rapidjson updated to recent git version.

This commit is contained in:
XMRig 2019-08-04 19:47:23 +07:00
parent df559b44d8
commit 7eaf7764f7
28 changed files with 2228 additions and 777 deletions

View file

@ -52,6 +52,19 @@ concept Allocator {
\endcode
*/
/*! \def RAPIDJSON_ALLOCATOR_DEFAULT_CHUNK_CAPACITY
\ingroup RAPIDJSON_CONFIG
\brief User-defined kDefaultChunkCapacity definition.
User can define this as any \c size that is a power of 2.
*/
#ifndef RAPIDJSON_ALLOCATOR_DEFAULT_CHUNK_CAPACITY
#define RAPIDJSON_ALLOCATOR_DEFAULT_CHUNK_CAPACITY (64 * 1024)
#endif
///////////////////////////////////////////////////////////////////////////////
// CrtAllocator
@ -236,7 +249,7 @@ private:
*/
bool AddChunk(size_t capacity) {
if (!baseAllocator_)
ownBaseAllocator_ = baseAllocator_ = RAPIDJSON_NEW(BaseAllocator());
ownBaseAllocator_ = baseAllocator_ = RAPIDJSON_NEW(BaseAllocator)();
if (ChunkHeader* chunk = reinterpret_cast<ChunkHeader*>(baseAllocator_->Malloc(RAPIDJSON_ALIGN(sizeof(ChunkHeader)) + capacity))) {
chunk->capacity = capacity;
chunk->size = 0;
@ -248,7 +261,7 @@ private:
return false;
}
static const int kDefaultChunkCapacity = 64 * 1024; //!< Default chunk capacity.
static const int kDefaultChunkCapacity = RAPIDJSON_ALLOCATOR_DEFAULT_CHUNK_CAPACITY; //!< Default chunk capacity.
//! Chunk header for perpending to each chunk.
/*! Chunks are stored as a singly linked list.

View file

@ -0,0 +1,78 @@
// 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_CURSORSTREAMWRAPPER_H_
#define RAPIDJSON_CURSORSTREAMWRAPPER_H_
#include "stream.h"
#if defined(__GNUC__)
RAPIDJSON_DIAG_PUSH
RAPIDJSON_DIAG_OFF(effc++)
#endif
#if defined(_MSC_VER) && _MSC_VER <= 1800
RAPIDJSON_DIAG_PUSH
RAPIDJSON_DIAG_OFF(4702) // unreachable code
RAPIDJSON_DIAG_OFF(4512) // assignment operator could not be generated
#endif
RAPIDJSON_NAMESPACE_BEGIN
//! Cursor stream wrapper for counting line and column number if error exists.
/*!
\tparam InputStream Any stream that implements Stream Concept
*/
template <typename InputStream, typename Encoding = UTF8<> >
class CursorStreamWrapper : public GenericStreamWrapper<InputStream, Encoding> {
public:
typedef typename Encoding::Ch Ch;
CursorStreamWrapper(InputStream& is):
GenericStreamWrapper<InputStream, Encoding>(is), line_(1), col_(0) {}
// counting line and column number
Ch Take() {
Ch ch = this->is_.Take();
if(ch == '\n') {
line_ ++;
col_ = 0;
} else {
col_ ++;
}
return ch;
}
//! Get the error line number, if error exists.
size_t GetLine() const { return line_; }
//! Get the error column number, if error exists.
size_t GetColumn() const { return col_; }
private:
size_t line_; //!< Current Line
size_t col_; //!< Current Column
};
#if defined(_MSC_VER) && _MSC_VER <= 1800
RAPIDJSON_DIAG_POP
#endif
#if defined(__GNUC__)
RAPIDJSON_DIAG_POP
#endif
RAPIDJSON_NAMESPACE_END
#endif // RAPIDJSON_CURSORSTREAMWRAPPER_H_

View file

@ -26,26 +26,21 @@
#include <limits>
RAPIDJSON_DIAG_PUSH
#ifdef _MSC_VER
RAPIDJSON_DIAG_OFF(4127) // conditional expression is constant
RAPIDJSON_DIAG_OFF(4244) // conversion from kXxxFlags to 'uint16_t', possible loss of data
#endif
#ifdef __clang__
RAPIDJSON_DIAG_OFF(padded)
RAPIDJSON_DIAG_OFF(switch-enum)
RAPIDJSON_DIAG_OFF(c++98-compat)
#elif defined(_MSC_VER)
RAPIDJSON_DIAG_OFF(4127) // conditional expression is constant
RAPIDJSON_DIAG_OFF(4244) // conversion from kXxxFlags to 'uint16_t', possible loss of data
#endif
#ifdef __GNUC__
RAPIDJSON_DIAG_OFF(effc++)
#if __GNUC__ >= 6
RAPIDJSON_DIAG_OFF(terminate) // ignore throwing RAPIDJSON_ASSERT in RAPIDJSON_NOEXCEPT functions
#endif
#endif // __GNUC__
#ifndef RAPIDJSON_NOMEMBERITERATORCLASS
#include <iterator> // std::iterator, std::random_access_iterator_tag
#include <iterator> // std::random_access_iterator_tag
#endif
#if RAPIDJSON_HAS_CXX11_RVALUE_REFS
@ -71,6 +66,12 @@ template <typename Encoding, typename Allocator>
struct GenericMember {
GenericValue<Encoding, Allocator> name; //!< name of member (must be a string)
GenericValue<Encoding, Allocator> value; //!< value of member.
// swap() for std::sort() and other potential use in STL.
friend inline void swap(GenericMember& a, GenericMember& b) RAPIDJSON_NOEXCEPT {
a.name.Swap(b.name);
a.value.Swap(b.value);
}
};
///////////////////////////////////////////////////////////////////////////////
@ -98,16 +99,13 @@ struct GenericMember {
\see GenericMember, GenericValue::MemberIterator, GenericValue::ConstMemberIterator
*/
template <bool Const, typename Encoding, typename Allocator>
class GenericMemberIterator
: public std::iterator<std::random_access_iterator_tag
, typename internal::MaybeAddConst<Const,GenericMember<Encoding,Allocator> >::Type> {
class GenericMemberIterator {
friend class GenericValue<Encoding,Allocator>;
template <bool, typename, typename> friend class GenericMemberIterator;
typedef GenericMember<Encoding,Allocator> PlainType;
typedef typename internal::MaybeAddConst<Const,PlainType>::Type ValueType;
typedef std::iterator<std::random_access_iterator_tag,ValueType> BaseType;
public:
//! Iterator type itself
@ -117,12 +115,21 @@ public:
//! Non-constant iterator type
typedef GenericMemberIterator<false,Encoding,Allocator> NonConstIterator;
/** \name std::iterator_traits support */
//@{
typedef ValueType value_type;
typedef ValueType * pointer;
typedef ValueType & reference;
typedef std::ptrdiff_t difference_type;
typedef std::random_access_iterator_tag iterator_category;
//@}
//! Pointer to (const) GenericMember
typedef typename BaseType::pointer Pointer;
typedef pointer Pointer;
//! Reference to (const) GenericMember
typedef typename BaseType::reference Reference;
typedef reference Reference;
//! Signed integer type (e.g. \c ptrdiff_t)
typedef typename BaseType::difference_type DifferenceType;
typedef difference_type DifferenceType;
//! Default constructor (singular value)
/*! Creates an iterator pointing to no element.
@ -198,17 +205,17 @@ private:
// class-based member iterator implementation disabled, use plain pointers
template <bool Const, typename Encoding, typename Allocator>
struct GenericMemberIterator;
class GenericMemberIterator;
//! non-const GenericMemberIterator
template <typename Encoding, typename Allocator>
struct GenericMemberIterator<false,Encoding,Allocator> {
class GenericMemberIterator<false,Encoding,Allocator> {
//! use plain pointer as iterator type
typedef GenericMember<Encoding,Allocator>* Iterator;
};
//! const GenericMemberIterator
template <typename Encoding, typename Allocator>
struct GenericMemberIterator<true,Encoding,Allocator> {
class GenericMemberIterator<true,Encoding,Allocator> {
//! use plain const pointer as iterator type
typedef const GenericMember<Encoding,Allocator>* Iterator;
};
@ -300,7 +307,7 @@ struct GenericStringRef {
*/
#endif
explicit GenericStringRef(const CharType* str)
: s(str), length(internal::StrLen(str)){ RAPIDJSON_ASSERT(s != 0); }
: s(str), length(NotNullStrLen(str)) {}
//! Create constant string reference from pointer and length
#ifndef __clang__ // -Wdocumentation
@ -312,12 +319,10 @@ struct GenericStringRef {
*/
#endif
GenericStringRef(const CharType* str, SizeType len)
: s(str), length(len) { RAPIDJSON_ASSERT(s != 0); }
: s(RAPIDJSON_LIKELY(str) ? str : emptyString), length(len) { RAPIDJSON_ASSERT(str != 0 || len == 0u); }
GenericStringRef(const GenericStringRef& rhs) : s(rhs.s), length(rhs.length) {}
GenericStringRef& operator=(const GenericStringRef& rhs) { s = rhs.s; length = rhs.length; }
//! implicit conversion to plain CharType pointer
operator const Ch *() const { return s; }
@ -325,11 +330,24 @@ struct GenericStringRef {
const SizeType length; //!< length of the string (excluding the trailing NULL terminator)
private:
SizeType NotNullStrLen(const CharType* str) {
RAPIDJSON_ASSERT(str != 0);
return internal::StrLen(str);
}
/// Empty string - used when passing in a NULL pointer
static const Ch emptyString[];
//! Disallow construction from non-const array
template<SizeType N>
GenericStringRef(CharType (&str)[N]) /* = delete */;
//! Copy assignment operator not permitted - immutable type
GenericStringRef& operator=(const GenericStringRef& rhs) /* = delete */;
};
template<typename CharType>
const CharType GenericStringRef<CharType>::emptyString[] = { CharType() };
//! Mark a character pointer as constant string
/*! Mark a plain character pointer as a "string literal". This function
can be used to avoid copying a character string to be referenced as a
@ -344,7 +362,7 @@ private:
*/
template<typename CharType>
inline GenericStringRef<CharType> StringRef(const CharType* str) {
return GenericStringRef<CharType>(str, internal::StrLen(str));
return GenericStringRef<CharType>(str);
}
//! Mark a character pointer as constant string
@ -434,6 +452,26 @@ struct TypeHelper<ValueType, unsigned> {
static ValueType& Set(ValueType& v, unsigned data, typename ValueType::AllocatorType&) { return v.SetUint(data); }
};
#ifdef _MSC_VER
RAPIDJSON_STATIC_ASSERT(sizeof(long) == sizeof(int));
template<typename ValueType>
struct TypeHelper<ValueType, long> {
static bool Is(const ValueType& v) { return v.IsInt(); }
static long Get(const ValueType& v) { return v.GetInt(); }
static ValueType& Set(ValueType& v, long data) { return v.SetInt(data); }
static ValueType& Set(ValueType& v, long data, typename ValueType::AllocatorType&) { return v.SetInt(data); }
};
RAPIDJSON_STATIC_ASSERT(sizeof(unsigned long) == sizeof(unsigned));
template<typename ValueType>
struct TypeHelper<ValueType, unsigned long> {
static bool Is(const ValueType& v) { return v.IsUint(); }
static unsigned long Get(const ValueType& v) { return v.GetUint(); }
static ValueType& Set(ValueType& v, unsigned long data) { return v.SetUint(data); }
static ValueType& Set(ValueType& v, unsigned long data, typename ValueType::AllocatorType&) { return v.SetUint(data); }
};
#endif
template<typename ValueType>
struct TypeHelper<ValueType, int64_t> {
static bool Is(const ValueType& v) { return v.IsInt64(); }
@ -507,7 +545,7 @@ struct TypeHelper<ValueType, typename ValueType::Object> {
static bool Is(const ValueType& v) { return v.IsObject(); }
static ObjectType Get(ValueType& v) { return v.GetObject(); }
static ValueType& Set(ValueType& v, ObjectType data) { return v = data; }
static ValueType& Set(ValueType& v, ObjectType data, typename ValueType::AllocatorType&) { v = data; }
static ValueType& Set(ValueType& v, ObjectType data, typename ValueType::AllocatorType&) { return v = data; }
};
template<typename ValueType>
@ -590,11 +628,11 @@ public:
\note Default content for number is zero.
*/
explicit GenericValue(Type type) RAPIDJSON_NOEXCEPT : data_() {
static const uint16_t defaultFlags[7] = {
static const uint16_t defaultFlags[] = {
kNullFlag, kFalseFlag, kTrueFlag, kObjectFlag, kArrayFlag, kShortStringFlag,
kNumberAnyFlag
};
RAPIDJSON_ASSERT(type <= kNumberType);
RAPIDJSON_NOEXCEPT_ASSERT(type >= kNullType && type <= kNumberType);
data_.f.flags = defaultFlags[type];
// Use ShortString to store empty string.
@ -607,10 +645,50 @@ public:
\tparam SourceAllocator allocator of \c rhs
\param rhs Value to copy from (read-only)
\param allocator Allocator for allocating copied elements and buffers. Commonly use GenericDocument::GetAllocator().
\param copyConstStrings Force copying of constant strings (e.g. referencing an in-situ buffer)
\see CopyFrom()
*/
template< typename SourceAllocator >
GenericValue(const GenericValue<Encoding, SourceAllocator>& rhs, Allocator & allocator);
template <typename SourceAllocator>
GenericValue(const GenericValue<Encoding,SourceAllocator>& rhs, Allocator& allocator, bool copyConstStrings = false) {
switch (rhs.GetType()) {
case kObjectType: {
SizeType count = rhs.data_.o.size;
Member* lm = reinterpret_cast<Member*>(allocator.Malloc(count * sizeof(Member)));
const typename GenericValue<Encoding,SourceAllocator>::Member* rm = rhs.GetMembersPointer();
for (SizeType i = 0; i < count; i++) {
new (&lm[i].name) GenericValue(rm[i].name, allocator, copyConstStrings);
new (&lm[i].value) GenericValue(rm[i].value, allocator, copyConstStrings);
}
data_.f.flags = kObjectFlag;
data_.o.size = data_.o.capacity = count;
SetMembersPointer(lm);
}
break;
case kArrayType: {
SizeType count = rhs.data_.a.size;
GenericValue* le = reinterpret_cast<GenericValue*>(allocator.Malloc(count * sizeof(GenericValue)));
const GenericValue<Encoding,SourceAllocator>* re = rhs.GetElementsPointer();
for (SizeType i = 0; i < count; i++)
new (&le[i]) GenericValue(re[i], allocator, copyConstStrings);
data_.f.flags = kArrayFlag;
data_.a.size = data_.a.capacity = count;
SetElementsPointer(le);
}
break;
case kStringType:
if (rhs.data_.f.flags == kConstStringFlag && !copyConstStrings) {
data_.f.flags = rhs.data_.f.flags;
data_ = *reinterpret_cast<const Data*>(&rhs.data_);
}
else
SetStringRaw(StringRef(rhs.GetString(), rhs.GetStringLength()), allocator);
break;
default:
data_.f.flags = rhs.data_.f.flags;
data_ = *reinterpret_cast<const Data*>(&rhs.data_);
break;
}
}
//! Constructor for boolean value.
/*! \param b Boolean value
@ -672,6 +750,9 @@ public:
//! Constructor for double value.
explicit GenericValue(double d) RAPIDJSON_NOEXCEPT : data_() { data_.n.d = d; data_.f.flags = kNumberDoubleFlag; }
//! Constructor for float value.
explicit GenericValue(float f) RAPIDJSON_NOEXCEPT : data_() { data_.n.d = static_cast<double>(f); data_.f.flags = kNumberDoubleFlag; }
//! Constructor for constant string (i.e. do not make a copy of string)
GenericValue(const Ch* s, SizeType length) RAPIDJSON_NOEXCEPT : data_() { SetStringRaw(StringRef(s, length)); }
@ -753,9 +834,10 @@ public:
/*! \param rhs Source of the assignment. It will become a null value after assignment.
*/
GenericValue& operator=(GenericValue& rhs) RAPIDJSON_NOEXCEPT {
RAPIDJSON_ASSERT(this != &rhs);
this->~GenericValue();
RawAssign(rhs);
if (RAPIDJSON_LIKELY(this != &rhs)) {
this->~GenericValue();
RawAssign(rhs);
}
return *this;
}
@ -800,12 +882,13 @@ public:
\tparam SourceAllocator Allocator type of \c rhs
\param rhs Value to copy from (read-only)
\param allocator Allocator to use for copying
\param copyConstStrings Force copying of constant strings (e.g. referencing an in-situ buffer)
*/
template <typename SourceAllocator>
GenericValue& CopyFrom(const GenericValue<Encoding, SourceAllocator>& rhs, Allocator& allocator) {
GenericValue& CopyFrom(const GenericValue<Encoding, SourceAllocator>& rhs, Allocator& allocator, bool copyConstStrings = false) {
RAPIDJSON_ASSERT(static_cast<void*>(this) != static_cast<void const*>(&rhs));
this->~GenericValue();
new (this) GenericValue(rhs, allocator);
new (this) GenericValue(rhs, allocator, copyConstStrings);
return *this;
}
@ -846,7 +929,7 @@ public:
//! Equal-to operator
/*!
\note If an object contains duplicated named member, comparing equality with any object is always \c false.
\note Linear time complexity (number of all values in the subtree and total lengths of all strings).
\note Complexity is quadratic in Object's member number and linear for the rest (number of all values in the subtree and total lengths of all strings).
*/
template <typename SourceAllocator>
bool operator==(const GenericValue<Encoding, SourceAllocator>& rhs) const {
@ -955,14 +1038,14 @@ public:
uint64_t u = GetUint64();
volatile double d = static_cast<double>(u);
return (d >= 0.0)
&& (d < static_cast<double>(std::numeric_limits<uint64_t>::max()))
&& (d < static_cast<double>((std::numeric_limits<uint64_t>::max)()))
&& (u == static_cast<uint64_t>(d));
}
if (IsInt64()) {
int64_t i = GetInt64();
volatile double d = static_cast<double>(i);
return (d >= static_cast<double>(std::numeric_limits<int64_t>::min()))
&& (d < static_cast<double>(std::numeric_limits<int64_t>::max()))
return (d >= static_cast<double>((std::numeric_limits<int64_t>::min)()))
&& (d < static_cast<double>((std::numeric_limits<int64_t>::max)()))
&& (i == static_cast<int64_t>(d));
}
return true; // double, int, uint are always lossless
@ -979,8 +1062,8 @@ public:
bool IsLosslessFloat() const {
if (!IsNumber()) return false;
double a = GetDouble();
if (a < static_cast<double>(-std::numeric_limits<float>::max())
|| a > static_cast<double>(std::numeric_limits<float>::max()))
if (a < static_cast<double>(-(std::numeric_limits<float>::max)())
|| a > static_cast<double>((std::numeric_limits<float>::max)()))
return false;
double b = static_cast<double>(static_cast<float>(a));
return a >= b && a <= b; // Prevent -Wfloat-equal
@ -1015,6 +1098,9 @@ public:
//! Get the number of members in the object.
SizeType MemberCount() const { RAPIDJSON_ASSERT(IsObject()); return data_.o.size; }
//! Get the capacity of object.
SizeType MemberCapacity() const { RAPIDJSON_ASSERT(IsObject()); return data_.o.capacity; }
//! Check whether the object is empty.
bool ObjectEmpty() const { RAPIDJSON_ASSERT(IsObject()); return data_.o.size == 0; }
@ -1083,6 +1169,21 @@ public:
/*! \pre IsObject() == true */
MemberIterator MemberEnd() { RAPIDJSON_ASSERT(IsObject()); return MemberIterator(GetMembersPointer() + data_.o.size); }
//! Request the object to have enough capacity to store members.
/*! \param newCapacity The capacity that the object at least need to have.
\param allocator Allocator for reallocating memory. It must be the same one as used before. Commonly use GenericDocument::GetAllocator().
\return The value itself for fluent API.
\note Linear time complexity.
*/
GenericValue& MemberReserve(SizeType newCapacity, Allocator &allocator) {
RAPIDJSON_ASSERT(IsObject());
if (newCapacity > data_.o.capacity) {
SetMembersPointer(reinterpret_cast<Member*>(allocator.Realloc(GetMembersPointer(), data_.o.capacity * sizeof(Member), newCapacity * sizeof(Member))));
data_.o.capacity = newCapacity;
}
return *this;
}
//! Check whether a member exists in the object.
/*!
\param name Member name to be searched.
@ -1188,17 +1289,8 @@ public:
RAPIDJSON_ASSERT(name.IsString());
ObjectData& o = data_.o;
if (o.size >= o.capacity) {
if (o.capacity == 0) {
o.capacity = kDefaultObjectCapacity;
SetMembersPointer(reinterpret_cast<Member*>(allocator.Malloc(o.capacity * sizeof(Member))));
}
else {
SizeType oldCapacity = o.capacity;
o.capacity += (oldCapacity + 1) / 2; // grow by factor 1.5
SetMembersPointer(reinterpret_cast<Member*>(allocator.Realloc(GetMembersPointer(), oldCapacity * sizeof(Member), o.capacity * sizeof(Member))));
}
}
if (o.size >= o.capacity)
MemberReserve(o.capacity == 0 ? kDefaultObjectCapacity : (o.capacity + (o.capacity + 1) / 2), allocator);
Member* members = GetMembersPointer();
members[o.size].name.RawAssign(name);
members[o.size].value.RawAssign(value);
@ -1425,7 +1517,7 @@ public:
MemberIterator pos = MemberBegin() + (first - MemberBegin());
for (MemberIterator itr = pos; itr != last; ++itr)
itr->~Member();
std::memmove(&*pos, &*last, static_cast<size_t>(MemberEnd() - last) * sizeof(Member));
std::memmove(static_cast<void*>(&*pos), &*last, static_cast<size_t>(MemberEnd() - last) * sizeof(Member));
data_.o.size -= static_cast<SizeType>(last - first);
return pos;
}
@ -1628,8 +1720,8 @@ public:
RAPIDJSON_ASSERT(last <= End());
ValueIterator pos = Begin() + (first - Begin());
for (ValueIterator itr = pos; itr != last; ++itr)
itr->~GenericValue();
std::memmove(pos, last, static_cast<size_t>(End() - last) * sizeof(GenericValue));
itr->~GenericValue();
std::memmove(static_cast<void*>(pos), last, static_cast<size_t>(End() - last) * sizeof(GenericValue));
data_.a.size -= static_cast<SizeType>(last - first);
return pos;
}
@ -1671,7 +1763,7 @@ public:
GenericValue& SetInt64(int64_t i64) { this->~GenericValue(); new (this) GenericValue(i64); return *this; }
GenericValue& SetUint64(uint64_t u64) { this->~GenericValue(); new (this) GenericValue(u64); return *this; }
GenericValue& SetDouble(double d) { this->~GenericValue(); new (this) GenericValue(d); return *this; }
GenericValue& SetFloat(float f) { this->~GenericValue(); new (this) GenericValue(f); return *this; }
GenericValue& SetFloat(float f) { this->~GenericValue(); new (this) GenericValue(static_cast<double>(f)); return *this; }
//@}
@ -1710,7 +1802,7 @@ public:
\return The value itself for fluent API.
\post IsString() == true && GetString() != s && strcmp(GetString(),s) == 0 && GetStringLength() == length
*/
GenericValue& SetString(const Ch* s, SizeType length, Allocator& allocator) { this->~GenericValue(); SetStringRaw(StringRef(s, length), allocator); return *this; }
GenericValue& SetString(const Ch* s, SizeType length, Allocator& allocator) { return SetString(StringRef(s, length), allocator); }
//! Set this value as a string by copying from source string.
/*! \param s source string.
@ -1718,7 +1810,15 @@ public:
\return The value itself for fluent API.
\post IsString() == true && GetString() != s && strcmp(GetString(),s) == 0 && GetStringLength() == length
*/
GenericValue& SetString(const Ch* s, Allocator& allocator) { return SetString(s, internal::StrLen(s), allocator); }
GenericValue& SetString(const Ch* s, Allocator& allocator) { return SetString(StringRef(s), allocator); }
//! Set this value as a string by copying from source string.
/*! \param s source string reference
\param allocator Allocator for allocating copied buffer. Commonly use GenericDocument::GetAllocator().
\return The value itself for fluent API.
\post IsString() == true && GetString() != s.s && strcmp(GetString(),s) == 0 && GetStringLength() == length
*/
GenericValue& SetString(StringRefType s, Allocator& allocator) { this->~GenericValue(); SetStringRaw(s, allocator); return *this; }
#if RAPIDJSON_HAS_STDSTRING
//! Set this value as a string by copying from source string.
@ -1728,7 +1828,7 @@ public:
\post IsString() == true && GetString() != s.data() && strcmp(GetString(),s.data() == 0 && GetStringLength() == s.size()
\note Requires the definition of the preprocessor symbol \ref RAPIDJSON_HAS_STDSTRING.
*/
GenericValue& SetString(const std::basic_string<Ch>& s, Allocator& allocator) { return SetString(s.data(), SizeType(s.size()), allocator); }
GenericValue& SetString(const std::basic_string<Ch>& s, Allocator& allocator) { return SetString(StringRef(s), allocator); }
#endif
//@}
@ -1936,7 +2036,7 @@ private:
if (count) {
GenericValue* e = static_cast<GenericValue*>(allocator.Malloc(count * sizeof(GenericValue)));
SetElementsPointer(e);
std::memcpy(e, values, count * sizeof(GenericValue));
std::memcpy(static_cast<void*>(e), values, count * sizeof(GenericValue));
}
else
SetElementsPointer(0);
@ -1949,7 +2049,7 @@ private:
if (count) {
Member* m = static_cast<Member*>(allocator.Malloc(count * sizeof(Member)));
SetMembersPointer(m);
std::memcpy(m, members, count * sizeof(Member));
std::memcpy(static_cast<void*>(m), members, count * sizeof(Member));
}
else
SetMembersPointer(0);
@ -2038,7 +2138,7 @@ public:
GenericValue<Encoding, Allocator>(type), allocator_(allocator), ownAllocator_(0), stack_(stackAllocator, stackCapacity), parseResult_()
{
if (!allocator_)
ownAllocator_ = allocator_ = RAPIDJSON_NEW(Allocator());
ownAllocator_ = allocator_ = RAPIDJSON_NEW(Allocator)();
}
//! Constructor
@ -2051,7 +2151,7 @@ public:
allocator_(allocator), ownAllocator_(0), stack_(stackAllocator, stackCapacity), parseResult_()
{
if (!allocator_)
ownAllocator_ = allocator_ = RAPIDJSON_NEW(Allocator());
ownAllocator_ = allocator_ = RAPIDJSON_NEW(Allocator)();
}
#if RAPIDJSON_HAS_CXX11_RVALUE_REFS
@ -2112,6 +2212,10 @@ public:
return *this;
}
// Allow Swap with ValueType.
// Refer to Effective C++ 3rd Edition/Item 33: Avoid hiding inherited names.
using ValueType::Swap;
//! free-standing swap function helper
/*!
Helper function to enable support for common swap implementation pattern based on \c std::swap:
@ -2243,7 +2347,7 @@ public:
template <unsigned parseFlags, typename SourceEncoding>
GenericDocument& Parse(const typename SourceEncoding::Ch* str, size_t length) {
RAPIDJSON_ASSERT(!(parseFlags & kParseInsituFlag));
MemoryStream ms(static_cast<const char*>(str), length * sizeof(typename SourceEncoding::Ch));
MemoryStream ms(reinterpret_cast<const char*>(str), length * sizeof(typename SourceEncoding::Ch));
EncodedInputStream<SourceEncoding, MemoryStream> is(ms);
ParseStream<parseFlags, SourceEncoding>(is);
return *this;
@ -2280,7 +2384,7 @@ public:
//!@name Handling parse errors
//!@{
//! Whether a parse error has occured in the last parsing.
//! Whether a parse error has occurred in the last parsing.
bool HasParseError() const { return parseResult_.IsError(); }
//! Get the \ref ParseErrorCode of last parsing.
@ -2401,35 +2505,6 @@ private:
//! GenericDocument with UTF8 encoding
typedef GenericDocument<UTF8<> > Document;
// defined here due to the dependency on GenericDocument
template <typename Encoding, typename Allocator>
template <typename SourceAllocator>
inline
GenericValue<Encoding,Allocator>::GenericValue(const GenericValue<Encoding,SourceAllocator>& rhs, Allocator& allocator)
{
switch (rhs.GetType()) {
case kObjectType:
case kArrayType: { // perform deep copy via SAX Handler
GenericDocument<Encoding,Allocator> d(&allocator);
rhs.Accept(d);
RawAssign(*d.stack_.template Pop<GenericValue>(1));
}
break;
case kStringType:
if (rhs.data_.f.flags == kConstStringFlag) {
data_.f.flags = rhs.data_.f.flags;
data_ = *reinterpret_cast<const Data*>(&rhs.data_);
} else {
SetStringRaw(StringRef(rhs.GetString(), rhs.GetStringLength()), allocator);
}
break;
default:
data_.f.flags = rhs.data_.f.flags;
data_ = *reinterpret_cast<const Data*>(&rhs.data_);
break;
}
}
//! Helper class for accessing Value of array type.
/*!
Instance of this helper class is obtained by \c GenericValue::GetArray().
@ -2510,6 +2585,7 @@ public:
~GenericObject() {}
SizeType MemberCount() const { return value_.MemberCount(); }
SizeType MemberCapacity() const { return value_.MemberCapacity(); }
bool ObjectEmpty() const { return value_.ObjectEmpty(); }
template <typename T> ValueType& operator[](T* name) const { return value_[name]; }
template <typename SourceAllocator> ValueType& operator[](const GenericValue<EncodingType, SourceAllocator>& name) const { return value_[name]; }
@ -2518,6 +2594,7 @@ public:
#endif
MemberIterator MemberBegin() const { return value_.MemberBegin(); }
MemberIterator MemberEnd() const { return value_.MemberEnd(); }
GenericObject MemberReserve(SizeType newCapacity, AllocatorType &allocator) const { value_.MemberReserve(newCapacity, allocator); return *this; }
bool HasMember(const Ch* name) const { return value_.HasMember(name); }
#if RAPIDJSON_HAS_STDSTRING
bool HasMember(const std::basic_string<Ch>& name) const { return value_.HasMember(name); }
@ -2543,7 +2620,7 @@ public:
GenericObject AddMember(StringRefType name, ValueType& value, AllocatorType& allocator) const { value_.AddMember(name, value, allocator); return *this; }
GenericObject AddMember(StringRefType name, StringRefType value, AllocatorType& allocator) const { value_.AddMember(name, value, allocator); return *this; }
template <typename T> RAPIDJSON_DISABLEIF_RETURN((internal::OrExpr<internal::IsPointer<T>, internal::IsGenericValue<T> >), (GenericObject)) AddMember(StringRefType name, T value, AllocatorType& allocator) const { value_.AddMember(name, value, allocator); return *this; }
void RemoveAllMembers() { return value_.RemoveAllMembers(); }
void RemoveAllMembers() { value_.RemoveAllMembers(); }
bool RemoveMember(const Ch* name) const { return value_.RemoveMember(name); }
#if RAPIDJSON_HAS_STDSTRING
bool RemoveMember(const std::basic_string<Ch>& name) const { return value_.RemoveMember(name); }

