mirror of
https://github.com/danieleteti/delphimvcframework.git
synced 2024-11-15 15:55:54 +01:00
8321 lines
226 KiB
ObjectPascal
8321 lines
226 KiB
ObjectPascal
(*****************************************************************************
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The MIT License (MIT)
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Copyright (c) 2015-2016 Andreas Hausladen
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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*****************************************************************************)
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{$A8,B-,C+,E-,F-,G+,H+,I+,J-,K-,M-,N-,O+,P+,Q-,R-,S-,T-,U-,V+,W-,X+,Z1}
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{$WARN WIDECHAR_REDUCED OFF} // All sets only use ASCII chars (<=#127) and the compiler generates the >=#128 check itself
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{$STRINGCHECKS OFF} // It only slows down Delphi strings, doesn't help C++Builder migration and is finally gone in XE+
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{$WARN SYMBOL_DEPRECATED OFF} // for StrLen/StrLComp
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{$POINTERMATH ON}
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unit JsonDataObjects;
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{$IFDEF VER200}
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// Delphi 2009's ErrorInsight parser uses the CompilerVersion's memory address instead of 20.0, failing all the
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// IF CompilerVersion compiler directives
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{$DEFINE CPUX86}
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{$ELSE}
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{$IF CompilerVersion >= 24.0} // XE3 or newer
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{$LEGACYIFEND ON}
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{$IFEND}
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{$IF CompilerVersion >= 23.0}
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{$DEFINE HAS_UNIT_SCOPE}
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{$DEFINE HAS_RETURN_ADDRESS}
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{$IFEND}
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{$IF CompilerVersion <= 22.0} // XE or older
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{$DEFINE CPUX86}
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{$IFEND}
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{$ENDIF VER200}
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{$IFDEF NEXTGEN}
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{$IF CompilerVersion >= 31.0} // 10.1 Berlin or newer
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{$DEFINE SUPPORTS_UTF8STRING} // Delphi 10.1 Berlin supports UTF8String for mobile compilers
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{$IFEND}
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{$ELSE}
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{$DEFINE SUPPORTS_UTF8STRING}
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{$ENDIF}
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{$IFDEF CPUX64}
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{$IFNDEF LINUX64} // Linux 64 compiler doesn't support ASM for x64 code => LLVM
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{$DEFINE ASMSUPPORT}
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{$ENDIF ~LINUX64}
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{$ENDIF CPUX64}
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{$IFDEF CPUX86}
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{$DEFINE ASMSUPPORT}
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{$ENDIF CPUX86}
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{$IFDEF EXTERNALLINKER} // implicates LLVM
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{$UNDEF ASMSUPPORT}
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{$ENDIF EXTERNALLINKER}
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// Enables the progress callback feature
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{$DEFINE SUPPORT_PROGRESS}
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// Sanity checks all array index accesses and raise an EListError exception.
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{$DEFINE CHECK_ARRAY_INDEX}
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// JSON allows the slash to be escaped. This is only necessary if you plan to put the JSON string
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// into a <script>-Tag because then "</" can't be used and must be escaped to "<\/". This switch
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// enables the special handling for "</" but makes the parser slightly slower.
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{.$DEFINE ESCAPE_SLASH_AFTER_LESSTHAN}
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// When parsing a JSON string the pair names are interned to reduce the memory foot print. This
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// slightly slows down the parser but saves a lot of memory if the JSON string contains repeating
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// pair names. The interning uses a hashset to store the strings.
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{$DEFINE USE_STRINGINTERN_FOR_NAMES}
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// Use an optimized NewInstance implementation. It skips the initialization of the interface table.
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// and seals the TJsonArray and TJsonObject classes because it isn't safe to derive from them.
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{$DEFINE USE_FAST_NEWINSTANCE}
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//{$IF CompilerVersion < 28.0} // XE6 or older
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// The XE7 compiler is broken. It doesn't collapse duplicate string literals anymore. (RSP-10015)
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// But if the string literals are used in loops this optimization still helps.
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// Optimizes the following pattern:
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// O['Name'][MyPropStr]
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// O['Name']['MyProp'].
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// where the second O['Name'] is handled very fast by caching the pointer to the 'Name' string literal.
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{$DEFINE USE_LAST_NAME_STRING_LITERAL_CACHE}
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//{$IFEND}
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// When parsing the JSON string, the UStrAsg calls are skipped for internal strings what eliminates
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// the CPU locks for those string assignments.
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{$DEFINE USE_FAST_STRASG_FOR_INTERNAL_STRINGS}
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{$IFDEF AUTOREFCOUNT}
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// Delphi's ARC is slow (RSP-9712). This switch enables a faster ARC handling and even skips memory
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// barrier were possible.
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{$DEFINE USE_FAST_AUTOREFCOUNT}
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{$ENDIF AUTOREFCOUNT}
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{$IFDEF MSWINDOWS}
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// When adding JSON object properties with string literals, the string literals are stored directly
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// in the "Name" field instead of using UStrAsg that creates a new heap string. This improves the
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// performance as no string is copied and it slighly reduces the memory usage.
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// The string literals are only used if they are in the main instance or the DLL that contains the
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// JsonDataObjects unit. Other string literals are copied using UStrAsg because unloading the DLL
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// that holds them would cause access violations.
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// This has no effect when parsing JSON strings because then there are no string literals.
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{$DEFINE USE_NAME_STRING_LITERAL}
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// Reading a large file >64 MB from a network drive in Windows 2003 Server or older can lead to
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// an INSUFFICIENT RESOURCES error. By enabling this switch, large files are read in 20 MB blocks.
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{$DEFINE WORKAROUND_NETWORK_FILE_INSUFFICIENT_RESOURCES}
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// If defined, the TzSpecificLocalTimeToSystemTime is imported with GetProcAddress and if it is
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// not available (Windows 2000) an alternative implementation is used.
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{$DEFINE SUPPORT_WINDOWS2000}
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{$ENDIF MSWINDOWS}
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interface
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uses
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{$IFDEF HAS_UNIT_SCOPE}
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System.SysUtils, System.Classes;
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{$ELSE}
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SysUtils, Classes;
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{$ENDIF HAS_UNIT_SCOPE}
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{$HPPEMIT '#pragma link "Jsondataobjects"'}
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type
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TJsonBaseObject = class;
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TJsonObject = class;
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TJsonArray = class;
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{$IFDEF NEXTGEN}
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// Mobile compilers have PAnsiChar but it is hidden and then published under a new name. This alias
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// allows us to remove some IFDEFs.
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PAnsiChar = MarshaledAString;
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{$ENDIF NEXTGEN}
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EJsonException = class(Exception);
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EJsonCastException = class(EJsonException);
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EJsonPathException = class(EJsonException);
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EJsonParserException = class(EJsonException)
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private
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FColumn: NativeInt;
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FPosition: NativeInt;
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FLineNum: NativeInt;
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public
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constructor CreateResFmt(ResStringRec: PResStringRec; const Args: array of const; ALineNum, AColumn, APosition: NativeInt);
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constructor CreateRes(ResStringRec: PResStringRec; ALineNum, AColumn, APosition: NativeInt);
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property LineNum: NativeInt read FLineNum; // base 1
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property Column: NativeInt read FColumn; // base 1
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property Position: NativeInt read FPosition; // base 0 Utf8Char/WideChar index
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end;
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{$IFDEF SUPPORT_PROGRESS}
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TJsonReaderProgressProc = procedure(Data: Pointer; Percentage: Integer; Position, Size: NativeInt);
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PJsonReaderProgressRec = ^TJsonReaderProgressRec;
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TJsonReaderProgressRec = record
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Data: Pointer; // used for the first Progress() parameter
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Threshold: NativeInt; // 0: Call only if percentage changed; greater than 0: call after n processed bytes
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Progress: TJsonReaderProgressProc;
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function Init(AProgress: TJsonReaderProgressProc; AData: Pointer = nil; AThreshold: NativeInt = 0): PJsonReaderProgressRec;
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end;
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{$ENDIF SUPPORT_PROGRESS}
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// TJsonOutputWriter is used to write the JSON data to a string, stream or TStrings in a compact
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// or human readable format.
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TJsonOutputWriter = record
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private type
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TLastType = (ltInitial, ltIndent, ltUnindent, ltIntro, ltValue, ltSeparator);
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PJsonStringArray = ^TJsonStringArray;
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TJsonStringArray = array[0..MaxInt div SizeOf(string) - 1] of string;
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PJsonStringBuilder = ^TJsonStringBuilder;
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TJsonStringBuilder = record
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private
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FData: PChar;
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FCapacity: Integer;
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FLen: Integer;
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procedure Grow(MinLen: Integer);
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public
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procedure Init;
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procedure Done;
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procedure DoneConvertToString(var S: string);
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function FlushToBytes(var Bytes: PByte; var Size: NativeInt; Encoding: TEncoding): NativeInt;
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procedure FlushToMemoryStream(Stream: TMemoryStream; Encoding: TEncoding);
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procedure FlushToStringBuffer(var Buffer: TJsonStringBuilder);
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procedure FlushToString(var S: string);
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function Append(const S: string): PJsonStringBuilder; overload;
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procedure Append(P: PChar; Len: Integer); overload;
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function Append2(const S1: string; S2: PChar; S2Len: Integer): PJsonStringBuilder; overload;
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procedure Append2(Ch1: Char; Ch2: Char); overload;
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procedure Append3(Ch1: Char; const S2, S3: string); overload;
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procedure Append3(Ch1: Char; const S2: string; Ch3: Char); overload; inline;
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procedure Append3(Ch1: Char; const P2: PChar; P2Len: Integer; Ch3: Char); overload;
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property Len: Integer read FLen;
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property Data: PChar read FData;
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end;
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private
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FLastType: TLastType;
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FCompact: Boolean;
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FStringBuffer: TJsonStringBuilder;
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FLines: TStrings;
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FLastLine: TJsonStringBuilder;
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FStreamEncodingBuffer: PByte;
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FStreamEncodingBufferLen: NativeInt;
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FStream: TStream; // used when writing to a stream
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FEncoding: TEncoding; // used when writing to a stream
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FIndents: PJsonStringArray; // buffer for line indention strings
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FIndentsLen: Integer;
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FIndent: Integer; // current indention level
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procedure StreamFlushPossible; inline; // checks if StreamFlush must be called
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procedure StreamFlush; // writes the buffer to the stream
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procedure ExpandIndents;
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procedure AppendLine(AppendOn: TLastType; const S: string); overload; inline;
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procedure AppendLine(AppendOn: TLastType; P: PChar; Len: Integer); overload; inline;
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procedure FlushLastLine;
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private // unit private
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procedure Init(ACompact: Boolean; AStream: TStream; AEncoding: TEncoding; ALines: TStrings);
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function Done: string;
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procedure StreamDone;
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procedure LinesDone;
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procedure Indent(const S: string);
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procedure Unindent(const S: string);
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procedure AppendIntro(P: PChar; Len: Integer);
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procedure AppendValue(const S: string); overload;
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procedure AppendValue(P: PChar; Len: Integer); overload;
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procedure AppendStrValue(P: PChar; Len: Integer);
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procedure AppendSeparator(const S: string);
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procedure FreeIndents;
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end;
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TJsonDataType = (
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jdtNone, jdtString, jdtInt, jdtLong, jdtULong, jdtFloat, jdtDateTime, jdtUtcDateTime, jdtBool, jdtArray, jdtObject
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);
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// TJsonDataValue holds the actual value
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PJsonDataValue = ^TJsonDataValue;
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TJsonDataValue = packed record
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private type
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TJsonDataValueRec = record
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case TJsonDataType of
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jdtNone: (P: PChar); // helps when debugging
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jdtString: (S: Pointer); // We manage the string ourself. Delphi doesn't allow "string" in a
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// variant record and if we have no string, we don't need to clean
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// it up, anyway.
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jdtInt: (I: Integer);
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jdtLong: (L: Int64);
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jdtULong: (U: UInt64);
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jdtFloat: (F: Double);
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jdtDateTime, jdtUtcDateTime: (D: TDateTime);
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jdtBool: (B: Boolean);
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jdtArray: (A: Pointer); // owned by TJsonDataValue
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jdtObject: (O: Pointer); // owned by TJsonDataValue
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end;
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private
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FValue: TJsonDataValueRec;
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FTyp: TJsonDataType;
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function GetValue: string;
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function GetIntValue: Integer;
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function GetLongValue: Int64;
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function GetULongValue: UInt64;
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function GetFloatValue: Double;
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function GetDateTimeValue: TDateTime;
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function GetUtcDateTimeValue: TDateTime;
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function GetBoolValue: Boolean;
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function GetArrayValue: TJsonArray;
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function GetObjectValue: TJsonObject;
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function GetVariantValue: Variant;
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procedure SetValue(const AValue: string);
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procedure SetIntValue(const AValue: Integer);
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procedure SetLongValue(const AValue: Int64);
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procedure SetULongValue(const AValue: UInt64);
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procedure SetFloatValue(const AValue: Double);
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procedure SetDateTimeValue(const AValue: TDateTime);
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procedure SetUtcDateTimeValue(const AValue: TDateTime);
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procedure SetBoolValue(const AValue: Boolean);
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procedure SetArrayValue(const AValue: TJsonArray);
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procedure SetObjectValue(const AValue: TJsonObject);
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procedure SetVariantValue(const AValue: Variant);
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procedure InternToJSON(var Writer: TJsonOutputWriter);
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procedure InternSetValue(const AValue: string); // skips the call to Clear()
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procedure InternSetValueTransfer(var AValue: string); // skips the call to Clear() and transfers the string without going through UStrAsg+UStrClr
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procedure InternSetArrayValue(const AValue: TJsonArray);
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procedure InternSetObjectValue(const AValue: TJsonObject);
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procedure Clear;
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procedure TypeCastError(ExpectedType: TJsonDataType);
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public
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function IsNull: Boolean;
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property Typ: TJsonDataType read FTyp;
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property Value: string read GetValue write SetValue;
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property IntValue: Integer read GetIntValue write SetIntValue;
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property LongValue: Int64 read GetLongValue write SetLongValue;
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property ULongValue: UInt64 read GetULongValue write SetULongValue;
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property FloatValue: Double read GetFloatValue write SetFloatValue;
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property DateTimeValue: TDateTime read GetDateTimeValue write SetDateTimeValue;
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property UtcDateTimeValue: TDateTime read GetUtcDateTimeValue write SetUtcDateTimeValue;
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property BoolValue: Boolean read GetBoolValue write SetBoolValue;
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property ArrayValue: TJsonArray read GetArrayValue write SetArrayValue;
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property ObjectValue: TJsonObject read GetObjectValue write SetObjectValue;
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property VariantValue: Variant read GetVariantValue write SetVariantValue;
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end;
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// TJsonDataValueHelper is used to implement the "easy access" functionality. It is
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// slightly slower than using the direct indexed properties.
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TJsonDataValueHelper = record
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private
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function GetValue: string; inline;
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function GetIntValue: Integer; inline;
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function GetLongValue: Int64; inline;
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function GetULongValue: UInt64; //inline; no implicit operator due to conflict with Int64
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function GetFloatValue: Double; inline;
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function GetDateTimeValue: TDateTime; inline;
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function GetUtcDateTimeValue: TDateTime;
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function GetBoolValue: Boolean; inline;
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function GetArrayValue: TJsonArray; inline;
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function GetObjectValue: TJsonObject; inline;
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function GetVariantValue: Variant; inline;
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procedure SetValue(const Value: string);
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procedure SetIntValue(const Value: Integer);
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procedure SetLongValue(const Value: Int64);
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procedure SetULongValue(const Value: UInt64);
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procedure SetFloatValue(const Value: Double);
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procedure SetDateTimeValue(const Value: TDateTime);
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procedure SetUtcDateTimeValue(const Value: TDateTime);
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procedure SetBoolValue(const Value: Boolean);
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procedure SetArrayValue(const Value: TJsonArray);
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procedure SetObjectValue(const Value: TJsonObject);
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procedure SetVariantValue(const Value: Variant);
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function GetArrayItem(Index: Integer): TJsonDataValueHelper; inline;
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function GetArrayCount: Integer; inline;
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function GetObjectString(const Name: string): string; inline;
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function GetObjectInt(const Name: string): Integer; inline;
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function GetObjectLong(const Name: string): Int64; inline;
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function GetObjectULong(const Name: string): UInt64; inline;
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function GetObjectFloat(const Name: string): Double; inline;
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function GetObjectDateTime(const Name: string): TDateTime; inline;
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function GetObjectUtcDateTime(const Name: string): TDateTime; inline;
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function GetObjectBool(const Name: string): Boolean; inline;
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function GetArray(const Name: string): TJsonArray; inline;
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{$IFDEF BCB}
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function GetObj(const Name: string): TJsonDataValueHelper; inline; // work around C++Builder Windows.h::GetObject macro
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{$ELSE}
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function GetObject(const Name: string): TJsonDataValueHelper; inline;
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{$ENDIF BCB}
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function GetObjectVariant(const Name: string): Variant; inline;
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procedure SetObjectString(const Name, Value: string); inline;
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procedure SetObjectInt(const Name: string; const Value: Integer); inline;
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procedure SetObjectLong(const Name: string; const Value: Int64); inline;
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procedure SetObjectULong(const Name: string; const Value: UInt64); inline;
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procedure SetObjectFloat(const Name: string; const Value: Double); inline;
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procedure SetObjectDateTime(const Name: string; const Value: TDateTime); inline;
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procedure SetObjectUtcDateTime(const Name: string; const Value: TDateTime); inline;
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procedure SetObjectBool(const Name: string; const Value: Boolean); inline;
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procedure SetArray(const Name: string; const Value: TJsonArray); inline;
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procedure SetObject(const Name: string; const Value: TJsonDataValueHelper); inline;
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procedure SetObjectVariant(const Name: string; const Value: Variant); inline;
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function GetObjectPath(const Name: string): TJsonDataValueHelper; inline;
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procedure SetObjectPath(const Name: string; const Value: TJsonDataValueHelper); inline;
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function GetTyp: TJsonDataType;
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procedure ResolveName;
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class procedure SetInternValue(Item: PJsonDataValue; const Value: TJsonDataValueHelper); static;
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public
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class operator Implicit(const Value: string): TJsonDataValueHelper; overload;
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class operator Implicit(const Value: TJsonDataValueHelper): string; overload;
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class operator Implicit(const Value: Integer): TJsonDataValueHelper; overload;
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class operator Implicit(const Value: TJsonDataValueHelper): Integer; overload;
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class operator Implicit(const Value: Int64): TJsonDataValueHelper; overload;
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class operator Implicit(const Value: TJsonDataValueHelper): Int64; overload;
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//class operator Implicit(const Value: UInt64): TJsonDataValueHelper; overload; conflicts with Int64 operator
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//class operator Implicit(const Value: TJsonDataValueHelper): UInt64; overload; conflicts with Int64 operator
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class operator Implicit(const Value: Double): TJsonDataValueHelper; overload;
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class operator Implicit(const Value: TJsonDataValueHelper): Double; overload;
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class operator Implicit(const Value: Extended): TJsonDataValueHelper; overload;
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class operator Implicit(const Value: TJsonDataValueHelper): Extended; overload;
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class operator Implicit(const Value: TDateTime): TJsonDataValueHelper; overload;
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class operator Implicit(const Value: TJsonDataValueHelper): TDateTime; overload;
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class operator Implicit(const Value: Boolean): TJsonDataValueHelper; overload;
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class operator Implicit(const Value: TJsonDataValueHelper): Boolean; overload;
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class operator Implicit(const Value: TJsonArray): TJsonDataValueHelper; overload;
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class operator Implicit(const Value: TJsonDataValueHelper): TJsonArray; overload;
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class operator Implicit(const Value: TJsonObject): TJsonDataValueHelper; overload;
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class operator Implicit(const Value: TJsonDataValueHelper): TJsonObject; overload;
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class operator Implicit(const Value: Pointer): TJsonDataValueHelper; overload;
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class operator Implicit(const Value: TJsonDataValueHelper): Variant; overload;
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class operator Implicit(const Value: Variant): TJsonDataValueHelper; overload;
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function IsNull: Boolean;
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property Typ: TJsonDataType read GetTyp;
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property Value: string read GetValue write SetValue;
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property IntValue: Integer read GetIntValue write SetIntValue;
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property LongValue: Int64 read GetLongValue write SetLongValue;
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property ULongValue: UInt64 read GetULongValue write SetULongValue;
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property FloatValue: Double read GetFloatValue write SetFloatValue;
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property DateTimeValue: TDateTime read GetDateTimeValue write SetDateTimeValue;
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property UtcDateTimeValue: TDateTime read GetUtcDateTimeValue write SetUtcDateTimeValue;
|
|
property BoolValue: Boolean read GetBoolValue write SetBoolValue;
|
|
property ArrayValue: TJsonArray read GetArrayValue write SetArrayValue;
|
|
property ObjectValue: TJsonObject read GetObjectValue write SetObjectValue;
|
|
property VariantValue: Variant read GetVariantValue write SetVariantValue;
|
|
|
|
// Access to array item count
|
|
property Count: Integer read GetArrayCount;
|
|
// Access to array items
|
|
property Items[Index: Integer]: TJsonDataValueHelper read GetArrayItem;
|
|
|
|
property S[const Name: string]: string read GetObjectString write SetObjectString; // returns '' if property doesn't exist, auto type-cast except for array/object
|
|
property I[const Name: string]: Integer read GetObjectInt write SetObjectInt; // returns 0 if property doesn't exist, auto type-cast except for array/object
|
|
property L[const Name: string]: Int64 read GetObjectLong write SetObjectLong; // returns 0 if property doesn't exist, auto type-cast except for array/object
|
|
property U[const Name: string]: UInt64 read GetObjectULong write SetObjectULong; // returns 0 if property doesn't exist, auto type-cast except for array/object
|
|
property F[const Name: string]: Double read GetObjectFloat write SetObjectFloat; // returns 0 if property doesn't exist, auto type-cast except for array/object
|
|
property D[const Name: string]: TDateTime read GetObjectDateTime write SetObjectDateTime; // returns 0 if property doesn't exist, auto type-cast except for array/object
|
|
property DUtc[const Name: string]: TDateTime read GetObjectUtcDateTime write SetObjectUtcDateTime; // returns 0 if property doesn't exist, auto type-cast except for array/object
|
|
property B[const Name: string]: Boolean read GetObjectBool write SetObjectBool; // returns false if property doesn't exist, auto type-cast with "<>'true'" and "<>0" except for array/object
|
|
// Used to auto create arrays
|
|
property A[const Name: string]: TJsonArray read GetArray write SetArray;
|
|
// Used to auto create objects and as default property where no Implicit operator matches
|
|
property O[const Name: string]: TJsonDataValueHelper read {$IFDEF BCB}GetObj{$ELSE}GetObject{$ENDIF} write SetObject; default;
|
|
property V[const Name: string]: Variant read GetObjectVariant write SetObjectVariant;
|
|
|
|
property Path[const Name: string]: TJsonDataValueHelper read GetObjectPath write SetObjectPath;
|
|
private
|
|
FData: record // hide the data from CodeInsight (bug in CodeInsight)
|
|
FIntern: PJsonDataValue;
|
|
FName: string;
|
|
FNameResolver: TJsonObject;
|
|
FValue: string; // must be managed by Delphi otherwise we have a memory leak
|
|
{$IFDEF AUTOREFCOUNT}
|
|
FObj: TJsonBaseObject;
|
|
{$ENDIF AUTOREFCOUNT}
|
|
case FTyp: TJsonDataType of
|
|
jdtInt: (FIntValue: Integer);
|
|
jdtLong: (FLongValue: Int64);
|
|
jdtULong: (FULongValue: UInt64);
|
|
jdtFloat: (FFloatValue: Double);
|
|
jdtDateTime, jdtUtcDateTime: (FDateTimeValue: TDateTime);
|
|
jdtBool: (FBoolValue: Boolean);
|
|
{$IFNDEF AUTOREFCOUNT}
|
|
jdtObject: (FObj: TJsonBaseObject); // used for both Array and Object
|
|
//jdtArray: (FArrayValue: TJsonArray);
|
|
//jdtObject: (FObjectValue: TJsonObject);
|
|
{$ENDIF AUTOREFCOUNT}
|
|
end;
|
|
end;
|
|
|
|
// TJsonBaseObject is the base class for TJsonArray and TJsonObject
|
|
TJsonBaseObject = class abstract(TObject)
|
|
private type
|
|
TWriterAppendMethod = procedure(P: PChar; Len: Integer) of object;
|
|
TStreamInfo = record
|
|
Buffer: PByte;
|
|
Size: NativeInt;
|
|
AllocationBase: Pointer;
|
|
end;
|
|
private
|
|
class procedure StrToJSONStr(const AppendMethod: TWriterAppendMethod; const S: string); static;
|
|
class procedure EscapeStrToJSONStr(F, P, EndP: PChar; const AppendMethod: TWriterAppendMethod); static;
|
|
class procedure DateTimeToJSONStr(const AppendMethod: TWriterAppendMethod; const Value: TDateTime); static;
|
|
class procedure UtcDateTimeToJSONStr(const AppendMethod: TWriterAppendMethod; const Value: TDateTime); static;
|
|
class procedure InternInitAndAssignItem(Dest, Source: PJsonDataValue); static;
|
|
class procedure GetStreamBytes(Stream: TStream; var Encoding: TEncoding; Utf8WithoutBOM: Boolean;
|
|
var StreamInfo: TStreamInfo); static;
|
|
|
|
{$IFDEF USE_FAST_AUTOREFCOUNT}
|
|
function ARCObjRelease: Integer; inline;
|
|
function ARCObjAddRef: Integer; inline;
|
|
{$ENDIF USE_FAST_AUTOREFCOUNT}
|
|
protected
|
|
procedure InternToJSON(var Writer: TJsonOutputWriter); virtual; abstract;
|
|
public
|
|
const DataTypeNames: array[TJsonDataType] of string = (
|
|
'null', 'String', 'Integer', 'Long', 'ULong', 'Float', 'DateTime', 'UTC-DateTime', 'Bool', 'Array', 'Object'
|
|
);
|
|
|
|
{$IFDEF USE_FAST_NEWINSTANCE}
|
|
class function NewInstance: TObject {$IFDEF AUTOREFCOUNT} unsafe {$ENDIF}; override;
|
|
{$ENDIF USE_FAST_NEWINSTANCE}
|
|
|
|
// ParseXxx returns nil if the JSON string is empty or consists only of white chars.
|
|
// If the JSON string starts with a "[" then the returned object is a TJsonArray otherwise
|
|
// it is a TJsonObject.
|
|
class function ParseUtf8(S: PAnsiChar; Len: Integer = -1{$IFDEF SUPPORT_PROGRESS}; AProgress: PJsonReaderProgressRec = nil{$ENDIF}): TJsonBaseObject; overload; static; inline;
|
|
{$IFDEF SUPPORTS_UTF8STRING}
|
|
class function ParseUtf8(const S: UTF8String{$IFDEF SUPPORT_PROGRESS}; AProgress: PJsonReaderProgressRec = nil{$ENDIF}): TJsonBaseObject; overload; static; inline;
|
|
{$ENDIF SUPPORTS_UTF8STRING}
|
|
class function ParseUtf8Bytes(S: PByte; Len: Integer = -1{$IFDEF SUPPORT_PROGRESS}; AProgress: PJsonReaderProgressRec = nil{$ENDIF}): TJsonBaseObject; static;
|
|
class function Parse(S: PWideChar; Len: Integer = -1{$IFDEF SUPPORT_PROGRESS}; AProgress: PJsonReaderProgressRec = nil{$ENDIF}): TJsonBaseObject; overload; static;
|
|
class function Parse(const S: UnicodeString{$IFDEF SUPPORT_PROGRESS}; AProgress: PJsonReaderProgressRec = nil{$ENDIF}): TJsonBaseObject; overload; static; inline;
|
|
class function Parse(const Bytes: TBytes; Encoding: TEncoding = nil; ByteIndex: Integer = 0;
|
|
ByteCount: Integer = -1{$IFDEF SUPPORT_PROGRESS}; AProgress: PJsonReaderProgressRec = nil{$ENDIF}): TJsonBaseObject; overload; static;
|
|
class function ParseFromFile(const FileName: string; Utf8WithoutBOM: Boolean = True{$IFDEF SUPPORT_PROGRESS}; AProgress: PJsonReaderProgressRec = nil{$ENDIF}): TJsonBaseObject; static;
|
|
class function ParseFromStream(Stream: TStream; Encoding: TEncoding = nil; Utf8WithoutBOM: Boolean = True{$IFDEF SUPPORT_PROGRESS}; AProgress: PJsonReaderProgressRec = nil{$ENDIF}): TJsonBaseObject; static;
|
|
|
|
procedure LoadFromFile(const FileName: string; Utf8WithoutBOM: Boolean = True{$IFDEF SUPPORT_PROGRESS}; AProgress: PJsonReaderProgressRec = nil{$ENDIF});
|
|
procedure LoadFromStream(Stream: TStream; Encoding: TEncoding = nil; Utf8WithoutBOM: Boolean = True{$IFDEF SUPPORT_PROGRESS}; AProgress: PJsonReaderProgressRec = nil{$ENDIF});
|
|
procedure SaveToFile(const FileName: string; Compact: Boolean = True; Encoding: TEncoding = nil; Utf8WithoutBOM: Boolean = True);
|
|
procedure SaveToStream(Stream: TStream; Compact: Boolean = True; Encoding: TEncoding = nil; Utf8WithoutBOM: Boolean = True);
|
|
procedure SaveToLines(Lines: TStrings);
|
|
|
|
// FromXxxJSON() raises an EJsonParserException if you try to parse an array JSON string into a
|
|
// TJsonObject or a object JSON string into a TJsonArray.
|
|
{$IFDEF SUPPORTS_UTF8STRING}
|
|
procedure FromUtf8JSON(const S: UTF8String{$IFDEF SUPPORT_PROGRESS}; AProgress: PJsonReaderProgressRec = nil{$ENDIF}); overload; inline;
|
|
{$ENDIF SUPPORTS_UTF8STRING}
|
|
procedure FromUtf8JSON(S: PAnsiChar; Len: Integer = -1{$IFDEF SUPPORT_PROGRESS}; AProgress: PJsonReaderProgressRec = nil{$ENDIF}); overload; inline;
|
|
procedure FromUtf8JSON(S: PByte; Len: Integer = -1{$IFDEF SUPPORT_PROGRESS}; AProgress: PJsonReaderProgressRec = nil{$ENDIF}); overload;
|
|
procedure FromJSON(const S: UnicodeString{$IFDEF SUPPORT_PROGRESS}; AProgress: PJsonReaderProgressRec = nil{$ENDIF}); overload;
|
|
procedure FromJSON(S: PWideChar; Len: Integer = -1{$IFDEF SUPPORT_PROGRESS}; AProgress: PJsonReaderProgressRec = nil{$ENDIF}); overload;
|
|
|
|
function ToJSON(Compact: Boolean = True): string;
|
|
{$IFDEF SUPPORTS_UTF8STRING}
|
|
function ToUtf8JSON(Compact: Boolean = True): UTF8String; overload;
|
|
{$ENDIF SUPPORTS_UTF8STRING}
|
|
procedure ToUtf8JSON(var Bytes: TBytes; Compact: Boolean = True); {$IFDEF SUPPORTS_UTF8STRING}overload;{$ENDIF}
|
|
// ToString() returns a compact JSON string
|
|
function ToString: string; override;
|
|
|
|
function Clone: TJsonBaseObject;
|
|
|
|
class function JSONToDateTime(const Value: string; ConvertToLocalTime: Boolean = True): TDateTime; static;
|
|
class function DateTimeToJSON(const Value: TDateTime; UseUtcTime: Boolean): string; static;
|
|
class function UtcDateTimeToJSON(const UtcDateTime: TDateTime): string; static;
|
|
end;
|
|
|
|
PJsonDataValueArray = ^TJsonDataValueArray;
|
|
TJsonDataValueArray = array[0..MaxInt div SizeOf(TJsonDataValue) - 1] of TJsonDataValue;
|
|
|
|
TJsonArrayEnumerator = record
|
|
private
|
|
FIndex: Integer;
|
|
FArray: TJsonArray;
|
|
public
|
|
constructor Create(AArray: TJsonArray);
|
|
|
|
function GetCurrent: TJsonDataValueHelper; inline;
|
|
function MoveNext: Boolean;
|
|
property Current: TJsonDataValueHelper read GetCurrent;
|
|
end;
|
|
|
|
// TJsonArray hold a JSON array and manages the array elements.
|
|
TJsonArray = class {$IFDEF USE_FAST_NEWINSTANCE}sealed{$ENDIF}(TJsonBaseObject)
|
|
private
|
|
FItems: PJsonDataValueArray;
|
|
FCapacity: Integer;
|
|
FCount: Integer;
|
|
function GetString(Index: Integer): string; inline;
|
|
function GetInt(Index: Integer): Integer; inline;
|
|
function GetLong(Index: Integer): Int64; inline;
|
|
function GetULong(Index: Integer): UInt64; inline;
|
|
function GetFloat(Index: Integer): Double; inline;
|
|
function GetDateTime(Index: Integer): TDateTime; inline;
|
|
function GetUtcDateTime(Index: Integer): TDateTime; inline;
|
|
function GetBool(Index: Integer): Boolean; inline;
|
|
function GetArray(Index: Integer): TJsonArray; inline;
|
|
{$IFDEF BCB}
|
|
function GetObj(Index: Integer): TJsonObject; inline;
|
|
{$ELSE}
|
|
function GetObject(Index: Integer): TJsonObject; inline;
|
|
{$ENDIF BCB}
|
|
function GetVariant(Index: Integer): Variant; inline;
|
|
|
|
procedure SetString(Index: Integer; const Value: string); inline;
|
|
procedure SetInt(Index: Integer; const Value: Integer); inline;
|
|
procedure SetLong(Index: Integer; const Value: Int64); inline;
|
|
procedure SetULong(Index: Integer; const Value: UInt64); inline;
|
|
procedure SetFloat(Index: Integer; const Value: Double); inline;
|
|
procedure SetDateTime(Index: Integer; const Value: TDateTime); inline;
|
|
procedure SetUtcDateTime(Index: Integer; const Value: TDateTime); inline;
|
|
procedure SetBool(Index: Integer; const Value: Boolean); inline;
|
|
procedure SetArray(Index: Integer; const Value: TJsonArray); inline;
|
|
procedure SetObject(Index: Integer; const Value: TJsonObject); inline;
|
|
procedure SetVariant(Index: Integer; const Value: Variant); inline;
|
|
|
|
function GetItem(Index: Integer): PJsonDataValue; inline;
|
|
function GetType(Index: Integer): TJsonDataType; inline;
|
|
function GetValue(Index: Integer): TJsonDataValueHelper;
|
|
|
|
procedure SetValue(Index: Integer; const Value: TJsonDataValueHelper);
|
|
function AddItem: PJsonDataValue;
|
|
function InsertItem(Index: Integer): PJsonDataValue;
|
|
|
|
procedure Grow;
|
|
procedure InternApplyCapacity; inline;
|
|
procedure SetCapacity(const Value: Integer);
|
|
procedure SetCount(const Value: Integer);
|
|
protected
|
|
procedure InternToJSON(var Writer: TJsonOutputWriter); override;
|
|
class procedure RaiseListError(Index: Integer); static;
|
|
public
|
|
destructor Destroy; override;
|
|
|
|
procedure Clear;
|
|
procedure Delete(Index: Integer);
|
|
// Extract removes the object/array from the array and transfers the ownership to the caller.
|
|
function Extract(Index: Integer): TJsonBaseObject;
|
|
function ExtractArray(Index: Integer): TJsonArray;
|
|
function ExtractObject(Index: Integer): TJsonObject;
|
|
procedure Assign(ASource: TJsonArray);
|
|
function Clone: TJsonArray;
|
|
|
|
procedure Add(const AValue: string); overload;
|
|
procedure Add(const AValue: Integer); overload;
|
|
procedure Add(const AValue: Int64); overload;
|
|
procedure Add(const AValue: UInt64); overload;
|
|
procedure Add(const AValue: Double); overload;
|
|
procedure Add(const AValue: TDateTime); overload;
|
|
procedure AddUtcDateTime(const AValue: TDateTime);
|
|
procedure Add(const AValue: Boolean); overload;
|
|
procedure Add(const AValue: TJsonArray); overload;
|
|
procedure Add(const AValue: TJsonObject); overload;
|
|
procedure Add(const AValue: Variant); overload;
|
|
function AddArray: TJsonArray;
|
|
function AddObject: TJsonObject; overload;
|
|
procedure AddObject(const Value: TJsonObject); overload; inline; // makes it easier to add "null"
|
|
|
|
procedure Insert(Index: Integer; const AValue: string); overload;
|
|
procedure Insert(Index: Integer; const AValue: Integer); overload;
|
|
procedure Insert(Index: Integer; const AValue: Int64); overload;
|
|
procedure Insert(Index: Integer; const AValue: UInt64); overload;
|
|
procedure Insert(Index: Integer; const AValue: Double); overload;
|
|
procedure Insert(Index: Integer; const AValue: TDateTime); overload;
|
|
procedure InsertUtcDateTime(Index: Integer; const AValue: TDateTime);
|
|
procedure Insert(Index: Integer; const AValue: Boolean); overload;
|
|
procedure Insert(Index: Integer; const AValue: TJsonArray); overload;
|
|
procedure Insert(Index: Integer; const AValue: TJsonObject); overload;
|
|
procedure Insert(Index: Integer; const AValue: Variant); overload;
|
|
function InsertArray(Index: Integer): TJsonArray;
|
|
function InsertObject(Index: Integer): TJsonObject; overload;
|
|
procedure InsertObject(Index: Integer; const Value: TJsonObject); overload; inline; // makes it easier to insert "null"
|
|
|
|
function GetEnumerator: TJsonArrayEnumerator;
|
|
function IsNull(Index: Integer): Boolean;
|
|
|
|
property Types[Index: Integer]: TJsonDataType read GetType;
|
|
property Values[Index: Integer]: TJsonDataValueHelper read GetValue write SetValue; default;
|
|
|
|
// Short names
|
|
property S[Index: Integer]: string read GetString write SetString;
|
|
property I[Index: Integer]: Integer read GetInt write SetInt;
|
|
property L[Index: Integer]: Int64 read GetLong write SetLong;
|
|
property U[Index: Integer]: UInt64 read GetULong write SetULong;
|
|
property F[Index: Integer]: Double read GetFloat write SetFloat;
|
|
property D[Index: Integer]: TDateTime read GetDateTime write SetDateTime;
|
|
property DUtc[Index: Integer]: TDateTime read GetUtcDateTime write SetUtcDateTime;
|
|
property B[Index: Integer]: Boolean read GetBool write SetBool;
|
|
property A[Index: Integer]: TJsonArray read GetArray write SetArray;
|
|
property O[Index: Integer]: TJsonObject read {$IFDEF BCB}GetObj{$ELSE}GetObject{$ENDIF} write SetObject;
|
|
property V[Index: Integer]: Variant read GetVariant write SetVariant;
|
|
|
|
property Items[Index: Integer]: PJsonDataValue read GetItem;
|
|
property Count: Integer read FCount write SetCount;
|
|
property Capacity: Integer read FCapacity write SetCapacity;
|
|
end;
|
|
|
|
TJsonNameValuePair = record
|
|
Name: string;
|
|
Value: TJsonDataValueHelper;
|
|
end;
|
|
|
|
TJsonObjectEnumerator = record
|
|
private
|
|
FIndex: Integer;
|
|
FObject: TJsonObject;
|
|
public
|
|
constructor Create(AObject: TJsonObject);
|
|
|
|
function GetCurrent: TJsonNameValuePair; inline;
|
|
function MoveNext: Boolean;
|
|
property Current: TJsonNameValuePair read GetCurrent;
|
|
end;
|
|
|
|
// TJsonObject hold a JSON object and manages the JSON object properties
|
|
TJsonObject = class {$IFDEF USE_FAST_NEWINSTANCE}sealed{$ENDIF}(TJsonBaseObject)
|
|
private type
|
|
PJsonStringArray = ^TJsonStringArray;
|
|
TJsonStringArray = array[0..MaxInt div SizeOf(string) - 1] of string;
|
|
private
|
|
FItems: PJsonDataValueArray;
|
|
FNames: PJsonStringArray;
|
|
FCapacity: Integer;
|
|
FCount: Integer;
|
|
{$IFDEF USE_LAST_NAME_STRING_LITERAL_CACHE}
|
|
FLastValueItem: PJsonDataValue;
|
|
FLastValueItemNamePtr: Pointer;
|
|
procedure UpdateLastValueItem(const Name: string; Item: PJsonDataValue);
|
|
{$ENDIF USE_LAST_NAME_STRING_LITERAL_CACHE}
|
|
function FindItem(const Name: string; var Item: PJsonDataValue): Boolean;
|
|
function RequireItem(const Name: string): PJsonDataValue;
|
|
|
|
function GetString(const Name: string): string;
|
|
function GetBool(const Name: string): Boolean;
|
|
function GetInt(const Name: string): Integer;
|
|
function GetLong(const Name: string): Int64;
|
|
function GetULong(const Name: string): UInt64;
|
|
function GetFloat(const Name: string): Double;
|
|
function GetDateTime(const Name: string): TDateTime;
|
|
function GetUtcDateTime(const Name: string): TDateTime;
|
|
{$IFDEF BCB}
|
|
function GetObj(const Name: string): TJsonObject;
|
|
{$ELSE}
|
|
function GetObject(const Name: string): TJsonObject;
|
|
{$ENDIF BCB}
|
|
function GetArray(const Name: string): TJsonArray;
|
|
procedure SetString(const Name, Value: string);
|
|
procedure SetBool(const Name: string; const Value: Boolean);
|
|
procedure SetInt(const Name: string; const Value: Integer);
|
|
procedure SetLong(const Name: string; const Value: Int64);
|
|
procedure SetULong(const Name: string; const Value: UInt64);
|
|
procedure SetFloat(const Name: string; const Value: Double);
|
|
procedure SetDateTime(const Name: string; const Value: TDateTime);
|
|
procedure SetUtcDateTime(const Name: string; const Value: TDateTime);
|
|
procedure SetObject(const Name: string; const Value: TJsonObject);
|
|
procedure SetArray(const Name: string; const Value: TJsonArray);
|
|
|
|
function GetType(const Name: string): TJsonDataType;
|
|
function GetName(Index: Integer): string; inline;
|
|
function GetItem(Index: Integer): PJsonDataValue; inline;
|
|
procedure SetValue(const Name: string; const Value: TJsonDataValueHelper);
|
|
function GetValue(const Name: string): TJsonDataValueHelper;
|
|
|
|
{ Used from the reader, never every use them outside the reader, they may crash your strings }
|
|
procedure InternAdd(var AName: string; const AValue: string); overload;
|
|
procedure InternAdd(var AName: string; const AValue: Integer); overload;
|
|
procedure InternAdd(var AName: string; const AValue: Int64); overload;
|
|
procedure InternAdd(var AName: string; const AValue: UInt64); overload;
|
|
procedure InternAdd(var AName: string; const AValue: Double); overload;
|
|
procedure InternAdd(var AName: string; const AValue: TDateTime); overload;
|
|
procedure InternAdd(var AName: string; const AValue: Boolean); overload;
|
|
procedure InternAdd(var AName: string; const AValue: TJsonArray); overload;
|
|
procedure InternAdd(var AName: string; const AValue: TJsonObject); overload;
|
|
function InternAddArray(var AName: string): TJsonArray;
|
|
function InternAddObject(var AName: string): TJsonObject;
|
|
|
|
function InternAddItem(var Name: string): PJsonDataValue;
|
|
function AddItem(const Name: string): PJsonDataValue;
|
|
|
|
procedure Grow;
|
|
procedure InternApplyCapacity;
|
|
procedure SetCapacity(const Value: Integer);
|
|
function GetPath(const NamePath: string): TJsonDataValueHelper;
|
|
procedure SetPath(const NamePath: string; const Value: TJsonDataValueHelper);
|
|
function IndexOfPChar(S: PChar; Len: Integer): Integer;
|
|
procedure PathError(P, EndP: PChar);
|
|
procedure PathNullError(P, EndP: PChar);
|
|
procedure PathIndexError(P, EndP: PChar; Count: Integer);
|
|
protected
|
|
procedure InternToJSON(var Writer: TJsonOutputWriter); override;
|
|
function FindCaseInsensitiveItem(const ACaseInsensitiveName: string): PJsonDataValue;
|
|
public
|
|
destructor Destroy; override;
|
|
procedure Assign(ASource: TJsonObject);
|
|
function Clone: TJsonObject;
|
|
|
|
// ToSimpleObject() maps the JSON object properties to the Delphi object by using the object's
|
|
// TypeInfo.
