private void peekError(TokenType type)
{
var msg = $"expected next token to be {type}, got {_peekToken.Type} instead";
ParserTracing.Error(msg);
_errors.Add(msg);
}
private void noPrefixParseFnError(TokenType type)
{
var msg = $"no prefix parse function for {type} found";
ParserTracing.Error(msg);
_errors.Add(msg);
}
private Expression parseIntegerLiteral()
{
ParserTracing.Trace("integer literal");
var token = _currentToken;
if (!Int64.TryParse(_currentToken.Literal, System.Globalization.NumberStyles.None, null, out var value))
{
var msg = $"could not parse \"{_currentToken.Literal}\" as integer";
ParserTracing.Error(msg);
_errors.Add(msg);
return(null);
}
ParserTracing.Untrace("integer literal");
return(new IntegerLiteral {
Token = token, Value = value
});
}
