| Index: third_party/libaddressinput/chromium/cpp/include/libaddressinput/util/internal/move.h
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| diff --git a/third_party/libaddressinput/chromium/cpp/include/libaddressinput/util/internal/move.h b/third_party/libaddressinput/chromium/cpp/include/libaddressinput/util/internal/move.h
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| deleted file mode 100644
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| index e10ce3d4f6b793f321e7517e186518113e5753b4..0000000000000000000000000000000000000000
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| --- a/third_party/libaddressinput/chromium/cpp/include/libaddressinput/util/internal/move.h
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| +++ /dev/null
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| @@ -1,218 +0,0 @@
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| -// Copyright 2013 The Chromium Authors. All rights reserved.
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| -// Use of this source code is governed by a BSD-style license that can be
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| -// found in the LICENSE file.
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| -
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| -#ifndef I18N_ADDRESSINPUT_UTIL_INTERNAL_MOVE_H_
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| -#define I18N_ADDRESSINPUT_UTIL_INTERNAL_MOVE_H_
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| -
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| -// Macro with the boilerplate that makes a type move-only in C++03.
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| -//
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| -// USAGE
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| -//
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| -// This macro should be used instead of DISALLOW_COPY_AND_ASSIGN to create
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| -// a "move-only" type.  Unlike DISALLOW_COPY_AND_ASSIGN, this macro should be
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| -// the first line in a class declaration.
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| -//
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| -// A class using this macro must call .Pass() (or somehow be an r-value already)
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| -// before it can be:
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| -//
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| -//   * Passed as a function argument
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| -//   * Used as the right-hand side of an assignment
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| -//   * Returned from a function
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| -//
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| -// Each class will still need to define their own "move constructor" and "move
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| -// operator=" to make this useful.  Here's an example of the macro, the move
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| -// constructor, and the move operator= from the scoped_ptr class:
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| -//
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| -//  template <typename T>
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| -//  class scoped_ptr {
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| -//     MOVE_ONLY_TYPE_FOR_CPP_03(scoped_ptr, RValue)
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| -//   public:
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| -//    scoped_ptr(RValue& other) : ptr_(other.release()) { }
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| -//    scoped_ptr& operator=(RValue& other) {
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| -//      swap(other);
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| -//      return *this;
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| -//    }
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| -//  };
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| -//
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| -// Note that the constructor must NOT be marked explicit.
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| -//
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| -// For consistency, the second parameter to the macro should always be RValue
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| -// unless you have a strong reason to do otherwise.  It is only exposed as a
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| -// macro parameter so that the move constructor and move operator= don't look
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| -// like they're using a phantom type.
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| -//
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| -//
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| -// HOW THIS WORKS
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| -//
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| -// For a thorough explanation of this technique, see:
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| -//
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| -//   http://en.wikibooks.org/wiki/More_C%2B%2B_Idioms/Move_Constructor
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| -//
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| -// The summary is that we take advantage of 2 properties:
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| -//
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| -//   1) non-const references will not bind to r-values.
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| -//   2) C++ can apply one user-defined conversion when initializing a
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| -//      variable.
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| -//
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| -// The first lets us disable the copy constructor and assignment operator
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| -// by declaring private version of them with a non-const reference parameter.
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| -//
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| -// For l-values, direct initialization still fails like in
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| -// DISALLOW_COPY_AND_ASSIGN because the copy constructor and assignment
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| -// operators are private.
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| -//
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| -// For r-values, the situation is different. The copy constructor and
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| -// assignment operator are not viable due to (1), so we are trying to call
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| -// a non-existent constructor and non-existing operator= rather than a private
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| -// one.  Since we have not committed an error quite yet, we can provide an
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| -// alternate conversion sequence and a constructor.  We add
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| -//
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| -//   * a private struct named "RValue"
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| -//   * a user-defined conversion "operator RValue()"
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| -//   * a "move constructor" and "move operator=" that take the RValue& as
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| -//     their sole parameter.
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| -//
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| -// Only r-values will trigger this sequence and execute our "move constructor"
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| -// or "move operator=."  L-values will match the private copy constructor and
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| -// operator= first giving a "private in this context" error.  This combination
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| -// gives us a move-only type.
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| -//
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| -// For signaling a destructive transfer of data from an l-value, we provide a
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| -// method named Pass() which creates an r-value for the current instance
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| -// triggering the move constructor or move operator=.
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| -//
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| -// Other ways to get r-values is to use the result of an expression like a
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| -// function call.
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| -//
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| -// Here's an example with comments explaining what gets triggered where:
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| -//
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| -//    class Foo {
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| -//      MOVE_ONLY_TYPE_FOR_CPP_03(Foo, RValue);
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| -//
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| -//     public:
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| -//       ... API ...
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| -//       Foo(RValue other);           // Move constructor.
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| -//       Foo& operator=(RValue rhs);  // Move operator=
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| -//    };
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| -//
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| -//    Foo MakeFoo();  // Function that returns a Foo.
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| -//
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| -//    Foo f;
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| -//    Foo f_copy(f);  // ERROR: Foo(Foo&) is private in this context.
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| -//    Foo f_assign;
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| -//    f_assign = f;   // ERROR: operator=(Foo&) is private in this context.
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| -//
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| -//
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| -//    Foo f(MakeFoo());      // R-value so alternate conversion executed.