|
|
// The object's class must be compiled with the $M+ compiler switch or derive from TPersistent.
|
|
procedure ToSimpleObject(AObject: TObject; ACaseSensitive: Boolean = True);
|
|
// FromSimpleObject() clears the JSON object and adds the Delphi object's properties.
|
|
// The object's class must be compiled with the $M+ compiler switch or derive from TPersistent.
|
|
procedure FromSimpleObject(AObject: TObject; ALowerCamelCase: Boolean = False);
|
|
|
|
procedure Clear;
|
|
procedure Remove(const Name: string);
|
|
procedure Delete(Index: Integer);
|
|
function IndexOf(const Name: string): Integer;
|
|
function Contains(const Name: string): Boolean;
|
|
// Extract removes the object/array from the object and transfers the ownership to the caller.
|
|
function Extract(const Name: string): TJsonBaseObject;
|
|
function ExtractArray(const Name: string): TJsonArray;
|
|
function ExtractObject(const Name: string): TJsonObject;
|
|
|
|
function GetEnumerator: TJsonObjectEnumerator;
|
|
function IsNull(const Name: string): Boolean;
|
|
|
|
property Types[const Name: string]: TJsonDataType read GetType;
|
|
property Values[const Name: string]: TJsonDataValueHelper read GetValue write SetValue; default;
|
|
|
|
// Short names
|
|
property S[const Name: string]: string read GetString write SetString; // returns '' if property doesn't exist, auto type-cast except for array/object
|
|
property I[const Name: string]: Integer read GetInt write SetInt; // returns 0 if property doesn't exist, auto type-cast except for array/object
|
|
property L[const Name: string]: Int64 read GetLong write SetLong; // returns 0 if property doesn't exist, auto type-cast except for array/object
|
|
property U[const Name: string]: UInt64 read GetULong write SetULong; // returns 0 if property doesn't exist, auto type-cast except for array/object
|
|
property F[const Name: string]: Double read GetFloat write SetFloat; // returns 0 if property doesn't exist, auto type-cast except for array/object
|
|
property D[const Name: string]: TDateTime read GetDateTime write SetDateTime; // returns 0 if property doesn't exist, auto type-cast except for array/object
|
|
property DUtc[const Name: string]: TDateTime read GetUtcDateTime write SetUtcDateTime; // returns 0 if property doesn't exist, auto type-cast except for array/object
|
|
property B[const Name: string]: Boolean read GetBool write SetBool; // returns false if property doesn't exist, auto type-cast with "<>'true'" and "<>0" except for array/object
|
|
property A[const Name: string]: TJsonArray read GetArray write SetArray; // auto creates array on first access
|
|
property O[const Name: string]: TJsonObject read {$IFDEF BCB}GetObj{$ELSE}GetObject{$ENDIF} write SetObject; // auto creates object on first access
|
|
|
|
property Path[const NamePath: string]: TJsonDataValueHelper read GetPath write SetPath;
|
|
|
|
// Indexed access to the named properties
|
|
property Names[Index: Integer]: string read GetName;
|
|
property Items[Index: Integer]: PJsonDataValue read GetItem;
|
|
property Count: Integer read FCount;
|
|
property Capacity: Integer read FCapacity write SetCapacity;
|
|
end;
|
|
|
|
TJsonSerializationConfig = record
|
|
LineBreak: string;
|
|
IndentChar: string;
|
|
UseUtcTime: Boolean;
|
|
NullConvertsToValueTypes: Boolean;
|
|
end;
|
|
|
|
// Rename classes because RTL classes have the same name
|
|
TJDOJsonBaseObject = TJsonBaseObject;
|
|
TJDOJsonObject = TJsonObject;
|
|
TJDOJsonArray = TJsonArray;
|
|
|
|
var
|
|
JsonSerializationConfig: TJsonSerializationConfig = ( // not thread-safe
|
|
LineBreak: #10;
|
|
IndentChar: #9;
|
|
UseUtcTime: True;
|
|
NullConvertsToValueTypes: False; // If True and an object is nil/null, a convertion to String, Int, Long, Float, DateTime, Boolean will return ''/0/False
|
|
);
|
|
|
|
implementation
|
|
|
|
uses
|
|
{$IFDEF HAS_UNIT_SCOPE}
|
|
{$IFDEF MSWINDOWS}
|
|
Winapi.Windows,
|
|
{$ELSE}
|
|
System.DateUtils,
|
|
{$ENDIF MSWINDOWS}
|
|
System.Variants, System.RTLConsts, System.TypInfo, System.Math, System.SysConst;
|
|
|
|
{$ELSE}
|
|
|
|
{$IFDEF MSWINDOWS}
|
|
Windows,
|
|
{$ELSE}
|
|
DateUtils,
|
|
{$ENDIF MSWINDOWS}
|
|
Variants, RTLConsts, TypInfo, Math, SysConst;
|
|
{$ENDIF HAS_UNIT_SCOPE}
|
|
|
|
{$IF SizeOf(LongWord) <> 4}
|
|
// Make LongWord on all platforms a UInt32.
|
|
type
|
|
LongWord = UInt32;
|
|
PLongWord = ^LongWord;
|
|
{$IFEND}
|
|
|
|
resourcestring
|
|
RsUnsupportedFileEncoding = 'File encoding is not supported';
|
|
RsUnexpectedEndOfFile = 'Unexpected end of file where %s was expected';
|
|
RsUnexpectedToken = 'Expected %s but found %s';
|
|
RsInvalidStringCharacter = 'Invalid character in string';
|
|
RsStringNotClosed = 'String not closed';
|
|
RsInvalidHexNumber = 'Invalid hex number "%s"';
|
|
RsTypeCastError = 'Cannot cast %s into %s';
|
|
RsMissingClassInfo = 'Class "%s" doesn''t have type information. {$M+} was not specified';
|
|
RsInvalidJsonPath = 'Invalid JSON path "%s"';
|
|
RsJsonPathContainsNullValue = 'JSON path contains null value ("%s")';
|
|
RsJsonPathIndexError = 'JSON path index out of bounds (%d) "%s"';
|
|
RsVarTypeNotSupported = 'VarType %d is not supported';
|
|
{$IFDEF USE_FAST_STRASG_FOR_INTERNAL_STRINGS}
|
|
{$IFDEF DEBUG}
|
|
//RsInternAsgStringUsageError = 'InternAsgString was called on a string literal';
|
|
{$ENDIF DEBUG}
|
|
{$ENDIF USE_FAST_STRASG_FOR_INTERNAL_STRINGS}
|
|
|
|
type
|
|
TJsonTokenKind = (
|
|
jtkEof, jtkInvalidSymbol,
|
|
jtkLBrace, jtkRBrace, jtkLBracket, jtkRBracket, jtkComma, jtkColon,
|
|
jtkIdent,
|
|
jtkValue, jtkString, jtkInt, jtkLong, jtkULong, jtkFloat, jtkTrue, jtkFalse, jtkNull
|
|
);
|
|
|
|
const
|
|
JsonTokenKindToStr: array[TJsonTokenKind] of string = (
|
|
'end of file', 'invalid symbol',
|
|
'"{"', '"}"', '"["', '"]"', '","', '":"',
|
|
'identifier',
|
|
'value', 'value', 'value', 'value', 'value', 'value', 'value', 'value', 'value'
|
|
);
|
|
|
|
Power10: array[0..18] of Double = (
|
|
1E0, 1E1, 1E2, 1E3, 1E4, 1E5, 1E6, 1E7, 1E8, 1E9,
|
|
1E10, 1E11, 1E12, 1E13, 1E14, 1E15, 1E16, 1E17, 1E18
|
|
);
|
|
|
|
// XE7 broke string literal collapsing
|
|
var
|
|
sTrue: string = 'true';
|
|
sFalse: string = 'false';
|
|
const
|
|
sNull = 'null';
|
|
sQuoteChar = '"';
|
|
|
|
{$IF not declared(varObject)}
|
|
varObject = $0049;
|
|
{$IFEND}
|
|
|
|
type
|
|
PStrRec = ^TStrRec;
|
|
TStrRec = packed record
|
|
{$IF defined(CPUX64) or defined(CPU64BITS)} // XE2-XE7 (CPUX64), XE8+ (CPU64BITS)
|
|
_Padding: Integer;
|
|
{$IFEND}
|
|
CodePage: Word;
|
|
ElemSize: Word;
|
|
RefCnt: Integer;
|
|
Length: Integer;
|
|
end;
|
|
|
|
// TEncodingStrictAccess gives us access to the strict protected functions which are much easier
|
|
// to use with TJsonStringBuilder than converting FData to a dynamic TCharArray.
|
|
TEncodingStrictAccess = class(TEncoding)
|
|
public
|
|
function GetByteCountEx(Chars: PChar; CharCount: Integer): Integer; inline;
|
|
function GetBytesEx(Chars: PChar; CharCount: Integer; Bytes: PByte; ByteCount: Integer): Integer; inline;
|
|
function GetCharCountEx(Bytes: PByte; ByteCount: Integer): Integer; inline;
|
|
function GetCharsEx(Bytes: PByte; ByteCount: Integer; Chars: PChar; CharCount: Integer): Integer; inline;
|
|
end;
|
|
|
|
{$IFDEF USE_STRINGINTERN_FOR_NAMES}
|
|
TStringIntern = record
|
|
private type
|
|
PJsonStringEntry = ^TJsonStringEntry;
|
|
TJsonStringEntry = record
|
|
Next: Integer;
|
|
Hash: Integer;
|
|
Name: string;
|
|
end;
|
|
|
|
PJsonStringEntryArray = ^TJsonStringEntryArray;
|
|
TJsonStringEntryArray = array[0..MaxInt div SizeOf(TJsonStringEntry) - 1] of TJsonStringEntry;
|
|
|
|
PJsonIntegerArray = ^TJsonIntegerArray;
|
|
TJsonIntegerArray = array[0..MaxInt div SizeOf(Integer) - 1] of Integer;
|
|
private
|
|
FStrings: PJsonStringEntryArray;
|
|
FBuckets: PJsonIntegerArray;
|
|
FCapacity: Integer;
|
|
FCount: Integer;
|
|
class function GetHash(const Name: string): Integer; static;
|
|
procedure Grow;
|
|
function Find(Hash: Integer; const S: string): Integer;
|
|
procedure InternAdd(AHash: Integer; const S: string);
|
|
public
|
|
procedure Init;
|
|
procedure Done;
|
|
procedure Intern(var S: string; var PropName: string);
|
|
end;
|
|
{$ENDIF USE_STRINGINTERN_FOR_NAMES}
|
|
|
|
TJsonToken = record
|
|
Kind: TJsonTokenKind;
|
|
S: string; // jtkIdent/jtkString
|
|
case Integer of
|
|
0: (I: Integer; HI: Integer);
|
|
1: (L: Int64);
|
|
2: (U: UInt64);
|
|
3: (F: Double);
|
|
end;
|
|
|
|
TJsonReader = class(TObject)
|
|
private
|
|
{$IFDEF USE_STRINGINTERN_FOR_NAMES}
|
|
FIdents: TStringIntern;
|
|
{$ENDIF USE_STRINGINTERN_FOR_NAMES}
|
|
FPropName: string;
|
|
procedure Accept(TokenKind: TJsonTokenKind);
|
|
procedure ParseObjectBody(const Data: TJsonObject);
|
|
procedure ParseObjectProperty(const Data: TJsonObject);
|
|
procedure ParseObjectPropertyValue(const Data: TJsonObject);
|
|
procedure ParseArrayBody(const Data: TJsonArray);
|
|
procedure ParseArrayPropertyValue(const Data: TJsonArray);
|
|
procedure AcceptFailed(TokenKind: TJsonTokenKind);
|
|
protected
|
|
FLook: TJsonToken;
|
|
FLineNum: Integer;
|
|
FStart: Pointer;
|
|
FLineStart: Pointer;
|
|
{$IFDEF SUPPORT_PROGRESS}
|
|
FLastProgressValue: NativeInt;
|
|
FSize: NativeInt;
|
|
FProgress: PJsonReaderProgressRec;
|
|
procedure CheckProgress(Position: Pointer);
|
|
{$ENDIF SUPPORT_PROGRESS}
|
|
function GetLineColumn: NativeInt;
|
|
function GetPosition: NativeInt;
|
|
function GetCharOffset(StartPos: Pointer): NativeInt; virtual; abstract;
|
|
function Next: Boolean; virtual; abstract;
|
|
|
|
class procedure InvalidStringCharacterError(const Reader: TJsonReader); static;
|
|
class procedure StringNotClosedError(const Reader: TJsonReader); static;
|
|
class procedure JSONStrToStr(P, EndP: PChar; FirstEscapeIndex: Integer; var S: string;
|
|
const Reader: TJsonReader); static;
|
|
class procedure JSONUtf8StrToStr(P, EndP: PByte; FirstEscapeIndex: Integer; var S: string;
|
|
const Reader: TJsonReader); static;
|
|
public
|
|
{$IFDEF USE_FAST_NEWINSTANCE}
|
|
class function NewInstance: TObject {$IFDEF AUTOREFCOUNT} unsafe {$ENDIF}; override;
|
|
procedure FreeInstance; override;
|
|
{$ENDIF USE_FAST_NEWINSTANCE}
|
|
|
|
constructor Create(AStart: Pointer{$IFDEF SUPPORT_PROGRESS}; ASize: NativeInt; AProgress: PJsonReaderProgressRec{$ENDIF});
|
|
destructor Destroy; override;
|
|
procedure Parse(Data: TJsonBaseObject);
|
|
end;
|
|
|
|
TUtf8JsonReader = class sealed(TJsonReader)
|
|
private
|
|
FText: PByte;
|
|
FTextEnd: PByte;
|
|
protected
|
|
function GetCharOffset(StartPos: Pointer): NativeInt; override; final;
|
|
function Next: Boolean; override; final;
|
|
// ARM optimization: Next() already has EndP in a local variable so don't use the slow indirect
|
|
// access to FTextEnd.
|
|
procedure LexString(P: PByte{$IFDEF CPUARM}; EndP: PByte{$ENDIF});
|
|
procedure LexNumber(P: PByte{$IFDEF CPUARM}; EndP: PByte{$ENDIF});
|
|
procedure LexIdent(P: PByte{$IFDEF CPUARM}; EndP: PByte{$ENDIF});
|
|
public
|
|
constructor Create(S: PByte; Len: NativeInt{$IFDEF SUPPORT_PROGRESS}; AProgress: PJsonReaderProgressRec{$ENDIF});
|
|
end;
|
|
|
|
TStringJsonReader = class sealed(TJsonReader)
|
|
private
|
|
FText: PChar;
|
|
FTextEnd: PChar;
|
|
protected
|
|
function GetCharOffset(StartPos: Pointer): NativeInt; override; final;
|
|
function Next: Boolean; override; final;
|
|
// ARM optimization: Next() already has EndP in a local variable so don't use the slow indirect
|
|
// access to FTextEnd.
|
|
procedure LexString(P: PChar{$IFDEF CPUARM}; EndP: PChar{$ENDIF});
|
|
procedure LexNumber(P: PChar{$IFDEF CPUARM}; EndP: PChar{$ENDIF});
|
|
procedure LexIdent(P: PChar{$IFDEF CPUARM}; EndP: PChar{$ENDIF});
|
|
public
|
|
constructor Create(S: PChar; Len: Integer{$IFDEF SUPPORT_PROGRESS}; AProgress: PJsonReaderProgressRec{$ENDIF});
|
|
end;
|
|
|
|
TMemoryStreamAccess = class(TMemoryStream);
|
|
|
|
{$IFDEF SUPPORTS_UTF8STRING}
|
|
TJsonUTF8StringStream = class(TMemoryStream)
|
|
private
|
|
FDataString: UTF8String;
|
|
protected
|
|
function Realloc(var NewCapacity: Longint): Pointer; override;
|
|
public
|
|
constructor Create;
|
|
property DataString: UTF8String read FDataString;
|
|
end;
|
|
{$ENDIF SUPPORTS_UTF8STRING}
|
|
|
|
TJsonBytesStream = class(TMemoryStream)
|
|
private
|
|
FBytes: TBytes;
|
|
protected
|
|
function Realloc(var NewCapacity: Longint): Pointer; override;
|
|
public
|
|
constructor Create;
|
|
property Bytes: TBytes read FBytes;
|
|
end;
|
|
|
|
var
|
|
JSONFormatSettings: TFormatSettings;
|
|
{$IFDEF USE_NAME_STRING_LITERAL}
|
|
JsonMemInfoInitialized: Boolean = False;
|
|
JsonMemInfoBlockStart: PByte = nil;
|
|
JsonMemInfoBlockEnd: PByte = nil;
|
|
JsonMemInfoMainBlockStart: PByte = nil;
|
|
JsonMemInfoMainBlockEnd: PByte = nil;
|
|
{$ENDIF USE_NAME_STRING_LITERAL}
|
|
|
|
{$IFDEF MSWINDOWS}
|
|
|
|
{$IFDEF SUPPORT_WINDOWS2000}
|
|
var
|
|
TzSpecificLocalTimeToSystemTime: function(lpTimeZoneInformation: PTimeZoneInformation;
|
|
var lpLocalTime, lpUniversalTime: TSystemTime): BOOL; stdcall;
|
|
|
|
function TzSpecificLocalTimeToSystemTimeWin2000(lpTimeZoneInformation: PTimeZoneInformation;
|
|
var lpLocalTime, lpUniversalTime: TSystemTime): BOOL; stdcall;
|
|
var
|
|
TimeZoneInfo: TTimeZoneInformation;
|
|
begin
|
|
if lpTimeZoneInformation <> nil then
|
|
TimeZoneInfo := lpTimeZoneInformation^
|
|
else
|
|
GetTimeZoneInformation(TimeZoneInfo);
|
|
|
|
// Reverse the bias so that SystemTimeToTzSpecificLocalTime becomes TzSpecificLocalTimeToSystemTime
|
|
TimeZoneInfo.Bias := -TimeZoneInfo.Bias;
|
|
TimeZoneInfo.StandardBias := -TimeZoneInfo.StandardBias;
|
|
TimeZoneInfo.DaylightBias := -TimeZoneInfo.DaylightBias;
|
|
|
|
Result := SystemTimeToTzSpecificLocalTime(@TimeZoneInfo, lpLocalTime, lpUniversalTime);
|
|
end;
|
|
{$ELSE}
|
|
function TzSpecificLocalTimeToSystemTime(lpTimeZoneInformation: PTimeZoneInformation;
|
|
var lpLocalTime, lpUniversalTime: TSystemTime): BOOL; stdcall;
|
|
external kernel32 name 'TzSpecificLocalTimeToSystemTime';
|
|
{$ENDIF SUPPORT_WINDOWS2000}
|
|
|
|
{$ENDIF MSWINDOWS}
|
|
|
|
{$IFDEF USE_NAME_STRING_LITERAL}
|
|
procedure InitializeJsonMemInfo;
|
|
var
|
|
MemInfo: TMemoryBasicInformation;
|
|
begin
|
|
JsonMemInfoInitialized := True;
|
|
if VirtualQuery(PByte(HInstance + $1000), MemInfo, SizeOf(MemInfo)) = SizeOf(MemInfo) then
|
|
begin
|
|
JsonMemInfoBlockStart := MemInfo.AllocationBase;
|
|
JsonMemInfoBlockEnd := JsonMemInfoBlockStart + MemInfo.RegionSize;
|
|
end;
|
|
if HInstance <> MainInstance then
|
|
begin
|
|
if VirtualQuery(PByte(MainInstance + $1000), MemInfo, SizeOf(MemInfo)) = SizeOf(MemInfo) then
|
|
begin
|
|
JsonMemInfoMainBlockStart := MemInfo.AllocationBase;
|
|
JsonMemInfoMainBlockEnd := JsonMemInfoMainBlockStart + MemInfo.RegionSize;
|
|
end;
|
|
end;
|
|
end;
|
|
{$ENDIF USE_NAME_STRING_LITERAL}
|
|
|
|
type
|
|
PDynArrayRec = ^TDynArrayRec;
|
|
TDynArrayRec = packed record
|
|
{$IF defined(CPUX64) or defined(CPU64BITS)} // XE2-XE7 (CPUX64), XE8+ (CPU64BITS)
|
|
_Padding: Integer;
|
|
{$IFEND}
|
|
RefCnt: Integer;
|
|
Length: NativeInt;
|
|
Data: record end;
|
|
end;
|
|
|
|
procedure ByteArraySetLengthUninit(var A: TBytes; Count: Integer);
|
|
var
|
|
P: PDynArrayRec;
|
|
begin
|
|
if A = nil then
|
|
begin
|
|
if Count > 0 then
|
|
begin
|
|
GetMem(Pointer(P), SizeOf(TDynArrayRec) + Count * SizeOf(Byte));
|
|
P.RefCnt := 1;
|
|
P.Length := Count;
|
|
Pointer(A) := @P.Data;
|
|
end;
|
|
end
|
|
else if Count <= 0 then
|
|
begin
|
|
P := PDynArrayRec(PByte(A) - SizeOf(TDynArrayRec));
|
|
//if InterlockedDecrement(P.RefCnt) = 0 then
|
|
Dec(P.RefCnt);
|
|
if P.RefCnt = 0 then
|
|
FreeMem(P);
|
|
Pointer(A) := nil;
|
|
end
|
|
else
|
|
begin
|
|
P := PDynArrayRec(PByte(A) - SizeOf(TDynArrayRec));
|
|
if P.RefCnt = 1 then
|
|
begin
|
|
ReallocMem(Pointer(P), SizeOf(TDynArrayRec) + Count * SizeOf(Byte));
|
|
P.Length := Count;
|
|
Pointer(A) := @P.Data;
|
|
end
|
|
else
|
|
begin
|
|
GetMem(Pointer(P), SizeOf(TDynArrayRec) + Count * SizeOf(Integer));
|
|
Move(A[0], P.Data, PDynArrayRec(PByte(A) - SizeOf(TDynArrayRec)).Length * SizeOf(Byte));
|
|
P.RefCnt := 1;
|
|
P.Length := Count;
|
|
Pointer(A) := @P.Data;
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
{ EJsonParserSyntaxException }
|
|
|
|
constructor EJsonParserException.CreateResFmt(ResStringRec: PResStringRec; const Args: array of const;
|
|
ALineNum, AColumn, APosition: NativeInt);
|
|
begin
|
|
inherited CreateResFmt(ResStringRec, Args);
|
|
FLineNum := ALineNum;
|
|
FColumn := AColumn;
|
|
FPosition := APosition;
|
|
if FLineNum > 0 then
|
|
Message := Format('%s (%d, %d)', [Message, FLineNum, FColumn]);
|
|
end;
|
|
|
|
constructor EJsonParserException.CreateRes(ResStringRec: PResStringRec; ALineNum, AColumn, APosition: NativeInt);
|
|
begin
|
|
inherited CreateRes(ResStringRec);
|
|
FLineNum := ALineNum;
|
|
FColumn := AColumn;
|
|
FPosition := APosition;
|
|
if FLineNum > 0 then
|
|
Message := Format('%s (%d, %d)', [Message, FLineNum, FColumn]);
|
|
end;
|
|
|
|
procedure ListError(Msg: PResStringRec; Data: Integer);
|
|
begin
|
|
raise EStringListError.CreateFmt(LoadResString(Msg), [Data])
|
|
{$IFDEF HAS_RETURN_ADDRESS} at ReturnAddress{$ENDIF};
|
|
end;
|
|
|
|
procedure ErrorNoMappingForUnicodeCharacter;
|
|
begin
|
|
{$IF not declared(SNoMappingForUnicodeCharacter)}
|
|
RaiseLastOSError;
|
|
{$ELSE}
|
|
raise EEncodingError.CreateRes(@SNoMappingForUnicodeCharacter)
|
|
{$IFDEF HAS_RETURN_ADDRESS} at ReturnAddress{$ENDIF};
|
|
{$IFEND}
|
|
end;
|
|
|
|
procedure ErrorUnsupportedVariantType(VarType: TVarType);
|
|
begin
|
|
raise EJsonCastException.CreateResFmt(@RsVarTypeNotSupported, [VarType]);
|
|
end;
|
|
|
|
{$IFDEF USE_NAME_STRING_LITERAL}
|
|
procedure AsgString(var Dest: string; const Source: string);
|
|
begin
|
|
if (Pointer(Source) <> nil) and (PInteger(@PByte(Source)[-8])^ = -1) and // string literal
|
|
(((PByte(Source) < JsonMemInfoBlockEnd) and (PByte(Source) >= JsonMemInfoBlockStart)) or
|
|
((PByte(Source) < JsonMemInfoMainBlockEnd) and (PByte(Source) >= JsonMemInfoMainBlockStart))) then
|
|
begin
|
|
// Save memory by just using the string literal but only if it is in the EXE's or this DLL's
|
|
// code segment. Otherwise the memory could be released by a FreeLibrary call without us knowning.
|
|
Pointer(Dest) := Pointer(Source);
|
|
end
|
|
else
|
|
Dest := Source;
|
|
end;
|
|
{$ENDIF USE_NAME_STRING_LITERAL}
|
|
|
|
{$IFDEF USE_FAST_STRASG_FOR_INTERNAL_STRINGS}
|
|
{$IFDEF DEBUG}
|
|
//procedure InternAsgStringUsageError;
|
|
//begin
|
|
// raise EJsonException.CreateRes(@RsInternAsgStringUsageError);
|
|
//end;
|
|
{$ENDIF DEBUG}
|
|
{$ENDIF USE_FAST_STRASG_FOR_INTERNAL_STRINGS}
|
|
|
|
procedure AnsiLowerCamelCaseString(var S: string);
|
|
begin
|
|
S := AnsiLowerCase(PChar(S)^) + Copy(S, 2);
|
|
end;
|
|
|
|
{$IF not declared(TryStrToUInt64)}
|
|
function TryStrToUInt64(const S: string; out Value: UInt64): Boolean;
|
|
var
|
|
P, EndP: PChar;
|
|
V: UInt64;
|
|
Digit: Integer;
|
|
begin
|
|
// No support for hexadecimal strings
|
|
|
|
P := PChar(S);
|
|
EndP := P + Length(S);
|
|
// skip spaces
|
|
while (P < EndP) and (P^ = ' ') do
|
|
Inc(P);
|
|
if P^ = '-' then
|
|
Result := False // UInt64 cannot be negative
|
|
else
|
|
begin
|
|
V := 0;
|
|
while P < EndP do
|
|
begin
|
|
Digit := Integer(Ord(P^)) - Ord('0');
|
|
if (Cardinal(Digit) >= 10) or (V > High(UInt64) div 10) then
|
|
Break;
|
|
//V := V * 10 + Digit;
|
|
V := (V shl 3) + (V shl 1) + Digit;
|
|
Inc(P);
|
|
end;
|
|
|
|
Result := P = EndP;
|
|
if Result then
|
|
Value := V;
|
|
end;
|
|
end;
|
|
{$IFEND}
|
|
|
|
function GetHexDigitsUtf8(P: PByte; Count: Integer; const Reader: TJsonReader): LongWord;
|
|
var
|
|
Ch: Byte;
|
|
begin
|
|
Result := 0;
|
|
while Count > 0 do
|
|
begin
|
|
Ch := P^;
|
|
case P^ of
|
|
Ord('0')..Ord('9'): Result := (Result shl 4) or LongWord(Ch - Ord('0'));
|
|
Ord('A')..Ord('F'): Result := (Result shl 4) or LongWord(Ch - (Ord('A') - 10));
|
|
Ord('a')..Ord('f'): Result := (Result shl 4) or LongWord(Ch - (Ord('a') - 10));
|
|
else
|
|
Break;
|
|
end;
|
|
Inc(P);
|
|
Dec(Count);
|
|
end;
|
|
if Count > 0 then
|
|
raise EJsonParserException.CreateResFmt(@RsInvalidHexNumber, [P^], Reader.FLineNum, Reader.GetLineColumn, Reader.GetPosition);
|
|
end;
|
|
|
|
function GetHexDigits(P: PChar; Count: Integer; const Reader: TJsonReader): LongWord;
|
|
var
|
|
Ch: Char;
|
|
begin
|
|
Result := 0;
|
|
while Count > 0 do
|
|
begin
|
|
Ch := P^;
|
|
case P^ of
|
|
'0'..'9': Result := (Result shl 4) or LongWord(Ord(Ch) - Ord('0'));
|
|
'A'..'F': Result := (Result shl 4) or LongWord(Ord(Ch) - (Ord('A') - 10));
|
|
'a'..'f': Result := (Result shl 4) or LongWord(Ord(Ch) - (Ord('a') - 10));
|
|
else
|
|
Break;
|
|
end;
|
|
Inc(P);
|
|
Dec(Count);
|
|
end;
|
|
if Count > 0 then
|
|
raise EJsonParserException.CreateResFmt(@RsInvalidHexNumber, [P^], Reader.FLineNum, Reader.GetLineColumn, Reader.GetPosition);
|
|
end;
|
|
|
|
function UtcDateTimeToLocalDateTime(UtcDateTime: TDateTime): TDateTime;
|
|
{$IFDEF MSWINDOWS}
|
|
var
|
|
UtcTime, LocalTime: TSystemTime;
|
|
begin
|
|
DateTimeToSystemTime(UtcDateTime, UtcTime);
|
|
if SystemTimeToTzSpecificLocalTime(nil, UtcTime, LocalTime) then
|
|
Result := SystemTimeToDateTime(LocalTime)
|
|
else
|
|
Result := UtcDateTime;
|
|
end;
|
|
{$ELSE}
|
|
begin
|
|
Result := TTimeZone.Local.ToLocalTime(UtcDateTime);
|
|
end;
|
|
{$ENDIF MSWINDOWS}
|
|
|
|
function LocalDateTimeToUtcDateTime(DateTime: TDateTime): TDateTime;
|
|
{$IFDEF MSWINDOWS}
|
|
var
|
|
UtcTime, LocalTime: TSystemTime;
|
|
begin
|
|
DateTimeToSystemTime(DateTime, LocalTime);
|
|
if TzSpecificLocalTimeToSystemTime(nil, LocalTime, UtcTime) then
|
|
Result := SystemTimeToDateTime(UtcTime)
|
|
else
|
|
Result := DateTime;
|
|
end;
|
|
{$ELSE}
|
|
begin
|
|
Result := TTimeZone.Local.ToUniversalTime(DateTime);
|
|
end;
|
|
{$ENDIF MSWINDOWS}
|
|
|
|
function DateTimeToISO8601(Value: TDateTime): string;
|
|
{$IFDEF MSWINDOWS}
|
|
var
|
|
LocalTime, UtcTime: TSystemTime;
|
|
Offset: TDateTime;
|
|
Hour, Min, Sec, MSec: Word;
|
|
begin
|
|
DateTimeToSystemTime(Value, LocalTime);
|
|
Result := Format('%.4d-%.2d-%.2dT%.2d:%.2d:%.2d.%d',
|
|
[LocalTime.wYear, LocalTime.wMonth, LocalTime.wDay,
|
|
LocalTime.wHour, LocalTime.wMinute, LocalTime.wSecond, LocalTime.wMilliseconds]);
|
|
if TzSpecificLocalTimeToSystemTime(nil, LocalTime, UtcTime) then
|
|
begin
|
|
Offset := Value - SystemTimeToDateTime(UtcTime);
|
|
DecodeTime(Offset, Hour, Min, Sec, MSec);
|
|
if Offset < 0 then
|
|
Result := Format('%s-%.2d:%.2d', [Result, Hour, Min])
|
|
else if Offset > 0 then
|
|
Result := Format('%s+%.2d:%.2d', [Result, Hour, Min])
|
|
else
|
|
Result := Result + 'Z';
|
|
end;
|
|
end;
|
|
{$ELSE}
|
|
var
|
|
Offset: TDateTime;
|
|
Year, Month, Day, Hour, Minute, Second, Milliseconds: Word;
|
|
begin
|
|
DecodeDate(Value, Year, Month, Day);
|
|
DecodeTime(Value, Hour, Minute, Second, MilliSeconds);
|
|
Result := Format('%.4d-%.2d-%.2dT%.2d:%.2d:%.2d.%d', [Year, Month, Day, Hour, Minute, Second, Milliseconds]);
|
|
Offset := Value - TTimeZone.Local.ToUniversalTime(Value);
|
|
DecodeTime(Offset, Hour, Minute, Second, MilliSeconds);
|
|
if Offset < 0 then
|
|
Result := Format('%s-%.2d:%.2d', [Result, Hour, Minute])
|
|
else if Offset > 0 then
|
|
Result := Format('%s+%.2d:%.2d', [Result, Hour, Minute])
|
|
else
|
|
Result := Result + 'Z';
|
|
end;
|
|
{$ENDIF MSWINDOWS}
|
|
|
|
class function TJsonBaseObject.UtcDateTimeToJSON(const UtcDateTime: TDateTime): string;
|
|
var
|
|
Year, Month, Day, Hour, Minute, Second, Milliseconds: Word;
|
|
begin
|
|
DecodeDate(UtcDateTime, Year, Month, Day);
|
|
DecodeTime(UtcDateTime, Hour, Minute, Second, MilliSeconds);
|
|
Result := Format('%.4d-%.2d-%.2dT%.2d:%.2d:%.2d.%dZ',
|
|
[Year, Month, Day, Hour, Minute, Second, Milliseconds]);
|
|
end;
|
|
|
|
function TJsonBaseObject.Clone: TJsonBaseObject;
|
|
begin
|
|
if Self is TJsonArray then
|
|
Result := TJsonArray(Self).Clone
|
|
else
|
|
Result := TJsonObject(Self).Clone;
|
|
end;
|
|
|
|
class function TJsonBaseObject.DateTimeToJSON(const Value: TDateTime; UseUtcTime: Boolean): string;
|
|
{$IFDEF MSWINDOWS}
|
|
var
|
|
LocalTime, UtcTime: TSystemTime;
|
|
begin
|
|
if UseUtcTime then
|
|
begin
|
|
DateTimeToSystemTime(Value, LocalTime);
|
|
if not TzSpecificLocalTimeToSystemTime(nil, LocalTime, UtcTime) then
|
|
UtcTime := LocalTime;
|
|
Result := Format('%.4d-%.2d-%.2dT%.2d:%.2d:%.2d.%dZ',
|
|
[UtcTime.wYear, UtcTime.wMonth, UtcTime.wDay,
|
|
UtcTime.wHour, UtcTime.wMinute, UtcTime.wSecond, UtcTime.wMilliseconds]);
|
|
end
|
|
else
|
|
Result := DateTimeToISO8601(Value);
|
|
end;
|
|
{$ELSE}
|
|
begin
|
|
if UseUtcTime then
|
|
Result := UtcDateTimeToJSON(TTimeZone.Local.ToUniversalTime(Value))
|
|
else
|
|
Result := DateTimeToISO8601(Value);
|
|
end;
|
|
{$ENDIF MSWINDOWS}
|
|
|
|
function ParseDateTimePart(P: PChar; var Value: Integer; MaxLen: Integer): PChar;
|
|
var
|
|
V: Integer;
|
|
begin
|
|
Result := P;
|
|
V := 0;
|
|
while (Result^ in ['0'..'9']) and (MaxLen > 0) do
|
|
begin
|
|
V := V * 10 + (Ord(Result^) - Ord('0'));
|
|
Inc(Result);
|
|
Dec(MaxLen);
|
|
end;
|
|
Value := V;
|
|
end;
|
|
|
|
function VarTypeToJsonDataType(AVarType: TVarType): TJsonDataType;
|
|
begin
|
|
case AVarType of
|
|
varNull:
|
|
Result := jdtObject;
|
|
varOleStr, varString, varUString:
|
|
Result := jdtString;
|
|
varSmallInt, varInteger, varShortInt, varByte, varWord, varLongWord:
|
|
Result := jdtInt;
|
|
varInt64:
|
|
Result := jdtLong;
|
|
varUInt64:
|
|
Result := jdtULong;
|
|
varSingle, varDouble, varCurrency:
|
|
Result := jdtFloat;
|
|
varDate:
|
|
Result := jdtDateTime;
|
|
varBoolean:
|
|
Result := jdtBool;
|
|
else
|
|
ErrorUnsupportedVariantType(AVarType);
|
|
Result := jdtNone;
|
|
end;
|
|
end;
|
|
|
|
class function TJsonBaseObject.JSONToDateTime(const Value: string; ConvertToLocalTime: Boolean): TDateTime;
|
|
var
|
|
P: PChar;
|
|
MSecsSince1970: Int64;
|
|
Year, Month, Day, Hour, Min, Sec, MSec: Integer;
|
|
OffsetHour, OffsetMin: Integer;
|
|
Sign: Double;
|
|
begin
|
|
Result := 0;
|
|
if Value = '' then
|
|
Exit;
|
|
|
|
P := PChar(Value);
|
|
if (P^ = '/') and (StrLComp('Date(', P + 1, 5) = 0) then // .NET: milliseconds since 1970-01-01
|
|
begin
|
|
Inc(P, 6);
|
|
MSecsSince1970 := 0;
|
|
while (P^ <> #0) and (P^ in ['0'..'9']) do
|
|
begin
|
|
MSecsSince1970 := MSecsSince1970 * 10 + (Ord(P^) - Ord('0'));
|
|
Inc(P);
|
|
end;
|
|
if (P^ = '+') or (P^ = '-') then // timezone information
|
|
begin
|
|
Inc(P);
|
|
while (P^ <> #0) and (P^ in ['0'..'9']) do
|
|
Inc(P);
|
|
end;
|
|
if (P[0] = ')') and (P[1] = '/') and (P[2] = #0) then
|
|
begin
|
|
Result := UnixDateDelta + (MSecsSince1970 / MSecsPerDay);
|
|
if ConvertToLocalTime then
|
|
Result := UtcDateTimeToLocalDateTime(Result);
|
|
end
|
|
else
|
|
Result := 0; // invalid format
|
|
end
|
|
else
|
|
begin
|
|
// "2015-02-01T16:08:19.202Z"
|
|
if P^ = '-' then // negative year
|
|
Inc(P);
|
|
P := ParseDateTimePart(P, Year, 4);
|
|
if P^ <> '-' then
|
|
Exit; // invalid format
|
|
P := ParseDateTimePart(P + 1, Month, 2);
|
|
if P^ <> '-' then
|
|
Exit; // invalid format
|
|
P := ParseDateTimePart(P + 1, Day, 2);
|
|
|
|
Hour := 0;
|
|
Min := 0;
|
|
Sec := 0;
|
|
MSec := 0;
|
|
Result := EncodeDate(Year, Month, Day);
|
|
|
|
if P^ = 'T' then
|
|
begin
|
|
P := ParseDateTimePart(P + 1, Hour, 2);
|
|
if P^ <> ':' then
|
|
Exit; // invalid format
|
|
P := ParseDateTimePart(P + 1, Min, 2);
|
|
if P^ = ':' then
|
|
begin
|
|
P := ParseDateTimePart(P + 1, Sec, 2);
|
|
if P^ = '.' then
|
|
P := ParseDateTimePart(P + 1, MSec, 3);
|
|
end;
|
|
Result := Result + EncodeTime(Hour, Min, Sec, MSec);
|
|
if (P^ <> 'Z') and (P^ <> #0) then
|
|
begin
|
|
if (P^ = '+') or (P^ = '-') then
|
|
begin
|
|
if P^ = '+' then
|
|
Sign := -1 // +0100 means that the time is 1 hour later than UTC
|
|
else
|
|
Sign := 1;
|
|
|
|
P := ParseDateTimePart(P + 1, OffsetHour, 2);
|
|
if P^ = ':' then
|
|
Inc(P);
|
|
ParseDateTimePart(P, OffsetMin, 2);
|
|
|
|
Result := Result + (EncodeTime(OffsetHour, OffsetMin, 0, 0) * Sign);
|
|
end
|
|
else
|
|
begin
|
|
Result := 0; // invalid format
|
|
Exit;
|
|
end;
|
|
end;
|
|
|
|
if ConvertToLocalTime then
|
|
Result := UtcDateTimeToLocalDateTime(Result);
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
{$IFDEF NEXTGEN}
|
|
function Utf8StrLen(P: PByte): Integer;
|
|
begin
|
|
Result := 0;
|
|
if P <> nil then
|
|
while P[Result] <> 0 do
|
|
Inc(Result);
|
|
end;
|
|
{$ENDIF NEXTGEN}
|
|
|
|
procedure SetStringUtf8(var S: string; P: PByte; Len: Integer);
|
|
var
|
|
L: Integer;
|
|
begin
|
|
if S <> '' then
|
|
S := '';
|
|
if (P = nil) or (Len = 0) then
|
|
Exit;
|
|
SetLength(S, Len);
|
|
|
|
L := Utf8ToUnicode(PWideChar(Pointer(S)), Len + 1, PAnsiChar(P), Len);
|
|
if L > 0 then
|
|
begin
|
|
if L - 1 <> Len then
|
|
SetLength(S, L - 1);
|
|
end
|
|
else
|
|
S := '';
|
|
end;
|
|
|
|
procedure AppendString(var S: string; P: PChar; Len: Integer);
|
|
var
|
|
OldLen: Integer;
|
|
begin
|
|
if (P = nil) or (Len = 0) then
|
|
Exit;
|
|
OldLen := Length(S);
|
|
SetLength(S, OldLen + Len);
|
|
Move(P^, PChar(Pointer(S))[OldLen], Len * SizeOf(Char));
|
|
end;
|
|
|
|
procedure AppendStringUtf8(var S: string; P: PByte; Len: Integer);
|
|
var
|
|
L, OldLen: Integer;
|
|
begin
|
|
if (P = nil) or (Len = 0) then
|
|
Exit;
|
|
OldLen := Length(S);
|
|
SetLength(S, OldLen + Len);
|
|
|
|
L := Utf8ToUnicode(PWideChar(Pointer(S)) + OldLen, Len + 1, PAnsiChar(P), Len);
|
|
if L > 0 then
|
|
begin
|
|
if L - 1 <> Len then
|
|
SetLength(S, OldLen + L - 1);
|
|
end
|
|
else
|
|
SetLength(S, OldLen);
|
|
end;
|
|
|
|
{$IFDEF SUPPORT_PROGRESS}
|
|
{ TJsonReaderProgressRec }
|
|
|
|
function TJsonReaderProgressRec.Init(AProgress: TJsonReaderProgressProc; AData: Pointer = nil; AThreshold: NativeInt = 0): PJsonReaderProgressRec;
|
|
begin
|
|
Self.Data := AData;
|
|
Self.Threshold := AThreshold;
|
|
Self.Progress := AProgress;
|
|
Result := @Self;
|
|
end;
|
|
{$ENDIF SUPPORT_PROGRESS}
|
|
|
|
{ TJsonReader }
|
|
|
|
{$IFDEF USE_FAST_NEWINSTANCE}
|
|
class function TJsonReader.NewInstance: TObject;
|
|
begin
|
|
GetMem(Pointer(Result), InstanceSize);
|
|
PPointer(Result)^ := Self;
|
|
{$IFDEF AUTOREFCOUNT}
|
|
TJsonReader(Result).FRefCount := 1;
|
|
{$ENDIF AUTOREFCOUNT}
|
|
end;
|
|
|
|
procedure TJsonReader.FreeInstance;
|
|
begin
|
|
// We have no WeakRef => faster cleanup
|
|
FreeMem(Pointer(Self));
|
|
end;
|
|
{$ENDIF ~USE_FAST_NEWINSTANCE}
|
|
|
|
constructor TJsonReader.Create(AStart: Pointer{$IFDEF SUPPORT_PROGRESS}; ASize: NativeInt; AProgress: PJsonReaderProgressRec{$ENDIF});
|
|
begin
|
|
//inherited Create;
|
|
{$IFDEF USE_FAST_NEWINSTANCE}
|
|
Pointer(FPropName) := nil;
|
|
Pointer(FLook.S) := nil;
|
|
{$ENDIF USE_FAST_NEWINSTANCE}
|
|
{$IFDEF USE_STRINGINTERN_FOR_NAMES}
|
|
FIdents.Init;
|
|
{$ENDIF USE_STRINGINTERN_FOR_NAMES}
|
|
|
|
FStart := AStart;
|
|
FLineNum := 1; // base 1
|
|
FLineStart := nil;
|
|
|
|
{$IFDEF SUPPORT_PROGRESS}
|
|
FSize := ASize;
|
|
FProgress := AProgress;
|
|
FLastProgressValue := 0; // class is not zero-filled
