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We make `declaration_hook`s optional arguments everywhere, and thus we
avoid some "fake" functions having to be passed.
This identifies positively the code really using hooks [funind,
rewrite, coercions, program, and canonicals] and helps moving toward
some hope of reification.
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Otherwise
~~~
Unset Strict Universe Declaration.
Section bar.
Let baz := Type@{u}.
Definition k := baz.
End bar.
Section bar.
Let baz := Type@{u}.
Definition k' := baz.
End bar.
~~~
is broken (and has been since we stopped checking for repeated section names).
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In particular, we highlight the similarities and differences between
local and global definitions.
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"Declaration" hooks can be polymorphic on their return type, however
this facility doesn't seem used in the codebase.
We thus remove the polymorphism with the hope to be able to reify the
control later on.
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- Regularly declared for for polymorphic constants
- Declared globally for monomorphic constants.
E.g mono@{i} := Type@{i} is printed as
mono@{mono.i} := Type@{mono.i}.
There can be a name clash if there's a module and a constant of the
same name. It is detected and is an error if the constant is first
but is not detected and the name for the constant not
registered (??) if the constant comes second.
Accept VarRef when registering universe binders
Fix two problems found by Gaëtan where binders were not registered properly
Simplify API substantially by not passing around a substructure of an
already carrier-around structure in interpretation/declaration code of
constants and proofs
Fix an issue of the stronger restrict universe context + no evd leak
This is uncovered by not having an evd leak in interp_definition, and
the stronger restrict_universe_context. This patch could be backported
to 8.7, it could also be triggered by the previous restrict_context I
think.
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This reduces conversions between ContextSet/UContext and encodes
whether we are polymorphic by which constructor we use rather than
using some boolean.
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This was (once again) a spurious inter-dependency, that we solve by
introducing a new module with the proper functionality. This helps in
cleaning up the code. Note that no code was changed, other than
removing the setting of the references.
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