Extend base::Callback to 8 arguments.

base/bind_internal.h

 // This file was GENERATED by command:
 //     pump.py bind_internal.h.pump
 // DO NOT EDIT BY HAND!!!
 
 
 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef BASE_BIND_INTERNAL_H_
@@ skipping 626 matching lines @@
       typename CallbackParamTraits<A7>::ForwardType a7) {
     return (object->*method_)(CallbackForward(a1), CallbackForward(a2),
         CallbackForward(a3), CallbackForward(a4), CallbackForward(a5),
         CallbackForward(a6), CallbackForward(a7));
   }
 
  private:
   R (T::*method_)(A1, A2, A3, A4, A5, A6, A7) const;
 };
 
+// Function: Arity 8.
+template <typename R, typename A1, typename A2, typename A3, typename A4,
+    typename A5, typename A6, typename A7, typename A8>
+class RunnableAdapter<R(*)(A1, A2, A3, A4, A5, A6, A7, A8)> {
+ public:
+  typedef R (RunType)(A1, A2, A3, A4, A5, A6, A7, A8);
+
+  explicit RunnableAdapter(R(*function)(A1, A2, A3, A4, A5, A6, A7, A8))
+      : function_(function) {
+  }
+
+  R Run(typename CallbackParamTraits<A1>::ForwardType a1,
+      typename CallbackParamTraits<A2>::ForwardType a2,
+      typename CallbackParamTraits<A3>::ForwardType a3,
+      typename CallbackParamTraits<A4>::ForwardType a4,
+      typename CallbackParamTraits<A5>::ForwardType a5,
+      typename CallbackParamTraits<A6>::ForwardType a6,
+      typename CallbackParamTraits<A7>::ForwardType a7,
+      typename CallbackParamTraits<A8>::ForwardType a8) {
+    return function_(CallbackForward(a1), CallbackForward(a2),
+        CallbackForward(a3), CallbackForward(a4), CallbackForward(a5),
+        CallbackForward(a6), CallbackForward(a7), CallbackForward(a8));
+  }
+
+ private:
+  R (*function_)(A1, A2, A3, A4, A5, A6, A7, A8);
+};
+
+// Method: Arity 8.
+template <typename R, typename T, typename A1, typename A2, typename A3,
+    typename A4, typename A5, typename A6, typename A7, typename A8>
+class RunnableAdapter<R(T::*)(A1, A2, A3, A4, A5, A6, A7, A8)> {
+ public:
+  typedef R (RunType)(T*, A1, A2, A3, A4, A5, A6, A7, A8);
+  typedef true_type IsMethod;
+
+  explicit RunnableAdapter(R(T::*method)(A1, A2, A3, A4, A5, A6, A7, A8))
+      : method_(method) {
+  }
+
+  R Run(T* object, typename CallbackParamTraits<A1>::ForwardType a1,
+      typename CallbackParamTraits<A2>::ForwardType a2,
+      typename CallbackParamTraits<A3>::ForwardType a3,
+      typename CallbackParamTraits<A4>::ForwardType a4,
+      typename CallbackParamTraits<A5>::ForwardType a5,
+      typename CallbackParamTraits<A6>::ForwardType a6,
+      typename CallbackParamTraits<A7>::ForwardType a7,
+      typename CallbackParamTraits<A8>::ForwardType a8) {
+    return (object->*method_)(CallbackForward(a1), CallbackForward(a2),
+        CallbackForward(a3), CallbackForward(a4), CallbackForward(a5),
+        CallbackForward(a6), CallbackForward(a7), CallbackForward(a8));
+  }
+
+ private:
+  R (T::*method_)(A1, A2, A3, A4, A5, A6, A7, A8);
+};
+
+// Const Method: Arity 8.
+template <typename R, typename T, typename A1, typename A2, typename A3,
+    typename A4, typename A5, typename A6, typename A7, typename A8>
+class RunnableAdapter<R(T::*)(A1, A2, A3, A4, A5, A6, A7, A8) const> {
+ public:
+  typedef R (RunType)(const T*, A1, A2, A3, A4, A5, A6, A7, A8);
+  typedef true_type IsMethod;
+
+  explicit RunnableAdapter(R(T::*method)(A1, A2, A3, A4, A5, A6, A7, A8) const)
+      : method_(method) {
+  }
+
+  R Run(const T* object, typename CallbackParamTraits<A1>::ForwardType a1,
+      typename CallbackParamTraits<A2>::ForwardType a2,
+      typename CallbackParamTraits<A3>::ForwardType a3,
+      typename CallbackParamTraits<A4>::ForwardType a4,
+      typename CallbackParamTraits<A5>::ForwardType a5,
+      typename CallbackParamTraits<A6>::ForwardType a6,
+      typename CallbackParamTraits<A7>::ForwardType a7,
+      typename CallbackParamTraits<A8>::ForwardType a8) {
+    return (object->*method_)(CallbackForward(a1), CallbackForward(a2),
+        CallbackForward(a3), CallbackForward(a4), CallbackForward(a5),
+        CallbackForward(a6), CallbackForward(a7), CallbackForward(a8));
+  }
+
+ private:
+  R (T::*method_)(A1, A2, A3, A4, A5, A6, A7, A8) const;
+};
 