|
|
if (FProgress <> nil) and Assigned(FProgress.Progress) then
|
|
FProgress.Progress(FProgress.Data, 0, 0, FSize);
|
|
{$ENDIF SUPPORT_PROGRESS}
|
|
end;
|
|
|
|
destructor TJsonReader.Destroy;
|
|
begin
|
|
{$IFDEF USE_FAST_NEWINSTANCE}
|
|
FPropName := '';
|
|
FLook.S := '';
|
|
{$ENDIF USE_FAST_NEWINSTANCE}
|
|
{$IFDEF USE_STRINGINTERN_FOR_NAMES}
|
|
FIdents.Done;
|
|
{$ENDIF USE_STRINGINTERN_FOR_NAMES}
|
|
|
|
{$IFDEF SUPPORT_PROGRESS}
|
|
if (FLook.Kind = jtkEof) and (FProgress <> nil) and Assigned(FProgress.Progress) then
|
|
FProgress.Progress(FProgress.Data, 100, FSize, FSize);
|
|
{$ENDIF SUPPORT_PROGRESS}
|
|
//inherited Destroy;
|
|
end;
|
|
|
|
{$IFDEF SUPPORT_PROGRESS}
|
|
procedure TJsonReader.CheckProgress(Position: Pointer);
|
|
var
|
|
NewPercentage: NativeInt;
|
|
Ps: NativeInt;
|
|
begin
|
|
if {(FProgress <> nil) and} Assigned(FProgress.Progress) then
|
|
begin
|
|
Ps := PByte(Position) - PByte(FStart);
|
|
if FProgress.Threshold = 0 then
|
|
begin
|
|
NewPercentage := Ps * 100 div FSize;
|
|
if NewPercentage <> FLastProgressValue then
|
|
begin
|
|
FLastProgressValue := NewPercentage;
|
|
FProgress.Progress(FProgress.Data, NewPercentage, Ps, FSize);
|
|
end;
|
|
end
|
|
else if FProgress.Threshold > 0 then
|
|
begin
|
|
if Ps - FLastProgressValue >= FProgress.Threshold then
|
|
begin
|
|
FLastProgressValue := Ps;
|
|
NewPercentage := 0;
|
|
if FSize > 0 then
|
|
NewPercentage := Ps * 100 div FSize;
|
|
FProgress.Progress(FProgress.Data, NewPercentage, Ps, FSize);
|
|
end;
|
|
end;
|
|
end;
|
|
end;
|
|
{$ENDIF SUPPORT_PROGRESS}
|
|
|
|
function TJsonReader.GetLineColumn: NativeInt;
|
|
begin
|
|
if FLineStart = nil then
|
|
FLineStart := FStart;
|
|
Result := GetCharOffset(FLineStart) + 1; // base 1
|
|
end;
|
|
|
|
function TJsonReader.GetPosition: NativeInt;
|
|
begin
|
|
Result := GetCharOffset(FStart);
|
|
end;
|
|
|
|
class procedure TJsonReader.InvalidStringCharacterError(const Reader: TJsonReader);
|
|
begin
|
|
raise EJsonParserException.CreateRes(@RsInvalidStringCharacter,
|
|
Reader.FLineNum, Reader.GetLineColumn, Reader.GetPosition);
|
|
end;
|
|
|
|
class procedure TJsonReader.StringNotClosedError(const Reader: TJsonReader);
|
|
begin
|
|
raise EJsonParserException.CreateRes(@RsStringNotClosed,
|
|
Reader.FLineNum, Reader.GetLineColumn, Reader.GetPosition);
|
|
end;
|
|
|
|
class procedure TJsonReader.JSONStrToStr(P, EndP: PChar; FirstEscapeIndex: Integer; var S: string;
|
|
const Reader: TJsonReader);
|
|
const
|
|
MaxBufPos = 127;
|
|
var
|
|
Buf: array[0..MaxBufPos] of Char;
|
|
F: PChar;
|
|
BufPos, Len: Integer;
|
|
begin
|
|
Dec(FirstEscapeIndex);
|
|
|
|
if FirstEscapeIndex > 0 then
|
|
begin
|
|
SetString(S, P, FirstEscapeIndex);
|
|
Inc(P, FirstEscapeIndex);
|
|
end
|
|
else
|
|
S := '';
|
|
|
|
while True do
|
|
begin
|
|
BufPos := 0;
|
|
while (P < EndP) and (P^ = '\') do
|
|
begin
|
|
Inc(P);
|
|
if P = EndP then // broken escaped character
|
|
Break;
|
|
case P^ of
|
|
'"': Buf[BufPos] := '"';
|
|
'\': Buf[BufPos] := '\';
|
|
'/': Buf[BufPos] := '/';
|
|
'b': Buf[BufPos] := #8;
|
|
'f': Buf[BufPos] := #12;
|
|
'n': Buf[BufPos] := #10;
|
|
'r': Buf[BufPos] := #13;
|
|
't': Buf[BufPos] := #9;
|
|
'u':
|
|
begin
|
|
Inc(P);
|
|
if P + 3 >= EndP then
|
|
Break;
|
|
Buf[BufPos] := Char(GetHexDigits(P, 4, TJsonReader(Reader)));
|
|
Inc(P, 3);
|
|
end;
|
|
else
|
|
Break;
|
|
end;
|
|
Inc(P);
|
|
|
|
Inc(BufPos);
|
|
if BufPos > MaxBufPos then
|
|
begin
|
|
Len := Length(S);
|
|
SetLength(S, Len + BufPos);
|
|
Move(Buf[0], PChar(Pointer(S))[Len], BufPos * SizeOf(Char));
|
|
BufPos := 0;
|
|
end;
|
|
end;
|
|
// append remaining buffer
|
|
if BufPos > 0 then
|
|
begin
|
|
Len := Length(S);
|
|
SetLength(S, Len + BufPos);
|
|
Move(Buf[0], PChar(Pointer(S))[Len], BufPos * SizeOf(Char));
|
|
end;
|
|
|
|
// fast forward
|
|
F := P;
|
|
while (P < EndP) and (P^ <> '\') do
|
|
Inc(P);
|
|
if P > F then
|
|
AppendString(S, F, P - F);
|
|
if P >= EndP then
|
|
Break;
|
|
end;
|
|
end;
|
|
|
|
class procedure TJsonReader.JSONUtf8StrToStr(P, EndP: PByte; FirstEscapeIndex: Integer; var S: string;
|
|
const Reader: TJsonReader);
|
|
const
|
|
MaxBufPos = 127;
|
|
var
|
|
Buf: array[0..MaxBufPos] of Char;
|
|
F: PByte;
|
|
BufPos, Len: Integer;
|
|
begin
|
|
Dec(FirstEscapeIndex);
|
|
|
|
if FirstEscapeIndex > 0 then
|
|
begin
|
|
SetStringUtf8(S, P, FirstEscapeIndex);
|
|
Inc(P, FirstEscapeIndex);
|
|
end
|
|
else
|
|
S := '';
|
|
|
|
while True do
|
|
begin
|
|
BufPos := 0;
|
|
while (P < EndP) and (P^ = Byte(Ord('\'))) do
|
|
begin
|
|
Inc(P);
|
|
if P = EndP then // broken escaped character
|
|
Break;
|
|
case P^ of
|
|
Ord('"'): Buf[BufPos] := '"';
|
|
Ord('\'): Buf[BufPos] := '\';
|
|
Ord('/'): Buf[BufPos] := '/';
|
|
Ord('b'): Buf[BufPos] := #8;
|
|
Ord('f'): Buf[BufPos] := #12;
|
|
Ord('n'): Buf[BufPos] := #10;
|
|
Ord('r'): Buf[BufPos] := #13;
|
|
Ord('t'): Buf[BufPos] := #9;
|
|
Ord('u'):
|
|
begin
|
|
Inc(P);
|
|
if P + 3 >= EndP then
|
|
Break;
|
|
Buf[BufPos] := Char(GetHexDigitsUtf8(P, 4, TJsonReader(Reader)));
|
|
Inc(P, 3);
|
|
end;
|
|
else
|
|
Break;
|
|
end;
|
|
Inc(P);
|
|
|
|
Inc(BufPos);
|
|
if BufPos > MaxBufPos then
|
|
begin
|
|
Len := Length(S);
|
|
SetLength(S, Len + BufPos);
|
|
Move(Buf[0], PChar(Pointer(S))[Len], BufPos * SizeOf(Char));
|
|
BufPos := 0;
|
|
end;
|
|
end;
|
|
// append remaining buffer
|
|
if BufPos > 0 then
|
|
begin
|
|
Len := Length(S);
|
|
SetLength(S, Len + BufPos);
|
|
Move(Buf[0], PChar(Pointer(S))[Len], BufPos * SizeOf(Char));
|
|
end;
|
|
|
|
// fast forward
|
|
F := P;
|
|
while (P < EndP) and (P^ <> Byte(Ord('\'))) do
|
|
Inc(P);
|
|
if P > F then
|
|
AppendStringUtf8(S, F, P - F);
|
|
if P >= EndP then
|
|
Break;
|
|
end;
|
|
end;
|
|
|
|
procedure TJsonReader.Parse(Data: TJsonBaseObject);
|
|
begin
|
|
if Data is TJsonObject then
|
|
begin
|
|
TJsonObject(Data).Clear;
|
|
Next; // initialize Lexer
|
|
Accept(jtkLBrace);
|
|
ParseObjectBody(TJsonObject(Data));
|
|
Accept(jtkRBrace);
|
|
end
|
|
else if Data is TJsonArray then
|
|
begin
|
|
TJsonArray(Data).Clear;
|
|
Next; // initialize Lexer
|
|
Accept(jtkLBracket);
|
|
ParseArrayBody(TJsonArray(Data));
|
|
Accept(jtkRBracket)
|
|
end;
|
|
end;
|
|
|
|
procedure TJsonReader.ParseObjectBody(const Data: TJsonObject);
|
|
// ObjectBody ::= [ ObjectProperty [ "," ObjectProperty ]* ]
|
|
begin
|
|
if FLook.Kind <> jtkRBrace then
|
|
begin
|
|
while FLook.Kind <> jtkEof do
|
|
begin
|
|
ParseObjectProperty(Data);
|
|
if FLook.Kind = jtkRBrace then
|
|
Break;
|
|
Accept(jtkComma);
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
procedure TJsonReader.ParseObjectProperty(const Data: TJsonObject);
|
|
// Property ::= IDENT ":" ObjectPropertyValue
|
|
begin
|
|
if FLook.Kind >= jtkIdent then // correct JSON would be "tkString" only
|
|
begin
|
|
{$IFDEF USE_STRINGINTERN_FOR_NAMES}
|
|
FIdents.Intern(FLook.S, FPropName);
|
|
{$ELSE}
|
|
FPropName := '';
|
|
// transfer the string without going through UStrAsg and UStrClr
|
|
Pointer(FPropName) := Pointer(FLook.S);
|
|
Pointer(FLook.S) := nil;
|
|
{$ENDIF USE_STRINGINTERN_FOR_NAMES}
|
|
Next;
|
|
end
|
|
else
|
|
Accept(jtkString);
|
|
|
|
Accept(jtkColon);
|
|
ParseObjectPropertyValue(Data);
|
|
end;
|
|
|
|
procedure TJsonReader.ParseObjectPropertyValue(const Data: TJsonObject);
|
|
// ObjectPropertyValue ::= Object | Array | Value
|
|
begin
|
|
case FLook.Kind of
|
|
jtkLBrace:
|
|
begin
|
|
Accept(jtkLBrace);
|
|
ParseObjectBody(Data.InternAddObject(FPropName));
|
|
Accept(jtkRBrace);
|
|
end;
|
|
|
|
jtkLBracket:
|
|
begin
|
|
Accept(jtkLBracket);
|
|
ParseArrayBody(Data.InternAddArray(FPropName));
|
|
Accept(jtkRBracket);
|
|
end;
|
|
|
|
jtkNull:
|
|
begin
|
|
Data.InternAdd(FPropName, TJsonObject(nil));
|
|
Next;
|
|
end;
|
|
|
|
jtkIdent,
|
|
jtkString:
|
|
begin
|
|
Data.InternAddItem(FPropName).InternSetValueTransfer(FLook.S);
|
|
Next;
|
|
end;
|
|
|
|
jtkInt:
|
|
begin
|
|
Data.InternAdd(FPropName, FLook.I);
|
|
Next;
|
|
end;
|
|
|
|
jtkLong:
|
|
begin
|
|
Data.InternAdd(FPropName, FLook.L);
|
|
Next;
|
|
end;
|
|
|
|
jtkULong:
|
|
begin
|
|
Data.InternAdd(FPropName, FLook.U);
|
|
Next;
|
|
end;
|
|
|
|
jtkFloat:
|
|
begin
|
|
Data.InternAdd(FPropName, FLook.F);
|
|
Next;
|
|
end;
|
|
|
|
jtkTrue:
|
|
begin
|
|
Data.InternAdd(FPropName, True);
|
|
Next;
|
|
end;
|
|
|
|
jtkFalse:
|
|
begin
|
|
Data.InternAdd(FPropName, False);
|
|
Next;
|
|
end
|
|
else
|
|
Accept(jtkValue);
|
|
end;
|
|
end;
|
|
|
|
procedure TJsonReader.ParseArrayBody(const Data: TJsonArray);
|
|
// ArrayBody ::= [ ArrayPropertyValue [ "," ArrayPropertyValue ]* ]
|
|
begin
|
|
if FLook.Kind <> jtkRBracket then
|
|
begin
|
|
while FLook.Kind <> jtkEof do
|
|
begin
|
|
ParseArrayPropertyValue(Data);
|
|
if FLook.Kind = jtkRBracket then
|
|
Break;
|
|
Accept(jtkComma);
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
procedure TJsonReader.ParseArrayPropertyValue(const Data: TJsonArray);
|
|
// ArrayPropertyValue ::= Object | Array | Value
|
|
begin
|
|
case FLook.Kind of
|
|
jtkLBrace:
|
|
begin
|
|
Accept(jtkLBrace);
|
|
ParseObjectBody(Data.AddObject);
|
|
Accept(jtkRBrace);
|
|
end;
|
|
|
|
jtkLBracket:
|
|
begin
|
|
Accept(jtkLBracket);
|
|
ParseArrayBody(Data.AddArray);
|
|
Accept(jtkRBracket);
|
|
end;
|
|
|
|
jtkNull:
|
|
begin
|
|
Data.Add(TJsonObject(nil));
|
|
Next;
|
|
end;
|
|
|
|
jtkIdent,
|
|
jtkString:
|
|
begin
|
|
Data.Add(FLook.S);
|
|
Next;
|
|
end;
|
|
|
|
jtkInt:
|
|
begin
|
|
Data.Add(FLook.I);
|
|
Next;
|
|
end;
|
|
|
|
jtkLong:
|
|
begin
|
|
Data.Add(FLook.L);
|
|
Next;
|
|
end;
|
|
|
|
jtkULong:
|
|
begin
|
|
Data.Add(FLook.U);
|
|
Next;
|
|
end;
|
|
|
|
jtkFloat:
|
|
begin
|
|
Data.Add(FLook.F);
|
|
Next;
|
|
end;
|
|
|
|
jtkTrue:
|
|
begin
|
|
Data.Add(True);
|
|
Next;
|
|
end;
|
|
|
|
jtkFalse:
|
|
begin
|
|
Data.Add(False);
|
|
Next;
|
|
end;
|
|
else
|
|
Accept(jtkValue);
|
|
end;
|
|
end;
|
|
|
|
procedure TJsonReader.AcceptFailed(TokenKind: TJsonTokenKind);
|
|
var
|
|
Col, Position: NativeInt;
|
|
begin
|
|
Col := GetLineColumn;
|
|
Position := GetPosition;
|
|
if FLook.Kind = jtkEof then
|
|
raise EJsonParserException.CreateResFmt(@RsUnexpectedEndOfFile, [JsonTokenKindToStr[TokenKind]], FLineNum, Col, Position);
|
|
raise EJsonParserException.CreateResFmt(@RsUnexpectedToken, [JsonTokenKindToStr[TokenKind], JsonTokenKindToStr[FLook.Kind]], FLineNum, Col, Position);
|
|
end;
|
|
|
|
procedure TJsonReader.Accept(TokenKind: TJsonTokenKind);
|
|
begin
|
|
if FLook.Kind <> TokenKind then
|
|
AcceptFailed(TokenKind);
|
|
Next;
|
|
end;
|
|
|
|
{ TJsonDataValue }
|
|
|
|
procedure TJsonDataValue.Clear;
|
|
{$IFDEF USE_FAST_AUTOREFCOUNT}
|
|
var
|
|
P: Pointer;
|
|
{$ENDIF USE_FAST_AUTOREFCOUNT}
|
|
begin
|
|
// All types must clear their value because if a value changes the type we need a zero-ed value
|
|
case FTyp of
|
|
jdtString:
|
|
string(FValue.S) := '';
|
|
jdtInt:
|
|
FValue.I := 0;
|
|
jdtLong:
|
|
FValue.L := 0;
|
|
jdtULong:
|
|
FValue.U := 0;
|
|
jdtFloat:
|
|
FValue.F := 0;
|
|
jdtDateTime, jdtUtcDateTime:
|
|
FValue.D := 0;
|
|
jdtBool:
|
|
FValue.B := False;
|
|
jdtArray,
|
|
jdtObject:
|
|
begin
|
|
{$IFDEF USE_FAST_AUTOREFCOUNT}
|
|
P := FValue.O;
|
|
if P <> nil then
|
|
begin
|
|
FValue.O := nil;
|
|
TJsonBaseObject(P).ARCObjRelease;
|
|
end;
|
|
{$ELSE}
|
|
{$IFNDEF AUTOREFCOUNT}
|
|
TJsonBaseObject(FValue.O).Free;
|
|
{$ENDIF ~AUTOREFCOUNT}
|
|
TJsonBaseObject(FValue.O) := nil;
|
|
{$ENDIF USE_FAST_AUTOREFCOUNT}
|
|
end;
|
|
end;
|
|
FTyp := jdtNone;
|
|
end;
|
|
|
|
function TJsonDataValue.IsNull: Boolean;
|
|
begin
|
|
case FTyp of
|
|
jdtObject:
|
|
Result := FValue.O = nil;
|
|
jdtNone:
|
|
Result := True;
|
|
else
|
|
Result := False;
|
|
end;
|
|
end;
|
|
|
|
function TJsonDataValue.GetArrayValue: TJsonArray;
|
|
begin
|
|
if FTyp = jdtArray then
|
|
Result := TJsonArray(FValue.A)
|
|
else if FTyp = jdtNone then
|
|
Result := nil
|
|
else
|
|
begin
|
|
TypeCastError(jdtArray);
|
|
Result := nil;
|
|
end;
|
|
end;
|
|
|
|
procedure TJsonDataValue.SetArrayValue(const AValue: TJsonArray);
|
|
var
|
|
LTyp: TJsonDataType;
|
|
begin
|
|
LTyp := FTyp;
|
|
if (LTyp <> jdtArray) or (AValue <> FValue.A) then
|
|
begin
|
|
if LTyp <> jdtNone then
|
|
Clear;
|
|
FTyp := jdtArray;
|
|
{$IFDEF USE_FAST_AUTOREFCOUNT}
|
|
// Assert(FValue.A = nil);
|
|
if AValue <> nil then
|
|
AValue.ARCObjAddRef;
|
|
FValue.A := Pointer(AValue);
|
|
{$ELSE}
|
|
TJsonArray(FValue.A) := AValue;
|
|
{$ENDIF USE_FAST_AUTOREFCOUNT}
|
|
end;
|
|
end;
|
|
|
|
function TJsonDataValue.GetObjectValue: TJsonObject;
|
|
begin
|
|
if FTyp = jdtObject then
|
|
Result := TJsonObject(FValue.O)
|
|
else if FTyp = jdtNone then
|
|
Result := nil
|
|
else
|
|
begin
|
|
TypeCastError(jdtObject);
|
|
Result := nil;
|
|
end;
|
|
end;
|
|
|
|
procedure TJsonDataValue.SetObjectValue(const AValue: TJsonObject);
|
|
var
|
|
LTyp: TJsonDataType;
|
|
begin
|
|
LTyp := FTyp;
|
|
if (LTyp <> jdtObject) or (AValue <> FValue.O) then
|
|
begin
|
|
if LTyp <> jdtNone then
|
|
Clear;
|
|
FTyp := jdtObject;
|
|
{$IFDEF USE_FAST_AUTOREFCOUNT}
|
|
// Assert(FValue.O = nil);
|
|
if AValue <> nil then
|
|
AValue.ARCObjAddRef;
|
|
FValue.O := Pointer(AValue);
|
|
{$ELSE}
|
|
TJsonObject(FValue.O) := AValue;
|
|
{$ENDIF USE_FAST_AUTOREFCOUNT}
|
|
end;
|
|
end;
|
|
|
|
function TJsonDataValue.GetVariantValue: Variant;
|
|
begin
|
|
case FTyp of
|
|
jdtNone:
|
|
Result := Unassigned;
|
|
jdtString:
|
|
Result := string(FValue.S);
|
|
jdtInt:
|
|
Result := FValue.I;
|
|
jdtLong:
|
|
Result := FValue.L;
|
|
jdtULong:
|
|
Result := FValue.U;
|
|
jdtFloat:
|
|
Result := FValue.F;
|
|
jdtDateTime:
|
|
Result := FValue.D;
|
|
jdtUtcDateTime:
|
|
Result := UtcDateTimeToLocalDateTime(FValue.D); // Variant is local time
|
|
jdtBool:
|
|
Result := FValue.B;
|
|
jdtArray:
|
|
ErrorUnsupportedVariantType(varArray);
|
|
jdtObject:
|
|
if FValue.O = nil then
|
|
Result := Null // special handling for "null"
|
|
else
|
|
ErrorUnsupportedVariantType(varObject);
|
|
else
|
|
ErrorUnsupportedVariantType(varAny);
|
|
end;
|
|
end;
|
|
|
|
procedure TJsonDataValue.SetVariantValue(const AValue: Variant);
|
|
var
|
|
LTyp: TJsonDataType;
|
|
begin
|
|
if FTyp <> jdtNone then
|
|
Clear;
|
|
LTyp := VarTypeToJsonDataType(VarType(AValue));
|
|
if LTyp <> jdtNone then
|
|
begin
|
|
FTyp := LTyp;
|
|
case LTyp of
|
|
jdtString:
|
|
string(FValue.S) := AValue;
|
|
jdtInt:
|
|
FValue.I := AValue;
|
|
jdtLong:
|
|
FValue.L := AValue;
|
|
jdtULong:
|
|
FValue.U := AValue;
|
|
jdtFloat:
|
|
FValue.F := AValue;
|
|
jdtDateTime:
|
|
FValue.D := AValue;
|
|
jdtBool:
|
|
FValue.B := AValue;
|
|
// else
|
|
// ErrorUnsupportedVariantType; handled by VarTypeToJsonDataType
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
procedure TJsonDataValue.InternSetArrayValue(const AValue: TJsonArray);
|
|
begin
|
|
FTyp := jdtArray;
|
|
{$IFDEF USE_FAST_AUTOREFCOUNT}
|
|
// Assert(FValue.A = nil);
|
|
if AValue <> nil then
|
|
Inc(AValue.FRefCount); // AValue.ARCObjAddRef; no other thread knows about this object right now
|
|
FValue.A := Pointer(AValue);
|
|
{$ELSE}
|
|
TJsonArray(FValue.A) := AValue;
|
|
{$ENDIF USE_FAST_AUTOREFCOUNT}
|
|
end;
|
|
|
|
procedure TJsonDataValue.InternSetObjectValue(const AValue: TJsonObject);
|
|
begin
|
|
FTyp := jdtObject;
|
|
{$IFDEF USE_FAST_AUTOREFCOUNT}
|
|
// Assert(FValue.O = nil);
|
|
if AValue <> nil then
|
|
Inc(AValue.FRefCount); // AValue.ARCObjAddRef; no other thread knows about this object right now
|
|
FValue.O := Pointer(AValue);
|
|
{$ELSE}
|
|
TJsonObject(FValue.O) := AValue;
|
|
{$ENDIF USE_FAST_AUTOREFCOUNT}
|
|
end;
|
|
|
|
function TJsonDataValue.GetValue: string;
|
|
begin
|
|
case FTyp of
|
|
jdtNone:
|
|
Result := '';
|
|
jdtString:
|
|
Result := string(FValue.S);
|
|
jdtInt:
|
|
Result := IntToStr(FValue.I);
|
|
jdtLong:
|
|
Result := IntToStr(FValue.L);
|
|
jdtULong:
|
|
Result := UIntToStr(FValue.U);
|
|
jdtFloat:
|
|
Result := FloatToStr(FValue.F, JSONFormatSettings);
|
|
jdtDateTime:
|
|
Result := TJsonBaseObject.DateTimeToJSON(FValue.F, JsonSerializationConfig.UseUtcTime);
|
|
jdtUtcDateTime:
|
|
Result := TJsonBaseObject.UtcDateTimeToJSON(FValue.F);
|
|
jdtBool:
|
|
if FValue.B then
|
|
Result := sTrue
|
|
else
|
|
Result := sFalse;
|
|
jdtObject:
|
|
begin
|
|
if not JsonSerializationConfig.NullConvertsToValueTypes or (FValue.O <> nil) then
|
|
TypeCastError(jdtString);
|
|
Result := '';
|
|
end;
|
|
else
|
|
TypeCastError(jdtString);
|
|
Result := '';
|
|
end;
|
|
end;
|
|
|
|
procedure TJsonDataValue.SetValue(const AValue: string);
|
|
var
|
|
LTyp: TJsonDataType;
|
|
begin
|
|
LTyp := FTyp;
|
|
if (LTyp <> jdtString) or (AValue <> string(FValue.S)) then
|
|
begin
|
|
if LTyp <> jdtNone then
|
|
Clear;
|
|
FTyp := jdtString;
|
|
string(FValue.S) := AValue;
|
|
end;
|
|
end;
|
|
|
|
procedure TJsonDataValue.InternSetValue(const AValue: string);
|
|
begin
|
|
FTyp := jdtString;
|
|
string(FValue.S) := AValue;
|
|
end;
|
|
|
|
procedure TJsonDataValue.InternSetValueTransfer(var AValue: string);
|
|
begin
|
|
FTyp := jdtString;
|
|
// transfer the string without going through UStrAsg and UStrClr
|
|
FValue.S := Pointer(AValue);
|
|
Pointer(AValue) := nil;
|
|
end;
|
|
|
|
function TJsonDataValue.GetIntValue: Integer;
|
|
begin
|
|
case FTyp of
|
|
jdtNone:
|
|
Result := 0;
|
|
jdtString:
|
|
if not TryStrToInt(string(FValue.S), Result) then
|
|
Result := Trunc(StrToFloat(string(FValue.S), JSONFormatSettings));
|
|
jdtInt:
|
|
Result := FValue.I;
|
|
jdtLong:
|
|
Result := FValue.L;
|
|
jdtULong:
|
|
Result := FValue.U;
|
|
jdtFloat:
|
|
Result := Trunc(FValue.F);
|
|
jdtDateTime, jdtUtcDateTime:
|
|
Result := Trunc(FValue.D);
|
|
jdtBool:
|
|
Result := Ord(FValue.B);
|
|
jdtObject:
|
|
begin
|
|
if not JsonSerializationConfig.NullConvertsToValueTypes or (FValue.O <> nil) then
|
|
TypeCastError(jdtInt);
|
|
Result := 0;
|
|
end;
|
|
else
|
|
TypeCastError(jdtInt);
|
|
Result := 0;
|
|
end;
|
|
end;
|
|
|
|
procedure TJsonDataValue.SetIntValue(const AValue: Integer);
|
|
var
|
|
LTyp: TJsonDataType;
|
|
begin
|
|
LTyp := FTyp;
|
|
if (LTyp <> jdtInt) or (AValue <> FValue.I) then
|
|
begin
|
|
if LTyp <> jdtNone then
|
|
Clear;
|
|
FTyp := jdtInt;
|
|
FValue.I := AValue;
|
|
end;
|
|
end;
|
|
|
|
function TJsonDataValue.GetLongValue: Int64;
|
|
begin
|
|
case FTyp of
|
|
jdtNone:
|
|
Result := 0;
|
|
jdtString:
|
|
if not TryStrToInt64(string(FValue.S), Result) then
|
|
Result := Trunc(StrToFloat(string(FValue.S), JSONFormatSettings));
|
|
jdtInt:
|
|
Result := FValue.I;
|
|
jdtLong:
|
|
Result := FValue.L;
|
|
jdtULong:
|
|
Result := FValue.U;
|
|
jdtFloat:
|
|
Result := Trunc(FValue.F);
|
|
jdtDateTime, jdtUtcDateTime:
|
|
Result := Trunc(FValue.D);
|
|
jdtBool:
|
|
Result := Ord(FValue.B);
|
|
jdtObject:
|
|
begin
|
|
if not JsonSerializationConfig.NullConvertsToValueTypes or (FValue.O <> nil) then
|
|
TypeCastError(jdtLong);
|
|
Result := 0;
|
|
end;
|
|
else
|
|
TypeCastError(jdtLong);
|
|
Result := 0;
|
|
end;
|
|
end;
|
|
|
|
procedure TJsonDataValue.SetLongValue(const AValue: Int64);
|
|
var
|
|
LTyp: TJsonDataType;
|
|
begin
|
|
LTyp := FTyp;
|
|
if (LTyp <> jdtLong) or (AValue <> FValue.L) then
|
|
begin
|
|
if LTyp <> jdtNone then
|
|
Clear;
|
|
FTyp := jdtLong;
|
|
FValue.L := AValue;
|
|
end;
|
|
end;
|
|
|
|
function TJsonDataValue.GetULongValue: UInt64;
|
|
begin
|
|
case FTyp of
|
|
jdtNone:
|
|
Result := 0;
|
|
jdtString:
|
|
if not TryStrToUInt64(string(FValue.S), Result) then
|
|
Result := Trunc(StrToFloat(string(FValue.S), JSONFormatSettings));
|
|
jdtInt:
|
|
Result := FValue.I;
|
|
jdtLong:
|
|
Result := FValue.L;
|
|
jdtULong:
|
|
Result := FValue.U;
|
|
jdtFloat:
|
|
Result := Trunc(FValue.F);
|
|
jdtDateTime, jdtUtcDateTime:
|
|
Result := Trunc(FValue.D);
|
|
jdtBool:
|
|
Result := Ord(FValue.B);
|
|
jdtObject:
|
|
begin
|
|
if not JsonSerializationConfig.NullConvertsToValueTypes or (FValue.O <> nil) then
|
|
TypeCastError(jdtULong);
|
|
Result := 0;
|
|
end;
|
|
else
|
|
TypeCastError(jdtULong);
|
|
Result := 0;
|
|
end;
|
|
end;
|
|
|
|
procedure TJsonDataValue.SetULongValue(const AValue: UInt64);
|
|
var
|
|
LTyp: TJsonDataType;
|
|
begin
|
|
LTyp := FTyp;
|
|
if (LTyp <> jdtULong) or (AValue <> FValue.U) then
|
|
begin
|
|
if LTyp <> jdtNone then
|
|
Clear;
|
|
FTyp := jdtULong;
|
|
FValue.U := AValue;
|
|
end;
|
|
end;
|
|
|
|
function TJsonDataValue.GetFloatValue: Double;
|
|
begin
|
|
case FTyp of
|
|
jdtNone:
|
|
Result := 0;
|
|
jdtString:
|
|
Result := StrToFloat(string(FValue.S), JSONFormatSettings);
|
|
jdtInt:
|
|
Result := FValue.I;
|
|
jdtLong:
|
|
Result := FValue.L;
|
|
jdtULong:
|
|
Result := FValue.U;
|
|
jdtFloat:
|
|
Result := FValue.F;
|
|
jdtDateTime, jdtUtcDateTime:
|
|
Result := FValue.D;
|
|
jdtBool:
|
|
Result := Ord(FValue.B);
|
|
jdtObject:
|
|
begin
|
|
if not JsonSerializationConfig.NullConvertsToValueTypes or (FValue.O <> nil) then
|
|
TypeCastError(jdtFloat);
|
|
Result := 0;
|
|
end;
|
|
else
|
|
TypeCastError(jdtFloat);
|
|
Result := 0;
|
|
end;
|
|
end;
|
|
|
|
procedure TJsonDataValue.SetFloatValue(const AValue: Double);
|
|
var
|
|
LTyp: TJsonDataType;
|
|
begin
|
|
LTyp := FTyp;
|
|
if (LTyp <> jdtFloat) or (AValue <> FValue.F) then
|
|
begin
|
|
if LTyp <> jdtNone then
|
|
Clear;
|
|
FTyp := jdtFloat;
|
|
FValue.F := AValue;
|
|
end;
|
|
end;
|
|
|
|
function TJsonDataValue.GetDateTimeValue: TDateTime;
|
|
begin
|
|
case FTyp of
|
|
jdtNone:
|
|
Result := 0;
|
|
jdtString:
|
|
Result := TJsonBaseObject.JSONToDateTime(string(FValue.S));
|
|
jdtInt:
|
|
Result := FValue.I;
|
|
jdtLong:
|
|
Result := FValue.L;
|
|
jdtULong:
|
|
Result := FValue.U;
|
|
jdtFloat:
|
|
Result := FValue.F;
|
|
jdtDateTime:
|
|
Result := FValue.D;
|
|
jdtUtcDateTime:
|
|
Result := UtcDateTimeToLocalDateTime(FValue.D);
|
|
jdtBool:
|
|
Result := Ord(FValue.B);
|
|
jdtObject:
|
|
begin
|
|
if not JsonSerializationConfig.NullConvertsToValueTypes or (FValue.O <> nil) then
|
|
TypeCastError(jdtDateTime);
|
|
Result := 0;
|
|
end;
|
|
else
|
|
TypeCastError(jdtDateTime);
|
|
Result := 0;
|
|
end;
|
|
end;
|
|
|
|
procedure TJsonDataValue.SetDateTimeValue(const AValue: TDateTime);
|
|
var
|
|
LTyp: TJsonDataType;
|
|
begin
|
|
LTyp := FTyp;
|
|
if (LTyp <> jdtDateTime) or (AValue <> FValue.D) then
|
|
begin
|
|
if LTyp <> jdtNone then
|
|
Clear;
|
|
FTyp := jdtDateTime;
|
|
FValue.D := AValue;
|
|
end;
|
|
end;
|
|
|
|
function TJsonDataValue.GetUtcDateTimeValue: TDateTime;
|
|
begin
|
|
case FTyp of
|
|
jdtNone:
|
|
Result := 0;
|
|
jdtString:
|
|
Result := TJsonBaseObject.JSONToDateTime(string(FValue.S), False);
|
|
jdtInt:
|
|
Result := FValue.I;
|
|
jdtLong:
|
|
Result := FValue.L;
|
|
jdtULong:
|
|
Result := FValue.U;
|
|
jdtFloat:
|
|
Result := FValue.F;
|
|
jdtDateTime:
|
|
Result := LocalDateTimeToUtcDateTime(FValue.D);
|
|
jdtUtcDateTime:
|
|
Result := FValue.D;
|
|
jdtBool:
|
|
Result := Ord(FValue.B);
|
|
jdtObject:
|
|
begin
|
|
if not JsonSerializationConfig.NullConvertsToValueTypes or (FValue.O <> nil) then
|
|
TypeCastError(jdtDateTime);
|
|
Result := 0;
|
|
end;
|
|
else
|
|
TypeCastError(jdtUtcDateTime);
|
|
Result := 0;
|
|
end;
|
|
end;
|
|
|
|
procedure TJsonDataValue.SetUtcDateTimeValue(const AValue: TDateTime);
|
|
var
|
|
LTyp: TJsonDataType;
|
|
begin
|
|
LTyp := FTyp;
|
|
if (LTyp <> jdtUtcDateTime) or (AValue <> FValue.D) then
|
|
begin
|
|
if LTyp <> jdtNone then
|
|
Clear;
|
|
FTyp := jdtUtcDateTime;
|
|
FValue.D := AValue;
|
|
end;
|
|
end;
|
|
|
|
function TJsonDataValue.GetBoolValue: Boolean;
|
|
begin
|
|
case FTyp of
|
|
jdtNone:
|
|
Result := False;
|
|
jdtString:
|
|
Result := string(FValue.S) = 'true';
|
|
jdtInt:
|
|
Result := FValue.I <> 0;
|
|
jdtLong:
|
|
Result := FValue.L <> 0;
|
|
jdtULong:
|
|
Result := FValue.U <> 0;
|
|
jdtFloat:
|
|
Result := FValue.F <> 0;
|
|
jdtDateTime, jdtUtcDateTime:
|
|
Result := FValue.D <> 0;
|
|
jdtBool:
|
|
Result := FValue.B;
|
|
jdtObject:
|
|
begin
|
|
if not JsonSerializationConfig.NullConvertsToValueTypes or (FValue.O <> nil) then
|
|
TypeCastError(jdtBool);
|
|
Result := False;
|
|
end;
|
|
else
|
|
TypeCastError(jdtBool);
|
|
Result := False;
|
|
end;
|
|
end;
|
|
|
|
procedure TJsonDataValue.SetBoolValue(const AValue: Boolean);
|
|
var
|
|
LTyp: TJsonDataType;
|
|
begin
|
|
LTyp := FTyp;
|
|
if (LTyp <> jdtBool) or (AValue <> FValue.B) then
|
|
begin
|
|
if LTyp <> jdtNone then
|
|
Clear;
|
|
FTyp := jdtBool;
|
|
FValue.B := AValue;
|
|
end;
|
|
end;
|
|
|
|
function DoubleToText(Buffer: PChar; const Value: Extended): Integer; inline;
|
|
begin
|
|
Result := FloatToText(Buffer, Value, fvExtended, ffGeneral, 15, 0, JSONFormatSettings);
|
|
end;
|
|
|
|
const
|
|
DoubleDigits: array[0..99] of array[0..1] of Char = (
|
|
'00', '01', '02', '03', '04', '05', '06', '07', '08', '09',
|
|
'10', '11', '12', '13', '14', '15', '16', '17', '18', '19',
|
|
'20', '21', '22', '23', '24', '25', '26', '27', '28', '29',
|
|
'30', '31', '32', '33', '34', '35', '36', '37', '38', '39',
|
|
'40', '41', '42', '43', '44', '45', '46', '47', '48', '49',
|
|
'50', '51', '52', '53', '54', '55', '56', '57', '58', '59',
|
|
'60', '61', '62', '63', '64', '65', '66', '67', '68', '69',
|
|
'70', '71', '72', '73', '74', '75', '76', '77', '78', '79',
|
|
'80', '81', '82', '83', '84', '85', '86', '87', '88', '89',
|
|
'90', '91', '92', '93', '94', '95', '96', '97', '98', '99'
|
|
);
|
|
|
|
function InternIntToText(Value: Cardinal; Negative: Boolean; EndP: PChar): PChar;
|
|
var
|
|
I, Quotient, K: Cardinal;
|
|
begin
|
|
I := Value;
|
|
Result := EndP;
|
|
while I >= 100 do
|
|
begin
|
|
Quotient := I div 100;
|
|
K := Quotient * 100;
|
|
K := I - K;
|
|
I := Quotient;
|
|
Dec(Result, 2);
|
|
PLongWord(Result)^ := LongWord(DoubleDigits[K]);
|
|
end;
|
|
if I >= 10 then
|
|
begin
|
|
Dec(Result, 2);
|
|
PLongWord(Result)^ := LongWord(DoubleDigits[I]);
|
|
end
|
|
else
|
|
begin
|
|
Dec(Result);
|
|
Result^ := Char(I or Ord('0'));
|
|
end;
|
|
|
|
if Negative then
|
|
begin
|
|
Dec(Result);
|
|
Result^ := '-';
|
|
end;
|
|
end;
|
|
|
|
function IntToText(Value: Integer; EndP: PChar): PChar; inline;
|
|
begin
|
|
if Value < 0 then
|
|
Result := InternIntToText(Cardinal(-Value), True, EndP)
|
|
else
|
|
Result := InternIntToText(Cardinal(Value), False, EndP);
|
|
end;
|
|
|
|
function UInt64ToText(Value: UInt64; EndP: PChar): PChar;
|
|
var
|
|
Quotient: UInt64;
|
|
Remainder: Cardinal;
|
|
begin
|
|
Result := EndP;
|
|
|
|
while Value > High(Integer) do
|
|
begin
|
|
Quotient := Value div 100;
|
|
//Remainder := Value - (Quotient * 100);
|
|
Remainder := Value - (Quotient shl 6 + Quotient shl 5 + Quotient shl 2);
|
|
Value := Quotient;
|
|
|
|
Dec(Result, 2);
|
|
PLongWord(Result)^ := LongWord(DoubleDigits[Remainder]);
|
|
end;
|
|
|
|
Result := InternIntToText(Cardinal(Value), False, Result);
|
|
end;
|
|
|
|
function Int64ToText(Value: Int64; EndP: PChar): PChar;
|
|
var
|
|
Neg: Boolean;
|
|
begin
|
|
Neg := Value < 0;
|
|
if Neg then
|
|
Value := -Value;
|
|
|
|
Result := UInt64ToText(UInt64(Value), EndP);
|
|
|
|
if Neg then
|
|
begin
|
|
Dec(Result);
|
|
Result^ := '-';
|
|
end;
|
|
end;
|
|
|
|
procedure TJsonDataValue.InternToJSON(var Writer: TJsonOutputWriter);
|
|
var
|
|
Buffer: array[0..63] of Char;
|
|
P, BufEnd: PChar;
|
|
begin
|
|
case FTyp of
|
|
jdtNone:
|
|
Writer.AppendValue(sNull);
|
|
jdtString:
|
|
TJsonBaseObject.StrToJSONStr(Writer.AppendStrValue, string(FValue.S));
|
|
jdtInt:
|
|
begin
|
|
BufEnd := @PChar(@Buffer[0])[Length(Buffer)]; // extra typecast to work around a compiler bug (fixed in XE3)
|
|
P := IntToText(FValue.I, BufEnd);
|
|
Writer.AppendValue(P, BufEnd - P);
|
|
end;
|
|
jdtLong:
|
|
begin
|
|
BufEnd := @PChar(@Buffer[0])[Length(Buffer)]; // extra typecast to work around a compiler bug (fixed in XE3)
|
|
P := Int64ToText(FValue.L, BufEnd);
|
|
Writer.AppendValue(P, BufEnd - P);
|
|
end;
|
|
jdtULong:
|
|
begin
|
|
BufEnd := @PChar(@Buffer[0])[Length(Buffer)]; // extra typecast to work around a compiler bug (fixed in XE3)
|
|
P := UInt64ToText(FValue.U, BufEnd);
|
|
Writer.AppendValue(P, BufEnd - P);
|
|
end;
|
|
jdtFloat:
|
|
Writer.AppendValue(Buffer, DoubleToText(Buffer, FValue.F));
|
|
jdtDateTime:
|
|
TJsonBaseObject.DateTimeToJSONStr(Writer.AppendStrValue, FValue.D); // do the conversion in a function to prevent the compiler from creating a string intermediate in this method
|
|
jdtUtcDateTime:
|
|
TJsonBaseObject.UtcDateTimeToJSONStr(Writer.AppendStrValue, FValue.D); // do the conversion in a function to prevent the compiler from creating a string intermediate in this method
|
|
jdtBool:
|
|
if FValue.B then
|
|
Writer.AppendValue(sTrue)
|
|
else
|
|
Writer.AppendValue(sFalse);
|
|
jdtArray:
|
|
if (FValue.A = nil) or (TJsonArray(FValue.A).Count = 0) then
|
|
Writer.AppendValue('[]')
|
|
else
|
|
TJsonArray(FValue.A).InternToJSON(Writer);
|
|
jdtObject:
|
|
if FValue.O = nil then
|
|
Writer.AppendValue(sNull)
|
|
else
|
|
TJsonObject(FValue.O).InternToJSON(Writer);
|
|
end;
|
|
end;
|
|
|
|
{ TJsonBaseObject }
|
|
|
|
{$IFDEF USE_FAST_NEWINSTANCE}
|
|
class function TJsonBaseObject.NewInstance: TObject;
|
|
begin
|
|
Result := AllocMem(InstanceSize); // zeroes the new memory
|
|
PPointer(Result)^ := Self; // VMT
|
|
{$IFDEF AUTOREFCOUNT}
|
|
TJsonBaseObject(Result).FRefCount := 1;
|
|
{$ENDIF AUTOREFCOUNT}
|
|
end;
|
|
{$ENDIF ~USE_FAST_NEWINSTANCE}
|
|
|
|
{$IFDEF USE_FAST_AUTOREFCOUNT}
|
|
function TJsonBaseObject.ARCObjRelease: Integer;
|
|
begin
|
|
// Use a static call instead of the virtual method call
|
|
Result := inherited __ObjRelease;
|
|
end;
|
|
|
|
function TJsonBaseObject.ARCObjAddRef: Integer;
|
|
begin
|
|
// Inline __ObjAddRef to skip the virtual method call
|
|
Result := AtomicIncrement(FRefCount);
|
|
//Result := inherited __ObjAddRef;
|
|
end;
|
|
{$ENDIF USE_FAST_AUTOREFCOUNT}
|
|
|
|
class procedure TJsonBaseObject.StrToJSONStr(const AppendMethod: TWriterAppendMethod; const S: string);
|
|
var
|
|
P, EndP, F: PChar;
|
|
begin
|
|
P := PChar(Pointer(S));
|
|
if P <> nil then
|
|
begin
|
|
//EndP := P + Length(S); inlined Length introduces too much unnecessary code
|
|
EndP := P + PInteger(@PByte(S)[-4])^;
|
|
|
|
// find the first char that must be escaped
|
|
F := P;
|
|
// DCC64 generates "bt mem,reg" code
|
|
// while (P < EndP) and not (P^ in [#0..#31, '\', '"' {$IFDEF ESCAPE_SLASH_AFTER_LESSTHAN}, '/'{$ENDIF}]) do
|
|
// Inc(P);
|
|
while P < EndP do
|
|
case P^ of
|
|
#0..#31, '\', '"' {$IFDEF ESCAPE_SLASH_AFTER_LESSTHAN}, '/'{$ENDIF}: Break;
|
|
else
|
|
Inc(P);
|
|
end;
|
|
|
|
// nothing found, than it is easy
|
|
if P = EndP then
|
|
AppendMethod(PChar(S), Length(S))
|
|
else
|
|
EscapeStrToJSONStr(F, P, EndP, AppendMethod);
|
|
end
|
|
else
|
|
AppendMethod(nil, 0);
|
|
end;
|
|
|
|
class procedure TJsonBaseObject.DateTimeToJSONStr(const AppendMethod: TWriterAppendMethod; const Value: TDateTime);
|
|
var
|
|
S: string;
|
|
begin
|
|
S := TJsonBaseObject.DateTimeToJSON(Value, JsonSerializationConfig.UseUtcTime);
|
|
// StrToJSONStr isn't necessary because the date-time string doesn't contain any char
|
|
// that must be escaped.
