/**
Génère le bytecode correspondant à la déclaration de toutes les
variables globales
*/
int Compiler::recglobals(int vlab,Prodbuffer *b)
{
if (vlab==NIL) return -1;
int n=1+recglobals(TABGET(VALTOPNT(vlab),LABELLIST_NEXT),b);
int val=TABGET(VALTOPNT(vlab),LABELLIST_REF);
// printf("%d:%s ",n,STRSTART(VALTOPNT(TABGET(VALTOPNT(vlab),LABELLIST_NAME))));
// avant de l'enregistrer, on verifie si tout est correct
int* p;
p = searchref_nosetused(PNTTOVAL(newpackage),STRSTART(VALTOPNT(TABGET(VALTOPNT(vlab),LABELLIST_NAME))));
if (NULL != p)
{
if (VALTOINT(TABGET(p,REF_USED)) == 0)
{
PRINTF(m)(LOG_WARNING,"%s is declared but never used\n",
STRSTART(VALTOPNT(TABGET(VALTOPNT(vlab),LABELLIST_NAME))));
}
else if (VALTOINT(TABGET(p,REF_CODE)) == CODE_VAR)
{
if (VALTOINT(TABGET(p,REF_SET)) == 0)
{
if (VALTOINT(TABGET(p,REF_USED)) > VALTOINT(TABGET(p,REF_USED_IN_IFDEF)))
PRINTF(m)(LOG_WARNING,"%s never gets a value\n",
STRSTART(VALTOPNT(TABGET(VALTOPNT(vlab),LABELLIST_NAME))));
}
else if (VALTOINT(TABGET(p,REF_SET)) == 1)
PRINTF(m)(LOG_WARNING,"%s is only set once, at declaration. It should be a const.\n",
STRSTART(VALTOPNT(TABGET(VALTOPNT(vlab),LABELLIST_NAME))));
}
}
recglobal(val,b);
return n;
}
// compilation d'une variable
// [name] -> 0
int Compiler::parsevar()
{
int k;
int hasvalue = 0;
if (!parser->next(0))
{
PRINTF(m)(LOG_COMPILER,"Compiler : ';;' expected (found EOF)\n");
return MTLERR_SN;
}
if (!strcmp(parser->token,"="))
{
if (k=parseval()) return k;
hasvalue = 1;
}
else
{
parser->giveback();
if (k=STACKPUSH(m,NIL)) return k;
if (k=createnodetype(TYPENAME_WEAK)) return k;
}
// [val type name]
if (k=parser->parsekeyword(";;")) return k;
int val=INTTOVAL(nblabels(globals));
if (k=addlabel(globals,STRSTART(VALTOPNT(STACKGET(m,2))),val,STACKGET(m,1))) return k; // enregistrement d'une nouvelle globale
// on crée le bloc fonction
newref=MALLOCCLEAR(m,REF_LENGTH);
if (!newref) return MTLERR_OM;
TABSET(m,newref,REF_TYPE,STACKPULL(m));
TABSET(m,newref,REF_VAL,STACKPULL(m));
TABSET(m,newref,REF_NAME,STACKPULL(m));
TABSET(m,newref,REF_CODE,INTTOVAL(CODE_VAR));
// la variable vient d'être créé, elle n'est donc ni utilisée ni modifiée encore
TABSET(m,newref,REF_USED,INTTOVAL(0));
TABSET(m,newref,REF_SET,INTTOVAL(hasvalue));
TABSET(m,newref,REF_USED_IN_IFDEF,INTTOVAL(0));
TABSET(m,newref,REF_PACKAGE,val);
if (k=STACKPUSH(m,PNTTOVAL(newref))) return MTLERR_OM; // [newref]
addreftopackage(newref,newpackage);
STACKDROP(m);
outputbuf->reinit();
outputbuf->printf("Compiler : var %s : ",STRSTART(VALTOPNT(TABGET(newref,REF_NAME))));
echograph(outputbuf,VALTOPNT(TABGET(newref,REF_TYPE)));
PRINTF(m)(LOG_COMPILER,"%s\n",outputbuf->getstart());
return 0;
}
int* Memory::storebinary(const char *src,int size)
{
// calcul de la taille d'un bloc pouvant contenir une certain nombre de caractères
// il faut 1 mot pour la taille et un octet nul final
int l=2+(size>>2);
int* p=malloc(l,TYPE_BINARY);
if (!p) return p;
STRSETLEN(p,size);
memcpy(STRSTART(p),src,size);
STRSTART(p)[size]=0;
return p;
}
int Compiler::recglobal(int val,Prodbuffer *b)
{
if (val==NIL)
{
b->addint(-1);
// printf("nil\n");
}
else if (ISVALPNT(val))
{
int *p=VALTOPNT(val);
if (HEADER_TYPE(p)==TYPE_TAB)
{
b->addint((TABLEN(p)<<2)+3);
// printf("tuple %d @ %x : %x\n",TABLEN(p),val,*p);
for(int i=0;i<TABLEN(p);i++) recglobal(TABGET(p,i),b);
}
else
{
b->addint((STRLEN(p)<<2)+1);
b->addstr(STRSTART(p),STRLEN(p));
// printf("'%s'\n",STRSTART(p));
}
}
else
{
b->addint(val);
// printf("%d\n",VALTOINT(val));
}
return 0;
}
int Compiler::recbc(int vref,Prodbuffer *b,Prodbuffer *btab,int offset)
{
if (vref==NIL) return -1;
int f=recbc(TABGET(VALTOPNT(vref),REF_NEXTALL),b,btab,offset);
if (f<-1) return f;
if (VALTOINT(TABGET(VALTOPNT(vref),REF_CODE))<0) return f;
int nf=VALTOINT(TABGET(VALTOPNT(vref),REF_PACKAGE));
if (nf<=f) return f;
if (TABGET(VALTOPNT(vref),REF_VAL)==NIL)
{
printf("%s is EMPTY !!!\n",STRSTART(VALTOPNT(TABGET(VALTOPNT(vref),REF_NAME))));