 // FunctionTraits<>
 //
 // Breaks a function signature apart into typedefs for easier introspection.
 template <typename Sig>
 struct FunctionTraits;
 
 template <typename R>
 struct FunctionTraits<R()> {
   typedef R ReturnType;
@@ skipping 58 matching lines @@
   typedef R ReturnType;
   typedef A1 A1Type;
   typedef A2 A2Type;
   typedef A3 A3Type;
   typedef A4 A4Type;
   typedef A5 A5Type;
   typedef A6 A6Type;
   typedef A7 A7Type;
 };
 
+template <typename R, typename A1, typename A2, typename A3, typename A4,
+    typename A5, typename A6, typename A7, typename A8>
+struct FunctionTraits<R(A1, A2, A3, A4, A5, A6, A7, A8)> {
+  typedef R ReturnType;
+  typedef A1 A1Type;
+  typedef A2 A2Type;
+  typedef A3 A3Type;
+  typedef A4 A4Type;
+  typedef A5 A5Type;
+  typedef A6 A6Type;
+  typedef A7 A7Type;
+  typedef A8 A8Type;
+};
 
 // ForceVoidReturn<>
 //
 // Set of templates that support forcing the function return type to void.
 template <typename Sig>
 struct ForceVoidReturn;
 
 template <typename R>
 struct ForceVoidReturn<R()> {
   typedef void(RunType)();
@@ skipping 30 matching lines @@
 struct ForceVoidReturn<R(A1, A2, A3, A4, A5, A6)> {
   typedef void(RunType)(A1, A2, A3, A4, A5, A6);
 };
 
 template <typename R, typename A1, typename A2, typename A3, typename A4,
     typename A5, typename A6, typename A7>
 struct ForceVoidReturn<R(A1, A2, A3, A4, A5, A6, A7)> {
   typedef void(RunType)(A1, A2, A3, A4, A5, A6, A7);
 };
 
+template <typename R, typename A1, typename A2, typename A3, typename A4,
+    typename A5, typename A6, typename A7, typename A8>
+struct ForceVoidReturn<R(A1, A2, A3, A4, A5, A6, A7, A8)> {
+  typedef void(RunType)(A1, A2, A3, A4, A5, A6, A7, A8);
+};
 
 // FunctorTraits<>
 //
 // See description at top of file.
 template <typename T>
 struct FunctorTraits {
   typedef RunnableAdapter<T> RunnableType;
   typedef typename RunnableType::RunType RunType;
 };
 
@@ skipping 228 matching lines @@
 struct InvokeHelper<false, ReturnType, Runnable,
     void(A1, A2, A3, A4, A5, A6)>  {
   static ReturnType MakeItSo(Runnable runnable, A1 a1, A2 a2, A3 a3, A4 a4,
       A5 a5, A6 a6) {
     return runnable.Run(CallbackForward(a1), CallbackForward(a2),
         CallbackForward(a3), CallbackForward(a4), CallbackForward(a5),
         CallbackForward(a6));
   }
 };
 
-template <typename Runnable,typename A1, typename A2, typename A3, typename A4,
+template <typename Runnable, typename A1, typename A2, typename A3, typename A4,
     typename A5, typename A6>
 struct InvokeHelper<false, void, Runnable,
     void(A1, A2, A3, A4, A5, A6)>  {
   static void MakeItSo(Runnable runnable, A1 a1, A2 a2, A3 a3, A4 a4, A5 a5,
       A6 a6) {
     runnable.Run(CallbackForward(a1), CallbackForward(a2), CallbackForward(a3),
         CallbackForward(a4), CallbackForward(a5), CallbackForward(a6));
   }
 };
 
@@ skipping 45 matching lines @@
     if (!a1.get()) {
       return;
     }
 
     runnable.Run(CallbackForward(a1), CallbackForward(a2), CallbackForward(a3),
         CallbackForward(a4), CallbackForward(a5), CallbackForward(a6),
         CallbackForward(a7));
   }
 };
 
+template <typename ReturnType, typename Runnable,typename A1, typename A2,
+    typename A3, typename A4, typename A5, typename A6, typename A7,
+    typename A8>
+struct InvokeHelper<false, ReturnType, Runnable,
+    void(A1, A2, A3, A4, A5, A6, A7, A8)>  {
+  static ReturnType MakeItSo(Runnable runnable, A1 a1, A2 a2, A3 a3, A4 a4,
+      A5 a5, A6 a6, A7 a7, A8 a8) {
+    return runnable.Run(CallbackForward(a1), CallbackForward(a2),
+        CallbackForward(a3), CallbackForward(a4), CallbackForward(a5),
+        CallbackForward(a6), CallbackForward(a7), CallbackForward(a8));
+  }
+};
+
+template <typename Runnable,typename A1, typename A2, typename A3, typename A4,
+    typename A5, typename A6, typename A7, typename A8>
+struct InvokeHelper<false, void, Runnable,
+    void(A1, A2, A3, A4, A5, A6, A7, A8)>  {
+  static void MakeItSo(Runnable runnable, A1 a1, A2 a2, A3 a3, A4 a4, A5 a5,
+      A6 a6, A7 a7, A8 a8) {
+    runnable.Run(CallbackForward(a1), CallbackForward(a2), CallbackForward(a3),
+        CallbackForward(a4), CallbackForward(a5), CallbackForward(a6),
+        CallbackForward(a7), CallbackForward(a8));
+  }
+};
+
+template <typename Runnable, typename A1, typename A2, typename A3,
+    typename A4, typename A5, typename A6, typename A7, typename A8>
+struct InvokeHelper<true, void, Runnable,
+    void(A1, A2, A3, A4, A5, A6, A7, A8)>  {
+  static void MakeItSo(Runnable runnable, A1 a1, A2 a2, A3 a3, A4 a4, A5 a5,
+      A6 a6, A7 a7, A8 a8) {
+    if (!a1.get()) {
+      return;
+    }
+
+    runnable.Run(CallbackForward(a1), CallbackForward(a2), CallbackForward(a3),
+        CallbackForward(a4), CallbackForward(a5), CallbackForward(a6),
+        CallbackForward(a7), CallbackForward(a8));
+  }
+};
+
 #if !defined(_MSC_VER)
 