|
|
AppendMethod(PChar(S), Length(S));
|
|
end;
|
|
|
|
class procedure TJsonBaseObject.UtcDateTimeToJSONStr(const AppendMethod: TWriterAppendMethod; const Value: TDateTime);
|
|
var
|
|
S: string;
|
|
begin
|
|
S := TJsonBaseObject.UtcDateTimeToJSON(Value);
|
|
// StrToJSONStr isn't necessary because the date-time string doesn't contain any char
|
|
// that must be escaped.
|
|
AppendMethod(PChar(S), Length(S));
|
|
end;
|
|
|
|
class procedure TJsonBaseObject.EscapeStrToJSONStr(F, P, EndP: PChar; const AppendMethod: TWriterAppendMethod);
|
|
const
|
|
HexChars: array[0..15] of Char = '0123456789abcdef';
|
|
var
|
|
Buf: TJsonOutputWriter.TJsonStringBuilder;
|
|
Ch: Char;
|
|
{$IFDEF ESCAPE_SLASH_AFTER_LESSTHAN}
|
|
StartP: PChar;
|
|
{$ENDIF ESCAPE_SLASH_AFTER_LESSTHAN}
|
|
begin
|
|
{$IFDEF ESCAPE_SLASH_AFTER_LESSTHAN}
|
|
StartP := F;
|
|
{$ENDIF ESCAPE_SLASH_AFTER_LESSTHAN}
|
|
|
|
Buf.Init;
|
|
try
|
|
repeat
|
|
if P <> F then
|
|
Buf.Append(F, P - F); // append the string part that doesn't need an escape sequence
|
|
if P < EndP then
|
|
begin
|
|
Ch := P^;
|
|
case Ch of
|
|
#0..#7, #11, #14..#31:
|
|
begin
|
|
Buf.Append('\u00', 4);
|
|
Buf.Append2(HexChars[Word(Ch) shr 4], HexChars[Word(Ch) and $F]);
|
|
end;
|
|
#8: Buf.Append('\b', 2);
|
|
#9: Buf.Append('\t', 2);
|
|
#10: Buf.Append('\n', 2);
|
|
#12: Buf.Append('\f', 2);
|
|
#13: Buf.Append('\r', 2);
|
|
'\': Buf.Append('\\', 2);
|
|
'"': Buf.Append('\"', 2);
|
|
{$IFDEF ESCAPE_SLASH_AFTER_LESSTHAN}
|
|
'/':
|
|
begin
|
|
if (P > StartP) and (P[-1] = '<') then // escape '/' only if we have '</' to support HTML <script>-Tag
|
|
Buf.Append('\/', 2)
|
|
else
|
|
Buf.Append('/', 1);
|
|
end;
|
|
{$ENDIF ESCAPE_SLASH_AFTER_LESSTHAN}
|
|
end;
|
|
Inc(P);
|
|
F := P;
|
|
// DCC64 generates "bt mem,reg" code
|
|
// while (P < EndP) and not (P^ in [#0..#31, '\', '"' {$IFDEF ESCAPE_SLASH_AFTER_LESSTHAN}, '/'{$ENDIF}]) do
|
|
// Inc(P);
|
|
while P < EndP do
|
|
case P^ of
|
|
#0..#31, '\', '"' {$IFDEF ESCAPE_SLASH_AFTER_LESSTHAN}, '/'{$ENDIF}: Break;
|
|
else
|
|
Inc(P);
|
|
end;
|
|
end
|
|
else
|
|
Break;
|
|
until False;
|
|
AppendMethod(Buf.Data, Buf.Len);
|
|
finally
|
|
Buf.Done;
|
|
end;
|
|
end;
|
|
|
|
class function TJsonBaseObject.ParseUtf8(S: PAnsiChar; Len: Integer{$IFDEF SUPPORT_PROGRESS}; AProgress: PJsonReaderProgressRec{$ENDIF}): TJsonBaseObject;
|
|
begin
|
|
Result := ParseUtf8Bytes(PByte(S), Len{$IFDEF SUPPORT_PROGRESS}, AProgress{$ENDIF});
|
|
end;
|
|
|
|
{$IFDEF SUPPORTS_UTF8STRING}
|
|
class function TJsonBaseObject.ParseUtf8(const S: UTF8String{$IFDEF SUPPORT_PROGRESS}; AProgress: PJsonReaderProgressRec{$ENDIF}): TJsonBaseObject;
|
|
begin
|
|
Result := ParseUtf8Bytes(PByte(S), Length(S){$IFDEF SUPPORT_PROGRESS}, AProgress{$ENDIF});
|
|
end;
|
|
{$ENDIF SUPPORTS_UTF8STRING}
|
|
|
|
class function TJsonBaseObject.ParseUtf8Bytes(S: PByte; Len: Integer{$IFDEF SUPPORT_PROGRESS}; AProgress: PJsonReaderProgressRec{$ENDIF}): TJsonBaseObject;
|
|
var
|
|
P: PByte;
|
|
L: Integer;
|
|
begin
|
|
if (S = nil) or (Len = 0) then
|
|
Result := nil
|
|
else
|
|
begin
|
|
if Len < 0 then
|
|
begin
|
|
{$IFDEF NEXTGEN}
|
|
Len := Utf8StrLen(S);
|
|
{$ELSE}
|
|
Len := StrLen(PAnsiChar(S));
|
|
{$ENDIF NEXTGEN}
|
|
end;
|
|
P := S;
|
|
L := Len;
|
|
while (L > 0) and (P^ <= 32) do
|
|
begin
|
|
Inc(P);
|
|
Dec(L);
|
|
end;
|
|
if L = 0 then
|
|
Result := nil
|
|
else
|
|
begin
|
|
if (L > 0) and (P^ = Byte(Ord('['))) then
|
|
Result := TJsonArray.Create
|
|
else
|
|
Result := TJsonObject.Create;
|
|
|
|
{$IFDEF AUTOREFCOUNT}
|
|
Result.FromUtf8JSON(S, Len{$IFDEF SUPPORT_PROGRESS}, AProgress{$ENDIF});
|
|
{$ELSE}
|
|
try
|
|
Result.FromUtf8JSON(S, Len{$IFDEF SUPPORT_PROGRESS}, AProgress{$ENDIF});
|
|
except
|
|
Result.Free;
|
|
raise;
|
|
end;
|
|
{$ENDIF AUTOREFCOUNT}
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
class function TJsonBaseObject.Parse(const S: UnicodeString{$IFDEF SUPPORT_PROGRESS}; AProgress: PJsonReaderProgressRec{$ENDIF}): TJsonBaseObject;
|
|
begin
|
|
Result := Parse(PWideChar(Pointer(S)), Length(S){$IFDEF SUPPORT_PROGRESS}, AProgress{$ENDIF});
|
|
end;
|
|
|
|
class function TJsonBaseObject.Parse(S: PWideChar; Len: Integer{$IFDEF SUPPORT_PROGRESS}; AProgress: PJsonReaderProgressRec{$ENDIF}): TJsonBaseObject;
|
|
var
|
|
P: PWideChar;
|
|
L: Integer;
|
|
begin
|
|
if (S = nil) or (Len = 0) then
|
|
Result := nil
|
|
else
|
|
begin
|
|
if Len < 0 then
|
|
Len := StrLen(S);
|
|
P := S;
|
|
L := Len;
|
|
while (L > 0) and (P^ <= #32) do
|
|
begin
|
|
Inc(P);
|
|
Dec(L);
|
|
end;
|
|
if L = 0 then
|
|
Result := nil
|
|
else
|
|
begin
|
|
if (L > 0) and (P^ = '[') then
|
|
Result := TJsonArray.Create
|
|
else
|
|
Result := TJsonObject.Create;
|
|
|
|
{$IFDEF AUTOREFCOUNT}
|
|
Result.FromJSON(S, Len{$IFDEF SUPPORT_PROGRESS}, AProgress{$ENDIF});
|
|
{$ELSE}
|
|
try
|
|
Result.FromJSON(S, Len{$IFDEF SUPPORT_PROGRESS}, AProgress{$ENDIF});
|
|
except
|
|
Result.Free;
|
|
raise;
|
|
end;
|
|
{$ENDIF AUTOREFCOUNT}
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
class function TJsonBaseObject.Parse(const Bytes: TBytes; Encoding: TEncoding; ByteIndex: Integer;
|
|
ByteCount: Integer{$IFDEF SUPPORT_PROGRESS}; AProgress: PJsonReaderProgressRec{$ENDIF}): TJsonBaseObject;
|
|
var
|
|
L: Integer;
|
|
begin
|
|
L := Length(Bytes);
|
|
if ByteCount = -1 then
|
|
ByteCount := L - ByteIndex;
|
|
if (ByteCount <= 0) or (ByteIndex + ByteCount > L) then
|
|
Result := nil
|
|
else
|
|
begin
|
|
if (Encoding = TEncoding.UTF8) or (Encoding = nil) then
|
|
Result := ParseUtf8Bytes(PByte(@Bytes[ByteIndex]), ByteCount{$IFDEF SUPPORT_PROGRESS}, AProgress{$ENDIF})
|
|
else if Encoding = TEncoding.Unicode then
|
|
Result := Parse(PWideChar(@Bytes[ByteIndex]), ByteCount div SizeOf(WideChar){$IFDEF SUPPORT_PROGRESS}, AProgress{$ENDIF})
|
|
else
|
|
Result := Parse(Encoding.GetString(Bytes, ByteIndex, ByteCount){$IFDEF SUPPORT_PROGRESS}, AProgress{$ENDIF});
|
|
end;
|
|
end;
|
|
|
|
class function TJsonBaseObject.ParseFromFile(const FileName: string; Utf8WithoutBOM: Boolean{$IFDEF SUPPORT_PROGRESS}; AProgress: PJsonReaderProgressRec{$ENDIF}): TJsonBaseObject;
|
|
var
|
|
Stream: TFileStream;
|
|
begin
|
|
Stream := TFileStream.Create(FileName, fmOpenRead or fmShareDenyWrite);
|
|
try
|
|
Result := ParseFromStream(Stream, nil, Utf8WithoutBOM{$IFDEF SUPPORT_PROGRESS}, AProgress{$ENDIF});
|
|
finally
|
|
Stream.Free;
|
|
end;
|
|
end;
|
|
|
|
class function TJsonBaseObject.ParseFromStream(Stream: TStream; Encoding: TEncoding; Utf8WithoutBOM: Boolean{$IFDEF SUPPORT_PROGRESS}; AProgress: PJsonReaderProgressRec{$ENDIF}): TJsonBaseObject;
|
|
var
|
|
StreamInfo: TStreamInfo;
|
|
S: string;
|
|
L: Integer;
|
|
begin
|
|
GetStreamBytes(Stream, Encoding, Utf8WithoutBOM, StreamInfo);
|
|
try
|
|
if Encoding = TEncoding.UTF8 then
|
|
Result := ParseUtf8Bytes(StreamInfo.Buffer, StreamInfo.Size{$IFDEF SUPPORT_PROGRESS}, AProgress{$ENDIF})
|
|
else if Encoding = TEncoding.Unicode then
|
|
Result := Parse(PWideChar(Pointer(StreamInfo.Buffer)), StreamInfo.Size div SizeOf(WideChar){$IFDEF SUPPORT_PROGRESS}, AProgress{$ENDIF})
|
|
else
|
|
begin
|
|
L := TEncodingStrictAccess(Encoding).GetCharCountEx(StreamInfo.Buffer, StreamInfo.Size);
|
|
SetLength(S, L);
|
|
if L > 0 then
|
|
TEncodingStrictAccess(Encoding).GetCharsEx(StreamInfo.Buffer, StreamInfo.Size, PChar(Pointer(S)), L)
|
|
else if StreamInfo.Size > 0 then
|
|
ErrorNoMappingForUnicodeCharacter;
|
|
|
|
// release memory
|
|
FreeMem(StreamInfo.AllocationBase);
|
|
StreamInfo.AllocationBase := nil;
|
|
|
|
Result := Parse(S{$IFDEF SUPPORT_PROGRESS}, AProgress{$ENDIF});
|
|
end;
|
|
finally
|
|
FreeMem(StreamInfo.AllocationBase);
|
|
end;
|
|
end;
|
|
|
|
{$IFDEF SUPPORTS_UTF8STRING}
|
|
procedure TJsonBaseObject.FromUtf8JSON(const S: UTF8String{$IFDEF SUPPORT_PROGRESS}; AProgress: PJsonReaderProgressRec{$ENDIF});
|
|
begin
|
|
FromUtf8JSON(PAnsiChar(Pointer(S)), Length(S){$IFDEF SUPPORT_PROGRESS}, AProgress{$ENDIF});
|
|
end;
|
|
{$ENDIF SUPPORTS_UTF8STRING}
|
|
|
|
procedure TJsonBaseObject.FromUtf8JSON(S: PAnsiChar; Len: Integer{$IFDEF SUPPORT_PROGRESS}; AProgress: PJsonReaderProgressRec{$ENDIF});
|
|
begin
|
|
FromUtf8JSON(PByte(S), Len{$IFDEF SUPPORT_PROGRESS}, AProgress{$ENDIF});
|
|
end;
|
|
|
|
procedure TJsonBaseObject.FromUtf8JSON(S: PByte; Len: Integer{$IFDEF SUPPORT_PROGRESS}; AProgress: PJsonReaderProgressRec{$ENDIF});
|
|
var
|
|
Reader: TJsonReader;
|
|
begin
|
|
if Len < 0 then
|
|
begin
|
|
{$IFDEF NEXTGEN}
|
|
Len := Utf8StrLen(S);
|
|
{$ELSE}
|
|
Len := StrLen(PAnsiChar(S));
|
|
{$ENDIF NEXTGEN}
|
|
end;
|
|
Reader := TUtf8JsonReader.Create(S, Len{$IFDEF SUPPORT_PROGRESS}, AProgress{$ENDIF});
|
|
try
|
|
Reader.Parse(Self);
|
|
finally
|
|
Reader.Free;
|
|
end;
|
|
end;
|
|
|
|
procedure TJsonBaseObject.FromJSON(const S: UnicodeString{$IFDEF SUPPORT_PROGRESS}; AProgress: PJsonReaderProgressRec{$ENDIF});
|
|
begin
|
|
FromJSON(PWideChar(S), Length(S){$IFDEF SUPPORT_PROGRESS}, AProgress{$ENDIF});
|
|
end;
|
|
|
|
procedure TJsonBaseObject.FromJSON(S: PWideChar; Len: Integer{$IFDEF SUPPORT_PROGRESS}; AProgress: PJsonReaderProgressRec{$ENDIF});
|
|
var
|
|
Reader: TJsonReader;
|
|
begin
|
|
if Len < 0 then
|
|
Len := StrLen(S);
|
|
Reader := TStringJsonReader.Create(S, Len{$IFDEF SUPPORT_PROGRESS}, AProgress{$ENDIF});
|
|
try
|
|
Reader.Parse(Self);
|
|
finally
|
|
Reader.Free;
|
|
end;
|
|
end;
|
|
|
|
procedure TJsonBaseObject.LoadFromFile(const FileName: string; Utf8WithoutBOM: Boolean{$IFDEF SUPPORT_PROGRESS}; AProgress: PJsonReaderProgressRec{$ENDIF});
|
|
var
|
|
Stream: TFileStream;
|
|
begin
|
|
Stream := TFileStream.Create(FileName, fmOpenRead or fmShareDenyWrite);
|
|
try
|
|
LoadFromStream(Stream, nil, Utf8WithoutBOM{$IFDEF SUPPORT_PROGRESS}, AProgress{$ENDIF});
|
|
finally
|
|
Stream.Free;
|
|
end;
|
|
end;
|
|
|
|
class procedure TJsonBaseObject.GetStreamBytes(Stream: TStream; var Encoding: TEncoding; Utf8WithoutBOM: Boolean;
|
|
var StreamInfo: TStreamInfo);
|
|
{$IFDEF WORKAROUND_NETWORK_FILE_INSUFFICIENT_RESOURCES}
|
|
const
|
|
MaxBufSize = 20 * 1024 * 1024;
|
|
var
|
|
ReadCount, ReadBufSize: NativeInt;
|
|
{$ENDIF WORKAROUND_NETWORK_FILE_INSUFFICIENT_RESOURCES}
|
|
var
|
|
Position: Int64;
|
|
Size: NativeInt;
|
|
Bytes: PByte;
|
|
BufStart: Integer;
|
|
begin
|
|
BufStart := 0;
|
|
Position := Stream.Position;
|
|
Size := Stream.Size - Position;
|
|
|
|
StreamInfo.Buffer := nil;
|
|
StreamInfo.Size := 0;
|
|
StreamInfo.AllocationBase := nil;
|
|
try
|
|
Bytes := nil;
|
|
if Size > 0 then
|
|
begin
|
|
if Stream is TCustomMemoryStream then
|
|
begin
|
|
Bytes := TCustomMemoryStream(Stream).Memory;
|
|
TCustomMemoryStream(Stream).Position := Position + Size;
|
|
Inc(Bytes, Position);
|
|
end
|
|
else
|
|
begin
|
|
GetMem(StreamInfo.AllocationBase, Size);
|
|
Bytes := StreamInfo.AllocationBase;
|
|
{$IFDEF WORKAROUND_NETWORK_FILE_INSUFFICIENT_RESOURCES}
|
|
if (Stream is THandleStream) and (Size > MaxBufSize) then
|
|
begin
|
|
ReadCount := Size;
|
|
// Read in 20 MB blocks to work around a network limitation in Windows 2003 or older (INSUFFICIENT RESOURCES)
|
|
while ReadCount > 0 do
|
|
begin
|
|
ReadBufSize := ReadCount;
|
|
if ReadBufSize > MaxBufSize then
|
|
ReadBufSize := MaxBufSize;
|
|
Stream.ReadBuffer(Bytes[Size - ReadCount], ReadBufSize);
|
|
Dec(ReadCount, ReadBufSize);
|
|
end;
|
|
end
|
|
else
|
|
{$ENDIF WORKAROUND_NETWORK_FILE_INSUFFICIENT_RESOURCES}
|
|
Stream.ReadBuffer(StreamInfo.AllocationBase^, Size);
|
|
end;
|
|
end;
|
|
|
|
if Encoding = nil then
|
|
begin
|
|
// Determine the encoding from the BOM
|
|
if Utf8WithoutBOM then
|
|
Encoding := TEncoding.UTF8
|
|
else
|
|
Encoding := TEncoding.Default;
|
|
|
|
if Size >= 2 then
|
|
begin
|
|
if (Bytes[0] = $EF) and (Bytes[1] = $BB) then
|
|
begin
|
|
if Bytes[2] = $BF then
|
|
begin
|
|
Encoding := TEncoding.UTF8;
|
|
BufStart := 3;
|
|
end;
|
|
end
|
|
else if (Bytes[0] = $FF) and (Bytes[1] = $FE) then
|
|
begin
|
|
if (Bytes[2] = 0) and (Bytes[3] = 0) then
|
|
begin
|
|
raise EJsonException.CreateRes(@RsUnsupportedFileEncoding);
|
|
//Result := bomUtf32LE;
|
|
//BufStart := 4;
|
|
end
|
|
else
|
|
begin
|
|
Encoding := TEncoding.Unicode;
|
|
BufStart := 2;
|
|
end;
|
|
end
|
|
else if (Bytes[0] = $FE) and (Bytes[1] = $FF) then
|
|
begin
|
|
Encoding := TEncoding.BigEndianUnicode;
|
|
BufStart := 2;
|
|
end
|
|
else if (Bytes[0] = 0) and (Bytes[1] = 0) and (Size >= 4) then
|
|
begin
|
|
if (Bytes[2] = $FE) and (Bytes[3] = $FF) then
|
|
begin
|
|
raise EJsonException.CreateRes(@RsUnsupportedFileEncoding);
|
|
//Result := bomUtf32BE;
|
|
//BufStart := 4;
|
|
end;
|
|
end;
|
|
end;
|
|
end;
|
|
Inc(Bytes, BufStart);
|
|
StreamInfo.Buffer := Bytes;
|
|
StreamInfo.Size := Size - BufStart;
|
|
except
|
|
FreeMem(StreamInfo.AllocationBase);
|
|
raise;
|
|
end;
|
|
end;
|
|
|
|
procedure TJsonBaseObject.LoadFromStream(Stream: TStream; Encoding: TEncoding; Utf8WithoutBOM: Boolean{$IFDEF SUPPORT_PROGRESS}; AProgress: PJsonReaderProgressRec{$ENDIF});
|
|
var
|
|
StreamInfo: TStreamInfo;
|
|
S: string;
|
|
L: Integer;
|
|
begin
|
|
GetStreamBytes(Stream, Encoding, Utf8WithoutBOM, StreamInfo);
|
|
try
|
|
if Encoding = TEncoding.UTF8 then
|
|
FromUtf8JSON(StreamInfo.Buffer, StreamInfo.Size{$IFDEF SUPPORT_PROGRESS}, AProgress{$ENDIF})
|
|
else if Encoding = TEncoding.Unicode then
|
|
FromJSON(PWideChar(Pointer(StreamInfo.Buffer)), StreamInfo.Size div SizeOf(WideChar){$IFDEF SUPPORT_PROGRESS}, AProgress{$ENDIF})
|
|
else
|
|
begin
|
|
L := TEncodingStrictAccess(Encoding).GetCharCountEx(StreamInfo.Buffer, StreamInfo.Size);
|
|
SetLength(S, L);
|
|
if L > 0 then
|
|
TEncodingStrictAccess(Encoding).GetCharsEx(StreamInfo.Buffer, StreamInfo.Size, PChar(Pointer(S)), L)
|
|
else if StreamInfo.Size > 0 then
|
|
ErrorNoMappingForUnicodeCharacter;
|
|
|
|
// release memory
|
|
FreeMem(StreamInfo.AllocationBase);
|
|
StreamInfo.AllocationBase := nil;
|
|
|
|
FromJSON(S{$IFDEF SUPPORT_PROGRESS}, AProgress{$ENDIF});
|
|
end;
|
|
finally
|
|
FreeMem(StreamInfo.AllocationBase);
|
|
end;
|
|
end;
|
|
|
|
procedure TJsonBaseObject.SaveToFile(const FileName: string; Compact: Boolean; Encoding: TEncoding; Utf8WithoutBOM: Boolean);
|
|
var
|
|
Stream: TStream;
|
|
begin
|
|
Stream := TFileStream.Create(FileName, fmCreate or fmShareDenyWrite);
|
|
try
|
|
SaveToStream(Stream, Compact, Encoding, Utf8WithoutBOM);
|
|
finally
|
|
Stream.Free;
|
|
end;
|
|
end;
|
|
|
|
procedure TJsonBaseObject.SaveToStream(Stream: TStream; Compact: Boolean; Encoding: TEncoding; Utf8WithoutBOM: Boolean);
|
|
var
|
|
Preamble: TBytes;
|
|
Writer: TJsonOutputWriter;
|
|
begin
|
|
if Utf8WithoutBOM and ((Encoding = TEncoding.UTF8) or (Encoding = nil)) then
|
|
Encoding := TEncoding.UTF8
|
|
else
|
|
begin
|
|
if Encoding = nil then
|
|
Encoding := TEncoding.Default;
|
|
|
|
Preamble := Encoding.GetPreamble;
|
|
if Preamble <> nil then
|
|
Stream.Write(Preamble[0], Length(Preamble));
|
|
end;
|
|
|
|
Writer.Init(Compact, Stream, Encoding, nil);
|
|
try
|
|
InternToJSON(Writer);
|
|
finally
|
|
Writer.StreamDone;
|
|
end;
|
|
end;
|
|
|
|
procedure TJsonBaseObject.SaveToLines(Lines: TStrings);
|
|
var
|
|
Writer: TJsonOutputWriter;
|
|
begin
|
|
Writer.Init(False, nil, nil, Lines);
|
|
try
|
|
InternToJSON(Writer);
|
|
finally
|
|
Writer.LinesDone;
|
|
end;
|
|
end;
|
|
|
|
function TJsonBaseObject.ToJSON(Compact: Boolean): string;
|
|
var
|
|
Writer: TJsonOutputWriter;
|
|
begin
|
|
Writer.Init(Compact, nil, nil, nil);
|
|
try
|
|
InternToJSON(Writer);
|
|
finally
|
|
Result := Writer.Done;
|
|
end;
|
|
end;
|
|
|
|
{$IFDEF SUPPORTS_UTF8STRING}
|
|
function TJsonBaseObject.ToUtf8JSON(Compact: Boolean = True): UTF8String;
|
|
var
|
|
Stream: TJsonUtf8StringStream;
|
|
Size: NativeInt;
|
|
begin
|
|
Stream := TJsonUtf8StringStream.Create;
|
|
try
|
|
SaveToStream(Stream, Compact, nil, True);
|
|
Result := Stream.DataString;
|
|
Size := Stream.Size;
|
|
finally
|
|
Stream.Free;
|
|
end;
|
|
if Length(Result) <> Size then
|
|
SetLength(Result, Size);
|
|
end;
|
|
{$ENDIF SUPPORTS_UTF8STRING}
|
|
|
|
procedure TJsonBaseObject.ToUtf8JSON(var Bytes: TBytes; Compact: Boolean = True);
|
|
var
|
|
Stream: TJsonBytesStream;
|
|
Size: NativeInt;
|
|
begin
|
|
Stream := TJsonBytesStream.Create;
|
|
try
|
|
SaveToStream(Stream, Compact, nil, True);
|
|
Size := Stream.Size;
|
|
Bytes := Stream.Bytes;
|
|
finally
|
|
Stream.Free;
|
|
end;
|
|
if Length(Bytes) <> Size then
|
|
ByteArraySetLengthUninit(Bytes, Size);
|
|
end;
|
|
|
|
function TJsonBaseObject.ToString: string;
|
|
begin
|
|
Result := ToJSON;
|
|
end;
|
|
|
|
class procedure TJsonBaseObject.InternInitAndAssignItem(Dest, Source: PJsonDataValue);
|
|
begin
|
|
Dest.FTyp := Source.FTyp;
|
|
case Source.Typ of
|
|
jdtString:
|
|
begin
|
|
Dest.FValue.P := nil;
|
|
string(Dest.FValue.S) := string(Source.FValue.S);
|
|
end;
|
|
jdtInt:
|
|
Dest.FValue.I := Source.FValue.I;
|
|
jdtLong:
|
|
Dest.FValue.L := Source.FValue.L;
|
|
jdtULong:
|
|
Dest.FValue.U := Source.FValue.U;
|
|
jdtFloat:
|
|
Dest.FValue.F := Source.FValue.F;
|
|
jdtDateTime, jdtUtcDateTime:
|
|
Dest.FValue.D := Source.FValue.D;
|
|
jdtBool:
|
|
Dest.FValue.B := Source.FValue.B;
|
|
jdtArray:
|
|
begin
|
|
{$IFDEF AUTOREFCOUNT}
|
|
Dest.FValue.A := nil;
|
|
{$ENDIF AUTOREFCOUNT}
|
|
if Source.FValue.A <> nil then
|
|
begin
|
|
{$IFDEF USE_FAST_AUTOREFCOUNT}
|
|
Dest.FValue.A := TJsonArray.Create;
|
|
TJsonArray(Dest.FValue.A).ARCObjAddRef;
|
|
{$ELSE}
|
|
TJsonArray(Dest.FValue.A) := TJsonArray.Create;
|
|
{$ENDIF USE_FAST_AUTOREFCOUNT}
|
|
TJsonArray(Dest.FValue.A).Assign(TJsonArray(Source.FValue.A));
|
|
end
|
|
{$IFNDEF AUTOREFCOUNT}
|
|
else
|
|
Dest.FValue.A := nil;
|
|
{$ENDIF ~AUTOREFCOUNT}
|
|
end;
|
|
jdtObject:
|
|
begin
|
|
{$IFDEF AUTOREFCOUNT}
|
|
Dest.FValue.O := nil;
|
|
{$ENDIF AUTOREFCOUNT}
|
|
if Source.FValue.O <> nil then
|
|
begin
|
|
{$IFDEF USE_FAST_AUTOREFCOUNT}
|
|
Dest.FValue.O := TJsonObject.Create;
|
|
TJsonObject(Dest.FValue.O).ARCObjAddRef;
|
|
{$ELSE}
|
|
TJsonObject(Dest.FValue.O) := TJsonObject.Create;
|
|
{$ENDIF USE_FAST_AUTOREFCOUNT}
|
|
TJsonObject(Dest.FValue.O).Assign(TJsonObject(Source.FValue.O));
|
|
end
|
|
{$IFNDEF AUTOREFCOUNT}
|
|
else
|
|
Dest.FValue.O := nil;
|
|
{$ENDIF ~AUTOREFCOUNT}
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
procedure TJsonDataValue.TypeCastError(ExpectedType: TJsonDataType);
|
|
begin
|
|
raise EJsonCastException.CreateResFmt(@RsTypeCastError,
|
|
[TJsonBaseObject.DataTypeNames[FTyp], TJsonBaseObject.DataTypeNames[ExpectedType]])
|
|
{$IFDEF HAS_RETURN_ADDRESS} at ReturnAddress{$ENDIF};
|
|
end;
|
|
|
|
{ TJsonArrayEnumerator }
|
|
|
|
constructor TJsonArrayEnumerator.Create(AArray: TJSonArray);
|
|
begin
|
|
FIndex := -1;
|
|
FArray := AArray;
|
|
end;
|
|
|
|
function TJsonArrayEnumerator.GetCurrent: TJsonDataValueHelper;
|
|
begin
|
|
Result := FArray[FIndex];
|
|
end;
|
|
|
|
function TJsonArrayEnumerator.MoveNext: Boolean;
|
|
begin
|
|
Result := FIndex < FArray.Count - 1;
|
|
if Result then
|
|
Inc(FIndex);
|
|
end;
|
|
|
|
{ TJsonArray }
|
|
|
|
destructor TJsonArray.Destroy;
|
|
begin
|
|
Clear;
|
|
FreeMem(FItems);
|
|
FItems := nil;
|
|
//inherited Destroy;
|
|
end;
|
|
|
|
procedure TJsonArray.Clear;
|
|
var
|
|
I: Integer;
|
|
begin
|
|
for I := 0 to FCount - 1 do
|
|
FItems[I].Clear;
|
|
FCount := 0;
|
|
end;
|
|
|
|
procedure TJsonArray.Delete(Index: Integer);
|
|
begin
|
|
if (Index < 0) or (Index >= FCount) then
|
|
ListError(@SListIndexError, Index);
|
|
FItems[Index].Clear;
|
|
Dec(FCount);
|
|
if Index < FCount then
|
|
Move(FItems[Index + 1], FItems[Index], (FCount - Index) * SizeOf(TJsonDataValue));
|
|
end;
|
|
|
|
function TJsonArray.AddItem: PJsonDataValue;
|
|
begin
|
|
if FCount = FCapacity then
|
|
Grow;
|
|
Result := @FItems[FCount];
|
|
Result.FTyp := jdtNone;
|
|
Result.FValue.P := nil;
|
|
Inc(FCount);
|
|
end;
|
|
|
|
function TJsonArray.InsertItem(Index: Integer): PJsonDataValue;
|
|
begin
|
|
if Cardinal(Index) > Cardinal(FCount) then
|
|
RaiseListError(Index);
|
|
|
|
if FCount = FCapacity then
|
|
Grow;
|
|
Result := @FItems[Index];
|
|
if Index < FCount then
|
|
Move(Result^, FItems[Index + 1], (FCount - Index) * SizeOf(TJsonDataValue));
|
|
Result.FTyp := jdtNone;
|
|
Result.FValue.P := nil;
|
|
Inc(FCount);
|
|
end;
|
|
|
|
procedure TJsonArray.Grow;
|
|
var
|
|
C, Delta: Integer;
|
|
begin
|
|
C := FCapacity;
|
|
if C > 64 then
|
|
Delta := C div 4
|
|
else if C > 8 then
|
|
Delta := 16
|
|
else
|
|
Delta := 4;
|
|
FCapacity := C + Delta;
|
|
InternApplyCapacity;
|
|
end;
|
|
|
|
procedure TJsonArray.InternApplyCapacity;
|
|
begin
|
|
ReallocMem(Pointer(FItems), FCapacity * SizeOf(TJsonDataValue));
|
|
end;
|
|
|
|
procedure TJsonArray.SetCapacity(const Value: Integer);
|
|
var
|
|
I: Integer;
|
|
begin
|
|
if Value <> FCapacity then
|
|
begin
|
|
if FCapacity < FCount then
|
|
begin
|
|
// delete all overlapping items
|
|
for I := FCapacity to FCount - 1 do
|
|
FItems[I].Clear;
|
|
FCount := FCapacity;
|
|
end;
|
|
FCapacity := Value;
|
|
InternApplyCapacity;
|
|
end;
|
|
end;
|
|
|
|
function TJsonArray.Extract(Index: Integer): TJsonBaseObject;
|
|
begin
|
|
if Items[Index].FTyp in [jdtNone, jdtArray, jdtObject] then
|
|
begin
|
|
Result := TJsonBaseObject(FItems[Index].FValue.O);
|
|
TJsonBaseObject(FItems[Index].FValue.O) := nil;
|
|
end
|
|
else
|
|
Result := nil;
|
|
Delete(Index);
|
|
end;
|
|
|
|
function TJsonArray.ExtractArray(Index: Integer): TJsonArray;
|
|
begin
|
|
Result := Extract(Index) as TJsonArray;
|
|
end;
|
|
|
|
function TJsonArray.ExtractObject(Index: Integer): TJsonObject;
|
|
begin
|
|
Result := Extract(Index) as TJsonObject;
|
|
end;
|
|
|
|
function TJsonArray.GetArray(Index: Integer): TJsonArray;
|
|
begin
|
|
{$IFDEF CHECK_ARRAY_INDEX}
|
|
if Cardinal(Index) >= Cardinal(FCount) then
|
|
RaiseListError(Index);
|
|
{$ENDIF CHECK_ARRAY_INDEX}
|
|
Result := FItems[Index].ArrayValue;
|
|
end;
|
|
|
|
function TJsonArray.GetBool(Index: Integer): Boolean;
|
|
begin
|
|
{$IFDEF CHECK_ARRAY_INDEX}
|
|
if Cardinal(Index) >= Cardinal(FCount) then
|
|
RaiseListError(Index);
|
|
{$ENDIF CHECK_ARRAY_INDEX}
|
|
Result := FItems[Index].BoolValue;
|
|
end;
|
|
|
|
{$IFDEF BCB}
|
|
function TJsonArray.GetObj(Index: Integer): TJsonObject;
|
|
begin
|
|
{$IFDEF CHECK_ARRAY_INDEX}
|
|
if Cardinal(Index) >= Cardinal(FCount) then
|
|
RaiseListError(Index);
|
|
{$ENDIF CHECK_ARRAY_INDEX}
|
|
Result := FItems[Index].ObjectValue;
|
|
end;
|
|
{$ELSE}
|
|
function TJsonArray.GetObject(Index: Integer): TJsonObject;
|
|
begin
|
|
{$IFDEF CHECK_ARRAY_INDEX}
|
|
if Cardinal(Index) >= Cardinal(FCount) then
|
|
RaiseListError(Index);
|
|
{$ENDIF CHECK_ARRAY_INDEX}
|
|
Result := FItems[Index].ObjectValue;
|
|
end;
|
|
{$ENDIF BCB}
|
|
|
|
function TJsonArray.GetVariant(Index: Integer): Variant;
|
|
begin
|
|
{$IFDEF CHECK_ARRAY_INDEX}
|
|
if Cardinal(Index) >= Cardinal(FCount) then
|
|
RaiseListError(Index);
|
|
{$ENDIF CHECK_ARRAY_INDEX}
|
|
Result := FItems[Index].VariantValue;
|
|
end;
|
|
|
|
function TJsonArray.GetInt(Index: Integer): Integer;
|
|
begin
|
|
{$IFDEF CHECK_ARRAY_INDEX}
|
|
if Cardinal(Index) >= Cardinal(FCount) then
|
|
RaiseListError(Index);
|
|
{$ENDIF CHECK_ARRAY_INDEX}
|
|
Result := FItems[Index].IntValue;
|
|
end;
|
|
|
|
function TJsonArray.GetLong(Index: Integer): Int64;
|
|
begin
|
|
{$IFDEF CHECK_ARRAY_INDEX}
|
|
if Cardinal(Index) >= Cardinal(FCount) then
|
|
RaiseListError(Index);
|
|
{$ENDIF CHECK_ARRAY_INDEX}
|
|
Result := FItems[Index].LongValue;
|
|
end;
|
|
|
|
function TJsonArray.GetULong(Index: Integer): UInt64;
|
|
begin
|
|
{$IFDEF CHECK_ARRAY_INDEX}
|
|
if Cardinal(Index) >= Cardinal(FCount) then
|
|
RaiseListError(Index);
|
|
{$ENDIF CHECK_ARRAY_INDEX}
|
|
Result := FItems[Index].ULongValue;
|
|
end;
|
|
|
|
function TJsonArray.GetFloat(Index: Integer): Double;
|
|
begin
|
|
{$IFDEF CHECK_ARRAY_INDEX}
|
|
if Cardinal(Index) >= Cardinal(FCount) then
|
|
RaiseListError(Index);
|
|
{$ENDIF CHECK_ARRAY_INDEX}
|
|
Result := FItems[Index].FloatValue;
|
|
end;
|
|
|
|
function TJsonArray.GetDateTime(Index: Integer): TDateTime;
|
|
begin
|
|
{$IFDEF CHECK_ARRAY_INDEX}
|
|
if Cardinal(Index) >= Cardinal(FCount) then
|
|
RaiseListError(Index);
|
|
{$ENDIF CHECK_ARRAY_INDEX}
|
|
Result := FItems[Index].DateTimeValue;
|
|
end;
|
|
|
|
function TJsonArray.GetUtcDateTime(Index: Integer): TDateTime;
|
|
begin
|
|
{$IFDEF CHECK_ARRAY_INDEX}
|
|
if Cardinal(Index) >= Cardinal(FCount) then
|
|
RaiseListError(Index);
|
|
{$ENDIF CHECK_ARRAY_INDEX}
|
|
Result := FItems[Index].UtcDateTimeValue;
|
|
end;
|
|
|
|
function TJsonArray.GetItem(Index: Integer): PJsonDataValue;
|
|
begin
|
|
{$IFDEF CHECK_ARRAY_INDEX}
|
|
if Cardinal(Index) >= Cardinal(FCount) then
|
|
RaiseListError(Index);
|
|
{$ENDIF CHECK_ARRAY_INDEX}
|
|
Result := @FItems[Index];
|
|
end;
|
|
|
|
function TJsonArray.GetString(Index: Integer): string;
|
|
begin
|
|
{$IFDEF CHECK_ARRAY_INDEX}
|
|
if Cardinal(Index) >= Cardinal(FCount) then
|
|
RaiseListError(Index);
|
|
{$ENDIF CHECK_ARRAY_INDEX}
|
|
Result := FItems[Index].Value;
|
|
end;
|
|
|
|
procedure TJsonArray.Add(const AValue: TJsonObject);
|
|
var
|
|
Data: PJsonDataValue;
|
|
begin
|
|
Data := AddItem;
|
|
Data.ObjectValue := AValue;
|
|
end;
|
|
|
|
procedure TJsonArray.Add(const AValue: TJsonArray);
|
|
var
|
|
Data: PJsonDataValue;
|
|
begin
|
|
Data := AddItem;
|
|
Data.ArrayValue := AValue;
|
|
end;
|
|
|
|
procedure TJsonArray.Add(const AValue: Boolean);
|
|
var
|
|
Data: PJsonDataValue;
|
|
begin
|
|
Data := AddItem;
|
|
Data.BoolValue := AValue;
|
|
end;
|
|
|
|
procedure TJsonArray.Add(const AValue: Integer);
|
|
var
|
|
Data: PJsonDataValue;
|
|
begin
|
|
Data := AddItem;
|
|
Data.IntValue := AValue;
|
|
end;
|
|
|
|
procedure TJsonArray.Add(const AValue: Int64);
|
|
var
|
|
Data: PJsonDataValue;
|
|
begin
|
|
Data := AddItem;
|
|
Data.LongValue := AValue;
|
|
end;
|
|
|
|
procedure TJsonArray.Add(const AValue: UInt64);
|
|
var
|
|
Data: PJsonDataValue;
|
|
begin
|
|
Data := AddItem;
|
|
Data.ULongValue := AValue;
|
|
end;
|
|
|
|
procedure TJsonArray.Add(const AValue: Double);
|
|
var
|
|
Data: PJsonDataValue;
|
|
begin
|
|
Data := AddItem;
|
|
Data.FloatValue := AValue;
|
|
end;
|
|
|
|
procedure TJsonArray.Add(const AValue: TDateTime);
|
|
var
|
|
Data: PJsonDataValue;
|
|
begin
|
|
Data := AddItem;
|
|
Data.DateTimeValue := AValue;
|
|
end;
|
|
|
|
procedure TJsonArray.AddUtcDateTime(const AValue: TDateTime);
|
|
var
|
|
Data: PJsonDataValue;
|
|
begin
|
|
Data := AddItem;
|
|
Data.UtcDateTimeValue := AValue;
|
|
end;
|
|
|
|
procedure TJsonArray.Add(const AValue: string);
|
|
var
|
|
Data: PJsonDataValue;
|
|
begin
|
|
Data := AddItem;
|
|
Data.Value := AValue;
|
|
end;
|
|
|
|
procedure TJsonArray.Add(const AValue: Variant);
|
|
var
|
|
Data: PJsonDataValue;
|
|
begin
|
|
VarTypeToJsonDataType(VarType(AValue)); // Handle type-check exception before adding the item
