| Commit message (Collapse) | Author | Age |
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Some dubious evarmap manipulation is going on in destruct because of the
use of clenv primitives. Here, building a clenv was introducing new evars
that were not taken into account in the remainder of the tactic. We plug
them back using a local workaround.
Eventually, this code should be replaced by an evar-based one, but meanwhile,
we rely on what is probably a hack.
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Use the compatibility match construction to extract the compatibility
constant associated to a primitive projection.
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Fix handling of non-polymorphic hints built from polymorphic values, or
simply producing new universes. We have to record the side effects of
global hints built from constrs which are not polymorphic when they
declare global universes, which might need to be discharged at the end
of sections too. Also issue a warning when a Hint is declared for a
polymorphic reference but the Hint isn't polymorphic itself (this used
to produce an anomaly). For [using] hints, treat all lemmas as
polymorphic, refreshing their universes at each use, as is done for
their existentials (also used to produce an anomaly).
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Note that extracting terms containing primitive projections is still
utterly broken, so don't use them.
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preserved, which is a source of incompatibilities w.r.t. released 8.5
but which looks to me to be the only possible canonical behavior.
This is I believe a better behavior than the Regular Subst Tactic
behavior in the released 8.5 and 8.5pl1. There, the order of
hypotheses in which substitutions happened was respected, but their
interleaving with other hypotheses was not respected.
So, I consider this to be a fix to the "Regular Subst Tactic" mode.
Also added a more detailed "specification" of the "Regular" behavior
of "subst" in the reference manual.
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rejected.
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Disclaimer: I have no idea what I am doing.
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Also register properly the kind of definition.
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When a notation was starting or ending a space, Coq assumed the notation
had no terminal symbol in either places. Coq also considered a notation
containing only spaces to be productive. As stated in the documentation,
extraneous spaces are only meant as printing hints, they are not meant to
have any influence on parsing.
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When encountering a "simpl nomatch" constant, the reduction machinery tries
to unfold it. If the subsequent partial reduction does not produce any
match construct, it keeps going from the reduced term. Unfortunately, the
reduced term has been refolded in the meantime, which means that some of
the previous reduction steps have been canceled, thus causing an infinite
loop. This patch delays the refolding till the very end, so that reduction
always progresses.
Disclaimer: I have no idea what I am doing here. The patch compiles the
standard library and the test suite properly, so hopefully they contain
enough tests to exercise the reduction machinery.
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As noticed by Cyprien Mangin, projected terms cannot directly be used as
head values. Indeed, they might be applications (e.g. constructors as in
the bug report) whose arguments would thus be missing from the evaluation
stack when doing any iota-reduction step.
The only case where it would make sense is when the evaluation stack is
empty, as an optimization. Indeed, in that case, the arguments are put on
the stack, and then immediately put back inside the term.
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constants up to their canonical name (taken from Daniel's
formalization of Puiseux theorem).
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This reverts commit dbe29599c2e9bf49368c7a92fe00259aa9cbbe15.
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Notation "## c" := (S c) (at level 0, c at level 100).
which break the stratification of precedences. This works for the case
of infix or suffix operators which occur in only one grammar rule,
such as +, *, etc. This solves the "constr" part of #3709, even though
this example is artificial.
The fix is not complete. It puts extra parenthesese even when it is
end of sentence, as in
Notation "# c % d" := (c+d) (at level 3).
Check fun x => # ## x % ## (x * 2).
(* fun x : nat => # ## x % (## x * 2) *)
The fix could be improved by not always using 100 for the printing
level of "## c", but 100 only when not the end of the sentence.
The fix does not solve the general problem with symbols occurring in
more than one rule, as e.g. in:
Notation "# c % d" := (c+d) (at level 1).
Notation "## c" := (S c) (at level 0, c at level 5).
Check fun x => # ## x % 0.
(* Parentheses are necessary only if "0 % 0" is also parsable *)
I don't see in this case what better approach to follow than
restarting the parser to check reversibility of the printing.
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clause of a "match" over an irrefutable pattern.
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with a more explicit message.
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while eta-expanding a notation) + a more serious variant of it
(alpha-conversion incorrect wrt eta-expansion).
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This is a follow-up on Matthieu's 7e7b5684
The Definition command was classified incorrectly when a body was provided.
This fix is a bit ad-hoc. A better one would require more expressiveness in
side effect classification, but I'll do it in trunk only since it could impact
plugins.
Thanks a lot to Enrico for his help!
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Falling back to the global setting if not given.
Useful to make Add Morphism fail correctly when the given proof terms
are incomplete. Adapt test-suite file #2848 accordingly.
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Thanks to Matthieu for the example.
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Passing `-compat 8.4` now allows the use of `econstructor (tac)`, as in
8.4.
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I introduced this bug in 4c078b0362542908eb2fe1d63f0d867b339953fd;
Coq.Init.Notations.constructor does not take any arguments.
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into JasonGross-trunk-function_scope
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product in setoid_rewrite.
Before commit e8c47b652, it was raising an error which has been turned
to an anomaly.
This impacted Compcert where the former error was (apparently) caught
so that setoid_rewrite was returning back to ordinary rewrite.
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Pierre-Marie Pédrot
Matthieu Sozeau
Matthieu Sozeau
Enrico Tassi
Hugo Herbelin
Guillaume Melquiond
Maxime Dénès
Jason Gross