labath added a comment.
> When such an error occurs, it is unlikely to be an lldb bug, or
> data-formatter bug. One can come up with a data structure for which reading a
> child element would require complete debug info, but reading the # of child
> elements need not require complete debug info (there could be an instance
> variable storing the size). Another could be that a child is improperly
> initialized but the data structure itself is properly initialized.
Ok, that makes sense. No objections from my side.
================
Comment at: source/API/SBValue.cpp:1273
@@ -1272,3 +1272,3 @@
{
uint32_t num_children = 0;
----------------
You can replace this by `return GetNumChildren(UINT32_MAX);`
http://reviews.llvm.org/D13778
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