 template <typename ReturnType, typename Runnable, typename ArgsType>
 struct InvokeHelper<true, ReturnType, Runnable, ArgsType> {
   // WeakCalls are only supported for functions with a void return type.
   // Otherwise, the function result would be undefined if the the WeakPtr<>
   // is invalidated.
   COMPILE_ASSERT(is_void<ReturnType>::value,
                  weak_ptrs_can_only_bind_to_methods_without_return_values);
 };
@@ skipping 1412 matching lines @@
                typename Bound5UnwrapTraits::ForwardType,
                typename Bound6UnwrapTraits::ForwardType,
                typename Bound7UnwrapTraits::ForwardType)>
                ::MakeItSo(storage->runnable_, CallbackForward(x1),
                    CallbackForward(x2), CallbackForward(x3),
                    CallbackForward(x4), CallbackForward(x5),
                    CallbackForward(x6), CallbackForward(x7));
   }
 };
 
+// Arity 8 -> 8.
+template <typename StorageType, typename R,typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6, typename X7,
+    typename X8>
+struct Invoker<0, StorageType, R(X1, X2, X3, X4, X5, X6, X7, X8)> {
+  typedef R(RunType)(BindStateBase*,
+      typename CallbackParamTraits<X1>::ForwardType,
+      typename CallbackParamTraits<X2>::ForwardType,
+      typename CallbackParamTraits<X3>::ForwardType,
+      typename CallbackParamTraits<X4>::ForwardType,
+      typename CallbackParamTraits<X5>::ForwardType,
+      typename CallbackParamTraits<X6>::ForwardType,
+      typename CallbackParamTraits<X7>::ForwardType,
+      typename CallbackParamTraits<X8>::ForwardType);
+
+  typedef R(UnboundRunType)(X1, X2, X3, X4, X5, X6, X7, X8);
+
+  static R Run(BindStateBase* base,
+      typename CallbackParamTraits<X1>::ForwardType x1,
+      typename CallbackParamTraits<X2>::ForwardType x2,
+      typename CallbackParamTraits<X3>::ForwardType x3,
+      typename CallbackParamTraits<X4>::ForwardType x4,
+      typename CallbackParamTraits<X5>::ForwardType x5,
+      typename CallbackParamTraits<X6>::ForwardType x6,
+      typename CallbackParamTraits<X7>::ForwardType x7,
+      typename CallbackParamTraits<X8>::ForwardType x8) {
+    StorageType* storage = static_cast<StorageType*>(base);
+
+    // Local references to make debugger stepping easier. If in a debugger,
+    // you really want to warp ahead and step through the
+    // InvokeHelper<>::MakeItSo() call below.
+
+    return InvokeHelper<StorageType::IsWeakCall::value, R,
+           typename StorageType::RunnableType,
+           void(typename CallbackParamTraits<X1>::ForwardType x1,
+               typename CallbackParamTraits<X2>::ForwardType x2,
+               typename CallbackParamTraits<X3>::ForwardType x3,
+               typename CallbackParamTraits<X4>::ForwardType x4,
+               typename CallbackParamTraits<X5>::ForwardType x5,
+               typename CallbackParamTraits<X6>::ForwardType x6,
+               typename CallbackParamTraits<X7>::ForwardType x7,
+               typename CallbackParamTraits<X8>::ForwardType x8)>
+               ::MakeItSo(storage->runnable_, CallbackForward(x1),
+                   CallbackForward(x2), CallbackForward(x3),
+                   CallbackForward(x4), CallbackForward(x5),
+                   CallbackForward(x6), CallbackForward(x7),
+                   CallbackForward(x8));
+  }
+};
+
+// Arity 8 -> 7.
+template <typename StorageType, typename R,typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6, typename X7,
+    typename X8>
+struct Invoker<1, StorageType, R(X1, X2, X3, X4, X5, X6, X7, X8)> {
+  typedef R(RunType)(BindStateBase*,
+      typename CallbackParamTraits<X2>::ForwardType,
+      typename CallbackParamTraits<X3>::ForwardType,
+      typename CallbackParamTraits<X4>::ForwardType,
+      typename CallbackParamTraits<X5>::ForwardType,
+      typename CallbackParamTraits<X6>::ForwardType,
+      typename CallbackParamTraits<X7>::ForwardType,
+      typename CallbackParamTraits<X8>::ForwardType);
+
+  typedef R(UnboundRunType)(X2, X3, X4, X5, X6, X7, X8);
+
+  static R Run(BindStateBase* base,
+      typename CallbackParamTraits<X2>::ForwardType x2,
+      typename CallbackParamTraits<X3>::ForwardType x3,
+      typename CallbackParamTraits<X4>::ForwardType x4,
+      typename CallbackParamTraits<X5>::ForwardType x5,
+      typename CallbackParamTraits<X6>::ForwardType x6,
+      typename CallbackParamTraits<X7>::ForwardType x7,
+      typename CallbackParamTraits<X8>::ForwardType x8) {
+    StorageType* storage = static_cast<StorageType*>(base);
+
+    // Local references to make debugger stepping easier. If in a debugger,
+    // you really want to warp ahead and step through the
+    // InvokeHelper<>::MakeItSo() call below.
+    typedef typename StorageType::Bound1UnwrapTraits Bound1UnwrapTraits;
+
+    typename Bound1UnwrapTraits::ForwardType x1 =
+        Bound1UnwrapTraits::Unwrap(storage->p1_);
+    return InvokeHelper<StorageType::IsWeakCall::value, R,
