public BoolConstantAstNode(bool val)
{
Value = val;
if (val)
{
Token = new TokenItem {
KeyWord = KeyWords.True, Type = TokenType.Keyword, TokenString = "true",
};
}
else
{
Token = new TokenItem {
KeyWord = KeyWords.False, Type = TokenType.Keyword, TokenString = "false",
};
}
}
public TokenItem NextToken()
{
while (_idx < _input.Length && (
_input[_idx] == ' ' ||
_input[_idx] == ' ' ||
_input[_idx] == '\t' ||
_input[_idx] == '\n'))
{
_idx++;
}
if (_idx >= _input.Length)
{
_errors.Add(new TokenizeError()
{
Start = _idx, Length = 0, Type = TokenizeErrorType.IndexOutOfRange
});
return(null);
}
TokenItem token = ReadOperator() ?? ReadLiteral();
return(token);
}
public void Failback(TokenItem token)
{
_idx -= token.TokenString.Length;
}
