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only used to allow a module to be ended before the summaries were
restored what can be solved by moving upwards the place where the
summaries are restored).
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term, its type is not the smallest one - actually, we would have to
reduce the term too but it would be more costly).
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12274 85f007b7-540e-0410-9357-904b9bb8a0f7
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very useful in practice but as soon as let-in's were not forbidden in
the internal data structure, better to do it. Moreover, this gets
closer to the view were inductive definitions are uniformly built from
"contexts". (checker not changed!)
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inference (see file failure/evar1.v) + fix of some CUMUL problems that
were in the wrong direction. We assume for the fix that ill-typed
unification problems come from subtyping where we don't know yet if a
coercion has to be inserted or not, and hence are of the CUMUL
form. More on suspending problems of the form ?n <= Type or Prop <= ?n
has to be done yet.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12268 85f007b7-540e-0410-9357-904b9bb8a0f7
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in commit r12265. Add a few synonyms back in Libnames/Nameops to
maintain some minimal compatibility.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12267 85f007b7-540e-0410-9357-904b9bb8a0f7
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(uniformisation of function names, classification). One of the most
visible change is the renaming of section_path into full_path (the
use of name section was obsolete due to the module system, but I
don't know if the new name is the best chosen one - especially it
remains some "sp" here and there).
- Simplification of the interface of classify_object (first argument dropped).
- Simplification of the code for vernac keyword "End".
- Other small cleaning or dead code removal.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12265 85f007b7-540e-0410-9357-904b9bb8a0f7
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- add coqtop option "-compat X.Y" so as to provide compatibility with
previous versions of Coq (of course, this requires to take care of
providing flags for controlling changes of behaviors!),
- add support for option names made of an arbitrary length of words
(instead of one, two or three words only),
- add options for recovering 8.2 behavior for discriminate, tauto,
evar unification ("Set Tactic Evars Pattern Unification", "Set
Discriminate Introduction", "Set Intuition Iff Unfolding").
Update of .gitignore
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predicate called from proof refiner was failing because it was not
aware of evars instantiation; I added a nf_evar in 8.2 branch but for
the trunk, I propose to remove the elimination predicate
well-formation test; we therefore assume that tactics build correct
elimination predicates in Case, is it not too much demanding?).
- Seized the opportunity to remove dead kernel code about non dependent
elimination predicates (all predicates are stored dependent by
default since a few years now).
- Anecdotic complement to commit 12229 (removal of obsolete comment).
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12241 85f007b7-540e-0410-9357-904b9bb8a0f7
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more often but respects the spec better. The changes in the stdlib are
reduced to adding a few explicit [unfold]s in FMapFacts (exact was doing
conversion with delta on open terms in that case).
Also fix a minor bug in typeclasses not seeing typeclass evars when
their type was a (defined) evar itself.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12238 85f007b7-540e-0410-9357-904b9bb8a0f7
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inverting a recursive constant with dependent K-parameters).
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12233 85f007b7-540e-0410-9357-904b9bb8a0f7
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ProjectVar is a constant constructor (anyway, use of _ for constant
constructor was here by mistake).
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12232 85f007b7-540e-0410-9357-904b9bb8a0f7
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agreement with wish #2117 (pattern unification of evars remained
deactivated for 3 years because of incompatibilities with eauto [see
commit 9234]; thanks to unification flags, it can be activated for
apply w/o changing eauto).
Also add test for bug #2123 (see commit 12228).
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evar is dependent or not (solve bug #2123).
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12228 85f007b7-540e-0410-9357-904b9bb8a0f7
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had wrong type). At least two problems remain:
- projection involving evar should check the type are compatible,
- instances of filtered evars should not be shrinked as all values are
needed to ensure the well-typedness of the instanciated restricted evars.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12226 85f007b7-540e-0410-9357-904b9bb8a0f7
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traînaient un peu partout dans le code depuis la fusion d'evar_map et
evar_defs. Début du travail d'uniformisation des noms donnés aux
evar_defs à travers le code.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12224 85f007b7-540e-0410-9357-904b9bb8a0f7
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structures)
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selection of occurrences.
We use a new function [unify_to_subterm_all] to return all occurrences
of a lemma and produce the rewrite depending on a new [conditions] option
that controls if we must rewrite one or all occurrences and if the side
conditions should be solved or not for a single rewrite to be successful.
