aprantl marked 3 inline comments as done.
aprantl added inline comments.
================
Comment at: lldb/include/lldb/Symbol/SymbolFile.h:283-285
+ /// Return a hash for this symbol file, such as a dwo_id.
+ virtual llvm::Optional<uint64_t> GetSymbolHash() { return {}; }
+
----------------
labath wrote:
> Can we remove this and put a cast in
> `SymbolFileDWARF::UpdateExternalModuleListIfNeeded` instead? It looks like
> that function should check that it has really found a dwarf file (and not a
> pdb for instance) anyway...
> Can we remove this and put a cast in
> SymbolFileDWARF::UpdateExternalModuleListIfNeeded instead?
We don't have a mechanism to dynamic-cast between SymbolFiles at the moment and
I think it's difficult to add one, since it's a base class of an open-ended
plugin hierarchy. We could require all plugins to register in a global enum if
we don't care about extensibility. I also thought about each class identifying
itself via a string that is its class name, but then we couldn't implement
casting to a base-class easily.
If you have any idea for how to do this elegantly I'm more than happy to
implement it.
> It looks like that function should check that it has really found a dwarf
> file (and not a pdb for instance) anyway...
Technically, yes, but you'd need DWARF that encodes the path of a PDB to get
into that situation, so I'm not super concerned about this.
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D70272/new/
https://reviews.llvm.org/D70272
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