private static bool IsAlreadyOrCanBecameIterator([NotNull] ICSharpFunctionDeclaration declaration, [NotNull] IType returnType)
{
if (declaration.IsIterator)
{
return(true);
}
if (declaration.IsAsync)
{
return(false);
}
if (returnType.IsGenericIEnumerable() ||
returnType.IsGenericIEnumerator() ||
returnType.IsIEnumerable() ||
returnType.IsIEnumerator())
{
return(!declaration.Descendants <IReturnStatement>().Any());
}
return(false);
}