public static bool StartsWith(
this ISingleLinkedList <ContextData> context,
Enum firstPtr,
out ContextData first,
out ISingleLinkedList <ContextData> tail)
{
if (context.StartsWith(firstPtr, out first))
{
tail = context.Tail;
return(true);
}
tail = null;
return(true);
}
public static bool StartsWith(
this ISingleLinkedList <ContextData> context,
Enum firstPtr, Enum secondPtr,
out ContextData first, out ContextData second,
out ISingleLinkedList <ContextData> tail)
{
if (context.StartsWith(firstPtr, out first, out var rest) && rest.StartsWith(secondPtr, out second, out tail))
{
return(true);
}
first = null;
second = null;
tail = null;
return(false);
}
public static bool StartsWith(
this ISingleLinkedList <ContextData> context,
Enum firstPtr) =>
context.StartsWith(firstPtr, out _);
