[Base] Use variadic template in base/bind_internal_win.h (wave 1)

base/bind_internal_win.h.pump

-$$ This is a pump file for generating file templates.  Pump is a python
-$$ script that is part of the Google Test suite of utilities.  Description
-$$ can be found here:
-$$
-$$ http://code.google.com/p/googletest/wiki/PumpManual
-$$
-
-$$ See comment for MAX_ARITY in base/bind.h.pump.
-$var MAX_ARITY = 7
-
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Specializations of RunnableAdapter<> for Windows specific calling
-// conventions.  Please see base/bind_internal.h for more info.
-
-#ifndef BASE_BIND_INTERNAL_WIN_H_
-#define BASE_BIND_INTERNAL_WIN_H_
-
-// In the x64 architecture in Windows, __fastcall, __stdcall, etc, are all
-// the same as __cdecl which would turn the following specializations into
-// multiple definitions.
-#if !defined(ARCH_CPU_X86_64)
-
-namespace base {
-namespace internal {
-
-template <typename Functor>
-class RunnableAdapter;
-
-$range ARITY 0..MAX_ARITY
-$for ARITY [[
-$range ARG 1..ARITY
-
-// __stdcall Function: Arity $(ARITY).
-template <typename R[[]]
-$if ARITY > 0[[, ]] $for ARG , [[typename A$(ARG)]]>
-class RunnableAdapter<R(__stdcall *)($for ARG , [[A$(ARG)]])> {
- public:
-  typedef R (RunType)($for ARG , [[A$(ARG)]]);
-
-  explicit RunnableAdapter(R(__stdcall *function)($for ARG , [[A$(ARG)]]))
-      : function_(function) {
-  }
-
-  R Run($for ARG , [[typename CallbackParamTraits<A$(ARG)>::ForwardType a$(ARG)]]) {
-    return function_($for ARG , [[a$(ARG)]]);
-  }
-
- private:
-  R (__stdcall *function_)($for ARG , [[A$(ARG)]]);
-};
-
-// __fastcall Function: Arity $(ARITY).
-template <typename R[[]]
-$if ARITY > 0[[, ]] $for ARG , [[typename A$(ARG)]]>
-class RunnableAdapter<R(__fastcall *)($for ARG , [[A$(ARG)]])> {
- public:
-  typedef R (RunType)($for ARG , [[A$(ARG)]]);
-
-  explicit RunnableAdapter(R(__fastcall *function)($for ARG , [[A$(ARG)]]))
-      : function_(function) {
-  }
-
-  R Run($for ARG , [[typename CallbackParamTraits<A$(ARG)>::ForwardType a$(ARG)]]) {
-    return function_($for ARG , [[a$(ARG)]]);
-  }
-
- private:
-  R (__fastcall *function_)($for ARG , [[A$(ARG)]]);
-};
-
-]]  $$for ARITY
-
-}  // namespace internal
-}  // namespace base
-
-#endif  // !defined(ARCH_CPU_X86_64)
-
-#endif  // BASE_BIND_INTERNAL_WIN_H_