+           typename StorageType::RunnableType,
+           void(typename Bound1UnwrapTraits::ForwardType,
+               typename CallbackParamTraits<X2>::ForwardType x2,
+               typename CallbackParamTraits<X3>::ForwardType x3,
+               typename CallbackParamTraits<X4>::ForwardType x4,
+               typename CallbackParamTraits<X5>::ForwardType x5,
+               typename CallbackParamTraits<X6>::ForwardType x6,
+               typename CallbackParamTraits<X7>::ForwardType x7,
+               typename CallbackParamTraits<X8>::ForwardType x8)>
+               ::MakeItSo(storage->runnable_, CallbackForward(x1),
+                   CallbackForward(x2), CallbackForward(x3),
+                   CallbackForward(x4), CallbackForward(x5),
+                   CallbackForward(x6), CallbackForward(x7),
+                   CallbackForward(x8));
+  }
+};
+
+// Arity 8 -> 6.
+template <typename StorageType, typename R,typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6, typename X7,
+    typename X8>
+struct Invoker<2, StorageType, R(X1, X2, X3, X4, X5, X6, X7, X8)> {
+  typedef R(RunType)(BindStateBase*,
+      typename CallbackParamTraits<X3>::ForwardType,
+      typename CallbackParamTraits<X4>::ForwardType,
+      typename CallbackParamTraits<X5>::ForwardType,
+      typename CallbackParamTraits<X6>::ForwardType,
+      typename CallbackParamTraits<X7>::ForwardType,
+      typename CallbackParamTraits<X8>::ForwardType);
+
+  typedef R(UnboundRunType)(X3, X4, X5, X6, X7, X8);
+
+  static R Run(BindStateBase* base,
+      typename CallbackParamTraits<X3>::ForwardType x3,
+      typename CallbackParamTraits<X4>::ForwardType x4,
+      typename CallbackParamTraits<X5>::ForwardType x5,
+      typename CallbackParamTraits<X6>::ForwardType x6,
+      typename CallbackParamTraits<X7>::ForwardType x7,
+      typename CallbackParamTraits<X8>::ForwardType x8) {
+    StorageType* storage = static_cast<StorageType*>(base);
+
+    // Local references to make debugger stepping easier. If in a debugger,
+    // you really want to warp ahead and step through the
+    // InvokeHelper<>::MakeItSo() call below.
+    typedef typename StorageType::Bound1UnwrapTraits Bound1UnwrapTraits;
+    typedef typename StorageType::Bound2UnwrapTraits Bound2UnwrapTraits;
+
+    typename Bound1UnwrapTraits::ForwardType x1 =
+        Bound1UnwrapTraits::Unwrap(storage->p1_);
+    typename Bound2UnwrapTraits::ForwardType x2 =
+        Bound2UnwrapTraits::Unwrap(storage->p2_);
+    return InvokeHelper<StorageType::IsWeakCall::value, R,
+           typename StorageType::RunnableType,
+           void(typename Bound1UnwrapTraits::ForwardType,
+               typename Bound2UnwrapTraits::ForwardType,
+               typename CallbackParamTraits<X3>::ForwardType x3,
+               typename CallbackParamTraits<X4>::ForwardType x4,
+               typename CallbackParamTraits<X5>::ForwardType x5,
+               typename CallbackParamTraits<X6>::ForwardType x6,
+               typename CallbackParamTraits<X7>::ForwardType x7,
+               typename CallbackParamTraits<X8>::ForwardType x8)>
+               ::MakeItSo(storage->runnable_, CallbackForward(x1),
+                   CallbackForward(x2), CallbackForward(x3),
+                   CallbackForward(x4), CallbackForward(x5),
+                   CallbackForward(x6), CallbackForward(x7),
+                   CallbackForward(x8));
+  }
+};
+
+// Arity 8 -> 5.
+template <typename StorageType, typename R,typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6, typename X7,
+    typename X8>
+struct Invoker<3, StorageType, R(X1, X2, X3, X4, X5, X6, X7, X8)> {
+  typedef R(RunType)(BindStateBase*,
+      typename CallbackParamTraits<X4>::ForwardType,
+      typename CallbackParamTraits<X5>::ForwardType,
+      typename CallbackParamTraits<X6>::ForwardType,
+      typename CallbackParamTraits<X7>::ForwardType,
+      typename CallbackParamTraits<X8>::ForwardType);
+
+  typedef R(UnboundRunType)(X4, X5, X6, X7, X8);
+
+  static R Run(BindStateBase* base,
+      typename CallbackParamTraits<X4>::ForwardType x4,
+      typename CallbackParamTraits<X5>::ForwardType x5,
+      typename CallbackParamTraits<X6>::ForwardType x6,
+      typename CallbackParamTraits<X7>::ForwardType x7,
+      typename CallbackParamTraits<X8>::ForwardType x8) {
+    StorageType* storage = static_cast<StorageType*>(base);
+
+    // Local references to make debugger stepping easier. If in a debugger,
+    // you really want to warp ahead and step through the
+    // InvokeHelper<>::MakeItSo() call below.
+    typedef typename StorageType::Bound1UnwrapTraits Bound1UnwrapTraits;
+    typedef typename StorageType::Bound2UnwrapTraits Bound2UnwrapTraits;
+    typedef typename StorageType::Bound3UnwrapTraits Bound3UnwrapTraits;
+
+    typename Bound1UnwrapTraits::ForwardType x1 =
+        Bound1UnwrapTraits::Unwrap(storage->p1_);
+    typename Bound2UnwrapTraits::ForwardType x2 =
