void QNetworkProtocol::processNextOperation( QNetworkOperation *old )
{
#ifdef QNETWORKPROTOCOL_DEBUG
qDebug( "QNetworkOperation: process next operation, old: %p", old );
#endif
d->removeTimer->stop();
if ( old )
d->oldOps.append( old );
if ( d->opInProgress && d->opInProgress!=old )
d->oldOps.append( d->opInProgress );
if ( d->operationQueue.isEmpty() ) {
d->opInProgress = 0;
if ( d->autoDelete )
d->removeTimer->start( d->removeInterval, TRUE );
return;
}
QNetworkOperation *op = d->operationQueue.head();
d->opInProgress = 0;
if ( !checkConnection( op ) ) {
if ( op->state() != QNetworkProtocol::StFailed ) {
d->opStartTimer->start( 0, TRUE );
d->opInProgress = op;
} else {
d->opInProgress = op;
d->operationQueue.dequeue();
clearOperationQueue();
emit finished( op );
}
return;
}
d->opInProgress = op;
d->operationQueue.dequeue();
processOperation( op );
}
Value *ValueProcessor::processStatement(TokenList::const_iterator &i,
TokenList::const_iterator &end,
const ValueScope &scope,
bool defaultVal) const {
Value *op, *v;
skipWhitespace(i, end);
v = processConstant(i, end, scope, defaultVal);
if (v != NULL) {
skipWhitespace(i, end);
while ((op = processOperation(i, end, *v, scope, OP_NONE, defaultVal)) != NULL) {
delete v;
v = op;
skipWhitespace(i, end);
}
return v;
} else
return NULL;
}
Value *ValueProcessor::processOperation(TokenList::const_iterator &i,
TokenList::const_iterator &end,
const Value &operand1,
const ValueScope &scope,
ValueProcessor::Operator lastop,
bool defaultVal) const {
TokenList::const_iterator tmp;
const Value *operand2;
Value *result;
Operator op;
const Token *opToken;
if (i == end)
return NULL;
opToken = &(*i);
tmp = i;
if ((op = processOperator(tmp, end)) == OP_NONE ||
(lastop != OP_NONE && lastop >= op))
return NULL;
i = tmp;
skipWhitespace(i, end);
operand2 = processConstant(i, end, scope, defaultVal);
if (operand2 == NULL) {
if (i == end)
throw new ParseException("end of line",
"Constant or @-variable",
opToken->line,
opToken->column,
opToken->source);
else
throw new ParseException(
*i, "Constant or @-variable", (*i).line, (*i).column, (*i).source);
}
skipWhitespace(i, end);
while ((result = processOperation(i, end, *operand2, scope, op, defaultVal))) {
delete operand2;
operand2 = result;
skipWhitespace(i, end);
}
if (op == OP_ADD)
result = operand1 + *operand2;
else if (op == OP_SUBSTRACT)
result = operand1 - *operand2;
else if (op == OP_MULTIPLY)
result = operand1 * *operand2;
else if (op == OP_DIVIDE)
result = operand1 / *operand2;
else if (op == OP_EQUALS)
result = new BooleanValue(operand1 == *operand2);
else if (op == OP_LESS)
result = new BooleanValue(operand1 < *operand2);
else if (op == OP_GREATER)
result = new BooleanValue(operand1 > *operand2);
else if (op == OP_LESS_EQUALS)
result = new BooleanValue(operand1 <= *operand2);
else if (op == OP_GREATER_EQUALS)
result = new BooleanValue(operand1 >= *operand2);
delete operand2;
result->setLocation(*opToken);
return result;
}
