Find all static method calls in a class

If you can get hold of all ITypeElement objects in your solution, then each ITypeElement has a Methods Collection of IMethodObjects. Each IMethod object has an IsStatic property, which means that you can find all static methods in the solution.

Next you need to find all references to static methods occurring in the class you want to refactor. For each ITypeElement you can find all the usages of each method using the following code (which assumes that you have an ISolution in a variable called Solution and your IMethod is stored in a variable called elementToFindReferencesTo)

 SearchDomainFactory searchDomainFactory = _solution.GetComponent<SearchDomainFactory>();

 

var searchResultsConsumer = new SearchResultsConsumer();
 
            
_solution.GetPsiServices().Finder.FindReferences(
                elementToFindReferencesTo,
                searchDomainFactory.CreateSearchDomain(_solution, false),
                searchResultsConsumer,
                NullProgressIndicator.Instance,
                false);

var occurrences = searchResultsConsumer.GetOccurences()

occurrences is a collection of IOccurence which has a TypeElement property which you can check to see if it's in your class.