Mark Shannon added the comment: The interaction between bdb/pdb and the line number table is via the frame.f_lineno attribute.
Allowing signed offsets changes the one-to-one line muber => bytecode offset relation into a one-to-many relation. Reading frame.f_lineno is not an issue as each bytecode offset will always refer to exactly one line number. Setting frame.f_lineno requires some thought as each line number could potentially refer to several bytecode offsets. However, the proposed patch retains the one-to-one relation, as the test in the while statement is merely moved, not duplicated. I am reluctant to change frame_setlineno() until there really is a one-to-many relation as it will be untestable. Once a one-to-many relation exists (e.g. duplicating finally blocks to avoid 'pseudo excpetions') then frame_setlineno should be modified (and tests added) ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue16956> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
