/* --------------------------------------------------------------------------
* Primitives for manipulating global data structures
*
- * Hugs 98 is Copyright (c) Mark P Jones, Alastair Reid and the Yale
- * Haskell Group 1994-99, and is distributed as Open Source software
- * under the Artistic License; see the file "Artistic" that is included
- * in the distribution for details.
+ * The Hugs 98 system is Copyright (c) Mark P Jones, Alastair Reid, the
+ * Yale Haskell Group, and the Oregon Graduate Institute of Science and
+ * Technology, 1994-1999, All rights reserved. It is distributed as
+ * free software under the license in the file "License", which is
+ * included in the distribution.
*
* $RCSfile: storage.c,v $
- * $Revision: 1.5 $
- * $Date: 1999/03/09 14:51:13 $
+ * $Revision: 1.75 $
+ * $Date: 2000/05/09 17:38:19 $
* ------------------------------------------------------------------------*/
-#include "prelude.h"
+#include "hugsbasictypes.h"
#include "storage.h"
-#include "backend.h"
#include "connect.h"
#include "errors.h"
+#include "object.h"
#include <setjmp.h>
+#include "Stg.h"
/*#define DEBUG_SHOWUSE*/
* local function prototypes:
* ------------------------------------------------------------------------*/
-static Int local hash Args((String));
-static Int local saveText Args((Text));
-#if !IGNORE_MODULES
-static Module local findQualifier Args((Text));
-#endif
-static Void local hashTycon Args((Tycon));
-static List local insertTycon Args((Tycon,List));
-static Void local hashName Args((Name));
-static List local insertName Args((Name,List));
-static Void local patternError Args((String));
-static Bool local stringMatch Args((String,String));
-static Bool local typeInvolves Args((Type,Type));
-static Cell local markCell Args((Cell));
-static Void local markSnd Args((Cell));
-static Cell local lowLevelLastIn Args((Cell));
-static Cell local lowLevelLastOut Args((Cell));
-/* from STG */
- Module local moduleOfScript Args((Script));
- Script local scriptThisFile Args((Text));
-/* from 98 */
-#if IO_HANDLES
-static Void local freeHandle Args((Int));
-#endif
-#if GC_STABLEPTRS
-static Void local resetStablePtrs Args((Void));
-#endif
-/* end */
+static Int local hash ( String );
+static Int local saveText ( Text );
+static Module local findQualifier ( Text );
+static Void local hashTycon ( Tycon );
+static List local insertTycon ( Tycon,List );
+static Void local hashName ( Name );
+static List local insertName ( Name,List );
+static Void local patternError ( String );
+static Bool local stringMatch ( String,String );
+static Bool local typeInvolves ( Type,Type );
+static Cell local markCell ( Cell );
+static Void local markSnd ( Cell );
+static Cell local lowLevelLastIn ( Cell );
+static Cell local lowLevelLastOut ( Cell );
+
/* --------------------------------------------------------------------------
* Text storage:
#define TEXTHSZ 512 /* Size of Text hash table */
#define NOTEXT ((Text)(~0)) /* Empty bucket in Text hash table */
static Text textHw; /* Next unused position */
-static Text savedText = NUM_TEXT; /* Start of saved portion of text */
+static Text savedText = TEXT_SIZE; /* Start of saved portion of text */
static Text nextNewText; /* Next new text value */
static Text nextNewDText; /* Next new dict text value */
-static char DEFTABLE(text,NUM_TEXT);/* Storage of character strings */
+static char text[TEXT_SIZE]; /* Storage of character strings */
static Text textHash[TEXTHSZ][NUM_TEXTH]; /* Hash table storage */
String textToStr(t) /* find string corresp to given Text*/
Text t; {
static char newVar[16];
- if (0<=t && t<NUM_TEXT) /* standard char string */
- return text + t;
- if (t<0)
- sprintf(newVar,"d%d",-t); /* dictionary variable */
- else
- sprintf(newVar,"v%d",t-NUM_TEXT); /* normal variable */
- return newVar;
+ if (isText(t)) /* standard char string */
+ return text + t - TEXT_BASE_ADDR;
+ if (isInventedDictVar(t)) {
+ sprintf(newVar,"d%d",
+ t-INDVAR_BASE_ADDR); /* dictionary variable */
+ return newVar;
+ }
+ if (isInventedVar(t)) {
+ sprintf(newVar,"v%d",
+ t-INVAR_BASE_ADDR); /* normal variable */
+ return newVar;
+ }
+ internal("textToStr");
}
String identToStr(v) /*find string corresp to given ident or qualified name*/
if (!isPair(v)) {
internal("identToStr");
}
- switch (fst(v)) {
+ switch (whatIs(v)) {
case VARIDCELL :
case VAROPCELL :
case CONIDCELL :
- case CONOPCELL : return text+textOf(v);
-
- case QUALIDENT : { Text pos = textHw;
- Text t = qmodOf(v);
- while (pos+1 < savedText && text[t]!=0) {
- text[pos++] = text[t++];
+ case CONOPCELL : return textToStr(textOf(v));
+
+ case QUALIDENT : { String qmod = textToStr(qmodOf(v));
+ String qtext = textToStr(qtextOf(v));
+ Text pos = textHw;
+
+ while (pos+1 < savedText && *qmod!=0) {
+ text[pos++] = *qmod++;
}
if (pos+1 < savedText) {
text[pos++] = '.';
}
- t = qtextOf(v);
- while (pos+1 < savedText && text[t]!=0) {
- text[pos++] = text[t++];
+ while (pos+1 < savedText && *qtext!=0) {
+ text[pos++] = *qtext++;
}
text[pos] = '\0';
return text+textHw;
}
Text inventText() { /* return new unused variable name */
- return nextNewText++;
+ if (nextNewText >= INVAR_BASE_ADDR+INVAR_MAX_AVAIL)
+ internal("inventText: too many invented variables");
+ return nextNewText++;
}
Text inventDictText() { /* return new unused dictvar name */
- return nextNewDText--;
+ if (nextNewDText >= INDVAR_BASE_ADDR+INDVAR_MAX_AVAIL)
+ internal("inventDictText: too many invented variables");
+ return nextNewDText++;
}
Bool inventedText(t) /* Signal TRUE if text has been */
Text t; { /* generated internally */
- return (t<0 || t>=NUM_TEXT);
+ return isInventedVar(t) || isInventedDictVar(t);
}
+#define MAX_FIXLIT 100
+Text fixLitText(t) /* fix literal text that might include \ */
+Text t; {
+ String s = textToStr(t);
+ char p[MAX_FIXLIT];
+ Int i;
+ for(i = 0;i < MAX_FIXLIT-2 && *s;s++) {
+ p[i++] = *s;
+ if (*s == '\\') {
+ p[i++] = '\\';
+ }
+ }
+ if (i < MAX_FIXLIT-2) {
+ p[i] = 0;
+ } else {
+ ERRMSG(0) "storage space exhausted for internal literal string"
+ EEND;
+ }
+ return (findText(p));
+}
+#undef MAX_FIXLIT
+
static Int local hash(s) /* Simple hash function on strings */
String s; {
int v, j = 3;
int hashno = 0;
Text textPos = textHash[h][hashno];
-#define TryMatch { Text originalTextPos = textPos; \
+# define TryMatch { Text originalTextPos = textPos; \
String t; \
for (t=s; *t==text[textPos]; textPos++,t++) \
if (*t=='\0') \
- return originalTextPos; \
+ return originalTextPos+TEXT_BASE_ADDR; \
}
-#define Skip while (text[textPos++]) ;
+# define Skip while (text[textPos++]) ;
while (textPos!=NOTEXT) {
TryMatch
textHash[h][hashno+1] = NOTEXT;
}
- return textPos;
+ return textPos+TEXT_BASE_ADDR;
}
static Int local saveText(t) /* Save text value in buffer */
Text t; { /* at top of text table */
String s = textToStr(t);
Int l = strlen(s);
-
if (textHw + l + 1 > savedText) {
ERRMSG(0) "Character string storage space exhausted"
EEND;
}
+static int fromHexDigit ( char c )
+{
+ switch (c) {
+ case '0': case '1': case '2': case '3': case '4':
+ case '5': case '6': case '7': case '8': case '9':
+ return c - '0';
+ case 'a': case 'A': return 10;
+ case 'b': case 'B': return 11;
+ case 'c': case 'C': return 12;
+ case 'd': case 'D': return 13;
+ case 'e': case 'E': return 14;
+ case 'f': case 'F': return 15;
+ default: return -1;
+ }
+}
+
+
+/* returns findText (unZencode s) */
+Text unZcodeThenFindText ( String s )
+{
+ unsigned char* p;
+ Int n, nn, i;
+ Text t;
+
+ assert(s);
+ nn = 100 + 10 * strlen(s);
+ p = malloc ( nn );
+ if (!p) internal ("unZcodeThenFindText: malloc failed");
+ n = 0;
+
+ while (1) {
+ if (!(*s)) break;
+ if (n > nn-90) internal ("unZcodeThenFindText: result is too big");
+ if (*s != 'z' && *s != 'Z') {
+ p[n] = *s; n++; s++;
+ continue;
+ }
+ s++;
+ if (!(*s)) goto parse_error;
+ switch (*s++) {
+ case 'Z': p[n++] = 'Z'; break;
+ case 'C': p[n++] = ':'; break;
+ case 'L': p[n++] = '('; break;
+ case 'R': p[n++] = ')'; break;
+ case 'M': p[n++] = '['; break;
+ case 'N': p[n++] = ']'; break;
+ case 'z': p[n++] = 'z'; break;
+ case 'a': p[n++] = '&'; break;
+ case 'b': p[n++] = '|'; break;
+ case 'd': p[n++] = '$'; break;
+ case 'e': p[n++] = '='; break;