return -2;
}
int *fun=VALTOPNT(TABGET(VALTOPNT(vref),REF_VAL));
int nloc=VALTOINT(TABGET(fun,FUN_NBLOCALS))-VALTOINT(TABGET(fun,FUN_NBARGS));
int nargs=VALTOINT(TABGET(fun,FUN_NBARGS));
int ipc=b->getsize()-offset;
btab->addint(ipc);
b->addchar(nargs);
b->addshort(nloc);
b->addstr(STRSTART(VALTOPNT(TABGET(fun,FUN_BC))),STRLEN(VALTOPNT(TABGET(fun,FUN_BC))));
printf("%d@%d:%s nargs=%d nlocals=%d / %d bytes\n",nf,ipc,STRSTART(VALTOPNT(TABGET(VALTOPNT(vref),REF_NAME))),nargs,nloc,STRLEN(VALTOPNT(TABGET(fun,FUN_BC))));
return nf;
}
// compilation d'une constante (const var = val;;)
// [name] -> 0
int Compiler::parseconst()
{
int k;
if (k=parser->parsekeyword("=")) return k;
if (k=parseval()) return k;
if (k=parser->parsekeyword(";;")) return k;
int val=INTTOVAL(nblabels(globals));
if (k=addlabel(globals,STRSTART(VALTOPNT(STACKGET(m,2))),val,STACKGET(m,1))) return k; // enregistrement d'une nouvelle globale
// on crée le bloc fonction
newref=MALLOCCLEAR(m,REF_LENGTH);
if (!newref) return MTLERR_OM;
TABSET(m,newref,REF_TYPE,STACKPULL(m));
TABSET(m,newref,REF_VAL,STACKPULL(m));
TABSET(m,newref,REF_NAME,STACKPULL(m));
TABSET(m,newref,REF_CODE,INTTOVAL(CODE_CONST));
// la constante vient d'être créée, elle n'est donc pas utilisée, mais elle a une valeur
TABSET(m,newref,REF_USED,INTTOVAL(0));
TABSET(m,newref,REF_SET,INTTOVAL(1));
TABSET(m,newref,REF_USED_IN_IFDEF,INTTOVAL(0));
TABSET(m,newref,REF_PACKAGE,val);
if (k=STACKPUSH(m,PNTTOVAL(newref))) return MTLERR_OM; // [newref]
addreftopackage(newref,newpackage);
STACKDROP(m);
outputbuf->reinit();
outputbuf->printf("Compiler : const %s : ",STRSTART(VALTOPNT(TABGET(newref,REF_NAME))));
echograph(outputbuf,VALTOPNT(TABGET(newref,REF_TYPE)));
PRINTF(m)(LOG_COMPILER,"%s\n",outputbuf->getstart());
return 0;
}
int
limits_parse_one(
const char *arg,
struct slap_limits_set *limit
)
{
assert( arg != NULL );
assert( limit != NULL );
if ( STRSTART( arg, "time" ) ) {
arg += STRLENOF( "time" );
if ( arg[0] == '.' ) {
arg++;
if ( STRSTART( arg, "soft=" ) ) {
arg += STRLENOF( "soft=" );
if ( strcasecmp( arg, "unlimited" ) == 0
|| strcasecmp( arg, "none" ) == 0 )
{
limit->lms_t_soft = -1;
} else {
int soft;
if ( lutil_atoi( &soft, arg ) != 0 || soft < -1 ) {
return( 1 );
}
if ( soft == -1 ) {
/* FIXME: use "unlimited" instead; issue warning? */
}
limit->lms_t_soft = soft;
}
} else if ( STRSTART( arg, "hard=" ) ) {
arg += STRLENOF( "hard=" );
if ( strcasecmp( arg, "soft" ) == 0 ) {
limit->lms_t_hard = 0;
} else if ( strcasecmp( arg, "unlimited" ) == 0
|| strcasecmp( arg, "none" ) == 0 )
{
limit->lms_t_hard = -1;
} else {
int hard;
if ( lutil_atoi( &hard, arg ) != 0 || hard < -1 ) {
return( 1 );
}
if ( hard == -1 ) {
/* FIXME: use "unlimited" instead */
}
if ( hard == 0 ) {
/* FIXME: use "soft" instead */
}
limit->lms_t_hard = hard;
}
} else {
return( 1 );
}
} else if ( arg[0] == '=' ) {
arg++;
if ( strcasecmp( arg, "unlimited" ) == 0
|| strcasecmp( arg, "none" ) == 0 )
{
limit->lms_t_soft = -1;
} else {
if ( lutil_atoi( &limit->lms_t_soft, arg ) != 0
|| limit->lms_t_soft < -1 )
{
return( 1 );
}
}
limit->lms_t_hard = 0;
} else {
return( 1 );
}
} else if ( STRSTART( arg, "size" ) ) {
arg += STRLENOF( "size" );
if ( arg[0] == '.' ) {
arg++;
if ( STRSTART( arg, "soft=" ) ) {
arg += STRLENOF( "soft=" );
if ( strcasecmp( arg, "unlimited" ) == 0
|| strcasecmp( arg, "none" ) == 0 )
{
limit->lms_s_soft = -1;
} else {
int soft;
if ( lutil_atoi( &soft, arg ) != 0 || soft < -1 ) {
return( 1 );
}
if ( soft == -1 ) {
/* FIXME: use "unlimited" instead */
}
limit->lms_s_soft = soft;
}
} else if ( STRSTART( arg, "hard=" ) ) {
arg += STRLENOF( "hard=" );
if ( strcasecmp( arg, "soft" ) == 0 ) {
limit->lms_s_hard = 0;
} else if ( strcasecmp( arg, "unlimited" ) == 0
|| strcasecmp( arg, "none" ) == 0 )
{
limit->lms_s_hard = -1;
} else {
int hard;
if ( lutil_atoi( &hard, arg ) != 0 || hard < -1 ) {
return( 1 );
}
if ( hard == -1 ) {
/* FIXME: use "unlimited" instead */
}
