text: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
  /* This Source Code Form is subject to the terms of the Mozilla Public
   * License, v. 2.0. If a copy of the MPL was not distributed with this
   * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
  
  
  #ifndef nsISupportsImpl_h__
  #define nsISupportsImpl_h__
  
  #ifndef nscore_h___
  #include "nscore.h"
  #endif
  
  #ifndef nsISupportsBase_h__
  #include "nsISupportsBase.h"
  #endif
  
  #ifndef nsISupportsUtils_h__
  #include "nsISupportsUtils.h"
  #endif
  
  
  #if !defined(XPCOM_GLUE_AVOID_NSPR)
  #include "prthread.h" /* needed for thread-safety checks */
  #include "nsAtomicRefcnt.h" /* for NS_Atomic{Increment,Decrement}Refcnt */
  #endif
  
  #include "nsDebug.h"
  #include "nsTraceRefcnt.h"
  #include "nsCycleCollector.h"
  #include "nsCycleCollectorUtils.h"
  
  ////////////////////////////////////////////////////////////////////////////////
  // Macros to help detect thread-safety:
  
  #if defined(NS_DEBUG) && !defined(XPCOM_GLUE_AVOID_NSPR)
  
  class nsAutoOwningThread {
  public:
      nsAutoOwningThread() { mThread = PR_GetCurrentThread(); }
      void *GetThread() const { return mThread; }
  
  private:
      void *mThread;
  };
  
  #define NS_DECL_OWNINGTHREAD            nsAutoOwningThread _mOwningThread;
  #define NS_ASSERT_OWNINGTHREAD(_class) \
    NS_CheckThreadSafe(_mOwningThread.GetThread(), #_class " not thread-safe")
  #define NS_ASSERT_OWNINGTHREAD_AND_NOT_CCTHREAD(_class) \
    do { \
      if (NS_IsCycleCollectorThread()) { \
        NS_ERROR("Changing refcount of " #_class " object during Traverse is " \
                 "not permitted!"); \
      } \
      else { \
        NS_ASSERT_OWNINGTHREAD(_class); \
      } \
    } while (0)
  
  #else // !NS_DEBUG
  
  #define NS_DECL_OWNINGTHREAD            /* nothing */
  #define NS_ASSERT_OWNINGTHREAD(_class)  ((void)0)
  #define NS_ASSERT_OWNINGTHREAD_AND_NOT_CCTHREAD(_class)  ((void)0)
  
  #endif // NS_DEBUG
  
  #define NS_CCAR_REFCNT_BIT 1
  #define NS_CCAR_REFCNT_TO_TAGGED(rc_) \
    NS_INT32_TO_PTR((rc_ << 1) | NS_CCAR_REFCNT_BIT)
  #define NS_CCAR_PURPLE_ENTRY_TO_TAGGED(pe_) \
    static_cast<void*>(pe_)
  #define NS_CCAR_TAGGED_TO_REFCNT(tagged_) \
    nsrefcnt(NS_PTR_TO_INT32(tagged_) >> 1)
  #define NS_CCAR_TAGGED_TO_PURPLE_ENTRY(tagged_) \
    static_cast<nsPurpleBufferEntry*>(tagged_)
  #define NS_CCAR_TAGGED_STABILIZED_REFCNT NS_CCAR_PURPLE_ENTRY_TO_TAGGED(0)
  
  // Support for ISupports classes which interact with cycle collector.
  
  /**
   * This struct (once shipped) will be FROZEN with respect to the
   * NS_CycleCollectorSuspect2 and NS_CycleCollectorForget2 functions.  If
   * we need to change the struct, we'll need Suspect3 and Forget3 for the
   * new versions.
   */
  struct nsPurpleBufferEntry {
    union {
      nsISupports *mObject;                 // when low bit unset
      nsPurpleBufferEntry *mNextInFreeList; // when low bit set
    };
    // When an object is in the purple buffer, it replaces its reference
    // count with a (tagged) pointer to this entry, so we store the
    // reference count for it.
    nsrefcnt mRefCnt;
  };
  
  class nsCycleCollectingAutoRefCnt {
  
  public:
    nsCycleCollectingAutoRefCnt()
      : mTagged(NS_CCAR_REFCNT_TO_TAGGED(0))
    {}
  
    nsCycleCollectingAutoRefCnt(nsrefcnt aValue)
      : mTagged(NS_CCAR_REFCNT_TO_TAGGED(aValue))
    {
    }
  
    nsrefcnt incr(nsISupports *owner)
    {
      if (NS_UNLIKELY(mTagged == NS_CCAR_TAGGED_STABILIZED_REFCNT)) {
        // The sentinel value "purple bit alone, refcount 0" means
        // that we're stabilized, during finalization. In this
        // state we lie about our actual refcount if anyone asks
        // and say it's 2, which is basically true: the caller who
        // is incrementing has a reference, as does the decr() frame
        // that stabilized-and-is-deleting us.
        return 2;
      }
  
      nsrefcnt refcount;
      if (IsPurple()) {
        nsPurpleBufferEntry *e = NS_CCAR_TAGGED_TO_PURPLE_ENTRY(mTagged);
        NS_ASSERTION(e->mObject == owner, "wrong entry");
        refcount = e->mRefCnt;
        NS_ASSERTION(refcount != 0, "purple ISupports pointer with zero refcnt");
  
        if (NS_LIKELY(NS_CycleCollectorForget2(e))) {
          // |e| is now invalid
          ++refcount;
          mTagged = NS_CCAR_REFCNT_TO_TAGGED(refcount);
        } else {
          ++refcount;
          e->mRefCnt = refcount;
        }
      } else {
        refcount = NS_CCAR_TAGGED_TO_REFCNT(mTagged);
        ++refcount;
        mTagged = NS_CCAR_REFCNT_TO_TAGGED(refcount);
      }
  
      return refcount;
    }
  
    void stabilizeForDeletion(nsISupports*)
    {
      mTagged = NS_CCAR_TAGGED_STABILIZED_REFCNT;
    }
  
    nsrefcnt decr(nsISupports *owner)
    {
      if (NS_UNLIKELY(mTagged == NS_CCAR_TAGGED_STABILIZED_REFCNT))
        return 1;
  
      nsrefcnt refcount;
      if (IsPurple()) {
        nsPurpleBufferEntry *e = NS_CCAR_TAGGED_TO_PURPLE_ENTRY(mTagged);
        NS_ASSERTION(e->mObject == owner, "wrong entry");
        refcount = e->mRefCnt;
        --refcount;
        
        if (NS_UNLIKELY(refcount == 0)) {
          if (NS_UNLIKELY(!NS_CycleCollectorForget2(e))) {
            NS_NOTREACHED("forget should not fail when reference count hits 0");
            // Clear the entry's pointer to us.
            e->mObject = nsnull;
          }
          mTagged = NS_CCAR_REFCNT_TO_TAGGED(refcount);
        } else {
          e->mRefCnt = refcount;
        }
      } else {
        refcount = NS_CCAR_TAGGED_TO_REFCNT(mTagged);
        --refcount;
  
        nsPurpleBufferEntry *e;
        if (NS_LIKELY(refcount > 0) &&
            ((e = NS_CycleCollectorSuspect2(owner)))) {
          e->mRefCnt = refcount;
          mTagged = NS_CCAR_PURPLE_ENTRY_TO_TAGGED(e);
        } else {
          mTagged = NS_CCAR_REFCNT_TO_TAGGED(refcount);
        }
      }
  
      return refcount;
    }
  
    void unmarkPurple()
    {
      NS_ASSERTION(IsPurple(), "must be purple");
      nsrefcnt refcount = NS_CCAR_TAGGED_TO_PURPLE_ENTRY(mTagged)->mRefCnt;
      mTagged = NS_CCAR_REFCNT_TO_TAGGED(refcount);
    }
  
    void RemovePurple()
    {
      NS_ASSERTION(IsPurple(), "must be purple");
  #ifdef DEBUG_CC
      nsCycleCollector_logPurpleRemoval(
        NS_CCAR_TAGGED_TO_PURPLE_ENTRY(mTagged)->mObject);
  #endif
      // The entry will be added to the free list later. 
      NS_CCAR_TAGGED_TO_PURPLE_ENTRY(mTagged)->mObject = nsnull;
      unmarkPurple();
    }
  
    bool IsPurple() const
    {
      NS_ASSERTION(mTagged != NS_CCAR_TAGGED_STABILIZED_REFCNT,
                   "should have checked for stabilization first");
      return !(NS_PTR_TO_INT32(mTagged) & NS_CCAR_REFCNT_BIT);
    }
  
    nsrefcnt get() const
    {
      if (NS_UNLIKELY(mTagged == NS_CCAR_TAGGED_STABILIZED_REFCNT))
        return 1;
  
      return NS_UNLIKELY(IsPurple())
               ? NS_CCAR_TAGGED_TO_PURPLE_ENTRY(mTagged)->mRefCnt
               : NS_CCAR_TAGGED_TO_REFCNT(mTagged);
    }
  
    operator nsrefcnt() const
    {
      return get();
    }
  
   private:
    void *mTagged;
  };
  
  class nsAutoRefCnt {
  
   public:
      nsAutoRefCnt() : mValue(0) {}
      nsAutoRefCnt(nsrefcnt aValue) : mValue(aValue) {}
  
      // only support prefix increment/decrement
      nsrefcnt operator++() { return ++mValue; }
      nsrefcnt operator--() { return --mValue; }
  
      nsrefcnt operator=(nsrefcnt aValue) { return (mValue = aValue); }
      operator nsrefcnt() const { return mValue; }
      nsrefcnt get() const { return mValue; }
   private:
      // do not define these to enforce the faster prefix notation
      nsrefcnt operator++(int);
      nsrefcnt operator--(int);
      nsrefcnt mValue;
  };
  
  ///////////////////////////////////////////////////////////////////////////////
  
  /**
   * Declare the reference count variable and the implementations of the
   * AddRef and QueryInterface methods.
   */
  
