[lldb-dev] [Bug 32477] New: Expose ValueObject::Clone at the SB API

via lldb-dev lldb-dev at lists.llvm.org
Thu Mar 30 13:14:23 PDT 2017


            Bug ID: 32477
           Summary: Expose ValueObject::Clone at the SB API
           Product: lldb
           Version: unspecified
          Hardware: PC
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: All Bugs
          Assignee: lldb-dev at lists.llvm.org
          Reporter: tberghammer at google.com
                CC: llvm-bugs at lists.llvm.org

When writing a new synthetic child provider it is often useful to return an
existing ValueObject (SBValue) belonging to some internal data member as a
synthetic child (e.g. the internal pointer inside a unique_ptr).

The current API provides an easy way for doing it (you can access the SBValue
and then return it) but provides no way to change the name of the returned
value object meaning that the returned child will have a strange name (e.g.
_M_ptr). We should have a way to create a synthetic child from an existing
SBValue with a new name.

Note: We should *not* expose ValueObject::SetName as an SB API because that
function should *not* be called from a synthetic child provider as it changes
the name of the underlying non-synthetic child as well.

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