.eslintignore
+++ /dev/null
@@ -1,5 +0,0 @@
-docs
-lib
-test-ledger
-
-package-lock.json
diff --git a/type-length-value/js/.eslintrc b/type-length-value/js/.eslintrc
deleted file mode 100644
index 601318b7..00000000
--- a/type-length-value/js/.eslintrc
+++ /dev/null
@@ -1,32 +0,0 @@
-{
-    "root": true,
-    "extends": [
-        "eslint:recommended",
-        "plugin:@typescript-eslint/recommended",
-        "plugin:require-extensions/recommended"
-    ],
-    "parser": "@typescript-eslint/parser",
-    "plugins": [
-        "@typescript-eslint",
-        "require-extensions"
-    ],
-    "rules": {
-        "@typescript-eslint/ban-ts-comment": "off",
-        "@typescript-eslint/no-explicit-any": "off",
-        "@typescript-eslint/no-unused-vars": "off",
-        "@typescript-eslint/no-empty-interface": "off",
-        "@typescript-eslint/consistent-type-imports": "error"
-    },
-    "overrides": [
-        {
-            "files": [
-                "examples/**/*",
-                "test/**/*"
-            ],
-            "rules": {
-                "require-extensions/require-extensions": "off",
-                "require-extensions/require-index": "off"
-            }
-        }
-    ]
-}
diff --git a/type-length-value/js/eslint.config.mjs b/type-length-value/js/eslint.config.mjs
new file mode 100644
index 00000000..dfa09c18
--- /dev/null
+++ b/type-length-value/js/eslint.config.mjs
@@ -0,0 +1,40 @@
+// @ts-check
+
+import eslint from '@eslint/js';
+import importExtensions from 'eslint-plugin-import-extensions';
+import { globalIgnores } from 'eslint/config';
+import tseslint from 'typescript-eslint';
+
+export default tseslint.config(
+    globalIgnores([
+        '**/docs',
+        '**/lib',
+        '**/test-ledger',
+        '**/package-lock.json',
+    ]),
+    eslint.configs.recommended,
+    tseslint.configs.recommended,
+    {
+        plugins: {
+            'import-extensions': importExtensions,
+        },
+        rules: {
+            'import-extensions/require-extensions': 'error',
+        },
+    },
+    {
+        rules: {
+            '@typescript-eslint/ban-ts-comment': 'off',
+            '@typescript-eslint/no-explicit-any': 'off',
+            '@typescript-eslint/no-unused-vars': 'off',
+            '@typescript-eslint/no-empty-interface': 'off',
+            '@typescript-eslint/consistent-type-imports': 'error',
+        },
+    },
+    {
+        files: ['examples/**/*', 'test/**/*'],
+        rules: {
+            'import-extensions/require-extensions': 'off',
+        },
+    }
+);
diff --git a/type-length-value/js/package.json b/type-length-value/js/package.json
index 42ae2e0d..be18f5a1 100644
--- a/type-length-value/js/package.json
+++ b/type-length-value/js/package.json
@@ -49,21 +49,22 @@
         "buffer": "^6.0.3"
     },
     "devDependencies": {
+        "@eslint/eslintrc": "^3.3.1",
+        "@eslint/js": "^9.24.0",
         "@solana/prettier-config-solana": "^0.0.5",
         "@types/chai": "^5.0.1",
         "@types/mocha": "^10.0.10",
         "@types/node": "^22.10.2",
-        "@typescript-eslint/eslint-plugin": "^8.4.0",
-        "@typescript-eslint/parser": "^8.4.0",
         "chai": "^5.1.2",
-        "eslint": "^8.57.0",
-        "eslint-plugin-require-extensions": "^0.1.1",
-        "prettier": "^3.4.2",
+        "eslint": "^9.24.0",
+        "eslint-plugin-import-extensions": "^0.1.5",
         "gh-pages": "^6.2.0",
         "mocha": "^11.0.1",
+        "prettier": "^3.4.2",
         "shx": "^0.3.4",
         "ts-node": "^10.9.2",
         "typedoc": "^0.27.4",
-        "typescript": "^5.7.2"
+        "typescript": "^5.8.3",
+        "typescript-eslint": "^8.30.0"
     }
 }