internal bool IsNullableFor(uint nextCharKind)
{
Debug.Assert(CharKind.IsValidCharKind(nextCharKind));
uint context = CharKind.Context(PrevCharKind, nextCharKind);
return(Node.IsNullableFor(context));
}
/// <summary>
/// Returns the fixed length that any match ending with this state must have, or -1 if there is no such
/// fixed length, <see cref="SymbolicRegexNode{TSet}.ResolveFixedLength(uint)"/>. The context is defined
/// by <see cref="PrevCharKind"/> of this state and the given nextCharKind. The node must be nullable here.
/// </summary>
internal int FixedLength(uint nextCharKind)
{
Debug.Assert(IsNullableFor(nextCharKind));
Debug.Assert(CharKind.IsValidCharKind(nextCharKind));
uint context = CharKind.Context(PrevCharKind, nextCharKind);
return(Node.ResolveFixedLength(context));
}
