| Commit message (Collapse) | Author | Age |
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reference was defined as Ident or Qualid, but the qualid type already
permits empty paths. So we had effectively two representations for
unqualified names, that were not seen as equal by eq_reference.
We remove the reference type and replace its uses by qualid.
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- move_location to proofs/logic.
- intro_pattern_naming to Namegen.
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We make the vernacular implementation self-contained in the `vernac/`
directory. To this extent we relocate the parser, printer, and AST to
the `vernac/` directory, and move a couple of hint-related types to
`Hints`, where they do indeed belong.
IMO this makes the code easier to understand, and provides a better
modularity of the codebase as now all things under `tactics` have 0
knowledge about vernaculars.
The vernacular extension machinery has also been moved to `vernac/`,
this will help when #6171 [proof state cleanup] is completed along
with a stronger typing for vernacular interpretation that can
distinguish different types of effects vernacular commands can perform.
This PR introduces some very minor source-level incompatibilities due
to a different module layering [thus deprecating is not
possible]. Impact should be relatively minor.
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We address the easy ones, but they should probably be all removed.
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We turn coqtop "plugins" into standalone executables, which will be
installed in `COQBIN` and located using the standard `PATH`
mechanism. Using dynamic linking for `coqtop` customization didn't
make a lot of sense, given that only one of such "plugins" could be
loaded at a time. This cleans up some code and solves two problems:
- `coqtop` needing to locate plugins,
- dependency issues as plugins in `stm` depended on files in `toplevel`.
In order to implement this, we do some minor cleanup of the toplevel
API, making it functional, and implement uniform build rules. In
particular:
- `stm` and `toplevel` have become library-only directories,
- a new directory, `topbin`, contains the new executables,
- 4 new binaries have been introduced, for coqide and the stm.
- we provide a common and cleaned up way to locate toplevels.
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In a component-based source code organization of Coq `intf` doesn't
fit very well, as it sits in bit of "limbo" between different
components, and indeed, encourages developers to place types in
sometimes random places wrt the hierarchy. For example, lower parts of
the system reference `Vernacexpr`, which morally lives in a pretty
higher part of the system.
We move all the files in `intf` to the lowest place their dependencies
can accommodate:
- `Misctypes`: is used by Declaremod, thus it has to go in `library`
or below. Ideally, this file would disappear.
- `Evar_kinds`: it is used by files in `engine`, so that seems its
proper placement.
- `Decl_kinds`: used in `library`, seems like the right place. [could
also be merged.
- `Glob_term`: belongs to pretyping, where it is placed.
- `Locus`: ditto.
- `Pattern`: ditto.
- `Genredexpr`: depended by a few modules in `pretyping`, seems like
the righ place.
- `Constrexpr`: used in `pretyping`, the use is a bit unfortunate and
could be fixed, as this module should be declared in `interp` which
is the one eliminating it.
- `Vernacexpr`: same problem than `Constrexpr`; this one can be fixed
as it contains stuff it shouldn't. The right place should be `parsing`.
- `Extend`: Is placed in `pretyping` due to being used by `Vernacexpr`.
- `Notation_term`: First place used is `interp`, seems like the right place.
Additionally, for some files it could be worth to merge files of the
form `Foo` with `Foo_ops` in the medium term, as to create proper ADT
modules as done in the kernel with `Name`, etc...
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This is a first step towards moving REPL-specific commands out of the
core layers. In particular, we remove `Quit` and `Drop` from the core
vernacular to specific toplevel-level parsing rules.
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The `reference` type contains some ad-hoc locations in its
constructors, but there is no reason not to handle them with the
standard attribute container provided by `CAst.t`.
An orthogonal topic to this commit is whether the `reference` type
should contain a location or not at all.
It seems that many places would become a bit clearer by splitting
`reference` into non-located `reference` and `lreference`, however
some other places become messier so we maintain the current status-quo
for now.
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`Drop` is implemented using exceptions-as-control flow, so the
toplevel state gets corrupted as `do_vernac` will never return when
`Drop` occurs in the input.
The right fix would be to remove `Drop` from the vernacular and make
it a toplevel-only command, but meanwhile we can just patch the state
in the exception handler.
