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Diffstat (limited to 'src/common/rapidjson/document.h')
| -rw-r--r-- | src/common/rapidjson/document.h | 1863 |
1 files changed, 1863 insertions, 0 deletions
diff --git a/src/common/rapidjson/document.h b/src/common/rapidjson/document.h new file mode 100644 index 000000000..ea161ceed --- /dev/null +++ b/src/common/rapidjson/document.h @@ -0,0 +1,1863 @@ +// Copyright (C) 2011 Milo Yip
+//
+// 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.
+
+#ifndef RAPIDJSON_DOCUMENT_H_
+#define RAPIDJSON_DOCUMENT_H_
+
+/*! \file document.h */
+
+#include "reader.h"
+#include "internal/meta.h"
+#include "internal/strfunc.h"
+#include "memorystream.h"
+#include "encodedstream.h"
+#include <new> // placement new
+
+#ifdef _MSC_VER
+RAPIDJSON_DIAG_PUSH
+RAPIDJSON_DIAG_OFF(4127) // conditional expression is constant
+#elif defined(__GNUC__)
+RAPIDJSON_DIAG_PUSH
+RAPIDJSON_DIAG_OFF(effc++)
+#endif
+
+///////////////////////////////////////////////////////////////////////////////
+// RAPIDJSON_HAS_STDSTRING
+
+#ifndef RAPIDJSON_HAS_STDSTRING
+#ifdef RAPIDJSON_DOXYGEN_RUNNING
+#define RAPIDJSON_HAS_STDSTRING 1 // force generation of documentation
+#else
+#define RAPIDJSON_HAS_STDSTRING 0 // no std::string support by default
+#endif
+/*! \def RAPIDJSON_HAS_STDSTRING
+ \ingroup RAPIDJSON_CONFIG
+ \brief Enable RapidJSON support for \c std::string
+
+ By defining this preprocessor symbol to \c 1, several convenience functions for using
+ \ref rapidjson::GenericValue with \c std::string are enabled, especially
+ for construction and comparison.
+
+ \hideinitializer
+*/
+#include <string>
+#endif // RAPIDJSON_HAS_STDSTRING
+
+#ifndef RAPIDJSON_NOMEMBERITERATORCLASS
+#include <iterator> // std::iterator, std::random_access_iterator_tag
+#endif
+
+namespace rapidjson {
+
+// Forward declaration.
+template <typename Encoding, typename Allocator>
+class GenericValue;
+
+//! Name-value pair in a JSON object value.
+/*!
+ This class was internal to GenericValue. It used to be a inner struct.
+ But a compiler (IBM XL C/C++ for AIX) have reported to have problem with that so it moved as a namespace scope struct.
+ https://code.google.com/p/rapidjson/issues/detail?id=64
+*/
+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.
+};
+
+///////////////////////////////////////////////////////////////////////////////
+// GenericMemberIterator
+
+#ifndef RAPIDJSON_NOMEMBERITERATORCLASS
+
+//! (Constant) member iterator for a JSON object value
+/*!
+ \tparam Const Is this a constant iterator?
+ \tparam Encoding Encoding of the value. (Even non-string values need to have the same encoding in a document)
+ \tparam Allocator Allocator type for allocating memory of object, array and string.
+
+ This class implements a Random Access Iterator for GenericMember elements
+ of a GenericValue, see ISO/IEC 14882:2003(E) C++ standard, 24.1 [lib.iterator.requirements].
+
+ \note This iterator implementation is mainly intended to avoid implicit
+ conversions from iterator values to \c NULL,
+ e.g. from GenericValue::FindMember.
+
+ \note Define \c RAPIDJSON_NOMEMBERITERATORCLASS to fall back to a
+ pointer-based implementation, if your platform doesn't provide
+ the C++ <iterator> header.
+
+ \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> {
+
+ 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
+ typedef GenericMemberIterator Iterator;
+ //! Constant iterator type
+ typedef GenericMemberIterator<true,Encoding,Allocator> ConstIterator;
+ //! Non-constant iterator type
+ typedef GenericMemberIterator<false,Encoding,Allocator> NonConstIterator;
+
+ //! Pointer to (const) GenericMember
+ typedef typename BaseType::pointer Pointer;
+ //! Reference to (const) GenericMember
+ typedef typename BaseType::reference Reference;
+ //! Signed integer type (e.g. \c ptrdiff_t)
+ typedef typename BaseType::difference_type DifferenceType;
+
+ //! Default constructor (singular value)
+ /*! Creates an iterator pointing to no element.
+ \note All operations, except for comparisons, are undefined on such values.
+ */
+ GenericMemberIterator() : ptr_() {}
+
+ //! Iterator conversions to more const
+ /*!
+ \param it (Non-const) iterator to copy from
+
+ Allows the creation of an iterator from another GenericMemberIterator
+ that is "less const". Especially, creating a non-constant iterator
+ from a constant iterator are disabled:
+ \li const -> non-const (not ok)
+ \li const -> const (ok)
+ \li non-const -> const (ok)
+ \li non-const -> non-const (ok)
+
+ \note If the \c Const template parameter is already \c false, this
+ constructor effectively defines a regular copy-constructor.
+ Otherwise, the copy constructor is implicitly defined.
+ */
+ GenericMemberIterator(const NonConstIterator & it) : ptr_(it.ptr_) {}
+
+ //! @name stepping
+ //@{
+ Iterator& operator++(){ ++ptr_; return *this; }
+ Iterator& operator--(){ --ptr_; return *this; }
+ Iterator operator++(int){ Iterator old(*this); ++ptr_; return old; }
+ Iterator operator--(int){ Iterator old(*this); --ptr_; return old; }
+ //@}
+
+ //! @name increment/decrement
+ //@{
+ Iterator operator+(DifferenceType n) const { return Iterator(ptr_+n); }
+ Iterator operator-(DifferenceType n) const { return Iterator(ptr_-n); }
+
+ Iterator& operator+=(DifferenceType n) { ptr_+=n; return *this; }
+ Iterator& operator-=(DifferenceType n) { ptr_-=n; return *this; }
+ //@}
+
+ //! @name relations
+ //@{
+ bool operator==(ConstIterator that) const { return ptr_ == that.ptr_; }
+ bool operator!=(ConstIterator that) const { return ptr_ != that.ptr_; }
+ bool operator<=(ConstIterator that) const { return ptr_ <= that.ptr_; }
+ bool operator>=(ConstIterator that) const { return ptr_ >= that.ptr_; }
+ bool operator< (ConstIterator that) const { return ptr_ < that.ptr_; }
+ bool operator> (ConstIterator that) const { return ptr_ > that.ptr_; }
+ //@}
+
+ //! @name dereference
+ //@{
+ Reference operator*() const { return *ptr_; }
+ Pointer operator->() const { return ptr_; }
+ Reference operator[](DifferenceType n) const { return ptr_[n]; }
+ //@}
+
+ //! Distance
+ DifferenceType operator-(ConstIterator that) const { return ptr_-that.ptr_; }
+
+private:
+ //! Internal constructor from plain pointer
+ explicit GenericMemberIterator(Pointer p) : ptr_(p) {}
+
+ Pointer ptr_; //!< raw pointer
+};
+
+#else // RAPIDJSON_NOMEMBERITERATORCLASS
+
+// class-based member iterator implementation disabled, use plain pointers
+
+template <bool Const, typename Encoding, typename Allocator>
+struct GenericMemberIterator;
+
+//! non-const GenericMemberIterator
+template <typename Encoding, typename Allocator>
+struct 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> {
+ //! use plain const pointer as iterator type
+ typedef const GenericMember<Encoding,Allocator>* Iterator;
+};
+
+#endif // RAPIDJSON_NOMEMBERITERATORCLASS
+
+///////////////////////////////////////////////////////////////////////////////
+// GenericStringRef
+
+//! Reference to a constant string (not taking a copy)
+/*!
+ \tparam CharType character type of the string
+
+ This helper class is used to automatically infer constant string
+ references for string literals, especially from \c const \b (!)
+ character arrays.
+
+ The main use is for creating JSON string values without copying the
+ source string via an \ref Allocator. This requires that the referenced
+ string pointers have a sufficient lifetime, which exceeds the lifetime
+ of the associated GenericValue.
+
+ \b Example
+ \code
+ Value v("foo"); // ok, no need to copy & calculate length
+ const char foo[] = "foo";
+ v.SetString(foo); // ok
+
+ const char* bar = foo;
+ // Value x(bar); // not ok, can't rely on bar's lifetime
+ Value x(StringRef(bar)); // lifetime explicitly guaranteed by user
+ Value y(StringRef(bar, 3)); // ok, explicitly pass length
+ \endcode
+
+ \see StringRef, GenericValue::SetString
+*/
+template<typename CharType>
+struct GenericStringRef {
+ typedef CharType Ch; //!< character type of the string
+
+ //! Create string reference from \c const character array
+ /*!
+ This constructor implicitly creates a constant string reference from
+ a \c const character array. It has better performance than
+ \ref StringRef(const CharType*) by inferring the string \ref length
+ from the array length, and also supports strings containing null
+ characters.
+
+ \tparam N length of the string, automatically inferred
+
+ \param str Constant character array, lifetime assumed to be longer
+ than the use of the string in e.g. a GenericValue
+
+ \post \ref s == str
+
+ \note Constant complexity.
+ \note There is a hidden, private overload to disallow references to
+ non-const character arrays to be created via this constructor.
+ By this, e.g. function-scope arrays used to be filled via
+ \c snprintf are excluded from consideration.
+ In such cases, the referenced string should be \b copied to the
+ GenericValue instead.
+ */
+ template<SizeType N>
+ GenericStringRef(const CharType (&str)[N]) RAPIDJSON_NOEXCEPT
+ : s(str), length(N-1) {}
+
+ //! Explicitly create string reference from \c const character pointer
+ /*!