if ( hard == 0 ) {
/* FIXME: use "soft" instead */
}
limit->lms_s_hard = hard;
}
} else if ( STRSTART( arg, "unchecked=" ) ) {
arg += STRLENOF( "unchecked=" );
if ( strcasecmp( arg, "unlimited" ) == 0
|| strcasecmp( arg, "none" ) == 0 )
{
limit->lms_s_unchecked = -1;
} else if ( strcasecmp( arg, "disabled" ) == 0 ) {
limit->lms_s_unchecked = 0;
} else {
int unchecked;
if ( lutil_atoi( &unchecked, arg ) != 0 || unchecked < -1 ) {
return( 1 );
}
if ( unchecked == -1 ) {
/* FIXME: use "unlimited" instead */
}
limit->lms_s_unchecked = unchecked;
}
} else if ( STRSTART( arg, "pr=" ) ) {
arg += STRLENOF( "pr=" );
if ( strcasecmp( arg, "noEstimate" ) == 0 ) {
limit->lms_s_pr_hide = 1;
} else if ( strcasecmp( arg, "unlimited" ) == 0
|| strcasecmp( arg, "none" ) == 0 )
{
limit->lms_s_pr = -1;
} else {
int pr;
if ( lutil_atoi( &pr, arg ) != 0 || pr < -1 ) {
return( 1 );
}
if ( pr == -1 ) {
/* FIXME: use "unlimited" instead */
}
limit->lms_s_pr = pr;
}
} else if ( STRSTART( arg, "prtotal=" ) ) {
arg += STRLENOF( "prtotal=" );
if ( strcasecmp( arg, "unlimited" ) == 0
|| strcasecmp( arg, "none" ) == 0 )
{
limit->lms_s_pr_total = -1;
} else if ( strcasecmp( arg, "disabled" ) == 0 ) {
limit->lms_s_pr_total = -2;
} else if ( strcasecmp( arg, "hard" ) == 0 ) {
limit->lms_s_pr_total = 0;
} else {
int total;
if ( lutil_atoi( &total, arg ) != 0 || total < -1 ) {
return( 1 );
}
if ( total == -1 ) {
/* FIXME: use "unlimited" instead */
}
if ( total == 0 ) {
/* FIXME: use "pr=disable" instead */
}
limit->lms_s_pr_total = total;
}
} else {
return( 1 );
}
} else if ( arg[0] == '=' ) {
arg++;
if ( strcasecmp( arg, "unlimited" ) == 0
|| strcasecmp( arg, "none" ) == 0 )
{
limit->lms_s_soft = -1;
} else {
if ( lutil_atoi( &limit->lms_s_soft, arg ) != 0
|| limit->lms_s_soft < -1 )
{
return( 1 );
}
}
limit->lms_s_hard = 0;
} else {
return( 1 );
}
}
return 0;
}
int
limits_parse(
Backend *be,
const char *fname,
int lineno,
int argc,
char **argv
)
{
int flags = SLAP_LIMITS_UNDEFINED;
char *pattern;
struct slap_limits_set limit;
int i, rc = 0;
ObjectClass *group_oc = NULL;
AttributeDescription *group_ad = NULL;
assert( be != NULL );
if ( argc < 3 ) {
Debug( LDAP_DEBUG_ANY,
"%s : line %d: missing arg(s) in "
"\"limits <pattern> <limits>\" line.\n%s",
fname, lineno, "" );
return( -1 );
}
limit = be->be_def_limit;
/*
* syntax:
*
* "limits" <pattern> <limit> [ ... ]
*
*
* <pattern>:
*
* "anonymous"
* "users"
* [ "dn" [ "." { "this" | "self" } ] [ "." { "exact" | "base" |
* "onelevel" | "subtree" | "children" | "regex" | "anonymous" } ]
* "=" ] <dn pattern>
*
* Note:
* "this" is the baseobject, "self" (the default) is the bound DN
* "exact" and "base" are the same (exact match);
* "onelevel" means exactly one rdn below, NOT including pattern
* "subtree" means any rdn below, including pattern
* "children" means any rdn below, NOT including pattern
*
* "anonymous" may be deprecated in favour
* of the pattern = "anonymous" form
*
* "group[/objectClass[/attributeType]]" "=" "<dn pattern>"
*
* <limit>:
*
* "time" [ "." { "soft" | "hard" } ] "=" <integer>
*
* "size" [ "." { "soft" | "hard" | "unchecked" } ] "=" <integer>
*/
pattern = argv[1];
if ( strcmp( pattern, "*" ) == 0) {
flags = SLAP_LIMITS_ANY;
} else if ( strcasecmp( pattern, "anonymous" ) == 0 ) {
flags = SLAP_LIMITS_ANONYMOUS;
} else if ( strcasecmp( pattern, "users" ) == 0 ) {
flags = SLAP_LIMITS_USERS;
} else if ( STRSTART( pattern, "dn" ) ) {
pattern += STRLENOF( "dn" );
flags = SLAP_LIMITS_TYPE_SELF;
if ( pattern[0] == '.' ) {
pattern++;
if ( STRSTART( pattern, "this" ) ) {
flags = SLAP_LIMITS_TYPE_THIS;
pattern += STRLENOF( "this" );
} else if ( STRSTART( pattern, "self" ) ) {
pattern += STRLENOF( "self" );
} else {
goto got_dn_dot;
}
}
if ( pattern[0] == '.' ) {
pattern++;
got_dn_dot:
if ( STRSTART( pattern, "exact" ) ) {
flags |= SLAP_LIMITS_EXACT;
pattern += STRLENOF( "exact" );
} else if ( STRSTART( pattern, "base" ) ) {
flags |= SLAP_LIMITS_BASE;
