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* STM: better handle proof modesGravatar gareuselesinge2013-09-30
| | | | | | | | Proof modes are really spaghetti code. It is a global state that you can't access (held by G_vernac). We stick it to the branches... git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16820 85f007b7-540e-0410-9357-904b9bb8a0f7
* Vernac classification streamlined (handles VERNAC EXTEND)Gravatar gareuselesinge2013-08-08
| | | | | | | | | | | | | | | | | | | | | | | The warning output by vernacextend when the classifier is missing is the documentation of this commit: Warning: Vernac entry "Foo" misses a classifier. A classifier is a function that returns an expression of type vernac_classification (see Vernacexpr). You can: - Use '... EXTEND Foo CLASSIFIED AS QUERY ...' if the new vernacular command does not alter the system state; - Use '... EXTEND Foo CLASSIFIED AS SIDEFF ...' if the new vernacular command alters the system state but not the parser nor it starts a proof or ends one; - Use '... EXTEND Foo CLASSIFIED BY f ...' to specify a global function f. The function f will be called passing "Foo" as the only argument; - Add a specific classifier in each clause using the syntax: '[...] => [ f ] -> [...]'. Specific classifiers have precedence over global classifiers. Only one classifier is called. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16680 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
* Splitted up Genarg in four different levels:Gravatar ppedrot2013-06-21
| | | | | | | | | | | | | 1. Genarg itself which only defines the abstract datatypes needed. 2. Genintern, first file of interp/, defining the intern and subst functions. 3. Geninterp, first file of tactics/, defining the interp function. 4. Genprint, first file of printing/, dealing with the printers. The Genarg file has no dependency and is in lib/, so that we can put generic arguments everywhere, and in particular in ASTs. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16601 85f007b7-540e-0410-9357-904b9bb8a0f7
* Revert "parse "of" as KEYID "of""Gravatar gareuselesinge2013-06-21
| | | | | | This reverts commit edb2c43e152d40001616485fcf7fdde5d947f7a2. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16598 85f007b7-540e-0410-9357-904b9bb8a0f7
* parse "of" as KEYID "of"Gravatar gareuselesinge2013-06-19
| | | | git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16591 85f007b7-540e-0410-9357-904b9bb8a0f7
* Removing the various glob/subst/interp registering functions forGravatar ppedrot2013-06-18
| | | | | | extra argument types and putting them into Genarg. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16586 85f007b7-540e-0410-9357-904b9bb8a0f7
* Uniformizing generic argument types.Gravatar ppedrot2013-06-06
| | | | | | | | | | | | | | | | | | Now, instead of having three unrelated types describing a dynamic type at each level (raw, glob, top), we have a "('a, 'b, 'c) genarg_type" whose parameters describe the reified type at each level. This has various advantages: - No more code duplication to handle the three level separately; - Safer code: one is not authorized to mix unrelated types when what was morally expected was a genarg_type. - Each level-specialized representation can be accessed through well-typed projections: rawwit, glbwit and topwit. Documenting a bit Genarg b.t.w. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16564 85f007b7-540e-0410-9357-904b9bb8a0f7
* No reason a priori for using unfiltered env for printingGravatar herbelin2013-01-29
| | | | | | goal. Filtered env is intended to be type-safe. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16177 85f007b7-540e-0410-9357-904b9bb8a0f7
* Uniformization of the "anomaly" command.Gravatar ppedrot2013-01-28
| | | | git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16165 85f007b7-540e-0410-9357-904b9bb8a0f7
* Split Tacinterp in 3 files : Tacsubst, Tacintern and TacinterpGravatar letouzey2012-10-16
| | | | git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@15896 85f007b7-540e-0410-9357-904b9bb8a0f7
* Moved Compat to parsing. This permits to break the dependency of theGravatar ppedrot2012-10-04
| | | | | | | | | | | | kernel on CAMLP4/5 structures, and consequently should also erase such structures from vo files. This modification requires some code duplication, mainly while reimplementing our own location data type. This is chiefly visible in the ml4 files, where CAMLP4/5 locations must be manually converted to our locations with an explicit (!@) cast operator. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@15847 85f007b7-540e-0410-9357-904b9bb8a0f7
* Remove some more "open" and dead code thanks to OCaml4 warningsGravatar letouzey2012-10-02
| | | | git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@15844 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
* place all files specific to camlp4 syntax extensions in grammar/Gravatar letouzey2012-05-29
| | | | git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@15387 85f007b7-540e-0410-9357-904b9bb8a0f7
* New files intf/constrexpr.mli and intf/notation_term.mli out of TopconstrGravatar letouzey2012-05-29
| | | | git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@15375 85f007b7-540e-0410-9357-904b9bb8a0f7
* Corrects a (very) longstanding bug of tactics. As is were, tactic expectingGravatar aspiwack2012-04-18
