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qt-creator/src/plugins/debugger/watchutils.cpp
hjk d982b216ff debugger: rework dumping arrays of plain data 
Simple array data can be fetched in one go.
The "normal" way gdb asks the server for contents is one item
at a time, at ~3ms per round trip. Now we get 2000 in 200ms.

This also introduces a re-usable readRawMemory function and
removes a few checkAccess calls which will be triggered anyways.

Change-Id: Ic07a3d6593fd2ea45f7a8058509118fe22a845bb
Reviewed-by: hjk <qthjk@ovi.com>
2012-05-30 11:31:29 +02:00

970 lines
34 KiB
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/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2012 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** GNU Lesser General Public License Usage
**
** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this file.
** Please review the following information to ensure the GNU Lesser General
** Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** Other Usage
**
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**************************************************************************/
#include "watchutils.h"
#include "watchdata.h"
#include "debuggerstringutils.h"
#include "gdb/gdbmi.h"
#include <utils/qtcassert.h>
#include <coreplugin/idocument.h>
#include <texteditor/basetexteditor.h>
#include <texteditor/basetextmark.h>
#include <texteditor/itexteditor.h>
#include <texteditor/texteditorconstants.h>
#include <coreplugin/editormanager/editormanager.h>
#include <cpptools/cpptoolsconstants.h>
#include <cpptools/abstracteditorsupport.h>
#include <cpptools/ModelManagerInterface.h>
#include <cplusplus/ExpressionUnderCursor.h>
#include <cplusplus/Overview.h>
#include <Symbols.h>
#include <Scope.h>
#include <extensionsystem/pluginmanager.h>
#include <QCoreApplication>
#include <QDateTime>
#include <QDebug>
#include <QHash>
#include <QStringList>
#include <QTextStream>
#include <QTime>
#include <QTextCursor>
#include <QPlainTextEdit>
#include <string.h>
#include <ctype.h>
enum { debug = 0 };
// Debug helpers for code model. @todo: Move to some CppTools library?
namespace CPlusPlus {
static void debugCppSymbolRecursion(QTextStream &str, const Overview &o,
const Symbol &s, bool doRecurse = true,
int recursion = 0)
{
for (int i = 0; i < recursion; i++)
str << " ";
str << "Symbol: " << o.prettyName(s.name()) << " at line " << s.line();
if (s.isFunction())
str << " function";
if (s.isClass())
str << " class";
if (s.isDeclaration())
str << " declaration";
if (s.isBlock())
str << " block";
if (doRecurse && s.isScope()) {
const Scope *scoped = s.asScope();
const int size = scoped->memberCount();
str << " scoped symbol of " << size << '\n';
for (int m = 0; m < size; m++)
debugCppSymbolRecursion(str, o, *scoped->memberAt(m), true, recursion + 1);
} else {
str << '\n';
}
}
QDebug operator<<(QDebug d, const Symbol &s)
{
QString output;
CPlusPlus::Overview o;
QTextStream str(&output);
debugCppSymbolRecursion(str, o, s, true, 0);
d.nospace() << output;
return d;
}
QDebug operator<<(QDebug d, const Scope &scope)
{
QString output;
Overview o;
QTextStream str(&output);
const int size = scope.memberCount();
str << "Scope of " << size;
if (scope.isNamespace())
str << " namespace";
if (scope.isClass())
str << " class";
if (scope.isEnum())
str << " enum";
if (scope.isBlock())
str << " block";
if (scope.isFunction())
str << " function";
if (scope.isFunction())
str << " prototype";
#if 0 // ### port me
if (const Symbol *owner = &scope) {
str << " owner: ";
debugCppSymbolRecursion(str, o, *owner, false, 0);
} else {
str << " 0-owner\n";
}
#endif
for (int s = 0; s < size; s++)
debugCppSymbolRecursion(str, o, *scope.memberAt(s), true, 2);
d.nospace() << output;
return d;
}
} // namespace CPlusPlus
namespace Debugger {
namespace Internal {
bool isEditorDebuggable(Core::IEditor *editor)
{
// Only blacklist Qml. Whitelisting would fail on C++ code in files
// with strange names, more harm would be done this way.
