| // 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_DATA_INTERNAL_H_ |
| #define MOJO_PUBLIC_CPP_BINDINGS_LIB_MAP_DATA_INTERNAL_H_ |
| |
| #include "mojo/public/cpp/bindings/lib/array_internal.h" |
| #include "mojo/public/cpp/bindings/lib/validate_params.h" |
| #include "mojo/public/cpp/bindings/lib/validation_errors.h" |
| #include "mojo/public/cpp/bindings/lib/validation_util.h" |
| |
| namespace mojo { |
| namespace internal { |
| |
| // Map serializes into a struct which has two arrays as struct fields, the keys |
| // and the values. |
| template <typename Key, typename Value> |
| class Map_Data { |
| public: |
| static Map_Data* New(Buffer* buf) { |
| return new (buf->Allocate(sizeof(Map_Data))) Map_Data(); |
| } |
| |
| // |validate_params| must have non-null |key_validate_params| and |
| // |element_validate_params| members. |
| static bool Validate(const void* data, |
| ValidationContext* validation_context, |
| const ContainerValidateParams* validate_params) { |
| if (!data) |
| return true; |
| |
| if (!ValidateStructHeaderAndClaimMemory(data, validation_context)) |
| return false; |
| |
| const Map_Data* object = static_cast<const Map_Data*>(data); |
| if (object->header_.num_bytes != sizeof(Map_Data) || |
| object->header_.version != 0) { |
| ReportValidationError(validation_context, |
| VALIDATION_ERROR_UNEXPECTED_STRUCT_HEADER); |
| return false; |
| } |
| |
| if (!ValidatePointerNonNullable( |
| object->keys, "null key array in map struct", validation_context) || |
| !ValidateContainer(object->keys, validation_context, |
| validate_params->key_validate_params)) { |
| return false; |
| } |
| |
| if (!ValidatePointerNonNullable(object->values, |
| "null value array in map struct", |
| validation_context) || |
| !ValidateContainer(object->values, validation_context, |
| validate_params->element_validate_params)) { |
| return false; |
| } |
| |
| if (object->keys.Get()->size() != object->values.Get()->size()) { |
| ReportValidationError(validation_context, |
| VALIDATION_ERROR_DIFFERENT_SIZED_ARRAYS_IN_MAP); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| StructHeader header_; |
| |
| Pointer<Array_Data<Key>> keys; |
| Pointer<Array_Data<Value>> values; |
| |
| private: |
| Map_Data() { |
| header_.num_bytes = sizeof(*this); |
| header_.version = 0; |
| } |
| ~Map_Data() = delete; |
| }; |
| static_assert(sizeof(Map_Data<char, char>) == 24, "Bad sizeof(Map_Data)"); |
| |
| } // namespace internal |
| } // namespace mojo |
| |
| #endif // MOJO_PUBLIC_CPP_BINDINGS_LIB_MAP_DATA_INTERNAL_H_ |