private Task <RichGenerationResult> GenerateAsync(TypeDeclarationSyntax typeDeclaration,
TransformationContext context, AttributeData attributeData)
{
if (!(context.ProcessingNode.Parent is NamespaceDeclarationSyntax namespaceDeclarationSyntax))
{
throw new Exception($"Failed to determine namespace for type:'{context.ProcessingNode.Parent}'.");
}
#if DEBUG
var attachDebuggerOnNode = attributeData.GetNamedArgumentValueOrDefault <bool>(nameof(ImplementInterfaceAttribute.AttachDebuggerOnNode));
if (attachDebuggerOnNode)
{
Debugger.Launch();
}
#endif
var descriptor = GetImplementationDescriptor(typeDeclaration, context, attributeData);
var implementationMemberDeclaration = GetImplementation(descriptor);
var @namespace = NamespaceDeclaration(namespaceDeclarationSyntax.Name)
.AddMembers(implementationMemberDeclaration);
var generatedMembers = new List <MemberDeclarationSyntax> {
@namespace
};
var result = new RichGenerationResult {
Members = new SyntaxList <MemberDeclarationSyntax>(generatedMembers)
};
return(Task.FromResult(result));
}
public static MetricsCollectorDescriptor ToMetricsCollectorDescriptor(
this TypeDeclarationSyntax typeDeclarationSyntax, TransformationContext context, AttributeData attributeData)
{
var className = typeDeclarationSyntax.GetClassNameFromInterfaceDeclaration(false);
var methodDeclarations = typeDeclarationSyntax.GetAllMethodDeclarations(context);
var inheritedInterfaceTypes = attributeData.GetInheritedInterfaceTypes();
var metricsCollectorMethods = methodDeclarations.GetMetricsCollectorMethods(context);
var contextName =
attributeData.GetNamedArgumentValueOrDefault(nameof(GenerateMetricsCollectorAttribute.ContextName), className);
return(new MetricsCollectorDescriptor(typeDeclarationSyntax, contextName, className,
inheritedInterfaceTypes, metricsCollectorMethods));
}