public override object Read(object value, ProtoReader source)
{
Helpers.DebugAssert(value != null);
object oldVal = Tail.RequiresOldValue
? _accessors.Get != null?_accessors.Get(value) : Helpers.GetPropertyValue(_property, value)
: null;
object newVal = Tail.Read(oldVal, source);
if (_canSetInRuntime &&
(!Tail.RequiresOldValue // always set where can't check oldVal
// and if it's value type or nullable with changed null/not null or ref
|| (Helpers.IsValueType(_property.PropertyType) && oldVal != null && newVal != null) ||
!ReferenceEquals(oldVal, newVal)
))
{
if (_accessors.Set != null)
{
_accessors.Set(value, newVal);
}
else
{
if (_shadowSetter == null)
{
_property.SetValue(value, newVal, null);
}
else
{
_shadowSetter.Invoke(value, new object[] { newVal });
}
}
}
return(value);
}
object GetValue(object instance)
{
return(_accessors.Get != null?_accessors.Get(instance) : _field.GetValue(instance));
}