Constnium/node_modules/es-abstract/2016/SplitMatch.js
2022-06-23 02:27:43 +02:00

38 lines
874 B
JavaScript

'use strict';
var GetIntrinsic = require('get-intrinsic');
var callBound = require('call-bind/callBound');
var $TypeError = GetIntrinsic('%TypeError%');
var IsInteger = require('./IsInteger');
var Type = require('./Type');
var $charAt = callBound('String.prototype.charAt');
// https://262.ecma-international.org/6.0/#sec-splitmatch
module.exports = function SplitMatch(S, q, R) {
if (Type(S) !== 'String') {
throw new $TypeError('Assertion failed: `S` must be a String');
}
if (!IsInteger(q)) {
throw new $TypeError('Assertion failed: `q` must be an integer');
}
if (Type(R) !== 'String') {
throw new $TypeError('Assertion failed: `R` must be a String');
}
var r = R.length;
var s = S.length;
if (q + r > s) {
return false;
}
for (var i = 0; i < r; i += 1) {
if ($charAt(S, q + i) !== $charAt(R, i)) {
return false;
}
}
return q + r;
};