Increase Bind/Callback Arity from 6 -> 11: These go to eleven.

This is only for a build time stress test only. I will revert back to 6 after getting the data.

11 allows for binding of 11 arguments to a function, and 10 arguments to
a method. 10 seemed like a nice round number to try (MSVC's tr1::bind() only supports 10).

Template Growth rate (n == arity):
bind.h: n
bind_internal.h: (n^2 + 20n)/2
bind_internal_win.h: n
callback.h: n

Template growth equation: (n^2 + 26n) / 2

Template growth: 96 -> 203 types

BUG=98542
TEST=try bots.  Then we get to watch the bot cycle times.

Review URL: http://codereview.chromium.org/8682015

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@111410 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 3723 insertions, 0 deletions

diff --git a/base/bind_internal.h b/base/bind_internal.h
index 6c76d80..1187760 100644
--- a/base/bind_internal.h
+++ b/base/bind_internal.h
@@ -552,6 +552,437 @@ class RunnableAdapter<R(T::*)(A1, A2, A3, A4, A5, A6) const> {
   R (T::*method_)(A1, A2, A3, A4, A5, A6) const;
 };
 
+// Function: Arity 7.
+template <typename R, typename A1, typename A2, typename A3, typename A4,
+    typename A5, typename A6, typename A7>
+class RunnableAdapter<R(*)(A1, A2, A3, A4, A5, A6, A7)> {
+ public:
+  typedef R (RunType)(A1, A2, A3, A4, A5, A6, A7);
+
+  explicit RunnableAdapter(R(*function)(A1, A2, A3, A4, A5, A6, A7))
+      : 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) {
+    return function_(a1, a2, a3, a4, a5, a6, a7);
+  }
+
+ private:
+  R (*function_)(A1, A2, A3, A4, A5, A6, A7);
+};
+
+// Method: Arity 7.
+template <typename R, typename T, typename A1, typename A2, typename A3,
+    typename A4, typename A5, typename A6, typename A7>
+class RunnableAdapter<R(T::*)(A1, A2, A3, A4, A5, A6, A7)> {
+ public:
+  typedef R (RunType)(T*, A1, A2, A3, A4, A5, A6, A7);
+  typedef true_type IsMethod;
+
+  explicit RunnableAdapter(R(T::*method)(A1, A2, A3, A4, A5, A6, A7))
+      : 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) {
+    return (object->*method_)(a1, a2, a3, a4, a5, a6, a7);
+  }
+
+ private:
+  R (T::*method_)(A1, A2, A3, A4, A5, A6, A7);
+};
+
+// Const Method: Arity 7.
+template <typename R, typename T, typename A1, typename A2, typename A3,
+    typename A4, typename A5, typename A6, typename A7>
+class RunnableAdapter<R(T::*)(A1, A2, A3, A4, A5, A6, A7) const> {
+ public:
+  typedef R (RunType)(const T*, A1, A2, A3, A4, A5, A6, A7);
+  typedef true_type IsMethod;
+
+  explicit RunnableAdapter(R(T::*method)(A1, A2, A3, A4, A5, A6, A7) 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) {
+    return (object->*method_)(a1, a2, a3, a4, a5, a6, 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_(a1, a2, a3, a4, a5, a6, a7, 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_)(a1, a2, a3, a4, a5, a6, a7, 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_)(a1, a2, a3, a4, a5, a6, a7, a8);
+  }
+
+ private:
+  R (T::*method_)(A1, A2, A3, A4, A5, A6, A7, A8) const;
+};
+
+// Function: Arity 9.
+template <typename R, typename A1, typename A2, typename A3, typename A4,
+    typename A5, typename A6, typename A7, typename A8, typename A9>
+class RunnableAdapter<R(*)(A1, A2, A3, A4, A5, A6, A7, A8, A9)> {
+ public:
+  typedef R (RunType)(A1, A2, A3, A4, A5, A6, A7, A8, A9);
+
+  explicit RunnableAdapter(R(*function)(A1, A2, A3, A4, A5, A6, A7, A8, A9))
+      : 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,
+      typename CallbackParamTraits<A9>::ForwardType a9) {
+    return function_(a1, a2, a3, a4, a5, a6, a7, a8, a9);
+  }
+
+ private:
+  R (*function_)(A1, A2, A3, A4, A5, A6, A7, A8, A9);
+};
+
+// Method: Arity 9.
+template <typename R, typename T, typename A1, typename A2, typename A3,
+    typename A4, typename A5, typename A6, typename A7, typename A8,
+    typename A9>
+class RunnableAdapter<R(T::*)(A1, A2, A3, A4, A5, A6, A7, A8, A9)> {
+ public:
+  typedef R (RunType)(T*, A1, A2, A3, A4, A5, A6, A7, A8, A9);
+  typedef true_type IsMethod;
+
+  explicit RunnableAdapter(R(T::*method)(A1, A2, A3, A4, A5, A6, A7, A8, A9))
+      : 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,
+      typename CallbackParamTraits<A9>::ForwardType a9) {
+    return (object->*method_)(a1, a2, a3, a4, a5, a6, a7, a8, a9);
+  }
+
+ private:
+  R (T::*method_)(A1, A2, A3, A4, A5, A6, A7, A8, A9);
+};
+
+// Const Method: Arity 9.
+template <typename R, typename T, typename A1, typename A2, typename A3,
+    typename A4, typename A5, typename A6, typename A7, typename A8,
+    typename A9>
+class RunnableAdapter<R(T::*)(A1, A2, A3, A4, A5, A6, A7, A8, A9) const> {
+ public:
+  typedef R (RunType)(const T*, A1, A2, A3, A4, A5, A6, A7, A8, A9);
+  typedef true_type IsMethod;
+
+  explicit RunnableAdapter(R(T::*method)(A1, A2, A3, A4, A5, A6, A7, A8,
+      A9) 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,
+      typename CallbackParamTraits<A9>::ForwardType a9) {
+    return (object->*method_)(a1, a2, a3, a4, a5, a6, a7, a8, a9);
+  }
+
+ private:
+  R (T::*method_)(A1, A2, A3, A4, A5, A6, A7, A8, A9) const;
+};
+
+// Function: Arity 10.
+template <typename R, typename A1, typename A2, typename A3, typename A4,
+    typename A5, typename A6, typename A7, typename A8, typename A9,
+    typename A10>
+class RunnableAdapter<R(*)(A1, A2, A3, A4, A5, A6, A7, A8, A9, A10)> {
+ public:
+  typedef R (RunType)(A1, A2, A3, A4, A5, A6, A7, A8, A9, A10);
+
+  explicit RunnableAdapter(R(*function)(A1, A2, A3, A4, A5, A6, A7, A8, A9,
+      A10))
+      : 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,
+      typename CallbackParamTraits<A9>::ForwardType a9,
+      typename CallbackParamTraits<A10>::ForwardType a10) {
+    return function_(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10);
+  }
+
+ private:
+  R (*function_)(A1, A2, A3, A4, A5, A6, A7, A8, A9, A10);
+};
+
+// Method: Arity 10.
+template <typename R, typename T, typename A1, typename A2, typename A3,
+    typename A4, typename A5, typename A6, typename A7, typename A8,
+    typename A9, typename A10>
+class RunnableAdapter<R(T::*)(A1, A2, A3, A4, A5, A6, A7, A8, A9, A10)> {
+ public:
+  typedef R (RunType)(T*, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10);
+  typedef true_type IsMethod;
+
+  explicit RunnableAdapter(R(T::*method)(A1, A2, A3, A4, A5, A6, A7, A8, A9,
+      A10))
+      : 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,
+      typename CallbackParamTraits<A9>::ForwardType a9,
+      typename CallbackParamTraits<A10>::ForwardType a10) {
+    return (object->*method_)(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10);
+  }
+
+ private:
+  R (T::*method_)(A1, A2, A3, A4, A5, A6, A7, A8, A9, A10);
+};
+
+// Const Method: Arity 10.
+template <typename R, typename T, typename A1, typename A2, typename A3,
+    typename A4, typename A5, typename A6, typename A7, typename A8,
+    typename A9, typename A10>
+class RunnableAdapter<R(T::*)(A1, A2, A3, A4, A5, A6, A7, A8, A9, A10) const> {
+ public:
+  typedef R (RunType)(const T*, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10);
+  typedef true_type IsMethod;
+
+  explicit RunnableAdapter(R(T::*method)(A1, A2, A3, A4, A5, A6, A7, A8, A9,
+      A10) 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,
+      typename CallbackParamTraits<A9>::ForwardType a9,
+      typename CallbackParamTraits<A10>::ForwardType a10) {
+    return (object->*method_)(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10);
+  }
+
+ private:
+  R (T::*method_)(A1, A2, A3, A4, A5, A6, A7, A8, A9, A10) const;
+};
+
+// Function: Arity 11.
+template <typename R, typename A1, typename A2, typename A3, typename A4,
+    typename A5, typename A6, typename A7, typename A8, typename A9,
+    typename A10, typename A11>
+class RunnableAdapter<R(*)(A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11)> {
+ public:
+  typedef R (RunType)(A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11);
+
+  explicit RunnableAdapter(R(*function)(A1, A2, A3, A4, A5, A6, A7, A8, A9,
+      A10, A11))
+      : 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,
+      typename CallbackParamTraits<A9>::ForwardType a9,
+      typename CallbackParamTraits<A10>::ForwardType a10,
+      typename CallbackParamTraits<A11>::ForwardType a11) {
+    return function_(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11);
+  }
+
+ private:
+  R (*function_)(A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11);
+};
+
+// Method: Arity 11.
+template <typename R, typename T, typename A1, typename A2, typename A3,
+    typename A4, typename A5, typename A6, typename A7, typename A8,
+    typename A9, typename A10, typename A11>
+class RunnableAdapter<R(T::*)(A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11)> {
+ public:
+  typedef R (RunType)(T*, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11);
+  typedef true_type IsMethod;
+
+  explicit RunnableAdapter(R(T::*method)(A1, A2, A3, A4, A5, A6, A7, A8, A9,
+      A10, A11))
+      : 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,
+      typename CallbackParamTraits<A9>::ForwardType a9,
+      typename CallbackParamTraits<A10>::ForwardType a10,
+      typename CallbackParamTraits<A11>::ForwardType a11) {
+    return (object->*method_)(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11);
+  }
+
+ private:
+  R (T::*method_)(A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11);
+};
+
+// Const Method: Arity 11.
+template <typename R, typename T, typename A1, typename A2, typename A3,
+    typename A4, typename A5, typename A6, typename A7, typename A8,
+    typename A9, typename A10, typename A11>
+class RunnableAdapter<R(T::*)(A1, A2, A3, A4, A5, A6, A7, A8, A9, A10,
+    A11) const> {
+ public:
+  typedef R (RunType)(const T*, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11);
+  typedef true_type IsMethod;
+
+  explicit RunnableAdapter(R(T::*method)(A1, A2, A3, A4, A5, A6, A7, A8, A9,
+      A10, A11) 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,
+      typename CallbackParamTraits<A9>::ForwardType a9,
+      typename CallbackParamTraits<A10>::ForwardType a10,
+      typename CallbackParamTraits<A11>::ForwardType a11) {
+    return (object->*method_)(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11);
+  }
+
+ private:
+  R (T::*method_)(A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11) const;
+};
+
 
