| # Test printing roots that refer to NULL pointers. |
| |
| # Since mozilla.prettyprinters.Pointer declines to create pretty-printers |
| # for null pointers, GDB built-in printing code ends up handling them. But |
| # as of 2012-11, GDB suppresses printing pointers in replacement values: |
| # see: http://sourceware.org/ml/gdb/2012-11/msg00055.html |
| # |
| # Thus, if the pretty-printer for JS::Rooted simply returns the referent as |
| # a replacement value (which seems reasonable enough, if you want the |
| # pretty-printer to be completely transparent), and the referent is a null |
| # pointer, it prints as nothing at all. |
| # |
| # This test ensures that the JS::Rooted pretty-printer doesn't make that |
| # mistake. |
| |
| gdb.execute('set print address on') |
| |
| run_fragment('Root.null') |
| |
| assert_pretty('null', '0x0') |