+ case 'g': p[n++] = '>'; break;
+ case 'h': p[n++] = '#'; break;
+ case 'i': p[n++] = '.'; break;
+ case 'l': p[n++] = '<'; break;
+ case 'm': p[n++] = '-'; break;
+ case 'n': p[n++] = '!'; break;
+ case 'p': p[n++] = '+'; break;
+ case 'q': p[n++] = '\\'; break;
+ case 'r': p[n++] = '\''; break;
+ case 's': p[n++] = '/'; break;
+ case 't': p[n++] = '*'; break;
+ case 'u': p[n++] = '^'; break;
+ case 'v': p[n++] = '%'; break;
+ case 'x':
+ if (!s[0] || !s[1]) goto parse_error;
+ if (fromHexDigit(s[0]) < 0 || fromHexDigit(s[1]) < 0) goto parse_error;
+ p[n++] = 16 * fromHexDigit(s[0]) + fromHexDigit(s[1]);
+ p += 2; s += 2;
+ break;
+ case '0': case '1': case '2': case '3': case '4':
+ case '5': case '6': case '7': case '8': case '9':
+ i = 0;
+ s--;
+ while (*s && isdigit((int)(*s))) {
+ i = 10 * i + (*s - '0');
+ s++;
+ }
+ if (*s != 'T') goto parse_error;
+ s++;
+ p[n++] = '(';
+ while (i > 0) { p[n++] = ','; i--; };
+ p[n++] = ')';
+ break;
+ default:
+ goto parse_error;
+ }
+ }
+ p[n] = 0;
+ t = findText(p);
+ free(p);
+ return t;
+
+ parse_error:
+ free(p);
+ fprintf ( stderr, "\nstring = `%s'\n", s );
+ internal ( "unZcodeThenFindText: parse error on above string");
+ return NIL; /*notreached*/
+}
+
+
+Text enZcodeThenFindText ( String s )
+{
+ unsigned char* p;
+ Int n, nn;
+ Text t;
+ char toHex[16] = "0123456789ABCDEF";
+
+ assert(s);
+ nn = 100 + 10 * strlen(s);
+ p = malloc ( nn );
+ if (!p) internal ("enZcodeThenFindText: malloc failed");
+ n = 0;
+ while (1) {
+ if (!(*s)) break;
+ if (n > nn-90) internal ("enZcodeThenFindText: result is too big");
+ if (*s != 'z'
+ && *s != 'Z'
+ && (isalnum((int)(*s)) || *s == '_')) {
+ p[n] = *s; n++; s++;
+ continue;
+ }
+ if (*s == '(') {
+ int tup = 0;
+ char num[12];
+ s++;
+ while (*s && *s==',') { s++; tup++; };
+ if (*s != ')') internal("enZcodeThenFindText: invalid tuple type");
+ s++;
+ p[n++] = 'Z';
+ sprintf(num,"%d",tup);
+ p[n] = 0; strcat ( &(p[n]), num ); n += strlen(num);
+ p[n++] = 'T';
+ continue;
+ }
+ switch (*s++) {
+ case '(': p[n++] = 'Z'; p[n++] = 'L'; break;
+ case ')': p[n++] = 'Z'; p[n++] = 'R'; break;
+ case '[': p[n++] = 'Z'; p[n++] = 'M'; break;
+ case ']': p[n++] = 'Z'; p[n++] = 'N'; break;
+ case ':': p[n++] = 'Z'; p[n++] = 'C'; break;
+ case 'Z': p[n++] = 'Z'; p[n++] = 'Z'; break;
+ case 'z': p[n++] = 'z'; p[n++] = 'z'; break;
+ case '&': p[n++] = 'z'; p[n++] = 'a'; break;
+ case '|': p[n++] = 'z'; p[n++] = 'b'; break;
+ case '$': p[n++] = 'z'; p[n++] = 'd'; break;
+ case '=': p[n++] = 'z'; p[n++] = 'e'; break;
+ case '>': p[n++] = 'z'; p[n++] = 'g'; break;
+ case '#': p[n++] = 'z'; p[n++] = 'h'; break;
+ case '.': p[n++] = 'z'; p[n++] = 'i'; break;
+ case '<': p[n++] = 'z'; p[n++] = 'l'; break;
+ case '-': p[n++] = 'z'; p[n++] = 'm'; break;
+ case '!': p[n++] = 'z'; p[n++] = 'n'; break;
+ case '+': p[n++] = 'z'; p[n++] = 'p'; break;
+ case '\'': p[n++] = 'z'; p[n++] = 'q'; break;
+ case '\\': p[n++] = 'z'; p[n++] = 'r'; break;
+ case '/': p[n++] = 'z'; p[n++] = 's'; break;
+ case '*': p[n++] = 'z'; p[n++] = 't'; break;
+ case '^': p[n++] = 'z'; p[n++] = 'u'; break;
+ case '%': p[n++] = 'z'; p[n++] = 'v'; break;
+ default: s--; p[n++] = 'z'; p[n++] = 'x';
+ p[n++] = toHex[(int)(*s)/16];
+ p[n++] = toHex[(int)(*s)%16];
+ s++; break;
+ }
+ }
+ p[n] = 0;
+ t = findText(p);
+ free(p);
+ return t;
+}
+
+
+Text textOf ( Cell c )
+{
+ Int wot = whatIs(c);
+ Bool ok =
+ (wot==VARIDCELL
+ || wot==CONIDCELL
+ || wot==VAROPCELL
+ || wot==CONOPCELL
+ || wot==STRCELL
+ || wot==DICTVAR
+ || wot==IPCELL
+ || wot==IPVAR
+ );
+ if (!ok) {
+ fprintf(stderr, "\ntextOf: bad tag %d\n",wot );
+ internal("textOf: bad tag");
+ }
+ return snd(c);
+}
+
/* --------------------------------------------------------------------------
* Ext storage:
*
}
#endif
+
+/* --------------------------------------------------------------------------
+ * Expandable symbol tables. A template, which is instantiated for the name,
+ * tycon, class, instance and module tables. Also, potentially, TREX Exts.
+ * ------------------------------------------------------------------------*/
+
+#ifdef DEBUG_STORAGE_EXTRA
+static Bool debugStorageExtra = TRUE;
+#else
+static Bool debugStorageExtra = FALSE;
+#endif
+
+
+#define EXPANDABLE_SYMBOL_TABLE(type_name,struct_name, \
+ proc_name,free_proc_name, \
+ free_list,tab_name,tab_size,err_msg, \
+ TAB_INIT_SIZE,TAB_MAX_SIZE, \
+ TAB_BASE_ADDR) \
+ \
+ struct struct_name* tab_name = NULL; \
+ int tab_size = 0; \
+ static type_name free_list = TAB_BASE_ADDR-1; \
+ \
+ void free_proc_name ( type_name n ) \
+ { \
+ assert(TAB_BASE_ADDR <= n); \
+ assert(n < TAB_BASE_ADDR+tab_size); \
+ assert(tab_name[n-TAB_BASE_ADDR].inUse); \
+ tab_name[n-TAB_BASE_ADDR].inUse = FALSE; \
+ if (!debugStorageExtra) { \
+ tab_name[n-TAB_BASE_ADDR].nextFree = free_list; \
+ free_list = n; \
+ } \
+ } \
+ \
+ type_name proc_name ( void ) \
+ { \
+ Int i; \
+ Int newSz; \
+ struct struct_name* newTab; \
+ struct struct_name* temp; \
+ try_again: \
+ if (free_list != TAB_BASE_ADDR-1) { \
+ type_name t = free_list; \
+ free_list = tab_name[free_list-TAB_BASE_ADDR].nextFree; \
+ assert (!(tab_name[t-TAB_BASE_ADDR].inUse)); \
+ tab_name[t-TAB_BASE_ADDR].inUse = TRUE; \
+ return t; \
+ } \
+ \
+ newSz = (tab_size == 0 ? TAB_INIT_SIZE : 2 * tab_size); \
+ if (newSz > TAB_MAX_SIZE) goto cant_allocate; \
+ newTab = malloc(newSz * sizeof(struct struct_name)); \
+ if (!newTab) goto cant_allocate; \
+ for (i = 0; i < tab_size; i++) \
+ newTab[i] = tab_name[i]; \
+ for (i = tab_size; i < newSz; i++) { \
+ newTab[i].inUse = FALSE; \
+ newTab[i].nextFree = i-1+TAB_BASE_ADDR; \
+ } \
+ if (0 && debugStorageExtra) \
+ fprintf(stderr, "Expanding " #type_name \
+ "table to size %d\n", newSz ); \
+ newTab[tab_size].nextFree = TAB_BASE_ADDR-1; \
+ free_list = newSz-1+TAB_BASE_ADDR; \
+ tab_size = newSz; \
+ temp = tab_name; \
+ tab_name = newTab; \
+ if (temp) free(temp); \
+ goto try_again; \
+ \
+ cant_allocate: \
+ ERRMSG(0) err_msg \
+ EEND; \
+ } \
+
+
+
+EXPANDABLE_SYMBOL_TABLE(Name,strName,allocNewName,freeName,
+ nameFL,tabName,tabNameSz,
+ "Name storage space exhausted",
+ NAME_INIT_SIZE,NAME_MAX_SIZE,NAME_BASE_ADDR)
+
+
+EXPANDABLE_SYMBOL_TABLE(Tycon,strTycon,allocNewTycon,freeTycon,
+ tyconFL,tabTycon,tabTyconSz,
+ "Type constructor storage space exhausted",
+ TYCON_INIT_SIZE,TYCON_MAX_SIZE,TYCON_BASE_ADDR)
+
+
+EXPANDABLE_SYMBOL_TABLE(Class,strClass,allocNewClass,freeClass,
+ classFL,tabClass,tabClassSz,
+ "Class storage space exhausted",
+ CCLASS_INIT_SIZE,CCLASS_MAX_SIZE,CCLASS_BASE_ADDR)
+
+
+EXPANDABLE_SYMBOL_TABLE(Inst,strInst,allocNewInst,freeInst,
+ instFL,tabInst,tabInstSz,
+ "Instance storage space exhausted",
+ INST_INIT_SIZE,INST_MAX_SIZE,INST_BASE_ADDR)
+
+
+EXPANDABLE_SYMBOL_TABLE(Module,strModule,allocNewModule,freeModule,
+ moduleFL,tabModule,tabModuleSz,
+ "Module storage space exhausted",
+ MODULE_INIT_SIZE,MODULE_MAX_SIZE,MODULE_BASE_ADDR)
+
+#ifdef DEBUG_STORAGE
+struct strName* generate_name_ref ( Cell nm )
+{
+ assert(isName(nm));
+ nm -= NAME_BASE_ADDR;
+ assert(tabName[nm].inUse);
+ assert(isModule(tabName[nm].mod));
+ return & tabName[nm];
+}
+struct strTycon* generate_tycon_ref ( Cell tc )
+{
+ assert(isTycon(tc) || isTuple(tc));
+ tc -= TYCON_BASE_ADDR;
+ assert(tabTycon[tc].inUse);
+ assert(isModule(tabTycon[tc].mod));
+ return & tabTycon[tc];
+}
+struct strClass* generate_cclass_ref ( Cell cl )
+{
+ assert(isClass(cl));
+ cl -= CCLASS_BASE_ADDR;
+ assert(tabClass[cl].inUse);
+ assert(isModule(tabClass[cl].mod));
+ return & tabClass[cl];
+}
+struct strInst* generate_inst_ref ( Cell in )
+{
+ assert(isInst(in));
+ in -= INST_BASE_ADDR;
+ assert(tabInst[in].inUse);
+ assert(isModule(tabInst[in].mod));
+ return & tabInst[in];
+}
+struct strModule* generate_module_ref ( Cell mo )
+{
+ assert(isModule(mo));
+ mo -= MODULE_BASE_ADDR;
+ assert(tabModule[mo].inUse);
+ return & tabModule[mo];
+}
+#endif
+
+
/* --------------------------------------------------------------------------
* Tycon storage:
*
* ------------------------------------------------------------------------*/
#define TYCONHSZ 256 /* Size of Tycon hash table*/
-#define tHash(x) ((x)%TYCONHSZ) /* Tycon hash function */
