The Tor Browser / file comparison
comparison: layout/xul/tree/crashtests/730441-3.xul
layout/xul/tree/crashtests/730441-3.xul
- branch
- TOR_BUG_3246
- changeset 6
- 8bccb770b82d
equal
deleted
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replaced
| -1:000000000000 | 0:03c6df574281 |
|---|---|
| 1 <?xml version="1.0"?> | |
| 2 <!-- | |
| 3 ###!!! ASSERTION: You can't dereference a NULL nsCOMPtr with operator->().: 'mRawPtr != 0', file ../../../../dist/include/nsCOMPtr.h, line 796 | |
| 4 | |
| 5 Program received signal SIGSEGV, Segmentation fault. | |
| 6 0xb6b7463a in nsTreeContentView::SetTree (this=0xb0ba2510, aTree=0xaaecece0) at layout/xul/base/src/tree/src/nsTreeContentView.cpp:571 | |
| 7 571 boxObject->GetElement(getter_AddRefs(element)); | |
| 8 (gdb) bt 3 | |
| 9 #0 0xb6b7463a in nsTreeContentView::SetTree (this=0xb0ba2510, aTree=0xaaecece0) at layout/xul/base/src/tree/src/nsTreeContentView.cpp:571 | |
| 10 #1 0xb736c76f in NS_InvokeByIndex_P () at xpcom/reflect/xptcall/src/md/unix/xptcinvoke_gcc_x86_unix.cpp:69 | |
| 11 #2 0xb6171901 in XPCWrappedNative::CallMethod (ccx=..., mode=XPCWrappedNative::CALL_METHOD) | |
| 12 at js/src/xpconnect/src/xpcwrappednative.cpp:2722 | |
| 13 (More stack frames follow...) | |
| 14 (gdb) list 566 | |
| 15 561 nsTreeContentView::SetTree(nsITreeBoxObject* aTree) | |
| 16 562 { | |
| 17 563 ClearRows(); | |
| 18 564 | |
| 19 565 mBoxObject = aTree; | |
| 20 566 | |
| 21 567 if (aTree && !mRoot) { | |
| 22 568 // Get our root element | |
| 23 569 nsCOMPtr<nsIBoxObject> boxObject = do_QueryInterface(mBoxObject); | |
| 24 570 nsCOMPtr<nsIDOMElement> element; | |
| 25 571 boxObject->GetElement(getter_AddRefs(element)); | |
| 26 (gdb) p boxObject | |
| 27 $16 = {mRawPtr = 0x0} | |
| 28 | |
| 29 |aTree| does not implement |nsIBoxObject|, so |do_QueryInterface(mBoxObject)| | |
| 30 returns null. Then we have |null->GetElement()|. | |
| 31 --> | |
| 32 <window xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul" | |
| 33 onload="document.getElementById('tree').view.setTree({});"> | |
| 34 <tree id="tree"> | |
| 35 <treechildren/> | |
| 36 </tree> | |
| 37 </window> | |
| 38 |