 // FunctionTraits<>
 //
@@ -617,6 +1048,83 @@ struct FunctionTraits<R(A1, A2, A3, A4, A5, A6)> {
   typedef A6 A6Type;
 };
 
+template <typename R, typename A1, typename A2, typename A3, typename A4,
+    typename A5, typename A6, typename A7>
+struct FunctionTraits<R(A1, A2, A3, A4, A5, A6, A7)> {
+  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;
+};
+
+template <typename R, typename A1, typename A2, typename A3, typename A4,
+    typename A5, typename A6, typename A7, typename A8, typename A9>
+struct FunctionTraits<R(A1, A2, A3, A4, A5, A6, A7, A8, A9)> {
+  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;
+  typedef A9 A9Type;
+};
+
+template <typename R, typename A1, typename A2, typename A3, typename A4,
+    typename A5, typename A6, typename A7, typename A8, typename A9,
+    typename A10>
+struct FunctionTraits<R(A1, A2, A3, A4, A5, A6, A7, A8, A9, A10)> {
+  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;
+  typedef A9 A9Type;
+  typedef A10 A10Type;
+};
+
+template <typename R, typename A1, typename A2, typename A3, typename A4,
+    typename A5, typename A6, typename A7, typename A8, typename A9,
+    typename A10, typename A11>
+struct FunctionTraits<R(A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11)> {
+  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;
+  typedef A9 A9Type;
+  typedef A10 A10Type;
+  typedef A11 A11Type;
+};
+
 
 // ForceVoidReturn<>
 //
@@ -661,6 +1169,38 @@ 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);
+};
+
+template <typename R, typename A1, typename A2, typename A3, typename A4,
+    typename A5, typename A6, typename A7, typename A8, typename A9>
+struct ForceVoidReturn<R(A1, A2, A3, A4, A5, A6, A7, A8, A9)> {
+  typedef void(RunType)(A1, A2, A3, A4, A5, A6, A7, A8, A9);
+};
+
+template <typename R, typename A1, typename A2, typename A3, typename A4,
+    typename A5, typename A6, typename A7, typename A8, typename A9,
+    typename A10>
+struct ForceVoidReturn<R(A1, A2, A3, A4, A5, A6, A7, A8, A9, A10)> {
+  typedef void(RunType)(A1, A2, A3, A4, A5, A6, A7, A8, A9, A10);
+};
+
+template <typename R, typename A1, typename A2, typename A3, typename A4,
+    typename A5, typename A6, typename A7, typename A8, typename A9,
+    typename A10, typename A11>
+struct ForceVoidReturn<R(A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11)> {
+  typedef void(RunType)(A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11);
+};
+
 
 // FunctorTraits<>
 //
@@ -924,6 +1464,185 @@ struct InvokeHelper<true, void, Runnable,
   }
 };
 