+ This constructor can be used to \b explicitly create a reference to
+ a constant string pointer.
+
+ \see StringRef(const CharType*)
+
+ \param str Constant character pointer, lifetime assumed to be longer
+ than the use of the string in e.g. a GenericValue
+
+ \post \ref s == str
+
+ \note There is a hidden, private overload to disallow references to
+ non-const character arrays to be created via this constructor.
+ By this, e.g. function-scope arrays used to be filled via
+ \c snprintf are excluded from consideration.
+ In such cases, the referenced string should be \b copied to the
+ GenericValue instead.
+ */
+ explicit GenericStringRef(const CharType* str)
+ : s(str), length(internal::StrLen(str)){ RAPIDJSON_ASSERT(s != NULL); }
+
+ //! Create constant string reference from pointer and length
+ /*! \param str constant string, lifetime assumed to be longer than the use of the string in e.g. a GenericValue
+ \param len length of the string, excluding the trailing NULL terminator
+
+ \post \ref s == str && \ref length == len
+ \note Constant complexity.
+ */
+ GenericStringRef(const CharType* str, SizeType len)
+ : s(str), length(len) { RAPIDJSON_ASSERT(s != NULL); }
+
+ //! implicit conversion to plain CharType pointer
+ operator const Ch *() const { return s; }
+
+ const Ch* const s; //!< plain CharType pointer
+ const SizeType length; //!< length of the string (excluding the trailing NULL terminator)
+
+private:
+ //! Disallow copy-assignment
+ GenericStringRef operator=(const GenericStringRef&);
+ //! Disallow construction from non-const array
+ template<SizeType N>
+ GenericStringRef(CharType (&str)[N]) /* = delete */;
+};
+
+//! 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
+ value in a JSON GenericValue object, if the string's lifetime is known
+ to be valid long enough.
+ \tparam CharType Character type of the string
+ \param str Constant string, lifetime assumed to be longer than the use of the string in e.g. a GenericValue
+ \return GenericStringRef string reference object
+ \relatesalso GenericStringRef
+
+ \see GenericValue::GenericValue(StringRefType), GenericValue::operator=(StringRefType), GenericValue::SetString(StringRefType), GenericValue::PushBack(StringRefType, Allocator&), GenericValue::AddMember
+*/
+template<typename CharType>
+inline GenericStringRef<CharType> StringRef(const CharType* str) {
+ return GenericStringRef<CharType>(str, internal::StrLen(str));
+}
+
+//! 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
+ value in a JSON GenericValue object, if the string's lifetime is known
+ to be valid long enough.
+
+ This version has better performance with supplied length, and also
+ supports string containing null characters.
+
+ \tparam CharType character type of the string
+ \param str Constant string, lifetime assumed to be longer than the use of the string in e.g. a GenericValue
+ \param length The length of source string.
+ \return GenericStringRef string reference object
+ \relatesalso GenericStringRef
+*/
+template<typename CharType>
+inline GenericStringRef<CharType> StringRef(const CharType* str, size_t length) {
+ return GenericStringRef<CharType>(str, SizeType(length));
+}
+
+#if RAPIDJSON_HAS_STDSTRING
+//! Mark a string object as constant string
+/*! Mark a string object (e.g. \c std::string) as a "string literal".
+ This function can be used to avoid copying a string to be referenced as a
+ value in a JSON GenericValue object, if the string's lifetime is known
+ to be valid long enough.
+
+ \tparam CharType character type of the string
+ \param str Constant string, lifetime assumed to be longer than the use of the string in e.g. a GenericValue
+ \return GenericStringRef string reference object
+ \relatesalso GenericStringRef
+ \note Requires the definition of the preprocessor symbol \ref RAPIDJSON_HAS_STDSTRING.
+*/
+template<typename CharType>
+inline GenericStringRef<CharType> StringRef(const std::basic_string<CharType>& str) {
+ return GenericStringRef<CharType>(str.data(), SizeType(str.size()));
+}
+#endif
+
+///////////////////////////////////////////////////////////////////////////////
+// GenericValue type traits
+namespace internal {
+
+template <typename T, typename Encoding = void, typename Allocator = void>
+struct IsGenericValueImpl : FalseType {};
+
+// select candidates according to nested encoding and allocator types
+template <typename T> struct IsGenericValueImpl<T, typename Void<typename T::EncodingType>::Type, typename Void<typename T::AllocatorType>::Type>
+ : IsBaseOf<GenericValue<typename T::EncodingType, typename T::AllocatorType>, T>::Type {};
+
+// helper to match arbitrary GenericValue instantiations, including derived classes
+template <typename T> struct IsGenericValue : IsGenericValueImpl<T>::Type {};
+
+} // namespace internal
+
+///////////////////////////////////////////////////////////////////////////////
+// GenericValue
+
+//! Represents a JSON value. Use Value for UTF8 encoding and default allocator.
+/*!
+ A JSON value can be one of 7 types. This class is a variant type supporting
+ these types.
+
+ Use the Value if UTF8 and default allocator
+
+ \tparam Encoding Encoding of the value. (Even non-string values need to have the same encoding in a document)
+ \tparam Allocator Allocator type for allocating memory of object, array and string.
+*/
+template <typename Encoding, typename Allocator = MemoryPoolAllocator<> >
+class GenericValue {
+public:
+ //! Name-value pair in an object.
+ typedef GenericMember<Encoding, Allocator> Member;
+ typedef Encoding EncodingType; //!< Encoding type from template parameter.
+ typedef Allocator AllocatorType; //!< Allocator type from template parameter.
+ typedef typename Encoding::Ch Ch; //!< Character type derived from Encoding.
+ typedef GenericStringRef<Ch> StringRefType; //!< Reference to a constant string
+ typedef typename GenericMemberIterator<false,Encoding,Allocator>::Iterator MemberIterator; //!< Member iterator for iterating in object.
+ typedef typename GenericMemberIterator<true,Encoding,Allocator>::Iterator ConstMemberIterator; //!< Constant member iterator for iterating in object.
+ typedef GenericValue* ValueIterator; //!< Value iterator for iterating in array.
+ typedef const GenericValue* ConstValueIterator; //!< Constant value iterator for iterating in array.
+
+ //!@name Constructors and destructor.
+ //@{
+
+ //! Default constructor creates a null value.
+ GenericValue() RAPIDJSON_NOEXCEPT : data_(), flags_(kNullFlag) {}
+
+#if RAPIDJSON_HAS_CXX11_RVALUE_REFS
+ //! Move constructor in C++11
+ GenericValue(GenericValue&& rhs) RAPIDJSON_NOEXCEPT : data_(rhs.data_), flags_(rhs.flags_) {
+ rhs.flags_ = kNullFlag; // give up contents
+ }
+#endif
+
+private:
+ //! Copy constructor is not permitted.
+ GenericValue(const GenericValue& rhs);
+
+public:
+
+ //! Constructor with JSON value type.
+ /*! This creates a Value of specified type with default content.
+ \param type Type of the value.
+ \note Default content for number is zero.
+ */
+ GenericValue(Type type) RAPIDJSON_NOEXCEPT : data_(), flags_() {
+ static const unsigned defaultFlags[7] = {
+ kNullFlag, kFalseFlag, kTrueFlag, kObjectFlag, kArrayFlag, kConstStringFlag,
+ kNumberAnyFlag
+ };
+ RAPIDJSON_ASSERT(type <= kNumberType);
+ flags_ = defaultFlags[type];
+ }
+
+ //! Explicit copy constructor (with allocator)
+ /*! Creates a copy of a Value by using the given Allocator
+ \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().
+ \see CopyFrom()
+ */
+ template< typename SourceAllocator >
+ GenericValue(const GenericValue<Encoding, SourceAllocator>& rhs, Allocator & allocator);
+
+ //! Constructor for boolean value.
+ /*! \param b Boolean value
+ \note This constructor is limited to \em real boolean values and rejects
+ implicitly converted types like arbitrary pointers. Use an explicit cast
+ to \c bool, if you want to construct a boolean JSON value in such cases.
+ */
+#ifndef RAPIDJSON_DOXYGEN_RUNNING // hide SFINAE from Doxygen
+ template <typename T>
+ explicit GenericValue(T b, RAPIDJSON_ENABLEIF((internal::IsSame<T,bool>))) RAPIDJSON_NOEXCEPT
+#else
+ explicit GenericValue(bool b) RAPIDJSON_NOEXCEPT
+#endif
+ : data_(), flags_(b ? kTrueFlag : kFalseFlag) {
+ // safe-guard against failing SFINAE
+ RAPIDJSON_STATIC_ASSERT((internal::IsSame<bool,T>::Value));
+ }
+
+ //! Constructor for int value.
+ explicit GenericValue(int i) RAPIDJSON_NOEXCEPT : data_(), flags_(kNumberIntFlag) {
+ data_.n.i64 = i;
+ if (i >= 0)
+ flags_ |= kUintFlag | kUint64Flag;
+ }
+
+ //! Constructor for unsigned value.
+ explicit GenericValue(unsigned u) RAPIDJSON_NOEXCEPT : data_(), flags_(kNumberUintFlag) {
+ data_.n.u64 = u;
+ if (!(u & 0x80000000))
+ flags_ |= kIntFlag | kInt64Flag;
+ }
+
+ //! Constructor for int64_t value.
