rapidjson.h Source File

rapidjson.h Source File#

Composable Kernel: rapidjson.h Source File
// 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.
//
// 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_RAPIDJSON_H_
#define RAPIDJSON_RAPIDJSON_H_
 
#include <cstdlib> // malloc(), realloc(), free(), size_t
#include <cstring> // memset(), memcpy(), memmove(), memcmp()
// RAPIDJSON_VERSION_STRING
//
// ALWAYS synchronize the following 3 macros with corresponding variables in /CMakeLists.txt.
//
// token stringification
#define RAPIDJSON_STRINGIFY(x) RAPIDJSON_DO_STRINGIFY(x)
#define RAPIDJSON_DO_STRINGIFY(x) #x
 
// token concatenation
#define RAPIDJSON_JOIN(X, Y) RAPIDJSON_DO_JOIN(X, Y)
#define RAPIDJSON_DO_JOIN(X, Y) RAPIDJSON_DO_JOIN2(X, Y)
#define RAPIDJSON_DO_JOIN2(X, Y) X##Y
#define RAPIDJSON_MAJOR_VERSION 1
#define RAPIDJSON_MINOR_VERSION 1
#define RAPIDJSON_PATCH_VERSION 0
#define RAPIDJSON_VERSION_STRING \
    RAPIDJSON_STRINGIFY(RAPIDJSON_MAJOR_VERSION.RAPIDJSON_MINOR_VERSION.RAPIDJSON_PATCH_VERSION)
// RAPIDJSON_NAMESPACE_(BEGIN|END)
#ifndef RAPIDJSON_NAMESPACE
#define RAPIDJSON_NAMESPACE rapidjson
#endif
#ifndef RAPIDJSON_NAMESPACE_BEGIN
#define RAPIDJSON_NAMESPACE_BEGIN namespace RAPIDJSON_NAMESPACE {
#endif
#ifndef RAPIDJSON_NAMESPACE_END
#define RAPIDJSON_NAMESPACE_END }
#endif
// __cplusplus macro
 
#if defined(_MSC_VER)
#define RAPIDJSON_CPLUSPLUS _MSVC_LANG
#else
#define RAPIDJSON_CPLUSPLUS __cplusplus
#endif
// RAPIDJSON_HAS_STDSTRING
 
#ifndef RAPIDJSON_HAS_STDSTRING
#ifdef RAPIDJSON_DOXYGEN_RUNNING
#define RAPIDJSON_HAS_STDSTRING 1 // force generation of documentation
#else
#define RAPIDJSON_HAS_STDSTRING 0 // no std::string support by default
#endif
#endif // !defined(RAPIDJSON_HAS_STDSTRING)
 
#if RAPIDJSON_HAS_STDSTRING
#include <string>
#endif // RAPIDJSON_HAS_STDSTRING
// RAPIDJSON_USE_MEMBERSMAP
#ifndef RAPIDJSON_USE_MEMBERSMAP
#define RAPIDJSON_USE_MEMBERSMAP 0 // not by default
#endif
// RAPIDJSON_NO_INT64DEFINE
#ifndef RAPIDJSON_NO_INT64DEFINE
#if defined(_MSC_VER) && (_MSC_VER < 1800) // Visual Studio 2013
#include "msinttypes/stdint.h"
#include "msinttypes/inttypes.h"
#else
// Other compilers should have this.
#include <stdint.h>
#include <inttypes.h>
#endif
#ifdef RAPIDJSON_DOXYGEN_RUNNING
#define RAPIDJSON_NO_INT64DEFINE
#endif
#endif // RAPIDJSON_NO_INT64TYPEDEF
// RAPIDJSON_FORCEINLINE
 
