/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ /* ***** BEGIN LICENSE BLOCK ***** * Version: MPL 1.1/GPL 2.0/LGPL 2.1 * * The contents of this file are subject to the Mozilla Public License Version * 1.1 (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.mozilla.org/MPL/ * * Software distributed under the License is distributed on an "AS IS" basis, * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License * for the specific language governing rights and limitations under the * License. * * The Original Code is mozilla.org code. * * The Initial Developer of the Original Code is * The Mozilla Foundation. * Portions created by the Initial Developer are Copyright (C) 2006 * the Initial Developer. All Rights Reserved. * * Contributor(s): * * Alternatively, the contents of this file may be used under the terms of * either of the GNU General Public License Version 2 or later (the "GPL"), * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), * in which case the provisions of the GPL or the LGPL are applicable instead * of those above. If you wish to allow use of your version of this file only * under the terms of either the GPL or the LGPL, and not to allow others to * use your version of this file under the terms of the MPL, indicate your * decision by deleting the provisions above and replace them with the notice * and other provisions required by the GPL or the LGPL. If you do not delete * the provisions above, a recipient may use your version of this file under * the terms of any one of the MPL, the GPL or the LGPL. * * ***** END LICENSE BLOCK ***** */ #ifndef nsCycleCollectionParticipant_h__ #define nsCycleCollectionParticipant_h__ #include "nsISupports.h" // NOTE: If you use header files to define DEBUG_CC, you must do so here // *and* in nsCycleCollector.h //#define DEBUG_CC #define NS_CYCLECOLLECTIONPARTICIPANT_IID \ { \ 0x9674489b, \ 0x1f6f, \ 0x4550, \ { 0xa7, 0x30, 0xcc, 0xae, 0xdd, 0x10, 0x4c, 0xf9 } \ } /** * Special IID to get at the base nsISupports for a class. Usually this is the * canonical nsISupports pointer, but in the case of tearoffs for example it is * the base nsISupports pointer of the tearoff. This allow the cycle collector * to have separate nsCycleCollectionParticipant's for tearoffs or aggregated * classes. */ #define NS_CYCLECOLLECTIONISUPPORTS_IID \ { \ 0xc61eac14, \ 0x5f7a, \ 0x4481, \ { 0x96, 0x5e, 0x7e, 0xaa, 0x6e, 0xff, 0xa8, 0x5f } \ } /** * Just holds the IID so NS_GET_IID works. */ class nsCycleCollectionISupports { public: NS_DECLARE_STATIC_IID_ACCESSOR(NS_CYCLECOLLECTIONISUPPORTS_IID) }; NS_DEFINE_STATIC_IID_ACCESSOR(nsCycleCollectionISupports, NS_CYCLECOLLECTIONISUPPORTS_IID) class nsCycleCollectionParticipant; enum CCNodeType { RefCounted, GCMarked, GCUnmarked }; class NS_NO_VTABLE nsCycleCollectionTraversalCallback { public: // If type is RefCounted you must call DescribeNode() with an accurate // refcount, otherwise cycle collection will fail, and probably crash. // If type is not refcounted then the refcount will be ignored. // If the callback cares about objsz or objname, it should // put WANT_DEBUG_INFO in mFlags. NS_IMETHOD_(void) DescribeNode(CCNodeType type, nsrefcnt refcount, size_t objsz, const char *objname) = 0; NS_IMETHOD_(void) NoteXPCOMRoot(nsISupports *root) = 0; NS_IMETHOD_(void) NoteRoot(PRUint32 langID, void *root, nsCycleCollectionParticipant* helper) = 0; NS_IMETHOD_(void) NoteScriptChild(PRUint32 langID, void *child) = 0; NS_IMETHOD_(void) NoteXPCOMChild(nsISupports *child) = 0; NS_IMETHOD_(void) NoteNativeChild(void *child, nsCycleCollectionParticipant *helper) = 0; // Give a name to the edge associated with the next call to // NoteScriptChild, NoteXPCOMChild, or NoteNativeChild. // Callbacks who care about this should set WANT_DEBUG_INFO in the // flags. NS_IMETHOD_(void) NoteNextEdgeName(const char* name) = 0; enum { // Values for flags: // Caller should pass useful objsz and objname to DescribeNode // and should call NoteNextEdgeName. WANT_DEBUG_INFO = (1<<0), // Caller should not skip objects that we know will be // uncollectable. WANT_ALL_TRACES = (1<<1) }; PRUint32 