pattern += STRLENOF( "base" );
} else if ( STRSTART( pattern, "one" ) ) {
flags |= SLAP_LIMITS_ONE;
pattern += STRLENOF( "one" );
if ( STRSTART( pattern, "level" ) ) {
pattern += STRLENOF( "level" );
} else {
Debug( LDAP_DEBUG_ANY,
"%s : line %d: deprecated \"one\" style "
"\"limits <pattern> <limits>\" line; "
"use \"onelevel\" instead.\n", fname, lineno, 0 );
}
} else if ( STRSTART( pattern, "sub" ) ) {
flags |= SLAP_LIMITS_SUBTREE;
pattern += STRLENOF( "sub" );
if ( STRSTART( pattern, "tree" ) ) {
pattern += STRLENOF( "tree" );
} else {
Debug( LDAP_DEBUG_ANY,
"%s : line %d: deprecated \"sub\" style "
"\"limits <pattern> <limits>\" line; "
"use \"subtree\" instead.\n", fname, lineno, 0 );
}
} else if ( STRSTART( pattern, "children" ) ) {
flags |= SLAP_LIMITS_CHILDREN;
pattern += STRLENOF( "children" );
} else if ( STRSTART( pattern, "regex" ) ) {
flags |= SLAP_LIMITS_REGEX;
pattern += STRLENOF( "regex" );
/*
* this could be deprecated in favour
* of the pattern = "anonymous" form
*/
} else if ( STRSTART( pattern, "anonymous" )
&& flags == SLAP_LIMITS_TYPE_SELF )
{
flags = SLAP_LIMITS_ANONYMOUS;
pattern = NULL;
} else {
/* force error below */
if ( *pattern == '=' )
--pattern;
}
}
/* pre-check the data */
if ( pattern != NULL ) {
if ( pattern[0] != '=' ) {
Debug( LDAP_DEBUG_ANY,
"%s : line %d: %s in "
"\"dn[.{this|self}][.{exact|base"
"|onelevel|subtree|children|regex"
"|anonymous}]=<pattern>\" in "
"\"limits <pattern> <limits>\" line.\n",
fname, lineno,
isalnum( (unsigned char)pattern[0] )
? "unknown DN modifier" : "missing '='" );
return( -1 );
}
/* skip '=' (required) */
pattern++;
/* trim obvious cases */
if ( strcmp( pattern, "*" ) == 0 ) {
flags = SLAP_LIMITS_ANY;
pattern = NULL;
} else if ( (flags & SLAP_LIMITS_MASK) == SLAP_LIMITS_REGEX
&& strcmp( pattern, ".*" ) == 0 ) {
flags = SLAP_LIMITS_ANY;
pattern = NULL;
}
}
} else if (STRSTART( pattern, "group" ) ) {
pattern += STRLENOF( "group" );
if ( pattern[0] == '/' ) {
struct berval oc, ad;
oc.bv_val = pattern + 1;
pattern = strchr( pattern, '=' );
if ( pattern == NULL ) {
return -1;
}
ad.bv_val = strchr( oc.bv_val, '/' );
if ( ad.bv_val != NULL ) {
const char *text = NULL;
oc.bv_len = ad.bv_val - oc.bv_val;
ad.bv_val++;
ad.bv_len = pattern - ad.bv_val;
rc = slap_bv2ad( &ad, &group_ad, &text );
if ( rc != LDAP_SUCCESS ) {
goto no_ad;
}
} else {
oc.bv_len = pattern - oc.bv_val;
}
group_oc = oc_bvfind( &oc );
if ( group_oc == NULL ) {
goto no_oc;
}
}
if ( group_oc == NULL ) {
group_oc = oc_find( SLAPD_GROUP_CLASS );
if ( group_oc == NULL ) {
no_oc:;
return( -1 );
}
}
if ( group_ad == NULL ) {
const char *text = NULL;
rc = slap_str2ad( SLAPD_GROUP_ATTR, &group_ad, &text );
if ( rc != LDAP_SUCCESS ) {
no_ad:;
return( -1 );
}
}
flags = SLAP_LIMITS_TYPE_GROUP | SLAP_LIMITS_EXACT;
if ( pattern[0] != '=' ) {
Debug( LDAP_DEBUG_ANY,
"%s : line %d: missing '=' in "
"\"group[/objectClass[/attributeType]]"
"=<pattern>\" in "
"\"limits <pattern> <limits>\" line.\n",
fname, lineno, 0 );
return( -1 );
}
/* skip '=' (required) */
pattern++;
}
/* get the limits */
for ( i = 2; i < argc; i++ ) {
if ( limits_parse_one( argv[i], &limit ) ) {
Debug( LDAP_DEBUG_ANY,
"%s : line %d: unknown limit values \"%s\" in "
"\"limits <pattern> <limits>\" line.\n",
fname, lineno, argv[i] );
return( 1 );
}
}
/*
* sanity checks ...
*
* FIXME: add warnings?
*/
if ( limit.lms_t_hard > 0 &&
( limit.lms_t_hard < limit.lms_t_soft
|| limit.lms_t_soft == -1 ) ) {
limit.lms_t_hard = limit.lms_t_soft;
}
if ( limit.lms_s_hard > 0 &&
( limit.lms_s_hard < limit.lms_s_soft
|| limit.lms_s_soft == -1 ) ) {
limit.lms_s_hard = limit.lms_s_soft;
}
/*
* defaults ...
*
* lms_t_hard:
* -1 => no limits
* 0 => same as soft
* > 0 => limit (in seconds)
*
* lms_s_hard:
* -1 => no limits
* 0 0> same as soft
* > 0 => limit (in entries)
*
* lms_s_pr_total:
* -2 => disable the control
* -1 => no limits
* 0 => same as soft
* > 0 => limit (in entries)
*
* lms_s_pr:
* -1 => no limits
* 0 => no limits?
