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In addition to a priority, cleanup the interfaces for passing this
information as well. The pattern, if given, takes priority over the
inferred one.
We only allow Existing Instances gr ... gr | pri. for now, without
pattern, as before.
Make the API compatible to 8.5 as well.
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Reporting location was not expecting a term passed to an ML tactic to
be interpreted by the ML tactic itself. Made an empirical fix to
report about the as-precise-as-possible location available.
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This makes [refine] typecheck the term only once (instead of twice),
(Qed excluded of course). Fix test-suite file for output of constraints
accordingly.
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Universe context not properly declared. Improve API
and code in declare.ml to allow declaration of universe contexts,
used by declaration of universes and constraints (separately).
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We defactorize the in_clause grammar entry to allow parsing of the "symmetry"
tactic when it has no arguments. Beforehand, the clause_dft_concl entry
accepted the empty stream, preventing the definition of symmetry as a mere
identifier.
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Universe context not properly declared. Improve API
and code in declare.ml to allow declaration of universe contexts,
used by declaration of universes and constraints (separately).
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With this command line flag one can profile ltac in files
/and/ trim the results without actually touching the files.
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Was PR#232: Fix the parsing of goal selectors.
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It seems we have no grammar rule that parses floats, so I'm
parsing an integer, but the whole machinery supports floats.
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Getting closer from before when the bug was introduced + test.
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Previously, newlines were missing if a node had no children.
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This removes a space (making the final letter of the right-aligned columns line come right before the vertical separators, rather than overlapping them), and left-aligns "tactic", as it was in Tobias' original code, which I think is easier to read. (This way, the alignment of the headers matches the alignment of the entries.)
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The previous commit did not apply the beta reduction for compatibility on the
correct goal. We rather apply it on the first generated subgoal. This fixes the
ergo contrib.
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Changes:
- data structures are purely functional (so retracting do work)
- profiling data flows towards master using the feedback bus
- master aggregates the data on printing
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calls are logged too. Using appropriate printer for reparsability of
the output.
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The problem came from the fact that the legacy beta-reduction occurring
after a rewrite was wrongly applied to the side-conditions of the
rewriting step. We restrict it to the correct goal in this patch.
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This was an overlook. There was no reason to let it in the tactics/ folder,
as is was semantically part of the Ltac implementation.
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when the rewrite lemma doesn't typecheck or does not
correspond to a relation.
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It should use evar instantiations eagerly during unification of
the lhs of the lemma, as in 8.4.
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match.""
We apply this patch to trunk so that it is integrated in 8.6.
This reverts commit 0eb08b70f0c576e58912c1fc3ef74f387ad465be.
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lib/cErrors.ml)
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For the moment, there is a Closure module in compiler-libs/ocamloptcomp.cm(x)a
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module)
For the moment, there is an Error module in compilers-lib/ocamlbytecomp.cm(x)a
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This is a reimplementation of Hugo's PR#117.
We are trying to address the problem that the name of some reduction functions
was not saying what they were doing (e.g. whd_betadeltaiota was doing let-in
reduction). Like PR#117, we are careful that no function changed semantics
without changing the names. Porting existing ML code should be a matter of
renamings a few function calls.
Also, we introduce more precise reduction flags fMATCH, fFIX, fCOFIX
collectively denominated iota.
