mirror of
https://gitlab.com/freepascal.org/fpc/source.git
synced 2025-04-28 22:43:39 +02:00
985 lines
25 KiB
PHP
985 lines
25 KiB
PHP
{
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This file is part of the Free Pascal run time library.
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Copyright (c) 2001 by the Free Pascal development team
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This include file contains the implementation for variants
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support in FPC as far as it is part of the system unit
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See the file COPYING.FPC, included in this distribution,
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for details about the copyright.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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**********************************************************************}
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var
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variantmanager : tvariantmanager;
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procedure printmissingvariantunit;
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begin
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writeln(stderr);
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writeln(stderr,'Program needs probably the variants unit.');
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writeln(stderr,'Include the variants unit in your uses statements');
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writeln(stderr,'as one of the first units.');
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writeln(stderr);
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end;
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procedure invalidvariantop;
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begin
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printmissingvariantunit;
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HandleErrorFrame(221,get_frame);
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end;
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procedure invalidvariantopnovariants;
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begin
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printmissingvariantunit;
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HandleErrorFrame(221,get_frame);
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end;
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procedure vardisperror;
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begin
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printmissingvariantunit;
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HandleErrorFrame(222,get_frame);
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end;
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{ ---------------------------------------------------------------------
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Compiler helper routines.
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---------------------------------------------------------------------}
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procedure varclear(var v : tvardata);
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begin
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if not(v.vtype in [varempty,varerror,varnull]) then
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invalidvariantop;
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end;
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procedure variant_init(var v : tvardata);[Public,Alias:'FPC_VARIANT_INIT'];
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begin
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{ calling the variant manager here is a problem because the static/global variants
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are initialized while the variant manager isn't assigned }
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fillchar(v,sizeof(variant),0);
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end;
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procedure variant_clear(var v : tvardata);[Public,Alias:'FPC_VARIANT_CLEAR'];
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begin
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if assigned(VarClearProc) then
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VarClearProc(v);
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end;
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procedure variant_addref(var v : tvardata);[Public,Alias:'FPC_VARIANT_ADDREF'];
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begin
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if assigned(VarAddRefProc) then
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VarAddRefProc(v);
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end;
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{ using pointers as argument here makes life for the compiler easier }
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procedure fpc_variant_copy(d,s : pointer);compilerproc;
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begin
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if assigned(VarCopyProc) then
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VarCopyProc(tvardata(d^),tvardata(s^));
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end;
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Procedure fpc_write_text_variant(Len : Longint;var f : Text;const v : variant); iocheck; [Public,Alias:'FPC_WRITE_TEXT_VARIANT']; compilerproc;
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begin
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if (InOutRes<>0) then
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exit;
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case TextRec(f).mode of
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{ fmAppend gets changed to fmOutPut in do_open (JM) }
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fmOutput:
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if len=-1 then
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variantmanager.write0variant(f,v)
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else
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variantmanager.writevariant(f,v,len);
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fmInput:
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InOutRes:=105
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else InOutRes:=103;
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end;
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end;
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procedure fpc_vararray_get(var d : variant;const s : variant;indices : psizeint;len : sizeint);compilerproc;
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begin
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d:=variantmanager.vararrayget(s,len,indices);
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end;
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procedure fpc_vararray_put(var d : variant;const s : variant;indices : psizeint;len : sizeint);compilerproc;
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begin
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variantmanager.vararrayput(d,s,len,indices);
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end;
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function fpc_variant_to_dynarray(const v : variant;typeinfo : pointer) : pointer;compilerproc;
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begin
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result:=nil;
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variantmanager.vartodynarray(result,v,typeinfo);
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end;
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function fpc_dynarray_to_variant(dynarr : pointer;typeinfo : pointer) : variant;compilerproc;
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begin
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variantmanager.varfromdynarray(result,dynarr,typeinfo);
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end;
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function fpc_variant_to_interface(const v : variant) : iinterface;compilerproc;
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begin
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variantmanager.vartointf(result,v);
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end;
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function fpc_interface_to_variant(const i : iinterface) : variant;compilerproc;
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begin
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variantmanager.varfromintf(result,i);
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end;
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{ ---------------------------------------------------------------------
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Overloaded operators.
