From 6bf0a5cb5034a7e684dcc3500e841785237ce2dd Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 7 Apr 2024 19:32:43 +0200
Subject: Adding upstream version 1:115.7.0.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 ipc/chromium/src/base/tuple.h | 838 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 838 insertions(+)
 create mode 100644 ipc/chromium/src/base/tuple.h

(limited to 'ipc/chromium/src/base/tuple.h')

diff --git a/ipc/chromium/src/base/tuple.h b/ipc/chromium/src/base/tuple.h
new file mode 100644
index 0000000000..62655784d4
--- /dev/null
+++ b/ipc/chromium/src/base/tuple.h
@@ -0,0 +1,838 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+// Copyright (c) 2006-2008 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.
+
+// A Tuple is a generic templatized container, similar in concept to std::pair.
+// There are classes Tuple0 to Tuple6, cooresponding to the number of elements
+// it contains.  The convenient MakeTuple() function takes 0 to 6 arguments,
+// and will construct and return the appropriate Tuple object.  The functions
+// DispatchToMethod and DispatchToFunction take a function pointer or instance
+// and method pointer, and unpack a tuple into arguments to the call.
+//
+// Tuple elements are copied by value, and stored in the tuple.  See the unit
+// tests for more details of how/when the values are copied.
+//
+// Example usage:
+//   // These two methods of creating a Tuple are identical.
+//   Tuple2<int, const char*> tuple_a(1, "wee");
+//   Tuple2<int, const char*> tuple_b = MakeTuple(1, "wee");
+//
+//   void SomeFunc(int a, const char* b) { }
+//   DispatchToFunction(&SomeFunc, tuple_a);  // SomeFunc(1, "wee")
+//   DispatchToFunction(
+//       &SomeFunc, MakeTuple(10, "foo"));    // SomeFunc(10, "foo")
+//
+//   struct { void SomeMeth(int a, int b, int c) { } } foo;
+//   DispatchToMethod(&foo, &Foo::SomeMeth, MakeTuple(1, 2, 3));
+//   // foo->SomeMeth(1, 2, 3);
+
+#ifndef BASE_TUPLE_H__
+#define BASE_TUPLE_H__
+
+// Traits ----------------------------------------------------------------------
+//
+// A simple traits class for tuple arguments.
+//
+// ValueType: the bare, nonref version of a type (same as the type for nonrefs).
+// RefType: the ref version of a type (same as the type for refs).
+// ParamType: what type to pass to functions (refs should not be constified).
+
+template <class P>
+struct TupleTraits {
+  typedef P ValueType;
+  typedef P& RefType;
+  typedef const P& ParamType;
+};
+
+template <class P>
+struct TupleTraits<P&> {
+  typedef P ValueType;
+  typedef P& RefType;
+  typedef P& ParamType;
+};
+
+// Tuple -----------------------------------------------------------------------
+//
+// This set of classes is useful for bundling 0 or more heterogeneous data types
+// into a single variable.  The advantage of this is that it greatly simplifies
+// function objects that need to take an arbitrary number of parameters; see
+// RunnableMethod and IPC::MessageWithTuple.
+//
+// Tuple0 is supplied to act as a 'void' type.  It can be used, for example,
+// when dispatching to a function that accepts no arguments (see the
+// Dispatchers below).
+// Tuple1<A> is rarely useful.  One such use is when A is non-const ref that you
+// want filled by the dispatchee, and the tuple is merely a container for that
+// output (a "tier").  See MakeRefTuple and its usages.