+        Bound2UnwrapTraits::Unwrap(storage->p2_);
+    typename Bound3UnwrapTraits::ForwardType x3 =
+        Bound3UnwrapTraits::Unwrap(storage->p3_);
+    return InvokeHelper<StorageType::IsWeakCall::value, R,
+           typename StorageType::RunnableType,
+           void(typename Bound1UnwrapTraits::ForwardType,
+               typename Bound2UnwrapTraits::ForwardType,
+               typename Bound3UnwrapTraits::ForwardType,
+               typename CallbackParamTraits<X4>::ForwardType x4,
+               typename CallbackParamTraits<X5>::ForwardType x5,
+               typename CallbackParamTraits<X6>::ForwardType x6,
+               typename CallbackParamTraits<X7>::ForwardType x7,
+               typename CallbackParamTraits<X8>::ForwardType x8)>
+               ::MakeItSo(storage->runnable_, CallbackForward(x1),
+                   CallbackForward(x2), CallbackForward(x3),
+                   CallbackForward(x4), CallbackForward(x5),
+                   CallbackForward(x6), CallbackForward(x7),
+                   CallbackForward(x8));
+  }
+};
+
+// Arity 8 -> 4.
+template <typename StorageType, typename R,typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6, typename X7,
+    typename X8>
+struct Invoker<4, StorageType, R(X1, X2, X3, X4, X5, X6, X7, X8)> {
+  typedef R(RunType)(BindStateBase*,
+      typename CallbackParamTraits<X5>::ForwardType,
+      typename CallbackParamTraits<X6>::ForwardType,
+      typename CallbackParamTraits<X7>::ForwardType,
+      typename CallbackParamTraits<X8>::ForwardType);
+
+  typedef R(UnboundRunType)(X5, X6, X7, X8);
+
+  static R Run(BindStateBase* base,
+      typename CallbackParamTraits<X5>::ForwardType x5,
+      typename CallbackParamTraits<X6>::ForwardType x6,
+      typename CallbackParamTraits<X7>::ForwardType x7,
+      typename CallbackParamTraits<X8>::ForwardType x8) {
+    StorageType* storage = static_cast<StorageType*>(base);
+
+    // Local references to make debugger stepping easier. If in a debugger,
+    // you really want to warp ahead and step through the
+    // InvokeHelper<>::MakeItSo() call below.
+    typedef typename StorageType::Bound1UnwrapTraits Bound1UnwrapTraits;
+    typedef typename StorageType::Bound2UnwrapTraits Bound2UnwrapTraits;
+    typedef typename StorageType::Bound3UnwrapTraits Bound3UnwrapTraits;
+    typedef typename StorageType::Bound4UnwrapTraits Bound4UnwrapTraits;
+
+    typename Bound1UnwrapTraits::ForwardType x1 =
+        Bound1UnwrapTraits::Unwrap(storage->p1_);
+    typename Bound2UnwrapTraits::ForwardType x2 =
+        Bound2UnwrapTraits::Unwrap(storage->p2_);
+    typename Bound3UnwrapTraits::ForwardType x3 =
+        Bound3UnwrapTraits::Unwrap(storage->p3_);
+    typename Bound4UnwrapTraits::ForwardType x4 =
+        Bound4UnwrapTraits::Unwrap(storage->p4_);
+    return InvokeHelper<StorageType::IsWeakCall::value, R,
+           typename StorageType::RunnableType,
+           void(typename Bound1UnwrapTraits::ForwardType,
+               typename Bound2UnwrapTraits::ForwardType,
+               typename Bound3UnwrapTraits::ForwardType,
+               typename Bound4UnwrapTraits::ForwardType,
+               typename CallbackParamTraits<X5>::ForwardType x5,
+               typename CallbackParamTraits<X6>::ForwardType x6,
+               typename CallbackParamTraits<X7>::ForwardType x7,
+               typename CallbackParamTraits<X8>::ForwardType x8)>
+               ::MakeItSo(storage->runnable_, CallbackForward(x1),
+                   CallbackForward(x2), CallbackForward(x3),
+                   CallbackForward(x4), CallbackForward(x5),
+                   CallbackForward(x6), CallbackForward(x7),
+                   CallbackForward(x8));
+  }
+};
+
+// Arity 8 -> 3.
+template <typename StorageType, typename R,typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6, typename X7,
+    typename X8>
+struct Invoker<5, StorageType, R(X1, X2, X3, X4, X5, X6, X7, X8)> {
+  typedef R(RunType)(BindStateBase*,
+      typename CallbackParamTraits<X6>::ForwardType,
+      typename CallbackParamTraits<X7>::ForwardType,
+      typename CallbackParamTraits<X8>::ForwardType);
+
+  typedef R(UnboundRunType)(X6, X7, X8);
+
+  static R Run(BindStateBase* base,
+      typename CallbackParamTraits<X6>::ForwardType x6,
+      typename CallbackParamTraits<X7>::ForwardType x7,
+      typename CallbackParamTraits<X8>::ForwardType x8) {
+    StorageType* storage = static_cast<StorageType*>(base);
+
+    // Local references to make debugger stepping easier. If in a debugger,
+    // you really want to warp ahead and step through the
+    // InvokeHelper<>::MakeItSo() call below.
+    typedef typename StorageType::Bound1UnwrapTraits Bound1UnwrapTraits;
+    typedef typename StorageType::Bound2UnwrapTraits Bound2UnwrapTraits;
+    typedef typename StorageType::Bound3UnwrapTraits Bound3UnwrapTraits;
+    typedef typename StorageType::Bound4UnwrapTraits Bound4UnwrapTraits;