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---------------------------------------------------------------------}
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{ Integer }
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operator :=(const source : byte) dest : variant;{$ifdef SYSTEMINLINE}inline;{$endif}
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begin
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Variantmanager.varfromInt(Dest,Source,1);
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end;
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operator :=(const source : shortint) dest : variant;{$ifdef SYSTEMINLINE}inline;{$endif}
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begin
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Variantmanager.varfromInt(Dest,Source,-1);
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end;
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operator :=(const source : word) dest : variant;{$ifdef SYSTEMINLINE}inline;{$endif}
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begin
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Variantmanager.varfromInt(Dest,Source,2);
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end;
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operator :=(const source : smallint) dest : variant;{$ifdef SYSTEMINLINE}inline;{$endif}
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begin
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Variantmanager.varfromInt(Dest,Source,-2);
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end;
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operator :=(const source : dword) dest : variant;{$ifdef SYSTEMINLINE}inline;{$endif}
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begin
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Variantmanager.varfromInt(Dest,Source,4);
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end;
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operator :=(const source : longint) dest : variant;{$ifdef SYSTEMINLINE}inline;{$endif}
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begin
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Variantmanager.varfromInt(Dest,Source,-4);
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end;
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operator :=(const source : qword) dest : variant;{$ifdef SYSTEMINLINE}inline;{$endif}
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begin
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Variantmanager.varfromWord64(Dest,Source);
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end;
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operator :=(const source : int64) dest : variant;{$ifdef SYSTEMINLINE}inline;{$endif}
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begin
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Variantmanager.varfromInt64(Dest,Source);
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end;
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{ Boolean }
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operator :=(const source : boolean) dest : variant;{$ifdef SYSTEMINLINE}inline;{$endif}
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begin
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Variantmanager.varfromBool(Dest,Source);
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end;
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operator :=(const source : wordbool) dest : variant;{$ifdef SYSTEMINLINE}inline;{$endif}
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begin
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Variantmanager.varfromBool(Dest,Boolean(Source));
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end;
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operator :=(const source : longbool) dest : variant;{$ifdef SYSTEMINLINE}inline;{$endif}
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begin
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Variantmanager.varfromBool(Dest,Boolean(Source));
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end;
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{ Chars }
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operator :=(const source : char) dest : variant;{$ifdef SYSTEMINLINE}inline;{$endif}
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begin
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VariantManager.VarFromPStr(Dest,Source);
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end;
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operator :=(const source : widechar) dest : variant;{$ifdef SYSTEMINLINE}inline;{$endif}
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begin
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VariantManager.VarFromWStr(Dest,Source);
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end;
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{ Strings }
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operator :=(const source : shortstring) dest : variant;{$ifdef SYSTEMINLINE}inline;{$endif}
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begin
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VariantManager.VarFromPStr(Dest,Source);
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end;
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operator :=(const source : ansistring) dest : variant;{$ifdef SYSTEMINLINE}inline;{$endif}
