internal sealed override bool TryParse(ref ParseState <TToken> state, ref ExpectedCollector <TToken> expecteds, out Unit result)
{
if (state.HasCurrent)
{
state.Error = new InternalError <TToken>(
Maybe.Just(state.Current),
false,
state.Location,
null
);
expecteds.Add(new Expected <TToken>());
result = default;
return(false);
}
result = Unit.Value;
return(true);
}
internal sealed override bool TryParse(ref ParseState <TToken> state, ref ExpectedCollector <TToken> expecteds, out int result)
{
result = state.Location;
return(true);
}
internal override bool TryParse(ref ParseState <TToken> state, ref ExpectedCollector <TToken> expecteds, out T result)
{
throw new NotImplementedException();
}
internal sealed override bool TryParse(ref ParseState <TToken> state, ref ExpectedCollector <TToken> expecteds, out SourcePos result)
{
result = state.ComputeSourcePos();
return(true);
}
internal sealed override bool TryParse(ref ParseState <TToken> state, ref ExpectedCollector <TToken> expecteds, out T result)
{
result = _value;
return(true);
}