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469 lines (376 loc) · 7.74 KB
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// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT License.
#include <graphqlservice/GraphQLResponse.h>
#include <stdexcept>
namespace facebook {
namespace graphql {
namespace response {
Value::Value(Type type /*= Type::Null*/)
: _type(type)
{
switch (type)
{
case Type::Map:
_members.reset(new std::unordered_map<std::string, size_t>());
_map.reset(new MapType());
break;
case Type::List:
_list.reset(new ListType());
break;
case Type::String:
case Type::EnumValue:
_string.reset(new StringType());
break;
case Type::Boolean:
_boolean = false;
break;
case Type::Int:
_int = 0;
break;
case Type::Float:
_float = 0;
break;
case Type::Scalar:
_scalar.reset(new Value());
break;
default:
break;
}
}
Value::Value(StringType&& value)
: _type(Type::String)
, _string(new StringType(std::move(value)))
{
}
Value::Value(BooleanType value)
: _type(Type::Boolean)
, _boolean(value)
{
}
Value::Value(IntType value)
: _type(Type::Int)
, _int(value)
{
}
Value::Value(FloatType value)
: _type(Type::Float)
, _float(value)
{
}
Value::Value(Value&& other)
: _type(other._type)
, _members(std::move(other._members))
, _map(std::move(other._map))
, _list(std::move(other._list))
, _string(std::move(other._string))
, _scalar(std::move(other._scalar))
{
switch (_type)
{
case Type::Boolean:
_boolean = other._boolean;
break;
case Type::Int:
_int = other._int;
break;
case Type::Float:
_float = other._float;
break;
default:
break;
}
}
Value::Value(const Value& other)
: _type(other._type)
{
switch (_type)
{
case Type::Map:
_members.reset(new std::unordered_map<std::string, size_t>(*other._members));
_map.reset(new MapType(*other._map));
break;
case Type::List:
_list.reset(new ListType(*other._list));
break;
case Type::String:
case Type::EnumValue:
_string.reset(new StringType(*other._string));
break;
case Type::Boolean:
_boolean = other._boolean;
break;
case Type::Int:
_int = other._int;
break;
case Type::Float:
_float = other._float;
break;
case Type::Scalar:
_scalar.reset(new Value(*other._scalar));
break;
default:
break;
}
}
Value& Value::operator=(Value&& rhs)
{
const_cast<Type&>(_type) = rhs._type;
const_cast<Type&>(rhs._type) = Type::Null;
_members = std::move(rhs._members);
_map = std::move(rhs._map);
_list = std::move(rhs._list);
_string = std::move(rhs._string);
_scalar = std::move(rhs._scalar);
switch (_type)
{
case Type::Boolean:
_boolean = rhs._boolean;
break;
case Type::Int:
_int = rhs._int;
break;
case Type::Float:
_float = rhs._float;
break;
default:
break;
}
return *this;
}
Type Value::type() const
{
return _type;
}
void Value::reserve(size_t count)
{
switch (_type)
{
case Type::Map:
_members->reserve(count);
_map->reserve(count);
break;
case Type::List:
_list->reserve(count);
break;
default:
throw std::logic_error("Invalid call to Value::reserve");
}
}
size_t Value::size() const
{
switch (_type)
{
case Type::Map:
return _map->size();
case Type::List:
return _list->size();
default:
throw std::logic_error("Invalid call to Value::size");
}
}
void Value::emplace_back(std::string&& name, Value&& value)
{
if (_type != Type::Map)
{
throw std::logic_error("Invalid call to Value::emplace_back for MapType");
}
if (_members->find(name) != _members->cend())
{
throw std::runtime_error("Duplicate Map member");
}
_members->insert({ name, _map->size() });
_map->emplace_back(std::make_pair(std::move(name), std::move(value)));
}
MapType::const_iterator Value::find(const std::string& name) const
{
if (_type != Type::Map)
{
throw std::logic_error("Invalid call to Value::find for MapType");
}
const auto itr = _members->find(name);
if (itr == _members->cend())
{
return _map->cend();
}