* > 0 => limit size (in entries)
*/
if ( limit.lms_s_pr_total > 0 &&
limit.lms_s_pr > limit.lms_s_pr_total ) {
limit.lms_s_pr = limit.lms_s_pr_total;
}
rc = limits_add( be, flags, pattern, group_oc, group_ad, &limit );
if ( rc ) {
Debug( LDAP_DEBUG_ANY,
"%s : line %d: unable to add limit in "
"\"limits <pattern> <limits>\" line.\n",
fname, lineno, 0 );
}
return( rc );
}
// compilation d'une somme
// [locals nom]
int Compiler::parsesum()
{
int k;
// on crée le bloc type
TABSET(m,newref,REF_VAL,INTTOVAL(0));
TABSET(m,newref,REF_CODE,INTTOVAL(CODE_SUM));
// [local name]
int loop=1;
do
{
if (!parser->next(0))
{
PRINTF(m)(LOG_COMPILER,"Compiler : constructor expected (found EOF)\n");
return MTLERR_SN;
}
if (islabel(parser->token))
{
if (k=STRPUSH(m,parser->token)) return k;
// on crée le bloc champ
int* newcons=MALLOCCLEAR(m,REF_LENGTH);
if (!newcons) return MTLERR_OM;
TABSET(m,newcons,REF_NAME,STACKPULL(m));
if (k=STACKPUSH(m,PNTTOVAL(newcons))) return MTLERR_OM; // [newcons local name]
addreftopackage(newcons,newpackage);
STACKDROP(m);
// [local name]
TABSET(m,newcons,REF_VAL,TABGET(newref,REF_VAL));
TABSET(m,newref,REF_VAL,INTTOVAL(1+VALTOINT(TABGET(newref,REF_VAL)))); // incrémentation
if (k=createnodetype(TYPENAME_FUN)) return k;
if ((parser->next(0))&&((!strcmp(parser->token,"|"))||(!strcmp(parser->token,";;"))))
{
parser->giveback();
if (k=createnodetuple(0)) return k;
TABSET(m,newcons,REF_CODE,INTTOVAL(CODE_CONS0));
}
else
{
parser->giveback();
if (k=creategraph(parser,PNTTOVAL(newpackage),1,locals)) return k;
if (k=createnodetuple(1)) return k;
TABSET(m,newcons,REF_CODE,INTTOVAL(CODE_CONS));
}
TABSET(m,VALTOPNT(STACKGET(m,1)),TYPEHEADER_LENGTH,STACKGET(m,0)); // attachement du noeud tuple au noeud fun
STACKDROP(m);
TABSET(m,VALTOPNT(STACKGET(m,0)),TYPEHEADER_LENGTH+1,TABGET(newref,REF_TYPE)); // attachement du type resultat au noeud fun
TABSET(m,newcons,REF_TYPE,STACKPULL(m));
outputbuf->reinit();
outputbuf->printf("Compiler : %s : ",STRSTART(VALTOPNT(TABGET(newcons,REF_NAME))));
echograph(outputbuf,VALTOPNT(TABGET(newcons,REF_TYPE)));
PRINTF(m)(LOG_COMPILER,"%s\n",outputbuf->getstart());
}
else
{
PRINTF(m)(LOG_COMPILER,"Compiler : constructor expected (found '%s')\n",parser->token);
return MTLERR_SN;
}
if (!parser->next(0))
{
PRINTF(m)(LOG_COMPILER,"Compiler : '|' or ';;' expected (found EOF)\n");
return MTLERR_SN;
}
if (!strcmp(parser->token,";;")) loop=0;
else if (strcmp(parser->token,"|"))
{
PRINTF(m)(LOG_COMPILER,"Compiler : '|' or ';;' expected (found '%s')\n",parser->token);
return MTLERR_SN;
}
} while(loop);
STACKDROPN(m,2);
outputbuf->reinit();
outputbuf->printf("Compiler : ");
echograph(outputbuf,VALTOPNT(TABGET(newref,REF_TYPE)));
outputbuf->printf(" : constructor\n");
PRINTF(m)(LOG_COMPILER,"%s\n",outputbuf->getstart());
return 0;
}
// compilation d'une structure (le premier '[' a été lu)
// [locals nom]
int Compiler::parsestruct()
{
int k;
// on crée le bloc type
TABSET(m,newref,REF_VAL,INTTOVAL(0));
TABSET(m,newref,REF_CODE,INTTOVAL(CODE_STRUCT));
// [local name]
int loop=1;
do
{
if (!parser->next(0))
{
PRINTF(m)(LOG_COMPILER,"Compiler : field name or ']' expected (found EOF)\n");
return MTLERR_SN;
}
if (islabel(parser->token))
{
if (k=STRPUSH(m,parser->token)) return k;
// on crée le bloc champ
int* newfield=MALLOCCLEAR(m,REF_LENGTH);
if (!newfield) return MTLERR_OM;
TABSET(m,newfield,REF_NAME,STACKPULL(m));
TABSET(m,newfield,REF_CODE,INTTOVAL(CODE_FIELD));
if (k=STACKPUSH(m,PNTTOVAL(newfield))) return MTLERR_OM; // [newfield local name]
addreftopackage(newfield,newpackage);
STACKDROP(m);
// [local name]
if (k=STACKPUSH(m,TABGET(newref,REF_VAL))) return k;
if (k=STACKPUSH(m,PNTTOVAL(newref))) return k;
if (k=DEFTAB(m,FIELD_LENGTH)) return k;
TABSET(m,newfield,REF_VAL,STACKPULL(m));
TABSET(m,newref,REF_VAL,INTTOVAL(1+VALTOINT(TABGET(newref,REF_VAL)))); // incrémentation
if (k=createnodetype(TYPENAME_FUN)) return k;
if (k=STACKPUSH(m,TABGET(newref,REF_TYPE))) return k;
if (k=createnodetuple(1)) return k;
TABSET(m,VALTOPNT(STACKGET(m,1)),TYPEHEADER_LENGTH,STACKGET(m,0)); // attachement du noeud tuple au noeud fun
STACKDROP(m);
if ((!parser->next(0))||(strcmp(parser->token,":")))
{
parser->giveback();
k=createnodetype(TYPENAME_WEAK);
}
else k=creategraph(parser,PNTTOVAL(newpackage),1,locals);
if (k) return k;
TABSET(m,VALTOPNT(STACKGET(m,1)),TYPEHEADER_LENGTH+1,STACKGET(m,0)); // attachement du noeud resultat au noeud fun