  #define NS_DECL_ISUPPORTS                                                     \
  public:                                                                       \
    NS_IMETHOD QueryInterface(REFNSIID aIID,                                    \
                              void** aInstancePtr);                             \
    NS_IMETHOD_(nsrefcnt) AddRef(void);                                         \
    NS_IMETHOD_(nsrefcnt) Release(void);                                        \
  protected:                                                                    \
    nsAutoRefCnt mRefCnt;                                                       \
    NS_DECL_OWNINGTHREAD                                                        \
  public:
  
  #define NS_DECL_CYCLE_COLLECTING_ISUPPORTS                                    \
  public:                                                                       \
    NS_IMETHOD QueryInterface(REFNSIID aIID,                                    \
                              void** aInstancePtr);                             \
    NS_IMETHOD_(nsrefcnt) AddRef(void);                                         \
    NS_IMETHOD_(nsrefcnt) Release(void);                                        \
    void UnmarkIfPurple()                                                       \
    {                                                                           \
      if (NS_LIKELY(mRefCnt.IsPurple()))                                        \
        mRefCnt.unmarkPurple();                                                 \
    }                                                                           \
  protected:                                                                    \
    nsCycleCollectingAutoRefCnt mRefCnt;                                        \
    NS_DECL_OWNINGTHREAD                                                        \
  public:
  
  
  ///////////////////////////////////////////////////////////////////////////////
  
  /**
   * Previously used to initialize the reference count, but no longer needed.
   *
   * DEPRECATED.
   */
  #define NS_INIT_ISUPPORTS() ((void)0)
  
  /**
   * Use this macro to declare and implement the AddRef & Release methods for a
   * given non-XPCOM <i>_class</i>.
   *
   * @param _class The name of the class implementing the method
   */
  #define NS_INLINE_DECL_REFCOUNTING(_class)                                    \
  public:                                                                       \
    NS_METHOD_(nsrefcnt) AddRef(void) {                                         \
      NS_PRECONDITION(PRInt32(mRefCnt) >= 0, "illegal refcnt");                 \
      NS_ASSERT_OWNINGTHREAD_AND_NOT_CCTHREAD(_class);                          \
      ++mRefCnt;                                                                \
      NS_LOG_ADDREF(this, mRefCnt, #_class, sizeof(*this));                     \
      return mRefCnt;                                                           \
    }                                                                           \
    NS_METHOD_(nsrefcnt) Release(void) {                                        \
      NS_PRECONDITION(0 != mRefCnt, "dup release");                             \
      NS_ASSERT_OWNINGTHREAD_AND_NOT_CCTHREAD(_class);                          \
      --mRefCnt;                                                                \
      NS_LOG_RELEASE(this, mRefCnt, #_class);                                   \
      if (mRefCnt == 0) {                                                       \
        NS_ASSERT_OWNINGTHREAD(_class);                                         \
        mRefCnt = 1; /* stabilize */                                            \
        delete this;                                                            \
        return 0;                                                               \
      }                                                                         \
      return mRefCnt;                                                           \
    }                                                                           \
  protected:                                                                    \
    nsAutoRefCnt mRefCnt;                                                       \
    NS_DECL_OWNINGTHREAD                                                        \
  public:
  
  /**
   * Use this macro to declare and implement the AddRef & Release methods for a
   * given non-XPCOM <i>_class</i> in a threadsafe manner.
   *
   * DOES NOT DO REFCOUNT STABILIZATION!
   *
   * @param _class The name of the class implementing the method
   */
  #define NS_INLINE_DECL_THREADSAFE_REFCOUNTING(_class)                         \
  public:                                                                       \
    NS_METHOD_(nsrefcnt) AddRef(void) {                                         \
      NS_PRECONDITION(PRInt32(mRefCnt) >= 0, "illegal refcnt");                 \
      nsrefcnt count = NS_AtomicIncrementRefcnt(mRefCnt);                       \
      NS_LOG_ADDREF(this, count, #_class, sizeof(*this));                       \
      return (nsrefcnt) count;                                                  \
    }                                                                           \
    NS_METHOD_(nsrefcnt) Release(void) {                                        \
      NS_PRECONDITION(0 != mRefCnt, "dup release");                             \
      nsrefcnt count = NS_AtomicDecrementRefcnt(mRefCnt);                       \
      NS_LOG_RELEASE(this, count, #_class);                                     \
      if (count == 0) {                                                         \
        delete (this);                                                          \
        return 0;                                                               \
      }                                                                         \
      return count;                                                             \
    }                                                                           \
  protected:                                                                    \
    nsAutoRefCnt mRefCnt;                                                       \
  public:
  
  /**
   * Use this macro to implement the AddRef method for a given <i>_class</i>
   * @param _class The name of the class implementing the method
   */
  #define NS_IMPL_ADDREF(_class)                                                \
  NS_IMETHODIMP_(nsrefcnt) _class::AddRef(void)                                 \
  {                                                                             \
    NS_PRECONDITION(PRInt32(mRefCnt) >= 0, "illegal refcnt");                   \
    NS_ASSERT_OWNINGTHREAD_AND_NOT_CCTHREAD(_class);                            \
    ++mRefCnt;                                                                  \
    NS_LOG_ADDREF(this, mRefCnt, #_class, sizeof(*this));                       \
    return mRefCnt;                                                             \
  }
  
  /**
   * Use this macro to implement the AddRef method for a given <i>_class</i>
   * implemented as a wholly owned aggregated object intended to implement
   * interface(s) for its owner
   * @param _class The name of the class implementing the method
   * @param _aggregator the owning/containing object
   */
  #define NS_IMPL_ADDREF_USING_AGGREGATOR(_class, _aggregator)                  \
  NS_IMETHODIMP_(nsrefcnt) _class::AddRef(void)                                 \
  {                                                                             \
    NS_PRECONDITION(_aggregator, "null aggregator");                            \
    return (_aggregator)->AddRef();                                             \
  }
  
  /**
   * Use this macro to implement the Release method for a given
   * <i>_class</i>.
   * @param _class The name of the class implementing the method
   * @param _destroy A statement that is executed when the object's
   *   refcount drops to zero.
   *
   * For example,
   *
   *   NS_IMPL_RELEASE_WITH_DESTROY(Foo, Destroy(this))
   *
   * will cause
   *
   *   Destroy(this);
   *
   * to be invoked when the object's refcount drops to zero. This
   * allows for arbitrary teardown activity to occur (e.g., deallocation
   * of object allocated with placement new).
   */
  #define NS_IMPL_RELEASE_WITH_DESTROY(_class, _destroy)                        \
  NS_IMETHODIMP_(nsrefcnt) _class::Release(void)                                \
  {                                                                             \
    NS_PRECONDITION(0 != mRefCnt, "dup release");                               \
    NS_ASSERT_OWNINGTHREAD_AND_NOT_CCTHREAD(_class);                            \
    --mRefCnt;                                                                  \
    NS_LOG_RELEASE(this, mRefCnt, #_class);                                     \
    if (mRefCnt == 0) {                                                         \
      NS_ASSERT_OWNINGTHREAD(_class);                                           \
      mRefCnt = 1; /* stabilize */                                              \
      _destroy;                                                                 \
      return 0;                                                                 \
    }                                                                           \
    return mRefCnt;                                                             \
  }
  
  /**
   * Use this macro to implement the Release method for a given <i>_class</i>
   * @param _class The name of the class implementing the method
   *
   * A note on the 'stabilization' of the refcnt to one. At that point,
   * the object's refcount will have gone to zero. The object's
   * destructor may trigger code that attempts to QueryInterface() and
   * Release() 'this' again. Doing so will temporarily increment and
   * decrement the refcount. (Only a logic error would make one try to
   * keep a permanent hold on 'this'.)  To prevent re-entering the
   * destructor, we make sure that no balanced refcounting can return
   * the refcount to |0|.
   */
  #define NS_IMPL_RELEASE(_class) \
    NS_IMPL_RELEASE_WITH_DESTROY(_class, delete (this))
  
  /**
   * Use this macro to implement the Release method for a given <i>_class</i>
   * implemented as a wholly owned aggregated object intended to implement
   * interface(s) for its owner
   * @param _class The name of the class implementing the method
   * @param _aggregator the owning/containing object
   */
  #define NS_IMPL_RELEASE_USING_AGGREGATOR(_class, _aggregator)                 \
  NS_IMETHODIMP_(nsrefcnt) _class::Release(void)                                \
  {                                                                             \
    NS_PRECONDITION(_aggregator, "null aggregator");                            \
    return (_aggregator)->Release();                                            \
  }
  
  
  #define NS_IMPL_CYCLE_COLLECTING_ADDREF(_class)                               \
  NS_IMETHODIMP_(nsrefcnt) _class::AddRef(void)                                 \
  {                                                                             \
    NS_PRECONDITION(PRInt32(mRefCnt) >= 0, "illegal refcnt");                   \
    NS_ASSERT_OWNINGTHREAD_AND_NOT_CCTHREAD(_class);                            \
    nsrefcnt count =                                                            \
      mRefCnt.incr(NS_CYCLE_COLLECTION_CLASSNAME(_class)::Upcast(this));        \
    NS_LOG_ADDREF(this, count, #_class, sizeof(*this));                         \
    return count;                                                               \
  }
  
  #define NS_IMPL_CYCLE_COLLECTING_RELEASE_WITH_DESTROY(_class, _destroy)       \
  NS_IMETHODIMP_(nsrefcnt) _class::Release(void)                                \
  {                                                                             \
    NS_PRECONDITION(0 != mRefCnt, "dup release");                               \
    NS_ASSERT_OWNINGTHREAD_AND_NOT_CCTHREAD(_class);                            \
    nsISupports *base = NS_CYCLE_COLLECTION_CLASSNAME(_class)::Upcast(this);    \
    nsrefcnt count = mRefCnt.decr(base);                                        \
    NS_LOG_RELEASE(this, count, #_class);                                       \
    if (count == 0) {                                                           \
      NS_ASSERT_OWNINGTHREAD(_class);                                           \
      mRefCnt.stabilizeForDeletion(base);                                       \
      _destroy;                                                                 \
      return 0;                                                                 \
    }                                                                           \
    return count;                                                               \
  }
  
