https://github.com/labath commented:
I think this is a very interesting patch and, at some point, I wanted to do
something similar as well. At the same time, I am somewhat worried about the
performance impact of the extra lookups.
I think we may want to implement this in a slightly different matter: find the
unique definition DIE for the given type (we use that concept when parsing
types) and then search for child inside that -- instead of searching through
all (possibly one per CU) definitions of that type.
However, before we go down that path, I want to note that something like what
you want is already possible using the python API:
```
(lldb) target var Vars::static_constexpr
error: can't find global variable 'Vars::static_constexpr'
(lldb) script
lldb.target.FindFirstType("Vars").GetStaticFieldWithName("static_constexpr").GetConstantValue(lldb.target)
(const int) static_constexpr = 2
```
It would still be nice if the "target variable" command worked as well, but:
- I'm a little less concerned about that given that it works for dwarf v5
(clang default)
- you should be using the python API (instead of expression evaluation) in the
data formatter anyway, as it's faster and more reliable
https://github.com/llvm/llvm-project/pull/111859
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