[rewrite*] will rewrite the first occurrence whose side-conditions are
solved while [autorewrite*] will rewrite all occurrences whose
side-conditions are solved.
Not supported by [setoid_rewrite] yet.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12218 85f007b7-540e-0410-9357-904b9bb8a0f7
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on a matched variable when it is of dependent type, when its type allows
it (no constructor in the real arguments).
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12213 85f007b7-540e-0410-9357-904b9bb8a0f7
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was true.
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and add an optional fail_evar flag to control resolution better in
interpretation functions.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12197 85f007b7-540e-0410-9357-904b9bb8a0f7
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necessary information. Fix implementation of [split_evars] and
use splitting more wisely as it has a big performance impact.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12196 85f007b7-540e-0410-9357-904b9bb8a0f7
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conversion problem. TODO: The right fix is to use constraints and
backtracking search when solving them.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12195 85f007b7-540e-0410-9357-904b9bb8a0f7
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unnecessarily computed when the user won't see it (avoids the costly
nf_evar_defs in typeclass errors).
Add hook support for mutual definitions in Program.
Try to solve only the argument typeclasses when calling [refine].
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12185 85f007b7-540e-0410-9357-904b9bb8a0f7
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in the context to avoid it being abstracted over in potential evars
occuring in the codomain, which can prevent unifications.
Add [intro] to the typeclasses eauto and fix [make_resolve_hyp] to
properly normalize types w.r.t. evars before searching for a class in an
hypothesis.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12182 85f007b7-540e-0410-9357-904b9bb8a0f7
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git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12167 85f007b7-540e-0410-9357-904b9bb8a0f7
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rewriting using eta.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12161 85f007b7-540e-0410-9357-904b9bb8a0f7
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major changes in [w_unify] and the conversion functions used by it to
handle the sort constraints correctly.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12159 85f007b7-540e-0410-9357-904b9bb8a0f7
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conversion when sort variables are involved and always call it
with an empty sort constraint set to avoid [whd_sort_variable] reducing
a universe variable to an algebraic universe.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12156 85f007b7-540e-0410-9357-904b9bb8a0f7
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[base_sort_conv] and revert change in [unify_type].
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12153 85f007b7-540e-0410-9357-904b9bb8a0f7
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[set_eq_sort_variable] for cases where two universes should be equal,
fix [evars_reset_evd] to keep sort constraints and use [whd_sort_var]
directly in [whd_evar].
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12149 85f007b7-540e-0410-9357-904b9bb8a0f7
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- Solve meta type equations in the order they appeared during
unification: it's sensible because we do an [hnf_constr] on these
types, introducing a bit of delta even when it's not allowed by the
flags, and some code relies on it. A definite solution would involve an
nf variant of hnf_constr or allowing delta-reduction of closed terms
when unifying types.
- Do a bit of betaiota reduction on types in [check_types] while we
haven't got a sort-variable aware [is_trans_fconv] test.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12140 85f007b7-540e-0410-9357-904b9bb8a0f7
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universes as usual, we add the new universes to the sort constraints and
do unification modulo those ([constr_unify_with_sorts]): this allows to
instanciate Type i with Prop for example and keep track of it. The sort
constraints are thrown away at the end of unification for the moment,
but we can detect inconsistencies during unification.
Make unification more symmetric as well w.r.t. substitution of defined
metas.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12137 85f007b7-540e-0410-9357-904b9bb8a0f7
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- Restore failure when types don't unify in [unify_types] (undoing
r12075) but try to be more clever about cumulativity using the meta's
[instance_status] information.
- Fix second-order abstraction when K is not allowed to ensure that
we don't unify twice with the same subterm in
[w_unify_to_subterm_list]. A more elaborate solution would be give the
list to [w_unify_to_subterm] so that it keeps going when it finds an
already-found instantiation.
- Two "obvious" errors fixed: taking the wrong instance status when
unifying with a meta on the right and forgoting type equations in
[w_merge].
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12136 85f007b7-540e-0410-9357-904b9bb8a0f7
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non-matching lists.
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git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12132 85f007b7-540e-0410-9357-904b9bb8a0f7
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- Primitive setup for firing typeclass resolution on-demand: add a flag to
control resolution of remaining evars (e.g. typeclasses) during
unification.