-static Tycon tyconHw; /* next unused Tycon */
-static Tycon DEFTABLE(tyconHash,TYCONHSZ); /* Hash table storage */
-struct strTycon DEFTABLE(tabTycon,NUM_TYCON); /* Tycon storage */
+static Tycon tyconHash[TYCONHSZ]; /* Hash table storage */
-Tycon newTycon(t) /* add new tycon to tycon table */
-Text t; {
- Int h = tHash(t);
- if (tyconHw-TYCMIN >= NUM_TYCON) {
- ERRMSG(0) "Type constructor storage space exhausted"
- EEND;
- }
- tycon(tyconHw).text = t; /* clear new tycon record */
- tycon(tyconHw).kind = NIL;
- tycon(tyconHw).defn = NIL;
- tycon(tyconHw).what = NIL;
- tycon(tyconHw).conToTag = NIL;
- tycon(tyconHw).tagToCon = NIL;
-#if !IGNORE_MODULES
- tycon(tyconHw).mod = currentModule;
- module(currentModule).tycons = cons(tyconHw,module(currentModule).tycons);
-#endif
- tycon(tyconHw).nextTyconHash = tyconHash[h];
- tyconHash[h] = tyconHw;
+static int tHash(Text x)
+{
+ int r;
+ assert(isText(x) || inventedText(x));
+ x -= TEXT_BASE_ADDR;
+ if (x < 0) x = -x;
+ r= x%TYCONHSZ;
+ assert(r>=0);
+ assert(r<TYCONHSZ);
+ return r;
+}
- return tyconHw++;
+static int RC_T ( int x )
+{
+ assert (x >= 0 && x < TYCONHSZ);
+ return x;
+}
+
+Tycon newTycon ( Text t ) /* add new tycon to tycon table */
+{
+ Int h = tHash(t);
+ Tycon tc = allocNewTycon();
+ tabTycon
+ [tc-TYCON_BASE_ADDR].tuple = -1;
+ tabTycon
+ [tc-TYCON_BASE_ADDR].mod = currentModule;
+ tycon(tc).text = t; /* clear new tycon record */
+ tycon(tc).kind = NIL;
+ tycon(tc).defn = NIL;
+ tycon(tc).what = NIL;
+ tycon(tc).conToTag = NIL;
+ tycon(tc).tagToCon = NIL;
+ tycon(tc).itbl = NULL;
+ tycon(tc).arity = 0;
+ tycon(tc).closure = NIL;
+ module(currentModule).tycons = cons(tc,module(currentModule).tycons);
+ tycon(tc).nextTyconHash = tyconHash[RC_T(h)];
+ tyconHash[RC_T(h)] = tc;
+ return tc;
}
Tycon findTycon(t) /* locate Tycon in tycon table */
Text t; {
- Tycon tc = tyconHash[tHash(t)];
-
+ Tycon tc = tyconHash[RC_T(tHash(t))];
+ assert(isTycon(tc) || isTuple(tc) || isNull(tc));
while (nonNull(tc) && tycon(tc).text!=t)
tc = tycon(tc).nextTyconHash;
return tc;
Tycon addTycon(tc) /* Insert Tycon in tycon table - if no clash is caused */
Tycon tc; {
- Tycon oldtc = findTycon(tycon(tc).text);
+ Tycon oldtc;
+ assert(isTycon(tc) || isTuple(tc));
+ oldtc = findTycon(tycon(tc).text);
if (isNull(oldtc)) {
hashTycon(tc);
-#if !IGNORE_MODULES
module(currentModule).tycons=cons(tc,module(currentModule).tycons);
-#endif
return tc;
} else
return oldtc;
static Void local hashTycon(tc) /* Insert Tycon into hash table */
Tycon tc; {
- Text t = tycon(tc).text;
- Int h = tHash(t);
- tycon(tc).nextTyconHash = tyconHash[h];
- tyconHash[h] = tc;
+ Text t;
+ Int h;
+ assert(isTycon(tc) || isTuple(tc));
+ {int i; for (i = 0; i < TYCONHSZ; i++)
+ assert (tyconHash[i] == 0
+ || isTycon(tyconHash[i])
+ || isTuple(tyconHash[i]));
+ }
+ t = tycon(tc).text;
+ h = tHash(t);
+ tycon(tc).nextTyconHash = tyconHash[RC_T(h)];
+ tyconHash[RC_T(h)] = tc;
}
Tycon findQualTycon(id) /*locate (possibly qualified) Tycon in tycon table */
case CONOPCELL :
return findTycon(textOf(id));
case QUALIDENT : {
-#if IGNORE_MODULES
- return findTycon(qtextOf(id));
-#else /* !IGNORE_MODULES */
Text t = qtextOf(id);
Module m = findQualifier(qmodOf(id));
List es = NIL;
return fst(e);
}
return NIL;
-#endif /* !IGNORE_MODULES */
}
default : internal("findQualTycon2");
}
- return 0; /* NOTREACHED */
+ return NIL; /* NOTREACHED */
}
Tycon addPrimTycon(t,kind,ar,what,defn) /* add new primitive type constr */
String pat; /* to list of Tycons ts */
List ts; { /* Null pattern matches every tycon*/
Tycon tc; /* (Tycons with NIL kind excluded) */
- for (tc=TYCMIN; tc<tyconHw; ++tc)
- if (!pat || stringMatch(pat,textToStr(tycon(tc).text)))
- if (nonNull(tycon(tc).kind))
- ts = insertTycon(tc,ts);
+ for (tc = TYCON_BASE_ADDR;
+ tc < TYCON_BASE_ADDR+tabTyconSz; ++tc)
+ if (tabTycon[tc-TYCON_BASE_ADDR].inUse)
+ if (!pat || stringMatch(pat,textToStr(tycon(tc).text)))
+ if (nonNull(tycon(tc).kind))
+ ts = insertTycon(tc,ts);
return ts;
}
+Text ghcTupleText_n ( Int n )
+{
+ Int i;
+ Int x = 0;
+ char buf[104];
+ if (n < 0 || n >= 100) internal("ghcTupleText_n");
+ if (n == 1) internal("ghcTupleText_n==1");
+ buf[x++] = '(';
+ for (i = 1; i <= n-1; i++) buf[x++] = ',';
+ buf[x++] = ')';
+ buf[x++] = 0;
+ return findText(buf);
+}
+
+Text ghcTupleText(tup)
+Tycon tup; {
+ if (!isTuple(tup)) {
+ assert(isTuple(tup));
+ }
+ return ghcTupleText_n ( tupleOf(tup) );
+}
+
+
+Tycon mkTuple ( Int n )
+{
+ Int i;
+ if (n >= NUM_TUPLES)
+ internal("mkTuple: request for tuple of unsupported size");
+ for (i = TYCON_BASE_ADDR;
+ i < TYCON_BASE_ADDR+tabTyconSz; i++)
+ if (tabTycon[i-TYCON_BASE_ADDR].inUse)
+ if (tycon(i).tuple == n) return i;
+ internal("mkTuple: request for non-existent tuple");
+}
+
+
/* --------------------------------------------------------------------------
* Name storage:
*
* ------------------------------------------------------------------------*/
#define NAMEHSZ 256 /* Size of Name hash table */
-#define nHash(x) ((x)%NAMEHSZ) /* hash fn :: Text->Int */
- Name nameHw; /* next unused name */
-static Name DEFTABLE(nameHash,NAMEHSZ); /* Hash table storage */
-struct strName DEFTABLE(tabName,NUM_NAME); /* Name table storage */
-
-Name newName(t,parent) /* Add new name to name table */
-Text t;
-Cell parent; {
+static Name nameHash[NAMEHSZ]; /* Hash table storage */
+
+static int nHash(Text x)
+{
+ assert(isText(x) || inventedText(x));
+ x -= TEXT_BASE_ADDR;
+ if (x < 0) x = -x;
+ return x%NAMEHSZ;
+}
+
+int RC_N ( int x )
+{
+ assert (x >= 0 && x < NAMEHSZ);
+ return x;
+}
+
+void hashSanity ( void )
+{
+ Int i, j;
+ for (i = 0; i < TYCONHSZ; i++) {
+ j = tyconHash[i];
+ while (nonNull(j)) {
+ assert(isTycon(j) || isTuple(j));
+ j = tycon(j).nextTyconHash;
+ }
+ }
+ for (i = 0; i < NAMEHSZ; i++) {
+ j = nameHash[i];
+ while (nonNull(j)) {
+ assert(isName(j));
+ j = name(j).nextNameHash;
+ }
+ }
+}
+
+Name newName ( Text t, Cell parent ) /* Add new name to name table */
+{
Int h = nHash(t);
- if (nameHw-NAMEMIN >= NUM_NAME) {
- ERRMSG(0) "Name storage space exhausted"
- EEND;
- }
- name(nameHw).text = t; /* clear new name record */
- name(nameHw).line = 0;
- name(nameHw).syntax = NO_SYNTAX;
- name(nameHw).parent = parent;
- name(nameHw).arity = 0;
- name(nameHw).number = EXECNAME;
- name(nameHw).defn = NIL;
- name(nameHw).stgVar = NIL;
- name(nameHw).type = NIL;
- name(nameHw).primop = 0;
- name(nameHw).mod = currentModule;
- module(currentModule).names=cons(nameHw,module(currentModule).names);
- name(nameHw).nextNameHash = nameHash[h];
- nameHash[h] = nameHw;
-assert ( name(nameHw).nextNameHash != nameHash[h] );
- return nameHw++;
+ Name nm = allocNewName();
+ tabName
+ [nm-NAME_BASE_ADDR].mod = currentModule;
+ name(nm).text = t; /* clear new name record */
+ name(nm).line = 0;
+ name(nm).syntax = NO_SYNTAX;
+ name(nm).parent = parent;
+ name(nm).arity = 0;
+ name(nm).number = EXECNAME;
+ name(nm).defn = NIL;
+ name(nm).hasStrict = FALSE;
+ name(nm).callconv = NIL;
+ name(nm).type = NIL;
+ name(nm).primop = NULL;
+ name(nm).itbl = NULL;
+ name(nm).closure = NIL;
+ module(currentModule).names = cons(nm,module(currentModule).names);
+ name(nm).nextNameHash = nameHash[RC_N(h)];
+ nameHash[RC_N(h)] = nm;
+ return nm;
}
Name findName(t) /* Locate name in name table */
Text t; {
- Name n = nameHash[nHash(t)];
-
+ Name n = nameHash[RC_N(nHash(t))];
+ assert(isText(t) || isInventedVar(t) || isInventedDictVar(t));
+ assert(isName(n) || isNull(n));
while (nonNull(n) && name(n).text!=t)
n = name(n).nextNameHash;
return n;
Name addName(nm) /* Insert Name in name table - if */
Name nm; { /* no clash is caused */
- Name oldnm = findName(name(nm).text);
+ Name oldnm;
+ assert(isName(nm));
+ oldnm = findName(name(nm).text);
if (isNull(oldnm)) {
hashName(nm);
-#if !IGNORE_MODULES
module(currentModule).names=cons(nm,module(currentModule).names);
-#endif
return nm;
} else
return oldnm;
static Void local hashName(nm) /* Insert Name into hash table */
Name nm; {
- Text t = name(nm).text;
- Int h = nHash(t);
- name(nm).nextNameHash = nameHash[h];
- nameHash[h] = nm;
+ Text t;
+ Int h;
+ assert(isName(nm));
+ t = name(nm).text;
+ h = nHash(t);
