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core: Add module-define! 

* src/module.c (module_define_x, module_printer): New function.
(make_initial_module): Use them.
* tests/srfi-0.test: Test it.
* src/mes.c (display_m0): Remove.  Update callers.
* mes/module/mes/fluids.mes (make-fluid): Rewrite.
* tests/macro.test: Test it.
* mes/module/mes/boot-0.scm.in (module-define!): Remove.
* mes/module/mes/boot-02.scm: Likewise.
* module/mes/misc.scm (pk, warn): New function.
* build-aux/check-mes.sh (tests): Run tests.
This commit is contained in:
Jan Nieuwenhuizen 2018-10-14 09:10:30 +02:00
parent 16934697f7
commit 7da67941e2
No known key found for this signature in database
GPG Key ID: F3C1A0D9C1D65273
13 changed files with 398 additions and 126 deletions
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2
build-aux/check-mes.sh
View File

@ -34,6 +34,8 @@ MES_ARENA=${MES_ARENA-100000000}
tests="
tests/boot.test
tests/read.test
tests/srfi-0.test
tests/macro.test
tests/base.test
tests/quasiquote.test
tests/let.test

4
mes/module/mes/boot-0.scm.in
View File

@ -104,10 +104,6 @@
(cons (quote or) (cdr x))))
(car x)))))
(define-macro (module-define! module name value)
;;(list 'define name value)
#t)
(define-macro (mes-use-module module)
#t)
;; end boot-02.scm

4
mes/module/mes/boot-02.scm
View File

@ -104,10 +104,6 @@
(cons (quote or) (cdr x))))
(car x)))))
(define-macro (module-define! module name value)
;;(list 'define name value)
#t)
(define-macro (mes-use-module module)
#t)

46
mes/module/mes/fluids.mes
View File

@ -1,7 +1,7 @@
;;; -*-scheme-*-
;;; GNU Mes --- Maxwell Equations of Software
;;; Copyright © 2016 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
;;; Copyright © 2016,2018 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
;;;
;;; This file is part of GNU Mes.
;;;
@ -24,39 +24,19 @@
(mes-use-module (mes scm))
(define (sexp:define e a)
(if (atom? (car (cdr e))) (cons (car (cdr e))
(core:eval (car (cdr (cdr e))) a))
(cons (car (car (cdr e)))
(core:eval (cons (quote lambda)
(cons (cdr (car (cdr e))) (cdr (cdr e)))) a))))
(define (f:env:define a+ a)
(set-cdr! a+ (cdr a))
(set-cdr! a a+)
;;(set-cdr! (assq '*closure* a) a+)
)
(define (env:escape-closure a n)
(if (eq? (caar a) '*closure*) (if (= 0 n) a
(env:escape-closure (cdr a) (- n 1)))
(env:escape-closure (cdr a) n)))
(define-macro (module-define! name value a)
`(f:env:define (cons (sexp:define (cons 'define (cons ',name (cons ,value '()))) ,a) '()) (env:escape-closure ,a 1)))
(define-macro (make-fluid . default)
`(begin
,(let ((fluid (symbol-append 'fluid: (gensym)))
(module (current-module)))
`(begin
(module-define! ,fluid
(let ((v ,(and (pair? default) (car default))))
(lambda ( . rest)
(if (null? rest) v
(set! v (car rest))))) ',module)
',fluid))))
((lambda (fluid)
`(begin
(module-define!
(boot-module)
',fluid
((lambda (v)
(lambda ( . rest)
(if (null? rest) v
(set! v (car rest)))))
,(and (pair? default) (car default))))
',fluid))
(symbol-append 'fluid: (gensym))))
(define (fluid-ref fluid)
(fluid))

11
module/mes/misc.scm
View File

@ -22,7 +22,9 @@
disjoin
guile?
mes?
pk
pke
warn
stderr
string-substitute))
@ -43,6 +45,13 @@
(define (stderr string . rest)
(apply logf (cons* (current-error-port) string rest)))
(define (pk . stuff)
(newline)
(display ";;; ")
(write stuff)
(newline)
(car (last-pair stuff)))
(define (pke . stuff)
(newline (current-error-port))
(display ";;; " (current-error-port))
@ -50,6 +59,8 @@
(newline (current-error-port))
(car (last-pair stuff)))
(define warn pke)
(define (disjoin . predicates)
(lambda (. arguments)
(any (lambda (o) (apply o arguments)) predicates)))

