project と projectService を切り替えるようにする

Author: sushichan044

packages/eslint-config/src/base/typescript.ts

@@ -2,72 +2,105 @@ import type { Linter } from "eslint";
 
 import { defineConfig } from "@eslint/config-helpers";
 import stylisticTs from "@stylistic/eslint-plugin-ts";
+import { defu } from "defu";
 import tseslint from "typescript-eslint";
+import * as typescriptESLintParserForExtraFiles from "typescript-eslint-parser-for-extra-files";
 
 import { __dirname } from "../lib/dir";
 import { tsFiles } from "../utils/files";
 
-export const tsConfig = defineConfig({
-  extends: [
-    ...(tseslint.configs.recommendedTypeChecked as Linter.Config[]),
-    ...(tseslint.configs.stylisticTypeChecked as Linter.Config[]),
-  ],
-  files: [tsFiles],
-  languageOptions: {
+type TSConfigParams = {
+  extraFiles: boolean;
+};
+
+const DEFAULT_PARAMS = {
+  extraFiles: false,
+} as const satisfies TSConfigParams;
+
+export const tsConfig = (params: Partial<TSConfigParams> = {}) => {
+  const resolvedParams = defu(params, DEFAULT_PARAMS);
+
+  return defineConfig({
+    extends: [
+      ...(tseslint.configs.recommendedTypeChecked as Linter.Config[]),
+      ...(tseslint.configs.stylisticTypeChecked as Linter.Config[]),
+    ],
+    files: [tsFiles],
+    languageOptions: getLanguageOptions({
+      extraFiles: resolvedParams.extraFiles,
+    }),
+    name: "@virtual-live-lab/eslint-config/typescript",
+    plugins: {
+      "@stylistic/ts": stylisticTs,
+    },
+    rules: {
+      "@stylistic/ts/no-extra-semi": "error",
+      "@typescript-eslint/adjacent-overload-signatures": "off",
+      // #175
+      "@typescript-eslint/array-type": [
+        "error",
+        {
+          default: "array-simple",
+        },
+      ],
+      "@typescript-eslint/ban-tslint-comment": "off",
+      "@typescript-eslint/class-literal-property-style": "off",
+      "@typescript-eslint/consistent-generic-constructors": "off",
+      "@typescript-eslint/consistent-indexed-object-style": "off",
+      "@typescript-eslint/consistent-type-assertions": "error",
+      "@typescript-eslint/consistent-type-definitions": "off",
+      "@typescript-eslint/consistent-type-exports": "error",
+      "@typescript-eslint/consistent-type-imports": "error",
+      "@typescript-eslint/no-confusing-non-null-assertion": "off",
+      "@typescript-eslint/no-deprecated": "warn",
+      "@typescript-eslint/no-duplicate-enum-values": "off",
+      "@typescript-eslint/no-import-type-side-effects": "error",
+      // this is for react-hook-form
+      "@typescript-eslint/no-misused-promises": [
+        "error",
+        {
+          checksVoidReturn: {
+            attributes: false,
+          },
+        },
+      ],
+      "@typescript-eslint/no-non-null-assertion": "warn",
+      "@typescript-eslint/no-unsafe-declaration-merging": "off",
+      "@typescript-eslint/prefer-for-of": "off",
+      "@typescript-eslint/prefer-function-type": "off",
+      "@typescript-eslint/promise-function-async": "error",
+      // #97
+      "@typescript-eslint/strict-boolean-expressions": [
+        "error",
+        {
+          allowNumber: false,
+        },
+      ],
+    },
+  });
+};
+
+const getLanguageOptions = (
+  params: Pick<TSConfigParams, "extraFiles">,
+): Linter.LanguageOptions => {
+  if (params.extraFiles) {
+    return {
+      // @ts-expect-error type mismatch, but works
+      parser: typescriptESLintParserForExtraFiles,
+      parserOptions: {
+        project: true,
+        projectService: false,
+        tsconfigRootDir: __dirname,
+      },
+    };
+  }
+  return {
     parserOptions: {
       projectService: {
         allowDefaultProject: ["*.js", "*.mjs", "*.cjs"],
         defaultProject: `${__dirname}/tsconfig.json`,
       },
       tsconfigRootDir: __dirname,
     },
-  },
-  name: "@virtual-live-lab/eslint-config/typescript",
-  plugins: {
-    "@stylistic/ts": stylisticTs,
-  },
-  rules: {
-    "@stylistic/ts/no-extra-semi": "error",
-    "@typescript-eslint/adjacent-overload-signatures": "off",
-    // #175
-    "@typescript-eslint/array-type": [
-      "error",
-      {
-        default: "array-simple",
-      },
-    ],
-    "@typescript-eslint/ban-tslint-comment": "off",
-    "@typescript-eslint/class-literal-property-style": "off",
-    "@typescript-eslint/consistent-generic-constructors": "off",
-    "@typescript-eslint/consistent-indexed-object-style": "off",
-    "@typescript-eslint/consistent-type-assertions": "error",
-    "@typescript-eslint/consistent-type-definitions": "off",
-    "@typescript-eslint/consistent-type-exports": "error",
-    "@typescript-eslint/consistent-type-imports": "error",
-    "@typescript-eslint/no-confusing-non-null-assertion": "off",
-    "@typescript-eslint/no-deprecated": "warn",
-    "@typescript-eslint/no-duplicate-enum-values": "off",
-    "@typescript-eslint/no-import-type-side-effects": "error",
-    // this is for react-hook-form
-    "@typescript-eslint/no-misused-promises": [
-      "error",
-      {
-        checksVoidReturn: {
-          attributes: false,
-        },
-      },
-    ],
-    "@typescript-eslint/no-non-null-assertion": "warn",
-    "@typescript-eslint/no-unsafe-declaration-merging": "off",
-    "@typescript-eslint/prefer-for-of": "off",
-    "@typescript-eslint/prefer-function-type": "off",
-    "@typescript-eslint/promise-function-async": "error",
-    // #97
-    "@typescript-eslint/strict-boolean-expressions": [
-      "error",
-      {
-        allowNumber: false,
-      },
-    ],
-  },
-});
+  };
+};