|
|
Data := AddItem;
|
|
Data.VariantValue := AValue;
|
|
end;
|
|
|
|
function TJsonArray.AddArray: TJsonArray;
|
|
begin
|
|
{$IFDEF USE_FAST_AUTOREFCOUNT}
|
|
if Result <> nil then
|
|
Result.ARCObjRelease;
|
|
Pointer(Result) := TJsonArray.Create;
|
|
Result.ARCObjAddRef;
|
|
{$ELSE}
|
|
Result := TJsonArray.Create;
|
|
{$ENDIF USE_FAST_AUTOREFCOUNT}
|
|
Add(Result);
|
|
end;
|
|
|
|
function TJsonArray.AddObject: TJsonObject;
|
|
begin
|
|
{$IFDEF USE_FAST_AUTOREFCOUNT}
|
|
if Result <> nil then
|
|
Result.ARCObjRelease;
|
|
Pointer(Result) := TJsonObject.Create;
|
|
Result.ARCObjAddRef;
|
|
{$ELSE}
|
|
Result := TJsonObject.Create;
|
|
{$ENDIF USE_FAST_AUTOREFCOUNT}
|
|
Add(Result);
|
|
end;
|
|
|
|
procedure TJsonArray.AddObject(const Value: TJsonObject);
|
|
begin
|
|
Add(Value);
|
|
end;
|
|
|
|
procedure TJsonArray.Insert(Index: Integer; const AValue: TJsonObject);
|
|
var
|
|
Data: PJsonDataValue;
|
|
begin
|
|
Data := InsertItem(Index);
|
|
Data.ObjectValue := AValue;
|
|
end;
|
|
|
|
procedure TJsonArray.Insert(Index: Integer; const AValue: TJsonArray);
|
|
var
|
|
Data: PJsonDataValue;
|
|
begin
|
|
Data := InsertItem(Index);
|
|
Data.ArrayValue := AValue;
|
|
end;
|
|
|
|
procedure TJsonArray.Insert(Index: Integer; const AValue: Boolean);
|
|
var
|
|
Data: PJsonDataValue;
|
|
begin
|
|
Data := InsertItem(Index);
|
|
Data.BoolValue := AValue;
|
|
end;
|
|
|
|
procedure TJsonArray.Insert(Index: Integer; const AValue: Integer);
|
|
var
|
|
Data: PJsonDataValue;
|
|
begin
|
|
Data := InsertItem(Index);
|
|
Data.IntValue := AValue;
|
|
end;
|
|
|
|
procedure TJsonArray.Insert(Index: Integer; const AValue: Int64);
|
|
var
|
|
Data: PJsonDataValue;
|
|
begin
|
|
Data := InsertItem(Index);
|
|
Data.LongValue := AValue;
|
|
end;
|
|
|
|
procedure TJsonArray.Insert(Index: Integer; const AValue: UInt64);
|
|
var
|
|
Data: PJsonDataValue;
|
|
begin
|
|
Data := InsertItem(Index);
|
|
Data.ULongValue := AValue;
|
|
end;
|
|
|
|
procedure TJsonArray.Insert(Index: Integer; const AValue: Double);
|
|
var
|
|
Data: PJsonDataValue;
|
|
begin
|
|
Data := InsertItem(Index);
|
|
Data.FloatValue := AValue;
|
|
end;
|
|
|
|
procedure TJsonArray.Insert(Index: Integer; const AValue: TDateTime);
|
|
var
|
|
Data: PJsonDataValue;
|
|
begin
|
|
Data := InsertItem(Index);
|
|
Data.DateTimeValue := AValue;
|
|
end;
|
|
|
|
procedure TJsonArray.InsertUtcDateTime(Index: Integer; const AValue: TDateTime);
|
|
var
|
|
Data: PJsonDataValue;
|
|
begin
|
|
Data := InsertItem(Index);
|
|
Data.UtcDateTimeValue := AValue;
|
|
end;
|
|
|
|
procedure TJsonArray.Insert(Index: Integer; const AValue: string);
|
|
var
|
|
Data: PJsonDataValue;
|
|
begin
|
|
Data := InsertItem(Index);
|
|
Data.Value := AValue;
|
|
end;
|
|
|
|
procedure TJsonArray.Insert(Index: Integer; const AValue: Variant);
|
|
var
|
|
Data: PJsonDataValue;
|
|
begin
|
|
VarTypeToJsonDataType(VarType(AValue)); // Handle type-check exception before inserting the item
|
|
Data := InsertItem(Index);
|
|
Data.VariantValue := AValue;
|
|
end;
|
|
|
|
function TJsonArray.InsertArray(Index: Integer): TJsonArray;
|
|
begin
|
|
Result := TJsonArray.Create;
|
|
{$IFDEF AUTOREFCOUNT}
|
|
Insert(Index, Result);
|
|
{$ELSE}
|
|
try
|
|
Insert(Index, Result);
|
|
except
|
|
Result.Free;
|
|
raise;
|
|
end;
|
|
{$ENDIF AUTOREFCOUNT}
|
|
end;
|
|
|
|
function TJsonArray.InsertObject(Index: Integer): TJsonObject;
|
|
begin
|
|
Result := TJsonObject.Create;
|
|
{$IFDEF AUTOREFCOUNT}
|
|
Insert(Index, Result);
|
|
{$ELSE}
|
|
try
|
|
Insert(Index, Result);
|
|
except
|
|
Result.Free;
|
|
raise;
|
|
end;
|
|
{$ENDIF AUTOREFCOUNT}
|
|
end;
|
|
|
|
procedure TJsonArray.InsertObject(Index: Integer; const Value: TJsonObject);
|
|
begin
|
|
{$IFDEF CHECK_ARRAY_INDEX}
|
|
if Cardinal(Index) >= Cardinal(FCount) then
|
|
RaiseListError(Index);
|
|
{$ENDIF CHECK_ARRAY_INDEX}
|
|
Insert(Index, Value);
|
|
end;
|
|
|
|
function TJsonArray.GetEnumerator: TJsonArrayEnumerator;
|
|
begin
|
|
Result := TJsonArrayEnumerator.Create(Self);
|
|
end;
|
|
|
|
function TJsonArray.IsNull(Index: Integer): Boolean;
|
|
begin
|
|
{$IFDEF CHECK_ARRAY_INDEX}
|
|
if Cardinal(Index) >= Cardinal(FCount) then
|
|
RaiseListError(Index);
|
|
{$ENDIF CHECK_ARRAY_INDEX}
|
|
Result := FItems[Index].IsNull
|
|
end;
|
|
|
|
procedure TJsonArray.SetString(Index: Integer; const Value: string);
|
|
begin
|
|
{$IFDEF CHECK_ARRAY_INDEX}
|
|
if Cardinal(Index) >= Cardinal(FCount) then
|
|
RaiseListError(Index);
|
|
{$ENDIF CHECK_ARRAY_INDEX}
|
|
FItems[Index].Value := Value;
|
|
end;
|
|
|
|
procedure TJsonArray.SetInt(Index: Integer; const Value: Integer);
|
|
begin
|
|
{$IFDEF CHECK_ARRAY_INDEX}
|
|
if Cardinal(Index) >= Cardinal(FCount) then
|
|
RaiseListError(Index);
|
|
{$ENDIF CHECK_ARRAY_INDEX}
|
|
FItems[Index].IntValue := Value;
|
|
end;
|
|
|
|
procedure TJsonArray.SetLong(Index: Integer; const Value: Int64);
|
|
begin
|
|
{$IFDEF CHECK_ARRAY_INDEX}
|
|
if Cardinal(Index) >= Cardinal(FCount) then
|
|
RaiseListError(Index);
|
|
{$ENDIF CHECK_ARRAY_INDEX}
|
|
FItems[Index].LongValue := Value;
|
|
end;
|
|
|
|
procedure TJsonArray.SetULong(Index: Integer; const Value: UInt64);
|
|
begin
|
|
{$IFDEF CHECK_ARRAY_INDEX}
|
|
if Cardinal(Index) >= Cardinal(FCount) then
|
|
RaiseListError(Index);
|
|
{$ENDIF CHECK_ARRAY_INDEX}
|
|
FItems[Index].ULongValue := Value;
|
|
end;
|
|
|
|
procedure TJsonArray.SetFloat(Index: Integer; const Value: Double);
|
|
begin
|
|
{$IFDEF CHECK_ARRAY_INDEX}
|
|
if Cardinal(Index) >= Cardinal(FCount) then
|
|
RaiseListError(Index);
|
|
{$ENDIF CHECK_ARRAY_INDEX}
|
|
FItems[Index].FloatValue := Value;
|
|
end;
|
|
|
|
procedure TJsonArray.SetDateTime(Index: Integer; const Value: TDateTime);
|
|
begin
|
|
{$IFDEF CHECK_ARRAY_INDEX}
|
|
if Cardinal(Index) >= Cardinal(FCount) then
|
|
RaiseListError(Index);
|
|
{$ENDIF CHECK_ARRAY_INDEX}
|
|
FItems[Index].DateTimeValue := Value;
|
|
end;
|
|
|
|
procedure TJsonArray.SetUtcDateTime(Index: Integer; const Value: TDateTime);
|
|
begin
|
|
{$IFDEF CHECK_ARRAY_INDEX}
|
|
if Cardinal(Index) >= Cardinal(FCount) then
|
|
RaiseListError(Index);
|
|
{$ENDIF CHECK_ARRAY_INDEX}
|
|
FItems[Index].UtcDateTimeValue := Value;
|
|
end;
|
|
|
|
procedure TJsonArray.SetBool(Index: Integer; const Value: Boolean);
|
|
begin
|
|
{$IFDEF CHECK_ARRAY_INDEX}
|
|
if Cardinal(Index) >= Cardinal(FCount) then
|
|
RaiseListError(Index);
|
|
{$ENDIF CHECK_ARRAY_INDEX}
|
|
FItems[Index].BoolValue := Value;
|
|
end;
|
|
|
|
procedure TJsonArray.SetArray(Index: Integer; const Value: TJsonArray);
|
|
begin
|
|
{$IFDEF CHECK_ARRAY_INDEX}
|
|
if Cardinal(Index) >= Cardinal(FCount) then
|
|
RaiseListError(Index);
|
|
{$ENDIF CHECK_ARRAY_INDEX}
|
|
FItems[Index].ArrayValue := Value;
|
|
end;
|
|
|
|
procedure TJsonArray.SetObject(Index: Integer; const Value: TJsonObject);
|
|
begin
|
|
{$IFDEF CHECK_ARRAY_INDEX}
|
|
if Cardinal(Index) >= Cardinal(FCount) then
|
|
RaiseListError(Index);
|
|
{$ENDIF CHECK_ARRAY_INDEX}
|
|
FItems[Index].ObjectValue := Value;
|
|
end;
|
|
|
|
procedure TJsonArray.SetVariant(Index: Integer; const Value: Variant);
|
|
begin
|
|
{$IFDEF CHECK_ARRAY_INDEX}
|
|
if Cardinal(Index) >= Cardinal(FCount) then
|
|
RaiseListError(Index);
|
|
{$ENDIF CHECK_ARRAY_INDEX}
|
|
FItems[Index].VariantValue := Value;
|
|
end;
|
|
|
|
function TJsonArray.GetType(Index: Integer): TJsonDataType;
|
|
begin
|
|
{$IFDEF CHECK_ARRAY_INDEX}
|
|
if Cardinal(Index) >= Cardinal(FCount) then
|
|
RaiseListError(Index);
|
|
{$ENDIF CHECK_ARRAY_INDEX}
|
|
Result := FItems[Index].Typ;
|
|
end;
|
|
|
|
function TJsonArray.GetValue(Index: Integer): TJsonDataValueHelper;
|
|
begin
|
|
{$IFDEF CHECK_ARRAY_INDEX}
|
|
if Cardinal(Index) >= Cardinal(FCount) then
|
|
RaiseListError(Index);
|
|
{$ENDIF CHECK_ARRAY_INDEX}
|
|
Result.FData.FIntern := @FItems[Index];
|
|
Result.FData.FTyp := jdtNone;
|
|
end;
|
|
|
|
procedure TJsonArray.SetValue(Index: Integer; const Value: TJsonDataValueHelper);
|
|
begin
|
|
{$IFDEF CHECK_ARRAY_INDEX}
|
|
if Cardinal(Index) >= Cardinal(FCount) then
|
|
RaiseListError(Index);
|
|
{$ENDIF CHECK_ARRAY_INDEX}
|
|
TJsonDataValueHelper.SetInternValue(@FItems[Index], Value);
|
|
end;
|
|
|
|
procedure TJsonArray.InternToJSON(var Writer: TJsonOutputWriter);
|
|
var
|
|
I: Integer;
|
|
begin
|
|
if FCount = 0 then
|
|
Writer.AppendValue('[]')
|
|
else
|
|
begin
|
|
Writer.Indent('[');
|
|
FItems[0].InternToJSON(Writer);
|
|
for I := 1 to FCount - 1 do
|
|
begin
|
|
Writer.AppendSeparator(',');
|
|
FItems[I].InternToJSON(Writer);
|
|
end;
|
|
Writer.Unindent(']');
|
|
end;
|
|
end;
|
|
|
|
procedure TJsonArray.Assign(ASource: TJsonArray);
|
|
var
|
|
I: Integer;
|
|
begin
|
|
Clear;
|
|
if ASource <> nil then
|
|
begin
|
|
if FCapacity < ASource.Count then
|
|
begin
|
|
FCapacity := ASource.Count;
|
|
ReallocMem(FItems, ASource.Count * SizeOf(TJsonDataValue));
|
|
end;
|
|
FCount := ASource.Count;
|
|
for I := 0 to ASource.Count - 1 do
|
|
InternInitAndAssignItem(@FItems[I], @ASource.FItems[I]);
|
|
end
|
|
else
|
|
begin
|
|
FreeMem(FItems);
|
|
FCapacity := 0;
|
|
end;
|
|
end;
|
|
|
|
function TJsonArray.Clone: TJsonArray;
|
|
begin
|
|
Result := TJsonArray.Create;
|
|
try
|
|
TJsonArray(Result).Assign(Self);
|
|
except
|
|
Result.Free;
|
|
raise;
|
|
end;
|
|
end;
|
|
|
|
class procedure TJsonArray.RaiseListError(Index: Integer);
|
|
begin
|
|
ListError(@SListIndexError, Index);
|
|
end;
|
|
|
|
procedure TJsonArray.SetCount(const Value: Integer);
|
|
var
|
|
I: Integer;
|
|
begin
|
|
if Value <> FCount then
|
|
begin
|
|
SetCapacity(Value);
|
|
// Initialize new Items to "null"
|
|
for I := FCount to Value - 1 do
|
|
begin
|
|
FItems[I].FTyp := jdtObject;
|
|
FItems[I].FValue.P := nil;
|
|
end;
|
|
FCount := Value;
|
|
end;
|
|
end;
|
|
|
|
{ TJsonObjectEnumerator }
|
|
|
|
constructor TJsonObjectEnumerator.Create(AObject: TJsonObject);
|
|
begin
|
|
FIndex := -1;
|
|
FObject := AObject;
|
|
end;
|
|
|
|
function TJsonObjectEnumerator.MoveNext: Boolean;
|
|
begin
|
|
Result := FIndex < FObject.Count - 1;
|
|
if Result then
|
|
Inc(FIndex);
|
|
end;
|
|
|
|
function TJsonObjectEnumerator.GetCurrent: TJsonNameValuePair;
|
|
begin
|
|
Result.Name := FObject.Names[FIndex];
|
|
Result.Value.FData.FIntern := FObject.Items[FIndex];
|
|
Result.Value.FData.FTyp := jdtNone;
|
|
end;
|
|
|
|
{ TJsonObject }
|
|
|
|
destructor TJsonObject.Destroy;
|
|
begin
|
|
Clear;
|
|
FreeMem(FItems);
|
|
FreeMem(FNames);
|
|
//inherited Destroy;
|
|
end;
|
|
|
|
{$IFDEF USE_LAST_NAME_STRING_LITERAL_CACHE}
|
|
procedure TJsonObject.UpdateLastValueItem(const Name: string; Item: PJsonDataValue);
|
|
begin
|
|
if (Pointer(Name) <> nil) and (PInteger(@PByte(Name)[-8])^ = -1) then // string literal
|
|
begin
|
|
FLastValueItem := Item;
|
|
FLastValueItemNamePtr := Pointer(Name);
|
|
end
|
|
else
|
|
FLastValueItem := nil;
|
|
end;
|
|
{$ENDIF USE_LAST_NAME_STRING_LITERAL_CACHE}
|
|
|
|
procedure TJsonObject.Grow;
|
|
var
|
|
C, Delta: Integer;
|
|
begin
|
|
C := FCapacity;
|
|
if C > 64 then
|
|
Delta := C div 4
|
|
else if C > 8 then
|
|
Delta := 16
|
|
else
|
|
Delta := 4;
|
|
FCapacity := C + Delta;
|
|
InternApplyCapacity;
|
|
end;
|
|
|
|
procedure TJsonObject.InternApplyCapacity;
|
|
begin
|
|
{$IFDEF USE_LAST_NAME_STRING_LITERAL_CACHE}
|
|
FLastValueItem := nil;
|
|
{$ENDIF USE_LAST_NAME_STRING_LITERAL_CACHE}
|
|
ReallocMem(Pointer(FItems), FCapacity * SizeOf(FItems[0]));
|
|
ReallocMem(Pointer(FNames), FCapacity * SizeOf(FNames[0]));
|
|
end;
|
|
|
|
procedure TJsonObject.SetCapacity(const Value: Integer);
|
|
var
|
|
I: Integer;
|
|
begin
|
|
if Value <> FCapacity then
|
|
begin
|
|
if FCapacity < FCount then
|
|
begin
|
|
// delete all overlapping items
|
|
for I := FCapacity to FCount - 1 do
|
|
begin
|
|
FNames[I] := '';
|
|
FItems[I].Clear;
|
|
end;
|
|
FCount := FCapacity;
|
|
end;
|
|
FCapacity := Value;
|
|
InternApplyCapacity;
|
|
end;
|
|
end;
|
|
|
|
procedure TJsonObject.Clear;
|
|
var
|
|
I: Integer;
|
|
begin
|
|
{$IFDEF USE_LAST_NAME_STRING_LITERAL_CACHE}
|
|
FLastValueItem := nil;
|
|
{$ENDIF USE_LAST_NAME_STRING_LITERAL_CACHE}
|
|
for I := 0 to FCount - 1 do
|
|
begin
|
|
FNames[I] := '';
|
|
FItems[I].Clear;
|
|
end;
|
|
FCount := 0;
|
|
end;
|
|
|
|
procedure TJsonObject.Remove(const Name: string);
|
|
var
|
|
Idx: Integer;
|
|
begin
|
|
Idx := IndexOf(Name);
|
|
if Idx <> -1 then
|
|
Delete(Idx);
|
|
end;
|
|
|
|
function TJsonObject.Extract(const Name: string): TJsonBaseObject;
|
|
var
|
|
Index: Integer;
|
|
begin
|
|
Index := IndexOf(Name);
|
|
if Index <> -1 then
|
|
begin
|
|
if FItems[Index].FTyp in [jdtNone, jdtArray, jdtObject] then
|
|
begin
|
|
Result := TJsonBaseObject(FItems[Index].FValue.O);
|
|
TJsonBaseObject(FItems[Index].FValue.O) := nil;
|
|
end
|
|
else
|
|
Result := nil;
|
|
Delete(Index);
|
|
end
|
|
else
|
|
Result := nil;
|
|
end;
|
|
|
|
function TJsonObject.ExtractArray(const Name: string): TJsonArray;
|
|
begin
|
|
Result := Extract(Name) as TJsonArray;
|
|
end;
|
|
|
|
function TJsonObject.ExtractObject(const Name: string): TJsonObject;
|
|
begin
|
|
Result := Extract(Name) as TJsonObject;
|
|
end;
|
|
|
|
function TJsonObject.GetEnumerator: TJsonObjectEnumerator;
|
|
begin
|
|
Result := TJsonObjectEnumerator.Create(Self);
|
|
end;
|
|
|
|
function TJsonObject.IsNull(const Name: string): Boolean;
|
|
var
|
|
Item: PJsonDataValue;
|
|
begin
|
|
if FindItem(Name, Item) then
|
|
Result := Item.IsNull
|
|
else
|
|
Result := True;
|
|
end;
|
|
|
|
function TJsonObject.AddItem(const Name: string): PJsonDataValue;
|
|
var
|
|
P: PString;
|
|
begin
|
|
if FCount = FCapacity then
|
|
Grow;
|
|
Result := @FItems[FCount];
|
|
P := @FNames[FCount];
|
|
Inc(FCount);
|
|
Pointer(P^) := nil; // initialize the string
|
|
{$IFDEF USE_NAME_STRING_LITERAL}
|
|
AsgString(P^, Name);
|
|
{$ELSE}
|
|
P^ := Name;
|
|
{$ENDIF USE_NAME_STRING_LITERAL}
|
|
|
|
Result.FValue.P := nil;
|
|
Result.FTyp := jdtNone;
|
|
end;
|
|
|
|
function TJsonObject.InternAddItem(var Name: string): PJsonDataValue;
|
|
var
|
|
P: PString;
|
|
begin
|
|
if FCount = FCapacity then
|
|
Grow;
|
|
Result := @FItems[FCount];
|
|
P := @FNames[FCount];
|
|
Inc(FCount);
|
|
// Transfer the string without going through UStrAsg and UStrClr
|
|
Pointer(P^) := Pointer(Name);
|
|
Pointer(Name) := nil;
|
|
|
|
Result.FValue.P := nil;
|
|
Result.FTyp := jdtNone;
|
|
end;
|
|
|
|
function TJsonObject.GetArray(const Name: string): TJsonArray;
|
|
var
|
|
Item: PJsonDataValue;
|
|
begin
|
|
if FindItem(Name, Item) then
|
|
Result := Item.ArrayValue
|
|
else
|
|
begin
|
|
Result := TJsonArray.Create;
|
|
AddItem(Name).ArrayValue := Result;
|
|
{$IFDEF USE_LAST_NAME_STRING_LITERAL_CACHE}
|
|
UpdateLastValueItem(Name, Item);
|
|
{$ENDIF USE_LAST_NAME_STRING_LITERAL_CACHE}
|
|
end;
|
|
end;
|
|
|
|
function TJsonObject.GetBool(const Name: string): Boolean;
|
|
var
|
|
Item: PJsonDataValue;
|
|
begin
|
|
if FindItem(Name, Item) then
|
|
Result := Item.BoolValue
|
|
else
|
|
Result := False;
|
|
end;
|
|
|
|
function TJsonObject.GetInt(const Name: string): Integer;
|
|
var
|
|
Item: PJsonDataValue;
|
|
begin
|
|
if FindItem(Name, Item) then
|
|
Result := Item.IntValue
|
|
else
|
|
Result := 0;
|
|
end;
|
|
|
|
function TJsonObject.GetLong(const Name: string): Int64;
|
|
var
|
|
Item: PJsonDataValue;
|
|
begin
|
|
if FindItem(Name, Item) then
|
|
Result := Item.LongValue
|
|
else
|
|
Result := 0;
|
|
end;
|
|
|
|
function TJsonObject.GetULong(const Name: string): UInt64;
|
|
var
|
|
Item: PJsonDataValue;
|
|
begin
|
|
if FindItem(Name, Item) then
|
|
Result := Item.ULongValue
|
|
else
|
|
Result := 0;
|
|
end;
|
|
|
|
function TJsonObject.GetFloat(const Name: string): Double;
|
|
var
|
|
Item: PJsonDataValue;
|
|
begin
|
|
if FindItem(Name, Item) then
|
|
Result := Item.FloatValue
|
|
else
|
|
Result := 0;
|
|
end;
|
|
|
|
function TJsonObject.GetDateTime(const Name: string): TDateTime;
|
|
var
|
|
Item: PJsonDataValue;
|
|
begin
|
|
if FindItem(Name, Item) then
|
|
Result := Item.DateTimeValue
|
|
else
|
|
Result := 0;
|
|
end;
|
|
|
|
function TJsonObject.GetUtcDateTime(const Name: string): TDateTime;
|
|
var
|
|
Item: PJsonDataValue;
|
|
begin
|
|
if FindItem(Name, Item) then
|
|
Result := Item.UtcDateTimeValue
|
|
else
|
|
Result := 0;
|
|
end;
|
|
|
|
{$IFDEF BCB}
|
|
function TJsonObject.GetObj(const Name: string): TJsonObject;
|
|
var
|
|
Item: PJsonDataValue;
|
|
begin
|
|
if FindItem(Name, Item) then
|
|
Result := Item.ObjectValue
|
|
else
|
|
begin
|
|
Result := TJsonObject.Create;
|
|
AddItem(Name).ObjectValue := Result;
|
|
{$IFDEF USE_LAST_NAME_STRING_LITERAL_CACHE}
|
|
UpdateLastValueItem(Name, Item);
|
|
{$ENDIF USE_LAST_NAME_STRING_LITERAL_CACHE}
|
|
end;
|
|
end;
|
|
{$ELSE}
|
|
function TJsonObject.GetObject(const Name: string): TJsonObject;
|
|
var
|
|
Item: PJsonDataValue;
|
|
begin
|
|
if FindItem(Name, Item) then
|
|
Result := Item.ObjectValue
|
|
else
|
|
begin
|
|
Result := TJsonObject.Create;
|
|
AddItem(Name).ObjectValue := Result;
|
|
{$IFDEF USE_LAST_NAME_STRING_LITERAL_CACHE}
|
|
UpdateLastValueItem(Name, Item);
|
|
{$ENDIF USE_LAST_NAME_STRING_LITERAL_CACHE}
|
|
end;
|
|
end;
|
|
{$ENDIF BCB}
|
|
|
|
function TJsonObject.GetString(const Name: string): string;
|
|
var
|
|
Item: PJsonDataValue;
|
|
begin
|
|
if FindItem(Name, Item) then
|
|
Result := Item.Value
|
|
else
|
|
Result := '';
|
|
end;
|
|
|
|
procedure TJsonObject.SetArray(const Name: string; const Value: TJsonArray);
|
|
begin
|
|
RequireItem(Name).ArrayValue := Value;
|
|
end;
|
|
|
|
procedure TJsonObject.SetBool(const Name: string; const Value: Boolean);
|
|
begin
|
|
RequireItem(Name).BoolValue := Value;
|
|
end;
|
|
|
|
procedure TJsonObject.SetInt(const Name: string; const Value: Integer);
|
|
begin
|
|
RequireItem(Name).IntValue := Value;
|
|
end;
|
|
|
|
procedure TJsonObject.SetLong(const Name: string; const Value: Int64);
|
|
begin
|
|
RequireItem(Name).LongValue := Value;
|
|
end;
|
|
|
|
procedure TJsonObject.SetULong(const Name: string; const Value: UInt64);
|
|
begin
|
|
RequireItem(Name).ULongValue := Value;
|
|
end;
|
|
|
|
procedure TJsonObject.SetFloat(const Name: string; const Value: Double);
|
|
begin
|
|
RequireItem(Name).FloatValue := Value;
|
|
end;
|
|
|
|
procedure TJsonObject.SetDateTime(const Name: string; const Value: TDateTime);
|
|
begin
|
|
RequireItem(Name).DateTimeValue := Value;
|
|
end;
|
|
|
|
procedure TJsonObject.SetUtcDateTime(const Name: string; const Value: TDateTime);
|
|
begin
|
|
RequireItem(Name).UtcDateTimeValue := Value;
|
|
end;
|
|
|
|
procedure TJsonObject.SetObject(const Name: string; const Value: TJsonObject);
|
|
begin
|
|
RequireItem(Name).ObjectValue := Value;
|
|
end;
|
|
|
|
procedure TJsonObject.SetString(const Name, Value: string);
|
|
begin
|
|
RequireItem(Name).Value := Value;
|
|
end;
|
|
|
|
function TJsonObject.GetType(const Name: string): TJsonDataType;
|
|
var
|
|
Item: PJsonDataValue;
|
|
begin
|
|
if FindItem(Name, Item) then
|
|
Result := Item.Typ
|
|
else
|
|
Result := jdtNone;
|
|
end;
|
|
|
|
function TJsonObject.Contains(const Name: string): Boolean;
|
|
{$IFDEF USE_LAST_NAME_STRING_LITERAL_CACHE}
|
|
var
|
|
Item: PJsonDataValue;
|
|
{$ENDIF USE_LAST_NAME_STRING_LITERAL_CACHE}
|
|
begin
|
|
{$IFDEF USE_LAST_NAME_STRING_LITERAL_CACHE}
|
|
Result := FindItem(Name, Item);
|
|
{$ELSE}
|
|
Result := IndexOf(Name) <> -1;
|
|
{$ENDIF USE_LAST_NAME_STRING_LITERAL_CACHE}
|
|
end;
|
|
|
|
function TJsonObject.IndexOfPChar(S: PChar; Len: Integer): Integer;
|
|
var
|
|
P: PJsonStringArray;
|
|
begin
|
|
P := FNames;
|
|
if Len = 0 then
|
|
begin
|
|
for Result := 0 to FCount - 1 do
|
|
if P[Result] = '' then
|
|
Exit;
|
|
end
|
|
else
|
|
begin
|
|
for Result := 0 to FCount - 1 do
|
|
if (Length(P[Result]) = Len) and CompareMem(S, Pointer(P[Result]), Len * SizeOf(Char)) then
|
|
Exit;
|
|
end;
|
|
Result := -1;
|
|
end;
|
|
|
|
function TJsonObject.IndexOf(const Name: string): Integer;
|
|
var
|
|
P: PJsonStringArray;
|
|
begin
|
|
P := FNames;
|
|
for Result := 0 to FCount - 1 do
|
|
if {(Pointer(Name) = Pointer(P[Result])) or} (Name = P[Result]) then
|
|
Exit;
|
|
Result := -1;
|
|
end;
|
|
|
|
function TJsonObject.FindItem(const Name: string; var Item: PJsonDataValue): Boolean;
|
|
var
|
|
Idx: Integer;
|
|
begin
|
|
{$IFDEF USE_LAST_NAME_STRING_LITERAL_CACHE}
|
|
{ If "Name" is a string literal we can compare the pointer of the last stored value instead of
|
|
searching the list. }
|
|
if (FLastValueItem <> nil) and (Pointer(Name) = FLastValueItemNamePtr) then
|
|
begin
|
|
Item := FLastValueItem;
|
|
Result := True;
|
|
end
|
|
else
|
|
{$ENDIF USE_LAST_NAME_STRING_LITERAL_CACHE}
|
|
begin
|
|
Idx := IndexOf(Name);
|
|
Result := Idx <> -1;
|
|
if Result then
|
|
begin
|
|
Item := @FItems[Idx];
|
|
{$IFDEF USE_LAST_NAME_STRING_LITERAL_CACHE}
|
|
UpdateLastValueItem(Name, Item);
|
|
{$ENDIF USE_LAST_NAME_STRING_LITERAL_CACHE}
|
|
end
|
|
else
|
|
Item := nil;
|
|
end;
|
|
end;
|
|
|
|
function TJsonObject.RequireItem(const Name: string): PJsonDataValue;
|
|
begin
|
|
if not FindItem(Name, Result) then
|
|
begin
|
|
Result := AddItem(Name);
|
|
{$IFDEF USE_LAST_NAME_STRING_LITERAL_CACHE}
|
|
UpdateLastValueItem(Name, Result);
|
|
{$ENDIF USE_LAST_NAME_STRING_LITERAL_CACHE}
|
|
end;
|
|
end;
|
|
|
|
procedure TJsonObject.InternToJSON(var Writer: TJsonOutputWriter);
|
|
var
|
|
I: Integer;
|
|
begin
|
|
if Count = 0 then
|
|
Writer.AppendValue('{}')
|
|
else
|
|
begin
|
|
Writer.Indent('{');
|
|
TJsonBaseObject.StrToJSONStr(Writer.AppendIntro, FNames[0]);
|
|
FItems[0].InternToJSON(Writer);
|
|
for I := 1 to FCount - 1 do
|
|
begin
|
|
Writer.AppendSeparator(',');
|
|
TJsonBaseObject.StrToJSONStr(Writer.AppendIntro, FNames[I]);
|
|
FItems[I].InternToJSON(Writer);
|
|
end;
|
|
Writer.Unindent('}');
|
|
end;
|
|
end;
|
|
|
|
function TJsonObject.GetName(Index: Integer): string;
|
|
begin
|
|
Result := FNames[Index];
|
|
end;
|
|
|
|
function TJsonObject.GetItem(Index: Integer): PJsonDataValue;
|
|
begin
|
|
Result := @FItems[Index];
|
|
end;
|
|
|
|
procedure TJsonObject.Delete(Index: Integer);
|
|
begin
|
|
if (Index < 0) or (Index >= FCount) then
|
|
ListError(@SListIndexError, Index);
|
|
|
|
{$IFDEF USE_LAST_NAME_STRING_LITERAL_CACHE}
|
|
if @FItems[Index] = FLastValueItem then
|
|
begin
|
|
FLastValueItem := nil;
|
|
//FLastValueItemNamePtr := nil;
|
|
end;
|
|
{$ENDIF USE_LAST_NAME_STRING_LITERAL_CACHE}
|
|
FNames[Index] := '';
|
|
FItems[Index].Clear;
|
|
Dec(FCount);
|
|
if Index < FCount then
|
|
begin
|
|
Move(FItems[Index + 1], FItems[Index], (FCount - Index) * SizeOf(FItems[0]));
|
|
Move(FNames[Index + 1], FNames[Index], (FCount - Index) * SizeOf(FNames[0]));
|
|
end;
|
|
end;
|
|
|
|
function TJsonObject.GetValue(const Name: string): TJsonDataValueHelper;
|
|
begin
|
|
if not FindItem(Name, Result.FData.FIntern) then
|
|
begin
|
|
Result.FData.FIntern := nil;
|
|
Result.FData.FNameResolver := Self;
|
|
Result.FData.FName := Name;
|
|
end;
|
|
Result.FData.FTyp := jdtNone;
|
|
end;
|
|
|
|
procedure TJsonObject.SetValue(const Name: string; const Value: TJsonDataValueHelper);
|
|
var
|
|
Item: PJsonDataValue;
|
|
begin
|
|
Item := RequireItem(Name);
|
|
TJsonDataValueHelper.SetInternValue(Item, Value);
|
|
end;
|
|
|
|
procedure TJsonObject.InternAdd(var AName: string; const AValue: TJsonArray);
|
|
var
|
|
Data: PJsonDataValue;
|
|
begin
|
|
Data := InternAddItem(AName);
|
|
Data.InternSetArrayValue(AValue);
|
|
end;
|
|
|
|
procedure TJsonObject.InternAdd(var AName: string; const AValue: TJsonObject);
|
|
var
|
|
Data: PJsonDataValue;
|
|
begin
|
|
Data := InternAddItem(AName);
|
|
Data.InternSetObjectValue(AValue);
|
|
end;
|
|
|
|
procedure TJsonObject.InternAdd(var AName: string; const AValue: Boolean);
|
|
var
|
|
Data: PJsonDataValue;
|
|
begin
|
|
Data := InternAddItem(AName);
|
|
Data.BoolValue := AValue;
|
|
end;
|
|
|
|
procedure TJsonObject.InternAdd(var AName: string; const AValue: Integer);
|
|
var
|
|
Data: PJsonDataValue;
|
|
begin
|
|
Data := InternAddItem(AName);
|
|
Data.IntValue := AValue;
|
|
end;
|
|
|
|
procedure TJsonObject.InternAdd(var AName: string; const AValue: Int64);
|
|
var
|
|
Data: PJsonDataValue;
|
|
begin
|
|
Data := InternAddItem(AName);
|
|
Data.LongValue := AValue;
|
|
end;
|
|
|
|
procedure TJsonObject.InternAdd(var AName: string; const AValue: UInt64);
|
|
var
|
|
Data: PJsonDataValue;
|
|
begin
|
|
Data := InternAddItem(AName);
|
|
Data.ULongValue := AValue;
|
|
end;
|
|
|
|
procedure TJsonObject.InternAdd(var AName: string; const AValue: Double);
|
|
var
|
|
Data: PJsonDataValue;
|
|
begin
|
|
Data := InternAddItem(AName);
|
|
Data.FloatValue := AValue;
|
|
end;
|
|
|
|
procedure TJsonObject.InternAdd(var AName: string; const AValue: TDateTime);
|
|
var
|
|
Data: PJsonDataValue;
|
|
begin
|
|
Data := InternAddItem(AName);
|
|
Data.DateTimeValue := AValue;
|
|
end;
|
|
|
|
procedure TJsonObject.InternAdd(var AName: string; const AValue: string);
|
|
var
|
|
Data: PJsonDataValue;
|
|
begin
|
|
Data := InternAddItem(AName);
|
|
Data.InternSetValue(AValue);
|
|
end;
|
|
|
|
function TJsonObject.InternAddArray(var AName: string): TJsonArray;
|
|
begin
|
|
{$IFDEF USE_FAST_AUTOREFCOUNT}
|
|
if Result <> nil then
|
|
Result.ARCObjRelease;
|
|
Pointer(Result) := TJsonArray.Create;
|
|
Inc(Result.FRefCount); //Result.ARCObjAddRef;
|
|
{$ELSE}
|
|
Result := TJsonArray.Create;
|
|
{$ENDIF USE_FAST_AUTOREFCOUNT}
|
|
InternAdd(AName, Result);
|
|
end;
|
|
|
|
function TJsonObject.InternAddObject(var AName: string): TJsonObject;
|
|
begin
|
|
{$IFDEF USE_FAST_AUTOREFCOUNT}
|
|
if Result <> nil then
|
|
Result.ARCObjRelease;
|
|
Pointer(Result) := TJsonObject.Create;
|
|
Inc(Result.FRefCount); //Result.ARCObjAddRef;
|
|
{$ELSE}
|
|
Result := TJsonObject.Create;
|
|
{$ENDIF USE_FAST_AUTOREFCOUNT}
|
|
InternAdd(AName, Result);
|
|
end;
|
|
|
|
procedure TJsonObject.ToSimpleObject(AObject: TObject; ACaseSensitive: Boolean);
|
|
var
|
|
Index, Count: Integer;
|
|
PropList: PPropList;
|
|
PropType: PTypeInfo;
|
|
PropName: string;
|
|
Item: PJsonDataValue;
|
|
V: Variant;
|
|
begin
|
|
if AObject = nil then
|
|
Exit;
|
|
if AObject.ClassInfo = nil then
|
|
raise EJsonException.CreateResFmt(@RsMissingClassInfo, [AObject.ClassName]);
|
|
|
|
Count := GetPropList(AObject, PropList);
|
|
if Count > 0 then
|
|
begin
|
|
try
|
|
for Index := 0 to Count - 1 do
|
|
begin
|
|
if (PropList[Index].StoredProc = Pointer($1)) or IsStoredProp(AObject, PropList[Index]) then
|
|
begin
|
|
PropName := UTF8ToString(PropList[Index].Name);
|
|
if not ACaseSensitive then
|
|
Item := FindCaseInsensitiveItem(PropName)
|
|
else if not FindItem(PropName, Item) then
|
|
Item := nil;
|
|
|
|
if Item <> nil then
|
|
begin
|
|
case PropList[Index].PropType^.Kind of
|
|
tkInteger, tkChar, tkWChar:
|
|
SetOrdProp(AObject, PropList[Index], Item.IntValue);
|
|
|
|
tkEnumeration:
|
|
SetOrdProp(AObject, PropList[Index], Item.IntValue);
|
