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#include "parsercontext.h"
#include "parsererror.h"
#include "lexer.h"
#include <QDebug>
ParserContext::~ParserContext()
{
cleanUp();
}
void ParserContext::addQuery(SqliteQuery *query)
{
parsedQueries << SqliteQueryPtr(query);
}
void ParserContext::error(TokenPtr token, const QString &text)
{
if (token->start > -1 && token->end > -1)
errors << new ParserError(token, text);
else if (managedTokens.size() > 0)
errors << new ParserError(managedTokens.last()->start, managedTokens.last()->end + 1, text);
else
errors << new ParserError(text);
successful = false;
}
void ParserContext::error(Token* token, const QString& text)
{
if (token->type != Token::INVALID)
error(getTokenPtr(token), text);
else if (managedTokens.size() > 0)
error(managedTokens.last(), text);
else
error(text);
}
void ParserContext::error(const QString &text)
{
errors << new ParserError(text);
successful = false;
}
void ParserContext::minorErrorAfterLastToken(const QString &text)
{
if (ignoreMinorErrors)
return;
if (managedTokens.isEmpty())
{
qCritical() << "Tried to report minor error after last token, but there's no tokens!";
return;
}
error(managedTokens.last(), text);
}
void ParserContext::minorErrorBeforeNextToken(const QString &text)
{
if (ignoreMinorErrors)
return;
raiseErrorBeforeNextToken = true;
nextTokenError = text;
}
void ParserContext::errorAfterLastToken(const QString& text)
{
if (managedTokens.isEmpty())
{
qCritical() << "Tried to report error after last token, but there's no tokens!";
return;
}
error(managedTokens.last(), text);
}
void ParserContext::errorBeforeNextToken(const QString& text)
{
raiseErrorBeforeNextToken = true;
nextTokenError = text;
}
void ParserContext::errorAtToken(const QString& text, int pos)
{
if (managedTokens.isEmpty())
{
qCritical() << "Tried to report error at token" << pos << ", but there's no tokens!";
return;
}
int idx = managedTokens.size() - 1 + pos;
if (idx < 0 && idx >= managedTokens.size())
{
qCritical() << "Tried to report error at token" << pos << ", calculated idx was out of range:" << idx
<< "(manages tokens size:" << managedTokens.size() << ").";
return;
}
error(managedTokens[idx], text);
}
void ParserContext::flushErrors()
{
if (raiseErrorBeforeNextToken && !ignoreMinorErrors)
{
if (managedTokens.size() > 0)
error(managedTokens.last(), QObject::tr("Incomplete query."));
else
error(QObject::tr("Incomplete query."));
nextTokenError = QString::null;
raiseErrorBeforeNextToken = false;
}
}
TokenPtr ParserContext::getTokenPtr(Token* token)
{
if (tokenPtrMap.contains(token))
return tokenPtrMap[token];
TokenPtr tokenPtr = Lexer::getEveryTokenTypePtr(token);
if (!tokenPtr.isNull())
return tokenPtr;
qWarning() << "No TokenPtr for Token*. Token asked:" << token->toString();
return TokenPtr();
}
TokenList ParserContext::getTokenPtrList(const QList<Token*>& tokens)
{
TokenList resList;
foreach (Token* token, tokens)
resList << getTokenPtr(token);
return resList;
}
void ParserContext::addManagedToken(TokenPtr token)
{
managedTokens << token;
tokenPtrMap[token.data()] = token;
if (raiseErrorBeforeNextToken)
{
error(token, nextTokenError);
nextTokenError = QString::null;
raiseErrorBeforeNextToken = false;
}
}
bool ParserContext::isSuccessful() const
{
return successful;
}
const QList<SqliteQueryPtr>& ParserContext::getQueries()
{
return parsedQueries;
}
const QList<ParserError *> &ParserContext::getErrors()
{
return errors;
}
QVariant *ParserContext::handleNumberToken(const QString &tokenValue)
{
recentNumberIsCandidateForMaxNegative = false;
if (tokenValue.startsWith("0x", Qt::CaseInsensitive))
{
bool ok;
qint64 i64 = tokenValue.toLongLong(&ok, 16);
if (!ok)
{
quint64 ui64 = tokenValue.toULongLong(&ok, 16);
i64 = static_cast<qint64>(ui64);
}
return new QVariant(i64);
}
else if (tokenValue == "9223372036854775808") // max negative longlong value, but without a sign
{
recentNumberIsCandidateForMaxNegative = true;
return new QVariant(static_cast<qint64>(0L));
}
else
{
return new QVariant(QVariant(tokenValue).toLongLong());
}
}
bool ParserContext::isCandidateForMaxNegativeNumber() const
{
return recentNumberIsCandidateForMaxNegative;
}
void ParserContext::cleanUp()
{
foreach (ParserError* err, errors)
delete err;
parsedQueries.clear();
errors.clear();
managedTokens.clear();
nextTokenError.clear();
tokenPtrMap.clear();
raiseErrorBeforeNextToken = false;
successful = true;
}
bool ParserContext::isManagedToken(Token* token)
{
return tokenPtrMap.contains(token);
}
TokenList ParserContext::getManagedTokens()
{
return managedTokens;
}
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