| Commit message (Collapse) | Author | Age |
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command is mapped.
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Originally, "VernacTime" and "VernacRedirect" were defined like this:
type vernac_expr =
...
| VernacTime of vernac_list
| VernacRedirect of string * vernac_list
...
where
type vernac_list = located_vernac_expr list
Currently, that list always contained one and only one element.
So I propose changing the definition of these two variants in the following way:
| VernacTime of located_vernac_expr
| VernacRedirect of string * located_vernac_expr
which covers all our current needs and enforces the invariant
related to the number of commands that are part of the
"VernacTime" and "VernacRedirect" variants.
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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.
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File system.ml seemed like a better choice than util.ml for sharing the
code, but it was bringing a bunch of useless dependencies to the IDE.
There are presumably several other tools that would benefit from using
open_utf8_file_in instead of open_in, e.g. coqdoc.
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verbose flag.
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The first part only contains the summary of the library, while the second
one contains the effective content of it.
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Trying to untangle the flags:
coqc -verbose coqtop -compile-verbose are used just to print the commands run;
-quiet, -silent, Set Silent, Unset Silent control Flags.verbose flag.
Flags.verbose controls many prints that are expected to be made in
interactive mode. E.g. "Proof" or "tac" prints goals if such flag is
true. To flip it, one can "Set/Unset Silent" in both coqtop and coqc
mode.
It is still messy, but the confusion between -verbose and Flags.verbose
has gone (I must have identified the two things with my initial STM
patch)
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For now, warnings are still ignored by default, but this may change. This
commit at least allows to print them whenever desired. The -w syntax is
also opened to future additions to further control the display of
warnings.
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In compiler mode, only vernac.ml knows the current file name.
Stm.process_error_hook moved from Vernacentries to Vernac to
be bale to properly enrich the exception with the current file
name (if any).
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The command [Redirect "filename" (...)] redirects all the output of
[(...)] to file "filename.out". This is useful for storing the results of
an [Eval compute], for redirecting the results of a large search, for
automatically generating traces of interesting developments, and so on.
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Since error messages are ultimately passed to Format, which has its own
buffers for concatenating strings, using concatenation for preparing error
messages just doubles the workload and increases memory pressure.
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Instead of modifying exceptions to wear additional information, we instead use
a dedicated type now. All exception-using functions were modified to support
this new type, in particular Future's fix_exn-s and the tactic monad.
To solve the problem of enriching exceptions at raise time and recover this
data in the try-with handler, we use a global datastructure recording the
given piece of data imperatively that we retrieve in the try-with handler.
We ensure that such instrumented try-with destroy the data so that there
may not be confusion with another exception. To further harden the correction
of this structure, we also check for pointer equality with the last raised
exception.
The global data structure is not thread-safe for now, which is incorrect as
the STM uses threads and enriched exceptions. Yet, we splitted the patch in
two parts, so that we do not introduce dependencies to the Thread library
immediatly. This will allow to revert only the second patch if ever we
switch to OCaml-coded lightweight threads.
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Goal printing was partially broken. Some commands in vernacentries
were printing, but not all of them. Moreover an unlucky combination
of `Flags.verbosely (fun () -> interp "Set Silent")` was making the
silent flag not settable anymore.
Now STM always print the open goals after a command when run in interactive
mode via coqtop or emacs. More modern GUI do ask for the goals.
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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
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It grouped a list of vernac commands as a single one. It was undocumented and unused (and apparently unusable, because the intermediate '.' seem to be parsed as end of phrases by the interfaces). The main application could be to group the commands for Time. There is room for such an application in the syntax, but I unplugged the syntax for the time being.
The syntax would conflict with the use of a standalone dispatching tactical [ t1 | t2 | … | tn ].
I took the opportunity to separate the code dedicated to lists of commands in a separate type from vernac_expr.
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Stm used to delegate every proof when it was possible, but this may
be a bad idea. Small proofs may take less time than the overhead
delegation implies (marshalling, etc...).
Now it delegates only proofs that take >= 1 second.
By default a proof takes 1 second (that may be wrong).
If the file was compiled before, it reuses the data stored in the .aux
file and assumes the timings are still valid.
After a proof is checked, Coq knows how long it takes for real, so it
wont predict it wrong again (when the user goes up and down in the
file for example).
CoqIDE now sends to Coq, as part of the init message, the file name
so that Coq can load the .aux file.
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Universes that are computed in the vi2vo step are not part of the
outermost module stocked in the vo file. They are part of the
Library.seg_univ segment and are hence added to the safe env when
the vo file is loaded.
The seg_univ has been augmented. It is now:
- an array of universe constraints, one for each constant whose opaque
body was computed in the vi2vo phase. This is useful only to print
the constants (and its associated constraints).
- a union of all the constraints that come from proofs generated in the
vi2vo phase. This is morally the missing bits in the toplevel module
body stocked in the vo file, and is there to ease the loading of
a .vo file (obtained from a .vi file).
- a boolean, false if the file is incomplete (.vi) and true if it is
complete (.vo obtained via vi2vo).
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The removed code isn't used locally and isn't exported in the signature
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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.
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To obtain a.vo one can now:
1) coqtop -quick -compile a
2) coqtop -vi2vo a.vi
To make that possible the .vo structure has been complicated. It is now
made of 5 segments.
| vo | vi | vi2vo | contents
--------------+------+-----+-------+------------------------------------
lib | Yes | Yes | Yes | libstack (modules, notations,...)
opauqe_univs | No | Yes | Yes | constraints coming from opaque proofs
discharge | No | Yes | No | data needed to close sections
tasks | No | Yes | No | STM tasks to produce proof terms
opaque_proofs | Yes | Yes | Yes | proof terms
--------------+------+-----+-------+------------------------------------
This means one can load only the strictly necessay parts. Usually one
does not load the tasks segment of a .vi nor the opaque_proof segment of
a .vo, unless one is turning a .vi into a .vo, in which case he load
all the segments.
