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using System;
using System.Reflection;
using ProtoBuf.Meta;
namespace ProtoBuf.Serializers
{
internal sealed class TupleSerializer : IProtoTypeSerializer, IProtoSerializer
{
public Type ExpectedType
{
get
{
return this.ctor.DeclaringType;
}
}
public bool RequiresOldValue
{
get
{
return true;
}
}
public bool ReturnsValue
{
get
{
return false;
}
}
private readonly MemberInfo[] members;
private readonly ConstructorInfo ctor;
private IProtoSerializer[] tails;
public TupleSerializer(RuntimeTypeModel model, ConstructorInfo ctor, MemberInfo[] members)
{
bool flag = ctor == null;
if (flag)
{
throw new ArgumentNullException("ctor");
}
bool flag2 = members == null;
if (flag2)
{
throw new ArgumentNullException("members");
}
this.ctor = ctor;
this.members = members;
this.tails = new IProtoSerializer[members.Length];
ParameterInfo[] parameters = ctor.GetParameters();
for (int i = 0; i < members.Length; i++)
{
Type parameterType = parameters[i].ParameterType;
Type type = null;
Type concreteType = null;
MetaType.ResolveListTypes(model, parameterType, ref type, ref concreteType);
Type type2 = (type == null) ? parameterType : type;
bool asReference = false;
int num = model.FindOrAddAuto(type2, false, true, false);
bool flag3 = num >= 0;
if (flag3)
{
asReference = model[type2].AsReferenceDefault;
}
WireType wireType;
IProtoSerializer protoSerializer = ValueMember.TryGetCoreSerializer(model, DataFormat.Default, type2, out wireType, asReference, false, false, true);
bool flag4 = protoSerializer == null;
if (flag4)
{
throw new InvalidOperationException("No serializer defined for type: " + type2.FullName);
}
protoSerializer = new TagDecorator(i + 1, wireType, false, protoSerializer);
bool flag5 = type == null;
IProtoSerializer protoSerializer2;
if (flag5)
{
protoSerializer2 = protoSerializer;
}
else
{
bool isArray = parameterType.IsArray;
if (isArray)
{
protoSerializer2 = new ArrayDecorator(model, protoSerializer, i + 1, false, wireType, parameterType, false, false);
}
else
{
protoSerializer2 = ListDecorator.Create(model, parameterType, concreteType, protoSerializer, i + 1, false, wireType, true, false, false);
}
}
this.tails[i] = protoSerializer2;
}
}
public bool HasCallbacks(TypeModel.CallbackType callbackType)
{
return false;
}
void IProtoTypeSerializer.Callback(object value, TypeModel.CallbackType callbackType, SerializationContext context)
{
}
object IProtoTypeSerializer.CreateInstance(ProtoReader source)
{
throw new NotSupportedException();
}
private object GetValue(object obj, int index)
{
PropertyInfo propertyInfo;
bool flag = (propertyInfo = (this.members[index] as PropertyInfo)) != null;
object result;
if (flag)
{
bool flag2 = obj == null;
if (flag2)
{
result = (Helpers.IsValueType(propertyInfo.PropertyType) ? Activator.CreateInstance(propertyInfo.PropertyType) : null);
}
else
{
result = propertyInfo.GetValue(obj, null);
}
}
else
{
FieldInfo fieldInfo;
bool flag3 = (fieldInfo = (this.members[index] as FieldInfo)) != null;
if (!flag3)
{
throw new InvalidOperationException();
}
bool flag4 = obj == null;
if (flag4)
{
result = (Helpers.IsValueType(fieldInfo.FieldType) ? Activator.CreateInstance(fieldInfo.FieldType) : null);
}
else
{
result = fieldInfo.GetValue(obj);
}
}
return result;
}
public object Read(object value, ProtoReader source)
{
object[] array = new object[this.members.Length];
bool flag = false;
bool flag2 = value == null;
if (flag2)
{
flag = true;
}
for (int i = 0; i < array.Length; i++)
{
array[i] = this.GetValue(value, i);
}
int num;
while ((num = source.ReadFieldHeader()) > 0)
{
flag = true;
bool flag3 = num <= this.tails.Length;
if (flag3)
{
IProtoSerializer protoSerializer = this.tails[num - 1];
array[num - 1] = this.tails[num - 1].Read(protoSerializer.RequiresOldValue ? array[num - 1] : null, source);
}
else
{
source.SkipField();
}
}
return flag ? this.ctor.Invoke(array) : value;
}
public void Write(object value, ProtoWriter dest)
{
for (int i = 0; i < this.tails.Length; i++)
{
object value2 = this.GetValue(value, i);
bool flag = value2 != null;
if (flag)
{
this.tails[i].Write(value2, dest);
}
}
}
private Type GetMemberType(int index)
{
Type memberType = Helpers.GetMemberType(this.members[index]);
bool flag = memberType == null;
if (flag)
{
throw new InvalidOperationException();
}
return memberType;
}
bool IProtoTypeSerializer.CanCreateInstance()
{
return false;
}
}
}
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