return _map->cbegin() + itr->second;
}
const Value& Value::operator[](const std::string& name) const
{
const auto itr = find(name);
if (itr == _map->cend())
{
throw std::runtime_error("Missing Map member");
}
return itr->second;
}
void Value::emplace_back(Value&& value)
{
if (_type != Type::List)
{
throw std::logic_error("Invalid call to Value::emplace_back for ListType");
}
_list->emplace_back(std::move(value));
}
const Value& Value::operator[](size_t index) const
{
if (_type != Type::List)
{
throw std::logic_error("Invalid call to Value::emplace_back for ListType");
}
return _list->at(index);
}
template <>
void Value::set<StringType>(StringType&& value)
{
if (_type != Type::String
&& _type != Type::EnumValue)
{
throw std::logic_error("Invalid call to Value::set for StringType");
}
*_string = std::move(value);
}
template <>
void Value::set<BooleanType>(BooleanType&& value)
{
if (_type != Type::Boolean)
{
throw std::logic_error("Invalid call to Value::set for BooleanType");
}
_boolean = value;
}
template <>
void Value::set<IntType>(IntType&& value)
{
if (_type != Type::Int)
{
throw std::logic_error("Invalid call to Value::set for IntType");
}
_int = value;
}
template <>
void Value::set<FloatType>(FloatType&& value)
{
if (_type != Type::Float)
{
throw std::logic_error("Invalid call to Value::set for FloatType");
}
_float = value;
}
template <>
void Value::set<ScalarType>(ScalarType&& value)
{
if (_type != Type::Scalar)
{
throw std::logic_error("Invalid call to Value::set for ScalarType");
}
*_scalar = std::move(value);
}
template <>
const MapType& Value::get<const MapType&>() const
{
if (_type != Type::Map)
{
throw std::logic_error("Invalid call to Value::get for MapType");
}
return *_map;
}
template <>
const ListType& Value::get<const ListType&>() const
{
if (_type != Type::List)
{
throw std::logic_error("Invalid call to Value::get for ListType");
}
return *_list;
}
template <>
const StringType& Value::get<const StringType&>() const
{
if (_type != Type::String
&& _type != Type::EnumValue)
{
throw std::logic_error("Invalid call to Value::get for StringType");
}
return *_string;
}
template <>
BooleanType Value::get<BooleanType>() const
{
if (_type != Type::Boolean)
{
throw std::logic_error("Invalid call to Value::get for BooleanType");
}
return _boolean;
}
template <>
IntType Value::get<IntType>() const
{
if (_type != Type::Int)
{
throw std::logic_error("Invalid call to Value::get for IntType");
}
return _int;
}
template <>
FloatType Value::get<FloatType>() const
{
if (_type != Type::Float)
{
throw std::logic_error("Invalid call to Value::get for FloatType");
}
return _float;
}
template <>
const ScalarType& Value::get<const ScalarType&>() const
{
if (_type != Type::Scalar)
{
throw std::logic_error("Invalid call to Value::get for ScalarType");
}
return *_scalar;
}
template <>
MapType Value::release<MapType>()
{
if (_type != Type::Map)
{
throw std::logic_error("Invalid call to Value::release for MapType");
}
MapType result = std::move(*_map);
_members->clear();
return result;
}
template <>
ListType Value::release<ListType>()
{
if (_type != Type::List)
{
throw std::logic_error("Invalid call to Value::release for ListType");
}
ListType result = std::move(*_list);
return result;
}
template <>
StringType Value::release<StringType>()
{
if (_type != Type::String
&& _type != Type::EnumValue)
{
throw std::logic_error("Invalid call to Value::release for StringType");
}
StringType result = std::move(*_string);
return result;
}
template <>
ScalarType Value::release<ScalarType>()
{
if (_type != Type::Scalar)
{
throw std::logic_error("Invalid call to Value::release for ScalarType");
}
ScalarType result = std::move(*_scalar);
return result;
}
} /* namespace response */
} /* namespace graphql */
} /* namespace facebook */