Flags() const { return mFlags; } PRBool WantDebugInfo() const { return (mFlags & WANT_DEBUG_INFO) != 0; } PRBool WantAllTraces() const { return (mFlags & WANT_ALL_TRACES) != 0; } protected: nsCycleCollectionTraversalCallback() : mFlags(0) {} PRUint32 mFlags; }; class NS_NO_VTABLE nsCycleCollectionParticipant { public: NS_DECLARE_STATIC_IID_ACCESSOR(NS_CYCLECOLLECTIONPARTICIPANT_IID) NS_IMETHOD Traverse(void *p, nsCycleCollectionTraversalCallback &cb) = 0; NS_IMETHOD RootAndUnlinkJSObjects(void *p) = 0; NS_IMETHOD Unlink(void *p) = 0; NS_IMETHOD Unroot(void *p) = 0; }; NS_DEFINE_STATIC_IID_ACCESSOR(nsCycleCollectionParticipant, NS_CYCLECOLLECTIONPARTICIPANT_IID) #undef IMETHOD_VISIBILITY #define IMETHOD_VISIBILITY NS_COM_GLUE typedef void (* TraceCallback)(PRUint32 langID, void *p, void *closure); class NS_NO_VTABLE nsScriptObjectTracer : public nsCycleCollectionParticipant { public: NS_IMETHOD_(void) Trace(void *p, TraceCallback cb, void *closure) = 0; void NS_COM_GLUE TraverseScriptObjects(void *p, nsCycleCollectionTraversalCallback &cb); }; class NS_COM_GLUE nsXPCOMCycleCollectionParticipant : public nsScriptObjectTracer { public: NS_IMETHOD Traverse(void *p, nsCycleCollectionTraversalCallback &cb); NS_IMETHOD RootAndUnlinkJSObjects(void *p); NS_IMETHOD Unlink(void *p); NS_IMETHOD Unroot(void *p); NS_IMETHOD_(void) Trace(void *p, TraceCallback cb, void *closure); NS_IMETHOD_(void) UnmarkPurple(nsISupports *p); PRBool CheckForRightISupports(nsISupports *s); }; #undef IMETHOD_VISIBILITY #define IMETHOD_VISIBILITY NS_VISIBILITY_HIDDEN /////////////////////////////////////////////////////////////////////////////// // Helpers for implementing a QI to nsXPCOMCycleCollectionParticipant /////////////////////////////////////////////////////////////////////////////// #define NS_CYCLE_COLLECTION_INNERCLASS \ cycleCollection #define NS_CYCLE_COLLECTION_CLASSNAME(_class) \ _class::NS_CYCLE_COLLECTION_INNERCLASS #define NS_CYCLE_COLLECTION_INNERNAME \ _cycleCollectorGlobal #define NS_CYCLE_COLLECTION_NAME(_class) \ _class::NS_CYCLE_COLLECTION_INNERNAME #define NS_IMPL_QUERY_CYCLE_COLLECTION(_class) \ if ( aIID.Equals(NS_GET_IID(nsXPCOMCycleCollectionParticipant)) ) { \ *aInstancePtr = & NS_CYCLE_COLLECTION_NAME(_class); \ return NS_OK; \ } else #define NS_IMPL_QUERY_CYCLE_COLLECTION_ISUPPORTS(_class) \ if ( aIID.Equals(NS_GET_IID(nsCycleCollectionISupports)) ) \ foundInterface = NS_CYCLE_COLLECTION_CLASSNAME(_class)::Upcast(this); \ else #define NS_INTERFACE_MAP_ENTRY_CYCLE_COLLECTION(_class) \ NS_IMPL_QUERY_CYCLE_COLLECTION(_class) #define NS_INTERFACE_MAP_ENTRY_CYCLE_COLLECTION_ISUPPORTS(_class) \ NS_IMPL_QUERY_CYCLE_COLLECTION_ISUPPORTS(_class) #define NS_INTERFACE_MAP_ENTRIES_CYCLE_COLLECTION(_class) \ NS_INTERFACE_MAP_ENTRY_CYCLE_COLLECTION(_class) \ NS_INTERFACE_MAP_ENTRY_CYCLE_COLLECTION_ISUPPORTS(_class) #define NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(_class) \ NS_INTERFACE_MAP_BEGIN(_class) \ NS_INTERFACE_MAP_ENTRIES_CYCLE_COLLECTION(_class) #define NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(_class) \ NS_INTERFACE_MAP_BEGIN(_class) \ NS_INTERFACE_MAP_ENTRY_CYCLE_COLLECTION(_class) #define NS_INTERFACE_TABLE_TO_MAP_SEGUE_CYCLE_COLLECTION(_class) \ if (rv == NS_OK) return rv; \ nsISupports* foundInterface; \ NS_INTERFACE_MAP_ENTRIES_CYCLE_COLLECTION(_class) #define NS_INTERFACE_TABLE_HEAD_CYCLE_COLLECTION_INHERITED(_class) \ NS_IMETHODIMP _class::QueryInterface(REFNSIID aIID, void** aInstancePtr) \ { \ NS_PRECONDITION(aInstancePtr, "null out param"); \ \ if ( aIID.Equals(NS_GET_IID(nsXPCOMCycleCollectionParticipant)) ) { \ *aInstancePtr = &NS_CYCLE_COLLECTION_NAME(_class); \ return NS_OK; \ } \ nsresult rv; #define NS_CYCLE_COLLECTION_UPCAST(obj, clazz) \ NS_CYCLE_COLLECTION_CLASSNAME(clazz)::Upcast(obj) /////////////////////////////////////////////////////////////////////////////// // Helpers for implementing nsCycleCollectionParticipant::RootAndUnlinkJSObjects /////////////////////////////////////////////////////////////////////////////// #define NS_IMPL_CYCLE_COLLECTION_ROOT_BEGIN(_class) \ NS_IMETHODIMP \ NS_CYCLE_COLLECTION_CLASSNAME(_class)::RootAndUnlinkJSObjects(void *p) \ { \ nsISupports *s = static_cast(p); \ NS_ASSERTION(CheckForRightISupports(s), \ "not the nsISupports pointer we expect"); \ nsXPCOMCycleCollectionParticipant::RootAndUnlinkJSObjects(s); \ _class *tmp = Downcast(s); #define NS_IMPL_CYCLE_COLLECTION_ROOT_BEGIN_NATIVE(_class, _root_function) \ NS_IMETHODIMP \ NS_CYCLE_COLLECTION_CLASSNAME(_class)::RootAndUnlinkJSObjects(void *p) \ { \ _class *tmp = static_cast<_class*>(p); \ tmp->_root_function(); #define NS_IMPL_CYCLE_COLLECTION_ROOT_END \ return NS_OK; \ } /////////////////////////////////////////////////////////////////////////////// // Helpers for implementing nsCycleCollectionParticipant::Unlink /////////////////////////////////////////////////////////////////////////////// #define NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(_class) \ NS_IMETHODIMP \ NS_CYCLE_COLLECTION_CLASSNAME(_class)::Unlink(void *p) \ { \ nsISupports *s = static_cast(p); \ NS_ASSERTION(CheckForRightISupports(s), \ "not the nsISupports pointer we expect"); \ _class *tmp = Downcast(s); #define NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(_class, _base_class) \ NS_IMETHODIMP \ NS_CYCLE_COLLECTION_CLASSNAME(_class)::Unlink(void *p) \ { \ nsISupports *s = static_cast(p); \ NS_ASSERTION(CheckForRightISupports(s), \ "not the nsISupports pointer we expect"); \ _class *tmp = static_cast<_class*>(Downcast(s)); \ NS_CYCLE_COLLECTION_CLASSNAME(_base_class)::Unlink(s); #define NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_NATIVE(_class) \ NS_IMETHODIMP \ NS_CYCLE_COLLECTION_CLASSNAME(_class)::Unlink(void *p) \ { \ _class *tmp = static_cast<_class*>(p); #define NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_field) \ tmp->_field = NULL; #define NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMARRAY(_field) \ tmp->_field.Clear(); #define NS_IMPL_CYCLE_COLLECTION_UNLINK_NSTARRAY(_field) \ tmp->_field.Clear(); #define NS_IMPL_CYCLE_COLLECTION_UNLINK_END \ return NS_OK; \ } #define NS_IMPL_CYCLE_COLLECTION_UNLINK_0(_class) \ NS_IMETHODIMP \ NS_CYCLE_COLLECTION_CLASSNAME(_class)::Unlink(void *p) \ { \ NS_ASSERTION(CheckForRightISupports(static_cast(p)), \ "not the nsISupports pointer we expect"); \ return NS_OK; \ } #define NS_IMPL_CYCLE_COLLECTION_UNLINK_NATIVE_0(_class) \ NS_IMETHODIMP \ NS_CYCLE_COLLECTION_CLASSNAME(_class)::Unlink(void *p) \ { \ return NS_OK; \ } /////////////////////////////////////////////////////////////////////////////// // Helpers for implementing nsCycleCollectionParticipant::Traverse /////////////////////////////////////////////////////////////////////////////// #define NS_IMPL_CYCLE_COLLECTION_DESCRIBE(_class, _refcnt) \ cb.DescribeNode(RefCounted, _refcnt, sizeof(_class), #_class); #define NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_REFCNT(_class, _refcnt) \ NS_IMETHODIMP \ NS_CYCLE_COLLECTION_CLASSNAME(_class)::Traverse \ (void *p, \ nsCycleCollectionTraversalCallback &cb) \ { \ nsISupports *s = static_cast(p); \ NS_ASSERTION(CheckForRightISupports(s), \ "not the nsISupports pointer we expect"); \ _class *tmp = Downcast(s); \ NS_IMPL_CYCLE_COLLECTION_DESCRIBE(_class, _refcnt) #define NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(_class) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_REFCNT(_class, tmp->mRefCnt.get()) // Base class' CC participant should return NS_SUCCESS_INTERRUPTED_TRAVERSE // from Traverse if it wants derived classes to not traverse anything from // their CC participant. #define NS_SUCCESS_INTERRUPTED_TRAVERSE \ NS_ERROR_GENERATE_SUCCESS(NS_ERROR_MODULE_XPCOM, 2) #define NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(_class, _base_class) \ NS_IMETHODIMP \ NS_CYCLE_COLLECTION_CLASSNAME(_class)::Traverse \ (void *p, \ nsCycleCollectionTraversalCallback &cb) \ { \ nsISupports *s = static_cast(p); \ NS_ASSERTION(CheckForRightISupports(s), \ "not the nsISupports pointer we expect"); \ _class *tmp = static_cast<_class*>(Downcast(s)); \ if (NS_CYCLE_COLLECTION_CLASSNAME(_base_class)::Traverse(s, cb) == \ NS_SUCCESS_INTERRUPTED_TRAVERSE) { \ return NS_SUCCESS_INTERRUPTED_TRAVERSE; \ } #define NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NATIVE_BEGIN(_class) \ NS_IMETHODIMP \ NS_CYCLE_COLLECTION_CLASSNAME(_class)::Traverse \ (void *p, \ nsCycleCollectionTraversalCallback &cb) \ { \ _class *tmp = static_cast<_class*>(p); \ NS_IMPL_CYCLE_COLLECTION_DESCRIBE(_class, tmp->mRefCnt.get()) #define NS_CYCLE_COLLECTION_NOTE_EDGE_NAME(_cb, _name) \ PR_BEGIN_MACRO \ if (NS_UNLIKELY((_cb).WantDebugInfo())) { \ (_cb).NoteNextEdgeName(_name); \ } \ PR_END_MACRO #define NS_IMPL_CYCLE_COLLECTION_TRAVERSE_RAWPTR(_field) \ PR_BEGIN_MACRO \ NS_CYCLE_COLLECTION_NOTE_EDGE_NAME(cb, #_field); \ cb.NoteXPCOMChild(tmp->_field); \ PR_END_MACRO; #define NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_field) \ PR_BEGIN_MACRO \ NS_CYCLE_COLLECTION_NOTE_EDGE_NAME(cb, #_field); \ cb.NoteXPCOMChild(tmp->_field.get()); \ PR_END_MACRO; #define NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR_AMBIGUOUS(_field, _base) \ PR_BEGIN_MACRO \ NS_CYCLE_COLLECTION_NOTE_EDGE_NAME(cb, #_field); \ cb.NoteXPCOMChild(NS_ISUPPORTS_CAST(_base*, tmp->_field)); \ PR_END_MACRO; #define NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMARRAY(_field) \ { \ PRInt32 i; \ for (i = 0; i < tmp->_field.Count(); ++i) { \ NS_CYCLE_COLLECTION_NOTE_EDGE_NAME(cb, #_field "[i]"); \ cb.NoteXPCOMChild(tmp->_field[i]); \ } \ } #define NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NATIVE_PTR(_ptr, _ptr_class, _name) \ PR_BEGIN_MACRO \ NS_CYCLE_COLLECTION_NOTE_EDGE_NAME(cb, _name); \ cb.NoteNativeChild(_ptr, &NS_CYCLE_COLLECTION_NAME(_ptr_class)); \ PR_END_MACRO; #define NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NATIVE_MEMBER(_field, _field_class) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NATIVE_PTR(tmp->_field, _field_class, \ #_field) #define NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSTARRAY(_array, _element_class, \ _name) \ { \ PRUint32 i, length = (_array).Length(); \ for (i = 0; i < length; ++i) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NATIVE_PTR((_array)[i], \ _element_class, \ _name "[i]"); \ } #define NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSTARRAY_MEMBER(_field, \ _element_class) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSTARRAY(tmp->_field, _element_class, \ #_field) #define NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS \ TraverseScriptObjects(tmp, cb); #define NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END \ return NS_OK; \ } /////////////////////////////////////////////////////////////////////////////// // Helpers for implementing nsScriptObjectTracer::Trace /////////////////////////////////////////////////////////////////////////////// #define NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN(_class) \ void \ NS_CYCLE_COLLECTION_CLASSNAME(_class)::Trace(void *p, \ TraceCallback aCallback, \ void *aClosure) \ { \ nsISupports *s = static_cast(p); \ NS_ASSERTION(CheckForRightISupports(s), \ "not the nsISupports pointer we expect"); \ _class *tmp = Downcast(s); #define NS_IMPL_CYCLE_COLLECTION_TRACE_NATIVE_BEGIN(_class) \ void \ NS_CYCLE_COLLECTION_CLASSNAME(_class)::Trace(void *p, \ TraceCallback aCallback, \ void *aClosure) \ { \ _class *tmp = static_cast<_class*>(p); #define NS_IMPL_CYCLE_COLLECTION_TRACE_CALLBACK(_langID, _object) \ if (_object) \ aCallback(_langID, _object, aClosure); #define NS_IMPL_CYCLE_COLLECTION_TRACE_MEMBER_CALLBACK(_langID, _field) \ NS_IMPL_CYCLE_COLLECTION_TRACE_CALLBACK(_langID, tmp->_field) #define NS_IMPL_CYCLE_COLLECTION_TRACE_JS_CALLBACK(_object) \ NS_IMPL_CYCLE_COLLECTION_TRACE_CALLBACK(nsIProgrammingLanguage::JAVASCRIPT, \ _object) #define NS_IMPL_CYCLE_COLLECTION_TRACE_JS_MEMBER_CALLBACK(_field) \ NS_IMPL_CYCLE_COLLECTION_TRACE_JS_CALLBACK(tmp->_field) // NB: The (void)tmp; hack in the TRACE_END macro exists to support // implementations that don't need to do anything in their Trace method. // Without this hack, some compilers warn about the unused tmp local. #define NS_IMPL_CYCLE_COLLECTION_TRACE_END \ (void)tmp; \ } /////////////////////////////////////////////////////////////////////////////// // Helpers for implementing a