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begin
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VariantManager.VarFromLStr(Dest,Source);
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end;
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operator :=(const source : widestring) dest : variant;{$ifdef SYSTEMINLINE}inline;{$endif}
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begin
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VariantManager.VarFromWStr(Dest,Source);
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end;
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{ Floats }
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{$ifdef SUPPORT_SINGLE}
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operator :=(const source : single) dest : variant;{$ifdef SYSTEMINLINE}inline;{$endif}
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begin
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VariantManager.VarFromReal(Dest,Source);
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end;
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{$endif SUPPORT_SINGLE}
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{$ifdef SUPPORT_DOUBLE}
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operator :=(const source : double) dest : variant;{$ifdef SYSTEMINLINE}inline;{$endif}
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begin
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VariantManager.VarFromReal(Dest,Source);
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end;
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{$endif SUPPORT_DOUBLE}
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{$ifdef SUPPORT_EXTENDED}
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operator :=(const source : extended) dest : variant;{$ifdef SYSTEMINLINE}inline;{$endif}
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begin
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VariantManager.VarFromReal(Dest,Source);
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end;
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{$endif SUPPORT_EXTENDED}
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{$ifdef SUPPORT_COMP}
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Operator :=(const source : comp) dest : variant;{$ifdef SYSTEMINLINE}inline;{$endif}
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begin
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VariantManager.VarFromReal(Dest,Source);
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end;
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{$endif SUPPORT_COMP}
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{ Misc. }
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operator :=(const source : currency) dest : variant;{$ifdef SYSTEMINLINE}inline;{$endif}
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begin
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VariantManager.VarFromCurr(Dest,Source);
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end;
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operator :=(const source : tdatetime) dest : variant;{$ifdef SYSTEMINLINE}inline;{$endif}
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begin
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VariantManager.VarFromTDateTime(Dest,Source);
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end;
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operator :=(const source : terror) dest : variant;{$ifdef SYSTEMINLINE}inline;{$endif}
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begin
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Variantmanager.varfromInt(Dest,Source,-sizeof(terror));
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end;
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{**********************************************************************
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from Variant assignments
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**********************************************************************}
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{ Integer }
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operator :=(const source : variant) dest : byte;{$ifdef SYSTEMINLINE}inline;{$endif}
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begin
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dest:=variantmanager.vartoint(source);
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end;
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operator :=(const source : variant) dest : shortint;{$ifdef SYSTEMINLINE}inline;{$endif}
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begin
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dest:=variantmanager.vartoint(source);
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end;
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operator :=(const source : variant) dest : word;{$ifdef SYSTEMINLINE}inline;{$endif}
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begin
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dest:=variantmanager.vartoint(source);
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end;
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operator :=(const source : variant) dest : smallint;{$ifdef SYSTEMINLINE}inline;{$endif}
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begin
