diff options
Diffstat (limited to 'src/WorldStorage/FastNBT.h')
-rw-r--r-- | src/WorldStorage/FastNBT.h | 120 |
1 files changed, 60 insertions, 60 deletions
diff --git a/src/WorldStorage/FastNBT.h b/src/WorldStorage/FastNBT.h index d9c388179..6fc8a9aea 100644 --- a/src/WorldStorage/FastNBT.h +++ b/src/WorldStorage/FastNBT.h @@ -28,21 +28,21 @@ It directly outputs a string containing the serialized NBT data. enum eTagType { - TAG_Min = 0, // The minimum value for a tag type - TAG_End = 0, - TAG_Byte = 1, - TAG_Short = 2, - TAG_Int = 3, - TAG_Long = 4, - TAG_Float = 5, - TAG_Double = 6, + TAG_Min = 0, // The minimum value for a tag type + TAG_End = 0, + TAG_Byte = 1, + TAG_Short = 2, + TAG_Int = 3, + TAG_Long = 4, + TAG_Float = 5, + TAG_Double = 6, TAG_ByteArray = 7, - TAG_String = 8, - TAG_List = 9, - TAG_Compound = 10, - TAG_IntArray = 11, - TAG_Max = 11, // The maximum value for a tag type -} ; + TAG_String = 8, + TAG_List = 9, + TAG_Compound = 10, + TAG_IntArray = 11, + TAG_Max = 11, // The maximum value for a tag type +}; @@ -56,8 +56,7 @@ Structure (all with the tree structure it describes) supports moving in memory ( */ struct cFastNBTTag { -public: - + public: eTagType m_Type; // The following members are indices into the data stream. m_DataLength == 0 if no data available @@ -102,7 +101,7 @@ public: m_LastChild(-1) { } -} ; +}; @@ -130,12 +129,10 @@ std::error_code make_error_code(eNBTParseError a_Err) noexcept; namespace std { - template <> - struct is_error_code_enum<eNBTParseError>: - public std::true_type - { - }; -} +template <> struct is_error_code_enum<eNBTParseError> : public std::true_type +{ +}; +} // namespace std @@ -143,15 +140,15 @@ namespace std /** Parses and contains the parsed data Also implements data accessor functions for tree traversal and value getters -The data pointer passed in the constructor is assumed to be valid throughout the object's life. Care must be taken not to initialize from a temporary. -The parser decomposes the input data into a tree of tags that is stored as an array of cFastNBTTag items, -and accessing the tree is done by using the array indices for tags. Each tag stores the indices for its parent, -first child, last child, prev sibling and next sibling, a value of -1 indicates that the indice is not valid. -Each primitive tag also stores the length of the contained data, in bytes. +The data pointer passed in the constructor is assumed to be valid throughout the object's life. Care must be taken not +to initialize from a temporary. The parser decomposes the input data into a tree of tags that is stored as an array of +cFastNBTTag items, and accessing the tree is done by using the array indices for tags. Each tag stores the indices for +its parent, first child, last child, prev sibling and next sibling, a value of -1 indicates that the indice is not +valid. Each primitive tag also stores the length of the contained data, in bytes. */ class cParsedNBT { -public: + public: cParsedNBT(ContiguousByteBufferView a_Data); bool IsValid(void) const { return (m_Error == eNBTParseError::npSuccess); } @@ -166,10 +163,10 @@ public: int GetRoot(void) const { return 0; } /** Returns the first child of the specified tag, or -1 if none / not applicable. */ - int GetFirstChild (int a_Tag) const { return m_Tags[static_cast<size_t>(a_Tag)].m_FirstChild; } + int GetFirstChild(int a_Tag) const { return m_Tags[static_cast<size_t>(a_Tag)].m_FirstChild; } /** Returns the last child of the specified tag, or -1 if none / not applicable. */ - int GetLastChild (int a_Tag) const { return m_Tags[static_cast<size_t>(a_Tag)].m_LastChild; } + int GetLastChild(int a_Tag) const { return m_Tags[static_cast<size_t>(a_Tag)].m_LastChild; } /** Returns the next sibling of the specified tag, or -1 if none. */ int GetNextSibling(int a_Tag) const { return m_Tags[static_cast<size_t>(a_Tag)].m_NextSibling; } @@ -213,7 +210,9 @@ public: eTagType GetChildrenType(int a_Tag) const { ASSERT(m_Tags[static_cast<size_t>(a_Tag)].m_Type == TAG_List); - return (m_Tags[static_cast<size_t>(a_Tag)].m_FirstChild < 0) ? TAG_End : m_Tags[static_cast<size_t>(m_Tags[static_cast<size_t>(a_Tag)].m_FirstChild)].m_Type; + return (m_Tags[static_cast<size_t>(a_Tag)].m_FirstChild < 0) + ? TAG_End + : m_Tags[static_cast<size_t>(m_Tags[static_cast<size_t>(a_Tag)].m_FirstChild)].m_Type; } /** Returns the value stored in a Byte tag. Not valid for any other tag type. */ @@ -277,45 +276,47 @@ public: } /** Returns the value stored in a String tag. Not valid for any other tag