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authorAdam Joseph <adam@westernsemico.com>2022-10-25T09·23-0700
committertazjin <tazjin@tvl.su>2023-01-21T10·19+0000
commit22b9e6ff092c531ee72037ff8f4c065eaff3b839 (patch)
treeca3f063bc088e06772626d02d9b0f865edca5bd6 /doc/manual/conf-file.xml
parentab8486e5b8b12f18954d3754c1837882e30008dc (diff)
refactor(tvix/eval): administer antidote for poison r/5721
The codebase contains a lot of complexity and odd roundabout
handling for shadowing globals.  I'm pretty sure none of this is
necessary, and all of it disappears if you simply make the globals
part of the ordinary identifier resolution chain, with their own
scope up above the root scope.  Then the ordinary shadowing routines
do the right thing, and no special cases or new terminology are
required.

This commit does that.

Note by tazjin: This commit was originally abandoned when Adam decided
not to take away reviewer bandwidth for this at the time (eval was
still in a much earlier stage). As we've recently done some
significant refactoring of globals initialisation this came up again,
and it seems we can easily cover the use-cases of the poison tracking
in other ways now, so I've rebased, updated and resurrected the CL.

Co-Authored-By: Vincent Ambo <tazjin@tvl.su>
Signed-off-by: Adam Joseph <adam@westernsemico.com>
Change-Id: Ib3309a47a7b31fa5bf10466bade0d876b76ae462
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7089
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
Reviewed-by: flokli <flokli@flokli.de>
Diffstat (limited to 'doc/manual/conf-file.xml')
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