+ name(nm).nextNameHash = nameHash[RC_N(h)];
+ nameHash[RC_N(h)] = nm;
}
Name findQualName(id) /* Locate (possibly qualified) name*/
case CONOPCELL :
return findName(textOf(id));
case QUALIDENT : {
-#if IGNORE_MODULES
- return findName(qtextOf(id));
-#else /* !IGNORE_MODULES */
Text t = qtextOf(id);
Module m = findQualifier(qmodOf(id));
List es = NIL;
}
}
return NIL;
-#endif /* !IGNORE_MODULES */
}
default : internal("findQualName2");
}
return 0; /* NOTREACHED */
}
+
+void* /* StgClosure* */ getHugs_BCO_cptr_for ( char* s )
+{
+ Text t = findText(s);
+ Name n = NIL;
+ for (n = NAME_BASE_ADDR;
+ n < NAME_BASE_ADDR+tabNameSz; n++)
+ if (tabName[n-NAME_BASE_ADDR].inUse && name(n).text == t)
+ break;
+ if (n == NAME_BASE_ADDR+tabNameSz) {
+ fprintf ( stderr, "can't find `%s' in ...\n", s );
+ internal("getHugs_BCO_cptr_for(1)");
+ }
+ if (!isCPtr(name(n).closure))
+ internal("getHugs_BCO_cptr_for(2)");
+ return cptrOf(name(n).closure);
+}
+
/* --------------------------------------------------------------------------
* Primitive functions:
* ------------------------------------------------------------------------*/
+Module findFakeModule ( Text t )
+{
+ Module m = findModule(t);
+ if (nonNull(m)) {
+ if (!module(m).fake) internal("findFakeModule");
+ } else {
+ m = newModule(t);
+ module(m).fake = TRUE;
+ }
+ return m;
+}
+
+
+Name addWiredInBoxingTycon
+ ( String modNm, String typeNm, String constrNm,
+ Int rep, Kind kind )
+{
+ Name n;
+ Tycon t;
+ Text modT = findText(modNm);
+ Text typeT = findText(typeNm);
+ Text conT = findText(constrNm);
+ Module m = findFakeModule(modT);
+ setCurrModule(m);
+
+ n = newName(conT,NIL);
+ name(n).arity = 1;
+ name(n).number = cfunNo(0);
+ name(n).type = NIL;
+ name(n).primop = (void*)rep;
+
+ t = newTycon(typeT);
+ tycon(t).what = DATATYPE;
+ tycon(t).kind = kind;
+ return n;
+}
+
+
+Tycon addTupleTycon ( Int n )
+{
+ Int i;
+ Kind k;
+ Tycon t;
+ Module m;
+ Name nm;
+
+ for (i = TYCON_BASE_ADDR;
+ i < TYCON_BASE_ADDR+tabTyconSz; i++)
+ if (tabTycon[i-TYCON_BASE_ADDR].inUse)
+ if (tycon(i).tuple == n) return i;
+
+ if (combined)
+ m = findFakeModule(findText(n==0 ? "PrelBase" : "PrelTup")); else
+ m = findModule(findText("PrelPrim"));
+
+ setCurrModule(m);
+ k = STAR;
+ for (i = 0; i < n; i++) k = ap(STAR,k);
+ t = newTycon(ghcTupleText_n(n));
+ tycon(t).kind = k;
+ tycon(t).tuple = n;
+ tycon(t).what = DATATYPE;
+
+ if (n == 0) {
+ /* maybe we want to do this for all n ? */
+ nm = newName(ghcTupleText_n(n), t);
+ name(nm).type = t; /* ummm ... for n > 0 */
+ }
+
+ return t;
+}
+
+
+Tycon addWiredInEnumTycon ( String modNm, String typeNm,
+ List /*of Text*/ constrs )
+{
+ Int i;
+ Tycon t;
+ Text modT = findText(modNm);
+ Text typeT = findText(typeNm);
+ Module m = findFakeModule(modT);
+ setCurrModule(m);
+
+ t = newTycon(typeT);
+ tycon(t).kind = STAR;
+ tycon(t).what = DATATYPE;
+
+ constrs = reverse(constrs);
+ i = length(constrs);
+ for (; nonNull(constrs); constrs=tl(constrs),i--) {
+ Text conT = hd(constrs);
+ Name con = newName(conT,t);
+ name(con).number = cfunNo(i);
+ name(con).type = t;
+ name(con).parent = t;
+ tycon(t).defn = cons(con, tycon(t).defn);
+ }
+ return t;
+}
+
+
Name addPrimCfunREP(t,arity,no,rep) /* add primitive constructor func */
Text t; /* sets rep, not type */
Int arity;
String pat; /* to list of names ns */
List ns; { /* Null pattern matches every name */
Name nm; /* (Names with NIL type, or hidden */
+ /* or invented names are excluded) */
#if 1
- for (nm=NAMEMIN; nm<nameHw; ++nm) /* or invented names are excluded) */
- if (!inventedText(name(nm).text) && nonNull(name(nm).type)) {
- String str = textToStr(name(nm).text);
- if (str[0]!='_' && (!pat || stringMatch(pat,str)))
- ns = insertName(nm,ns);
- }
+ for (nm = NAME_BASE_ADDR;
+ nm < NAME_BASE_ADDR+tabNameSz; ++nm)
+ if (tabName[nm-NAME_BASE_ADDR].inUse) {
+ if (!inventedText(name(nm).text) && nonNull(name(nm).type)) {
+ String str = textToStr(name(nm).text);
+ if (str[0]!='_' && (!pat || stringMatch(pat,str)))
+ ns = insertName(nm,ns);
+ }
+ }
return ns;
#else
List mns = module(currentModule).names;
* Storage of type classes, instances etc...:
* ------------------------------------------------------------------------*/
-static Class classHw; /* next unused class */
static List classes; /* list of classes in current scope */
-static Inst instHw; /* next unused instance record */
-struct strClass DEFTABLE(tabClass,NUM_CLASSES); /* table of class records */
-struct strInst far *tabInst; /* (pointer to) table of instances */
-
-Class newClass(t) /* add new class to class table */
-Text t; {
- if (classHw-CLASSMIN >= NUM_CLASSES) {
- ERRMSG(0) "Class storage space exhausted"
- EEND;
- }
- cclass(classHw).text = t;
- cclass(classHw).arity = 0;
- cclass(classHw).kinds = NIL;
- cclass(classHw).head = NIL;
- cclass(classHw).dcon = NIL;
- cclass(classHw).supers = NIL;
- cclass(classHw).dsels = NIL;
- cclass(classHw).members = NIL;
- cclass(classHw).dbuild = NIL;
- cclass(classHw).defaults = NIL;
- cclass(classHw).instances = NIL;
- classes=cons(classHw,classes);
-#if !IGNORE_MODULES
- cclass(classHw).mod = currentModule;
- module(currentModule).classes=cons(classHw,module(currentModule).classes);
-#endif
- return classHw++;
+Class newClass ( Text t ) /* add new class to class table */
+{
+ Class cl = allocNewClass();
+ tabClass
+ [cl-CCLASS_BASE_ADDR].mod = currentModule;
+ cclass(cl).text = t;
+ cclass(cl).arity = 0;
+ cclass(cl).kinds = NIL;
+ cclass(cl).head = NIL;
+ cclass(cl).fds = NIL;
+ cclass(cl).xfds = NIL;
+ cclass(cl).dcon = NIL;
+ cclass(cl).supers = NIL;
+ cclass(cl).dsels = NIL;
+ cclass(cl).members = NIL;
+ cclass(cl).defaults = NIL;
+ cclass(cl).instances = NIL;
+ classes = cons(cl,classes);
+ module(currentModule).classes
+ = cons(cl,module(currentModule).classes);
+ return cl;
}
-Class classMax() { /* Return max Class in use ... */
- return classHw; /* This is a bit ugly, but it's not*/
-} /* worth a lot of effort right now */
-
Class findClass(t) /* look for named class in table */
Text t; {
Class cl;
Class addClass(c) /* Insert Class in class list */
Class c; { /* - if no clash caused */
- Class oldc = findClass(cclass(c).text);
+ Class oldc;
+ assert(whatIs(c)==CLASS);
+ oldc = findClass(cclass(c).text);
if (isNull(oldc)) {
classes=cons(c,classes);
-#if !IGNORE_MODULES
module(currentModule).classes=cons(c,module(currentModule).classes);
-#endif
return c;
}
else
if (!isQualIdent(c)) {
return findClass(textOf(c));
} else {
-#if IGNORE_MODULES
- return findClass(qtextOf(c));
-#else /* !IGNORE_MODULES */
Text t = qtextOf(c);
Module m = findQualifier(qmodOf(c));
List es = NIL;
if (isPair(e) && isClass(fst(e)) && cclass(fst(e)).text==t)
return fst(e);
}
-#endif
}
return NIL;
}
Inst newInst() { /* Add new instance to table */
- if (instHw-INSTMIN >= NUM_INSTS) {
- ERRMSG(0) "Instance storage space exhausted"
- EEND;
- }
- inst(instHw).kinds = NIL;
- inst(instHw).head = NIL;
- inst(instHw).specifics = NIL;
- inst(instHw).implements = NIL;
- inst(instHw).builder = NIL;
-
- return instHw++;
+ Inst in = allocNewInst();
+ tabInst
+ [in-INST_BASE_ADDR].mod = currentModule;
+ inst(in).kinds = NIL;
+ inst(in).head = NIL;
+ inst(in).specifics = NIL;
+ inst(in).numSpecifics = 0;
+ inst(in).implements = NIL;
+ inst(in).builder = NIL;
+ return in;
}
#ifdef DEBUG_DICTS
-extern Void printInst Args((Inst));
+extern Void printInst ( Inst));
Void printInst(in)
Inst in; {
Inst findFirstInst(tc) /* look for 1st instance involving */
Tycon tc; { /* the type constructor tc */
- return findNextInst(tc,INSTMIN-1);
+ return findNextInst(tc,INST_BASE_ADDR-1);
}
Inst findNextInst(tc,in) /* look for next instance involving*/
Tycon tc; /* the type constructor tc */
Inst in; { /* starting after instance in */
- while (++in < instHw) {
- Cell pi = inst(in).head;
+ Cell pi;
+ while (++in < INST_BASE_ADDR+tabInstSz) {
+ if (!tabInst[in-INST_BASE_ADDR].inUse) continue;
+ assert(isModule(inst(in).mod));
+ pi = inst(in).head;
for (; isAp(pi); pi=fun(pi))
if (typeInvolves(arg(pi),tc))
return in;
|| typeInvolves(arg(ty),tc)));
}
+
+/* Needed by finishGHCInstance to find classes, before the
+ export list has been built -- so we can't use
+ findQualClass.