View file

@ -200,7 +200,7 @@ private:
// xx xx xx xx UTF-8
if (!hasBOM_) {
unsigned pattern = (c[0] ? 1 : 0) | (c[1] ? 2 : 0) | (c[2] ? 4 : 0) | (c[3] ? 8 : 0);
int pattern = (c[0] ? 1 : 0) | (c[1] ? 2 : 0) | (c[2] ? 4 : 0) | (c[3] ? 8 : 0);
switch (pattern) {
case 0x08: type_ = kUTF32BE; break;
case 0x0A: type_ = kUTF16BE; break;

View file

@ -17,7 +17,7 @@
#include "rapidjson.h"
#ifdef _MSC_VER
#if defined(_MSC_VER) && !defined(__clang__)
RAPIDJSON_DIAG_PUSH
RAPIDJSON_DIAG_OFF(4244) // conversion from 'type1' to 'type2', possible loss of data
RAPIDJSON_DIAG_OFF(4702) // unreachable code
@ -144,9 +144,9 @@ struct UTF8 {
template <typename InputStream>
static bool Decode(InputStream& is, unsigned* codepoint) {
#define COPY() c = is.Take(); *codepoint = (*codepoint << 6) | (static_cast<unsigned char>(c) & 0x3Fu)
#define TRANS(mask) result &= ((GetRange(static_cast<unsigned char>(c)) & mask) != 0)
#define TAIL() COPY(); TRANS(0x70)
#define RAPIDJSON_COPY() c = is.Take(); *codepoint = (*codepoint << 6) | (static_cast<unsigned char>(c) & 0x3Fu)
#define RAPIDJSON_TRANS(mask) result &= ((GetRange(static_cast<unsigned char>(c)) & mask) != 0)
#define RAPIDJSON_TAIL() RAPIDJSON_COPY(); RAPIDJSON_TRANS(0x70)
typename InputStream::Ch c = is.Take();
if (!(c & 0x80)) {
*codepoint = static_cast<unsigned char>(c);
@ -157,48 +157,48 @@ struct UTF8 {
if (type >= 32) {
*codepoint = 0;
} else {
*codepoint = (0xFF >> type) & static_cast<unsigned char>(c);
*codepoint = (0xFFu >> type) & static_cast<unsigned char>(c);
}
bool result = true;
switch (type) {
case 2: TAIL(); return result;
case 3: TAIL(); TAIL(); return result;
case 4: COPY(); TRANS(0x50); TAIL(); return result;
case 5: COPY(); TRANS(0x10); TAIL(); TAIL(); return result;
case 6: TAIL(); TAIL(); TAIL(); return result;
case 10: COPY(); TRANS(0x20); TAIL(); return result;
case 11: COPY(); TRANS(0x60); TAIL(); TAIL(); return result;
case 2: RAPIDJSON_TAIL(); return result;
case 3: RAPIDJSON_TAIL(); RAPIDJSON_TAIL(); return result;
case 4: RAPIDJSON_COPY(); RAPIDJSON_TRANS(0x50); RAPIDJSON_TAIL(); return result;
case 5: RAPIDJSON_COPY(); RAPIDJSON_TRANS(0x10); RAPIDJSON_TAIL(); RAPIDJSON_TAIL(); return result;
case 6: RAPIDJSON_TAIL(); RAPIDJSON_TAIL(); RAPIDJSON_TAIL(); return result;
case 10: RAPIDJSON_COPY(); RAPIDJSON_TRANS(0x20); RAPIDJSON_TAIL(); return result;
case 11: RAPIDJSON_COPY(); RAPIDJSON_TRANS(0x60); RAPIDJSON_TAIL(); RAPIDJSON_TAIL(); return result;
default: return false;
}
#undef COPY
#undef TRANS
#undef TAIL
#undef RAPIDJSON_COPY
#undef RAPIDJSON_TRANS
#undef RAPIDJSON_TAIL
}
template <typename InputStream, typename OutputStream>
static bool Validate(InputStream& is, OutputStream& os) {
#define COPY() os.Put(c = is.Take())
#define TRANS(mask) result &= ((GetRange(static_cast<unsigned char>(c)) & mask) != 0)
#define TAIL() COPY(); TRANS(0x70)
#define RAPIDJSON_COPY() os.Put(c = is.Take())
#define RAPIDJSON_TRANS(mask) result &= ((GetRange(static_cast<unsigned char>(c)) & mask) != 0)
#define RAPIDJSON_TAIL() RAPIDJSON_COPY(); RAPIDJSON_TRANS(0x70)
Ch c;
COPY();
RAPIDJSON_COPY();
if (!(c & 0x80))
return true;
bool result = true;
switch (GetRange(static_cast<unsigned char>(c))) {
case 2: TAIL(); return result;
case 3: TAIL(); TAIL(); return result;
case 4: COPY(); TRANS(0x50); TAIL(); return result;
case 5: COPY(); TRANS(0x10); TAIL(); TAIL(); return result;
case 6: TAIL(); TAIL(); TAIL(); return result;
case 10: COPY(); TRANS(0x20); TAIL(); return result;
case 11: COPY(); TRANS(0x60); TAIL(); TAIL(); return result;
case 2: RAPIDJSON_TAIL(); return result;
case 3: RAPIDJSON_TAIL(); RAPIDJSON_TAIL(); return result;
case 4: RAPIDJSON_COPY(); RAPIDJSON_TRANS(0x50); RAPIDJSON_TAIL(); return result;
case 5: RAPIDJSON_COPY(); RAPIDJSON_TRANS(0x10); RAPIDJSON_TAIL(); RAPIDJSON_TAIL(); return result;
case 6: RAPIDJSON_TAIL(); RAPIDJSON_TAIL(); RAPIDJSON_TAIL(); return result;
case 10: RAPIDJSON_COPY(); RAPIDJSON_TRANS(0x20); RAPIDJSON_TAIL(); return result;
case 11: RAPIDJSON_COPY(); RAPIDJSON_TRANS(0x60); RAPIDJSON_TAIL(); RAPIDJSON_TAIL(); return result;
default: return false;
}
#undef COPY
#undef TRANS
#undef TAIL
#undef RAPIDJSON_COPY
#undef RAPIDJSON_TRANS
#undef RAPIDJSON_TAIL
}
static unsigned char GetRange(unsigned char c) {
@ -283,7 +283,7 @@ struct UTF16 {
RAPIDJSON_ASSERT(codepoint <= 0x10FFFF);
unsigned v = codepoint - 0x10000;
os.Put(static_cast<typename OutputStream::Ch>((v >> 10) | 0xD800));
os.Put((v & 0x3FF) | 0xDC00);
os.Put(static_cast<typename OutputStream::Ch>((v & 0x3FF) | 0xDC00));
}
}
@ -299,7 +299,7 @@ struct UTF16 {
RAPIDJSON_ASSERT(codepoint <= 0x10FFFF);
unsigned v = codepoint - 0x10000;
PutUnsafe(os, static_cast<typename OutputStream::Ch>((v >> 10) | 0xD800));
PutUnsafe(os, (v & 0x3FF) | 0xDC00);
PutUnsafe(os, static_cast<typename OutputStream::Ch>((v & 0x3FF) | 0xDC00));
}
}
@ -384,7 +384,7 @@ struct UTF16BE : UTF16<CharType> {
static CharType Take(InputByteStream& is) {
RAPIDJSON_STATIC_ASSERT(sizeof(typename InputByteStream::Ch) == 1);
unsigned c = static_cast<unsigned>(static_cast<uint8_t>(is.Take())) << 8;
c |= static_cast<uint8_t>(is.Take());
c |= static_cast<unsigned>(static_cast<uint8_t>(is.Take()));
return static_cast<CharType>(c);
}
@ -620,28 +620,28 @@ struct AutoUTF {
#define RAPIDJSON_ENCODINGS_FUNC(x) UTF8<Ch>::x, UTF16LE<Ch>::x, UTF16BE<Ch>::x, UTF32LE<Ch>::x, UTF32BE<Ch>::x
template<typename OutputStream>
RAPIDJSON_FORCEINLINE static void Encode(OutputStream& os, unsigned codepoint) {
static RAPIDJSON_FORCEINLINE void Encode(OutputStream& os, unsigned codepoint) {
typedef void (*EncodeFunc)(OutputStream&, unsigned);
static const EncodeFunc f[] = { RAPIDJSON_ENCODINGS_FUNC(Encode) };
(*f[os.GetType()])(os, codepoint);
}
template<typename OutputStream>
RAPIDJSON_FORCEINLINE static void EncodeUnsafe(OutputStream& os, unsigned codepoint) {
static RAPIDJSON_FORCEINLINE void EncodeUnsafe(OutputStream& os, unsigned codepoint) {
typedef void (*EncodeFunc)(OutputStream&, unsigned);
static const EncodeFunc f[] = { RAPIDJSON_ENCODINGS_FUNC(EncodeUnsafe) };
(*f[os.GetType()])(os, codepoint);
}
template <typename InputStream>
RAPIDJSON_FORCEINLINE static bool Decode(InputStream& is, unsigned* codepoint) {
static RAPIDJSON_FORCEINLINE bool Decode(InputStream& is, unsigned* codepoint) {
typedef bool (*DecodeFunc)(InputStream&, unsigned*);
static const DecodeFunc f[] = { RAPIDJSON_ENCODINGS_FUNC(Decode) };
return (*f[is.GetType()])(is, codepoint);
}
template <typename InputStream, typename OutputStream>
RAPIDJSON_FORCEINLINE static bool Validate(InputStream& is, OutputStream& os) {
static RAPIDJSON_FORCEINLINE bool Validate(InputStream& is, OutputStream& os) {
typedef bool (*ValidateFunc)(InputStream&, OutputStream&);
static const ValidateFunc f[] = { RAPIDJSON_ENCODINGS_FUNC(Validate) };
return (*f[is.GetType()])(is, os);
@ -658,7 +658,7 @@ template<typename SourceEncoding, typename TargetEncoding>
struct Transcoder {
//! Take one Unicode codepoint from source encoding, convert it to target encoding and put it to the output stream.
template<typename InputStream, typename OutputStream>
RAPIDJSON_FORCEINLINE static bool Transcode(InputStream& is, OutputStream& os) {
static RAPIDJSON_FORCEINLINE bool Transcode(InputStream& is, OutputStream& os) {
unsigned codepoint;
if (!SourceEncoding::Decode(is, &codepoint))
return false;
@ -667,7 +667,7 @@ struct Transcoder {
}
template<typename InputStream, typename OutputStream>
RAPIDJSON_FORCEINLINE static bool TranscodeUnsafe(InputStream& is, OutputStream& os) {
static RAPIDJSON_FORCEINLINE bool TranscodeUnsafe(InputStream& is, OutputStream& os) {
unsigned codepoint;
if (!SourceEncoding::Decode(is, &codepoint))
return false;
@ -677,7 +677,7 @@ struct Transcoder {
//! Validate one Unicode codepoint from an encoded stream.
template<typename InputStream, typename OutputStream>
RAPIDJSON_FORCEINLINE static bool Validate(InputStream& is, OutputStream& os) {
static RAPIDJSON_FORCEINLINE bool Validate(InputStream& is, OutputStream& os) {
return Transcode(is, os); // Since source/target encoding is different, must transcode.
}
};
@ -690,26 +690,26 @@ inline void PutUnsafe(Stream& stream, typename Stream::Ch c);
template<typename Encoding>
struct Transcoder<Encoding, Encoding> {
template<typename InputStream, typename OutputStream>
RAPIDJSON_FORCEINLINE static bool Transcode(InputStream& is, OutputStream& os) {
static RAPIDJSON_FORCEINLINE bool Transcode(InputStream& is, OutputStream& os) {
os.Put(is.Take()); // Just copy one code unit. This semantic is different from primary template class.
return true;
}
template<typename InputStream, typename OutputStream>
RAPIDJSON_FORCEINLINE static bool TranscodeUnsafe(InputStream& is, OutputStream& os) {
static RAPIDJSON_FORCEINLINE bool TranscodeUnsafe(InputStream& is, OutputStream& os) {
PutUnsafe(os, is.Take()); // Just copy one code unit. This semantic is different from primary template class.
return true;
}
template<typename InputStream, typename OutputStream>
RAPIDJSON_FORCEINLINE static bool Validate(InputStream& is, OutputStream& os) {
static RAPIDJSON_FORCEINLINE bool Validate(InputStream& is, OutputStream& os) {
return Encoding::Validate(is, os); // source/target encoding are the same
}
};
RAPIDJSON_NAMESPACE_END
#if defined(__GNUC__) || defined(_MSC_VER)
#if defined(__GNUC__) || (defined(_MSC_VER) && !defined(__clang__))
RAPIDJSON_DIAG_POP
#endif

View file

@ -104,6 +104,8 @@ enum ParseErrorCode {
\see GenericReader::Parse, GenericDocument::Parse
*/
struct ParseResult {
//!! Unspecified boolean type
typedef bool (ParseResult::*BooleanType)() const;
public:
//! Default constructor, no error.
ParseResult() : code_(kParseErrorNone), offset_(0) {}
@ -115,8 +117,8 @@ public:
//! Get the error offset, if \ref IsError(), 0 otherwise.
size_t Offset() const { return offset_; }
//! Conversion to \c bool, returns \c true, iff !\ref IsError().
operator bool() const { return !IsError(); }
//! Explicit conversion to \c bool, returns \c true, iff !\ref IsError().
operator BooleanType() const { return !IsError() ? &ParseResult::IsError : NULL; }
//! Whether the result is an error.
bool IsError() const { return code_ != kParseErrorNone; }
@ -124,6 +126,10 @@ public:
bool operator==(ParseErrorCode code) const { return code_ == code; }
friend bool operator==(ParseErrorCode code, const ParseResult & err) { return code == err.code_; }
bool operator!=(const ParseResult& that) const { return !(*this == that); }
bool operator!=(ParseErrorCode code) const { return !(*this == code); }
friend bool operator!=(ParseErrorCode code, const ParseResult & err) { return err != code; }
//! Reset error code.
void Clear() { Set(kParseErrorNone); }
//! Update error code and offset.