+
+struct Tuple0 {
+  typedef Tuple0 ValueTuple;
+  typedef Tuple0 RefTuple;
+};
+
+template <class A>
+struct Tuple1 {
+ public:
+  typedef A TypeA;
+  typedef Tuple1<typename TupleTraits<A>::ValueType> ValueTuple;
+  typedef Tuple1<typename TupleTraits<A>::RefType> RefTuple;
+
+  Tuple1() {}
+  explicit Tuple1(typename TupleTraits<A>::ParamType aA) : a(aA) {}
+
+  A a;
+};
+
+template <class A, class B>
+struct Tuple2 {
+ public:
+  typedef A TypeA;
+  typedef B TypeB;
+  typedef Tuple2<typename TupleTraits<A>::ValueType,
+                 typename TupleTraits<B>::ValueType>
+      ValueTuple;
+  typedef Tuple2<typename TupleTraits<A>::RefType,
+                 typename TupleTraits<B>::RefType>
+      RefTuple;
+
+  Tuple2() {}
+  Tuple2(typename TupleTraits<A>::ParamType aA,
+         typename TupleTraits<B>::ParamType aB)
+      : a(aA), b(aB) {}
+
+  A a;
+  B b;
+};
+
+template <class A, class B, class C>
+struct Tuple3 {
+ public:
+  typedef A TypeA;
+  typedef B TypeB;
+  typedef C TypeC;
+  typedef Tuple3<typename TupleTraits<A>::ValueType,
+                 typename TupleTraits<B>::ValueType,
+                 typename TupleTraits<C>::ValueType>
+      ValueTuple;
+  typedef Tuple3<typename TupleTraits<A>::RefType,
+                 typename TupleTraits<B>::RefType,
+                 typename TupleTraits<C>::RefType>
+      RefTuple;
+
+  Tuple3() {}
+  Tuple3(typename TupleTraits<A>::ParamType aA,
+         typename TupleTraits<B>::ParamType aB,
+         typename TupleTraits<C>::ParamType aC)
+      : a(aA), b(aB), c(aC) {}
+
+  A a;
+  B b;
+  C c;
+};
+
+template <class A, class B, class C, class D>
+struct Tuple4 {
+ public:
+  typedef A TypeA;
+  typedef B TypeB;
+  typedef C TypeC;
+  typedef D TypeD;
+  typedef Tuple4<
+      typename TupleTraits<A>::ValueType, typename TupleTraits<B>::ValueType,
+      typename TupleTraits<C>::ValueType, typename TupleTraits<D>::ValueType>
+      ValueTuple;
+  typedef Tuple4<
+      typename TupleTraits<A>::RefType, typename TupleTraits<B>::RefType,
+      typename TupleTraits<C>::RefType, typename TupleTraits<D>::RefType>
+      RefTuple;
+
+  Tuple4() {}
+  Tuple4(typename TupleTraits<A>::ParamType aA,
+         typename TupleTraits<B>::ParamType aB,
+         typename TupleTraits<C>::ParamType aC,
+         typename TupleTraits<D>::ParamType aD)
+      : a(aA), b(aB), c(aC), d(aD) {}
+
+  A a;
+  B b;
+  C c;
+  D d;
+};
+
+template <class A, class B, class C, class D, class E>
+struct Tuple5 {
+ public:
+  typedef A TypeA;
+  typedef B TypeB;
+  typedef C TypeC;
+  typedef D TypeD;
+  typedef E TypeE;
+  typedef Tuple5<
+      typename TupleTraits<A>::ValueType, typename TupleTraits<B>::ValueType,
+      typename TupleTraits<C>::ValueType, typename TupleTraits<D>::ValueType,
+      typename TupleTraits<E>::ValueType>
+      ValueTuple;
+  typedef Tuple5<
+      typename TupleTraits<A>::RefType, typename TupleTraits<B>::RefType,
+      typename TupleTraits<C>::RefType, typename TupleTraits<D>::RefType,
+      typename TupleTraits<E>::RefType>
+      RefTuple;
+
+  Tuple5() {}
+  Tuple5(typename TupleTraits<A>::ParamType aA,
+         typename TupleTraits<B>::ParamType aB,
+         typename TupleTraits<C>::ParamType aC,
+         typename TupleTraits<D>::ParamType aD,
+         typename TupleTraits<E>::ParamType aE)
+      : a(aA), b(aB), c(aC), d(aD), e(aE) {}
+
+  A a;
+  B b;
+  C c;
+  D d;
+  E e;
+};
+
+template <class A, class B, class C, class D, class E, class F>
+struct Tuple6 {
+ public:
+  typedef A TypeA;
+  typedef B TypeB;
+  typedef C TypeC;
+  typedef D TypeD;
+  typedef E TypeE;
+  typedef F TypeF;
+  typedef Tuple6<
+      typename TupleTraits<A>::ValueType, typename TupleTraits<B>::ValueType,
+      typename TupleTraits<C>::ValueType, typename TupleTraits<D>::ValueType,
+      typename TupleTraits<E>::ValueType, typename TupleTraits<F>::ValueType>