+template <typename ReturnType, typename Runnable,typename A1, typename A2,
+    typename A3, typename A4, typename A5, typename A6, typename A7>
+struct InvokeHelper<false, ReturnType, Runnable,
+    void(A1, A2, A3, A4, A5, A6, A7)>  {
+  static ReturnType MakeItSo(Runnable runnable, A1 a1, A2 a2, A3 a3, A4 a4,
+      A5 a5, A6 a6, A7 a7) {
+    return runnable.Run(a1, a2, a3, a4, a5, a6, a7);
+  }
+};
+
+template <typename Runnable,typename A1, typename A2, typename A3, typename A4,
+    typename A5, typename A6, typename A7>
+struct InvokeHelper<false, void, Runnable,
+    void(A1, A2, A3, A4, A5, A6, A7)>  {
+  static void MakeItSo(Runnable runnable, A1 a1, A2 a2, A3 a3, A4 a4, A5 a5,
+      A6 a6, A7 a7) {
+    runnable.Run(a1, a2, a3, a4, a5, a6, a7);
+  }
+};
+
+template <typename Runnable, typename A1, typename A2, typename A3,
+    typename A4, typename A5, typename A6, typename A7>
+struct InvokeHelper<true, void, Runnable,
+    void(A1, A2, A3, A4, A5, A6, A7)>  {
+  static void MakeItSo(Runnable runnable, A1 a1, A2 a2, A3 a3, A4 a4, A5 a5,
+      A6 a6, A7 a7) {
+    if (!a1.get()) {
+      return;
+    }
+
+    runnable.Run(a1, a2, a3, a4, a5, a6, 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(a1, a2, a3, a4, a5, a6, a7, 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(a1, a2, a3, a4, a5, a6, a7, 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(a1, a2, a3, a4, a5, a6, a7, a8);
+  }
+};
+
+template <typename ReturnType, typename Runnable,typename A1, typename A2,
+    typename A3, typename A4, typename A5, typename A6, typename A7,
+    typename A8, typename A9>
+struct InvokeHelper<false, ReturnType, Runnable,
+    void(A1, A2, A3, A4, A5, A6, A7, A8, A9)>  {
+  static ReturnType MakeItSo(Runnable runnable, A1 a1, A2 a2, A3 a3, A4 a4,
+      A5 a5, A6 a6, A7 a7, A8 a8, A9 a9) {
+    return runnable.Run(a1, a2, a3, a4, a5, a6, a7, a8, a9);
+  }
+};
+
+template <typename Runnable,typename A1, typename A2, typename A3, typename A4,
+    typename A5, typename A6, typename A7, typename A8, typename A9>
+struct InvokeHelper<false, void, Runnable,
+    void(A1, A2, A3, A4, A5, A6, A7, A8, A9)>  {
+  static void MakeItSo(Runnable runnable, A1 a1, A2 a2, A3 a3, A4 a4, A5 a5,
+      A6 a6, A7 a7, A8 a8, A9 a9) {
+    runnable.Run(a1, a2, a3, a4, a5, a6, a7, a8, a9);
+  }
+};
+
+template <typename Runnable, typename A1, typename A2, typename A3,
+    typename A4, typename A5, typename A6, typename A7, typename A8,
+    typename A9>
+struct InvokeHelper<true, void, Runnable,
+    void(A1, A2, A3, A4, A5, A6, A7, A8, A9)>  {
+  static void MakeItSo(Runnable runnable, A1 a1, A2 a2, A3 a3, A4 a4, A5 a5,
+      A6 a6, A7 a7, A8 a8, A9 a9) {
+    if (!a1.get()) {
+      return;
+    }
+
+    runnable.Run(a1, a2, a3, a4, a5, a6, a7, a8, a9);
+  }
+};
+
+template <typename ReturnType, typename Runnable,typename A1, typename A2,
+    typename A3, typename A4, typename A5, typename A6, typename A7,
+    typename A8, typename A9, typename A10>
+struct InvokeHelper<false, ReturnType, Runnable,
+    void(A1, A2, A3, A4, A5, A6, A7, A8, A9, A10)>  {
+  static ReturnType MakeItSo(Runnable runnable, A1 a1, A2 a2, A3 a3, A4 a4,
+      A5 a5, A6 a6, A7 a7, A8 a8, A9 a9, A10 a10) {
+    return runnable.Run(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10);
+  }
+};
+
+template <typename Runnable,typename A1, typename A2, typename A3, typename A4,
+    typename A5, typename A6, typename A7, typename A8, typename A9,
+    typename A10>
+struct InvokeHelper<false, void, Runnable,
+    void(A1, A2, A3, A4, A5, A6, A7, A8, A9, A10)>  {
+  static void MakeItSo(Runnable runnable, A1 a1, A2 a2, A3 a3, A4 a4, A5 a5,
+      A6 a6, A7 a7, A8 a8, A9 a9, A10 a10) {
+    runnable.Run(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10);
+  }
+};
+
+template <typename Runnable, typename A1, typename A2, typename A3,
+    typename A4, typename A5, typename A6, typename A7, typename A8,
+    typename A9, typename A10>
+struct InvokeHelper<true, void, Runnable,
+    void(A1, A2, A3, A4, A5, A6, A7, A8, A9, A10)>  {
+  static void MakeItSo(Runnable runnable, A1 a1, A2 a2, A3 a3, A4 a4, A5 a5,
+      A6 a6, A7 a7, A8 a8, A9 a9, A10 a10) {
+    if (!a1.get()) {
+      return;
+    }
+
+    runnable.Run(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10);
+  }
+};
+
+template <typename ReturnType, typename Runnable,typename A1, typename A2,
+    typename A3, typename A4, typename A5, typename A6, typename A7,
+    typename A8, typename A9, typename A10, typename A11>
+struct InvokeHelper<false, ReturnType, Runnable,
+    void(A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11)>  {
+  static ReturnType MakeItSo(Runnable runnable, A1 a1, A2 a2, A3 a3, A4 a4,
+      A5 a5, A6 a6, A7 a7, A8 a8, A9 a9, A10 a10, A11 a11) {
+    return runnable.Run(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11);
+  }
+};
+
+template <typename Runnable,typename A1, typename A2, typename A3, typename A4,
+    typename A5, typename A6, typename A7, typename A8, typename A9,
+    typename A10, typename A11>
+struct InvokeHelper<false, void, Runnable,
+    void(A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11)>  {
+  static void MakeItSo(Runnable runnable, A1 a1, A2 a2, A3 a3, A4 a4, A5 a5,
+      A6 a6, A7 a7, A8 a8, A9 a9, A10 a10, A11 a11) {
+    runnable.Run(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11);
+  }
+};
+
+template <typename Runnable, typename A1, typename A2, typename A3,
+    typename A4, typename A5, typename A6, typename A7, typename A8,
+    typename A9, typename A10, typename A11>
+struct InvokeHelper<true, void, Runnable,
+    void(A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11)>  {
+  static void MakeItSo(Runnable runnable, A1 a1, A2 a2, A3 a3, A4 a4, A5 a5,
+      A6 a6, A7 a7, A8 a8, A9 a9, A10 a10, A11 a11) {
+    if (!a1.get()) {
+      return;
+    }
+
+    runnable.Run(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11);
+  }
+};
+
 #if !defined(_MSC_VER)
 
 template <typename ReturnType, typename Runnable, typename ArgsType>
@@ -1918,6 +2637,2753 @@ struct Invoker<6, StorageType, R(X1, X2, X3, X4, X5, X6)> {
   }
 };
 
