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The first part (e.g. register_bignumeral_interpretation) deals only with
the interp/uninterp closures. It should typically be done as a side
effect during a syntax plugin loading. No prim notation are active yet
after this phase.
The second part (enable_prim_token_interpretation) activates the prim
notation. It is now correctly talking to Summary and to the LibStack.
To avoid "phantom" objects in libstack after a mere Require, this
second part should be done inside a Mltop.declare_cache_obj
The link between the two parts is a prim_token_uid (a string), which
should be unique for each primitive notation. When this primitive
notation is specific to a scope, the scope_name could be used as uid.
Btw, the list of "patterns" for detecting when an uninterpreter should
be considered is now restricted to a list of global_reference
(inductive constructors, or injection functions such as IZR).
The earlier API was accepting a glob_constr list, but was actually
only working well for global_reference.
A minimal compatibility is provided (declare_numeral_interpreter),
but is discouraged, since it is known to store uncessary objects
in the libstack.
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This is prim token notations for inductive *types*, not values.
So we're speaking of a scope where 0 is the type nat, 1 is the type bool, etc.
To my knowledge, this feature hasn't ever been used, and is very unlikely
to be used ever, so let's clean the code a bit by removing it.
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This cleanup prepares for forthcoming synchronization of prim_token_interpreter
wrt to Summary. These chains of prim_token_interpreter were anyway never used,
only one interpreter was declared per numeral scope.
After sync wrt Summary, we'll anyway be able to backtrack to a previous
interpreter.
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- New command "Declare Custom Entry bar".
- Entries can have levels.
- Printing is done using a notion of coercion between grammar
entries. This typically corresponds to rules of the form
'Notation "[ x ]" := x (x custom myconstr).' but also
'Notation "{ x }" := x (in custom myconstr, x constr).'.
- Rules declaring idents such as 'Notation "x" := x (in custom myconstr, x ident).'
are natively recognized.
- Rules declaring globals such as 'Notation "x" := x (in custom myconstr, x global).'
are natively recognized.
Incidentally merging ETConstr and ETConstrAsBinder.
Noticed in passing that parsing binder as custom was not done as in
constr.
Probably some fine-tuning still to do (priority of notations,
interactions between scopes and entries, ...). To be tested live
further.
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The upper layers still need a mapping constant -> projection, which is
provided by Recordops.
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No reason not to collapse inner applications with explicit arguments.
This is compatible with the ad hoc encoding of @f as GApp(f,[])/NApp(f,[]).
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case of missing record field
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While we were adding a new field into `QuestionMark`, we
decided to go ahead and refactor the constructor to hold
an actual record. This record now holds the name, obligations, and
whether the evar represents a missing record field.
This is used to provide better error messages on missing record
fields.
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Fixes #8067. This is becoming the default in many developments, so it
makes sense to require it too, both for Coq and for Plugins.
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constr in Constr
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This shall eventually allow to use contexts of declarations in the
definition of the "Case" constructor.
Basically, this means that Constr now includes Context and that the
"t" types of Context which were specialized on constr are not defined
in Constr (unfortunately using a heavy boilerplate).
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We fix the issue by removing terms of the substitutions which have
free variables and are thus not interpretable in the context of the
"ltac:" subterm.
This remains rather ad hoc, since, in an expression "Notation f x :=
ltac:(foo)", we interpret "x" at calling time of "foo" rather than at
use time of "x" in foo, even if "x" is not necessary.
We could also imagine that binders in the ltac expressions are then
interpreted but that would start to be (very) complicated.
Note that this will presumably "fix" ltac2 quotations at the same
time.
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This brings more compatibility with handling of mutual primitive records
in the kernel.
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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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This field was not used inside the kernel and not used in
performance-critical code where caching is essential, so we extrude
the code that computes it out of the kernel.
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This reduces kernel bloat and removes code from the TCB, as compatibility
projections are now retypechecked as normal definitions would have been.
This should have no effect on efficiency as this only happens once at
definition time.
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We move the last 3 types to more adequate places.
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This gets `Tactypes` closer to `tactics/`, however some legacy stuff
blocks it in `proofs`. We consider that is satisfactory for now.
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- move_location to proofs/logic.
- intro_pattern_naming to Namegen.
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Redundancy between finding section variables in both interp_var and
interp_qualid could probably be cleaned.
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patterns with different variables
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Could still be made more detailed with more time.
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Previously to this patch, `Notation_term` contained information about
both parsing and notation interpretation.
We split notation grammar to a file `parsing/notation_gram` as to make
`interp/` not to depend on some parsing structures such as entries.
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Continuing the interface cleanup we place `Constrexpr` in the
internalization module, which is the one that eliminates it.
This slims down `pretyping` considerably, including removing the
`Univdecls` module which existed only due to bad dependency ordering
in the first place. Thanks to @ Skyskimmer we also remove a duplicate
`univ_decl` definition among `Misctypes` and `UState`.
This is mostly a proof of concept yet as it depends on quite a few
patches of the tree. For sure some tweaks will be necessary, but it
should be good for review now.
IMO the tree is now in a state where we can could easy eliminate more
than 10 modules without any impact, IMHO this is a net saving API-wise
and would help people to understand the structure of the code better.
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We remove most of what was deprecated in `Term`. Now, `intf` and
`kernel` are almost deprecation-free, tho I am not very convinced
about the whole `Term -> Constr` renaming but I'm afraid there is no
way back.
Inconsistencies with the constructor policy (see #6440) remain along
the code-base and I'm afraid I don't see a plan to reconcile them.
The `Sorts` deprecation is hard to finalize, opening `Sorts` is not a
good idea as someone added a `List` module inside it.
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We address the easy ones, but they should probably be all removed.
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in CArray
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There were a few spurious dependencies on the `Vernac` AST in the
pretyper, we remove them and move `Vernacexpr` and `Extend` to parsing,
where they do belong more.
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This API is a bit strange, I expect it will change at some point.
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