concrete nsCycleCollectionParticipant /////////////////////////////////////////////////////////////////////////////// #define NS_CYCLE_COLLECTION_PARTICIPANT_INSTANCE \ static NS_CYCLE_COLLECTION_INNERCLASS NS_CYCLE_COLLECTION_INNERNAME; #define NS_DECL_CYCLE_COLLECTION_CLASS_BODY_NO_UNLINK(_class, _base) \ public: \ NS_IMETHOD Traverse(void *p, \ nsCycleCollectionTraversalCallback &cb); \ NS_IMETHOD_(void) UnmarkPurple(nsISupports *s) \ { \ Downcast(s)->UnmarkPurple(); \ } \ static _class* Downcast(nsISupports* s) \ { \ return static_cast<_class*>(static_cast<_base*>(s)); \ } \ static nsISupports* Upcast(_class *p) \ { \ return NS_ISUPPORTS_CAST(_base*, p); \ } #define NS_DECL_CYCLE_COLLECTION_CLASS_BODY(_class, _base) \ NS_DECL_CYCLE_COLLECTION_CLASS_BODY_NO_UNLINK(_class, _base) \ NS_IMETHOD Unlink(void *p); #define NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(_class, _base) \ class NS_CYCLE_COLLECTION_INNERCLASS \ : public nsXPCOMCycleCollectionParticipant \ { \ NS_DECL_CYCLE_COLLECTION_CLASS_BODY(_class, _base) \ }; \ NS_CYCLE_COLLECTION_PARTICIPANT_INSTANCE #define NS_DECL_CYCLE_COLLECTION_CLASS(_class) \ NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(_class, _class) // Cycle collector helper for classes that don't want to unlink anything. // Note: if this is used a lot it might make sense to have a base class that // doesn't do anything in RootAndUnlinkJSObjects/Unlink/Unroot. #define NS_DECL_CYCLE_COLLECTION_CLASS_NO_UNLINK(_class) \ class NS_CYCLE_COLLECTION_INNERCLASS \ : public nsXPCOMCycleCollectionParticipant \ { \ NS_DECL_CYCLE_COLLECTION_CLASS_BODY_NO_UNLINK(_class, _class) \ NS_IMETHOD RootAndUnlinkJSObjects(void *p) \ { \ return NS_OK; \ } \ NS_IMETHOD Unlink(void *p) \ { \ return NS_OK; \ } \ NS_IMETHOD Unroot(void *p) \ { \ return NS_OK; \ } \ }; \ NS_CYCLE_COLLECTION_PARTICIPANT_INSTANCE #define NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_AMBIGUOUS(_class, _base) \ class NS_CYCLE_COLLECTION_INNERCLASS \ : public nsXPCOMCycleCollectionParticipant \ { \ NS_IMETHOD RootAndUnlinkJSObjects(void *p); \ NS_DECL_CYCLE_COLLECTION_CLASS_BODY(_class, _base) \ NS_IMETHOD_(void) Trace(void *p, TraceCallback cb, void *closure); \ }; \ NS_CYCLE_COLLECTION_PARTICIPANT_INSTANCE #define NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(_class) \ NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_AMBIGUOUS(_class, _class) #define NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED_BODY_NO_UNLINK(_class, \ _base_class) \ public: \ NS_IMETHOD Traverse(void *p, \ nsCycleCollectionTraversalCallback &cb); \ static _class* Downcast(nsISupports* s) \ { \ return static_cast<_class*>(static_cast<_base_class*>( \ NS_CYCLE_COLLECTION_CLASSNAME(_base_class)::Downcast(s))); \ } #define NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED_BODY(_class, _base_class) \ NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED_BODY_NO_UNLINK(_class, _base_class) \ NS_IMETHOD Unlink(void *p); #define NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(_class, _base_class) \ class NS_CYCLE_COLLECTION_INNERCLASS \ : public NS_CYCLE_COLLECTION_CLASSNAME(_base_class) \ { \ public: \ NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED_BODY(_class, _base_class) \ }; \ NS_CYCLE_COLLECTION_PARTICIPANT_INSTANCE #define NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED_NO_UNLINK(_class, \ _base_class) \ class NS_CYCLE_COLLECTION_INNERCLASS \ : public NS_CYCLE_COLLECTION_CLASSNAME(_base_class) \ { \ public: \ NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED_BODY_NO_UNLINK(_class, _base_class) \ }; \ NS_CYCLE_COLLECTION_PARTICIPANT_INSTANCE /** * This implements a stub UnmarkPurple function for classes that want to be * traversed but whose AddRef/Release functions don't add/remove them to/from * the purple buffer. If you're just using NS_DECL_CYCLE_COLLECTING_ISUPPORTS * then you don't need this. */ #define NS_DECL_CYCLE_COLLECTION_UNMARK_PURPLE_STUB(_class) \ NS_IMETHODIMP_(void) UnmarkPurple() \ { \ } \ #define NS_IMPL_CYCLE_COLLECTION_CLASS(_class) \ NS_CYCLE_COLLECTION_CLASSNAME(_class) NS_CYCLE_COLLECTION_NAME(_class); #define