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Program trtti1;
{$Mode Delphi}
{$M+}
Uses
Typinfo;
Const TypeNames : Array [TTypeKind] of string[15] =
('Unknown','Integer','Char','Enumeration',
'Float','Set','Method','ShortString','LongString',
'AnsiString','WideString','Variant','Array','Record',
'Interface','Class','Object','WideChar','Bool','Int64','QWord',
'DynamicArray','RawInterface','ProcVar','UnicodeString','UnicodeChar',
'Helper','File','ClassRef','Pointer');
Const OrdinalTypes = [tkInteger,tkChar,tkENumeration,tkbool];
Type
TMyEnum = (meFirst,meSecond,meThird);
TMyTestObject = Class(TObject)
Private
FBoolean : Boolean;
FByte : Byte;
FChar : Char;
FWord : Word;
FInteger : Integer;
Flongint : Longint;
FCardinal : Cardinal;
FReal : Real;
FExtended : Extended;
FMyEnum : TMyEnum;
FAnsiString : AnsiSTring;
FObj : TObject;
FIntf : IInterface;
FStored : Boolean;
Function GetBoolean : Boolean;
Function GetByte : Byte;
Function GetChar : Char;
Function GetWord : Word;
Function GetInteger : Integer;
Function GetLongint : Longint;
Function GetCardinal : Cardinal;
Function GetReal : Real;
Function GetExtended : Extended;
Function GetAnsiString : AnsiString;
Function GetMyEnum : TMyEnum;
Procedure SetBoolean ( Value : Boolean);
Procedure SetByte ( Value : Byte );
Procedure SetChar ( Value : Char );
Procedure SetWord ( Value : Word );
Procedure SetInteger ( Value : Integer );
Procedure SetLongint ( Value : Longint );
Procedure SetCardinal ( Value : Cardinal );
Procedure SetReal ( Value : Real );
Procedure SetExtended ( Value : Extended );
Procedure SetAnsiString ( Value : AnsiString );
Procedure SetMyEnum ( Value : TMyEnum );
Function GetVirtualBoolean : Boolean; virtual;
Function GetVirtualByte : Byte; virtual;
Function GetVirtualChar : Char; virtual;
Function GetVirtualWord : Word; virtual;
Function GetVirtualInteger : Integer; virtual;
Function GetVirtualLongint : Longint; virtual;
Function GetVirtualCardinal : Cardinal; virtual;
Function GetVirtualReal : Real; virtual;
Function GetVirtualExtended : Extended; virtual;
Function GetVirtualAnsiString : AnsiString; virtual;
Function GetVirtualMyEnum : TMyEnum; virtual;
Procedure SetVirtualBoolean ( Value : Boolean); virtual;
Procedure SetVirtualByte ( Value : Byte ); virtual;
Procedure SetVirtualChar ( Value : Char ); virtual;
Procedure SetVirtualWord ( Value : Word ); virtual;
Procedure SetVirtualInteger ( Value : Integer ); virtual;
Procedure SetVirtualLongint ( Value : Longint ); virtual;
Procedure SetVirtualCardinal ( Value : Cardinal ); virtual;
Procedure SetVirtualReal ( Value : Real ); virtual;
Procedure SetVirtualExtended ( Value : Extended ); virtual;
Procedure SetVirtualAnsiString ( Value : AnsiString ); virtual;
Procedure SetVirtualMyEnum ( Value : TMyEnum ); virtual;
Function GetStaticStored : Boolean;
Function GetVirtualStored : Boolean;virtual;
Public
Constructor Create;
Destructor Destroy;override;
Published
Property ObjField: TObject read FObj write FObj;
Property IntfField: IInterface read FIntf write FIntf;