+      ValueTuple;
+  typedef Tuple6<
+      typename TupleTraits<A>::RefType, typename TupleTraits<B>::RefType,
+      typename TupleTraits<C>::RefType, typename TupleTraits<D>::RefType,
+      typename TupleTraits<E>::RefType, typename TupleTraits<F>::RefType>
+      RefTuple;
+
+  Tuple6() {}
+  Tuple6(typename TupleTraits<A>::ParamType aA,
+         typename TupleTraits<B>::ParamType aB,
+         typename TupleTraits<C>::ParamType aC,
+         typename TupleTraits<D>::ParamType aD,
+         typename TupleTraits<E>::ParamType aE,
+         typename TupleTraits<F>::ParamType aF)
+      : a(aA), b(aB), c(aC), d(aD), e(aE), f(aF) {}
+
+  A a;
+  B b;
+  C c;
+  D d;
+  E e;
+  F f;
+};
+
+template <class A, class B, class C, class D, class E, class F, class G>
+struct Tuple7 {
+ public:
+  typedef A TypeA;
+  typedef B TypeB;
+  typedef C TypeC;
+  typedef D TypeD;
+  typedef E TypeE;
+  typedef F TypeF;
+  typedef G TypeG;
+  typedef Tuple7<
+      typename TupleTraits<A>::ValueType, typename TupleTraits<B>::ValueType,
+      typename TupleTraits<C>::ValueType, typename TupleTraits<D>::ValueType,
+      typename TupleTraits<E>::ValueType, typename TupleTraits<F>::ValueType,
+      typename TupleTraits<G>::ValueType>
+      ValueTuple;
+  typedef Tuple7<
+      typename TupleTraits<A>::RefType, typename TupleTraits<B>::RefType,
+      typename TupleTraits<C>::RefType, typename TupleTraits<D>::RefType,
+      typename TupleTraits<E>::RefType, typename TupleTraits<F>::RefType,
+      typename TupleTraits<G>::RefType>
+      RefTuple;
+
+  Tuple7() {}
+  Tuple7(typename TupleTraits<A>::ParamType aA,
+         typename TupleTraits<B>::ParamType aB,
+         typename TupleTraits<C>::ParamType aC,
+         typename TupleTraits<D>::ParamType aD,
+         typename TupleTraits<E>::ParamType aE,
+         typename TupleTraits<F>::ParamType aF,
+         typename TupleTraits<G>::ParamType aG)
+      : a(aA), b(aB), c(aC), d(aD), e(aE), f(aF), g(aG) {}
+
+  A a;
+  B b;
+  C c;
+  D d;
+  E e;
+  F f;
+  G g;
+};
+
+// Tuple creators -------------------------------------------------------------
+//
+// Helper functions for constructing tuples while inferring the template
+// argument types.
+
+namespace base {
+
+inline Tuple0 MakeTuple() { return Tuple0(); }
+
+template <class A>
+inline Tuple1<A> MakeTuple(const A& a) {
+  return Tuple1<A>(a);
+}
+
+template <class A, class B>
+inline Tuple2<A, B> MakeTuple(const A& a, const B& b) {
+  return Tuple2<A, B>(a, b);
+}
+
+template <class A, class B, class C>
+inline Tuple3<A, B, C> MakeTuple(const A& a, const B& b, const C& c) {
+  return Tuple3<A, B, C>(a, b, c);
+}
+
+template <class A, class B, class C, class D>
+inline Tuple4<A, B, C, D> MakeTuple(const A& a, const B& b, const C& c,
+                                    const D& d) {
+  return Tuple4<A, B, C, D>(a, b, c, d);
+}
+
+template <class A, class B, class C, class D, class E>
+inline Tuple5<A, B, C, D, E> MakeTuple(const A& a, const B& b, const C& c,
+                                       const D& d, const E& e) {
+  return Tuple5<A, B, C, D, E>(a, b, c, d, e);
+}
+
+template <class A, class B, class C, class D, class E, class F>
+inline Tuple6<A, B, C, D, E, F> MakeTuple(const A& a, const B& b, const C& c,
+                                          const D& d, const E& e, const F& f) {
+  return Tuple6<A, B, C, D, E, F>(a, b, c, d, e, f);
+}
+
+template <class A, class B, class C, class D, class E, class F, class G>
+inline Tuple7<A, B, C, D, E, F, G> MakeTuple(const A& a, const B& b, const C& c,
+                                             const D& d, const E& e, const F& f,
+                                             const G& g) {
+  return Tuple7<A, B, C, D, E, F, G>(a, b, c, d, e, f, g);
+}
+
+}  // end namespace base
+
+// The following set of helpers make what Boost refers to as "Tiers" - a tuple
+// of references.