#ifndef RAPIDJSON_FORCEINLINE
#if defined(_MSC_VER) && defined(NDEBUG)
#define RAPIDJSON_FORCEINLINE __forceinline
#elif defined(__GNUC__) && __GNUC__ >= 4 && defined(NDEBUG)
#define RAPIDJSON_FORCEINLINE __attribute__((always_inline))
#else
#define RAPIDJSON_FORCEINLINE
#endif
#endif // RAPIDJSON_FORCEINLINE
// RAPIDJSON_ENDIAN
#define RAPIDJSON_LITTLEENDIAN 0 
#define RAPIDJSON_BIGENDIAN 1    
#ifndef RAPIDJSON_ENDIAN
// Detect with GCC 4.6's macro
#ifdef __BYTE_ORDER__
#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
#define RAPIDJSON_ENDIAN RAPIDJSON_LITTLEENDIAN
#elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
#define RAPIDJSON_ENDIAN RAPIDJSON_BIGENDIAN
#else
#error Unknown machine endianness detected. User needs to define RAPIDJSON_ENDIAN.
#endif // __BYTE_ORDER__
// Detect with GLIBC's endian.h
#elif defined(__GLIBC__)
#include <endian.h>
#if(__BYTE_ORDER == __LITTLE_ENDIAN)
#define RAPIDJSON_ENDIAN RAPIDJSON_LITTLEENDIAN
#elif(__BYTE_ORDER == __BIG_ENDIAN)
#define RAPIDJSON_ENDIAN RAPIDJSON_BIGENDIAN
#else
#error Unknown machine endianness detected. User needs to define RAPIDJSON_ENDIAN.
#endif // __GLIBC__
// Detect with _LITTLE_ENDIAN and _BIG_ENDIAN macro
#elif defined(_LITTLE_ENDIAN) && !defined(_BIG_ENDIAN)
#define RAPIDJSON_ENDIAN RAPIDJSON_LITTLEENDIAN
#elif defined(_BIG_ENDIAN) && !defined(_LITTLE_ENDIAN)
#define RAPIDJSON_ENDIAN RAPIDJSON_BIGENDIAN
// Detect with architecture macros
#elif defined(__sparc) || defined(__sparc__) || defined(_POWER) || defined(__powerpc__) || \
    defined(__ppc__) || defined(__ppc64__) || defined(__hpux) || defined(__hppa) ||        \
    defined(_MIPSEB) || defined(_POWER) || defined(__s390__)
#define RAPIDJSON_ENDIAN RAPIDJSON_BIGENDIAN
#elif defined(__i386__) || defined(__alpha__) || defined(__ia64) || defined(__ia64__) ||   \
    defined(_M_IX86) || defined(_M_IA64) || defined(_M_ALPHA) || defined(__amd64) ||       \
    defined(__amd64__) || defined(_M_AMD64) || defined(__x86_64) || defined(__x86_64__) || \
    defined(_M_X64) || defined(__bfin__)
#define RAPIDJSON_ENDIAN RAPIDJSON_LITTLEENDIAN
#elif defined(_MSC_VER) && (defined(_M_ARM) || defined(_M_ARM64))
#define RAPIDJSON_ENDIAN RAPIDJSON_LITTLEENDIAN
#elif defined(RAPIDJSON_DOXYGEN_RUNNING)
#define RAPIDJSON_ENDIAN
#else
#error Unknown machine endianness detected. User needs to define RAPIDJSON_ENDIAN.
#endif
#endif // RAPIDJSON_ENDIAN
// RAPIDJSON_64BIT
#ifndef RAPIDJSON_64BIT
#if defined(__LP64__) || (defined(__x86_64__) && defined(__ILP32__)) || defined(_WIN64) || \
    defined(__EMSCRIPTEN__)
#define RAPIDJSON_64BIT 1
#else
#define RAPIDJSON_64BIT 0
#endif
#endif // RAPIDJSON_64BIT
// RAPIDJSON_ALIGN
#ifndef RAPIDJSON_ALIGN
#define RAPIDJSON_ALIGN(x) (((x) + static_cast<size_t>(7u)) & ~static_cast<size_t>(7u))
#endif
// RAPIDJSON_UINT64_C2
#ifndef RAPIDJSON_UINT64_C2
#define RAPIDJSON_UINT64_C2(high32, low32) \
    ((static_cast<uint64_t>(high32) << 32) | static_cast<uint64_t>(low32))
#endif
// RAPIDJSON_48BITPOINTER_OPTIMIZATION
#ifndef RAPIDJSON_48BITPOINTER_OPTIMIZATION
#if defined(__amd64__) || defined(__amd64) || defined(__x86_64__) || defined(__x86_64) || \
    defined(_M_X64) || defined(_M_AMD64)
#define RAPIDJSON_48BITPOINTER_OPTIMIZATION 1
#else
#define RAPIDJSON_48BITPOINTER_OPTIMIZATION 0
#endif
#endif // RAPIDJSON_48BITPOINTER_OPTIMIZATION
 
