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2015-11-02Follow-up fix on Enrico's 6e376c8097d75b6e, with Enrico.Maxime Dénès
2015-11-02STM: fix undo into a branch containing side effectsEnrico Tassi
The "master" label used to be reset to the wrong id
2015-11-02STM: never reopen a branch containing side effectsEnrico Tassi
2015-10-30Merge branch 'v8.5'Pierre-Marie Pédrot
2015-10-30Add a way to get the right fix_exn in external vernacular commandsMatthieu Sozeau
involving Futures.
2015-10-29Handle side-effects of Vernacular commands inside proofs better, so thatMatthieu Sozeau
universes are declared correctly in the enclosing proofs evar_map's.
2015-10-29Merge branch 'v8.5'Pierre-Marie Pédrot
2015-10-28Avoid type checking private_constants (side_eff) again during Qed (#4357).Enrico Tassi
Side effects are now an opaque data type, called private_constant, you can only obtain from safe_typing. When add_constant is called on a definition_entry that contains private constants, they are either - inlined in the main proof term but not re-checked - declared globally without re-checking them As a safety measure, the opaque data type contains a pointer to the revstruct (an internal field of safe_env that changes every time a new constant is added), and such pointer is compared with the current value store in safe_env when the private_constant is inlined. Only when the comparison is successful the private_constant is not re-checked. Otherwise else it is. In short, we accept into the kernel private constant only when they arrive in the very same order and on top of the very same env they arrived when we fist checked them. Note: private_constants produced by workers never pass the safety measure (the revstruct pointer is an Ephemeron). Sending back the entire revstruct is possible but: 1. we lack a way to quickly compare two revstructs, 2. it can be large.
2015-10-19Merge branch 'v8.5'Pierre-Marie Pédrot
2015-10-18Miscellaneous typos, spacing, US spelling in comments or variable names.Hugo Herbelin
2015-10-17Clarifying and documenting the UState API.Pierre-Marie Pédrot
2015-10-15Merge branch 'v8.5'Pierre-Marie Pédrot
2015-10-14When typechecking a lemma statement, try to resolve typeclasses beforeMatthieu Sozeau
failing for unresolved evars (regression).
2015-10-10Merge branch 'v8.5'Pierre-Marie Pédrot
2015-10-09STM: Work around an occasional crash in dot (debug output)Alec Faithfull
The splines=ortho option seems to make dot crash sometimes, so this commit removes it from the STM debugging output
2015-10-09TQueue: Allow some tasks to be saved when clearing a TQueueAlec Faithfull
2015-10-09TQueue: Expose the length of TQueuesAlec Faithfull
2015-10-09STM: Added functions for saving and restoring the internal stateAlec Faithfull
PIDEtop needs these to implement its new transaction mechanism
2015-10-09STM: Pass exception information to unreachable_state_hook functionsAlec Faithfull
This lets hooks treat different exceptions in different ways; in particular, user interrupts can now be safely ignored
2015-10-09Merge branch 'v8.5'Pierre-Marie Pédrot
2015-10-08Axioms now support the universe binding syntax.Pierre-Marie Pédrot
We artificially restrict the syntax though, because it is unclear of what the semantics of several axioms in a row is, in particular about the resolution of remaining evars.
2015-10-08Proof using: let-in policy, optional auto-clear, forward closure*Enrico Tassi
- "Proof using p*" means: use p and any section var about p. - Simplify the grammar/parser for proof using <expression>. - Section variables with a body (let-in) are pulled in automatically since they are safe to be used (add no extra quantification) - automatic clear of "unused" section variables made optional: Set Proof Using Clear Unused. since clearing section hypotheses does not "always work" (e.g. hint databases are not really cleaned) - term_typing: trigger a "suggest proof using" message also for Let theorems.
2015-10-08Spawn: use each socket exclusively for writing or readingEnrico Tassi
According to http://caml.inria.fr/mantis/view.php?id=5325 you can't use the same socket for both writing and reading. The result is lockups (may be fixed in 4.03).
2015-10-08STM: for PIDE based UIs, edit_at requires no Reach.known_stateEnrico Tassi
2015-10-08STM: fix backtrace handlingEnrico Tassi
2015-10-02Merge branch 'v8.5'Pierre-Marie Pédrot
2015-10-02Merge branch 'v8.5'Pierre-Marie Pédrot
2015-10-02Univs: fix semantics of Type in proof mode in universe-polymorphic modeMatthieu Sozeau
Allowing universes to be instantiated if the body of the proof requires it (the levels stay flexible). Not allowed for non-polymorphic cases, to be compatible with the stm's invariant that the type should not change.
