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-rw-r--r--thirdparty/rapidjson/stringbuffer.h117
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diff --git a/thirdparty/rapidjson/stringbuffer.h b/thirdparty/rapidjson/stringbuffer.h
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+// Tencent is pleased to support the open source community by making RapidJSON available.
+//
+// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved.
+//
+// Licensed under the MIT License (the "License"); you may not use this file except
+// in compliance with the License. You may obtain a copy of the License at
+//
+// http://opensource.org/licenses/MIT
+//
+// Unless required by applicable law or agreed to in writing, software distributed
+// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
+// CONDITIONS OF ANY KIND, either express or implied. See the License for the
+// specific language governing permissions and limitations under the License.
+
+#ifndef RAPIDJSON_STRINGBUFFER_H_
+#define RAPIDJSON_STRINGBUFFER_H_
+
+#include "stream.h"
+#include "internal/stack.h"
+
+#if RAPIDJSON_HAS_CXX11_RVALUE_REFS
+#include <utility> // std::move
+#endif
+
+#include "internal/stack.h"
+
+#if defined(__clang__)
+RAPIDJSON_DIAG_PUSH
+RAPIDJSON_DIAG_OFF(c++98-compat)
+#endif
+
+RAPIDJSON_NAMESPACE_BEGIN
+
+//! Represents an in-memory output stream.
+/*!
+ \tparam Encoding Encoding of the stream.
+ \tparam Allocator type for allocating memory buffer.
+ \note implements Stream concept
+*/
+template <typename Encoding, typename Allocator = CrtAllocator>
+class GenericStringBuffer {
+public:
+ typedef typename Encoding::Ch Ch;
+
+ GenericStringBuffer(Allocator* allocator = 0, size_t capacity = kDefaultCapacity) : stack_(allocator, capacity) {}
+
+#if RAPIDJSON_HAS_CXX11_RVALUE_REFS
+ GenericStringBuffer(GenericStringBuffer&& rhs) : stack_(std::move(rhs.stack_)) {}
+ GenericStringBuffer& operator=(GenericStringBuffer&& rhs) {
+ if (&rhs != this)
+ stack_ = std::move(rhs.stack_);
+ return *this;
+ }
+#endif
+
+ void Put(Ch c) { *stack_.template Push<Ch>() = c; }
+ void PutUnsafe(Ch c) { *stack_.template PushUnsafe<Ch>() = c; }
+ void Flush() {}
+
+ void Clear() { stack_.Clear(); }
+ void ShrinkToFit() {
+ // Push and pop a null terminator. This is safe.
+ *stack_.template Push<Ch>() = '\0';
+ stack_.ShrinkToFit();
+ stack_.template Pop<Ch>(1);
+ }
+
+ void Reserve(size_t count) { stack_.template Reserve<Ch>(count); }
+ Ch* Push(size_t count) { return stack_.template Push<Ch>(count); }
+ Ch* PushUnsafe(size_t count) { return stack_.template PushUnsafe<Ch>(count); }
+ void Pop(size_t count) { stack_.template Pop<Ch>(count); }
+
+ const Ch* GetString() const {
+ // Push and pop a null terminator. This is safe.
+ *stack_.template Push<Ch>() = '\0';
+ stack_.template Pop<Ch>(1);
+
+ return stack_.template Bottom<Ch>();
+ }
+
+ size_t GetSize() const { return stack_.GetSize(); }
+
+ static const size_t kDefaultCapacity = 256;
+ mutable internal::Stack<Allocator> stack_;
+
+private:
+ // Prohibit copy constructor & assignment operator.
+ GenericStringBuffer(const GenericStringBuffer&);
+ GenericStringBuffer& operator=(const GenericStringBuffer&);
+};
+
+//! String buffer with UTF8 encoding
+typedef GenericStringBuffer<UTF8<> > StringBuffer;
+
+template<typename Encoding, typename Allocator>
+inline void PutReserve(GenericStringBuffer<Encoding, Allocator>& stream, size_t count) {
+ stream.Reserve(count);
+}
+
+template<typename Encoding, typename Allocator>
+inline void PutUnsafe(GenericStringBuffer<Encoding, Allocator>& stream, typename Encoding::Ch c) {
+ stream.PutUnsafe(c);
+}
+
+//! Implement specialized version of PutN() with memset() for better performance.
+template<>
+inline void PutN(GenericStringBuffer<UTF8<> >& stream, char c, size_t n) {
+ std::memset(stream.stack_.Push<char>(n), c, n * sizeof(c));
+}
+
+RAPIDJSON_NAMESPACE_END
+
+#if defined(__clang__)
+RAPIDJSON_DIAG_POP
+#endif
+
+#endif // RAPIDJSON_STRINGBUFFER_H_