| | | | | | | | | | | | | | | | constr as argument (rather than openconstr) assumed that the evar_map output by pretyping was irrelevant as the final constr didn't have any evars. However, if said constr was defined using pre-existing evars from the context, the evars may be instantiated by pretyping, hence dropping the output evar_map led to inconsistent proof terms. This fixes bug #2739 ( https://coq.inria.fr/bugs/show_bug.cgi?id=2739 ). Thanks Arthur for noticing it. Note: change still has the bug, because more serious issues interfered with my fix. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@15207 85f007b7-540e-0410-9357-904b9bb8a0f7
* Fixing alpha-conversion bug #2723 introduced in r12485-12486.Gravatar herbelin2012-03-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The optimisation done of Namegen.visibly_occur_id did not preserve the previous behavior when pr_constr/constr_extern/detype were called on a term with free rel variables. We backtrack on it to go back to the 8.2 behavior. Seized this opportunity to clarify the meaning of the at_top flag in constrextern.ml and printer.ml and to rename it into goal_concl_style. The badly-named at_top flag was introduced in Coq 6.3 in 1999 to mean that when printing variables bound in the goal, names had to avoid the names of the variables of the goal context, so as to keep naming stable when using "intro"; in r4458, printing improved by not avoiding names that were short names of global definitions, e.g. "S", or "O" (except when the at_top flag was on for compatibility reasons). Other printing strategies could be possible in the non-goal-concl-style mode. For instance, all bound variables could be made distinct in a given expression, even if no clash occur, therefore following so-called Barendregt's convention. This could be done by setting "avoid" to "ids_of_rel_context (rel_context env)" in extern_constr and extern_type (and then, Namegen.visibly_occur_id could be re-simplified again!). git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@15067 85f007b7-540e-0410-9357-904b9bb8a0f7
* Fixing bug #2732 (anomaly when using the tolerance for writingGravatar herbelin2012-03-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | "f atomic_tac" as a short-hand for "f ltac:(atomic_tac)" for "f" an Ltac function - see Tacinterp.add_primitive_tactic). More precisely, when parsing "f ref" and "ref" is recognized as the name of some TACTIC-EXTEND-defined tactic parsable as an atomic tactic (like "eauto", "firstorder", "discriminate", ...), the code was correct only when a rule of the form `TACTIC EXTEND ... [ "foo" -> ...] END' was given (where "foo" has no arguments in the rule) but not when a rule of the form `TACTIC EXTEND ... [ "foo" tactic_opt(p) -> ...] END' was given (where "foo" had an optional argument in the rule). In particular, "firstorder" was in this case. More generally, if, for an extra argument able to parse the empty string, a rule `TACTIC EXTEND ... [ "foo" my_special_extra_arg(p) -> ...] END' was given, then "foo" was not recognized as parseable as an atomic string (this happened e.g. for "eauto"). This is now also fixed. There was also another bug when the internal name of tactic was not the same as the user-level name of the tactic. This is the reason why "congruence" was not recognized when given as argument of an ltac (its internal name is "cc"). Incidentally removed the redundant last line in the parsing rule for "firstorder". git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@15041 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
* Moving bullets (-, +, *) into stand-alone commands instead of beingGravatar courtieu2011-12-16
| | | | | | | | part of a tactic. WARNING: Coqide needs to be adapted. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@14794 85f007b7-540e-0410-9357-904b9bb8a0f7
* Revert "Check if recursive calls are guarded before printing "Proof completed"."Gravatar pboutill2011-06-10
| | | | | | | | | | | because guard condition is checked at Qed anyway and it can be expensivise to check it twice. Use explicitly "Guarded" if you want this information. But the wrong proof completed is now the right no more subgoals ... Of course, we would like an incrementally checked guard condition one day ! git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@14177 85f007b7-540e-0410-9357-904b9bb8a0f7
* Check if recursive calls are guarded before printing "Proof completed".Gravatar herbelin2011-05-26
| | | | | | (G_decl_mode.pr_open_subgoals still not reactivated...) git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@14158 85f007b7-540e-0410-9357-904b9bb8a0f7
* Made the emacs-U option deprecated. Also removed the old codeGravatar courtieu2011-05-24
| | | | | | | | | inserting special chars for proof by pointing with emacs. This was interacting badly with utf8. It may be implemented back with xml-like tags instead of special chars. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@14154 85f007b7-540e-0410-9357-904b9bb8a0f7
* Fixed a bug causing inconsistent states during proof editting.Gravatar aspiwack2011-04-29
| | | | | | | | | Some toplevel commands (for instance the experimental bullets) are composed of several atomic commands, the failure of one must imply the failure of the whole toplevel command. This commit introduces a system of transaction to that effect. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@14087 85f007b7-540e-0410-9357-904b9bb8a0f7
* Declarative mode: fix escape and return.Gravatar aspiwack2011-04-19
| | | | | | The declarative mode should now work almost like in v8.3 git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@14029 85f007b7-540e-0410-9357-904b9bb8a0f7
* Fixes the weird bug of the declarative proof mode (Czar) both in emacs and coqc.Gravatar aspiwack2011-04-06
| | | | | | Patch submitted by Tom Prince. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@13957 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
* Add (almost) compatibility with camlp4, without breaking support for camlp5Gravatar letouzey2010-05-19
