@putout/plugin-eslint-plugin

Find and fix problems in your JavaScript code

(c) eslint.org

🐊Putout plugin helps to automate fixing ESLint plugins.

Install

npm i @putout/plugin-eslint-plugin -D

Rules

• ✅ apply-flat-config-to-rule-tester;
• ✅ convert-context-to-source;
• ✅ convert-require-resolve-to-require;
• ✅ turn-off-schema;
• ✅ update-ecma-version;

Config

1{
2    "rules": {
3        "eslint-plugin/convert-context-to-source": "on",
4        "eslint-plugin/apply-flat-config-to-rule-tester": "on",
5        "eslint-plugin/convert-require-resolve-to-require": "on",
6        "eslint-plugin/turn-off-schema": "on",
7        "eslint-plugin/update-ecma-version": ["on", {
8            "ecmaVersion": 2024
9        }]
10    }
11}

convert-context-to-source

When ESLint v9.0.0 is released, it will ship with several breaking changes for rule authors. These changes are necessary as part of the work to implement language plugins, which gives ESLint first-class support for linting languages other than JavaScript.

(c) eslint.org

Checkout in 🐊Putout Editor.

❌ Example of incorrect code

1context.parserServices;
2sourceCode.parserServices;
3context.getAncestors(node);
4context.getDeclaredVariables(node);
5context.getScope();
6context.getCwd();
7context.getSourceCode();
8context.markVariableAsUsed(name);
9context.getFilename();
10context.getPhysicalFilename();
11const nextNode = context.getNodeByRangeIndex(node.range[1] + 2);
12
13context.getSource();
14context.getSourceLines();
15context.getAllComments();
16context.getComments();
17context.getCommentsBefore();
18context.getCommentsAfter();
19context.getCommentsInside();
20context.getJSDocComment();
21context.getFirstToken();
22context.getFirstTokens();
23context.getLastToken();
24context.getLastTokens();
25context.getTokenAfter();
26context.getTokenBefore();
27context.getTokenByRangeStart();
28context.getTokens();
29context.getTokensAfter();
30context.getTokensBefore();
31context.getTokensBetween();
32context.parserServices;

✅ Example of correct code

1sourceCode.parserServices;
2sourceCode.parserServices;
3sourceCode.getAncestors(node);
4sourceCode.getDeclaredVariables(node);
5sourceCode.getScope();
6context.cwd;
7context.sourceCode;
8sourceCode.markVariableAsUsed(name);
9context.filename;
10context.physicalFilename;
11const nextNode = sourceCode.getNodeByRangeIndex(node.range[1] + 2);
12
13sourceCode.getText();
14sourceCode.getLines();
15sourceCode.getAllComments();
16sourceCode.getComments();
17sourceCode.getCommentsBefore();
18sourceCode.getCommentsAfter();
19sourceCode.getCommentsInside();
20sourceCode.getJSDocComment();
21sourceCode.getFirstToken();
22sourceCode.getFirstTokens();
23sourceCode.getLastToken();
24sourceCode.getLastTokens();
25sourceCode.getTokenAfter();
26sourceCode.getTokenBefore();
27sourceCode.getTokenByRangeStart();
28sourceCode.getTokens();
29sourceCode.getTokensAfter();
30sourceCode.getTokensBefore();
31sourceCode.getTokensBetween();
32sourceCode.parserServices;

apply-flat-config-to-rule-tester

Checkout in 🐊Putout Editor.

❌ Example of incorrect code

1const parserTester = new RuleTester({
2    parser: require.resolve('@babel/eslint-parser/experimental-worker'),
3    parserOptions: {
4        requireConfigFile: false,
5        babelOptions: {
6            plugins: ['@babel/plugin-syntax-typescript'],
7        },
8    },
9});

✅ Example of correct code

1const parserTester = new RuleTester({
2    parser: require.resolve('@babel/eslint-parser/experimental-worker'),
3    parserOptions: {
4        requireConfigFile: false,
5        babelOptions: {
6            plugins: ['@babel/plugin-syntax-typescript'],
7        },
8    },
9});

convert-require-resolve-to-require

Checkout in 🐊Putout Editor.

❌ Example of incorrect code

1const test = new RuleTester({
2    languageOptions: {
3        parser: require.resolve('@babel/eslint-parser/experimental-worker'),
4        parserOptions: {
5            requireConfigFile: false,
6            babelOptions: {
7                plugins: ['@babel/plugin-syntax-typescript'],
8            },
9        },
10    },
11});

✅ Example of correct code

1const test = new RuleTester({
2    languageOptions: {
3        parser: require('@babel/eslint-parser/experimental-worker'),
4        parserOptions: {
5            requireConfigFile: false,
6            babelOptions: {
7                plugins: ['@babel/plugin-syntax-typescript'],
8            },
9        },
10    },
11});

turn-off-schema

Checkout in 🐊Putout Editor.

❌ Example of incorrect code

1function getMeta(plugin) {
2    const {
3        type = 'layout',
4        recommended = true,
5        fixable = 'whitespace',
6    } = plugin;
7    
8    return {
9        type,
10        docs: {
11            recommended,
12        },
13        schema: {},
14        fixable,
15    };
16}

✅ Example of correct code

1function getMeta(plugin) {
2    const {
3        type = 'layout',
4        recommended = true,
5        fixable = 'whitespace',
6    } = plugin;
7    
8    return {
9        type,
10        docs: {
11            recommended,
12        },
13        schema: false,
14        fixable,
15    };
16}

update-ecma-version

Checkout in 🐊Putout Editor.

❌ Example of incorrect code

1const ruleTester = new RuleTester({
2    languageOptions: {
3        parserOptions: {
4            ecmaVersion: 2022,
5            sourceType: 'module',
6        },
7    },
8});

✅ Example of correct code

1const ruleTester = new RuleTester({
2    languageOptions: {
3        parserOptions: {
4            ecmaVersion: 2024,
5            sourceType: 'module',
6        },
7    },
8});

License

MIT