106
src/mes.c
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@ -52,6 +52,8 @@ SCM r1 = 0;
SCM r2 = 0;
// continuation
SCM r3 = 0;
// current-module
SCM m0 = 0;
// macro
SCM g_macros = 1;
SCM g_ports = 1;
@ -662,7 +664,7 @@ check_apply (SCM f, SCM e) ///((internal))
SCM
gc_push_frame () ///((internal))
{
SCM frame = cons (r1, cons (r2, cons (r3, cons (r0, cell_nil))));
SCM frame = cons (r1, cons (r2, cons (r3, cons (r0, cons (m0, cell_nil)))));
g_stack = cons (frame, g_stack);
return g_stack;
}
@ -897,7 +899,10 @@ push_cc (SCM p1, SCM p2, SCM a, SCM c) ///((internal))
r2 = p2;
gc_push_frame ();
r1 = p1;
r0 = a;
// if (TYPE (a) == TPAIR)
// r0 = module_clone_locals (r0, a);
// else
r0 = a;
r3 = x;
return cell_unspecified;
}
@ -910,6 +915,7 @@ gc_peek_frame () ///((internal))
r2 = CADR (frame);
r3 = CAR (CDDR (frame));
r0 = CADR (CDDR (frame));
m0 = CAR (CDDR (CDDR (frame)));
return frame;
}
@ -1017,6 +1023,9 @@ expand_variable (SCM x, SCM formals) ///((internal))
return expand_variable_ (x, formals, 1);
}
SCM struct_ref_ (SCM x, long i);
SCM vector_ref_ (SCM x, long i);
SCM
eval_apply ()
{
@ -1268,12 +1277,7 @@ eval_apply ()
{
entry = module_variable (r0, name);
if (entry == cell_f)
{
entry = cons (name, cell_f);
aa = cons (entry, cell_nil);
set_cdr_x (aa, cdr (r0));
set_cdr_x (r0, aa);
}
module_define_x (m0, name, cell_f);
}
}
r2 = r1;
@ -1507,6 +1511,8 @@ eval_apply ()
push_cc (input, r2, r0, cell_vm_return);
x = read_input_file_env (r0);
if (g_debug > 3)
module_printer (m0);
gc_pop_frame ();
input = r1;
r1 = x;
@ -1594,12 +1600,12 @@ apply (SCM f, SCM x, SCM a) ///((internal))
SCM
mes_g_stack (SCM a) ///((internal))
{
r0 = a;
//r0 = a;
r1 = MAKE_CHAR (0);
r2 = MAKE_CHAR (0);
r3 = MAKE_CHAR (0);
g_stack = cons (cell_nil, cell_nil);
return r0;
return a;
}
// Environment setup
@ -2025,20 +2031,6 @@ g_cells[cell_vm_return].car = cstring_to_list (scm_vm_return.car);
a = acons (cell_symbol_mes_version, MAKE_STRING (cstring_to_list (VERSION)), a);
a = acons (cell_symbol_mes_prefix, MAKE_STRING (cstring_to_list (PREFIX)), a);
char *compiler = "gnuc";
#if __MESC__
compiler = "mesc";
#elif __TINYC__
compiler = "tcc";
#endif
a = acons (cell_symbol_compiler, MAKE_STRING (cstring_to_list (compiler)), a);
char *arch = "x86";
#if __x86_64__
arch = "x86_64";
#endif
a = acons (cell_symbol_arch, MAKE_STRING (cstring_to_list (arch)), a);
a = acons (cell_type_char, MAKE_NUMBER (TCHAR), a);
a = acons (cell_type_closure, MAKE_NUMBER (TCLOSURE), a);
a = acons (cell_type_continuation, MAKE_NUMBER (TCONTINUATION), a);