| | | | | | | | | | | | | | | | | | | | | | | The choice between camlp4/5 is done during configure with flags -usecamlp5 (default for the moment) vs. -usecamlp4. Currently, to have a full camlp4 compatibility, you need to change all "EXTEND" and "GEXTEND Gram" into "EXTEND Gram", and change "EOI" into "`EOI" in grammar entries. I've a sed script that does that (actually the converse), but I prefer to re-think it and check a few things before branching this sed into the build mechanism. lib/compat.ml4 is heavily used to hide incompatibilities between camlp4/5 and try to propose a common interface (cf LexerSig / GrammarSig). A few incompatible quotations have been turned into underlying code manually, in order to make the IFDEF CAMLP5 THEN ... ELSE ... END parsable by both camlp4 and 5. See in particular the fate of <:str_item< declare ... end >> Stdpp isn't used anymore, but rather Ploc (hidden behind local module Loc). This forces to use camlp5 > 5.01. git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@13019 85f007b7-540e-0410-9357-904b9bb8a0f7
* static (and shared) camlp4use instead of per-file declarationGravatar letouzey2010-05-19
| | | | git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@13016 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
* Here comes the commit, announced long ago, of the new tactic engine.Gravatar aspiwack2010-04-22
This is a fairly large commit (around 140 files and 7000 lines of code impacted), it will cause some troubles for sure (I've listed the know regressions below, there is bound to be more). At this state of developpement it brings few features to the user, as the old tactics were ported with no change. Changes are on the side of the developer mostly. Here comes a list of the major changes. I will stay brief, but the code is hopefully well documented so that it is reasonably easy to infer the details from it. Feature developer-side: * Primitives for a "real" refine tactic (generating a goal for each evar). * Abstract type of tactics, goals and proofs * Tactics can act on several goals (formally all the focused goals). An interesting consequence of this is that the tactical (. ; [ . | ... ]) can be separated in two tacticals (. ; .) and ( [ . | ... ] ) (although there is a conflict for this particular syntax). We can also imagine a tactic to reorder the goals. * Possibility for a tactic to pass a value to following tactics (a typical example is an intro function which tells the following tactics which name it introduced). * backtracking primitives for tactics (it is now possible to implement a tactical '+' with (a+b);c equivalent to (a;c+b;c) (itself equivalent to (a;c||b;c)). This is a valuable tool to implement tactics like "auto" without nowing of the implementation of tactics. * A notion of proof modes, which allows to dynamically change the parser for tactics. It is controlled at user level with the keywords Set Default Proof Mode (this is the proof mode which is loaded at the start of each proof) and Proof Mode (switches the proof mode of the current proof) to control them. * A new primitive Evd.fold_undefined which operates like an Evd.fold, except it only goes through the evars whose body is Evar_empty. This is a common operation throughout the code, some of the fold-and-test-if-empty occurences have been replaced by fold_undefined. For now, it is only implemented as a fold-and-test, but we expect to have some optimisations coming some day, as there can be a lot of evars in an evar_map with this new implementation (I've observed a couple of thousands), whereas there are rarely more than a dozen undefined ones. Folding being a linear operation, this might result in a significant speed-up. * The declarative mode has been moved into the plugins. This is made possible by the proof mode feature. I tried to document it so that it can serve as a tutorial for a tactic mode plugin. Features user-side: * Unfocus does not go back to the root of the proof if several Focus-s have been performed. It only goes back to the point where it was last focused. * experimental (non-documented) support of keywords BeginSubproof/EndSubproof: BeginSubproof focuses on first goal, one can unfocus only with EndSubproof, and only if the proof is completed for that goal. * experimental (non-documented) support for bullets ('+', '-' and '*') they act as hierarchical BeginSubproof/EndSubproof: First time one uses '+' (for instance) it focuses on first goal, when the subproof is completed, one can use '+' again which unfocuses and focuses on next first goal. Meanwhile, one cas use '*' (for instance) to focus more deeply. Known regressions: * The xml plugin had some functions related to proof trees. As the structure of proof changed significantly, they do not work anymore. * I do not know how to implement info or show script in this new engine. Actually I don't even know what they were suppose to actually mean in earlier versions either. I wager they would require some calm thinking before going back to work. * Declarative mode not entirely working (in particular proofs by induction need to be restored). * A bug in the inversion tactic (observed in some contributions) * A bug in Program (observed in some contributions) * Minor change in the 'old' type of tactics causing some contributions to fail. * Compilation time takes about 10-15% longer for unknown reasons (I suspect it might be linked to the fact that I don't perform any reduction at QED-s, and also to some linear operations on evar_map-s (see Evd.fold_undefined above)). git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12961 85f007b7-540e-0410-9357-904b9bb8a0f7