// IDocument *file = editor->document();
// return !(file && file->mimeType() == "application/x-qml");
// Nowadays, even Qml is debuggable.
return editor;
}
QByteArray dotEscape(QByteArray str)
{
str.replace(' ', '.');
str.replace('\\', '.');
str.replace('/', '.');
return str;
}
QString currentTime()
{
return QTime::currentTime().toString(QLatin1String("hh:mm:ss.zzz"));
}
bool isSkippableFunction(const QString &funcName, const QString &fileName)
{
if (fileName.endsWith(QLatin1String("/qobject.cpp")))
return true;
if (fileName.endsWith(QLatin1String("/moc_qobject.cpp")))
return true;
if (fileName.endsWith(QLatin1String("/qmetaobject.cpp")))
return true;
if (fileName.endsWith(QLatin1String("/qmetaobject_p.h")))
return true;
if (fileName.endsWith(QLatin1String(".moc")))
return true;
if (funcName.endsWith(QLatin1String("::qt_metacall")))
return true;
if (funcName.endsWith(QLatin1String("::d_func")))
return true;
if (funcName.endsWith(QLatin1String("::q_func")))
return true;
return false;
}
bool isLeavableFunction(const QString &funcName, const QString &fileName)
{
if (funcName.endsWith(QLatin1String("QObjectPrivate::setCurrentSender")))
return true;
if (funcName.endsWith(QLatin1String("QMutexPool::get")))
return true;
if (fileName.endsWith(QLatin1String(".cpp"))) {
if (fileName.endsWith(QLatin1String("/qmetaobject.cpp"))
&& funcName.endsWith(QLatin1String("QMetaObject::methodOffset")))
return true;
if (fileName.endsWith(QLatin1String("/qobject.cpp"))
&& (funcName.endsWith(QLatin1String("QObjectConnectionListVector::at"))
|| funcName.endsWith(QLatin1String("~QObject"))))
return true;
if (fileName.endsWith(QLatin1String("/qmutex.cpp")))
return true;
if (fileName.endsWith(QLatin1String("/qthread.cpp")))
return true;
if (fileName.endsWith(QLatin1String("/qthread_unix.cpp")))
return true;
} else if (fileName.endsWith(QLatin1String(".h"))) {
if (fileName.endsWith(QLatin1String("/qobject.h")))
return true;
if (fileName.endsWith(QLatin1String("/qmutex.h")))
return true;
if (fileName.endsWith(QLatin1String("/qvector.h")))
return true;
if (fileName.endsWith(QLatin1String("/qlist.h")))
return true;
if (fileName.endsWith(QLatin1String("/qhash.h")))
return true;
if (fileName.endsWith(QLatin1String("/qmap.h")))
return true;
if (fileName.endsWith(QLatin1String("/qshareddata.h")))
return true;
if (fileName.endsWith(QLatin1String("/qstring.h")))
return true;
if (fileName.endsWith(QLatin1String("/qglobal.h")))
return true;
} else {
if (fileName.contains(QLatin1String("/qbasicatomic")))
return true;
if (fileName.contains(QLatin1String("/qorderedmutexlocker_p")))
return true;
if (fileName.contains(QLatin1String("/qatomic")))
return true;
}
return false;
}
bool isLetterOrNumber(char c)
{
return (c >= 'a' && c <= 'z')
|| (c >= 'A' && c <= 'Z')
|| (c >= '0' && c <= '9');
}
bool hasLetterOrNumber(const QString &exp)
{
const QChar underscore = QLatin1Char('_');
for (int i = exp.size(); --i >= 0; )
if (exp.at(i).isLetterOrNumber() || exp.at(i) == underscore)
return true;
return false;
}
bool hasSideEffects(const QString &exp)
{
// FIXME: complete?