@ -2064,9 +2056,31 @@ g_cells[cell_vm_return].car = cstring_to_list (scm_vm_return.car);
}
SCM
mes_environment () ///((internal))
mes_environment (int argc, char *argv[])
{
SCM a = mes_symbols ();
char *compiler = "gnuc";
#if __MESC__
compiler = "mesc";
#elif __TINYC__
compiler = "tcc";
#endif
a = acons (cell_symbol_compiler, MAKE_STRING (cstring_to_list (compiler)), a);
char *arch = "x86";
#if __x86_64__
arch = "x86_64";
#endif
a = acons (cell_symbol_arch, MAKE_STRING (cstring_to_list (arch)), a);
#if !MES_MINI
SCM lst = cell_nil;
for (int i=argc-1; i>=0; i--)
lst = cons (MAKE_STRING (cstring_to_list (argv[i])), lst);
a = acons (cell_symbol_argv, lst, a);
#endif
return mes_g_stack (a);
}
@ -2287,9 +2301,8 @@ load_boot (char *prefix, char const *boot, char const *location)
}
SCM
load_env (SCM a) ///((internal))
load_env () ///((internal))
{
r0 = a;
g_stdin = -1;
char prefix[1024];
char boot[1024];
@ -2328,15 +2341,13 @@ load_env (SCM a) ///((internal))
exit (1);
}
if (!g_function)
r0 = mes_builtins (r0);
r2 = read_input_file_env (r0);
g_stdin = STDIN;
return r2;
}
SCM
bload_env (SCM a) ///((internal))
bload_env () ///((internal))
{
#if !_POSIX_SOURCE
char *mo = "mes/boot-0.32-mo";
@ -2376,23 +2387,11 @@ bload_env (SCM a) ///((internal))
gc_peek_frame ();
g_symbols = r1;
g_stdin = STDIN;
// SCM a = struct_ref (r0, 3);
// a = mes_builtins (a);
// struct_set_x (r0, 3, a);
r0 = mes_builtins (r0);
char *compiler = "gnuc";
#if __MESC__
compiler = "mesc";
#elif __TINYC__
compiler = "tcc";
#endif
a = acons (cell_symbol_compiler, MAKE_STRING (cstring_to_list (compiler)), a);
char *arch = "x86";
#if __x86_64__
arch = "x86_64";
#endif
a = acons (cell_symbol_arch, MAKE_STRING (cstring_to_list (arch)), a);
if (g_debug > 3)
{
eputs ("symbols: ");
@ -2448,21 +2447,20 @@ main (int argc, char *argv[])
GC_SAFETY = atoi (p);
g_stdin = STDIN;
g_stdout = STDOUT;
r0 = mes_environment ();
SCM a = mes_environment (argc, argv);
a = mes_builtins (a);
m0 = make_initial_module (a);
if (g_debug > 3)
module_printer (m0);
SCM program = (argc > 1 && !strcmp (argv[1], "--load"))
? bload_env (r0) : load_env (r0);
? bload_env () : load_env ();
g_tiny = argc > 2 && !strcmp (argv[2], "--tiny");
if (argc > 1 && !strcmp (argv[1], "--dump"))
return dump ();
#if !MES_MINI
SCM lst = cell_nil;
for (int i=argc-1; i>=0; i--)
lst = cons (MAKE_STRING (cstring_to_list (argv[i])), lst);
r0 = acons (cell_symbol_argv, lst, r0); // FIXME
r0 = acons (cell_symbol_argv, lst, r0);
#endif
push_cc (r2, cell_unspecified, r0, cell_unspecified);
if (g_debug > 2)