View file

@ -59,7 +59,7 @@ public:
// For encoding detection only.
const Ch* Peek4() const {
return (current_ + 4 <= bufferLast_) ? current_ : 0;
return (current_ + 4 - !eof_ <= bufferLast_) ? current_ : 0;
}
private:
@ -68,7 +68,7 @@ private:
++current_;
else if (!eof_) {
count_ += readCount_;
readCount_ = fread(buffer_, 1, bufferSize_, fp_);
readCount_ = std::fread(buffer_, 1, bufferSize_, fp_);
bufferLast_ = buffer_ + readCount_ - 1;
current_ = buffer_;

View file

@ -25,7 +25,7 @@ RAPIDJSON_DIAG_OFF(unreachable-code)
RAPIDJSON_NAMESPACE_BEGIN
//! Wrapper of C file stream for input using fread().
//! Wrapper of C file stream for output using fwrite().
/*!
\note implements Stream concept
*/
@ -62,7 +62,7 @@ public:
void Flush() {
if (current_ != buffer_) {
size_t result = fwrite(buffer_, 1, static_cast<size_t>(current_ - buffer_), fp_);
size_t result = std::fwrite(buffer_, 1, static_cast<size_t>(current_ - buffer_), fp_);
if (result < static_cast<size_t>(current_ - buffer_)) {
// failure deliberately ignored at this time
// added to avoid warn_unused_result build errors

View file

@ -17,7 +17,7 @@
#include "../rapidjson.h"
#if defined(_MSC_VER) && defined(_M_AMD64)
#if defined(_MSC_VER) && !__INTEL_COMPILER && defined(_M_AMD64)
#include <intrin.h> // for _umul128
#pragma intrinsic(_umul128)
#endif
@ -133,7 +133,7 @@ public:
RAPIDJSON_ASSERT(count_ + offset <= kCapacity);
if (interShift == 0) {
std::memmove(&digits_[count_ - 1 + offset], &digits_[count_ - 1], count_ * sizeof(Type));
std::memmove(digits_ + offset, digits_, count_ * sizeof(Type));
count_ += offset;
}
else {

View file

@ -1,5 +1,5 @@
// 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
@ -7,9 +7,9 @@
//
// 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
// 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.
// This is a C++ header-only implementation of Grisu2 algorithm from the publication:
@ -20,8 +20,9 @@
#define RAPIDJSON_DIYFP_H_
#include "../rapidjson.h"
#include <limits>
#if defined(_MSC_VER) && defined(_M_AMD64)
#if defined(_MSC_VER) && defined(_M_AMD64) && !defined(__INTEL_COMPILER)
#include <intrin.h>
#pragma intrinsic(_BitScanReverse64)
#pragma intrinsic(_umul128)
@ -56,7 +57,7 @@ struct DiyFp {
if (biased_e != 0) {
f = significand + kDpHiddenBit;
e = biased_e - kDpExponentBias;
}
}
else {
f = significand;
e = kDpMinExponent + 1;
@ -99,6 +100,7 @@ struct DiyFp {
}
DiyFp Normalize() const {
RAPIDJSON_ASSERT(f != 0); // https://stackoverflow.com/a/26809183/291737
#if defined(_MSC_VER) && defined(_M_AMD64)
unsigned long index;
_BitScanReverse64(&index, f);
@ -141,7 +143,16 @@ struct DiyFp {
double d;
uint64_t u64;
}u;
const uint64_t be = (e == kDpDenormalExponent && (f & kDpHiddenBit) == 0) ? 0 :
RAPIDJSON_ASSERT(f <= kDpHiddenBit + kDpSignificandMask);
if (e < kDpDenormalExponent) {
// Underflow.
return 0.0;
}
if (e >= kDpMaxExponent) {
// Overflow.
return std::numeric_limits<double>::infinity();
}
const uint64_t be = (e == kDpDenormalExponent && (f & kDpHiddenBit) == 0) ? 0 :
static_cast<uint64_t>(e + kDpExponentBias);
u.u64 = (f & kDpSignificandMask) | (be << kDpSignificandSize);
return u.d;
@ -220,9 +231,10 @@ inline DiyFp GetCachedPowerByIndex(size_t index) {
641, 667, 694, 720, 747, 774, 800, 827, 853, 880,
907, 933, 960, 986, 1013, 1039, 1066
};
RAPIDJSON_ASSERT(index < 87);
return DiyFp(kCachedPowers_F[index], kCachedPowers_E[index]);
}
inline DiyFp GetCachedPower(int e, int* K) {
//int k = static_cast<int>(ceil((-61 - e) * 0.30102999566398114)) + 374;
@ -238,10 +250,11 @@ inline DiyFp GetCachedPower(int e, int* K) {
}
inline DiyFp GetCachedPower10(int exp, int *outExp) {
unsigned index = (static_cast<unsigned>(exp) + 348u) / 8u;
*outExp = -348 + static_cast<int>(index) * 8;
return GetCachedPowerByIndex(index);
}
RAPIDJSON_ASSERT(exp >= -348);
unsigned index = static_cast<unsigned>(exp + 348) / 8u;
*outExp = -348 + static_cast<int>(index) * 8;
return GetCachedPowerByIndex(index);
}
#ifdef __GNUC__
RAPIDJSON_DIAG_POP

View file

@ -41,7 +41,7 @@ inline void GrisuRound(char* buffer, int len, uint64_t delta, uint64_t rest, uin
}
}
inline unsigned CountDecimalDigit32(uint32_t n) {
inline int CountDecimalDigit32(uint32_t n) {
// Simple pure C++ implementation was faster than __builtin_clz version in this situation.
if (n < 10) return 1;
if (n < 100) return 2;
@ -63,7 +63,7 @@ inline void DigitGen(const DiyFp& W, const DiyFp& Mp, uint64_t delta, char* buff
const DiyFp wp_w = Mp - W;
uint32_t p1 = static_cast<uint32_t>(Mp.f >> -one.e);
uint64_t p2 = Mp.f & (one.f - 1);
unsigned kappa = CountDecimalDigit32(p1); // kappa in [0, 9]
int kappa = CountDecimalDigit32(p1); // kappa in [0, 9]
*len = 0;
while (kappa > 0) {
@ -102,8 +102,8 @@ inline void DigitGen(const DiyFp& W, const DiyFp& Mp, uint64_t delta, char* buff
kappa--;
if (p2 < delta) {
*K += kappa;
int index = -static_cast<int>(kappa);
GrisuRound(buffer, *len, delta, p2, one.f, wp_w.f * (index < 9 ? kPow10[-static_cast<int>(kappa)] : 0));
int index = -kappa;
GrisuRound(buffer, *len, delta, p2, one.f, wp_w.f * (index < 9 ? kPow10[index] : 0));
return;
}
}

View file

@ -48,13 +48,13 @@ public:
int IntegerExponent() const { return (IsNormal() ? Exponent() : kDenormalExponent) - kSignificandSize; }
uint64_t ToBias() const { return (u_ & kSignMask) ? ~u_ + 1 : u_ | kSignMask; }
static unsigned EffectiveSignificandSize(int order) {
static int EffectiveSignificandSize(int order) {
if (order >= -1021)
return 53;
else if (order <= -1074)
return 0;
else
return static_cast<unsigned>(order) + 1074;
return order + 1074;
}
private:

View file

@ -1,5 +1,5 @@
// 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
@ -7,9 +7,9 @@
//
// 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
// 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_ITOA_
@ -37,12 +37,14 @@ inline const char* GetDigitsLut() {
}
inline char* u32toa(uint32_t value, char* buffer) {
RAPIDJSON_ASSERT(buffer != 0);
const char* cDigitsLut = GetDigitsLut();
if (value < 10000) {
const uint32_t d1 = (value / 100) << 1;
const uint32_t d2 = (value % 100) << 1;
if (value >= 1000)
*buffer++ = cDigitsLut[d1];
if (value >= 100)
@ -55,13 +57,13 @@ inline char* u32toa(uint32_t value, char* buffer) {
// value = bbbbcccc
const uint32_t b = value / 10000;
const uint32_t c = value % 10000;
const uint32_t d1 = (b / 100) << 1;
const uint32_t d2 = (b % 100) << 1;
const uint32_t d3 = (c / 100) << 1;
const uint32_t d4 = (c % 100) << 1;
if (value >= 10000000)
*buffer++ = cDigitsLut[d1];
if (value >= 1000000)
@ -69,7 +71,7 @@ inline char* u32toa(uint32_t value, char* buffer) {
if (value >= 100000)
*buffer++ = cDigitsLut[d2];
*buffer++ = cDigitsLut[d2 + 1];
*buffer++ = cDigitsLut[d3];
*buffer++ = cDigitsLut[d3 + 1];
*buffer++ = cDigitsLut[d4];
@ -77,10 +79,10 @@ inline char* u32toa(uint32_t value, char* buffer) {
}
else {
// value = aabbbbcccc in decimal
const uint32_t a = value / 100000000; // 1 to 42
value %= 100000000;
if (a >= 10) {
const unsigned i = a << 1;
*buffer++ = cDigitsLut[i];
@ -91,13 +93,13 @@ inline char* u32toa(uint32_t value, char* buffer) {
const uint32_t b = value / 10000; // 0 to 9999
const uint32_t c = value % 10000; // 0 to 9999
const uint32_t d1 = (b / 100) << 1;
const uint32_t d2 = (b % 100) << 1;
const uint32_t d3 = (c / 100) << 1;
const uint32_t d4 = (c % 100) << 1;
*buffer++ = cDigitsLut[d1];
*buffer++ = cDigitsLut[d1 + 1];
*buffer++ = cDigitsLut[d2];
@ -111,6 +113,7 @@ inline char* u32toa(uint32_t value, char* buffer) {
}
inline char* i32toa(int32_t value, char* buffer) {
RAPIDJSON_ASSERT(buffer != 0);
uint32_t u = static_cast<uint32_t>(value);
if (value < 0) {
*buffer++ = '-';
@ -121,6 +124,7 @@ inline char* i32toa(int32_t value, char* buffer) {
}
inline char* u64toa(uint64_t value, char* buffer) {
RAPIDJSON_ASSERT(buffer != 0);
const char* cDigitsLut = GetDigitsLut();
const uint64_t kTen8 = 100000000;
const uint64_t kTen9 = kTen8 * 10;
@ -131,13 +135,13 @@ inline char* u64toa(uint64_t value, char* buffer) {
const uint64_t kTen14 = kTen8 * 1000000;
const uint64_t kTen15 = kTen8 * 10000000;
const uint64_t kTen16 = kTen8 * kTen8;
if (value < kTen8) {
uint32_t v = static_cast<uint32_t>(value);
if (v < 10000) {
const uint32_t d1 = (v / 100) << 1;
const uint32_t d2 = (v % 100) << 1;
if (v >= 1000)
*buffer++ = cDigitsLut[d1];
if (v >= 100)
@ -150,13 +154,13 @@ inline char* u64toa(uint64_t value, char* buffer) {
// value = bbbbcccc
const uint32_t b = v / 10000;
const uint32_t c = v % 10000;
const uint32_t d1 = (b / 100) << 1;
const uint32_t d2 = (b % 100) << 1;
const uint32_t d3 = (c / 100) << 1;
const uint32_t d4 = (c % 100) << 1;
if (value >= 10000000)
*buffer++ = cDigitsLut[d1];
if (value >= 1000000)
@ -164,7 +168,7 @@ inline char* u64toa(uint64_t value, char* buffer) {
if (value >= 100000)
*buffer++ = cDigitsLut[d2];
*buffer++ = cDigitsLut[d2 + 1];
*buffer++ = cDigitsLut[d3];
*buffer++ = cDigitsLut[d3 + 1];
*buffer++ = cDigitsLut[d4];
@ -174,22 +178,22 @@ inline char* u64toa(uint64_t value, char* buffer) {
else if (value < kTen16) {
const uint32_t v0 = static_cast<uint32_t>(value / kTen8);
const uint32_t v1 = static_cast<uint32_t>(value % kTen8);
const uint32_t b0 = v0 / 10000;
const uint32_t c0 = v0 % 10000;
const uint32_t d1 = (b0 / 100) << 1;
const uint32_t d2 = (b0 % 100) << 1;
const uint32_t d3 = (c0 / 100) << 1;
const uint32_t d4 = (c0 % 100) << 1;
const uint32_t b1 = v1 / 10000;
const uint32_t c1 = v1 % 10000;
const uint32_t d5 = (b1 / 100) << 1;
const uint32_t d6 = (b1 % 100) << 1;
const uint32_t d7 = (c1 / 100) << 1;
const uint32_t d8 = (c1 % 100) << 1;
@ -207,9 +211,8 @@ inline char* u64toa(uint64_t value, char* buffer) {
*buffer++ = cDigitsLut[d3 + 1];
if (value >= kTen9)
*buffer++ = cDigitsLut[d4];
if (value >= kTen8)
*buffer++ = cDigitsLut[d4 + 1];
*buffer++ = cDigitsLut[d4 + 1];
*buffer++ = cDigitsLut[d5];
*buffer++ = cDigitsLut[d5 + 1];
*buffer++ = cDigitsLut[d6];
@ -222,7 +225,7 @@ inline char* u64toa(uint64_t value, char* buffer) {
else {
const uint32_t a = static_cast<uint32_t>(value / kTen16); // 1 to 1844
value %= kTen16;
if (a < 10)
*buffer++ = static_cast<char>('0' + static_cast<char>(a));
else if (a < 100) {
@ -232,7 +235,7 @@ inline char* u64toa(uint64_t value, char* buffer) {
}
else if (a < 1000) {
*buffer++ = static_cast<char>('0' + static_cast<char>(a / 100));
const uint32_t i = (a % 100) << 1;
*buffer++ = cDigitsLut[i];
*buffer++ = cDigitsLut[i + 1];
@ -245,28 +248,28 @@ inline char* u64toa(uint64_t value, char* buffer) {
*buffer++ = cDigitsLut[j];
*buffer++ = cDigitsLut[j + 1];
}
const uint32_t v0 = static_cast<uint32_t>(value / kTen8);
const uint32_t v1 = static_cast<uint32_t>(value % kTen8);
const uint32_t b0 = v0 / 10000;
const uint32_t c0 = v0 % 10000;
const uint32_t d1 = (b0 / 100) << 1;
const uint32_t d2 = (b0 % 100) << 1;
const uint32_t d3 = (c0 / 100) << 1;
const uint32_t d4 = (c0 % 100) << 1;
const uint32_t b1 = v1 / 10000;
const uint32_t c1 = v1 % 10000;
const uint32_t d5 = (b1 / 100) << 1;
const uint32_t d6 = (b1 % 100) << 1;
const uint32_t d7 = (c1 / 100) << 1;
const uint32_t d8 = (c1 % 100) << 1;
*buffer++ = cDigitsLut[d1];
*buffer++ = cDigitsLut[d1 + 1];
*buffer++ = cDigitsLut[d2];
@ -284,11 +287,12 @@ inline char* u64toa(uint64_t value, char* buffer) {
*buffer++ = cDigitsLut[d8];
*buffer++ = cDigitsLut[d8 + 1];
}
return buffer;
}
inline char* i64toa(int64_t value, char* buffer) {
RAPIDJSON_ASSERT(buffer != 0);
uint64_t u = static_cast<uint64_t>(value);
if (value < 0) {
*buffer++ = '-';

View file

@ -21,7 +21,8 @@
RAPIDJSON_DIAG_PUSH
RAPIDJSON_DIAG_OFF(effc++)
#endif
#if defined(_MSC_VER)
#if defined(_MSC_VER) && !defined(__clang__)
RAPIDJSON_DIAG_PUSH
RAPIDJSON_DIAG_OFF(6334)
#endif
@ -174,7 +175,11 @@ template <typename T> struct RemoveSfinaeTag<SfinaeTag&(*)(T)> { typedef T Type;
RAPIDJSON_NAMESPACE_END
//@endcond
#if defined(__GNUC__) || defined(_MSC_VER)
#if defined(_MSC_VER) && !defined(__clang__)
RAPIDJSON_DIAG_POP
#endif
#ifdef __GNUC__
RAPIDJSON_DIAG_POP
#endif