+
+template <class A>
+inline Tuple1<A&> MakeRefTuple(A& a) {
+  return Tuple1<A&>(a);
+}
+
+template <class A, class B>
+inline Tuple2<A&, B&> MakeRefTuple(A& a, B& b) {
+  return Tuple2<A&, B&>(a, b);
+}
+
+template <class A, class B, class C>
+inline Tuple3<A&, B&, C&> MakeRefTuple(A& a, B& b, C& c) {
+  return Tuple3<A&, B&, C&>(a, b, c);
+}
+
+template <class A, class B, class C, class D>
+inline Tuple4<A&, B&, C&, D&> MakeRefTuple(A& a, B& b, C& c, D& d) {
+  return Tuple4<A&, B&, C&, D&>(a, b, c, d);
+}
+
+template <class A, class B, class C, class D, class E>
+inline Tuple5<A&, B&, C&, D&, E&> MakeRefTuple(A& a, B& b, C& c, D& d, E& e) {
+  return Tuple5<A&, B&, C&, D&, E&>(a, b, c, d, e);
+}
+
+template <class A, class B, class C, class D, class E, class F>
+inline Tuple6<A&, B&, C&, D&, E&, F&> MakeRefTuple(A& a, B& b, C& c, D& d, E& e,
+                                                   F& f) {
+  return Tuple6<A&, B&, C&, D&, E&, F&>(a, b, c, d, e, f);
+}
+
+template <class A, class B, class C, class D, class E, class F, class G>
+inline Tuple7<A&, B&, C&, D&, E&, F&, G&> MakeRefTuple(A& a, B& b, C& c, D& d,
+                                                       E& e, F& f, G& g) {
+  return Tuple7<A&, B&, C&, D&, E&, F&, G&>(a, b, c, d, e, f, g);
+}
+
+// Dispatchers ----------------------------------------------------------------
+//
+// Helper functions that call the given method on an object, with the unpacked
+// tuple arguments.  Notice that they all have the same number of arguments,
+// so you need only write:
+//   DispatchToMethod(object, &Object::method, args);
+// This is very useful for templated dispatchers, since they don't need to know
+// what type |args| is.
+
+// Non-Static Dispatchers with no out params.
+
+template <class ObjT, class Method>
+inline void DispatchToMethod(ObjT* obj, Method method, const Tuple0& arg) {
+  (obj->*method)();
+}
+
+template <class ObjT, class Method, class A>
+inline void DispatchToMethod(ObjT* obj, Method method, const A& arg) {
+  (obj->*method)(arg);
+}
+
+template <class ObjT, class Method, class A>
+inline void DispatchToMethod(ObjT* obj, Method method, const Tuple1<A>& arg) {
+  (obj->*method)(arg.a);
+}
+
+template <class ObjT, class Method, class A, class B>
+inline void DispatchToMethod(ObjT* obj, Method method,
+                             const Tuple2<A, B>& arg) {
+  (obj->*method)(arg.a, arg.b);
+}
+
+template <class ObjT, class Method, class A, class B, class C>
+inline void DispatchToMethod(ObjT* obj, Method method,
+                             const Tuple3<A, B, C>& arg) {
+  (obj->*method)(arg.a, arg.b, arg.c);
+}
+
+template <class ObjT, class Method, class A, class B, class C, class D>
+inline void DispatchToMethod(ObjT* obj, Method method,
+                             const Tuple4<A, B, C, D>& arg) {
+  (obj->*method)(arg.a, arg.b, arg.c, arg.d);
+}
+
+template <class ObjT, class Method, class A, class B, class C, class D, class E>
+inline void DispatchToMethod(ObjT* obj, Method method,
+                             const Tuple5<A, B, C, D, E>& arg) {
+  (obj->*method)(arg.a, arg.b, arg.c, arg.d, arg.e);
+}
+
+template <class ObjT, class Method, class A, class B, class C, class D, class E,
+          class F>
+inline void DispatchToMethod(ObjT* obj, Method method,
+                             const Tuple6<A, B, C, D, E, F>& arg) {
+  (obj->*method)(arg.a, arg.b, arg.c, arg.d, arg.e, arg.f);
+}
+
+template <class ObjT, class Method, class A, class B, class C, class D, class E,
+          class F, class G>
+inline void DispatchToMethod(ObjT* obj, Method method,
+                             const Tuple7<A, B, C, D, E, F, G>& arg) {
+  (obj->*method)(arg.a, arg.b, arg.c, arg.d, arg.e, arg.f, arg.g);
+}
+
+// Static Dispatchers with no out params.
+
+template <class Function>
+inline void DispatchToFunction(Function function, const Tuple0& arg) {
+  (*function)();
+}
+
+template <class Function, class A>
+inline void DispatchToFunction(Function function, const A& arg) {
+  (*function)(arg);
+}
+
+template <class Function, class A>
+inline void DispatchToFunction(Function function, const Tuple1<A>& arg) {
+  (*function)(arg.a);
+}
+
+template <class Function, class A, class B>
+inline void DispatchToFunction(Function function, const Tuple2<A, B>& arg) {
+  (*function)(arg.a, arg.b);
+}
+
+template <class Function, class A, class B, class C>
+inline void DispatchToFunction(Function function, const Tuple3<A, B, C>& arg) {
+  (*function)(arg.a, arg.b, arg.c);
+}
+
+template <class Function, class A, class B, class C, class D>
+inline void DispatchToFunction(Function function,
+                               const Tuple4<A, B, C, D>& arg) {
+  (*function)(arg.a, arg.b, arg.c, arg.d);
+}
+
+template <class Function, class A, class B, class C, class D, class E>
+inline void DispatchToFunction(Function function,
+                               const Tuple5<A, B, C, D, E>& arg) {
+  (*function)(arg.a, arg.b, arg.c, arg.d, arg.e);
+}
+
+template <class Function, class A, class B, class C, class D, class E, class F>
+inline void DispatchToFunction(Function function,
+                               const Tuple6<A, B, C, D, E, F>& arg) {
+  (*function)(arg.a, arg.b, arg.c, arg.d, arg.e, arg.f);
+}
+
+// Dispatchers with 0 out param (as a Tuple0).