+ explicit GenericValue(int64_t i64) RAPIDJSON_NOEXCEPT : data_(), flags_(kNumberInt64Flag) {
+ data_.n.i64 = i64;
+ if (i64 >= 0) {
+ flags_ |= kNumberUint64Flag;
+ if (!(static_cast<uint64_t>(i64) & RAPIDJSON_UINT64_C2(0xFFFFFFFF, 0x00000000)))
+ flags_ |= kUintFlag;
+ if (!(static_cast<uint64_t>(i64) & RAPIDJSON_UINT64_C2(0xFFFFFFFF, 0x80000000)))
+ flags_ |= kIntFlag;
+ }
+ else if (i64 >= static_cast<int64_t>(RAPIDJSON_UINT64_C2(0xFFFFFFFF, 0x80000000)))
+ flags_ |= kIntFlag;
+ }
+
+ //! Constructor for uint64_t value.
+ explicit GenericValue(uint64_t u64) RAPIDJSON_NOEXCEPT : data_(), flags_(kNumberUint64Flag) {
+ data_.n.u64 = u64;
+ if (!(u64 & RAPIDJSON_UINT64_C2(0x80000000, 0x00000000)))
+ flags_ |= kInt64Flag;
+ if (!(u64 & RAPIDJSON_UINT64_C2(0xFFFFFFFF, 0x00000000)))
+ flags_ |= kUintFlag;
+ if (!(u64 & RAPIDJSON_UINT64_C2(0xFFFFFFFF, 0x80000000)))
+ flags_ |= kIntFlag;
+ }
+
+ //! Constructor for double value.
+ explicit GenericValue(double d) RAPIDJSON_NOEXCEPT : data_(), flags_(kNumberDoubleFlag) { data_.n.d = d; }
+
+ //! Constructor for constant string (i.e. do not make a copy of string)
+ GenericValue(const Ch* s, SizeType length) RAPIDJSON_NOEXCEPT : data_(), flags_() { SetStringRaw(StringRef(s, length)); }
+
+ //! Constructor for constant string (i.e. do not make a copy of string)
+ explicit GenericValue(StringRefType s) RAPIDJSON_NOEXCEPT : data_(), flags_() { SetStringRaw(s); }
+
+ //! Constructor for copy-string (i.e. do make a copy of string)
+ GenericValue(const Ch* s, SizeType length, Allocator& allocator) : data_(), flags_() { SetStringRaw(StringRef(s, length), allocator); }
+
+ //! Constructor for copy-string (i.e. do make a copy of string)
+ GenericValue(const Ch*s, Allocator& allocator) : data_(), flags_() { SetStringRaw(StringRef(s), allocator); }
+
+#if RAPIDJSON_HAS_STDSTRING
+ //! Constructor for copy-string from a string object (i.e. do make a copy of string)
+ /*! \note Requires the definition of the preprocessor symbol \ref RAPIDJSON_HAS_STDSTRING.
+ */
+ GenericValue(const std::basic_string<Ch>& s, Allocator& allocator) : data_(), flags_() { SetStringRaw(StringRef(s), allocator); }
+#endif
+
+ //! Destructor.
+ /*! Need to destruct elements of array, members of object, or copy-string.
+ */
+ ~GenericValue() {
+ if (Allocator::kNeedFree) { // Shortcut by Allocator's trait
+ switch(flags_) {
+ case kArrayFlag:
+ for (GenericValue* v = data_.a.elements; v != data_.a.elements + data_.a.size; ++v)
+ v->~GenericValue();
+ Allocator::Free(data_.a.elements);
+ break;
+
+ case kObjectFlag:
+ for (MemberIterator m = MemberBegin(); m != MemberEnd(); ++m)
+ m->~Member();
+ Allocator::Free(data_.o.members);
+ break;
+
+ case kCopyStringFlag:
+ Allocator::Free(const_cast<Ch*>(data_.s.str));
+ break;
+
+ default:
+ break; // Do nothing for other types.
+ }
+ }
+ }
+
+ //@}
+
+ //!@name Assignment operators
+ //@{
+
+ //! Assignment with move semantics.
+ /*! \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);
+ return *this;
+ }
+
+#if RAPIDJSON_HAS_CXX11_RVALUE_REFS
+ //! Move assignment in C++11
+ GenericValue& operator=(GenericValue&& rhs) RAPIDJSON_NOEXCEPT {
+ return *this = rhs.Move();
+ }
+#endif
+
+ //! Assignment of constant string reference (no copy)
+ /*! \param str Constant string reference to be assigned
+ \note This overload is needed to avoid clashes with the generic primitive type assignment overload below.
+ \see GenericStringRef, operator=(T)
+ */
+ GenericValue& operator=(StringRefType str) RAPIDJSON_NOEXCEPT {
+ GenericValue s(str);
+ return *this = s;
+ }
+
+ //! Assignment with primitive types.
+ /*! \tparam T Either \ref Type, \c int, \c unsigned, \c int64_t, \c uint64_t
+ \param value The value to be assigned.
+
+ \note The source type \c T explicitly disallows all pointer types,
+ especially (\c const) \ref Ch*. This helps avoiding implicitly
+ referencing character strings with insufficient lifetime, use
+ \ref SetString(const Ch*, Allocator&) (for copying) or
+ \ref StringRef() (to explicitly mark the pointer as constant) instead.
+ All other pointer types would implicitly convert to \c bool,
+ use \ref SetBool() instead.
+ */
+ template <typename T>
+ RAPIDJSON_DISABLEIF_RETURN((internal::IsPointer<T>), (GenericValue&))
+ operator=(T value) {
+ GenericValue v(value);
+ return *this = v;
+ }
+
+ //! Deep-copy assignment from Value
+ /*! Assigns a \b copy of the Value to the current Value object
+ \tparam SourceAllocator Allocator type of \c rhs
+ \param rhs Value to copy from (read-only)
+ \param allocator Allocator to use for copying
+ */
+ template <typename SourceAllocator>
+ GenericValue& CopyFrom(const GenericValue<Encoding, SourceAllocator>& rhs, Allocator& allocator) {
+ RAPIDJSON_ASSERT((void*)this != (void const*)&rhs);
+ this->~GenericValue();
+ new (this) GenericValue(rhs, allocator);
+ return *this;
+ }
+
+ //! Exchange the contents of this value with those of other.
+ /*!
+ \param other Another value.
+ \note Constant complexity.
+ */
+ GenericValue& Swap(GenericValue& other) RAPIDJSON_NOEXCEPT {
+ GenericValue temp;
+ temp.RawAssign(*this);
+ RawAssign(other);
+ other.RawAssign(temp);
+ return *this;
+ }
+
+ //! Prepare Value for move semantics
+ /*! \return *this */
+ GenericValue& Move() RAPIDJSON_NOEXCEPT { return *this; }
+ //@}
+
+ //!@name Equal-to and not-equal-to operators
+ //@{
+ //! 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).
+ */
+ template <typename SourceAllocator>
+ bool operator==(const GenericValue<Encoding, SourceAllocator>& rhs) const {
+ typedef GenericValue<Encoding, SourceAllocator> RhsType;
+ if (GetType() != rhs.GetType())
+ return false;
+
+ switch (GetType()) {
+ case kObjectType: // Warning: O(n^2) inner-loop
+ if (data_.o.size != rhs.data_.o.size)
+ return false;
+ for (ConstMemberIterator lhsMemberItr = MemberBegin(); lhsMemberItr != MemberEnd(); ++lhsMemberItr) {
+ typename RhsType::ConstMemberIterator rhsMemberItr = rhs.FindMember(lhsMemberItr->name);
+ if (rhsMemberItr == rhs.MemberEnd() || lhsMemberItr->value != rhsMemberItr->value)
+ return false;
+ }
+ return true;
+
+ case kArrayType:
+ if (data_.a.size != rhs.data_.a.size)
+ return false;
+ for (SizeType i = 0; i < data_.a.size; i++)
+ if ((*this)[i] != rhs[i])
+ return false;
+ return true;
+
+ case kStringType:
+ return StringEqual(rhs);
+
+ case kNumberType:
+ if (IsDouble() || rhs.IsDouble())
+ return GetDouble() == rhs.GetDouble(); // May convert one operand from integer to double.
+ else
+ return data_.n.u64 == rhs.data_.n.u64;
+
+ default: // kTrueType, kFalseType, kNullType
+ return true;
+ }
+ }
+
+ //! Equal-to operator with const C-string pointer
+ bool operator==(const Ch* rhs) const { return *this == GenericValue(StringRef(rhs)); }
+
+#if RAPIDJSON_HAS_STDSTRING
+ //! Equal-to operator with string object
+ /*! \note Requires the definition of the preprocessor symbol \ref RAPIDJSON_HAS_STDSTRING.