+// Arity 7 -> 7.
+template <typename StorageType, typename R,typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6, typename X7>
+struct Invoker<0, StorageType, R(X1, X2, X3, X4, X5, X6, X7)> {
+  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);
+
+  typedef R(UnboundRunType)(X1, X2, X3, X4, X5, X6, X7);
+
+  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) {
+    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)>
+               ::MakeItSo(storage->runnable_, x1, x2, x3, x4, x5, x6, x7);
+  }
+};
+
+// Arity 7 -> 6.
+template <typename StorageType, typename R,typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6, typename X7>
+struct Invoker<1, StorageType, R(X1, X2, X3, X4, X5, X6, X7)> {
+  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);
+
+  typedef R(UnboundRunType)(X2, X3, X4, X5, X6, X7);
+
+  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) {
+    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)>
+               ::MakeItSo(storage->runnable_, x1, x2, x3, x4, x5, x6, x7);
+  }
+};
+
+// Arity 7 -> 5.
+template <typename StorageType, typename R,typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6, typename X7>
+struct Invoker<2, StorageType, R(X1, X2, X3, X4, X5, X6, X7)> {
+  typedef R(RunType)(BindStateBase*,
+      typename CallbackParamTraits<X3>::ForwardType,
+      typename CallbackParamTraits<X4>::ForwardType,
+      typename CallbackParamTraits<X5>::ForwardType,
+      typename CallbackParamTraits<X6>::ForwardType,
+      typename CallbackParamTraits<X7>::ForwardType);
+
+  typedef R(UnboundRunType)(X3, X4, X5, X6, X7);
+
+  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) {
+    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)>
+               ::MakeItSo(storage->runnable_, x1, x2, x3, x4, x5, x6, x7);
+  }
+};
+
+// Arity 7 -> 4.
+template <typename StorageType, typename R,typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6, typename X7>
+struct Invoker<3, StorageType, R(X1, X2, X3, X4, X5, X6, X7)> {
+  typedef R(RunType)(BindStateBase*,
+      typename CallbackParamTraits<X4>::ForwardType,
+      typename CallbackParamTraits<X5>::ForwardType,
+      typename CallbackParamTraits<X6>::ForwardType,
+      typename CallbackParamTraits<X7>::ForwardType);
+
+  typedef R(UnboundRunType)(X4, X5, X6, X7);
+
+  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) {
+    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)>
+               ::MakeItSo(storage->runnable_, x1, x2, x3, x4, x5, x6, x7);
+  }
+};
+
+// Arity 7 -> 3.
+template <typename StorageType, typename R,typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6, typename X7>
+struct Invoker<4, StorageType, R(X1, X2, X3, X4, X5, X6, X7)> {
+  typedef R(RunType)(BindStateBase*,
+      typename CallbackParamTraits<X5>::ForwardType,
+      typename CallbackParamTraits<X6>::ForwardType,
+      typename CallbackParamTraits<X7>::ForwardType);
+
+  typedef R(UnboundRunType)(X5, X6, X7);
+
+  static R Run(BindStateBase* base,
+      typename CallbackParamTraits<X5>::ForwardType x5,
+      typename CallbackParamTraits<X6>::ForwardType x6,
+      typename CallbackParamTraits<X7>::ForwardType x7) {
+    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)>
+               ::MakeItSo(storage->runnable_, x1, x2, x3, x4, x5, x6, x7);
+  }
+};
+
+// Arity 7 -> 2.
+template <typename StorageType, typename R,typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6, typename X7>
+struct Invoker<5, StorageType, R(X1, X2, X3, X4, X5, X6, X7)> {
+  typedef R(RunType)(BindStateBase*,
+      typename CallbackParamTraits<X6>::ForwardType,
+      typename CallbackParamTraits<X7>::ForwardType);
+
+  typedef R(UnboundRunType)(X6, X7);
+
+  static R Run(BindStateBase* base,
+      typename CallbackParamTraits<X6>::ForwardType x6,
+      typename CallbackParamTraits<X7>::ForwardType x7) {
+    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)>
+               ::MakeItSo(storage->runnable_, x1, x2, x3, x4, x5, x6, x7);
+  }
+};
+
+// Arity 7 -> 1.
+template <typename StorageType, typename R,typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6, typename X7>
+struct Invoker<6, StorageType, R(X1, X2, X3, X4, X5, X6, X7)> {
+  typedef R(RunType)(BindStateBase*,
+      typename CallbackParamTraits<X7>::ForwardType);
+
+  typedef R(UnboundRunType)(X7);
+
+  static R Run(BindStateBase* base,
+      typename CallbackParamTraits<X7>::ForwardType x7) {
+    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)>
+               ::MakeItSo(storage->runnable_, x1, x2, x3, x4, x5, x6, x7);
+  }
+};
+
+// Arity 7 -> 0.
+template <typename StorageType, typename R,typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6, typename X7>
+struct Invoker<7, StorageType, R(X1, X2, X3, X4, X5, X6, X7)> {
+  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;
+
+    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)>
+               ::MakeItSo(storage->runnable_, x1, x2, x3, x4, x5, x6, 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_, x1, x2, x3, x4, x5, x6, x7, 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_, x1, x2, x3, x4, x5, x6, x7, 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_, x1, x2, x3, x4, x5, x6, x7, 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_, x1, x2, x3, x4, x5, x6, x7, 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_, x1, x2, x3, x4, x5, x6, x7, 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_, x1, x2, x3, x4, x5, x6, x7, 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_, x1, x2, x3, x4, x5, x6, x7, 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_, x1, x2, x3, x4, x5, x6, x7, 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_, x1, x2, x3, x4, x5, x6, x7, x8);
+  }
+};
+
+// Arity 9 -> 9.
+template <typename StorageType, typename R,typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6, typename X7,
+    typename X8, typename X9>
+struct Invoker<0, StorageType, R(X1, X2, X3, X4, X5, X6, X7, X8, X9)> {
+  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,
+      typename CallbackParamTraits<X9>::ForwardType);
+
+  typedef R(UnboundRunType)(X1, X2, X3, X4, X5, X6, X7, X8, X9);
+
+  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,
+      typename CallbackParamTraits<X9>::ForwardType x9) {
+    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,
+               typename CallbackParamTraits<X9>::ForwardType x9)>
+               ::MakeItSo(storage->runnable_, x1, x2, x3, x4, x5, x6, x7, x8,
+                   x9);
+  }
+};
+
+// Arity 9 -> 8.
+template <typename StorageType, typename R,typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6, typename X7,
+    typename X8, typename X9>
+struct Invoker<1, StorageType, R(X1, X2, X3, X4, X5, X6, X7, X8, X9)> {
+  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,
+      typename CallbackParamTraits<X9>::ForwardType);
+
+  typedef R(UnboundRunType)(X2, X3, X4, X5, X6, X7, X8, X9);
+
+  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,
+      typename CallbackParamTraits<X9>::ForwardType x9) {
+    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,
+               typename CallbackParamTraits<X9>::ForwardType x9)>
+               ::MakeItSo(storage->runnable_, x1, x2, x3, x4, x5, x6, x7, x8,
+                   x9);
+  }
+};
+
+// Arity 9 -> 7.
+template <typename StorageType, typename R,typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6, typename X7,
+    typename X8, typename X9>
+struct Invoker<2, StorageType, R(X1, X2, X3, X4, X5, X6, X7, X8, X9)> {
+  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,
+      typename CallbackParamTraits<X9>::ForwardType);
+
+  typedef R(UnboundRunType)(X3, X4, X5, X6, X7, X8, X9);
+
+  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,
+      typename CallbackParamTraits<X9>::ForwardType x9) {
+    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,
+               typename CallbackParamTraits<X9>::ForwardType x9)>
+               ::MakeItSo(storage->runnable_, x1, x2, x3, x4, x5, x6, x7, x8,
+                   x9);
+  }
+};
+
+// Arity 9 -> 6.
+template <typename StorageType, typename R,typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6, typename X7,
+    typename X8, typename X9>
+struct Invoker<3, StorageType, R(X1, X2, X3, X4, X5, X6, X7, X8, X9)> {
+  typedef R(RunType)(BindStateBase*,
+      typename CallbackParamTraits<X4>::ForwardType,
+      typename CallbackParamTraits<X5>::ForwardType,
+      typename CallbackParamTraits<X6>::ForwardType,
+      typename CallbackParamTraits<X7>::ForwardType,
+      typename CallbackParamTraits<X8>::ForwardType,
+      typename CallbackParamTraits<X9>::ForwardType);
+
+  typedef R(UnboundRunType)(X4, X5, X6, X7, X8, X9);
+
+  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,
+      typename CallbackParamTraits<X9>::ForwardType x9) {
+    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,
+               typename CallbackParamTraits<X9>::ForwardType x9)>
+               ::MakeItSo(storage->runnable_, x1, x2, x3, x4, x5, x6, x7, x8,
+                   x9);
+  }
+};
+
+// Arity 9 -> 5.
+template <typename StorageType, typename R,typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6, typename X7,
+    typename X8, typename X9>
+struct Invoker<4, StorageType, R(X1, X2, X3, X4, X5, X6, X7, X8, X9)> {
+  typedef R(RunType)(BindStateBase*,
+      typename CallbackParamTraits<X5>::ForwardType,
+      typename CallbackParamTraits<X6>::ForwardType,
+      typename CallbackParamTraits<X7>::ForwardType,
+      typename CallbackParamTraits<X8>::ForwardType,
+      typename CallbackParamTraits<X9>::ForwardType);
+
+  typedef R(UnboundRunType)(X5, X6, X7, X8, X9);
+
+  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,
+      typename CallbackParamTraits<X9>::ForwardType x9) {
+    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,
+               typename CallbackParamTraits<X9>::ForwardType x9)>
+               ::MakeItSo(storage->runnable_, x1, x2, x3, x4, x5, x6, x7, x8,
+                   x9);
+  }
+};
+
+// Arity 9 -> 4.
+template <typename StorageType, typename R,typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6, typename X7,
+    typename X8, typename X9>
+struct Invoker<5, StorageType, R(X1, X2, X3, X4, X5, X6, X7, X8, X9)> {
+  typedef R(RunType)(BindStateBase*,
+      typename CallbackParamTraits<X6>::ForwardType,
+      typename CallbackParamTraits<X7>::ForwardType,
