eslint-plugin-stylistic-compat/dist/rules/implicit-arrow-linebreak.js

Compatibility version of @stylistic/eslint-plugin for Node.js >= 12 and ESLint v8

'use strict';

var utils = require('../utils.js');
require('@babel/runtime-corejs3/core-js/object/from-entries');
require('@babel/runtime-corejs3/core-js/instance/map');
require('@babel/runtime-corejs3/core-js/instance/filter');
require('@babel/runtime-corejs3/core-js/object/entries');
require('@babel/runtime-corejs3/core-js/set');
require('@babel/runtime-corejs3/core-js/instance/flags');
require('@babel/runtime-corejs3/core-js/instance/includes');
require('@babel/runtime-corejs3/core-js/instance/starts-with');
require('../vendor.js');
require('@babel/runtime-corejs3/core-js/object/assign');
require('@babel/runtime-corejs3/core-js/object/create');
require('@babel/runtime-corejs3/core-js/object/freeze');
require('@babel/runtime-corejs3/core-js/array/is-array');
require('@babel/runtime-corejs3/core-js/instance/last-index-of');
require('@babel/runtime-corejs3/core-js/instance/slice');
require('@babel/runtime-corejs3/core-js/object/define-properties');
require('@babel/runtime-corejs3/core-js/object/keys');
require('@babel/runtime-corejs3/core-js/instance/index-of');
require('@babel/runtime-corejs3/core-js/instance/at');
require('@babel/runtime-corejs3/core-js/symbol');
require('@babel/runtime-corejs3/core-js/symbol/iterator');
require('@babel/runtime-corejs3/core-js/parse-int');
require('@babel/runtime-corejs3/core-js/parse-float');
require('@babel/runtime-corejs3/core-js/weak-map');
require('@babel/runtime-corejs3/core-js/object/define-property');
require('@babel/runtime-corejs3/core-js/global-this');
require('@babel/runtime-corejs3/core-js/instance/for-each');
require('@babel/runtime-corejs3/core-js/array/from');
require('eslint/use-at-your-own-risk');
require('eslint');
require('@babel/runtime-corejs3/core-js/object/get-own-property-descriptor');
require('@babel/runtime-corejs3/core-js/map');
require('@babel/runtime-corejs3/core-js/instance/some');
require('@babel/runtime-corejs3/core-js/instance/find');
require('@babel/runtime-corejs3/core-js/instance/every');
require('@babel/runtime-corejs3/core-js/instance/sort');
require('@babel/runtime-corejs3/core-js/array/of');
require('@babel/runtime-corejs3/core-js/instance/concat');
require('@babel/runtime-corejs3/core-js/instance/entries');
require('@babel/runtime-corejs3/core-js/instance/find-index');
require('@babel/runtime-corejs3/core-js/instance/flat');
require('@babel/runtime-corejs3/core-js/instance/keys');
require('@babel/runtime-corejs3/core-js/instance/values');
require('@babel/runtime-corejs3/core-js/object/get-own-property-names');
require('@babel/runtime-corejs3/core-js/number/is-finite');
require('@babel/runtime-corejs3/core-js/number/is-nan');
require('@babel/runtime-corejs3/core-js/number/parse-float');
require('@babel/runtime-corejs3/core-js/number/parse-int');
require('@babel/runtime-corejs3/core-js/object/is');
require('@babel/runtime-corejs3/core-js/object/is-extensible');
require('@babel/runtime-corejs3/core-js/object/is-frozen');
require('@babel/runtime-corejs3/core-js/object/is-sealed');
require('@babel/runtime-corejs3/core-js/object/values');
require('@babel/runtime-corejs3/core-js/string/from-code-point');
require('@babel/runtime-corejs3/core-js/string/raw');
require('@babel/runtime-corejs3/core-js/instance/code-point-at');
require('@babel/runtime-corejs3/core-js/instance/ends-with');
require('@babel/runtime-corejs3/core-js/instance/pad-end');
require('@babel/runtime-corejs3/core-js/instance/pad-start');
require('@babel/runtime-corejs3/core-js/instance/trim');
require('@babel/runtime-corejs3/core-js/instance/trim-end');
require('@babel/runtime-corejs3/core-js/instance/trim-left');
require('@babel/runtime-corejs3/core-js/instance/trim-right');
require('@babel/runtime-corejs3/core-js/instance/trim-start');
require('@babel/runtime-corejs3/core-js/symbol/for');
require('@babel/runtime-corejs3/core-js/symbol/key-for');
require('@babel/runtime-corejs3/core-js/object/prevent-extensions');
require('@babel/runtime-corejs3/core-js/object/seal');
require('@babel/runtime-corejs3/core-js/object/get-prototype-of');
require('@babel/runtime-corejs3/core-js/symbol/replace');
require('@babel/runtime-corejs3/core-js/instance/bind');
require('@babel/runtime-corejs3/core-js/instance/splice');
require('@babel/runtime-corejs3/core-js/instance/repeat');
require('@babel/runtime-corejs3/core-js/instance/reduce');
require('@babel/runtime-corejs3/core-js/instance/reverse');

var implicitArrowLinebreak = utils.createRule({
  name: "implicit-arrow-linebreak",
  package: "js",
  meta: {
    type: "layout",
    docs: {
      description: "Enforce the location of arrow function bodies"
    },
    fixable: "whitespace",
    schema: [{
      type: "string",
      enum: ["beside", "below"]
    }],
    messages: {
      expected: "Expected a linebreak before this expression.",
      unexpected: "Expected no linebreak before this expression."
    }
  },
  create(context) {
    const sourceCode = context.sourceCode;
    const option = context.options[0] || "beside";
    function validateExpression(node) {
      if (node.body.type === "BlockStatement") return;
      const arrowToken = sourceCode.getTokenBefore(node.body, utils.isNotOpeningParenToken);
      const firstTokenOfBody = sourceCode.getTokenAfter(arrowToken);
      if (arrowToken.loc.end.line === firstTokenOfBody.loc.start.line && option === "below") {
        context.report({
          node: firstTokenOfBody,
          messageId: "expected",
          fix: fixer => fixer.insertTextBefore(firstTokenOfBody, "\n")
        });
      } else if (arrowToken.loc.end.line !== firstTokenOfBody.loc.start.line && option === "beside") {
        context.report({
          node: firstTokenOfBody,
          messageId: "unexpected",
          fix(fixer) {
            if (sourceCode.getFirstTokenBetween(arrowToken, firstTokenOfBody, {
              includeComments: true,
              filter: utils.isCommentToken
            })) return null;
            return fixer.replaceTextRange([arrowToken.range[1], firstTokenOfBody.range[0]], " ");
          }
        });
      }
    }
    return {
      ArrowFunctionExpression: node => validateExpression(node)
    };
  }
});

module.exports = implicitArrowLinebreak;