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using System;
using ProtoBuf.Meta;
namespace ProtoBuf.Serializers
{
internal sealed class DefaultValueDecorator : ProtoDecoratorBase
{
public override Type ExpectedType
{
get
{
return this.Tail.ExpectedType;
}
}
public override bool RequiresOldValue
{
get
{
return this.Tail.RequiresOldValue;
}
}
public override bool ReturnsValue
{
get
{
return this.Tail.ReturnsValue;
}
}
private readonly object defaultValue;
public DefaultValueDecorator(TypeModel model, object defaultValue, IProtoSerializer tail) : base(tail)
{
bool flag = defaultValue == null;
if (flag)
{
throw new ArgumentNullException("defaultValue");
}
Type type = model.MapType(defaultValue.GetType());
bool flag2 = type != tail.ExpectedType;
if (flag2)
{
throw new ArgumentException("Default value is of incorrect type", "defaultValue");
}
this.defaultValue = defaultValue;
}
public override void Write(object value, ProtoWriter dest)
{
bool flag = !object.Equals(value, this.defaultValue);
if (flag)
{
this.Tail.Write(value, dest);
}
}
public override object Read(object value, ProtoReader source)
{
return this.Tail.Read(value, source);
}
}
}
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