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dest:=variantmanager.vartoint(source);
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end;
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operator :=(const source : variant) dest : dword;{$ifdef SYSTEMINLINE}inline;{$endif}
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begin
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dest:=variantmanager.vartoint(source);
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end;
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operator :=(const source : variant) dest : longint;{$ifdef SYSTEMINLINE}inline;{$endif}
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begin
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dest:=variantmanager.vartoint(source);
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end;
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operator :=(const source : variant) dest : qword;{$ifdef SYSTEMINLINE}inline;{$endif}
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begin
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dest:=variantmanager.vartoword64(source);
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end;
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operator :=(const source : variant) dest : int64;{$ifdef SYSTEMINLINE}inline;{$endif}
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begin
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dest:=variantmanager.vartoint64(source);
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end;
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{ Boolean }
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operator :=(const source : variant) dest : boolean;{$ifdef SYSTEMINLINE}inline;{$endif}
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begin
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dest:=variantmanager.vartobool(source);
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end;
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operator :=(const source : variant) dest : wordbool;{$ifdef SYSTEMINLINE}inline;{$endif}
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begin
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dest:=variantmanager.vartobool(source);
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end;
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operator :=(const source : variant) dest : longbool;{$ifdef SYSTEMINLINE}inline;{$endif}
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begin
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dest:=variantmanager.vartobool(source);
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end;
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{ Chars }
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operator :=(const source : variant) dest : char;{$ifdef SYSTEMINLINE}inline;{$endif}
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Var
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S : String;
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begin
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VariantManager.VarToPStr(S,Source);
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If Length(S)>0 then
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Dest:=S[1];
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end;
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operator :=(const source : variant) dest : widechar;{$ifdef SYSTEMINLINE}inline;{$endif}
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Var
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WS : WideString;
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begin
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VariantManager.VarToWStr(WS,Source);
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If Length(WS)>0 then
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Dest:=WS[1];
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end;
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{ Strings }
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operator :=(const source : variant) dest : shortstring;{$ifdef SYSTEMINLINE}inline;{$endif}
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begin
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VariantManager.VarToPStr(Dest,Source);
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end;
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operator :=(const source : variant) dest : ansistring;{$ifdef SYSTEMINLINE}inline;{$endif}
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begin
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VariantManager.vartolstr(dest,source);
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end;
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operator :=(const source : variant) dest : widestring;{$ifdef SYSTEMINLINE}inline;{$endif}
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begin
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variantmanager.vartowstr(dest,source);
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end;
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{ Floats }
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{$ifdef SUPPORT_SINGLE}
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operator :=(const source : variant) dest : single;{$ifdef SYSTEMINLINE}inline;{$endif}
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begin
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dest:=variantmanager.vartoreal(source);
