Revert "third_party/protobuf: Update to HEAD (83d681ee2c)"

third_party/protobuf/src/google/protobuf/repeated_field_reflection.h

 // Protocol Buffers - Google's data interchange format
 // Copyright 2008 Google Inc.  All rights reserved.
 // https://developers.google.com/protocol-buffers/
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 // notice, this list of conditions and the following disclaimer.
@@ skipping 10 matching lines @@
 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-// This header defines the RepeatedFieldRef class template used to access
-// repeated fields with protobuf reflection API.
-#ifndef GOOGLE_PROTOBUF_REFLECTION_H__
-#define GOOGLE_PROTOBUF_REFLECTION_H__
+// This header file is protobuf internal. Users should not include this
+// file directly.
+#ifndef GOOGLE_PROTOBUF_REPEATED_FIELD_REFLECTION_H__
+#define GOOGLE_PROTOBUF_REPEATED_FIELD_REFLECTION_H__
 
 #include <memory>
 #ifndef _SHARED_PTR_H
 #include <google/protobuf/stubs/shared_ptr.h>
 #endif
 
-#include <google/protobuf/message.h>
-#include <google/protobuf/generated_enum_util.h>
+#include <google/protobuf/generated_enum_reflection.h>
 
 namespace google {
 namespace protobuf {
 namespace internal {
-template<typename T, typename Enable = void>
-struct RefTypeTraits;
-}  // namespace internal
-
-template<typename T>
-RepeatedFieldRef<T> Reflection::GetRepeatedFieldRef(
-    const Message& message, const FieldDescriptor* field) const {
-  return RepeatedFieldRef<T>(message, field);
-}
-
-template<typename T>
-MutableRepeatedFieldRef<T> Reflection::GetMutableRepeatedFieldRef(
-    Message* message, const FieldDescriptor* field) const {
-  return MutableRepeatedFieldRef<T>(message, field);
-}
-
-// RepeatedFieldRef definition for non-message types.
-template<typename T>
-class RepeatedFieldRef<
-    T, typename internal::enable_if<!internal::is_base_of<Message, T>::value>::type> {
-  typedef typename internal::RefTypeTraits<T>::iterator IteratorType;
-  typedef typename internal::RefTypeTraits<T>::AccessorType AccessorType;
-
- public:
-  bool empty() const {
-    return accessor_->IsEmpty(data_);
-  }
-  int size() const {
-    return accessor_->Size(data_);
-  }
-  T Get(int index) const {
-    return accessor_->template Get<T>(data_, index);
-  }
-
-  typedef IteratorType iterator;
-  typedef IteratorType const_iterator;
-  typedef T value_type;
-  typedef T& reference;
-  typedef const T& const_reference;
-  typedef int size_type;
-  typedef ptrdiff_t difference_type;
-
-  iterator begin() const {
-    return iterator(data_, accessor_, true);
-  }
-  iterator end() const {
-    return iterator(data_, accessor_, false);
-  }
-
- private:
-  friend class Reflection;
-  RepeatedFieldRef(
-      const Message& message,
-      const FieldDescriptor* field) {
-    const Reflection* reflection = message.GetReflection();
-    data_ = reflection->RepeatedFieldData(
-        const_cast<Message*>(&message), field,
-        internal::RefTypeTraits<T>::cpp_type, NULL);
-    accessor_ = reflection->RepeatedFieldAccessor(field);
-  }
-
-  const void* data_;
-  const AccessorType* accessor_;
-};
-
-// MutableRepeatedFieldRef definition for non-message types.
-template<typename T>
-class MutableRepeatedFieldRef<
-    T, typename internal::enable_if<!internal::is_base_of<Message, T>::value>::type> {
-  typedef typename internal::RefTypeTraits<T>::AccessorType AccessorType;
-
- public:
-  bool empty() const {
-    return accessor_->IsEmpty(data_);
-  }
-  int size() const {
