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// Copyright 2016 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_COMMON_VALUES_STRUCT_TRAITS_H_
#define MOJO_COMMON_VALUES_STRUCT_TRAITS_H_
#include "base/values.h"
#include "mojo/common/values.mojom.h"
#include "mojo/public/cpp/bindings/array_traits.h"
#include "mojo/public/cpp/bindings/clone_traits.h"
#include "mojo/public/cpp/bindings/map_traits.h"
#include "mojo/public/cpp/bindings/struct_traits.h"
#include "mojo/public/cpp/bindings/union_traits.h"
namespace mojo {
template <>
struct ArrayTraits<base::ListValue> {
using Element = std::unique_ptr<base::Value>;
using ConstIterator = base::ListValue::const_iterator;
static size_t GetSize(const base::ListValue& input) {
return input.GetSize();
}
static ConstIterator GetBegin(const base::ListValue& input) {
return input.begin();
}
static void AdvanceIterator(ConstIterator& iterator) { ++iterator; }
static const Element& GetValue(ConstIterator& iterator) { return *iterator; }
};
template <>
struct StructTraits<common::mojom::ListValueDataView, base::ListValue> {
static const base::ListValue& values(const base::ListValue& value) {
return value;
}
};
template <>
struct StructTraits<common::mojom::ListValueDataView,
std::unique_ptr<base::ListValue>> {
static bool IsNull(const std::unique_ptr<base::ListValue>& value) {
return !value;
}
static void SetToNull(std::unique_ptr<base::ListValue>* value) {
value->reset();
}
static const base::ListValue& values(
const std::unique_ptr<base::ListValue>& value) {
return *value;
}
static bool Read(common::mojom::ListValueDataView data,
std::unique_ptr<base::ListValue>* value);
};
template <>
struct MapTraits<base::DictionaryValue> {
using Key = std::string;
using Value = base::Value;
using Iterator = base::DictionaryValue::Iterator;
static size_t GetSize(const base::DictionaryValue& input) {
return input.size();
}
static Iterator GetBegin(const base::DictionaryValue& input) {
return Iterator(input);
}
static void AdvanceIterator(Iterator& iterator) { iterator.Advance(); }
static const Key& GetKey(Iterator& iterator) { return iterator.key(); }
static const Value& GetValue(Iterator& iterator) { return iterator.value(); }
};
template <>
struct StructTraits<common::mojom::DictionaryValueDataView,
base::DictionaryValue> {
static const base::DictionaryValue& values(
const base::DictionaryValue& value) {
return value;
}
};
template <>
struct StructTraits<common::mojom::DictionaryValueDataView,
std::unique_ptr<base::DictionaryValue>> {
static bool IsNull(const std::unique_ptr<base::DictionaryValue>& value) {
return !value;
}
static void SetToNull(std::unique_ptr<base::DictionaryValue>* value) {
value->reset();
}
static const base::DictionaryValue& values(
const std::unique_ptr<base::DictionaryValue>& value) {
return *value;
}
static bool Read(common::mojom::DictionaryValueDataView data,
std::unique_ptr<base::DictionaryValue>* value);
};
template <>
struct CloneTraits<std::unique_ptr<base::DictionaryValue>, false> {
static std::unique_ptr<base::DictionaryValue> Clone(
const std::unique_ptr<base::DictionaryValue>& input);
};
template <>
struct UnionTraits<common::mojom::ValueDataView, base::Value> {
static common::mojom::ValueDataView::Tag GetTag(const base::Value& data) {
switch (data.GetType()) {
case base::Value::Type::NONE:
return common::mojom::ValueDataView::Tag::NULL_VALUE;
case base::Value::Type::BOOLEAN:
return common::mojom::ValueDataView::Tag::BOOL_VALUE;
case base::Value::Type::INTEGER:
return common::mojom::ValueDataView::Tag::INT_VALUE;
case base::Value::Type::DOUBLE:
return common::mojom::ValueDataView::Tag::DOUBLE_VALUE;
case base::Value::Type::STRING:
return common::mojom::ValueDataView::Tag::STRING_VALUE;
case base::Value::Type::BINARY:
