Support ESLint 9

base.js

@@ -0,0 +1,194 @@
+// @ts-check
+
+import tseslint from "typescript-eslint"
+
+export default tseslint.config(tseslint.configs.base, {
+    files: ["**/*.ts"],
+    linterOptions: {
+        reportUnusedDisableDirectives: true
+    },
+    rules: {
+        "no-unused-vars": "off",
+        "@typescript-eslint/no-unused-vars": [
+            "error",
+            {
+                args: "all",
+                argsIgnorePattern: "^_",
+                caughtErrors: "all",
+                caughtErrorsIgnorePattern: "^_",
+                destructuredArrayIgnorePattern: "^_",
+                varsIgnorePattern: "^_",
+                ignoreRestSiblings: true
+            }
+        ],
+        "@typescript-eslint/no-floating-promises": "error",
+        "@typescript-eslint/adjacent-overload-signatures": "error",
+        "@typescript-eslint/array-type": [
+            "error",
+            {
+                default: "array"
+            }
+        ],
+        "@typescript-eslint/consistent-type-definitions": ["error", "interface"],
+        "@typescript-eslint/await-thenable": "error",
+        "@typescript-eslint/consistent-indexed-object-style": ["error", "record"],
+        "@typescript-eslint/explicit-member-accessibility": [
+            "error",
+            {
+                accessibility: "explicit"
+            }
+        ],
+        "@typescript-eslint/method-signature-style": ["error", "method"],
+        "@typescript-eslint/no-extra-non-null-assertion": "error",
+        "@typescript-eslint/no-inferrable-types": "error",
+        "@typescript-eslint/no-misused-new": "error",
+        "@typescript-eslint/no-non-null-asserted-optional-chain": "error",
+        "@typescript-eslint/no-require-imports": "error",
+        "@typescript-eslint/no-unnecessary-boolean-literal-compare": "error",
+        "@typescript-eslint/no-unnecessary-condition": "error",
+        "@typescript-eslint/no-unnecessary-type-assertion": "error",
+        // "@typescript-eslint/no-unsafe-return": "error",
+        "@typescript-eslint/non-nullable-type-assertion-style": "error",
+        "@typescript-eslint/prefer-for-of": "error",
+        "@typescript-eslint/prefer-includes": "error",
+        "@typescript-eslint/prefer-literal-enum-member": "error",
+        "@typescript-eslint/prefer-nullish-coalescing": "error",
+        "@typescript-eslint/prefer-optional-chain": "error",
+        "@typescript-eslint/prefer-readonly": "error",
+        "@typescript-eslint/prefer-return-this-type": "error",
+        "@typescript-eslint/prefer-string-starts-ends-with": "error",
+        "@typescript-eslint/prefer-ts-expect-error": "error",
+        "@typescript-eslint/require-array-sort-compare": ["error", { ignoreStringArrays: true }],
+        "@typescript-eslint/switch-exhaustiveness-check": "error",
+        "no-return-await": "off",
+        "@typescript-eslint/return-await": ["error", "always"],
+        "@typescript-eslint/require-await": "error",
+        "no-useless-constructor": "off",
+        "@typescript-eslint/no-useless-constructor": "error",
+        "@typescript-eslint/explicit-module-boundary-types": [
+            "error",
+            {
+                allowArgumentsExplicitlyTypedAsAny: true
+            }
+        ],
+        "no-dupe-class-members": "off",
+        "@typescript-eslint/no-dupe-class-members": ["error"],
+        "no-empty-function": "off",
+        "@typescript-eslint/no-empty-function": "error",
+        "@typescript-eslint/naming-convention": [
+            "error",
+            {
+                selector: "default",
+                format: ["camelCase"],
+                leadingUnderscore: "allow"
+            },
+            {
+                selector: "variable",
+                format: ["camelCase", "UPPER_CASE"],
+                leadingUnderscore: "allow"
+            },
+            {
+                selector: "typeLike",