+ */
+ bool operator==(const std::basic_string<Ch>& rhs) const { return *this == GenericValue(StringRef(rhs)); }
+#endif
+
+ //! Equal-to operator with primitive types
+ /*! \tparam T Either \ref Type, \c int, \c unsigned, \c int64_t, \c uint64_t, \c double, \c true, \c false
+ */
+ template <typename T> RAPIDJSON_DISABLEIF_RETURN((internal::OrExpr<internal::IsPointer<T>,internal::IsGenericValue<T> >), (bool)) operator==(const T& rhs) const { return *this == GenericValue(rhs); }
+
+ //! Not-equal-to operator
+ /*! \return !(*this == rhs)
+ */
+ template <typename SourceAllocator>
+ bool operator!=(const GenericValue<Encoding, SourceAllocator>& rhs) const { return !(*this == rhs); }
+
+ //! Not-equal-to operator with const C-string pointer
+ bool operator!=(const Ch* rhs) const { return !(*this == rhs); }
+
+ //! Not-equal-to operator with arbitrary types
+ /*! \return !(*this == rhs)
+ */
+ template <typename T> RAPIDJSON_DISABLEIF_RETURN((internal::IsGenericValue<T>), (bool)) operator!=(const T& rhs) const { return !(*this == rhs); }
+
+ //! Equal-to operator with arbitrary types (symmetric version)
+ /*! \return (rhs == lhs)
+ */
+ template <typename T> friend RAPIDJSON_DISABLEIF_RETURN((internal::IsGenericValue<T>), (bool)) operator==(const T& lhs, const GenericValue& rhs) { return rhs == lhs; }
+
+ //! Not-Equal-to operator with arbitrary types (symmetric version)
+ /*! \return !(rhs == lhs)
+ */
+ template <typename T> friend RAPIDJSON_DISABLEIF_RETURN((internal::IsGenericValue<T>), (bool)) operator!=(const T& lhs, const GenericValue& rhs) { return !(rhs == lhs); }
+ //@}
+
+ //!@name Type
+ //@{
+
+ Type GetType() const { return static_cast<Type>(flags_ & kTypeMask); }
+ bool IsNull() const { return flags_ == kNullFlag; }
+ bool IsFalse() const { return flags_ == kFalseFlag; }
+ bool IsTrue() const { return flags_ == kTrueFlag; }
+ bool IsBool() const { return (flags_ & kBoolFlag) != 0; }
+ bool IsObject() const { return flags_ == kObjectFlag; }
+ bool IsArray() const { return flags_ == kArrayFlag; }
+ bool IsNumber() const { return (flags_ & kNumberFlag) != 0; }
+ bool IsInt() const { return (flags_ & kIntFlag) != 0; }
+ bool IsUint() const { return (flags_ & kUintFlag) != 0; }
+ bool IsInt64() const { return (flags_ & kInt64Flag) != 0; }
+ bool IsUint64() const { return (flags_ & kUint64Flag) != 0; }
+ bool IsDouble() const { return (flags_ & kDoubleFlag) != 0; }
+ bool IsString() const { return (flags_ & kStringFlag) != 0; }
+
+ //@}
+
+ //!@name Null
+ //@{
+
+ GenericValue& SetNull() { this->~GenericValue(); new (this) GenericValue(); return *this; }
+
+ //@}
+
+ //!@name Bool
+ //@{
+
+ bool GetBool() const { RAPIDJSON_ASSERT(IsBool()); return flags_ == kTrueFlag; }
+ //!< Set boolean value
+ /*! \post IsBool() == true */
+ GenericValue& SetBool(bool b) { this->~GenericValue(); new (this) GenericValue(b); return *this; }
+
+ //@}
+
+ //!@name Object
+ //@{
+
+ //! Set this value as an empty object.
+ /*! \post IsObject() == true */
+ GenericValue& SetObject() { this->~GenericValue(); new (this) GenericValue(kObjectType); return *this; }
+
+ //! Get the number of members in the object.
+ SizeType MemberCount() const { RAPIDJSON_ASSERT(IsObject()); return data_.o.size; }
+
+ //! Check whether the object is empty.
+ bool ObjectEmpty() const { RAPIDJSON_ASSERT(IsObject()); return data_.o.size == 0; }
+
+ //! Get the value associated with the name.
+ /*!
+ \note In version 0.1x, if the member is not found, this function returns a null value. This makes issue 7.
+ Since 0.2, if the name is not correct, it will assert.
+ If user is unsure whether a member exists, user should use HasMember() first.
+ A better approach is to use FindMember().
+ \note Linear time complexity.
+ */
+ GenericValue& operator[](const Ch* name) {
+ GenericValue n(StringRef(name));
+ return (*this)[n];
+ }
+ const GenericValue& operator[](const Ch* name) const { return const_cast<GenericValue&>(*this)[name]; }
+
+ // This version is faster because it does not need a StrLen().
+ // It can also handle string with null character.
+ template <typename SourceAllocator>
+ GenericValue& operator[](const GenericValue<Encoding, SourceAllocator>& name) {
+ MemberIterator member = FindMember(name);
+ if (member != MemberEnd())
+ return member->value;
+ else {
+ RAPIDJSON_ASSERT(false); // see above note
+ static GenericValue NullValue;
+ return NullValue;
+ }
+ }
+ template <typename SourceAllocator>
+ const GenericValue& operator[](const GenericValue<Encoding, SourceAllocator>& name) const { return const_cast<GenericValue&>(*this)[name]; }
+
+ //! Const member iterator
+ /*! \pre IsObject() == true */
+ ConstMemberIterator MemberBegin() const { RAPIDJSON_ASSERT(IsObject()); return ConstMemberIterator(data_.o.members); }
+ //! Const \em past-the-end member iterator
+ /*! \pre IsObject() == true */
+ ConstMemberIterator MemberEnd() const { RAPIDJSON_ASSERT(IsObject()); return ConstMemberIterator(data_.o.members + data_.o.size); }
+ //! Member iterator
+ /*! \pre IsObject() == true */
+ MemberIterator MemberBegin() { RAPIDJSON_ASSERT(IsObject()); return MemberIterator(data_.o.members); }
+ //! \em Past-the-end member iterator
+ /*! \pre IsObject() == true */
+ MemberIterator MemberEnd() { RAPIDJSON_ASSERT(IsObject()); return MemberIterator(data_.o.members + data_.o.size); }
+
+ //! Check whether a member exists in the object.
+ /*!
+ \param name Member name to be searched.
+ \pre IsObject() == true
+ \return Whether a member with that name exists.
+ \note It is better to use FindMember() directly if you need the obtain the value as well.
+ \note Linear time complexity.
+ */
+ bool HasMember(const Ch* name) const { return FindMember(name) != MemberEnd(); }
+
+ //! Check whether a member exists in the object with GenericValue name.
+ /*!
+ This version is faster because it does not need a StrLen(). It can also handle string with null character.
+ \param name Member name to be searched.
+ \pre IsObject() == true
+ \return Whether a member with that name exists.
+ \note It is better to use FindMember() directly if you need the obtain the value as well.
+ \note Linear time complexity.
+ */
+ template <typename SourceAllocator>
+ bool HasMember(const GenericValue<Encoding, SourceAllocator>& name) const { return FindMember(name) != MemberEnd(); }
+
+ //! Find member by name.
+ /*!
+ \param name Member name to be searched.
+ \pre IsObject() == true
+ \return Iterator to member, if it exists.
+ Otherwise returns \ref MemberEnd().
+
+ \note Earlier versions of Rapidjson returned a \c NULL pointer, in case
+ the requested member doesn't exist. For consistency with e.g.
+ \c std::map, this has been changed to MemberEnd() now.
+ \note Linear time complexity.
+ */
+ MemberIterator FindMember(const Ch* name) {
+ GenericValue n(StringRef(name));
+ return FindMember(n);
+ }
+
+ ConstMemberIterator FindMember(const Ch* name) const { return const_cast<GenericValue&>(*this).FindMember(name); }
+
+ //! Find member by name.
+ /*!
+ This version is faster because it does not need a StrLen(). It can also handle string with null character.
+ \param name Member name to be searched.
+ \pre IsObject() == true
+ \return Iterator to member, if it exists.
+ Otherwise returns \ref MemberEnd().
+
+ \note Earlier versions of Rapidjson returned a \c NULL pointer, in case
+ the requested member doesn't exist. For consistency with e.g.
+ \c std::map, this has been changed to MemberEnd() now.
+ \note Linear time complexity.
+ */
+ template <typename SourceAllocator>
+ MemberIterator FindMember(const GenericValue<Encoding, SourceAllocator>& name) {
+ RAPIDJSON_ASSERT(IsObject());
+ RAPIDJSON_ASSERT(name.IsString());
+ MemberIterator member = MemberBegin();
+ for ( ; member != MemberEnd(); ++member)
+ if (name.StringEqual(member->name))
+ break;
+ return member;
+ }
+ template <typename SourceAllocator> ConstMemberIterator FindMember(const GenericValue<Encoding, SourceAllocator>& name) const { return const_cast<GenericValue&>(*this).FindMember(name); }
+
+ //! Add a member (name-value pair) to the object.
+ /*! \param name A string value as name of member.
+ \param value Value of any type.
+ \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 The ownership of \c name and \c value will be transferred to this object on success.
+ \pre IsObject() && name.IsString()
+ \post name.IsNull() && value.IsNull()
+ \note Amortized Constant time complexity.
+ */
+ GenericValue& AddMember(GenericValue& name, GenericValue& value, Allocator& allocator) {
+ RAPIDJSON_ASSERT(IsObject());
+ RAPIDJSON_ASSERT(name.IsString());
+
+ Object& o = data_.o;
+ if (o.size >= o.capacity) {
+ if (o.capacity == 0) {
+ o.capacity = kDefaultObjectCapacity;
+ o.members = reinterpret_cast<Member*>(allocator.Malloc(o.capacity * sizeof(Member)));
+ }
+ else {
+ SizeType oldCapacity = o.capacity;
+ o.capacity += (oldCapacity + 1) / 2; // grow by factor 1.5
+ o.members = reinterpret_cast<Member*>(allocator.Realloc(o.members, oldCapacity * sizeof(Member), o.capacity * sizeof(Member)));
+ }
+ }
+ o.members[o.size].name.RawAssign(name);
+ o.members[o.size].value.RawAssign(value);
+ o.size++;
+ return *this;
+ }
+
+#if RAPIDJSON_HAS_CXX11_RVALUE_REFS
+ GenericValue& AddMember(GenericValue&& name, GenericValue&& value, Allocator& allocator) {
+ return AddMember(name, value, allocator);
+ }
+ GenericValue& AddMember(GenericValue&& name, GenericValue& value, Allocator& allocator) {
+ return AddMember(name, value, allocator);
+ }
+ GenericValue& AddMember(GenericValue& name, GenericValue&& value, Allocator& allocator) {
+ return AddMember(name, value, allocator);
+ }
+ GenericValue& AddMember(StringRefType name, GenericValue&& value, Allocator& allocator) {
+ GenericValue n(name);
+ return AddMember(n, value, allocator);
+ }
+#endif // RAPIDJSON_HAS_CXX11_RVALUE_REFS
+
+
+ //! Add a member (name-value pair) to the object.