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end;
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{$endif SUPPORT_SINGLE}
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{$ifdef SUPPORT_DOUBLE}
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operator :=(const source : variant) dest : double;{$ifdef SYSTEMINLINE}inline;{$endif}
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begin
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dest:=variantmanager.vartoreal(source);
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end;
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{$endif SUPPORT_DOUBLE}
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{$ifdef SUPPORT_EXTENDED}
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operator :=(const source : variant) dest : extended;{$ifdef SYSTEMINLINE}inline;{$endif}
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begin
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dest:=variantmanager.vartoreal(source);
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end;
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{$endif SUPPORT_EXTENDED}
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{$ifdef SUPPORT_COMP}
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operator :=(const source : variant) dest : comp;{$ifdef SYSTEMINLINE}inline;{$endif}
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begin
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dest:=comp(variantmanager.vartoreal(source));
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end;
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{$endif SUPPORT_COMP}
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{ Misc. }
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operator :=(const source : variant) dest : currency;{$ifdef SYSTEMINLINE}inline;{$endif}
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begin
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dest:=variantmanager.vartocurr(source);
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end;
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operator :=(const source : variant) dest : tdatetime;{$ifdef SYSTEMINLINE}inline;{$endif}
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begin
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dest:=variantmanager.vartotdatetime(source);
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end;
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operator :=(const source : olevariant) dest : variant;{$ifdef SYSTEMINLINE}inline;{$endif}
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begin
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tvardata(result):=tvardata(source);
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end;
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operator :=(const source : variant) dest : olevariant;{$ifdef SYSTEMINLINE}inline;{$endif}
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begin
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variantmanager.olevarfromvar(dest,source);
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end;
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operator :=(const source : variant) dest : terror;{$ifdef SYSTEMINLINE}inline;{$endif}
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begin
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dest:=variantmanager.vartoint(source);
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end;
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{**********************************************************************
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Operators
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**********************************************************************}
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operator or(const op1,op2 : variant) dest : variant;{$ifdef SYSTEMINLINE}inline;{$endif}
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begin
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dest:=op1;
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variantmanager.varop(dest,op2,opor);
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end;
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operator and(const op1,op2 : variant) dest : variant;{$ifdef SYSTEMINLINE}inline;{$endif}
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begin
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dest:=op1;
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variantmanager.varop(dest,op2,opand);
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end;
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operator xor(const op1,op2 : variant) dest : variant;{$ifdef SYSTEMINLINE}inline;{$endif}
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begin
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dest:=op1;
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variantmanager.varop(dest,op2,opxor);
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end;
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operator not(const op : variant) dest : variant;{$ifdef SYSTEMINLINE}inline;{$endif}
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begin
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dest:=op;
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variantmanager.varnot(dest);
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end;