STACKDROP(m);
TABSET(m,newfield,REF_TYPE,STACKPULL(m));
outputbuf->reinit();
outputbuf->printf("Compiler : %s : ",STRSTART(VALTOPNT(TABGET(newfield,REF_NAME))));
echograph(outputbuf,VALTOPNT(TABGET(newfield,REF_TYPE)));
PRINTF(m)(LOG_COMPILER,"%s\n",outputbuf->getstart());
}
else if (!strcmp(parser->token,"]")) loop=0;
else
{
PRINTF(m)(LOG_COMPILER,"Compiler : field name or ']' expected (found '%s')\n",parser->token);
return MTLERR_SN;
}
} while(loop);
if (k=parser->parsekeyword(";;")) return k;
STACKDROPN(m,2);
outputbuf->reinit();
outputbuf->printf("Compiler : ");
echograph(outputbuf,VALTOPNT(TABGET(newref,REF_TYPE)));
outputbuf->printf(" : struct (%d)\n",VALTOINT(TABGET(newref,REF_VAL)));
PRINTF(m)(LOG_COMPILER,"%s\n",outputbuf->getstart());
return 0;
}
// compilation d'un type
// [name] -> 0
int Compiler::parsetype()
{
int k;
// PRINTF(m)(LOG_DEVCORE,"type %s\n",STRSTART(VALTOPNT(STACKGET(m,0))));
char* name=STRSTART(VALTOPNT(STACKGET(m,0)));
// création des variables de travail
if (k=STACKPUSH(m,NIL)) return k; // LOCALS
locals=STACKREF(m);
newref=searchemptytype(PNTTOVAL(newpackage),name);
int mergetype=1;
if (newref)
{
if (k=createnodetypecore(TABGET(VALTOPNT(TABGET(newref,REF_TYPE)),TYPEHEADER_LENGTH+1))) return k;
}
else
{
mergetype=0;
if (k=createnodetypecore(STACKGET(m,1))) return k;
newref=MALLOCCLEAR(m,REF_LENGTH);
if (!newref) return MTLERR_OM;
TABSET(m,newref,REF_CODE,INTTOVAL(CODE_EMPTYTYPE));
TABSET(m,newref,REF_TYPE,STACKGET(m,0));
if (k=STACKPUSH(m,PNTTOVAL(newref))) return MTLERR_OM; // [newtyp local name]
addreftopackage(newref,newpackage);
STACKDROP(m);
}
int narg=0;
if (parser->next(0))
{
if (strcmp(parser->token,"(")) parser->giveback();
else
{
do
{
if (!parser->next(0))
{
PRINTF(m)(LOG_COMPILER,"Compiler : parameter or ')' expected (found EOF)\n");
return MTLERR_SN;
}
if (islabel(parser->token))
{
if (k=createnodetype(TYPENAME_UNDEF)) return k;
if (k=addlabel(locals,parser->token,STACKGET(m,0),INTTOVAL(narg++))) return k;
}
else if (strcmp(parser->token,")"))
{
PRINTF(m)(LOG_COMPILER,"Compiler : parameter or ')' expected (found '%s')\n",parser->token);
return MTLERR_SN;
}
} while(strcmp(parser->token,")"));
if (k=DEFTAB(m,narg)) return k;
TABSET(m,VALTOPNT(STACKGET(m,1)),TYPEHEADER_LENGTH,STACKGET(m,0));
STACKDROP(m);
}
}
if (!mergetype) STACKDROP(m);
else if (k=unif(VALTOPNT(STACKPULL(m)),VALTOPNT(TABGET(newref,REF_TYPE)))) return k;
if (!parser->next(0))
{
PRINTF(m)(LOG_COMPILER,"Compiler : '=' or ';;' expected (found EOF)\n");
return MTLERR_SN;
}
if (!strcmp(parser->token,"="))
{
if (!parser->next(0))
{
PRINTF(m)(LOG_COMPILER,"Compiler : uncomplete type definition (found EOF)\n");
return MTLERR_SN;
}
if (!strcmp(parser->token,"[")) return parsestruct();
parser->giveback();
return parsesum();
}
else if (!strcmp(parser->token,";;"))
{
STACKDROPN(m,2);
outputbuf->reinit();
outputbuf->printf("Compiler : uncompleted type : ");
echograph(outputbuf,VALTOPNT(TABGET(newref,REF_TYPE)));
PRINTF(m)(LOG_COMPILER,"%s\n",outputbuf->getstart());
return 0;
}
PRINTF(m)(LOG_COMPILER,"Compiler : '=' or ';;' expected (found '%s')\n",parser->token);
return MTLERR_SN;
}
// compilation d'un prototype
// [name] -> 0
int Compiler::parseproto()
{
int k;
if (!parser->next(0))
{
PRINTF(m)(LOG_COMPILER,"Compiler : integer or '=' expected (found EOF)\n");
return MTLERR_SN;
}
int nbarg=-1;
if (!strcmp(parser->token,"="))
{
if (k=creategraph(parser,PNTTOVAL(newpackage),0)) return k;
int vp=STACKGET(m,0);
if (vp!=NIL)
{
int* p=VALTOPNT(vp);
if (TABGET(p,TYPEHEADER_CODE)==INTTOVAL(TYPENAME_FUN))
{
vp=TABGET(p,TYPEHEADER_LENGTH);
if (vp!=NIL)
{
int* p=VALTOPNT(vp);
if (TABGET(p,TYPEHEADER_CODE)==INTTOVAL(TYPENAME_TUPLE))
{
nbarg=TABLEN(p)-TYPEHEADER_LENGTH;
}
}
}
}
if (nbarg<0)
{
PRINTF(m)(LOG_COMPILER,"Compiler : function type expected\n");
return MTLERR_SN;
}
}
else if (isdecimal(parser->token))
{
nbarg=mtl_atoi(parser->token);
if (k=createnodetype(TYPENAME_FUN)) return k;
int i;for(i=0;i<nbarg;i++) if (k=createnodetype(TYPENAME_WEAK)) return k;
if (k=createnodetuple(nbarg)) return k;
TABSET(m,VALTOPNT(STACKGET(m,1)),TYPEHEADER_LENGTH,STACKGET(m,0)); // attachement du noeud tuple au noeud fun
STACKDROP(m);
if (k=createnodetype(TYPENAME_WEAK)) return k; // noeud résultat
TABSET(m,VALTOPNT(STACKGET(m,1)),TYPEHEADER_LENGTH+1,STACKGET(m,0)); // attachement du noeud resultat au noeud fun
STACKDROP(m);
}
if (nbarg<0)
{
