private IEnumerable <INamedTypeSymbol> GetAllTypes(SyntaxContext syntaxContext, Options.Options options)
{
var symbolsToTraverse = new Queue <INamespaceOrTypeSymbol>();
var globalNamespace = syntaxContext.SemanticModel.Compilation.GlobalNamespace;
symbolsToTraverse.Enqueue(globalNamespace);
while (symbolsToTraverse.Count > 0)
{
var current = symbolsToTraverse.Dequeue();
foreach (var member in current.GetMembers())
{
if (member is INamedTypeSymbol namedTypeSymbol)
{
if (syntaxContext.IsAccessible(namedTypeSymbol) &&
!(options.FilterOutObsoleteSymbols && namedTypeSymbol.IsObsolete()))
{
yield return(namedTypeSymbol);
if (options.SuggestNestedTypes)
{
symbolsToTraverse.Enqueue(namedTypeSymbol);
}
}
}
else if (member is INamespaceSymbol ns)
{
symbolsToTraverse.Enqueue(ns);
}
}
}
}
public IEnumerable <CompletionItem> GetCompletionItemsForType(INamedTypeSymbol typeSymbol, SyntaxContext syntaxContext, Options.Options options)
{
if (syntaxContext.IsNamespaceImported(typeSymbol.ContainingNamespace) ||
!typeSymbol.MightContainExtensionMethods)
{
return(null);
}
var extMethodSymbols = typeSymbol
.GetMembers()
.OfType <IMethodSymbol>()
.Where(methodSymbol => syntaxContext.IsAccessible(methodSymbol) &&
!(options.FilterOutObsoleteSymbols && methodSymbol.IsObsolete()))
.Select(m => m.ReduceExtensionMethod(syntaxContext.AccessedSymbolType))
.Where(m => m != null);
return(extMethodSymbols.Select(s => CreateCompletionItemForSymbol(s, syntaxContext, options)));
}
