public CommandTreeToken Expect(CommandTreeToken.Kind expected)
{
if (Current == null)
{
throw CommandParseException.ExpectedTokenButFoundNull(expected);
}
var found = Current.TokenKind;
if (expected != found)
{
throw CommandParseException.ExpectedTokenButFoundOther(expected, found);
}
return(Current);
}
public static ParseException ExpectedTokenButFoundOther(CommandTreeToken.Kind expected, CommandTreeToken.Kind found)
{
return(new ParseException($"Expected to find token of type '{expected}' but found '{found}' instead."));
}
public CommandTreeToken?Consume(CommandTreeToken.Kind type)
{
Expect(type);
return(Consume());
}
public static ParseException ExpectedTokenButFoundNull(CommandTreeToken.Kind expected)
{
return(new ParseException($"Expected to find any token of type '{expected}' but found null instead."));
}
