public static JsiiClassAttribute GetClassAttribute(Type type)
{
Type current = type;
while (current != null)
{
// JsiiClassAttribute can't be inheritable, because we need to distinguish between JSII
// types and native extensions of JSII types. So we have to search the inheritance tree
// manually.
JsiiClassAttribute classAttribute = current.GetCustomAttribute <JsiiClassAttribute>();
if (classAttribute != null)
{
return(classAttribute);
}
current = current.BaseType;
}
return(null);
}
TypeReference InferType(IReferenceMap referenceMap, Type type)
{
type = type ?? throw new ArgumentNullException(nameof(type));
JsiiClassAttribute classAttribute = ReflectionUtils.GetClassAttribute(type);
if (classAttribute != null)
{
return(new TypeReference(classAttribute.FullyQualifiedName));
}
JsiiEnumAttribute enumAttribute = type.GetCustomAttribute <JsiiEnumAttribute>();
if (enumAttribute != null)
{
return(new TypeReference(enumAttribute.FullyQualifiedName));
}
if (type.IsAssignableFrom(typeof(string)))
{
return(new TypeReference(primitive: PrimitiveType.String));
}
if (type.IsAssignableFrom(typeof(bool)))
{
return(new TypeReference(primitive: PrimitiveType.Boolean));
}
if (IsNumeric(type))
{
return(new TypeReference(primitive: PrimitiveType.Number));
}
if (type.IsAssignableFrom(typeof(DateTime)))
{
return(new TypeReference(primitive: PrimitiveType.Date));
}
if (type.IsAssignableFrom(typeof(JObject)))
{
return(new TypeReference(primitive: PrimitiveType.Json));
}
if (type.IsArray)
{
return(new TypeReference
(
collection: new CollectionTypeReference
(
kind: CollectionKind.Array,
elementType: InferType(referenceMap, type.GetElementType())
)
));
}
Type dictionaryInterface = type.GetInterfaces()
.FirstOrDefault(i => i.IsGenericType && i.GetGenericTypeDefinition() == typeof(IDictionary <,>));
if (dictionaryInterface != null)
{
if (!dictionaryInterface.GetGenericArguments()[0].IsAssignableFrom(typeof(string)))
{
throw new ArgumentException("All dictionaries must have string keys", nameof(type));
}
Type elementType = dictionaryInterface.GetGenericArguments()[1];
return(new TypeReference
(
collection: new CollectionTypeReference
(
kind: CollectionKind.Map,
elementType: InferType(referenceMap, elementType)
)
));
}
throw new ArgumentException($"Could not infer JSII type for .NET type '{type.Name}'", nameof(type));
}