- Prevent canonical projection resolution when no delta is allowed
during unification (fixes incompatibility found in ssreflect).
- Correctly check types when the head is an evar _or_ a meta in w_unify.
Move [isEvar_or_Meta] to kernel/term.ml, it's used in two places now.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12131 85f007b7-540e-0410-9357-904b9bb8a0f7
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unification algorithm. Uses the same code to recognize projections
(check_conv_record) and the same unification steps on the solution as
evar_conv. This required to fold the sigma through unify_* along with
the meta and evar substitutions as this can grow during unification.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12128 85f007b7-540e-0410-9357-904b9bb8a0f7
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revealed a too strict test for detection of inferable metas in
Clenv. Restored tolerance for unbound names in interactive tactic use.
- Moral removals of some captures of Not_found in Environ.evaluable_* since
kernel is assumed to deal with existing names.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12122 85f007b7-540e-0410-9357-904b9bb8a0f7
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as hints (see wish #2104).
- New type hint_entry for interpreted hint.
- Better centralization of functions dealing with evaluable_global_reference.
- Unfortunately, camlp4 does not factorize rules so that "Hint Resolve" had
uglily to be factorized by hand.
- Typography in RefMan-tac.tex.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12121 85f007b7-540e-0410-9357-904b9bb8a0f7
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and failure continuations, allowing to do safe cuts correctly.
- Fix bug #2097 by suppressing useless nf_evars calls.
- Improve the proof search strategy used by rewrite for subrelations and
fix some hints.
Up to 20% speed improvement in setoid-intensive files.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12110 85f007b7-540e-0410-9357-904b9bb8a0f7
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- Adding test file related to commit 12080 (bug #2091).
- Cleaning old parsing stuff from 8.0.
- Support for camlp5 in base_include.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12106 85f007b7-540e-0410-9357-904b9bb8a0f7
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- Uniformisation of ML names between pretyping.ml and subtac_pretyping_F.ml
so as to ease the comparison between these files. Application of a
change that cannot do harm: j_nf_evar now called after getting evd
from consider_remaining_unif_problems in
Subtac_pretyping_F.understand_judgment. Four differences remain
(is it the sign of a problem?):
1) understand_type fails in Pretyping if evars remain but does not fail in
Subtac_pretyping_F
2) resolve_typeclasses (when called) is called with ~onlyargs:false and
~fail:true in Pretyping.understand, Pretyping.understand_gen and
Pretyping.understand_type but with true and false in these same
functions in Subtac_pretyping_F
3) understand_ltac does not call typeclasses in Pretyping but it
does call it in Subtac_pretyping_F
4) understand_judgment does call typeclasses in Pretyping but not in
Subtac_pretyping_F
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Axiom f: (nat->nat)->Prop.
Eval compute in let _ := f(fun _ => mult 1000 1000) in 0.
function was strongly evaluated when applied to f
(based on examples provided by Damien Pous)
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correctly.
- Fix the new autorewrite to implement the (unstated) invariant that the
last declared rules are applied first, which makes a difference for
non-confluent rewrite rules. Some scripts in CoLoR rely on that.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12092 85f007b7-540e-0410-9357-904b9bb8a0f7
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to be generalized as they may appear in other arguments or their types.
Try to keep the original names around as well, using the ones found in
the goal. This only requires that interning a pattern [forall x, _]
properly declares [x] as a metavariable, binding instances are already
part of the substitutions computed by [extended_matches].
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12079 85f007b7-540e-0410-9357-904b9bb8a0f7
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Type instead of sort variables for unknown levels in unification).
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This commit concerns about the first half of the useless code
mentionned by Oug for coqtop (without plugins). For the moment,
Oug is used in a mode where any elements mentionned in a .mli
is considered to be precious. This already allows to detect and
remove about 600 lines, and more is still to come.
Among the interesting points, the type Entries.specification_entry
and its constructors SPExxx were never used. Large parts of cases.ml
(and hence subtac_cases.ml) were also useless.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12069 85f007b7-540e-0410-9357-904b9bb8a0f7
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it does not cause a time penalty.
- Removing of get_type_of_with_meta made possible by the
evar_defs/evar_map merge.
- Adding unfolding of Meta in reductionops (this assumes that reduction does
not move Metas across binders...)
- Renaming newly created fold_map_rel_context into map_rel_context_in_env.
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