1 files changed, 177 insertions, 0 deletions
diff --git a/src/plugins/qmltooling/qmldbg_debugger/qv4debugger.h b/src/plugins/qmltooling/qmldbg_debugger/qv4debugger.h
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index 0000000000..3a5b6080cb
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+++ b/src/plugins/qmltooling/qmldbg_debugger/qv4debugger.h
@@ -0,0 +1,177 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the QtQml module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QV4DEBUGGER_H
+#define QV4DEBUGGER_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include "qv4datacollector.h"
+#include <private/qv4debugging_p.h>
+#include <private/qv4function_p.h>
+#include <private/qv4context_p.h>
+#include <private/qv4persistent_p.h>
+
+#include <QtCore/qmutex.h>
+#include <QtCore/qwaitcondition.h>
+
+QT_BEGIN_NAMESPACE
+
+class QV4DebugJob;
+class QV4DataCollector;
+class QV4Debugger : public QV4::Debugging::Debugger
+{
+    Q_OBJECT
+public:
+    struct BreakPoint {
+        BreakPoint(const QString &fileName, int line);
+        QString fileName;
+        int lineNumber;
+    };
+
+    enum State {
+        Running,
+        Paused
+    };
+
+    enum Speed {
+        FullThrottle = 0,
+        StepOut,
+        StepOver,
+        StepIn,
+
+        NotStepping = FullThrottle
+    };
+
+    enum PauseReason {
+        PauseRequest,
+        BreakPointHit,
+        Throwing,
+        Step
+    };
+
+    QV4Debugger(QV4::ExecutionEngine *engine);
+
+    QV4::ExecutionEngine *engine() const;
+    const QV4DataCollector *collector() const;
+    QV4DataCollector *collector();
+
+    void pause();
+    void resume(Speed speed);
+
+    State state() const;
+
+    void addBreakPoint(const QString &fileName, int lineNumber,
+                       const QString &condition = QString());
+    void removeBreakPoint(const QString &fileName, int lineNumber);
+
+    void setBreakOnThrow(bool onoff);
+
+    void clearPauseRequest();
+
+    // used for testing
+    struct ExecutionState
+    {
+        QString fileName;
+        int lineNumber;
+    };
+    ExecutionState currentExecutionState() const;
+
+    QVector<QV4::StackFrame> stackTrace(int frameLimit = -1) const;
+    QVector<QV4::Heap::ExecutionContext::ContextType> getScopeTypes(int frame = 0) const;
+
+    QV4::Function *getFunction() const;
+    void runInEngine(QV4DebugJob *job);
+
+    // compile-time interface
+    void maybeBreakAtInstruction() Q_DECL_OVERRIDE;
+
+    // execution hooks
+    void enteringFunction() Q_DECL_OVERRIDE;
+    void leavingFunction(const QV4::ReturnedValue &retVal) Q_DECL_OVERRIDE;
+    void aboutToThrow() Q_DECL_OVERRIDE;
+
+    bool pauseAtNextOpportunity() const Q_DECL_OVERRIDE;
+
+signals:
+    void debuggerPaused(QV4Debugger *self, QV4Debugger::PauseReason reason);
+
+private slots:
+    void runJobUnpaused();
+
+private:
+    // requires lock to be held
+    void pauseAndWait(PauseReason reason);
+    bool reallyHitTheBreakPoint(const QString &filename, int linenr);
+    void runInEngine_havingLock(QV4DebugJob *job);
+
+    QV4::ExecutionEngine *m_engine;
+    QV4::PersistentValue m_currentContext;
+    QMutex m_lock;
+    QWaitCondition m_runningCondition;
+    State m_state;
+    Speed m_stepping;
+    bool m_pauseRequested;
+    bool m_haveBreakPoints;
+    bool m_breakOnThrow;
+
+    QHash<BreakPoint, QString> m_breakPoints;
+    QV4::PersistentValue m_returnedValue;
+
+    QV4DebugJob *m_gatherSources;
+    QV4DebugJob *m_runningJob;
+    QV4DataCollector m_collector;
+    QWaitCondition m_jobIsRunning;
+};
+
+QT_END_NAMESPACE
+
+Q_DECLARE_METATYPE(QV4Debugger::PauseReason)
+Q_DECLARE_METATYPE(QV4Debugger*)
+
+#endif // QV4DEBUGGER_H