return exp.contains(QLatin1String("-="))
|| exp.contains(QLatin1String("+="))
|| exp.contains(QLatin1String("/="))
|| exp.contains(QLatin1String("%="))
|| exp.contains(QLatin1String("*="))
|| exp.contains(QLatin1String("&="))
|| exp.contains(QLatin1String("|="))
|| exp.contains(QLatin1String("^="))
|| exp.contains(QLatin1String("--"))
|| exp.contains(QLatin1String("++"));
}
bool isKeyWord(const QString &exp)
{
// FIXME: incomplete
return exp == QLatin1String("class")
|| exp == QLatin1String("const")
|| exp == QLatin1String("do")
|| exp == QLatin1String("if")
|| exp == QLatin1String("return")
|| exp == QLatin1String("struct")
|| exp == QLatin1String("template")
|| exp == QLatin1String("void")
|| exp == QLatin1String("volatile")
|| exp == QLatin1String("while");
}
bool startsWithDigit(const QString &str)
{
return !str.isEmpty() && str.at(0).isDigit();
}
QByteArray stripPointerType(QByteArray type)
{
if (type.endsWith('*'))
type.chop(1);
if (type.endsWith("* const"))
type.chop(7);
if (type.endsWith(' '))
type.chop(1);
return type;
}
/* getUninitializedVariables(): Get variables that are not initialized
* at a certain line of a function from the code model to be able to
* indicate them as not in scope in the locals view.
* Find document + function in the code model, do a double check and
* collect declarative symbols that are in the function past or on
* the current line. blockRecursion() recurses up the scopes
* and collect symbols declared past or on the current line.
* Recursion goes up from the innermost scope, keeping a map
* of occurrences seen, to be able to derive the names of
* shadowed variables as the debugger sees them:
\code
int x; // Occurrence (1), should be reported as "x <shadowed 1>"
if (true) {
int x = 5; (2) // Occurrence (2), should be reported as "x"
}
\endcode
*/
typedef QHash<QString, int> SeenHash;
static void blockRecursion(const CPlusPlus::Overview &overview,
const CPlusPlus::Scope *scope,
unsigned line,
QStringList *uninitializedVariables,
SeenHash *seenHash,
int level = 0)
{
// Go backwards in case someone has identical variables in the same scope.
// Fixme: loop variables or similar are currently seen in the outer scope
for (int s = scope->memberCount() - 1; s >= 0; --s){
const CPlusPlus::Symbol *symbol = scope->memberAt(s);
if (symbol->isDeclaration()) {
// Find out about shadowed symbols by bookkeeping
// the already seen occurrences in a hash.
const QString name = overview.prettyName(symbol->name());
SeenHash::iterator it = seenHash->find(name);
if (it == seenHash->end()) {
it = seenHash->insert(name, 0);
} else {
++(it.value());
}
// Is the declaration on or past the current line, that is,
// the variable not initialized.
if (symbol->line() >= line)
uninitializedVariables->push_back(WatchData::shadowedName(name, it.value()));
}
}
// Next block scope.
if (const CPlusPlus::Scope *enclosingScope = scope->enclosingBlock())
blockRecursion(overview, enclosingScope, line, uninitializedVariables, seenHash, level + 1);
}
// Inline helper with integer error return codes.
static inline
int getUninitializedVariablesI(const CPlusPlus::Snapshot &snapshot,
const QString &functionName,
const QString &file,
int line,
QStringList *uninitializedVariables)
{
uninitializedVariables->clear();
// Find document
if (snapshot.isEmpty() || functionName.isEmpty() || file.isEmpty() || line < 1)
return 1;
const CPlusPlus::Snapshot::const_iterator docIt = snapshot.find(file);
if (docIt == snapshot.end())
return 2;
const CPlusPlus::Document::Ptr doc = docIt.value();
// Look at symbol at line and find its function. Either it is the
// function itself or some expression/variable.
const CPlusPlus::Symbol *symbolAtLine = doc->lastVisibleSymbolAt(line, 0);
if (!symbolAtLine)
return 4;
// First figure out the function to do a safety name check
// and the innermost scope at cursor position
const CPlusPlus::Function *function = 0;
const CPlusPlus::Scope *innerMostScope = 0;
if (symbolAtLine->isFunction()) {
function = symbolAtLine->asFunction();
if (function->memberCount() == 1) // Skip over function block
if (CPlusPlus::Block *block = function->memberAt(0)->asBlock())
innerMostScope = block;
} else {
if (const CPlusPlus::Scope *functionScope = symbolAtLine->enclosingFunction()) {
function = functionScope->asFunction();
innerMostScope = symbolAtLine->isBlock() ?