  #define NS_IMPL_CYCLE_COLLECTING_RELEASE(_class)                              \
    NS_IMPL_CYCLE_COLLECTING_RELEASE_WITH_DESTROY(_class, delete (this))
  
  
  ///////////////////////////////////////////////////////////////////////////////
  
  /**
   * There are two ways of implementing QueryInterface, and we use both:
   *
   * Table-driven QueryInterface uses a static table of IID->offset mappings
   * and a shared helper function. Using it tends to reduce codesize and improve
   * runtime performance (due to processor cache hits).
   *
   * Macro-driven QueryInterface generates a QueryInterface function directly
   * using common macros. This is necessary if special QueryInterface features
   * are being used (such as tearoffs and conditional interfaces).
   *
   * These methods can be combined into a table-driven function call followed
   * by custom code for tearoffs and conditionals.
   */
  
  struct QITableEntry
  {
    const nsIID *iid;     // null indicates end of the QITableEntry array
    PROffset32   offset;
  };
  
  NS_COM_GLUE nsresult NS_FASTCALL
  NS_TableDrivenQI(void* aThis, const QITableEntry* entries,
                   REFNSIID aIID, void **aInstancePtr);
  
  /**
   * Implement table-driven queryinterface
   */
  
  #define NS_INTERFACE_TABLE_HEAD(_class)                                       \
  NS_IMETHODIMP _class::QueryInterface(REFNSIID aIID, void** aInstancePtr)      \
  {                                                                             \
    NS_ASSERTION(aInstancePtr,                                                  \
                 "QueryInterface requires a non-NULL destination!");            \
    nsresult rv = NS_ERROR_FAILURE;
  
  #define NS_INTERFACE_TABLE_BEGIN                                              \
    static const QITableEntry table[] = {
  
  #define NS_INTERFACE_TABLE_ENTRY(_class, _interface)                          \
    { &_interface::COMTypeInfo<int>::kIID,                                      \
      PROffset32(reinterpret_cast<char*>(                                       \
                          static_cast<_interface*>((_class*) 0x1000)) -         \
                 reinterpret_cast<char*>((_class*) 0x1000))                     \
    },
  
  #define NS_INTERFACE_TABLE_ENTRY_AMBIGUOUS(_class, _interface, _implClass)    \
    { &_interface::COMTypeInfo<int>::kIID,                                      \
      PROffset32(reinterpret_cast<char*>(                                       \
                          static_cast<_interface*>(                             \
                                         static_cast<_implClass*>(              \
                                                        (_class*) 0x1000))) -   \
                 reinterpret_cast<char*>((_class*) 0x1000))                     \
    },
  
  #define NS_INTERFACE_TABLE_END_WITH_PTR(_ptr)                                 \
    { nsnull, 0 } };                                                            \
    rv = NS_TableDrivenQI(static_cast<void*>(_ptr),                             \
                          table, aIID, aInstancePtr);
  
  #define NS_INTERFACE_TABLE_END                                                \
    NS_INTERFACE_TABLE_END_WITH_PTR(this)
  
  #define NS_INTERFACE_TABLE_TAIL                                               \
    return rv;                                                                  \
  }
  
  #define NS_INTERFACE_TABLE_TAIL_INHERITING(_baseclass)                        \
    if (NS_SUCCEEDED(rv))                                                       \
      return rv;                                                                \
    return _baseclass::QueryInterface(aIID, aInstancePtr);                      \
  }
  
  #define NS_INTERFACE_TABLE_TAIL_USING_AGGREGATOR(_aggregator)                 \
    if (NS_SUCCEEDED(rv))                                                       \
      return rv;                                                                \
    NS_ASSERTION(_aggregator, "null aggregator");                               \
    return _aggregator->QueryInterface(aIID, aInstancePtr)                      \
  }
  
  /**
   * This implements query interface with two assumptions: First, the
   * class in question implements nsISupports and its own interface and
   * nothing else. Second, the implementation of the class's primary
   * inheritance chain leads to its own interface.
   *
   * @param _class The name of the class implementing the method
   * @param _classiiddef The name of the #define symbol that defines the IID
   * for the class (e.g. NS_ISUPPORTS_IID)
   */
  
  #define NS_IMPL_QUERY_HEAD(_class)                                            \
  NS_IMETHODIMP _class::QueryInterface(REFNSIID aIID, void** aInstancePtr)      \
  {                                                                             \
    NS_ASSERTION(aInstancePtr,                                                  \
                 "QueryInterface requires a non-NULL destination!");            \
    nsISupports* foundInterface;
  
  #define NS_IMPL_QUERY_BODY(_interface)                                        \
    if ( aIID.Equals(NS_GET_IID(_interface)) )                                  \
      foundInterface = static_cast<_interface*>(this);                          \
    else
  
  #define NS_IMPL_QUERY_BODY_CONDITIONAL(_interface, condition)                 \
    if ( (condition) && aIID.Equals(NS_GET_IID(_interface)))                    \
      foundInterface = static_cast<_interface*>(this);                          \
    else
  
  #define NS_IMPL_QUERY_BODY_AMBIGUOUS(_interface, _implClass)                  \
    if ( aIID.Equals(NS_GET_IID(_interface)) )                                  \
      foundInterface = static_cast<_interface*>(                                \
                                      static_cast<_implClass*>(this));          \
    else
  
  #define NS_IMPL_QUERY_BODY_AGGREGATED(_interface, _aggregate)                 \
    if ( aIID.Equals(NS_GET_IID(_interface)) )                                  \
      foundInterface = static_cast<_interface*>(_aggregate);                    \
    else
  
  #define NS_IMPL_QUERY_TAIL_GUTS                                               \
      foundInterface = 0;                                                       \
    nsresult status;                                                            \
    if ( !foundInterface )                                                      \
      status = NS_NOINTERFACE;                                                  \
    else                                                                        \
      {                                                                         \
        NS_ADDREF(foundInterface);                                              \
        status = NS_OK;                                                         \
      }                                                                         \
    *aInstancePtr = foundInterface;                                             \
    return status;                                                              \
  }
  
  #define NS_IMPL_QUERY_TAIL_INHERITING(_baseclass)                             \
      foundInterface = 0;                                                       \
    nsresult status;                                                            \
    if ( !foundInterface )                                                      \
      status = _baseclass::QueryInterface(aIID, (void**)&foundInterface);       \
    else                                                                        \
      {                                                                         \
        NS_ADDREF(foundInterface);                                              \
        status = NS_OK;                                                         \
      }                                                                         \
    *aInstancePtr = foundInterface;                                             \
    return status;                                                              \
  }
  
  #define NS_IMPL_QUERY_TAIL_USING_AGGREGATOR(_aggregator)                      \
      foundInterface = 0;                                                       \
    nsresult status;                                                            \
    if ( !foundInterface ) {                                                    \
      NS_ASSERTION(_aggregator, "null aggregator");                             \
      status = _aggregator->QueryInterface(aIID, (void**)&foundInterface);      \
    } else                                                                      \
      {                                                                         \
        NS_ADDREF(foundInterface);                                              \
        status = NS_OK;                                                         \
      }                                                                         \
    *aInstancePtr = foundInterface;                                             \
    return status;                                                              \
  }
  
  #define NS_IMPL_QUERY_TAIL(_supports_interface)                               \
    NS_IMPL_QUERY_BODY_AMBIGUOUS(nsISupports, _supports_interface)              \
    NS_IMPL_QUERY_TAIL_GUTS
  
  
    /*
      This is the new scheme.  Using this notation now will allow us to switch to
      a table driven mechanism when it's ready.  Note the difference between this
      and the (currently) underlying NS_IMPL_QUERY_INTERFACE mechanism.  You must
      explicitly mention |nsISupports| when using the interface maps.
    */
  #define NS_INTERFACE_MAP_BEGIN(_implClass)      NS_IMPL_QUERY_HEAD(_implClass)
  #define NS_INTERFACE_MAP_ENTRY(_interface)      NS_IMPL_QUERY_BODY(_interface)
  #define NS_INTERFACE_MAP_ENTRY_CONDITIONAL(_interface, condition)             \
    NS_IMPL_QUERY_BODY_CONDITIONAL(_interface, condition)
  #define NS_INTERFACE_MAP_ENTRY_AGGREGATED(_interface,_aggregate)              \
    NS_IMPL_QUERY_BODY_AGGREGATED(_interface,_aggregate)
  
  #define NS_INTERFACE_MAP_END                    NS_IMPL_QUERY_TAIL_GUTS
  #define NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(_interface, _implClass)              \
    NS_IMPL_QUERY_BODY_AMBIGUOUS(_interface, _implClass)
  #define NS_INTERFACE_MAP_END_INHERITING(_baseClass)                           \
    NS_IMPL_QUERY_TAIL_INHERITING(_baseClass)
  #define NS_INTERFACE_MAP_END_AGGREGATED(_aggregator)                          \
    NS_IMPL_QUERY_TAIL_USING_AGGREGATOR(_aggregator)
  
  #define NS_INTERFACE_TABLE0(_class)                                           \
    NS_INTERFACE_TABLE_BEGIN                                                    \
      NS_INTERFACE_TABLE_ENTRY(_class, nsISupports)                             \
    NS_INTERFACE_TABLE_END
  
  #define NS_INTERFACE_TABLE1(_class, _i1)                                      \
    NS_INTERFACE_TABLE_BEGIN                                                    \
      NS_INTERFACE_TABLE_ENTRY(_class, _i1)                                     \
      NS_INTERFACE_TABLE_ENTRY_AMBIGUOUS(_class, nsISupports, _i1)              \
    NS_INTERFACE_TABLE_END
  
  #define NS_INTERFACE_TABLE2(_class, _i1, _i2)                                 \
    NS_INTERFACE_TABLE_BEGIN                                                    \
      NS_INTERFACE_TABLE_ENTRY(_class, _i1)                                     \
      NS_INTERFACE_TABLE_ENTRY(_class, _i2)                                     \
      NS_INTERFACE_TABLE_ENTRY_AMBIGUOUS(_class, nsISupports, _i1)              \
    NS_INTERFACE_TABLE_END
  
