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   
44template <typename StreamType>
45class BasicOStreamWrapper {
46public:
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
65private:
66    BasicOStreamWrapper(const BasicOStreamWrapper&);
67    BasicOStreamWrapper& operator=(const BasicOStreamWrapper&);
68
69    StreamType& stream_;
70};
71
72typedef BasicOStreamWrapper<std::ostream> OStreamWrapper;
73typedef BasicOStreamWrapper<std::wostream> WOStreamWrapper;
74
75#ifdef __clang__
76RAPIDJSON_DIAG_POP
77#endif
78
79RAPIDJSON_NAMESPACE_END
80
81#endif // RAPIDJSON_OSTREAMWRAPPER_H_