LCOV - code coverage report
Current view: directory - toolkit/devtools/debugger - nsJSInspector.cpp (source / functions) Found Hit Coverage
Test: app.info Lines: 31 27 87.1 %
Date: 2012-06-02 Functions: 9 9 100.0 %

       1                 : /* -*-  Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2; -*- */
       2                 : /* ***** BEGIN LICENSE BLOCK *****
       3                 :  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
       4                 :  *
       5                 :  * The contents of this file are subject to the Mozilla Public License Version
       6                 :  * 1.1 (the "License"); you may not use this file except in compliance with
       7                 :  * the License. You may obtain a copy of the License at
       8                 :  * http://www.mozilla.org/MPL/
       9                 :  *
      10                 :  * Software distributed under the License is distributed on an "AS IS" basis,
      11                 :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
      12                 :  * for the specific language governing rights and limitations under the
      13                 :  * License.
      14                 :  *
      15                 :  * The Original Code is mozilla.org code.
      16                 :  *
      17                 :  * The Initial Developer of the Original Code is
      18                 :  * The Mozilla Foundation <http://www.mozilla.org/>.
      19                 :  * Portions created by the Initial Developer are Copyright (C) 2009-2011
      20                 :  * the Initial Developer. All Rights Reserved.
      21                 :  *
      22                 :  * Contributor(s):
      23                 :  *  Dave Camp <dcamp@mozilla.com>
      24                 :  *
      25                 :  * Alternatively, the contents of this file may be used under the terms of
      26                 :  * either the GNU General Public License Version 2 or later (the "GPL"), or
      27                 :  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      28                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      29                 :  * of those above. If you wish to allow use of your version of this file only
      30                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      31                 :  * use your version of this file under the terms of the MPL, indicate your
      32                 :  * decision by deleting the provisions above and replace them with the notice
      33                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      34                 :  * the provisions above, a recipient may use your version of this file under
      35                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      36                 :  *
      37                 :  * ***** END LICENSE BLOCK ***** */
      38                 : 
      39                 : #include "nsJSInspector.h"
      40                 : #include "nsIXPConnect.h"
      41                 : #include "nsIJSContextStack.h"
      42                 : #include "nsThreadUtils.h"
      43                 : #include "jsapi.h"
      44                 : #include "jsgc.h"
      45                 : #include "jsfriendapi.h"
      46                 : #include "jsdbgapi.h"
      47                 : #include "mozilla/ModuleUtils.h"
      48                 : #include "nsServiceManagerUtils.h"
      49                 : #include "nsMemory.h"
      50                 : 
      51                 : #define JSINSPECTOR_CONTRACTID \
      52                 :   "@mozilla.org/jsinspector;1"
      53                 : 
      54                 : #define JSINSPECTOR_CID \
      55                 : { 0xec5aa99c, 0x7abb, 0x4142, { 0xac, 0x5f, 0xaa, 0xb2, 0x41, 0x9e, 0x38, 0xe2 } }
      56                 : 
      57                 : namespace mozilla {
      58                 : namespace jsinspector {
      59                 : 
      60              92 : NS_GENERIC_FACTORY_CONSTRUCTOR(nsJSInspector)
      61                 : 
      62            1064 : NS_IMPL_ISUPPORTS1(nsJSInspector, nsIJSInspector)
      63                 : 
      64              46 : nsJSInspector::nsJSInspector() : mNestedLoopLevel(0)
      65                 : {
      66              46 : }
      67                 : 
      68              46 : nsJSInspector::~nsJSInspector()
      69                 : {
      70              46 : }
      71                 : 
      72                 : NS_IMETHODIMP
      73             102 : nsJSInspector::EnterNestedEventLoop(PRUint32 *out)
      74                 : {
      75                 :   nsresult rv;
      76                 :   nsCOMPtr<nsIJSContextStack> stack =
      77             204 :     do_GetService("@mozilla.org/js/xpc/ContextStack;1", &rv);
      78             102 :   NS_ENSURE_SUCCESS(rv, rv);
      79                 : 
      80             102 :   PRUint32 nestLevel = ++mNestedLoopLevel;
      81             102 :   if (NS_SUCCEEDED(stack->Push(nsnull))) {
      82            1379 :     while (NS_SUCCEEDED(rv) && mNestedLoopLevel >= nestLevel) {
      83            1175 :       if (!NS_ProcessNextEvent())
      84               0 :         rv = NS_ERROR_UNEXPECTED;
      85                 :     }
      86                 : 
      87                 :     JSContext *cx;
      88             102 :     stack->Pop(&cx);
      89             102 :     NS_ASSERTION(cx == nsnull, "JSContextStack mismatch");
      90                 :   } else {
      91               0 :     rv = NS_ERROR_FAILURE;
      92                 :   }
      93                 : 
      94             102 :   NS_ASSERTION(mNestedLoopLevel <= nestLevel,
      95                 :                "nested event didn't unwind properly");
      96                 : 
      97             102 :   if (mNestedLoopLevel == nestLevel)
      98               0 :     --mNestedLoopLevel;
      99                 : 
     100             102 :   *out = mNestedLoopLevel;
     101             102 :   return rv;
     102                 : }
     103                 : 
     104                 : NS_IMETHODIMP
     105             102 : nsJSInspector::ExitNestedEventLoop(PRUint32 *out)
     106                 : {
     107             102 :   if (mNestedLoopLevel > 0) {
     108             102 :     --mNestedLoopLevel;
     109                 :   } else {
     110               0 :     return NS_ERROR_FAILURE;
     111                 :   }
     112                 : 
     113             102 :   *out = mNestedLoopLevel;
     114                 : 
     115             102 :   return NS_OK;
     116                 : }
     117                 : 
     118                 : NS_IMETHODIMP
     119               7 : nsJSInspector::GetEventLoopNestLevel(PRUint32 *out)
     120                 : {
     121               7 :   *out = mNestedLoopLevel;
     122               7 :   return NS_OK;
     123                 : }
     124                 : 
     125                 : }
     126                 : }
     127                 : 
     128                 : NS_DEFINE_NAMED_CID(JSINSPECTOR_CID);
     129                 : 
     130                 : static const mozilla::Module::CIDEntry kJSInspectorCIDs[] = {
     131                 :   { &kJSINSPECTOR_CID, false, NULL, mozilla::jsinspector::nsJSInspectorConstructor },
     132                 :   { NULL }
     133                 : };
     134                 : 
     135                 : static const mozilla::Module::ContractIDEntry kJSInspectorContracts[] = {
     136                 :   { JSINSPECTOR_CONTRACTID, &kJSINSPECTOR_CID },
     137                 :   { NULL }
     138                 : };
     139                 : 
     140                 : static const mozilla::Module kJSInspectorModule = {
     141                 :   mozilla::Module::kVersion,
     142                 :   kJSInspectorCIDs,
     143                 :   kJSInspectorContracts
     144                 : };
     145                 : 
     146                 : NSMODULE_DEFN(jsinspector) = &kJSInspectorModule;

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