Experimental support for @eslint/json (#369)

Author: ota-meshi

.changeset/shaggy-berries-knock.md

@@ -0,0 +1,5 @@
+---
+"eslint-plugin-jsonc": minor
+---
+
+Experimental support for `@eslint/json`

.github/workflows/NodeCI.yml

@@ -82,7 +82,7 @@ jobs:
       - name: Install Packages
         run: npm install
       - name: Test
-        run: npm test
+        run: npm run test:transpile-only
   test-with-eslint6:
     runs-on: ubuntu-latest
     strategy:
@@ -100,7 +100,7 @@ jobs:
           npx rimraf node_modules
           npm install
       - name: Test
-        run: npm test
+        run: npm run test:transpile-only
   test-with-eslint7:
     runs-on: ubuntu-latest
     strategy:
@@ -118,7 +118,7 @@ jobs:
           npx rimraf node_modules
           npm install
       - name: Test
-        run: npm test
+        run: npm run test:transpile-only
   test-and-coverage:
     runs-on: ubuntu-latest
     steps:

README.md

@@ -95,7 +95,7 @@ Use `eslint.config.js` file to configure rules. See also: <https://eslint.org/do
 
 Example **eslint.config.js**:
 
-```mjs
+```js
 import eslintPluginJsonc from 'eslint-plugin-jsonc';
 export default [
   // add more generic rule sets here, such as:
@@ -179,6 +179,55 @@ module.exports = {
 };
 ```
 
+#### **Experimental** support for `@eslint/json`
+
+We've launched experimental support for [`@eslint/json`].
+
+Configure it as follows:
+
+```js
+import json from "@eslint/json";
+import jsonc from 'eslint-plugin-jsonc';
+
+export default [
+  {
+    plugins: {
+      json,
+      jsonc
+    },
+  },
+  {
+    files: ["**/*.json"],
+    language: "json/json",
+    rules: {
+      // 'json/rule-name': 'error',
+      // 'jsonc/rule-name': 'error'
+    },
+  },
+  {
+    files: ["**/*.jsonc", ".vscode/*.json"],
+    language: "json/jsonc",
+    rules: {
+      // 'json/rule-name': 'error',
+      // 'jsonc/rule-name': 'error'
+    },
+  },
+  {
+    files: ["**/*.json5"],
+    language: "json/json5",
+    rules: {
+      // 'json/rule-name': 'error',
+      // 'jsonc/rule-name': 'error'
+    },
+  },
+];
+```
+
+However, we're not yet sure how best to make this work.
+Please note that we may change behavior without notice.
+
+[`@eslint/json`]: https://github.com/eslint/json
+
 ## :computer: Editor Integrations
 
 ### Visual Studio Code

docs/.vitepress/shim/rules/auto.mjs

@@ -1,4 +1,3 @@
-import { getSourceCode } from "eslint-compat-utils";
 // eslint-disable-next-line n/no-missing-import -- The file path used is the actual rule path
 import { createRule } from "../utils";
 export default createRule("auto", {
@@ -16,7 +15,7 @@ export default createRule("auto", {
     type: "suggestion",
   },
   create(context) {
-    const sourceCode = getSourceCode(context);
+    const sourceCode = context.sourceCode;
     if (!sourceCode.parserServices.isJSON) {
       return {};
     }

docs/user-guide/index.md

@@ -24,7 +24,7 @@ Use `eslint.config.js` file to configure rules. See also: <https://eslint.org/do
 
 Example **eslint.config.js**:
 
-```mjs
+```js
 import eslintPluginJsonc from 'eslint-plugin-jsonc';
 export default [
   // add more generic rule sets here, such as:
@@ -108,6 +108,55 @@ module.exports = {
 };
 ```
 