+    typedef typename StorageType::Bound5UnwrapTraits Bound5UnwrapTraits;
+
+    typename Bound1UnwrapTraits::ForwardType x1 =
+        Bound1UnwrapTraits::Unwrap(storage->p1_);
+    typename Bound2UnwrapTraits::ForwardType x2 =
+        Bound2UnwrapTraits::Unwrap(storage->p2_);
+    typename Bound3UnwrapTraits::ForwardType x3 =
+        Bound3UnwrapTraits::Unwrap(storage->p3_);
+    typename Bound4UnwrapTraits::ForwardType x4 =
+        Bound4UnwrapTraits::Unwrap(storage->p4_);
+    typename Bound5UnwrapTraits::ForwardType x5 =
+        Bound5UnwrapTraits::Unwrap(storage->p5_);
+    return InvokeHelper<StorageType::IsWeakCall::value, R,
+           typename StorageType::RunnableType,
+           void(typename Bound1UnwrapTraits::ForwardType,
+               typename Bound2UnwrapTraits::ForwardType,
+               typename Bound3UnwrapTraits::ForwardType,
+               typename Bound4UnwrapTraits::ForwardType,
+               typename Bound5UnwrapTraits::ForwardType,
+               typename CallbackParamTraits<X6>::ForwardType x6,
+               typename CallbackParamTraits<X7>::ForwardType x7,
+               typename CallbackParamTraits<X8>::ForwardType x8)>
+               ::MakeItSo(storage->runnable_, CallbackForward(x1),
+                   CallbackForward(x2), CallbackForward(x3),
+                   CallbackForward(x4), CallbackForward(x5),
+                   CallbackForward(x6), CallbackForward(x7),
+                   CallbackForward(x8));
+  }
+};
+
+// Arity 8 -> 2.
+template <typename StorageType, typename R,typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6, typename X7,
+    typename X8>
+struct Invoker<6, StorageType, R(X1, X2, X3, X4, X5, X6, X7, X8)> {
+  typedef R(RunType)(BindStateBase*,
+      typename CallbackParamTraits<X7>::ForwardType,
+      typename CallbackParamTraits<X8>::ForwardType);
+
+  typedef R(UnboundRunType)(X7, X8);
+
+  static R Run(BindStateBase* base,
+      typename CallbackParamTraits<X7>::ForwardType x7,
+      typename CallbackParamTraits<X8>::ForwardType x8) {
+    StorageType* storage = static_cast<StorageType*>(base);
+
+    // Local references to make debugger stepping easier. If in a debugger,
+    // you really want to warp ahead and step through the
+    // InvokeHelper<>::MakeItSo() call below.
+    typedef typename StorageType::Bound1UnwrapTraits Bound1UnwrapTraits;
+    typedef typename StorageType::Bound2UnwrapTraits Bound2UnwrapTraits;
+    typedef typename StorageType::Bound3UnwrapTraits Bound3UnwrapTraits;
+    typedef typename StorageType::Bound4UnwrapTraits Bound4UnwrapTraits;
+    typedef typename StorageType::Bound5UnwrapTraits Bound5UnwrapTraits;
+    typedef typename StorageType::Bound6UnwrapTraits Bound6UnwrapTraits;
+
+    typename Bound1UnwrapTraits::ForwardType x1 =
+        Bound1UnwrapTraits::Unwrap(storage->p1_);
+    typename Bound2UnwrapTraits::ForwardType x2 =
+        Bound2UnwrapTraits::Unwrap(storage->p2_);
+    typename Bound3UnwrapTraits::ForwardType x3 =
+        Bound3UnwrapTraits::Unwrap(storage->p3_);
+    typename Bound4UnwrapTraits::ForwardType x4 =
+        Bound4UnwrapTraits::Unwrap(storage->p4_);
+    typename Bound5UnwrapTraits::ForwardType x5 =
+        Bound5UnwrapTraits::Unwrap(storage->p5_);
+    typename Bound6UnwrapTraits::ForwardType x6 =
+        Bound6UnwrapTraits::Unwrap(storage->p6_);
+    return InvokeHelper<StorageType::IsWeakCall::value, R,
+           typename StorageType::RunnableType,
+           void(typename Bound1UnwrapTraits::ForwardType,
+               typename Bound2UnwrapTraits::ForwardType,
+               typename Bound3UnwrapTraits::ForwardType,
+               typename Bound4UnwrapTraits::ForwardType,
+               typename Bound5UnwrapTraits::ForwardType,
+               typename Bound6UnwrapTraits::ForwardType,
+               typename CallbackParamTraits<X7>::ForwardType x7,
+               typename CallbackParamTraits<X8>::ForwardType x8)>
+               ::MakeItSo(storage->runnable_, CallbackForward(x1),
+                   CallbackForward(x2), CallbackForward(x3),
+                   CallbackForward(x4), CallbackForward(x5),
+                   CallbackForward(x6), CallbackForward(x7),
+                   CallbackForward(x8));
+  }
+};
+
+// Arity 8 -> 1.
+template <typename StorageType, typename R,typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6, typename X7,
+    typename X8>
+struct Invoker<7, StorageType, R(X1, X2, X3, X4, X5, X6, X7, X8)> {
+  typedef R(RunType)(BindStateBase*,
+      typename CallbackParamTraits<X8>::ForwardType);
+
+  typedef R(UnboundRunType)(X8);
+
+  static R Run(BindStateBase* base,
+      typename CallbackParamTraits<X8>::ForwardType x8) {
+    StorageType* storage = static_cast<StorageType*>(base);
+
+    // Local references to make debugger stepping easier. If in a debugger,
+    // you really want to warp ahead and step through the
+    // InvokeHelper<>::MakeItSo() call below.
