68 lines
2.7 KiB
C++
68 lines
2.7 KiB
C++
//------------------------------------------------------------------------
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// Project : SDK Base
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// Version : 1.0
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//
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// Category : Helpers
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// Filename : base/source/classfactoryhelpers.h
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// Created by : Steinberg, 03/2017
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// Description : Class factory
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//
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//-----------------------------------------------------------------------------
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// This file is part of a Steinberg SDK. It is subject to the license terms
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// in the LICENSE file found in the top-level directory of this distribution
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// and at www.steinberg.net/sdklicenses.
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// No part of the SDK, including this file, may be copied, modified, propagated,
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// or distributed except according to the terms contained in the LICENSE file.
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//-----------------------------------------------------------------------------
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#pragma once
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//------------------------------------------------------------------------------
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// Helper Macros. Not intended for direct use.
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// Use:
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// META_CLASS(className),
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// META_CLASS_IFACE(className,Interface),
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// META_CLASS_SINGLE(className,Interface)
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// instead.
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//------------------------------------------------------------------------------
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#define META_CREATE_FUNC(funcName) static FUnknown* funcName ()
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#define CLASS_CREATE_FUNC(className) \
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namespace Meta { \
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META_CREATE_FUNC (make##className) { return (NEW className)->unknownCast (); } \
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}
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#define SINGLE_CREATE_FUNC(className) \
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namespace Meta { \
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META_CREATE_FUNC (make##className) { return className::instance ()->unknownCast (); } \
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}
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#define _META_CLASS(className) \
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namespace Meta { \
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static Steinberg::MetaClass meta##className ((#className), Meta::make##className); \
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}
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#define _META_CLASS_IFACE(className, Interface) \
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namespace Meta { \
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static Steinberg::MetaClass meta##Interface##className ((#className), Meta::make##className, \
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Interface##_iid); \
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}
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/** TODO
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*/
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#define META_CLASS(className) \
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CLASS_CREATE_FUNC (className) \
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_META_CLASS (className)
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/** TODO
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*/
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#define META_CLASS_IFACE(className, Interface) \
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CLASS_CREATE_FUNC (className) \
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_META_CLASS_IFACE (className, Interface)
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/** TODO
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*/
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#define META_CLASS_SINGLE(className, Interface) \
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SINGLE_CREATE_FUNC (className) \
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_META_CLASS_IFACE (className, Interface)
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