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operator shl(const op1,op2 : variant) dest : variant;{$ifdef SYSTEMINLINE}inline;{$endif}
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begin
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dest:=op1;
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variantmanager.varop(dest,op2,opshiftleft);
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end;
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operator shr(const op1,op2 : variant) dest : variant;{$ifdef SYSTEMINLINE}inline;{$endif}
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begin
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dest:=op1;
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variantmanager.varop(dest,op2,opshiftright);
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end;
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operator +(const op1,op2 : variant) dest : variant;{$ifdef SYSTEMINLINE}inline;{$endif}
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begin
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dest:=op1;
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variantmanager.varop(dest,op2,opadd);
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end;
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operator -(const op1,op2 : variant) dest : variant;{$ifdef SYSTEMINLINE}inline;{$endif}
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begin
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dest:=op1;
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variantmanager.varop(dest,op2,opsubtract);
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end;
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operator *(const op1,op2 : variant) dest : variant;{$ifdef SYSTEMINLINE}inline;{$endif}
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begin
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dest:=op1;
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variantmanager.varop(dest,op2,opmultiply);
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end;
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operator /(const op1,op2 : variant) dest : variant;{$ifdef SYSTEMINLINE}inline;{$endif}
|
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begin
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dest:=op1;
|
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variantmanager.varop(dest,op2,opdivide);
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end;
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operator **(const op1,op2 : variant) dest : variant;{$ifdef SYSTEMINLINE}inline;{$endif}
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begin
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dest:=op1;
|
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variantmanager.varop(dest,op2,oppower);
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end;
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|
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operator div(const op1,op2 : variant) dest : variant;{$ifdef SYSTEMINLINE}inline;{$endif}
|
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begin
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dest:=op1;
|
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variantmanager.varop(dest,op2,opintdivide);
|
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end;
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|
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operator mod(const op1,op2 : variant) dest : variant;{$ifdef SYSTEMINLINE}inline;{$endif}
|
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begin
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dest:=op1;
|
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variantmanager.varop(dest,op2,opmodulus);
|
|
end;
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|
|
operator -(const op : variant) dest : variant;{$ifdef SYSTEMINLINE}inline;{$endif}
|
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begin
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dest:=op;
|
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variantmanager.varneg(dest);
|
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end;
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|
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operator =(const op1,op2 : variant) dest : boolean;{$ifdef SYSTEMINLINE}inline;{$endif}
|
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begin
|
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dest:=variantmanager.cmpop(op1,op2,opcmpeq);
|
|
end;
|
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|
|
operator <(const op1,op2 : variant) dest : boolean;{$ifdef SYSTEMINLINE}inline;{$endif}
|
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begin
|
|
dest:=variantmanager.cmpop(op1,op2,opcmplt);
|
|
end;
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|
|
operator >(const op1,op2 : variant) dest : boolean;{$ifdef SYSTEMINLINE}inline;{$endif}
|
|
begin
|
|
dest:=variantmanager.cmpop(op1,op2,opcmpgt);
|
|
end;
|
|
|
|
operator >=(const op1,op2 : variant) dest : boolean;{$ifdef SYSTEMINLINE}inline;{$endif}
|
|
begin
|
|
dest:=variantmanager.cmpop(op1,op2,opcmpge);
|
|
end;
|
|
|
|
operator <=(const op1,op2 : variant) dest : boolean;{$ifdef SYSTEMINLINE}inline;{$endif}
|
|
begin
|
|
dest:=variantmanager.cmpop(op1,op2,opcmplt);
|
|
end;
|
|
|
|
procedure VarArrayRedim(var A: Variant; HighBound: SizeInt);
|
|
begin