+      typename CallbackParamTraits<X8>::ForwardType,
+      typename CallbackParamTraits<X9>::ForwardType);
+
+  typedef R(UnboundRunType)(X6, X7, X8, X9);
+
+  static R Run(BindStateBase* base,
+      typename CallbackParamTraits<X6>::ForwardType x6,
+      typename CallbackParamTraits<X7>::ForwardType x7,
+      typename CallbackParamTraits<X8>::ForwardType x8,
+      typename CallbackParamTraits<X9>::ForwardType x9) {
+    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,
+               typename CallbackParamTraits<X9>::ForwardType x9)>
+               ::MakeItSo(storage->runnable_, x1, x2, x3, x4, x5, x6, x7, x8,
+                   x9);
+  }
+};
+
+// Arity 9 -> 3.
+template <typename StorageType, typename R,typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6, typename X7,
+    typename X8, typename X9>
+struct Invoker<6, StorageType, R(X1, X2, X3, X4, X5, X6, X7, X8, X9)> {
+  typedef R(RunType)(BindStateBase*,
+      typename CallbackParamTraits<X7>::ForwardType,
+      typename CallbackParamTraits<X8>::ForwardType,
+      typename CallbackParamTraits<X9>::ForwardType);
+
+  typedef R(UnboundRunType)(X7, X8, X9);
+
+  static R Run(BindStateBase* base,
+      typename CallbackParamTraits<X7>::ForwardType x7,
+      typename CallbackParamTraits<X8>::ForwardType x8,
+      typename CallbackParamTraits<X9>::ForwardType x9) {
+    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,
+               typename CallbackParamTraits<X9>::ForwardType x9)>
+               ::MakeItSo(storage->runnable_, x1, x2, x3, x4, x5, x6, x7, x8,
+                   x9);
+  }
+};
+
+// Arity 9 -> 2.
+template <typename StorageType, typename R,typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6, typename X7,
+    typename X8, typename X9>
+struct Invoker<7, StorageType, R(X1, X2, X3, X4, X5, X6, X7, X8, X9)> {
+  typedef R(RunType)(BindStateBase*,
+      typename CallbackParamTraits<X8>::ForwardType,
+      typename CallbackParamTraits<X9>::ForwardType);
+
+  typedef R(UnboundRunType)(X8, X9);
+
+  static R Run(BindStateBase* base,
+      typename CallbackParamTraits<X8>::ForwardType x8,
+      typename CallbackParamTraits<X9>::ForwardType x9) {
+    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,
+               typename CallbackParamTraits<X9>::ForwardType x9)>
+               ::MakeItSo(storage->runnable_, x1, x2, x3, x4, x5, x6, x7, x8,
+                   x9);
+  }
+};
+
+// Arity 9 -> 1.
+template <typename StorageType, typename R,typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6, typename X7,
+    typename X8, typename X9>
+struct Invoker<8, StorageType, R(X1, X2, X3, X4, X5, X6, X7, X8, X9)> {
+  typedef R(RunType)(BindStateBase*,
+      typename CallbackParamTraits<X9>::ForwardType);
+
+  typedef R(UnboundRunType)(X9);
+
+  static R Run(BindStateBase* base,
+      typename CallbackParamTraits<X9>::ForwardType x9) {
+    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,
+               typename CallbackParamTraits<X9>::ForwardType x9)>
+               ::MakeItSo(storage->runnable_, x1, x2, x3, x4, x5, x6, x7, x8,
+                   x9);
+  }
+};
+
+// Arity 9 -> 0.
+template <typename StorageType, typename R,typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6, typename X7,
+    typename X8, typename X9>
+struct Invoker<9, StorageType, R(X1, X2, X3, X4, X5, X6, X7, X8, X9)> {
+  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;
+    typedef typename StorageType::Bound9UnwrapTraits Bound9UnwrapTraits;
+
+    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_);
+    typename Bound9UnwrapTraits::ForwardType x9 =
+        Bound9UnwrapTraits::Unwrap(storage->p9_);
+    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,
+               typename Bound9UnwrapTraits::ForwardType)>
+               ::MakeItSo(storage->runnable_, x1, x2, x3, x4, x5, x6, x7, x8,
+                   x9);
+  }
+};
+
+// Arity 10 -> 10.
+template <typename StorageType, typename R,typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6, typename X7,
+    typename X8, typename X9, typename X10>
+struct Invoker<0, StorageType, R(X1, X2, X3, X4, X5, X6, X7, X8, X9, X10)> {
+  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,
+      typename CallbackParamTraits<X9>::ForwardType,
+      typename CallbackParamTraits<X10>::ForwardType);
+
+  typedef R(UnboundRunType)(X1, X2, X3, X4, X5, X6, X7, X8, X9, X10);
+
+  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,
+      typename CallbackParamTraits<X9>::ForwardType x9,
+      typename CallbackParamTraits<X10>::ForwardType x10) {
+    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,
+               typename CallbackParamTraits<X9>::ForwardType x9,
+               typename CallbackParamTraits<X10>::ForwardType x10)>
+               ::MakeItSo(storage->runnable_, x1, x2, x3, x4, x5, x6, x7, x8,
+                   x9, x10);
+  }
+};
+
+// Arity 10 -> 9.
+template <typename StorageType, typename R,typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6, typename X7,
+    typename X8, typename X9, typename X10>
+struct Invoker<1, StorageType, R(X1, X2, X3, X4, X5, X6, X7, X8, X9, X10)> {
+  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,
+      typename CallbackParamTraits<X9>::ForwardType,
+      typename CallbackParamTraits<X10>::ForwardType);
+
+  typedef R(UnboundRunType)(X2, X3, X4, X5, X6, X7, X8, X9, X10);
+
+  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,
+      typename CallbackParamTraits<X9>::ForwardType x9,
+      typename CallbackParamTraits<X10>::ForwardType x10) {
+    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,
+               typename CallbackParamTraits<X9>::ForwardType x9,
+               typename CallbackParamTraits<X10>::ForwardType x10)>
+               ::MakeItSo(storage->runnable_, x1, x2, x3, x4, x5, x6, x7, x8,
+                   x9, x10);
+  }
+};
+
+// Arity 10 -> 8.
+template <typename StorageType, typename R,typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6, typename X7,
+    typename X8, typename X9, typename X10>
+struct Invoker<2, StorageType, R(X1, X2, X3, X4, X5, X6, X7, X8, X9, X10)> {
+  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,
+      typename CallbackParamTraits<X9>::ForwardType,
+      typename CallbackParamTraits<X10>::ForwardType);
+
+  typedef R(UnboundRunType)(X3, X4, X5, X6, X7, X8, X9, X10);
+
+  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,
+      typename CallbackParamTraits<X9>::ForwardType x9,
+      typename CallbackParamTraits<X10>::ForwardType x10) {
+    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,
+               typename CallbackParamTraits<X9>::ForwardType x9,
+               typename CallbackParamTraits<X10>::ForwardType x10)>
+               ::MakeItSo(storage->runnable_, x1, x2, x3, x4, x5, x6, x7, x8,
+                   x9, x10);
+  }
+};
+
+// Arity 10 -> 7.
+template <typename StorageType, typename R,typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6, typename X7,
+    typename X8, typename X9, typename X10>
+struct Invoker<3, StorageType, R(X1, X2, X3, X4, X5, X6, X7, X8, X9, X10)> {
+  typedef R(RunType)(BindStateBase*,
+      typename CallbackParamTraits<X4>::ForwardType,
+      typename CallbackParamTraits<X5>::ForwardType,
+      typename CallbackParamTraits<X6>::ForwardType,
+      typename CallbackParamTraits<X7>::ForwardType,
+      typename CallbackParamTraits<X8>::ForwardType,
+      typename CallbackParamTraits<X9>::ForwardType,
+      typename CallbackParamTraits<X10>::ForwardType);
+
+  typedef R(UnboundRunType)(X4, X5, X6, X7, X8, X9, X10);
+
+  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,
+      typename CallbackParamTraits<X9>::ForwardType x9,
+      typename CallbackParamTraits<X10>::ForwardType x10) {
+    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,
+               typename CallbackParamTraits<X9>::ForwardType x9,
+               typename CallbackParamTraits<X10>::ForwardType x10)>
+               ::MakeItSo(storage->runnable_, x1, x2, x3, x4, x5, x6, x7, x8,
+                   x9, x10);
+  }
+};
+
+// Arity 10 -> 6.
+template <typename StorageType, typename R,typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6, typename X7,
+    typename X8, typename X9, typename X10>
+struct Invoker<4, StorageType, R(X1, X2, X3, X4, X5, X6, X7, X8, X9, X10)> {
+  typedef R(RunType)(BindStateBase*,
+      typename CallbackParamTraits<X5>::ForwardType,
+      typename CallbackParamTraits<X6>::ForwardType,
+      typename CallbackParamTraits<X7>::ForwardType,
+      typename CallbackParamTraits<X8>::ForwardType,
+      typename CallbackParamTraits<X9>::ForwardType,
+      typename CallbackParamTraits<X10>::ForwardType);
+
+  typedef R(UnboundRunType)(X5, X6, X7, X8, X9, X10);
+
+  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,
+      typename CallbackParamTraits<X9>::ForwardType x9,
+      typename CallbackParamTraits<X10>::ForwardType x10) {
+    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,
+               typename CallbackParamTraits<X9>::ForwardType x9,
+               typename CallbackParamTraits<X10>::ForwardType x10)>
+               ::MakeItSo(storage->runnable_, x1, x2, x3, x4, x5, x6, x7, x8,
+                   x9, x10);
+  }
+};
+
+// Arity 10 -> 5.
+template <typename StorageType, typename R,typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6, typename X7,
+    typename X8, typename X9, typename X10>
+struct Invoker<5, StorageType, R(X1, X2, X3, X4, X5, X6, X7, X8, X9, X10)> {
+  typedef R(RunType)(BindStateBase*,
+      typename CallbackParamTraits<X6>::ForwardType,
+      typename CallbackParamTraits<X7>::ForwardType,
+      typename CallbackParamTraits<X8>::ForwardType,
+      typename CallbackParamTraits<X9>::ForwardType,
+      typename CallbackParamTraits<X10>::ForwardType);
+
+  typedef R(UnboundRunType)(X6, X7, X8, X9, X10);
+
+  static R Run(BindStateBase* base,
+      typename CallbackParamTraits<X6>::ForwardType x6,
+      typename CallbackParamTraits<X7>::ForwardType x7,
+      typename CallbackParamTraits<X8>::ForwardType x8,
+      typename CallbackParamTraits<X9>::ForwardType x9,
+      typename CallbackParamTraits<X10>::ForwardType x10) {
+    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,
+               typename CallbackParamTraits<X9>::ForwardType x9,
+               typename CallbackParamTraits<X10>::ForwardType x10)>
+               ::MakeItSo(storage->runnable_, x1, x2, x3, x4, x5, x6, x7, x8,