-    return accessor_->Size(data_);
-  }
-  T Get(int index) const {
-    return accessor_->template Get<T>(data_, index);
-  }
-
-  void Set(int index, const T& value) const {
-    accessor_->template Set<T>(data_, index, value);
-  }
-  void Add(const T& value) const {
-    accessor_->template Add<T>(data_, value);
-  }
-  void RemoveLast() const {
-    accessor_->RemoveLast(data_);
-  }
-  void SwapElements(int index1, int index2) const {
-    accessor_->SwapElements(data_, index1, index2);
-  }
-  void Clear() const {
-    accessor_->Clear(data_);
-  }
-
-  void Swap(const MutableRepeatedFieldRef& other) const {
-    accessor_->Swap(data_, other.accessor_, other.data_);
-  }
-
-  template<typename Container>
-  void MergeFrom(const Container& container) const {
-    typedef typename Container::const_iterator Iterator;
-    for (Iterator it = container.begin(); it != container.end(); ++it) {
-      Add(*it);
-    }
-  }
-  template<typename Container>
-  void CopyFrom(const Container& container) const {
-    Clear();
-    MergeFrom(container);
-  }
-
- private:
-  friend class Reflection;
-  MutableRepeatedFieldRef(
-      Message* message,
-      const FieldDescriptor* field) {
-    const Reflection* reflection = message->GetReflection();
-    data_ = reflection->RepeatedFieldData(
-        message, field, internal::RefTypeTraits<T>::cpp_type, NULL);
-    accessor_ = reflection->RepeatedFieldAccessor(field);
-  }
-
-  void* data_;
-  const AccessorType* accessor_;
-};
-
-// RepeatedFieldRef definition for message types.
-template<typename T>
-class RepeatedFieldRef<
-    T, typename internal::enable_if<internal::is_base_of<Message, T>::value>::type> {
-  typedef typename internal::RefTypeTraits<T>::iterator IteratorType;
-  typedef typename internal::RefTypeTraits<T>::AccessorType AccessorType;
-
- public:
-  bool empty() const {
-    return accessor_->IsEmpty(data_);
-  }
-  int size() const {
-    return accessor_->Size(data_);
-  }
-  // This method returns a reference to the underlying message object if it
-  // exists. If a message object doesn't exist (e.g., data stored in serialized
-  // form), scratch_space will be filled with the data and a reference to it
-  // will be returned.
-  //
-  // Example:
-  //   RepeatedFieldRef<Message> h = ...
-  //   unique_ptr<Message> scratch_space(h.NewMessage());
-  //   const Message& item = h.Get(index, scratch_space.get());
-  const T& Get(int index, T* scratch_space) const {
-    return *static_cast<const T*>(accessor_->Get(data_, index, scratch_space));
-  }
-  // Create a new message of the same type as the messages stored in this
-  // repeated field. Caller takes ownership of the returned object.
-  T* NewMessage() const {
-    return static_cast<T*>(default_instance_->New());
-  }
-
-  typedef IteratorType iterator;
-  typedef IteratorType const_iterator;
-  typedef T value_type;
-  typedef T& reference;
-  typedef const T& const_reference;
-  typedef int size_type;
-  typedef ptrdiff_t difference_type;
-
-  iterator begin() const {
-    return iterator(data_, accessor_, true, NewMessage());
-  }
-  iterator end() const {
-    // The end iterator must not be dereferenced, no need for scratch space.
-    return iterator(data_, accessor_, false, NULL);
-  }
-
- private:
-  friend class Reflection;
-  RepeatedFieldRef(
-      const Message& message,
-      const FieldDescriptor* field) {
-    const Reflection* reflection = message.GetReflection();
-    data_ = reflection->RepeatedFieldData(
