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quzhou/node_modules/core-js/internals/regexp-sticky-helpers.js

31 lines
848 B

'use strict';
var fails = require('../internals/fails');
var global = require('../internals/global');
// babel-minify and Closure Compiler transpiles RegExp('a', 'y') -> /a/y and it causes SyntaxError
var $RegExp = global.RegExp;
var UNSUPPORTED_Y = fails(function () {
var re = $RegExp('a', 'y');
re.lastIndex = 2;
return re.exec('abcd') !== null;
});
// UC Browser bug
// https://github.com/zloirock/core-js/issues/1008
var MISSED_STICKY = UNSUPPORTED_Y || fails(function () {
return !$RegExp('a', 'y').sticky;
});
var BROKEN_CARET = UNSUPPORTED_Y || fails(function () {
// https://bugzilla.mozilla.org/show_bug.cgi?id=773687
var re = $RegExp('^r', 'gy');
re.lastIndex = 2;
return re.exec('str') !== null;
});
module.exports = {
BROKEN_CARET: BROKEN_CARET,
MISSED_STICKY: MISSED_STICKY,
UNSUPPORTED_Y: UNSUPPORTED_Y
};