+ /*! \param name A constant string reference as name of member.
+ \param value Value of any type.
+ \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 The ownership of \c value will be transferred to this object on success.
+ \pre IsObject()
+ \post value.IsNull()
+ \note Amortized Constant time complexity.
+ */
+ GenericValue& AddMember(StringRefType name, GenericValue& value, Allocator& allocator) {
+ GenericValue n(name);
+ return AddMember(n, value, allocator);
+ }
+
+ //! Add a constant string value as member (name-value pair) to the object.
+ /*! \param name A constant string reference as name of member.
+ \param value constant string reference as value of member.
+ \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.
+ \pre IsObject()
+ \note This overload is needed to avoid clashes with the generic primitive type AddMember(StringRefType,T,Allocator&) overload below.
+ \note Amortized Constant time complexity.
+ */
+ GenericValue& AddMember(StringRefType name, StringRefType value, Allocator& allocator) {
+ GenericValue v(value);
+ return AddMember(name, v, allocator);
+ }
+
+ //! Add any primitive value as member (name-value pair) to the object.
+ /*! \tparam T Either \ref Type, \c int, \c unsigned, \c int64_t, \c uint64_t
+ \param name A constant string reference as name of member.
+ \param value Value of primitive type \c T as value of member
+ \param allocator Allocator for reallocating memory. Commonly use GenericDocument::GetAllocator().
+ \return The value itself for fluent API.
+ \pre IsObject()
+
+ \note The source type \c T explicitly disallows all pointer types,
+ especially (\c const) \ref Ch*. This helps avoiding implicitly
+ referencing character strings with insufficient lifetime, use
+ \ref AddMember(StringRefType, GenericValue&, Allocator&) or \ref
+ AddMember(StringRefType, StringRefType, Allocator&).
+ All other pointer types would implicitly convert to \c bool,
+ use an explicit cast instead, if needed.
+ \note Amortized Constant time complexity.
+ */
+ template <typename T>
+ RAPIDJSON_DISABLEIF_RETURN((internal::OrExpr<internal::IsPointer<T>, internal::IsGenericValue<T> >), (GenericValue&))
+ AddMember(StringRefType name, T value, Allocator& allocator) {
+ GenericValue n(name);
+ GenericValue v(value);
+ return AddMember(n, v, allocator);
+ }
+
+ //! Remove all members in the object.
+ /*! This function do not deallocate memory in the object, i.e. the capacity is unchanged.
+ \note Linear time complexity.
+ */
+ void RemoveAllMembers() {
+ RAPIDJSON_ASSERT(IsObject());
+ for (MemberIterator m = MemberBegin(); m != MemberEnd(); ++m)
+ m->~Member();
+ data_.o.size = 0;
+ }
+
+ //! Remove a member in object by its name.
+ /*! \param name Name of member to be removed.
+ \return Whether the member existed.
+ \note Removing member is implemented by moving the last member. So the ordering of members is changed.
+ \note Linear time complexity.
+ */
+ bool RemoveMember(const Ch* name) {
+ GenericValue n(StringRef(name));
+ return RemoveMember(n);
+ }
+
+ template <typename SourceAllocator>
+ bool RemoveMember(const GenericValue<Encoding, SourceAllocator>& name) {
+ MemberIterator m = FindMember(name);
+ if (m != MemberEnd()) {
+ RemoveMember(m);
+ return true;
+ }
+ else
+ return false;
+ }
+
+ //! Remove a member in object by iterator.
+ /*! \param m member iterator (obtained by FindMember() or MemberBegin()).
+ \return the new iterator after removal.
+ \note Removing member is implemented by moving the last member. So the ordering of members is changed.
+ \note Use \ref EraseMember(ConstMemberIterator) instead, if you need to rely on a stable member ordering.
+ \note Constant time complexity.
+ */
+ MemberIterator RemoveMember(MemberIterator m) {
+ RAPIDJSON_ASSERT(IsObject());
+ RAPIDJSON_ASSERT(data_.o.size > 0);
+ RAPIDJSON_ASSERT(data_.o.members != 0);
+ RAPIDJSON_ASSERT(m >= MemberBegin() && m < MemberEnd());
+
+ MemberIterator last(data_.o.members + (data_.o.size - 1));
+ if (data_.o.size > 1 && m != last) {
+ // Move the last one to this place
+ *m = *last;
+ }
+ else {
+ // Only one left, just destroy
+ m->~Member();
+ }
+ --data_.o.size;
+ return m;
+ }
+
+ //! Remove a member from an object by iterator.
+ /*! \param pos iterator to the member to remove
+ \pre IsObject() == true && \ref MemberBegin() <= \c pos < \ref MemberEnd()
+ \return Iterator following the removed element.
+ If the iterator \c pos refers to the last element, the \ref MemberEnd() iterator is returned.
+ \note Other than \ref RemoveMember(MemberIterator), this function preserves the ordering of the members.
+ \note Linear time complexity.
+ */
+ MemberIterator EraseMember(ConstMemberIterator pos) {
+ return EraseMember(pos, pos +1);
+ }
+
+ //! Remove members in the range [first, last) from an object.
+ /*! \param first iterator to the first member to remove
+ \param last iterator following the last member to remove
+ \pre IsObject() == true && \ref MemberBegin() <= \c first <= \c last <= \ref MemberEnd()
+ \return Iterator following the last removed element.
+ \note Other than \ref RemoveMember(MemberIterator), this function preserves the ordering of the members.
+ \note Linear time complexity.
+ */
+ MemberIterator EraseMember(ConstMemberIterator first, ConstMemberIterator last) {
+ RAPIDJSON_ASSERT(IsObject());
+ RAPIDJSON_ASSERT(data_.o.size > 0);
+ RAPIDJSON_ASSERT(data_.o.members != 0);
+ RAPIDJSON_ASSERT(first >= MemberBegin());
+ RAPIDJSON_ASSERT(first <= last);
+ RAPIDJSON_ASSERT(last <= MemberEnd());
+
+ MemberIterator pos = MemberBegin() + (first - MemberBegin());
+ for (MemberIterator itr = pos; itr != last; ++itr)
+ itr->~Member();
+ std::memmove(&*pos, &*last, (MemberEnd() - last) * sizeof(Member));
+ data_.o.size -= (last - first);
+ return pos;
+ }
+
+ //@}
+
+ //!@name Array
+ //@{
+
+ //! Set this value as an empty array.
+ /*! \post IsArray == true */
+ GenericValue& SetArray() { this->~GenericValue(); new (this) GenericValue(kArrayType); return *this; }
+
+ //! Get the number of elements in array.
+ SizeType Size() const { RAPIDJSON_ASSERT(IsArray()); return data_.a.size; }
+
+ //! Get the capacity of array.
+ SizeType Capacity() const { RAPIDJSON_ASSERT(IsArray()); return data_.a.capacity; }
+
+ //! Check whether the array is empty.
+ bool Empty() const { RAPIDJSON_ASSERT(IsArray()); return data_.a.size == 0; }
+
+ //! Remove all elements in the array.
+ /*! This function do not deallocate memory in the array, i.e. the capacity is unchanged.
+ \note Linear time complexity.
+ */
+ void Clear() {
+ RAPIDJSON_ASSERT(IsArray());
+ for (SizeType i = 0; i < data_.a.size; ++i)
+ data_.a.elements[i].~GenericValue();
+ data_.a.size = 0;
+ }
+
+ //! Get an element from array by index.
+ /*! \param index Zero-based index of element.
+\code
+Value a(kArrayType);
+a.PushBack(123);
+int x = a[0].GetInt(); // Error: operator[ is ambiguous, as 0 also mean a null pointer of const char* type.
+int y = a[SizeType(0)].GetInt(); // Cast to SizeType will work.
+int z = a[0u].GetInt(); // This works too.
+\endcode
+ */
+ GenericValue& operator[](SizeType index) {
+ RAPIDJSON_ASSERT(IsArray());
+ RAPIDJSON_ASSERT(index < data_.a.size);
+ return data_.a.elements[index];
+ }
+ const GenericValue& operator[](SizeType index) const { return const_cast<GenericValue&>(*this)[index]; }
+
+ //! Element iterator
+ /*! \pre IsArray() == true */
+ ValueIterator Begin() { RAPIDJSON_ASSERT(IsArray()); return data_.a.elements; }
+ //! \em Past-the-end element iterator
+ /*! \pre IsArray() == true */
+ ValueIterator End() { RAPIDJSON_ASSERT(IsArray()); return data_.a.elements + data_.a.size; }
+ //! Constant element iterator
+ /*! \pre IsArray() == true */
+ ConstValueIterator Begin() const { return const_cast<GenericValue&>(*this).Begin(); }
+ //! Constant \em past-the-end element iterator
+ /*! \pre IsArray() == true */
+ ConstValueIterator End() const { return const_cast<GenericValue&>(*this).End(); }
+
+ //! Request the array to have enough capacity to store elements.
+ /*! \param newCapacity The capacity that the array 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& Reserve(SizeType newCapacity, Allocator &allocator) {
+ RAPIDJSON_ASSERT(IsArray());
+ if (newCapacity > data_.a.capacity) {
+ data_.a.elements = (GenericValue*)allocator.Realloc(data_.a.elements, data_.a.capacity * sizeof(GenericValue), newCapacity * sizeof(GenericValue));
+ data_.a.capacity = newCapacity;
+ }
+ return *this;
+ }
+
+ //! Append a GenericValue at the end of the array.
+ /*! \param value Value to be appended.
+ \param allocator Allocator for reallocating memory. It must be the same one as used before. Commonly use GenericDocument::GetAllocator().
