public void TryParseOrchestration()
{
// Arrange
var model = Calculator.Semantic;
var method = Calculator.MultiplyMethod;
// Act
var result = DurableFunction.TryParse(model, method, out DurableFunction function);
// Assert
Assert.True(result);
Assert.Equal("WebJobs.Extensions.DurableTask.CodeGen.Example.Calculator.Multiply", function.FullTypeName);
Assert.Equal(2, function.RequiredNamespaces.Count);
var requiredNamespaceList = function.RequiredNamespaces.ToList();
Assert.Equal("System.Threading.Tasks", requiredNamespaceList[0]);
Assert.Equal("Microsoft.Azure.WebJobs.Extensions.DurableTask", requiredNamespaceList[1]);
Assert.Equal("Multiply", function.Name);
Assert.Equal(DurableFunctionKind.Orchestration, function.Kind);
Assert.Equal(2, function.Parameters.Count);
Assert.Equal("int", function.Parameters[0].Type.ToString());
Assert.Equal("int", function.Parameters[1].Type.ToString());
Assert.Equal("num1", function.Parameters[0].Name);
Assert.Equal("num2", function.Parameters[1].Name);
Assert.Equal("Task<int>", function.ReturnType);
Assert.Equal("<int>", function.CallGenerics);
}
public void OnVisitSyntaxNode(GeneratorSyntaxContext context)
{
try
{
// Only search on one visit, because we just need need to find the DurableTask types
// once and then hold a reference of them to use later.
if (!Searched)
{
Searched = true;
Initialized = true;
Initialized &= DurableFunctionUtility.TryFindDurableOrchestrationContextType(context.SemanticModel, out var durableOrchestrationContextTypeSymbol);
Initialized &= DurableFunctionUtility.TryFindDurableClientType(context.SemanticModel, out var durableClientTypeSymbol);
DurableOrchestrationContextTypeSymbol = durableOrchestrationContextTypeSymbol;
DurableClientTypeSymbol = durableClientTypeSymbol;
}
// Must have found DurableTask types in order to find DurableFunctions
if (!Initialized)
{
return;
}
// Looking for things that are methods
if (!(context.Node is MethodDeclarationSyntax method))
{
return;
}
if (!DurableFunction.TryParse(context.SemanticModel, method, out DurableFunction function))
{
return;
}
Debug.WriteLine($"Adding function '{function.Name}'");
DurableFunctions.Add(function);
}
catch (Exception ex)
{
Debug.WriteLine(ex.ToString());
}
}