+                format: ["PascalCase"]
+            },
+            {
+                selector: "enumMember",
+                format: ["PascalCase"]
+            },
+            {
+                selector: "classProperty",
+                format: ["camelCase", "UPPER_CASE"],
+                leadingUnderscore: "allow"
+            },
+            {
+                selector: "property",
+                format: null,
+                custom: {
+                    regex: "^(@type|@version|@context|(\\$?[a-z0-9]+)([A-Z][a-z0-9]*)*)(\\.(@type|@version|@context|[a-z0-9]+([A-Z][a-z0-9]*)*))*$",
+                    match: true
+                }
+            }
+        ],
+        "no-caller": "error",
+        "no-extend-native": "error",
+        "no-extra-bind": "error",
+        "no-new-object": "error",
+        "no-new-wrappers": "error",
+        "no-throw-literal": "error",
+        "no-with": "error",
+        "prefer-promise-reject-errors": "error",
+        "no-array-constructor": "error",
+        "no-multi-str": "error",
+        "one-var": [
+            "error",
+            {
+                var: "never",
+                let: "never",
+                const: "never"
+            }
+        ],
+        "spaced-comment": ["error", "always"],
+        "constructor-super": "error",
+        "no-new-symbol": "error",
+        "no-this-before-super": "error",
+        "no-var": "error",
+        "prefer-const": ["error", { destructuring: "all" }],
+        "prefer-rest-params": "error",
+        "prefer-spread": "error",
+        curly: ["error", "multi-line"],
+        "getter-return": "error",
+        "no-console": "error",
+        "no-constant-condition": "error",
+        "no-debugger": "error",
+        "no-dupe-args": "error",
+        "no-dupe-else-if": "error",
+        "no-dupe-keys": "error",
+        "no-duplicate-case": "error",
+        "no-ex-assign": "error",
+        "no-extra-boolean-cast": "error",
+        "no-import-assign": "error",
+        "no-invalid-regexp": "error",
+        "no-setter-return": "error",
+        "no-sparse-arrays": "error",
+        "no-unreachable": "error",
+        "no-unreachable-loop": "error",
+        "no-unsafe-finally": "error",
+        "no-unsafe-negation": "error",
+        "no-unsafe-optional-chaining": "error",
+        "use-isnan": "error",
+        "valid-typeof": "error",
+        "array-callback-return": "error",
+        "default-case-last": "error",
+        eqeqeq: "error",
+        "grouped-accessor-pairs": "error",
+        "no-alert": "error",
+        "no-constructor-return": "error",
+        "no-else-return": "error",
+        "no-eval": "error",
+        "no-extra-label": "error",
+        "no-implied-eval": "error",
+        "no-lone-blocks": "error",
+        "no-loop-func": "error",
+        "no-new": "error",
+        "no-new-func": "error",
+        "no-return-assign": "error",
+        "no-self-assign": "error",
+        "no-self-compare": "error",
+        "no-sequences": "error",
+        "no-unmodified-loop-condition": "error",
+        "no-unused-labels": "error",
+        "no-useless-call": "error",
+        "no-useless-catch": "error",
+        "no-useless-concat": "error",
+        "no-useless-escape": "error",
+        "no-void": "error",
+        yoda: "error",
+        "no-unused-expressions": "error",
+        "no-lonely-if": "error",
+        "no-duplicate-imports": "error",
+        "no-useless-rename": "error",
+        "prefer-template": "error",
+        "require-yield": "error",
+        "no-empty": "error"
+    }
+})

index.d.ts

@@ -0,0 +1,11 @@
+import { ConfigArray } from "typescript-eslint"
+
+declare const base: ConfigArray
+declare const jest: ConfigArray
+declare const mocha: ConfigArray
+declare const withFormatting: ConfigArray
+
+declare const base: ConfigArray
+export default base
+
+export const configs = { base, jest, mocha, withFormatting }