1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef BASE_NULLABLE_STRING16_H_ 6 #define BASE_NULLABLE_STRING16_H_ 7 8 #include "base/string16.h" 9 10 // This class is a simple wrapper for string16 which also contains a null 11 // state. This should be used only where the difference between null and 12 // empty is meaningful. 13 class NullableString16 { 14 public: NullableString16()15 NullableString16() : is_null_(false) { } NullableString16(bool is_null)16 explicit NullableString16(bool is_null) : is_null_(is_null) { } NullableString16(const string16 & string,bool is_null)17 NullableString16(const string16& string, bool is_null) 18 : string_(string), is_null_(is_null) { 19 } 20 string()21 const string16& string() const { return string_; } is_null()22 bool is_null() const { return is_null_; } 23 24 private: 25 string16 string_; 26 bool is_null_; 27 }; 28 29 #endif // BASE_NULLABLE_STRING16_H_ 30