Property BooleanField : Boolean Read FBoolean Write FBoolean;
Property ByteField : Byte Read FByte Write FByte;
Property CharField : Char Read FChar Write FChar;
Property WordField : Word Read FWord Write FWord;
Property IntegerField : Integer Read FInteger Write FInteger;
Property LongintField : Longint Read FLongint Write FLongint;
Property CardinalField : Cardinal Read FCardinal Write FCardinal;
Property RealField : Real Read FReal Write FReal;
Property ExtendedField : Extended Read FExtended Write FExtended;
Property AnsiStringField : AnsiString Read FAnsiString Write FAnsiString;
Property MyEnumField : TMyEnum Read FMyEnum Write FMyEnum;
Property BooleanMethod : Boolean Read GetBoolean Write SetBoolean;
Property ByteMethod : Byte Read GetByte Write SetByte;
Property CharMethod : Char Read GetChar Write SetChar;
Property WordMethod : Word Read GetWord Write SetWord;
Property IntegerMethod : Integer Read GetInteger Write SetInteger;
Property LongintMethod : Longint Read GetLongint Write SetLongint;
Property CardinalMethod : Cardinal Read GetCardinal Write SetCardinal;
Property RealMethod : Real Read GetReal Write SetReal;
Property ExtendedMethod : Extended Read GetExtended Write SetExtended;
Property AnsiStringMethod : AnsiString Read GetAnsiString Write SetAnsiString;
Property MyEnumMethod : TMyEnum Read GetMyEnum Write SetMyEnum;
Property BooleanVirtualMethod : Boolean Read GetVirtualBoolean Write SetVirtualBoolean;
Property ByteVirtualMethod : Byte Read GetVirtualByte Write SetVirtualByte;
Property CharVirtualMethod : Char Read GetVirtualChar Write SetVirtualChar;
Property WordVirtualMethod : Word Read GetVirtualWord Write SetVirtualWord;
Property IntegerVirtualMethod : Integer Read GetVirtualInteger Write SetVirtualInteger;
Property LongintVirtualMethod : Longint Read GetVirtualLongint Write SetVirtualLongint;
Property CardinalVirtualMethod : Cardinal Read GetVirtualCardinal Write SetVirtualCardinal;
Property RealVirtualMethod : Real Read GetVirtualReal Write SetVirtualReal;
Property ExtendedVirtualMethod : Extended Read GetVirtualExtended Write SetVirtualExtended;
Property AnsiStringVirtualMethod : AnsiString Read GetVirtualAnsiString Write SetVirtualAnsiString;
Property MyEnumVirtualMethod : TMyEnum Read GetVirtualMyEnum Write SetVirtualMyEnum;
Property StoredIntegerConstFalse : Longint Read FLongint Stored False;
Property StoredIntegerConstTrue : Longint Read FLongint Stored True;
Property StoredIntegerField : Longint Read FLongint Stored FStored;
Property StoredIntegerMethod : Longint Read Flongint Stored GetStaticStored;
Property StoredIntegerVirtualMethod : Longint Read Flongint Stored GetVirtualStored;
end;
Constructor TMyTestObject.Create;
begin
FBoolean:=true;
FByte:=1; { : Byte;}
FChar:='B'; { : Char; }
FWord:=3; {: Word; }
FInteger:=4; {: Integer; }
Flongint:=5; { : Longint; }
FCardinal:=6; {: Cardinal; }
FReal:=7.0; { : Real;}
FExtended :=8.0; { Extended;}
FMyEnum:=methird; { TMyEnum;}
FAnsiString:='this is an AnsiString';
FObj:=TObject.Create;
FIntf:=TInterfacedObject.Create;
end;
Destructor TMyTestObject.Destroy;