View file

@ -24,16 +24,17 @@ RAPIDJSON_DIAG_PUSH
RAPIDJSON_DIAG_OFF(padded)
RAPIDJSON_DIAG_OFF(switch-enum)
RAPIDJSON_DIAG_OFF(implicit-fallthrough)
#elif defined(_MSC_VER)
RAPIDJSON_DIAG_PUSH
RAPIDJSON_DIAG_OFF(4512) // assignment operator could not be generated
#endif
#ifdef __GNUC__
RAPIDJSON_DIAG_PUSH
RAPIDJSON_DIAG_OFF(effc++)
#if __GNUC__ >= 7
RAPIDJSON_DIAG_OFF(implicit-fallthrough)
#endif
#ifdef _MSC_VER
RAPIDJSON_DIAG_PUSH
RAPIDJSON_DIAG_OFF(4512) // assignment operator could not be generated
#endif
#ifndef RAPIDJSON_REGEX_VERBOSE
@ -43,12 +44,40 @@ RAPIDJSON_DIAG_OFF(4512) // assignment operator could not be generated
RAPIDJSON_NAMESPACE_BEGIN
namespace internal {
///////////////////////////////////////////////////////////////////////////////
// DecodedStream
template <typename SourceStream, typename Encoding>
class DecodedStream {
public:
DecodedStream(SourceStream& ss) : ss_(ss), codepoint_() { Decode(); }
unsigned Peek() { return codepoint_; }
unsigned Take() {
unsigned c = codepoint_;
if (c) // No further decoding when '\0'
Decode();
return c;
}
private:
void Decode() {
if (!Encoding::Decode(ss_, &codepoint_))
codepoint_ = 0;
}
SourceStream& ss_;
unsigned codepoint_;
};
///////////////////////////////////////////////////////////////////////////////
// GenericRegex
static const SizeType kRegexInvalidState = ~SizeType(0); //!< Represents an invalid index in GenericRegex::State::out, out1
static const SizeType kRegexInvalidRange = ~SizeType(0);
template <typename Encoding, typename Allocator>
class GenericRegexSearch;
//! Regular expression engine with subset of ECMAscript grammar.
/*!
Supported regular expression syntax:
@ -84,45 +113,29 @@ static const SizeType kRegexInvalidRange = ~SizeType(0);
template <typename Encoding, typename Allocator = CrtAllocator>
class GenericRegex {
public:
typedef Encoding EncodingType;
typedef typename Encoding::Ch Ch;
template <typename, typename> friend class GenericRegexSearch;
GenericRegex(const Ch* source, Allocator* allocator = 0) :
states_(allocator, 256), ranges_(allocator, 256), root_(kRegexInvalidState), stateCount_(), rangeCount_(),
stateSet_(), state0_(allocator, 0), state1_(allocator, 0), anchorBegin_(), anchorEnd_()
ownAllocator_(allocator ? 0 : RAPIDJSON_NEW(Allocator)()), allocator_(allocator ? allocator : ownAllocator_),
states_(allocator_, 256), ranges_(allocator_, 256), root_(kRegexInvalidState), stateCount_(), rangeCount_(),
anchorBegin_(), anchorEnd_()
{
GenericStringStream<Encoding> ss(source);
DecodedStream<GenericStringStream<Encoding> > ds(ss);
DecodedStream<GenericStringStream<Encoding>, Encoding> ds(ss);
Parse(ds);
}
~GenericRegex() {
Allocator::Free(stateSet_);
~GenericRegex()
{
RAPIDJSON_DELETE(ownAllocator_);
}
bool IsValid() const {
return root_ != kRegexInvalidState;
}
template <typename InputStream>
bool Match(InputStream& is) const {
return SearchWithAnchoring(is, true, true);
}
bool Match(const Ch* s) const {
GenericStringStream<Encoding> is(s);
return Match(is);
}
template <typename InputStream>
bool Search(InputStream& is) const {
return SearchWithAnchoring(is, anchorBegin_, anchorEnd_);
}
bool Search(const Ch* s) const {
GenericStringStream<Encoding> is(s);
return Search(is);
}
private:
enum Operator {
kZeroOrOne,
@ -157,28 +170,6 @@ private:
SizeType minIndex;
};
template <typename SourceStream>
class DecodedStream {
public:
DecodedStream(SourceStream& ss) : ss_(ss), codepoint_() { Decode(); }
unsigned Peek() { return codepoint_; }
unsigned Take() {
unsigned c = codepoint_;
if (c) // No further decoding when '\0'
Decode();
return c;
}
private:
void Decode() {
if (!Encoding::Decode(ss_, &codepoint_))
codepoint_ = 0;
}
SourceStream& ss_;
unsigned codepoint_;
};
State& GetState(SizeType index) {
RAPIDJSON_ASSERT(index < stateCount_);
return states_.template Bottom<State>()[index];
@ -200,11 +191,10 @@ private:
}
template <typename InputStream>
void Parse(DecodedStream<InputStream>& ds) {
Allocator allocator;
Stack<Allocator> operandStack(&allocator, 256); // Frag
Stack<Allocator> operatorStack(&allocator, 256); // Operator
Stack<Allocator> atomCountStack(&allocator, 256); // unsigned (Atom per parenthesis)
void Parse(DecodedStream<InputStream, Encoding>& ds) {
Stack<Allocator> operandStack(allocator_, 256); // Frag
Stack<Allocator> operatorStack(allocator_, 256); // Operator
Stack<Allocator> atomCountStack(allocator_, 256); // unsigned (Atom per parenthesis)
*atomCountStack.template Push<unsigned>() = 0;
@ -327,14 +317,6 @@ private:
printf("\n");
#endif
}
// Preallocate buffer for SearchWithAnchoring()
RAPIDJSON_ASSERT(stateSet_ == 0);
if (stateCount_ > 0) {
stateSet_ = static_cast<unsigned*>(states_.GetAllocator().Malloc(GetStateSetSize()));
state0_.template Reserve<SizeType>(stateCount_);
state1_.template Reserve<SizeType>(stateCount_);
}
}
SizeType NewState(SizeType out, SizeType out1, unsigned codepoint) {
@ -413,8 +395,7 @@ private:
}
return false;
default:
RAPIDJSON_ASSERT(op == kOneOrMore);
case kOneOrMore:
if (operandStack.GetSize() >= sizeof(Frag)) {
Frag e = *operandStack.template Pop<Frag>(1);
SizeType s = NewState(kRegexInvalidState, e.start, 0);
@ -423,6 +404,10 @@ private:
return true;
}
return false;
default:
// syntax error (e.g. unclosed kLeftParenthesis)
return false;
}
}
@ -483,7 +468,7 @@ private:
}
template <typename InputStream>
bool ParseUnsigned(DecodedStream<InputStream>& ds, unsigned* u) {
bool ParseUnsigned(DecodedStream<InputStream, Encoding>& ds, unsigned* u) {
unsigned r = 0;
if (ds.Peek() < '0' || ds.Peek() > '9')
return false;
@ -497,7 +482,7 @@ private:
}
template <typename InputStream>
bool ParseRange(DecodedStream<InputStream>& ds, SizeType* range) {
bool ParseRange(DecodedStream<InputStream, Encoding>& ds, SizeType* range) {
bool isBegin = true;
bool negate = false;
int step = 0;
@ -575,7 +560,7 @@ private:
}
template <typename InputStream>
bool CharacterEscape(DecodedStream<InputStream>& ds, unsigned* escapedCodepoint) {
bool CharacterEscape(DecodedStream<InputStream, Encoding>& ds, unsigned* escapedCodepoint) {
unsigned codepoint;
switch (codepoint = ds.Take()) {
case '^':
@ -603,72 +588,8 @@ private:
}
}
template <typename InputStream>
bool SearchWithAnchoring(InputStream& is, bool anchorBegin, bool anchorEnd) const {
RAPIDJSON_ASSERT(IsValid());
DecodedStream<InputStream> ds(is);
state0_.Clear();
Stack<Allocator> *current = &state0_, *next = &state1_;
const size_t stateSetSize = GetStateSetSize();
std::memset(stateSet_, 0, stateSetSize);
bool matched = AddState(*current, root_);
unsigned codepoint;
while (!current->Empty() && (codepoint = ds.Take()) != 0) {
std::memset(stateSet_, 0, stateSetSize);
next->Clear();
matched = false;
for (const SizeType* s = current->template Bottom<SizeType>(); s != current->template End<SizeType>(); ++s) {
const State& sr = GetState(*s);
if (sr.codepoint == codepoint ||
sr.codepoint == kAnyCharacterClass ||
(sr.codepoint == kRangeCharacterClass && MatchRange(sr.rangeStart, codepoint)))
{
matched = AddState(*next, sr.out) || matched;
if (!anchorEnd && matched)
return true;
}
if (!anchorBegin)
AddState(*next, root_);
}
internal::Swap(current, next);
}
return matched;
}
size_t GetStateSetSize() const {
return (stateCount_ + 31) / 32 * 4;
}
// Return whether the added states is a match state
bool AddState(Stack<Allocator>& l, SizeType index) const {
RAPIDJSON_ASSERT(index != kRegexInvalidState);
const State& s = GetState(index);
if (s.out1 != kRegexInvalidState) { // Split
bool matched = AddState(l, s.out);
return AddState(l, s.out1) || matched;
}
else if (!(stateSet_[index >> 5] & (1 << (index & 31)))) {
stateSet_[index >> 5] |= (1 << (index & 31));
*l.template PushUnsafe<SizeType>() = index;
}
return s.out == kRegexInvalidState; // by using PushUnsafe() above, we can ensure s is not validated due to reallocation.
}
bool MatchRange(SizeType rangeIndex, unsigned codepoint) const {
bool yes = (GetRange(rangeIndex).start & kRangeNegationFlag) == 0;
while (rangeIndex != kRegexInvalidRange) {
const Range& r = GetRange(rangeIndex);
if (codepoint >= (r.start & ~kRangeNegationFlag) && codepoint <= r.end)
return yes;
rangeIndex = r.next;
}
return !yes;
}
Allocator* ownAllocator_;
Allocator* allocator_;
Stack<Allocator> states_;
Stack<Allocator> ranges_;
SizeType root_;
@ -678,23 +599,141 @@ private:
static const unsigned kInfinityQuantifier = ~0u;
// For SearchWithAnchoring()
uint32_t* stateSet_; // allocated by states_.GetAllocator()
mutable Stack<Allocator> state0_;
mutable Stack<Allocator> state1_;
bool anchorBegin_;
bool anchorEnd_;
};
template <typename RegexType, typename Allocator = CrtAllocator>
class GenericRegexSearch {
public:
typedef typename RegexType::EncodingType Encoding;
typedef typename Encoding::Ch Ch;
GenericRegexSearch(const RegexType& regex, Allocator* allocator = 0) :
regex_(regex), allocator_(allocator), ownAllocator_(0),
state0_(allocator, 0), state1_(allocator, 0), stateSet_()
{
RAPIDJSON_ASSERT(regex_.IsValid());
if (!allocator_)
ownAllocator_ = allocator_ = RAPIDJSON_NEW(Allocator)();
stateSet_ = static_cast<unsigned*>(allocator_->Malloc(GetStateSetSize()));
state0_.template Reserve<SizeType>(regex_.stateCount_);
state1_.template Reserve<SizeType>(regex_.stateCount_);
}
~GenericRegexSearch() {
Allocator::Free(stateSet_);
RAPIDJSON_DELETE(ownAllocator_);
}
template <typename InputStream>
bool Match(InputStream& is) {
return SearchWithAnchoring(is, true, true);
}
bool Match(const Ch* s) {
GenericStringStream<Encoding> is(s);
return Match(is);
}
template <typename InputStream>
bool Search(InputStream& is) {
return SearchWithAnchoring(is, regex_.anchorBegin_, regex_.anchorEnd_);
}
bool Search(const Ch* s) {
GenericStringStream<Encoding> is(s);
return Search(is);
}
private:
typedef typename RegexType::State State;
typedef typename RegexType::Range Range;
template <typename InputStream>
bool SearchWithAnchoring(InputStream& is, bool anchorBegin, bool anchorEnd) {
DecodedStream<InputStream, Encoding> ds(is);
state0_.Clear();
Stack<Allocator> *current = &state0_, *next = &state1_;
const size_t stateSetSize = GetStateSetSize();
std::memset(stateSet_, 0, stateSetSize);
bool matched = AddState(*current, regex_.root_);
unsigned codepoint;
while (!current->Empty() && (codepoint = ds.Take()) != 0) {
std::memset(stateSet_, 0, stateSetSize);
next->Clear();
matched = false;
for (const SizeType* s = current->template Bottom<SizeType>(); s != current->template End<SizeType>(); ++s) {
const State& sr = regex_.GetState(*s);
if (sr.codepoint == codepoint ||
sr.codepoint == RegexType::kAnyCharacterClass ||
(sr.codepoint == RegexType::kRangeCharacterClass && MatchRange(sr.rangeStart, codepoint)))
{
matched = AddState(*next, sr.out) || matched;
if (!anchorEnd && matched)
return true;
}
if (!anchorBegin)
AddState(*next, regex_.root_);
}
internal::Swap(current, next);
}
return matched;
}
size_t GetStateSetSize() const {
return (regex_.stateCount_ + 31) / 32 * 4;
}
// Return whether the added states is a match state
bool AddState(Stack<Allocator>& l, SizeType index) {
RAPIDJSON_ASSERT(index != kRegexInvalidState);
const State& s = regex_.GetState(index);
if (s.out1 != kRegexInvalidState) { // Split
bool matched = AddState(l, s.out);
return AddState(l, s.out1) || matched;
}
else if (!(stateSet_[index >> 5] & (1u << (index & 31)))) {
stateSet_[index >> 5] |= (1u << (index & 31));
*l.template PushUnsafe<SizeType>() = index;
}
return s.out == kRegexInvalidState; // by using PushUnsafe() above, we can ensure s is not validated due to reallocation.
}
bool MatchRange(SizeType rangeIndex, unsigned codepoint) const {
bool yes = (regex_.GetRange(rangeIndex).start & RegexType::kRangeNegationFlag) == 0;
while (rangeIndex != kRegexInvalidRange) {
const Range& r = regex_.GetRange(rangeIndex);
if (codepoint >= (r.start & ~RegexType::kRangeNegationFlag) && codepoint <= r.end)
return yes;
rangeIndex = r.next;
}
return !yes;
}
const RegexType& regex_;
Allocator* allocator_;
Allocator* ownAllocator_;
Stack<Allocator> state0_;
Stack<Allocator> state1_;
uint32_t* stateSet_;
};
typedef GenericRegex<UTF8<> > Regex;
typedef GenericRegexSearch<Regex> RegexSearch;
} // namespace internal
RAPIDJSON_NAMESPACE_END
#ifdef __clang__
#ifdef __GNUC__
RAPIDJSON_DIAG_POP
#endif
#ifdef _MSC_VER
#if defined(__clang__) || defined(_MSC_VER)
RAPIDJSON_DIAG_POP
#endif

View file

@ -17,6 +17,7 @@
#include "../allocators.h"
#include "swap.h"
#include <cstddef>
#if defined(__clang__)
RAPIDJSON_DIAG_PUSH
@ -100,7 +101,7 @@ public:
void ShrinkToFit() {
if (Empty()) {
// If the stack is empty, completely deallocate the memory.
Allocator::Free(stack_);
Allocator::Free(stack_); // NOLINT (+clang-analyzer-unix.Malloc)
stack_ = 0;
stackTop_ = 0;
stackEnd_ = 0;
@ -114,7 +115,7 @@ public:
template<typename T>
RAPIDJSON_FORCEINLINE void Reserve(size_t count = 1) {
// Expand the stack if needed
if (RAPIDJSON_UNLIKELY(stackTop_ + sizeof(T) * count > stackEnd_))
if (RAPIDJSON_UNLIKELY(static_cast<std::ptrdiff_t>(sizeof(T) * count) > (stackEnd_ - stackTop_)))
Expand<T>(count);
}
@ -126,7 +127,8 @@ public:
template<typename T>
RAPIDJSON_FORCEINLINE T* PushUnsafe(size_t count = 1) {
RAPIDJSON_ASSERT(stackTop_ + sizeof(T) * count <= stackEnd_);
RAPIDJSON_ASSERT(stackTop_);
RAPIDJSON_ASSERT(static_cast<std::ptrdiff_t>(sizeof(T) * count) <= (stackEnd_ - stackTop_));
T* ret = reinterpret_cast<T*>(stackTop_);
stackTop_ += sizeof(T) * count;
return ret;
@ -183,7 +185,7 @@ private:
size_t newCapacity;
if (stack_ == 0) {
if (!allocator_)
ownAllocator_ = allocator_ = RAPIDJSON_NEW(Allocator());
ownAllocator_ = allocator_ = RAPIDJSON_NEW(Allocator)();
newCapacity = initialCapacity_;
} else {
newCapacity = GetCapacity();

View file

@ -16,6 +16,7 @@
#define RAPIDJSON_INTERNAL_STRFUNC_H_
#include "../stream.h"
#include <cwchar>
RAPIDJSON_NAMESPACE_BEGIN
namespace internal {
@ -28,14 +29,27 @@ namespace internal {
*/
template <typename Ch>
inline SizeType StrLen(const Ch* s) {
RAPIDJSON_ASSERT(s != 0);
const Ch* p = s;
while (*p) ++p;
return SizeType(p - s);
}
template <>
inline SizeType StrLen(const char* s) {
return SizeType(std::strlen(s));
}
template <>
inline SizeType StrLen(const wchar_t* s) {
return SizeType(std::wcslen(s));
}
//! Returns number of code points in a encoded string.
template<typename Encoding>
bool CountStringCodePoint(const typename Encoding::Ch* s, SizeType length, SizeType* outCount) {
RAPIDJSON_ASSERT(s != 0);
RAPIDJSON_ASSERT(outCount != 0);
GenericStringStream<Encoding> is(s);
const typename Encoding::Ch* end = s + length;
SizeType count = 0;

View file

@ -19,6 +19,8 @@
#include "biginteger.h"
#include "diyfp.h"
#include "pow10.h"
#include <climits>
#include <limits>
RAPIDJSON_NAMESPACE_BEGIN
namespace internal {
@ -126,46 +128,46 @@ inline bool StrtodFast(double d, int p, double* result) {
}
// Compute an approximation and see if it is within 1/2 ULP
inline bool StrtodDiyFp(const char* decimals, size_t length, size_t decimalPosition, int exp, double* result) {
inline bool StrtodDiyFp(const char* decimals, int dLen, int dExp, double* result) {
uint64_t significand = 0;
size_t i = 0; // 2^64 - 1 = 18446744073709551615, 1844674407370955161 = 0x1999999999999999
for (; i < length; i++) {
int i = 0; // 2^64 - 1 = 18446744073709551615, 1844674407370955161 = 0x1999999999999999
for (; i < dLen; i++) {
if (significand > RAPIDJSON_UINT64_C2(0x19999999, 0x99999999) ||
(significand == RAPIDJSON_UINT64_C2(0x19999999, 0x99999999) && decimals[i] > '5'))
break;
significand = significand * 10u + static_cast<unsigned>(decimals[i] - '0');
}
if (i < length && decimals[i] >= '5') // Rounding
if (i < dLen && decimals[i] >= '5') // Rounding
significand++;
size_t remaining = length - i;
const unsigned kUlpShift = 3;
const unsigned kUlp = 1 << kUlpShift;
int remaining = dLen - i;
const int kUlpShift = 3;
const int kUlp = 1 << kUlpShift;
int64_t error = (remaining == 0) ? 0 : kUlp / 2;
DiyFp v(significand, 0);
v = v.Normalize();
error <<= -v.e;
const int dExp = static_cast<int>(decimalPosition) - static_cast<int>(i) + exp;
dExp += remaining;
int actualExp;
DiyFp cachedPower = GetCachedPower10(dExp, &actualExp);
if (actualExp != dExp) {
static const DiyFp kPow10[] = {
DiyFp(RAPIDJSON_UINT64_C2(0xa0000000, 00000000), -60), // 10^1
DiyFp(RAPIDJSON_UINT64_C2(0xc8000000, 00000000), -57), // 10^2
DiyFp(RAPIDJSON_UINT64_C2(0xfa000000, 00000000), -54), // 10^3
DiyFp(RAPIDJSON_UINT64_C2(0x9c400000, 00000000), -50), // 10^4
DiyFp(RAPIDJSON_UINT64_C2(0xc3500000, 00000000), -47), // 10^5
DiyFp(RAPIDJSON_UINT64_C2(0xf4240000, 00000000), -44), // 10^6
DiyFp(RAPIDJSON_UINT64_C2(0x98968000, 00000000), -40) // 10^7
DiyFp(RAPIDJSON_UINT64_C2(0xa0000000, 0x00000000), -60), // 10^1
DiyFp(RAPIDJSON_UINT64_C2(0xc8000000, 0x00000000), -57), // 10^2
DiyFp(RAPIDJSON_UINT64_C2(0xfa000000, 0x00000000), -54), // 10^3
DiyFp(RAPIDJSON_UINT64_C2(0x9c400000, 0x00000000), -50), // 10^4
DiyFp(RAPIDJSON_UINT64_C2(0xc3500000, 0x00000000), -47), // 10^5
DiyFp(RAPIDJSON_UINT64_C2(0xf4240000, 0x00000000), -44), // 10^6
DiyFp(RAPIDJSON_UINT64_C2(0x98968000, 0x00000000), -40) // 10^7
};
int adjustment = dExp - actualExp - 1;
RAPIDJSON_ASSERT(adjustment >= 0 && adjustment < 7);
v = v * kPow10[adjustment];
if (length + static_cast<unsigned>(adjustment)> 19u) // has more digits than decimal digits in 64-bit
int adjustment = dExp - actualExp;
RAPIDJSON_ASSERT(adjustment >= 1 && adjustment < 8);
v = v * kPow10[adjustment - 1];
if (dLen + adjustment > 19) // has more digits than decimal digits in 64-bit
error += kUlp / 2;
}
@ -177,17 +179,17 @@ inline bool StrtodDiyFp(const char* decimals, size_t length, size_t decimalPosit
v = v.Normalize();
error <<= oldExp - v.e;
const unsigned effectiveSignificandSize = Double::EffectiveSignificandSize(64 + v.e);
unsigned precisionSize = 64 - effectiveSignificandSize;
const int effectiveSignificandSize = Double::EffectiveSignificandSize(64 + v.e);
int precisionSize = 64 - effectiveSignificandSize;
if (precisionSize + kUlpShift >= 64) {
unsigned scaleExp = (precisionSize + kUlpShift) - 63;
int scaleExp = (precisionSize + kUlpShift) - 63;
v.f >>= scaleExp;
v.e += scaleExp;
error = (error >> scaleExp) + 1 + static_cast<int>(kUlp);
error = (error >> scaleExp) + 1 + kUlp;
precisionSize -= scaleExp;
}
DiyFp rounded(v.f >> precisionSize, v.e + static_cast<int>(precisionSize));
DiyFp rounded(v.f >> precisionSize, v.e + precisionSize);
const uint64_t precisionBits = (v.f & ((uint64_t(1) << precisionSize) - 1)) * kUlp;
const uint64_t halfWay = (uint64_t(1) << (precisionSize - 1)) * kUlp;
if (precisionBits >= halfWay + static_cast<unsigned>(error)) {
@ -203,9 +205,9 @@ inline bool StrtodDiyFp(const char* decimals, size_t length, size_t decimalPosit
return halfWay - static_cast<unsigned>(error) >= precisionBits || precisionBits >= halfWay + static_cast<unsigned>(error);
}
inline double StrtodBigInteger(double approx, const char* decimals, size_t length, size_t decimalPosition, int exp) {
const BigInteger dInt(decimals, length);
const int dExp = static_cast<int>(decimalPosition) - static_cast<int>(length) + exp;
inline double StrtodBigInteger(double approx, const char* decimals, int dLen, int dExp) {
RAPIDJSON_ASSERT(dLen >= 0);
const BigInteger dInt(decimals, static_cast<unsigned>(dLen));
Double a(approx);
int cmp = CheckWithinHalfULP(a.Value(), dInt, dExp);
if (cmp < 0)
@ -225,42 +227,61 @@ inline double StrtodFullPrecision(double d, int p, const char* decimals, size_t
RAPIDJSON_ASSERT(d >= 0.0);
RAPIDJSON_ASSERT(length >= 1);
double result;
double result = 0.0;
if (StrtodFast(d, p, &result))
return result;
RAPIDJSON_ASSERT(length <= INT_MAX);
int dLen = static_cast<int>(length);
RAPIDJSON_ASSERT(length >= decimalPosition);
RAPIDJSON_ASSERT(length - decimalPosition <= INT_MAX);
int dExpAdjust = static_cast<int>(length - decimalPosition);
RAPIDJSON_ASSERT(exp >= INT_MIN + dExpAdjust);
int dExp = exp - dExpAdjust;
// Make sure length+dExp does not overflow
RAPIDJSON_ASSERT(dExp <= INT_MAX - dLen);
// Trim leading zeros
while (*decimals == '0' && length > 1) {
length--;
while (dLen > 0 && *decimals == '0') {
dLen--;
decimals++;
decimalPosition--;
}
// Trim trailing zeros
while (decimals[length - 1] == '0' && length > 1) {
length--;
decimalPosition--;
exp++;
while (dLen > 0 && decimals[dLen - 1] == '0') {
dLen--;
dExp++;
}
if (dLen == 0) { // Buffer only contains zeros.
return 0.0;
}
// Trim right-most digits
const int kMaxDecimalDigit = 780;
if (static_cast<int>(length) > kMaxDecimalDigit) {
int delta = (static_cast<int>(length) - kMaxDecimalDigit);
exp += delta;
decimalPosition -= static_cast<unsigned>(delta);
length = kMaxDecimalDigit;
const int kMaxDecimalDigit = 767 + 1;
if (dLen > kMaxDecimalDigit) {
dExp += dLen - kMaxDecimalDigit;
dLen = kMaxDecimalDigit;
}
// If too small, underflow to zero
if (int(length) + exp < -324)
// If too small, underflow to zero.
// Any x <= 10^-324 is interpreted as zero.
if (dLen + dExp <= -324)
return 0.0;
if (StrtodDiyFp(decimals, length, decimalPosition, exp, &result))
// If too large, overflow to infinity.
// Any x >= 10^309 is interpreted as +infinity.
if (dLen + dExp > 309)
return std::numeric_limits<double>::infinity();
if (StrtodDiyFp(decimals, dLen, dExp, &result))
return result;
// Use approximation from StrtodDiyFp and make adjustment with BigInteger comparison
return StrtodBigInteger(result, decimals, length, decimalPosition, exp);
return StrtodBigInteger(result, decimals, dLen, dExp);
}
} // namespace internal

