From 8c4603c73675958efc960fbd4bb599a2909d106a Mon Sep 17 00:00:00 2001 From: Konstantin Date: Mon, 16 Jan 2023 14:52:43 +0100 Subject: Source codes --- ComLightLib/server/interfaceMap.h | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 ComLightLib/server/interfaceMap.h (limited to 'ComLightLib/server/interfaceMap.h') diff --git a/ComLightLib/server/interfaceMap.h b/ComLightLib/server/interfaceMap.h new file mode 100644 index 0000000..605ed33 --- /dev/null +++ b/ComLightLib/server/interfaceMap.h @@ -0,0 +1,31 @@ +#pragma once +#include "../utils/typeTraits.hpp" + +// Unlike ATL, the interface map is optional for ComLight. +// If you won't declare a map, the object will support 2 interfaces: IUnknown, and whatever template argument was passed to ObjectRoot class. +#define BEGIN_COM_MAP() \ +protected: \ +bool implQueryInterface( REFIID iid, void** ppvObject ) { + +#define END_COM_MAP() return false; } + +namespace ComLight +{ + namespace details + { + template + inline bool tryReturnInterface( REFIID iid, C* pThis, void** ppvResult ) + { + static_assert( pointersAssignable(), "Trying to implement an interface that doesn't derive from IUnknown" ); + static_assert( pointersAssignable(), "Declared support for an interface, but the class doesn't implement it" ); + if( I::iid() != iid ) + return false; + I* const result = pThis; + result->AddRef(); + *ppvResult = result; + return true; + } + } +} + +#define COM_INTERFACE_ENTRY( I ) if( ComLight::details::tryReturnInterface( iid, this, ppvObject ) ) return true; \ No newline at end of file -- cgit v1.2.3