Optional segments are marshalled as None. But for lib, all segments
are Array.t of:
| type
--------------+---------------------------------------------------------
lib | a list of Libobject.obj (n'importe quoi)
opauqe_univs | Univ.consraints Future.computation
discharge | what Cooking.cook_constr needs
tasks | Stm.tasks (a task is system_state * vernacexpr list)
opaque_proofs | Term.constr Future.computation
--------------+------+-----+-------+------------------------------------
Invariant: all Future.computation in a vo file (obtained by a vi2vo
compilation or not) have been terminated with Future.join (or
Future.sink). This means they are values (inside a box).
This invariant does not hold for vi files. E.g. opauqe_proofs can be
dangling Future.computation (i.e. NotHere exception). The vi2vo
compilation step will replace them by true values.
Rationale for opaque_univs: in the vi2vo transformation we want to reuse
the lib segment. Hence the missing pieces have to be put on the side,
not inside. Opaque proof terms are already in a separte segment.
Universe constraints are not, hence the new opauqe_univs segment. Such
segment, if present in a .vo file, is always loaded, and
Declare.open_constant will add to the environment the constraints stored
there. For regular constants this is not necessay since the constraints
are already in their enclosing module (and also in the constant_body).
With vi2vo the constraints coming from the proof are not in the
constant_body (hence not in the enclosing module) but there and are
added to the environment explicitly by Declare.open_constant.
Rationale for discharge: vi2vo produces a proof term in its original
context (in the middle of a section). Then it has to discharge the
object. This segment contains the data that is needed in order to do
so. It is morally the input that Lib.close_section passes to Cooking
(via the insane rewinding of libstack, GlobalRecipe, etc chain).
Checksums: the checksum of .vi and a .vo obtain from it is the same.
This means that if if b.vo has been compiled using a.vi, and then
a.vi is compiled into a.vo, Require Import b works (and recursively
loads a.vo).
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The command `coqtop -check-vi-tasks 1,4,2 a` checks tasks 1 4 2,
in this precise order, stored in a.vi.
The command `coqtop -schedule-vi-checking 4 a b c` reads {a,b,c}.vi
and .{a,b,c}.aux and spits 4 command lines to check all the tasks in
{a,b,c}.vi trying to equally partition the job between the 4 workers,
that can indeed be run in parallel.
The aux file contains the time that it took to check the proofs stored
in the .vi files last time the file was fully checked.
This user interface is still very rough, it should probably run the
workers instead of just printing their command line.
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If a proof has no "Proof using" but we are building a .vi and
the aux file contains such piece of info, we use it to process
the proof asynchronously.
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File format:
The .vo file format changed:
- after the magic number there are 3 segments. A segment is made of 3
components: bynary int, an ocaml value, a digest. The binary int
is the position of the digest, so that one can skip the value without
unmarshalling it
- the first segment is the library, as before
- the second segment is the STM task list
- the third segment is the opaque table, as before
A .vo file has a complete opaque table (all proof terms are there).
A .vi file follows the same format of a .vo file, but some entries
in the opaque table are missing. A proof task is stocked instead.
Utilities:
coqc: option -quick generates a .vi insted of a .vo
coq_makefile: target quick to generate all .vi
coqdep: generate deps for .vi files too
votour: can browse .vi files too, the first question is which segment
should be read
coqchk: rejects .vi files
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git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16951 85f007b7-540e-0410-9357-904b9bb8a0f7
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git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16950 85f007b7-540e-0410-9357-904b9bb8a0f7
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git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16949 85f007b7-540e-0410-9357-904b9bb8a0f7
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git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16815 85f007b7-540e-0410-9357-904b9bb8a0f7
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git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16770 85f007b7-540e-0410-9357-904b9bb8a0f7
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git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16769 85f007b7-540e-0410-9357-904b9bb8a0f7
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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
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git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16679 85f007b7-540e-0410-9357-904b9bb8a0f7
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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
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git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16510 85f007b7-540e-0410-9357-904b9bb8a0f7
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States.freeze takes ~marshallable:bool, so that (only) when we want to
marshal data to disk/network we can ask the freeze functions of the
summary to force lazy values. The flag is propagated to Lib and Summary.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16478 85f007b7-540e-0410-9357-904b9bb8a0f7
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This is a no op for standard Coq, but is important for
Paral-ITP, since saving the library to disk forces all
frozen computations, and some of them may spit out glob
data, so the file descriptor must be valid.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16475 85f007b7-540e-0410-9357-904b9bb8a0f7
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I did forget a ; while dealing with conflicts in git-svn rebase
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16458 85f007b7-540e-0410-9357-904b9bb8a0f7
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git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16452 85f007b7-540e-0410-9357-904b9bb8a0f7
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git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16444 85f007b7-540e-0410-9357-904b9bb8a0f7
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git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16418 85f007b7-540e-0410-9357-904b9bb8a0f7
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Matej Kosik
Guillaume Melquiond
Pierre-Marie Pédrot
Hugo Herbelin
Enrico Tassi
Clément Pit--Claudel
Maxime Dénès
Arnaud Spiwack
Pierre Letouzey
ppedrot
gareuselesinge
letouzey