|
|
variantmanager.vararrayredim(a,highbound);
|
|
end;
|
|
|
|
procedure VarCast(var dest : variant;const source : variant;vartype : longint);
|
|
|
|
begin
|
|
variantmanager.varcast(dest,source,vartype);
|
|
end;
|
|
|
|
|
|
{**********************************************************************
|
|
from OLEVariant assignments
|
|
**********************************************************************}
|
|
{ Integer }
|
|
operator :=(const source : olevariant) dest : byte;{$ifdef SYSTEMINLINE}inline;{$endif}
|
|
begin
|
|
{ cast away olevar to var conversion and avoid
|
|
endless recursion }
|
|
dest:=variantmanager.vartoint(variant(tvardata(source)));
|
|
end;
|
|
|
|
|
|
operator :=(const source : olevariant) dest : shortint;{$ifdef SYSTEMINLINE}inline;{$endif}
|
|
begin
|
|
dest:=variantmanager.vartoint(variant(tvardata(source)));
|
|
end;
|
|
|
|
|
|
operator :=(const source : olevariant) dest : word;{$ifdef SYSTEMINLINE}inline;{$endif}
|
|
begin
|
|
dest:=variantmanager.vartoint(variant(tvardata(source)));
|
|
end;
|
|
|
|
|
|
operator :=(const source : olevariant) dest : smallint;{$ifdef SYSTEMINLINE}inline;{$endif}
|
|
begin
|
|
dest:=variantmanager.vartoint(variant(tvardata(source)));
|
|
end;
|
|
|
|
|
|
operator :=(const source : olevariant) dest : dword;{$ifdef SYSTEMINLINE}inline;{$endif}
|
|
begin
|
|
dest:=variantmanager.vartoint(variant(tvardata(source)));
|
|
end;
|
|
|
|
|
|
operator :=(const source : olevariant) dest : longint;{$ifdef SYSTEMINLINE}inline;{$endif}
|
|
begin
|
|
dest:=variantmanager.vartoint(variant(tvardata(source)));
|
|
end;
|
|
|
|
|
|
operator :=(const source : olevariant) dest : qword;{$ifdef SYSTEMINLINE}inline;{$endif}
|
|
begin
|
|
dest:=variantmanager.vartoint64(variant(tvardata(source)));
|
|
end;
|
|
|
|
|
|
operator :=(const source : olevariant) dest : int64;{$ifdef SYSTEMINLINE}inline;{$endif}
|
|
begin
|
|
dest:=variantmanager.vartoword64(variant(tvardata(source)));
|
|
end;
|
|
|
|
|
|
{ Boolean }
|
|
operator :=(const source : olevariant) dest : boolean;{$ifdef SYSTEMINLINE}inline;{$endif}
|
|
begin
|
|
dest:=variantmanager.vartobool(variant(tvardata(source)));
|
|
end;
|
|
|
|
|
|
operator :=(const source : olevariant) dest : wordbool;{$ifdef SYSTEMINLINE}inline;{$endif}
|
|
begin
|
|
dest:=variantmanager.vartobool(variant(tvardata(source)));
|
|
end;
|
|
|
|
|
|
operator :=(const source : olevariant) dest : longbool;{$ifdef SYSTEMINLINE}inline;{$endif}
|
|
begin
|
|
dest:=variantmanager.vartobool(variant(tvardata(source)));
|
|
end;
|
|
|
|
|
|
{ Chars }
|
|
operator :=(const source : olevariant) dest : char;{$ifdef SYSTEMINLINE}inline;{$endif}
|
|
var
|
|
S : String;
|
|
begin
|
|
VariantManager.VarToPStr(S,Source);
|
|
If Length(S)>0 then
|
|
Dest:=S[1]
|
|
else
|
|
Dest:=#0;
|
|
end;
|
|
|
|
|
|
operator :=(const source : olevariant) dest : widechar;{$ifdef SYSTEMINLINE}inline;{$endif}
|
|
Var
|
|
WS : WideString;
|
|
begin
|
|
VariantManager.VarToWStr(WS,Source);
|
|
If Length(WS)>0 then
|
|
Dest:=WS[1]
|
|
else
|
|
Dest:=#0;
|
|
end;
|
|
|
|
|
|
{ Strings }
|
|
operator :=(const source : olevariant) dest : shortstring;{$ifdef SYSTEMINLINE}inline;{$endif}
|
|
begin
|
|
variantmanager.vartopstr(dest,variant(tvardata(source)));
|
|
end;
|
|
|
|
|
|
operator :=(const source : olevariant) dest : ansistring;{$ifdef SYSTEMINLINE}inline;{$endif}
|
|
begin
|
|
variantmanager.vartolstr(dest,variant(tvardata(source)));
|
|
end;
|
|
|
|
|
|
operator :=(const source : olevariant) dest : widestring;{$ifdef SYSTEMINLINE}inline;{$endif}
|
|
begin
|
|
variantmanager.vartowstr(dest,variant(tvardata(source)));
|
|
end;
|
|
|
|
|
|
{ Floats }
|
|
{$ifdef SUPPORT_SINGLE}
|
|
operator :=(const source : olevariant) dest : single;{$ifdef SYSTEMINLINE}inline;{$endif}
|
|
begin
|
|
dest:=variantmanager.vartoreal(variant(tvardata(source)));
|
|
end;
|
|
{$endif SUPPORT_SINGLE}
|
|
|
|
|
|
{$ifdef SUPPORT_DOUBLE}
|
|
operator :=(const source : olevariant) dest : double;{$ifdef SYSTEMINLINE}inline;{$endif}
|
|
begin
|
|
dest:=variantmanager.vartoreal(variant(tvardata(source)));
|
|
end;
|
|
{$endif SUPPORT_DOUBLE}
|
|
|
|
|
|
{$ifdef SUPPORT_EXTENDED}
|
|
operator :=(const source : olevariant) dest : extended;{$ifdef SYSTEMINLINE}inline;{$endif}
|
|
begin
|
|
dest:=variantmanager.vartoreal(variant(tvardata(source)));
|
|
end;
|
|
{$endif SUPPORT_EXTENDED}
|
|
|
|
|
|
{$ifdef SUPPORT_COMP}
|
|
operator :=(const source : olevariant) dest : comp;{$ifdef SYSTEMINLINE}inline;{$endif}
|
|
begin
|
|
dest:=variantmanager.vartoreal(variant(tvardata(source)));
|
|
end;
|
|
{$endif SUPPORT_COMP}
|
|
|
|
|
|
{ Misc. }
|
|
operator :=(const source : olevariant) dest : currency;{$ifdef SYSTEMINLINE}inline;{$endif}
|
|
begin
|
|
dest:=variantmanager.vartocurr(variant(tvardata(source)));
|
|
end;
|
|
|
|
|
|
operator :=(const source : olevariant) dest : tdatetime;{$ifdef SYSTEMINLINE}inline;{$endif}
|
|
begin
|
|
dest:=variantmanager.vartotdatetime(variant(tvardata(source)));
|
|
end;
|
|
|
|
|
|
operator :=(const source : olevariant) dest : terror;{$ifdef SYSTEMINLINE}inline;{$endif}
|
|
begin
|
|
dest:=variantmanager.vartoint(variant(tvardata(source)));
|
|
end;
|
|
|
|
{**********************************************************************
|
|
to OLEVariant assignments
|
|
**********************************************************************}
|
|
|
|
operator :=(const source : byte) dest : olevariant;{$ifdef SYSTEMINLINE}inline;{$endif}
|
|
begin
|
|