-        const_cast<Message*>(&message), field,
-        internal::RefTypeTraits<T>::cpp_type,
-        internal::RefTypeTraits<T>::GetMessageFieldDescriptor());
-    accessor_ = reflection->RepeatedFieldAccessor(field);
-    default_instance_ =
-        reflection->GetMessageFactory()->GetPrototype(field->message_type());
-  }
-
-  const void* data_;
-  const AccessorType* accessor_;
-  const Message* default_instance_;
-};
-
-// MutableRepeatedFieldRef definition for message types.
-template<typename T>
-class MutableRepeatedFieldRef<
-    T, typename internal::enable_if<internal::is_base_of<Message, T>::value>::type> {
-  typedef typename internal::RefTypeTraits<T>::AccessorType AccessorType;
-
- public:
-  bool empty() const {
-    return accessor_->IsEmpty(data_);
-  }
-  int size() const {
-    return accessor_->Size(data_);
-  }
-  // See comments for RepeatedFieldRef<Message>::Get()
-  const T& Get(int index, T* scratch_space) const {
-    return *static_cast<const T*>(accessor_->Get(data_, index, scratch_space));
-  }
-  // Create a new message of the same type as the messages stored in this
-  // repeated field. Caller takes ownership of the returned object.
-  T* NewMessage() const {
-    return static_cast<T*>(default_instance_->New());
-  }
-
-  void Set(int index, const T& value) const {
-    accessor_->Set(data_, index, &value);
-  }
-  void Add(const T& value) const {
-    accessor_->Add(data_, &value);
-  }
-  void RemoveLast() const {
-    accessor_->RemoveLast(data_);
-  }
-  void SwapElements(int index1, int index2) const {
-    accessor_->SwapElements(data_, index1, index2);
-  }
-  void Clear() const {
-    accessor_->Clear(data_);
-  }
-
-  void Swap(const MutableRepeatedFieldRef& other) const {
-    accessor_->Swap(data_, other.accessor_, other.data_);
-  }
-
-  template<typename Container>
-  void MergeFrom(const Container& container) const {
-    typedef typename Container::const_iterator Iterator;
-    for (Iterator it = container.begin(); it != container.end(); ++it) {
-      Add(*it);
-    }
-  }
-  template<typename Container>
-  void CopyFrom(const Container& container) const {
-    Clear();
-    MergeFrom(container);
-  }
-
- private:
-  friend class Reflection;
-  MutableRepeatedFieldRef(
-      Message* message,
-      const FieldDescriptor* field) {
-    const Reflection* reflection = message->GetReflection();
-    data_ = reflection->RepeatedFieldData(
-        message, field, internal::RefTypeTraits<T>::cpp_type,
-        internal::RefTypeTraits<T>::GetMessageFieldDescriptor());
-    accessor_ = reflection->RepeatedFieldAccessor(field);
-    default_instance_ =
-        reflection->GetMessageFactory()->GetPrototype(field->message_type());
-  }
-
-  void* data_;
-  const AccessorType* accessor_;
-  const Message* default_instance_;
-};
-
-namespace internal {
 // Interfaces used to implement reflection RepeatedFieldRef API.
 // Reflection::GetRepeatedAccessor() should return a pointer to an singleton
 // object that implements the below interface.
 //
 // This interface passes/returns values using void pointers. The actual type
 // of the value depends on the field's cpp_type. Following is a mapping from
 // cpp_type to the type that should be used in this interface:
 //
 //   field->cpp_type()      T                Actual type of void*
 //   CPPTYPE_INT32        int32                   int32
@@ skipping 31 matching lines @@
       const Field* data, int index, Value* scratch_space) const = 0;
 