#if RAPIDJSON_48BITPOINTER_OPTIMIZATION == 1
#if RAPIDJSON_64BIT != 1
#error RAPIDJSON_48BITPOINTER_OPTIMIZATION can only be set to 1 when RAPIDJSON_64BIT=1
#endif
#define RAPIDJSON_SETPOINTER(type, p, x)                                         \
    (p = reinterpret_cast<type*>(                                                \
         (reinterpret_cast<uintptr_t>(p) &                                       \
          static_cast<uintptr_t>(RAPIDJSON_UINT64_C2(0xFFFF0000, 0x00000000))) | \
         reinterpret_cast<uintptr_t>(reinterpret_cast<const void*>(x))))
#define RAPIDJSON_GETPOINTER(type, p)                         \
    (reinterpret_cast<type*>(reinterpret_cast<uintptr_t>(p) & \
                             static_cast<uintptr_t>(RAPIDJSON_UINT64_C2(0x0000FFFF, 0xFFFFFFFF))))
#else
#define RAPIDJSON_SETPOINTER(type, p, x) (p = (x))
#define RAPIDJSON_GETPOINTER(type, p) (p)
#endif
// RAPIDJSON_SSE2/RAPIDJSON_SSE42/RAPIDJSON_NEON/RAPIDJSON_SIMD
#if defined(RAPIDJSON_SSE2) || defined(RAPIDJSON_SSE42) || defined(RAPIDJSON_NEON) || \
    defined(RAPIDJSON_DOXYGEN_RUNNING)
#define RAPIDJSON_SIMD
#endif
// RAPIDJSON_NO_SIZETYPEDEFINE
 
#ifndef RAPIDJSON_NO_SIZETYPEDEFINE
#ifdef RAPIDJSON_DOXYGEN_RUNNING
#define RAPIDJSON_NO_SIZETYPEDEFINE
#endif
RAPIDJSON_NAMESPACE_BEGIN
typedef unsigned SizeType;
RAPIDJSON_NAMESPACE_END
#endif
 
// always import std::size_t to rapidjson namespace
RAPIDJSON_NAMESPACE_BEGIN
using std::size_t;
RAPIDJSON_NAMESPACE_END
// RAPIDJSON_ASSERT
#ifndef RAPIDJSON_ASSERT
#include <cassert>
#define RAPIDJSON_ASSERT(x) assert(x)
#endif // RAPIDJSON_ASSERT
// RAPIDJSON_STATIC_ASSERT
 
// Prefer C++11 static_assert, if available
#ifndef RAPIDJSON_STATIC_ASSERT
#if RAPIDJSON_CPLUSPLUS >= 201103L || (defined(_MSC_VER) && _MSC_VER >= 1800)
#define RAPIDJSON_STATIC_ASSERT(x) static_assert(x, RAPIDJSON_STRINGIFY(x))
#endif // C++11
#endif // RAPIDJSON_STATIC_ASSERT
 
// Adopt C++03 implementation from boost
#ifndef RAPIDJSON_STATIC_ASSERT
#ifndef __clang__
#endif
RAPIDJSON_NAMESPACE_BEGIN
template <bool x>
struct STATIC_ASSERTION_FAILURE;
template <>
struct STATIC_ASSERTION_FAILURE<true>
{
    enum
    {
        value = 1
    };
};
template <size_t x>
struct StaticAssertTest
{
};
RAPIDJSON_NAMESPACE_END
 
