| Commit message (Collapse) | Author | Age |
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This removes quite a few unsafe casts. Unluckily, I had to reintroduce
the old non-module based names for these data structures, because I could
not reproduce easily the same hierarchy in EConstr.
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We make mli files look to what they were looking before the move to EConstr
by opening this module.
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The structure of the Context module was refined in such a way that:
- Types and functions related to rel-context declarations were put into the Context.Rel.Declaration module.
- Types and functions related to rel-context were put into the Context.Rel module.
- Types and functions related to named-context declarations were put into the Context.Named.Declaration module.
- Types and functions related to named-context were put into the Context.Named module.
- Types and functions related to named-list-context declarations were put into Context.NamedList.Declaration module.
- Types and functions related to named-list-context were put into Context.NamedList module.
Some missing comments were added to the *.mli file.
The output of ocamldoc was checked whether it looks in a reasonable way.
"TODO: cleanup" was removed
The order in which are exported functions listed in the *.mli file was changed.
(as in a mature modules, this order usually is not random)
The order of exported functions in Context.{Rel,Named} modules is now consistent.
(as there is no special reason why that order should be different)
The order in which are functions defined in the *.ml file is the same as the order in which they are listed in the *.mli file.
(as there is no special reason to define them in a different order)
The name of the original fold_{rel,named}_context{,_reverse} functions was changed to better indicate what those functions do.
(Now they are called Context.{Rel,Named}.fold_{inside,outside})
The original comments originally attached to the fold_{rel,named}_context{,_reverse} did not full make sense so they were updated.
Thrown exceptions are now documented.
Naming of formal parameters was made more consistent across different functions.
Comments of similar functions in different modules are now consistent.
Comments from *.mli files were copied to *.ml file.
(We need that information in *.mli files because that is were ocamldoc needs it.
It is nice to have it also in *.ml files because when we are using Merlin and jump to the definion of the function,
we can see the comments also there and do not need to open a different file if we want to see it.)
When we invoke ocamldoc, we instruct it to generate UTF-8 HTML instead of (default) ISO-8859-1.
(UTF-8 characters are used in our ocamldoc markup)
"open Context" was removed from all *.mli and *.ml files.
(Originally, it was OK to do that. Now it is not.)
An entry to dev/doc/changes.txt file was added that describes how the names of types and functions have changed.
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This reverts commit 07620386b3c1b535ee7e43306a6345f015a318f0.
Very sorry not ready.
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the return clause and of the branches in a "match", computing them
automatically when using the "at" clause of pattern, destruct, ...
In principle, this is a source of incompatibilities in the numbering,
since the internal binders of a "match" are now skipped. We shall deal
with that later on.
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The main change is that selection of subterm is made similar whether
the given term is fully applied or not.
- The selection of subterm now works as follows depending on whether
the "at" is given, of whether the subterm is fully applied or not,
and whether there are incompatible subterms matching the pattern. In
particular, we have:
"at" given
| subterm fully applied
| | incompatible subterms
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Y Y - it works like in 8.4
Y N - this was broken in 8.4 ("at" was ineffective and it was finding
all subterms syntactically equal to the first one which matches)
N Y Y it now finds all subterms like the first one which matches
while in 8.4 it used to fail (I hope it is not a too risky in-draft
for a semantics we would regret...) (e.g. "destruct (S _)" on
goal "S x = S y + S x" now selects the two occurrences of "S x"
while it was failing before)
N Y N it works like in 8.4
N N - it works like in 8.4, selecting all subterms like the
first one which matches
- Note that the "historical" semantics, when looking for a subterm, to
select all subterms that syntactically match the first subterm to
match the pattern (looking from left to right) is now internally called
"like first".
- Selection of subterms can now find the type by pattern-matching (useful e.g.
for "induction (nat_rect _ _ _ _)")
- A version of Unification.w_unify w/o any conversion is used for
finding the subterm: it could be easily replaced by an other
matching algorithm.
In particular, "destruct H" now works on a goal such as "H:True -> x<=y |- P y".
Secondary change is in the interpretation of terms with existential
variables:
- When several arguments are given, interpretation is delayed at the
time of execution
- Because we aim at eventually accepting "edestruct c" with unresolved
holes in c, we need the sigma obtained from c to be an extension of
the sigma of the tactics, while before, we just type-checked c
independently of the sigma of the tactic
- Finishing the resolution of evars (using type classes, candidates,
pending conversion problems) is made slightly cleaner: it now takes
three states: a term is evaluated in state sigma, leading to state
sigma' >= sigma, with evars finally solved in state sigma'' >=
sigma'; we solve evars in the diff of sigma' and sigma and report
the solution in sigma''
- We however renounce to give now a success semantics to "edestruct c"
when "c" has unresolved holes, waiting instead for a decision on
what to do in the case of a similar eapply (see mail to coqdev).
An auxiliary change is that an "in" clause can be attached to each component
of a "destruct t, u, v", etc.
Incidentally, make_abstraction does not do evar resolution itself any longer.
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projections with their eta-expanded constant form.
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into a specific new cleaned file find_subterm.ml.
This makes things clearer but also solves some dependencies problem
between Evd, Termops and Pretype_errors.
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Théo Zimmermann
Pierre-Marie Pédrot
Gaetan Gilbert
Maxime Dénès
Matej Kosik
Hugo Herbelin
Matthieu Sozeau