+ \pre IsArray() == true
+ \post value.IsNull() == true
+ \return The value itself for fluent API.
+ \note The ownership of \c value will be transferred to this array on success.
+ \note If the number of elements to be appended is known, calls Reserve() once first may be more efficient.
+ \note Amortized constant time complexity.
+ */
+ GenericValue& PushBack(GenericValue& value, Allocator& allocator) {
+ RAPIDJSON_ASSERT(IsArray());
+ if (data_.a.size >= data_.a.capacity)
+ Reserve(data_.a.capacity == 0 ? kDefaultArrayCapacity : (data_.a.capacity + (data_.a.capacity + 1) / 2), allocator);
+ data_.a.elements[data_.a.size++].RawAssign(value);
+ return *this;
+ }
+
+#if RAPIDJSON_HAS_CXX11_RVALUE_REFS
+ GenericValue& PushBack(GenericValue&& value, Allocator& allocator) {
+ return PushBack(value, allocator);
+ }
+#endif // RAPIDJSON_HAS_CXX11_RVALUE_REFS
+
+ //! Append a constant string reference at the end of the array.
+ /*! \param value Constant string reference to be appended.
+ \param allocator Allocator for reallocating memory. It must be the same one used previously. Commonly use GenericDocument::GetAllocator().
+ \pre IsArray() == true
+ \return The value itself for fluent API.
+ \note If the number of elements to be appended is known, calls Reserve() once first may be more efficient.
+ \note Amortized constant time complexity.
+ \see GenericStringRef
+ */
+ GenericValue& PushBack(StringRefType value, Allocator& allocator) {
+ return (*this).template PushBack<StringRefType>(value, allocator);
+ }
+
+ //! Append a primitive value at the end of the array.
+ /*! \tparam T Either \ref Type, \c int, \c unsigned, \c int64_t, \c uint64_t
+ \param value Value of primitive type T to be appended.
+ \param allocator Allocator for reallocating memory. It must be the same one as used before. Commonly use GenericDocument::GetAllocator().
+ \pre IsArray() == true
+ \return The value itself for fluent API.
+ \note If the number of elements to be appended is known, calls Reserve() once first may be more efficient.
+
+ \note The source type \c T explicitly disallows all pointer types,
+ especially (\c const) \ref Ch*. This helps avoiding implicitly
+ referencing character strings with insufficient lifetime, use
+ \ref PushBack(GenericValue&, Allocator&) or \ref
+ PushBack(StringRefType, Allocator&).
+ All other pointer types would implicitly convert to \c bool,
+ use an explicit cast instead, if needed.
+ \note Amortized constant time complexity.
+ */
+ template <typename T>
+ RAPIDJSON_DISABLEIF_RETURN((internal::OrExpr<internal::IsPointer<T>, internal::IsGenericValue<T> >), (GenericValue&))
+ PushBack(T value, Allocator& allocator) {
+ GenericValue v(value);
+ return PushBack(v, allocator);
+ }
+
+ //! Remove the last element in the array.
+ /*!
+ \note Constant time complexity.
+ */
+ GenericValue& PopBack() {
+ RAPIDJSON_ASSERT(IsArray());
+ RAPIDJSON_ASSERT(!Empty());
+ data_.a.elements[--data_.a.size].~GenericValue();
+ return *this;
+ }
+
+ //! Remove an element of array by iterator.
+ /*!
+ \param pos iterator to the element to remove
+ \pre IsArray() == true && \ref Begin() <= \c pos < \ref End()
+ \return Iterator following the removed element. If the iterator pos refers to the last element, the End() iterator is returned.
+ \note Linear time complexity.
+ */
+ ValueIterator Erase(ConstValueIterator pos) {
+ return Erase(pos, pos + 1);
+ }
+
+ //! Remove elements in the range [first, last) of the array.
+ /*!
+ \param first iterator to the first element to remove
+ \param last iterator following the last element to remove
+ \pre IsArray() == true && \ref Begin() <= \c first <= \c last <= \ref End()
+ \return Iterator following the last removed element.
+ \note Linear time complexity.
+ */
+ ValueIterator Erase(ConstValueIterator first, ConstValueIterator last) {
+ RAPIDJSON_ASSERT(IsArray());
+ RAPIDJSON_ASSERT(data_.a.size > 0);
+ RAPIDJSON_ASSERT(data_.a.elements != 0);
+ RAPIDJSON_ASSERT(first >= Begin());
+ RAPIDJSON_ASSERT(first <= last);
+ RAPIDJSON_ASSERT(last <= End());
+ ValueIterator pos = Begin() + (first - Begin());
+ for (ValueIterator itr = pos; itr != last; ++itr)
+ itr->~GenericValue();
+ std::memmove(pos, last, (End() - last) * sizeof(GenericValue));
+ data_.a.size -= (last - first);
+ return pos;
+ }
+
+ //@}
+
+ //!@name Number
+ //@{
+
+ int GetInt() const { RAPIDJSON_ASSERT(flags_ & kIntFlag); return data_.n.i.i; }
+ unsigned GetUint() const { RAPIDJSON_ASSERT(flags_ & kUintFlag); return data_.n.u.u; }
+ int64_t GetInt64() const { RAPIDJSON_ASSERT(flags_ & kInt64Flag); return data_.n.i64; }
+ uint64_t GetUint64() const { RAPIDJSON_ASSERT(flags_ & kUint64Flag); return data_.n.u64; }
+
+ double GetDouble() const {
+ RAPIDJSON_ASSERT(IsNumber());
+ if ((flags_ & kDoubleFlag) != 0) return data_.n.d; // exact type, no conversion.
+ if ((flags_ & kIntFlag) != 0) return data_.n.i.i; // int -> double
+ if ((flags_ & kUintFlag) != 0) return data_.n.u.u; // unsigned -> double
+ if ((flags_ & kInt64Flag) != 0) return (double)data_.n.i64; // int64_t -> double (may lose precision)
+ RAPIDJSON_ASSERT((flags_ & kUint64Flag) != 0); return (double)data_.n.u64; // uint64_t -> double (may lose precision)
+ }
+
+ GenericValue& SetInt(int i) { this->~GenericValue(); new (this) GenericValue(i); return *this; }
+ GenericValue& SetUint(unsigned u) { this->~GenericValue(); new (this) GenericValue(u); return *this; }
+ 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; }
+
+ //@}
+
+ //!@name String
+ //@{
+
+ const Ch* GetString() const { RAPIDJSON_ASSERT(IsString()); return ((flags_ & kInlineStrFlag) ? data_.ss.str : data_.s.str); }
+
+ //! Get the length of string.
+ /*! Since rapidjson permits "\\u0000" in the json string, strlen(v.GetString()) may not equal to v.GetStringLength().
+ */
+ SizeType GetStringLength() const { RAPIDJSON_ASSERT(IsString()); return ((flags_ & kInlineStrFlag) ? (data_.ss.GetLength()) : data_.s.length); }
+
+ //! Set this value as a string without copying source string.
+ /*! This version has better performance with supplied length, and also support string containing null character.
+ \param s source string pointer.
+ \param length The length of source string, excluding the trailing null terminator.
+ \return The value itself for fluent API.
+ \post IsString() == true && GetString() == s && GetStringLength() == length
+ \see SetString(StringRefType)
+ */
+ GenericValue& SetString(const Ch* s, SizeType length) { return SetString(StringRef(s, length)); }
+
+ //! Set this value as a string without copying source string.
+ /*! \param s source string reference
+ \return The value itself for fluent API.
+ \post IsString() == true && GetString() == s && GetStringLength() == s.length
+ */
+ GenericValue& SetString(StringRefType s) { this->~GenericValue(); SetStringRaw(s); return *this; }
+
+ //! Set this value as a string by copying from source string.
+ /*! This version has better performance with supplied length, and also support string containing null character.
+ \param s source string.
+ \param length The length of source string, excluding the trailing null terminator.
+ \param allocator Allocator for allocating copied buffer. Commonly use GenericDocument::GetAllocator().
+ \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; }
+
+ //! Set this value as a string by copying from source string.
+ /*! \param s source string.
+ \param allocator Allocator for allocating copied buffer. Commonly use GenericDocument::GetAllocator().
+ \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); }
+
+#if RAPIDJSON_HAS_STDSTRING
+ //! Set this value as a string by copying from source string.
+ /*! \param s source string.
+ \param allocator Allocator for allocating copied buffer. Commonly use GenericDocument::GetAllocator().
+ \return The value itself for fluent API.
+ \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(), s.size(), allocator); }
+#endif
+
+ //@}
+
+ //! Generate events of this value to a Handler.
+ /*! This function adopts the GoF visitor pattern.
+ Typical usage is to output this JSON value as JSON text via Writer, which is a Handler.
+ It can also be used to deep clone this value via GenericDocument, which is also a Handler.
+ \tparam Handler type of handler.
+ \param handler An object implementing concept Handler.
