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ostreamwrapper.h
1// Tencent is pleased to support the open source community by making RapidJSON available.
2//
3// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved.
4//
5// Licensed under the MIT License (the "License"); you may not use this file except
6// in compliance with the License. You may obtain a copy of the License at
7//
8// http://opensource.org/licenses/MIT
9//
10// Unless required by applicable law or agreed to in writing, software distributed
11// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
12// CONDITIONS OF ANY KIND, either express or implied. See the License for the
13// specific language governing permissions and limitations under the License.
14
15#ifndef RAPIDJSON_OSTREAMWRAPPER_H_
16#define RAPIDJSON_OSTREAMWRAPPER_H_
17
18#include "stream.h"
19#include <iosfwd>
20
21#ifdef __clang__
22RAPIDJSON_DIAG_PUSH
23RAPIDJSON_DIAG_OFF(padded)
24#endif
25
26RAPIDJSON_NAMESPACE_BEGIN
27
28//! Wrapper of \c std::basic_ostream into RapidJSON's Stream concept.
29/*!
30 The classes can be wrapped including but not limited to:
31
32 - \c std::ostringstream
33 - \c std::stringstream
34 - \c std::wpstringstream
35 - \c std::wstringstream
36 - \c std::ifstream
37 - \c std::fstream
38 - \c std::wofstream
39 - \c std::wfstream
40
41 \tparam StreamType Class derived from \c std::basic_ostream.
42*/
43
44 template <typename StreamType>
45 class BasicOStreamWrapper {
46 public:
47 typedef typename StreamType::char_type Ch;
48 BasicOStreamWrapper(StreamType& stream) : stream_(stream) {}
49
50 void Put(Ch c) {
51 stream_.put(c);
52 }
53
54 void Flush() {
55 stream_.flush();
56 }
57
58 // Not implemented
59 char Peek() const { RAPIDJSON_ASSERT(false); return 0; }
60 char Take() { RAPIDJSON_ASSERT(false); return 0; }
61 size_t Tell() const { RAPIDJSON_ASSERT(false); return 0; }
62 char* PutBegin() { RAPIDJSON_ASSERT(false); return 0; }
63 size_t PutEnd(char*) { RAPIDJSON_ASSERT(false); return 0; }
64
65 private:
66 BasicOStreamWrapper(const BasicOStreamWrapper&);
67 BasicOStreamWrapper& operator=(const BasicOStreamWrapper&);
68
69 StreamType& stream_;
70};
71
72 typedef BasicOStreamWrapper<std::ostream> OStreamWrapper;
73 typedef BasicOStreamWrapper<std::wostream> WOStreamWrapper;
74
75#ifdef __clang__
76RAPIDJSON_DIAG_POP
77#endif
78
79RAPIDJSON_NAMESPACE_END
80
81#endif // RAPIDJSON_OSTREAMWRAPPER_H_
rapidjson::BasicOStreamWrapper
Wrapper of std::basic_ostream into RapidJSON's Stream concept.
定义 ostreamwrapper.h:45
RAPIDJSON_ASSERT
#define RAPIDJSON_ASSERT(x)
Assertion.
定义 rapidjson.h:402