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| -//    Foo f_copy(f.Pass());  // R-value so alternate conversion executed.
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| -//    f = f_copy.Pass();     // R-value so alternate conversion executed.
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| -//
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| -//
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| -// IMPLEMENTATION SUBTLETIES WITH RValue
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| -//
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| -// The RValue struct is just a container for a pointer back to the original
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| -// object. It should only ever be created as a temporary, and no external
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| -// class should ever declare it or use it in a parameter.
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| -//
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| -// It is tempting to want to use the RValue type in function parameters, but
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| -// excluding the limited usage here for the move constructor and move
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| -// operator=, doing so would mean that the function could take both r-values
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| -// and l-values equially which is unexpected.  See COMPARED To Boost.Move for
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| -// more details.
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| -//
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| -// An alternate, and incorrect, implementation of the RValue class used by
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| -// Boost.Move makes RValue a fieldless child of the move-only type. RValue&
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| -// is then used in place of RValue in the various operators.  The RValue& is
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| -// "created" by doing *reinterpret_cast<RValue*>(this).  This has the appeal
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| -// of never creating a temporary RValue struct even with optimizations
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| -// disabled.  Also, by virtue of inheritance you can treat the RValue
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| -// reference as if it were the move-only type itself.  Unfortunately,
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| -// using the result of this reinterpret_cast<> is actually undefined behavior
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| -// due to C++98 5.2.10.7. In certain compilers (e.g., NaCl) the optimizer
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| -// will generate non-working code.
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| -//
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| -// In optimized builds, both implementations generate the same assembly so we
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| -// choose the one that adheres to the standard.
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| -//
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| -//
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| -// WHY HAVE typedef void MoveOnlyTypeForCPP03
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| -//
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| -// Callback<>/Bind() needs to understand movable-but-not-copyable semantics
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| -// to call .Pass() appropriately when it is expected to transfer the value.
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| -// The cryptic typedef MoveOnlyTypeForCPP03 is added to make this check
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| -// easy and automatic in helper templates for Callback<>/Bind().
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| -// See IsMoveOnlyType template and its usage in base/callback_internal.h
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| -// for more details.
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| -//
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| -//
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| -// COMPARED TO C++11
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| -//
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| -// In C++11, you would implement this functionality using an r-value reference
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| -// and our .Pass() method would be replaced with a call to std::move().
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| -//
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| -// This emulation also has a deficiency where it uses up the single
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| -// user-defined conversion allowed by C++ during initialization.  This can
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| -// cause problems in some API edge cases.  For instance, in scoped_ptr, it is
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| -// impossible to make a function "void Foo(scoped_ptr<Parent> p)" accept a
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| -// value of type scoped_ptr<Child> even if you add a constructor to
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| -// scoped_ptr<> that would make it look like it should work.  C++11 does not
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| -// have this deficiency.
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| -//
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| -//
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| -// COMPARED TO Boost.Move
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| -//
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| -// Our implementation similar to Boost.Move, but we keep the RValue struct
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| -// private to the move-only type, and we don't use the reinterpret_cast<> hack.
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| -//
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| -// In Boost.Move, RValue is the boost::rv<> template.  This type can be used
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| -// when writing APIs like:
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| -//
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| -//   void MyFunc(boost::rv<Foo>& f)
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| -//
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| -// that can take advantage of rv<> to avoid extra copies of a type.  However you
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| -// would still be able to call this version of MyFunc with an l-value:
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| -//
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| -//   Foo f;
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| -//   MyFunc(f);  // Uh oh, we probably just destroyed |f| w/o calling Pass().
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| -//
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| -// unless someone is very careful to also declare a parallel override like:
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| -//
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| -//   void MyFunc(const Foo& f)
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| -//
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| -// that would catch the l-values first.  This was declared unsafe in C++11 and
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| -// a C++11 compiler will explicitly fail MyFunc(f).  Unfortunately, we cannot
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| -// ensure this in C++03.
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| -//
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| -// Since we have no need for writing such APIs yet, our implementation keeps
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| -// RValue private and uses a .Pass() method to do the conversion instead of
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| -// trying to write a version of "std::move()." Writing an API like std::move()
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| -// would require the RValue struct to be public.
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| -//
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| -//
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| -// CAVEATS
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| -//
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| -// If you include a move-only type as a field inside a class that does not
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| -// explicitly declare a copy constructor, the containing class's implicit
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| -// copy constructor will change from Containing(const Containing&) to
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| -// Containing(Containing&).  This can cause some unexpected errors.
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| -//
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| -//   http://llvm.org/bugs/show_bug.cgi?id=11528
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| -//
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| -// The workaround is to explicitly declare your copy constructor.
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| -//
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| -#define MOVE_ONLY_TYPE_FOR_CPP_03(type, rvalue_type) \
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| - private: \
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| -  struct rvalue_type { \
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| -    explicit rvalue_type(type* object) : object(object) {} \
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| -    type* object; \
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| -  }; \
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| -  type(type&); \
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| -  void operator=(type&); \
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| - public: \
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| -  operator rvalue_type() { return rvalue_type(this); } \
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| -  type Pass() { return type(rvalue_type(this)); } \
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| -  typedef void MoveOnlyTypeForCPP03; \
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| - private:
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| -
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| -#endif  // I18N_ADDRESSINPUT_UTIL_INTERNAL_MOVE_H_
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| 
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