120
src/module.c
View File

@ -18,8 +18,14 @@
* along with GNU Mes. If not, see <http://www.gnu.org/licenses/>.
*/
SCM make_vector__ (long k);
SCM struct_ref_ (SCM x, long i);
SCM struct_set_x_ (SCM x, long i, SCM e);
SCM vector_ref_ (SCM x, long i);
SCM vector_set_x_ (SCM x, long i, SCM e);
SCM
make_initial_module (SCM a)
make_initial_module (SCM a) ///((internal))
{
SCM fields = cell_nil;
fields = cons (cstring_to_symbol ("globals"), fields);
@ -31,17 +37,105 @@ make_initial_module (SCM a)
a = acons (module_type_name, module_type, a);
SCM values = cell_nil;
SCM name = cons (cstring_to_symbol ("boot"), cell_nil);
SCM globals = cell_nil;
values = cons (a, values);
//SCM globals = make_vector__ (28 * 27);
SCM globals = make_vector__ (30 * 27);
values = cons (globals, values);
SCM locals = cell_nil;
values = cons (locals, values);
values = cons (name, values);
SCM module = make_struct (module_type_name, values, cell_unspecified);
SCM module = make_struct (module_type_name, values, cell_module_printer);
r0 = cell_nil;
r0 = cons (CAR (a), r0);
m0 = module;
while (TYPE (a) == TPAIR)
{
if (g_debug > 3)
{
eputs ("entry="); display_error_ (CAR (a)); eputs ("\n");
}
module_define_x (module, CAAR (a), CDAR (a));
a = CDR (a);
}
return module;
}
SCM
module_printer (SCM module)
{
eputs ("#<"); display_error_ (struct_ref_ (module, 0)); eputc (' ');
//eputs ("printer: "); display_error_ (struct_ref_ (module, 1)); eputc (' ');
eputs ("name: "); display_error_ (struct_ref_ (module, 2)); eputc (' ');
eputs ("locals: "); display_error_ (struct_ref_ (module, 3)); eputc (' ');
eputs ("globals:\n ");
SCM v = struct_ref_ (m0, 4);
for (int i=0; i<LENGTH (v); i++)
{
SCM e = vector_ref_ (v, i);
if (e != cell_unspecified)
{
eputc ('[');
while (TYPE (e) == TPAIR)
{
display_error_ (CAAR (e));
e = CDR (e);
if (TYPE (e) == TPAIR)
eputc (' ');
}
eputs ("]\n ");
}
}
eputc ('>');
}
int
char_hash (int c)
{
if (c >= 'a' && c <= 'z')
return c - 'a';
return 27;
}
int
module_hash (SCM x) ///((internal))
{
int hash = char_hash (VALUE (CAR (STRING (x)))) * 27;
if (TYPE (CDR (STRING (x))) == TPAIR)
hash = hash + char_hash (VALUE (CADR (STRING (x))));
else
hash = hash + char_hash (0);
assert (hash <= 756);
return hash;
}
SCM
module_variable (SCM module, SCM name)
{
//SCM locals = struct_ref_ (module, 3);
SCM locals = module;
SCM x = assq (name, locals);
if (x == cell_f)
{
int hash = module_hash (name);
module = m0;
SCM globals = struct_ref_ (module, 4);
SCM bucket = vector_ref_ (globals, hash);
if (TYPE (bucket) == TPAIR)
x = assq (name, bucket);
}
return x;
}
SCM
module_ref (SCM module, SCM name)
{
if (g_debug > 4)
{
eputs ("module_ref: "); display_error_ (name); eputs ("\n");
}
SCM x = module_variable (module, name);
if (x == cell_f)
return cell_undefined;
@ -49,9 +143,19 @@ module_ref (SCM module, SCM name)
}
SCM
module_variable (SCM module, SCM name)
module_define_x (SCM module, SCM name, SCM value)
{
//SCM locals = struct_ref (module, 4);
SCM locals = module;
return assq (name, locals);
if (g_debug > 4)
{
eputs ("module_define_x: "); display_error_ (name); eputs ("\n");
}
int hash = module_hash (name);
module = m0;
SCM globals = struct_ref_ (module, 4);
SCM bucket = vector_ref_ (globals, hash);
if (TYPE (bucket) != TPAIR)
bucket = cell_nil;
bucket = acons (name, value, bucket);
vector_set_x_ (globals, hash, bucket);
return cell_t;
}

5
src/reader.c
View File

@ -34,8 +34,9 @@ read_input_file_env_ (SCM e, SCM a)
SCM
read_input_file_env (SCM a)
{
r0 = a;
return read_input_file_env_ (read_env (r0), r0);
//r0 = a;
//return read_input_file_env_ (read_env (r0), r0);
return read_input_file_env_ (read_env (cell_nil), cell_nil);
}
int