+                   x9, x10);
+  }
+};
+
+// Arity 10 -> 4.
+template <typename StorageType, typename R,typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6, typename X7,
+    typename X8, typename X9, typename X10>
+struct Invoker<6, StorageType, R(X1, X2, X3, X4, X5, X6, X7, X8, X9, X10)> {
+  typedef R(RunType)(BindStateBase*,
+      typename CallbackParamTraits<X7>::ForwardType,
+      typename CallbackParamTraits<X8>::ForwardType,
+      typename CallbackParamTraits<X9>::ForwardType,
+      typename CallbackParamTraits<X10>::ForwardType);
+
+  typedef R(UnboundRunType)(X7, X8, X9, X10);
+
+  static R Run(BindStateBase* base,
+      typename CallbackParamTraits<X7>::ForwardType x7,
+      typename CallbackParamTraits<X8>::ForwardType x8,
+      typename CallbackParamTraits<X9>::ForwardType x9,
+      typename CallbackParamTraits<X10>::ForwardType x10) {
+    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,
+               typename CallbackParamTraits<X9>::ForwardType x9,
+               typename CallbackParamTraits<X10>::ForwardType x10)>
+               ::MakeItSo(storage->runnable_, x1, x2, x3, x4, x5, x6, x7, x8,
+                   x9, x10);
+  }
+};
+
+// Arity 10 -> 3.
+template <typename StorageType, typename R,typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6, typename X7,
+    typename X8, typename X9, typename X10>
+struct Invoker<7, StorageType, R(X1, X2, X3, X4, X5, X6, X7, X8, X9, X10)> {
+  typedef R(RunType)(BindStateBase*,
+      typename CallbackParamTraits<X8>::ForwardType,
+      typename CallbackParamTraits<X9>::ForwardType,
+      typename CallbackParamTraits<X10>::ForwardType);
+
+  typedef R(UnboundRunType)(X8, X9, X10);
+
+  static R Run(BindStateBase* base,
+      typename CallbackParamTraits<X8>::ForwardType x8,
+      typename CallbackParamTraits<X9>::ForwardType x9,
+      typename CallbackParamTraits<X10>::ForwardType x10) {
+    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,
+               typename CallbackParamTraits<X9>::ForwardType x9,
+               typename CallbackParamTraits<X10>::ForwardType x10)>
+               ::MakeItSo(storage->runnable_, x1, x2, x3, x4, x5, x6, x7, x8,
+                   x9, x10);
+  }
+};
+
+// Arity 10 -> 2.
+template <typename StorageType, typename R,typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6, typename X7,
+    typename X8, typename X9, typename X10>
+struct Invoker<8, StorageType, R(X1, X2, X3, X4, X5, X6, X7, X8, X9, X10)> {
+  typedef R(RunType)(BindStateBase*,
+      typename CallbackParamTraits<X9>::ForwardType,
+      typename CallbackParamTraits<X10>::ForwardType);
+
+  typedef R(UnboundRunType)(X9, X10);
+
+  static R Run(BindStateBase* base,
+      typename CallbackParamTraits<X9>::ForwardType x9,
+      typename CallbackParamTraits<X10>::ForwardType x10) {
+    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,
+               typename CallbackParamTraits<X9>::ForwardType x9,
+               typename CallbackParamTraits<X10>::ForwardType x10)>
+               ::MakeItSo(storage->runnable_, x1, x2, x3, x4, x5, x6, x7, x8,
+                   x9, x10);
+  }
+};
+
+// Arity 10 -> 1.
+template <typename StorageType, typename R,typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6, typename X7,
+    typename X8, typename X9, typename X10>
+struct Invoker<9, StorageType, R(X1, X2, X3, X4, X5, X6, X7, X8, X9, X10)> {
+  typedef R(RunType)(BindStateBase*,
+      typename CallbackParamTraits<X10>::ForwardType);
+
+  typedef R(UnboundRunType)(X10);
+
+  static R Run(BindStateBase* base,
+      typename CallbackParamTraits<X10>::ForwardType x10) {
+    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;
+    typedef typename StorageType::Bound9UnwrapTraits Bound9UnwrapTraits;
+
+    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_);
+    typename Bound9UnwrapTraits::ForwardType x9 =
+        Bound9UnwrapTraits::Unwrap(storage->p9_);
+    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,
+               typename Bound9UnwrapTraits::ForwardType,
+               typename CallbackParamTraits<X10>::ForwardType x10)>
+               ::MakeItSo(storage->runnable_, x1, x2, x3, x4, x5, x6, x7, x8,
+                   x9, x10);
+  }
+};
+
+// Arity 10 -> 0.
+template <typename StorageType, typename R,typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6, typename X7,
+    typename X8, typename X9, typename X10>
+struct Invoker<10, StorageType, R(X1, X2, X3, X4, X5, X6, X7, X8, X9, X10)> {
+  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;
+    typedef typename StorageType::Bound9UnwrapTraits Bound9UnwrapTraits;
+    typedef typename StorageType::Bound10UnwrapTraits Bound10UnwrapTraits;
+
+    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_);
+    typename Bound9UnwrapTraits::ForwardType x9 =
+        Bound9UnwrapTraits::Unwrap(storage->p9_);
+    typename Bound10UnwrapTraits::ForwardType x10 =
+        Bound10UnwrapTraits::Unwrap(storage->p10_);
+    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,
+               typename Bound9UnwrapTraits::ForwardType,
+               typename Bound10UnwrapTraits::ForwardType)>
+               ::MakeItSo(storage->runnable_, x1, x2, x3, x4, x5, x6, x7, x8,
+                   x9, x10);
+  }
+};
+
+// Arity 11 -> 11.
+template <typename StorageType, typename R,typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6, typename X7,
+    typename X8, typename X9, typename X10, typename X11>
+struct Invoker<0, StorageType, R(X1, X2, X3, X4, X5, X6, X7, X8, X9, X10,
+    X11)> {
+  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,
+      typename CallbackParamTraits<X9>::ForwardType,
+      typename CallbackParamTraits<X10>::ForwardType,
+      typename CallbackParamTraits<X11>::ForwardType);
+
+  typedef R(UnboundRunType)(X1, X2, X3, X4, X5, X6, X7, X8, X9, X10, X11);
+
+  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,
+      typename CallbackParamTraits<X9>::ForwardType x9,
+      typename CallbackParamTraits<X10>::ForwardType x10,
+      typename CallbackParamTraits<X11>::ForwardType x11) {
+    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,
+               typename CallbackParamTraits<X9>::ForwardType x9,
+               typename CallbackParamTraits<X10>::ForwardType x10,
+               typename CallbackParamTraits<X11>::ForwardType x11)>
+               ::MakeItSo(storage->runnable_, x1, x2, x3, x4, x5, x6, x7, x8,
+                   x9, x10, x11);
+  }
+};
+
+// Arity 11 -> 10.
+template <typename StorageType, typename R,typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6, typename X7,
+    typename X8, typename X9, typename X10, typename X11>
+struct Invoker<1, StorageType, R(X1, X2, X3, X4, X5, X6, X7, X8, X9, X10,
+    X11)> {
+  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,
+      typename CallbackParamTraits<X9>::ForwardType,
+      typename CallbackParamTraits<X10>::ForwardType,
+      typename CallbackParamTraits<X11>::ForwardType);
+
+  typedef R(UnboundRunType)(X2, X3, X4, X5, X6, X7, X8, X9, X10, X11);
+
+  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,
+      typename CallbackParamTraits<X9>::ForwardType x9,
+      typename CallbackParamTraits<X10>::ForwardType x10,
+      typename CallbackParamTraits<X11>::ForwardType x11) {
+    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,
+               typename CallbackParamTraits<X9>::ForwardType x9,
+               typename CallbackParamTraits<X10>::ForwardType x10,
+               typename CallbackParamTraits<X11>::ForwardType x11)>
+               ::MakeItSo(storage->runnable_, x1, x2, x3, x4, x5, x6, x7, x8,
+                   x9, x10, x11);
+  }
+};
+
+// Arity 11 -> 9.
+template <typename StorageType, typename R,typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6, typename X7,
+    typename X8, typename X9, typename X10, typename X11>
+struct Invoker<2, StorageType, R(X1, X2, X3, X4, X5, X6, X7, X8, X9, X10,
+    X11)> {
+  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,
+      typename CallbackParamTraits<X9>::ForwardType,
+      typename CallbackParamTraits<X10>::ForwardType,
+      typename CallbackParamTraits<X11>::ForwardType);
+
+  typedef R(UnboundRunType)(X3, X4, X5, X6, X7, X8, X9, X10, X11);
+
+  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,
+      typename CallbackParamTraits<X9>::ForwardType x9,
+      typename CallbackParamTraits<X10>::ForwardType x10,
+      typename CallbackParamTraits<X11>::ForwardType x11) {
+    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,
+               typename CallbackParamTraits<X9>::ForwardType x9,
+               typename CallbackParamTraits<X10>::ForwardType x10,
+               typename CallbackParamTraits<X11>::ForwardType x11)>
+               ::MakeItSo(storage->runnable_, x1, x2, x3, x4, x5, x6, x7, x8,
+                   x9, x10, x11);
+  }
+};
+
+// Arity 11 -> 8.
+template <typename StorageType, typename R,typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6, typename X7,
+    typename X8, typename X9, typename X10, typename X11>
+struct Invoker<3, StorageType, R(X1, X2, X3, X4, X5, X6, X7, X8, X9, X10,
+    X11)> {
+  typedef R(RunType)(BindStateBase*,
+      typename CallbackParamTraits<X4>::ForwardType,
+      typename CallbackParamTraits<X5>::ForwardType,
+      typename CallbackParamTraits<X6>::ForwardType,
+      typename CallbackParamTraits<X7>::ForwardType,
+      typename CallbackParamTraits<X8>::ForwardType,
+      typename CallbackParamTraits<X9>::ForwardType,
+      typename CallbackParamTraits<X10>::ForwardType,
+      typename CallbackParamTraits<X11>::ForwardType);
+
+  typedef R(UnboundRunType)(X4, X5, X6, X7, X8, X9, X10, X11);
+
+  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,
+      typename CallbackParamTraits<X9>::ForwardType x9,
+      typename CallbackParamTraits<X10>::ForwardType x10,
+      typename CallbackParamTraits<X11>::ForwardType x11) {
+    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,
+               typename CallbackParamTraits<X9>::ForwardType x9,
+               typename CallbackParamTraits<X10>::ForwardType x10,
+               typename CallbackParamTraits<X11>::ForwardType x11)>
+               ::MakeItSo(storage->runnable_, x1, x2, x3, x4, x5, x6, x7, x8,
+                   x9, x10, x11);
+  }
+};
+
+// Arity 11 -> 7.
+template <typename StorageType, typename R,typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6, typename X7,
