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This reverts commit 6d2802075606dcddb02dd13cbaf38ff76f8bf242, which is
an 8.6 only commit.
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This way, after we merge PR#220, scripts can be fixed in a way that is
compatible with the 8.6 and trunk branches.
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This prevents Coq from unfolding IZR in ring_simplify and field_simplify.
This is a change of behavior for users of morphism rings, so they might have
to pass the postprocess option to Add Ring/Field if they want morphisms to be
automatically expanded.
There are two predefined morphisms in the standard library: IDphi (when
polynomial coefficients have the same type as constants) and gen_phiZ (when
the only available constants are 0 and 1). They are hardcoded as transparent.
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There are two main issues. First, (-cst)%R is no longer syntactically
equal to (-(cst))%R (though they are still convertible). This breaks some
rewriting rules.
Second, the ring/field_simplify tactics did not know how to refold
real constants. This defect is no longer hidden by the pretty-printer,
which makes these tactics almost unusable on goals containing large
constants.
This commit also modifies the ring/field tactics so that real constant
reification is now constant time rather than linear.
Note that there is now a bit of code duplication between z_syntax and
r_syntax. This should be fixed once plugin interdependencies are supported.
Ideally the r_syntax plugin should just disappear by declaring IZR as a
coercion. Unfortunately the coercion mechanism is not powerful enough yet,
be it for parsing (need the ability for a scope to delegate constant
parsing to another scope) or printing (too many visible coercions left).
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A bang indicates an argument that must be reduced, a star indicates an
argument that must be handled recursively.
PEeval: R r0 r1 add mul sub opp C phi Cpow powphi pow varmap pol
0 1 2 3 4 5 6 7 8! 9 10! 11 12* 13!
FEeval: R r0 r1 add mul sub opp div inv C phi Cpow powphi pow varmap pol
0 1 2 3 4 5 6 7 8 9 10! 11 12! 13 14* 15!
Pphi_dev: R r0 r1 add mul sub opp C c0 c1 ceq phi sign varmap pol
0 1 2 3 4 5 6 7 8! 9! 10! 11! 12! 13* 14!
Pphi_pow: R r0 r1 add mul sub opp C c0 c1 ceq phi Cpow powphi pow sign varmap pol
0 1 2 3 4 5 6 7 8! 9! 10! 11! 12 13! 14 15! 16* 17!
display_linear: R r0 r1 add mul sub opp div C c0 c1 ceq phi sign varmap num den
0 1 2 3 4 5 6 7 8 9! 10!11! 12! 13! 14* 15! 16!
display_pow_linear: R r0 r1 add mul sub opp div C c0 c1 ceq phi Cpow powphi pow sign varmap num den
0 1 2 3 4 5 6 7 8 9! 10!11! 12! 13 14! 15 16! 17* 18! 19!
PCond: R r0 r1 add mul sub opp eq C phi Cpow powphi pow varmap pol
0 1 2 3 4 5 6 7 8 9! 10 11! 12 13* 14!
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Fixes [Coq bug #5372](https://coq.inria.fr/bugs/show_bug.cgi?id=5372)
"Anomaly: Not a valid information when defining mutual fixpoints that
are not mutual with Function".
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Previous implementations of `Pp` flushed on newline, however,
depending on the formatter this may not be always the case.
We now alwayas flush the formatters before closing the file as this is
the intended behavior.
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Previously, tags were associated to terminal styles, which doesn't make
sense on terminal-free pretty printing scenarios.
This commit moves tag interpretation to the toplevel terminal handling
module `Topfmt`.
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Previously to this patch, Coq featured to distinct logging paths: the
console legacy one, based on `Pp.std_ppcmds` and Ocaml's `Format`
module, and the `Feedback` one, intended to encapsulate message inside a
more general, GUI-based feedback protocol.
This patch removes the legacy logging path and makes feedback
canonical. Thus, the core of Coq has no dependency on console code
anymore.
Additionally, this patch resolves the duplication of "document" formats
present in the same situation. The original console-based printing code
relied on an opaque datatype `std_ppcmds`, (mostly a reification of
`Format`'s format strings) that could be then rendered to the console.
However, the feedback path couldn't reuse this type due to its opaque
nature. The first versions just embedded rending of `std_ppcmds` to a
string, however in 8.5 a new "rich printing" type, `Richpp.richpp` was
introduced.
The idea for this type was to be serializable, however it brought
several problems: it didn't have proper document manipulation
operations, its format was overly verbose and didn't preserve the full
layout, and it still relied on `Format` for generation, making
client-side rendering difficult.
We thus follow the plan outlined in CEP#9, that is to say, we take a
public and refactored version of `std_ppcmds` as the canonical "document
type", and move feedback to be over there. The toplevel now is
implemented as a feedback listener and has ownership of the console.
