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Lintian found some spelling errors in the Debian packaging for coq. Fix
them most places they appear in the current source. (Don't change
documentation anchor names, as that would invalidate external
deeplinks.)
This also fixes a bug in coqdoc: prior to this commit, coqdoc would
highlight `instanciate` but not `instantiate`.
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Unused since fd7f056b155b2ebaafa3251a3c136117ebefc3e3.
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- move_location to proofs/logic.
- intro_pattern_naming to Namegen.
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We remove most of what was deprecated in `Term`. Now, `intf` and
`kernel` are almost deprecation-free, tho I am not very convinced
about the whole `Term -> Constr` renaming but I'm afraid there is no
way back.
Inconsistencies with the constructor policy (see #6440) remain along
the code-base and I'm afraid I don't see a plan to reconcile them.
The `Sorts` deprecation is hard to finalize, opening `Sorts` is not a
good idea as someone added a `List` module inside it.
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We address the easy ones, but they should probably be all removed.
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longer use camlp4.
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by doing the same thing as `zify_nat` does for `nat.pred`.
This fixes #6602.
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Moving at the same to a passing "env sigma" style rather than passing
"gl". Not that it is strictly necessary, but since we had to move
functions taking only a "sigma" to functions taking also a "env", we
eventually adopted the "env sigma" style. (The "gl" style would have
been as good.)
This answers wish #4717.
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148)
For compatibility, this extra feature of omega could be disabled via
Unset Omega UseLocalDefs.
Caveat : for now, real let-ins inside goals or hyps aren't handled, use
some "cbv zeta" reduction if you want to get rid of them. And context
definitions whose types aren't Z or nat are ignored, some manual "unfold"
are still mandatory if expanding these definitions will help omega.
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The old algorithm was relying on list membership, which is O(n). This was
nefarious for terms with many binders. We use instead sets in O(log n).
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Turn some "simpl" into "compute". Also do the same for the few
"simpl (Z.of_nat ...)". This way, definition like Z.max are properly
reduced, and moreover zify isn't sensible anymore to the
"Arguments Z.of_nat : simpl never" that some user want (see also #5039).
Unfortunately, the compute we're using now still honor the "Opaque"
declarations, so a "Opaque Z.max" will block things again (see also #5374).
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Reminder of (some of) the reasons for removal:
- Despite the claim in sigma.mli, it does *not* prevent evar
leaks, something like:
fun env evd ->
let (evd',ev) = new_evar env evd in
(evd,ev)
will typecheck even with Sigma-like type annotations (with a proof of
reflexivity)
- The API stayed embryonic. Even typing functions were not ported to
Sigma.
- Some unsafe combinators (Unsafe.tclEVARS) were replaced with slightly
less unsafe ones (e.g. s_enter), but those ones were not marked unsafe
at all (despite still being so).
- There was no good story for higher order functions manipulating evar
maps. Without higher order, one can most of the time get away with
reusing the same name for the updated evar map.
- Most of the code doing complex things with evar maps was using unsafe
casts to sigma. This code should be fixed, but this is an orthogonal
issue.
Of course, this was showing a nice and elegant use of GADTs, but the
cost/benefit ratio in practice did not seem good.
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As per https://github.com/coq/coq/pull/716#issuecomment-305140839
Partially using
```bash
git grep --name-only 'anomaly\s*\(~label:"[^"]*"\s*\)\?\(Pp.\)\?(\(\(Pp.\)\?str\)\?\s*".*[^\.!]")' | xargs sed s'/\(anomaly\s*\(~label:"[^"]*"\s*\)\?\(Pp.\)\?(\(\(Pp.\)\?str\)\?\s*".*\s*[^\.! ]\)\s*")/\1.")/g' -i
```
and
```bash
git grep --name-only ' !"' | xargs sed s'/ !"/!"/g' -i
```
The rest were manually edited by looking at the results of
```bash
git grep anomaly | grep '\.ml' | grep -v 'anomaly\s*\(~label:"[^"]*"\s*\)\?\(Pp\.\)\?(\(\(Pp.\)\?str\)\?\s*".*\(\.\|!\)")' | grep 'anomaly\($\|[^_]\)' | less
```
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This fixes [bug #5019](https://coq.inria.fr/bugs/show_bug.cgi?id=5019),
"[zify] loops on dependent types"; before, we would see a `Z.of_nat (S
?k)` which could not be turned into `Z.succ (Z.of_nat k)`, add a
hypothesis of the shape `0 <= Z.of_nat (S k)`, turn that into a
hypothesis of the shape `0 <= Z.succ (Z.of_nat k)`, and loop forever on
this.