#if defined(__GNUC__) || defined(__clang__)
#define RAPIDJSON_STATIC_ASSERT_UNUSED_ATTRIBUTE __attribute__((unused))
#else
#define RAPIDJSON_STATIC_ASSERT_UNUSED_ATTRIBUTE
#endif
#ifndef __clang__
#endif
#define RAPIDJSON_STATIC_ASSERT(x)                                 \
    typedef ::RAPIDJSON_NAMESPACE::StaticAssertTest<sizeof(        \
        ::RAPIDJSON_NAMESPACE::STATIC_ASSERTION_FAILURE<bool(x)>)> \
    RAPIDJSON_JOIN(StaticAssertTypedef, __LINE__) RAPIDJSON_STATIC_ASSERT_UNUSED_ATTRIBUTE
#endif // RAPIDJSON_STATIC_ASSERT
// RAPIDJSON_LIKELY, RAPIDJSON_UNLIKELY
#ifndef RAPIDJSON_LIKELY
#if defined(__GNUC__) || defined(__clang__)
#define RAPIDJSON_LIKELY(x) __builtin_expect(!!(x), 1)
#else
#define RAPIDJSON_LIKELY(x) (x)
#endif
#endif
#ifndef RAPIDJSON_UNLIKELY
#if defined(__GNUC__) || defined(__clang__)
#define RAPIDJSON_UNLIKELY(x) __builtin_expect(!!(x), 0)
#else
#define RAPIDJSON_UNLIKELY(x) (x)
#endif
#endif
// Helpers
 
#define RAPIDJSON_MULTILINEMACRO_BEGIN \
    do                                 \
    {
#define RAPIDJSON_MULTILINEMACRO_END \
    }                                \
    while((void)0, 0)
 
// adopted from Boost
#define RAPIDJSON_VERSION_CODE(x, y, z) (((x) * 100000) + ((y) * 100) + (z))
 
#if defined(__has_builtin)
#define RAPIDJSON_HAS_BUILTIN(x) __has_builtin(x)
#else
#define RAPIDJSON_HAS_BUILTIN(x) 0
#endif
// RAPIDJSON_DIAG_PUSH/POP, RAPIDJSON_DIAG_OFF
 
#if defined(__GNUC__)
#define RAPIDJSON_GNUC RAPIDJSON_VERSION_CODE(__GNUC__, __GNUC_MINOR__, __GNUC_PATCHLEVEL__)
#endif
 
#if defined(__clang__) || \
    (defined(RAPIDJSON_GNUC) && RAPIDJSON_GNUC >= RAPIDJSON_VERSION_CODE(4, 2, 0))
 
#define RAPIDJSON_PRAGMA(x) _Pragma(RAPIDJSON_STRINGIFY(x))
#define RAPIDJSON_DIAG_PRAGMA(x) RAPIDJSON_PRAGMA(GCC diagnostic x)
#define RAPIDJSON_DIAG_OFF(x) \
    RAPIDJSON_DIAG_PRAGMA(ignored RAPIDJSON_STRINGIFY(RAPIDJSON_JOIN(-W, x)))
 
// push/pop support in Clang and GCC>=4.6
#if defined(__clang__) || \
    (defined(RAPIDJSON_GNUC) && RAPIDJSON_GNUC >= RAPIDJSON_VERSION_CODE(4, 6, 0))
#define RAPIDJSON_DIAG_PUSH RAPIDJSON_DIAG_PRAGMA(push)
#define RAPIDJSON_DIAG_POP RAPIDJSON_DIAG_PRAGMA(pop)
#else                       // GCC >= 4.2, < 4.6
#define RAPIDJSON_DIAG_PUSH /* ignored */
#define RAPIDJSON_DIAG_POP  /* ignored */
#endif
 
#elif defined(_MSC_VER)
 
