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Porting them is still to be done, but at least we don't rely on the wrapper
everywhere.
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Add headers to a few files which were missing them.
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We also remove trailing whitespace.
Script used:
```bash
for i in `find . -name '*.ml' -or -name '*.mli' -or -name '*.mlg'`; do expand -i "$i" | sponge "$i"; sed -e's/[[:space:]]*$//' -i.bak "$i"; done
```
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Matthieu Sozeau explained how to fix this.
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The current situation is a mess, some functions set it by default, but other
no. Making it mandatory ensures that the expected value is the correct one.
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Unknown impact so no tests.
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Kernel should be mostly correct, higher levels do random stuff at
times.
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This is for consistency with "rewrite {x..} y"
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This commit implements the following intro patterns:
Temporary "=> +"
"move=> + stuff" ==== "move=> tmp stuff; move: tmp"
It preserves the original name.
"=>" can be chained to force generalization as in
"move=> + y + => x z"
Tactics as views "=> /ltac:(tactic)"
Supports notations, eg "Notation foo := ltac:(bla bla bla). .. => /foo".
Limited to views on the right of "=>", views that decorate a tactic
as move or case are not supported to be tactics.
Dependent "=> >H"
move=> >H ===== move=> ???? H, with enough ? to
name H the first non-dependent assumption (LHS of the first arrow).
TC isntances are skipped.
Block intro "=> [^ H] [^~ H]"
after "case" or "elim" or "elim/v" it introduces in one go
all new assumptions coming from the eliminations. The names are
picked from the inductive type declaration or the elimination principle
"v" in "elim/v" and are appended/prepended the seed "H"
The implementation makes crucial use of the goal_with_state feature of
the tactic monad. For example + schedules a generalization to be performed
at the end of the intro pattern and [^ .. ] reads the name seeds from
the state (that is filled in by case and elim).
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We remove a few aliases present in the lower layers
[`Genintern/Tactypes`] from `Tacexpr`.
IMHO this enlarges the API for no good purpose, and difficults
analysis.
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We remove the `Proof_types` file which was a trivial stub, we also
cleanup a few layers of aliases.
This is not a lot but every little step helps.
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Deletes the SsrProfiling and SsrMatchingProfiling options
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- Look constants up using registered names
- As lazily as possible
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In #6092, `global_reference` was moved to `kernel`. It makes sense to
go further and use the current kernel style for names.
This has a good effect on the dependency graph, as some core modules
don't depend on library anymore.
A question about providing equality for the GloRef module remains, as
there are two different notions of equality for constants. In that
sense, `KerPair` seems suspicious and at some point it should be
looked at.
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Ssripats and Ssrview are now written in the Tactic Monad.
Ssripats implements the => tactical.
Ssrview implements the application of forward views.
The code is, according to my tests, 100% backward compatible.
The code is much more documented than before.
Moreover the "ist" (ltac context) used to interpret views is the correct
one (the one at ARGUMENT EXTEND interp time, not the one at TACTIC
EXTEND execution time). Some of the code not touched by this commit
still uses the incorrect ist, so its visibility in TACTIC EXTEND
can't be removed yet.
The main changes in the code are:
- intro patterns are implemented using a state machine (a goal comes
with a state). Ssrcommon.MakeState provides an easy way for a tactic
to enrich the goal with with data of interest, such as the set of
hyps to be cleared. This cleans up the old implementation that, in
order to thread the state, that to redefine a bunch of tclSTUFF
- the interpretation of (multiple) forward views uses the state to
accumulate intermediate results
- the bottom of Sscommon collects a bunch of utilities written in the
tactic monad. Most of them are the rewriting of already existing
utilities. When possible the old version was removed.
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We do up to `Term` which is the main bulk of the changes.
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Unluckily, this forces replacing a lot of code in plugins, because the API
defined the type of goals and tactics in Proof_type, and by the no-alias rule,
this was the only one. But Proof_type was already implicitly deprecated, so
that the API should have relied on Tacmach instead.
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