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Unified Diff: third_party/protobuf/src/google/protobuf/repeated_field_reflection.h

Issue 2599263002: third_party/protobuf: Update to HEAD (f52e188fe4) (Closed)
Patch Set: Address comments Created 4 years ago
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Index: third_party/protobuf/src/google/protobuf/repeated_field_reflection.h
diff --git a/third_party/protobuf/src/google/protobuf/repeated_field_reflection.h b/third_party/protobuf/src/google/protobuf/repeated_field_reflection.h
deleted file mode 100644
index 44d14d5b3ca2efe2d7f4d851b918176bb192ada8..0000000000000000000000000000000000000000
--- a/third_party/protobuf/src/google/protobuf/repeated_field_reflection.h
+++ /dev/null
@@ -1,337 +0,0 @@
-// 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.
-// * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-// * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// 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 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/generated_enum_reflection.h>
-
-namespace google {
-namespace protobuf {
-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
-// CPPTYPE_UINT32 uint32 uint32
-// CPPTYPE_INT64 int64 int64
-// CPPTYPE_UINT64 uint64 uint64
-// CPPTYPE_DOUBLE double double
-// CPPTYPE_FLOAT float float
-// CPPTYPE_BOOL bool bool
-// CPPTYPE_ENUM generated enum type int32
-// CPPTYPE_STRING string string
-// CPPTYPE_MESSAGE generated message type google::protobuf::Message
-// or google::protobuf::Message
-//
-// Note that for enums we use int32 in the interface.
-//
-// You can map from T to the actual type using RefTypeTraits:
-// typedef RefTypeTraits<T>::AccessorValueType ActualType;
-class LIBPROTOBUF_EXPORT RepeatedFieldAccessor {
- public:
- // Typedefs for clarity.
- typedef void Field;
- typedef void Value;
- typedef void Iterator;
-
- virtual ~RepeatedFieldAccessor();
- virtual bool IsEmpty(const Field* data) const = 0;
- virtual int Size(const Field* data) const = 0;
- // Depends on the underlying representation of the repeated field, this
- // method can return a pointer to the underlying object if such an object
- // exists, or fill the data into scratch_space and return scratch_space.
- // Callers of this method must ensure scratch_space is a valid pointer
- // to a mutable object of the correct type.
- virtual const Value* Get(
- 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 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.
- virtual bool EqualsIterator(const Field* data, const Iterator* a,
- const Iterator* b) const = 0;
- // Delete an iterator created by BeginIterator(), EndIterator() and
- // CopyIterator().
- virtual void DeleteIterator(const Field* data, Iterator* iterator) const = 0;
- // Like Get() but for iterators.
- virtual const Value* GetIteratorValue(const Field* data,
- const Iterator* iterator,
- Value* scratch_space) const = 0;
-
- // Templated methods that make using this interface easier for non-message
- // types.
- template<typename T>
- T Get(const Field* data, int index) const {
- typedef typename RefTypeTraits<T>::AccessorValueType ActualType;
- ActualType scratch_space;
- return static_cast<T>(
- *reinterpret_cast<const ActualType*>(
- Get(data, index, static_cast<Value*>(&scratch_space))));
- }
-
- template<typename T, typename ValueType>
- void Set(Field* data, int index, const ValueType& value) const {
- typedef typename RefTypeTraits<T>::AccessorValueType ActualType;
- // In this RepeatedFieldAccessor interface we pass/return data using
- // raw pointers. Type of the data these raw pointers point to should
- // be ActualType. Here we have a ValueType object and want a ActualType
- // pointer. We can't cast a ValueType pointer to an ActualType pointer
- // directly because their type might be different (for enums ValueType
- // may be a generated enum type while ActualType is int32). To be safe
- // we make a copy to get a temporary ActualType object and use it.
- ActualType tmp = static_cast<ActualType>(value);
- Set(data, index, static_cast<const Value*>(&tmp));
- }
-
- template<typename T, typename ValueType>
- void Add(Field* data, const ValueType& value) const {
- typedef typename RefTypeTraits<T>::AccessorValueType ActualType;
- // In this RepeatedFieldAccessor interface we pass/return data using
- // raw pointers. Type of the data these raw pointers point to should
- // be ActualType. Here we have a ValueType object and want a ActualType
- // pointer. We can't cast a ValueType pointer to an ActualType pointer
- // directly because their type might be different (for enums ValueType
- // may be a generated enum type while ActualType is int32). To be safe
- // we make a copy to get a temporary ActualType object and use it.