+ */
+ template <typename Handler>
+ bool Accept(Handler& handler) const {
+ switch(GetType()) {
+ case kNullType: return handler.Null();
+ case kFalseType: return handler.Bool(false);
+ case kTrueType: return handler.Bool(true);
+
+ case kObjectType:
+ if (!handler.StartObject())
+ return false;
+ for (ConstMemberIterator m = MemberBegin(); m != MemberEnd(); ++m) {
+ if (!handler.Key(m->name.GetString(), m->name.GetStringLength(), (m->name.flags_ & kCopyFlag) != 0))
+ return false;
+ if (!m->value.Accept(handler))
+ return false;
+ }
+ return handler.EndObject(data_.o.size);
+
+ case kArrayType:
+ if (!handler.StartArray())
+ return false;
+ for (GenericValue* v = data_.a.elements; v != data_.a.elements + data_.a.size; ++v)
+ if (!v->Accept(handler))
+ return false;
+ return handler.EndArray(data_.a.size);
+
+ case kStringType:
+ return handler.String(GetString(), GetStringLength(), (flags_ & kCopyFlag) != 0);
+
+ case kNumberType:
+ if (IsInt()) return handler.Int(data_.n.i.i);
+ else if (IsUint()) return handler.Uint(data_.n.u.u);
+ else if (IsInt64()) return handler.Int64(data_.n.i64);
+ else if (IsUint64()) return handler.Uint64(data_.n.u64);
+ else return handler.Double(data_.n.d);
+
+ default:
+ RAPIDJSON_ASSERT(false);
+ }
+ return false;
+ }
+
+private:
+ template <typename, typename> friend class GenericValue;
+ template <typename, typename, typename> friend class GenericDocument;
+
+ enum {
+ kBoolFlag = 0x100,
+ kNumberFlag = 0x200,
+ kIntFlag = 0x400,
+ kUintFlag = 0x800,
+ kInt64Flag = 0x1000,
+ kUint64Flag = 0x2000,
+ kDoubleFlag = 0x4000,
+ kStringFlag = 0x100000,
+ kCopyFlag = 0x200000,
+ kInlineStrFlag = 0x400000,
+
+ // Initial flags of different types.
+ kNullFlag = kNullType,
+ kTrueFlag = kTrueType | kBoolFlag,
+ kFalseFlag = kFalseType | kBoolFlag,
+ kNumberIntFlag = kNumberType | kNumberFlag | kIntFlag | kInt64Flag,
+ kNumberUintFlag = kNumberType | kNumberFlag | kUintFlag | kUint64Flag | kInt64Flag,
+ kNumberInt64Flag = kNumberType | kNumberFlag | kInt64Flag,
+ kNumberUint64Flag = kNumberType | kNumberFlag | kUint64Flag,
+ kNumberDoubleFlag = kNumberType | kNumberFlag | kDoubleFlag,
+ kNumberAnyFlag = kNumberType | kNumberFlag | kIntFlag | kInt64Flag | kUintFlag | kUint64Flag | kDoubleFlag,
+ kConstStringFlag = kStringType | kStringFlag,
+ kCopyStringFlag = kStringType | kStringFlag | kCopyFlag,
+ kShortStringFlag = kStringType | kStringFlag | kCopyFlag | kInlineStrFlag,
+ kObjectFlag = kObjectType,
+ kArrayFlag = kArrayType,
+
+ kTypeMask = 0xFF // bitwise-and with mask of 0xFF can be optimized by compiler
+ };
+
+ static const SizeType kDefaultArrayCapacity = 16;
+ static const SizeType kDefaultObjectCapacity = 16;
+
+ struct String {
+ const Ch* str;
+ SizeType length;
+ unsigned hashcode; //!< reserved
+ }; // 12 bytes in 32-bit mode, 16 bytes in 64-bit mode
+
+ // implementation detail: ShortString can represent zero-terminated strings up to MaxSize chars
+ // (excluding the terminating zero) and store a value to determine the length of the contained
+ // string in the last character str[LenPos] by storing "MaxSize - length" there. If the string
+ // to store has the maximal length of MaxSize then str[LenPos] will be 0 and therefore act as
+ // the string terminator as well. For getting the string length back from that value just use
+ // "MaxSize - str[LenPos]".
+ // This allows to store 11-chars strings in 32-bit mode and 15-chars strings in 64-bit mode
+ // inline (for `UTF8`-encoded strings).
+ struct ShortString {
+ enum { MaxChars = sizeof(String) / sizeof(Ch), MaxSize = MaxChars - 1, LenPos = MaxSize };
+ Ch str[MaxChars];
+
+ inline static bool Usable(SizeType len) { return (MaxSize >= len); }
+ inline void SetLength(SizeType len) { str[LenPos] = (Ch)(MaxSize - len); }
+ inline SizeType GetLength() const { return (SizeType)(MaxSize - str[LenPos]); }
+ }; // at most as many bytes as "String" above => 12 bytes in 32-bit mode, 16 bytes in 64-bit mode
+
+ // By using proper binary layout, retrieval of different integer types do not need conversions.
+ union Number {
+#if RAPIDJSON_ENDIAN == RAPIDJSON_LITTLEENDIAN
+ struct I {
+ int i;
+ char padding[4];
+ }i;
+ struct U {
+ unsigned u;
+ char padding2[4];
+ }u;
+#else
+ struct I {
+ char padding[4];
+ int i;
+ }i;
+ struct U {
+ char padding2[4];
+ unsigned u;
+ }u;
+#endif
+ int64_t i64;
+ uint64_t u64;
+ double d;
+ }; // 8 bytes
+
+ struct Object {
+ Member* members;
+ SizeType size;
+ SizeType capacity;
+ }; // 12 bytes in 32-bit mode, 16 bytes in 64-bit mode
+
+ struct Array {
+ GenericValue* elements;
+ SizeType size;
+ SizeType capacity;
+ }; // 12 bytes in 32-bit mode, 16 bytes in 64-bit mode
+
+ union Data {
+ String s;
+ ShortString ss;
+ Number n;
+ Object o;
+ Array a;
+ }; // 12 bytes in 32-bit mode, 16 bytes in 64-bit mode
+
+ // Initialize this value as array with initial data, without calling destructor.
+ void SetArrayRaw(GenericValue* values, SizeType count, Allocator& allocator) {
+ flags_ = kArrayFlag;
+ data_.a.elements = (GenericValue*)allocator.Malloc(count * sizeof(GenericValue));
+ std::memcpy(data_.a.elements, values, count * sizeof(GenericValue));
+ data_.a.size = data_.a.capacity = count;
+ }
+
+ //! Initialize this value as object with initial data, without calling destructor.
+ void SetObjectRaw(Member* members, SizeType count, Allocator& allocator) {
+ flags_ = kObjectFlag;
+ data_.o.members = (Member*)allocator.Malloc(count * sizeof(Member));
+ std::memcpy(data_.o.members, members, count * sizeof(Member));
+ data_.o.size = data_.o.capacity = count;
+ }
+
+ //! Initialize this value as constant string, without calling destructor.
+ void SetStringRaw(StringRefType s) RAPIDJSON_NOEXCEPT {
+ flags_ = kConstStringFlag;
+ data_.s.str = s;
+ data_.s.length = s.length;
+ }
+
+ //! Initialize this value as copy string with initial data, without calling destructor.
+ void SetStringRaw(StringRefType s, Allocator& allocator) {
+ Ch* str = NULL;
+ if(ShortString::Usable(s.length)) {
+ flags_ = kShortStringFlag;
+ data_.ss.SetLength(s.length);
+ str = data_.ss.str;
+ } else {
+ flags_ = kCopyStringFlag;
+ data_.s.length = s.length;
+ str = (Ch *)allocator.Malloc((s.length + 1) * sizeof(Ch));
+ data_.s.str = str;
+ }
+ std::memcpy(str, s, s.length * sizeof(Ch));
+ str[s.length] = '\0';
+ }
+
+ //! Assignment without calling destructor
+ void RawAssign(GenericValue& rhs) RAPIDJSON_NOEXCEPT {
+ data_ = rhs.data_;
+ flags_ = rhs.flags_;
+ rhs.flags_ = kNullFlag;
+ }
+
+ template <typename SourceAllocator>
+ bool StringEqual(const GenericValue<Encoding, SourceAllocator>& rhs) const {
+ RAPIDJSON_ASSERT(IsString());
+ RAPIDJSON_ASSERT(rhs.IsString());
+
+ const SizeType len1 = GetStringLength();
+ const SizeType len2 = rhs.GetStringLength();
+ if(len1 != len2) { return false; }
+
+ const Ch* const str1 = GetString();
+ const Ch* const str2 = rhs.GetString();
+ if(str1 == str2) { return true; } // fast path for constant string
+
+ return (std::memcmp(str1, str2, sizeof(Ch) * len1) == 0);
+ }
+
+ Data data_;
+ unsigned flags_;
+};
+
+//! GenericValue with UTF8 encoding
+typedef GenericValue<UTF8<> > Value;
+
+///////////////////////////////////////////////////////////////////////////////
+// GenericDocument
+
+//! A document for parsing JSON text as DOM.
+/*!
+ \note implements Handler concept
+ \tparam Encoding Encoding for both parsing and string storage.
+ \tparam Allocator Allocator for allocating memory for the DOM
+ \tparam StackAllocator Allocator for allocating memory for stack during parsing.
+ \warning Although GenericDocument inherits from GenericValue, the API does \b not provide any virtual functions, especially no virtual destructor. To avoid memory leaks, do not \c delete a GenericDocument object via a pointer to a GenericValue.
+*/
+template <typename Encoding, typename Allocator = MemoryPoolAllocator<>, typename StackAllocator = CrtAllocator>
+class GenericDocument : public GenericValue<Encoding, Allocator> {
+public:
+ typedef typename Encoding::Ch Ch; //!< Character type derived from Encoding.
+ typedef GenericValue<Encoding, Allocator> ValueType; //!< Value type of the document.
+ typedef Allocator AllocatorType; //!< Allocator type from template parameter.
+
+ //! Constructor
+ /*! \param allocator Optional allocator for allocating memory.
+ \param stackCapacity Optional initial capacity of stack in bytes.
+ \param stackAllocator Optional allocator for allocating memory for stack.
