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This reverts commit 28bcf05dd876beea8697f6ee47ebf916a8b94cdf.
An other wrong externalize function
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Util only depends on Ocaml stdlib and Utf8 tables.
Generic pretty printing and loc functions are in Pp.
Generic errors are in Errors.
+ Training white-spaces, useless open, prlist copies random erasure.
Too many "open Errors" on the contrary.
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univ_depends checks whether a universe variable appears or
is equal to a universe. In comparison with the previous hack
in inductiveops based on try...catching UniverseInconsistency,
this should be semantically equivalent, simplier, and more
robust in case we allow someday an unsafe mode where
merge_constraints would be a no-op.
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- Functions without _env use the global env.
- More comments about when letin are counted.
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No need to tell the world about the fact that constraints are
implemented via caml's Set. Other modules just need to know about
the empty and union functions (and addition functions "enforce_geq"
and "enforce_eq" that were already there).
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In particular, the unused lib/tlm.ml and lib/gset.ml are removed
In addition, to simplify code, Libobject.record_object returning only the
('a->obj) function, which is enough almost all the time.
Use Libobject.record_object_full if you really need also the (obj->'a).
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In "(match ... with |... -> fun x -> t end) u", "x" has now the subterm
property of "u" in the analysis of "t".
Commutative cuts aren't compatible with typing so we need to ensure that
term of "x"'s type and term of "u"'s have the same subterm_spec.
Consequently,declaration.MRec argument has changed to the inductive name
instead of only the number of the inductive in the mutual_inductive
family.
In subterm_specif and check_rec_call, arguments are stored in a stack.
At each lambda, one element is popped to add in renv a smarter
subterm_spec for the variable. subterm_spec of constructor's argument
was added this way, the job is now done more often.
Some eta contracted match branches are now accepted but enforcing
eta-expansion of branches might be anyway a recommended invariant.
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- Many of them were broken, some of them after Pierre B's rework
of mli for ocamldoc, but not only (many bad annotation, many files
with no svn property about Id, etc)
- Useless for those of us that work with git-svn (and a fortiori
in a forthcoming git-only setting)
- Even in svn, they seem to be of little interest
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variables (which include let-ins in cstr type)
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1- Management of the name-space in a modular development / sharing of non-logical objects.
2- Performance of atomic module operations (adding a module to the environment, subtyping ...).
1-
There are 3 module constructions which derive equalities on fields from a module to another:
Let P be a module path and foo a field of P
Module M := P.
Module M.
Include P.
...
End M.
Declare Module K : S with Module M := P.
In this 3 cases we don't want to be bothered by the duplication of names.
Of course, M.foo delta reduce to P.foo but many non-logical features of coq
do not work modulo conversion (they use eq_constr or constr_pat object).
To engender a transparent name-space (ie using P.foo or M.foo is the same thing)
we quotient the name-space by the equivalence relation on names induced by the
3 constructions above.
To implement this, the types constant and mutual_inductive are now couples of
kernel_names. The first projection correspond to the name used by the user and the second
projection to the canonical name, for example the internal name of M.foo is
(M.foo,P.foo).
So:
*************************************************************************************
* Use the eq_(con,mind,constructor,gr,egr...) function and not = on names values *
*************************************************************************************
Map and Set indexed on names are ordered on user name for the kernel side
and on canonical name outside. Thus we have sharing of notation, hints... for free
(also for a posteriori declaration of them, ex: a notation on M.foo will be
avaible on P.foo). If you want to use this, use the appropriate compare function
defined in name.ml or libnames.ml.
2-
No more time explosion (i hoppe) when using modules i have re-implemented atomic
module operations so that they are all linear in the size of the module. We also
have no more unique identifier (internal module names) for modules, it is now based
on a section_path like mechanism => we have less substitutions to perform at require,
module closing and subtyping but we pre-compute more information hence if we instanciate
several functors then we have bigger vo.
Last thing, the checker will not work well on vo(s) that contains one of the 3 constructions
above, i will work on it soon...
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interpreted as using the collection of their constructors as hints.
- Add support for both "using" and "with" in "firstorder". Made the
syntax of "using" compatible with the one of "auto" by separating
lemmas by commas. Did not fully merge the syntax: auto accepts
constr while firstorder accepts names (but are constr really useful?).