View file

@ -17,13 +17,12 @@
#include "stream.h"
#include <iosfwd>
#include <ios>
#ifdef __clang__
RAPIDJSON_DIAG_PUSH
RAPIDJSON_DIAG_OFF(padded)
#endif
#ifdef _MSC_VER
#elif defined(_MSC_VER)
RAPIDJSON_DIAG_PUSH
RAPIDJSON_DIAG_OFF(4351) // new behavior: elements of array 'array' will be default initialized
#endif
@ -50,57 +49,71 @@ template <typename StreamType>
class BasicIStreamWrapper {
public:
typedef typename StreamType::char_type Ch;
BasicIStreamWrapper(StreamType& stream) : stream_(stream), count_(), peekBuffer_() {}
Ch Peek() const {
typename StreamType::int_type c = stream_.peek();
return RAPIDJSON_LIKELY(c != StreamType::traits_type::eof()) ? static_cast<Ch>(c) : '\0';
//! Constructor.
/*!
\param stream stream opened for read.
*/
BasicIStreamWrapper(StreamType &stream) : stream_(stream), buffer_(peekBuffer_), bufferSize_(4), bufferLast_(0), current_(buffer_), readCount_(0), count_(0), eof_(false) {
Read();
}
Ch Take() {
typename StreamType::int_type c = stream_.get();
if (RAPIDJSON_LIKELY(c != StreamType::traits_type::eof())) {
count_++;
return static_cast<Ch>(c);
}
else
return '\0';
//! Constructor.
/*!
\param stream stream opened for read.
\param buffer user-supplied buffer.
\param bufferSize size of buffer in bytes. Must >=4 bytes.
*/
BasicIStreamWrapper(StreamType &stream, char* buffer, size_t bufferSize) : stream_(stream), buffer_(buffer), bufferSize_(bufferSize), bufferLast_(0), current_(buffer_), readCount_(0), count_(0), eof_(false) {
RAPIDJSON_ASSERT(bufferSize >= 4);
Read();
}
// tellg() may return -1 when failed. So we count by ourself.
size_t Tell() const { return count_; }
Ch Peek() const { return *current_; }
Ch Take() { Ch c = *current_; Read(); return c; }
size_t Tell() const { return count_ + static_cast<size_t>(current_ - buffer_); }
Ch* PutBegin() { RAPIDJSON_ASSERT(false); return 0; }
// Not implemented
void Put(Ch) { RAPIDJSON_ASSERT(false); }
void Flush() { RAPIDJSON_ASSERT(false); }
void Flush() { RAPIDJSON_ASSERT(false); }
Ch* PutBegin() { RAPIDJSON_ASSERT(false); return 0; }
size_t PutEnd(Ch*) { RAPIDJSON_ASSERT(false); return 0; }
// For encoding detection only.
const Ch* Peek4() const {
RAPIDJSON_ASSERT(sizeof(Ch) == 1); // Only usable for byte stream.
int i;
bool hasError = false;
for (i = 0; i < 4; ++i) {
typename StreamType::int_type c = stream_.get();
if (c == StreamType::traits_type::eof()) {
hasError = true;
stream_.clear();
break;
}
peekBuffer_[i] = static_cast<Ch>(c);
}
for (--i; i >= 0; --i)
stream_.putback(peekBuffer_[i]);
return !hasError ? peekBuffer_ : 0;
return (current_ + 4 - !eof_ <= bufferLast_) ? current_ : 0;
}
private:
BasicIStreamWrapper();
BasicIStreamWrapper(const BasicIStreamWrapper&);
BasicIStreamWrapper& operator=(const BasicIStreamWrapper&);
StreamType& stream_;
size_t count_; //!< Number of characters read. Note:
mutable Ch peekBuffer_[4];
void Read() {
if (current_ < bufferLast_)
++current_;
else if (!eof_) {
count_ += readCount_;
readCount_ = bufferSize_;
bufferLast_ = buffer_ + readCount_ - 1;
current_ = buffer_;
if (!stream_.read(buffer_, static_cast<std::streamsize>(bufferSize_))) {
readCount_ = static_cast<size_t>(stream_.gcount());
*(bufferLast_ = buffer_ + readCount_) = '\0';
eof_ = true;
}
}
}
StreamType &stream_;
Ch peekBuffer_[4], *buffer_;
size_t bufferSize_;
Ch *bufferLast_;
Ch *current_;
size_t readCount_;
size_t count_; //!< Number of characters read
bool eof_;
};
typedef BasicIStreamWrapper<std::istream> IStreamWrapper;

57
src/3rdparty/rapidjson/license.txt vendored Normal file
View file

@ -0,0 +1,57 @@
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.
If you have downloaded a copy of the RapidJSON binary from Tencent, please note that the RapidJSON binary is licensed under the MIT License.
If you have downloaded a copy of the RapidJSON source code from Tencent, please note that RapidJSON source code is licensed under the MIT License, except for the third-party components listed below which are subject to different license terms. Your integration of RapidJSON into your own projects may require compliance with the MIT License, as well as the other licenses applicable to the third-party components included within RapidJSON. To avoid the problematic JSON license in your own projects, it's sufficient to exclude the bin/jsonchecker/ directory, as it's the only code under the JSON license.
A copy of the MIT License is included in this file.
Other dependencies and licenses:
Open Source Software Licensed Under the BSD License:
--------------------------------------------------------------------
The msinttypes r29
Copyright (c) 2006-2013 Alexander Chemeris
All rights reserved.
Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
* Neither the name of copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Open Source Software Licensed Under the JSON License:
--------------------------------------------------------------------
json.org
Copyright (c) 2002 JSON.org
All Rights Reserved.
JSON_checker
Copyright (c) 2002 JSON.org
All Rights Reserved.
Terms of the JSON License:
---------------------------------------------------
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
The Software shall be used for Good, not Evil.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Terms of the MIT License:
--------------------------------------------------------------------
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

View file

@ -21,9 +21,7 @@
#ifdef __clang__
RAPIDJSON_DIAG_PUSH
RAPIDJSON_DIAG_OFF(switch-enum)
#endif
#ifdef _MSC_VER
#elif defined(_MSC_VER)
RAPIDJSON_DIAG_PUSH
RAPIDJSON_DIAG_OFF(4512) // assignment operator could not be generated
#endif
@ -165,7 +163,12 @@ public:
GenericPointer(const Token* tokens, size_t tokenCount) : allocator_(), ownAllocator_(), nameBuffer_(), tokens_(const_cast<Token*>(tokens)), tokenCount_(tokenCount), parseErrorOffset_(), parseErrorCode_(kPointerParseErrorNone) {}
//! Copy constructor.
GenericPointer(const GenericPointer& rhs, Allocator* allocator = 0) : allocator_(allocator), ownAllocator_(), nameBuffer_(), tokens_(), tokenCount_(), parseErrorOffset_(), parseErrorCode_(kPointerParseErrorNone) {
GenericPointer(const GenericPointer& rhs) : allocator_(rhs.allocator_), ownAllocator_(), nameBuffer_(), tokens_(), tokenCount_(), parseErrorOffset_(), parseErrorCode_(kPointerParseErrorNone) {
*this = rhs;
}
//! Copy constructor.
GenericPointer(const GenericPointer& rhs, Allocator* allocator) : allocator_(allocator), ownAllocator_(), nameBuffer_(), tokens_(), tokenCount_(), parseErrorOffset_(), parseErrorCode_(kPointerParseErrorNone) {
*this = rhs;
}
@ -197,6 +200,36 @@ public:
return *this;
}
//! Swap the content of this pointer with an other.
/*!
\param other The pointer to swap with.
\note Constant complexity.
*/
GenericPointer& Swap(GenericPointer& other) RAPIDJSON_NOEXCEPT {
internal::Swap(allocator_, other.allocator_);
internal::Swap(ownAllocator_, other.ownAllocator_);
internal::Swap(nameBuffer_, other.nameBuffer_);
internal::Swap(tokens_, other.tokens_);
internal::Swap(tokenCount_, other.tokenCount_);
internal::Swap(parseErrorOffset_, other.parseErrorOffset_);
internal::Swap(parseErrorCode_, other.parseErrorCode_);
return *this;
}
//! free-standing swap function helper
/*!
Helper function to enable support for common swap implementation pattern based on \c std::swap:
\code
void swap(MyClass& a, MyClass& b) {
using std::swap;
swap(a.pointer, b.pointer);
// ...
}
\endcode
\see Swap()
*/
friend inline void swap(GenericPointer& a, GenericPointer& b) RAPIDJSON_NOEXCEPT { a.Swap(b); }
//@}
//!@name Append token
@ -240,7 +273,7 @@ public:
template <typename T>
RAPIDJSON_DISABLEIF_RETURN((internal::NotExpr<internal::IsSame<typename internal::RemoveConst<T>::Type, Ch> >), (GenericPointer))
Append(T* name, Allocator* allocator = 0) const {
return Append(name, StrLen(name), allocator);
return Append(name, internal::StrLen(name), allocator);
}
#if RAPIDJSON_HAS_STDSTRING
@ -274,7 +307,7 @@ public:
else {
Ch name[21];
for (size_t i = 0; i <= length; i++)
name[i] = buffer[i];
name[i] = static_cast<Ch>(buffer[i]);
Token token = { name, length, index };
return Append(token, allocator);
}
@ -353,6 +386,33 @@ public:
*/
bool operator!=(const GenericPointer& rhs) const { return !(*this == rhs); }
//! Less than operator.
/*!
\note Invalid pointers are always greater than valid ones.
*/
bool operator<(const GenericPointer& rhs) const {
if (!IsValid())
return false;
if (!rhs.IsValid())
return true;
if (tokenCount_ != rhs.tokenCount_)
return tokenCount_ < rhs.tokenCount_;
for (size_t i = 0; i < tokenCount_; i++) {
if (tokens_[i].index != rhs.tokens_[i].index)
return tokens_[i].index < rhs.tokens_[i].index;
if (tokens_[i].length != rhs.tokens_[i].length)
return tokens_[i].length < rhs.tokens_[i].length;
if (int cmp = std::memcmp(tokens_[i].name, rhs.tokens_[i].name, sizeof(Ch) * tokens_[i].length))
return cmp < 0;
}
return false;
}
//@}
//!@name Stringify
@ -532,14 +592,14 @@ public:
*/
ValueType& GetWithDefault(ValueType& root, const ValueType& defaultValue, typename ValueType::AllocatorType& allocator) const {
bool alreadyExist;
Value& v = Create(root, allocator, &alreadyExist);
ValueType& v = Create(root, allocator, &alreadyExist);
return alreadyExist ? v : v.CopyFrom(defaultValue, allocator);
}
//! Query a value in a subtree with default null-terminated string.
ValueType& GetWithDefault(ValueType& root, const Ch* defaultValue, typename ValueType::AllocatorType& allocator) const {
bool alreadyExist;
Value& v = Create(root, allocator, &alreadyExist);
ValueType& v = Create(root, allocator, &alreadyExist);
return alreadyExist ? v : v.SetString(defaultValue, allocator);
}
@ -547,7 +607,7 @@ public:
//! Query a value in a subtree with default std::basic_string.
ValueType& GetWithDefault(ValueType& root, const std::basic_string<Ch>& defaultValue, typename ValueType::AllocatorType& allocator) const {
bool alreadyExist;
Value& v = Create(root, allocator, &alreadyExist);
ValueType& v = Create(root, allocator, &alreadyExist);
return alreadyExist ? v : v.SetString(defaultValue, allocator);
}
#endif
@ -758,7 +818,7 @@ private:
*/
Ch* CopyFromRaw(const GenericPointer& rhs, size_t extraToken = 0, size_t extraNameBufferSize = 0) {
if (!allocator_) // allocator is independently owned.
ownAllocator_ = allocator_ = RAPIDJSON_NEW(Allocator());
ownAllocator_ = allocator_ = RAPIDJSON_NEW(Allocator)();
size_t nameBufferSize = rhs.tokenCount_; // null terminators for tokens
for (Token *t = rhs.tokens_; t != rhs.tokens_ + rhs.tokenCount_; ++t)
@ -806,7 +866,7 @@ private:
// Create own allocator if user did not supply.
if (!allocator_)
ownAllocator_ = allocator_ = RAPIDJSON_NEW(Allocator());
ownAllocator_ = allocator_ = RAPIDJSON_NEW(Allocator)();
// Count number of '/' as tokenCount
tokenCount_ = 0;
@ -1029,8 +1089,8 @@ private:
unsigned char u = static_cast<unsigned char>(c);
static const char hexDigits[16] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' };
os_.Put('%');
os_.Put(hexDigits[u >> 4]);
os_.Put(hexDigits[u & 15]);
os_.Put(static_cast<typename OutputStream::Ch>(hexDigits[u >> 4]));
os_.Put(static_cast<typename OutputStream::Ch>(hexDigits[u & 15]));
}
private:
OutputStream& os_;
@ -1347,11 +1407,7 @@ bool EraseValueByPointer(T& root, const CharType(&source)[N]) {
RAPIDJSON_NAMESPACE_END
#ifdef __clang__
RAPIDJSON_DIAG_POP
#endif
#ifdef _MSC_VER
#if defined(__clang__) || defined(_MSC_VER)
RAPIDJSON_DIAG_POP
#endif

View file

@ -22,6 +22,11 @@ RAPIDJSON_DIAG_PUSH
RAPIDJSON_DIAG_OFF(effc++)
#endif
#if defined(__clang__)
RAPIDJSON_DIAG_PUSH
RAPIDJSON_DIAG_OFF(c++98-compat)
#endif
RAPIDJSON_NAMESPACE_BEGIN
//! Combination of PrettyWriter format flags.
@ -34,7 +39,7 @@ enum PrettyFormatOptions {
//! Writer with indentation and spacing.
/*!
\tparam OutputStream Type of ouptut os.
\tparam OutputStream Type of output os.
\tparam SourceEncoding Encoding of source string.
\tparam TargetEncoding Encoding of output stream.
\tparam StackAllocator Type of allocator for allocating memory of stack.
@ -42,7 +47,7 @@ enum PrettyFormatOptions {
template<typename OutputStream, typename SourceEncoding = UTF8<>, typename TargetEncoding = UTF8<>, typename StackAllocator = CrtAllocator, unsigned writeFlags = kWriteDefaultFlags>
class PrettyWriter : public Writer<OutputStream, SourceEncoding, TargetEncoding, StackAllocator, writeFlags> {
public:
typedef Writer<OutputStream, SourceEncoding, TargetEncoding, StackAllocator> Base;
typedef Writer<OutputStream, SourceEncoding, TargetEncoding, StackAllocator, writeFlags> Base;
typedef typename Base::Ch Ch;
//! Constructor
@ -57,6 +62,11 @@ public:
explicit PrettyWriter(StackAllocator* allocator = 0, size_t levelDepth = Base::kDefaultLevelDepth) :
Base(allocator, levelDepth), indentChar_(' '), indentCharCount_(4) {}
#if RAPIDJSON_HAS_CXX11_RVALUE_REFS
PrettyWriter(PrettyWriter&& rhs) :
Base(std::forward<PrettyWriter>(rhs)), indentChar_(rhs.indentChar_), indentCharCount_(rhs.indentCharCount_), formatOptions_(rhs.formatOptions_) {}
#endif
//! Set custom indentation.
/*! \param indentChar Character for indentation. Must be whitespace character (' ', '\\t', '\\n', '\\r').
\param indentCharCount Number of indent characters for each indentation level.
@ -82,24 +92,26 @@ public:
*/
//@{
bool Null() { PrettyPrefix(kNullType); return Base::WriteNull(); }
bool Bool(bool b) { PrettyPrefix(b ? kTrueType : kFalseType); return Base::WriteBool(b); }
bool Int(int i) { PrettyPrefix(kNumberType); return Base::WriteInt(i); }
bool Uint(unsigned u) { PrettyPrefix(kNumberType); return Base::WriteUint(u); }
bool Int64(int64_t i64) { PrettyPrefix(kNumberType); return Base::WriteInt64(i64); }
bool Uint64(uint64_t u64) { PrettyPrefix(kNumberType); return Base::WriteUint64(u64); }
bool Double(double d) { PrettyPrefix(kNumberType); return Base::WriteDouble(d); }
bool Null() { PrettyPrefix(kNullType); return Base::EndValue(Base::WriteNull()); }
bool Bool(bool b) { PrettyPrefix(b ? kTrueType : kFalseType); return Base::EndValue(Base::WriteBool(b)); }
bool Int(int i) { PrettyPrefix(kNumberType); return Base::EndValue(Base::WriteInt(i)); }
bool Uint(unsigned u) { PrettyPrefix(kNumberType); return Base::EndValue(Base::WriteUint(u)); }
bool Int64(int64_t i64) { PrettyPrefix(kNumberType); return Base::EndValue(Base::WriteInt64(i64)); }
bool Uint64(uint64_t u64) { PrettyPrefix(kNumberType); return Base::EndValue(Base::WriteUint64(u64)); }
bool Double(double d) { PrettyPrefix(kNumberType); return Base::EndValue(Base::WriteDouble(d)); }
bool RawNumber(const Ch* str, SizeType length, bool copy = false) {
RAPIDJSON_ASSERT(str != 0);
(void)copy;
PrettyPrefix(kNumberType);
return Base::WriteString(str, length);
return Base::EndValue(Base::WriteString(str, length));
}
bool String(const Ch* str, SizeType length, bool copy = false) {
RAPIDJSON_ASSERT(str != 0);
(void)copy;
PrettyPrefix(kStringType);
return Base::WriteString(str, length);
return Base::EndValue(Base::WriteString(str, length));
}
#if RAPIDJSON_HAS_STDSTRING
@ -124,19 +136,21 @@ public:
bool EndObject(SizeType memberCount = 0) {
(void)memberCount;
RAPIDJSON_ASSERT(Base::level_stack_.GetSize() >= sizeof(typename Base::Level));
RAPIDJSON_ASSERT(!Base::level_stack_.template Top<typename Base::Level>()->inArray);
RAPIDJSON_ASSERT(Base::level_stack_.GetSize() >= sizeof(typename Base::Level)); // not inside an Object
RAPIDJSON_ASSERT(!Base::level_stack_.template Top<typename Base::Level>()->inArray); // currently inside an Array, not Object
RAPIDJSON_ASSERT(0 == Base::level_stack_.template Top<typename Base::Level>()->valueCount % 2); // Object has a Key without a Value
bool empty = Base::level_stack_.template Pop<typename Base::Level>(1)->valueCount == 0;
if (!empty) {
Base::os_->Put('\n');
WriteIndent();
}
bool ret = Base::WriteEndObject();
bool ret = Base::EndValue(Base::WriteEndObject());
(void)ret;
RAPIDJSON_ASSERT(ret == true);
if (Base::level_stack_.Empty()) // end of json text
Base::os_->Flush();
Base::Flush();
return true;
}
@ -156,11 +170,11 @@ public:
Base::os_->Put('\n');
WriteIndent();
}
bool ret = Base::WriteEndArray();
bool ret = Base::EndValue(Base::WriteEndArray());
(void)ret;
RAPIDJSON_ASSERT(ret == true);
if (Base::level_stack_.Empty()) // end of json text
Base::os_->Flush();
Base::Flush();
return true;
}
@ -184,7 +198,11 @@ public:
\param type Type of the root of json.
\note When using PrettyWriter::RawValue(), the result json may not be indented correctly.
*/
bool RawValue(const Ch* json, size_t length, Type type) { PrettyPrefix(type); return Base::WriteRawValue(json, length); }
bool RawValue(const Ch* json, size_t length, Type type) {
RAPIDJSON_ASSERT(json != 0);
PrettyPrefix(type);
return Base::EndValue(Base::WriteRawValue(json, length));
}
protected:
void PrettyPrefix(Type type) {
@ -233,7 +251,7 @@ protected:
void WriteIndent() {
size_t count = (Base::level_stack_.GetSize() / sizeof(typename Base::Level)) * indentCharCount_;
PutN(*Base::os_, static_cast<typename TargetEncoding::Ch>(indentChar_), count);
PutN(*Base::os_, static_cast<typename OutputStream::Ch>(indentChar_), count);
}
Ch indentChar_;
@ -248,6 +266,10 @@ private:
RAPIDJSON_NAMESPACE_END
#if defined(__clang__)
RAPIDJSON_DIAG_POP
#endif
#ifdef __GNUC__
RAPIDJSON_DIAG_POP
#endif

