Undocumented lua_getstack() ar.i_ci behavior
- From: Paul Du Bois <dubois@xxxxxxxxxxxxxx>
- To: luajit@xxxxxxxxxxxxx
- Date: Tue, 19 Nov 2013 15:11:59 -0800
Background: To fix some corner cases in our lua debugger, I need to do
some probing of stack frames to detect tail calls (as previously discussed
on-list). While digging through the code trying to figure out how to do an
O(n) count of stack frames, I ran across behavior where lua_getstack() on
failure returns the frame count in ar.i_ci.
Is it likely that this functionality will remain in future revisions of
luajit?
Thanks,
paul
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