|
|
|
tkFloat:
|
|
begin
|
|
PropType := PropList[Index].PropType^;
|
|
if (PropType = TypeInfo(TDateTime)) or (PropType = TypeInfo(TDate)) or (PropType = TypeInfo(TTime)) then
|
|
SetFloatProp(AObject, PropList[Index], Item.DateTimeValue)
|
|
else
|
|
SetFloatProp(AObject, PropList[Index], Item.FloatValue);
|
|
end;
|
|
|
|
tkInt64:
|
|
SetInt64Prop(AObject, PropList[Index], Item.LongValue);
|
|
|
|
tkString, tkLString, tkWString, tkUString:
|
|
SetStrProp(AObject, PropList[Index], Item.Value);
|
|
|
|
tkSet:
|
|
SetSetProp(AObject, PropList[Index], Item.Value);
|
|
|
|
tkVariant:
|
|
begin
|
|
case Types[PropName] of
|
|
jdtObject, jdtArray:
|
|
V := Null;
|
|
jdtInt:
|
|
V := Item.IntValue;
|
|
jdtLong:
|
|
V := Item.LongValue;
|
|
jdtULong:
|
|
V := Item.ULongValue;
|
|
jdtFloat:
|
|
V := Item.FloatValue;
|
|
jdtDateTime:
|
|
V := Item.DateTimeValue;
|
|
jdtUtcDateTime:
|
|
V := Item.UtcDateTimeValue;
|
|
jdtBool:
|
|
V := Item.BoolValue;
|
|
else
|
|
V := Item.Value;
|
|
end;
|
|
SetVariantProp(AObject, PropList[Index], V);
|
|
end;
|
|
end;
|
|
end;
|
|
end;
|
|
end;
|
|
finally
|
|
FreeMem(PropList);
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
procedure TJsonObject.FromSimpleObject(AObject: TObject; ALowerCamelCase: Boolean);
|
|
var
|
|
Index, Count: Integer;
|
|
PropList: PPropList;
|
|
PropType: PTypeInfo;
|
|
PropName: string;
|
|
V: Variant;
|
|
D: Double;
|
|
Ch: Char;
|
|
begin
|
|
Clear;
|
|
if AObject = nil then
|
|
Exit;
|
|
if AObject.ClassInfo = nil then
|
|
raise EJsonException.CreateResFmt(@RsMissingClassInfo, [AObject.ClassName]);
|
|
|
|
Count := GetPropList(AObject, PropList);
|
|
if Count > 0 then
|
|
begin
|
|
try
|
|
for Index := 0 to Count - 1 do
|
|
begin
|
|
if (PropList[Index].StoredProc = Pointer($1)) or IsStoredProp(AObject, PropList[Index]) then
|
|
begin
|
|
PropName := UTF8ToString(PropList[Index].Name);
|
|
if ALowerCamelCase and (PropName <> '') then
|
|
begin
|
|
Ch := PChar(Pointer(PropName))^;
|
|
if Ord(Ch) < 128 then
|
|
begin
|
|
case Ch of
|
|
'A'..'Z':
|
|
PChar(Pointer(PropName))^ := Char(Ord(Ch) xor $20);
|
|
end;
|
|
end
|
|
else // Delphi 2005+ compilers allow unicode identifiers, even if that is a very bad idea
|
|
AnsiLowerCamelCaseString(PropName);
|
|
end;
|
|
|
|
case PropList[Index].PropType^.Kind of
|
|
tkInteger, tkChar, tkWChar:
|
|
InternAdd(PropName, GetOrdProp(AObject, PropList[Index]));
|
|
|
|
tkEnumeration:
|
|
begin
|
|
PropType := PropList[Index].PropType^;
|
|
if (PropType = TypeInfo(Boolean)) or (PropType = TypeInfo(ByteBool)) or
|
|
(PropType = TypeInfo(WordBool)) or (PropType = TypeInfo(LongBool)) then
|
|
InternAdd(PropName, GetOrdProp(AObject, PropList[Index]) <> 0)
|
|
else
|
|
InternAdd(PropName, GetOrdProp(AObject, PropList[Index]));
|
|
end;
|
|
|
|
tkFloat:
|
|
begin
|
|
PropType := PropList[Index].PropType^;
|
|
D := GetFloatProp(AObject, PropList[Index]);
|
|
if (PropType = TypeInfo(TDateTime)) or (PropType = TypeInfo(TDate)) or (PropType = TypeInfo(TTime)) then
|
|
InternAdd(PropName, TDateTime(D))
|
|
else
|
|
InternAdd(PropName, D);
|
|
end;
|
|
|
|
tkInt64:
|
|
InternAdd(PropName, GetInt64Prop(AObject, PropList[Index]));
|
|
|
|
tkString, tkLString, tkWString, tkUString:
|
|
InternAdd(PropName, GetStrProp(AObject, PropList[Index]));
|
|
|
|
tkSet:
|
|
InternAdd(PropName, GetSetProp(AObject, PropList[Index]));
|
|
|
|
tkVariant:
|
|
begin
|
|
V := GetVariantProp(AObject, PropList[Index]);
|
|
if VarIsNull(V) or VarIsEmpty(V) then
|
|
InternAdd(PropName, TJsonObject(nil))
|
|
else
|
|
begin
|
|
case VarType(V) and varTypeMask of
|
|
varSingle, varDouble, varCurrency:
|
|
InternAdd(PropName, Double(V));
|
|
varShortInt, varSmallint, varInteger, varByte, varWord:
|
|
InternAdd(PropName, Integer(V));
|
|
varLongWord:
|
|
InternAdd(PropName, Int64(LongWord(V)));
|
|
{$IF CompilerVersion >= 23.0} // XE2+
|
|
varInt64:
|
|
InternAdd(PropName, Int64(V));
|
|
{$IFEND}
|
|
varBoolean:
|
|
InternAdd(PropName, Boolean(V));
|
|
else
|
|
InternAdd(PropName, VarToStr(V));
|
|
end;
|
|
end;
|
|
end;
|
|
end;
|
|
end;
|
|
end;
|
|
finally
|
|
FreeMem(PropList);
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
function TJsonObject.FindCaseInsensitiveItem(const ACaseInsensitiveName: string): PJsonDataValue;
|
|
var
|
|
I: Integer;
|
|
begin
|
|
for I := 0 to Count - 1 do
|
|
begin
|
|
if AnsiSameText(FNames[I], ACaseInsensitiveName) then
|
|
begin
|
|
Result := @FItems[I];
|
|
Exit;
|
|
end;
|
|
end;
|
|
Result := nil;
|
|
end;
|
|
|
|
procedure TJsonObject.Assign(ASource: TJsonObject);
|
|
var
|
|
I: Integer;
|
|
begin
|
|
Clear;
|
|
if ASource <> nil then
|
|
begin
|
|
FCapacity := ASource.Count;
|
|
InternApplyCapacity;
|
|
|
|
FCount := ASource.Count;
|
|
for I := 0 to ASource.Count - 1 do
|
|
begin
|
|
Pointer(FNames[I]) := nil;
|
|
{$IFDEF USE_NAME_STRING_LITERAL}
|
|
AsgString(FNames[I], ASource.FNames[I]);
|
|
{$ELSE}
|
|
FNames[I] := ASource.FNames[I];
|
|
{$ENDIF USE_NAME_STRING_LITERAL}
|
|
InternInitAndAssignItem(@FItems[I], @ASource.FItems[I]);
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
FreeMem(FItems);
|
|
FreeMem(FNames);
|
|
FCapacity := 0;
|
|
end;
|
|
end;
|
|
|
|
function TJsonObject.Clone: TJsonObject;
|
|
begin
|
|
Result := TJsonObject.Create;
|
|
try
|
|
TJsonObject(Result).Assign(Self);
|
|
except
|
|
Result.Free;
|
|
raise;
|
|
end;
|
|
end;
|
|
|
|
procedure TJsonObject.PathError(P, EndP: PChar);
|
|
var
|
|
S: string;
|
|
begin
|
|
System.SetString(S, P, EndP - P);
|
|
raise EJsonPathException.CreateResFmt(@RsInvalidJsonPath, [S]);
|
|
end;
|
|
|
|
procedure TJsonObject.PathNullError(P, EndP: PChar);
|
|
var
|
|
S: string;
|
|
begin
|
|
System.SetString(S, P, EndP - P);
|
|
raise EJsonPathException.CreateResFmt(@RsJsonPathContainsNullValue, [S]);
|
|
end;
|
|
|
|
procedure TJsonObject.PathIndexError(P, EndP: PChar; Count: Integer);
|
|
var
|
|
S: string;
|
|
begin
|
|
System.SetString(S, P, EndP - P);
|
|
raise EJsonPathException.CreateResFmt(@RsJsonPathIndexError, [Count, S]);
|
|
end;
|
|
|
|
function TJsonObject.GetPath(const NamePath: string): TJsonDataValueHelper;
|
|
var
|
|
F, P, EndF, LastEndF: PChar;
|
|
Ch: Char;
|
|
Idx: Integer;
|
|
Obj: TJsonObject;
|
|
Arr: TJsonArray;
|
|
Item: PJsonDataValue;
|
|
S: string;
|
|
begin
|
|
P := PChar(NamePath);
|
|
// empty string => Self
|
|
if P^ = #0 then
|
|
begin
|
|
Result := Self;
|
|
Exit;
|
|
end;
|
|
|
|
Result.FData.FIntern := nil;
|
|
Result.FData.FTyp := jdtNone;
|
|
|
|
Obj := Self;
|
|
Item := nil;
|
|
LastEndF := nil;
|
|
while True do
|
|
begin
|
|
F := P;
|
|
|
|
// fast forward
|
|
Ch := P^;
|
|
// DCC64 generates "bt mem,reg" code
|
|
// while not (Ch in [#0, '[', '.']) do
|
|
// begin
|
|
// Inc(P);
|
|
// Ch := P^;
|
|
// end;
|
|
while True do
|
|
case Ch of
|
|
#0, '[', '.': Break;
|
|
else
|
|
Inc(P);
|
|
Ch := P^;
|
|
end;
|
|
|
|
EndF := P;
|
|
if F = EndF then
|
|
PathError(PChar(Pointer(NamePath)), P + 1);
|
|
|
|
Inc(P);
|
|
case Ch of
|
|
#0:
|
|
begin
|
|
if Obj <> nil then
|
|
begin
|
|
Idx := Obj.IndexOfPChar(F, EndF - F);
|
|
if Idx <> -1 then
|
|
Result.FData.FIntern := @Obj.FItems[Idx]
|
|
else
|
|
begin
|
|
Result.FData.FNameResolver := Obj;
|
|
System.SetString(Result.FData.FName, F, EndF - F);
|
|
end;
|
|
end
|
|
else
|
|
Result.FData.FIntern := Item;
|
|
Break;
|
|
end;
|
|
|
|
'.': // object access
|
|
begin
|
|
if Obj = nil then
|
|
PathNullError(PChar(Pointer(NamePath)), LastEndF);
|
|
|
|
Idx := Obj.IndexOfPChar(F, EndF - F);
|
|
if Idx <> -1 then
|
|
Obj := Obj.FItems[Idx].ObjectValue
|
|
else
|
|
begin
|
|
// auto create object
|
|
System.SetString(S, F, EndF - F);
|
|
Obj := Obj.InternAddObject(S);
|
|
end;
|
|
end;
|
|
|
|
'[': // array access
|
|
begin
|
|
if Obj = nil then
|
|
PathNullError(PChar(Pointer(NamePath)), LastEndF);
|
|
|
|
Idx := Obj.IndexOfPChar(F, EndF - F);
|
|
if Idx <> -1 then
|
|
begin
|
|
Arr := Obj.FItems[Idx].ArrayValue;
|
|
if Arr = nil then
|
|
begin
|
|
// Shouldn't happen => auto create array
|
|
Arr := TJsonArray.Create;
|
|
Obj.FItems[Idx].ArrayValue := Arr;
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
// auto create array
|
|
System.SetString(S, F, EndF - F);
|
|
Arr := Obj.InternAddArray(S);
|
|
end;
|
|
Ch := P^;
|
|
// parse array index
|
|
Idx := 0;
|
|
while Ch in ['0'..'9'] do
|
|
begin
|
|
Idx := Idx * 10 + (Word(Ch) - Ord('0'));
|
|
Inc(P);
|
|
Ch := P^;
|
|
end;
|
|
|
|
if P^ <> ']' then
|
|
PathError(PChar(Pointer(NamePath)), P + 1);
|
|
Inc(P);
|
|
|
|
if Idx >= Arr.Count then
|
|
PathIndexError(PChar(Pointer(NamePath)), P, Arr.Count); // P is already incremented
|
|
Item := @Arr.FItems[Idx];
|
|
|
|
if P^ = '.' then
|
|
begin
|
|
Inc(P);
|
|
Obj := Item.ObjectValue;
|
|
Item := nil;
|
|
end
|
|
else if P^ = #0 then
|
|
begin
|
|
// return array element
|
|
Result.FData.FIntern := Item;
|
|
Break;
|
|
end;
|
|
end;
|
|
end;
|
|
LastEndF := EndF;
|
|
end;
|
|
end;
|
|
|
|
procedure TJsonObject.SetPath(const NamePath: string; const Value: TJsonDataValueHelper);
|
|
var
|
|
PathValue: TJsonDataValueHelper;
|
|
begin
|
|
PathValue := Path[NamePath];
|
|
PathValue.ResolveName;
|
|
TJsonDataValueHelper.SetInternValue(PathValue.FData.FIntern, Value);
|
|
end;
|
|
|
|
{ TStringIntern }
|
|
|
|
{$IFDEF USE_STRINGINTERN_FOR_NAMES}
|
|
procedure TStringIntern.Init;
|
|
begin
|
|
FCount := 0;
|
|
FCapacity := 17;
|
|
GetMem(FStrings, FCapacity * SizeOf(FStrings[0]));
|
|
GetMem(FBuckets, FCapacity * SizeOf(FBuckets[0]));
|
|
FillChar(FBuckets[0], FCapacity * SizeOf(FBuckets[0]), $FF);
|
|
end;
|
|
|
|
procedure TStringIntern.Done;
|
|
var
|
|
I: Integer;
|
|
begin
|
|
for I := 0 to FCount - 1 do
|
|
FStrings[I].Name := '';
|
|
FreeMem(FStrings);
|
|
FreeMem(FBuckets);
|
|
end;
|
|
|
|
procedure TStringIntern.Intern(var S: string; var PropName: string);
|
|
var
|
|
Index: Integer;
|
|
Hash: Integer;
|
|
{$IFDEF USE_FAST_STRASG_FOR_INTERNAL_STRINGS}
|
|
Source: Pointer;
|
|
{$ENDIF USE_FAST_STRASG_FOR_INTERNAL_STRINGS}
|
|
begin
|
|
if PropName <> '' then
|
|
PropName := ''; // guarantee that Pointer(FPropName) = nil because InternTransfer steals FLook.S and overwrites FPropName
|
|
if S <> '' then
|
|
begin
|
|
Hash := GetHash(S);
|
|
Index := Find(Hash, S);
|
|
if Index <> -1 then
|
|
begin
|
|
{$IFDEF USE_FAST_STRASG_FOR_INTERNAL_STRINGS}
|
|
Source := Pointer(FStrings[Index].Name);
|
|
if Source <> nil then
|
|
begin
|
|
{$IFDEF DEBUG}
|
|
//if PInteger(@PByte(Source)[-8])^ = -1 then
|
|
// InternAsgStringUsageError;
|
|
{$ENDIF DEBUG}
|
|
Pointer(PropName) := Source;
|
|
// We are parsing JSON, no other thread knowns about the string => skip the CPU lock
|
|
Inc(PInteger(@PByte(Source)[-8])^);
|
|
end;
|
|
{$ELSE}
|
|
PropName := FStrings[Index].Name;
|
|
{$ENDIF USE_FAST_STRASG_FOR_INTERNAL_STRINGS}
|
|
S := '';
|
|
end
|
|
else
|
|
begin
|
|
// Transfer the string without going through UStrAsg and UStrClr
|
|
Pointer(PropName) := Pointer(S);
|
|
Pointer(S) := nil;
|
|
InternAdd(Hash, PropName);
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
class function TStringIntern.GetHash(const Name: string): Integer;
|
|
var
|
|
P: PChar;
|
|
Ch: Word;
|
|
begin
|
|
// Only used to reduce memory when parsing large JSON strings
|
|
Result := 0;
|
|
P := PChar(Pointer(Name));
|
|
if P <> nil then
|
|
begin
|
|
Result := PInteger(@PByte(Name)[-4])^;
|
|
while True do
|
|
begin
|
|
Ch := Word(P[0]);
|
|
if Ch = 0 then
|
|
Break;
|
|
Result := Result + Ch;
|
|
|
|
Ch := Word(P[1]);
|
|
if Ch = 0 then
|
|
Break;
|
|
Result := Result + Ch;
|
|
|
|
Ch := Word(P[2]);
|
|
if Ch = 0 then
|
|
Break;
|
|
Result := Result + Ch;
|
|
|
|
Ch := Word(P[3]);
|
|
if Ch = 0 then
|
|
Break;
|
|
Result := Result + Ch;
|
|
|
|
Result := (Result shl 6) or ((Result shr 26) and $3F);
|
|
Inc(P, 4);
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
procedure TStringIntern.InternAdd(AHash: Integer; const S: string);
|
|
var
|
|
Index: Integer;
|
|
Bucket: PInteger;
|
|
begin
|
|
if FCount = FCapacity then
|
|
Grow;
|
|
Index := FCount;
|
|
Inc(FCount);
|
|
|
|
Bucket := @FBuckets[(AHash and $7FFFFFFF) mod FCapacity];
|
|
with FStrings[Index] do
|
|
begin
|
|
Next := Bucket^;
|
|
Hash := AHash;
|
|
Pointer(Name) := Pointer(S);
|
|
Inc(PInteger(@PByte(Name)[-8])^);
|
|
end;
|
|
Bucket^ := Index;
|
|
end;
|
|
|
|
procedure TStringIntern.Grow;
|
|
var
|
|
I: Integer;
|
|
Index: Integer;
|
|
Len: Integer;
|
|
begin
|
|
Len := FCapacity;
|
|
// Some prime numbers
|
|
case Len of
|
|
17: Len := 37;
|
|
37: Len := 59;
|
|
59: Len := 83;
|
|
83: Len := 127;
|
|
127: Len := 353;
|
|
353: Len := 739;
|
|
739: Len := 1597;
|
|
1597: Len := 2221;
|
|
else
|
|
Len := Len * 2 + 1;
|
|
end;
|
|
FCapacity := Len;
|
|
|
|
ReallocMem(FStrings, Len * SizeOf(FStrings[0]));
|
|
ReallocMem(FBuckets, Len * SizeOf(FBuckets[0]));
|
|
FillChar(FBuckets[0], Len * SizeOf(FBuckets[0]), $FF);
|
|
|
|
// Rehash
|
|
for I := 0 to FCount - 1 do
|
|
begin
|
|
Index := (FStrings[I].Hash and $7FFFFFFF) mod Len;
|
|
FStrings[I].Next := FBuckets[Index];
|
|
FBuckets[Index] := I;
|
|
end;
|
|
end;
|
|
|
|
function TStringIntern.Find(Hash: Integer; const S: string): Integer;
|
|
var
|
|
Strs: PJsonStringEntryArray;
|
|
begin
|
|
Result := -1;
|
|
if FCount <> 0 then
|
|
begin
|
|
Result := FBuckets[(Hash and $7FFFFFFF) mod FCapacity];
|
|
if Result <> -1 then
|
|
begin
|
|
Strs := FStrings;
|
|
while True do
|
|
begin
|
|
if (Strs[Result].Hash = Hash) and (Strs[Result].Name = S) then
|
|
Break;
|
|
Result := Strs[Result].Next;
|
|
if Result = -1 then
|
|
Break;
|
|
end;
|
|
end;
|
|
end;
|
|
end;
|
|
{$ENDIF USE_STRINGINTERN_FOR_NAMES}
|
|
|
|
{ TJsonOutputWriter }
|
|
|
|
procedure TJsonOutputWriter.Init(ACompact: Boolean; AStream: TStream; AEncoding: TEncoding; ALines: TStrings);
|
|
begin
|
|
FCompact := ACompact;
|
|
FStream := AStream;
|
|
FEncoding := AEncoding;
|
|
|
|
if ALines <> nil then
|
|
begin
|
|
FCompact := False; // there is no compact version for TStrings
|
|
FLines := ALines;
|
|
end
|
|
else
|
|
begin
|
|
FStreamEncodingBuffer := nil;
|
|
FStreamEncodingBufferLen := 0;
|
|
FLines := nil;
|
|
FStringBuffer.Init;
|
|
end;
|
|
|
|
if not ACompact then
|
|
begin
|
|
FLastLine.Init;
|
|
|
|
FIndent := 0;
|
|
FLastType := ltInitial;
|
|
|
|
// Set up some initial indention levels
|
|
// TODO change to one buffer with #0 vs. IndentChar
|
|
FIndents := AllocMem(5 * SizeOf(string));
|
|
FIndentsLen := 5;
|
|
//FIndents[0] := '';
|
|
FIndents[1] := JsonSerializationConfig.IndentChar;
|
|
FIndents[2] := FIndents[1] + JsonSerializationConfig.IndentChar;
|
|
FIndents[3] := FIndents[2] + JsonSerializationConfig.IndentChar;
|
|
FIndents[4] := FIndents[3] + JsonSerializationConfig.IndentChar;
|
|
end;
|
|
end;
|
|
|
|
procedure TJsonOutputWriter.FreeIndents;
|
|
var
|
|
I: Integer;
|
|
begin
|
|
for I := 0 to FIndentsLen - 1 do
|
|
FIndents[I] := '';
|
|
FreeMem(FIndents);
|
|
end;
|
|
|
|
function TJsonOutputWriter.Done: string;
|
|
begin
|
|
if not FCompact then
|
|
begin
|
|
FlushLastLine;
|
|
FreeIndents;
|
|
FLastLine.Done;
|
|
end;
|
|
|
|
if FLines = nil then
|
|
FStringBuffer.DoneConvertToString(Result);
|
|
end;
|
|
|
|
procedure TJsonOutputWriter.LinesDone;
|
|
begin
|
|
FreeIndents;
|
|
FlushLastLine;
|
|
FLastLine.Done;
|
|
end;
|
|
|
|
procedure TJsonOutputWriter.StreamDone;
|
|
begin
|
|
if not FCompact then
|
|
begin
|
|
FlushLastLine;
|
|
FreeIndents;
|
|
FLastLine.Done;
|
|
end;
|
|
|
|
if FStream <> nil then
|
|
StreamFlush;
|
|
if FStreamEncodingBuffer <> nil then
|
|
FreeMem(FStreamEncodingBuffer);
|
|
FStringBuffer.Done;
|
|
end;
|
|
|
|
procedure TJsonOutputWriter.FlushLastLine;
|
|
var
|
|
S: Pointer;
|
|
begin
|
|
if FLastLine.Len > 0 then
|
|
begin
|
|
if FLines = nil then
|
|
begin
|
|
FLastLine.FlushToStringBuffer(FStringBuffer);
|
|
FStringBuffer.Append(JsonSerializationConfig.LineBreak);
|
|
end
|
|
else
|
|
begin
|
|
S := nil;
|
|
try
|
|
FLastLine.FlushToString(string(S));
|
|
FLines.Add(string(S));
|
|
finally
|
|
string(S) := '';
|
|
end;
|
|
end
|
|
end;
|
|
end;
|
|
|
|
procedure TJsonOutputWriter.StreamFlush;
|
|
var
|
|
Size: NativeInt;
|
|
begin
|
|
if FStringBuffer.Len > 0 then
|
|
begin
|
|
if FEncoding = TEncoding.Unicode then
|
|
begin
|
|
FStream.Write(FStringBuffer.Data[0], FStringBuffer.Len);
|
|
FStringBuffer.FLen := 0;
|
|
end
|
|
else if FStream is TMemoryStream then
|
|
FStringBuffer.FlushToMemoryStream(TMemoryStream(FStream), FEncoding)
|
|
else
|
|
begin
|
|
Size := FStringBuffer.FlushToBytes(FStreamEncodingBuffer, FStreamEncodingBufferLen, FEncoding);
|
|
if Size > 0 then
|
|
FStream.Write(FStreamEncodingBuffer[0], Size);
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
procedure TJsonOutputWriter.StreamFlushPossible;
|
|
const
|
|
MinFlushBufferLen = 1024 * 1024;
|
|
begin
|
|
if (FStream <> nil) and (FStringBuffer.Len >= MinFlushBufferLen) then
|
|
StreamFlush;
|
|
end;
|
|
|
|
procedure TJsonOutputWriter.ExpandIndents;
|
|
begin
|
|
Inc(FIndentsLen);
|
|
ReallocMem(Pointer(FIndents), FIndentsLen * SizeOf(string));
|
|
Pointer(FIndents[FIndent]) := nil;
|
|
FIndents[FIndent] := FIndents[FIndent - 1] + JsonSerializationConfig.IndentChar;
|
|
end;
|
|
|
|
procedure TJsonOutputWriter.AppendLine(AppendOn: TLastType; const S: string);
|
|
begin
|
|
if FLastType = AppendOn then
|
|
FLastLine.Append(S)
|
|
else
|
|
begin
|
|
FlushLastLine;
|
|
StreamFlushPossible;
|
|
FLastLine.Append2(FIndents[FIndent], PChar(Pointer(S)), Length(S));
|
|
end;
|
|
end;
|
|
|
|
procedure TJsonOutputWriter.AppendLine(AppendOn: TLastType; P: PChar; Len: Integer);
|
|
begin
|
|
if FLastType = AppendOn then
|
|
FLastLine.Append(P, Len)
|
|
else
|
|
begin
|
|
FlushLastLine;
|
|
StreamFlushPossible;
|
|
FLastLine.Append2(FIndents[FIndent], P, Len);
|
|
end;
|
|
end;
|
|
|
|
procedure TJsonOutputWriter.Indent(const S: string);
|
|
var
|
|
This: ^TJsonOutputWriter;
|
|
begin
|
|
This := @Self;
|
|
if This.FCompact then
|
|
begin
|
|
This.FStringBuffer.Append(S);
|
|
This.StreamFlushPossible; // inlined
|
|
end
|
|
else
|
|
begin
|
|
This.AppendLine(ltIntro, S); // inlined
|
|
Inc(This.FIndent);
|
|
if This.FIndent >= This.FIndentsLen then // this is a new indention level
|
|
ExpandIndents;
|
|
This.FLastType := ltIndent;
|
|
end;
|
|
end;
|
|
|
|
procedure TJsonOutputWriter.Unindent(const S: string);
|
|
var
|
|
This: ^TJsonOutputWriter;
|
|
begin
|
|
This := @Self;
|
|
if This.FCompact then
|
|
begin
|
|
This.FStringBuffer.Append(S);
|
|
This.StreamFlushPossible; // inlined
|
|
end
|
|
else
|
|
begin
|
|
Dec(This.FIndent);
|
|
//Assert(FIndent >= 0);
|
|
This.AppendLine(ltIndent, S); // inlined
|
|
This.FLastType := ltUnindent;
|
|
end;
|
|
end;
|
|
|
|
procedure TJsonOutputWriter.AppendIntro(P: PChar; Len: Integer);
|
|
const
|
|
sQuoteCharColon = '":';
|
|
var
|
|
This: ^TJsonOutputWriter;
|
|
begin
|
|
This := @Self;
|
|
if This.FCompact then
|
|
begin
|
|
This.FStringBuffer.Append2(sQuoteChar, P, Len).Append(sQuoteCharColon, 2);
|
|
This.StreamFlushPossible; // inlined
|
|
end
|
|
else
|
|
begin
|
|
FlushLastLine;
|
|
This.StreamFlushPossible; // inlined
|
|
This.FLastLine.Append(This.FIndents[This.FIndent]).Append2(sQuoteChar, P, Len).Append('": ', 3);
|
|
This.FLastType := ltIntro;
|
|
end;
|
|
end;
|
|
|
|
procedure TJsonOutputWriter.AppendValue(P: PChar; Len: Integer);
|
|
var
|
|
This: ^TJsonOutputWriter;
|
|
begin
|
|
This := @Self;
|
|
if This.FCompact then
|
|
begin
|
|
This.FStringBuffer.Append(P, Len);
|
|
This.StreamFlushPossible; // inlined
|
|
end
|
|
else
|
|
begin
|
|
This.AppendLine(ltIntro, P, Len); // inlined
|
|
This.FLastType := ltValue;
|
|
end;
|
|
end;
|
|
|
|
procedure TJsonOutputWriter.AppendValue(const S: string);
|
|
var
|
|
This: ^TJsonOutputWriter;
|
|
begin
|
|
This := @Self;
|
|
if This.FCompact then
|
|
begin
|
|
This.FStringBuffer.Append(S);
|
|
This.StreamFlushPossible; // inlined
|
|
end
|
|
else
|
|
begin
|
|
This.AppendLine(ltIntro, S); // inlined
|
|
This.FLastType := ltValue;
|
|
end;
|
|
end;
|
|
|
|
procedure TJsonOutputWriter.AppendStrValue(P: PChar; Len: Integer);
|
|
var
|
|
This: ^TJsonOutputWriter;
|
|
begin
|
|
This := @Self;
|
|
if This.FCompact then
|
|
begin
|
|
This.FStringBuffer.Append3(sQuoteChar, P, Len, sQuoteChar);
|
|
This.StreamFlushPossible; // inlined
|
|
end
|
|
else
|
|
begin
|
|
if This.FLastType = ltIntro then
|
|
This.FLastLine.Append3(sQuoteChar, P, Len, sQuoteChar)
|
|
else
|
|
begin
|
|
FlushLastLine;
|
|
This.StreamFlushPossible; // inlined
|
|
This.FLastLine.Append(This.FIndents[This.FIndent]).Append3(sQuoteChar, P, Len, sQuoteChar);
|
|
end;
|
|
This.FLastType := ltValue;
|
|
end;
|
|
end;
|
|
|
|
procedure TJsonOutputWriter.AppendSeparator(const S: string);
|
|
var
|
|
This: ^TJsonOutputWriter;
|
|
begin
|
|
This := @Self;
|
|
if This.FCompact then
|
|
begin
|
|
This.FStringBuffer.Append(S);
|
|
This.StreamFlushPossible; // inlined
|
|
end
|
|
else
|
|
begin
|
|
if This.FLastType in [ltValue, ltUnindent] then
|
|
This.FLastLine.Append(S)
|
|
else
|
|
begin
|
|
FlushLastLine;
|
|
This.StreamFlushPossible; // inlined
|
|
This.FLastLine.Append2(This.FIndents[This.FIndent], PChar(Pointer(S)), Length(S));
|
|
end;
|
|
This.FLastType := ltSeparator;
|
|
end;
|
|
end;
|
|
|
|
{ TUtf8JsonReader }
|
|
|
|
constructor TUtf8JsonReader.Create(S: PByte; Len: NativeInt{$IFDEF SUPPORT_PROGRESS}; AProgress: PJsonReaderProgressRec{$ENDIF});
|
|
begin
|
|
inherited Create(S{$IFDEF SUPPORT_PROGRESS}, Len * SizeOf(Byte), AProgress{$ENDIF});
|
|
FText := S;
|
|
FTextEnd := S + Len;
|
|
end;
|
|
|
|
function TUtf8JsonReader.GetCharOffset(StartPos: Pointer): NativeInt;
|
|
begin
|
|
Result := FText - PByte(StartPos);
|
|
end;
|
|
|
|
function TUtf8JsonReader.Next: Boolean;
|
|
label
|
|
EndReached;
|
|
var
|
|
P, EndP: PByte;
|
|
Ch: Byte;
|
|
begin
|
|
P := FText;
|
|
EndP := FTextEnd;
|
|
{$IF CompilerVersion <= 30.0} // Delphi 10 Seattle or older
|
|
{$IFNDEF CPUX64}
|
|
Ch := 0; // silence compiler warning
|
|
{$ENDIF ~CPUX64}
|
|
{$IFEND}
|
|
while True do
|
|
begin
|
|
while True do
|
|
begin
|
|
if P = EndP then
|
|
goto EndReached; // use GOTO to eliminate doing the "P = EndP", "P < EndP" 3 times - wish there was a "Break loop-label;"
|
|
Ch := P^;
|
|
if Ch > 32 then
|
|
Break;
|
|
if not (Ch in [9, 32]) then
|
|
Break;
|
|
Inc(P);
|
|
end;
|
|
|
|
case Ch of
|
|
10:
|
|
begin
|
|
FLineStart := P + 1;
|
|
Inc(FLineNum);
|
|
end;
|
|
13:
|
|
begin
|
|
Inc(FLineNum);
|
|
if (P + 1 < EndP) and (P[1] = 10) then
|
|
Inc(P);
|
|
FLineStart := P + 1;
|
|
end;
|
|
else
|
|
Break;
|
|
end;
|
|
Inc(P);
|
|
end;
|
|
|
|
EndReached:
|
|
if P < EndP then
|
|
begin
|
|
case P^ of
|
|
Ord('{'):
|
|
begin
|
|
FLook.Kind := jtkLBrace;
|
|
FText := P + 1;
|
|
end;
|
|
Ord('}'):
|
|
begin
|
|
FLook.Kind := jtkRBrace;
|
|
FText := P + 1;
|
|
end;
|
|
Ord('['):
|
|
begin
|
|
FLook.Kind := jtkLBracket;
|
|
FText := P + 1;
|
|
end;
|
|
Ord(']'):
|
|
begin
|
|
FLook.Kind := jtkRBracket;
|
|
FText := P + 1;
|
|
end;
|
|
Ord(':'):
|
|
begin
|
|
FLook.Kind := jtkColon;
|
|
FText := P + 1;
|
|
end;
|
|
Ord(','):
|
|
begin
|
|
FLook.Kind := jtkComma;
|
|
FText := P + 1;
|
|
end;
|
|
Ord('"'): // String
|
|
begin
|
|
LexString(P{$IFDEF CPUARM}, EndP{$ENDIF});
|
|
{$IFDEF SUPPORT_PROGRESS}
|
|
if FProgress <> nil then
|
|
CheckProgress(FText);
|
|
{$ENDIF SUPPORT_PROGRESS}
|
|
end;
|
|
Ord('-'), Ord('0')..Ord('9'), Ord('.'): // Number
|
|
begin
|
|
LexNumber(P{$IFDEF CPUARM}, EndP{$ENDIF});
|
|
{$IFDEF SUPPORT_PROGRESS}
|
|
if FProgress <> nil then
|
|
CheckProgress(FText);
|
|
{$ENDIF SUPPORT_PROGRESS}
|
|
end
|
|
else
|
|
LexIdent(P{$IFDEF CPUARM}, EndP{$ENDIF}); // Ident/Bool/NULL
|
|
{$IFDEF SUPPORT_PROGRESS}
|
|
if FProgress <> nil then
|
|
CheckProgress(FText);
|
|
{$ENDIF SUPPORT_PROGRESS}
|
|
end;
|
|
Result := True;
|
|
end
|
|
else
|
|
begin
|
|
FText := EndP;
|
|
FLook.Kind := jtkEof;
|
|
Result := False;
|
|
end;
|
|
end;
|
|
|
|
procedure TUtf8JsonReader.LexString(P: PByte{$IFDEF CPUARM}; EndP: PByte{$ENDIF});
|
|
var
|
|
{$IFNDEF CPUARM}
|
|
EndP: PByte;
|
|
{$ENDIF ~CPUARM}
|
|
EscapeSequences: PByte;
|
|
Ch: Byte;
|
|
Idx: Integer;
|
|
begin
|
|
Inc(P); // skip initiating '"'
|
|
{$IFNDEF CPUARM}
|
|
EndP := FTextEnd;
|
|
{$ENDIF ~CPUARM}
|
|
EscapeSequences := nil;
|
|
Ch := 0;
|
|
Idx := P - EndP;
|
|
|
|
// find the string end
|
|
repeat
|
|
if Idx = 0 then
|
|
Break;
|
|
Ch := EndP[Idx];
|
|
if (Ch = Byte(Ord('"'))) or (Ch = 10) or (Ch = 13) then
|
|
Break;
|
|
Inc(Idx);
|
|
if Ch <> Byte(Ord('\')) then
|
|
Continue;
|
|
if Idx = 0 then // Eof reached in an escaped char => broken JSON string
|
|
Break;
|
|
if EscapeSequences = nil then
|
|
EscapeSequences := @EndP[Idx];
|
|
Inc(Idx);
|
|
until False;
|
|
|
|
if Idx = 0 then
|
|
begin
|
|
FText := P - 1;
|
|
TJsonReader.StringNotClosedError(Self);
|
|
end;
|
|
|
|
EndP := @EndP[Idx];
|
|
if EscapeSequences = nil then
|
|
SetStringUtf8(FLook.S, P, EndP - P)
|
|
else
|
|
TUtf8JsonReader.JSONUtf8StrToStr(P, EndP, EscapeSequences - P, FLook.S, Self);
|
|
|
|
if Ch = Byte(Ord('"')) then
|
|
Inc(EndP);
|
|
FLook.Kind := jtkString;
|
|
FText := EndP;
|
|
|
|
if Ch in [10, 13] then
|
|
TJsonReader.InvalidStringCharacterError(Self);
|
|
end;
|
|
|
|
{$IFDEF ASMSUPPORT}
|
|
{$IFDEF CPUX64}
|
|
function ParseUInt64Utf8(P, EndP: PByte): UInt64;
|
|
// RCX = P
|
|
// RDX = EndP
|
|
asm
|
|
cmp rcx, rdx
|
|
jge @@LeaveFail
|
|
|
|
mov r8, rdx
|
|
sub rcx, r8
|
|
// r8+rcx = EndP + NegOffset = P => NegOffset can be incremented and checked for zero
|
|
|
|
movzx rax, BYTE PTR [r8+rcx]
|
|
sub al, '0'
|
|
add rcx, 1
|
|
jz @@Leave
|
|
|
|
@@Loop:
|
|
add rax, rax
|
|
// rax = 2*Result
|
|
lea rax, [rax+rax*4]
|
|
// rax = (2*Result)*4 + (2*Result) = 10*Result
|
|
|
|
movzx rdx, BYTE PTR [r8+rcx]
|
|
sub dl, '0'
|
|
add rax, rdx
|
|
|
|
add rcx, 1
|
|
jnz @@Loop
|
|
|
|
@@Leave:
|
|
ret
|
|
@@LeaveFail:
|
|
xor rax, rax
|
|
end;
|
|
{$ENDIF CPUX64}
|
|
{$IFDEF CPUX86}
|
|
function ParseUInt64Utf8(P, EndP: PByte): UInt64;
|
|
asm
|
|
cmp eax, edx
|
|
jge @@LeaveFail
|
|
|
|
push esi
|
|
push edi
|
|
push ebx
|
|
|
|
mov esi, edx
|
|
mov edi, eax
|
|
sub edi, edx
|
|
// esi+edi = EndP + NegOffset = P => NegOffset can be incremented and checked for zero
|
|
|
|
xor edx, edx
|
|
movzx eax, BYTE PTR [esi+edi]
|
|
sub al, '0'
|
|
add edi, 1
|
|
jz @@PopLeave
|
|
|
|
@@Loop:
|
|
add eax, eax
|
|
adc edx, edx
|
|
// eax:edx = 2*Result
|
|
mov ebx, eax
|
|
mov ecx, edx
|
|
// ebx:ecx = 2*Result
|
|
shld edx, eax, 2
|
|
shl eax, 2
|
|
// eax:edx = (2*Result)*4
|
|
add eax, ebx
|
|
adc edx, ecx
|
|
// eax:edx = (2*Result)*4 + (2*Result) = 10*Result
|
|
|
|
movzx ecx, BYTE PTR [esi+edi]
|
|
sub cl, '0'
|
|
add eax, ecx
|
|
adc edx, 0
|
|
|
|
add edi, 1
|
|
jnz @@Loop
|
|
|
|
@@PopLeave:
|
|
pop ebx
|
|
pop edi
|
|
pop esi
|
|
@@Leave:
|
|
ret
|
|
@@LeaveFail:
|
|
xor eax, eax
|
|
xor edx, edx
|
|
end;
|
|
{$ENDIF CPUX86}
|
|
{$ELSE}
|
|
function ParseUInt64Utf8(P, EndP: PByte): UInt64;