  #define NS_INTERFACE_TABLE3(_class, _i1, _i2, _i3)                            \
    NS_INTERFACE_TABLE_BEGIN                                                    \
      NS_INTERFACE_TABLE_ENTRY(_class, _i1)                                     \
      NS_INTERFACE_TABLE_ENTRY(_class, _i2)                                     \
      NS_INTERFACE_TABLE_ENTRY(_class, _i3)                                     \
      NS_INTERFACE_TABLE_ENTRY_AMBIGUOUS(_class, nsISupports, _i1)              \
    NS_INTERFACE_TABLE_END
  
  #define NS_INTERFACE_TABLE4(_class, _i1, _i2, _i3, _i4)                       \
    NS_INTERFACE_TABLE_BEGIN                                                    \
      NS_INTERFACE_TABLE_ENTRY(_class, _i1)                                     \
      NS_INTERFACE_TABLE_ENTRY(_class, _i2)                                     \
      NS_INTERFACE_TABLE_ENTRY(_class, _i3)                                     \
      NS_INTERFACE_TABLE_ENTRY(_class, _i4)                                     \
      NS_INTERFACE_TABLE_ENTRY_AMBIGUOUS(_class, nsISupports, _i1)              \
    NS_INTERFACE_TABLE_END
  
  #define NS_INTERFACE_TABLE5(_class, _i1, _i2, _i3, _i4, _i5)                  \
    NS_INTERFACE_TABLE_BEGIN                                                    \
      NS_INTERFACE_TABLE_ENTRY(_class, _i1)                                     \
      NS_INTERFACE_TABLE_ENTRY(_class, _i2)                                     \
      NS_INTERFACE_TABLE_ENTRY(_class, _i3)                                     \
      NS_INTERFACE_TABLE_ENTRY(_class, _i4)                                     \
      NS_INTERFACE_TABLE_ENTRY(_class, _i5)                                     \
      NS_INTERFACE_TABLE_ENTRY_AMBIGUOUS(_class, nsISupports, _i1)              \
    NS_INTERFACE_TABLE_END
  
  #define NS_INTERFACE_TABLE6(_class, _i1, _i2, _i3, _i4, _i5, _i6)             \
    NS_INTERFACE_TABLE_BEGIN                                                    \
      NS_INTERFACE_TABLE_ENTRY(_class, _i1)                                     \
      NS_INTERFACE_TABLE_ENTRY(_class, _i2)                                     \
      NS_INTERFACE_TABLE_ENTRY(_class, _i3)                                     \
      NS_INTERFACE_TABLE_ENTRY(_class, _i4)                                     \
      NS_INTERFACE_TABLE_ENTRY(_class, _i5)                                     \
      NS_INTERFACE_TABLE_ENTRY(_class, _i6)                                     \
      NS_INTERFACE_TABLE_ENTRY_AMBIGUOUS(_class, nsISupports, _i1)              \
    NS_INTERFACE_TABLE_END
  
  #define NS_INTERFACE_TABLE7(_class, _i1, _i2, _i3, _i4, _i5, _i6, _i7)        \
    NS_INTERFACE_TABLE_BEGIN                                                    \
      NS_INTERFACE_TABLE_ENTRY(_class, _i1)                                     \
      NS_INTERFACE_TABLE_ENTRY(_class, _i2)                                     \
      NS_INTERFACE_TABLE_ENTRY(_class, _i3)                                     \
      NS_INTERFACE_TABLE_ENTRY(_class, _i4)                                     \
      NS_INTERFACE_TABLE_ENTRY(_class, _i5)                                     \
      NS_INTERFACE_TABLE_ENTRY(_class, _i6)                                     \
      NS_INTERFACE_TABLE_ENTRY(_class, _i7)                                     \
      NS_INTERFACE_TABLE_ENTRY_AMBIGUOUS(_class, nsISupports, _i1)              \
    NS_INTERFACE_TABLE_END
  
  #define NS_INTERFACE_TABLE8(_class, _i1, _i2, _i3, _i4, _i5, _i6, _i7, _i8)   \
    NS_INTERFACE_TABLE_BEGIN                                                    \
      NS_INTERFACE_TABLE_ENTRY(_class, _i1)                                     \
      NS_INTERFACE_TABLE_ENTRY(_class, _i2)                                     \
      NS_INTERFACE_TABLE_ENTRY(_class, _i3)                                     \
      NS_INTERFACE_TABLE_ENTRY(_class, _i4)                                     \
      NS_INTERFACE_TABLE_ENTRY(_class, _i5)                                     \
      NS_INTERFACE_TABLE_ENTRY(_class, _i6)                                     \
      NS_INTERFACE_TABLE_ENTRY(_class, _i7)                                     \
      NS_INTERFACE_TABLE_ENTRY(_class, _i8)                                     \
      NS_INTERFACE_TABLE_ENTRY_AMBIGUOUS(_class, nsISupports, _i1)              \
    NS_INTERFACE_TABLE_END
  
  #define NS_INTERFACE_TABLE9(_class, _i1, _i2, _i3, _i4, _i5, _i6, _i7,        \
                              _i8, _i9)                                         \
    NS_INTERFACE_TABLE_BEGIN                                                    \
      NS_INTERFACE_TABLE_ENTRY(_class, _i1)                                     \
      NS_INTERFACE_TABLE_ENTRY(_class, _i2)                                     \
      NS_INTERFACE_TABLE_ENTRY(_class, _i3)                                     \
      NS_INTERFACE_TABLE_ENTRY(_class, _i4)                                     \
      NS_INTERFACE_TABLE_ENTRY(_class, _i5)                                     \
      NS_INTERFACE_TABLE_ENTRY(_class, _i6)                                     \
      NS_INTERFACE_TABLE_ENTRY(_class, _i7)                                     \
      NS_INTERFACE_TABLE_ENTRY(_class, _i8)                                     \
      NS_INTERFACE_TABLE_ENTRY(_class, _i9)                                     \
      NS_INTERFACE_TABLE_ENTRY_AMBIGUOUS(_class, nsISupports, _i1)              \
    NS_INTERFACE_TABLE_END
  
  #define NS_INTERFACE_TABLE10(_class, _i1, _i2, _i3, _i4, _i5, _i6, _i7,       \
                               _i8, _i9, _i10)                                  \
    NS_INTERFACE_TABLE_BEGIN                                                    \
      NS_INTERFACE_TABLE_ENTRY(_class, _i1)                                     \
      NS_INTERFACE_TABLE_ENTRY(_class, _i2)                                     \
      NS_INTERFACE_TABLE_ENTRY(_class, _i3)                                     \
      NS_INTERFACE_TABLE_ENTRY(_class, _i4)                                     \
      NS_INTERFACE_TABLE_ENTRY(_class, _i5)                                     \
      NS_INTERFACE_TABLE_ENTRY(_class, _i6)                                     \
      NS_INTERFACE_TABLE_ENTRY(_class, _i7)                                     \
      NS_INTERFACE_TABLE_ENTRY(_class, _i8)                                     \
      NS_INTERFACE_TABLE_ENTRY(_class, _i9)                                     \
      NS_INTERFACE_TABLE_ENTRY(_class, _i10)                                    \
      NS_INTERFACE_TABLE_ENTRY_AMBIGUOUS(_class, nsISupports, _i1)              \
    NS_INTERFACE_TABLE_END
  
  #define NS_INTERFACE_TABLE11(_class, _i1, _i2, _i3, _i4, _i5, _i6, _i7,       \
                               _i8, _i9, _i10, _i11)                            \
    NS_INTERFACE_TABLE_BEGIN                                                    \
      NS_INTERFACE_TABLE_ENTRY(_class, _i1)                                     \
      NS_INTERFACE_TABLE_ENTRY(_class, _i2)                                     \
      NS_INTERFACE_TABLE_ENTRY(_class, _i3)                                     \
      NS_INTERFACE_TABLE_ENTRY(_class, _i4)                                     \
      NS_INTERFACE_TABLE_ENTRY(_class, _i5)                                     \
      NS_INTERFACE_TABLE_ENTRY(_class, _i6)                                     \
      NS_INTERFACE_TABLE_ENTRY(_class, _i7)                                     \
      NS_INTERFACE_TABLE_ENTRY(_class, _i8)                                     \
      NS_INTERFACE_TABLE_ENTRY(_class, _i9)                                     \
      NS_INTERFACE_TABLE_ENTRY(_class, _i10)                                    \
      NS_INTERFACE_TABLE_ENTRY(_class, _i11)                                    \
      NS_INTERFACE_TABLE_ENTRY_AMBIGUOUS(_class, nsISupports, _i1)              \
    NS_INTERFACE_TABLE_END
  
  #define NS_IMPL_QUERY_INTERFACE0(_class)                                      \
    NS_INTERFACE_TABLE_HEAD(_class)                                             \
    NS_INTERFACE_TABLE0(_class)                                                 \
    NS_INTERFACE_TABLE_TAIL
  
  #define NS_IMPL_QUERY_INTERFACE1(_class, _i1)                                 \
    NS_INTERFACE_TABLE_HEAD(_class)                                             \
    NS_INTERFACE_TABLE1(_class, _i1)                                            \
    NS_INTERFACE_TABLE_TAIL
  
  #define NS_IMPL_QUERY_INTERFACE2(_class, _i1, _i2)                            \
    NS_INTERFACE_TABLE_HEAD(_class)                                             \
    NS_INTERFACE_TABLE2(_class, _i1, _i2)                                       \
    NS_INTERFACE_TABLE_TAIL
  
  #define NS_IMPL_QUERY_INTERFACE3(_class, _i1, _i2, _i3)                       \
    NS_INTERFACE_TABLE_HEAD(_class)                                             \
    NS_INTERFACE_TABLE3(_class, _i1, _i2, _i3)                                  \
    NS_INTERFACE_TABLE_TAIL
  