We renamed the following functions:
Closure.betadeltaiota -> Closure.all
Closure.betadeltaiotanolet -> Closure.allnolet
Reductionops.beta -> Closure.beta
Reductionops.zeta -> Closure.zeta
Reductionops.betaiota -> Closure.betaiota
Reductionops.betaiotazeta -> Closure.betaiotazeta
Reductionops.delta -> Closure.delta
Reductionops.betalet -> Closure.betazeta
Reductionops.betadelta -> Closure.betadeltazeta
Reductionops.betadeltaiota -> Closure.all
Reductionops.betadeltaiotanolet -> Closure.allnolet
Closure.no_red -> Closure.nored
Reductionops.nored -> Closure.nored
Reductionops.nf_betadeltaiota -> Reductionops.nf_all
Reductionops.whd_betadelta -> Reductionops.whd_betadeltazeta
Reductionops.whd_betadeltaiota -> Reductionops.whd_all
Reductionops.whd_betadeltaiota_nolet -> Reductionops.whd_allnolet
Reductionops.whd_betadelta_stack -> Reductionops.whd_betadeltazeta_stack
Reductionops.whd_betadeltaiota_stack -> Reductionops.whd_all_stack
Reductionops.whd_betadeltaiota_nolet_stack -> Reductionops.whd_allnolet_stack
Reductionops.whd_betadelta_state -> Reductionops.whd_betadeltazeta_state
Reductionops.whd_betadeltaiota_state -> Reductionops.whd_all_state
Reductionops.whd_betadeltaiota_nolet_state -> Reductionops.whd_allnolet_state
Reductionops.whd_eta -> Reductionops.shrink_eta
Tacmach.pf_whd_betadeltaiota -> Tacmach.pf_whd_all
Tacmach.New.pf_whd_betadeltaiota -> Tacmach.New.pf_whd_all
And removed the following ones:
Reductionops.whd_betaetalet
Reductionops.whd_betaetalet_stack
Reductionops.whd_betaetalet_state
Reductionops.whd_betadeltaeta_stack
Reductionops.whd_betadeltaeta_state
Reductionops.whd_betadeltaeta
Reductionops.whd_betadeltaiotaeta_stack
Reductionops.whd_betadeltaiotaeta_state
Reductionops.whd_betadeltaiotaeta
They were unused and having some reduction functions perform eta is confusing
as whd_all and nf_all don't do it.
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This fixes some parsing problems when doing things like
[let n := 2 in idtac n]. See bug #4877.
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On the user side, coqtop and coqc take a list of warning names or categories
after -w. No prefix means activate the warning, a "-" prefix means deactivate
it, and "+" means turn the warning into an error. Special categories include
"all", and "default" which contains the warnings enabled by default.
We also provide a vernacular Set Warnings which takes the same flags as argument.
Note that coqc now prints warnings.
The name and category of a warning are printed with the warning itself.
On the developer side, Feedback.msg_warning is still accessible, but the
recommended way to print a warning is in two steps:
1) create it by:
let warn_my_warning =
CWarnings.create ~name:"my-warning" ~category:"my-category"
(fun args -> Pp.strbrk ...)
2) print it by:
warn_my_warning args
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using a custom feedback message in response to "Show Ltac Profile."
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Doing it explicitly because it is in another file.
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Comments
--------
- The tactic specialize conveys a somehow intuitive reasoning concept
and I would support continuing maintaining it even if the design
comes in my opinion with some oddities. (Note that the experience of
MathComp and SSReflect also suggests that specialize is an
interesting concept in itself).
There are two variants to specialize:
- specialize (H args) with H an hypothesis looks natural: we
specialize H with extra arguments and the "as pattern" clause comes
naturally as an extension of it, destructuring the result using the
pattern.
- specialize term with bindings makes the choice of fully applying the
term filling missing expressions with bindings and to then behave as
generalize. Wouldn't we like a more fine-grained approach and the
result to remain in the context?
In this second case, the "as" clause works as if the term were posed
in the context with "pose proof".
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There were three versions of injection:
1. "injection term" without "as" clause:
was leaving hypotheses on the goal in reverse order
2. "injection term as ipat", first version:
was introduction hypotheses using ipat in reverse order without
checking that the number of ipat was the size of the injection
(activated with "Unset Injection L2R Pattern Order")
3. "injection term as ipat", second version:
was introduction hypotheses using ipat in left-to-right order
checking that the number of ipat was the size of the injection
and clearing the injecting term by default if an hypothesis
(activated with "Set Injection L2R Pattern Order", default one from 8.5)
There is now:
4. "injection term" without "as" clause, new version:
introducing the components of the injection in the context in
left-to-right order using default intro-patterns "?"
and clearing the injecting term by default if an hypothesis
(activated with "Set Structural Injection")
The new versions 3. and 4. are the "expected" ones in the sense that
they have the following good properties:
- introduction in the context is in the natural left-to-right order
- "injection" behaves the same with and without "as", always
introducing the hypotheses in the goal what corresponds to the
natural expectation as the changes I made in the proof scripts for
adaptation confirm
- clear the "injection" hypothesis when an hypothesis which is the
natural expectation as the changes I made in the proof scripts for
adaptation confirm
The compatibility can be preserved by "Unset Structural Injection" or
by calling "simple injection".
The flag is currently off.
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Matthieu Sozeau
Hugo Herbelin
Pierre-Marie Pédrot
Jason Gross
Enrico Tassi
Maxime Dénès
Jason Gross
Pierre Letouzey
Cyprien Mangin
CJ Bell