|  | /* | 
|  | *  Copyright 2015 The WebRTC Project Authors. All rights reserved. | 
|  | * | 
|  | *  Use of this source code is governed by a BSD-style license | 
|  | *  that can be found in the LICENSE file in the root of the source | 
|  | *  tree. An additional intellectual property rights grant can be found | 
|  | *  in the file PATENTS.  All contributing project authors may | 
|  | *  be found in the AUTHORS file in the root of the source tree. | 
|  | */ | 
|  |  | 
|  | #include "rtc_base/crypt_string.h" | 
|  |  | 
|  | namespace rtc { | 
|  |  | 
|  | size_t EmptyCryptStringImpl::GetLength() const { | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | void EmptyCryptStringImpl::CopyTo(char* dest, bool nullterminate) const { | 
|  | if (nullterminate) { | 
|  | *dest = '\0'; | 
|  | } | 
|  | } | 
|  |  | 
|  | std::string EmptyCryptStringImpl::UrlEncode() const { | 
|  | return ""; | 
|  | } | 
|  |  | 
|  | CryptStringImpl* EmptyCryptStringImpl::Copy() const { | 
|  | return new EmptyCryptStringImpl(); | 
|  | } | 
|  |  | 
|  | void EmptyCryptStringImpl::CopyRawTo(std::vector<unsigned char>* dest) const { | 
|  | dest->clear(); | 
|  | } | 
|  |  | 
|  | CryptString::CryptString() : impl_(new EmptyCryptStringImpl()) {} | 
|  |  | 
|  | CryptString::CryptString(const CryptString& other) | 
|  | : impl_(other.impl_->Copy()) {} | 
|  |  | 
|  | CryptString::CryptString(const CryptStringImpl& impl) : impl_(impl.Copy()) {} | 
|  |  | 
|  | CryptString::~CryptString() = default; | 
|  |  | 
|  | }  // namespace rtc |