清空

2023-12-13 11:25:22 +08:00
parent 7c2ab0b7ad
commit cff33ad7d1
6370 changed files with 378844 additions and 82245 deletions
@@ -0,0 +1,26 @@
+'use strict';
+var PROPER_FUNCTION_NAME = require('../internals/function-name').PROPER;
+var defineBuiltIn = require('../internals/define-built-in');
+var anObject = require('../internals/an-object');
+var $toString = require('../internals/to-string');
+var fails = require('../internals/fails');
+var getRegExpFlags = require('../internals/regexp-get-flags');
+
+var TO_STRING = 'toString';
+var RegExpPrototype = RegExp.prototype;
+var nativeToString = RegExpPrototype[TO_STRING];
+
+var NOT_GENERIC = fails(function () { return nativeToString.call({ source: 'a', flags: 'b' }) !== '/a/b'; });
+// FF44- RegExp#toString has a wrong name
+var INCORRECT_NAME = PROPER_FUNCTION_NAME && nativeToString.name !== TO_STRING;
+
+// `RegExp.prototype.toString` method
+// https://tc39.es/ecma262/#sec-regexp.prototype.tostring
+if (NOT_GENERIC || INCORRECT_NAME) {
+  defineBuiltIn(RegExp.prototype, TO_STRING, function toString() {
+    var R = anObject(this);
+    var pattern = $toString(R.source);
+    var flags = $toString(getRegExpFlags(R));
+    return '/' + pattern + '/' + flags;
+  }, { unsafe: true });
+}