+
+template <class ObjT, class Method>
+inline void DispatchToMethod(ObjT* obj, Method method, const Tuple0& arg,
+                             Tuple0*) {
+  (obj->*method)();
+}
+
+template <class ObjT, class Method, class A>
+inline void DispatchToMethod(ObjT* obj, Method method, const A& arg, Tuple0*) {
+  (obj->*method)(arg);
+}
+
+template <class ObjT, class Method, class A>
+inline void DispatchToMethod(ObjT* obj, Method method, const Tuple1<A>& arg,
+                             Tuple0*) {
+  (obj->*method)(arg.a);
+}
+
+template <class ObjT, class Method, class A, class B>
+inline void DispatchToMethod(ObjT* obj, Method method, const Tuple2<A, B>& arg,
+                             Tuple0*) {
+  (obj->*method)(arg.a, arg.b);
+}
+
+template <class ObjT, class Method, class A, class B, class C>
+inline void DispatchToMethod(ObjT* obj, Method method,
+                             const Tuple3<A, B, C>& arg, Tuple0*) {
+  (obj->*method)(arg.a, arg.b, arg.c);
+}
+
+template <class ObjT, class Method, class A, class B, class C, class D>
+inline void DispatchToMethod(ObjT* obj, Method method,
+                             const Tuple4<A, B, C, D>& arg, Tuple0*) {
+  (obj->*method)(arg.a, arg.b, arg.c, arg.d);
+}
+
+template <class ObjT, class Method, class A, class B, class C, class D, class E>
+inline void DispatchToMethod(ObjT* obj, Method method,
+                             const Tuple5<A, B, C, D, E>& arg, Tuple0*) {
+  (obj->*method)(arg.a, arg.b, arg.c, arg.d, arg.e);
+}
+
+template <class ObjT, class Method, class A, class B, class C, class D, class E,
+          class F>
+inline void DispatchToMethod(ObjT* obj, Method method,
+                             const Tuple6<A, B, C, D, E, F>& arg, Tuple0*) {
+  (obj->*method)(arg.a, arg.b, arg.c, arg.d, arg.e, arg.f);
+}
+
+// Dispatchers with 1 out param.
+
+template <class ObjT, class Method, class OutA>
+inline void DispatchToMethod(ObjT* obj, Method method, const Tuple0& in,
+                             Tuple1<OutA>* out) {
+  (obj->*method)(&out->a);
+}
+
+template <class ObjT, class Method, class InA, class OutA>
+inline void DispatchToMethod(ObjT* obj, Method method, const InA& in,
+                             Tuple1<OutA>* out) {
+  (obj->*method)(in, &out->a);
+}
+
+template <class ObjT, class Method, class InA, class OutA>
+inline void DispatchToMethod(ObjT* obj, Method method, const Tuple1<InA>& in,
+                             Tuple1<OutA>* out) {
+  (obj->*method)(in.a, &out->a);
+}
+
+template <class ObjT, class Method, class InA, class InB, class OutA>
+inline void DispatchToMethod(ObjT* obj, Method method,
+                             const Tuple2<InA, InB>& in, Tuple1<OutA>* out) {
+  (obj->*method)(in.a, in.b, &out->a);
+}
+
+template <class ObjT, class Method, class InA, class InB, class InC, class OutA>
+inline void DispatchToMethod(ObjT* obj, Method method,
+                             const Tuple3<InA, InB, InC>& in,
+                             Tuple1<OutA>* out) {
+  (obj->*method)(in.a, in.b, in.c, &out->a);
+}
+
+template <class ObjT, class Method, class InA, class InB, class InC, class InD,
+          class OutA>
+inline void DispatchToMethod(ObjT* obj, Method method,
+                             const Tuple4<InA, InB, InC, InD>& in,
+                             Tuple1<OutA>* out) {
+  (obj->*method)(in.a, in.b, in.c, in.d, &out->a);
+}
+
+template <class ObjT, class Method, class InA, class InB, class InC, class InD,
+          class InE, class OutA>
+inline void DispatchToMethod(ObjT* obj, Method method,
+                             const Tuple5<InA, InB, InC, InD, InE>& in,
+                             Tuple1<OutA>* out) {
+  (obj->*method)(in.a, in.b, in.c, in.d, in.e, &out->a);
+}
+
+template <class ObjT, class Method, class InA, class InB, class InC, class InD,
+          class InE, class InF, class OutA>
+inline void DispatchToMethod(ObjT* obj, Method method,
+                             const Tuple6<InA, InB, InC, InD, InE, InF>& in,
+                             Tuple1<OutA>* out) {
+  (obj->*method)(in.a, in.b, in.c, in.d, in.e, in.f, &out->a);
+}
+
+// Dispatchers with 2 out params.