// pragma (MSVC specific)
#define RAPIDJSON_PRAGMA(x) __pragma(x)
#define RAPIDJSON_DIAG_PRAGMA(x) RAPIDJSON_PRAGMA(warning(x))
 
#define RAPIDJSON_DIAG_OFF(x) RAPIDJSON_DIAG_PRAGMA(disable : x)
#define RAPIDJSON_DIAG_PUSH RAPIDJSON_DIAG_PRAGMA(push)
#define RAPIDJSON_DIAG_POP RAPIDJSON_DIAG_PRAGMA(pop)
 
#else
 
#define RAPIDJSON_DIAG_OFF(x) /* ignored */
#define RAPIDJSON_DIAG_PUSH   /* ignored */
#define RAPIDJSON_DIAG_POP    /* ignored */
 
#endif // RAPIDJSON_DIAG_*
// C++11 features
 
#ifndef RAPIDJSON_HAS_CXX11
#define RAPIDJSON_HAS_CXX11 (RAPIDJSON_CPLUSPLUS >= 201103L)
#endif
 
#ifndef RAPIDJSON_HAS_CXX11_RVALUE_REFS
#if RAPIDJSON_HAS_CXX11
#define RAPIDJSON_HAS_CXX11_RVALUE_REFS 1
#elif defined(__clang__)
#if __has_feature(cxx_rvalue_references) && (defined(_MSC_VER) || defined(_LIBCPP_VERSION) || \
                                             defined(__GLIBCXX__) && __GLIBCXX__ >= 20080306)
#define RAPIDJSON_HAS_CXX11_RVALUE_REFS 1
#else
#define RAPIDJSON_HAS_CXX11_RVALUE_REFS 0
#endif
#elif(defined(RAPIDJSON_GNUC) && (RAPIDJSON_GNUC >= RAPIDJSON_VERSION_CODE(4, 3, 0)) && \
      defined(__GXX_EXPERIMENTAL_CXX0X__)) ||                                           \
    (defined(_MSC_VER) && _MSC_VER >= 1600) ||                                          \
    (defined(__SUNPRO_CC) && __SUNPRO_CC >= 0x5140 && defined(__GXX_EXPERIMENTAL_CXX0X__))
 
#define RAPIDJSON_HAS_CXX11_RVALUE_REFS 1
#else
#define RAPIDJSON_HAS_CXX11_RVALUE_REFS 0
#endif
#endif // RAPIDJSON_HAS_CXX11_RVALUE_REFS
 
#if RAPIDJSON_HAS_CXX11_RVALUE_REFS
#include <utility> // std::move
#endif
 
#ifndef RAPIDJSON_HAS_CXX11_NOEXCEPT
#if RAPIDJSON_HAS_CXX11
#define RAPIDJSON_HAS_CXX11_NOEXCEPT 1
#elif defined(__clang__)
#define RAPIDJSON_HAS_CXX11_NOEXCEPT __has_feature(cxx_noexcept)
#elif(defined(RAPIDJSON_GNUC) && (RAPIDJSON_GNUC >= RAPIDJSON_VERSION_CODE(4, 6, 0)) && \
      defined(__GXX_EXPERIMENTAL_CXX0X__)) ||                                           \
    (defined(_MSC_VER) && _MSC_VER >= 1900) ||                                          \
    (defined(__SUNPRO_CC) && __SUNPRO_CC >= 0x5140 && defined(__GXX_EXPERIMENTAL_CXX0X__))
#define RAPIDJSON_HAS_CXX11_NOEXCEPT 1
#else
#define RAPIDJSON_HAS_CXX11_NOEXCEPT 0
#endif
#endif
#ifndef RAPIDJSON_NOEXCEPT
#if RAPIDJSON_HAS_CXX11_NOEXCEPT
#define RAPIDJSON_NOEXCEPT noexcept
#else
#define RAPIDJSON_NOEXCEPT throw()
#endif // RAPIDJSON_HAS_CXX11_NOEXCEPT
#endif
 
