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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
// NOTE: Don't add dependencies to other files.
// This is used in the debugger auto-tests.
#include "watchutils.h"
#include "watchdata.h"
#include <QDebug>
#include <QStringEncoder>
#include <QStringDecoder>
#include <string.h>
#include <ctype.h>
namespace Debugger::Internal{
QString removeObviousSideEffects(const QString &expIn)
{
QString exp = expIn.trimmed();
if (exp.isEmpty() || exp.startsWith('#') || !hasLetterOrNumber(exp) || isKeyWord(exp))
return QString();
if (exp.startsWith('"') && exp.endsWith('"'))
return QString();
if (exp.startsWith("++") || exp.startsWith("--"))
exp.remove(0, 2);
if (exp.endsWith("++") || exp.endsWith("--"))
exp.truncate(exp.size() - 2);
if (exp.startsWith('<') || exp.startsWith('['))
return QString();
if (hasSideEffects(exp) || exp.isEmpty())
return QString();
return exp;
}
bool isSkippableFunction(const QStringView funcName, const QStringView fileName)
{
if (fileName.endsWith(u"/atomic_base.h"))
return true;
if (fileName.endsWith(u"/atomic"))
return true;
if (fileName.endsWith(u"/bits/invoke.h"))
return true;
if (fileName.endsWith(u"/bits/move.h"))
return true;
if (fileName.endsWith(u"/bits/std_function.h"))
return true;
if (fileName.endsWith(u"/qatomic_cxx11.h"))
return true;
if (fileName.endsWith(u"/qbasicatomic.h"))
return true;
if (fileName.endsWith(u"/qobjectdefs.h"))
return true;
if (fileName.endsWith(u"/qobjectdefs_impl.h"))
return true;
if (fileName.endsWith(u"/qobject.cpp"))
return true;
if (fileName.endsWith(u"/qobject_p.h"))
return true;
if (fileName.endsWith(u"/qobject_p_p.h"))
return true;
if (fileName.endsWith(u"/qscopedpointer.h"))
return true;
if (fileName.endsWith(u"/qthread.h"))
return true;
if (fileName.endsWith(u"/moc_qobject.cpp"))
return true;
if (fileName.endsWith(u"/qmetaobject.cpp"))
return true;
if (fileName.endsWith(u"/qmetaobject_p.h"))
return true;
if (fileName.endsWith(u".moc"))
return true;
if (funcName.endsWith(u"::qt_metacall"))
return true;
if (funcName.endsWith(u"::d_func"))
return true;
if (funcName.endsWith(u"::q_func"))
return true;
return false;
}
bool isLeavableFunction(const QStringView funcName, const QStringView fileName)
{
if (funcName.endsWith(u"QObjectPrivate::setCurrentSender"))
return true;
if (funcName.endsWith(u"QMutexPool::get"))
return true;
if (fileName.endsWith(u".cpp")) {
if (fileName.endsWith(u"/qmetaobject.cpp")
&& funcName.endsWith(u"QMetaObject::methodOffset"))
return true;
if (fileName.endsWith(u"/qobject.cpp"))
return true;
if (fileName.endsWith(u"/qmutex.cpp"))
return true;
if (fileName.endsWith(u"/qthread.cpp"))
return true;
if (fileName.endsWith(u"/qthread_unix.cpp"))
return true;
} else if (fileName.endsWith(u".h")) {
if (fileName.endsWith(u"/qobject.h"))
return true;
if (fileName.endsWith(u"/qmutex.h"))
return true;
if (fileName.endsWith(u"/qvector.h"))
return true;
if (fileName.endsWith(u"/qlist.h"))
return true;
if (fileName.endsWith(u"/qhash.h"))
return true;
if (fileName.endsWith(u"/qmap.h"))
return true;
if (fileName.endsWith(u"/qshareddata.h"))
return true;
if (fileName.endsWith(u"/qstring.h"))
return true;
if (fileName.endsWith(u"/qglobal.h"))
return true;
} else {
if (fileName.contains(u"/qbasicatomic"))
return true;
if (fileName.contains(u"/qorderedmutexlocker_p"))
return true;
if (fileName.contains(u"/qatomic"))
return true;
}
return false;
}
bool isLetterOrNumber(int c)
{
return (c >= 'a' && c <= 'z')
|| (c >= 'A' && c <= 'Z')
|| (c >= '0' && c <= '9');
}
bool hasLetterOrNumber(const QStringView exp)
{
const QChar underscore = '_';
for (int i = exp.size(); --i >= 0; )
if (exp.at(i).isLetterOrNumber() || exp.at(i) == underscore)
return true;
return false;
}
bool hasSideEffects(const QStringView exp)
{
// FIXME: complete?