|
|
begin
|
|
if P = EndP then
|
|
Result := 0
|
|
else
|
|
begin
|
|
Result := P^ - Byte(Ord('0'));
|
|
Inc(P);
|
|
while P < EndP do
|
|
begin
|
|
Result := Result * 10 + (P^ - Byte(Ord('0')));
|
|
Inc(P);
|
|
end;
|
|
end;
|
|
end;
|
|
{$ENDIF ASMSUPPORT}
|
|
|
|
function ParseAsDoubleUtf8(F, P: PByte): Double;
|
|
begin
|
|
Result := 0.0;
|
|
while F < P do
|
|
begin
|
|
Result := Result * 10 + (F^ - Byte(Ord('0')));
|
|
Inc(F);
|
|
end;
|
|
end;
|
|
|
|
procedure TUtf8JsonReader.LexNumber(P: PByte{$IFDEF CPUARM}; EndP: PByte{$ENDIF});
|
|
var
|
|
F: PByte;
|
|
{$IFNDEF CPUARM}
|
|
EndP: PByte;
|
|
{$ENDIF ~CPUARM}
|
|
EndInt64P: PByte;
|
|
Ch: Byte;
|
|
Value, Scale: Double;
|
|
Exponent, IntValue: Integer;
|
|
Neg, NegE: Boolean;
|
|
DigitCount: Integer;
|
|
begin
|
|
{$IFNDEF CPUARM}
|
|
EndP := FTextEnd;
|
|
{$ENDIF ~CPUARM}
|
|
Neg := False;
|
|
|
|
Ch := P^;
|
|
if Ch = Byte(Ord('-')) then
|
|
begin
|
|
Inc(P);
|
|
if P >= EndP then
|
|
begin
|
|
FLook.Kind := jtkInvalidSymbol;
|
|
FText := P;
|
|
Exit;
|
|
end;
|
|
Neg := True;
|
|
Ch := P^;
|
|
end;
|
|
F := P;
|
|
|
|
Inc(P);
|
|
if Ch <> Byte(Ord('0')) then
|
|
begin
|
|
if Ch in [Ord('1')..Ord('9')] then
|
|
begin
|
|
while (P < EndP) and (P^ in [Ord('0')..Ord('9')]) do
|
|
Inc(P);
|
|
end
|
|
else
|
|
begin
|
|
FLook.Kind := jtkInvalidSymbol;
|
|
FText := P;
|
|
Exit;
|
|
end;
|
|
end;
|
|
|
|
DigitCount := P - F;
|
|
if DigitCount <= 9 then // Int32 fits 9 digits
|
|
begin
|
|
IntValue := 0;
|
|
while F < P do
|
|
begin
|
|
IntValue := IntValue * 10 + (F^ - Byte(Ord('0')));
|
|
Inc(F);
|
|
end;
|
|
FLook.HI := 0;
|
|
FLook.I := IntValue;
|
|
FLook.Kind := jtkInt;
|
|
if not (P^ in [Ord('.'), Ord('E'), Ord('e')]) then
|
|
begin
|
|
// just an integer
|
|
if Neg then
|
|
FLook.I := -FLook.I;
|
|
FText := P;
|
|
Exit;
|
|
end;
|
|
Value := FLook.I;
|
|
end
|
|
else if DigitCount <= 20 then // UInt64 fits 20 digits (not all)
|
|
begin
|
|
FLook.U := ParseUInt64Utf8(F, P);
|
|
if (DigitCount = 20) and (FLook.U mod 10 <> PByte(P - 1)^ - Byte(Ord('0'))) then // overflow => too large
|
|
Value := ParseAsDoubleUtf8(F, P)
|
|
else if Neg and ((DigitCount = 20) or ((DigitCount = 19) and (FLook.HI and $80000000 <> 0))) then
|
|
// "negative UInt64" doesn't fit into UInt64/Int64 => use Double
|
|
Value := FLook.U
|
|
else
|
|
begin
|
|
FLook.Kind := jtkLong;
|
|
case DigitCount of
|
|
19:
|
|
if FLook.HI and $80000000 <> 0 then // can't be negative because we cached that case already
|
|
FLook.Kind := jtkULong;
|
|
20:
|
|
FLook.Kind := jtkULong;
|
|
end;
|
|
|
|
if not (P^ in [Ord('.'), Ord('E'), Ord('e')]) then
|
|
begin
|
|
// just an integer
|
|
if Neg then
|
|
begin
|
|
if (FLook.HI = 0) and (FLook.I >= 0) then // 32bit Integer
|
|
begin
|
|
FLook.I := -FLook.I;
|
|
FLook.Kind := jtkInt;
|
|
end
|
|
else // 64bit Integer
|
|
FLook.L := -FLook.L;
|
|
end;
|
|
FText := P;
|
|
Exit;
|
|
end;
|
|
Value := FLook.U;
|
|
end;
|
|
end
|
|
else
|
|
Value := ParseAsDoubleUtf8(F, P);
|
|
|
|
// decimal digits
|
|
if (P + 1 < EndP) and (P^ = Byte(Ord('.'))) then
|
|
begin
|
|
Inc(P);
|
|
F := P;
|
|
EndInt64P := F + 18;
|
|
if EndInt64P > EndP then
|
|
EndInt64P := EndP;
|
|
while (P < EndInt64P) and (P^ in [Ord('0')..Ord('9')]) do
|
|
Inc(P);
|
|
Value := Value + ParseUInt64Utf8(F, P) / Power10[P - F];
|
|
|
|
// "Double" can't handle that many digits
|
|
while (P < EndP) and (P^ in [Ord('0')..Ord('9')]) do
|
|
Inc(P);
|
|
end;
|
|
|
|
// exponent
|
|
if (P < EndP) and (P^ in [Ord('e'), Ord('E')]) then
|
|
begin
|
|
Inc(P);
|
|
NegE := False;
|
|
if (P < EndP) then
|
|
begin
|
|
case P^ of
|
|
Ord('-'):
|
|
begin
|
|
NegE := True;
|
|
Inc(P);
|
|
end;
|
|
Ord('+'):
|
|
Inc(P);
|
|
end;
|
|
Exponent := 0;
|
|
F := P;
|
|
while (P < EndP) and (P^ in [Ord('0')..Ord('9')]) do
|
|
begin
|
|
Exponent := Exponent * 10 + (P^ - Byte(Ord('0')));
|
|
Inc(P);
|
|
end;
|
|
if P = F then
|
|
begin
|
|
// no exponent
|
|
FLook.Kind := jtkInvalidSymbol;
|
|
FText := P;
|
|
Exit;
|
|
end;
|
|
|
|
if Exponent > 308 then
|
|
Exponent := 308;
|
|
|
|
Scale := 1.0;
|
|
while Exponent >= 50 do
|
|
begin
|
|
Scale := Scale * 1E50;
|
|
Dec(Exponent, 50);
|
|
end;
|
|
while Exponent >= 18 do
|
|
begin
|
|
Scale := Scale * 1E18;
|
|
Dec(Exponent, 18);
|
|
end;
|
|
Scale := Scale * Power10[Exponent];
|
|
|
|
if NegE then
|
|
Value := Value / Scale
|
|
else
|
|
Value := Value * Scale;
|
|
end
|
|
else
|
|
begin
|
|
FLook.Kind := jtkInvalidSymbol;
|
|
FText := P;
|
|
Exit;
|
|
end;
|
|
end;
|
|
|
|
if Neg then
|
|
FLook.F := -Value
|
|
else
|
|
FLook.F := Value;
|
|
FLook.Kind := jtkFloat;
|
|
FText := P;
|
|
end;
|
|
|
|
procedure TUtf8JsonReader.LexIdent(P: PByte{$IFDEF CPUARM}; EndP: PByte{$ENDIF});
|
|
const
|
|
{$IFDEF BIGENDIAN}
|
|
// Big Endian
|
|
NullStr = LongWord((Ord('n') shl 24) or (Ord('u') shl 16) or (Ord('l') shl 8) or Ord('l'));
|
|
TrueStr = LongWord((Ord('t') shl 24) or (Ord('r') shl 16) or (Ord('u') shl 8) or Ord('e'));
|
|
FalseStr = LongWord((Ord('a') shl 24) or (Ord('l') shl 16) or (Ord('s') shl 8) or Ord('e'));
|
|
{$ELSE}
|
|
// Little Endian
|
|
NullStr = LongWord(Ord('n') or (Ord('u') shl 8) or (Ord('l') shl 16) or (Ord('l') shl 24));
|
|
TrueStr = LongWord(Ord('t') or (Ord('r') shl 8) or (Ord('u') shl 16) or (Ord('e') shl 24));
|
|
FalseStr = LongWord(Ord('a') or (Ord('l') shl 8) or (Ord('s') shl 16) or (Ord('e') shl 24));
|
|
{$ENDIF BIGENDIAN}
|
|
var
|
|
F: PByte;
|
|
{$IFNDEF CPUARM}
|
|
EndP: PByte;
|
|
{$ENDIF ~CPUARM}
|
|
L: LongWord;
|
|
begin
|
|
F := P;
|
|
{$IFNDEF CPUARM}
|
|
EndP := FTextEnd;
|
|
{$ENDIF ~CPUARM}
|
|
case P^ of
|
|
Ord('A')..Ord('Z'), Ord('a')..Ord('z'), Ord('_'), Ord('$'):
|
|
begin
|
|
Inc(P);
|
|
// DCC64 generates "bt mem,reg" code
|
|
// while (P < EndP) and (P^ in [Ord('A')..Ord('Z'), Ord('a')..Ord('z'), Ord('_'), Ord('0')..Ord('9')]) do
|
|
// Inc(P);
|
|
while P < EndP do
|
|
case P^ of
|
|
Ord('A')..Ord('Z'), Ord('a')..Ord('z'), Ord('_'), Ord('0')..Ord('9'): Inc(P);
|
|
else
|
|
Break;
|
|
end;
|
|
|
|
L := P - F;
|
|
if L = 4 then
|
|
begin
|
|
L := PLongWord(F)^;
|
|
if L = NullStr then
|
|
FLook.Kind := jtkNull
|
|
else if L = TrueStr then
|
|
FLook.Kind := jtkTrue
|
|
else
|
|
begin
|
|
SetStringUtf8(FLook.S, F, P - F);
|
|
FLook.Kind := jtkIdent;
|
|
end;
|
|
end
|
|
else if (L = 5) and (F^ = Ord('f')) and (PLongWord(F + 1)^ = FalseStr) then
|
|
FLook.Kind := jtkFalse
|
|
else
|
|
begin
|
|
SetStringUtf8(FLook.S, F, P - F);
|
|
FLook.Kind := jtkIdent;
|
|
end;
|
|
end;
|
|
else
|
|
FLook.Kind := jtkInvalidSymbol;
|
|
Inc(P);
|
|
end;
|
|
FText := P;
|
|
end;
|
|
|
|
{ TStringJsonReader }
|
|
|
|
constructor TStringJsonReader.Create(S: PChar; Len: Integer{$IFDEF SUPPORT_PROGRESS}; AProgress: PJsonReaderProgressRec{$ENDIF});
|
|
begin
|
|
inherited Create(S{$IFDEF SUPPORT_PROGRESS}, Len * SizeOf(WideChar), AProgress{$ENDIF});
|
|
FText := S;
|
|
FTextEnd := S + Len;
|
|
end;
|
|
|
|
function TStringJsonReader.GetCharOffset(StartPos: Pointer): NativeInt;
|
|
begin
|
|
Result := FText - PChar(StartPos);
|
|
end;
|
|
|
|
function TStringJsonReader.Next: Boolean;
|
|
var
|
|
P, EndP: PChar;
|
|
begin
|
|
P := FText;
|
|
EndP := FTextEnd;
|
|
while (P < EndP) and (P^ <= #32) do
|
|
Inc(P);
|
|
|
|
if P < EndP then
|
|
begin
|
|
case P^ of
|
|
'{':
|
|
begin
|
|
FLook.Kind := jtkLBrace;
|
|
FText := P + 1;
|
|
end;
|
|
'}':
|
|
begin
|
|
FLook.Kind := jtkRBrace;
|
|
FText := P + 1;
|
|
end;
|
|
'[':
|
|
begin
|
|
FLook.Kind := jtkLBracket;
|
|
FText := P + 1;
|
|
end;
|
|
']':
|
|
begin
|
|
FLook.Kind := jtkRBracket;
|
|
FText := P + 1;
|
|
end;
|
|
':':
|
|
begin
|
|
FLook.Kind := jtkColon;
|
|
FText := P + 1;
|
|
end;
|
|
',':
|
|
begin
|
|
FLook.Kind := jtkComma;
|
|
FText := P + 1;
|
|
end;
|
|
'"': // String
|
|
begin
|
|
LexString(P{$IFDEF CPUARM}, EndP{$ENDIF});
|
|
{$IFDEF SUPPORT_PROGRESS}
|
|
if FProgress <> nil then
|
|
CheckProgress(FText);
|
|
{$ENDIF SUPPORT_PROGRESS}
|
|
end;
|
|
'-', '0'..'9', '.': // Number
|
|
begin
|
|
LexNumber(P{$IFDEF CPUARM}, EndP{$ENDIF});
|
|
{$IFDEF SUPPORT_PROGRESS}
|
|
if FProgress <> nil then
|
|
CheckProgress(FText);
|
|
{$ENDIF SUPPORT_PROGRESS}
|
|
end
|
|
else
|
|
LexIdent(P{$IFDEF CPUARM}, EndP{$ENDIF}); // Ident/Bool/NULL
|
|
{$IFDEF SUPPORT_PROGRESS}
|
|
if FProgress <> nil then
|
|
CheckProgress(FText);
|
|
{$ENDIF SUPPORT_PROGRESS}
|
|
end;
|
|
Result := True;
|
|
end
|
|
else
|
|
begin
|
|
FText := EndP;
|
|
FLook.Kind := jtkEof;
|
|
Result := False;
|
|
end;
|
|
end;
|
|
|
|
procedure TStringJsonReader.LexString(P: PChar{$IFDEF CPUARM}; EndP: PChar{$ENDIF});
|
|
var
|
|
{$IFNDEF CPUARM}
|
|
EndP: PChar;
|
|
{$ENDIF ~CPUARM}
|
|
EscapeSequences: PChar;
|
|
Ch: Char;
|
|
Idx: Integer;
|
|
begin
|
|
Inc(P); // skip initiating '"'
|
|
{$IFNDEF CPUARM}
|
|
EndP := FTextEnd;
|
|
{$ENDIF ~CPUARM}
|
|
EscapeSequences := nil;
|
|
Ch := #0;
|
|
Idx := P - EndP;
|
|
|
|
// find the string end
|
|
repeat
|
|
if Idx = 0 then
|
|
Break;
|
|
Ch := EndP[Idx];
|
|
if (Ch = '"') or (Ch = #10) or (Ch = #13) then
|
|
Break;
|
|
Inc(Idx);
|
|
if Ch <> '\' then
|
|
Continue;
|
|
if Idx = 0 then // Eof reached in an escaped char => broken JSON string
|
|
Break;
|
|
if EscapeSequences = nil then
|
|
EscapeSequences := @EndP[Idx];
|
|
Inc(Idx);
|
|
until False;
|
|
|
|
if Idx = 0 then
|
|
begin
|
|
FText := P - 1;
|
|
TJsonReader.StringNotClosedError(Self);
|
|
end;
|
|
|
|
EndP := @EndP[Idx];
|
|
if EscapeSequences = nil then
|
|
SetString(FLook.S, P, EndP - P)
|
|
else
|
|
TJsonReader.JSONStrToStr(P, EndP, EscapeSequences - P, FLook.S, Self);
|
|
|
|
if Ch = '"' then
|
|
Inc(EndP);
|
|
FLook.Kind := jtkString;
|
|
FText := EndP;
|
|
|
|
if Ch in [#10, #13] then
|
|
TJsonReader.InvalidStringCharacterError(Self);
|
|
end;
|
|
|
|
{$IFDEF ASMSUPPORT}
|
|
{$IFDEF CPUX64}
|
|
function ParseUInt64(P, EndP: PWideChar): UInt64;
|
|
// RCX = P
|
|
// RDX = EndP
|
|
asm
|
|
cmp rcx, rdx
|
|
jge @@LeaveFail
|
|
|
|
mov r8, rdx
|
|
sub rcx, r8
|
|
// r8+rcx = EndP + NegOffset = P => NegOffset can be incremented and checked for zero
|
|
|
|
movzx rax, WORD PTR [r8+rcx]
|
|
sub ax, '0'
|
|
add rcx, 2
|
|
jz @@Leave
|
|
|
|
@@Loop:
|
|
add rax, rax
|
|
// rax = 2*Result
|
|
lea rax, [rax+rax*4]
|
|
// rax = (2*Result)*4 + (2*Result) = 10*Result
|
|
|
|
movzx rdx, WORD PTR [r8+rcx]
|
|
sub dx, '0'
|
|
add rax, rdx
|
|
|
|
add rcx, 2
|
|
jnz @@Loop
|
|
|
|
@@Leave:
|
|
ret
|
|
@@LeaveFail:
|
|
xor rax, rax
|
|
end;
|
|
{$ENDIF CPUX64}
|
|
{$IFDEF CPUX86}
|
|
function ParseUInt64(P, EndP: PWideChar): UInt64;
|
|
asm
|
|
cmp eax, edx
|
|
jge @@LeaveFail
|
|
|
|
push esi
|
|
push edi
|
|
push ebx
|
|
|
|
mov esi, edx
|
|
mov edi, eax
|
|
sub edi, edx
|
|
// esi+edi = EndP + NegOffset = P => NegOffset can be incremented and checked for zero
|
|
|
|
xor edx, edx
|
|
movzx eax, WORD PTR [esi+edi]
|
|
sub ax, '0'
|
|
add edi, 2
|
|
jz @@PopLeave
|
|
|
|
@@Loop:
|
|
add eax, eax
|
|
adc edx, edx
|
|
// eax:edx = 2*Result
|
|
mov ebx, eax
|
|
mov ecx, edx
|
|
// ebx:ecx = 2*Result
|
|
shld edx, eax, 2
|
|
shl eax, 2
|
|
// eax:edx = (2*Result)*4
|
|
add eax, ebx
|
|
adc edx, ecx
|
|
// eax:edx = (2*Result)*4 + (2*Result) = 10*Result
|
|
|
|
movzx ecx, WORD PTR [esi+edi]
|
|
sub cx, '0'
|
|
add eax, ecx
|
|
adc edx, 0
|
|
|
|
add edi, 2
|
|
jnz @@Loop
|
|
|
|
@@PopLeave:
|
|
pop ebx
|
|
pop edi
|
|
pop esi
|
|
@@Leave:
|
|
ret
|
|
@@LeaveFail:
|
|
xor eax, eax
|
|
xor edx, edx
|
|
end;
|
|
{$ENDIF CPUX86}
|
|
{$ELSE}
|
|
function ParseUInt64(P, EndP: PWideChar): UInt64;
|
|
begin
|
|
if P = EndP then
|
|
Result := 0
|
|
else
|
|
begin
|
|
Result := Ord(P^) - Ord('0');
|
|
Inc(P);
|
|
while P < EndP do
|
|
begin
|
|
Result := Result * 10 + (Ord(P^) - Ord('0'));
|
|
Inc(P);
|
|
end;
|
|
end;
|
|
end;
|
|
{$ENDIF ASMSUPPORT}
|
|
|
|
function ParseAsDouble(F, P: PWideChar): Double;
|
|
begin
|
|
Result := 0.0;
|
|
while F < P do
|
|
begin
|
|
Result := Result * 10 + (Ord(F^) - Ord('0'));
|
|
Inc(F);
|
|
end;
|
|
end;
|
|
|
|
procedure TStringJsonReader.LexNumber(P: PChar{$IFDEF CPUARM}; EndP: PChar{$ENDIF});
|
|
var
|
|
F: PChar;
|
|
{$IFNDEF CPUARM}
|
|
EndP: PChar;
|
|
{$ENDIF ~CPUARM}
|
|
EndInt64P: PChar;
|
|
Ch: Char;
|
|
Value, Scale: Double;
|
|
Exponent, IntValue: Integer;
|
|
Neg, NegE: Boolean;
|
|
DigitCount: Integer;
|
|
begin
|
|
{$IFNDEF CPUARM}
|
|
EndP := FTextEnd;
|
|
{$ENDIF ~CPUARM}
|
|
Neg := False;
|
|
|
|
Ch := P^;
|
|
if Ch = '-' then
|
|
begin
|
|
Inc(P);
|
|
if P >= EndP then
|
|
begin
|
|
FLook.Kind := jtkInvalidSymbol;
|
|
FText := P;
|
|
Exit;
|
|
end;
|
|
Neg := True;
|
|
Ch := P^;
|
|
end;
|
|
F := P;
|
|
|
|
Inc(P);
|
|
if Ch <> '0' then
|
|
begin
|
|
if Ch in ['1'..'9'] then
|
|
begin
|
|
while (P < EndP) and (P^ in ['0'..'9']) do
|
|
Inc(P);
|
|
end
|
|
else
|
|
begin
|
|
FLook.Kind := jtkInvalidSymbol;
|
|
FText := P;
|
|
Exit;
|
|
end;
|
|
end;
|
|
|
|
DigitCount := P - F;
|
|
if DigitCount <= 9 then // Int32 fits 9 digits
|
|
begin
|
|
IntValue := 0;
|
|
while F < P do
|
|
begin
|
|
IntValue := IntValue * 10 + (Ord(F^) - Ord('0'));
|
|
Inc(F);
|
|
end;
|
|
FLook.HI := 0;
|
|
FLook.I := IntValue;
|
|
FLook.Kind := jtkInt;
|
|
if not (P^ in ['.', 'E', 'e']) then
|
|
begin
|
|
// just an integer
|
|
if Neg then
|
|
FLook.I := -FLook.I;
|
|
FText := P;
|
|
Exit;
|
|
end;
|
|
Value := FLook.I;
|
|
end
|
|
else if DigitCount <= 20 then // UInt64 fits 20 digits (not all)
|
|
begin
|
|
FLook.U := ParseUInt64(F, P);
|
|
if (DigitCount = 20) and (FLook.U mod 10 <> Ord(PWideChar(P - 1)^) - Ord('0')) then // overflow => too large
|
|
Value := ParseAsDouble(F, P)
|
|
else if Neg and ((DigitCount = 20) or ((DigitCount = 19) and (FLook.HI and $80000000 <> 0))) then
|
|
// "negative UInt64" doesn't fit into UInt64/Int64 => use Double
|
|
Value := FLook.U
|
|
else
|
|
begin
|
|
FLook.Kind := jtkLong;
|
|
case DigitCount of
|
|
19:
|
|
if FLook.HI and $80000000 <> 0 then // can't be negative because we cached that case already
|
|
FLook.Kind := jtkULong;
|
|
20:
|
|
FLook.Kind := jtkULong;
|
|
end;
|
|
|
|
if not (P^ in ['.', 'E', 'e']) then
|
|
begin
|
|
// just an integer
|
|
if Neg then
|
|
begin
|
|
if (FLook.HI = 0) and (FLook.I >= 0) then // 32bit Integer
|
|
begin
|
|
FLook.I := -FLook.I;
|
|
FLook.Kind := jtkInt;
|
|
end
|
|
else // 64bit Integer
|
|
FLook.L := -FLook.L;
|
|
end;
|
|
FText := P;
|
|
Exit;
|
|
end;
|
|
Value := FLook.U;
|
|
end;
|
|
end
|
|
else
|
|
Value := ParseAsDouble(F, P);
|
|
|
|
// decimal digits
|
|
if (P + 1 < EndP) and (P^ = '.') then
|
|
begin
|
|
Inc(P);
|
|
F := P;
|
|
EndInt64P := F + 18;
|
|
if EndInt64P > EndP then
|
|
EndInt64P := EndP;
|
|
while (P < EndInt64P) and (P^ in ['0'..'9']) do
|
|
Inc(P);
|
|
Value := Value + ParseUInt64(F, P) / Power10[P - F];
|
|
|
|
// "Double" can't handle that many digits
|
|
while (P < EndP) and (P^ in ['0'..'9']) do
|
|
Inc(P);
|
|
end;
|
|
|
|
// exponent
|
|
if (P < EndP) and ((P^ = 'e') or (P^ = 'E')) then
|
|
begin
|
|
Inc(P);
|
|
NegE := False;
|
|
if (P < EndP) then
|
|
begin
|
|
case P^ of
|
|
'-':
|
|
begin
|
|
NegE := True;
|
|
Inc(P);
|
|
end;
|
|
'+':
|
|
Inc(P);
|
|
end;
|
|
Exponent := 0;
|
|
F := P;
|
|
while (P < EndP) and (P^ in ['0'..'9']) do
|
|
begin
|
|
Exponent := Exponent * 10 + (Ord(P^) - Ord('0'));
|
|
Inc(P);
|
|
end;
|
|
if P = F then
|
|
begin
|
|
// no exponent
|
|
FLook.Kind := jtkInvalidSymbol;
|
|
FText := P;
|
|
Exit;
|
|
end;
|
|
|
|
if Exponent > 308 then
|
|
Exponent := 308;
|
|
|
|
Scale := 1.0;
|
|
while Exponent >= 50 do
|
|
begin
|
|
Scale := Scale * 1E50;
|
|
Dec(Exponent, 50);
|
|
end;
|
|
while Exponent >= 18 do
|
|
begin
|
|
Scale := Scale * 1E18;
|
|
Dec(Exponent, 18);
|
|
end;
|
|
Scale := Scale * Power10[Exponent];
|
|
|
|
if NegE then
|
|
Value := Value / Scale
|
|
else
|
|
Value := Value * Scale;
|
|
end
|
|
else
|
|
begin
|
|
FLook.Kind := jtkInvalidSymbol;
|
|
FText := P;
|
|
Exit;
|
|
end;
|
|
end;
|
|
|
|
if Neg then
|
|
FLook.F := -Value
|
|
else
|
|
FLook.F := Value;
|
|
FLook.Kind := jtkFloat;
|
|
FText := P;
|
|
end;
|
|
|
|
procedure TStringJsonReader.LexIdent(P: PChar{$IFDEF CPUARM}; EndP: PChar{$ENDIF});
|
|
const
|
|
{$IFDEF BIGENDIAN}
|
|
// Big Endian
|
|
NullStr1 = LongWord((Ord('n') shl 16) or Ord('u'));
|
|
NullStr2 = LongWord((Ord('l') shl 16) or Ord('l'));
|
|
TrueStr1 = LongWord((Ord('t') shl 16) or Ord('r'));
|
|
TrueStr2 = LongWord((Ord('u') shl 16) or Ord('e'));
|
|
FalseStr1 = LongWord((Ord('a') shl 16) or Ord('l'));
|
|
FalseStr2 = LongWord((Ord('s') shl 16) or Ord('e'));
|
|
{$ELSE}
|
|
// Little Endian
|
|
NullStr1 = LongWord(Ord('n') or (Ord('u') shl 16));
|
|
NullStr2 = LongWord(Ord('l') or (Ord('l') shl 16));
|
|
TrueStr1 = LongWord(Ord('t') or (Ord('r') shl 16));
|
|
TrueStr2 = LongWord(Ord('u') or (Ord('e') shl 16));
|
|
FalseStr1 = LongWord(Ord('a') or (Ord('l') shl 16));
|
|
FalseStr2 = LongWord(Ord('s') or (Ord('e') shl 16));
|
|
{$ENDIF BIGENDIAN}
|
|
var
|
|
F: PChar;
|
|
{$IFNDEF CPUARM}
|
|
EndP: PChar;
|
|
{$ENDIF ~CPUARM}
|
|
L: LongWord;
|
|
begin
|
|
F := P;
|
|
{$IFNDEF CPUARM}
|
|
EndP := FTextEnd;
|
|
{$ENDIF ~CPUARM}
|
|
case P^ of
|
|
'A'..'Z', 'a'..'z', '_', '$':
|
|
begin
|
|
Inc(P);
|
|
// DCC64 generates "bt mem,reg" code
|
|
// while (P < EndP) and (P^ in ['A'..'Z', 'a'..'z', '_', '0'..'9']) do
|
|
// Inc(P);
|
|
while P < EndP do
|
|
case P^ of
|
|
'A'..'Z', 'a'..'z', '_', '0'..'9': Inc(P);
|
|
else
|
|
Break;
|
|
end;
|
|
|
|
L := P - F;
|
|
if L = 4 then
|
|
begin
|
|
L := PLongWord(F)^;
|
|
if (L = NullStr1) and (PLongWord(F + 2)^ = NullStr2) then
|
|
FLook.Kind := jtkNull
|
|
else if (L = TrueStr1) and (PLongWord(F + 2)^ = TrueStr2) then
|
|
FLook.Kind := jtkTrue
|
|
else
|
|
begin
|
|
SetString(FLook.S, F, P - F);
|
|
FLook.Kind := jtkIdent;
|
|
end;
|
|
end
|
|
else if (L = 5) and (F^ = 'f') and (PLongWord(F + 1)^ = FalseStr1) and (PLongWord(F + 3)^ = FalseStr2) then
|
|
FLook.Kind := jtkFalse
|
|
else
|
|
begin
|
|
SetString(FLook.S, F, P - F);
|
|
FLook.Kind := jtkIdent;
|
|
end;
|
|
end;
|
|
else
|
|
FLook.Kind := jtkInvalidSymbol;
|
|
Inc(P);
|
|
end;
|
|
FText := P;
|
|
end;
|
|
|
|
{ TJsonDataValueHelper }
|
|
|
|
class operator TJsonDataValueHelper.Implicit(const Value: string): TJsonDataValueHelper;
|
|
begin
|
|
Result.FData.FName := '';
|
|
Result.FData.FNameResolver := nil;
|
|
Result.FData.FIntern := nil;
|
|
{$IFDEF AUTOREFCOUNT}
|
|
if Result.FData.FObj <> nil then
|
|
Result.FData.FObj := nil;
|
|
{$ENDIF AUTOREFCOUNT}
|
|
Result.FData.FTyp := jdtString;
|
|
Result.FData.FValue := Value;
|
|
end;
|
|
|
|
class operator TJsonDataValueHelper.Implicit(const Value: TJsonDataValueHelper): string;
|
|
begin
|
|
if Value.FData.FIntern <> nil then
|
|
Result := Value.FData.FIntern.Value
|
|
else
|
|
case Value.FData.FTyp of
|
|
jdtString:
|
|
Result := Value.FData.FValue;
|
|
jdtInt:
|
|
Result := IntToStr(Value.FData.FIntValue);
|
|
jdtLong:
|
|
Result := IntToStr(Value.FData.FLongValue);
|
|
jdtULong:
|
|
Result := UIntToStr(Value.FData.FULongValue);
|
|
jdtFloat:
|
|
Result := FloatToStr(Value.FData.FFloatValue, JSONFormatSettings);
|
|
jdtDateTime:
|
|
Result := TJsonBaseObject.DateTimeToJSON(Value.FData.FDateTimeValue, JsonSerializationConfig.UseUtcTime);
|
|
jdtUtcDateTime:
|
|
Result := TJsonBaseObject.UtcDateTimeToJSON(Value.FData.FDateTimeValue);
|
|
jdtBool:
|
|
if Value.FData.FBoolValue then
|
|
Result := sTrue
|
|
else
|
|
Result := sFalse;
|
|
else
|
|
Result := '';
|
|
end;
|
|
end;
|
|
|
|
class operator TJsonDataValueHelper.Implicit(const Value: Integer): TJsonDataValueHelper;
|
|
begin
|
|
Result.FData.FName := '';
|
|
Result.FData.FNameResolver := nil;
|
|
Result.FData.FIntern := nil;
|
|
{$IFDEF AUTOREFCOUNT}
|
|
if Result.FData.FObj <> nil then
|
|
Result.FData.FObj := nil;
|
|
{$ENDIF AUTOREFCOUNT}
|
|
Result.FData.FTyp := jdtInt;
|
|
Result.FData.FIntValue := Value;
|
|
end;
|
|
|
|
class operator TJsonDataValueHelper.Implicit(const Value: TJsonDataValueHelper): Integer;
|
|
begin
|
|
if Value.FData.FIntern <> nil then
|
|
Result := Value.FData.FIntern.IntValue
|
|
else
|
|
case Value.FData.FTyp of
|
|
jdtString:
|
|
Result := StrToIntDef(Value.FData.FValue, 0);
|
|
jdtInt:
|
|
Result := Value.FData.FIntValue;
|
|
jdtLong:
|
|
Result := Value.FData.FLongValue;
|
|
jdtULong:
|
|
Result := Value.FData.FULongValue;
|
|
jdtFloat:
|
|
Result := Trunc(Value.FData.FFloatValue);
|
|
jdtDateTime, jdtUtcDateTime:
|
|
Result := Trunc(Value.FData.FDateTimeValue);
|
|
jdtBool:
|
|
Result := Ord(Value.FData.FBoolValue);
|
|
else
|
|
Result := 0;
|
|
end;
|
|
end;
|
|
|
|
class operator TJsonDataValueHelper.Implicit(const Value: Int64): TJsonDataValueHelper;
|
|
begin
|
|
Result.FData.FName := '';
|
|
Result.FData.FNameResolver := nil;
|
|
Result.FData.FIntern := nil;
|
|
{$IFDEF AUTOREFCOUNT}
|
|
if Result.FData.FObj <> nil then
|
|
Result.FData.FObj := nil;
|
|
{$ENDIF AUTOREFCOUNT}
|
|
Result.FData.FTyp := jdtLong;
|
|
Result.FData.FLongValue := Value;
|
|
end;
|
|
|
|
class operator TJsonDataValueHelper.Implicit(const Value: TJsonDataValueHelper): Int64;
|
|
begin
|
|
if Value.FData.FIntern <> nil then
|
|
Result := Value.FData.FIntern.LongValue
|
|
else
|
|
case Value.FData.FTyp of
|
|
jdtString:
|
|
Result := StrToInt64Def(Value.FData.FValue, 0);
|
|
jdtInt:
|
|
Result := Value.FData.FIntValue;
|
|
jdtLong:
|
|
Result := Value.FData.FLongValue;
|
|
jdtULong:
|
|
Result := Value.FData.FULongValue;
|
|
jdtFloat:
|
|
Result := Trunc(Value.FData.FFloatValue);
|
|
jdtDateTime, jdtUtcDateTime:
|
|
Result := Trunc(Value.FData.FDateTimeValue);
|
|
jdtBool:
|
|
Result := Ord(Value.FData.FBoolValue);
|
|
else
|
|
Result := 0;
|
|
end;
|
|
end;
|
|
|
|
//class operator TJsonDataValueHelper.Implicit(const Value: UInt64): TJsonDataValueHelper;
|
|
//begin
|
|
// Result.FData.FName := '';
|
|
// Result.FData.FNameResolver := nil;
|
|
// Result.FData.FIntern := nil;
|
|
// {$IFDEF AUTOREFCOUNT}
|
|
// if Result.FData.FObj <> nil then
|
|
// Result.FData.FObj := nil;
|
|
// {$ENDIF AUTOREFCOUNT}
|
|
// Result.FData.FTyp := jdtULong;
|
|
// Result.FData.FULongValue := Value;
|
|
//end;
|
|
//
|
|
//class operator TJsonDataValueHelper.Implicit(const Value: TJsonDataValueHelper): UInt64;
|
|
//begin
|
|
// if Value.FData.FIntern <> nil then
|
|
// Result := Value.FData.FIntern.LongValue
|
|
// else
|
|
// case Value.FData.FTyp of
|
|
// jdtString:
|
|
// Result := StrToInt64Def(Value.FData.FValue, 0);
|
|
// jdtInt:
|
|
// Result := Value.FData.FIntValue;
|
|
// jdtLong:
|
|
// Result := Value.FData.FLongValue;
|
|
// jdtULong:
|
|
// Result := Value.FData.FULongValue;
|
|
// jdtFloat:
|
|
// Result := Trunc(Value.FData.FFloatValue);
|
|
// jdtDateTime, jdtUtcDateTime:
|
|
// Result := Trunc(Value.FData.FDateTimeValue);
|
|
// jdtBool:
|
|
// Result := Ord(Value.FData.FBoolValue);
|
|
// else
|
|
// Result := 0;
|
|
// end;
|
|
//end;
|
|
|
|
class operator TJsonDataValueHelper.Implicit(const Value: Double): TJsonDataValueHelper;
|
|
begin
|
|
Result.FData.FName := '';
|
|
Result.FData.FNameResolver := nil;
|
|
Result.FData.FIntern := nil;
|
|
{$IFDEF AUTOREFCOUNT}
|
|
if Result.FData.FObj <> nil then
|
|
Result.FData.FObj := nil;
|
|
{$ENDIF AUTOREFCOUNT}
|
|
Result.FData.FTyp := jdtFloat;
|
|
Result.FData.FFloatValue := Value;
|
|
end;
|
|
|
|
class operator TJsonDataValueHelper.Implicit(const Value: TJsonDataValueHelper): Double;
|
|
begin
|
|
if Value.FData.FIntern <> nil then
|
|
Result := Value.FData.FIntern.FloatValue
|
|
else
|
|
case Value.FData.FTyp of
|
|
jdtString:
|
|
Result := StrToFloat(Value.FData.FValue, JSONFormatSettings);
|
|
jdtInt:
|
|
Result := Value.FData.FIntValue;
|
|
jdtLong:
|
|
Result := Value.FData.FLongValue;
|
|
jdtULong:
|
|
Result := Value.FData.FULongValue;
|
|
jdtFloat:
|
|
Result := Value.FData.FFloatValue;
|
|
jdtDateTime, jdtUtcDateTime:
|
|
Result := Value.FData.FDateTimeValue;
|
|
jdtBool:
|
|
Result := Ord(Value.FData.FBoolValue);
|
|
else
|
|
Result := 0;
|
|
end;
|
|
end;
|
|
|
|
class operator TJsonDataValueHelper.Implicit(const Value: Extended): TJsonDataValueHelper; // same that double
|
|
begin
|
|
Result.FData.FName := '';
|
|
Result.FData.FNameResolver := nil;
|
|
Result.FData.FIntern := nil;
|
|
{$IFDEF AUTOREFCOUNT}
|
|
if Result.FData.FObj <> nil then
|
|
Result.FData.FObj := nil;
|
|
{$ENDIF AUTOREFCOUNT}
|
|
Result.FData.FTyp := jdtFloat;
|
|
Result.FData.FFloatValue := Value;
|
|
end;
|
|
|
|
class operator TJsonDataValueHelper.Implicit(const Value: TJsonDataValueHelper): Extended; // same that double
|
|
begin
|
|
if Value.FData.FIntern <> nil then
|
|
Result := Value.FData.FIntern.FloatValue
|
|
else
|
|
case Value.FData.FTyp of
|
|
jdtString:
|
|
Result := StrToFloat(Value.FData.FValue, JSONFormatSettings);
|
|
jdtInt:
|
|
Result := Value.FData.FIntValue;
|
|
jdtLong:
|
|
Result := Value.FData.FLongValue;
|
|
jdtULong:
|
|
Result := Value.FData.FULongValue;
|
|
jdtFloat:
|
|
Result := Value.FData.FFloatValue;
|
|
jdtDateTime, jdtUtcDateTime:
|
|
Result := Value.FData.FDateTimeValue;
|
|
jdtBool:
|
|
Result := Ord(Value.FData.FBoolValue);
|
|
else
|
|
Result := 0;
|
|
end;
|
|
end;
|
|
|
|
class operator TJsonDataValueHelper.Implicit(const Value: TDateTime): TJsonDataValueHelper;
|
|
begin
|
|
Result.FData.FName := '';
|
|
Result.FData.FNameResolver := nil;
|
|
Result.FData.FIntern := nil;
|
|
{$IFDEF AUTOREFCOUNT}
|
|
if Result.FData.FObj <> nil then
|
|
Result.FData.FObj := nil;
|
|
{$ENDIF AUTOREFCOUNT}
|
|
Result.FData.FTyp := jdtDateTime;
|
|
Result.FData.FDateTimeValue := Value;
|
|
end;
|
|
|
|
class operator TJsonDataValueHelper.Implicit(const Value: TJsonDataValueHelper): TDateTime;
|
|
begin
|
|
if Value.FData.FIntern <> nil then
|
|
Result := Value.FData.FIntern.DateTimeValue
|
|
else
|
|
case Value.FData.FTyp of
|
|
jdtString:
|
|
Result := TJsonBaseObject.JSONToDateTime(Value.FData.FValue);
|
|
jdtInt:
|
|
Result := Value.FData.FIntValue;
|
|
jdtLong:
|
|
Result := Value.FData.FLongValue;
|
|
jdtULong:
|
|
Result := Value.FData.FULongValue;
|
|
jdtFloat:
|
|
Result := Value.FData.FFloatValue;
|
|
jdtDateTime:
|
|
Result := Value.FData.FDateTimeValue;
|
|
jdtUtcDateTime:
|
|
Result := UtcDateTimeToLocalDateTime(Value.FData.FDateTimeValue);
|
|
jdtBool:
|
|
Result := Ord(Value.FData.FBoolValue);
|
|
else
|
|
Result := 0;
|
|
end;
|
|
end;
|
|
|
|
class operator TJsonDataValueHelper.Implicit(const Value: Boolean): TJsonDataValueHelper;
|
|
begin
|
|
Result.FData.FName := '';
|
|
Result.FData.FNameResolver := nil;
|
|
Result.FData.FIntern := nil;
|
|
{$IFDEF AUTOREFCOUNT}
|
|
if Result.FData.FObj <> nil then
|
|
Result.FData.FObj := nil;
|
|
{$ENDIF AUTOREFCOUNT}
|
|
Result.FData.FTyp := jdtBool;
|
|
Result.FData.FBoolValue := Value;
|
|
end;
|
|
|
|
class operator TJsonDataValueHelper.Implicit(const Value: TJsonDataValueHelper): Boolean;
|
|
begin
|
|
if Value.FData.FIntern <> nil then
|
|
Result := Value.FData.FIntern.BoolValue
|
|
else
|
|
case Value.FData.FTyp of
|
|
jdtString:
|
|
Result := Value.FData.FValue = 'true';