+
+template <class ObjT, class Method, class OutA, class OutB>
+inline void DispatchToMethod(ObjT* obj, Method method, const Tuple0& in,
+                             Tuple2<OutA, OutB>* out) {
+  (obj->*method)(&out->a, &out->b);
+}
+
+template <class ObjT, class Method, class InA, class OutA, class OutB>
+inline void DispatchToMethod(ObjT* obj, Method method, const InA& in,
+                             Tuple2<OutA, OutB>* out) {
+  (obj->*method)(in, &out->a, &out->b);
+}
+
+template <class ObjT, class Method, class InA, class OutA, class OutB>
+inline void DispatchToMethod(ObjT* obj, Method method, const Tuple1<InA>& in,
+                             Tuple2<OutA, OutB>* out) {
+  (obj->*method)(in.a, &out->a, &out->b);
+}
+
+template <class ObjT, class Method, class InA, class InB, class OutA,
+          class OutB>
+inline void DispatchToMethod(ObjT* obj, Method method,
+                             const Tuple2<InA, InB>& in,
+                             Tuple2<OutA, OutB>* out) {
+  (obj->*method)(in.a, in.b, &out->a, &out->b);
+}
+
+template <class ObjT, class Method, class InA, class InB, class InC, class OutA,
+          class OutB>
+inline void DispatchToMethod(ObjT* obj, Method method,
+                             const Tuple3<InA, InB, InC>& in,
+                             Tuple2<OutA, OutB>* out) {
+  (obj->*method)(in.a, in.b, in.c, &out->a, &out->b);
+}
+
+template <class ObjT, class Method, class InA, class InB, class InC, class InD,
+          class OutA, class OutB>
+inline void DispatchToMethod(ObjT* obj, Method method,
+                             const Tuple4<InA, InB, InC, InD>& in,
+                             Tuple2<OutA, OutB>* out) {
+  (obj->*method)(in.a, in.b, in.c, in.d, &out->a, &out->b);
+}
+
+template <class ObjT, class Method, class InA, class InB, class InC, class InD,
+          class InE, class OutA, class OutB>
+inline void DispatchToMethod(ObjT* obj, Method method,
+                             const Tuple5<InA, InB, InC, InD, InE>& in,
+                             Tuple2<OutA, OutB>* out) {
+  (obj->*method)(in.a, in.b, in.c, in.d, in.e, &out->a, &out->b);
+}
+
+template <class ObjT, class Method, class InA, class InB, class InC, class InD,
+          class InE, class InF, class OutA, class OutB>
+inline void DispatchToMethod(ObjT* obj, Method method,
+                             const Tuple6<InA, InB, InC, InD, InE, InF>& in,
+                             Tuple2<OutA, OutB>* out) {
+  (obj->*method)(in.a, in.b, in.c, in.d, in.e, in.f, &out->a, &out->b);
+}
+
+// Dispatchers with 3 out params.
