void Parser::matchNot(int t)
{
if ( LA(1)==t ) {
// Throws inverted-sense exception
throw MismatchedTokenException(getTokenNames(), getNumTokens(), LT(1), t, true, getFilename());
} else {
// mark token as consumed -- fetch next token deferred until LA/LT
consume();
}
}
string BasePortugolParser::getTokenDescription(const RefToken& token) {
string str;
if(token->getType() == PortugolParserTokenTypes::T_IDENTIFICADOR) {
str = "\"";
str += token->getText();
str += "\"";
} else if(isKeyword(token->getType())) {
str = "a palavra-chave ";
str += getTokenNames()[token->getType()];
} else if(token->getType() == PortugolParserTokenTypes::EOF_) {
str = "fim de arquivo (EOF)";
} else {
// str = getTokenNames()[token->getType()];
str = token->getText();
}
return str;
}
/**Make sure current lookahead symbol matches token type <tt>t</tt>.
* Throw an exception upon mismatch, which is catch by either the
* error handler or by the syntactic predicate.
*/
void Parser::match(int t)
{
if ( DEBUG_PARSER )
{
traceIndent();
ANTLR_USE_NAMESPACE(std)cout << "enter match(" << t << ") with LA(1)=" << LA(1) << ANTLR_USE_NAMESPACE(std)endl;
}
if ( LA(1)!=t ) {
if ( DEBUG_PARSER )
{
traceIndent();
ANTLR_USE_NAMESPACE(std)cout << "token mismatch: " << LA(1) << "!=" << t << ANTLR_USE_NAMESPACE(std)endl;
}
throw MismatchedTokenException(getTokenNames(), getNumTokens(), LT(1), t, false, getFilename());
} else {
// mark token as consumed -- fetch next token deferred until LA/LT
consume();
}
}
/**Make sure current lookahead symbol matches the given set
* Throw an exception upon mismatch, which is catch by either the
* error handler or by the syntactic predicate.
*/
void Parser::match(const BitSet& b)
{
if ( DEBUG_PARSER )
{
traceIndent();
ANTLR_USE_NAMESPACE(std)cout << "enter match(" << "bitset" /*b.toString()*/
<< ") with LA(1)=" << LA(1) << ANTLR_USE_NAMESPACE(std)endl;
}
if ( !b.member(LA(1)) ) {
if ( DEBUG_PARSER )
{
traceIndent();
ANTLR_USE_NAMESPACE(std)cout << "token mismatch: " << LA(1) << " not member of "
<< "bitset" /*b.toString()*/ << ANTLR_USE_NAMESPACE(std)endl;
}
throw MismatchedTokenException(getTokenNames(), getNumTokens(), LT(1), b, false, getFilename());
} else {
// mark token as consumed -- fetch next token deferred until LA/LT
consume();
}
}
void TreeParser::matchNot(RefAST t, int ttype)
{
if ( !t || t == ASTNULL || t->getType() == ttype )
throw MismatchedTokenException( getTokenNames(), getNumTokens(),
t, ttype, true );
}
/** Make sure current lookahead symbol matches the given set
* Throw an exception upon mismatch, which is caught by either the
* error handler or by the syntactic predicate.
*/
void TreeParser::match(RefAST t, const BitSet& b)
{
if ( !t || t==ASTNULL || !b.member(t->getType()) )
throw MismatchedTokenException( getTokenNames(), getNumTokens(),
t, b, false );
}
virtual void match(RefAST t, int ttype)
{
if (!t || t == ASTNULL || t->getType() != ttype )
throw MismatchedTokenException( getTokenNames(), getNumTokens(),
t, ttype, false );
}
