private static void reflectionAppend(object obj, IReflect type, HashCodeBuilder builder, bool useTransients, IEnumerable <string> excludedFields)
{
if (REGISTRY.Value.Contains(new IDKey(obj)))
{
return;
}
try
{
REGISTRY.Value.Add(new IDKey(obj));
var values = type
.GetFields(BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic)
.Where(field => excludedFields == null || !excludedFields.Contains(field.Name))
.Where(field => useTransients || !field.IsNotSerialized)
.Select(field => field.GetValue(obj));
foreach (var value in values)
{
builder.append(value);
}
}
finally
{
REGISTRY.Value.Remove(new IDKey(obj));
}
}
public static int reflectionHashCode(object obj, bool useTransients, IEnumerable <string> excludedFields)
{
if (obj == null)
{
throw new ArgumentNullException("obj", "The object to build a hash code for must not be null");
}
var builder = new HashCodeBuilder(17, 37);
for (var type = obj.GetType(); type != null && type != typeof(object); type = type.BaseType)
{
reflectionAppend(obj, type, builder, useTransients, excludedFields);
}
return(builder.toHashCode());
}