diff options
Diffstat (limited to 'external/rapidjson/pointer.h')
-rw-r--r-- | external/rapidjson/pointer.h | 78 |
1 files changed, 55 insertions, 23 deletions
diff --git a/external/rapidjson/pointer.h b/external/rapidjson/pointer.h index 7519490dc..0206ac1c8 100644 --- a/external/rapidjson/pointer.h +++ b/external/rapidjson/pointer.h @@ -23,6 +23,11 @@ RAPIDJSON_DIAG_PUSH RAPIDJSON_DIAG_OFF(switch-enum) #endif +#ifdef _MSC_VER +RAPIDJSON_DIAG_PUSH +RAPIDJSON_DIAG_OFF(4512) // assignment operator could not be generated +#endif + RAPIDJSON_NAMESPACE_BEGIN static const SizeType kPointerInvalidIndex = ~SizeType(0); //!< Represents an invalid index in GenericPointer::Token @@ -101,7 +106,7 @@ public: //@{ //! Default constructor. - GenericPointer() : allocator_(), ownAllocator_(), nameBuffer_(), tokens_(), tokenCount_(), parseErrorOffset_(), parseErrorCode_(kPointerParseErrorNone) {} + GenericPointer(Allocator* allocator = 0) : allocator_(allocator), ownAllocator_(), nameBuffer_(), tokens_(), tokenCount_(), parseErrorOffset_(), parseErrorCode_(kPointerParseErrorNone) {} //! Constructor that parses a string or URI fragment representation. /*! @@ -160,7 +165,7 @@ 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_(), ownAllocator_(), nameBuffer_(), tokens_(), tokenCount_(), parseErrorOffset_(), parseErrorCode_(kPointerParseErrorNone) { + GenericPointer(const GenericPointer& rhs, Allocator* allocator = 0) : allocator_(allocator), ownAllocator_(), nameBuffer_(), tokens_(), tokenCount_(), parseErrorOffset_(), parseErrorCode_(kPointerParseErrorNone) { *this = rhs; } @@ -305,6 +310,9 @@ public: //@} + //! Get the allocator of this pointer. + Allocator& GetAllocator() { return *allocator_; } + //!@name Tokens //@{ @@ -457,9 +465,18 @@ public: //! Query a value in a subtree. /*! \param root Root value of a DOM sub-tree to be resolved. It can be any value other than document root. + \param unresolvedTokenIndex If the pointer cannot resolve a token in the pointer, this parameter can obtain the index of unresolved token. \return Pointer to the value if it can be resolved. Otherwise null. + + \note + There are only 3 situations when a value cannot be resolved: + 1. A value in the path is not an array nor object. + 2. An object value does not contain the token. + 3. A token is out of range of an array value. + + Use unresolvedTokenIndex to retrieve the token index. */ - ValueType* Get(ValueType& root) const { + ValueType* Get(ValueType& root, size_t* unresolvedTokenIndex = 0) const { RAPIDJSON_ASSERT(IsValid()); ValueType* v = &root; for (const Token *t = tokens_; t != tokens_ + tokenCount_; ++t) { @@ -468,18 +485,23 @@ public: { typename ValueType::MemberIterator m = v->FindMember(GenericStringRef<Ch>(t->name, t->length)); if (m == v->MemberEnd()) - return 0; + break; v = &m->value; } - break; + continue; case kArrayType: if (t->index == kPointerInvalidIndex || t->index >= v->Size()) - return 0; + break; v = &((*v)[t->index]); - break; + continue; default: - return 0; + break; } + + // Error: unresolved token + if (unresolvedTokenIndex) + *unresolvedTokenIndex = static_cast<size_t>(t - tokens_); + return 0; } return v; } @@ -489,7 +511,9 @@ public: \param root Root value of a DOM sub-tree to be resolved. It can be any value other than document root. \return Pointer to the value if it can be resolved. Otherwise null. */ - const ValueType* Get(const ValueType& root) const { return