private bool TryGetScalarType(
Type type,
[MaybeNullWhen(false)] out IType primitiveType
)
{
var isNullable = false;
var underlyingType = Nullable.GetUnderlyingType(type);
if (underlyingType is object)
{
isNullable = true;
}
else
{
underlyingType = type;
}
if (GraphQLTypeHelpers.TryGetBuiltInScalarType(underlyingType, out var scalarType))
{
primitiveType = isNullable
? (IType)scalarType
: new NonNullType(scalarType);
return(true);
}
else
{
primitiveType = null;
return(false);
}
}
public IEnumerable <IType> GenerateTypeDescriptors <T>() where T : class
{
var rootType = typeof(T);
var graphQLType = GraphQLTypeHelpers.GetGraphQLType(
rootType,
out _
);
IType graphQLRootType;
var rootTypeName = namingConventions.GetTypeName(rootType);
var flags = BindingFlags.Public | BindingFlags.Instance;
var members = Enumerable.Concat <MemberInfo>(
rootType.GetFields(flags),
rootType.GetProperties(flags)
);
switch (graphQLType)
{
case TypeKind.Object:
//var ctor = typeof(ObjectType<>)
// .MakeGenericType(rootType)
// .GetConstructor(new Type[] { typeof(Action<>).MakeGenericType(IObjectTypeDescriptor<>) })
// ?? throw new Exception();
graphQLRootType = new ObjectType(
desc =>
{
desc.Name(rootTypeName);
foreach (var member in members)
{
}
}
);
break;
case TypeKind.Interface:
graphQLRootType = new InterfaceType(
desc => desc.Name(rootTypeName)
);
break;
default:
throw new NotImplementedException();
}
throw new NotImplementedException();
}
private IType MockITypeGenerator(Type type, out bool isCompleted)
{
if (GraphQLTypeHelpers.IsBuiltInScalarType(type))
{
throw new Exception();
}
isCompleted = false;
IType result;
var graphQLTypeKind = GraphQLTypeHelpers.GetGraphQLType(
type,
out var isNullable
);
var typeName = namingConventions.GetTypeName(type);
switch (graphQLTypeKind)
{
case TypeKind.Object:
result = new ObjectType(
desc => desc.Name(typeName)
);
break;
case TypeKind.Interface:
result = new InterfaceType(
desc => desc.Name(typeName)
);
break;
case TypeKind.Enum:
result = typeof(EnumType <>)
.MakeGenericType(type)
.GetConstructor(Array.Empty <Type>())
?.Invoke(Array.Empty <object>()) as EnumType
?? throw new Exception();
isCompleted = true;
break;
case TypeKind.List:
var memberType = GraphQLTypeHelpers.GetListMemberType(type);
if (!typeRegistrar.TryGetValue(memberType, out var memberIType))
{
throw new Exception();
}
result = new ListType(memberIType);
break;
default:
throw new NotImplementedException();
}
return(result);
}