begin
FObj.Free;
Inherited Destroy;
end;
Function TMyTestObject.GetBoolean : boolean;
begin
Result:=FBoolean;
end;
Function TMyTestObject.GetByte : Byte;
begin
Result:=FByte;
end;
Function TMyTestObject.GetChar : Char;
begin
Result:=FChar;
end;
Function TMyTestObject.GetWord : Word;
begin
Result:=FWord;
end;
Function TMyTestObject.GetInteger : Integer;
begin
Result:=FInteger;
end;
Function TMyTestObject.GetLongint : Longint;
begin
Result:=FLongint;
end;
Function TMyTestObject.GetCardinal : Cardinal;
begin
Result:=FCardinal;
end;
Function TMyTestObject.GetReal : Real;
begin
Result:=FReal;
end;
Function TMyTestObject.GetExtended : Extended;
begin
Result:=FExtended;
end;
Function TMyTestObject.GetAnsiString : AnsiString;
begin
Result:=FAnsiString;
end;
Function TMyTestObject.GetMyEnum : TMyEnum;
begin
Result:=FMyEnum;
end;
Procedure TMyTestObject.Setboolean ( Value : boolean );
begin
Fboolean:=Value;
end;
Procedure TMyTestObject.SetByte ( Value : Byte );
begin
FByte:=Value;
end;
Procedure TMyTestObject.SetChar ( Value : Char );
begin
FChar:=Value;
end;
Procedure TMyTestObject.SetWord ( Value : Word );
begin
FWord:=Value;
end;
Procedure TMyTestObject.SetInteger ( Value : Integer );
begin
FInteger:=Value;
end;
Procedure TMyTestObject.SetLongint ( Value : Longint );
begin
FLongint:=Value;
end;
Procedure TMyTestObject.SetCardinal ( Value : Cardinal );
begin
FCardinal:=Value;
end;
Procedure TMyTestObject.SetReal ( Value : Real );
begin
FReal:=Value;
end;
Procedure TMyTestObject.SetExtended ( Value : Extended );
begin
FExtended:=Value;
end;
Procedure TMyTestObject.SetAnsiString ( Value : AnsiString );
begin
FAnsiString:=Value;
end;
Procedure TMyTestObject.SetMyEnum ( Value : TMyEnum );
begin
FMyEnum:=Value;
end;
Function TMyTestObject.GetVirtualBoolean : boolean;
begin
Result:=FBoolean;
end;
Function TMyTestObject.GetVirtualByte : Byte;
begin
Result:=FByte;
end;
Function TMyTestObject.GetVirtualChar : Char;
begin
Result:=FChar;
end;
Function TMyTestObject.GetVirtualWord : Word;
begin
Result:=FWord;
end;
Function TMyTestObject.GetVirtualInteger : Integer;
begin
Result:=FInteger;
end;
Function TMyTestObject.GetVirtualLongint : Longint;
begin
Result:=FLongint;
end;
Function TMyTestObject.GetVirtualCardinal : Cardinal;
begin
Result:=FCardinal;
end;
Function TMyTestObject.GetVirtualReal : Real;
begin
Result:=FReal;
end;
Function TMyTestObject.GetVirtualExtended : Extended;
begin
Result:=FExtended;
end;
Function TMyTestObject.GetVirtualAnsiString : AnsiString;
begin
Result:=FAnsiString;
end;
Function TMyTestObject.GetVirtualMyEnum : TMyEnum;
begin
Result:=FMyEnum;
end;
Procedure TMyTestObject.SetVirtualboolean ( Value : boolean );
begin
Fboolean:=Value;
end;
Procedure TMyTestObject.SetVirtualByte ( Value : Byte );
begin
FByte:=Value;
end;
Procedure TMyTestObject.SetVirtualChar ( Value : Char );
begin
FChar:=Value;
end;
Procedure TMyTestObject.SetVirtualWord ( Value : Word );
begin
FWord:=Value;
end;
Procedure TMyTestObject.SetVirtualInteger ( Value : Integer );
begin
FInteger:=Value;
end;