  #define NS_IMPL_QUERY_INTERFACE4(_class, _i1, _i2, _i3, _i4)                  \
    NS_INTERFACE_TABLE_HEAD(_class)                                             \
    NS_INTERFACE_TABLE4(_class, _i1, _i2, _i3, _i4)                             \
    NS_INTERFACE_TABLE_TAIL
  
  #define NS_IMPL_QUERY_INTERFACE5(_class, _i1, _i2, _i3, _i4, _i5)             \
    NS_INTERFACE_TABLE_HEAD(_class)                                             \
    NS_INTERFACE_TABLE5(_class, _i1, _i2, _i3, _i4, _i5)                        \
    NS_INTERFACE_TABLE_TAIL
  
  #define NS_IMPL_QUERY_INTERFACE6(_class, _i1, _i2, _i3, _i4, _i5, _i6)        \
    NS_INTERFACE_TABLE_HEAD(_class)                                             \
    NS_INTERFACE_TABLE6(_class, _i1, _i2, _i3, _i4, _i5, _i6)                   \
    NS_INTERFACE_TABLE_TAIL
  
  #define NS_IMPL_QUERY_INTERFACE7(_class, _i1, _i2, _i3, _i4, _i5, _i6, _i7)   \
    NS_INTERFACE_TABLE_HEAD(_class)                                             \
    NS_INTERFACE_TABLE7(_class, _i1, _i2, _i3, _i4, _i5, _i6, _i7)              \
    NS_INTERFACE_TABLE_TAIL
  
  #define NS_IMPL_QUERY_INTERFACE8(_class, _i1, _i2, _i3, _i4, _i5, _i6,        \
                                   _i7, _i8)                                    \
    NS_INTERFACE_TABLE_HEAD(_class)                                             \
    NS_INTERFACE_TABLE8(_class, _i1, _i2, _i3, _i4, _i5, _i6, _i7, _i8)         \
    NS_INTERFACE_TABLE_TAIL
  
  #define NS_IMPL_QUERY_INTERFACE9(_class, _i1, _i2, _i3, _i4, _i5, _i6,        \
                                   _i7, _i8, _i9)                               \
    NS_INTERFACE_TABLE_HEAD(_class)                                             \
    NS_INTERFACE_TABLE9(_class, _i1, _i2, _i3, _i4, _i5, _i6, _i7, _i8, _i9)    \
    NS_INTERFACE_TABLE_TAIL
  
  #define NS_IMPL_QUERY_INTERFACE10(_class, _i1, _i2, _i3, _i4, _i5, _i6,       \
                                    _i7, _i8, _i9, _i10)                        \
    NS_INTERFACE_TABLE_HEAD(_class)                                             \
    NS_INTERFACE_TABLE10(_class, _i1, _i2, _i3, _i4, _i5, _i6, _i7, _i8,        \
                         _i9, _i10)                                             \
    NS_INTERFACE_TABLE_TAIL
  
  #define NS_IMPL_QUERY_INTERFACE11(_class, _i1, _i2, _i3, _i4, _i5, _i6,       \
                                    _i7, _i8, _i9, _i10, _i11)                  \
    NS_INTERFACE_TABLE_HEAD(_class)                                             \
    NS_INTERFACE_TABLE11(_class, _i1, _i2, _i3, _i4, _i5, _i6, _i7, _i8,        \
                         _i9, _i10, _i11)                                       \
    NS_INTERFACE_TABLE_TAIL
  
  
  #define NS_IMPL_THREADSAFE_QUERY_INTERFACE0  NS_IMPL_QUERY_INTERFACE0
  #define NS_IMPL_THREADSAFE_QUERY_INTERFACE1  NS_IMPL_QUERY_INTERFACE1
  #define NS_IMPL_THREADSAFE_QUERY_INTERFACE2  NS_IMPL_QUERY_INTERFACE2
  #define NS_IMPL_THREADSAFE_QUERY_INTERFACE3  NS_IMPL_QUERY_INTERFACE3
  #define NS_IMPL_THREADSAFE_QUERY_INTERFACE4  NS_IMPL_QUERY_INTERFACE4
  #define NS_IMPL_THREADSAFE_QUERY_INTERFACE5  NS_IMPL_QUERY_INTERFACE5
  #define NS_IMPL_THREADSAFE_QUERY_INTERFACE6  NS_IMPL_QUERY_INTERFACE6
  #define NS_IMPL_THREADSAFE_QUERY_INTERFACE7  NS_IMPL_QUERY_INTERFACE7
  #define NS_IMPL_THREADSAFE_QUERY_INTERFACE8  NS_IMPL_QUERY_INTERFACE8
  #define NS_IMPL_THREADSAFE_QUERY_INTERFACE9  NS_IMPL_QUERY_INTERFACE9
  #define NS_IMPL_THREADSAFE_QUERY_INTERFACE10  NS_IMPL_QUERY_INTERFACE10
  #define NS_IMPL_THREADSAFE_QUERY_INTERFACE11  NS_IMPL_QUERY_INTERFACE11
  
  /**
   * Declare that you're going to inherit from something that already
   * implements nsISupports, but also implements an additional interface, thus
   * causing an ambiguity. In this case you don't need another mRefCnt, you
   * just need to forward the definitions to the appropriate superclass. E.g.
   *
   * class Bar : public Foo, public nsIBar {  // both provide nsISupports
   * public:
   *   NS_DECL_ISUPPORTS_INHERITED
   *   ...other nsIBar and Bar methods...
   * };
   */
  #define NS_DECL_ISUPPORTS_INHERITED                                           \
  public:                                                                       \
    NS_IMETHOD QueryInterface(REFNSIID aIID,                                    \
                              void** aInstancePtr);                             \
    NS_IMETHOD_(nsrefcnt) AddRef(void);                                         \
    NS_IMETHOD_(nsrefcnt) Release(void);                                        \
  
  /**
   * These macros can be used in conjunction with NS_DECL_ISUPPORTS_INHERITED
   * to implement the nsISupports methods, forwarding the invocations to a
   * superclass that already implements nsISupports.
   *
   * Note that I didn't make these inlined because they're virtual methods.
   */
  
  #define NS_IMPL_ADDREF_INHERITED(Class, Super)                                \
  NS_IMETHODIMP_(nsrefcnt) Class::AddRef(void)                                  \
  {                                                                             \
    nsrefcnt r = Super::AddRef();                                               \
    NS_LOG_ADDREF(this, r, #Class, sizeof(*this));                              \
    return r;                                                                   \
  }
  
  #define NS_IMPL_RELEASE_INHERITED(Class, Super)                               \
  NS_IMETHODIMP_(nsrefcnt) Class::Release(void)                                 \
  {                                                                             \
    nsrefcnt r = Super::Release();                                              \
    NS_LOG_RELEASE(this, r, #Class);                                            \
    return r;                                                                   \
  }
  
  /**
   * As above but not logging the addref/release; needed if the base
   * class might be aggregated.
   */
  #define NS_IMPL_NONLOGGING_ADDREF_INHERITED(Class, Super)                     \
  NS_IMETHODIMP_(nsrefcnt) Class::AddRef(void)                                  \
  {                                                                             \
    return Super::AddRef();                                                     \
  }
  
  #define NS_IMPL_NONLOGGING_RELEASE_INHERITED(Class, Super)                    \
  NS_IMETHODIMP_(nsrefcnt) Class::Release(void)                                 \
  {                                                                             \
    return Super::Release();                                                    \
  }
  
  #define NS_INTERFACE_TABLE_INHERITED0(Class) /* Nothing to do here */
  
  #define NS_INTERFACE_TABLE_INHERITED1(Class, i1)                              \
    NS_INTERFACE_TABLE_BEGIN                                                    \
      NS_INTERFACE_TABLE_ENTRY(Class, i1)                                       \
    NS_INTERFACE_TABLE_END
  
  #define NS_INTERFACE_TABLE_INHERITED2(Class, i1, i2)                          \
    NS_INTERFACE_TABLE_BEGIN                                                    \
      NS_INTERFACE_TABLE_ENTRY(Class, i1)                                       \
      NS_INTERFACE_TABLE_ENTRY(Class, i2)                                       \
    NS_INTERFACE_TABLE_END
  
  #define NS_INTERFACE_TABLE_INHERITED3(Class, i1, i2, i3)                      \
    NS_INTERFACE_TABLE_BEGIN                                                    \
      NS_INTERFACE_TABLE_ENTRY(Class, i1)                                       \
      NS_INTERFACE_TABLE_ENTRY(Class, i2)                                       \
      NS_INTERFACE_TABLE_ENTRY(Class, i3)                                       \
    NS_INTERFACE_TABLE_END
  
  #define NS_INTERFACE_TABLE_INHERITED4(Class, i1, i2, i3, i4)                  \
    NS_INTERFACE_TABLE_BEGIN                                                    \
      NS_INTERFACE_TABLE_ENTRY(Class, i1)                                       \
      NS_INTERFACE_TABLE_ENTRY(Class, i2)                                       \
      NS_INTERFACE_TABLE_ENTRY(Class, i3)                                       \
      NS_INTERFACE_TABLE_ENTRY(Class, i4)                                       \
    NS_INTERFACE_TABLE_END
  
  #define NS_INTERFACE_TABLE_INHERITED5(Class, i1, i2, i3, i4, i5)              \
    NS_INTERFACE_TABLE_BEGIN                                                    \
      NS_INTERFACE_TABLE_ENTRY(Class, i1)                                       \
      NS_INTERFACE_TABLE_ENTRY(Class, i2)                                       \
      NS_INTERFACE_TABLE_ENTRY(Class, i3)                                       \
      NS_INTERFACE_TABLE_ENTRY(Class, i4)                                       \
      NS_INTERFACE_TABLE_ENTRY(Class, i5)                                       \
    NS_INTERFACE_TABLE_END
  
  #define NS_INTERFACE_TABLE_INHERITED6(Class, i1, i2, i3, i4, i5, i6)          \
    NS_INTERFACE_TABLE_BEGIN                                                    \
      NS_INTERFACE_TABLE_ENTRY(Class, i1)                                       \
      NS_INTERFACE_TABLE_ENTRY(Class, i2)                                       \
      NS_INTERFACE_TABLE_ENTRY(Class, i3)                                       \
      NS_INTERFACE_TABLE_ENTRY(Class, i4)                                       \
      NS_INTERFACE_TABLE_ENTRY(Class, i5)                                       \
      NS_INTERFACE_TABLE_ENTRY(Class, i6)                                       \
    NS_INTERFACE_TABLE_END
  
