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* Update copyright headers.Gravatar Maxime Dénès2016-01-20
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* Inclusion of functors with restricted signature is now forbidden (fix #3746)Gravatar Pierre Letouzey2015-12-22
| | | | | | | | | | | | | | | | | | | | | The previous behavior was to include the interface of such a functor, possibly leading to the creation of unexpected axioms, see bug report #3746. In the case of non-functor module with restricted signature, we could simply refer to the original objects (strengthening), but for a functor, the inner objects have no existence yet. As said in the new error message, a simple workaround is hence to first instantiate the functor, then include the local instance: Module LocalInstance := Funct(Args). Include LocalInstance. By the way, the mod_type_alg field is now filled more systematically, cf new comments in declarations.mli. This way, we could use it to know whether a module had been given a restricted signature (via ":"). Earlier, some mod_type_alg were None in situations not handled by the extraction (MEapply of module type). Some code refactoring on the fly.
* Minor module cleanup : error HigherOrderInclude was never happeningGravatar Pierre Letouzey2015-10-25
| | | | | | When F is a Functor, doing an 'Include F' triggers the 'Include Self' mechanism: the current context is used as an pseudo-argument to F. This may fail with a subtype error if the current context isn't adequate.
* Update headers.Gravatar Maxime Dénès2015-01-12
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* Cleaner interfaces for linking locations of native compiler.Gravatar Maxime Dénès2014-11-12
| | | | | | Stop sharing those references across constants of the same module, which was triggering some bugs when using native_compute in interactive mode in a functor declaration.
* selective join/export of the safe_environmentGravatar Enrico Tassi2014-10-13
| | | | | This generalizes the BuildVi flag and lets one choose which opaque proofs are done and which not.
* library/opaqueTables: enable their use in interactive modeGravatar Enrico Tassi2014-10-13
| | | | | | | | | | | | | | Before this patch opaque tables were only growing, making them unusable in interactive mode (leak on Undo). With this patch the opaque tables are functional and part of the env. I.e. a constant_body can point to the proof term in 2 ways: 1) directly (before the constant is discharged) 2) indirectly, via an int, that is mapped by the opaque table to the proof term. This is now consistent in batch/interactive mode This is step 0 to make an interactive coqtop able to dump a .vo/.vi
* Implement module subtyping for polymorphic constants (errors onGravatar Matthieu Sozeau2014-10-02
| | | | | | | | inductives). The implementation constant should have the a universe instance of the same length, we assume the universes are in the same order and we check that the definition does not add any constraints to the expected ones. This fixes bug #3670.
* Remove many superfluous 'open' indicated by ocamlc -w +33Gravatar Pierre Letouzey2014-03-05
| | | | | | | | With ocaml 4.01, the 'unused open' warning also checks the mli :-) Beware: some open are reported as useless when compiling with camlp5, but are necessary for compatibility with camlp4. These open are now marked with a comment.
* Removing native_name reference from constant_body.Gravatar Maxime Dénès2013-12-28
| | | | | | For now, this reference (renamed to link_info) has been moved to the environment (for constants and inductive types). But this is only a first step towards making the native compiler more functional.
* Future: ported to Ephemeron + exception enhancingGravatar gareuselesinge2013-10-18
| | | | | | | | | | | | | | | | A future always carries a fix_exn with it: a function that enriches an exception with the state in which the error occurs and also a safe state close to it where one could backtrack. A future can be in two states: Ongoing or Finished. The latter state is obtained by Future.join and after that the future can be safely marshalled. An Ongoing future can be marshalled, but its value is lost. This makes it possible to send the environment to a slave process without pre-processing it to drop all unfinished proofs (they are dropped automatically in some sense). git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16892 85f007b7-540e-0410-9357-904b9bb8a0f7
* Declarations.mli: reorganization of modular structuresGravatar letouzey2013-08-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The earlier type [struct_expr_body] was far too broad, leading to code with unclear invariants, many "assert false", etc etc. Its replacement [module_alg_expr] has only three constructors: * MEident * MEapply : note the module_path as 2nd arg, no more constraints here * MEwith : no more constant_body inside, constr is just fine But no more SEBfunctor or SEBstruct constructor here (see below). This way, this datatype corresponds to algebraic expressions, i.e. anything that can appear in non-interactive modules. In fact, it even coincides now with [Entries.module_struct_entry]. - Functor constructors are now necessarily on top of other structures thanks to a generic [functorize] datatype. - Structures are now separated from algebraic expressions by design : the [mod_type] and [typ_expr] fields now only contain structures (or functorized structures), while [mod_type_alg] and [typ_expr_alg] are restricted to algebraic