mirror of
https://github.com/Tencent/MMKV.git
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guoling
71 lines
2.0 KiB
C++
71 lines
2.0 KiB
C++
/*
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* Tencent is pleased to support the open source community by making
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* MMKV available.
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*
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* Copyright (C) 2019 THL A29 Limited, a Tencent company.
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* All rights reserved.
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*
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* Licensed under the BSD 3-Clause License (the "License"); you may not use
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* this file except in compliance with the License. You may obtain a copy of
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* the License at
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*
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* https://opensource.org/licenses/BSD-3-Clause
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "CodedInputData.h"
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#ifdef MMKV_IOS_OR_MAC
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# include "PBUtility.h"
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# include <cassert>
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# include <stdexcept>
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# if __has_feature(objc_arc)
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# error This file must be compiled with MRC. Use -fno-objc-arc flag.
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# endif
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using namespace std;
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namespace mmkv {
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NSString *CodedInputData::readString() {
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int32_t size = this->readRawVarint32();
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if (size <= (m_size - m_position) && size > 0) {
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NSString *result =
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[[[NSString alloc] initWithBytes:(m_ptr + m_position) length:size encoding:NSUTF8StringEncoding]
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autorelease];
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m_position += size;
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return result;
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} else if (size == 0) {
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return @"";
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} else if (size < 0) {
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throw length_error("InvalidProtocolBuffer negativeSize");
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} else {
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throw out_of_range("InvalidProtocolBuffer truncatedMessage");
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}
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return nil;
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}
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NSData *CodedInputData::readNSData() {
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int32_t size = this->readRawVarint32();
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if (size <= m_size - m_position && size > 0) {
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NSData *result = [NSData dataWithBytes:(m_ptr + m_position) length:size];
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m_position += size;
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return result;
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} else if (size < 0) {
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throw length_error("InvalidProtocolBuffer negativeSize");
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return nil;
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}
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return nil;
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}
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} // namespace mmkv
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#endif // MMKV_IOS_OR_MAC
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