symbolAtLine->asBlock() :
symbolAtLine->enclosingBlock();
}
}
if (!function || !innerMostScope)
return 7;
// Compare function names with a bit off fuzz,
// skipping modules from a CDB symbol "lib!foo" or namespaces
// that the code model does not show at this point
CPlusPlus::Overview overview;
const QString name = overview.prettyName(function->name());
if (!functionName.endsWith(name))
return 11;
if (functionName.size() > name.size()) {
const char previousChar = functionName.at(functionName.size() - name.size() - 1).toLatin1();
if (previousChar != ':' && previousChar != '!' )
return 11;
}
// Starting from the innermost block scope, collect declarations.
SeenHash seenHash;
blockRecursion(overview, innerMostScope, line, uninitializedVariables, &seenHash);
return 0;
}
bool getUninitializedVariables(const CPlusPlus::Snapshot &snapshot,
const QString &function,
const QString &file,
int line,
QStringList *uninitializedVariables)
{
const int rc = getUninitializedVariablesI(snapshot, function, file, line, uninitializedVariables);
if (debug) {
QString msg;
QTextStream str(&msg);
str << "getUninitializedVariables() " << function << ' ' << file << ':' << line
<< " returns (int) " << rc << " '"
<< uninitializedVariables->join(QString(QLatin1Char(','))) << '\'';
if (rc)
str << " of " << snapshot.size() << " documents";
qDebug() << msg;
}
return rc == 0;
}
QByteArray gdbQuoteTypes(const QByteArray &type)
{
// gdb does not understand sizeof(Core::IDocument*).
// "sizeof('Core::IDocument*')" is also not acceptable,
// it needs to be "sizeof('Core::IDocument'*)"
//
// We never will have a perfect solution here (even if we had a full blown
// C++ parser as we do not have information on what is a type and what is
// a variable name. So "a<b>::c" could either be two comparisons of values
// 'a', 'b' and '::c', or a nested type 'c' in a template 'a<b>'. We
// assume here it is the latter.
//return type;
// (*('myns::QPointer<myns::QObject>*'*)0x684060)" is not acceptable
// (*('myns::QPointer<myns::QObject>'**)0x684060)" is acceptable
if (isPointerType(type))
return gdbQuoteTypes(stripPointerType(type)) + '*';
QByteArray accu;
QByteArray result;
int templateLevel = 0;
const char colon = ':';
const char singleQuote = '\'';
const char lessThan = '<';
const char greaterThan = '>';
for (int i = 0; i != type.size(); ++i) {
const char c = type.at(i);
if (isLetterOrNumber(c) || c == '_' || c == colon || c == ' ') {
accu += c;
} else if (c == lessThan) {
++templateLevel;
accu += c;
} else if (c == greaterThan) {
--templateLevel;
accu += c;
} else if (templateLevel > 0) {
accu += c;
} else {
if (accu.contains(colon) || accu.contains(lessThan))
result += singleQuote + accu + singleQuote;
else
result += accu;
accu.clear();
result += c;
}
}
if (accu.contains(colon) || accu.contains(lessThan))
result += singleQuote + accu + singleQuote;
else
result += accu;
//qDebug() << "GDB_QUOTING" << type << " TO " << result;
return result;
}
bool isSymbianIntType(const QByteArray &type)
{
return type == "TInt" || type == "TBool";
}
// Utilities to decode string data returned by the dumper helpers.