+    typename X8, typename X9, typename X10, typename X11>
+struct Invoker<4, StorageType, R(X1, X2, X3, X4, X5, X6, X7, X8, X9, X10,
+    X11)> {
+  typedef R(RunType)(BindStateBase*,
+      typename CallbackParamTraits<X5>::ForwardType,
+      typename CallbackParamTraits<X6>::ForwardType,
+      typename CallbackParamTraits<X7>::ForwardType,
+      typename CallbackParamTraits<X8>::ForwardType,
+      typename CallbackParamTraits<X9>::ForwardType,
+      typename CallbackParamTraits<X10>::ForwardType,
+      typename CallbackParamTraits<X11>::ForwardType);
+
+  typedef R(UnboundRunType)(X5, X6, X7, X8, X9, X10, X11);
+
+  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,
+      typename CallbackParamTraits<X9>::ForwardType x9,
+      typename CallbackParamTraits<X10>::ForwardType x10,
+      typename CallbackParamTraits<X11>::ForwardType x11) {
+    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,
+               typename CallbackParamTraits<X9>::ForwardType x9,
+               typename CallbackParamTraits<X10>::ForwardType x10,
+               typename CallbackParamTraits<X11>::ForwardType x11)>
+               ::MakeItSo(storage->runnable_, x1, x2, x3, x4, x5, x6, x7, x8,
+                   x9, x10, x11);
+  }
+};
+
+// Arity 11 -> 6.
+template <typename StorageType, typename R,typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6, typename X7,
+    typename X8, typename X9, typename X10, typename X11>
+struct Invoker<5, StorageType, R(X1, X2, X3, X4, X5, X6, X7, X8, X9, X10,
+    X11)> {
+  typedef R(RunType)(BindStateBase*,
+      typename CallbackParamTraits<X6>::ForwardType,
+      typename CallbackParamTraits<X7>::ForwardType,
+      typename CallbackParamTraits<X8>::ForwardType,
+      typename CallbackParamTraits<X9>::ForwardType,
+      typename CallbackParamTraits<X10>::ForwardType,
+      typename CallbackParamTraits<X11>::ForwardType);
+
+  typedef R(UnboundRunType)(X6, X7, X8, X9, X10, X11);
+
+  static R Run(BindStateBase* base,
+      typename CallbackParamTraits<X6>::ForwardType x6,
+      typename CallbackParamTraits<X7>::ForwardType x7,
+      typename CallbackParamTraits<X8>::ForwardType x8,
+      typename CallbackParamTraits<X9>::ForwardType x9,
+      typename CallbackParamTraits<X10>::ForwardType x10,
+      typename CallbackParamTraits<X11>::ForwardType x11) {
+    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,
+               typename CallbackParamTraits<X9>::ForwardType x9,
+               typename CallbackParamTraits<X10>::ForwardType x10,
+               typename CallbackParamTraits<X11>::ForwardType x11)>
+               ::MakeItSo(storage->runnable_, x1, x2, x3, x4, x5, x6, x7, x8,
+                   x9, x10, x11);
+  }
+};
+
+// Arity 11 -> 5.
+template <typename StorageType, typename R,typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6, typename X7,
+    typename X8, typename X9, typename X10, typename X11>
+struct Invoker<6, StorageType, R(X1, X2, X3, X4, X5, X6, X7, X8, X9, X10,
+    X11)> {
+  typedef R(RunType)(BindStateBase*,
+      typename CallbackParamTraits<X7>::ForwardType,
+      typename CallbackParamTraits<X8>::ForwardType,
+      typename CallbackParamTraits<X9>::ForwardType,
+      typename CallbackParamTraits<X10>::ForwardType,
+      typename CallbackParamTraits<X11>::ForwardType);
+
+  typedef R(UnboundRunType)(X7, X8, X9, X10, X11);
+
+  static R Run(BindStateBase* base,
+      typename CallbackParamTraits<X7>::ForwardType x7,
+      typename CallbackParamTraits<X8>::ForwardType x8,
+      typename CallbackParamTraits<X9>::ForwardType x9,
+      typename CallbackParamTraits<X10>::ForwardType x10,
+      typename CallbackParamTraits<X11>::ForwardType x11) {
+    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,
+               typename CallbackParamTraits<X9>::ForwardType x9,
+               typename CallbackParamTraits<X10>::ForwardType x10,
+               typename CallbackParamTraits<X11>::ForwardType x11)>
+               ::MakeItSo(storage->runnable_, x1, x2, x3, x4, x5, x6, x7, x8,
+                   x9, x10, x11);
+  }
+};
+
+// Arity 11 -> 4.
+template <typename StorageType, typename R,typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6, typename X7,
+    typename X8, typename X9, typename X10, typename X11>
+struct Invoker<7, StorageType, R(X1, X2, X3, X4, X5, X6, X7, X8, X9, X10,
+    X11)> {
+  typedef R(RunType)(BindStateBase*,
+      typename CallbackParamTraits<X8>::ForwardType,
+      typename CallbackParamTraits<X9>::ForwardType,
+      typename CallbackParamTraits<X10>::ForwardType,
+      typename CallbackParamTraits<X11>::ForwardType);
+
+  typedef R(UnboundRunType)(X8, X9, X10, X11);
+
+  static R Run(BindStateBase* base,
+      typename CallbackParamTraits<X8>::ForwardType x8,
+      typename CallbackParamTraits<X9>::ForwardType x9,
+      typename CallbackParamTraits<X10>::ForwardType x10,
+      typename CallbackParamTraits<X11>::ForwardType x11) {
+    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,
+               typename CallbackParamTraits<X9>::ForwardType x9,
+               typename CallbackParamTraits<X10>::ForwardType x10,
+               typename CallbackParamTraits<X11>::ForwardType x11)>
+               ::MakeItSo(storage->runnable_, x1, x2, x3, x4, x5, x6, x7, x8,
+                   x9, x10, x11);
+  }
+};
+
+// Arity 11 -> 3.
+template <typename StorageType, typename R,typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6, typename X7,
+    typename X8, typename X9, typename X10, typename X11>
+struct Invoker<8, StorageType, R(X1, X2, X3, X4, X5, X6, X7, X8, X9, X10,
+    X11)> {
+  typedef R(RunType)(BindStateBase*,
+      typename CallbackParamTraits<X9>::ForwardType,
+      typename CallbackParamTraits<X10>::ForwardType,
+      typename CallbackParamTraits<X11>::ForwardType);
+
+  typedef R(UnboundRunType)(X9, X10, X11);
+
+  static R Run(BindStateBase* base,
+      typename CallbackParamTraits<X9>::ForwardType x9,
+      typename CallbackParamTraits<X10>::ForwardType x10,
+      typename CallbackParamTraits<X11>::ForwardType x11) {
+    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,
+               typename CallbackParamTraits<X9>::ForwardType x9,
+               typename CallbackParamTraits<X10>::ForwardType x10,
+               typename CallbackParamTraits<X11>::ForwardType x11)>
+               ::MakeItSo(storage->runnable_, x1, x2, x3, x4, x5, x6, x7, x8,
+                   x9, x10, x11);
+  }
+};
+
+// Arity 11 -> 2.
+template <typename StorageType, typename R,typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6, typename X7,
+    typename X8, typename X9, typename X10, typename X11>
+struct Invoker<9, StorageType, R(X1, X2, X3, X4, X5, X6, X7, X8, X9, X10,
+    X11)> {
+  typedef R(RunType)(BindStateBase*,
+      typename CallbackParamTraits<X10>::ForwardType,
+      typename CallbackParamTraits<X11>::ForwardType);
+
+  typedef R(UnboundRunType)(X10, X11);
+
+  static R Run(BindStateBase* base,
+      typename CallbackParamTraits<X10>::ForwardType x10,
+      typename CallbackParamTraits<X11>::ForwardType x11) {
+    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;
+    typedef typename StorageType::Bound9UnwrapTraits Bound9UnwrapTraits;
+
+    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_);
+    typename Bound9UnwrapTraits::ForwardType x9 =
+        Bound9UnwrapTraits::Unwrap(storage->p9_);
+    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,
+               typename Bound9UnwrapTraits::ForwardType,
+               typename CallbackParamTraits<X10>::ForwardType x10,
+               typename CallbackParamTraits<X11>::ForwardType x11)>
+               ::MakeItSo(storage->runnable_, x1, x2, x3, x4, x5, x6, x7, x8,
+                   x9, x10, x11);
+  }
+};
+
+// Arity 11 -> 1.
+template <typename StorageType, typename R,typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6, typename X7,
+    typename X8, typename X9, typename X10, typename X11>
+struct Invoker<10, StorageType, R(X1, X2, X3, X4, X5, X6, X7, X8, X9, X10,
+    X11)> {
+  typedef R(RunType)(BindStateBase*,
+      typename CallbackParamTraits<X11>::ForwardType);
+
+  typedef R(UnboundRunType)(X11);
+
+  static R Run(BindStateBase* base,
+      typename CallbackParamTraits<X11>::ForwardType x11) {
+    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;
+    typedef typename StorageType::Bound9UnwrapTraits Bound9UnwrapTraits;
+    typedef typename StorageType::Bound10UnwrapTraits Bound10UnwrapTraits;
+
+    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_);
+    typename Bound9UnwrapTraits::ForwardType x9 =
+        Bound9UnwrapTraits::Unwrap(storage->p9_);
+    typename Bound10UnwrapTraits::ForwardType x10 =
+        Bound10UnwrapTraits::Unwrap(storage->p10_);
+    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,
+               typename Bound9UnwrapTraits::ForwardType,
+               typename Bound10UnwrapTraits::ForwardType,
+               typename CallbackParamTraits<X11>::ForwardType x11)>
+               ::MakeItSo(storage->runnable_, x1, x2, x3, x4, x5, x6, x7, x8,
+                   x9, x10, x11);
+  }
+};
+
+// Arity 11 -> 0.
+template <typename StorageType, typename R,typename X1, typename X2,
+    typename X3, typename X4, typename X5, typename X6, typename X7,
+    typename X8, typename X9, typename X10, typename X11>
+struct Invoker<11, StorageType, R(X1, X2, X3, X4, X5, X6, X7, X8, X9, X10,
+    X11)> {
+  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;
+    typedef typename StorageType::Bound9UnwrapTraits Bound9UnwrapTraits;
+    typedef typename StorageType::Bound10UnwrapTraits Bound10UnwrapTraits;
+    typedef typename StorageType::Bound11UnwrapTraits Bound11UnwrapTraits;
+
+    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_);
+    typename Bound9UnwrapTraits::ForwardType x9 =
+        Bound9UnwrapTraits::Unwrap(storage->p9_);
+    typename Bound10UnwrapTraits::ForwardType x10 =
+        Bound10UnwrapTraits::Unwrap(storage->p10_);
+    typename Bound11UnwrapTraits::ForwardType x11 =
+        Bound11UnwrapTraits::Unwrap(storage->p11_);
+    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,
+               typename Bound9UnwrapTraits::ForwardType,
+               typename Bound10UnwrapTraits::ForwardType,
+               typename Bound11UnwrapTraits::ForwardType)>
+               ::MakeItSo(storage->runnable_, x1, x2, x3, x4, x5, x6, x7, x8,
+                   x9, x10, x11);
+  }
+};
+
 
