eslint-plugin-stylistic-compat/dist/rules/no-mixed-operators.js

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

'use strict';

var _concatInstanceProperty = require('@babel/runtime-corejs3/core-js/instance/concat');
var _someInstanceProperty = require('@babel/runtime-corejs3/core-js/instance/some');
var _includesInstanceProperty = require('@babel/runtime-corejs3/core-js/instance/includes');
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/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/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/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 _context;
const ARITHMETIC_OPERATORS = ["+", "-", "*", "/", "%", "**"];
const BITWISE_OPERATORS = ["&", "|", "^", "~", "<<", ">>", ">>>"];
const COMPARISON_OPERATORS = ["==", "!=", "===", "!==", ">", ">=", "<", "<="];
const LOGICAL_OPERATORS = ["&&", "||"];
const RELATIONAL_OPERATORS = ["in", "instanceof"];
const TERNARY_OPERATOR = ["?:"];
const COALESCE_OPERATOR = ["??"];
const ALL_OPERATORS = _concatInstanceProperty(_context = []).call(_context, ARITHMETIC_OPERATORS, BITWISE_OPERATORS, COMPARISON_OPERATORS, LOGICAL_OPERATORS, RELATIONAL_OPERATORS, TERNARY_OPERATOR, COALESCE_OPERATOR);
const DEFAULT_GROUPS = [ARITHMETIC_OPERATORS, BITWISE_OPERATORS, COMPARISON_OPERATORS, LOGICAL_OPERATORS, RELATIONAL_OPERATORS];
const TARGET_NODE_TYPE = /^(?:Binary|Logical|Conditional)Expression$/u;
function normalizeOptions(options = {}) {
  const hasGroups = options.groups && options.groups.length > 0;
  const groups = hasGroups ? options.groups : DEFAULT_GROUPS;
  const allowSamePrecedence = options.allowSamePrecedence !== false;
  return {
    groups,
    allowSamePrecedence
  };
}
function includesBothInAGroup(groups, left, right) {
  return _someInstanceProperty(groups).call(groups, group => _includesInstanceProperty(group).call(group, left) && _includesInstanceProperty(group).call(group, right));
}
function getChildNode(node) {
  return node.type === "ConditionalExpression" ? node.test : node.left;
}
var noMixedOperators = utils.createRule({
  name: "no-mixed-operators",
  package: "js",
  meta: {
    type: "layout",
    docs: {
      description: "Disallow mixed binary operators"
    },
    schema: [{
      type: "object",
      properties: {
        groups: {
          type: "array",
          items: {
            type: "array",
            items: {
              type: "string",
              enum: ALL_OPERATORS
            },
            minItems: 2,
            uniqueItems: true
          },
          uniqueItems: true
        },
        allowSamePrecedence: {
          type: "boolean",
          default: true
        }
      },
      additionalProperties: false
    }],
    messages: {
      unexpectedMixedOperator: "Unexpected mix of '{{leftOperator}}' and '{{rightOperator}}'. Use parentheses to clarify the intended order of operations."
    }
  },
  create(context) {
    const sourceCode = context.sourceCode;
    const options = normalizeOptions(context.options[0]);
    function shouldIgnore(node) {
      var _options$groups;
      const a = node;
      const b = node.parent;
      return !includesBothInAGroup((_options$groups = options.groups) != null ? _options$groups : [], a.operator, b.type === "ConditionalExpression" ? "?:" : b.operator) || options.allowSamePrecedence && utils.getPrecedence(a) === utils.getPrecedence(b);
    }
    function isMixedWithParent(node) {
      return node.operator !== node.parent.operator && !utils.isParenthesised(sourceCode, node);
    }
    function getOperatorToken(node) {
      return sourceCode.getTokenAfter(getChildNode(node), utils.isNotClosingParenToken);
    }
    function reportBothOperators(node) {
      const parent = node.parent;
      const left = getChildNode(parent) === node ? node : parent;
      const right = getChildNode(parent) !== node ? node : parent;
      const data = {
        leftOperator: left.operator || "?:",
        rightOperator: right.operator || "?:"
      };
      context.report({
        node: left,
        loc: getOperatorToken(left).loc,
        messageId: "unexpectedMixedOperator",
        data
      });
      context.report({
        node: right,
        loc: getOperatorToken(right).loc,
        messageId: "unexpectedMixedOperator",
        data
      });
    }
    function check(node) {
      if (TARGET_NODE_TYPE.test(node.parent.type) && isMixedWithParent(node) && !shouldIgnore(node)) {
        reportBothOperators(node);
      }
    }
    return {
      BinaryExpression: check,
      LogicalExpression: check
    };
  }
});

module.exports = noMixedOperators;