QString quoteUnprintableLatin1(const QByteArray &ba)
{
QString res;
char buf[10];
for (int i = 0, n = ba.size(); i != n; ++i) {
const unsigned char c = ba.at(i);
if (isprint(c)) {
res += QLatin1Char(c);
} else {
qsnprintf(buf, sizeof(buf) - 1, "\\%x", int(c));
res += QLatin1String(buf);
}
}
return res;
}
static QDate dateFromData(int jd)
{
return jd ? QDate::fromJulianDay(jd) : QDate();
}
static QTime timeFromData(int ms)
{
return ms == -1 ? QTime() : QTime(0, 0, 0, 0).addMSecs(ms);
}
QString decodeData(const QByteArray &ba, int encoding)
{
switch (encoding) {
case Unencoded8Bit: // 0
return quoteUnprintableLatin1(ba);
case Base64Encoded8BitWithQuotes: { // 1, used for QByteArray
const QChar doubleQuote(QLatin1Char('"'));
QString rc = doubleQuote;
rc += quoteUnprintableLatin1(QByteArray::fromBase64(ba));
rc += doubleQuote;
return rc;
}
case Base64Encoded16BitWithQuotes: { // 2, used for QString
const QChar doubleQuote(QLatin1Char('"'));
const QByteArray decodedBa = QByteArray::fromBase64(ba);
QString rc = doubleQuote;
rc += QString::fromUtf16(reinterpret_cast<const ushort *>
(decodedBa.data()), decodedBa.size() / 2);
rc += doubleQuote;
return rc;
}
case Base64Encoded32BitWithQuotes: { // 3
const QByteArray decodedBa = QByteArray::fromBase64(ba);
const QChar doubleQuote(QLatin1Char('"'));
QString rc = doubleQuote;
rc += QString::fromUcs4(reinterpret_cast<const uint *>
(decodedBa.data()), decodedBa.size() / 4);
rc += doubleQuote;
return rc;
}
case Base64Encoded16Bit: { // 4, without quotes (see 2)
const QByteArray decodedBa = QByteArray::fromBase64(ba);
return QString::fromUtf16(reinterpret_cast<const ushort *>
(decodedBa.data()), decodedBa.size() / 2);
}
case Base64Encoded8Bit: { // 5, without quotes (see 1)
return quoteUnprintableLatin1(QByteArray::fromBase64(ba));
}
case Hex2EncodedLatin1WithQuotes: { // 6, %02x encoded 8 bit Latin1 data
const QChar doubleQuote(QLatin1Char('"'));
const QByteArray decodedBa = QByteArray::fromHex(ba);
return doubleQuote + QString::fromLatin1(decodedBa) + doubleQuote;
}
case Hex4EncodedLittleEndianWithQuotes: { // 7, %04x encoded 16 bit data
const QChar doubleQuote(QLatin1Char('"'));
const QByteArray decodedBa = QByteArray::fromHex(ba);
return doubleQuote + QString::fromUtf16(reinterpret_cast<const ushort *>
(decodedBa.data()), decodedBa.size() / 2) + doubleQuote;
}
case Hex8EncodedLittleEndianWithQuotes: { // 8, %08x encoded 32 bit data
const QChar doubleQuote(QLatin1Char('"'));
const QByteArray decodedBa = QByteArray::fromHex(ba);
return doubleQuote + QString::fromUcs4(reinterpret_cast<const uint *>
(decodedBa.data()), decodedBa.size() / 4) + doubleQuote;
}
case Hex2EncodedUtf8WithQuotes: { // 9, %02x encoded 8 bit UTF-8 data
const QChar doubleQuote(QLatin1Char('"'));
const QByteArray decodedBa = QByteArray::fromHex(ba);
return doubleQuote + QString::fromUtf8(decodedBa) + doubleQuote;
}
case Hex8EncodedBigEndian: { // 10, %08x encoded 32 bit data
const QChar doubleQuote(QLatin1Char('"'));
QByteArray decodedBa = QByteArray::fromHex(ba);
for (int i = 0; i < decodedBa.size() - 3; i += 4) {
char c = decodedBa.at(i);
decodedBa[i] = decodedBa.at(i + 3);
decodedBa[i + 3] = c;
c = decodedBa.at(i + 1);
decodedBa[i + 1] = decodedBa.at(i + 2);
decodedBa[i + 2] = c;
}
return doubleQuote + QString::fromUcs4(reinterpret_cast<const uint *>
(decodedBa.data()), decodedBa.size() / 4) + doubleQuote;
}
case Hex4EncodedBigEndianWithQuotes: { // 11, %04x encoded 16 bit data
const QChar doubleQuote(QLatin1Char('"'));
QByteArray decodedBa = QByteArray::fromHex(ba);
for (int i = 0; i < decodedBa.size(); i += 2) {
char c = decodedBa.at(i);
decodedBa[i] = decodedBa.at(i + 1);
decodedBa[i + 1] = c;
}
