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We can now use the expressivity of GADT to work around historical kludges
of generic arguments.
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No more Obj.magic in Genarg. We leverage the expressivity of GADT
coupled with dynamic tags to get rid of unsafety. For now the API
did not change in order to port the legacy code more easily.
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This will allow an easier landing of the rewriting of Genarg.
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Conflicts:
lib/cSig.mli
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The Map interface of upcoming OCaml 4.03 includes a new union operator. In
order to make our homemade implementation of Maps compatible with OCaml
versions from 3.12 to 4.03, we define our own signatures for Maps.
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CString was linked after Serialize, although the later was using CString.equal.
This had not been noticed so far because OCaml was ignoring functions marked as
external in interfaces (which is the case of CString.equal) when considering
link dependencies. This was changed on the OCaml side as part of the fix of
PR#6956, so linking was now failing in several places.
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In the original version, ocamldoc markup wasn't used properly thus
ocamldoc output did not in all places make sense.
This commit makes sure that the documentation of the Predicate module
is as clear as the documentation of the Set module (in the standard library).
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Note: they do not even seem to have a debugging purpose, so better remove
them before they bitrot.
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This patch also causes the code to finish a bit faster in the NoGlob case
by not preparing a string for dump_string. It also optimizes
Dumpglob.is_ghost by only checking whether the end position is zero.
Note that no ghost locations were part of the glob files of the standard
library before the patch. Note also that the html documentation of the
standard library is bitwise identical before and after the patch.
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We also intepret it at toplevel as a true constr and push the resulting
evarmap in the current state.
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Now that types can share the same dynamic representation, we do not have
to transtype the topelvel values dynamically and just take advantage of
the standard interpretation function.
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- int and int_or_var
- ident and var
- constr and constr_may_eval
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When coqtop is a long-lived process (e.g. coqide), the user might be
creating files on the fly. So we have to ask the operating system whether
a file exists beforehand, so that we know whether the content of the
directory cache is outdated.
In batch mode, we can assume that the cache is always up-to-date, so we
don't need to query the operating system before trusting the content of
the cache.
On a script doing "Require Import Reals", this brings down the number of
stat syscalls from 42k to 2k. The number of syscalls could be further
halved if all_subdirs was filling the directory cache.
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In the original version, ocamldoc markup wasn't used properly thus
ocamldoc output did not in all places make sense.
This commit makes sure that the documentation of the Predicate module
is as clear as the documentation of the Set module (in the standard library).
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The interesting manifestation of the bug was Unix.select
returning no error but the empty list of descriptors, as if
a timeout did happen.
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Soon needing a more algebraic view at version numbers...
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"open Unix" from lib/system.ml.
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This makes the function sightly more portable.
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Actually, we never mix the various uses of each dynamic type created through
the Dyn module. To enforce this statically, we functorize the Dyn module so
that we recover a fresh instance at each use point.
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second chance to dynamically regenerate the file system cache when a
file is not found (suggested by Guillaume M.).
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correct case on MacOS X whose file system is case-insensitive but
case-preserving (HFS+ configured in case-insensitive mode).
Generalized it to any case-preserving case-insensitive file system,
which makes it applicable to Windows with NTFS used in
case-insensitive mode but also to Linux when mounting a
case-insensitive file system.
Removed the blow-up of the patch, improved the core of the patch by
checking whether the case is correct only for the suffix part of the
file to be found (not for the part which corresponds to the path in
which where to look), and finally used a cache so that the effect of
the patch is not observable.
Note that the cache is implemented in a way not synchronous with
backtracking what implies e.g. that a file compiled in the middle of
an interactive session would not be found until Coq is restarted, even
by backtracking before the corresponding Require.
For history see commits
b712864e9cf499f1298c1aca1ad8a8b17e145079,
4b5af0d6e9ec1343a2c3ff9f856a019fa93c3606
69941d4e195650bf59285b897c14d6287defea0f
e7043eec55085f4101bfb126d8829de6f6086c5a.
as well as
https://coq.inria.fr/bugs/show_bug.cgi?id=2554
discussion on coq-club "8.5 and MathClasses" (May 2015)
discussion on coqdev "Coq awfully slow on MacOS X" (Sep 2015)
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