|
|
jdtInt:
|
|
Result := Value.FData.FIntValue <> 0;
|
|
jdtLong:
|
|
Result := Value.FData.FLongValue <> 0;
|
|
jdtULong:
|
|
Result := Value.FData.FULongValue <> 0;
|
|
jdtFloat:
|
|
Result := Value.FData.FFloatValue <> 0;
|
|
jdtDateTime, jdtUtcDateTime:
|
|
Result := Value.FData.FDateTimeValue <> 0;
|
|
jdtBool:
|
|
Result := Value.FData.FBoolValue;
|
|
else
|
|
Result := False;
|
|
end;
|
|
end;
|
|
|
|
class operator TJsonDataValueHelper.Implicit(const Value: TJsonArray): TJsonDataValueHelper;
|
|
begin
|
|
Result.FData.FName := '';
|
|
Result.FData.FNameResolver := nil;
|
|
Result.FData.FIntern := nil;
|
|
{$IFDEF AUTOREFCOUNT}
|
|
if Result.FData.FValue <> '' then
|
|
Result.FData.FValue := '';
|
|
{$ENDIF AUTOREFCOUNT}
|
|
Result.FData.FTyp := jdtArray;
|
|
Result.FData.FObj := Value;
|
|
end;
|
|
|
|
class operator TJsonDataValueHelper.Implicit(const Value: TJsonDataValueHelper): TJsonArray;
|
|
begin
|
|
Value.ResolveName;
|
|
if Value.FData.FIntern <> nil then
|
|
begin
|
|
if Value.FData.FIntern.FTyp = jdtNone then
|
|
Value.FData.FIntern.ArrayValue := TJsonArray.Create;
|
|
Result := Value.FData.FIntern.ArrayValue;
|
|
end
|
|
else if Value.FData.FTyp = jdtArray then
|
|
Result := TJsonArray(Value.FData.FObj)
|
|
else
|
|
Result := nil;
|
|
end;
|
|
|
|
class operator TJsonDataValueHelper.Implicit(const Value: TJsonObject): TJsonDataValueHelper;
|
|
begin
|
|
Result.FData.FName := '';
|
|
Result.FData.FNameResolver := nil;
|
|
Result.FData.FIntern := nil;
|
|
{$IFDEF AUTOREFCOUNT}
|
|
if Result.FData.FValue <> '' then
|
|
Result.FData.FValue := '';
|
|
{$ENDIF AUTOREFCOUNT}
|
|
Result.FData.FTyp := jdtObject;
|
|
Result.FData.FObj := Value;
|
|
end;
|
|
|
|
class operator TJsonDataValueHelper.Implicit(const Value: TJsonDataValueHelper): TJsonObject;
|
|
begin
|
|
Value.ResolveName;
|
|
if Value.FData.FIntern <> nil then
|
|
begin
|
|
if Value.FData.FIntern.FTyp = jdtNone then
|
|
Value.FData.FIntern.ObjectValue := TJsonObject.Create;
|
|
Result := Value.FData.FIntern.ObjectValue;
|
|
end
|
|
else if Value.FData.FTyp = jdtObject then
|
|
Result := TJsonObject(Value.FData.FObj)
|
|
else
|
|
Result := nil;
|
|
end;
|
|
|
|
class operator TJsonDataValueHelper.Implicit(const Value: Pointer): TJsonDataValueHelper;
|
|
begin
|
|
Result.FData.FName := '';
|
|
Result.FData.FNameResolver := nil;
|
|
Result.FData.FIntern := nil;
|
|
{$IFDEF AUTOREFCOUNT}
|
|
if Result.FData.FValue <> '' then
|
|
Result.FData.FValue := '';
|
|
{$ENDIF AUTOREFCOUNT}
|
|
Result.FData.FTyp := jdtObject;
|
|
Result.FData.FObj := nil;
|
|
end;
|
|
|
|
class operator TJsonDataValueHelper.Implicit(const Value: TJsonDataValueHelper): Variant;
|
|
begin
|
|
if Value.FData.FIntern <> nil then
|
|
Result := Value.FData.FIntern.VariantValue
|
|
else
|
|
case Value.FData.FTyp of
|
|
jdtNone:
|
|
Result := Unassigned;
|
|
jdtString:
|
|
Result := Value.FData.FValue;
|
|
jdtInt:
|
|
Result := Value.FData.FIntValue;
|
|
jdtLong:
|
|
Result := Value.FData.FLongValue;
|
|
jdtULong:
|
|
Result := Value.FData.FULongValue;
|
|
jdtFloat:
|
|
Result := Value.FData.FFloatValue;
|
|
jdtDateTime:
|
|
Result := Value.FData.FDateTimeValue;
|
|
jdtUtcDateTime:
|
|
Result := UtcDateTimeToLocalDateTime(Value.FData.FDateTimeValue); // Variant is local time
|
|
jdtBool:
|
|
Result := Value.FData.FBoolValue;
|
|
jdtArray:
|
|
ErrorUnsupportedVariantType(varArray);
|
|
jdtObject:
|
|
if Value.FData.FObj = nil then
|
|
Result := Null
|
|
else
|
|
ErrorUnsupportedVariantType(varObject);
|
|
else
|
|
ErrorUnsupportedVariantType(varAny);
|
|
end;
|
|
end;
|
|
|
|
class operator TJsonDataValueHelper.Implicit(const Value: Variant): TJsonDataValueHelper;
|
|
var
|
|
LTyp: TJsonDataType;
|
|
begin
|
|
Result.FData.FName := '';
|
|
Result.FData.FNameResolver := nil;
|
|
Result.FData.FIntern := nil;
|
|
{$IFDEF AUTOREFCOUNT}
|
|
if Result.FData.FObj <> nil then
|
|
Result.FData.FObj := nil;
|
|
{$ENDIF AUTOREFCOUNT}
|
|
|
|
LTyp := VarTypeToJsonDataType(VarType(Value));
|
|
if LTyp <> jdtNone then
|
|
begin
|
|
Result.FData.FTyp := LTyp;
|
|
case LTyp of
|
|
jdtString:
|
|
string(Result.FData.FValue) := Value;
|
|
jdtInt:
|
|
Result.FData.FIntValue := Value;
|
|
jdtLong:
|
|
Result.FData.FLongValue := Value;
|
|
jdtULong:
|
|
Result.FData.FULongValue := Value;
|
|
jdtFloat:
|
|
Result.FData.FFloatValue := Value;
|
|
jdtDateTime:
|
|
Result.FData.FDateTimeValue := Value;
|
|
jdtBool:
|
|
Result.FData.FBoolValue := Value;
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
function TJsonDataValueHelper.GetValue: string;
|
|
begin
|
|
Result := Self;
|
|
end;
|
|
|
|
procedure TJsonDataValueHelper.SetValue(const Value: string);
|
|
begin
|
|
ResolveName;
|
|
if FData.FIntern <> nil then
|
|
FData.FIntern.Value := Value
|
|
else
|
|
Self := Value;
|
|
end;
|
|
|
|
function TJsonDataValueHelper.GetIntValue: Integer;
|
|
begin
|
|
Result := Self;
|
|
end;
|
|
|
|
procedure TJsonDataValueHelper.SetIntValue(const Value: Integer);
|
|
begin
|
|
ResolveName;
|
|
if FData.FIntern <> nil then
|
|
FData.FIntern.IntValue := Value
|
|
else
|
|
Self := Value;
|
|
end;
|
|
|
|
function TJsonDataValueHelper.GetLongValue: Int64;
|
|
begin
|
|
Result := Self;
|
|
end;
|
|
|
|
procedure TJsonDataValueHelper.SetLongValue(const Value: Int64);
|
|
begin
|
|
ResolveName;
|
|
if FData.FIntern <> nil then
|
|
FData.FIntern.LongValue := Value
|
|
else
|
|
Self := Value;
|
|
end;
|
|
|
|
function TJsonDataValueHelper.GetULongValue: UInt64;
|
|
begin
|
|
// Result := Self;
|
|
// copied from UInt64 implicit operator
|
|
if FData.FIntern <> nil then
|
|
Result := FData.FIntern.LongValue
|
|
else
|
|
case FData.FTyp of
|
|
jdtString:
|
|
Result := StrToInt64Def(FData.FValue, 0);
|
|
jdtInt:
|
|
Result := FData.FIntValue;
|
|
jdtLong:
|
|
Result := FData.FLongValue;
|
|
jdtULong:
|
|
Result := FData.FULongValue;
|
|
jdtFloat:
|
|
Result := Trunc(FData.FFloatValue);
|
|
jdtDateTime, jdtUtcDateTime:
|
|
Result := Trunc(FData.FDateTimeValue);
|
|
jdtBool:
|
|
Result := Ord(FData.FBoolValue);
|
|
else
|
|
Result := 0;
|
|
end;
|
|
end;
|
|
|
|
procedure TJsonDataValueHelper.SetULongValue(const Value: UInt64);
|
|
begin
|
|
ResolveName;
|
|
if FData.FIntern <> nil then
|
|
FData.FIntern.ULongValue := Value
|
|
else
|
|
begin
|
|
//Self := Value;
|
|
// copied from UInt64 implicit operator
|
|
FData.FName := '';
|
|
FData.FNameResolver := nil;
|
|
FData.FIntern := nil;
|
|
{$IFDEF AUTOREFCOUNT}
|
|
if FData.FObj <> nil then
|
|
FData.FObj := nil;
|
|
{$ENDIF AUTOREFCOUNT}
|
|
FData.FTyp := jdtLong;
|
|
FData.FLongValue := Value;
|
|
end;
|
|
end;
|
|
|
|
function TJsonDataValueHelper.GetFloatValue: Double;
|
|
begin
|
|
Result := Self;
|
|
end;
|
|
|
|
procedure TJsonDataValueHelper.SetFloatValue(const Value: Double);
|
|
begin
|
|
ResolveName;
|
|
if FData.FIntern <> nil then
|
|
FData.FIntern.FloatValue := Value
|
|
else
|
|
Self := Value;
|
|
end;
|
|
|
|
function TJsonDataValueHelper.GetDateTimeValue: TDateTime;
|
|
begin
|
|
Result := Self;
|
|
end;
|
|
|
|
procedure TJsonDataValueHelper.SetDateTimeValue(const Value: TDateTime);
|
|
begin
|
|
ResolveName;
|
|
if FData.FIntern <> nil then
|
|
FData.FIntern.DateTimeValue := Value
|
|
else
|
|
Self := Value;
|
|
end;
|
|
|
|
function TJsonDataValueHelper.GetUtcDateTimeValue: TDateTime;
|
|
begin
|
|
if FData.FIntern <> nil then
|
|
Result := FData.FIntern.UtcDateTimeValue
|
|
else
|
|
case FData.FTyp of
|
|
jdtString:
|
|
Result := TJsonBaseObject.JSONToDateTime(FData.FValue, False);
|
|
jdtInt:
|
|
Result := FData.FIntValue;
|
|
jdtLong:
|
|
Result := FData.FLongValue;
|
|
jdtULong:
|
|
Result := FData.FULongValue;
|
|
jdtFloat:
|
|
Result := FData.FFloatValue;
|
|
jdtDateTime:
|
|
Result := LocalDateTimeToUtcDateTime(FData.FDateTimeValue);
|
|
jdtUtcDateTime:
|
|
Result := FData.FDateTimeValue;
|
|
jdtBool:
|
|
Result := Ord(FData.FBoolValue);
|
|
else
|
|
Result := 0;
|
|
end;
|
|
end;
|
|
|
|
procedure TJsonDataValueHelper.SetUtcDateTimeValue(const Value: TDateTime);
|
|
begin
|
|
ResolveName;
|
|
if FData.FIntern <> nil then
|
|
FData.FIntern.UtcDateTimeValue := Value
|
|
else
|
|
begin
|
|
FData.FName := '';
|
|
FData.FNameResolver := nil;
|
|
FData.FIntern := nil;
|
|
{$IFDEF AUTOREFCOUNT}
|
|
if FData.FObj <> nil then
|
|
FData.FObj := nil;
|
|
{$ENDIF AUTOREFCOUNT}
|
|
FData.FTyp := jdtUtcDateTime;
|
|
FData.FDateTimeValue := Value;
|
|
end;
|
|
end;
|
|
|
|
function TJsonDataValueHelper.GetBoolValue: Boolean;
|
|
begin
|
|
Result := Self;
|
|
end;
|
|
|
|
procedure TJsonDataValueHelper.SetBoolValue(const Value: Boolean);
|
|
begin
|
|
ResolveName;
|
|
if FData.FIntern <> nil then
|
|
FData.FIntern.BoolValue := Value
|
|
else
|
|
Self := Value;
|
|
end;
|
|
|
|
function TJsonDataValueHelper.GetArrayValue: TJsonArray;
|
|
begin
|
|
Result := Self;
|
|
end;
|
|
|
|
procedure TJsonDataValueHelper.SetArrayValue(const Value: TJsonArray);
|
|
begin
|
|
ResolveName;
|
|
if FData.FIntern <> nil then
|
|
FData.FIntern.ArrayValue := Value
|
|
else
|
|
Self := Value;
|
|
end;
|
|
|
|
function TJsonDataValueHelper.GetObjectValue: TJsonObject;
|
|
begin
|
|
Result := Self;
|
|
end;
|
|
|
|
procedure TJsonDataValueHelper.SetObjectValue(const Value: TJsonObject);
|
|
begin
|
|
ResolveName;
|
|
if FData.FIntern <> nil then
|
|
FData.FIntern.ObjectValue := Value
|
|
else
|
|
Self := Value;
|
|
end;
|
|
|
|
function TJsonDataValueHelper.GetVariantValue: Variant;
|
|
begin
|
|
Result := Self;
|
|
end;
|
|
|
|
procedure TJsonDataValueHelper.SetVariantValue(const Value: Variant);
|
|
begin
|
|
ResolveName;
|
|
if FData.FIntern <> nil then
|
|
FData.FIntern.VariantValue := Value
|
|
else
|
|
Self := Value;
|
|
end;
|
|
|
|
function TJsonDataValueHelper.GetTyp: TJsonDataType;
|
|
begin
|
|
if FData.FIntern <> nil then
|
|
Result := FData.FIntern.Typ
|
|
else
|
|
Result := FData.FTyp;
|
|
end;
|
|
|
|
function TJsonDataValueHelper.IsNull: Boolean;
|
|
begin
|
|
if FData.FIntern <> nil then
|
|
Result := FData.FIntern.IsNull
|
|
else
|
|
begin
|
|
case FData.FTyp of
|
|
jdtNone:
|
|
Result := True;
|
|
jdtObject:
|
|
Result := FData.FObj = nil;
|
|
else
|
|
Result := False;
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
class procedure TJsonDataValueHelper.SetInternValue(Item: PJsonDataValue;
|
|
const Value: TJsonDataValueHelper);
|
|
begin
|
|
Value.ResolveName;
|
|
if Value.FData.FIntern <> nil then
|
|
begin
|
|
Item.Clear;
|
|
TJsonBaseObject.InternInitAndAssignItem(Item, Value.FData.FIntern); // clones arrays and objects
|
|
end
|
|
else
|
|
begin
|
|
case Value.FData.FTyp of
|
|
jdtString:
|
|
Item.Value := Value.FData.FValue;
|
|
jdtInt:
|
|
Item.IntValue := Value.FData.FIntValue;
|
|
jdtLong:
|
|
Item.LongValue := Value.FData.FLongValue;
|
|
jdtULong:
|
|
Item.ULongValue := Value.FData.FULongValue;
|
|
jdtFloat:
|
|
Item.FloatValue := Value.FData.FFloatValue;
|
|
jdtDateTime, jdtUtcDateTime:
|
|
Item.DateTimeValue := Value.FData.FDateTimeValue;
|
|
jdtBool:
|
|
Item.BoolValue := Value.FData.FBoolValue;
|
|
jdtArray:
|
|
Item.ArrayValue := TJsonArray(Value.FData.FObj);
|
|
jdtObject:
|
|
Item.ObjectValue := TJsonObject(Value.FData.FObj);
|
|
else
|
|
Item.Clear;
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
function TJsonDataValueHelper.GetArrayItem(Index: Integer): TJsonDataValueHelper;
|
|
begin
|
|
Result := ArrayValue.Values[Index];
|
|
end;
|
|
|
|
function TJsonDataValueHelper.GetArrayCount: Integer;
|
|
begin
|
|
Result := ArrayValue.Count;
|
|
end;
|
|
|
|
procedure TJsonDataValueHelper.ResolveName;
|
|
begin
|
|
if (FData.FIntern = nil) and (FData.FNameResolver <> nil) then
|
|
begin
|
|
FData.FIntern := FData.FNameResolver.RequireItem(FData.FName);
|
|
FData.FNameResolver := nil;
|
|
FData.FName := '';
|
|
end;
|
|
end;
|
|
|
|
function TJsonDataValueHelper.GetObjectString(const Name: string): string;
|
|
begin
|
|
Result := ObjectValue.S[Name];
|
|
end;
|
|
|
|
function TJsonDataValueHelper.GetObjectInt(const Name: string): Integer;
|
|
begin
|
|
Result := ObjectValue.I[Name];
|
|
end;
|
|
|
|
function TJsonDataValueHelper.GetObjectLong(const Name: string): Int64;
|
|
begin
|
|
Result := ObjectValue.L[Name];
|
|
end;
|
|
|
|
function TJsonDataValueHelper.GetObjectULong(const Name: string): UInt64;
|
|
begin
|
|
Result := ObjectValue.U[Name];
|
|
end;
|
|
|
|
function TJsonDataValueHelper.GetObjectFloat(const Name: string): Double;
|
|
begin
|
|
Result := ObjectValue.F[Name];
|
|
end;
|
|
|
|
function TJsonDataValueHelper.GetObjectDateTime(const Name: string): TDateTime;
|
|
begin
|
|
Result := ObjectValue.D[Name];
|
|
end;
|
|
|
|
function TJsonDataValueHelper.GetObjectUtcDateTime(const Name: string): TDateTime;
|
|
begin
|
|
Result := ObjectValue.DUtc[Name];
|
|
end;
|
|
|
|
function TJsonDataValueHelper.GetObjectBool(const Name: string): Boolean;
|
|
begin
|
|
Result := ObjectValue.B[Name];
|
|
end;
|
|
|
|
function TJsonDataValueHelper.GetArray(const Name: string): TJsonArray;
|
|
begin
|
|
Result := ObjectValue.A[Name];
|
|
end;
|
|
|
|
{$IFDEF BCB}
|
|
function TJsonDataValueHelper.GetObj(const Name: string): TJsonDataValueHelper;
|
|
begin
|
|
Result := ObjectValue.Values[Name];
|
|
end;
|
|
{$ELSE}
|
|
function TJsonDataValueHelper.GetObject(const Name: string): TJsonDataValueHelper;
|
|
begin
|
|
Result := ObjectValue.Values[Name];
|
|
end;
|
|
{$ENDIF BCB}
|
|
|
|
function TJsonDataValueHelper.GetObjectVariant(const Name: string): Variant;
|
|
begin
|
|
Result := ObjectValue.Values[Name];
|
|
end;
|
|
|
|
procedure TJsonDataValueHelper.SetObjectString(const Name, Value: string);
|
|
begin
|
|
ObjectValue.S[Name] := Value;
|
|
end;
|
|
|
|
procedure TJsonDataValueHelper.SetObjectInt(const Name: string; const Value: Integer);
|
|
begin
|
|
ObjectValue.I[Name] := Value;
|
|
end;
|
|
|
|
procedure TJsonDataValueHelper.SetObjectLong(const Name: string; const Value: Int64);
|
|
begin
|
|
ObjectValue.L[Name] := Value;
|
|
end;
|
|
|
|
procedure TJsonDataValueHelper.SetObjectULong(const Name: string; const Value: UInt64);
|
|
begin
|
|
ObjectValue.U[Name] := Value;
|
|
end;
|
|
|
|
procedure TJsonDataValueHelper.SetObjectFloat(const Name: string; const Value: Double);
|
|
begin
|
|
ObjectValue.F[Name] := Value;
|
|
end;
|
|
|
|
procedure TJsonDataValueHelper.SetObjectDateTime(const Name: string; const Value: TDateTime);
|
|
begin
|
|
ObjectValue.D[Name] := Value;
|
|
end;
|
|
|
|
procedure TJsonDataValueHelper.SetObjectUtcDateTime(const Name: string; const Value: TDateTime);
|
|
begin
|
|
ObjectValue.DUtc[Name] := Value;
|
|
end;
|
|
|
|
procedure TJsonDataValueHelper.SetObjectBool(const Name: string; const Value: Boolean);
|
|
begin
|
|
ObjectValue.B[Name] := Value;
|
|
end;
|
|
|
|
procedure TJsonDataValueHelper.SetArray(const Name: string; const Value: TJsonArray);
|
|
begin
|
|
ObjectValue.A[Name] := Value;
|
|
end;
|
|
|
|
procedure TJsonDataValueHelper.SetObject(const Name: string; const Value: TJsonDataValueHelper);
|
|
begin
|
|
ObjectValue.Values[Name] := Value;
|
|
end;
|
|
|
|
procedure TJsonDataValueHelper.SetObjectVariant(const Name: string; const Value: Variant);
|
|
begin
|
|
ObjectValue.Values[Name] := Value;
|
|
end;
|
|
|
|
function TJsonDataValueHelper.GetObjectPath(const Name: string): TJsonDataValueHelper;
|
|
begin
|
|
Result := ObjectValue.Path[Name];
|
|
end;
|
|
|
|
procedure TJsonDataValueHelper.SetObjectPath(const Name: string; const Value: TJsonDataValueHelper);
|
|
begin
|
|
ObjectValue.Path[Name] := Value;
|
|
end;
|
|
|
|
{ TEncodingStrictAccess }
|
|
|
|
function TEncodingStrictAccess.GetByteCountEx(Chars: PChar; CharCount: Integer): Integer;
|
|
begin
|
|
Result := GetByteCount(Chars, CharCount);
|
|
end;
|
|
|
|
function TEncodingStrictAccess.GetBytesEx(Chars: PChar; CharCount: Integer; Bytes: PByte; ByteCount: Integer): Integer;
|
|
begin
|
|
Result := GetBytes(Chars, CharCount, Bytes, ByteCount);
|
|
end;
|
|
|
|
function TEncodingStrictAccess.GetCharCountEx(Bytes: PByte; ByteCount: Integer): Integer;
|
|
begin
|
|
Result := GetCharCount(Bytes, ByteCount);
|
|
end;
|
|
|
|
function TEncodingStrictAccess.GetCharsEx(Bytes: PByte; ByteCount: Integer; Chars: PChar; CharCount: Integer): Integer;
|
|
begin
|
|
Result := GetChars(Bytes, ByteCount, Chars, CharCount);
|
|
end;
|
|
|
|
{ TJsonOutputWriter.TJsonStringBuilder }
|
|
|
|
procedure TJsonOutputWriter.TJsonStringBuilder.Init;
|
|
begin
|
|
FLen := 0;
|
|
FCapacity := 0;
|
|
FData := nil;
|
|
end;
|
|
|
|
procedure TJsonOutputWriter.TJsonStringBuilder.Done;
|
|
var
|
|
P: PStrRec;
|
|
begin
|
|
if FData <> nil then
|
|
begin
|
|
P := PStrRec(PByte(FData) - SizeOf(TStrRec));
|
|
FreeMem(P);
|
|
end;
|
|
end;
|
|
|
|
procedure TJsonOutputWriter.TJsonStringBuilder.DoneConvertToString(var S: string);
|
|
var
|
|
StrP: PStrRec;
|
|
P: PChar;
|
|
begin
|
|
S := '';
|
|
if FData <> nil then
|
|
begin
|
|
// Release the unused memory and terminate the string with a #0. The result is that we have a
|
|
// native string that is exactly the same as if it was allocated by System.@NewUnicodeString.
|
|
StrP := PStrRec(PByte(FData) - SizeOf(TStrRec));
|
|
if Len = 0 then
|
|
FreeMem(StrP)
|
|
else
|
|
begin
|
|
if Len <> FCapacity then
|
|
ReallocMem(Pointer(StrP), SizeOf(TStrRec) + (Len + 1) * SizeOf(Char)); // allocate +1 char for the #0
|
|
// Set the string's length
|
|
StrP.Length := Len;
|
|
P := PChar(PByte(StrP) + SizeOf(TStrRec));
|
|
P[Len] := #0;
|
|
Pointer(S) := P; // keep the RefCnt=1
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
function TJsonOutputWriter.TJsonStringBuilder.FlushToBytes(var Bytes: PByte; var Size: NativeInt; Encoding: TEncoding): NativeInt;
|
|
begin
|
|
if FLen > 0 then
|
|
begin
|
|
// Use the "strict protected" methods that use PChar instead of TCharArray what allows us to
|
|
// use FData directly without converting it to a dynamic TCharArray (and skipping the sanity
|
|
// checks)
|
|
Result := TEncodingStrictAccess(Encoding).GetByteCountEx(FData, FLen);
|
|
if Result > 0 then
|
|
begin
|
|
if Result > Size then
|
|
begin
|
|
Size := (Result + 4095) and not 4095;
|
|
ReallocMem(Bytes, Size);
|
|
end;
|
|
TEncodingStrictAccess(Encoding).GetBytesEx(FData, FLen, Bytes, Result);
|
|
end;
|
|
FLen := 0; // "clear" the buffer but don't release the memory
|
|
end
|
|
else
|
|
Result := 0;
|
|
end;
|
|
|
|
procedure TJsonOutputWriter.TJsonStringBuilder.FlushToMemoryStream(Stream: TMemoryStream; Encoding: TEncoding);
|
|
var
|
|
L: Integer;
|
|
Idx, NewSize: NativeInt;
|
|
begin
|
|
if FLen > 0 then
|
|
begin
|
|
// Use the "strict protected" methods that use PChar instead of TCharArray what allows us to
|
|
// use FData directly without converting it to a dynamic TCharArray (and skipping the sanity
|
|
// checks)
|
|
L := TEncodingStrictAccess(Encoding).GetByteCountEx(FData, FLen);
|
|
if L > 0 then
|
|
begin
|
|
// Directly convert into the TMemoryStream.Memory buffer
|
|
Idx := Stream.Position;
|
|
NewSize := Idx + L;
|
|
if NewSize > TMemoryStreamAccess(Stream).Capacity then
|
|
TMemoryStreamAccess(Stream).Capacity := NewSize;
|
|
|
|
TEncodingStrictAccess(Encoding).GetBytesEx(FData, FLen, @PByte(Stream.Memory)[Idx], L);
|
|
TMemoryStreamAccess(Stream).SetPointer(Stream.Memory, NewSize);
|
|
Stream.Position := NewSize;
|
|
end;
|
|
end;
|
|
FLen := 0; // "clear" the buffer but don't release the memory
|
|
end;
|
|
|
|
procedure TJsonOutputWriter.TJsonStringBuilder.Grow(MinLen: Integer);
|
|
var
|
|
C: Integer;
|
|
StrP: PStrRec;
|
|
begin
|
|
C := FCapacity;
|
|
C := C * 2;
|
|
if MinLen < 256 then // begin with a 256 char buffer
|
|
MinLen := 256;
|
|
{$IFNDEF CPUX64}
|
|
if C > 256 * 1024 * 1024 then
|
|
begin
|
|
// Memory fragmentation can become a problem, so allocate only the amount of memory that
|
|
// is needed
|
|
C := FCapacity;
|
|
C := C + (C div 3);
|
|
if C < MinLen then
|
|
C := MinLen;
|
|
end
|
|
else
|
|
{$ENDIF ~CPUX64}
|
|
if C < MinLen then
|
|
C := MinLen;
|
|
FCapacity := C;
|
|
if FData <> nil then
|
|
begin
|
|
StrP := Pointer(PByte(FData) - SizeOf(TStrRec));
|
|
ReallocMem(StrP, SizeOf(TStrRec) + (C + 1) * SizeOf(Char)); // allocate +1 char for the #0 that DoneToString() adds
|
|
end
|
|
else
|
|
begin
|
|
// Build the buffer with the StrRec header so it can be easily mapped to a "native string" in
|
|
// DoneToString.
|
|
GetMem(Pointer(StrP), SizeOf(TStrRec) + (C + 1) * SizeOf(Char)); // allocate +1 char for the #0 that DoneToString() adds
|
|
StrP.CodePage := Word(DefaultUnicodeCodePage);
|
|
StrP.ElemSize := SizeOf(Char);
|
|
StrP.RefCnt := 1;
|
|
StrP.Length := 0; // DoneToString set the correct value
|
|
end;
|
|
FData := PChar(PByte(StrP) + SizeOf(TStrRec));
|
|
end;
|
|
|
|
function TJsonOutputWriter.TJsonStringBuilder.Append(const S: string): PJsonStringBuilder;
|
|
var
|
|
L, LLen: Integer;
|
|
begin
|
|
LLen := FLen;
|
|
L := Length(S);
|
|
if L > 0 then
|
|
begin
|
|
if LLen + L >= FCapacity then
|
|
Grow(LLen + L);
|
|
case L of
|
|
1: FData[LLen] := PChar(Pointer(S))^;
|
|
2: PLongWord(@FData[LLen])^ := PLongWord(Pointer(S))^;
|
|
else
|
|
Move(PChar(Pointer(S))[0], FData[LLen], L * SizeOf(Char));
|
|
end;
|
|
FLen := LLen + L;
|
|
end;
|
|
Result := @Self;
|
|
end;
|
|
|
|
procedure TJsonOutputWriter.TJsonStringBuilder.Append(P: PChar; Len: Integer);
|
|
var
|
|
LLen: Integer;
|
|
begin
|
|
LLen := FLen;
|
|
if Len > 0 then
|
|
begin
|
|
if LLen + Len >= FCapacity then
|
|
Grow(LLen + Len);
|
|
case Len of
|
|
1: FData[LLen] := P^;
|
|
2: PLongWord(@FData[LLen])^ := PLongWord(P)^;
|
|
else
|
|
Move(P[0], FData[LLen], Len * SizeOf(Char));
|
|
end;
|
|
FLen := LLen + Len;
|
|
end;
|
|
end;
|
|
|
|
function TJsonOutputWriter.TJsonStringBuilder.Append2(const S1: string; S2: PChar; S2Len: Integer): PJsonStringBuilder;
|
|
var
|
|
L, S1Len, LLen: Integer;
|
|
begin
|
|
LLen := FLen;
|
|
S1Len := Length(S1);
|
|
L := S1Len + S2Len;
|
|
if LLen + L >= FCapacity then
|
|
Grow(LLen + L);
|
|
|
|
case S1Len of
|
|
0: ;
|
|
1: FData[LLen] := PChar(Pointer(S1))^;
|
|
2: PLongWord(@FData[LLen])^ := PLongWord(Pointer(S1))^;
|
|
else
|
|
Move(PChar(Pointer(S1))[0], FData[LLen], S1Len * SizeOf(Char));
|
|
end;
|
|
Inc(LLen, S1Len);
|
|
|
|
case S2Len of
|
|
0: ;
|
|
1: FData[LLen] := S2^;
|
|
2: PLongWord(@FData[LLen])^ := PLongWord(Pointer(S2))^;
|
|
else
|
|
Move(S2[0], FData[LLen], S2Len * SizeOf(Char));
|
|
end;
|
|
FLen := LLen + S2Len;
|
|
Result := @Self;
|
|
end;
|
|
|
|
procedure TJsonOutputWriter.TJsonStringBuilder.Append2(Ch1: Char; Ch2: Char);
|
|
var
|
|
LLen: Integer;
|
|
begin
|
|
LLen := FLen;
|
|
if LLen + 2 >= FCapacity then
|
|
Grow(2);
|
|
FData[LLen] := Ch1;
|
|
FData[LLen + 1] := Ch2;
|
|
FLen := LLen + 2;
|
|
end;
|
|
|
|
|
|
procedure TJsonOutputWriter.TJsonStringBuilder.Append3(Ch1: Char; const S2, S3: string);
|
|
var
|
|
L, S2Len, S3Len, LLen: Integer;
|
|
begin
|
|
LLen := FLen;
|
|
S2Len := Length(S2);
|
|
S3Len := Length(S3);
|
|
L := 1 + S2Len + S3Len;
|
|
if LLen + L >= FCapacity then
|
|
Grow(LLen + L);
|
|
|
|
FData[LLen] := Ch1;
|
|
Inc(LLen);
|
|
|
|
case S2Len of
|
|
0: ;
|
|
1: FData[LLen] := PChar(Pointer(S2))^;
|
|
2: PLongWord(@FData[LLen])^ := PLongWord(Pointer(S2))^;
|
|
else
|
|
Move(PChar(Pointer(S2))[0], FData[LLen], S2Len * SizeOf(Char));
|
|
end;
|
|
Inc(LLen, S2Len);
|
|
|
|
case S3Len of
|
|
1: FData[LLen] := PChar(Pointer(S3))^;
|
|
2: PLongWord(@FData[LLen])^ := PLongWord(Pointer(S3))^;
|
|
else
|
|
Move(PChar(Pointer(S3))[0], FData[LLen], S3Len * SizeOf(Char));
|
|
end;
|
|
FLen := LLen + S3Len;
|
|
end;
|
|
|
|
procedure TJsonOutputWriter.TJsonStringBuilder.Append3(Ch1: Char; const P2: PChar; P2Len: Integer; Ch3: Char);
|
|
var
|
|
L, LLen: Integer;
|
|
begin
|
|
LLen := FLen;
|
|
L := 2 + P2Len;
|
|
if LLen + L >= FCapacity then
|
|
Grow(LLen + L);
|
|
|
|
FData[LLen] := Ch1;
|
|
Inc(LLen);
|
|
|
|
case P2Len of
|
|
0: ;
|
|
1: FData[LLen] := P2^;
|
|
2: PLongWord(@FData[LLen])^ := PLongWord(P2)^;
|
|
else
|
|
Move(P2[0], FData[LLen], P2Len * SizeOf(Char));
|
|
end;
|
|
Inc(LLen, P2Len);
|
|
|
|
FData[LLen] := Ch1;
|
|
FLen := LLen + 1;
|
|
end;
|
|
|
|
procedure TJsonOutputWriter.TJsonStringBuilder.Append3(Ch1: Char; const S2: string; Ch3: Char);
|
|
begin
|
|
Append3(Ch1, PChar(Pointer(S2)), Length(S2), Ch3);
|
|
end;
|
|
|
|
procedure TJsonOutputWriter.TJsonStringBuilder.FlushToStringBuffer(var Buffer: TJsonStringBuilder);
|
|
begin
|
|
Buffer.Append(FData, FLen);
|
|
FLen := 0;
|
|
end;
|
|
|
|
procedure TJsonOutputWriter.TJsonStringBuilder.FlushToString(var S: string);
|
|
begin
|
|
SetString(S, FData, FLen);
|
|
FLen := 0;
|
|
end;
|
|
|
|
{ TJsonUTF8StringStream }
|
|
|
|
{$IFDEF SUPPORTS_UTF8STRING}
|
|
constructor TJsonUTF8StringStream.Create;
|
|
begin
|
|
inherited Create;
|
|
SetPointer(nil, 0);
|
|
end;
|
|
|
|
function TJsonUTF8StringStream.Realloc(var NewCapacity: Longint): Pointer;
|
|
var
|
|
L: Longint;
|
|
begin
|
|
if NewCapacity <> Capacity then
|
|
begin
|
|
if NewCapacity = 0 then
|
|
FDataString := ''
|
|
else
|
|
begin
|
|
L := Length(FDataString) * 2;
|
|
{$IFNDEF CPUX64}
|
|
if L > 256 * 1024 * 1024 then
|
|
begin
|
|
// Memory fragmentation can become a problem, so allocate only the amount of memory that
|
|
// is needed
|
|
L := NewCapacity;
|
|
end
|
|
else
|
|
{$ENDIF ~CPUX64}
|
|
if L < NewCapacity then
|
|
L := NewCapacity;
|
|
NewCapacity := L;
|
|
SetLength(FDataString, L);
|
|
end;
|
|
end;
|
|
Result := Pointer(FDataString);
|
|
end;
|
|
{$ENDIF SUPPORTS_UTF8STRING}
|
|
|
|
{ TJsonBytesStream }
|
|
|
|
constructor TJsonBytesStream.Create;
|
|
begin
|
|
inherited Create;
|
|
SetPointer(nil, 0);
|
|
end;
|
|
|
|
function TJsonBytesStream.Realloc(var NewCapacity: Longint): Pointer;
|
|
var
|
|
L: Longint;
|
|
begin
|
|
if NewCapacity <> Capacity then
|
|
begin
|
|
if NewCapacity = 0 then
|
|
FBytes := nil
|
|
else
|
|
begin
|
|
L := Length(FBytes) * 2;
|
|
{$IFNDEF CPUX64}
|
|
if L > 256 * 1024 * 1024 then
|
|
begin
|
|
// Memory fragmentation can become a problem, so allocate only the amount of memory that
|
|
// is needed
|
|
L := NewCapacity;
|
|
end
|
|
else
|
|
{$ENDIF ~CPUX64}
|
|
if L < NewCapacity then
|
|
L := NewCapacity;
|
|
NewCapacity := L;
|
|
ByteArraySetLengthUninit(FBytes, L);
|
|
end;
|
|
end;
|
|
Result := Pointer(FBytes);
|
|
end;
|
|
|
|
initialization
|
|
{$IFDEF USE_NAME_STRING_LITERAL}
|
|
InitializeJsonMemInfo;
|
|
{$ENDIF USE_NAME_STRING_LITERAL}
|
|
{$IFDEF MSWINDOWS}
|
|
{$IFDEF SUPPORT_WINDOWS2000}
|
|
TzSpecificLocalTimeToSystemTime := GetProcAddress(GetModuleHandle(kernel32), PAnsiChar('TzSpecificLocalTimeToSystemTime'));
|
|
if not Assigned(TzSpecificLocalTimeToSystemTime) then
|
|
TzSpecificLocalTimeToSystemTime := TzSpecificLocalTimeToSystemTimeWin2000;
|
|
{$ENDIF SUPPORT_WINDOWS2000}
|
|
{$ENDIF MSWINDOWS}
|
|
// Make sTrue and sFalse a mutable string (RefCount<>-1) so that UStrAsg doesn't always
|
|
// create a new string.
|
|
UniqueString(sTrue);
|
|
UniqueString(sFalse);
|
|
JSONFormatSettings.DecimalSeparator := '.';
|
|
|
|
end.
|