+*/
+Class findQualClassWithoutConsultingExportList ( QualId q )
+{
+ Class cl;
+ Text t_mod;
+ Text t_class;
+
+ assert(isQCon(q));
+
+ if (isCon(q)) {
+ t_mod = NIL;
+ t_class = textOf(q);
+ } else {
+ t_mod = qmodOf(q);
+ t_class = qtextOf(q);
+ }
+
+ for (cl = CCLASS_BASE_ADDR;
+ cl < CCLASS_BASE_ADDR+tabClassSz; cl++) {
+ if (tabClass[cl-CCLASS_BASE_ADDR].inUse)
+ if (cclass(cl).text == t_class) {
+ /* Class name is ok, but is this the right module? */
+ if (isNull(t_mod) /* no module name specified */
+ || (nonNull(t_mod)
+ && t_mod == module(cclass(cl).mod).text)
+ )
+ return cl;
+ }
+ }
+ return NIL;
+}
+
+/* Same deal, except for Tycons. */
+Tycon findQualTyconWithoutConsultingExportList ( QualId q )
+{
+ Tycon tc;
+ Text t_mod;
+ Text t_tycon;
+
+ assert(isQCon(q));
+
+ if (isCon(q)) {
+ t_mod = NIL;
+ t_tycon = textOf(q);
+ } else {
+ t_mod = qmodOf(q);
+ t_tycon = qtextOf(q);
+ }
+
+ for (tc = TYCON_BASE_ADDR;
+ tc < TYCON_BASE_ADDR+tabTyconSz; tc++) {
+ if (tabTycon[tc-TYCON_BASE_ADDR].inUse)
+ if (tycon(tc).text == t_tycon) {
+ /* Tycon name is ok, but is this the right module? */
+ if (isNull(t_mod) /* no module name specified */
+ || (nonNull(t_mod)
+ && t_mod == module(tycon(tc).mod).text)
+ )
+ return tc;
+ }
+ }
+ return NIL;
+}
+
+/* Same deal, except for Names. */
+Name findQualNameWithoutConsultingExportList ( QualId q )
+{
+ Name nm;
+ Text t_mod;
+ Text t_name;
+
+ assert(isQVar(q) || isQCon(q));
+
+ if (isCon(q) || isVar(q)) {
+ t_mod = NIL;
+ t_name = textOf(q);
+ } else {
+ t_mod = qmodOf(q);
+ t_name = qtextOf(q);
+ }
+
+ for (nm = NAME_BASE_ADDR;
+ nm < NAME_BASE_ADDR+tabNameSz; nm++) {
+ if (tabName[nm-NAME_BASE_ADDR].inUse)
+ if (name(nm).text == t_name) {
+ /* Name is ok, but is this the right module? */
+ if (isNull(t_mod) /* no module name specified */
+ || (nonNull(t_mod)
+ && t_mod == module(name(nm).mod).text)
+ )
+ return nm;
+ }
+ }
+ return NIL;
+}
+
+
+Tycon findTyconInAnyModule ( Text t )
+{
+ Tycon tc;
+ for (tc = TYCON_BASE_ADDR;
+ tc < TYCON_BASE_ADDR+tabTyconSz; tc++)
+ if (tabTycon[tc-TYCON_BASE_ADDR].inUse)
+ if (tycon(tc).text == t) return tc;
+ return NIL;
+}
+
+Class findClassInAnyModule ( Text t )
+{
+ Class cc;
+ for (cc = CCLASS_BASE_ADDR;
+ cc < CCLASS_BASE_ADDR+tabClassSz; cc++)
+ if (tabClass[cc-CCLASS_BASE_ADDR].inUse)
+ if (cclass(cc).text == t) return cc;
+ return NIL;
+}
+
+Name findNameInAnyModule ( Text t )
+{
+ Name nm;
+ for (nm = NAME_BASE_ADDR;
+ nm < NAME_BASE_ADDR+tabNameSz; nm++)
+ if (tabName[nm-NAME_BASE_ADDR].inUse)
+ if (name(nm).text == t) return nm;
+ return NIL;
+}
+
+
+/* returns List of QualId */
+List getAllKnownTyconsAndClasses ( void )
+{
+ Tycon tc;
+ Class nw;
+ List xs = NIL;
+ for (tc = TYCON_BASE_ADDR;
+ tc < TYCON_BASE_ADDR+tabTyconSz; tc++) {
+ if (tabTycon[tc-TYCON_BASE_ADDR].inUse) {
+ /* almost certainly undue paranoia about duplicate avoidance */
+ QualId q = mkQCon( module(tycon(tc).mod).text, tycon(tc).text );
+ if (!qualidIsMember(q,xs))
+ xs = cons ( q, xs );
+ }
+ }
+ for (nw = CCLASS_BASE_ADDR;
+ nw < CCLASS_BASE_ADDR+tabClassSz; nw++) {
+ if (tabClass[nw-CCLASS_BASE_ADDR].inUse) {
+ QualId q = mkQCon( module(cclass(nw).mod).text, cclass(nw).text );
+ if (!qualidIsMember(q,xs))
+ xs = cons ( q, xs );
+ }
+ }
+ return xs;
+}
+
+Int numQualifiers ( Type t )
+{
+ if (isPolyType(t)) t = monotypeOf(t);
+ if (isQualType(t))
+ return length ( fst(snd(t)) ); else
+ return 0;
+}
+
+
+/* Purely for debugging. */
+void locateSymbolByName ( Text t )
+{
+ Int i;
+ for (i = NAME_BASE_ADDR;
+ i < NAME_BASE_ADDR+tabNameSz; i++)
+ if (tabName[i-NAME_BASE_ADDR].inUse && name(i).text == t)
+ fprintf ( stderr, "name(%d)\n", i-NAME_BASE_ADDR);
+ for (i = TYCON_BASE_ADDR;
+ i < TYCON_BASE_ADDR+tabTyconSz; i++)
+ if (tabTycon[i-TYCON_BASE_ADDR].inUse && tycon(i).text == t)
+ fprintf ( stderr, "tycon(%d)\n", i-TYCON_BASE_ADDR);
+ for (i = CCLASS_BASE_ADDR;
+ i < CCLASS_BASE_ADDR+tabClassSz; i++)
+ if (tabClass[i-CCLASS_BASE_ADDR].inUse && cclass(i).text == t)
+ fprintf ( stderr, "class(%d)\n", i-CCLASS_BASE_ADDR);
+}
+
/* --------------------------------------------------------------------------
* Control stack:
*
* operations are defined as macros, expanded inline.
* ------------------------------------------------------------------------*/
-Cell DEFTABLE(cellStack,NUM_STACK); /* Storage for cells on stack */
+Cell cellStack[NUM_STACK]; /* Storage for cells on stack */
StackPtr sp; /* stack pointer */
-#if GIMME_STACK_DUMPS
-
-#define UPPER_DISP 5 /* # display entries on top of stack */
-#define LOWER_DISP 5 /* # display entries on bottom of stack*/
-
-Void hugsStackOverflow() { /* Report stack overflow */
- extern Int rootsp;
- extern Cell evalRoots[];
-
- ERRMSG(0) "Control stack overflow" ETHEN
- if (rootsp>=0) {
- Int i;
- if (rootsp>=UPPER_DISP+LOWER_DISP) {
- for (i=0; i<UPPER_DISP; i++) {
- ERRTEXT "\nwhile evaluating: " ETHEN
- ERREXPR(evalRoots[rootsp-i]);
- }
- ERRTEXT "\n..." ETHEN
- for (i=LOWER_DISP-1; i>=0; i--) {
- ERRTEXT "\nwhile evaluating: " ETHEN
- ERREXPR(evalRoots[i]);
- }
- }
- else {
- for (i=rootsp; i>=0; i--) {
- ERRTEXT "\nwhile evaluating: " ETHEN
- ERREXPR(evalRoots[i]);
- }
- }
- }
- ERRTEXT "\n"
- EEND;
-}
-
-#else /* !GIMME_STACK_DUMPS */
-
Void hugsStackOverflow() { /* Report stack overflow */
ERRMSG(0) "Control stack overflow"
EEND;
}
-#endif /* !GIMME_STACK_DUMPS */
/* --------------------------------------------------------------------------
* Module storage:
*
* ------------------------------------------------------------------------*/
-#if !IGNORE_MODULES
-static Module moduleHw; /* next unused Module */
-struct Module DEFTABLE(tabModule,NUM_MODULE); /* Module storage */
Module currentModule; /* Module currently being processed*/
-Bool isValidModule(m) /* is m a legitimate module id? */
+Bool isValidModule(m) /* is m a legitimate module id? */
Module m; {
- return (MODMIN <= m && m < moduleHw);
+ return isModule(m);
}
-Module newModule(t) /* add new module to module table */
-Text t; {
- if (moduleHw-MODMIN >= NUM_MODULE) {
- ERRMSG(0) "Module storage space exhausted"
- EEND;
- }
- module(moduleHw).text = t; /* clear new module record */
- module(moduleHw).qualImports = NIL;
- module(moduleHw).exports = NIL;
- module(moduleHw).tycons = NIL;
- module(moduleHw).names = NIL;
- module(moduleHw).classes = NIL;
- module(moduleHw).objectFile = 0;
- return moduleHw++;
+Module newModule ( Text t ) /* add new module to module table */
+{
+ Module mod = allocNewModule();
+ module(mod).text = t; /* clear new module record */
+
+ module(mod).tycons = NIL;
+ module(mod).names = NIL;
+ module(mod).classes = NIL;
+ module(mod).exports = NIL;
+ module(mod).qualImports = NIL;
+ module(mod).codeList = NIL;
+ module(mod).fake = FALSE;
+
+ module(mod).tree = NIL;
+ module(mod).completed = FALSE;
+ module(mod).lastStamp = 0; /* ???? */
+
+ module(mod).mode = NIL;
+ module(mod).srcExt = findText("");
+ module(mod).uses = NIL;
+
+ module(mod).objName = findText("");
+ module(mod).objSize = 0;
+
+ module(mod).object = NULL;
+ module(mod).objectExtras = NULL;
+ module(mod).objectExtraNames = NIL;
+ return mod;
}
+
+Bool nukeModule_needs_major_gc = TRUE;
+
+void nukeModule ( Module m )
+{
+ ObjectCode* oc;
+ ObjectCode* oc2;
+ Int i;
+
+ if (!isModule(m)) internal("nukeModule");
+
+ /* fprintf ( stderr, "NUKE MODULE %s\n", textToStr(module(m).text) ); */
+
+ /* see comment in compiler.c about this,
+ and interaction with info tables */
+ if (nukeModule_needs_major_gc) {
+ /* fprintf ( stderr, "doing major GC in nukeModule\n"); */
+ /* performMajorGC(); */
+ nukeModule_needs_major_gc = FALSE;
+ }
+
+ oc = module(m).object;
+ while (oc) {
+ oc2 = oc->next;
+ ocFree(oc);
+ oc = oc2;
+ }
+ oc = module(m).objectExtras;
+ while (oc) {
+ oc2 = oc->next;
+ ocFree(oc);
+ oc = oc2;
+ }
+
+ for (i = NAME_BASE_ADDR; i < NAME_BASE_ADDR+tabNameSz; i++)
+ if (tabName[i-NAME_BASE_ADDR].inUse && name(i).mod == m) {
+ if (name(i).itbl &&
+ module(name(i).mod).mode == FM_SOURCE) {
+ free(name(i).itbl);
+ }
+ name(i).itbl = NULL;
+ name(i).closure = NIL;
+ freeName(i);
+ }
+
+ for (i = TYCON_BASE_ADDR; i < TYCON_BASE_ADDR+tabTyconSz; i++)
+ if (tabTycon[i-TYCON_BASE_ADDR].inUse && tycon(i).mod == m) {
+ if (tycon(i).itbl &&
+ module(tycon(i).mod).mode == FM_SOURCE) {
+ free(tycon(i).itbl);
+ }
+ tycon(i).itbl = NULL;
+ freeTycon(i);
+ }
+
+ for (i = CCLASS_BASE_ADDR; i < CCLASS_BASE_ADDR+tabClassSz; i++)
+ if (tabClass[i-CCLASS_BASE_ADDR].inUse) {
+ if (cclass(i).mod == m) {
+ freeClass(i);
+ } else {
+ List /* Inst */ ins;
+ List /* Inst */ ins2 = NIL;
+ for (ins = cclass(i).instances; nonNull(ins); ins=tl(ins))
+ if (inst(hd(ins)).mod != m)
+ ins2 = cons(hd(ins),ins2);
+ cclass(i).instances = ins2;
+ }
+ }
+
+
+ for (i = INST_BASE_ADDR; i < INST_BASE_ADDR+tabInstSz; i++)
+ if (tabInst[i-INST_BASE_ADDR].inUse && inst(i).mod == m)
+ freeInst(i);
+
+ freeModule(m);
+ //for (i = 0; i < TYCONHSZ; i++) tyconHash[i] = 0;
+ //for (i = 0; i < NAMEHSZ; i++) nameHash[i] = 0;
+ //classes = NIL;
+ //hashSanity();
+}
+
+void ppModules ( void )
+{
+ Int i;
+ fflush(stderr); fflush(stdout);
+ printf ( "begin MODULES\n" );
+ for (i = MODULE_BASE_ADDR+tabModuleSz-1;
+ i >= MODULE_BASE_ADDR; i--)
+ if (tabModule[i-MODULE_BASE_ADDR].inUse)
+ printf ( " %2d: %16s\n",
+ i-MODULE_BASE_ADDR, textToStr(module(i).text)
+ );
+ printf ( "end MODULES\n" );
+ fflush(stderr); fflush(stdout);
+}
+
+
Module findModule(t) /* locate Module in module table */
Text t; {
Module m;
- for(m=MODMIN; m<moduleHw; ++m) {
- if (module(m).text==t)
- return m;
+ for(m = MODULE_BASE_ADDR;
+ m < MODULE_BASE_ADDR+tabModuleSz; ++m) {
+ if (tabModule[m-MODULE_BASE_ADDR].inUse)
+ if (module(m).text==t)
+ return m;
}
return NIL;
}
Module findModid(c) /* Find module by name or filename */
Cell c; {
switch (whatIs(c)) {
- case STRCELL : { Script s = scriptThisFile(snd(c));
- return (s==-1) ? NIL : moduleOfScript(s);
- }
+ case STRCELL : internal("findModid-STRCELL unimp");
case CONIDCELL : return findModule(textOf(c));
default : internal("findModid");
}
- assert(0); return 0; /* NOTREACHED */
+ return NIL;/*NOTUSED*/
}
static local Module findQualifier(t) /* locate Module in import list */
if (textOf(fst(hd(ms)))==t)
return snd(hd(ms));
}
-#if 1 /* mpj */
if (module(currentModule).text==t)
return currentModule;
-#endif
return NIL;
}
Void setCurrModule(m) /* set lookup tables for current module */
Module m; {
Int i;
- if (m!=currentModule) {
- currentModule = m; /* This is the only assignment to currentModule */
- for (i=0; i<TYCONHSZ; ++i)
- tyconHash[i] = NIL;
- mapProc(hashTycon,module(m).tycons);
- for (i=0; i<NAMEHSZ; ++i)
- nameHash[i] = NIL;
- mapProc(hashName,module(m).names);
- classes = module(m).classes;
- }
+ assert(isModule(m));
+ /* fprintf(stderr, "SET CURR MODULE %s %d\n", textToStr(module(m).text),m); */
+ {List t;
+ for (t = module(m).names; nonNull(t); t=tl(t))
+ assert(isName(hd(t)));
+ for (t = module(m).tycons; nonNull(t); t=tl(t))
+ assert(isTycon(hd(t)) || isTuple(hd(t)));
+ for (t = module(m).classes; nonNull(t); t=tl(t))
+ assert(isClass(hd(t)));
+ }
+
+ currentModule = m; /* This is the only assignment to currentModule */
+ for (i=0; i<TYCONHSZ; ++i)
+ tyconHash[RC_T(i)] = NIL;
+ mapProc(hashTycon,module(m).tycons);
+ for (i=0; i<NAMEHSZ; ++i)
+ nameHash[RC_N(i)] = NIL;
+ mapProc(hashName,module(m).names);
+ classes = module(m).classes;
+ hashSanity();
+}
+
+void addToCodeList ( Module m, Cell c )
+{
+ assert(isName(c) || isTuple(c));
+ if (nonNull(getNameOrTupleClosure(c)))
+ module(m).codeList = cons ( c, module(m).codeList );
+ /* fprintf ( stderr, "addToCodeList %s %s\n",
+ textToStr(module(m).text),
+ textToStr( isTuple(c) ? tycon(c).text : name(c).text ) );
+ */
}
-#endif /* !IGNORE_MODULES */
-
-/* --------------------------------------------------------------------------
- * Script file storage:
- *
- * script files are read into the system one after another. The state of
- * the stored data structures (except the garbage-collected heap) is recorded
- * before reading a new script. In the event of being unable to read the
- * script, or if otherwise requested, the system can be restored to its
- * original state immediately before the file was read.