PRINTF(m)(LOG_COMPILER,"Compiler : integer or '=' expected (found '%s')\n",parser->token);
return MTLERR_SN;
}
if (k=parser->parsekeyword(";;")) return k;
// on crée le bloc fonction
newref=MALLOCCLEAR(m,REF_LENGTH);
if (!newref) return MTLERR_OM;
TABSET(m,newref,REF_TYPE,STACKPULL(m));
TABSET(m,newref,REF_NAME,STACKPULL(m));
TABSET(m,newref,REF_CODE,INTTOVAL(nbarg));
TABSET(m,newref,REF_PACKAGE,INTTOVAL(ifuns++));
if (k=STACKPUSH(m,PNTTOVAL(newref))) return MTLERR_OM; // [newref]
addreftopackage(newref,newpackage);
STACKDROP(m);
outputbuf->reinit();
outputbuf->printf("Compiler : proto %s : ",STRSTART(VALTOPNT(TABGET(newref,REF_NAME))));
echograph(outputbuf,VALTOPNT(TABGET(newref,REF_TYPE)));
PRINTF(m)(LOG_COMPILER,"%s\n",outputbuf->getstart());
return 0;
}
// compilation d'une fonction
// [name] -> 0
int Compiler::parsefun()
{
int k;
int* type_result;
// PRINTF(m)(LOG_DEVCORE,"fonction %s\n",STRSTART(VALTOPNT(STACKGET(m,0))));
char* name=STRSTART(VALTOPNT(STACKGET(m,0)));
// création des variables de travail
if (k=STACKPUSH(m,NIL)) return k; // LOCALS
locals=STACKREF(m);
if (k=createnodetype(TYPENAME_FUN)) return k;
// recherche des arguments
int narg=0;
do
{
if (!parser->next(0))
{
PRINTF(m)(LOG_COMPILER,"Compiler : argument or '=' expected (found EOF)\n");
return MTLERR_SN;
}
if (islabel(parser->token))
{
if (k=createnodetype(TYPENAME_UNDEF)) return k;
if (k=addlabel(locals,parser->token,INTTOVAL(narg++),STACKGET(m,0))) return k;
}
else if (strcmp(parser->token,"="))
{
PRINTF(m)(LOG_COMPILER,"Compiler : argument or '=' expected (found '%s')\n",parser->token);
return MTLERR_SN;
}
} while(strcmp(parser->token,"="));
// construction du type initial de la fonction
if (k=createnodetuple(narg)) return k;
TABSET(m,VALTOPNT(STACKGET(m,1)),TYPEHEADER_LENGTH,STACKGET(m,0)); // attachement du noeud tuple au noeud fun
STACKDROP(m);
if (k=createnodetype(TYPENAME_UNDEF)) return k; // noeud résultat
TABSET(m,VALTOPNT(STACKGET(m,1)),TYPEHEADER_LENGTH+1,STACKGET(m,0)); // attachement du noeud resultat au noeud fun
type_result=VALTOPNT(STACKPULL(m)); // on garde en mémoire le type du résultat
// ici : [type local global name]
// on crée le bloc fonction
newref=MALLOCCLEAR(m,REF_LENGTH);
if (!newref) return MTLERR_OM;
TABSET(m,newref,REF_TYPE,STACKPULL(m));
TABSET(m,newref,REF_NAME,STACKGET(m,1));
TABSET(m,newref,REF_CODE,INTTOVAL(narg));
// vient d'être déclarée, pas encore utilisée
TABSET(m,newref,REF_USED,INTTOVAL(0));
k=findproto(PNTTOVAL(newpackage),newref);
TABSET(m,newref,REF_PACKAGE,(k!=NIL)?k:INTTOVAL(ifuns++));
if (k=STACKPUSH(m,PNTTOVAL(newref))) return MTLERR_OM; // [newref local global name]
addreftopackage(newref,newpackage);
STACKDROP(m);
// [local global name]
// on poursuit la compilation vers le corps de la fonction
nblocals=narg;
bc->reinit(); // initialisation de la production de bytecode
// [locals globals]
// parsing
if (k=parseprogram()) return k;
// [type locals globals]
// la pile contient le type du résultat de la fonction
if (k=parser->parsekeyword(";;")) return k;
// unifier le type résultat
if (k=unif(type_result,VALTOPNT(STACKGET(m,0)))) return k;
STACKDROP(m);
// [locals globals name]
// créer le bloc programme
int* fun=MALLOCCLEAR(m,FUN_LENGTH);
if (!fun) return MTLERR_OM;
TABSET(m,newref,REF_VAL,PNTTOVAL(fun));
TABSET(m,fun,FUN_NBARGS,INTTOVAL(narg));
TABSET(m,fun,FUN_NBLOCALS,INTTOVAL(nblocals));
// stocker le bytecode
bc->addchar(OPret);
if (k=STRPUSHBINARY(m,bc->getstart(),bc->getsize())) return k;
TABSET(m,fun,FUN_BC,STACKPULL(m));
if (!strcmp(name,"awcConnect"))
displaybc(m,STRSTART(VALTOPNT(TABGET(fun,FUN_BC))));
// construire le tuple des références globales
// int* globalstuple=tuplefromlabels(globals);
// if (!globalstuple) return MTLERR_OM;
// TABSET(m,fun,FUN_REF,PNTTOVAL(globalstuple));
TABSET(m,fun,FUN_REFERENCE,PNTTOVAL(newref));
STACKDROPN(m,2);
// []
// chercher d'éventuels prototypes
if (k=fillproto(PNTTOVAL(newpackage),newref)) return k;
outputbuf->reinit();
outputbuf->printf("Compiler : %s : ",STRSTART(VALTOPNT(TABGET(newref,REF_NAME))));
echograph(outputbuf,VALTOPNT(TABGET(newref,REF_TYPE)));
PRINTF(m)(LOG_COMPILER,"%s\n",outputbuf->getstart());
return 0;
}
int Compiler::parsefile(int ifdef)
{
int k;
while(parser->next(0))
{
if (!strcmp(parser->token,"fun"))
{
if ((!parser->next(0))||(!islabel(parser->token)))
{
if (parser->token) PRINTF(m)(LOG_COMPILER,"Compiler : name of function expected (found '%s')\n",parser->token);