type. */ - inline AString GetString(int a_Tag) const - { - return AString(GetStringView(a_Tag)); - } + inline AString GetString(int a_Tag) const { return AString(GetStringView(a_Tag)); } /** Returns the value stored in a String tag. Not valid for any other tag type. */ inline std::string_view GetStringView(int a_Tag) const { ASSERT(m_Tags[static_cast<size_t>(a_Tag)].m_Type == TAG_String); - return { reinterpret_cast<const char *>(GetData(a_Tag)), GetDataLength(a_Tag) }; + return {reinterpret_cast<const char *>(GetData(a_Tag)), GetDataLength(a_Tag)}; } /** Returns the tag's name. For tags that are not named, returns an empty string. */ inline AString GetName(int a_Tag) const { AString res; - res.assign(reinterpret_cast<const char *>(m_Data.data()) + m_Tags[static_cast<size_t>(a_Tag)].m_NameStart, static_cast<size_t>(m_Tags[static_cast<size_t>(a_Tag)].m_NameLength)); + res.assign( + reinterpret_cast<const char *>(m_Data.data()) + m_Tags[static_cast<size_t>(a_Tag)].m_NameStart, + static_cast<size_t>(m_Tags[static_cast<size_t>(a_Tag)].m_NameLength) + ); return res; } -protected: - + protected: ContiguousByteBufferView m_Data; std::vector<cFastNBTTag> m_Tags; - eNBTParseError m_Error; // npSuccess if parsing succeeded + eNBTParseError m_Error; // npSuccess if parsing succeeded // Used while parsing: size_t m_Pos; eNBTParseError Parse(void); - eNBTParseError ReadString(size_t & a_StringStart, size_t & a_StringLen); // Reads a simple string (2 bytes length + data), sets the string descriptors + eNBTParseError ReadString( + size_t & a_StringStart, + size_t & a_StringLen + ); // Reads a simple string (2 bytes length + data), sets the string descriptors eNBTParseError ReadCompound(void); // Reads the latest tag as a compound eNBTParseError ReadList(eTagType a_ChildrenType); // Reads the latest tag as a list of items of type a_ChildrenType - eNBTParseError ReadTag(void); // Reads the latest tag, depending on its m_Type setting + eNBTParseError ReadTag(void); // Reads the latest tag, depending on its m_Type setting /** Returns the minimum size, in bytes, of the specified tag type. Used for sanity-checking. */ static size_t GetMinTagSize(eTagType a_TagType); -} ; +}; @@ -323,7 +324,7 @@ protected: class cFastNBTWriter { -public: + public: cFastNBTWriter(const AString & a_RootTagName = ""); void BeginCompound(const AString & a_Name); @@ -332,16 +333,16 @@ public: void BeginList(const AString & a_Name, eTagType a_ChildrenType); void EndList(void); - void AddByte (const AString & a_Name, unsigned char a_Value); - void AddShort (const AString & a_Name, Int16 a_Value); - void AddInt (const AString & a_Name, Int32 a_Value); - void AddLong (const AString & a_Name, Int64 a_Value); - void AddFloat (const AString & a_Name, float a_Value); - void AddDouble (const AString & a_Name, double a_Value); - void AddString (const AString & a_Name, std::string_view a_Value); + void AddByte(const AString & a_Name, unsigned char a_Value); + void AddShort(const AString & a_Name, Int16 a_Value); + void AddInt(const AString & a_Name, Int32 a_Value); + void AddLong(const AString & a_Name, Int64 a_Value); + void AddFloat(const AString & a_Name, float a_Value); + void AddDouble(const AString & a_Name, double a_Value); + void AddString(const AString & a_Name, std::string_view a_Value); void AddByteArray(const AString & a_Name, const char * a_Value, size_t a_NumElements); void AddByteArray(const AString & a_Name, size_t a_NumElements, unsigned char a_Value); - void AddIntArray (const AString & a_Name, const Int32 * a_Value, size_t a_NumElements); + void AddIntArray(const AString & a_Name, const Int32 * a_Value, size_t a_NumElements); void AddByteArray(const AString & a_Name, const AString & a_Value) { @@ -352,21 +353,20 @@ public: void Finish(void); -protected: - + protected: struct sParent { - int m_Type; // TAG_Compound or TAG_List - int m_Pos; // for TAG_List, the position of the list count + int m_Type; // TAG_Compound or TAG_List + int m_Pos; // for TAG_List, the position of the list count int m_Count; // for TAG_List, the element count eTagType m_ItemType; // for TAG_List, the element type - } ; + }; static const int MAX_STACK = 50; // Highly doubtful that an NBT would be constructed this many levels deep // These two fields emulate a stack. A raw array is used due to speed issues - no reallocations are allowed. sParent m_Stack[MAX_STACK]; - int m_CurrentStack; + int m_CurrentStack; ContiguousByteBuffer m_Result; @@ -391,4 +391,4 @@ protected: m_Stack[m_CurrentStack].m_Count++; } } -} ; +}; |