// Verify that the next token in the input file is of the same type
// that the parser expects.
TokenClass ParserClass::Match(TokenType expectedType)
{
TokenClass currentToken = this->mScanner->GetNextToken();
if (currentToken.GetTokenType() != expectedType)
{
std::cerr << "Error in ParserClass::Match. " << std::endl;
std::cerr << "Expected token type " <<
TokenClass::GetTokenTypeName(expectedType) <<
", but got type " << currentToken.GetTokenTypeName() <<
std::endl;
exit(1);
}
MSG("\tSuccessfully matched Token Type: " << currentToken.GetTokenTypeName() << ". Lexeme: \"" <<
currentToken.GetLexeme() << "\"");
return currentToken; // the one we just processed
}
TokenClass ParserClass::Match(TokenType expectedType) {
TokenClass currToken = mScanner->GetNextToken();
if (currToken.GetTokenType() != expectedType) {
cerr << "Error in ParserClass::Match. " << endl;
cerr << "Recieved token type " << currToken.GetTokenTypeName() << endl;
exit(1);
}
MSG("Sucessfully matched Token Type: " <<
currentToken.GetTokenTypeName() << ". Lexeme: \"" <<
currentToken.GetLexeme() << "\"");
return currToken;
}