else PRINTF(m)(LOG_COMPILER,"Compiler : name of function expected (found EOF)\n");
return MTLERR_SN;
}
if (k=STRPUSH(m,parser->token)) return k;
int* s=VALTOPNT(STACKGET(m,0));
if (k=parsefun())
{
PRINTF(m)(LOG_COMPILER,"Compiler : error compiling function '%s'\n",STRSTART(s));
return k;
}
}
else if (!strcmp(parser->token,"type"))
{
if ((!parser->next(0))||(!islabel(parser->token)))
{
if (parser->token) PRINTF(m)(LOG_COMPILER,"Compiler : name of type expected (found '%s')\n",parser->token);
else PRINTF(m)(LOG_COMPILER,"Compiler : name of type expected (found EOF)\n");
return MTLERR_SN;
}
if (k=STRPUSH(m,parser->token)) return k;
int* s=VALTOPNT(STACKGET(m,0));
if (k=parsetype())
{
PRINTF(m)(LOG_COMPILER,"Compiler : error compiling type '%s'\n",STRSTART(s));
return k;
}
}
else if (!strcmp(parser->token,"var"))
{
if ((!parser->next(0))||(!islabel(parser->token)))
{
if (parser->token) PRINTF(m)(LOG_COMPILER,"Compiler : name of reference expected (found '%s')\n",parser->token);
else PRINTF(m)(LOG_COMPILER,"Compiler : name of reference expected (found EOF)\n");
return MTLERR_SN;
}
if (k=STRPUSH(m,parser->token)) return k;
int* s=VALTOPNT(STACKGET(m,0));
if (k=parsevar())
{
PRINTF(m)(LOG_COMPILER,"Compiler : error compiling var '%s'\n",STRSTART(s));
return k;
}
}
else if (!strcmp(parser->token,"const"))
{
if ((!parser->next(0))||(!islabel(parser->token)))
{
if (parser->token)
PRINTF(m)(LOG_COMPILER,"Compiler : name of reference expected (found '%s')\n",parser->token);
else
PRINTF(m)(LOG_COMPILER,"Compiler : name of reference expected (found EOF)");
return MTLERR_SN;
}
if (k=STRPUSH(m,parser->token)) return k;
int *s=VALTOPNT(STACKGET(m,0));
if (k=parseconst())
{
PRINTF(m)(LOG_COMPILER,"Compiler : error compiling const '%s'\n",STRSTART(s));
return k;
}
}
else if (!strcmp(parser->token,"proto"))
{
if ((!parser->next(0))||(!islabel(parser->token)))
{
if (parser->token) PRINTF(m)(LOG_COMPILER,"Compiler : name of function expected (found '%s')\n",parser->token);
else PRINTF(m)(LOG_COMPILER,"Compiler : name of function expected (found EOF)\n");
return MTLERR_SN;
}
if (k=STRPUSH(m,parser->token)) return k;
int* s=VALTOPNT(STACKGET(m,0));
if (k=parseproto())
{
PRINTF(m)(LOG_COMPILER,"Compiler : error compiling proto '%s'\n",STRSTART(s));
return k;
}
}
else if (!strcmp(parser->token,"ifdef"))
{
if (k=parseifdef(0)) return k;
}
else if (!strcmp(parser->token,"ifndef"))
{
if (k=parseifdef(1)) return k;
}
else if ((ifdef)&&(!strcmp(parser->token,"}")))
{
parser->giveback();
return 0;
}
else
{
PRINTF(m)(LOG_COMPILER,"Compiler : unknown token %s\n",parser->token);
return MTLERR_SN;
}
}
return 0;
}
// compilation
// [filename/src packages] -> [packages]
int Compiler::gocompile(int type)
{
int k;
if (STACKGET(m,0)==NIL)
{
STACKDROP(m);
return 0;
}
char* name=STRSTART(VALTOPNT(STACKGET(m,0)));
if (type==COMPILE_FROMFILE)
{
parser=new Parser(m->term,m->filesystem,name);
PRINTF(m)(LOG_COMPILER,"Compiler : compiling file '%s'\n",name);
}
else
{
parser=new Parser(m->term,name);
name="...";
PRINTF(m)(LOG_COMPILER,"Compiler : compiling string buffer\n");
}
if (k=createpackage(name,4)) return k; // [package nom_fichier env]
TABSET(m,VALTOPNT(STACKGET(m,0)),PACK_NEXT,STACKGET(m,2));
STACKSET(m,2,STACKGET(m,0)); // [newenv nom_fichier newenv]
STACKDROPN(m,2); // [newenv]
newpackage=VALTOPNT(STACKGET(m,0));
// parsing
//### ici on doit pouvoir ajouter la liste des globales et la liste des fonctions
//### c'est ici également qu'on va réinitialiser la structure bc
if (k=STACKPUSH(m,NIL)) return k; // GLOBALS
globals=STACKREF(m);
ifuns=0;
k=parsefile(0);
//### c'est fait, on a le bytecode, la liste des fonctions, et la liste des globales
if (!k)
{
Prodbuffer* btab=new Prodbuffer();
int n=nblabels(globals);
brelease->addint(0);
recglobals(STACKGETFROMREF(m,globals,0),brelease);
brelease->setint(0,brelease->getsize());
int sizebc=brelease->getsize();
brelease->addint(0); // on prépare le champ pour la taille du bytecode
int* p=VALTOPNT(TABGET(newpackage,PACK_HACH));
int vref=TABGET(p,TABLEN(p)-1);
int nfun=recbc(vref,brelease,btab,sizebc+4);
if (nfun<0) return nfun;
brelease->setint(sizebc,brelease->getsize()-sizebc-4);
brelease->addshort(nfun+1);
brelease->addstr(btab->getstart(),btab->getsize());
delete btab;
}
if (k) parser->echoposition();
PRINTF(m)(LOG_COMPILER,"\n");
// dumppackage(STACKGET(m,0));
delete parser;
return k;
}