'use strict'; var GetIntrinsic = require('get-intrinsic'); var $TypeError = GetIntrinsic('%TypeError%'); var ArrayCreate = require('./ArrayCreate'); var CreateDataPropertyOrThrow = require('./CreateDataPropertyOrThrow'); var GetMatchIndexPair = require('./GetMatchIndexPair'); var IsArray = require('./IsArray'); var OrdinaryObjectCreate = require('./OrdinaryObjectCreate'); var ToString = require('./ToString'); var Type = require('./Type'); var every = require('../helpers/every'); var isMatchRecord = require('../helpers/isMatchRecord'); var isStringOrUndefined = function isStringOrUndefined(s) { return typeof s === 'undefined' || typeof s === 'string'; }; var isMatchRecordOrUndefined = function isMatchRecordOrUndefined(m) { return typeof m === 'undefined' || isMatchRecord(m); }; var MAX_ARRAY_LENGTH = Math.pow(2, 32) - 1; // https://262.ecma-international.org/13.0/#sec-getmatchindexpair module.exports = function MakeMatchIndicesIndexPairArray(S, indices, groupNames, hasGroups) { if (Type(S) !== 'String') { throw new $TypeError('Assertion failed: `S` must be a String'); } if (!IsArray(indices) || !every(indices, isMatchRecordOrUndefined)) { throw new $TypeError('Assertion failed: `indices` must be a List of either Match Records or `undefined`'); } if (!IsArray(groupNames) || !every(groupNames, isStringOrUndefined)) { throw new $TypeError('Assertion failed: `groupNames` must be a List of either Strings or `undefined`'); } if (Type(hasGroups) !== 'Boolean') { throw new $TypeError('Assertion failed: `hasGroups` must be a Boolean'); } var n = indices.length; // step 1 if (!(n < MAX_ARRAY_LENGTH)) { throw new $TypeError('Assertion failed: `indices` length must be less than the max array size, 2**32 - 1'); } if (groupNames.length !== n - 1) { throw new $TypeError('Assertion failed: `groupNames` must have exactly one fewer item than `indices`'); } var A = ArrayCreate(n); // step 5 var groups = hasGroups ? OrdinaryObjectCreate(null) : void undefined; // step 6-7 CreateDataPropertyOrThrow(A, 'groups', groups); // step 8 for (var i = 0; i < n; i += 1) { // step 9 var matchIndices = indices[i]; // step 9.a // eslint-disable-next-line no-negated-condition var matchIndexPair = typeof matchIndices !== 'undefined' ? GetMatchIndexPair(S, matchIndices) : void undefined; // step 9.b-9.c CreateDataPropertyOrThrow(A, ToString(i), matchIndexPair); // step 9.d if (i > 0 && typeof groupNames[i - 1] !== 'undefined') { // step 9.e if (!groups) { throw new $TypeError('if `hasGroups` is `false`, `groupNames` can only contain `undefined` values'); } CreateDataPropertyOrThrow(groups, groupNames[i - 1], matchIndexPair); // step 9.e.i } } return A; // step 10 };