Get(const_cast<ValueType&>(root)); } + const ValueType* Get(const ValueType& root, size_t* unresolvedTokenIndex = 0) const { + return Get(const_cast<ValueType&>(root), unresolvedTokenIndex); + } //@} @@ -743,8 +767,12 @@ private: tokenCount_ = rhs.tokenCount_ + extraToken; tokens_ = static_cast<Token *>(allocator_->Malloc(tokenCount_ * sizeof(Token) + (nameBufferSize + extraNameBufferSize) * sizeof(Ch))); nameBuffer_ = reinterpret_cast<Ch *>(tokens_ + tokenCount_); - std::memcpy(tokens_, rhs.tokens_, rhs.tokenCount_ * sizeof(Token)); - std::memcpy(nameBuffer_, rhs.nameBuffer_, nameBufferSize * sizeof(Ch)); + if (rhs.tokenCount_ > 0) { + std::memcpy(tokens_, rhs.tokens_, rhs.tokenCount_ * sizeof(Token)); + } + if (nameBufferSize > 0) { + std::memcpy(nameBuffer_, rhs.nameBuffer_, nameBufferSize * sizeof(Ch)); + } // Adjust pointers to name buffer std::ptrdiff_t diff = nameBuffer_ - rhs.nameBuffer_; @@ -968,11 +996,11 @@ private: src_++; Ch c = 0; for (int j = 0; j < 2; j++) { - c <<= 4; + c = static_cast<Ch>(c << 4); Ch h = *src_; - if (h >= '0' && h <= '9') c += h - '0'; - else if (h >= 'A' && h <= 'F') c += h - 'A' + 10; - else if (h >= 'a' && h <= 'f') c += h - 'a' + 10; + if (h >= '0' && h <= '9') c = static_cast<Ch>(c + h - '0'); + else if (h >= 'A' && h <= 'F') c = static_cast<Ch>(c + h - 'A' + 10); + else if (h >= 'a' && h <= 'f') c = static_cast<Ch>(c + h - 'a' + 10); else { valid_ = false; return 0; @@ -1050,23 +1078,23 @@ typename DocumentType::ValueType& CreateValueByPointer(DocumentType& document, c ////////////////////////////////////////////////////////////////////////////// template <typename T> -typename T::ValueType* GetValueByPointer(T& root, const GenericPointer<typename T::ValueType>& pointer) { - return pointer.Get(root); +typename T::ValueType* GetValueByPointer(T& root, const GenericPointer<typename T::ValueType>& pointer, size_t* unresolvedTokenIndex = 0) { + return pointer.Get(root, unresolvedTokenIndex); } template <typename T> -const typename T::ValueType* GetValueByPointer(const T& root, const GenericPointer<typename T::ValueType>& pointer) { - return pointer.Get(root); +const typename T::ValueType* GetValueByPointer(const T& root, const GenericPointer<typename T::ValueType>& pointer, size_t* unresolvedTokenIndex = 0) { + return pointer.Get(root, unresolvedTokenIndex); } template <typename T, typename CharType, size_t N> -typename T::ValueType* GetValueByPointer(T& root, const CharType (&source)[N]) { - return GenericPointer<typename T::ValueType>(source, N - 1).Get(root); +typename T::ValueType* GetValueByPointer(T& root, const CharType (&source)[N], size_t* unresolvedTokenIndex = 0) { + return GenericPointer<typename T::ValueType>(source, N - 1).Get(root, unresolvedTokenIndex); } template <typename T, typename CharType, size_t N> -const typename T::ValueType* GetValueByPointer(const T& root, const CharType(&source)[N]) { - return GenericPointer<typename T::ValueType>(source, N - 1).Get(root); +const typename T::ValueType* GetValueByPointer(const T& root, const CharType(&source)[N], size_t* unresolvedTokenIndex = 0) { + return GenericPointer<typename T::ValueType>(source, N - 1).Get(root, unresolvedTokenIndex); } ////////////////////////////////////////////////////////////////////////////// @@ -1323,4 +1351,8 @@ RAPIDJSON_NAMESPACE_END RAPIDJSON_DIAG_POP #endif +#ifdef _MSC_VER +RAPIDJSON_DIAG_POP +#endif + #endif // RAPIDJSON_POINTER_H_ |