return doubleQuote + QString::fromUtf16(reinterpret_cast<const ushort *>
(decodedBa.data()), decodedBa.size() / 2) + doubleQuote;
}
case Hex4EncodedLittleEndianWithoutQuotes: { // 12, see 7, without quotes
const QByteArray decodedBa = QByteArray::fromHex(ba);
return QString::fromUtf16(reinterpret_cast<const ushort *>
(decodedBa.data()), decodedBa.size() / 2);
}
case Hex2EncodedLocal8BitWithQuotes: { // 13, %02x encoded 8 bit UTF-8 data
const QChar doubleQuote(QLatin1Char('"'));
const QByteArray decodedBa = QByteArray::fromHex(ba);
return doubleQuote + QString::fromLocal8Bit(decodedBa) + doubleQuote;
}
case JulianDate: { // 14, an integer count
const QDate date = dateFromData(ba.toInt());
return date.toString(Qt::TextDate);
}
case MillisecondsSinceMidnight: {
const QTime time = timeFromData(ba.toInt());
return time.toString(Qt::TextDate);
}
case JulianDateAndMillisecondsSinceMidnight: {
const int p = ba.indexOf('/');
const QDate date = dateFromData(ba.left(p).toInt());
const QTime time = timeFromData(ba.mid(p + 1 ).toInt());
return QDateTime(date, time).toString(Qt::TextDate);
}
}
qDebug() << "ENCODING ERROR: " << encoding;
return QCoreApplication::translate("Debugger", "<Encoding error>");
}
template <class T>
void decodeArrayHelper(QList<WatchData> *list, const WatchData &tmplate,
const QByteArray &rawData)
{
const QByteArray ba = QByteArray::fromHex(rawData);
const T *p = (const T *) ba.data();
WatchData data;
const QByteArray exp = "*(" + gdbQuoteTypes(tmplate.type) + "*)0x";
for (int i = 0, n = ba.size() / sizeof(T); i < n; ++i) {
data = tmplate;
data.sortId = i;
data.iname += QByteArray::number(i);
data.name = QString::fromLatin1("[%1]").arg(i);
data.value = QString::number(p[i]);
data.address += i * sizeof(T);
data.exp = exp + QByteArray::number(data.address, 16);
data.setAllUnneeded();
list->append(data);
}
}
void decodeArray(QList<WatchData> *list, const WatchData &tmplate,
const QByteArray &rawData, int encoding)
{
switch (encoding) {
case Hex2EncodedInt1:
decodeArrayHelper<uchar>(list, tmplate, rawData);
break;
case Hex2EncodedInt2:
decodeArrayHelper<ushort>(list, tmplate, rawData);
break;
case Hex2EncodedInt4:
decodeArrayHelper<uint>(list, tmplate, rawData);
break;
case Hex2EncodedInt8:
decodeArrayHelper<quint64>(list, tmplate, rawData);
break;
case Hex2EncodedFloat4:
decodeArrayHelper<float>(list, tmplate, rawData);
break;
case Hex2EncodedFloat8:
decodeArrayHelper<double>(list, tmplate, rawData);
break;
default:
qDebug() << "ENCODING ERROR: " << encoding;
}
}
// Editor tooltip support
bool isCppEditor(Core::IEditor *editor)
{
using namespace CppTools::Constants;
const Core::IDocument *document= editor->document();
if (!document)
return false;
const QByteArray mimeType = document->mimeType().toLatin1();
return mimeType == C_SOURCE_MIMETYPE
|| mimeType == CPP_SOURCE_MIMETYPE
|| mimeType == CPP_HEADER_MIMETYPE
|| mimeType == OBJECTIVE_CPP_SOURCE_MIMETYPE;
}
// Return the Cpp expression, and, if desired, the function
QString cppExpressionAt(TextEditor::ITextEditor *editor, int pos,
int *line, int *column, QString *function /* = 0 */)
{
using namespace CppTools;
using namespace CPlusPlus;
*line = *column = 0;
if (function)
function->clear();
const QPlainTextEdit *plaintext = qobject_cast<QPlainTextEdit*>(editor->widget());
if (!plaintext)
return QString();
QString expr = plaintext->textCursor().selectedText();
CppModelManagerInterface *modelManager = CppModelManagerInterface::instance();
if (expr.isEmpty() && modelManager) {
QTextCursor tc(plaintext->document());
tc.setPosition(pos);
const QChar ch = editor->characterAt(pos);
if (ch.isLetterOrNumber() || ch == QLatin1Char('_'))
tc.movePosition(QTextCursor::EndOfWord);
// Fetch the expression's code.