   virtual void Clear(Field* data) const = 0;
   virtual void Set(Field* data, int index, const Value* value) const = 0;
   virtual void Add(Field* data, const Value* value) const = 0;
   virtual void RemoveLast(Field* data) const = 0;
   virtual void SwapElements(Field* data, int index1, int index2) const = 0;
   virtual void Swap(Field* data, const RepeatedFieldAccessor* other_mutator,
                     Field* other_data) const = 0;
 
-  // Create an iterator that points at the beginning of the repeated field.
+  // Create an iterator that points at the begining of the repeated field.
   virtual Iterator* BeginIterator(const Field* data) const = 0;
   // Create an iterator that points at the end of the repeated field.
   virtual Iterator* EndIterator(const Field* data) const = 0;
   // Make a copy of an iterator and return the new copy.
   virtual Iterator* CopyIterator(const Field* data,
                                  const Iterator* iterator) const = 0;
   // Move an iterator to point to the next element.
   virtual Iterator* AdvanceIterator(const Field* data,
                                     Iterator* iterator) const = 0;
   // Compare whether two iterators point to the same element.
@@ skipping 51 matching lines @@
 template<typename T>
 class RepeatedFieldRefIterator
     : public std::iterator<std::forward_iterator_tag, T> {
   typedef typename RefTypeTraits<T>::AccessorValueType AccessorValueType;
   typedef typename RefTypeTraits<T>::IteratorValueType IteratorValueType;
   typedef typename RefTypeTraits<T>::IteratorPointerType IteratorPointerType;
 
  public:
   // Constructor for non-message fields.
   RepeatedFieldRefIterator(const void* data,
-                           const RepeatedFieldAccessor* accessor, bool begin)
-      : data_(data),
-        accessor_(accessor),
-        iterator_(begin ? accessor->BeginIterator(data)
-                        : accessor->EndIterator(data)),
-        // The end iterator must not be dereferenced, no need for scratch space.
-        scratch_space_(begin ? new AccessorValueType : NULL) {}
+                           const RepeatedFieldAccessor* accessor,
+                           bool begin)
+      : data_(data), accessor_(accessor),
+        iterator_(begin ? accessor->BeginIterator(data) :
+                          accessor->EndIterator(data)),
+        scratch_space_(new AccessorValueType) {
+  }
   // Constructor for message fields.
   RepeatedFieldRefIterator(const void* data,
                            const RepeatedFieldAccessor* accessor,
                            bool begin,
                            AccessorValueType* scratch_space)
       : data_(data), accessor_(accessor),
         iterator_(begin ? accessor->BeginIterator(data) :
                           accessor->EndIterator(data)),
         scratch_space_(scratch_space) {
   }
@@ skipping 98 matching lines @@
   typedef int32* IteratorPointerType;
   static const FieldDescriptor::CppType cpp_type =
       FieldDescriptor::CPPTYPE_ENUM;
   static const Descriptor* GetMessageFieldDescriptor() {
     return NULL;
   }
 };
 
 template<typename T>
 struct RefTypeTraits<
-    T, typename internal::enable_if< ::google::protobuf::internal::is_same<string, T>::value>::type> {
+    T, typename internal::enable_if<internal::is_same<string, T>::value>::type> {
   typedef RepeatedFieldRefIterator<T> iterator;
   typedef RepeatedFieldAccessor AccessorType;
   typedef string AccessorValueType;
   typedef string IteratorValueType;
   typedef string* IteratorPointerType;
   static const FieldDescriptor::CppType cpp_type =
       FieldDescriptor::CPPTYPE_STRING;
   static const Descriptor* GetMessageFieldDescriptor() {
     return NULL;
   }
@@ skipping 22 matching lines @@
   typedef const T* IteratorPointerType;
   static const FieldDescriptor::CppType cpp_type =
       FieldDescriptor::CPPTYPE_MESSAGE;
   static const Descriptor* GetMessageFieldDescriptor() {
     return MessageDescriptorGetter<T>::get();
   }
 };
 }  // namespace internal
 }  // namespace protobuf
 }  // namespace google
-
-#endif  // GOOGLE_PROTOBUF_REFLECTION_H__
+#endif  // GOOGLE_PROTOBUF_REPEATED_FIELD_REFLECTION_H__