kjs/debugger.cpp

   1 // -*- c-basic-offset: 2 -*-
   2 /*
   3  *  This file is part of the KDE libraries
   4  *  Copyright (C) 1999-2001 Harri Porten (porten@kde.org)
   5  *  Copyright (C) 2001 Peter Kelly (pmk@post.com)
   6  *
   7  *  This library is free software; you can redistribute it and/or
   8  *  modify it under the terms of the GNU Lesser General Public
   9  *  License as published by the Free Software Foundation; either
  10  *  version 2 of the License, or (at your option) any later version.
  11  *
  12  *  This library is distributed in the hope that it will be useful,
  13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  *  Lesser General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU Lesser General Public
  18  *  License along with this library; if not, write to the Free Software
  19  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  20  *
  21  */
  22
  23 #include "config.h"
  24 #include "debugger.h"
  25
  26 #include "JSGlobalObject.h"
  27 #include "internal.h"
  28 #include "ustring.h"
  29
  30 using namespace KJS;
  31
  32 // ------------------------------ Debugger -------------------------------------
  33
  34 namespace KJS {
  35   struct AttachedGlobalObject
  36   {
  37   public:
  38     AttachedGlobalObject(JSGlobalObject* o, AttachedGlobalObject* ai) : globalObj(o), next(ai) { ++Debugger::debuggersPresent; }
  39     ~AttachedGlobalObject() { --Debugger::debuggersPresent; }
  40     JSGlobalObject* globalObj;
  41     AttachedGlobalObject* next;
  42   };
  43
  44 }
  45
  46 int Debugger::debuggersPresent = 0;
  47
  48 Debugger::Debugger()
  49 {
  50   rep = new DebuggerImp();
  51 }
  52
  53 Debugger::~Debugger()
  54 {
  55   detach(0);
  56   delete rep;
  57 }
  58
  59 void Debugger::attach(JSGlobalObject* globalObject)
  60 {
  61   Debugger* other = globalObject->debugger();
  62   if (other == this)
  63     return;
  64   if (other)
  65     other->detach(globalObject);
  66   globalObject->setDebugger(this);
  67   rep->globalObjects = new AttachedGlobalObject(globalObject, rep->globalObjects);
  68 }
  69
  70 void Debugger::detach(JSGlobalObject* globalObj)
  71 {
  72   // iterate the addresses where AttachedGlobalObject pointers are stored
  73   // so we can unlink items from the list
  74   AttachedGlobalObject **p = &rep->globalObjects;
  75   AttachedGlobalObject *q;
  76   while ((q = *p)) {
  77     if (!globalObj || q->globalObj == globalObj) {
  78       *p = q->next;
  79       q->globalObj->setDebugger(0);
  80       delete q;
  81     } else
  82       p = &q->next;
  83   }
  84
  85   if (globalObj)
  86     latestExceptions.remove(globalObj);
  87   else
  88     latestExceptions.clear();
  89 }
  90
  91 bool Debugger::hasHandledException(ExecState *exec, JSValue *exception)
  92 {
  93     if (latestExceptions.get(exec->dynamicGlobalObject()).get() == exception)
  94         return true;
  95
  96     latestExceptions.set(exec->dynamicGlobalObject(), exception);
  97     return false;
  98 }
  99
 100 bool Debugger::sourceParsed(ExecState*, int /*sourceId*/, const UString &/*sourceURL*/,
 101                            const UString &/*source*/, int /*startingLineNumber*/, int /*errorLine*/, const UString & /*errorMsg*/)
 102 {
 103   return true;
 104 }
 105
 106 bool Debugger::sourceUnused(ExecState*, int /*sourceId*/)
 107 {
 108   return true;
 109 }
 110
 111 bool Debugger::exception(ExecState*, int /*sourceId*/, int /*lineno*/,
 112                          JSValue* /*exception */)
 113 {
 114   return true;
 115 }
 116
 117 bool Debugger::atStatement(ExecState*, int /*sourceId*/, int /*firstLine*/,
 118                            int /*lastLine*/)
 119 {
 120   return true;
 121 }
 122
 123 bool Debugger::callEvent(ExecState*, int /*sourceId*/, int /*lineno*/,
 124                          JSObject* /*function*/, const List &/*args*/)
 125 {
 126   return true;
 127 }
 128
 129 bool Debugger::returnEvent(ExecState*, int /*sourceId*/, int /*lineno*/,
 130                            JSObject* /*function*/)
 131 {
 132   return true;
 133 }
 134