NS_DECL_CYCLE_COLLECTION_NATIVE_CLASS_BODY \ public: \ NS_IMETHOD RootAndUnlinkJSObjects(void *n); \ NS_IMETHOD Unlink(void *n); \ NS_IMETHOD Unroot(void *n); \ NS_IMETHOD Traverse(void *n, \ nsCycleCollectionTraversalCallback &cb); #define NS_DECL_CYCLE_COLLECTION_NATIVE_CLASS(_class) \ class NS_CYCLE_COLLECTION_INNERCLASS \ : public nsCycleCollectionParticipant \ { \ NS_DECL_CYCLE_COLLECTION_NATIVE_CLASS_BODY \ }; \ NS_CYCLE_COLLECTION_PARTICIPANT_INSTANCE #define NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_NATIVE_CLASS(_class) \ class NS_CYCLE_COLLECTION_INNERCLASS \ : public nsScriptObjectTracer \ { \ NS_DECL_CYCLE_COLLECTION_NATIVE_CLASS_BODY \ NS_IMETHOD_(void) Trace(void *p, TraceCallback cb, void *closure); \ }; \ NS_CYCLE_COLLECTION_PARTICIPANT_INSTANCE #define NS_IMPL_CYCLE_COLLECTION_ROOT_NATIVE(_class, _root_function) \ NS_IMETHODIMP \ NS_CYCLE_COLLECTION_CLASSNAME(_class)::RootAndUnlinkJSObjects(void *p) \ { \ _class *tmp = static_cast<_class*>(p); \ tmp->_root_function(); \ return NS_OK; \ } #define NS_IMPL_CYCLE_COLLECTION_UNROOT_NATIVE(_class, _unroot_function) \ NS_IMETHODIMP \ NS_CYCLE_COLLECTION_CLASSNAME(_class)::Unroot(void *p) \ { \ _class *tmp = static_cast<_class*>(p); \ tmp->_unroot_function(); \ return NS_OK; \ } #define NS_IMPL_CYCLE_COLLECTION_0(_class) \ NS_IMPL_CYCLE_COLLECTION_CLASS(_class) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_0(_class) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(_class) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END #define NS_IMPL_CYCLE_COLLECTION_1(_class, _f) \ NS_IMPL_CYCLE_COLLECTION_CLASS(_class) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(_class) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_END \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(_class) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END #define NS_IMPL_CYCLE_COLLECTION_2(_class, _f1, _f2) \ NS_IMPL_CYCLE_COLLECTION_CLASS(_class) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(_class) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f1) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f2) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_END \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(_class) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f1) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f2) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END #define NS_IMPL_CYCLE_COLLECTION_3(_class, _f1, _f2, _f3) \ NS_IMPL_CYCLE_COLLECTION_CLASS(_class) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(_class) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f1) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f2) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f3) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_END \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(_class) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f1) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f2) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f3) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END #define NS_IMPL_CYCLE_COLLECTION_4(_class, _f1, _f2, _f3, _f4) \ NS_IMPL_CYCLE_COLLECTION_CLASS(_class) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(_class) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f1) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f2) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f3) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f4) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_END \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(_class) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f1) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f2) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f3) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f4) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END #define NS_IMPL_CYCLE_COLLECTION_5(_class, _f1, _f2, _f3, _f4, _f5) \ NS_IMPL_CYCLE_COLLECTION_CLASS(_class) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(_class) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f1) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f2) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f3) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f4) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f5) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_END \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(_class) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f1) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f2) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f3) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f4) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f5) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END #define NS_IMPL_CYCLE_COLLECTION_6(_class, _f1, _f2, _f3, _f4, _f5, _f6) \ NS_IMPL_CYCLE_COLLECTION_CLASS(_class) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(_class) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f1) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f2) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f3) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f4) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f5) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f6) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_END \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(_class) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f1) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f2) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f3) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f4) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f5) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f6) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END #define NS_IMPL_CYCLE_COLLECTION_7(_class, _f1, _f2, _f3, _f4, _f5, _f6, _f7) \ NS_IMPL_CYCLE_COLLECTION_CLASS(_class) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(_class) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f1) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f2) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f3) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f4) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f5) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f6) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f7) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_END \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(_class) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f1) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f2) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f3) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f4) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f5) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f6) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f7) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END #define NS_IMPL_CYCLE_COLLECTION_8(_class, _f1, _f2, _f3, _f4, _f5, _f6, _f7, _f8) \ NS_IMPL_CYCLE_COLLECTION_CLASS(_class) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(_class) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f1) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f2) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f3) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f4) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f5) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f6) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f7) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f8) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_END \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(_class) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f1) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f2) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f3) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f4) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f5) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f6) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f7) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f8) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END #endif // nsCycleCollectionParticipant_h__