- * ------------------------------------------------------------------------*/
-typedef struct { /* record of storage state prior to */
- Text file; /* reading script/module */
- Text textHw;
- Text nextNewText;
- Text nextNewDText;
-#if !IGNORE_MODULES
- Module moduleHw;
-#endif
- Tycon tyconHw;
- Name nameHw;
- Class classHw;
- Inst instHw;
-#if TREX
- Ext extHw;
-#endif
-} script;
-
-#ifdef DEBUG_SHOWUSE
-static Void local showUse(msg,val,mx)
-String msg;
-Int val, mx; {
- Printf("%6s : %5d of %5d (%2d%%)\n",msg,val,mx,(100*val)/mx);
+Cell getNameOrTupleClosure ( Cell c )
+{
+ if (isName(c)) return name(c).closure;
+ else if (isTuple(c)) return tycon(c).closure;
+ else internal("getNameOrTupleClosure");
}
-#endif
-static Script scriptHw; /* next unused script number */
-static script scripts[NUM_SCRIPTS]; /* storage for script records */
-
-Script startNewScript(f) /* start new script, keeping record */
-String f; { /* of status for later restoration */
- if (scriptHw >= NUM_SCRIPTS) {
- ERRMSG(0) "Too many script files in use"
- EEND;
- }
-#ifdef DEBUG_SHOWUSE
- showUse("Text", textHw, NUM_TEXT);
-#if !IGNORE_MODULES
- showUse("Module", moduleHw-MODMIN, NUM_MODULE);
-#endif
- showUse("Tycon", tyconHw-TYCMIN, NUM_TYCON);
- showUse("Name", nameHw-NAMEMIN, NUM_NAME);
- showUse("Class", classHw-CLASSMIN, NUM_CLASSES);
- showUse("Inst", instHw-INSTMIN, NUM_INSTS);
-#if TREX
- showUse("Ext", extHw-EXTMIN, NUM_EXT);
-#endif
-#endif
-
- scripts[scriptHw].file = findText( f ? f : "<nofile>" );
- scripts[scriptHw].textHw = textHw;
- scripts[scriptHw].nextNewText = nextNewText;
- scripts[scriptHw].nextNewDText = nextNewDText;
-#if !IGNORE_MODULES
- scripts[scriptHw].moduleHw = moduleHw;
-#endif
- scripts[scriptHw].tyconHw = tyconHw;
- scripts[scriptHw].nameHw = nameHw;
- scripts[scriptHw].classHw = classHw;
- scripts[scriptHw].instHw = instHw;
-#if TREX
- scripts[scriptHw].extHw = extHw;
-#endif
- return scriptHw++;
+void setNameOrTupleClosure ( Cell c, Cell closure )
+{
+ if (isName(c)) name(c).closure = closure;
+ else if (isTuple(c)) tycon(c).closure = closure;
+ else internal("setNameOrTupleClosure");
}
-Bool isPreludeScript() { /* Test whether this is the Prelude*/
- return (scriptHw==0);
+/* This function is used in ghc/rts/Assembler.c. */
+void* /* StgClosure* */ getNameOrTupleClosureCPtr ( Cell c )
+{
+ return cptrOf(getNameOrTupleClosure(c));
}
-#if !IGNORE_MODULES
-Bool moduleThisScript(m) /* Test if given module is defined */
-Module m; { /* in current script file */
- return scriptHw<1 || m>=scripts[scriptHw-1].moduleHw;
+/* used in codegen.c */
+void setNameOrTupleClosureCPtr ( Cell c, void* /* StgClosure* */ cptr )
+{
+ if (isName(c)) name(c).closure = mkCPtr(cptr);
+ else if (isTuple(c)) tycon(c).closure = mkCPtr(cptr);
+ else internal("setNameOrTupleClosureCPtr");
}
-Module lastModule() { /* Return module in current script file */
- return (moduleHw>MODMIN ? moduleHw-1 : modulePrelude);
-}
-#endif /* !IGNORE_MODULES */
-#define scriptThis(nm,t,tag) Script nm(x) \
- t x; { \
- Script s=0; \
- while (s<scriptHw \
- && x>=scripts[s].tag) \
- s++; \
- return s; \
- }
-scriptThis(scriptThisName,Name,nameHw)
-scriptThis(scriptThisTycon,Tycon,tyconHw)
-scriptThis(scriptThisInst,Inst,instHw)
-scriptThis(scriptThisClass,Class,classHw)
-#undef scriptThis
-Module moduleOfScript(s)
-Script s; {
- return (s==0) ? modulePrelude : scripts[s-1].moduleHw;
-}
+Name jrsFindQualName ( Text mn, Text sn )
+{
+ Module m;
+ List ns;
-#if !IGNORE_MODULES
-String fileOfModule(m)
-Module m; {
- Script s;
- if (m == modulePrelude) {
- return STD_PRELUDE;
- }
- for(s=0; s<scriptHw; ++s) {
- if (scripts[s].moduleHw == m) {
- return textToStr(scripts[s].file);
- }
- }
- return 0;
-}
-#endif
+ for (m = MODULE_BASE_ADDR;
+ m < MODULE_BASE_ADDR+tabModuleSz; m++)
+ if (tabModule[m-MODULE_BASE_ADDR].inUse
+ && module(m).text == mn) break;
-Script scriptThisFile(f)
-Text f; {
- Script s;
- for (s=0; s < scriptHw; ++s) {
- if (scripts[s].file == f) {
- return s+1;
- }
- }
- if (f == findText(STD_PRELUDE)) {
- return 0;
- }
- return (-1);
-}
-
-Void dropScriptsFrom(sno) /* Restore storage to state prior */
-Script sno; { /* to reading script sno */
- if (sno<scriptHw) { /* is there anything to restore? */
- int i;
- textHw = scripts[sno].textHw;
- nextNewText = scripts[sno].nextNewText;
- nextNewDText = scripts[sno].nextNewDText;
-#if !IGNORE_MODULES
- moduleHw = scripts[sno].moduleHw;
-#endif
- tyconHw = scripts[sno].tyconHw;
- nameHw = scripts[sno].nameHw;
- classHw = scripts[sno].classHw;
- instHw = scripts[sno].instHw;
-#if USE_DICTHW
- dictHw = scripts[sno].dictHw;
-#endif
-#if TREX
- extHw = scripts[sno].extHw;
-#endif
+ if (m == MODULE_BASE_ADDR+tabModuleSz) return NIL;
+
+ for (ns = module(m).names; nonNull(ns); ns=tl(ns))
+ if (name(hd(ns)).text == sn) return hd(ns);
-#if 0 //zzzzzzzzzzzzzzzzz
- for (i=moduleHw; i >= scripts[sno].moduleHw; --i) {
- if (module(i).objectFile) {
- printf("[bogus] closing objectFile for module %d\n",i);
- /*dlclose(module(i).objectFile);*/
- }
- }
- moduleHw = scripts[sno].moduleHw;
-#endif
- for (i=0; i<TEXTHSZ; ++i) {
- int j = 0;
- while (j<NUM_TEXTH && textHash[i][j]!=NOTEXT
- && textHash[i][j]<textHw)
- ++j;
- if (j<NUM_TEXTH)
- textHash[i][j] = NOTEXT;
- }
+ return NIL;
+}
-#if IGNORE_MODULES
- for (i=0; i<TYCONHSZ; ++i) {
- Tycon tc = tyconHash[i];
- while (nonNull(tc) && tc>=tyconHw)
- tc = tycon(tc).nextTyconHash;
- tyconHash[i] = tc;
- }
- for (i=0; i<NAMEHSZ; ++i) {
- Name n = nameHash[i];
- while (nonNull(n) && n>=nameHw)
- n = name(n).nextNameHash;
- nameHash[i] = n;
- }
-#else /* !IGNORE_MODULES */
- currentModule=NIL;
- for (i=0; i<TYCONHSZ; ++i) {
- tyconHash[i] = NIL;
- }
- for (i=0; i<NAMEHSZ; ++i) {
- nameHash[i] = NIL;
- }
-#endif /* !IGNORE_MODULES */
+char* nameFromOPtr ( void* p )
+{
+ int i;
+ Module m;
+ for (m = MODULE_BASE_ADDR;
+ m < MODULE_BASE_ADDR+tabModuleSz; m++) {
+ if (tabModule[m-MODULE_BASE_ADDR].inUse && module(m).object) {
+ char* nm = ocLookupAddr ( module(m).object, p );
+ if (nm) return nm;
+ }
+ }
+# if 0
+ /* A kludge to assist Win32 debugging; not actually necessary. */
+ { char* nm = nameFromStaticOPtr(p);
+ if (nm) return nm;
+ }
+# endif
+ return NULL;
+}
+
+
+void* lookupOTabName ( Module m, char* sym )
+{
+ assert(isModule(m));
+ if (module(m).object)
+ return ocLookupSym ( module(m).object, sym );
+ return NULL;
+}
- for (i=CLASSMIN; i<classHw; i++) {
- List ins = cclass(i).instances;
- List is = NIL;
- while (nonNull(ins)) {
- List temp = tl(ins);
- if (hd(ins)<instHw) {
- tl(ins) = is;
- is = ins;
- }
- ins = temp;
- }
- cclass(i).instances = rev(is);
- }
+void* lookupOExtraTabName ( char* sym )
+{
+ ObjectCode* oc;
+ Module m;
+ for (m = MODULE_BASE_ADDR;
+ m < MODULE_BASE_ADDR+tabModuleSz; m++) {
+ if (tabModule[m-MODULE_BASE_ADDR].inUse)
+ for (oc = module(m).objectExtras; oc; oc=oc->next) {
+ void* ad = ocLookupSym ( oc, sym );
+ if (ad) return ad;
+ }
+ }
+ return NULL;
+}
+
+
+/* Only call this if in dire straits; searches every object symtab
+ in the system -- so is therefore slow.