View file

@ -26,7 +26,7 @@
Some RapidJSON features are configurable to adapt the library to a wide
variety of platforms, environments and usage scenarios. Most of the
features can be configured in terms of overriden or predefined
features can be configured in terms of overridden or predefined
preprocessor macros at compile-time.
Some additional customization is available in the \ref RAPIDJSON_ERRORS APIs.
@ -49,6 +49,11 @@
// 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
//!@endcond
/*! \def RAPIDJSON_MAJOR_VERSION
@ -214,7 +219,7 @@
# elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
# define RAPIDJSON_ENDIAN RAPIDJSON_BIGENDIAN
# else
# error Unknown machine endianess detected. User needs to define RAPIDJSON_ENDIAN.
# error Unknown machine endianness detected. User needs to define RAPIDJSON_ENDIAN.
# endif // __BYTE_ORDER__
// Detect with GLIBC's endian.h
# elif defined(__GLIBC__)
@ -224,7 +229,7 @@
# elif (__BYTE_ORDER == __BIG_ENDIAN)
# define RAPIDJSON_ENDIAN RAPIDJSON_BIGENDIAN
# else
# error Unknown machine endianess detected. User needs to define RAPIDJSON_ENDIAN.
# 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)
@ -236,12 +241,12 @@
# 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)
# 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 endianess detected. User needs to define RAPIDJSON_ENDIAN.
# error Unknown machine endianness detected. User needs to define RAPIDJSON_ENDIAN.
# endif
#endif // RAPIDJSON_ENDIAN
@ -264,16 +269,11 @@
/*! \ingroup RAPIDJSON_CONFIG
\param x pointer to align
Some machines require strict data alignment. Currently the default uses 4 bytes
alignment on 32-bit platforms and 8 bytes alignment for 64-bit platforms.
Some machines require strict data alignment. The default is 8 bytes.
User can customize by defining the RAPIDJSON_ALIGN function macro.
*/
#ifndef RAPIDJSON_ALIGN
#if RAPIDJSON_64BIT == 1
#define RAPIDJSON_ALIGN(x) (((x) + static_cast<uint64_t>(7u)) & ~static_cast<uint64_t>(7u))
#else
#define RAPIDJSON_ALIGN(x) (((x) + 3u) & ~3u)
#endif
#define RAPIDJSON_ALIGN(x) (((x) + static_cast<size_t>(7u)) & ~static_cast<size_t>(7u))
#endif
///////////////////////////////////////////////////////////////////////////////
@ -320,17 +320,17 @@
#endif
///////////////////////////////////////////////////////////////////////////////
// RAPIDJSON_SSE2/RAPIDJSON_SSE42/RAPIDJSON_SIMD
// RAPIDJSON_SSE2/RAPIDJSON_SSE42/RAPIDJSON_NEON/RAPIDJSON_SIMD
/*! \def RAPIDJSON_SIMD
\ingroup RAPIDJSON_CONFIG
\brief Enable SSE2/SSE4.2 optimization.
\brief Enable SSE2/SSE4.2/Neon optimization.
RapidJSON supports optimized implementations for some parsing operations
based on the SSE2 or SSE4.2 SIMD extensions on modern Intel-compatible
processors.
based on the SSE2, SSE4.2 or NEon SIMD extensions on modern Intel
or ARM compatible processors.
To enable these optimizations, two different symbols can be defined;
To enable these optimizations, three different symbols can be defined;
\code
// Enable SSE2 optimization.
#define RAPIDJSON_SSE2
@ -339,13 +339,17 @@
#define RAPIDJSON_SSE42
\endcode
\c RAPIDJSON_SSE42 takes precedence, if both are defined.
// Enable ARM Neon optimization.
#define RAPIDJSON_NEON
\endcode
\c RAPIDJSON_SSE42 takes precedence over SSE2, if both are defined.
If any of these symbols is defined, RapidJSON defines the macro
\c RAPIDJSON_SIMD to indicate the availability of the optimized code.
*/
#if defined(RAPIDJSON_SSE2) || defined(RAPIDJSON_SSE42) \
|| defined(RAPIDJSON_DOXYGEN_RUNNING)
|| defined(RAPIDJSON_NEON) || defined(RAPIDJSON_DOXYGEN_RUNNING)
#define RAPIDJSON_SIMD
#endif
@ -398,13 +402,22 @@ RAPIDJSON_NAMESPACE_END
\ref RAPIDJSON_ERRORS APIs.
*/
#ifndef RAPIDJSON_ASSERT
#define RAPIDJSON_ASSERT(x)
#include <cassert>
#define RAPIDJSON_ASSERT(x) assert(x)
#endif // RAPIDJSON_ASSERT
///////////////////////////////////////////////////////////////////////////////
// RAPIDJSON_STATIC_ASSERT
// Adopt from boost
// Prefer C++11 static_assert, if available
#ifndef RAPIDJSON_STATIC_ASSERT
#if __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__
//!@cond RAPIDJSON_HIDDEN_FROM_DOXYGEN
@ -412,14 +425,10 @@ RAPIDJSON_NAMESPACE_END
RAPIDJSON_NAMESPACE_BEGIN
template <bool x> struct STATIC_ASSERTION_FAILURE;
template <> struct STATIC_ASSERTION_FAILURE<true> { enum { value = 1 }; };
template<int x> struct StaticAssertTest {};
template <size_t x> struct StaticAssertTest {};
RAPIDJSON_NAMESPACE_END
#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
#if defined(__GNUC__)
#if defined(__GNUC__) || defined(__clang__)
#define RAPIDJSON_STATIC_ASSERT_UNUSED_ATTRIBUTE __attribute__((unused))
#else
#define RAPIDJSON_STATIC_ASSERT_UNUSED_ATTRIBUTE
@ -437,7 +446,7 @@ RAPIDJSON_NAMESPACE_END
typedef ::RAPIDJSON_NAMESPACE::StaticAssertTest< \
sizeof(::RAPIDJSON_NAMESPACE::STATIC_ASSERTION_FAILURE<bool(x) >)> \
RAPIDJSON_JOIN(StaticAssertTypedef, __LINE__) RAPIDJSON_STATIC_ASSERT_UNUSED_ATTRIBUTE
#endif
#endif // RAPIDJSON_STATIC_ASSERT
///////////////////////////////////////////////////////////////////////////////
// RAPIDJSON_LIKELY, RAPIDJSON_UNLIKELY
@ -529,13 +538,14 @@ RAPIDJSON_NAMESPACE_END
#ifndef RAPIDJSON_HAS_CXX11_RVALUE_REFS
#if defined(__clang__)
#if __has_feature(cxx_rvalue_references) && \
(defined(_LIBCPP_VERSION) || defined(__GLIBCXX__) && __GLIBCXX__ >= 20080306)
(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(_MSC_VER) && _MSC_VER >= 1600) || \
(defined(__SUNPRO_CC) && __SUNPRO_CC >= 0x5140 && defined(__GXX_EXPERIMENTAL_CXX0X__))
#define RAPIDJSON_HAS_CXX11_RVALUE_REFS 1
#else
@ -546,8 +556,9 @@ RAPIDJSON_NAMESPACE_END
#ifndef RAPIDJSON_HAS_CXX11_NOEXCEPT
#if 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 >= ????) // not yet supported
#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
@ -561,14 +572,19 @@ RAPIDJSON_NAMESPACE_END
// 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(4,3,0)) && defined(__GXX_EXPERIMENTAL_CXX0X__)) || \
(defined(_MSC_VER) && _MSC_VER >= 1700)
#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
@ -577,12 +593,38 @@ RAPIDJSON_NAMESPACE_END
//!@endcond
//! Assertion (in non-throwing contexts).
/*! \ingroup RAPIDJSON_CONFIG
Some functions provide a \c noexcept guarantee, if the compiler supports it.
In these cases, the \ref RAPIDJSON_ASSERT macro cannot be overridden to
throw an exception. This macro adds a separate customization point for
such cases.
Defaults to C \c assert() (as \ref RAPIDJSON_ASSERT), if \c noexcept is
supported, and to \ref RAPIDJSON_ASSERT otherwise.
*/
///////////////////////////////////////////////////////////////////////////////
// RAPIDJSON_NOEXCEPT_ASSERT
#ifndef RAPIDJSON_NOEXCEPT_ASSERT
#ifdef RAPIDJSON_ASSERT_THROWS
#if RAPIDJSON_HAS_CXX11_NOEXCEPT
#define RAPIDJSON_NOEXCEPT_ASSERT(x)
#else
#define RAPIDJSON_NOEXCEPT_ASSERT(x) RAPIDJSON_ASSERT(x)
#endif // RAPIDJSON_HAS_CXX11_NOEXCEPT
#else
#define RAPIDJSON_NOEXCEPT_ASSERT(x) RAPIDJSON_ASSERT(x)
#endif // RAPIDJSON_ASSERT_THROWS
#endif // RAPIDJSON_NOEXCEPT_ASSERT
///////////////////////////////////////////////////////////////////////////////
// new/delete
#ifndef RAPIDJSON_NEW
///! customization point for global \c new
#define RAPIDJSON_NEW(x) new x
#define RAPIDJSON_NEW(TypeName) new TypeName
#endif
#ifndef RAPIDJSON_DELETE
///! customization point for global \c delete