expressions only. - Only the implementation field [mod_expr] could be either algebraic or structural. We handle this via a specialized datatype [module_implementation] with four constructors: * Abstract : no implementation (cf. for instance Declare Module) * Algebraic(_) : for non-interactive modules, e.g. Module M := N. * Struct(_) : for interactive module, e.g. Module M : T. ... End M. * FullStruct : for interactive module with no type restriction. The [FullStruct] is a particular case of [Struct] where the implementation need not be stored at all, since it is exactly equal to its expanded type present in [mod_type]. This is less fragile than hoping as earlier that pointer equality between [mod_type] and [mod_expr] will be preserved... - We clearly emphasize that only [mod_type] and [typ_expr] are relevant for the kernel, while [mod_type_alg] and [typ_expr_alg] are there only for a nicer extraction and shorter module printing. [mod_expr] is also not accessed by the kernel, but it is important for Print Assumptions later. - A few implicit invariants remain, for instance "no MEwith in mod_expr", see the final comment in Declarations - Heavy refactoring of module-related files : modops, mod_typing, safe_typing, declaremods, extraction/extract_env.ml ... - Coqchk has been adapted accordingly. The code concerning MEwith in Mod_checking is now gone, since we cannot have any in mod_expr. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16712 85f007b7-540e-0410-9357-904b9bb8a0f7
* Declareops + Modops : more clever substitutionsGravatar letouzey2013-08-20
| | | | | | | | | | | | | | | | | We try harder to preserve pointer equality when substituting. This will probably have little effect (for instance the constr_substituted are anyway _never_ substituted in place), but it cannot harm. Two particular cases: - we try to share (and maintain shared) mind_user_lc and mind_nf_lc - we try to share (and maintain shared) mod_expr and mod_type TODO: check that native compiler is still ok, since we might have less (ref NotLinked) now. Having references in constant_body and co is anyway a Very Bad Idea (TM). git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16711 85f007b7-540e-0410-9357-904b9bb8a0f7
* Safe_typing code refactoringGravatar letouzey2013-08-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - No more modinfo sub-record in the safe_environment record, this was a syntactic pain. senv.modinfo.modpath --> senv.modpath senv.modinfo.variant --> senv.modvariant senv.modinfo.resolver --> senv.modresolver senv.modinfo.resolver_of_param --> senv.paramresolver senv.modinfo.label : removed (can be inferred from modpath) - No more systematic chaining of safe_environment ('old' field). Instead, earlier safe_environment is stored in the modvariant field when necessary (STRUCT and SIG case). - Improved sharing between end_module and end_modtype - More qualified names instead of open, better comments, ... - Some user errors are now checked earlier elsewhere (see for instance vernac_end_segment), so we can turn these errors into asserts. The user error about higher-order include is now algebraic. - Highlight the idea of a state monad in Safe_typing : type 'a safe_transformer = safe_environment -> 'a * safe_environment More systematic code in Global, thanks to 'globalize' function. - Declaremods : less informations stored in openmod_info git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16708 85f007b7-540e-0410-9357-904b9bb8a0f7
* enhance marshallable option for freeze (minor TODO in safe_typing)Gravatar gareuselesinge2013-08-08
| | | | | | | | | It can be: `Yes Full data, in a state that can be marshalled `No Full data, good for Undo only `Shallow Partial data, marshallable, good for slave processes git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16682 85f007b7-540e-0410-9357-904b9bb8a0f7
* State Transaction MachineGravatar gareuselesinge2013-08-08
| | | | | | | | | | | | | | | | | | | | | The process_transaction function adds a new edge to the Dag without executing the transaction (when possible). The observe id function runs the transactions necessary to reach to the state id. Transaction being on a merged branch are not executed but stored into a future. The finish function calls observe on the tip of the current branch. Imperative modifications to the environment made by some tactics are now explicitly declared by the tactic and modeled as let-in/beta-redexes at the root of the proof term. An example is the abstract tactic. This is the work described in the Coq Workshop 2012 paper. Coq is compile with thread support from now on. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16674 85f007b7-540e-0410-9357-904b9bb8a0f7
* Modops.destr_functor without useless envGravatar letouzey2013-07-17
| | | | git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16629 85f007b7-540e-0410-9357-904b9bb8a0f7
* Robust display of NotConvertibleTypeField errors (fix #3008, #2995)Gravatar letouzey2013-03-21
| | | | | | | | | | | | | | Since the nametab isn't aware of everything needed to print mismatched types (cf the bug test-cases), we create a robust term printer that known how to print a fully-qualified name when [shortest_qualid_of_global] has failed. These Printer.safe_pr_constr and alii are meant to never fail (at worse they display "??", for instance when the env isn't rich enough). Moreover, the environnement may have changed between the raise of NotConvertibleTypeField and its display, so we store the original env in the exception. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16342 85f007b7-540e-0410-9357-904b9bb8a0f7