+*/
+void* lookupOTabNameAbsolutelyEverywhere ( char* sym )
+{
+ ObjectCode* oc;
+ Module m;
+ void* ad;
+ for (m = MODULE_BASE_ADDR;
+ m < MODULE_BASE_ADDR+tabModuleSz; m++) {
+ if (tabModule[m-MODULE_BASE_ADDR].inUse) {
+ if (module(m).object) {
+ ad = ocLookupSym ( module(m).object, sym );
+ if (ad) return ad;
+ }
+ for (oc = module(m).objectExtras; oc; oc=oc->next) {
+ ad = ocLookupSym ( oc, sym );
+ if (ad) return ad;
+ }
+ }
+ }
+ return NULL;
+}
+
+
+OSectionKind lookupSection ( void* ad )
+{
+ int i;
+ Module m;
+ ObjectCode* oc;
+ OSectionKind sect;
+
+ for (m = MODULE_BASE_ADDR;
+ m < MODULE_BASE_ADDR+tabModuleSz; m++) {
+ if (tabModule[m-MODULE_BASE_ADDR].inUse) {
+ if (module(m).object) {
+ sect = ocLookupSection ( module(m).object, ad );
+ if (sect != HUGS_SECTIONKIND_NOINFOAVAIL)
+ return sect;
+ }
+ for (oc = module(m).objectExtras; oc; oc=oc->next) {
+ sect = ocLookupSection ( oc, ad );
+ if (sect != HUGS_SECTIONKIND_NOINFOAVAIL)
+ return sect;
+ }
+ }
+ }
+ return HUGS_SECTIONKIND_OTHER;
+}
+
+
+/* Called by the evaluator's GC to tell Hugs to mark stuff in the
+ run-time heap.
+*/
+void markHugsObjects( void )
+{
+ Name nm;
+ Tycon tc;
- scriptHw = sno;
+ for ( nm = NAME_BASE_ADDR;
+ nm < NAME_BASE_ADDR+tabNameSz; ++nm ) {
+ if (tabName[nm-NAME_BASE_ADDR].inUse) {
+ Cell cl = name(nm).closure;
+ if (nonNull(cl)) {
+ assert(isCPtr(cl));
+ snd(cl) = (Cell)MarkRoot ( (StgClosure*)(snd(cl)) );
+ }
+ }
}
+
+ for ( tc = TYCON_BASE_ADDR;
+ tc < TYCON_BASE_ADDR+tabTyconSz; ++tc ) {
+ if (tabTycon[tc-TYCON_BASE_ADDR].inUse) {
+ Cell cl = tycon(tc).closure;
+ if (nonNull(cl)) {
+ assert(isCPtr(cl));
+ snd(cl) = (Cell)MarkRoot ( (StgClosure*)(snd(cl)) );
+ }
+ }
+ }
+
}
+
/* --------------------------------------------------------------------------
* Heap storage:
*
Int heapSize = DEFAULTHEAP; /* number of cells in heap */
Heap heapFst; /* array of fst component of pairs */
Heap heapSnd; /* array of snd component of pairs */
-#ifndef GLOBALfst
Heap heapTopFst;
-#endif
-#ifndef GLOBALsnd
Heap heapTopSnd;
-#endif
Bool consGC = TRUE; /* Set to FALSE to turn off gc from*/
/* C stack; use with extreme care! */
-#if PROFILING
-Heap heapThd, heapTopThd; /* to keep record of producers */
-Int sysCount; /* record unattached cells */
-Name producer; /* current producer, if any */
-Bool profiling = FALSE; /* should profiling be performed */
-Int profInterval = MAXPOSINT; /* interval between samples */
-FILE *profile = 0; /* pointer to profiler log, if any */
-#endif
Long numCells;
+int numEnters;
Int numGcs; /* number of garbage collections */
Int cellsRecovered; /* number of cells recovered */
static Cell freeList; /* free list of unused cells */
static Cell lsave, rsave; /* save components of pair */
-#if GC_WEAKPTRS
-static List weakPtrs; /* list of weak ptrs */
- /* reconstructed during every GC */
-List finalizers = NIL;
-List liveWeakPtrs = NIL;
-#endif
-
#if GC_STATISTICS
static Int markCount, stackRoots;
Cell pair(l,r) /* Allocate pair (l, r) from */
Cell l, r; { /* heap, garbage collecting first */
Cell c = freeList; /* if necessary ... */
-
if (isNull(c)) {
lsave = l;
rsave = r;
freeList = snd(freeList);
fst(c) = l;
snd(c) = r;
-#if PROFILING
- thd(c) = producer;
-#endif
numCells++;
return c;
}
-Void overwrite(dst,src) /* overwrite dst cell with src cell*/
-Cell dst, src; { /* both *MUST* be pairs */
- if (isPair(dst) && isPair(src)) {
- fst(dst) = fst(src);
- snd(dst) = snd(src);
- }
- else
- internal("overwrite");
-}
-
static Int *marks;
static Int marksSize;
-Cell markExpr(c) /* External interface to markCell */
-Cell c; {
- return isGenPair(c) ? markCell(c) : c;
-}
-
-static Cell local markCell(c) /* Traverse part of graph marking */
-Cell c; { /* cells reachable from given root */
- /* markCell(c) is only called if c */
- /* is a pair */
- { register int place = placeInSet(c);
- register int mask = maskInSet(c);
- if (marks[place]&mask)
- return c;
- else {
+void mark ( Cell root )
+{
+ Cell c;
+ Cell mstack[NUM_MSTACK];
+ Int msp = -1;
+ Int msp_max = -1;
+
+ mstack[++msp] = root;
+
+ while (msp >= 0) {
+ if (msp > msp_max) msp_max = msp;
+ c = mstack[msp--];
+ if (!isGenPair(c)) continue;
+ if (fst(c)==FREECELL) continue;
+ {
+ register int place = placeInSet(c);
+ register int mask = maskInSet(c);
+ if (!(marks[place]&mask)) {
marks[place] |= mask;
- recordMark();
- }
- }
-
- if (isGenPair(fst(c))) {
- fst(c) = markCell(fst(c));
- markSnd(c);
- }
- else if (isNull(fst(c)) || fst(c)>=BCSTAG) {
- markSnd(c);
- }
-
- return c;
+ if (msp >= NUM_MSTACK-5) {
+ fprintf ( stderr,
+ "hugs: fatal stack overflow during GC. "
+ "Increase NUM_MSTACK.\n" );
+ exit(9);
+ }
+ mstack[++msp] = fst(c);
+ mstack[++msp] = snd(c);
+ }
+ }
+ }
+ // fprintf(stderr, "%d ",msp_max);
}
-static Void local markSnd(c) /* Variant of markCell used to */
-Cell c; { /* update snd component of cell */
- Cell t; /* using tail recursion */
-
-ma: t = c; /* Keep pointer to original pair */
- c = snd(c);
- if (!isPair(c))
- return;
-
- { register int place = placeInSet(c);
- register int mask = maskInSet(c);
- if (marks[place]&mask)
- return;
- else {
- marks[place] |= mask;
- recordMark();
- }
- }
-
- if (isGenPair(fst(c))) {
- fst(c) = markCell(fst(c));
- goto ma;
- }
- else if (isNull(fst(c)) || fst(c)>=BCSTAG)
- goto ma;
- return;
-}
-
-Void markWithoutMove(n) /* Garbage collect cell at n, as if*/
-Cell n; { /* it was a cell ref, but don't */
- /* move cell so we don't have */
- /* to modify the stored value of n */
- if (isGenPair(n)) {
- recordStackRoot();
- markCell(n);
- }
-}
Void garbageCollect() { /* Run garbage collector ... */
- Bool breakStat = breakOn(FALSE); /* disable break checking */
+ /* disable break checking */
Int i,j;
register Int mask;
register Int place;
Int recovered;
-
jmp_buf regs; /* save registers on stack */
-printf("\n\n$$$$$$$$$$$ GARBAGE COLLECTION; aborting\n\n");
-exit(1);
+ HugsBreakAction oldBrk
+ = setBreakAction ( HugsIgnoreBreak );
+
setjmp(regs);
gcStarted();
+
for (i=0; i<marksSize; ++i) /* initialise mark set to empty */
marks[i] = 0;
-#if GC_WEAKPTRS
- weakPtrs = NIL; /* clear list of weak pointers */
-#endif
- everybody(MARK); /* Mark all components of system */
-
-#if IO_HANDLES
- for (i=0; i<NUM_HANDLES; ++i) /* release any unused handles */
- if (nonNull(handles[i].hcell)) {
- register place = placeInSet(handles[i].hcell);
- register mask = maskInSet(handles[i].hcell);
- if ((marks[place]&mask)==0)
- freeHandle(i);
- }
-#endif
-#if GC_MALLOCPTRS
- for (i=0; i<NUM_MALLOCPTRS; ++i) /* release any unused mallocptrs */
- if (isPair(mallocPtrs[i].mpcell)) {
- register place = placeInSet(mallocPtrs[i].mpcell);
- register mask = maskInSet(mallocPtrs[i].mpcell);
- if ((marks[place]&mask)==0)
- incMallocPtrRefCnt(i,-1);
- }
-#endif /* GC_MALLOCPTRS */
-#if GC_WEAKPTRS
- /* After GC completes, we scan the list of weak pointers that are
- * still live and zap their contents unless the contents are still
- * live (by some other means).
- * Note that this means the contents must itself be heap allocated.
- * This means it can't be a nullary constructor or an Int or a Name
- * or lots of other things - hope this doesn't bite too hard.
