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Fix crash when closing master with children and grandchildren

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In some cases, it is possible that the BufferPositionMap has
dangling pointers. We thus check whether the Buffer is loaded
before accessing it.

Fixes: #10766
(cherry picked from commit 4f50cbcfe4)
This commit is contained in:
Juergen Spitzmueller 2017-09-28 09:06:33 +02:00
parent 9df59aac63
commit a18ad654e8
1 changed files with 6 additions and 2 deletions
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8
src/Buffer.cpp
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@ -3720,8 +3720,12 @@ void Buffer::listMacroNames(MacroNameSet & macros) const
// loop over children
Impl::BufferPositionMap::iterator it = d->children_positions.begin();
Impl::BufferPositionMap::iterator end = d->children_positions.end();
for (; it != end; ++it)
it->first->listMacroNames(macros);
for (; it != end; ++it) {
Buffer * child = const_cast<Buffer *>(it->first);
// The buffer might have been closed (see #10766).
if (theBufferList().isLoaded(child))
child->listMacroNames(macros);
}
// call parent
Buffer const * const pbuf = d->parent();