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Delphi.Mocks.Utils.pas
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Delphi.Mocks.Utils.pas
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{***************************************************************************}
{ }
{ Delphi.Mocks }
{ }
{ Copyright (C) 2011 Vincent Parrett }
{ }
{ http://www.finalbuilder.com }
{ }
{ }
{***************************************************************************}
{ }
{ Licensed under the Apache License, Version 2.0 (the "License"); }
{ you may not use this file except in compliance with the License. }
{ You may obtain a copy of the License at }
{ }
{ http://www.apache.org/licenses/LICENSE-2.0 }
{ }
{ Unless required by applicable law or agreed to in writing, software }
{ distributed under the License is distributed on an "AS IS" BASIS, }
{ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. }
{ See the License for the specific language governing permissions and }
{ limitations under the License. }
{ }
{***************************************************************************}
unit Delphi.Mocks.Utils;
interface
uses
TypInfo;
function CheckInterfaceHasRTTI(const info : PTypeInfo) : boolean;
function GetVirtualMethodCount(AClass: TClass): Integer;
implementation
uses
SysUtils,
IntfInfo;
function CheckInterfaceHasRTTI(const info : PTypeInfo) : boolean;
var
IntfMetaData: TIntfMetaData;
begin
result := False;
case info.Kind of
tkInterface :
begin
try
GetIntfMetaData(info, IntfMetaData, True);
result := True;
except
end;
end;
end;
end;
//courtesy of Allen Bauer on stackoverflow
//http://stackoverflow.com/questions/760513/where-can-i-find-information-on-the-structure-of-the-delphi-vmt
function GetVirtualMethodCount(AClass: TClass): Integer;
begin
Result := (PInteger(Integer(AClass) + vmtClassName)^ -
(Integer(AClass) + vmtParent) - SizeOf(Pointer)) div SizeOf(Pointer);
end;
end.