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Istype no TValue.

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Ajustado type cast com problemas.
This commit is contained in:
Henrique Gottardi Werlang 2021-08-19 17:26:23 -03:00 committed by Michael Van Canneyt
parent 6a2412fd97
commit e61df9571c
1 changed files with 16 additions and 1 deletions
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17
packages/rtl/rtti.pas
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@ -57,6 +57,8 @@ type
function AsUnicodeString: UnicodeString;
function Cast(ATypeInfo: TTypeInfo; const EmptyAsAnyType: Boolean = True): TValue; overload;
generic function Cast<T>(const EmptyAsAnyType: Boolean = True): TValue; overload;
function IsType(ATypeInfo: TTypeInfo; const EmptyAsAnyType: Boolean = True): Boolean; overload;
generic function IsType<T>(const EmptyAsAnyType: Boolean = True): Boolean; overload;
function GetArrayElement(aIndex: SizeInt): TValue;
function GetArrayLength: SizeInt;
function IsArray: boolean;
@ -615,6 +617,19 @@ begin
Result := Cast(System.TypeInfo(T), EmptyAsAnyType);
end;
function TValue.IsType(ATypeInfo: TTypeInfo; const EmptyAsAnyType: Boolean): Boolean;
var
AnyValue: TValue;
begin
Result := TryCast(ATypeInfo, AnyValue, EmptyAsAnyType);
end;
generic function TValue.IsType<T>(const EmptyAsAnyType: Boolean): Boolean;
begin
Result := IsType(System.TypeInfo(T), EmptyAsAnyType);
end;
function TValue.TryCast(ATypeInfo: TTypeInfo; out AResult: TValue; const EmptyAsAnyType: Boolean): Boolean;
function ConversionAccepted: TTypeKinds;
@ -626,7 +641,7 @@ function TValue.TryCast(ATypeInfo: TTypeInfo; out AResult: TValue; const EmptyAs
tkEnumeration: Exit([tkInteger, tkEnumeration]);
else Exit([ATypeInfo.Kind]);
else Exit([TypeInfo.Kind]);
end;
end;