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95b49c0fed
Now that the return type of AddRef and Release are consistent between C++ and XPIDL, we can use the generated nsISupports.h instead of skipping the guts of it with an #if 0 and importing nsISupportsBase.h. nsISupportsBase.h had two #includes, nscore.h and nsID.h. nsISupports.h needs to continue to include both of these files so that things don't break. It gets nscore.h via nsrootidl.idl. I added the include of nsID.h to nsrootidl.idl because that file makes related definitions in XPIDL. Mostly this patch moves over comments from nsISupportsBase.h. The "Mac specific ": public __comobject" thing" comment seems to have been obsolete since at least 2001. I weakened the statement about binary compatibility with MSCOM. Differential Revision: https://phabricator.services.mozilla.com/D159170
61 lines
2.0 KiB
Plaintext
61 lines
2.0 KiB
Plaintext
/* -*- Mode: IDL; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/**
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* The mother of all xpcom interfaces.
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*/
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#include "nsrootidl.idl"
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/**
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* Basic component object model interface. Objects which implement
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* this interface support runtime interface discovery (QueryInterface)
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* and a reference counted memory model (AddRef/Release). This is
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* modelled after the win32 IUnknown API.
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*
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* Historically, nsISupports needed to be binary compatible with COM's
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* IUnknown, so the IID of nsISupports is the same as it. That is no
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* longer a goal, and hopefully nobody depends on it. We may break
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* this compatibility at any time.
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*/
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[scriptable, uuid(00000000-0000-0000-c000-000000000046)]
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interface nsISupports {
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/**
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* A run time mechanism for interface discovery.
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* @param aIID [in] A requested interface IID
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* @param aInstancePtr [out] A pointer to an interface pointer to
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* receive the result.
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* @return <b>NS_OK</b> if the interface is supported by the associated
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* instance, <b>NS_NOINTERFACE</b> if it is not.
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*
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* aInstancePtr must not be null.
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*/
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void QueryInterface(in nsIIDRef aIID,
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[iid_is(aIID), retval] out nsQIResult aInstancePtr);
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/**
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* Increases the reference count for this interface.
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* The associated instance will not be deleted unless
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* the reference count is returned to zero.
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*
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* @return The resulting reference count.
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*/
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[noscript, notxpcom] MozExternalRefCountType AddRef();
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/**
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* Decreases the reference count for this interface.
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* Generally, if the reference count returns to zero,
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* the associated instance is deleted.
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*
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* @return The resulting reference count.
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*/
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[noscript, notxpcom] MozExternalRefCountType Release();
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};
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%{C++
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#include "nsISupportsUtils.h"
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%}
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