private async Task <IEnumerable <INamedTypeSymbol> > FindImplementingTypesAsync([NotNull] INamedTypeSymbol interfaceSymbol)
{
var result = new List <INamedTypeSymbol>();
var solution = await GetCurrentSolutionAsync();
var implementerSymbols = await SymbolFinder.FindImplementationsAsync(interfaceSymbol, solution);
foreach (var namedTypeSymbol in implementerSymbols.OfType <INamedTypeSymbol>())
{
var interfaces = namedTypeSymbol.Interfaces.Select(i => i.OriginalDefinition);
if (interfaces.Any(i => _symbolEqualityComparer.Equals(i, interfaceSymbol)))
{
result.Add(namedTypeSymbol);
}
}
// For some reason SymbolFinder does not find implementer structs. So we also make a search with a visitor.
foreach (var compilation in await GetCompilationsAsync())
{
var visitor = new ImplementingTypesFinderVisitor(interfaceSymbol);
compilation.Assembly?.Accept(visitor);
result.AddRange(visitor.ImplementingTypeSymbols.Where(i => i.TypeKind == TypeKind.Struct));
}
return(result);
}
private static IEnumerable <INamedTypeSymbol> FindImplementingTypes(Workspace workspace, INamedTypeSymbol interfaceSymbol)
{
var implementerSymbols = SymbolFinder.FindImplementationsAsync(interfaceSymbol, workspace.CurrentSolution).Result;
foreach (var namedTypeSymbol in implementerSymbols.OfType <INamedTypeSymbol>())
{
var interfaces = namedTypeSymbol.Interfaces.Select(i => i.OriginalDefinition);
if (interfaces.Any(i => i.SymbolEquals(interfaceSymbol)))
{
yield return(namedTypeSymbol);
}
}
// For some reason SymbolFinder does not find implementer structs. So we also make a search with a visitor.
foreach (var compilation in GetCompilations(workspace))
{
var visitor = new ImplementingTypesFinderVisitor(interfaceSymbol);
compilation.Assembly?.Accept(visitor);
foreach (var descendant in visitor.ImplementingTypeSymbols.Where(i => i.TypeKind == TypeKind.Struct))
{
yield return(descendant);
}
}
}
