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Was PR#226: CErrors & CClosure
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lib/cErrors.ml)
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For the moment, there is a Closure module in compiler-libs/ocamloptcomp.cm(x)a
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module)
For the moment, there is an Error module in compilers-lib/ocamlbytecomp.cm(x)a
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Was PR#231: Separate flags for fix/cofix/match reduction and clean reduction
function names, itself a revision of PR#117: Isolating flags for cofix/fix
reduction + adjusting names of reduction functions to what they do
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whd_zeta now takes an evar_map and looks in evar instances. This changes
the behavior of whd_zeta e.g. on let x := ?t in x
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This is a reimplementation of Hugo's PR#117.
We are trying to address the problem that the name of some reduction functions
was not saying what they were doing (e.g. whd_betadeltaiota was doing let-in
reduction). Like PR#117, we are careful that no function changed semantics
without changing the names. Porting existing ML code should be a matter of
renamings a few function calls.
Also, we introduce more precise reduction flags fMATCH, fFIX, fCOFIX
collectively denominated iota.
We renamed the following functions:
Closure.betadeltaiota -> Closure.all
Closure.betadeltaiotanolet -> Closure.allnolet
Reductionops.beta -> Closure.beta
Reductionops.zeta -> Closure.zeta
Reductionops.betaiota -> Closure.betaiota
Reductionops.betaiotazeta -> Closure.betaiotazeta
Reductionops.delta -> Closure.delta
Reductionops.betalet -> Closure.betazeta
Reductionops.betadelta -> Closure.betadeltazeta
Reductionops.betadeltaiota -> Closure.all
Reductionops.betadeltaiotanolet -> Closure.allnolet
Closure.no_red -> Closure.nored
Reductionops.nored -> Closure.nored
Reductionops.nf_betadeltaiota -> Reductionops.nf_all
Reductionops.whd_betadelta -> Reductionops.whd_betadeltazeta
Reductionops.whd_betadeltaiota -> Reductionops.whd_all
Reductionops.whd_betadeltaiota_nolet -> Reductionops.whd_allnolet
Reductionops.whd_betadelta_stack -> Reductionops.whd_betadeltazeta_stack
Reductionops.whd_betadeltaiota_stack -> Reductionops.whd_all_stack
Reductionops.whd_betadeltaiota_nolet_stack -> Reductionops.whd_allnolet_stack
Reductionops.whd_betadelta_state -> Reductionops.whd_betadeltazeta_state
Reductionops.whd_betadeltaiota_state -> Reductionops.whd_all_state
Reductionops.whd_betadeltaiota_nolet_state -> Reductionops.whd_allnolet_state
Reductionops.whd_eta -> Reductionops.shrink_eta
Tacmach.pf_whd_betadeltaiota -> Tacmach.pf_whd_all
Tacmach.New.pf_whd_betadeltaiota -> Tacmach.New.pf_whd_all
And removed the following ones:
Reductionops.whd_betaetalet
Reductionops.whd_betaetalet_stack
Reductionops.whd_betaetalet_state
Reductionops.whd_betadeltaeta_stack
Reductionops.whd_betadeltaeta_state
Reductionops.whd_betadeltaeta
Reductionops.whd_betadeltaiotaeta_stack
Reductionops.whd_betadeltaiotaeta_state
Reductionops.whd_betadeltaiotaeta
They were unused and having some reduction functions perform eta is confusing
as whd_all and nf_all don't do it.
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See 4865.v for details.
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Unset Program Generalized Coercion to avoid coercion of general
applications.
Unset Program Cases to deactivate generation equalities and
disequalities of cases.
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When using Record and an explicit sort constraint, the
universe was wrongly made flexible and minimized.
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For better error messages. The API change is
backwards compatible, using a new optional argument.
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When declaring the universes of a lemma explicitely, throw an error if
after minimization the type of a lemma still refers to unbound
universes. This is a fix and an incompatibility, but scripts
will be backwards compatible themselves.
Fix another minor bug in treating universe binders for (Co)Fixpoint.
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Was PR#213: New warnings machinery
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On the user side, coqtop and coqc take a list of warning names or categories
after -w. No prefix means activate the warning, a "-" prefix means deactivate
it, and "+" means turn the warning into an error. Special categories include
"all", and "default" which contains the warnings enabled by default.
We also provide a vernacular Set Warnings which takes the same flags as argument.
Note that coqc now prints warnings.
The name and category of a warning are printed with the warning itself.
On the developer side, Feedback.msg_warning is still accessible, but the
recommended way to print a warning is in two steps:
1) create it by:
let warn_my_warning =
CWarnings.create ~name:"my-warning" ~category:"my-category"
(fun args -> Pp.strbrk ...)
2) print it by:
warn_my_warning args
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This allows a work-around for bug #4819,
https://coq.inria.fr/bugs/show_bug.cgi?id=4819.
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This reverts commit 925d258d7d03674c601a1f3832122b3b4b1bc9b0.
I forgot that Jenkins gave me a spurious success when trying to build this PR.
There are a few rough edges to fix, so reverting meanwhile. The Jenkins issue
has been fixed by Matej. Sorry for the noise.
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Otherwise we may backtrack on the resolution in a
by which seems strange.
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Was PR#213: New warnings machinery
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On the user side, coqtop and coqc take a list of warning names or categories
after -w. No prefix means activate the warning, a "-" prefix means deactivate
it, and "+" means turn the warning into an error. Special categories include
"all", and "default" which contains the warnings enabled by default.
We also provide a vernacular Set Warnings which takes the same flags as argument.
Note that coqc now prints warnings.
The name and category of a warning are printed with the warning itself.
On the developer side, Feedback.msg_warning is still accessible, but the
recommended way to print a warning is in two steps:
1) create it by:
let warn_my_warning =
CWarnings.create ~name:"my-warning" ~category:"my-category"
(fun args -> Pp.strbrk ...)
2) print it by:
warn_my_warning args
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Was PR#207: Add -no-print-dependent-evars
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Ensure correspondence between the term and type to shrink, so that Lets
are preserved when they are used relevantly in either of them. This
avoids e.g. "simpl" in the shrinked hypotheses to reduce shrinking,
while maintaining unsimplified types in the type of the shrinked
obligations (for compatibility).
Simplify Lambda, Prod case of shrinking,
By invariant (we start with a term and its type), the abstraction's
types correspond.
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By default obligations defined by tactics are defined
transparently or opaque according to the Obligations Transparent flag,
except proofs of subset obligations which are treated
as opaque by default. When the user proves the obligation using
Qed or Defined, this information takes precedence, and only
when the obligation cannot be Qed'ed because it contains
references to a recursive function an error is raised
(this prevents the guardness checker error).
Shrinked obligations were not doings this correctly.
Forcing transparency due to fixpoint prototypes
takes precedence over the user preference.
Program: do not force opacity of subset proofs,
maintaining compatibility.
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For compatibility with 8.5.
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Fix bug in Shrink obligations with Program in the process.
Fix implementation of shrink for abstract proofs
- Update doc in term.mli to reflect the fact that let-in's
are part of what is returned by [decompose_lam_assum].
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Was PR#223: Allow feedback messages to carry a location.
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