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using System;
using System.Reflection;
namespace ProtoBuf.Serializers
{
internal sealed class FieldDecorator : ProtoDecoratorBase
{
public override Type ExpectedType
{
get
{
return this.forType;
}
}
public override bool RequiresOldValue
{
get
{
return true;
}
}
public override bool ReturnsValue
{
get
{
return false;
}
}
private readonly FieldInfo field;
private readonly Type forType;
public FieldDecorator(Type forType, FieldInfo field, IProtoSerializer tail) : base(tail)
{
Helpers.DebugAssert(forType != null);
Helpers.DebugAssert(field != null);
this.forType = forType;
this.field = field;
}
public override void Write(object value, ProtoWriter dest)
{
Helpers.DebugAssert(value != null);
value = this.field.GetValue(value);
bool flag = value != null;
if (flag)
{
this.Tail.Write(value, dest);
}
}
public override object Read(object value, ProtoReader source)
{
Helpers.DebugAssert(value != null);
object obj = this.Tail.Read(this.Tail.RequiresOldValue ? this.field.GetValue(value) : null, source);
bool flag = obj != null;
if (flag)
{
this.field.SetValue(value, obj);
}
return null;
}
}
}
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