`richpp` is now IDE-specific, and only used for legacy rendering. It
could go away in future versions. `std_ppcmds` carries strictly more
information and is friendlier to client-side rendering and display
control.
Thus, the new panorama is:
- `Feedback` has become a very module for event dispatching.
- `Pp` contains a target-independent box-based document format.
It also contains the `Format`-based renderer.
- All console access lives in `toplevel`, with console handlers private
to coqtop.
_NOTE_: After this patch, many printing parameters such as printing
width or depth should be set client-side. This works better IMO,
clients don't need to notify Coq about resizing anywmore. Indeed, for
box-based capable backends such as HTML or LaTeX, the UI can directly
render and let the engine perform the word breaking work.
_NOTE_: Many messages could benefit from new features of the output
format, however we have chosen not to alter them to preserve output.
A Future commits will move console tag handling in `Pp_style` to
`toplevel/`, where it logically belongs.
The only change with regards to printing is that the "Error:" header was
added to console output in several different positions, we have removed
some of this duplication, now error messages should be a bit more
consistent.
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We replace open/close box commands in favor of the create box ones.
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We also remove flushing operations `msg_with`, now the flushing
responsibility belong to the owner of the formatter.
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Mostly unused, we ought to limit spacing in the boxes themselves.
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This is what has always been used, so it doesn't represent a functional
change.
This is just a preliminary patch, but many more possibilities could be
done wrt tags.
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Applications of it were not clear/unproven, it made printers more
complex (as they needed to be functors) and as it lacked examples it
confused some people.
The printers now tag unconditionally, it is up to the backends to
interpreted the tags.
Tagging (and indeed the notion of rich document) should be reworked in
a follow-up patch, so they are in sync, but this is a first step.
Tested, test-suite passes.
Notes:
- We remove the `Richprinter` module. It was only used in the
`annotate` IDE protocol call, its output was identical to the normal
printer (or even inconsistent if taggers were not kept manually in
sync).
- Note that Richpp didn't need a single change. In particular, its
main API entry point `Richpp.rich_pp` is not used by anyone.
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- Adding a better location in the "apply" on the fly pattern.
- Printing statement of lemma and of hypothesis.
Was suggested by discussion at wish report #5390.
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No functional change.
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No functional change, one extra copy introduced but it seems hard to
avoid.
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Augments "A fully applied tactic is expected" with the list of missing
arguments to the tactic. Addresses [bug
5344](https://coq.inria.fr/bugs/show_bug.cgi?id=5344).
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The constant was useless after 9f56baf which fixed #5073.
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This is needed to fix `Declare ML Module "ltac_plugin".
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Tactic Notation
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The syntax is: TACTIC EXTEND foo AT LEVEL i
This commit makes it possible to define tacticals like the ssreflect
arrow without having to resort to GEXTEND statements and intepretation
hacks.
Note that it simply makes accessible through the ML interface what Tactic
Notation already supports:
Tactic Notation (at level 1) tactic1(t) "=>" ipats(l) := ...
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This reverts commit e8137ae63b3b19436755f372b595e7343e942894,
was meant for 8.6 branch only.
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This is cumbersome, because now code may fail at link time if it's not
referring to the correct module name. Therefore, one has to add corresponding
open statements a the top of every file depending on a Ltac module. This
includes seemingly unrelated files that use EXTEND statements.
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This commit is essentially moving files around. In particular, the corresponding
plugin still relies on a mllib file rather than a mlpack one. Otherwise, this
causes link-time issues for third-party plugins depending on modules defined
in the Ltac plugin.
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Interpretation of patterns in Ltac is essentially flawed. It does a roundtrip
through the pretyper, and relies on suspicious flagging of evars in the evar source
field to recognize original pattern holes. After the pattern_of_constr function
was made evar-insensitive, it expanded evars that were solved by magical side-effects
of the pretyper, even if it hadn't been asked to perform any heuristics.
We backtrack on the insensitivity of the pattern_of_constr function. This may have
a performance penalty in other dubious code, e.g. hints. In the long run we should
get rid of the pattern_of_constr function.
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Now they are useless because all of the primitives are (should?) be
evar-insensitive.
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Due to the introduction of the monadic layer, an exception was raised at
a later time and not caught properly.
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Incidentally, this fixes a printing bug in output/inference.v where the
displayed name of an evar was the wrong one because its type was not
evar-expanded enough.
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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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Maxime Dénès
Guillaume Melquiond
Tej Chajed
Emilio Jesus Gallego Arias
Hugo Herbelin
Pierre-Marie Pédrot
Enrico Tassi