Move third_party/mojo/src/mojo/public to mojo/public

third_party/mojo/src/mojo/public/cpp/bindings/lib/map_serialization.h

-// Copyright 2014 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.
-
-#ifndef MOJO_PUBLIC_CPP_BINDINGS_LIB_MAP_SERIALIZATION_H_
-#define MOJO_PUBLIC_CPP_BINDINGS_LIB_MAP_SERIALIZATION_H_
-
-#include "mojo/public/cpp/bindings/lib/array_internal.h"
-#include "mojo/public/cpp/bindings/lib/map_data_internal.h"
-#include "mojo/public/cpp/bindings/lib/map_internal.h"
-#include "mojo/public/cpp/bindings/lib/string_serialization.h"
-#include "mojo/public/cpp/bindings/map.h"
-
-namespace mojo {
-
-template <typename Key, typename Value>
-inline size_t GetSerializedSize_(const Map<Key, Value>& input);
-
-template <typename ValidateParams, typename E, typename F>
-inline void SerializeArray_(
-    Array<E> input,
-    internal::Buffer* buf,
-    internal::Array_Data<F>** output,
-    const internal::ArrayValidateParams* validate_params);
-
-namespace internal {
-
-template <typename MapType,
-          typename DataType,
-          bool value_is_move_only_type = IsMoveOnlyType<MapType>::value,
-          bool is_union =
-              IsUnionDataType<typename RemovePointer<DataType>::type>::value>
-struct MapSerializer;
-
-template <typename MapType, typename DataType>
-struct MapSerializer<MapType, DataType, false, false> {
-  static size_t GetBaseArraySize(size_t count) {
-    return Align(count * sizeof(DataType));
-  }
-  static size_t GetItemSize(const MapType& item) { return 0; }
-};
-
-template <>
-struct MapSerializer<bool, bool, false, false> {
-  static size_t GetBaseArraySize(size_t count) {
-    return Align((count + 7) / 8);
-  }
-  static size_t GetItemSize(bool item) { return 0; }
-};
-
-template <typename H>
-struct MapSerializer<ScopedHandleBase<H>, H, true, false> {
-  static size_t GetBaseArraySize(size_t count) {
-    return Align(count * sizeof(H));
-  }
-  static size_t GetItemSize(const ScopedHandleBase<H>& item) { return 0; }
-};
-
-// This template must only apply to pointer mojo entity (structs and arrays).
-// This is done by ensuring that WrapperTraits<S>::DataType is a pointer.
-template <typename S>
-struct MapSerializer<
-    S,
-    typename EnableIf<IsPointer<typename WrapperTraits<S>::DataType>::value,
-                      typename WrapperTraits<S>::DataType>::type,
-    true,
-    false> {
-  typedef
-      typename RemovePointer<typename WrapperTraits<S>::DataType>::type S_Data;
-  static size_t GetBaseArraySize(size_t count) {
-    return count * sizeof(StructPointer<S_Data>);
-  }
-  static size_t GetItemSize(const S& item) { return GetSerializedSize_(item); }
-};
-
-template <typename U, typename U_Data>
-struct MapSerializer<U, U_Data*, true, true> {
-  static size_t GetBaseArraySize(size_t count) {
-    return count * sizeof(U_Data);
-  }
-  static size_t GetItemSize(const U& item) {
-    return GetSerializedSize_(item, true);
-  }
-};
-
-template <>
-struct MapSerializer<String, String_Data*, false, false> {
-  static size_t GetBaseArraySize(size_t count) {
-    return count * sizeof(StringPointer);
-  }
-  static size_t GetItemSize(const String& item) {
-    return GetSerializedSize_(item);
-  }
-};
-
-}  // namespace internal
-
-// TODO(erg): This can't go away yet. We still need to calculate out the size
-// of a struct header, and two arrays.
-template <typename MapKey, typename MapValue>
-inline size_t GetSerializedSize_(const Map<MapKey, MapValue>& input) {
-  if (!input)
-    return 0;
-  typedef typename internal::WrapperTraits<MapKey>::DataType DataKey;
-  typedef typename internal::WrapperTraits<MapValue>::DataType DataValue;
-
-  size_t count = input.size();
-  size_t struct_overhead = sizeof(mojo::internal::Map_Data<DataKey, DataValue>);
-  size_t key_base_size =
-      sizeof(internal::ArrayHeader) +
-      internal::MapSerializer<MapKey, DataKey>::GetBaseArraySize(count);
-  size_t value_base_size =
-      sizeof(internal::ArrayHeader) +
-      internal::MapSerializer<MapValue, DataValue>::GetBaseArraySize(count);
-
-  size_t key_data_size = 0;
-  size_t value_data_size = 0;
-  for (auto it = input.begin(); it != input.end(); ++it) {
-    key_data_size +=
-        internal::MapSerializer<MapKey, DataKey>::GetItemSize(it.GetKey());
-    value_data_size +=
-        internal::MapSerializer<MapValue, DataValue>::GetItemSize(
-            it.GetValue());
-  }
-
-  return struct_overhead + key_base_size + key_data_size + value_base_size +
-         value_data_size;
-}
-
-// We don't need an ArrayValidateParams instance for key validation since
-// we can deduce it from the Key type. (which can only be primitive types or
-// non-nullable strings.)
-template <typename MapKey,
-          typename MapValue,
-          typename DataKey,
-          typename DataValue>
-inline void SerializeMap_(
-    Map<MapKey, MapValue> input,
-    internal::Buffer* buf,
-    internal::Map_Data<DataKey, DataValue>** output,
-    const internal::ArrayValidateParams* value_validate_params) {
-  if (input) {
-    internal::Map_Data<DataKey, DataValue>* result =
-        internal::Map_Data<DataKey, DataValue>::New(buf);
-    if (result) {
-      Array<MapKey> keys;
-      Array<MapValue> values;
-      input.DecomposeMapTo(&keys, &values);
-      const internal::ArrayValidateParams* key_validate_params =
-          internal::MapKeyValidateParamsFactory<DataKey>::Get();
-      SerializeArray_(keys.Pass(), buf, &result->keys.ptr, key_validate_params);
-      SerializeArray_(values.Pass(), buf, &result->values.ptr,
-                      value_validate_params);
-    }
-    *output = result;
-  } else {
-    *output = nullptr;
-  }
-}
-
-template <typename MapKey,
-          typename MapValue,
-          typename DataKey,
-          typename DataValue>
-inline void Deserialize_(internal::Map_Data<DataKey, DataValue>* input,
-                         Map<MapKey, MapValue>* output) {
-  if (input) {
-    Array<MapKey> keys;
-    Array<MapValue> values;
-
-    Deserialize_(input->keys.ptr, &keys);
-    Deserialize_(input->values.ptr, &values);
-
-    *output = Map<MapKey, MapValue>(keys.Pass(), values.Pass());
-  } else {
-    output->reset();
-  }
-}
-
-}  // namespace mojo
-
-#endif  // MOJO_PUBLIC_CPP_BINDINGS_LIB_MAP_SERIALIZATION_H_