22
src/struct.c
View File

@ -47,11 +47,11 @@ struct_length (SCM x)
}
SCM
struct_ref (SCM x, SCM i)
struct_ref_ (SCM x, long i)
{
assert (TYPE (x) == TSTRUCT);
assert (VALUE (i) < LENGTH (x));
SCM e = STRUCT (x) + VALUE (i);
assert (i < LENGTH (x));
SCM e = STRUCT (x) + i;
if (TYPE (e) == TREF)
e = REF (e);
if (TYPE (e) == TCHAR)
@ -62,10 +62,22 @@ struct_ref (SCM x, SCM i)
}
SCM
struct_set_x (SCM x, SCM i, SCM e)
struct_set_x_ (SCM x, long i, SCM e)
{
assert (TYPE (x) == TSTRUCT);
assert (VALUE (i) < LENGTH (x));
g_cells[STRUCT (x)+VALUE (i)] = g_cells[vector_entry (e)];
g_cells[STRUCT (x)+i] = g_cells[vector_entry (e)];
return cell_unspecified;
}
SCM
struct_ref (SCM x, SCM i)
{
return struct_ref_ (x, VALUE (i));
}
SCM
struct_set_x (SCM x, SCM i, SCM e)
{
return struct_set_x_ (x, VALUE (i), e);
}

24
src/vector.c
View File

@ -42,11 +42,11 @@ vector_length (SCM x)
}
SCM
vector_ref (SCM x, SCM i)
vector_ref_ (SCM x, long i)
{
assert (TYPE (x) == TVECTOR);
assert (VALUE (i) < LENGTH (x));
SCM e = VECTOR (x) + VALUE (i);
assert (i < LENGTH (x));
SCM e = VECTOR (x) + i;
if (TYPE (e) == TREF)
e = REF (e);
if (TYPE (e) == TCHAR)
@ -56,6 +56,12 @@ vector_ref (SCM x, SCM i)
return e;
}
SCM
vector_ref (SCM x, SCM i)
{
return vector_ref_ (x, VALUE (i));
}
SCM
vector_entry (SCM x)
{
@ -65,14 +71,20 @@ vector_entry (SCM x)
}
SCM
vector_set_x (SCM x, SCM i, SCM e)
vector_set_x_ (SCM x, long i, SCM e)
{
assert (TYPE (x) == TVECTOR);
assert (VALUE (i) < LENGTH (x));
g_cells[VECTOR (x)+VALUE (i)] = g_cells[vector_entry (e)];
assert (i < LENGTH (x));
g_cells[VECTOR (x)+i] = g_cells[vector_entry (e)];
return cell_unspecified;
}
SCM
vector_set_x (SCM x, SCM i, SCM e)
{
return vector_set_x_ (x, VALUE (i), e);
}
SCM
list_to_vector (SCM x)
{

13
tests/guile.test
View File

@ -26,11 +26,13 @@ exec ${MES-src/mes} --no-auto-compile -L ${0%/*} -L module -C module -e '(tests
(define-module (tests guile)
#:use-module (ice-9 rdelim)
#:use-module (mes mes-0)
#:use-module (mes misc)
#:use-module (mes test))
(cond-expand
(mes
(mes-use-module (mes test))
(mes-use-module (mes misc))
(mes-use-module (mes guile)))
(else))
@ -71,14 +73,6 @@ exec ${MES-src/mes} --no-auto-compile -L ${0%/*} -L module -C module -e '(tests
(set-current-input-port (car ipstk))
(fluid-set! *input-stack* (cdr ipstk))))))
;; Return #f if empty
(define (pop-input)
(let ((ipstk (fluid-ref *input-stack*)))
(if (null? ipstk) #f
(begin
(set-current-input-port (car ipstk))
(fluid-set! *input-stack* (cdr ipstk))))))
(pass-if-equal "push-input"
"bla"
(let ()
@ -102,8 +96,7 @@ exec ${MES-src/mes} --no-auto-compile -L ${0%/*} -L module -C module -e '(tests
(unless (eof-object? ch) (write-char ch) (iter (read-char))))
(pop-input)
(let iter ((ch (read-char)))
(unless (eof-object? ch) (write-char ch) (iter (read-char))))
)))))
(unless (eof-object? ch) (write-char ch) (iter (read-char)))))))))
(pass-if "input-stack/2"
(let ((sp (open-input-string "abc")))