+#### **Experimental** support for `@eslint/json`
+
+We've launched experimental support for [`@eslint/json`].
+
+Configure it as follows:
+
+```js
+import json from "@eslint/json";
+import jsonc from 'eslint-plugin-jsonc';
+
+export default [
+  {
+    plugins: {
+      json,
+      jsonc
+    },
+  },
+  {
+    files: ["**/*.json"],
+    language: "json/json",
+    rules: {
+      // 'json/rule-name': 'error',
+      // 'jsonc/rule-name': 'error'
+    },
+  },
+  {
+    files: ["**/*.jsonc", ".vscode/*.json"],
+    language: "json/jsonc",
+    rules: {
+      // 'json/rule-name': 'error',
+      // 'jsonc/rule-name': 'error'
+    },
+  },
+  {
+    files: ["**/*.json5"],
+    language: "json/json5",
+    rules: {
+      // 'json/rule-name': 'error',
+      // 'jsonc/rule-name': 'error'
+    },
+  },
+];
+```
+
+However, we're not yet sure how best to make this work.
+Please note that we may change behavior without notice.
+
+[`@eslint/json`]: https://github.com/eslint/json
+
 ## :computer: Editor Integrations
 
 ### Visual Studio Code

eslint.config.mjs

@@ -59,6 +59,8 @@ export default [
       "@typescript-eslint/no-shadow": "off",
       "one-var": "off",
       "no-invalid-this": "off",
+      "new-cap": "off",
+      "func-style": "off",
 
       "no-restricted-imports": [
         "error",
@@ -84,36 +86,18 @@ export default [
           message:
             "Please use `eslint-compat-utils` module's `getSourceCode(context)` instead.",
         },
-        {
-          object: "context",
-          property: "sourceCode",
-          message:
-            "Please use `eslint-compat-utils` module's `getSourceCode(context)` instead.",
-        },
         {
           object: "context",
           property: "getFilename",
           message:
             "Please use `eslint-compat-utils` module's `getFilename(context)` instead.",
         },
-        {
-          object: "context",
-          property: "filename",
-          message:
-            "Please use `eslint-compat-utils` module's `getFilename(context)` instead.",
-        },
         {
           object: "context",
           property: "getCwd",
           message:
             "Please use `eslint-compat-utils` module's `getCwd(context)` instead.",
         },
-        {
-          object: "context",
-          property: "cwd",
-          message:
-            "Please use `eslint-compat-utils` module's `getCwd(context)` instead.",
-        },
         {
           object: "context",
           property: "getScope",
@@ -140,6 +124,9 @@ export default [
   },
   {
     files: ["*.md/**", "**/*.md/**"],
+    languageOptions: {
+      sourceType: "module",
+    },
     rules: {
       "n/no-missing-import": "off",
     },

lib/index.ts

@@ -14,8 +14,8 @@ import flatRecommendedWithJson5 from "./configs/flat/recommended-with-json5";
 import flatPrettier from "./configs/flat/prettier";
 import flatAll from "./configs/flat/all";
 import * as meta from "./meta";
+import { compatMomoaCreate } from "./utils/compat-momoa";
 
-// backward compatibility
 import {
   parseForESLint,
   parseJSON,
@@ -52,9 +52,9 @@ export default {
   meta,
   configs,
   rules,
-  // as parser
+
+  // backward compatibility
   parseForESLint,
-  // tools
   parseJSON,
   traverseNodes,
   getStaticJSONValue,
@@ -63,12 +63,14 @@ export {
   meta,
   configs,
   rules,
-  // as parser
-  parseForESLint,
   // tools
+  compatMomoaCreate,
+  // types
+  AST,
+
+  // backward compatibility
+  parseForESLint,
   parseJSON,
   traverseNodes,
   getStaticJSONValue,
-  // types
-  AST,
 };

lib/rules/array-bracket-newline.ts

@@ -2,7 +2,6 @@
 // MIT License. Copyright OpenJS Foundation and other contributors, <www.openjsf.org>
 import type { AST } from "jsonc-eslint-parser";
 import { createRule } from "../utils";
-import { getSourceCode } from "eslint-compat-utils";
 import { isTokenOnSameLine } from "../utils/eslint-ast-utils";
 import type { Token } from "../types";
 import { isCommentToken } from "@eslint-community/eslint-utils";
@@ -57,7 +56,7 @@ export default createRule("array-bracket-newline", {
     },
   },
   create(context) {
-    const sourceCode = getSourceCode(context);
+    const sourceCode = context.sourceCode;
     if (!sourceCode.parserServices.isJSON) {
       return {};
     }

lib/rules/array-bracket-spacing.ts

@@ -2,7 +2,6 @@
 // MIT License. Copyright OpenJS Foundation and other contributors, <www.openjsf.org>
 import type { AST } from "jsonc-eslint-parser";
 import { createRule } from "../utils";
-import { getSourceCode } from "eslint-compat-utils";
 import { isTokenOnSameLine } from "../utils/eslint-ast-utils";
 import type { Token } from "../types";
 
