public static bool TryGetFunctionKind(MethodDeclarationSyntax method, out DurableFunctionKind kind)
{
var parameters = method.ParameterList.Parameters;
foreach (var parameterSyntax in parameters)
{
var parameterAttributes = parameterSyntax.AttributeLists.SelectMany(a => a.Attributes);
foreach (var attribute in parameterAttributes)
{
if (attribute.ToString().Equals("OrchestrationTrigger"))
{
kind = DurableFunctionKind.Orchestration;
return(true);
}
if (attribute.ToString().Equals("ActivityTrigger"))
{
kind = DurableFunctionKind.Activity;
return(true);
}
}
}
kind = DurableFunctionKind.Unknonwn;
return(false);
}
public DurableFunction(string fullTypeName, string name, DurableFunctionKind kind, List <TypedParameter> parameters, TypeSyntax returnTypeSyntax, HashSet <string> requiredNamespaces)
{
FullTypeName = fullTypeName;
RequiredNamespaces = requiredNamespaces;
Name = name;
Kind = kind;
Parameters = parameters;
if (returnTypeSyntax is GenericNameSyntax genericReturnTypeSyntax)
{
var identifier = genericReturnTypeSyntax.Identifier;
var typeArgumentList = genericReturnTypeSyntax.TypeArgumentList;
ReturnType = genericReturnTypeSyntax.ToString();
CallGenerics = $"<{typeArgumentList.Arguments.First()}>";
}
else if (returnTypeSyntax is IdentifierNameSyntax identifierNameSyntax)
{
var identifier = identifierNameSyntax;
var isVoidReturn = ReturnType == "Task";
ReturnType = isVoidReturn ? "Task" : $"Task<{identifier}>";
CallGenerics = isVoidReturn ? string.Empty : $"<{identifier.ToFullString()}>";
}
else if (returnTypeSyntax is PredefinedTypeSyntax predefinedTypeSyntax)
{
ReturnType = $"Task<{predefinedTypeSyntax}>";
CallGenerics = $"<{predefinedTypeSyntax.ToFullString()}>";
}
}
