From 3345a6884c488ff3a535c2c9acdd33d74b37e311 Mon Sep 17 00:00:00 2001
From: Iain Merrick <husky@google.com>
Date: Tue, 19 Oct 2010 14:37:37 +0100
Subject: Merge Chromium at 7.0.540.0 : Initial merge by git

Not including third_party/icu as it contains huge data files that break Gerrit, and aren't actually used.

Change-Id: I428a386e70f3b58cacd28677b8cfda282e891e15
---
 base/tuple.h | 265 +++++++++++++++++++++++++++++++++++------------------------
 1 file changed, 157 insertions(+), 108 deletions(-)

(limited to 'base/tuple.h')

diff --git a/base/tuple.h b/base/tuple.h
index d17d9f5..b67d924 100644
--- a/base/tuple.h
+++ b/base/tuple.h
@@ -28,6 +28,7 @@
 
 #ifndef BASE_TUPLE_H__
 #define BASE_TUPLE_H__
+#pragma once
 
 // Traits ----------------------------------------------------------------------
 //
@@ -51,6 +52,9 @@ struct TupleTraits<P&> {
   typedef P& ParamType;
 };
 
+template <class P>
+struct TupleTypes { };
+
 // Tuple -----------------------------------------------------------------------
 //
 // This set of classes is useful for bundling 0 or more heterogeneous data types
@@ -75,9 +79,6 @@ 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) {}
@@ -90,12 +91,6 @@ 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,
@@ -113,15 +108,6 @@ struct Tuple3 {
   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,
@@ -142,18 +128,6 @@ struct Tuple4 {
   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,
@@ -177,21 +151,6 @@ struct Tuple5 {
   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,
@@ -218,24 +177,6 @@ struct Tuple6 {
   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,
@@ -265,27 +206,6 @@ struct Tuple7 {
   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,
@@ -319,30 +239,6 @@ struct Tuple8 {
   typedef F TypeF;
   typedef G TypeG;
   typedef H TypeH;
-  typedef Tuple8<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,
-    typename TupleTraits<H>::ValueType> ValueTuple;
-  typedef Tuple8<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,
-    typename TupleTraits<H>::RefType> RefTuple;
-  typedef Tuple8<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,
-    typename TupleTraits<H>::ParamType> ParamTuple;
 
   Tuple8() {}
   Tuple8(typename TupleTraits<A>::ParamType a,
@@ -366,6 +262,159 @@ struct Tuple8 {
   H h;
 };
 
+// Tuple types ----------------------------------------------------------------
+//
+// Allows for selection of ValueTuple/RefTuple/ParamTuple without needing the
+// definitions of class types the tuple takes as parameters.
+
+template <>
+struct TupleTypes< Tuple0 > {
+  typedef Tuple0 ValueTuple;
+  typedef Tuple0 RefTuple;
+  typedef Tuple0 ParamTuple;
+};
+
+template <class A>
+struct TupleTypes< Tuple1<A> > {
+  typedef Tuple1<typename TupleTraits<A>::ValueType> ValueTuple;
+  typedef Tuple1<typename TupleTraits<A>::RefType> RefTuple;
+  typedef Tuple1<typename TupleTraits<A>::ParamType> ParamTuple;
+};
+
+template <class A, class B>
+struct TupleTypes< Tuple2<A, B> > {
+  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;
+};
+
+template <class A, class B, class C>
+struct TupleTypes< Tuple3<A, B, C> > {
+  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;
+};
+
+template <class A, class B, class C, class D>
+struct TupleTypes< Tuple4<A, B, C, D> > {
+  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;
+};
+
+template <class A, class B, class C, class D, class E>
+struct TupleTypes< Tuple5<A, B, C, D, E> > {
+  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;
+};
+
+template <class A, class B, class C, class D, class E, class F>
+struct TupleTypes< Tuple6<A, B, C, D, E, F> > {
+  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;
+};
+
+template <class A, class B, class C, class D, class E, class F, class G>
+struct TupleTypes< Tuple7<A, B, C, D, E, F, G> > {
+  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;
+};
+
+template <class A, class B, class C, class D, class E, class F, class G,
+          class H>
+struct TupleTypes< Tuple8<A, B, C, D, E, F, G, H> > {
+  typedef Tuple8<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,
+                 typename TupleTraits<H>::ValueType> ValueTuple;
+typedef Tuple8<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,
+               typename TupleTraits<H>::RefType> RefTuple;
+  typedef Tuple8<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,
+                 typename TupleTraits<H>::ParamType> ParamTuple;
+};
+
 // Tuple creators -------------------------------------------------------------
 //
 // Helper functions for constructing tuples while inferring the template
-- 
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