We also need to keep the global state in `Coqloop` as the main
`coqtop` entry point won't be called by `go ()`.
Fixes #6872.
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This commit was motivated by true spurious conversions arising in my
`to_constr` debug branch.
The changes here need careful review as the tradeoffs are subtle and
still a lot of clean up remains to be done in `vernac/*`.
We have opted for penalize [minimally] the few users coming from true
`Constr`-land, but I am sure we can tweak code in a much better way.
In particular, it is not clear if internalization should take an
`evar_map` even in the cases where it is not triggered, see the
changes under `plugins` for a good example.
Also, the new return type of `Pretyping.understand` should undergo
careful review.
We don't touch `Impargs` as it is not clear how to proceed, however,
the current type of `compute_implicits_gen` looks very suspicious as
it is called often with free evars.
Some TODOs are:
- impargs was calling whd_all, the Econstr equivalent can be either
+ Reductionops.whd_all [which does refolding and no sharing]
+ Reductionops.clos_whd_flags with all as a flag.
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longer use camlp4.
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We organize the toplevel execution as a record and pass it
around. This will be used by future PRs as to for example decouple
goal printing from the classifier.
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... in favor of having Public/Internal sub modules in each and
every module grouping functions according to their intended client.
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Virtually all classifications of vernacular commands (the STM
classifier, "filtered commands", "navigation commands", etc.) were
broken in presence of control vernaculars like Time, Timeout, Fail.
Funny examples of bugs include Time Abort All in coqtop or Time Set Ltac
Debug in CoqIDE.
This change introduces a type separation between vernacular controls and
vernacular commands, together with an "under_control" combinator.
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Over the time, `Command` grew organically and it has become now one of
the most complex files in the codebase; however, its functionality is
well separated into 4 key components that have little to do with each
other.
We thus split the file, and also document the interfaces. Some parts
of `Command` export tricky internals to use by other plugins, and it
is common that plugin writers tend to get confused, so we are more
explicit about these parts now.
This patch depends on #6413.
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Addded by c6d9d4fb142ef42634be25b60c0995b541e86629 ["Adding ability to
put any pattern in binders, prefixed by a quote."] its current
placement as well as the hook don't make a lot of sense.
In particular, they prevent parts of Coq working without linking the
parser.
To this purpose, we need to consolidate the `Constrexpr`
utilities. While we are at it we do so and remove the `Topconstr`
module which is fully redundant with `Constrexpr_ops`.
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The warning created problems as OCaml restored the color printing tags
when printing it, so users doing `Drop` and then `go ()` got color
printing back after the warning.
We should guard the console on `Drop` better, but this requires some
(much needed) refactoring work in the toplevel.
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After `Drop`, `Coqtop.drop_last_doc` will contain the current document
used by `Coqloop`. This is useful for people wanting to restart Coq
after a `Drop`.
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lib/cErrors.ml)
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presence of hints modifying the context and of a "using" clause.
Incidentally opening Hints by default in debugger.
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This is actually not so perfect because of the lambdas in the return
clause which we would not like to look in.
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together with the tactic monad.
The move is not complete yet, because some file candidates for this directory
have almost useless dependencies in other ones that should not be moved.
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the import of goal.ml and, afaiu, ocaml does not provide a way to
refer to a shadowed module.
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and unsatisfiable constraints which were not done in the right environment.
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Add a flag to indicate if we're in the toplevel or debuggger to not try
to retype terms in the wrong environment (and making find_rectype,
get_type_of untraceable). This fixes bug #3638 along with the previous
commit.
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correctly when comparing stacks.
- Disallow Type i <= Prop/Set constraints, that would otherwise allow
constraints that make a universe lower than Prop.
- Fix stm/lemmas that was pushing constraints to the global context,
it is done depending on the constant/variable polymorphic status now.
- Adapt generalized rewriting in Type code to these fixes.
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Maxime Dénès
Emilio Jesus Gallego Arias
Jim Fehrle
Enrico Tassi
Gaëtan Gilbert
Hugo Herbelin
Amin Timany
Pierre Letouzey
Matej Kosik
Matthieu Sozeau
Pierre-Marie Pédrot
Matthieu Sozeau