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infinite eta-expansion)
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get_lexer_state.
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by Travis.
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serialization.
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Otherwise it is possible to detect errors that are not fixed by git
rebase since that works per-commit.
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This intermediate representation serves two purposes:
1- It is a preliminary step for primitive machine integers, as iterators
will be compiled to Clambda.
2- It makes the VM compilation passes closer to the ones of
native_compute. Once we unifiy the representation of values, we should
be able to factorize the lambda-code generation between the two
compilers, as well as the reification code.
This code was written by Benjamin Grégoire and myself.
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More precisely when matching
"f t" with "(fun ?x => .. ((fun ?x' => ?y) ?z') ..) ?z"
do not allow expansion of f since otherwise, we recursively have to
match "f t" with the same pattern.
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We follow the suggestions in #402 and turn uses of `Loc.located` in
`vernac` into `CAst.t`. The impact should be low as this change mostly
affects top-level vernaculars.
With this change, we are even closer to automatically map a text
document to its AST in a programmatic way.
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the concl
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In particular, add a mention of SSReflect.
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Remove the mention of specific labs (irrelevant for a copyright notice).
Add a mention to represent other contributors and a pointer to CREDITS.
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This information is already present in CREDITS.
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That way you can just type [-j] instead of having to remember to add a
space yourself.
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There is more churn than there should be because SearchPattern uses a
non-local sorting algorithm; the comparison function considers many
constants equal in priority and leaves it up to the heap structure to
break ties, which seems wrong. This has been reported as
[bug #5573](https://coq.inria.fr/bugs/show_bug.cgi?id=5573).
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Just because it's fun and easy. Not used by the Numeral Notation command.
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Computation of the sort of the inductive type was done before ensuring
that the arguments of the inductive type had the correct types,
possibly brutally failing with `NotArity` in case one of the types
expected to be typed with an arity was not so.
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Talking about the difference between ident and pattern. Giving
examples.
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Concretely, we bypass the following limitation: The notation
"{ ' pat | P }" broke the parsing of expressions of the form
"{ forall x, P } + { Q }". Indeed the latter works thanks to a
tolerance of Camlp5 in parsing "forall x, P" at level 200 while the
rule asks to actually parse the interior of "{ ... }" at level 99 (the
reason for 99 is to be below the rule for "M : T" which is at level
100, so that "{ x : A | P }" does not see "x : A" as a cast). Adding
an extra "'"; pat = pattern in parallel to c = constr LEVEL "99" broke
the tolerance for constr at level 200.
We fix this by adding an ad hoc rule for "{ binder_constr }" in the
native grammar (g_constr.ml4).
Actually, this is inconsistent with having a rule for "{ constr at level 99 }"
in Notations.v. We should have both rules in Notations.v or both rules
hard-wired in the native grammar. But I still don't know what is the best
decision to take, so leaving as it at the current time.
Advantages of hard-wiring both rules in g_constr.ml4: a bit simpler in
metasyntax.ml (no need to ensure that the rule exist). Disadvantages:
if one wants a different initial state without the business needing
the "{ }" for sumbool, sumor, sig, sigT, one still have the rules
there.
Advantages of having them in Notations.v: more modular, we can change
the initial state. Disadvantages: one would need a new kind of
modifier, something like "x at level 99 || binder_constr", with all
the difficulty to find a nice, intuitive, name for "binder_constr",
and the difficulty of understanding if there is a generality to this
"||" disjunction operator, and whether it should be documented or not.
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For compatibility, the default is to parse as ident and not as pattern.
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Concretely, we provide "constr as ident", "constr as strict pattern"
and "constr as pattern".
This tells to parse a binder as a constr, restricting to only ident or
to only a strict pattern, or to a pattern which can also be an ident.
The "strict pattern" modifier allows to restrict the use of patterns
in printing rules. This allows e.g. to select the appropriate rule for
printing between {x|P} and {'pat|P}.
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- Avoid dummy use of unit
- Do not decide as early as parsing the default level for pattern
- Prepare to further extensions
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Renaming it register_grammars_by_name.
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We generalize the possibility to refer to a notation not only by its
"_ U _" form but also using its "a 'U' b".
(Wish from EJGA)
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