static KeyframeFormatter()
{
Is_In_2018_1_Or_Above = typeof(Keyframe).GetProperty("weightedMode") != null;
if (Is_In_2018_1_Or_Above)
{
if (EmitUtilities.CanEmit)
{
Formatter = (IFormatter <Keyframe>)FormatterEmitter.GetEmittedFormatter(typeof(Keyframe), SerializationPolicies.Everything);
}
else
{
Formatter = new ReflectionFormatter <Keyframe>(SerializationPolicies.Everything);
}
}
}
private static IFormatter CreateFormatter(Type type, ISerializationPolicy policy)
{
if (FormatterUtilities.IsPrimitiveType(type))
{
throw new ArgumentException("Cannot create formatters for a primitive type like " + type.Name);
}
// First call formatter locators before checking for registered formatters
for (int i = 0; i < FormatterLocators.Count; i++)
{
try
{
IFormatter result;
if (FormatterLocators[i].LocatorInstance.TryGetFormatter(type, FormatterLocationStep.BeforeRegisteredFormatters, policy, out result))
{
return(result);
}
}
catch (TargetInvocationException ex)
{
throw ex;
}
catch (TypeInitializationException ex)
{
throw ex;
}
#pragma warning disable CS0618 // Type or member is obsolete
catch (ExecutionEngineException ex)
#pragma warning restore CS0618 // Type or member is obsolete
{
throw ex;
}
catch (Exception ex)
{
Debug.LogException(new Exception("Exception was thrown while calling FormatterLocator " + FormatterLocators[i].GetType().FullName + ".", ex));
}
}
// Then check for valid registered formatters
for (int i = 0; i < FormatterInfos.Count; i++)
{
var info = FormatterInfos[i];
Type formatterType = null;
if (type == info.TargetType)
{
formatterType = info.FormatterType;
}
else if (info.FormatterType.IsGenericType && info.TargetType.IsGenericParameter)
{
Type[] inferredArgs;
if (info.FormatterType.TryInferGenericParameters(out inferredArgs, type))
{
formatterType = info.FormatterType.GetGenericTypeDefinition().MakeGenericType(inferredArgs);
}
}
else if (type.IsGenericType && info.FormatterType.IsGenericType && info.TargetType.IsGenericType && type.GetGenericTypeDefinition() == info.TargetType.GetGenericTypeDefinition())
{
Type[] args = type.GetGenericArguments();
if (info.FormatterType.AreGenericConstraintsSatisfiedBy(args))
{
formatterType = info.FormatterType.GetGenericTypeDefinition().MakeGenericType(args);
}
}
if (formatterType != null)
{
var instance = GetFormatterInstance(formatterType);
if (instance == null)
{
continue;
}
if (info.AskIfCanFormatTypes && !((IAskIfCanFormatTypes)instance).CanFormatType(type))
{
continue;
}
return(instance);
}
}
// Then call formatter locators after checking for registered formatters
for (int i = 0; i < FormatterLocators.Count; i++)
{
try
{
IFormatter result;
if (FormatterLocators[i].LocatorInstance.TryGetFormatter(type, FormatterLocationStep.AfterRegisteredFormatters, policy, out result))
{
return(result);
}
}
catch (TargetInvocationException ex)
{
throw ex;
}
catch (TypeInitializationException ex)
{
throw ex;
}
#pragma warning disable CS0618 // Type or member is obsolete
catch (ExecutionEngineException ex)
#pragma warning restore CS0618 // Type or member is obsolete
{
throw ex;
}
catch (Exception ex)
{
Debug.LogException(new Exception("Exception was thrown while calling FormatterLocator " + FormatterLocators[i].GetType().FullName + ".", ex));
}
}
// If we can, emit a formatter to handle serialization of this object
{
if (EmitUtilities.CanEmit)
{
var result = FormatterEmitter.GetEmittedFormatter(type, policy);
if (result != null)
{
return(result);
}
}
}
if (EmitUtilities.CanEmit)
{
Debug.LogWarning("Fallback to reflection for type " + type.Name + " when emit is possible on this platform.");
}
// Finally, we fall back to a reflection-based formatter if nothing else has been found
return((IFormatter)Activator.CreateInstance(typeof(ReflectionFormatter <>).MakeGenericType(type)));
}
private static IFormatter CreateFormatter(Type type, ISerializationPolicy policy)
{
if (FormatterUtilities.IsPrimitiveType(type))
{
throw new ArgumentException("Cannot create formatters for a primitive type like " + type.Name);
}
bool canSelfFormat = type.ImplementsOrInherits(typeof(ISelfFormatter));
// If the type should always self format, there is no need to explore further.