- ActualType tmp = static_cast<ActualType>(value);
- Add(data, static_cast<const Value*>(&tmp));
- }
-};
-
-// Implement (Mutable)RepeatedFieldRef::iterator
-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)),
- 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) {
- }
- ~RepeatedFieldRefIterator() {
- accessor_->DeleteIterator(data_, iterator_);
- }
- RepeatedFieldRefIterator operator++(int) {
- RepeatedFieldRefIterator tmp(*this);
- iterator_ = accessor_->AdvanceIterator(data_, iterator_);
- return tmp;
- }
- RepeatedFieldRefIterator& operator++() {
- iterator_ = accessor_->AdvanceIterator(data_, iterator_);
- return *this;
- }
- IteratorValueType operator*() const {
- return static_cast<IteratorValueType>(
- *static_cast<const AccessorValueType*>(
- accessor_->GetIteratorValue(
- data_, iterator_, scratch_space_.get())));
- }
- IteratorPointerType operator->() const {
- return static_cast<IteratorPointerType>(
- accessor_->GetIteratorValue(
- data_, iterator_, scratch_space_.get()));
- }
- bool operator!=(const RepeatedFieldRefIterator& other) const {
- assert(data_ == other.data_);
- assert(accessor_ == other.accessor_);
- return !accessor_->EqualsIterator(data_, iterator_, other.iterator_);
- }
- bool operator==(const RepeatedFieldRefIterator& other) const {
- return !this->operator!=(other);
- }
-
- RepeatedFieldRefIterator(const RepeatedFieldRefIterator& other)
- : data_(other.data_), accessor_(other.accessor_),
- iterator_(accessor_->CopyIterator(data_, other.iterator_)) {
- }
- RepeatedFieldRefIterator& operator=(const RepeatedFieldRefIterator& other) {
- if (this != &other) {
- accessor_->DeleteIterator(data_, iterator_);
- data_ = other.data_;
- accessor_ = other.accessor_;
- iterator_ = accessor_->CopyIterator(data_, other.iterator_);
- }
- return *this;
- }
-
- protected:
- const void* data_;
- const RepeatedFieldAccessor* accessor_;
- void* iterator_;
- google::protobuf::scoped_ptr<AccessorValueType> scratch_space_;
-};
-
-// TypeTraits that maps the type parameter T of RepeatedFieldRef or
-// MutableRepeatedFieldRef to corresponding iterator type,
-// RepeatedFieldAccessor type, etc.
-template<typename T>
-struct PrimitiveTraits {
- static const bool is_primitive = false;
-};
-#define DEFINE_PRIMITIVE(TYPE, type) \
- template<> struct PrimitiveTraits<type> { \
- static const bool is_primitive = true; \
- static const FieldDescriptor::CppType cpp_type = \
- FieldDescriptor::CPPTYPE_ ## TYPE; \
- };
-DEFINE_PRIMITIVE(INT32, int32)
-DEFINE_PRIMITIVE(UINT32, uint32)
-DEFINE_PRIMITIVE(INT64, int64)
-DEFINE_PRIMITIVE(UINT64, uint64)
-DEFINE_PRIMITIVE(FLOAT, float)
-DEFINE_PRIMITIVE(DOUBLE, double)
-DEFINE_PRIMITIVE(BOOL, bool)
-#undef DEFINE_PRIMITIVE
-
-template<typename T>
-struct RefTypeTraits<
- T, typename internal::enable_if<PrimitiveTraits<T>::is_primitive>::type> {
- typedef RepeatedFieldRefIterator<T> iterator;
- typedef RepeatedFieldAccessor AccessorType;
- typedef T AccessorValueType;
- typedef T IteratorValueType;
- typedef T* IteratorPointerType;
- static const FieldDescriptor::CppType cpp_type =
- PrimitiveTraits<T>::cpp_type;
- static const Descriptor* GetMessageFieldDescriptor() {
- return NULL;
- }
-};
-
-template<typename T>
-struct RefTypeTraits<
- T, typename internal::enable_if<is_proto_enum<T>::value>::type> {
- typedef RepeatedFieldRefIterator<T> iterator;
- typedef RepeatedFieldAccessor AccessorType;
- // We use int32 for repeated enums in RepeatedFieldAccessor.
- typedef int32 AccessorValueType;
- typedef T IteratorValueType;
- 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<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;
- }
-};
-
-template<typename T>
-struct MessageDescriptorGetter {
- static const Descriptor* get() {
- return T::default_instance().GetDescriptor();
- }
-};
-template<>
-struct MessageDescriptorGetter<Message> {
- static const Descriptor* get() {
- return NULL;
- }
-};
-
-template<typename T>
-struct RefTypeTraits<
- T, typename internal::enable_if<internal::is_base_of<Message, T>::value>::type> {
- typedef RepeatedFieldRefIterator<T> iterator;
- typedef RepeatedFieldAccessor AccessorType;
- typedef Message AccessorValueType;
- typedef const T& IteratorValueType;
- 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_REPEATED_FIELD_REFLECTION_H__

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