CPlusPlus::ExpressionUnderCursor expressionUnderCursor;
expr = expressionUnderCursor(tc);
*column = tc.positionInBlock();
*line = tc.blockNumber();
} else {
const QTextCursor tc = plaintext->textCursor();
*column = tc.positionInBlock();
*line = tc.blockNumber();
}
if (function && !expr.isEmpty())
if (const Core::IDocument *document= editor->document())
if (modelManager)
*function = AbstractEditorSupport::functionAt(modelManager,
document->fileName(), *line, *column);
return expr;
}
QString cppFunctionAt(const QString &fileName, int line)
{
using namespace CppTools;
using namespace CPlusPlus;
CppModelManagerInterface *modelManager = CppModelManagerInterface::instance();
return AbstractEditorSupport::functionAt(modelManager,
fileName, line, 1);
}
//////////////////////////////////////////////////////////////////////
//
// GdbMi interaction
//
//////////////////////////////////////////////////////////////////////
void setWatchDataValue(WatchData &data, const GdbMi &item)
{
GdbMi value = item.findChild("value");
if (value.isValid()) {
int encoding = item.findChild("valueencoded").data().toInt();
data.setValue(decodeData(value.data(), encoding));
} else {
data.setValueNeeded();
}
}
void setWatchDataValueToolTip(WatchData &data, const GdbMi &mi,
int encoding)
{
if (mi.isValid())
data.setValueToolTip(decodeData(mi.data(), encoding));
}
void setWatchDataChildCount(WatchData &data, const GdbMi &mi)
{
if (mi.isValid())
data.setHasChildren(mi.data().toInt() > 0);
}
void setWatchDataValueEnabled(WatchData &data, const GdbMi &mi)
{
if (mi.data() == "true")
data.valueEnabled = true;
else if (mi.data() == "false")
data.valueEnabled = false;
}
static void setWatchDataValueEditable(WatchData &data, const GdbMi &mi)
{
if (mi.data() == "true")
data.valueEditable = true;
else if (mi.data() == "false")
data.valueEditable = false;
}
static void setWatchDataExpression(WatchData &data, const GdbMi &mi)
{
if (mi.isValid())
data.exp = mi.data();
}
static void setWatchDataAddress(WatchData &data, quint64 address, quint64 origAddress = 0)
{
if (origAddress) { // Gdb dumpers reports the dereferenced address as origAddress
data.address = origAddress;
data.referencingAddress = address;
} else {
data.address = address;
}
if (data.exp.isEmpty() && !data.dumperFlags.startsWith('$')) {
if (data.iname.startsWith("local.") && data.iname.count('.') == 1)
// Solve one common case of adding 'class' in
// *(class X*)0xdeadbeef for gdb.
data.exp = data.name.toLatin1();
else
data.exp = "*(" + gdbQuoteTypes(data.type) + "*)" + data.hexAddress();
}
}
void setWatchDataAddress(WatchData &data, const GdbMi &addressMi, const GdbMi &origAddressMi)
{
if (!addressMi.isValid())
return;
const QByteArray addressBA = addressMi.data();
if (!addressBA.startsWith("0x")) { // Item model dumpers pull tricks.
data.dumperFlags = addressBA;
return;
}
const quint64 address = addressMi.toAddress();
const quint64 origAddress = origAddressMi.toAddress();
setWatchDataAddress(data, address, origAddress);
}
static void setWatchDataSize(WatchData &data, const GdbMi &mi)
{
if (mi.isValid()) {
bool ok = false;
const unsigned size = mi.data().toUInt(&ok);
if (ok)
data.size = size;
}
}
// Find the "type" and "displayedtype" children of root and set up type.