* Fixing bug #2466Gravatar ppedrot2013-02-24
| | | | git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16241 85f007b7-540e-0410-9357-904b9bb8a0f7
* Modulification of nameGravatar ppedrot2012-12-18
| | | | git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16099 85f007b7-540e-0410-9357-904b9bb8a0f7
* Modulification of mod_bound_idGravatar ppedrot2012-12-18
| | | | git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16098 85f007b7-540e-0410-9357-904b9bb8a0f7
* Modulification of LabelGravatar ppedrot2012-12-18
| | | | git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16097 85f007b7-540e-0410-9357-904b9bb8a0f7
* Modulification of identifierGravatar ppedrot2012-12-14
| | | | git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16071 85f007b7-540e-0410-9357-904b9bb8a0f7
* Updating headers.Gravatar herbelin2012-08-08
| | | | git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@15715 85f007b7-540e-0410-9357-904b9bb8a0f7
* remove many excessive open Util & Errors in mli'sGravatar letouzey2012-05-29
| | | | git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@15392 85f007b7-540e-0410-9357-904b9bb8a0f7
* Noise for nothingGravatar pboutill2012-03-02
| | | | | | | | | | | 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. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@15020 85f007b7-540e-0410-9357-904b9bb8a0f7
* Modops: the strengthening functions can work without any env argumentGravatar letouzey2011-05-17
| | | | | | | The env was used for a particular case of Cbytegen.compile_constant_body, but we can actually guess that it will answer a particular BCallias con. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@14134 85f007b7-540e-0410-9357-904b9bb8a0f7
* Moving printing of module typing errors upwards to himsg.ml so as toGravatar herbelin2011-03-05
| | | | | | be able to call term printers. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@13886 85f007b7-540e-0410-9357-904b9bb8a0f7
* Starting being more explicit on the reasons why module subtyping fails.Gravatar herbelin2011-03-05
| | | | | | | | | Note: I'm unsure about some subtyping error case apparently involving aliases of inductive types (middle of Subtyping.check_inductive); I bound it to some NotEqualInductiveAliases error, but this has to be checked. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@13885 85f007b7-540e-0410-9357-904b9bb8a0f7
* A fine-grain control of inlining at functor application via priority levelsGravatar letouzey2011-01-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As said in CHANGES: << The inlining done during application of functors can now be controlled more precisely. In addition to the "!F G" syntax preventing any inlining, we can now use a priority level to select parameters to inline : "<30>F G" means "only inline in F the parameters whose levels are <= 30". The level of a parameter can be fixed by "Parameter Inline(30) foo". When levels aren't given, the default value is 100. One can also use the flag "Set Inline Level ..." to set a level. >> Nota : the syntax "Parameter Inline(30) foo" is equivalent to "Set Inline Level 30. Parameter Inline foo.", and "Include <30>F G" is equivalent to "Set Inline Level 30. Include F G." For instance, in ZBinary, eq is @Logic.eq and should rather be inlined, while in BigZ, eq is (fun x y => [x]=[y]) and should rather not be inlined. We could achieve this behavior by setting a level such as 30 to the parameter eq, and then tweaking the current level when applying functors. This idea of levels might be too restrictive, we'll see, but at least the implementation of this change was quite simple. There might be situation where parameters cannot be linearly ordered according to their "inlinablility". For these cases, we would need to mention names to inline or not at a functor application, and this is a bit more tricky (and might be a pain to use if there are many names). No documentation for the moment, since this feature is experimental and might still evolve. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@13807 85f007b7-540e-0410-9357-904b9bb8a0f7
* Updated all headers for 8.3 and trunkGravatar herbelin2010-07-24
| | | | git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@13323 85f007b7-540e-0410-9357-904b9bb8a0f7
* New script dev/tools/change-header to automatically update Coq files headers.Gravatar herbelin2010-06-22
| | | | | | Applied it to fix mli file headers. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@13176 85f007b7-540e-0410-9357-904b9bb8a0f7
* Remove the svn-specific $Id$ annotationsGravatar letouzey2010-04-29
| | | | | | | | | | | - 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 git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12972 85f007b7-540e-0410-9357-904b9bb8a0f7
* Move from ocamlweb to ocamdoc to generate mli documentationGravatar pboutill2010-04-29
| | | | | | | | | | | | | | | | | | | dev/ocamlweb-doc has been erased. I hope no one still use the "new-parse" it generate. In dev/, make html will generate in dev/html/ "clickable version of mlis". (as the caml standard library) make coq.pdf will generate nearly the same awfull stuff that coq.ps was. make {kernel,lib,parsing,..}.{dot,png} will do the dependancy graph of the given directory. ocamldoc comment syntax is here : http://caml.inria.fr/pub/docs/manual-ocaml/manual029.html The possibility to put graphs in pdf/html seems to be lost. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12969 85f007b7-540e-0410-9357-904b9bb8a0f7