119
tests/macro.test Executable file
View File

@ -0,0 +1,119 @@
#! /bin/sh
# -*-scheme-*-
if [ "$MES" != guile ]; then
export MES_BOOT=boot-02.scm
MES=${MES-$(dirname $0)/../src/mes}
$MES < $0
exit $?
else
exit 0
fi
exec ${MES-mes} --no-auto-compile -L ${0%/*} -L module -C module -e '(tests macro)' -s "$0" "$@"
!#
;;; -*-scheme-*-
;;; GNU Mes --- Maxwell Equations of Software
;;; Copyright © 2018 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
;;;
;;; This file is part of GNU Mes.
;;;
;;; GNU Mes is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Mes is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Mes. If not, see <http://www.gnu.org/licenses/>.
(define-module (tests boot)
#:use-module (mes mes-0)
#:use-module (mes test))
(cond-expand
(mes
(primitive-load "module/mes/test.scm"))
(guile-2)
(guile
(use-modules (ice-9 syncase))))
(pass-if "first dummy" #t)
(pass-if-not "second dummy" #f)
(define gensym
((lambda (symbols)
(lambda (. rest)
((lambda (head tail)
(set! symbols tail)
head)
(car symbols)
(cdr symbols))))
'(g0 g1 g2 g3 g4)))
;; type-0.mes
(define (string . lst)
(core:make-cell <cell:string> lst 0))
(define (string->symbol s)
(if (not (pair? (core:car s))) '()
(list->symbol (core:car s))))
(define (symbol->list s)
(core:car s))
;; boot-0.scm
(define (symbol->string s)
(apply string (symbol->list s)))
(define (string-append . rest)
(apply string (apply append (map1 string->list rest))))
;; scm.mes
(define (symbol-append . rest)
(string->symbol (apply string-append (map symbol->string rest))))
(define-macro (make-fluid . default)
((lambda (fluid)
(list
'begin
(list
'module-define!
(list 'boot-module)
(list 'quote fluid)
(list
(lambda (v)
(lambda ( . rest)
(if (null? rest) v
(set! v (car rest)))))
(and (pair? default) (car default))))
(list 'quote fluid)))
(symbol-append 'fluid: (gensym))))
(define fluid (make-fluid 42))
(pass-if-eq "fluid" 42 (fluid))
(fluid 0)
(pass-if-eq "fluid 0" 0 (fluid))
(fluid '())
(pass-if-eq "fluid null" '() (fluid))
(define (fluid-ref fluid)
(fluid))
(define (fluid-set! fluid value)
(fluid value))
(fluid-set! fluid 0)
(pass-if-eq "fluid 0" 0 (fluid-ref fluid))
(fluid-set! fluid '())
(pass-if-eq "fluid null" '() (fluid-ref fluid))
(result 'report)

48
tests/srfi-0.test Executable file
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@ -0,0 +1,48 @@
#! /bin/sh
# -*-scheme-*-
if [ "$MES" != guile ]; then
export MES_BOOT=boot-02.scm
MES=${MES-$(dirname $0)/../src/mes}
$MES < $0
exit $?
fi
exec ${MES-mes} --no-auto-compile -L ${0%/*} -L module -C module -e '(tests boot)' -s "$0" "$@"
!#
;;; -*-scheme-*-
;;; GNU Mes --- Maxwell Equations of Software
;;; Copyright © 2018 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
;;;
;;; This file is part of GNU Mes.
;;;
;;; GNU Mes is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Mes is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Mes. If not, see <http://www.gnu.org/licenses/>.
(define-module (tests srfi-0)
#:use-module (mes mes-0)
#:use-module (mes test))
(display "srfi-0...\n")
(cond-expand
(mes
(display "mes\n")
(exit 0))
(guile
(display "guile\n")
(exit guile?))
(else
(exit 1)))
(exit 1)