View file

@ -33,12 +33,8 @@
#include <nmmintrin.h>
#elif defined(RAPIDJSON_SSE2)
#include <emmintrin.h>
#endif
#ifdef _MSC_VER
RAPIDJSON_DIAG_PUSH
RAPIDJSON_DIAG_OFF(4127) // conditional expression is constant
RAPIDJSON_DIAG_OFF(4702) // unreachable code
#elif defined(RAPIDJSON_NEON)
#include <arm_neon.h>
#endif
#ifdef __clang__
@ -46,6 +42,10 @@ RAPIDJSON_DIAG_PUSH
RAPIDJSON_DIAG_OFF(old-style-cast)
RAPIDJSON_DIAG_OFF(padded)
RAPIDJSON_DIAG_OFF(switch-enum)
#elif defined(_MSC_VER)
RAPIDJSON_DIAG_PUSH
RAPIDJSON_DIAG_OFF(4127) // conditional expression is constant
RAPIDJSON_DIAG_OFF(4702) // unreachable code
#endif
#ifdef __GNUC__
@ -136,7 +136,7 @@ RAPIDJSON_NAMESPACE_BEGIN
User can define this as any \c ParseFlag combinations.
*/
#ifndef RAPIDJSON_PARSE_DEFAULT_FLAGS
#define RAPIDJSON_PARSE_DEFAULT_FLAGS kParseCommentsFlag | kParseTrailingCommasFlag
#define RAPIDJSON_PARSE_DEFAULT_FLAGS kParseNoFlags
#endif
//! Combination of parseFlags
@ -299,16 +299,9 @@ inline const char *SkipWhitespace_SIMD(const char* p) {
for (;; p += 16) {
const __m128i s = _mm_load_si128(reinterpret_cast<const __m128i *>(p));
const int r = _mm_cvtsi128_si32(_mm_cmpistrm(w, s, _SIDD_UBYTE_OPS | _SIDD_CMP_EQUAL_ANY | _SIDD_BIT_MASK | _SIDD_NEGATIVE_POLARITY));
if (r != 0) { // some of characters is non-whitespace
#ifdef _MSC_VER // Find the index of first non-whitespace
unsigned long offset;
_BitScanForward(&offset, r);
return p + offset;
#else
return p + __builtin_ffs(r) - 1;
#endif
}
const int r = _mm_cmpistri(w, s, _SIDD_UBYTE_OPS | _SIDD_CMP_EQUAL_ANY | _SIDD_LEAST_SIGNIFICANT | _SIDD_NEGATIVE_POLARITY);
if (r != 16) // some of characters is non-whitespace
return p + r;
}
}
@ -325,16 +318,9 @@ inline const char *SkipWhitespace_SIMD(const char* p, const char* end) {
for (; p <= end - 16; p += 16) {
const __m128i s = _mm_loadu_si128(reinterpret_cast<const __m128i *>(p));
const int r = _mm_cvtsi128_si32(_mm_cmpistrm(w, s, _SIDD_UBYTE_OPS | _SIDD_CMP_EQUAL_ANY | _SIDD_BIT_MASK | _SIDD_NEGATIVE_POLARITY));
if (r != 0) { // some of characters is non-whitespace
#ifdef _MSC_VER // Find the index of first non-whitespace
unsigned long offset;
_BitScanForward(&offset, r);
return p + offset;
#else
return p + __builtin_ffs(r) - 1;
#endif
}
const int r = _mm_cmpistri(w, s, _SIDD_UBYTE_OPS | _SIDD_CMP_EQUAL_ANY | _SIDD_LEAST_SIGNIFICANT | _SIDD_NEGATIVE_POLARITY);
if (r != 16) // some of characters is non-whitespace
return p + r;
}
return SkipWhitespace(p, end);
@ -425,7 +411,92 @@ inline const char *SkipWhitespace_SIMD(const char* p, const char* end) {
return SkipWhitespace(p, end);
}
#endif // RAPIDJSON_SSE2
#elif defined(RAPIDJSON_NEON)
//! Skip whitespace with ARM Neon instructions, testing 16 8-byte characters at once.
inline const char *SkipWhitespace_SIMD(const char* p) {
// Fast return for single non-whitespace
if (*p == ' ' || *p == '\n' || *p == '\r' || *p == '\t')
++p;
else
return p;
// 16-byte align to the next boundary
const char* nextAligned = reinterpret_cast<const char*>((reinterpret_cast<size_t>(p) + 15) & static_cast<size_t>(~15));
while (p != nextAligned)
if (*p == ' ' || *p == '\n' || *p == '\r' || *p == '\t')
++p;
else
return p;
const uint8x16_t w0 = vmovq_n_u8(' ');
const uint8x16_t w1 = vmovq_n_u8('\n');
const uint8x16_t w2 = vmovq_n_u8('\r');
const uint8x16_t w3 = vmovq_n_u8('\t');
for (;; p += 16) {
const uint8x16_t s = vld1q_u8(reinterpret_cast<const uint8_t *>(p));
uint8x16_t x = vceqq_u8(s, w0);
x = vorrq_u8(x, vceqq_u8(s, w1));
x = vorrq_u8(x, vceqq_u8(s, w2));
x = vorrq_u8(x, vceqq_u8(s, w3));
x = vmvnq_u8(x); // Negate
x = vrev64q_u8(x); // Rev in 64
uint64_t low = vgetq_lane_u64(reinterpret_cast<uint64x2_t>(x), 0); // extract
uint64_t high = vgetq_lane_u64(reinterpret_cast<uint64x2_t>(x), 1); // extract
if (low == 0) {
if (high != 0) {
int lz =__builtin_clzll(high);;
return p + 8 + (lz >> 3);
}
} else {
int lz = __builtin_clzll(low);;
return p + (lz >> 3);
}
}
}
inline const char *SkipWhitespace_SIMD(const char* p, const char* end) {
// Fast return for single non-whitespace
if (p != end && (*p == ' ' || *p == '\n' || *p == '\r' || *p == '\t'))
++p;
else
return p;
const uint8x16_t w0 = vmovq_n_u8(' ');
const uint8x16_t w1 = vmovq_n_u8('\n');
const uint8x16_t w2 = vmovq_n_u8('\r');
const uint8x16_t w3 = vmovq_n_u8('\t');
for (; p <= end - 16; p += 16) {
const uint8x16_t s = vld1q_u8(reinterpret_cast<const uint8_t *>(p));
uint8x16_t x = vceqq_u8(s, w0);
x = vorrq_u8(x, vceqq_u8(s, w1));
x = vorrq_u8(x, vceqq_u8(s, w2));
x = vorrq_u8(x, vceqq_u8(s, w3));
x = vmvnq_u8(x); // Negate
x = vrev64q_u8(x); // Rev in 64
uint64_t low = vgetq_lane_u64(reinterpret_cast<uint64x2_t>(x), 0); // extract
uint64_t high = vgetq_lane_u64(reinterpret_cast<uint64x2_t>(x), 1); // extract
if (low == 0) {
if (high != 0) {
int lz = __builtin_clzll(high);
return p + 8 + (lz >> 3);
}
} else {
int lz = __builtin_clzll(low);
return p + (lz >> 3);
}
}
return SkipWhitespace(p, end);
}
#endif // RAPIDJSON_NEON
#ifdef RAPIDJSON_SIMD
//! Template function specialization for InsituStringStream
@ -471,7 +542,8 @@ public:
/*! \param stackAllocator Optional allocator for allocating stack memory. (Only use for non-destructive parsing)
\param stackCapacity stack capacity in bytes for storing a single decoded string. (Only use for non-destructive parsing)
*/
GenericReader(StackAllocator* stackAllocator = 0, size_t stackCapacity = kDefaultStackCapacity) : stack_(stackAllocator, stackCapacity), parseResult_() {}
GenericReader(StackAllocator* stackAllocator = 0, size_t stackCapacity = kDefaultStackCapacity) :
stack_(stackAllocator, stackCapacity), parseResult_(), state_(IterativeParsingStartState) {}
//! Parse JSON text.
/*! \tparam parseFlags Combination of \ref ParseFlag.
@ -527,7 +599,84 @@ public:
return Parse<kParseDefaultFlags>(is, handler);
}
//! Whether a parse error has occured in the last parsing.
//! Initialize JSON text token-by-token parsing
/*!
*/
void IterativeParseInit() {
parseResult_.Clear();
state_ = IterativeParsingStartState;
}
//! Parse one token from JSON text
/*! \tparam InputStream Type of input stream, implementing Stream concept
\tparam Handler Type of handler, implementing Handler concept.
\param is Input stream to be parsed.
\param handler The handler to receive events.
\return Whether the parsing is successful.
*/
template <unsigned parseFlags, typename InputStream, typename Handler>
bool IterativeParseNext(InputStream& is, Handler& handler) {
while (RAPIDJSON_LIKELY(is.Peek() != '\0')) {
SkipWhitespaceAndComments<parseFlags>(is);
Token t = Tokenize(is.Peek());
IterativeParsingState n = Predict(state_, t);
IterativeParsingState d = Transit<parseFlags>(state_, t, n, is, handler);
// If we've finished or hit an error...
if (RAPIDJSON_UNLIKELY(IsIterativeParsingCompleteState(d))) {
// Report errors.
if (d == IterativeParsingErrorState) {
HandleError(state_, is);
return false;
}
// Transition to the finish state.
RAPIDJSON_ASSERT(d == IterativeParsingFinishState);
state_ = d;
// If StopWhenDone is not set...
if (!(parseFlags & kParseStopWhenDoneFlag)) {
// ... and extra non-whitespace data is found...
SkipWhitespaceAndComments<parseFlags>(is);
if (is.Peek() != '\0') {
// ... this is considered an error.
HandleError(state_, is);
return false;
}
}
// Success! We are done!
return true;
}
// Transition to the new state.
state_ = d;
// If we parsed anything other than a delimiter, we invoked the handler, so we can return true now.
if (!IsIterativeParsingDelimiterState(n))
return true;
}
// We reached the end of file.
stack_.Clear();
if (state_ != IterativeParsingFinishState) {
HandleError(state_, is);
return false;
}
return true;
}
//! Check if token-by-token parsing JSON text is complete
/*! \return Whether the JSON has been fully decoded.
*/
RAPIDJSON_FORCEINLINE bool IterativeParseComplete() const {
return IsIterativeParsingCompleteState(state_);
}
//! Whether a parse error has occurred in the last parsing.
bool HasParseError() const { return parseResult_.IsError(); }
//! Get the \ref ParseErrorCode of last parsing.
@ -575,7 +724,7 @@ private:
}
}
else if (RAPIDJSON_LIKELY(Consume(is, '/')))
while (is.Peek() != '\0' && is.Take() != '\n');
while (is.Peek() != '\0' && is.Take() != '\n') {}
else
RAPIDJSON_PARSE_ERROR(kParseErrorUnspecificSyntaxError, is.Tell());
@ -750,7 +899,7 @@ private:
return false;
}
// Helper function to parse four hexidecimal digits in \uXXXX in ParseString().
// Helper function to parse four hexadecimal digits in \uXXXX in ParseString().
template<typename InputStream>
unsigned ParseHex4(InputStream& is, size_t escapeOffset) {
unsigned codepoint = 0;
@ -857,7 +1006,7 @@ private:
Ch c = is.Peek();
if (RAPIDJSON_UNLIKELY(c == '\\')) { // Escape
size_t escapeOffset = is.Tell(); // For invalid escaping, report the inital '\\' as error offset
size_t escapeOffset = is.Tell(); // For invalid escaping, report the initial '\\' as error offset
is.Take();
Ch e = is.Peek();
if ((sizeof(Ch) == 1 || unsigned(e) < 256) && RAPIDJSON_LIKELY(escape[static_cast<unsigned char>(e)])) {
@ -892,7 +1041,7 @@ private:
if (c == '\0')
RAPIDJSON_PARSE_ERROR(kParseErrorStringMissQuotationMark, is.Tell());
else
RAPIDJSON_PARSE_ERROR(kParseErrorStringEscapeInvalid, is.Tell());
RAPIDJSON_PARSE_ERROR(kParseErrorStringInvalidEncoding, is.Tell());
}
else {
size_t offset = is.Tell();
@ -927,7 +1076,7 @@ private:
// The rest of string using SIMD
static const char dquote[16] = { '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"' };
static const char bslash[16] = { '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\' };
static const char space[16] = { 0x19, 0x19, 0x19, 0x19, 0x19, 0x19, 0x19, 0x19, 0x19, 0x19, 0x19, 0x19, 0x19, 0x19, 0x19, 0x19 };
static const char space[16] = { 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F };
const __m128i dq = _mm_loadu_si128(reinterpret_cast<const __m128i *>(&dquote[0]));
const __m128i bs = _mm_loadu_si128(reinterpret_cast<const __m128i *>(&bslash[0]));
const __m128i sp = _mm_loadu_si128(reinterpret_cast<const __m128i *>(&space[0]));
@ -936,7 +1085,7 @@ private:
const __m128i s = _mm_load_si128(reinterpret_cast<const __m128i *>(p));
const __m128i t1 = _mm_cmpeq_epi8(s, dq);
const __m128i t2 = _mm_cmpeq_epi8(s, bs);
const __m128i t3 = _mm_cmpeq_epi8(_mm_max_epu8(s, sp), sp); // s < 0x20 <=> max(s, 0x19) == 0x19
const __m128i t3 = _mm_cmpeq_epi8(_mm_max_epu8(s, sp), sp); // s < 0x20 <=> max(s, 0x1F) == 0x1F
const __m128i x = _mm_or_si128(_mm_or_si128(t1, t2), t3);
unsigned short r = static_cast<unsigned short>(_mm_movemask_epi8(x));
if (RAPIDJSON_UNLIKELY(r != 0)) { // some of characters is escaped
@ -948,11 +1097,13 @@ private:
#else
length = static_cast<SizeType>(__builtin_ffs(r) - 1);
#endif
char* q = reinterpret_cast<char*>(os.Push(length));
for (size_t i = 0; i < length; i++)
q[i] = p[i];
if (length != 0) {
char* q = reinterpret_cast<char*>(os.Push(length));
for (size_t i = 0; i < length; i++)
q[i] = p[i];
p += length;
p += length;
}
break;
}
_mm_storeu_si128(reinterpret_cast<__m128i *>(os.Push(16)), s);
@ -988,7 +1139,7 @@ private:
// The rest of string using SIMD
static const char dquote[16] = { '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"' };
static const char bslash[16] = { '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\' };
static const char space[16] = { 0x19, 0x19, 0x19, 0x19, 0x19, 0x19, 0x19, 0x19, 0x19, 0x19, 0x19, 0x19, 0x19, 0x19, 0x19, 0x19 };
static const char space[16] = { 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F };
const __m128i dq = _mm_loadu_si128(reinterpret_cast<const __m128i *>(&dquote[0]));
const __m128i bs = _mm_loadu_si128(reinterpret_cast<const __m128i *>(&bslash[0]));
const __m128i sp = _mm_loadu_si128(reinterpret_cast<const __m128i *>(&space[0]));
@ -997,7 +1148,7 @@ private:
const __m128i s = _mm_load_si128(reinterpret_cast<const __m128i *>(p));
const __m128i t1 = _mm_cmpeq_epi8(s, dq);
const __m128i t2 = _mm_cmpeq_epi8(s, bs);
const __m128i t3 = _mm_cmpeq_epi8(_mm_max_epu8(s, sp), sp); // s < 0x20 <=> max(s, 0x19) == 0x19
const __m128i t3 = _mm_cmpeq_epi8(_mm_max_epu8(s, sp), sp); // s < 0x20 <=> max(s, 0x1F) == 0x1F
const __m128i x = _mm_or_si128(_mm_or_si128(t1, t2), t3);
unsigned short r = static_cast<unsigned short>(_mm_movemask_epi8(x));
if (RAPIDJSON_UNLIKELY(r != 0)) { // some of characters is escaped
@ -1036,7 +1187,7 @@ private:
// The rest of string using SIMD
static const char dquote[16] = { '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"' };
static const char bslash[16] = { '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\' };
static const char space[16] = { 0x19, 0x19, 0x19, 0x19, 0x19, 0x19, 0x19, 0x19, 0x19, 0x19, 0x19, 0x19, 0x19, 0x19, 0x19, 0x19 };
static const char space[16] = { 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F };
const __m128i dq = _mm_loadu_si128(reinterpret_cast<const __m128i *>(&dquote[0]));
const __m128i bs = _mm_loadu_si128(reinterpret_cast<const __m128i *>(&bslash[0]));
const __m128i sp = _mm_loadu_si128(reinterpret_cast<const __m128i *>(&space[0]));
@ -1045,7 +1196,7 @@ private:
const __m128i s = _mm_load_si128(reinterpret_cast<const __m128i *>(p));
const __m128i t1 = _mm_cmpeq_epi8(s, dq);
const __m128i t2 = _mm_cmpeq_epi8(s, bs);
const __m128i t3 = _mm_cmpeq_epi8(_mm_max_epu8(s, sp), sp); // s < 0x20 <=> max(s, 0x19) == 0x19
const __m128i t3 = _mm_cmpeq_epi8(_mm_max_epu8(s, sp), sp); // s < 0x20 <=> max(s, 0x1F) == 0x1F
const __m128i x = _mm_or_si128(_mm_or_si128(t1, t2), t3);
unsigned short r = static_cast<unsigned short>(_mm_movemask_epi8(x));
if (RAPIDJSON_UNLIKELY(r != 0)) { // some of characters is escaped
@ -1064,7 +1215,180 @@ private:
is.src_ = is.dst_ = p;
}
#endif
#elif defined(RAPIDJSON_NEON)
// StringStream -> StackStream<char>
static RAPIDJSON_FORCEINLINE void ScanCopyUnescapedString(StringStream& is, StackStream<char>& os) {
const char* p = is.src_;
// Scan one by one until alignment (unaligned load may cross page boundary and cause crash)
const char* nextAligned = reinterpret_cast<const char*>((reinterpret_cast<size_t>(p) + 15) & static_cast<size_t>(~15));
while (p != nextAligned)
if (RAPIDJSON_UNLIKELY(*p == '\"') || RAPIDJSON_UNLIKELY(*p == '\\') || RAPIDJSON_UNLIKELY(static_cast<unsigned>(*p) < 0x20)) {
is.src_ = p;
return;
}
else
os.Put(*p++);
// The rest of string using SIMD
const uint8x16_t s0 = vmovq_n_u8('"');
const uint8x16_t s1 = vmovq_n_u8('\\');
const uint8x16_t s2 = vmovq_n_u8('\b');
const uint8x16_t s3 = vmovq_n_u8(32);
for (;; p += 16) {
const uint8x16_t s = vld1q_u8(reinterpret_cast<const uint8_t *>(p));
uint8x16_t x = vceqq_u8(s, s0);
x = vorrq_u8(x, vceqq_u8(s, s1));
x = vorrq_u8(x, vceqq_u8(s, s2));
x = vorrq_u8(x, vcltq_u8(s, s3));
x = vrev64q_u8(x); // Rev in 64
uint64_t low = vgetq_lane_u64(reinterpret_cast<uint64x2_t>(x), 0); // extract
uint64_t high = vgetq_lane_u64(reinterpret_cast<uint64x2_t>(x), 1); // extract
SizeType length = 0;
bool escaped = false;
if (low == 0) {
if (high != 0) {
unsigned lz = (unsigned)__builtin_clzll(high);;
length = 8 + (lz >> 3);
escaped = true;
}
} else {
unsigned lz = (unsigned)__builtin_clzll(low);;
length = lz >> 3;
escaped = true;
}
if (RAPIDJSON_UNLIKELY(escaped)) { // some of characters is escaped
if (length != 0) {
char* q = reinterpret_cast<char*>(os.Push(length));
for (size_t i = 0; i < length; i++)
q[i] = p[i];
p += length;
}
break;
}
vst1q_u8(reinterpret_cast<uint8_t *>(os.Push(16)), s);
}
is.src_ = p;
}
// InsituStringStream -> InsituStringStream
static RAPIDJSON_FORCEINLINE void ScanCopyUnescapedString(InsituStringStream& is, InsituStringStream& os) {
RAPIDJSON_ASSERT(&is == &os);
(void)os;
if (is.src_ == is.dst_) {
SkipUnescapedString(is);
return;
}
char* p = is.src_;
char *q = is.dst_;
// Scan one by one until alignment (unaligned load may cross page boundary and cause crash)
const char* nextAligned = reinterpret_cast<const char*>((reinterpret_cast<size_t>(p) + 15) & static_cast<size_t>(~15));
while (p != nextAligned)
if (RAPIDJSON_UNLIKELY(*p == '\"') || RAPIDJSON_UNLIKELY(*p == '\\') || RAPIDJSON_UNLIKELY(static_cast<unsigned>(*p) < 0x20)) {
is.src_ = p;
is.dst_ = q;
return;
}
else
*q++ = *p++;
// The rest of string using SIMD
const uint8x16_t s0 = vmovq_n_u8('"');
const uint8x16_t s1 = vmovq_n_u8('\\');
const uint8x16_t s2 = vmovq_n_u8('\b');
const uint8x16_t s3 = vmovq_n_u8(32);
for (;; p += 16, q += 16) {
const uint8x16_t s = vld1q_u8(reinterpret_cast<uint8_t *>(p));
uint8x16_t x = vceqq_u8(s, s0);
x = vorrq_u8(x, vceqq_u8(s, s1));
x = vorrq_u8(x, vceqq_u8(s, s2));
x = vorrq_u8(x, vcltq_u8(s, s3));
x = vrev64q_u8(x); // Rev in 64
uint64_t low = vgetq_lane_u64(reinterpret_cast<uint64x2_t>(x), 0); // extract
uint64_t high = vgetq_lane_u64(reinterpret_cast<uint64x2_t>(x), 1); // extract
SizeType length = 0;
bool escaped = false;
if (low == 0) {
if (high != 0) {
unsigned lz = (unsigned)__builtin_clzll(high);
length = 8 + (lz >> 3);
escaped = true;
}
} else {
unsigned lz = (unsigned)__builtin_clzll(low);
length = lz >> 3;
escaped = true;
}
if (RAPIDJSON_UNLIKELY(escaped)) { // some of characters is escaped
for (const char* pend = p + length; p != pend; ) {
*q++ = *p++;
}
break;
}
vst1q_u8(reinterpret_cast<uint8_t *>(q), s);
}
is.src_ = p;
is.dst_ = q;
}
// When read/write pointers are the same for insitu stream, just skip unescaped characters
static RAPIDJSON_FORCEINLINE void SkipUnescapedString(InsituStringStream& is) {
RAPIDJSON_ASSERT(is.src_ == is.dst_);
char* p = is.src_;
// Scan one by one until alignment (unaligned load may cross page boundary and cause crash)
const char* nextAligned = reinterpret_cast<const char*>((reinterpret_cast<size_t>(p) + 15) & static_cast<size_t>(~15));
for (; p != nextAligned; p++)
if (RAPIDJSON_UNLIKELY(*p == '\"') || RAPIDJSON_UNLIKELY(*p == '\\') || RAPIDJSON_UNLIKELY(static_cast<unsigned>(*p) < 0x20)) {
is.src_ = is.dst_ = p;
return;
}
// The rest of string using SIMD
const uint8x16_t s0 = vmovq_n_u8('"');
const uint8x16_t s1 = vmovq_n_u8('\\');
const uint8x16_t s2 = vmovq_n_u8('\b');
const uint8x16_t s3 = vmovq_n_u8(32);
for (;; p += 16) {
const uint8x16_t s = vld1q_u8(reinterpret_cast<uint8_t *>(p));
uint8x16_t x = vceqq_u8(s, s0);
x = vorrq_u8(x, vceqq_u8(s, s1));
x = vorrq_u8(x, vceqq_u8(s, s2));
x = vorrq_u8(x, vcltq_u8(s, s3));
x = vrev64q_u8(x); // Rev in 64
uint64_t low = vgetq_lane_u64(reinterpret_cast<uint64x2_t>(x), 0); // extract
uint64_t high = vgetq_lane_u64(reinterpret_cast<uint64x2_t>(x), 1); // extract
if (low == 0) {
if (high != 0) {
int lz = __builtin_clzll(high);
p += 8 + (lz >> 3);
break;
}
} else {
int lz = __builtin_clzll(low);
p += lz >> 3;
break;
}
}
is.src_ = is.dst_ = p;
}
#endif // RAPIDJSON_NEON
template<typename InputStream, bool backup, bool pushOnTake>
class NumberStream;
@ -1075,7 +1399,6 @@ private:
typedef typename InputStream::Ch Ch;
NumberStream(GenericReader& reader, InputStream& s) : is(s) { (void)reader; }
~NumberStream() {}
RAPIDJSON_FORCEINLINE Ch Peek() const { return is.Peek(); }
RAPIDJSON_FORCEINLINE Ch TakePush() { return is.Take(); }
@ -1097,7 +1420,6 @@ private:
typedef NumberStream<InputStream, false, false> Base;
public:
NumberStream(GenericReader& reader, InputStream& is) : Base(reader, is), stackStream(reader.stack_) {}
~NumberStream() {}
RAPIDJSON_FORCEINLINE Ch TakePush() {
stackStream.Put(static_cast<char>(Base::is.Peek()));
@ -1124,7 +1446,6 @@ private:
typedef NumberStream<InputStream, true, false> Base;
public:
NumberStream(GenericReader& reader, InputStream& is) : Base(reader, is) {}
~NumberStream() {}
RAPIDJSON_FORCEINLINE Ch Take() { return Base::TakePush(); }
};
@ -1185,18 +1506,27 @@ private:
}
// Parse NaN or Infinity here
else if ((parseFlags & kParseNanAndInfFlag) && RAPIDJSON_LIKELY((s.Peek() == 'I' || s.Peek() == 'N'))) {
useNanOrInf = true;
if (RAPIDJSON_LIKELY(Consume(s, 'N') && Consume(s, 'a') && Consume(s, 'N'))) {
d = std::numeric_limits<double>::quiet_NaN();
if (Consume(s, 'N')) {
if (Consume(s, 'a') && Consume(s, 'N')) {
d = std::numeric_limits<double>::quiet_NaN();
useNanOrInf = true;
}
}
else if (RAPIDJSON_LIKELY(Consume(s, 'I') && Consume(s, 'n') && Consume(s, 'f'))) {
d = (minus ? -std::numeric_limits<double>::infinity() : std::numeric_limits<double>::infinity());
if (RAPIDJSON_UNLIKELY(s.Peek() == 'i' && !(Consume(s, 'i') && Consume(s, 'n')
&& Consume(s, 'i') && Consume(s, 't') && Consume(s, 'y'))))
RAPIDJSON_PARSE_ERROR(kParseErrorValueInvalid, s.Tell());
else if (RAPIDJSON_LIKELY(Consume(s, 'I'))) {
if (Consume(s, 'n') && Consume(s, 'f')) {
d = (minus ? -std::numeric_limits<double>::infinity() : std::numeric_limits<double>::infinity());
useNanOrInf = true;
if (RAPIDJSON_UNLIKELY(s.Peek() == 'i' && !(Consume(s, 'i') && Consume(s, 'n')
&& Consume(s, 'i') && Consume(s, 't') && Consume(s, 'y')))) {
RAPIDJSON_PARSE_ERROR(kParseErrorValueInvalid, s.Tell());
}
}
}
else
if (RAPIDJSON_UNLIKELY(!useNanOrInf)) {
RAPIDJSON_PARSE_ERROR(kParseErrorValueInvalid, s.Tell());
}
}
else
RAPIDJSON_PARSE_ERROR(kParseErrorValueInvalid, s.Tell());
@ -1231,8 +1561,6 @@ private:
// Force double for big integer
if (useDouble) {
while (RAPIDJSON_LIKELY(s.Peek() >= '0' && s.Peek() <= '9')) {
if (RAPIDJSON_UNLIKELY(d >= 1.7976931348623157e307)) // DBL_MAX / 10.0
RAPIDJSON_PARSE_ERROR(kParseErrorNumberTooBig, startOffset);
d = d * 10 + (s.TakePush() - '0');
}
}
@ -1302,9 +1630,18 @@ private:
if (RAPIDJSON_LIKELY(s.Peek() >= '0' && s.Peek() <= '9')) {
exp = static_cast<int>(s.Take() - '0');
if (expMinus) {
// (exp + expFrac) must not underflow int => we're detecting when -exp gets
// dangerously close to INT_MIN (a pessimistic next digit 9 would push it into
// underflow territory):
//
// -(exp * 10 + 9) + expFrac >= INT_MIN
// <=> exp <= (expFrac - INT_MIN - 9) / 10
RAPIDJSON_ASSERT(expFrac <= 0);
int maxExp = (expFrac + 2147483639) / 10;
while (RAPIDJSON_LIKELY(s.Peek() >= '0' && s.Peek() <= '9')) {
exp = exp * 10 + static_cast<int>(s.Take() - '0');
if (exp >= 214748364) { // Issue #313: prevent overflow exponent
if (RAPIDJSON_UNLIKELY(exp > maxExp)) {
while (RAPIDJSON_UNLIKELY(s.Peek() >= '0' && s.Peek() <= '9')) // Consume the rest of exponent
s.Take();
}
@ -1363,6 +1700,13 @@ private:
else
d = internal::StrtodNormalPrecision(d, p);
// Use > max, instead of == inf, to fix bogus warning -Wfloat-equal
if (d > (std::numeric_limits<double>::max)()) {
// Overflow
// TODO: internal::StrtodX should report overflow (or underflow)
RAPIDJSON_PARSE_ERROR(kParseErrorNumberTooBig, startOffset);
}
cont = handler.Double(minus ? -d : d);
}
else if (useNanOrInf) {
@ -1408,29 +1752,31 @@ private:
// States
enum IterativeParsingState {
IterativeParsingStartState = 0,
IterativeParsingFinishState,
IterativeParsingErrorState,
IterativeParsingFinishState = 0, // sink states at top
IterativeParsingErrorState, // sink states at top
IterativeParsingStartState,
// Object states
IterativeParsingObjectInitialState,
IterativeParsingMemberKeyState,
IterativeParsingKeyValueDelimiterState,
IterativeParsingMemberValueState,
IterativeParsingMemberDelimiterState,
IterativeParsingObjectFinishState,
// Array states
IterativeParsingArrayInitialState,
IterativeParsingElementState,
IterativeParsingElementDelimiterState,
IterativeParsingArrayFinishState,
// Single value state
IterativeParsingValueState
};
IterativeParsingValueState,
enum { cIterativeParsingStateCount = IterativeParsingValueState + 1 };
// Delimiter states (at bottom)
IterativeParsingElementDelimiterState,
IterativeParsingMemberDelimiterState,
IterativeParsingKeyValueDelimiterState,
cIterativeParsingStateCount
};
// Tokens
enum Token {
@ -1452,7 +1798,7 @@ private:
kTokenCount
};
RAPIDJSON_FORCEINLINE Token Tokenize(Ch c) {
RAPIDJSON_FORCEINLINE Token Tokenize(Ch c) const {
//!@cond RAPIDJSON_HIDDEN_FROM_DOXYGEN
#define N NumberToken
@ -1479,9 +1825,21 @@ private:
return NumberToken;
}
RAPIDJSON_FORCEINLINE IterativeParsingState Predict(IterativeParsingState state, Token token) {
RAPIDJSON_FORCEINLINE IterativeParsingState Predict(IterativeParsingState state, Token token) const {
// current state x one lookahead token -> new state
static const char G[cIterativeParsingStateCount][kTokenCount] = {
// Finish(sink state)
{
IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState,
IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState,
IterativeParsingErrorState
},
// Error(sink state)
{
IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState,
IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState,
IterativeParsingErrorState
},
// Start
{
IterativeParsingArrayInitialState, // Left bracket
@ -1496,18 +1854,6 @@ private:
IterativeParsingValueState, // Null
IterativeParsingValueState // Number
},
// Finish(sink state)
{
IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState,
IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState,
IterativeParsingErrorState
},
// Error(sink state)
{
IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState,
IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState,
IterativeParsingErrorState
},
// ObjectInitial
{
IterativeParsingErrorState, // Left bracket
@ -1536,20 +1882,6 @@ private:
IterativeParsingErrorState, // Null
IterativeParsingErrorState // Number
},
// KeyValueDelimiter
{
IterativeParsingArrayInitialState, // Left bracket(push MemberValue state)
IterativeParsingErrorState, // Right bracket
IterativeParsingObjectInitialState, // Left curly bracket(push MemberValue state)
IterativeParsingErrorState, // Right curly bracket
IterativeParsingErrorState, // Comma
IterativeParsingErrorState, // Colon
IterativeParsingMemberValueState, // String
IterativeParsingMemberValueState, // False
IterativeParsingMemberValueState, // True
IterativeParsingMemberValueState, // Null
IterativeParsingMemberValueState // Number
},
// MemberValue
{
IterativeParsingErrorState, // Left bracket
@ -1564,20 +1896,6 @@ private:
IterativeParsingErrorState, // Null
IterativeParsingErrorState // Number
},
// MemberDelimiter
{
IterativeParsingErrorState, // Left bracket
IterativeParsingErrorState, // Right bracket
IterativeParsingErrorState, // Left curly bracket
IterativeParsingObjectFinishState, // Right curly bracket
IterativeParsingErrorState, // Comma
IterativeParsingErrorState, // Colon
IterativeParsingMemberKeyState, // String
IterativeParsingErrorState, // False
IterativeParsingErrorState, // True
IterativeParsingErrorState, // Null
IterativeParsingErrorState // Number
},
// ObjectFinish(sink state)
{
IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState,
@ -1612,6 +1930,18 @@ private:
IterativeParsingErrorState, // Null
IterativeParsingErrorState // Number
},
// ArrayFinish(sink state)
{
IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState,
IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState,
IterativeParsingErrorState
},
// Single Value (sink state)
{
IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState,
IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState,
IterativeParsingErrorState
},
// ElementDelimiter
{
IterativeParsingArrayInitialState, // Left bracket(push Element state)
@ -1626,18 +1956,34 @@ private:
IterativeParsingElementState, // Null
IterativeParsingElementState // Number
},
// ArrayFinish(sink state)
// MemberDelimiter
{
IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState,
IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState,
IterativeParsingErrorState
IterativeParsingErrorState, // Left bracket
IterativeParsingErrorState, // Right bracket
IterativeParsingErrorState, // Left curly bracket
IterativeParsingObjectFinishState, // Right curly bracket
IterativeParsingErrorState, // Comma
IterativeParsingErrorState, // Colon
IterativeParsingMemberKeyState, // String
IterativeParsingErrorState, // False
IterativeParsingErrorState, // True
IterativeParsingErrorState, // Null
IterativeParsingErrorState // Number
},
// Single Value (sink state)
// KeyValueDelimiter
{
IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState,
IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState, IterativeParsingErrorState,
IterativeParsingErrorState
}
IterativeParsingArrayInitialState, // Left bracket(push MemberValue state)
IterativeParsingErrorState, // Right bracket
IterativeParsingObjectInitialState, // Left curly bracket(push MemberValue state)
IterativeParsingErrorState, // Right curly bracket
IterativeParsingErrorState, // Comma
IterativeParsingErrorState, // Colon
IterativeParsingMemberValueState, // String
IterativeParsingMemberValueState, // False
IterativeParsingMemberValueState, // True
IterativeParsingMemberValueState, // Null
IterativeParsingMemberValueState // Number
},
}; // End of G
return static_cast<IterativeParsingState>(G[state][token]);
@ -1818,6 +2164,14 @@ private:
}
}
RAPIDJSON_FORCEINLINE bool IsIterativeParsingDelimiterState(IterativeParsingState s) const {
return s >= IterativeParsingElementDelimiterState;
}
RAPIDJSON_FORCEINLINE bool IsIterativeParsingCompleteState(IterativeParsingState s) const {
return s <= IterativeParsingErrorState;
}
template <unsigned parseFlags, typename InputStream, typename Handler>
ParseResult IterativeParse(InputStream& is, Handler& handler) {
parseResult_.Clear();
@ -1856,6 +2210,7 @@ private:
static const size_t kDefaultStackCapacity = 256; //!< Default stack capacity in bytes for storing a single decoded string.
internal::Stack<StackAllocator> stack_; //!< A stack for storing decoded string temporarily during non-destructive parsing.
ParseResult parseResult_;
IterativeParsingState state_;
}; // class GenericReader
//! Reader with UTF8 encoding and default allocator.
@ -1863,7 +2218,7 @@ typedef GenericReader<UTF8<>, UTF8<> > Reader;
RAPIDJSON_NAMESPACE_END
#ifdef __clang__
#if defined(__clang__) || defined(_MSC_VER)
RAPIDJSON_DIAG_POP
#endif
@ -1872,8 +2227,4 @@ RAPIDJSON_DIAG_POP
RAPIDJSON_DIAG_POP
#endif
#ifdef _MSC_VER
RAPIDJSON_DIAG_POP
#endif
#endif // RAPIDJSON_READER_H_