- Added "Reserved Infix" as a specific shortcut of the corresponding
"Reserved Notation".
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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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- 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).
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splay_prod_n, lam_it -> it_mkLambda, splay_lambda -> splay_lam). Added
shortcuts for "fst (decompose_prod t)" and co.
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- backtrack on kernel modifications: the monomorphic instance of an inductive
type is constrained to live in an universe higher (or equal) than all the
instances
- improved support for polymorphic inductive types at the refiner level:
introduced type_of_inductive_knowing_conclusion that computes the
instance to match the current conclusion universe.
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contraintes bornant par le haut le type de l'inductif (ce qui peut
arriver quand l'inductif est argument d'une constante) étaient
oubliées : on pouvait se retrouver avec des inductifs dont le type des
constructeurs, une fois instancié par des paramètres) n'était plus
typable (seul leur réduit, après expansion des constantes, était
typable). [kernel, test-suite]
+ Affichage des inductifs (via Print) en prenant la forme utilisateur des
constructeurs.
+ Correction warning dans compilation gallina.ml.
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majuscule - si pas un ident ou un terme - et se terminent par un point).
Restent quelques utilisations de "error" qui sont liées à des usages internes,
ne faudrait-il pas utiliser des exceptions plus spécifiques à la place ?
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iter_constr_with_full_binders + documentation de Guarded.
--Cette ligne, et les suivantes ci-dessous, seront ignorées--
M trunk/doc/refman/RefMan-pro.tex
M trunk/pretyping/inductiveops.ml
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(suppression au passage d'un cast dans constant_entry_of_com - ce
n'est pas normal qu'on force le type s'il n'est pas déjà présent mais
en même temps il semble que ce cast serve pour rafraîchir les univers
algébriques...)
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- prise en compte du niveau à la déclaration du type comme une fonction
des sortes des conclusions des paramètres uniformes
- suppression du retypage de chaque instance de type inductif (trop coûteux)
et donc abandon de l'idée de calculer une sorte minimale même dans
des cas comme Inductive t (b:bool) := c : (if b then Prop else Type) -> t.
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des inductifs de la clause "in" du filtrage.
- Débogage et extension du parseur xml (g_xml.ml4)
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7833, et que la révision 8644 n'avait pas corrigé dans le bon sens;
renommage en mind_consnrealdecls pour éviter la confusion de sens
avec mind_nrealargs
- Correction de la description du type one_inductive_body
- Ajout test avec let-in dans params et dans type constructeur
(fichier Case12.v)
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et dans case_info pour permettre l'indépendance de detyping (entre autres) envers l'environnement
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Ajout de cast indiquant au kernel la strategie a suivre
Resolution du bug sur les coinductifs
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ocaml 3.09
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in recordops
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to accept a mind_specif (a couple mutual_inductive_body * one_inductive_body)
instead of looking it up in the environment. A version of the same functions
with the old type is put in Inductiveops (outside the kernel).
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dépendance en le terme filtré (cf Indrec) + déplacement routines pour Cases à la V7 dans Pretyping)
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inductifs
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Option -v8 à coqtop lance coqtopnew
Le terminateur reste "." en v8
Ajout construction primitive CLetTuple/RLetTuple
Introduction typage dans le traducteur pour traduire les Case/Cases/Match
Ajout mutables dans RCases or ROrderedCase pour permettre la traduction
Ajout option -no-strict pour traduire les "Set Implicits" en implicites stricts
+ Bugs ou améliorations diverses
Raffinement affichage projections de Record/Structure.
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list_skipn n l
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quand meme Global.env()
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- Le parsing se fait maintenant via "constr_expr" au lieu de "Coqast.t"
- "Coqast.t" reste pour l'instant pour le pretty-printing. Un deuxième
pretty-printer dans ppconstr.ml est basé sur "constr_expr".
- Nouveau répertoire "interp" qui hérite de la partie interprétation qui
se trouvait avant dans "parsing" (constrintern.ml remplace astterm.ml;
constrextern.ml est l'équivalent de termast.ml pour le nouveau
printer; topconstr.ml; contient la définition de "constr_expr";
modintern.ml remplace astmod.ml)
- Libnames.reference tend à remplacer Libnames.qualid
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letins, ce qui conduisait a des comportement peu intuitifs. On priviligiera l'utilisation de la tactique Subst.
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