+
+template <class ObjT, class Method, class OutA, class OutB, class OutC>
+inline void DispatchToMethod(ObjT* obj, Method method, const Tuple0& in,
+                             Tuple3<OutA, OutB, OutC>* out) {
+  (obj->*method)(&out->a, &out->b, &out->c);
+}
+
+template <class ObjT, class Method, class InA, class OutA, class OutB,
+          class OutC>
+inline void DispatchToMethod(ObjT* obj, Method method, const InA& in,
+                             Tuple3<OutA, OutB, OutC>* out) {
+  (obj->*method)(in, &out->a, &out->b, &out->c);
+}
+
+template <class ObjT, class Method, class InA, class OutA, class OutB,
+          class OutC>
+inline void DispatchToMethod(ObjT* obj, Method method, const Tuple1<InA>& in,
+                             Tuple3<OutA, OutB, OutC>* out) {
+  (obj->*method)(in.a, &out->a, &out->b, &out->c);
+}
+
+template <class ObjT, class Method, class InA, class InB, class OutA,
+          class OutB, class OutC>
+inline void DispatchToMethod(ObjT* obj, Method method,
+                             const Tuple2<InA, InB>& in,
+                             Tuple3<OutA, OutB, OutC>* out) {
+  (obj->*method)(in.a, in.b, &out->a, &out->b, &out->c);
+}
+
+template <class ObjT, class Method, class InA, class InB, class InC, class OutA,
+          class OutB, class OutC>
+inline void DispatchToMethod(ObjT* obj, Method method,
+                             const Tuple3<InA, InB, InC>& in,
+                             Tuple3<OutA, OutB, OutC>* out) {
+  (obj->*method)(in.a, in.b, in.c, &out->a, &out->b, &out->c);
+}
+
+template <class ObjT, class Method, class InA, class InB, class InC, class InD,
+          class OutA, class OutB, class OutC>
+inline void DispatchToMethod(ObjT* obj, Method method,
+                             const Tuple4<InA, InB, InC, InD>& in,
+                             Tuple3<OutA, OutB, OutC>* out) {
+  (obj->*method)(in.a, in.b, in.c, in.d, &out->a, &out->b, &out->c);
+}
+
+template <class ObjT, class Method, class InA, class InB, class InC, class InD,
+          class InE, class OutA, class OutB, class OutC>
+inline void DispatchToMethod(ObjT* obj, Method method,
+                             const Tuple5<InA, InB, InC, InD, InE>& in,
+                             Tuple3<OutA, OutB, OutC>* out) {
+  (obj->*method)(in.a, in.b, in.c, in.d, in.e, &out->a, &out->b, &out->c);
+}
+
+template <class ObjT, class Method, class InA, class InB, class InC, class InD,
+          class InE, class InF, class OutA, class OutB, class OutC>
+inline void DispatchToMethod(ObjT* obj, Method method,
+                             const Tuple6<InA, InB, InC, InD, InE, InF>& in,
+                             Tuple3<OutA, OutB, OutC>* out) {
+  (obj->*method)(in.a, in.b, in.c, in.d, in.e, in.f, &out->a, &out->b, &out->c);
+}
+
+// Dispatchers with 4 out params.
+
+template <class ObjT, class Method, class OutA, class OutB, class OutC,
+          class OutD>
+inline void DispatchToMethod(ObjT* obj, Method method, const Tuple0& in,
+                             Tuple4<OutA, OutB, OutC, OutD>* out) {
+  (obj->*method)(&out->a, &out->b, &out->c, &out->d);
+}
+
+template <class ObjT, class Method, class InA, class OutA, class OutB,
+          class OutC, class OutD>
+inline void DispatchToMethod(ObjT* obj, Method method, const InA& in,
+                             Tuple4<OutA, OutB, OutC, OutD>* out) {
+  (obj->*method)(in, &out->a, &out->b, &out->c, &out->d);
+}
+
+template <class ObjT, class Method, class InA, class OutA, class OutB,
+          class OutC, class OutD>
+inline void DispatchToMethod(ObjT* obj, Method method, const Tuple1<InA>& in,
+                             Tuple4<OutA, OutB, OutC, OutD>* out) {
+  (obj->*method)(in.a, &out->a, &out->b, &out->c, &out->d);
+}
+
+template <class ObjT, class Method, class InA, class InB, class OutA,
+          class OutB, class OutC, class OutD>
+inline void DispatchToMethod(ObjT* obj, Method method,
+                             const Tuple2<InA, InB>& in,
+                             Tuple4<OutA, OutB, OutC, OutD>* out) {
+  (obj->*method)(in.a, in.b, &out->a, &out->b, &out->c, &out->d);
+}
+
+template <class ObjT, class Method, class InA, class InB, class InC, class OutA,
+          class OutB, class OutC, class OutD>
+inline void DispatchToMethod(ObjT* obj, Method method,
+                             const Tuple3<InA, InB, InC>& in,
+                             Tuple4<OutA, OutB, OutC, OutD>* out) {
+  (obj->*method)(in.a, in.b, in.c, &out->a, &out->b, &out->c, &out->d);
+}
+
+template <class ObjT, class Method, class InA, class InB, class InC, class InD,
+          class OutA, class OutB, class OutC, class OutD>
+inline void DispatchToMethod(ObjT* obj, Method method,
+                             const Tuple4<InA, InB, InC, InD>& in,
+                             Tuple4<OutA, OutB, OutC, OutD>* out) {
+  (obj->*method)(in.a, in.b, in.c, in.d, &out->a, &out->b, &out->c, &out->d);
+}
+
+template <class ObjT, class Method, class InA, class InB, class InC, class InD,
+          class InE, class OutA, class OutB, class OutC, class OutD>
+inline void DispatchToMethod(ObjT* obj, Method method,
+                             const Tuple5<InA, InB, InC, InD, InE>& in,
+                             Tuple4<OutA, OutB, OutC, OutD>* out) {
+  (obj->*method)(in.a, in.b, in.c, in.d, in.e, &out->a, &out->b, &out->c,
+                 &out->d);
+}
+
+template <class ObjT, class Method, class InA, class InB, class InC, class InD,
+          class InE, class InF, class OutA, class OutB, class OutC, class OutD>
+inline void DispatchToMethod(ObjT* obj, Method method,
+                             const Tuple6<InA, InB, InC, InD, InE, InF>& in,
+                             Tuple4<OutA, OutB, OutC, OutD>* out) {
+  (obj->*method)(in.a, in.b, in.c, in.d, in.e, in.f, &out->a, &out->b, &out->c,
+                 &out->d);
+}
+
+// Dispatchers with 5 out params.