  #define NS_INTERFACE_TABLE_INHERITED7(Class, i1, i2, i3, i4, i5, i6, i7)      \
    NS_INTERFACE_TABLE_BEGIN                                                    \
      NS_INTERFACE_TABLE_ENTRY(Class, i1)                                       \
      NS_INTERFACE_TABLE_ENTRY(Class, i2)                                       \
      NS_INTERFACE_TABLE_ENTRY(Class, i3)                                       \
      NS_INTERFACE_TABLE_ENTRY(Class, i4)                                       \
      NS_INTERFACE_TABLE_ENTRY(Class, i5)                                       \
      NS_INTERFACE_TABLE_ENTRY(Class, i6)                                       \
      NS_INTERFACE_TABLE_ENTRY(Class, i7)                                       \
    NS_INTERFACE_TABLE_END
  
  #define NS_INTERFACE_TABLE_INHERITED8(Class, i1, i2, i3, i4, i5, i6, i7, i8)  \
    NS_INTERFACE_TABLE_BEGIN                                                    \
      NS_INTERFACE_TABLE_ENTRY(Class, i1)                                       \
      NS_INTERFACE_TABLE_ENTRY(Class, i2)                                       \
      NS_INTERFACE_TABLE_ENTRY(Class, i3)                                       \
      NS_INTERFACE_TABLE_ENTRY(Class, i4)                                       \
      NS_INTERFACE_TABLE_ENTRY(Class, i5)                                       \
      NS_INTERFACE_TABLE_ENTRY(Class, i6)                                       \
      NS_INTERFACE_TABLE_ENTRY(Class, i7)                                       \
      NS_INTERFACE_TABLE_ENTRY(Class, i8)                                       \
    NS_INTERFACE_TABLE_END
  
  #define NS_INTERFACE_TABLE_INHERITED9(Class, i1, i2, i3, i4, i5, i6, i7,      \
                                        i8, i9)                                 \
    NS_INTERFACE_TABLE_BEGIN                                                    \
      NS_INTERFACE_TABLE_ENTRY(Class, i1)                                       \
      NS_INTERFACE_TABLE_ENTRY(Class, i2)                                       \
      NS_INTERFACE_TABLE_ENTRY(Class, i3)                                       \
      NS_INTERFACE_TABLE_ENTRY(Class, i4)                                       \
      NS_INTERFACE_TABLE_ENTRY(Class, i5)                                       \
      NS_INTERFACE_TABLE_ENTRY(Class, i6)                                       \
      NS_INTERFACE_TABLE_ENTRY(Class, i7)                                       \
      NS_INTERFACE_TABLE_ENTRY(Class, i8)                                       \
      NS_INTERFACE_TABLE_ENTRY(Class, i9)                                       \
    NS_INTERFACE_TABLE_END
  
  #define NS_INTERFACE_TABLE_INHERITED10(Class, i1, i2, i3, i4, i5, i6, i7,     \
                                        i8, i9, i10)                            \
    NS_INTERFACE_TABLE_BEGIN                                                    \
      NS_INTERFACE_TABLE_ENTRY(Class, i1)                                       \
      NS_INTERFACE_TABLE_ENTRY(Class, i2)                                       \
      NS_INTERFACE_TABLE_ENTRY(Class, i3)                                       \
      NS_INTERFACE_TABLE_ENTRY(Class, i4)                                       \
      NS_INTERFACE_TABLE_ENTRY(Class, i5)                                       \
      NS_INTERFACE_TABLE_ENTRY(Class, i6)                                       \
      NS_INTERFACE_TABLE_ENTRY(Class, i7)                                       \
      NS_INTERFACE_TABLE_ENTRY(Class, i8)                                       \
      NS_INTERFACE_TABLE_ENTRY(Class, i9)                                       \
      NS_INTERFACE_TABLE_ENTRY(Class, i10)                                      \
    NS_INTERFACE_TABLE_END
  
  #define NS_INTERFACE_TABLE_INHERITED11(Class, i1, i2, i3, i4, i5, i6, i7,     \
                                        i8, i9, i10, i11)                       \
    NS_INTERFACE_TABLE_BEGIN                                                    \
      NS_INTERFACE_TABLE_ENTRY(Class, i1)                                       \
      NS_INTERFACE_TABLE_ENTRY(Class, i2)                                       \
      NS_INTERFACE_TABLE_ENTRY(Class, i3)                                       \
      NS_INTERFACE_TABLE_ENTRY(Class, i4)                                       \
      NS_INTERFACE_TABLE_ENTRY(Class, i5)                                       \
      NS_INTERFACE_TABLE_ENTRY(Class, i6)                                       \
      NS_INTERFACE_TABLE_ENTRY(Class, i7)                                       \
      NS_INTERFACE_TABLE_ENTRY(Class, i8)                                       \
      NS_INTERFACE_TABLE_ENTRY(Class, i9)                                       \
      NS_INTERFACE_TABLE_ENTRY(Class, i10)                                      \
      NS_INTERFACE_TABLE_ENTRY(Class, i11)                                      \
    NS_INTERFACE_TABLE_END
  
  #define NS_INTERFACE_TABLE_INHERITED12(Class, i1, i2, i3, i4, i5, i6, i7,     \
                                        i8, i9, i10, i11, i12)                  \
    NS_INTERFACE_TABLE_BEGIN                                                    \
      NS_INTERFACE_TABLE_ENTRY(Class, i1)                                       \
      NS_INTERFACE_TABLE_ENTRY(Class, i2)                                       \
      NS_INTERFACE_TABLE_ENTRY(Class, i3)                                       \
      NS_INTERFACE_TABLE_ENTRY(Class, i4)                                       \
      NS_INTERFACE_TABLE_ENTRY(Class, i5)                                       \
      NS_INTERFACE_TABLE_ENTRY(Class, i6)                                       \
      NS_INTERFACE_TABLE_ENTRY(Class, i7)                                       \
      NS_INTERFACE_TABLE_ENTRY(Class, i8)                                       \
      NS_INTERFACE_TABLE_ENTRY(Class, i9)                                       \
      NS_INTERFACE_TABLE_ENTRY(Class, i10)                                      \
      NS_INTERFACE_TABLE_ENTRY(Class, i11)                                      \
      NS_INTERFACE_TABLE_ENTRY(Class, i12)                                      \
    NS_INTERFACE_TABLE_END
  
  #define NS_IMPL_QUERY_INTERFACE_INHERITED0(Class, Super)                      \
    NS_INTERFACE_TABLE_HEAD(Class)                                              \
    NS_INTERFACE_TABLE_INHERITED0(Class)                                        \
    NS_INTERFACE_TABLE_TAIL_INHERITING(Super)
  
  #define NS_IMPL_QUERY_INTERFACE_INHERITED1(Class, Super, i1)                  \
    NS_INTERFACE_TABLE_HEAD(Class)                                              \
    NS_INTERFACE_TABLE_INHERITED1(Class, i1)                                    \
    NS_INTERFACE_TABLE_TAIL_INHERITING(Super)
  
  #define NS_IMPL_QUERY_INTERFACE_INHERITED2(Class, Super, i1, i2)              \
    NS_INTERFACE_TABLE_HEAD(Class)                                              \
    NS_INTERFACE_TABLE_INHERITED2(Class, i1, i2)                                \
    NS_INTERFACE_TABLE_TAIL_INHERITING(Super)
  
  #define NS_IMPL_QUERY_INTERFACE_INHERITED3(Class, Super, i1, i2, i3)          \
    NS_INTERFACE_TABLE_HEAD(Class)                                              \
    NS_INTERFACE_TABLE_INHERITED3(Class, i1, i2, i3)                            \
    NS_INTERFACE_TABLE_TAIL_INHERITING(Super)
  
  #define NS_IMPL_QUERY_INTERFACE_INHERITED4(Class, Super, i1, i2, i3, i4)      \
    NS_INTERFACE_TABLE_HEAD(Class)                                              \
    NS_INTERFACE_TABLE_INHERITED4(Class, i1, i2, i3, i4)                        \
    NS_INTERFACE_TABLE_TAIL_INHERITING(Super)
  
  #define NS_IMPL_QUERY_INTERFACE_INHERITED5(Class,Super,i1,i2,i3,i4,i5)        \
    NS_INTERFACE_TABLE_HEAD(Class)                                              \
    NS_INTERFACE_TABLE_INHERITED5(Class, i1, i2, i3, i4, i5)                    \
    NS_INTERFACE_TABLE_TAIL_INHERITING(Super)
  
  #define NS_IMPL_QUERY_INTERFACE_INHERITED6(Class,Super,i1,i2,i3,i4,i5,i6)     \
    NS_INTERFACE_TABLE_HEAD(Class)                                              \
    NS_INTERFACE_TABLE_INHERITED6(Class, i1, i2, i3, i4, i5, i6)                \
    NS_INTERFACE_TABLE_TAIL_INHERITING(Super)
  
  #define NS_IMPL_QUERY_INTERFACE_INHERITED7(Class,Super,i1,i2,i3,i4,i5,i6,i7)  \
    NS_INTERFACE_TABLE_HEAD(Class)                                              \
    NS_INTERFACE_TABLE_INHERITED7(Class, i1, i2, i3, i4, i5, i6, i7)            \
    NS_INTERFACE_TABLE_TAIL_INHERITING(Super)
  
  #define NS_IMPL_QUERY_INTERFACE_INHERITED8(Class,Super,i1,i2,i3,i4,i5,i6,     \
                                             i7,i8)                             \
    NS_INTERFACE_TABLE_HEAD(Class)                                              \
    NS_INTERFACE_TABLE_INHERITED8(Class, i1, i2, i3, i4, i5, i6, i7, i8)        \
    NS_INTERFACE_TABLE_TAIL_INHERITING(Super)
  