Procedure TMyTestObject.SetVirtualLongint ( Value : Longint );
begin
FLongint:=Value;
end;
Procedure TMyTestObject.SetVirtualCardinal ( Value : Cardinal );
begin
FCardinal:=Value;
end;
Procedure TMyTestObject.SetVirtualReal ( Value : Real );
begin
FReal:=Value;
end;
Procedure TMyTestObject.SetVirtualExtended ( Value : Extended );
begin
FExtended:=Value;
end;
Procedure TMyTestObject.SetVirtualAnsiString ( Value : AnsiString );
begin
FAnsiString:=Value;
end;
Procedure TMyTestObject.SetVirtualMyEnum ( Value : TMyEnum );
begin
FMyEnum:=Value;
end;
Function TMyTestObject.GetStaticStored : Boolean;
begin
Result:=False;
end;
Function TMyTestObject.GetVirtualStored : Boolean;
begin
Result:=False;
end;
Procedure DumpMem ( PL : PByte );
Var I,j : longint;
begin
For I:=1 to 16 do
begin
Write ((I-1)*16:3,' :');
For J:=1 to 10 do
begin
If (PL^>31) and (PL^<129) then
Write(' ',CHar(PL^))
else
Write (PL^:3);
Write (' ');
inc(pl);
end;
writeln;
end;
end;
Function ProcType (PP : Byte) : String;
begin
Case PP and 3 of
ptfield : Result:='from Field';
ptstatic : Result:='with static method';
ptVirtual : Result:='with virtual method';
ptconst : Result:='with Const';
end;
end;
Procedure DumpTypeInfo (O : TMyTestObject);
Var
PT : PTypeData;
PI : PTypeInfo;
I : Longint;
PP : PPropList;
begin
PI:=O.ClassInfo;
Writeln ('Type kind : ',TypeNames[PI^.Kind]);
Writeln ('Type name : ',PI^.Name);
PT:=GetTypeData(PI);
//DumpMem(PByte(PI));
If PT^.ParentInfo=Nil then
Writeln ('Object has no parent info')
else
Writeln ('Object has parent info');
Writeln ('Property Count : ',PT^.PropCount);
Writeln ('Unit name : ',PT^.UnitName);
GetMem (PP,PT^.PropCount*SizeOf(Pointer));
GetPropInfos(PI,PP);
For I:=0 to PT^.PropCount-1 do
If PP^[i]<>Nil then
With PP^[I]^ do
begin
Writeln ('Property name : ',Name);
Writeln (' Type kind: ',TypeNames[PropType^.Kind]);
Writeln (' Type Name: ',PropType^.Name);
If GetProc=Nil then Write ('No');
Writeln (' Getproc available');
If SetProc=Nil then Write ('No');
Writeln (' Setproc available');
If StoredProc=Nil then Write ('No');
Writeln (' Storedproc available');
Writeln (' Get property ',proctype(Propprocs));
Writeln (' Set Property ',proctype(propprocs shr 2));
Writeln (' Stored Property ',proctype(propprocs shr 4));
Writeln (' Default : ',Default,' Index : ',Index);
Writeln (' NameIndex : ',NameIndex);
end;
FreeMem (PP);
end;
Procedure PrintObject ( Obj: TMyTestObject);
begin
With Obj do
begin
Writeln ('Field properties :');
Writeln ('Property ObjField : ',PtrUInt(ObjField));
Writeln ('Property IntfField : ',PtrUInt(IntfField));
Writeln ('Property booleanField : ',booleanField);
Writeln ('Property ByteField : ',ByteField);
Writeln ('Property CharField : ',CharField);
Writeln ('Property WordField : ',WordField);
Writeln ('Property IntegerField : ',IntegerField);
Writeln ('Property LongintField : ',LongintField);
Writeln ('Property CardinalField : ',CardinalField);
Writeln ('Property RealField : ',RealField);
Writeln ('Property ExtendedField : ',ExtendedFIeld);
Writeln ('Property AnsiStringField : ',AnsiStringField);