File diff suppressed because it is too large Load diff

View file

@ -1,5 +1,5 @@
// 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
@ -7,9 +7,9 @@
//
// 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
// 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.
#include "rapidjson.h"
@ -100,6 +100,50 @@ inline void PutN(Stream& stream, Ch c, size_t n) {
PutUnsafe(stream, c);
}
///////////////////////////////////////////////////////////////////////////////
// GenericStreamWrapper
//! A Stream Wrapper
/*! \tThis string stream is a wrapper for any stream by just forwarding any
\treceived message to the origin stream.
\note implements Stream concept
*/
#if defined(_MSC_VER) && _MSC_VER <= 1800
RAPIDJSON_DIAG_PUSH
RAPIDJSON_DIAG_OFF(4702) // unreachable code
RAPIDJSON_DIAG_OFF(4512) // assignment operator could not be generated
#endif
template <typename InputStream, typename Encoding = UTF8<> >
class GenericStreamWrapper {
public:
typedef typename Encoding::Ch Ch;
GenericStreamWrapper(InputStream& is): is_(is) {}
Ch Peek() const { return is_.Peek(); }
Ch Take() { return is_.Take(); }
size_t Tell() { return is_.Tell(); }
Ch* PutBegin() { return is_.PutBegin(); }
void Put(Ch ch) { is_.Put(ch); }
void Flush() { is_.Flush(); }
size_t PutEnd(Ch* ch) { return is_.PutEnd(ch); }
// wrapper for MemoryStream
const Ch* Peek4() const { return is_.Peek4(); }
// wrapper for AutoUTFInputStream
UTFType GetType() const { return is_.GetType(); }
bool HasBOM() const { return is_.HasBOM(); }
protected:
InputStream& is_;
};
#if defined(_MSC_VER) && _MSC_VER <= 1800
RAPIDJSON_DIAG_POP
#endif
///////////////////////////////////////////////////////////////////////////////
// StringStream

View file

@ -78,8 +78,12 @@ public:
return stack_.template Bottom<Ch>();
}
//! Get the size of string in bytes in the string buffer.
size_t GetSize() const { return stack_.GetSize(); }
//! Get the length of string in Ch in the string buffer.
size_t GetLength() const { return stack_.GetSize() / sizeof(Ch); }
static const size_t kDefaultCapacity = 256;
mutable internal::Stack<Allocator> stack_;

View file

@ -16,6 +16,7 @@
#define RAPIDJSON_WRITER_H_
#include "stream.h"
#include "internal/meta.h"
#include "internal/stack.h"
#include "internal/strfunc.h"
#include "internal/dtoa.h"
@ -31,17 +32,18 @@
#include <nmmintrin.h>
#elif defined(RAPIDJSON_SSE2)
#include <emmintrin.h>
#endif
#ifdef _MSC_VER
RAPIDJSON_DIAG_PUSH
RAPIDJSON_DIAG_OFF(4127) // conditional expression is constant
#elif defined(RAPIDJSON_NEON)
#include <arm_neon.h>
#endif
#ifdef __clang__
RAPIDJSON_DIAG_PUSH
RAPIDJSON_DIAG_OFF(padded)
RAPIDJSON_DIAG_OFF(unreachable-code)
RAPIDJSON_DIAG_OFF(c++98-compat)
#elif defined(_MSC_VER)
RAPIDJSON_DIAG_PUSH
RAPIDJSON_DIAG_OFF(4127) // conditional expression is constant
#endif
RAPIDJSON_NAMESPACE_BEGIN
@ -103,6 +105,13 @@ public:
Writer(StackAllocator* allocator = 0, size_t levelDepth = kDefaultLevelDepth) :
os_(0), level_stack_(allocator, levelDepth * sizeof(Level)), maxDecimalPlaces_(kDefaultMaxDecimalPlaces), hasRoot_(false) {}
#if RAPIDJSON_HAS_CXX11_RVALUE_REFS
Writer(Writer&& rhs) :
os_(rhs.os_), level_stack_(std::move(rhs.level_stack_)), maxDecimalPlaces_(rhs.maxDecimalPlaces_), hasRoot_(rhs.hasRoot_) {
rhs.os_ = 0;
}
#endif
//! Reset the writer with a new stream.
/*!
This function reset the writer with a new stream and default settings,
@ -184,12 +193,14 @@ public:
bool Double(double d) { Prefix(kNumberType); return EndValue(WriteDouble(d)); }
bool RawNumber(const Ch* str, SizeType length, bool copy = false) {
RAPIDJSON_ASSERT(str != 0);
(void)copy;
Prefix(kNumberType);
return EndValue(WriteString(str, length));
}
bool String(const Ch* str, SizeType length, bool copy = false) {
RAPIDJSON_ASSERT(str != 0);
(void)copy;
Prefix(kStringType);
return EndValue(WriteString(str, length));
@ -209,10 +220,18 @@ public:
bool Key(const Ch* str, SizeType length, bool copy = false) { return String(str, length, copy); }
#if RAPIDJSON_HAS_STDSTRING
bool Key(const std::basic_string<Ch>& str)
{
return Key(str.data(), SizeType(str.size()));
}
#endif
bool EndObject(SizeType memberCount = 0) {
(void)memberCount;
RAPIDJSON_ASSERT(level_stack_.GetSize() >= sizeof(Level));
RAPIDJSON_ASSERT(!level_stack_.template Top<Level>()->inArray);
RAPIDJSON_ASSERT(level_stack_.GetSize() >= sizeof(Level)); // not inside an Object
RAPIDJSON_ASSERT(!level_stack_.template Top<Level>()->inArray); // currently inside an Array, not Object
RAPIDJSON_ASSERT(0 == level_stack_.template Top<Level>()->valueCount % 2); // Object has a Key without a Value
level_stack_.template Pop<Level>(1);
return EndValue(WriteEndObject());
}
@ -236,9 +255,9 @@ public:
//@{
//! Simpler but slower overload.
bool String(const Ch* str) { return String(str, internal::StrLen(str)); }
bool Key(const Ch* str) { return Key(str, internal::StrLen(str)); }
bool String(const Ch* const& str) { return String(str, internal::StrLen(str)); }
bool Key(const Ch* const& str) { return Key(str, internal::StrLen(str)); }
//@}
//! Write a raw JSON value.
@ -249,7 +268,19 @@ public:
\param length Length of the json.
\param type Type of the root of json.
*/
bool RawValue(const Ch* json, size_t length, Type type) { Prefix(type); return EndValue(WriteRawValue(json, length)); }
bool RawValue(const Ch* json, size_t length, Type type) {
RAPIDJSON_ASSERT(json != 0);
Prefix(type);
return EndValue(WriteRawValue(json, length));
}
//! Flush the output stream.
/*!
Allows the user to flush the output stream immediately.
*/
void Flush() {
os_->Flush();
}
protected:
//! Information for each nested level
@ -283,7 +314,7 @@ protected:
const char* end = internal::i32toa(i, buffer);
PutReserve(*os_, static_cast<size_t>(end - buffer));
for (const char* p = buffer; p != end; ++p)
PutUnsafe(*os_, static_cast<typename TargetEncoding::Ch>(*p));
PutUnsafe(*os_, static_cast<typename OutputStream::Ch>(*p));
return true;
}
@ -292,7 +323,7 @@ protected:
const char* end = internal::u32toa(u, buffer);
PutReserve(*os_, static_cast<size_t>(end - buffer));
for (const char* p = buffer; p != end; ++p)
PutUnsafe(*os_, static_cast<typename TargetEncoding::Ch>(*p));
PutUnsafe(*os_, static_cast<typename OutputStream::Ch>(*p));
return true;
}
@ -301,7 +332,7 @@ protected:
const char* end = internal::i64toa(i64, buffer);
PutReserve(*os_, static_cast<size_t>(end - buffer));
for (const char* p = buffer; p != end; ++p)
PutUnsafe(*os_, static_cast<typename TargetEncoding::Ch>(*p));
PutUnsafe(*os_, static_cast<typename OutputStream::Ch>(*p));
return true;
}
@ -310,7 +341,7 @@ protected:
char* end = internal::u64toa(u64, buffer);
PutReserve(*os_, static_cast<size_t>(end - buffer));
for (char* p = buffer; p != end; ++p)
PutUnsafe(*os_, static_cast<typename TargetEncoding::Ch>(*p));
PutUnsafe(*os_, static_cast<typename OutputStream::Ch>(*p));
return true;
}
@ -338,12 +369,12 @@ protected:
char* end = internal::dtoa(d, buffer, maxDecimalPlaces_);
PutReserve(*os_, static_cast<size_t>(end - buffer));
for (char* p = buffer; p != end; ++p)
PutUnsafe(*os_, static_cast<typename TargetEncoding::Ch>(*p));
PutUnsafe(*os_, static_cast<typename OutputStream::Ch>(*p));
return true;
}
bool WriteString(const Ch* str, SizeType length) {
static const typename TargetEncoding::Ch hexDigits[16] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' };
static const typename OutputStream::Ch hexDigits[16] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' };
static const char escape[256] = {
#define Z16 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
//0 1 2 3 4 5 6 7 8 9 A B C D E F
@ -399,7 +430,7 @@ protected:
else if ((sizeof(Ch) == 1 || static_cast<unsigned>(c) < 256) && RAPIDJSON_UNLIKELY(escape[static_cast<unsigned char>(c)])) {
is.Take();
PutUnsafe(*os_, '\\');
PutUnsafe(*os_, static_cast<typename TargetEncoding::Ch>(escape[static_cast<unsigned char>(c)]));
PutUnsafe(*os_, static_cast<typename OutputStream::Ch>(escape[static_cast<unsigned char>(c)]));
if (escape[static_cast<unsigned char>(c)] == 'u') {
PutUnsafe(*os_, '0');
PutUnsafe(*os_, '0');
@ -427,9 +458,13 @@ protected:
bool WriteRawValue(const Ch* json, size_t length) {
PutReserve(*os_, length);
for (size_t i = 0; i < length; i++) {
RAPIDJSON_ASSERT(json[i] != '\0');
PutUnsafe(*os_, json[i]);
GenericStringStream<SourceEncoding> is(json);
while (RAPIDJSON_LIKELY(is.Tell() < length)) {
RAPIDJSON_ASSERT(is.Peek() != '\0');
if (RAPIDJSON_UNLIKELY(!(writeFlags & kWriteValidateEncodingFlag ?
Transcoder<SourceEncoding, TargetEncoding>::Validate(is, *os_) :
Transcoder<SourceEncoding, TargetEncoding>::TranscodeUnsafe(is, *os_))))
return false;
}
return true;
}
@ -457,7 +492,7 @@ protected:
// Flush the value if it is the top level one.
bool EndValue(bool ret) {
if (RAPIDJSON_UNLIKELY(level_stack_.Empty())) // end of json text
os_->Flush();
Flush();
return ret;
}
@ -561,7 +596,7 @@ inline bool Writer<StringBuffer>::ScanWriteUnescapedString(StringStream& is, siz
// The rest of string using SIMD
static const char dquote[16] = { '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"' };
static const char bslash[16] = { '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\' };
static const char space[16] = { 0x19, 0x19, 0x19, 0x19, 0x19, 0x19, 0x19, 0x19, 0x19, 0x19, 0x19, 0x19, 0x19, 0x19, 0x19, 0x19 };
static const char space[16] = { 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F };
const __m128i dq = _mm_loadu_si128(reinterpret_cast<const __m128i *>(&dquote[0]));
const __m128i bs = _mm_loadu_si128(reinterpret_cast<const __m128i *>(&bslash[0]));
const __m128i sp = _mm_loadu_si128(reinterpret_cast<const __m128i *>(&space[0]));
@ -570,7 +605,7 @@ inline bool Writer<StringBuffer>::ScanWriteUnescapedString(StringStream& is, siz
const __m128i s = _mm_load_si128(reinterpret_cast<const __m128i *>(p));
const __m128i t1 = _mm_cmpeq_epi8(s, dq);
const __m128i t2 = _mm_cmpeq_epi8(s, bs);
const __m128i t3 = _mm_cmpeq_epi8(_mm_max_epu8(s, sp), sp); // s < 0x20 <=> max(s, 0x19) == 0x19
const __m128i t3 = _mm_cmpeq_epi8(_mm_max_epu8(s, sp), sp); // s < 0x20 <=> max(s, 0x1F) == 0x1F
const __m128i x = _mm_or_si128(_mm_or_si128(t1, t2), t3);
unsigned short r = static_cast<unsigned short>(_mm_movemask_epi8(x));
if (RAPIDJSON_UNLIKELY(r != 0)) { // some of characters is escaped
@ -595,15 +630,79 @@ inline bool Writer<StringBuffer>::ScanWriteUnescapedString(StringStream& is, siz
is.src_ = p;
return RAPIDJSON_LIKELY(is.Tell() < length);
}
#endif // defined(RAPIDJSON_SSE2) || defined(RAPIDJSON_SSE42)
#elif defined(RAPIDJSON_NEON)
template<>
inline bool Writer<StringBuffer>::ScanWriteUnescapedString(StringStream& is, size_t length) {
if (length < 16)
return RAPIDJSON_LIKELY(is.Tell() < length);
if (!RAPIDJSON_LIKELY(is.Tell() < length))
return false;
const char* p = is.src_;
const char* end = is.head_ + length;
const char* nextAligned = reinterpret_cast<const char*>((reinterpret_cast<size_t>(p) + 15) & static_cast<size_t>(~15));
const char* endAligned = reinterpret_cast<const char*>(reinterpret_cast<size_t>(end) & static_cast<size_t>(~15));
if (nextAligned > end)
return true;
while (p != nextAligned)
if (*p < 0x20 || *p == '\"' || *p == '\\') {
is.src_ = p;
return RAPIDJSON_LIKELY(is.Tell() < length);
}
else
os_->PutUnsafe(*p++);
// The rest of string using SIMD
const uint8x16_t s0 = vmovq_n_u8('"');
const uint8x16_t s1 = vmovq_n_u8('\\');
const uint8x16_t s2 = vmovq_n_u8('\b');
const uint8x16_t s3 = vmovq_n_u8(32);
for (; p != endAligned; p += 16) {
const uint8x16_t s = vld1q_u8(reinterpret_cast<const uint8_t *>(p));
uint8x16_t x = vceqq_u8(s, s0);
x = vorrq_u8(x, vceqq_u8(s, s1));
x = vorrq_u8(x, vceqq_u8(s, s2));
x = vorrq_u8(x, vcltq_u8(s, s3));
x = vrev64q_u8(x); // Rev in 64
uint64_t low = vgetq_lane_u64(reinterpret_cast<uint64x2_t>(x), 0); // extract
uint64_t high = vgetq_lane_u64(reinterpret_cast<uint64x2_t>(x), 1); // extract
SizeType len = 0;
bool escaped = false;
if (low == 0) {
if (high != 0) {
unsigned lz = (unsigned)__builtin_clzll(high);
len = 8 + (lz >> 3);
escaped = true;
}
} else {
unsigned lz = (unsigned)__builtin_clzll(low);
len = lz >> 3;
escaped = true;
}
if (RAPIDJSON_UNLIKELY(escaped)) { // some of characters is escaped
char* q = reinterpret_cast<char*>(os_->PushUnsafe(len));
for (size_t i = 0; i < len; i++)
q[i] = p[i];
p += len;
break;
}
vst1q_u8(reinterpret_cast<uint8_t *>(os_->PushUnsafe(16)), s);
}
is.src_ = p;
return RAPIDJSON_LIKELY(is.Tell() < length);
}
#endif // RAPIDJSON_NEON
RAPIDJSON_NAMESPACE_END
#ifdef _MSC_VER
RAPIDJSON_DIAG_POP
#endif
#ifdef __clang__
#if defined(_MSC_VER) || defined(__clang__)
RAPIDJSON_DIAG_POP
#endif