maximedenes / native-coq Goto Github PK

Coq with native compilation, as well as machine integers and arrays !

License: GNU Lesser General Public License v2.1

Emacs Lisp 0.03% Makefile 0.19% Shell 0.04% OCaml 51.83% TeX 0.88% CSS 0.02% Coq 46.19% C 0.58% C++ 0.02% Verilog 0.02% Standard ML 0.05% Scheme 0.15%

native-coq's Introduction

               	         THE COQ V8 SYSTEM
            	         =================

INSTALLATION.
=============

   See the file INSTALL for installation procedure.


DOCUMENTATION.
==============

   The documentation is part of the archive in directory doc. The
   documentation of the last released version is available on the Coq
   web site at http://coq.inria.fr/doc.


CHANGES.
========

   There is a file named CHANGES that explains the differences and the
   incompatibilities since last versions. If you upgrade Coq, please read
   it carefully.


AVAILABILITY.
=============

   Coq is available at http://coq.inria.fr, or, for older versions at
   ftp://ftp.inria.fr/INRIA/LogiCal/coq.


THE COQ CLUB.
=============

   The Coq Club moderated mailing list is meant to be a standard way to
   discuss questions about the Coq system and related topics. The submission
   address is:

	[email protected]

   The topics to be discussed in the club should include:

     * technical problems;

     * questions about proof developments;

     * suggestions and questions about the implementation;

     * announcements of proofs;

     * theoretical questions about typed lambda-calculi which are
       closely related to Coq.

   To be added to, or removed from, the mailing list, please write to:

	[email protected]

   Please use also this address for any questions/suggestions about the
   Coq Club. It might sometimes take a few days before your messages get
   forwarded.


BUGS REPORT.
============

   Send your bug reports by filling a form at

        http://coq.inria.fr/bugs

   To be effective, bug reports should mention the Caml version used
   to compile and run Coq, the Coq version (coqtop -v), the configuration
   used, and include a complete source example leading to the bug.

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native-coq's Issues

Unicode identifiers

Coq supports a larger subset of Unicode inidentifiers than OCaml, so we're sometimes producing incorrect OCaml code. Extraction would probably provide us the appropriate machinery.

@ # #was

Lazy evaluation of values

Values defined at toplevel should be evaluated in a lazy fashion:

Definition n := fact 100.
Eval native_compute in true.

Should answer instantly "true".

Useless module imports in generated code

For now each call to native_compute adds a module import in subsequent calls.

An import is actually needed only if part of the environment was on the compilation stack before the call.

Write / Restore State incompatible with native compilation

Definition b := true.
Write State "foo_state".
Restore State "foo_state".
cannot find file /home/mdenes/native-coq/kernel/foo_state.coq.cmxs in search path

Eval native_compute in b.
Compilation...
File "/tmp/Coq_native6784ac.ml", line 6, characters 2-14:
Error: Unbound value const_NTop_b
Anomaly: Compilation failure. Please report.

Incorrect code generated for files with interactive tests

Definition foo := true.
Definition bar := foo.

Eval native_compute in bar.

is compiled to:

let const_Ntest_interactive_foo =
(Obj.magic (NCoq_Init_Datatypes.Construct_NCoq_Init_Datatypes_bool_0_0) : Nativevalues.t)

let const_Ntest_interactive_bar =
Coq_native1cf0e1.const_Ntest_interactive_foo

premisses is a misspelling of premises

native-coq/tactics/tactics.ml

Line 952 in cb563dd

if n<0 then error "Applied theorem has not enough premisses.";

When extracting to ocaml, native ints are extracted to Uint63.t.
However, file native-coq/theories/Array/ExtractNative.v still extracts constants using implementation native-coq/theories/Array/extrNative.ml instead of native-coq/kernel/uint63.ml.
In order to update ExtractNative.v, we need to implement a few missing bits in uint63.ml, like foldi_cont, foldi_down_cont, print_uint and probably a few others.

Separate cmxs incompatible with makefiles

If we want developments using native compilation to be compatible with regular makefiles, we should store the compiled code in vo files.