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We deprecate unspecified locality as was done for Hint.
Close #13724
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We store bound variable names instead of functions for both branches and
predicate, and we furthermore add the parameters in the node. Let bindings
are not taken into account and require an environment lookup for retrieval.
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We additionally check that occurrence 0 is invalid in simpl at,
unfold at, etc.
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This reverts commit f3642ad8bdf6d9aa1b411892e5e6815a6a75e4d5.
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Note: "hyp" was documented in Ltac Notation chapter but "var" was not.
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At this point the record in lemmas was just a stub; next commit will
stop exposing the internals of mutual information, and pave the way
for the refactoring of `Info.t` handling in the Declare interface.
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Useful for guarding calls to `unfold` or `cbv` to ensure that, e.g.,
`Opaque foo` doesn't break some automation which tries to unfold `foo`.
We have some timeouts in the strategy success file. We should not run
into issues, because we are not really testing how long these take. We
could just as well use `Timeout 60` or longer, we just want to make sure
the file dies more quickly rather than taking over 10^100 steps.
Note that this tactic does not play well with `abstract`; I have a
potentially controversial change that fixes this issue.
One of the lines in the doc comes from
https://github.com/coq/coq/pull/12129#issuecomment-619771556
Co-Authored-By: Pierre-Marie Pédrot <pierre-marie.pedrot@irif.fr>
Co-Authored-By: Théo Zimmermann <theo.zimmermann@inria.fr>
Co-Authored-By: Michael Soegtrop <7895506+MSoegtropIMC@users.noreply.github.com>
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This PR moves `Declare` to `vernac` which will hopefully allow to
unify it with `DeclareDef` and avoid exposing entry internals.
There are many tradeoffs to be made as interface and placement of
tactics is far from clear; I've tried to reach a minimally invasive
compromise:
- moved leminv to `ltac_plugin`; this is unused in the core codebase
and IMO for now it is the best place
- hook added for abstract; this should be cleaned up later
- hook added for scheme declaration; this should be cleaned up later
- separation of hints vernacular and "tactic" part should be also done
later, for now I've introduced a `declareUctx` module to avoid being
invasive there.
In particular this last point strongly suggest that for now, the best
place for `Class_tactics` would be also in `ltac`, but I've avoided
that for now too.
This partially supersedes #10951 for now and helps with #11492 .
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This still needs API cleanup but we defer it to the moment we are
ready to make the internals private.
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If we remove all the legacy proof engine stuff, that would remove the
need for the view on proof almost entirely.
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We place creation and saving of interactive proofs in the same module;
this will allow to make `proof_entry` private, improving invariants
and control over clients, and to reduce the API [for example next
commit will move abstract declaration into this module, removing the
exported ad-hoc `build_constant_by_tactic`]
Next step will be to unify all the common code in the interactive /
non-interactive case; but we need to tweak the handling of obligations
first.
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Add headers to a few files which were missing them.
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We make the primitives for backtrace-enriched exceptions canonical in
the `Exninfo` module, deprecating all other aliases.
At some point dependencies between `CErrors` and `Exninfo` were a bit
complex, after recent clean-ups the roles seem much clearer so we can
have a single place for `iraise` and `capture`.
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The manual was already saying that it was deprecated, but no warning was
emitted.
Fixes #10572
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We also remove trailing whitespace.
Script used:
```bash
for i in `find . -name '*.ml' -or -name '*.mli' -or -name '*.mlg'`; do expand -i "$i" | sponge "$i"; sed -e's/[[:space:]]*$//' -i.bak "$i"; done
```
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As documented in the feedback API.
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This is more in-line with attributes and the rest of the API, and
makes some code significantly clearer (as in `foo true false false`,
etc...)
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in favor of "simple_intropattern"
Reviewed-by: Zimmi48
Reviewed-by: ppedrot
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This is to prevent confusion with the terminology used in the grammar
of tactic in the reference manual: "intropattern" in Tactic Notation
and TACTIC EXTEND is actually bound to simple_intropattern and not to
what is called intropattern in the reference manual
After some deprecation phase, "intropattern" could be added back to
mean the "intropattern" of the reference manual.
Note that "simple_intropattern" is actually already available in
"Tactic Notation" with the correct meaning as an entry. Only
"intropattern" is misguiding.
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The stm.ml changes show that for the other classifications either the
vernac_when was ignored, or there was an assert on it forcing it to be
Now or Later depending on the vernac_type.