  #define NS_IMPL_QUERY_INTERFACE_INHERITED9(Class,Super,i1,i2,i3,i4,i5,i6,     \
                                             i7,i8,i9)                          \
    NS_INTERFACE_TABLE_HEAD(Class)                                              \
    NS_INTERFACE_TABLE_INHERITED9(Class, i1, i2, i3, i4, i5, i6, i7, i8, i9)    \
    NS_INTERFACE_TABLE_TAIL_INHERITING(Super)
  
  /**
   * Convenience macros for implementing all nsISupports methods for
   * a simple class.
   * @param _class The name of the class implementing the method
   * @param _classiiddef The name of the #define symbol that defines the IID
   * for the class (e.g. NS_ISUPPORTS_IID)
   */
  
  #define NS_IMPL_ISUPPORTS0(_class)                                            \
    NS_IMPL_ADDREF(_class)                                                      \
    NS_IMPL_RELEASE(_class)                                                     \
    NS_IMPL_QUERY_INTERFACE0(_class)
  
  #define NS_IMPL_ISUPPORTS1(_class, _interface)                                \
    NS_IMPL_ADDREF(_class)                                                      \
    NS_IMPL_RELEASE(_class)                                                     \
    NS_IMPL_QUERY_INTERFACE1(_class, _interface)
  
  #define NS_IMPL_ISUPPORTS2(_class, _i1, _i2)                                  \
    NS_IMPL_ADDREF(_class)                                                      \
    NS_IMPL_RELEASE(_class)                                                     \
    NS_IMPL_QUERY_INTERFACE2(_class, _i1, _i2)
  
  #define NS_IMPL_ISUPPORTS3(_class, _i1, _i2, _i3)                             \
    NS_IMPL_ADDREF(_class)                                                      \
    NS_IMPL_RELEASE(_class)                                                     \
    NS_IMPL_QUERY_INTERFACE3(_class, _i1, _i2, _i3)
  
  #define NS_IMPL_ISUPPORTS4(_class, _i1, _i2, _i3, _i4)                        \
    NS_IMPL_ADDREF(_class)                                                      \
    NS_IMPL_RELEASE(_class)                                                     \
    NS_IMPL_QUERY_INTERFACE4(_class, _i1, _i2, _i3, _i4)
  
  #define NS_IMPL_ISUPPORTS5(_class, _i1, _i2, _i3, _i4, _i5)                   \
    NS_IMPL_ADDREF(_class)                                                      \
    NS_IMPL_RELEASE(_class)                                                     \
    NS_IMPL_QUERY_INTERFACE5(_class, _i1, _i2, _i3, _i4, _i5)
  
  #define NS_IMPL_ISUPPORTS6(_class, _i1, _i2, _i3, _i4, _i5, _i6)              \
    NS_IMPL_ADDREF(_class)                                                      \
    NS_IMPL_RELEASE(_class)                                                     \
    NS_IMPL_QUERY_INTERFACE6(_class, _i1, _i2, _i3, _i4, _i5, _i6)
  
  #define NS_IMPL_ISUPPORTS7(_class, _i1, _i2, _i3, _i4, _i5, _i6, _i7)         \
    NS_IMPL_ADDREF(_class)                                                      \
    NS_IMPL_RELEASE(_class)                                                     \
    NS_IMPL_QUERY_INTERFACE7(_class, _i1, _i2, _i3, _i4, _i5, _i6, _i7)
  
  #define NS_IMPL_ISUPPORTS8(_class, _i1, _i2, _i3, _i4, _i5, _i6, _i7, _i8)    \
    NS_IMPL_ADDREF(_class)                                                      \
    NS_IMPL_RELEASE(_class)                                                     \
    NS_IMPL_QUERY_INTERFACE8(_class, _i1, _i2, _i3, _i4, _i5, _i6, _i7, _i8)
  
  #define NS_IMPL_ISUPPORTS9(_class, _i1, _i2, _i3, _i4, _i5, _i6, _i7, _i8,    \
                             _i9)                                               \
    NS_IMPL_ADDREF(_class)                                                      \
    NS_IMPL_RELEASE(_class)                                                     \
    NS_IMPL_QUERY_INTERFACE9(_class, _i1, _i2, _i3, _i4, _i5, _i6, _i7, _i8, _i9)
  
  #define NS_IMPL_ISUPPORTS10(_class, _i1, _i2, _i3, _i4, _i5, _i6, _i7, _i8,   \
                              _i9, _i10)                                        \
    NS_IMPL_ADDREF(_class)                                                      \
    NS_IMPL_RELEASE(_class)                                                     \
    NS_IMPL_QUERY_INTERFACE10(_class, _i1, _i2, _i3, _i4, _i5, _i6, _i7, _i8,   \
                              _i9, _i10)
  
  #define NS_IMPL_ISUPPORTS11(_class, _i1, _i2, _i3, _i4, _i5, _i6, _i7, _i8,   \
                              _i9, _i10, _i11)                                  \
    NS_IMPL_ADDREF(_class)                                                      \
    NS_IMPL_RELEASE(_class)                                                     \
    NS_IMPL_QUERY_INTERFACE11(_class, _i1, _i2, _i3, _i4, _i5, _i6, _i7, _i8,   \
                              _i9, _i10, _i11)
  
  #define NS_IMPL_ISUPPORTS_INHERITED0(Class, Super)                            \
      NS_IMPL_QUERY_INTERFACE_INHERITED0(Class, Super)                          \
      NS_IMPL_ADDREF_INHERITED(Class, Super)                                    \
      NS_IMPL_RELEASE_INHERITED(Class, Super)                                   \
  
  #define NS_IMPL_ISUPPORTS_INHERITED1(Class, Super, i1)                        \
      NS_IMPL_QUERY_INTERFACE_INHERITED1(Class, Super, i1)                      \
      NS_IMPL_ADDREF_INHERITED(Class, Super)                                    \
      NS_IMPL_RELEASE_INHERITED(Class, Super)                                   \
  
  #define NS_IMPL_ISUPPORTS_INHERITED2(Class, Super, i1, i2)                    \
      NS_IMPL_QUERY_INTERFACE_INHERITED2(Class, Super, i1, i2)                  \
      NS_IMPL_ADDREF_INHERITED(Class, Super)                                    \
      NS_IMPL_RELEASE_INHERITED(Class, Super)                                   \
  
  #define NS_IMPL_ISUPPORTS_INHERITED3(Class, Super, i1, i2, i3)                \
      NS_IMPL_QUERY_INTERFACE_INHERITED3(Class, Super, i1, i2, i3)              \
      NS_IMPL_ADDREF_INHERITED(Class, Super)                                    \
      NS_IMPL_RELEASE_INHERITED(Class, Super)                                   \
  
  #define NS_IMPL_ISUPPORTS_INHERITED4(Class, Super, i1, i2, i3, i4)            \
      NS_IMPL_QUERY_INTERFACE_INHERITED4(Class, Super, i1, i2, i3, i4)          \
      NS_IMPL_ADDREF_INHERITED(Class, Super)                                    \
      NS_IMPL_RELEASE_INHERITED(Class, Super)                                   \
  
  #define NS_IMPL_ISUPPORTS_INHERITED5(Class, Super, i1, i2, i3, i4, i5)        \
      NS_IMPL_QUERY_INTERFACE_INHERITED5(Class, Super, i1, i2, i3, i4, i5)      \
      NS_IMPL_ADDREF_INHERITED(Class, Super)                                    \
      NS_IMPL_RELEASE_INHERITED(Class, Super)                                   \
  
  #define NS_IMPL_ISUPPORTS_INHERITED6(Class, Super, i1, i2, i3, i4, i5, i6)    \
      NS_IMPL_QUERY_INTERFACE_INHERITED6(Class, Super, i1, i2, i3, i4, i5, i6)  \
      NS_IMPL_ADDREF_INHERITED(Class, Super)                                    \
      NS_IMPL_RELEASE_INHERITED(Class, Super)                                   \
  
  #define NS_IMPL_ISUPPORTS_INHERITED7(Class, Super, i1, i2, i3, i4, i5, i6, i7) \
      NS_IMPL_QUERY_INTERFACE_INHERITED7(Class, Super, i1, i2, i3, i4, i5, i6, i7) \
      NS_IMPL_ADDREF_INHERITED(Class, Super)                                    \
      NS_IMPL_RELEASE_INHERITED(Class, Super)                                   \
  
  #define NS_IMPL_ISUPPORTS_INHERITED8(Class, Super, i1, i2, i3, i4, i5, i6, i7, i8) \
      NS_IMPL_QUERY_INTERFACE_INHERITED8(Class, Super, i1, i2, i3, i4, i5, i6, i7, i8) \
      NS_IMPL_ADDREF_INHERITED(Class, Super)                                    \
      NS_IMPL_RELEASE_INHERITED(Class, Super)                                   \
  
  #define NS_IMPL_ISUPPORTS_INHERITED9(Class, Super, i1, i2, i3, i4, i5, i6, i7, i8, i9) \
      NS_IMPL_QUERY_INTERFACE_INHERITED9(Class, Super, i1, i2, i3, i4, i5, i6, i7, i8, i9) \
      NS_IMPL_ADDREF_INHERITED(Class, Super)                                    \
      NS_IMPL_RELEASE_INHERITED(Class, Super)                                   \
  /*
   * Macro to glue together a QI that starts with an interface table
   * and segues into an interface map (e.g. it uses singleton classinfo
   * or tearoffs).
   */
  #define NS_INTERFACE_TABLE_TO_MAP_SEGUE \
    if (rv == NS_OK) return rv; \
    nsISupports* foundInterface;
  
  
  ///////////////////////////////////////////////////////////////////////////////
  /**
   *
   * Threadsafe implementations of the ISupports convenience macros.
   *
   * @note  These are not available when linking against the standalone glue,
   *        because the implementation requires PR_ symbols.
   */
  
  #if !defined(XPCOM_GLUE_AVOID_NSPR)
  
  /**
   * Use this macro to implement the AddRef method for a given <i>_class</i>
   * @param _class The name of the class implementing the method
   */
  