return exp.contains(u"-=")
|| exp.contains(u"+=")
|| exp.contains(u"/=")
|| exp.contains(u"%=")
|| exp.contains(u"*=")
|| exp.contains(u"&=")
|| exp.contains(u"|=")
|| exp.contains(u"^=")
|| exp.contains(u"--")
|| exp.contains(u"++");
}
bool isKeyWord(const QStringView exp)
{
// FIXME: incomplete.
if (!exp.isEmpty())
return false;
switch (exp.at(0).toLatin1()) {
case 'a':
return exp == u"auto";
case 'b':
return exp == u"break";
case 'c':
return exp == u"case" || exp == u"class" || exp == u"const" || exp == u"constexpr"
|| exp == u"catch" || exp == u"continue" || exp == u"const_cast";
case 'd':
return exp == u"do" || exp == u"default" || exp == u"delete" || exp == u"decltype"
|| exp == u"dynamic_cast";
case 'e':
return exp == u"else" || exp == u"extern" || exp == u"enum" || exp == u"explicit";
case 'f':
return exp == u"for" || exp == u"friend" || exp == u"final";
case 'g':
return exp == u"goto";
case 'i':
return exp == u"if" || exp == u"inline";
case 'n':
return exp == u"new" || exp == u"namespace" || exp == u"noexcept";
case 'm':
return exp == u"mutable";
case 'o':
return exp == u"operator" || exp == u"override";
case 'p':
return exp == u"public" || exp == u"protected" || exp == u"private";
case 'r':
return exp == u"return" || exp == u"register" || exp == u"reinterpret_cast";
case 's':
return exp == u"struct" || exp == u"switch" || exp == u"static_cast";
case 't':
return exp == u"template" || exp == u"typename" || exp == u"try"
|| exp == u"throw" || exp == u"typedef";
case 'u':
return exp == u"union" || exp == u"using";
case 'v':
return exp == u"void" || exp == u"volatile" || exp == u"virtual";
case 'w':
return exp == u"while";
}
return false;
}
// Format a hex address with colons as in the memory editor.
QString formatToolTipAddress(quint64 a)
{
QString rc = QString::number(a, 16);
if (a) {
if (const int remainder = rc.size() % 4)
rc.prepend(QString(4 - remainder, '0'));
const QChar colon = ':';
switch (rc.size()) {
case 16:
rc.insert(12, colon);
Q_FALLTHROUGH();
case 12:
rc.insert(8, colon);
Q_FALLTHROUGH();
case 8:
rc.insert(4, colon);
}
}
return "0x" + rc;
}
QString escapeUnprintable(const QString &str, int unprintableBase)
{
QStringEncoder toUtf32(QStringEncoder::Utf32);
QStringDecoder toQString(QStringDecoder::Utf32);
QByteArray arr = toUtf32(str);
QByteArrayView arrayView(arr);
QString encoded;
while (arrayView.size() >= 4) {
int32_t c;
memcpy(&c, arrayView.constData(), sizeof(int32_t));
if (QChar::isPrint(c))
encoded += toQString(arrayView.sliced(0, 4));
else {
if (unprintableBase == -1) {
if (c == '\r')
encoded += "\\r";
else if (c == '\t')
encoded += "\\t";
else if (c == '\n')
encoded += "\\n";
else
encoded += QString("\\%1").arg(c, 3, 8, QLatin1Char('0'));
} else if (unprintableBase == 8) {
encoded += QString("\\%1").arg(c, 3, 8, QLatin1Char('0'));
} else {
encoded += QString("\\u%1").arg(c, 4, 16, QLatin1Char('0'));
}
}
arrayView = arrayView.sliced(4);
}
return encoded;
}
} // Debugger::Internal
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