// no automatic detection, yet
#ifndef RAPIDJSON_HAS_CXX11_TYPETRAITS
#if(defined(_MSC_VER) && _MSC_VER >= 1700)
#define RAPIDJSON_HAS_CXX11_TYPETRAITS 1
#else
#define RAPIDJSON_HAS_CXX11_TYPETRAITS 0
#endif
#endif
 
#ifndef RAPIDJSON_HAS_CXX11_RANGE_FOR
#if defined(__clang__)
#define RAPIDJSON_HAS_CXX11_RANGE_FOR __has_feature(cxx_range_for)
#elif(defined(RAPIDJSON_GNUC) && (RAPIDJSON_GNUC >= RAPIDJSON_VERSION_CODE(4, 6, 0)) && \
      defined(__GXX_EXPERIMENTAL_CXX0X__)) ||                                           \
    (defined(_MSC_VER) && _MSC_VER >= 1700) ||                                          \
    (defined(__SUNPRO_CC) && __SUNPRO_CC >= 0x5140 && defined(__GXX_EXPERIMENTAL_CXX0X__))
#define RAPIDJSON_HAS_CXX11_RANGE_FOR 1
#else
#define RAPIDJSON_HAS_CXX11_RANGE_FOR 0
#endif
#endif // RAPIDJSON_HAS_CXX11_RANGE_FOR
// C++17 features
 
#ifndef RAPIDJSON_HAS_CXX17
#define RAPIDJSON_HAS_CXX17 (RAPIDJSON_CPLUSPLUS >= 201703L)
#endif
 
#if RAPIDJSON_HAS_CXX17
#define RAPIDJSON_DELIBERATE_FALLTHROUGH [[fallthrough]]
#elif defined(__has_cpp_attribute)
#if __has_cpp_attribute(clang::fallthrough)
#define RAPIDJSON_DELIBERATE_FALLTHROUGH [[clang::fallthrough]]
#elif __has_cpp_attribute(fallthrough)
#define RAPIDJSON_DELIBERATE_FALLTHROUGH __attribute__((fallthrough))
#else
#define RAPIDJSON_DELIBERATE_FALLTHROUGH
#endif
#else
#define RAPIDJSON_DELIBERATE_FALLTHROUGH
#endif
// RAPIDJSON_NOEXCEPT_ASSERT
 
#ifndef RAPIDJSON_NOEXCEPT_ASSERT
#ifdef RAPIDJSON_ASSERT_THROWS
#include <cassert>
#define RAPIDJSON_NOEXCEPT_ASSERT(x) assert(x)
#else
#define RAPIDJSON_NOEXCEPT_ASSERT(x) RAPIDJSON_ASSERT(x)
#endif // RAPIDJSON_ASSERT_THROWS
#endif // RAPIDJSON_NOEXCEPT_ASSERT
// malloc/realloc/free
 
#ifndef RAPIDJSON_MALLOC
#define RAPIDJSON_MALLOC(size) std::malloc(size)
#endif
#ifndef RAPIDJSON_REALLOC
#define RAPIDJSON_REALLOC(ptr, new_size) std::realloc(ptr, new_size)
#endif
#ifndef RAPIDJSON_FREE
#define RAPIDJSON_FREE(ptr) std::free(ptr)
#endif
// new/delete
 
#ifndef RAPIDJSON_NEW
#define RAPIDJSON_NEW(TypeName) new TypeName
#endif
#ifndef RAPIDJSON_DELETE
#define RAPIDJSON_DELETE(x) delete x
#endif
// Type
RAPIDJSON_NAMESPACE_BEGIN
enum Type
{
    kNullType   = 0, 
    kFalseType  = 1, 
    kTrueType   = 2, 
    kObjectType = 3, 
    kArrayType  = 4, 
    kStringType = 5, 
    kNumberType = 6  
};
 
RAPIDJSON_NAMESPACE_END
 
#endif // RAPIDJSON_RAPIDJSON_H_