public VisitStatus Visit <TContainer, TValue>(Property <TContainer, TValue> property, ref TContainer container,
ref TValue value)
{
if (!RuntimeTypeInfoCache <TValue> .CanBeNull || null != value)
{
return(VisitStatus.Unhandled);
}
if (typeof(UnityEngine.Object).IsAssignableFrom(typeof(TValue)))
{
return(VisitStatus.Unhandled);
}
if (!property.IsReadOnly && property.HasAttribute <CreateInstanceOnInspectionAttribute>() && !(property is ICollectionElementProperty))
{
var attribute = property.GetAttribute <CreateInstanceOnInspectionAttribute>();
if (null == attribute.Type)
{
if (TypeConstruction.CanBeConstructed <TValue>())
{
value = TypeConstruction.Construct <TValue>();
property.SetValue(ref container, value);
return(VisitStatus.Unhandled);
}
Debug.LogWarning(PropertyChecks.GetNotConstructableWarningMessage(typeof(TValue)));
}
else
{
var isAssignable = typeof(TValue).IsAssignableFrom(attribute.Type);
var isConstructable = TypeConstruction.GetAllConstructableTypes(typeof(TValue))
.Contains(attribute.Type);
if (isAssignable && isConstructable)
{
value = TypeConstruction.Construct <TValue>(attribute.Type);
property.SetValue(ref container, value);
return(VisitStatus.Unhandled);
}
Debug.LogWarning(isAssignable
? PropertyChecks.GetNotConstructableWarningMessage(attribute.Type)
: PropertyChecks.GetNotAssignableWarningMessage(attribute.Type, typeof(TValue)));
}
}
Visitor.AddToPath(property);
try
{
var path = Visitor.GetCurrentPath();
var element = new NullElement <TValue>(VisitorContext.Root, property, path);
VisitorContext.Parent.contentContainer.Add(element);
}
finally
{
Visitor.RemoveFromPath(property);
}
return(VisitStatus.Stop);
}
static bool ShouldStayNull <TContainer, TValue>(
Property <TContainer, TValue> property,
ref TContainer container,
ref TValue value)
{
if (property.IsReadOnly || !property.HasAttribute <CreateInstanceOnInspectionAttribute>() ||
property is ICollectionElementProperty)
{
return(true);
}
var attribute = property.GetAttribute <CreateInstanceOnInspectionAttribute>();
if (null == attribute.Type)
{
if (TypeConstruction.CanBeConstructed <TValue>())
{
value = TypeConstruction.Construct <TValue>();
property.SetValue(ref container, value);
return(false);
}
Debug.LogWarning(PropertyChecks.GetNotConstructableWarningMessage(typeof(TValue)));
}
else
{
var isAssignable = typeof(TValue).IsAssignableFrom(attribute.Type);
var isConstructable = TypeUtility.GetAllConstructableTypes(typeof(TValue))
.Contains(attribute.Type);
if (isAssignable && isConstructable)
{
value = TypeConstruction.Construct <TValue>(attribute.Type);
property.SetValue(ref container, value);
return(false);
}
Debug.LogWarning(isAssignable
? PropertyChecks.GetNotConstructableWarningMessage(attribute.Type)
: PropertyChecks.GetNotAssignableWarningMessage(attribute.Type, typeof(TValue)));
}
return(true);
}
