Initial source checkin.

The source files were determined by building net_unittests in chromium's source
tree. Some of the obvious libraries were left out (v8, gmock, gtest).

The Android.mk file has all the sources (minus unittests and tools) that were
used during net_unittests compilation. Nothing builds yet because of STL but
that is the next task. The .cpp files will most likely not compile anyways
because of the LOCAL_CPP_EXTENSION mod. I will have to break this into multiple
projects to get around that limitation.

1 files changed, 906 insertions, 0 deletions

diff --git a/base/tuple.h b/base/tuple.h
new file mode 100644
index 0000000..b3a7515
--- /dev/null
+++ b/base/tuple.h
@@ -0,0 +1,906 @@
+// 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;
+  typedef Tuple0 ParamTuple;
+};
+
+template <class A>
+struct Tuple1 {
+ public:
+  typedef A TypeA;
+  typedef Tuple1<typename TupleTraits<A>::ValueType> ValueTuple;
+  typedef Tuple1<typename TupleTraits<A>::RefType> RefTuple;
+  typedef Tuple1<typename TupleTraits<A>::ParamType> ParamTuple;
+
+  Tuple1() {}
+  explicit Tuple1(typename TupleTraits<A>::ParamType a) : a(a) {}
+
+  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;
+  typedef Tuple2<typename TupleTraits<A>::ParamType,
+                 typename TupleTraits<B>::ParamType> ParamTuple;
+
+  Tuple2() {}
+  Tuple2(typename TupleTraits<A>::ParamType a,
+         typename TupleTraits<B>::ParamType b)
+      : a(a), b(b) {
+  }
+
+  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;
+  typedef Tuple3<typename TupleTraits<A>::ParamType,
+                 typename TupleTraits<B>::ParamType,
+                 typename TupleTraits<C>::ParamType> ParamTuple;
+
+  Tuple3() {}
+  Tuple3(typename TupleTraits<A>::ParamType a,
+         typename TupleTraits<B>::ParamType b,
+         typename TupleTraits<C>::ParamType c)
+      : a(a), b(b), c(c){
+  }
+
+  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;
+  typedef Tuple4<typename TupleTraits<A>::ParamType,
+                 typename TupleTraits<B>::ParamType,
+                 typename TupleTraits<C>::ParamType,
+                 typename TupleTraits<D>::ParamType> ParamTuple;
+
+  Tuple4() {}
+  Tuple4(typename TupleTraits<A>::ParamType a,
+         typename TupleTraits<B>::ParamType b,
+         typename TupleTraits<C>::ParamType c,
+         typename TupleTraits<D>::ParamType d)
+      : a(a), b(b), c(c), d(d) {
+  }
+
+  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;
+  typedef Tuple5<typename TupleTraits<A>::ParamType,
+    typename TupleTraits<B>::ParamType,
+    typename TupleTraits<C>::ParamType,
+    typename TupleTraits<D>::ParamType,
+    typename TupleTraits<E>::ParamType> ParamTuple;
+
+  Tuple5() {}
+  Tuple5(typename TupleTraits<A>::ParamType a,
+    typename TupleTraits<B>::ParamType b,
+    typename TupleTraits<C>::ParamType c,
+    typename TupleTraits<D>::ParamType d,
+    typename TupleTraits<E>::ParamType e)
+    : a(a), b(b), c(c), d(d), e(e) {
+  }
+
+  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;
+  typedef Tuple6<typename TupleTraits<A>::ParamType,
+    typename TupleTraits<B>::ParamType,
+    typename TupleTraits<C>::ParamType,
+    typename TupleTraits<D>::ParamType,
+    typename TupleTraits<E>::ParamType,
+    typename TupleTraits<F>::ParamType> ParamTuple;
+
+  Tuple6() {}
+  Tuple6(typename TupleTraits<A>::ParamType a,
+    typename TupleTraits<B>::ParamType b,
+    typename TupleTraits<C>::ParamType c,
+    typename TupleTraits<D>::ParamType d,
+    typename TupleTraits<E>::ParamType e,
+    typename TupleTraits<F>::ParamType f)
+    : a(a), b(b), c(c), d(d), e(e), f(f) {
+  }
+
+  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;
+  typedef Tuple7<typename TupleTraits<A>::ParamType,
+    typename TupleTraits<B>::ParamType,
+    typename TupleTraits<C>::ParamType,
+    typename TupleTraits<D>::ParamType,
+    typename TupleTraits<E>::ParamType,
+    typename TupleTraits<F>::ParamType,
+    typename TupleTraits<G>::ParamType> ParamTuple;
+
+  Tuple7() {}
+  Tuple7(typename TupleTraits<A>::ParamType a,
+    typename TupleTraits<B>::ParamType b,
+    typename TupleTraits<C>::ParamType c,
+    typename TupleTraits<D>::ParamType d,
+    typename TupleTraits<E>::ParamType e,
+    typename TupleTraits<F>::ParamType f,
+    typename TupleTraits<G>::ParamType g)
+    : a(a), b(b), c(c), d(d), e(e), f(f), g(g) {
+  }
+
+  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.
+
+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);
+}
+
+// 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__