| Commit message (Collapse) | Author | Age |
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git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@6616 85f007b7-540e-0410-9357-904b9bb8a0f7
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1. when applying a functor F(X) := B to a module M, the obtained module
is no longer B{X.t := M.t for all t}, but B{X.t := b where b is the
body of t in M}. In principle it is now easy to fine tune the behaviour
to choose whether b or M.t must be used. This change implies modifications
both inside and outside the kernel.
2. for each object in the library it is now necessary to define the behaviour
w.r.t. the substitution {X.t := b}. Notice that in many many cases the
pre-existing behaviour w.r.t. the substitution {X.t := M.t} was broken
(in the sense that it used to break several invariants). This commit
fixes the behaviours for most of the objects, excluded
a) coercions: a future commit should allow any term to be declared
as a coercion; moreover the invariant that just a coercion path
exists between two classes will be broken by the instantiation.
b) global references when used as arguments of a few tactics/commands
In all the other cases the behaviour implemented is the one that looks
to me as the one expected by the user (if possible):
[ terminology: not expanded (X.t := M.t) vs expanded (X.t := b) ]
a) argument scopes: not expanded
b) SYNTAXCONSTANT: expanded
c) implicit arguments: not expanded
d) coercions: expansion to be done (for now not expanded)
e) concrete syntax tree for patterns: expanded
f) concrete syntax tree for raw terms: expanded
g) evaluable references (used by unfold, delta expansion, etc.): not
expanded
h) auto's hints: expanded when possible (i.e. when the expansion of the
head of the pattern is rigid)
i) realizers (for program extraction): nothing is done since the actual
code does not look for the realizer of definitions with a body;
however this solution is fragile.
l) syntax and notation: expanded
m) structures and canonical structures: an invariant says that no
parameter can happear in them ==> the substitution always yelds the
original term
n) stuff related to V7 syntax: since this part of the code is doomed
to disappear, I have made no effort to fix a reasonable semantics;
not expanded is the default one applied
o) RefArgTypes: to be understood. For now a warning is issued whether
expanded != not expanded, and the not expanded solution is chosen.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@6555 85f007b7-540e-0410-9357-904b9bb8a0f7
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the new module kernel/mod_subst.ml.
MOTIVATION: mod_subst is compiled after kernel/term.ml; thus it is now
possible to define substitutions that also delta-expand constants
(by associating the delta-expanded form to the constant name).
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@6304 85f007b7-540e-0410-9357-904b9bb8a0f7
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MOVITATION: in a forthcoming commit the application of a substitution to a
constant will return a constr and not a constant. The application of a
substitution to a kernel_name will return a kernel_name. Thus "constant"
should be use as a kernel name for references that can be delta-expanded.
KNOWN PROBLEMS: the only problem faced is in pretyping/recordops.ml (the code
that implements "Canonical Structure"s). The ADT is violated once in this
ocaml module. My feeling is that the implementation of "Canonical Structure"s
should be rewritten to avoid this situation.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@6303 85f007b7-540e-0410-9357-904b9bb8a0f7
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git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@5920 85f007b7-540e-0410-9357-904b9bb8a0f7
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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
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@3235 85f007b7-540e-0410-9357-904b9bb8a0f7
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git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@3203 85f007b7-540e-0410-9357-904b9bb8a0f7
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git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@3121 85f007b7-540e-0410-9357-904b9bb8a0f7
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git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@2957 85f007b7-540e-0410-9357-904b9bb8a0f7
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commandes vernaculaires (cf dev/changements.txt pour plus de précisions)
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@2722 85f007b7-540e-0410-9357-904b9bb8a0f7
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- Typage renforcé dans les grammaires (distinction des vars et des metavars)
- Disparition de SLAM au profit de ABSTRACT
- Paths primitifs dans les quotations (syntaxe concrète à base de .)
- Mise en place de identifier dès le type ast
- Protection de identifier contre les effets de bord via un String.copy
- Utilisation de module_ident (= identifier) dans les dir_path (au
lieu de string)
Table des noms qualifiés
- Remplacement de la table de visibilité par une table qui ne cache
plus les noms de modules et sections mais seulement les noms des
constantes (e.g. Require A. ne cachera plus le contenu d'un éventuel
module A déjà existant : seuls les noms de constructions de l'ancien
A qui existent aussi dans le nouveau A seront cachés)
- Renoncement à la possibilité d'accéder les formes non déchargées des
constantes définies à l'intérieur de sections et simplification
connexes (suppression de END-SECTION, une seule table de noms qui ne
survit pas au discharge)
- Utilisation de noms longs pour les modules, de noms qualifiés pour
Require and co, tests de cohérence; pour être cohérent avec la non
survie des tables de noms à la sortie des section, les require à
l'intérieur d'une section eux aussi sont refaits à la fermeture de la
section
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@1889 85f007b7-540e-0410-9357-904b9bb8a0f7
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git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@1469 85f007b7-540e-0410-9357-904b9bb8a0f7
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git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@1090 85f007b7-540e-0410-9357-904b9bb8a0f7
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git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@220 85f007b7-540e-0410-9357-904b9bb8a0f7
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git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@53 85f007b7-540e-0410-9357-904b9bb8a0f7
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