// Otherwise, we go through the below checks first to see whether a custom
// formatter is defined.
if (canSelfFormat && type.IsDefined <AlwaysFormatsSelfAttribute>())
{
return((IFormatter)Activator.CreateInstance(typeof(SelfFormatterFormatter <>).MakeGenericType(type)));
}
// First, allow the FormatterResolve event to resolve the formatter if possible
// We always hold the lock in the CreateFormatter method, so we can safely
// invoke the event without worrying about other threads changing it.
if (FormatterResolvePrivate != null)
{
Type genericInterface = typeof(IFormatter <>).MakeGenericType(type);
foreach (var del in FormatterResolvePrivate.GetInvocationList())
{
IFormatter result = del.Method.Invoke(del.Target, new object[] { type }) as IFormatter;
if (result != null && result.GetType().ImplementsOrInherits(genericInterface))
{
return(result);
}
}
}
// Then try to find a custom formatter
{
Type formatterType;
if (CustomFormatterTypes.TryGetValue(type, out formatterType))
{
return((IFormatter)Activator.CreateInstance(formatterType));
}
}
if (type.IsGenericType)
{
// Then try to find a custom generic formatter.
// IE, if we're trying to serialize Dictionary<string, int>, we might have a formatter that declares it can handle
// Dictionary<TKey, TValue>. If so, we can use that.
Type genericTypeDefinition = type.GetGenericTypeDefinition();
Type formatterGenericTypeDefinition;
if (CustomGenericFormatterTypes.TryGetValue(genericTypeDefinition, out formatterGenericTypeDefinition))
{
var formatterType = formatterGenericTypeDefinition.MakeGenericType(type.GetGenericArguments());
return((IFormatter)Activator.CreateInstance(formatterType));
}
}
// Quick hack to support types derived from dictionary
if (type.ImplementsOpenGenericClass(typeof(Dictionary <,>)) && type.GetConstructor(Type.EmptyTypes) != null)
{
var dictArgs = type.GetArgumentsOfInheritedOpenGenericClass(typeof(Dictionary <,>));
var formatterType = typeof(DerivedDictionaryFormatter <, ,>).MakeGenericType(type, dictArgs[0], dictArgs[1]);
return((IFormatter)Activator.CreateInstance(formatterType));
}
// If there were no custom formatters found, the type can format itself
if (canSelfFormat)
{
return((IFormatter)Activator.CreateInstance(typeof(SelfFormatterFormatter <>).MakeGenericType(type)));
}
// Delegates get special behaviour, as they're weird
if (typeof(Delegate).IsAssignableFrom(type))
{
return((IFormatter)Activator.CreateInstance(typeof(DelegateFormatter <>).MakeGenericType(type)));
}
// Types get special behaviour, as they are often instances of special runtime types like System.MonoType which cannot be addressed at compile time.
if (typeof(Type).IsAssignableFrom(type))
{
return(new TypeFormatter());
}
if (type.IsArray)
{
// Custom behaviour for all arrays that don't have specific custom formatters
if (type.GetArrayRank() == 1)
{
if (FormatterUtilities.IsPrimitiveArrayType(type.GetElementType()))
{
return((IFormatter)Activator.CreateInstance(typeof(PrimitiveArrayFormatter <>).MakeGenericType(type.GetElementType())));
}
else
{
return((IFormatter)Activator.CreateInstance(typeof(ArrayFormatter <>).MakeGenericType(type.GetElementType())));
}
}
else
{
return((IFormatter)Activator.CreateInstance(typeof(MultiDimensionalArrayFormatter <,>).MakeGenericType(type, type.GetElementType())));
}
}
// If the type implements ISerializable, use the SerializableFormatter
if (type.ImplementsOrInherits(typeof(ISerializable)))
{
return((IFormatter)Activator.CreateInstance(typeof(SerializableFormatter <>).MakeGenericType(type)));
}
// If the type can be treated as a generic collection, do that
{
Type elementType;
if (GenericCollectionFormatter.CanFormat(type, out elementType))
{
return((IFormatter)Activator.CreateInstance(typeof(GenericCollectionFormatter <,>).MakeGenericType(type, elementType)));
}
}
// If we can, emit a formatter to handle serialization of this object
{
if (EmitUtilities.CanEmit)
{
return(FormatterEmitter.GetEmittedFormatter(type, policy));
}
}
if (EmitUtilities.CanEmit)
{
Debug.LogWarning("Fallback to reflection for type " + type.Name + " when emit is possible on this platform.");
}
// Finally, we fall back to a reflection-based formatter if nothing else has been found
return((IFormatter)Activator.CreateInstance(typeof(ReflectionFormatter <>).MakeGenericType(type)));
}