+    typedef typename StorageType::Bound1UnwrapTraits Bound1UnwrapTraits;
+    typedef typename StorageType::Bound2UnwrapTraits Bound2UnwrapTraits;
+    typedef typename StorageType::Bound3UnwrapTraits Bound3UnwrapTraits;
+    typedef typename StorageType::Bound4UnwrapTraits Bound4UnwrapTraits;
+    typedef typename StorageType::Bound5UnwrapTraits Bound5UnwrapTraits;
+    typedef typename StorageType::Bound6UnwrapTraits Bound6UnwrapTraits;
+    typedef typename StorageType::Bound7UnwrapTraits Bound7UnwrapTraits;
+
+    typename Bound1UnwrapTraits::ForwardType x1 =
+        Bound1UnwrapTraits::Unwrap(storage->p1_);
+    typename Bound2UnwrapTraits::ForwardType x2 =
+        Bound2UnwrapTraits::Unwrap(storage->p2_);
+    typename Bound3UnwrapTraits::ForwardType x3 =
+        Bound3UnwrapTraits::Unwrap(storage->p3_);
+    typename Bound4UnwrapTraits::ForwardType x4 =
+        Bound4UnwrapTraits::Unwrap(storage->p4_);
+    typename Bound5UnwrapTraits::ForwardType x5 =
+        Bound5UnwrapTraits::Unwrap(storage->p5_);
+    typename Bound6UnwrapTraits::ForwardType x6 =
+        Bound6UnwrapTraits::Unwrap(storage->p6_);
+    typename Bound7UnwrapTraits::ForwardType x7 =
+        Bound7UnwrapTraits::Unwrap(storage->p7_);
+    return InvokeHelper<StorageType::IsWeakCall::value, R,
+           typename StorageType::RunnableType,
+           void(typename Bound1UnwrapTraits::ForwardType,
+               typename Bound2UnwrapTraits::ForwardType,
+               typename Bound3UnwrapTraits::ForwardType,
+               typename Bound4UnwrapTraits::ForwardType,
+               typename Bound5UnwrapTraits::ForwardType,
+               typename Bound6UnwrapTraits::ForwardType,
+               typename Bound7UnwrapTraits::ForwardType,
+               typename CallbackParamTraits<X8>::ForwardType x8)>
+               ::MakeItSo(storage->runnable_, CallbackForward(x1),
+                   CallbackForward(x2), CallbackForward(x3),
+                   CallbackForward(x4), CallbackForward(x5),
+                   CallbackForward(x6), CallbackForward(x7),
+                   CallbackForward(x8));
+  }
+};
+
+// Arity 8 -> 0.
+template <typename StorageType, typename R,typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6, typename X7,
+    typename X8>
+struct Invoker<8, StorageType, R(X1, X2, X3, X4, X5, X6, X7, X8)> {
+  typedef R(RunType)(BindStateBase*);
+
+  typedef R(UnboundRunType)();
+
+  static R Run(BindStateBase* base) {
+    StorageType* storage = static_cast<StorageType*>(base);
+
+    // Local references to make debugger stepping easier. If in a debugger,
+    // you really want to warp ahead and step through the
+    // InvokeHelper<>::MakeItSo() call below.
+    typedef typename StorageType::Bound1UnwrapTraits Bound1UnwrapTraits;
+    typedef typename StorageType::Bound2UnwrapTraits Bound2UnwrapTraits;
+    typedef typename StorageType::Bound3UnwrapTraits Bound3UnwrapTraits;
+    typedef typename StorageType::Bound4UnwrapTraits Bound4UnwrapTraits;
+    typedef typename StorageType::Bound5UnwrapTraits Bound5UnwrapTraits;
+    typedef typename StorageType::Bound6UnwrapTraits Bound6UnwrapTraits;
+    typedef typename StorageType::Bound7UnwrapTraits Bound7UnwrapTraits;
+    typedef typename StorageType::Bound8UnwrapTraits Bound8UnwrapTraits;
+
+    typename Bound1UnwrapTraits::ForwardType x1 =
+        Bound1UnwrapTraits::Unwrap(storage->p1_);
+    typename Bound2UnwrapTraits::ForwardType x2 =
+        Bound2UnwrapTraits::Unwrap(storage->p2_);
+    typename Bound3UnwrapTraits::ForwardType x3 =
+        Bound3UnwrapTraits::Unwrap(storage->p3_);
+    typename Bound4UnwrapTraits::ForwardType x4 =
+        Bound4UnwrapTraits::Unwrap(storage->p4_);
+    typename Bound5UnwrapTraits::ForwardType x5 =
+        Bound5UnwrapTraits::Unwrap(storage->p5_);
+    typename Bound6UnwrapTraits::ForwardType x6 =
+        Bound6UnwrapTraits::Unwrap(storage->p6_);
+    typename Bound7UnwrapTraits::ForwardType x7 =
+        Bound7UnwrapTraits::Unwrap(storage->p7_);
+    typename Bound8UnwrapTraits::ForwardType x8 =
+        Bound8UnwrapTraits::Unwrap(storage->p8_);
+    return InvokeHelper<StorageType::IsWeakCall::value, R,
+           typename StorageType::RunnableType,
+           void(typename Bound1UnwrapTraits::ForwardType,
+               typename Bound2UnwrapTraits::ForwardType,
+               typename Bound3UnwrapTraits::ForwardType,
+               typename Bound4UnwrapTraits::ForwardType,
+               typename Bound5UnwrapTraits::ForwardType,
+               typename Bound6UnwrapTraits::ForwardType,
+               typename Bound7UnwrapTraits::ForwardType,
+               typename Bound8UnwrapTraits::ForwardType)>
+               ::MakeItSo(storage->runnable_, CallbackForward(x1),
+                   CallbackForward(x2), CallbackForward(x3),
+                   CallbackForward(x4), CallbackForward(x5),
+                   CallbackForward(x6), CallbackForward(x7),
+                   CallbackForward(x8));
+  }
+};
 