* cf. 12945Gravatar soubiran2010-04-16
| | | | git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12946 85f007b7-540e-0410-9357-904b9bb8a0f7
* Include can accept both Module and Module TypeGravatar letouzey2010-01-07
| | | | | | | | Syntax Include Type is still active, but deprecated, and triggers a warning. The syntax M <+ M' <+ M'', which performs internally an Include, also benefits from this: M, M', M'' can be independantly modules or module type. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12640 85f007b7-540e-0410-9357-904b9bb8a0f7
* This big commit addresses two problems:Gravatar soubiran2009-10-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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... git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12406 85f007b7-540e-0410-9357-904b9bb8a0f7
* Delete trailing whitespaces in all *.{v,ml*} filesGravatar glondu2009-09-17
| | | | git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12337 85f007b7-540e-0410-9357-904b9bb8a0f7
* Ajout des alias de module dans le noyau.Gravatar soubiran2008-03-14
| | | | git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10664 85f007b7-540e-0410-9357-904b9bb8a0f7
* Attempt of fix for extraction of modules typesGravatar letouzey2008-03-05
| | | | | | | | | | | | | | | | | * When no explicit module type is given in Coq, extraction proceeds with more caution when recontructing a module type from the module. For instance, a module ident isn't keep, since it's the name of an implementation, not of a module type. Fix the bug functor M -> M : funsig M -> M instead of funsig M -> typeof(M) * Removed duplicated code with Modops * The call to replicate_msid doesn't seem to be as crucial as before. Let's try to remove it. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10620 85f007b7-540e-0410-9357-904b9bb8a0f7
* Beaoucoup de changements dans la representation interne des modules.Gravatar soubiran2008-02-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | kernel: -declaration.ml unification des representations pour les modules et modules types. (type struct_expr_body) -mod_typing.ml le typage des modules est separe de l'evaluation des modules -modops.ml nouvelle fonction qui pour toutes expressions de structure calcule sa forme evaluee.(eval_struct) -safe_typing.ml ajout du support du nouvel operateur Include.(add_include). library: -declaremods.ml nouveaux objets Include et Module-alias et gestion de la resolution de noms pour les alias via la nametab. parsing: -g_vernac.ml4: nouvelles regles pour le support des Includes et pour l'application des signatures fonctorielles. extraction: Adaptation a la nouvelle representation des modules et support de l'operateur with. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10497 85f007b7-540e-0410-9357-904b9bb8a0f7
* Processor integers + Print assumption (see coqdev mailing list for the Gravatar aspiwack2007-05-11
| | | | | | | | | details). git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@9821 85f007b7-540e-0410-9357-904b9bb8a0f7
* Fixed the pseudo-cicularity problem due to the with operator on Module Type.Gravatar soubiran2007-02-21
| | | | git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@9662 85f007b7-540e-0410-9357-904b9bb8a0f7
* modifications des messages d'erreurs renvoyés lors de la comparaison Gravatar soubiran2007-01-24
| | | | | | | de deux signatures de modules. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@9531 85f007b7-540e-0410-9357-904b9bb8a0f7
* Inversion de l'ordre de chargement des objets logiques et non logiquesGravatar herbelin2006-04-15
| | | | | | | | | | | | | | | | | | | | | à la déclaration des paramètres de foncteurs (problème de synchronisation révélé par bug #1118, apparu suite à l'appel de lookup_mind par load_struct, suite au passage à un discharge local) Les objets non logiques sont maintenant chargés après car ils peuvent dépendre d'objets logiques. Et comme les objets non logiques (p.ex. l'import récursif de modules dans la nametab) sont nécessaires au typage de l'éventuelle contrainte de module, on reporte la gestion de la contrainte au moment du end_module (on aurait peut-être pu faire plus fin et extraire dans do_module la partie purement module, mais après tout le report de la contrainte de type dans le end_module ne semble pas génante). À la date d'aujourd'hui, le bug #1118 reste toutefois ouvert avec les définitions de module non interactives. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@8721 85f007b7-540e-0410-9357-904b9bb8a0f7
* Compatibilité ocamlweb pour cible docGravatar herbelin2005-01-21
| | | | git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@6616 85f007b7-540e-0410-9357-904b9bb8a0f7
* Construct "T with (Definition|Module) id := c" generalized toGravatar sacerdot2005-01-13
| | | | | | | "T with (Definition|Module) M1.M2....Mn.id := c" (in the ML style). git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@6582 85f007b7-540e-0410-9357-904b9bb8a0f7
* HUGE COMMITGravatar sacerdot2005-01-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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
* Names.substitution (and related functions) and Term.subst_mps moved toGravatar sacerdot2004-11-16
| | | | | | | | | | | 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
* Nouvelle en-têteGravatar herbelin2004-07-16
| | | | git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@5920 85f007b7-540e-0410-9357-904b9bb8a0f7