layout/xul/tree/crashtests/730441-1.xul@deefc01c0e14
layout/xul/tree/crashtests/730441-1.xul
Thu, 15 Jan 2015 21:03:48 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 15 Jan 2015 21:03:48 +0100
- branch
- TOR_BUG_9701
- changeset 11
- deefc01c0e14
- permissions
- -rw-r--r--
Integrate friendly tips from Tor colleagues to make (or not) 4.5 alpha 3;
This includes removal of overloaded (but unused) methods, and addition of
a overlooked call to DataStruct::SetData(nsISupports, uint32_t, bool.)
1 <?xml version="1.0"?>
2 <!--
3 Program received signal SIGSEGV, Segmentation fault.
4 0xb6457185 in nsIContent::SetAttr (this=0x0, aNameSpaceID=0, aName=0xb0cb064c, aValue=..., aNotify=1) at ../../dist/include/nsIContent.h:285
5 285 return SetAttr(aNameSpaceID, aName, nsnull, aValue, aNotify);
6 (gdb) p this
7 $6 = (nsIContent * const) 0x0
8 (gdb) bt 3
9 #0 0xb6457185 in nsIContent::SetAttr (this=0x0, aNameSpaceID=0, aName=0xb0cb064c, aValue=..., aNotify=1) at ../../dist/include/nsIContent.h:285
10 #1 0xb6b72072 in nsTreeColumns::RestoreNaturalOrder (this=0xaaf83cc0) at layout/xul/base/src/tree/src/nsTreeColumns.cpp:605
11 #2 0xb736c76f in NS_InvokeByIndex_P () at xpcom/reflect/xptcall/src/md/unix/xptcinvoke_gcc_x86_unix.cpp:69
12 (More stack frames follow...)
13 (gdb) frame 1
14 #1 0xb6b72072 in nsTreeColumns::RestoreNaturalOrder (this=0xaaf83cc0) at layout/xul/base/src/tree/src/nsTreeColumns.cpp:605
15 605 child->SetAttr(kNameSpaceID_None, nsGkAtoms::ordinal, ordinal, PR_TRUE);
16 (gdb) list
17 600 PRUint32 numChildren = colsContent->GetChildCount();
18 601 for (PRUint32 i = 0; i < numChildren; ++i) {
19 602 nsIContent *child = colsContent->GetChildAt(i);
20 603 nsAutoString ordinal;
21 604 ordinal.AppendInt(i);
22 605 child->SetAttr(kNameSpaceID_None, nsGkAtoms::ordinal, ordinal, PR_TRUE);
23 606 }
24 (gdb) p child
25 $7 = (nsIContent *) 0x0
27 First loop iteration: |child->SetAttr()| dispatches "DOMAttrModified" event.
28 Event listener removes next column. Second loop iteration: |colsContent->GetChildAt(i)|
29 returns null. Then we have |null->SetAttr()|.
30 -->
31 <window xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
32 onload="run();">
33 <tree id="tree">
34 <treecols>
35 <treecol id="col1"/>
36 <treecol id="col2"/>
37 </treecols>
38 <treechildren/>
39 </tree>
40 <script type="text/javascript"><![CDATA[
41 function listener() {
42 var col2 = document.getElementById("col2");
43 col2.parentNode.removeChild(col2);
44 }
46 function run() {
47 var col1 = document.getElementById("col1");
48 col1.addEventListener("DOMAttrModified", listener, true);
49 var tree = document.getElementById("tree");
50 tree.columns.restoreNaturalOrder();
51 }
52 ]]></script>
53 </window>