+
+template <class ObjT, class Method, class OutA, class OutB, class OutC,
+          class OutD, class OutE>
+inline void DispatchToMethod(ObjT* obj, Method method, const Tuple0& in,
+                             Tuple5<OutA, OutB, OutC, OutD, OutE>* out) {
+  (obj->*method)(&out->a, &out->b, &out->c, &out->d, &out->e);
+}
+
+template <class ObjT, class Method, class InA, class OutA, class OutB,
+          class OutC, class OutD, class OutE>
+inline void DispatchToMethod(ObjT* obj, Method method, const InA& in,
+                             Tuple5<OutA, OutB, OutC, OutD, OutE>* out) {
+  (obj->*method)(in, &out->a, &out->b, &out->c, &out->d, &out->e);
+}
+
+template <class ObjT, class Method, class InA, class OutA, class OutB,
+          class OutC, class OutD, class OutE>
+inline void DispatchToMethod(ObjT* obj, Method method, const Tuple1<InA>& in,
+                             Tuple5<OutA, OutB, OutC, OutD, OutE>* out) {
+  (obj->*method)(in.a, &out->a, &out->b, &out->c, &out->d, &out->e);
+}
+
+template <class ObjT, class Method, class InA, class InB, class OutA,
+          class OutB, class OutC, class OutD, class OutE>
+inline void DispatchToMethod(ObjT* obj, Method method,
+                             const Tuple2<InA, InB>& in,
+                             Tuple5<OutA, OutB, OutC, OutD, OutE>* out) {
+  (obj->*method)(in.a, in.b, &out->a, &out->b, &out->c, &out->d, &out->e);
+}
+
+template <class ObjT, class Method, class InA, class InB, class InC, class OutA,
+          class OutB, class OutC, class OutD, class OutE>
+inline void DispatchToMethod(ObjT* obj, Method method,
+                             const Tuple3<InA, InB, InC>& in,
+                             Tuple5<OutA, OutB, OutC, OutD, OutE>* out) {
+  (obj->*method)(in.a, in.b, in.c, &out->a, &out->b, &out->c, &out->d, &out->e);
+}
+
+template <class ObjT, class Method, class InA, class InB, class InC, class InD,
+          class OutA, class OutB, class OutC, class OutD, class OutE>
+inline void DispatchToMethod(ObjT* obj, Method method,
+                             const Tuple4<InA, InB, InC, InD>& in,
+                             Tuple5<OutA, OutB, OutC, OutD, OutE>* out) {
+  (obj->*method)(in.a, in.b, in.c, in.d, &out->a, &out->b, &out->c, &out->d,
+                 &out->e);
+}
+
+template <class ObjT, class Method, class InA, class InB, class InC, class InD,
+          class InE, class OutA, class OutB, class OutC, class OutD, class OutE>
+inline void DispatchToMethod(ObjT* obj, Method method,
+                             const Tuple5<InA, InB, InC, InD, InE>& in,
+                             Tuple5<OutA, OutB, OutC, OutD, OutE>* out) {
+  (obj->*method)(in.a, in.b, in.c, in.d, in.e, &out->a, &out->b, &out->c,
+                 &out->d, &out->e);
+}
+
+template <class ObjT, class Method, class InA, class InB, class InC, class InD,
+          class InE, class InF, class OutA, class OutB, class OutC, class OutD,
+          class OutE>
+inline void DispatchToMethod(ObjT* obj, Method method,
+                             const Tuple6<InA, InB, InC, InD, InE, InF>& in,
+                             Tuple5<OutA, OutB, OutC, OutD, OutE>* out) {
+  (obj->*method)(in.a, in.b, in.c, in.d, in.e, in.f, &out->a, &out->b, &out->c,
+                 &out->d, &out->e);
+}
+
+#endif  // BASE_TUPLE_H__
-- 
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