void setWatchDataType(WatchData &data, const GdbMi &item)
{
if (item.isValid())
data.setType(item.data());
else if (data.type.isEmpty())
data.setTypeNeeded();
}
void setWatchDataDisplayedType(WatchData &data, const GdbMi &item)
{
if (item.isValid())
data.displayedType = _(item.data());
}
void parseWatchData(const QSet<QByteArray> &expandedINames,
const WatchData &data0, const GdbMi &item,
QList<WatchData> *list)
{
//qDebug() << "HANDLE CHILDREN: " << data0.toString() << item.toString();
WatchData data = data0;
bool isExpanded = expandedINames.contains(data.iname);
if (!isExpanded)
data.setChildrenUnneeded();
GdbMi children = item.findChild("children");
if (children.isValid() || !isExpanded)
data.setChildrenUnneeded();
setWatchDataType(data, item.findChild("type"));
GdbMi mi = item.findChild("editvalue");
if (mi.isValid())
data.editvalue = mi.data();
mi = item.findChild("editformat");
if (mi.isValid())
data.editformat = mi.data().toInt();
mi = item.findChild("typeformats");
if (mi.isValid())
data.typeFormats = QString::fromUtf8(mi.data());
mi = item.findChild("bitpos");
if (mi.isValid())
data.bitpos = mi.data().toInt();
mi = item.findChild("bitsize");
if (mi.isValid())
data.bitsize = mi.data().toInt();
setWatchDataValue(data, item);
setWatchDataAddress(data, item.findChild("addr"), item.findChild("origaddr"));
setWatchDataSize(data, item.findChild("size"));
setWatchDataExpression(data, item.findChild("exp"));
setWatchDataValueEnabled(data, item.findChild("valueenabled"));
setWatchDataValueEditable(data, item.findChild("valueeditable"));
setWatchDataChildCount(data, item.findChild("numchild"));
//qDebug() << "\nAPPEND TO LIST: " << data.toString() << "\n";
list->append(data);
bool ok = false;
qulonglong addressBase = item.findChild("addrbase").data().toULongLong(&ok, 0);
qulonglong addressStep = item.findChild("addrstep").data().toULongLong(&ok, 0);
// Try not to repeat data too often.
WatchData childtemplate;
setWatchDataType(childtemplate, item.findChild("childtype"));
setWatchDataChildCount(childtemplate, item.findChild("childnumchild"));
//qDebug() << "CHILD TEMPLATE:" << childtemplate.toString();
mi = item.findChild("arraydata");
if (mi.isValid()) {
int encoding = item.findChild("arrayencoding").data().toInt();
childtemplate.iname = data.iname + '.';
childtemplate.address = addressBase;
decodeArray(list, childtemplate, mi.data(), encoding);
} else {
for (int i = 0, n = children.children().size(); i != n; ++i) {
const GdbMi &child = children.children().at(i);
WatchData data1 = childtemplate;
data1.sortId = i;
GdbMi name = child.findChild("name");
if (name.isValid())
data1.name = _(name.data());
else
data1.name = QString::number(i);
GdbMi iname = child.findChild("iname");
if (iname.isValid()) {
data1.iname = iname.data();
} else {
data1.iname = data.iname;
data1.iname += '.';
data1.iname += data1.name.toLatin1();
}
if (!data1.name.isEmpty() && data1.name.at(0).isDigit())
data1.name = QLatin1Char('[') + data1.name + QLatin1Char(']');
if (addressStep) {
setWatchDataAddress(data1, addressBase);
addressBase += addressStep;
}
QByteArray key = child.findChild("key").data();
if (!key.isEmpty()) {
int encoding = child.findChild("keyencoded").data().toInt();
QString skey = decodeData(key, encoding);
if (skey.size() > 13) {
skey = skey.left(12);
skey += _("...");
}
//data1.name += " (" + skey + ")";
data1.name = skey;
}
parseWatchData(expandedINames, data1, child, list);
}
}
}
} // namespace Internal
} // namespace Debugger
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