This may not be the "right" fix (there may be cases where `zify` should
succeed where it still fails with this change), but this is a pure
bugfix in the sense that the only places where it changes the behavior
of `zify` are the places where, previously, `zify` looped forever.
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Two issues in one:
- some focused_simpl were called on the wrong locations
- some focused_simpl were done on whole equations
In the two cases, this could be bad if "simpl" goes too far
with respect to what omega expects: later calls to "occurrence"
might fail. This may happen for instance if an atom isn't a variable,
but a let-in (b:=5:Z in the example).
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Constrintern.pf_global returns a global_reference, not a constr,
adapt plugins accordingly, properly registering universes where
necessary.
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This is the continuation of #244, we now deprecate `CErrors.error`,
the single entry point in Coq is `user_err`.
The rationale is to allow for easier grepping, and to ease a future
cleanup of error messages. In particular, we would like to
systematically classify all error messages raised by Coq and be sure
they are properly documented.
We restore the two functions removed in #244 to improve compatibility,
but mark them deprecated.
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We move Coqlib to library in preparation for the late binding of
Gallina-level references. Placing `Coqlib` in `library/` is convenient
as some components such as pretyping need to depend on it.
By moving we lose the ability to locate references by syntactic
abbreviations, but IMHO it makes to require ML code to refer to
a true constant instead of an abbreviation/notation.
Unfortunately this change means that we break the `Coqlib`
API (providing a compatibility function is not possible), however we
do so for a good reason.
The main changes are:
- move `Coqlib` to `library/`.
- remove reference -> term from `Coqlib`. In particular, clients will
have different needs with regards to universes/evar_maps, so we
force them to call the (not very safe) `Universes.constr_of_global`
explicitly so the users are marked.
- move late binding of impossible case from `Termops` to
`pretying/Evarconv`. Remove hook.
- `Coqlib.find_reference` doesn't support syntactic abbreviations
anymore.
- remove duplication of `Coqlib` code in `Program`.
- remove duplication of `Coqlib` code in `Ltac.Rewrite`.
- A special note about bug 5066 and commit 6e87877 . This case
illustrates the danger of duplication in the code base; the solution
chosen there was to transform the not-found anomaly into an error
message, however the general policy was far from clear. The long
term solution is indeed make `find_reference` emit `Not_found` and
let the client handle the error maybe non-fatally. (so they can test
for constants.
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resolution trace
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Inspired by https://coq.inria.fr/bugs/show_bug.cgi?id=5229 , which
this PR solves, I propose to remove support for non-synchronous
options.
It seems the few uses of `optsync = false` we legacy and shouldn't
have any impact.
Moreover, non synchronous options may create particularly tricky
situations as for instance, they won't be propagated to workers.
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For now we only normalize sorts, and we leave instances for the next
commit.
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This is cumbersome, because now code may fail at link time if it's not
referring to the correct module name. Therefore, one has to add corresponding
open statements a the top of every file depending on a Ltac module. This
includes seemingly unrelated files that use EXTEND statements.
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Now they are useless because all of the primitives are (should?) be
evar-insensitive.
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Benjamin Barenblat
Pierre-Marie Pédrot
Gaëtan Gilbert
Emilio Jesus Gallego Arias
Maxime Dénès
Gaëtan Gilbert
Théo Zimmermann
Jim Fehrle
Joachim Breitner
Hugo Herbelin
Pierre Letouzey
Guillaume Melquiond
Matej Košík
Jason Gross
Matthieu Sozeau