One may also note that the classification used in top_printers
`VtQuery,VtNow` would have failed those asserts...
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We rename modify to map [more in line with the rest of the system] and
make the endline function specific, as it is only used in one case.
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eg ![proof] becomes STATE proof
This commits still supports the old ![]
so there is redundancy:
~~~
VERNAC EXTEND Foo STATE proof
| ...
VERNAC EXTEND Foo
| ![proof] ...
~~~
with the ![] form being local to the rule and the STATE form
applying to the whole EXTEND except for the rules with a ![].
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![proof_stack] is equivalent to the old meaning of ![proof]: the body
has type `pstate:Proof_global.t option -> Proof_global.t option`
The other specifiers are for the following body types:
~~~
![open_proof] `is_ontop:bool -> pstate`
![maybe_open_proof] `is_ontop:bool -> pstate option`
![proof] `pstate:pstate -> pstate`
![proof_opt_query] `pstate:pstate option -> unit`
![proof_query] `pstate:pstate -> unit`
~~~
The `is_ontop` is only used for the warning message when declaring a
section variable inside a proof, we could also just stop warning.
The specifiers look closely related to stm classifiers, but currently
they're unconnected. Notably this means that a ![proof_query] doesn't
have to be classified QUERY.
![proof_stack] is only used by g_rewrite/rewrite whose behaviour I
don't fully understand, maybe we can drop it in the future.
For compat we may want to consider keeping ![proof] with its old
meaning and using some new name for the new meaning. OTOH fixing
plugins to be stricter is easier if we change it as the errors tell us
where it's used.
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Typically instead of [start_proof : ontop:Proof_global.t option -> bla ->
Proof_global.t] we have [start_proof : bla -> Proof_global.pstate] and
the pstate is pushed on the stack by a caller around the
vernacentries/mlg level.
Naming can be a bit awkward, hopefully it can be improved (maybe in a
followup PR).
We can see some patterns appear waiting for nicer combinators, eg in
mlg we often only want to work with the current proof, not the stack.
Behaviour should be similar modulo bugs, let's see what CI says.
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To prevent confusion, forbidding a mix of the "injection term as pat1
... patn" and of the "injection term as [= pat1 ... patn]" syntax: If
a "[= ...]" occurs, this should be a singleton list of patterns.
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We add state handling to tactics.
TODO:
- [rewrite] `add_morphism_infer` creates problems as it opens a proof.
- [g_obligations] with_tac
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Kernel should be mostly correct, higher levels do random stuff at
times.
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We remove all calls to `Flags.is_program_mode` except one (to compute
the default value of the attribute). Everything else is passed
explicitely, and we remove the special logic in the interpretation loop
to set/unset the flag.
This is especially important since the value of the flag has an impact on
proof modes, so on the separation of parsing and execution phases.
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This is a pre-requisite to use automated formatting tools such as
`ocamlformat`, also, there were quite a few places where the comments
had basically no effect, thus it was confusing for the developer.
p.s: Reading some comments was a lot of fun :)
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We group the extension API and datatypes under `Vernacextend`.
This means that the base plugin dependency is now `coq.vernac` from
`coq.stm`.
This is quite important as for example the LSP server won't like to
link the STM in.
LTAC still depends on the STM by means of the ltac_profile part tho.
The next step could be to move the extension point below `Vernacexpr`.
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This provides several advantages to people serializing tactic
scripts. Appearance of the involved constructors is common enough as
to bother to submit this PR.
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I think for instance the new code in this diff is cleaner and more
systematic:
~~~diff
VERNAC COMMAND EXTEND VernacDeclareTacticDefinition
-| [ "Ltac" ne_ltac_tacdef_body_list_sep(l, "with") ] => {
+| #[ deprecation; locality; ] [ "Ltac" ne_ltac_tacdef_body_list_sep(l, "with") ] => {
VtSideff (List.map (function
| TacticDefinition ({CAst.v=r},_) -> r
| TacticRedefinition (qid,_) -> qualid_basename qid) l), VtLater
} -> {
- let deprecation, locality = Attributes.(parse Notations.(deprecation ++ locality) atts) in
Tacentries.register_ltac (Locality.make_module_locality locality) ?deprecation l;
}
END
~~~
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Commands need to request the attributes they use, with the API
encouraging them to error on unsupported attributes.
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Almost all of ml4 were removed in the process. The only remaining files
are in the test-suite and probably need a bit of fiddling with coq_makefile,
and there only two really remaning ml4 files containing code.
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