return common::mojom::ValueDataView::Tag::BINARY_VALUE;
case base::Value::Type::DICTIONARY:
return common::mojom::ValueDataView::Tag::DICTIONARY_VALUE;
case base::Value::Type::LIST:
return common::mojom::ValueDataView::Tag::LIST_VALUE;
}
NOTREACHED();
return common::mojom::ValueDataView::Tag::NULL_VALUE;
}
static common::mojom::NullValuePtr null_value(const base::Value& value) {
return common::mojom::NullValuePtr();
}
static bool bool_value(const base::Value& value) {
bool bool_value{};
if (!value.GetAsBoolean(&bool_value))
NOTREACHED();
return bool_value;
}
static int32_t int_value(const base::Value& value) {
int int_value{};
if (!value.GetAsInteger(&int_value))
NOTREACHED();
return int_value;
}
static double double_value(const base::Value& value) {
double double_value{};
if (!value.GetAsDouble(&double_value))
NOTREACHED();
return double_value;
}
static base::StringPiece string_value(const base::Value& value) {
base::StringPiece string_piece;
if (!value.GetAsString(&string_piece))
NOTREACHED();
return string_piece;
}
static mojo::ConstCArray<uint8_t> binary_value(const base::Value& value) {
const base::BinaryValue* binary_value = nullptr;
if (!value.GetAsBinary(&binary_value))
NOTREACHED();
return mojo::ConstCArray<uint8_t>(
binary_value->GetSize(),
reinterpret_cast<const uint8_t*>(binary_value->GetBuffer()));
}
static const base::ListValue& list_value(const base::Value& value) {
const base::ListValue* list_value = nullptr;
if (!value.GetAsList(&list_value))
NOTREACHED();
return *list_value;
}
static const base::DictionaryValue& dictionary_value(
const base::Value& value) {
const base::DictionaryValue* dictionary_value = nullptr;
if (!value.GetAsDictionary(&dictionary_value))
NOTREACHED();
return *dictionary_value;
}
};
template <>
struct UnionTraits<common::mojom::ValueDataView, std::unique_ptr<base::Value>> {
static bool IsNull(const std::unique_ptr<base::Value>& value) {
return !value;
}
static void SetToNull(std::unique_ptr<base::Value>* value) { value->reset(); }
static common::mojom::ValueDataView::Tag GetTag(
const std::unique_ptr<base::Value>& value) {
return UnionTraits<common::mojom::ValueDataView, base::Value>::GetTag(
*value);
}
static common::mojom::NullValuePtr null_value(
const std::unique_ptr<base::Value>& value) {
return UnionTraits<common::mojom::ValueDataView, base::Value>::null_value(
*value);
}
static bool bool_value(const std::unique_ptr<base::Value>& value) {
return UnionTraits<common::mojom::ValueDataView, base::Value>::bool_value(
*value);
}
static int32_t int_value(const std::unique_ptr<base::Value>& value) {
return UnionTraits<common::mojom::ValueDataView, base::Value>::int_value(
*value);
}
static double double_value(const std::unique_ptr<base::Value>& value) {
return UnionTraits<common::mojom::ValueDataView, base::Value>::double_value(
*value);
}
static base::StringPiece string_value(
const std::unique_ptr<base::Value>& value) {
return UnionTraits<common::mojom::ValueDataView, base::Value>::string_value(
*value);
}
static mojo::ConstCArray<uint8_t> binary_value(
const std::unique_ptr<base::Value>& value) {
return UnionTraits<common::mojom::ValueDataView, base::Value>::binary_value(
*value);
}
static const base::ListValue& list_value(
const std::unique_ptr<base::Value>& value) {
return UnionTraits<common::mojom::ValueDataView, base::Value>::list_value(
*value);
}
static const base::DictionaryValue& dictionary_value(
const std::unique_ptr<base::Value>& value) {
return UnionTraits<common::mojom::ValueDataView,
base::Value>::dictionary_value(*value);
}
static bool Read(common::mojom::ValueDataView data,
std::unique_ptr<base::Value>* value);
};
} // namespace mojo
#endif // MOJO_COMMON_VALUES_STRUCT_TRAITS_H_
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