Writeln ('Property MyEnumField : ',ord(MyEnumField));
Writeln ('Method properties :');
Writeln ('Property booleanMethod : ',BooleanMethod);
Writeln ('Property ByteMethod : ',ByteMethod);
Writeln ('Property CharMethod : ',CharMethod);
Writeln ('Property WordMethod : ',WordMethod);
Writeln ('Property IntegerMethod : ',IntegerMethod);
Writeln ('Property LongintMethod : ',LongintMethod);
Writeln ('Property CardinalMethod : ',CardinalMethod);
Writeln ('Property RealMethod : ',RealMethod);
Writeln ('Property ExtendedMethod : ',ExtendedMethod);
Writeln ('Property AnsiStringMethod : ',AnsiStringMethod);
Writeln ('Property MyEnumMethod : ',ord(MyEnumMethod));
Writeln ('VirtualMethod properties :');
Writeln ('Property booleanVirtualMethod : ',BooleanVirtualMethod);
Writeln ('Property ByteVirtualMethod : ',ByteVirtualMethod);
Writeln ('Property CharVirtualMethod : ',CharVirtualMethod);
Writeln ('Property WordVirtualMethod : ',WordVirtualMethod);
Writeln ('Property IntegerVirtualMethod : ',IntegerVirtualMethod);
Writeln ('Property LongintVirtualMethod : ',LongintVirtualMethod);
Writeln ('Property CardinalVirtualMethod : ',CardinalVirtualMethod);
Writeln ('Property RealVirtualMethod : ',RealVirtualMethod);
Writeln ('Property ExtendedVirtualMethod : ',ExtendedVirtualMethod);
Writeln ('Property AnsiStringVirtualMethod : ',AnsiStringVirtualMethod);
Writeln ('Property MyEnumVirtualMethod : ',ord(MyEnumVirtualMethod));
end;
end;
Procedure TestGet (O : TMyTestObject);
Var
PT : PTypeData;
PI : PTypeInfo;
I,J : Longint;
PP : PPropList;
prI : PPropInfo;
Intf : IInterface;
begin
PI:=O.ClassInfo;
Writeln ('Type kind : ',TypeNames[PI^.Kind]);
Writeln ('Type name : ',PI^.Name);
PT:=GetTypeData(PI);
If PT^.ParentInfo=Nil then
Writeln ('Object has no parent info')
else
Writeln ('Object has parent info');
Writeln ('Property Count : ',PT^.PropCount);
Writeln ('Unit name : ',PT^.UnitName);
GetMem (PP,PT^.PropCount*SizeOf(Pointer));
GetPropInfos(PI,PP);
For I:=0 to PT^.PropCount-1 do
begin
pri:=PP^[i];
With Pri^ do
begin
Write ('(Examining ',name,' : Type : ',TypeNames[PropType^.Kind],', ');
If (Proptype^.kind in Ordinaltypes) Then
begin
J:=GetOrdProp(O,pri);
Write ('Value : ',j);
If PropType^.Kind=tkenumeration then
Write ('(=',GetEnumName(Proptype,J),')')
end
else
Case pri^.proptype^.kind of
tkfloat : begin
Write ('Value : ');
Flush(output);
Write(GetFloatProp(O,pri))
end;
tkAstring : begin
Write ('value : ');
flush (output);
Write(GetStrProp(O,Pri));
end;
tkInterface : begin
Write ('value : ');
flush (output);
Write(PtrUInt(GetInterfaceProp(O,Pri)));
{ play a little bit with the interface to test SetInterfaceProp }
SetInterfaceProp(O,Pri,TInterfacedObject.Create);
end;
tkClass : begin
Write ('value : ');
flush (output);
Write(PtrUInt(GetObjectProp(O,Pri)));
end;
else
Write ('Untested type:',ord(pri^.proptype^.kind));
end;
Writeln (')');
end;
end;
FreeMem (PP);
end;
Var O : TMyTestObject;
begin
O:=TMyTestObject.Create;
DumpTypeInfo(O);
PrintObject(O);
testget(o);
O.Free;
end.
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