private ComponentEntrypoint(bool is_singleton, Type instance_type, ExpressionFactory.Call method, ExpressionFactory.GetProperty <object> task_result_prop, Type[] imports, Type[] exports, TwConstraint[] constraints, FieldInfo[] tuple_fields, TwEntrypointPriorityEnum priority, bool is_async)
{
_isSingleton = is_singleton;
_method = method;
_taskResultPoperty = task_result_prop;
_tupleFields = tuple_fields;
InstanceType = instance_type;
Priority = priority;
IsAsync = is_async;
var(export, exportIsOptions) = ExpressionFactory.GetExpandedTypes(exports);
_export = export;
_exportIsOption = exportIsOptions;
var(import, importIsOptions) = ExpressionFactory.GetExpandedTypes(imports);
_import = import;
_importIsOption = importIsOptions;
_constraints = constraints;
}
public static ComponentEntrypoint Create(MethodInfo method, TwEntrypointPriorityEnum priority)
{
var type = method.DeclaringType;
var param = method.GetParameters();
var export = method.ReturnType == typeof(void) ? null : method.ReturnType;
var isAsync = export != null && (export == typeof(Task) || export.IsSubclassOf(typeof(Task)));
export = isAsync ? export.IsGenericType ? export.GenericTypeArguments.Single() : null : export;
var imports = param.Select(p => p.ParameterType).ToArray();
var isMultipleRet = export?.IsGenericType ?? false?_valueTupleTypes.Contains(export.GetGenericTypeDefinition()) : false;
var exports = isMultipleRet ? export.GenericTypeArguments : export != null ? new[] { export } : Array.Empty <Type>();
var getTaskResultProperty = isAsync && export != null?ExpressionFactory.GetPropertyExecutor <object>(typeof(Task <>).MakeGenericType(method.ReturnType.GenericTypeArguments.Single()).GetProperty("Result")) : null;
var tupleFields = isMultipleRet ? export.GetFields() : null;
var callMethod = ExpressionFactory.GetMethodExecutor(method);
var constraints = GetConstraints(method, type);
return(new ComponentEntrypoint(method.IsStatic, type, callMethod, getTaskResultProperty, imports, exports, constraints, tupleFields, priority, isAsync));
}
public TwEntrypointAttribute(TwEntrypointPriorityEnum priority = TwEntrypointPriorityEnum.Medium)
{
Priority = priority;
}