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authorPhilipp Stephani <phst@google.com>2020-07-25 23:04:05 +0200
committerPhilipp Stephani <phst@google.com>2020-07-25 23:04:05 +0200
commit6355a3ec62f43c9b99d483982ff851d32dd78891 (patch)
tree2a9896b373c7e713c8ec504a464d5401e8134ab8 /lisp/emacs-lisp/edebug.el
parent609cbd63c31a21ca521507695abeda1203134c99 (diff)
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Fix subtle bug when checking liveness of module values.
We can't simply look up the Lisp object in the global reference table because an invalid local and a valid global reference might refer to the same object. Instead, we have to test the address of the global reference against the stored references. * src/emacs-module.c (module_global_reference_p): New helper function. (value_to_lisp): Use it. * test/data/emacs-module/mod-test.c (Fmod_test_invalid_store_copy): New test module function. (emacs_module_init): Export it. * test/src/emacs-module-tests.el (module--test-assertions--load-non-live-object-with-global-copy): New unit test.
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