@@ -49,7 +48,7 @@ export default createRule("array-bracket-spacing", {
     },
   },
   create(context) {
-    const sourceCode = getSourceCode(context);
+    const sourceCode = context.sourceCode;
     if (!sourceCode.parserServices.isJSON) {
       return {};
     }

lib/rules/array-element-newline.ts

@@ -2,7 +2,6 @@
 // MIT License. Copyright OpenJS Foundation and other contributors, <www.openjsf.org>
 import type { AST } from "jsonc-eslint-parser";
 import { createRule } from "../utils";
-import { getSourceCode } from "eslint-compat-utils";
 import type { Token } from "../types";
 import { isCommaToken, isCommentToken } from "@eslint-community/eslint-utils";
 import { isTokenOnSameLine } from "../utils/eslint-ast-utils";
@@ -83,7 +82,7 @@ export default createRule("array-element-newline", {
     },
   },
   create(context) {
-    const sourceCode = getSourceCode(context);
+    const sourceCode = context.sourceCode;
     if (!sourceCode.parserServices.isJSON) {
       return {};
     }

lib/rules/auto.ts

@@ -1,5 +1,4 @@
-import { getCwd, getFilename, getSourceCode } from "eslint-compat-utils";
-import type { RuleListener, RuleModule } from "../types";
+import type { BaseRuleListener, RuleModule } from "../types";
 import { createRule } from "../utils";
 import { getAutoConfig } from "../utils/get-auto-jsonc-rules-config";
 
@@ -18,13 +17,12 @@ export default createRule("auto", {
     type: "suggestion",
   },
   create(context, params) {
-    const sourceCode = getSourceCode(context);
-    if (!sourceCode.parserServices.isJSON) {
+    if (!context.sourceCode.parserServices.isJSON) {
       return {};
     }
-    const autoConfig = getAutoConfig(getCwd(context), getFilename(context));
+    const autoConfig = getAutoConfig(context.cwd, context.filename);
 
-    const visitor: RuleListener = {};
+    const visitor: BaseRuleListener = {};
     for (const ruleId of Object.keys(autoConfig)) {
       // eslint-disable-next-line @typescript-eslint/no-require-imports, @typescript-eslint/no-var-requires -- special rule
       const rule: RuleModule = require(
@@ -45,20 +43,25 @@ export default createRule("auto", {
           context.report(options);
         },
       };
-      const ruleVisitor = rule.jsoncDefineRule.create(subContext, params);
-      for (const key of Object.keys(ruleVisitor)) {
+      const ruleVisitor: BaseRuleListener = rule.jsoncDefineRule.create(
+        subContext,
+        params,
+      );
+      for (const key of Object.keys(
+        ruleVisitor,
+      ) as (keyof BaseRuleListener)[]) {
         const newVisit = ruleVisitor[key];
         const oldVisit = visitor[key];
         if (!newVisit) {
           continue;
         }
         if (!oldVisit) {
-          visitor[key] = ruleVisitor[key];
+          visitor[key] = ruleVisitor[key] as any;
         } else {
-          visitor[key] = (...args: [never]) => {
+          visitor[key] = ((...args: [never]) => {
             oldVisit(...args);
             newVisit(...args);
-          };
+          }) as any;
         }
       }
     }

lib/rules/comma-dangle.ts

@@ -2,7 +2,6 @@
 // MIT License. Copyright OpenJS Foundation and other contributors, <www.openjsf.org>
 import type { AST } from "jsonc-eslint-parser";
 import { createRule } from "../utils";
-import { getSourceCode } from "eslint-compat-utils";
 import { isCommaToken } from "@eslint-community/eslint-utils";
 import { getNextLocation } from "../utils/eslint-ast-utils";
 
@@ -96,7 +95,7 @@ export default createRule("comma-dangle", {
     },
   },
   create(context) {
-    const sourceCode = getSourceCode(context);
+    const sourceCode = context.sourceCode;
     if (!sourceCode.parserServices.isJSON) {
       return {};
     }