Demo for query storing
Change-Id: I947bcac841992c3f6cfd01ab337c265b0d01cb70
diff --git a/node_modules/es-abstract/2015/AdvanceStringIndex.js b/node_modules/es-abstract/2015/AdvanceStringIndex.js
new file mode 100644
index 0000000..279602b
--- /dev/null
+++ b/node_modules/es-abstract/2015/AdvanceStringIndex.js
@@ -0,0 +1,47 @@
+'use strict';
+
+var GetIntrinsic = require('get-intrinsic');
+
+var IsInteger = require('./IsInteger');
+var Type = require('./Type');
+
+var MAX_SAFE_INTEGER = require('../helpers/maxSafeInteger');
+var isLeadingSurrogate = require('../helpers/isLeadingSurrogate');
+var isTrailingSurrogate = require('../helpers/isTrailingSurrogate');
+
+var $TypeError = GetIntrinsic('%TypeError%');
+
+var $charCodeAt = require('call-bind/callBound')('String.prototype.charCodeAt');
+
+// https://ecma-international.org/ecma-262/6.0/#sec-advancestringindex
+
+module.exports = function AdvanceStringIndex(S, index, unicode) {
+ if (Type(S) !== 'String') {
+ throw new $TypeError('Assertion failed: `S` must be a String');
+ }
+ if (!IsInteger(index) || index < 0 || index > MAX_SAFE_INTEGER) {
+ throw new $TypeError('Assertion failed: `length` must be an integer >= 0 and <= 2**53');
+ }
+ if (Type(unicode) !== 'Boolean') {
+ throw new $TypeError('Assertion failed: `unicode` must be a Boolean');
+ }
+ if (!unicode) {
+ return index + 1;
+ }
+ var length = S.length;
+ if ((index + 1) >= length) {
+ return index + 1;
+ }
+
+ var first = $charCodeAt(S, index);
+ if (!isLeadingSurrogate(first)) {
+ return index + 1;
+ }
+
+ var second = $charCodeAt(S, index + 1);
+ if (!isTrailingSurrogate(second)) {
+ return index + 1;
+ }
+
+ return index + 2;
+};