 // BindState<>
 //
 // This stores all the state passed into Bind() and is also where most
 // of the template resolution magic occurs.
 //
 // Runnable is the functor we are binding arguments to.
 // RunType is type of the Run() function that the Invoker<> should use.
 // Normally, this is the same as the RunType of the Runnable, but it can
 // be different if an adapter like IgnoreResult() has been used.
@@ skipping 248 matching lines @@
   RunnableType runnable_;
   P1 p1_;
   P2 p2_;
   P3 p3_;
   P4 p4_;
   P5 p5_;
   P6 p6_;
   P7 p7_;
 };
 
+template <typename Runnable, typename RunType, typename P1, typename P2,
+    typename P3, typename P4, typename P5, typename P6, typename P7,
+    typename P8>
+struct BindState<Runnable, RunType, void(P1, P2, P3, P4, P5, P6,
+    P7, P8)> : public BindStateBase {
+  typedef Runnable RunnableType;
+  typedef IsWeakMethod<HasIsMethodTag<Runnable>::value, P1> IsWeakCall;
+  typedef Invoker<8, BindState, RunType> InvokerType;
+  typedef typename InvokerType::UnboundRunType UnboundRunType;
+
+  // Convenience typedefs for bound argument types.
+  typedef UnwrapTraits<P1> Bound1UnwrapTraits;
+  typedef UnwrapTraits<P2> Bound2UnwrapTraits;
+  typedef UnwrapTraits<P3> Bound3UnwrapTraits;
+  typedef UnwrapTraits<P4> Bound4UnwrapTraits;
+  typedef UnwrapTraits<P5> Bound5UnwrapTraits;
+  typedef UnwrapTraits<P6> Bound6UnwrapTraits;
+  typedef UnwrapTraits<P7> Bound7UnwrapTraits;
+  typedef UnwrapTraits<P8> Bound8UnwrapTraits;
+
+  BindState(const Runnable& runnable, const P1& p1, const P2& p2, const P3& p3,
+      const P4& p4, const P5& p5, const P6& p6, const P7& p7, const P8& p8)
+      : runnable_(runnable),
+        p1_(p1),
+        p2_(p2),
+        p3_(p3),
+        p4_(p4),
+        p5_(p5),
+        p6_(p6),
+        p7_(p7),
+        p8_(p8) {
+    MaybeRefcount<HasIsMethodTag<Runnable>::value, P1>::AddRef(p1_);
+  }
+
+  virtual ~BindState() {    MaybeRefcount<HasIsMethodTag<Runnable>::value,
+      P1>::Release(p1_);  }
+
+  RunnableType runnable_;
+  P1 p1_;
+  P2 p2_;
+  P3 p3_;
+  P4 p4_;
+  P5 p5_;
+  P6 p6_;
+  P7 p7_;
+  P8 p8_;
+};
+
 }  // namespace internal
 }  // namespace base
 
 #endif  // BASE_BIND_INTERNAL_H_