variantmanager.olevarfromint(dest,source,1);
|
|
end;
|
|
|
|
|
|
operator :=(const source : shortint) dest : olevariant;{$ifdef SYSTEMINLINE}inline;{$endif}
|
|
begin
|
|
variantmanager.olevarfromint(dest,source,-1);
|
|
end;
|
|
|
|
|
|
operator :=(const source : word) dest : olevariant;{$ifdef SYSTEMINLINE}inline;{$endif}
|
|
begin
|
|
variantmanager.olevarfromint(dest,source,2);
|
|
end;
|
|
|
|
|
|
operator :=(const source : smallint) dest : olevariant;{$ifdef SYSTEMINLINE}inline;{$endif}
|
|
begin
|
|
variantmanager.olevarfromint(dest,source,-2);
|
|
end;
|
|
|
|
|
|
operator :=(const source : dword) dest : olevariant;{$ifdef SYSTEMINLINE}inline;{$endif}
|
|
begin
|
|
variantmanager.olevarfromint(dest,source,4);
|
|
end;
|
|
|
|
|
|
operator :=(const source : longint) dest : olevariant;{$ifdef SYSTEMINLINE}inline;{$endif}
|
|
begin
|
|
variantmanager.olevarfromint(dest,source,-4);
|
|
end;
|
|
|
|
|
|
operator :=(const source : qword) dest : olevariant;{$ifdef SYSTEMINLINE}inline;{$endif}
|
|
begin
|
|
variantmanager.olevarfromint(dest,source,8);
|
|
end;
|
|
|
|
|
|
operator :=(const source : int64) dest : olevariant;{$ifdef SYSTEMINLINE}inline;{$endif}
|
|
begin
|
|
variantmanager.olevarfromint(dest,source,-8);
|
|
end;
|
|
|
|
{ Boolean }
|
|
operator :=(const source : boolean) dest : olevariant;{$ifdef SYSTEMINLINE}inline;{$endif}
|
|
begin
|
|
variantmanager.varfromBool(variant(tvardata(dest)),Source);
|
|
end;
|
|
|
|
|
|
operator :=(const source : wordbool) dest : olevariant;{$ifdef SYSTEMINLINE}inline;{$endif}
|
|
begin
|
|
variantmanager.varfromBool(variant(tvardata(Dest)),Source);
|
|
end;
|
|
|
|
|
|
operator :=(const source : longbool) dest : olevariant;{$ifdef SYSTEMINLINE}inline;{$endif}
|
|
begin
|
|
variantmanager.varfromBool(variant(tvardata(Dest)),Source);
|
|
end;
|
|
|
|
|
|
{ Chars }
|
|
operator :=(const source : char) dest : olevariant;{$ifdef SYSTEMINLINE}inline;{$endif}
|
|
begin
|
|
variantmanager.olevarfrompstr(dest,source);
|
|
end;
|
|
|
|
|
|
operator :=(const source : widechar) dest : olevariant;{$ifdef SYSTEMINLINE}inline;{$endif}
|
|
begin
|
|
variantmanager.varfromwstr(variant(tvardata(dest)),source);
|
|
end;
|
|
|
|
|
|
{ Strings }
|
|
operator :=(const source : shortstring) dest : olevariant;{$ifdef SYSTEMINLINE}inline;{$endif}
|
|
begin
|
|
variantmanager.olevarfrompstr(dest,source);
|
|
end;
|
|
|
|
|
|
operator :=(const source : ansistring) dest : olevariant;{$ifdef SYSTEMINLINE}inline;{$endif}
|
|
begin
|
|
variantmanager.olevarfromlstr(dest,source);
|
|
end;
|
|
|
|
|
|
operator :=(const source : widestring) dest : olevariant;{$ifdef SYSTEMINLINE}inline;{$endif}
|
|
begin
|
|
variantmanager.varfromwstr(variant(tvardata(dest)),source);
|
|
end;
|
|
|
|
|
|
{ Floats }
|
|
{$ifdef SUPPORT_SINGLE}
|
|
operator :=(const source : single) dest : olevariant;{$ifdef SYSTEMINLINE}inline;{$endif}
|
|
begin
|
|
variantmanager.varfromreal(variant(tvardata(dest)),source);
|
|
end;
|
|
{$endif SUPPORT_SINGLE}
|
|
|
|
|
|
{$ifdef SUPPORT_DOUBLE}
|
|
operator :=(const source : double) dest : olevariant;{$ifdef SYSTEMINLINE}inline;{$endif}
|
|
begin
|
|
variantmanager.varfromreal(variant(tvardata(dest)),source);
|
|
end;
|
|
{$endif SUPPORT_DOUBLE}
|
|
|
|
|
|
{$ifdef SUPPORT_EXTENDED}
|
|
operator :=(const source : extended) dest : olevariant;{$ifdef SYSTEMINLINE}inline;{$endif}
|
|
begin
|
|
variantmanager.varfromreal(variant(tvardata(dest)),source);
|
|
end;
|
|
{$endif SUPPORT_EXTENDED}
|
|
|
|
|
|
{$ifdef SUPPORT_COMP}
|
|
operator :=(const source : comp) dest : olevariant;{$ifdef SYSTEMINLINE}inline;{$endif}
|
|
begin
|
|
variantmanager.varfromreal(variant(tvardata(dest)),source);
|
|
end;
|
|
{$endif SUPPORT_COMP}
|
|
|
|
|
|
{ Misc. }
|
|
operator :=(const source : currency) dest : olevariant;{$ifdef SYSTEMINLINE}inline;{$endif}
|
|
begin
|
|
variantmanager.varfromcurr(variant(tvardata(dest)),source);
|
|
end;
|
|
|
|
|
|
operator :=(const source : tdatetime) dest : olevariant;{$ifdef SYSTEMINLINE}inline;{$endif}
|
|
begin
|
|
variantmanager.varfromtdatetime(variant(tvardata(dest)),source);
|
|
end;
|
|
|
|
|
|
operator :=(const source : terror) dest : olevariant;{$ifdef SYSTEMINLINE}inline;{$endif}
|
|
begin
|
|
variantmanager.olevarfromint(dest,source,-sizeof(terror));
|
|
end;
|
|
{**********************************************************************
|
|
Variant manager functions
|
|
**********************************************************************}
|
|
|
|
procedure GetVariantManager(var VarMgr: TVariantManager);
|
|
begin
|
|
VarMgr:=VariantManager;
|
|
end;
|
|
|
|
procedure SetVariantManager(const VarMgr: TVariantManager);
|
|
begin
|
|
VariantManager:=VarMgr;
|
|
end;
|
|
|
|
function IsVariantManagerSet: Boolean;
|
|
var
|
|
i : longint;
|
|
begin
|
|
I:=0;
|
|
Result:=True;
|
|
While Result and (I<(sizeof(tvariantmanager) div sizeof(pointer))-1) do
|
|
begin
|
|
Result:=Pointer(ppointer(@variantmanager+i*sizeof(pointer))^)<>Pointer(@invalidvariantop);
|
|
Inc(I);
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure initvariantmanager;
|
|
var
|
|
i : longint;
|
|
begin
|
|
VarDispProc:=@vardisperror;
|
|
DispCallByIDProc:=@vardisperror;
|
|
tvardata(Unassigned).VType:=varEmpty;
|
|
tvardata(Null).VType:=varNull;
|
|
for i:=0 to (sizeof(tvariantmanager) div sizeof(pointer))-1 do
|
|
ppointer(@variantmanager+i*sizeof(pointer))^:=@invalidvariantopnovariants;
|
|
pointer(variantmanager.varclear):=@varclear
|
|
end;
|