2015-10-02Univs: fix handling of side effects/delayed proofsMatthieu Sozeau
- When there are side effects which might enrich the initial universes of a proof, keep the initial and refined universe contexts apart like for delayed proofs, ensuring universes are declared before they are used in the right order. - Fix undefined levels in proof statements so that they can't be lowered to Set by a subsequent, delayed proof.
2015-10-02Univs: fix many evar_map initializations and leaks.Matthieu Sozeau
2015-09-29Remove some uses of Loadpath.get_paths.Guillaume Melquiond
The single remaining use is in library/states.ml. This use should be reviewed, as it is most certainly broken. The other uses of Loadpath.get_paths did not disappear by miracle though. They were replaced by a new function Loadpath.locate_file which factors all the uses of the function. This function should not be used as it is as broken as Loadpath.get_paths, by definition. Vernac.load_vernac now takes a complete path rather than looking up for the file. That is the way it was used most of the time, so the lookup was unnecessary. For instance, Vernac.compile was calling Library.start_library which already expected a complete path. Another consequence is that System.find_file_in_path is almost no longer used (except for Loadpath.locate_file, obviously). The two remaining uses are System.intern_state (used by States.intern_state, cf above) and Mltop.dir_ml_load for dynamically loading compiled .ml files.
2015-09-26Hardening the API of evarmaps.Pierre-Marie Pédrot
The evar counter has been moved from Evarutil to Evd, and all functions in Evarutil now go through a dedicated primitive to create a fresh evar from an evarmap.
2015-09-25Add a flag in `VernacFixpoint` and `VernacCoFixpoint` to control assuming ↵Arnaud Spiwack
guardedness.
2015-09-20Rich printing of messages.Pierre-Marie Pédrot
2015-09-17Merge branch 'v8.5' into trunkMaxime Dénès
2015-09-15STM: Reset takes Ltac <ident> into account (Close #4316)Enrico Tassi
2015-09-14Univs: Add universe binding lists to definitionsMatthieu Sozeau
... lemmas and inductives to control which universes are bound and where in universe polymorphic definitions. Names stay outside the kernel.
2015-09-08More potentialities in proof_terminators.Pierre-Marie Pédrot
2015-09-08Opacifying the proof_terminator type.Pierre-Marie Pédrot
2015-09-01STM: save a full state for queries.Enrico Tassi
In PIDE based UIs queries can be delegated too, hence to speed up things I was saving a shallow state. Unfortunately a shallow state breaks section/modules commands, and a query can be the last entry of a section/module. (A shallow state does essentially drop the libstack). The easy solution is to save a complete state. A better one would be to refine the static analysis of the document and decide which kind of saved state one needs.
2015-08-19Removing code duplication in Lemmas.Pierre-Marie Pédrot
2015-08-19Documentation by giving a name to a large type.Pierre-Marie Pédrot
2015-08-14Revert commit 18796b6aea453bdeef1ad12ce80eeb220bf01e67, close 3080Jason Gross
This reverts 18796b6aea453bdeef1ad12ce80eeb220bf01e67 (Slight change in the semantics of arguments scopes: scopes can no longer be bound to Funclass or Sortclass (this does not seem to be useful)). It is useful to have function_scope for, e.g., function composition. This allows users to, e.g., automatically interpret ∘ as morphism composition when expecting a morphism of categories, as functor composition when expecting a functor, and as function composition when expecting a function. Additionally, it is nicer to have fewer special cases in the OCaml code, and give more things a uniform syntax. (The scope type_scope should not be special-cased; this change is coming up next.) Also explicitly define [function_scope] in theories/Init/Notations.v. This closes bug #3080, Build a [function_scope] like [type_scope], or allow [Bind Scope ... with Sortclass] and [Bind Scope ... with Funclass] We now mention Funclass and Sortclass in the documentation of [Bind Scope] again.
2015-07-30STM: make multiple, admitted, nested proofs work (fix #4314)Enrico Tassi
2015-07-30STM: emit a warning when a QED/Admitted proof contains a nested lemmaEnrico Tassi
2015-07-30STM: fix backtrack in presence of nested, immediate, proofsEnrico Tassi
2015-07-30STM: remove assertion not being true for nested, immediate, proofs (#4313)Enrico Tassi
2015-07-29Fixing what seems to be a typo.Hugo Herbelin
2015-07-28ShowScript: as 8.4 w.r.t. unnamed proofs and non tactic vernacs (fix #4308)Enrico Tassi
2015-07-14STM: fix a "exn with no safe id attached" error on a failing queryEnrico Tassi
It showed up at the CoqCS.