 // BindState<>
 //
@@ -2142,6 +5608,263 @@ struct BindState<Runnable, RunType, void(P1, P2, P3, P4, P5,
   P6 p6_;
 };
 
+template <typename Runnable, typename RunType, typename P1, typename P2,
+    typename P3, typename P4, typename P5, typename P6, typename P7>
+struct BindState<Runnable, RunType, void(P1, P2, P3, P4, P5, P6,
+    P7)> : public BindStateBase {
+  typedef Runnable RunnableType;
+  typedef IsWeakMethod<HasIsMethodTag<Runnable>::value, P1> IsWeakCall;
+  typedef Invoker<7, 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;
+
+  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)
+      : runnable_(runnable),
+        p1_(p1),
+        p2_(p2),
+        p3_(p3),
+        p4_(p4),
+        p5_(p5),
+        p6_(p6),
+        p7_(p7) {
+    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_;
+};
+
+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_;
+};
+
+template <typename Runnable, typename RunType, typename P1, typename P2,
+    typename P3, typename P4, typename P5, typename P6, typename P7,
+    typename P8, typename P9>
+struct BindState<Runnable, RunType, void(P1, P2, P3, P4, P5, P6, P7, P8,
+    P9)> : public BindStateBase {
+  typedef Runnable RunnableType;
+  typedef IsWeakMethod<HasIsMethodTag<Runnable>::value, P1> IsWeakCall;
+  typedef Invoker<9, 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;
+  typedef UnwrapTraits<P9> Bound9UnwrapTraits;
+
+  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,
+      const P9& p9)
+      : runnable_(runnable),
+        p1_(p1),
+        p2_(p2),
+        p3_(p3),
+        p4_(p4),
+        p5_(p5),
+        p6_(p6),
+        p7_(p7),
+        p8_(p8),
+        p9_(p9) {
+    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_;
+  P9 p9_;
+};
+
+template <typename Runnable, typename RunType, typename P1, typename P2,
+    typename P3, typename P4, typename P5, typename P6, typename P7,
+    typename P8, typename P9, typename P10>
+struct BindState<Runnable, RunType, void(P1, P2, P3, P4, P5, P6, P7, P8, P9,
+    P10)> : public BindStateBase {
+  typedef Runnable RunnableType;
+  typedef IsWeakMethod<HasIsMethodTag<Runnable>::value, P1> IsWeakCall;
+  typedef Invoker<10, 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;
+  typedef UnwrapTraits<P9> Bound9UnwrapTraits;
+  typedef UnwrapTraits<P10> Bound10UnwrapTraits;
+
+  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,
+      const P9& p9, const P10& p10)
+      : runnable_(runnable),
+        p1_(p1),
+        p2_(p2),
+        p3_(p3),
+        p4_(p4),
+        p5_(p5),
+        p6_(p6),
+        p7_(p7),
+        p8_(p8),
+        p9_(p9),
+        p10_(p10) {
+    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_;
+  P9 p9_;
+  P10 p10_;
+};
+
+template <typename Runnable, typename RunType, typename P1, typename P2,
+    typename P3, typename P4, typename P5, typename P6, typename P7,
+    typename P8, typename P9, typename P10, typename P11>
+struct BindState<Runnable, RunType, void(P1, P2, P3, P4, P5, P6, P7, P8, P9,
+    P10, P11)> : public BindStateBase {
+  typedef Runnable RunnableType;
+  typedef IsWeakMethod<HasIsMethodTag<Runnable>::value, P1> IsWeakCall;
+  typedef Invoker<11, 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;
+  typedef UnwrapTraits<P9> Bound9UnwrapTraits;
+  typedef UnwrapTraits<P10> Bound10UnwrapTraits;
+  typedef UnwrapTraits<P11> Bound11UnwrapTraits;
+
+  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,
+      const P9& p9, const P10& p10, const P11& p11)
+      : runnable_(runnable),
+        p1_(p1),
+        p2_(p2),
+        p3_(p3),
+        p4_(p4),
+        p5_(p5),
+        p6_(p6),
+        p7_(p7),
+        p8_(p8),
+        p9_(p9),
+        p10_(p10),
+        p11_(p11) {
+    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_;
+  P9 p9_;
+  P10 p10_;
+  P11 p11_;
+};
+
 }  // namespace internal
 }  // namespace base