+ */
+ GenericDocument(Allocator* allocator = 0, size_t stackCapacity = kDefaultStackCapacity, StackAllocator* stackAllocator = 0) :
+ allocator_(allocator), ownAllocator_(0), stack_(stackAllocator, stackCapacity), parseResult_()
+ {
+ if (!allocator_)
+ ownAllocator_ = allocator_ = new Allocator();
+ }
+
+ ~GenericDocument() {
+ delete ownAllocator_;
+ }
+
+ //!@name Parse from stream
+ //!@{
+
+ //! Parse JSON text from an input stream (with Encoding conversion)
+ /*! \tparam parseFlags Combination of \ref ParseFlag.
+ \tparam SourceEncoding Encoding of input stream
+ \tparam InputStream Type of input stream, implementing Stream concept
+ \param is Input stream to be parsed.
+ \return The document itself for fluent API.
+ */
+ template <unsigned parseFlags, typename SourceEncoding, typename InputStream>
+ GenericDocument& ParseStream(InputStream& is) {
+ ValueType::SetNull(); // Remove existing root if exist
+ GenericReader<SourceEncoding, Encoding, Allocator> reader(&GetAllocator());
+ ClearStackOnExit scope(*this);
+ parseResult_ = reader.template Parse<parseFlags>(is, *this);
+ if (parseResult_) {
+ RAPIDJSON_ASSERT(stack_.GetSize() == sizeof(ValueType)); // Got one and only one root object
+ this->RawAssign(*stack_.template Pop<ValueType>(1)); // Add this-> to prevent issue 13.
+ }
+ return *this;
+ }
+
+ //! Parse JSON text from an input stream
+ /*! \tparam parseFlags Combination of \ref ParseFlag.
+ \tparam InputStream Type of input stream, implementing Stream concept
+ \param is Input stream to be parsed.
+ \return The document itself for fluent API.
+ */
+ template <unsigned parseFlags, typename InputStream>
+ GenericDocument& ParseStream(InputStream& is) {
+ return ParseStream<parseFlags,Encoding,InputStream>(is);
+ }
+
+ //! Parse JSON text from an input stream (with \ref kParseDefaultFlags)
+ /*! \tparam InputStream Type of input stream, implementing Stream concept
+ \param is Input stream to be parsed.
+ \return The document itself for fluent API.
+ */
+ template <typename InputStream>
+ GenericDocument& ParseStream(InputStream& is) {
+ return ParseStream<kParseDefaultFlags, Encoding, InputStream>(is);
+ }
+ //!@}
+
+ //!@name Parse in-place from mutable string
+ //!@{
+
+ //! Parse JSON text from a mutable string (with Encoding conversion)
+ /*! \tparam parseFlags Combination of \ref ParseFlag.
+ \tparam SourceEncoding Transcoding from input Encoding
+ \param str Mutable zero-terminated string to be parsed.
+ \return The document itself for fluent API.
+ */
+ template <unsigned parseFlags, typename SourceEncoding>
+ GenericDocument& ParseInsitu(Ch* str) {
+ GenericInsituStringStream<Encoding> s(str);
+ return ParseStream<parseFlags | kParseInsituFlag, SourceEncoding>(s);
+ }
+
+ //! Parse JSON text from a mutable string
+ /*! \tparam parseFlags Combination of \ref ParseFlag.
+ \param str Mutable zero-terminated string to be parsed.
+ \return The document itself for fluent API.
+ */
+ template <unsigned parseFlags>
+ GenericDocument& ParseInsitu(Ch* str) {
+ return ParseInsitu<parseFlags, Encoding>(str);
+ }
+
+ //! Parse JSON text from a mutable string (with \ref kParseDefaultFlags)
+ /*! \param str Mutable zero-terminated string to be parsed.
+ \return The document itself for fluent API.
+ */
+ GenericDocument& ParseInsitu(Ch* str) {
+ return ParseInsitu<kParseDefaultFlags, Encoding>(str);
+ }
+ //!@}
+
+ //!@name Parse from read-only string
+ //!@{
+
+ //! Parse JSON text from a read-only string (with Encoding conversion)
+ /*! \tparam parseFlags Combination of \ref ParseFlag (must not contain \ref kParseInsituFlag).
+ \tparam SourceEncoding Transcoding from input Encoding
+ \param str Read-only zero-terminated string to be parsed.
+ */
+ template <unsigned parseFlags, typename SourceEncoding>
+ GenericDocument& Parse(const Ch* str) {
+ RAPIDJSON_ASSERT(!(parseFlags & kParseInsituFlag));
+ GenericStringStream<SourceEncoding> s(str);
+ return ParseStream<parseFlags, SourceEncoding>(s);
+ }
+
+ //! Parse JSON text from a read-only string
+ /*! \tparam parseFlags Combination of \ref ParseFlag (must not contain \ref kParseInsituFlag).
+ \param str Read-only zero-terminated string to be parsed.
+ */
+ template <unsigned parseFlags>
+ GenericDocument& Parse(const Ch* str) {
+ return Parse<parseFlags, Encoding>(str);
+ }
+
+ //! Parse JSON text from a read-only string (with \ref kParseDefaultFlags)
+ /*! \param str Read-only zero-terminated string to be parsed.
+ */
+ GenericDocument& Parse(const Ch* str) {
+ return Parse<kParseDefaultFlags>(str);
+ }
+
+ GenericDocument& Parse(const Ch * str, size_t sz) {
+ const char* buf = (const char*) str;
+ size_t bufsz = sz * sizeof(Ch);
+ MemoryStream ms(buf, bufsz);
+ EncodedInputStream<Encoding, MemoryStream> is(ms);
+ ParseStream(is);
+ return *this;
+ }
+
+ //!@}
+
+ //!@name Handling parse errors
+ //!@{
+
+ //! Whether a parse error has occured in the last parsing.
+ bool HasParseError() const { return parseResult_.IsError(); }
+
+ //! Get the \ref ParseErrorCode of last parsing.
+ ParseErrorCode GetParseError() const { return parseResult_.Code(); }
+
+ //! Get the position of last parsing error in input, 0 otherwise.
+ size_t GetErrorOffset() const { return parseResult_.Offset(); }
+
+ //!@}
+
+ //! Get the allocator of this document.
+ Allocator& GetAllocator() { return *allocator_; }
+
+ //! Get the capacity of stack in bytes.
+ size_t GetStackCapacity() const { return stack_.GetCapacity(); }
+
+private:
+ // clear stack on any exit from ParseStream, e.g. due to exception
+ struct ClearStackOnExit {
+ explicit ClearStackOnExit(GenericDocument& d) : d_(d) {}
+ ~ClearStackOnExit() { d_.ClearStack(); }
+ private:
+ ClearStackOnExit(const ClearStackOnExit&);
+ ClearStackOnExit& operator=(const ClearStackOnExit&);
+ GenericDocument& d_;
+ };
+
+ // callers of the following private Handler functions
+ template <typename,typename,typename> friend class GenericReader; // for parsing
+ template <typename, typename> friend class GenericValue; // for deep copying
+
+ // Implementation of Handler
+ bool Null() { new (stack_.template Push<ValueType>()) ValueType(); return true; }
+ bool Bool(bool b) { new (stack_.template Push<ValueType>()) ValueType(b); return true; }
+ bool Int(int i) { new (stack_.template Push<ValueType>()) ValueType(i); return true; }
+ bool Uint(unsigned i) { new (stack_.template Push<ValueType>()) ValueType(i); return true; }
+ bool Int64(int64_t i) { new (stack_.template Push<ValueType>()) ValueType(i); return true; }
+ bool Uint64(uint64_t i) { new (stack_.template Push<ValueType>()) ValueType(i); return true; }
+ bool Double(double d) { new (stack_.template Push<ValueType>()) ValueType(d); return true; }
+
+ bool String(const Ch* str, SizeType length, bool copy) {
+ if (copy)
+ new (stack_.template Push<ValueType>()) ValueType(str, length, GetAllocator());
+ else
+ new (stack_.template Push<ValueType>()) ValueType(str, length);
+ return true;
+ }
+
+ bool StartObject() { new (stack_.template Push<ValueType>()) ValueType(kObjectType); return true; }
+
+ bool Key(const Ch* str, SizeType length, bool copy) { return String(str, length, copy); }
+
+ bool EndObject(SizeType memberCount) {
+ typename ValueType::Member* members = stack_.template Pop<typename ValueType::Member>(memberCount);
+ stack_.template Top<ValueType>()->SetObjectRaw(members, (SizeType)memberCount, GetAllocator());
+ return true;
+ }
+
+ bool StartArray() { new (stack_.template Push<ValueType>()) ValueType(kArrayType); return true; }
+
+ bool EndArray(SizeType elementCount) {
+ ValueType* elements = stack_.template Pop<ValueType>(elementCount);
+ stack_.template Top<ValueType>()->SetArrayRaw(elements, elementCount, GetAllocator());
+ return true;
+ }
+
+private:
+ //! Prohibit assignment
+ GenericDocument& operator=(const GenericDocument&);
+
+ void ClearStack() {
+ if (Allocator::kNeedFree)
+ while (stack_.GetSize() > 0) // Here assumes all elements in stack array are GenericValue (Member is actually 2 GenericValue objects)
+ (stack_.template Pop<ValueType>(1))->~ValueType();
+ else
+ stack_.Clear();
+ stack_.ShrinkToFit();
+ }
+
+ static const size_t kDefaultStackCapacity = 1024;
+ Allocator* allocator_;
+ Allocator* ownAllocator_;
+ internal::Stack<StackAllocator> stack_;
+ ParseResult parseResult_;
+};
+
+//! 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)
+{
+ GenericDocument<Encoding,Allocator> d(&allocator);
+ rhs.Accept(d);
+ RawAssign(*d.stack_.template Pop<GenericValue>(1));
+}
+
+} // namespace rapidjson
+
+#if defined(_MSC_VER) || defined(__GNUC__)
+RAPIDJSON_DIAG_POP
+#endif
+
+#endif // RAPIDJSON_DOCUMENT_H_
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