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This was mostly a matter of adding backquotes and indentation where
needed. There were also some "combining grave accent" used in place of
proper backquotes.
I cleaned only the changes of the most recent releases.
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Closes #7380. Ubuntu 18.04 and Debian Buster will ship this OCaml
version so it makes sense we bump our dependency to 4.05.0 as we can
use some newer compiler features.
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variables.
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And update documentation.
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evars by name
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When interpreting an existential variable "?n@{inst}" in the current
context, check that variables bound to local definitions are replaced
by variables with convertible body.
Also give a message explaining the type error or non-convertibility
error rather than wrongly saying that there is no binding for the
variable.
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This refines even further c24bcae8 (PR #924) and 6304c843:
- c24bcae8 fixed the order in the heuristic
- 6304c843 improved the order by preferring projections
There remained a dependency in the alphabetic order in selecting
unification candidates. The current commit fixes it.
We radically change the representation of the substitution to invert
by using a map indexed on the rank in the signature rather than on the
name of the variable.
More could be done to use numbers further, e.g. for representing
aliases.
Note that this has consequences on the test-suite (in
output/Notations.v) as some problems now infer a dependent return
clause.
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As far as I know, this plugin is untested and barely maintained. I don't
think it has real use cases any more, so let's move it out from the repo
and see if somebody wants to take over and maintain it.
We also remove the documentation, which was telling our users to look at
ring to see an example of reification done using quote, when in fact it
wasn't using it anymore.
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This concerns e.g. "?[id]", "?[?id]" or "?id" (in terms, not in
patterns), so that all names occurring in terms are consistently
interpreted as ltac names.
Moreover, with that, we can for instance do:
Ltac pick x := eexists ?[x].
Goal exists x, x = 0.
pick foo.
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Use N2Bv_sized instead.
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This issue was first reported on equations where a definition seemingly
took all memory until Coq crashed.
https://github.com/mattam82/Coq-Equations/issues/69
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Because that's the sane thing to do.
This will inevitably cause issues for projects which do not `Import
Coq.Strings.Ascii` before trying to use ascii notations.
We also move the syntax plugin for `int31` notations from `Cyclic31` to
`Int31`, so that users (like CompCert) who merely `Require Import
Coq.Numbers.Cyclic.Int31.Int31` get the `int31` numeral syntax. Since
`Cyclic31` `Export`s `Int31`, this should not cause any additional
incompatibilities.
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As per https://github.com/coq/coq/pull/8167#issuecomment-416929865
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Fixes #8158
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not the type of body. Also update CHANGES to reflect that the argument for Set Diffs
is a string.
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underline, etc.)
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[N], [nat] and [string]
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Proof General requires minor changes to make the diffs visible, but this code
shouldn't break the existing version of PG.
Diffs are computed for the hypotheses and conclusion of the first goal between
the old and new proofs. Strings are split into tokens using the Coq lexer,
then the list of tokens are diffed using the Myers algorithm. A fixup routine
(Pp_diff.shorten_diff_span) shortens the span of the diff result in some cases.
Diffs can be enabled with the Coq commmand "Set Diffs on|off|removed." or
"-diffs on|off|removed" on the OS command line. The "on" option shows only the
new item with added text, while "removed" shows each modified item twice--once
with the old value showing removed text and once with the new value showing
added text.
The highlights use 4 tags to specify the color and underline/strikeout.
These are "diffs.added", "diffs.removed", "diffs.added.bg" and "diffs.removed.bg".
The first two are for added or removed text; the last two are for
unmodified parts of a modified item.
Diffs that span multiple strings in the Pp are tagged with "start.diff.*" and
"end.diff.*", but only on the first and last strings of the span.
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IIUC, this was a hack to make `Set SsrHave NoTCResolution` behave like
`Global Set SsrHave NoTCResolution`. I don't think it is needed (just
let the user write the desired locality), but if it is, the right way of
doing it is to let clients of Goptions specify a default locality.
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As stated in the manual, the fourier tactic is subsumed by lra.
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