  #define NS_IMPL_THREADSAFE_ADDREF(_class)                                     \
  NS_IMETHODIMP_(nsrefcnt) _class::AddRef(void)                                 \
  {                                                                             \
    NS_PRECONDITION(PRInt32(mRefCnt) >= 0, "illegal refcnt");                   \
    nsrefcnt count = NS_AtomicIncrementRefcnt(mRefCnt);                         \
    NS_LOG_ADDREF(this, count, #_class, sizeof(*this));                         \
    return (nsrefcnt) count;                                                    \
  }
  
  /**
   * Use this macro to implement the Release method for a given <i>_class</i>
   * @param _class The name of the class implementing the method
   *
   * Note that we don't need to use an atomic operation to stabilize the refcnt.
   * If the refcnt is released to 0, only the current thread has a reference to
   * the object; we thus don't have to use an atomic set to inform other threads
   * that we've changed the refcnt.
   */
  
  #define NS_IMPL_THREADSAFE_RELEASE(_class)                                    \
  NS_IMETHODIMP_(nsrefcnt) _class::Release(void)                                \
  {                                                                             \
    NS_PRECONDITION(0 != mRefCnt, "dup release");                               \
    nsrefcnt count = NS_AtomicDecrementRefcnt(mRefCnt);                         \
    NS_LOG_RELEASE(this, count, #_class);                                       \
    if (0 == count) {                                                           \
      mRefCnt = 1; /* stabilize */                                              \
      /* enable this to find non-threadsafe destructors: */                     \
      /* NS_ASSERT_OWNINGTHREAD(_class); */                                     \
      delete (this);                                                            \
      return 0;                                                                 \
    }                                                                           \
    return count;                                                               \
  }
  
  #else // XPCOM_GLUE_AVOID_NSPR
  
  #define NS_IMPL_THREADSAFE_ADDREF(_class)                                     \
    THREADSAFE_ISUPPORTS_NOT_AVAILABLE_IN_STANDALONE_GLUE;
  
  #define NS_IMPL_THREADSAFE_RELEASE(_class)                                    \
    THREADSAFE_ISUPPORTS_NOT_AVAILABLE_IN_STANDALONE_GLUE;
  
  #endif
  
  #define NS_IMPL_THREADSAFE_ISUPPORTS0(_class)                                 \
    NS_IMPL_THREADSAFE_ADDREF(_class)                                           \
    NS_IMPL_THREADSAFE_RELEASE(_class)                                          \
    NS_IMPL_THREADSAFE_QUERY_INTERFACE0(_class)
  
  #define NS_IMPL_THREADSAFE_ISUPPORTS1(_class, _interface)                     \
    NS_IMPL_THREADSAFE_ADDREF(_class)                                           \
    NS_IMPL_THREADSAFE_RELEASE(_class)                                          \
    NS_IMPL_THREADSAFE_QUERY_INTERFACE1(_class, _interface)
  
  #define NS_IMPL_THREADSAFE_ISUPPORTS2(_class, _i1, _i2)                       \
    NS_IMPL_THREADSAFE_ADDREF(_class)                                           \
    NS_IMPL_THREADSAFE_RELEASE(_class)                                          \
    NS_IMPL_THREADSAFE_QUERY_INTERFACE2(_class, _i1, _i2)
  
  #define NS_IMPL_THREADSAFE_ISUPPORTS3(_class, _i1, _i2, _i3)                  \
    NS_IMPL_THREADSAFE_ADDREF(_class)                                           \
    NS_IMPL_THREADSAFE_RELEASE(_class)                                          \
    NS_IMPL_THREADSAFE_QUERY_INTERFACE3(_class, _i1, _i2, _i3)
  
  #define NS_IMPL_THREADSAFE_ISUPPORTS4(_class, _i1, _i2, _i3, _i4)             \
    NS_IMPL_THREADSAFE_ADDREF(_class)                                           \
    NS_IMPL_THREADSAFE_RELEASE(_class)                                          \
    NS_IMPL_THREADSAFE_QUERY_INTERFACE4(_class, _i1, _i2, _i3, _i4)
  
  #define NS_IMPL_THREADSAFE_ISUPPORTS5(_class, _i1, _i2, _i3, _i4, _i5)        \
    NS_IMPL_THREADSAFE_ADDREF(_class)                                           \
    NS_IMPL_THREADSAFE_RELEASE(_class)                                          \
    NS_IMPL_THREADSAFE_QUERY_INTERFACE5(_class, _i1, _i2, _i3, _i4, _i5)
  
  #define NS_IMPL_THREADSAFE_ISUPPORTS6(_class, _i1, _i2, _i3, _i4, _i5, _i6)   \
    NS_IMPL_THREADSAFE_ADDREF(_class)                                           \
    NS_IMPL_THREADSAFE_RELEASE(_class)                                          \
    NS_IMPL_THREADSAFE_QUERY_INTERFACE6(_class, _i1, _i2, _i3, _i4, _i5, _i6)
  
  #define NS_IMPL_THREADSAFE_ISUPPORTS7(_class, _i1, _i2, _i3, _i4, _i5, _i6,   \
                                        _i7)                                    \
    NS_IMPL_THREADSAFE_ADDREF(_class)                                           \
    NS_IMPL_THREADSAFE_RELEASE(_class)                                          \
    NS_IMPL_THREADSAFE_QUERY_INTERFACE7(_class, _i1, _i2, _i3, _i4, _i5, _i6,   \
                                        _i7)
  
  #define NS_IMPL_THREADSAFE_ISUPPORTS8(_class, _i1, _i2, _i3, _i4, _i5, _i6,   \
                                        _i7, _i8)                               \
    NS_IMPL_THREADSAFE_ADDREF(_class)                                           \
    NS_IMPL_THREADSAFE_RELEASE(_class)                                          \
    NS_IMPL_THREADSAFE_QUERY_INTERFACE8(_class, _i1, _i2, _i3, _i4, _i5, _i6,   \
                                        _i7, _i8)
  
  #define NS_IMPL_THREADSAFE_ISUPPORTS9(_class, _i1, _i2, _i3, _i4, _i5, _i6,   \
                                        _i7, _i8, _i9)                          \
    NS_IMPL_THREADSAFE_ADDREF(_class)                                           \
    NS_IMPL_THREADSAFE_RELEASE(_class)                                          \
    NS_IMPL_THREADSAFE_QUERY_INTERFACE9(_class, _i1, _i2, _i3, _i4, _i5, _i6,   \
                                        _i7, _i8, _i9)
  
  #define NS_IMPL_THREADSAFE_ISUPPORTS10(_class, _i1, _i2, _i3, _i4, _i5, _i6,  \
                                         _i7, _i8, _i9, _i10)                   \
    NS_IMPL_THREADSAFE_ADDREF(_class)                                           \
    NS_IMPL_THREADSAFE_RELEASE(_class)                                          \
    NS_IMPL_THREADSAFE_QUERY_INTERFACE10(_class, _i1, _i2, _i3, _i4, _i5, _i6,  \
                                         _i7, _i8, _i9, _i10)
  
  #define NS_IMPL_THREADSAFE_ISUPPORTS11(_class, _i1, _i2, _i3, _i4, _i5, _i6,  \
                                         _i7, _i8, _i9, _i10, _i11)             \
    NS_IMPL_THREADSAFE_ADDREF(_class)                                           \
    NS_IMPL_THREADSAFE_RELEASE(_class)                                          \
    NS_IMPL_THREADSAFE_QUERY_INTERFACE11(_class, _i1, _i2, _i3, _i4, _i5, _i6,  \
                                         _i7, _i8, _i9, _i10, _i11)
  
  #define NS_INTERFACE_MAP_END_THREADSAFE NS_IMPL_QUERY_TAIL_GUTS
  
  /**
   * Macro to generate nsIClassInfo methods for classes which do not have
   * corresponding nsIFactory implementations.
   */
  #define NS_IMPL_THREADSAFE_CI(_class)                                         \
  NS_IMETHODIMP                                                                 \
  _class::GetInterfaces(PRUint32* _count, nsIID*** _array)                      \
  {                                                                             \
    return NS_CI_INTERFACE_GETTER_NAME(_class)(_count, _array);                 \
  }                                                                             \
                                                                                \
  NS_IMETHODIMP                                                                 \
  _class::GetHelperForLanguage(PRUint32 _language, nsISupports** _retval)       \
  {                                                                             \
    *_retval = nsnull;                                                          \
    return NS_OK;                                                               \
  }                                                                             \
                                                                                \
  NS_IMETHODIMP                                                                 \
  _class::GetContractID(char** _contractID)                                     \
  {                                                                             \
    *_contractID = nsnull;                                                      \
    return NS_OK;                                                               \
  }                                                                             \
                                                                                \
  NS_IMETHODIMP                                                                 \
  _class::GetClassDescription(char** _classDescription)                         \
  {                                                                             \
    *_classDescription = nsnull;                                                \
    return NS_OK;                                                               \
  }                                                                             \
                                                                                \
  NS_IMETHODIMP                                                                 \
  _class::GetClassID(nsCID** _classID)                                          \
  {                                                                             \
    *_classID = nsnull;                                                         \
    return NS_OK;                                                               \
  }                                                                             \
                                                                                \
  NS_IMETHODIMP                                                                 \
  _class::GetImplementationLanguage(PRUint32* _language)                        \
  {                                                                             \
    *_language = nsIProgrammingLanguage::CPLUSPLUS;                             \
    return NS_OK;                                                               \
  }                                                                             \
                                                                                \
  NS_IMETHODIMP                                                                 \
  _class::GetFlags(PRUint32* _flags)                                            \
  {                                                                             \
    *_flags = nsIClassInfo::THREADSAFE;                                         \
    return NS_OK;                                                               \
  }                                                                             \
                                                                                \
  NS_IMETHODIMP                                                                 \
  _class::GetClassIDNoAlloc(nsCID* _classIDNoAlloc)                             \
  {                                                                             \
    return NS_ERROR_NOT_AVAILABLE;                                              \
  }
  
  #endif
  