- */
- for (; nonNull(weakPtrs); weakPtrs=nextWeakPtr(weakPtrs)) {
- Cell ptr = derefWeakPtr(weakPtrs);
- if (isGenPair(ptr)) {
- Int place = placeInSet(ptr);
- Int mask = maskInSet(ptr);
- if ((marks[place]&mask)==0) {
- /* printf("Zapping weak pointer %d\n", ptr); */
- derefWeakPtr(weakPtrs) = NIL;
- } else {
- /* printf("Keeping weak pointer %d\n", ptr); */
- }
- } else if (nonNull(ptr)) {
- printf("Weak ptr contains object which isn't heap allocated %d\n", ptr);
- }
- }
-
- if (nonNull(liveWeakPtrs) || nonNull(finalizers)) {
- Bool anyMarked; /* Weak pointers with finalizers */
- List wps;
- List newFins = NIL;
-
- /* Step 1: iterate until we've found out what is reachable */
- do {
- anyMarked = FALSE;
- for (wps=liveWeakPtrs; nonNull(wps); wps=tl(wps)) {
- Cell wp = hd(wps);
- Cell k = fst(snd(wp));
- if (isNull(k)) {
- internal("bad weak ptr");
- }
- if (isMarked(k)) {
- Cell vf = snd(snd(wp));
- if (!isMarked(fst(vf)) || !isMarked(snd(vf))) {
- mark(fst(vf));
- mark(snd(vf));
- anyMarked = TRUE;
- }
- }
- }
- } while (anyMarked);
-
- /* Step 2: Now we know which weak pointers will die, so we can */
- /* remove them from the live set and gather their finalizers. But */
- /* note that we mustn't mark *anything* at this stage or we will */
- /* corrupt our view of what's alive, and what's dead. */
- wps = NIL;
- while (nonNull(liveWeakPtrs)) {
- Cell wp = hd(liveWeakPtrs);
- List nx = tl(liveWeakPtrs);
- Cell k = fst(snd(wp));
- if (!isMarked(k)) { /* If the key is dead, then*/
- Cell vf = snd(snd(wp)); /* stomp on weak pointer */
- fst(vf) = snd(vf);
- snd(vf) = newFins;
- newFins = vf; /* reuse because we can't */
- fst(snd(wp)) = NIL; /* reallocate here ... */
- snd(snd(wp)) = NIL;
- snd(wp) = NIL;
- liveWeakPtrs = nx;
- } else {
- tl(liveWeakPtrs) = wps; /* Otherwise, weak pointer */
- wps = liveWeakPtrs;/* survives to face another*/
- liveWeakPtrs = nx; /* garbage collection */
- }
- }
- /* Step 3: Now we've identified the live cells and the newly */
- /* scheduled finalizers, but we had better make sure that they are */
- /* all marked now, including any internal structure, to ensure that*/
- /* they make it to the other side of gc. */
- for (liveWeakPtrs=wps; nonNull(wps); wps=tl(wps)) {
- mark(snd(hd(wps)));
- }
- mark(liveWeakPtrs);
- mark(newFins);
- finalizers = revOnto(newFins,finalizers);
- }
+ everybody(MARK); /* Mark all components of system */
-#endif /* GC_WEAKPTRS */
gcScanning(); /* scan mark set */
mask = 1;
place = 0;
recovered = 0;
j = 0;
-#if PROFILING
- if (profile) {
- sysCount = 0;
- for (i=NAMEMIN; i<nameHw; i++)
- name(i).count = 0;
- }
-#endif
+
freeList = NIL;
for (i=1; i<=heapSize; i++) {
if ((marks[place] & mask) == 0) {
freeList = -i;
recovered++;
}
-#if PROFILING
- else if (nonNull(thd(-i)))
- name(thd(-i)).count++;
- else
- sysCount++;
-#endif
mask <<= 1;
if (++j == bitsPerWord) {
place++;
}
gcRecovered(recovered);
- breakOn(breakStat); /* restore break trapping if nec. */
-
-#if PROFILING
- if (profile) {
- fprintf(profile,"BEGIN_SAMPLE %ld.00\n",numReductions);
-/* For the time being, we won't include the system count in the output:
- if (sysCount>0)
- fprintf(profile," SYSTEM %d\n",sysCount);
-*/
- /* Accumulate costs in top level objects */
- for (i=NAMEMIN; i<nameHw; i++) {
- Name cc = i;
- /* Use of "while" instead of "if" is pure paranoia - ADR */
- while (isName(name(cc).parent))
- cc = name(cc).parent;
- if (i != cc) {
- name(cc).count += name(i).count;
- name(i).count = 0;
- }
- }
- for (i=NAMEMIN; i<nameHw; i++)
- if (name(i).count>0)
- if (isPair(name(i).parent)) {
- Pair p = name(i).parent;
- Cell f = fst(p);
- fprintf(profile," ");
- if (isClass(f))
- fprintf(profile,"%s",textToStr(cclass(f).text));
- else {
- fprintf(profile,"%s_",textToStr(cclass(inst(f).c).text));
- /* Will hp2ps accept the spaces produced by this? */
- printPred(profile,inst(f).head);
- }
- fprintf(profile,"_%s %d\n",
- textToStr(name(snd(p)).text),
- name(i).count);
- } else {
- fprintf(profile," %s %d\n",
- textToStr(name(i).text),
- name(i).count);
- }
- fprintf(profile,"END_SAMPLE %ld.00\n",numReductions);
- }
+ setBreakAction ( oldBrk );
+
+ everybody(GCDONE);
+
+#if defined(DEBUG_STORAGE) || defined(DEBUG_STORAGE_EXTRA)
+ /* fprintf(stderr, "\n--- GC recovered %d\n",recovered ); */
#endif
/* can only return if freeList is nonempty on return. */
cellsRecovered = recovered;
}
-#if PROFILING
-Void profilerLog(s) /* turn heap profiling on, saving log*/
-String s; { /* in specified file */
- if ((profile=fopen(s,"w")) != NULL) {
- fprintf(profile,"JOB \"Hugs Heap Profile\"\n");
- fprintf(profile,"DATE \"%s\"\n",timeString());
- fprintf(profile,"SAMPLE_UNIT \"reductions\"\n");
- fprintf(profile,"VALUE_UNIT \"cells\"\n");
- }
- else {
- ERRMSG(0) "Cannot open profile log file \"%s\"", s
- EEND;
- }
-}
-#endif
-
/* --------------------------------------------------------------------------
* Code for saving last expression entered:
*
Void setLastExpr(e) /* save expression for later recall*/
Cell e; {
lastExprSaved = NIL; /* in case attempt to save fails */
- savedText = NUM_TEXT;
+ savedText = TEXT_SIZE;
lastExprSaved = lowLevelLastIn(e);
}
static Cell local lowLevelLastIn(c) /* Duplicate expression tree (i.e. */
Cell c; { /* acyclic graph) for later recall */
if (isPair(c)) { /* Duplicating any text strings */
- if (isBoxTag(fst(c))) /* in case these are lost at some */
+ if (isTagNonPtr(fst(c))) /* in case these are lost at some */
switch (fst(c)) { /* point before the expr is reused */
case VARIDCELL :
case VAROPCELL :
static Cell local lowLevelLastOut(c) /* As with lowLevelLastIn() above */
Cell c; { /* except that Cells refering to */
if (isPair(c)) { /* Text values are restored to */
- if (isBoxTag(fst(c))) /* appropriate values */
+ if (isTagNonPtr(fst(c))) /* appropriate values */
switch (fst(c)) {
case VARIDCELL :
case VAROPCELL :
* Miscellaneous operations on heap cells:
* ------------------------------------------------------------------------*/
-/* Profiling suggests that the number of calls to whatIs() is typically */
-/* rather high. The recoded version below attempts to improve the average */
-/* performance for whatIs() using a binary search for part of the analysis */
-
-Cell whatIs(c) /* identify type of cell */
-register Cell c; {
+/* Reordered 2 May 00 to have most common options first. */
+Cell whatIs ( register Cell c )
+{
if (isPair(c)) {
register Cell fstc = fst(c);
return isTag(fstc) ? fstc : AP;
}
- if (c<TUPMIN) return c;
- if (c>=INTMIN) return INTCELL;
-
- if (c>=NAMEMIN){if (c>=CLASSMIN) {if (c>=CHARMIN) return CHARCELL;
- else return CLASS;}
- else if (c>=INSTMIN) return INSTANCE;
- else return NAME;}
- else if (c>=MODMIN) {if (c>=TYCMIN) return TYCON;
- else return MODULE;}
- else if (c>=OFFMIN) return OFFSET;
-#if TREX
- else return (c>=EXTMIN) ?
- EXT : TUPLE;
-#else
- else return TUPLE;
-#endif
-
-/* if (isPair(c)) {
- register Cell fstc = fst(c);
- return isTag(fstc) ? fstc : AP;
- }
- if (c>=INTMIN) return INTCELL;
- if (c>=CHARMIN) return CHARCELL;
- if (c>=CLASSMIN) return CLASS;
- if (c>=INSTMIN) return INSTANCE;
- if (c>=NAMEMIN) return NAME;
- if (c>=TYCMIN) return TYCON;
- if (c>=MODMIN) return MODULE;
- if (c>=OFFMIN) return OFFSET;
-#if TREX
- if (c>=EXTMIN) return EXT;
-#endif
- if (c>=TUPMIN) return TUPLE;
- return c;*/
+ if (isTycon(c)) return TYCON;
+ if (isOffset(c)) return OFFSET;
+ if (isName(c)) return NAME;
+ if (isInt(c)) return INTCELL;
+ if (isTuple(c)) return TUPLE;
+ if (isSpec(c)) return c;
+ if (isClass(c)) return CLASS;
+ if (isChar(c)) return CHARCELL;
+ if (isNull(c)) return c;
+ if (isInst(c)) return INSTANCE;
+ if (isModule(c)) return MODULE;
+ if (isText(c)) return TEXTCELL;
+ if (isInventedVar(c)) return INVAR;
+ if (isInventedDictVar(c)) return INDVAR;
+ fprintf ( stderr, "whatIs: unknown %d\n", c );
+ internal("whatIs");
}
-#if DEBUG_PRINTER
+
+
/* A very, very simple printer.
* Output is uglier than from printExp - but the printer is more
* robust and can be used on any data structure irrespective of
* its type.
*/
-Void print Args((Cell, Int));
-Void print(c, depth)
-Cell c;
-Int depth; {
+Void print ( Cell c, Int depth )
+{
if (0 == depth) {
Printf("...");
-#if 0 /* Not in this version of Hugs */
- } else if (isPair(c) && !isGenPair(c)) {
- extern Void printEvalCell Args((Cell, Int));
- printEvalCell(c,depth);
-#endif
- } else {
+ }
+ else if (isNull(c)) {
+ Printf("NIL");
+ }
+ else if (isTagPtr(c)) {
+ Printf("TagP(%d)", c);
+ }
+ else if (isTagNonPtr(c)) {
+ Printf("TagNP(%d)", c);
+ }
+ else if (isSpec(c) && c != STAR) {
+ Printf("TagS(%d)", c);
+ }
+ else if (isText(c)) {
+ Printf("text(%d)=\"%s\"",c-TEXT_BASE_ADDR,textToStr(c));
+ }
+ else if (isInventedVar(c)) {
+ Printf("invented(%d)", c-INVAR_BASE_ADDR);
+ }
+ else if (isInventedDictVar(c)) {
+ Printf("inventedDict(%d)",c-INDVAR_BASE_ADDR);
+ }
+ else {
Int tag = whatIs(c);
switch (tag) {
case AP:
case CHARCELL:
Printf("char('%c')", charOf(c));
break;
- case PTRCELL:
- Printf("ptr(%p)",ptrOf(c));
+ case STRCELL:
+ Printf("strcell(\"%s\")",textToStr(snd(c)));
+ break;
+ case MPTRCELL:
+ Printf("mptr(%p)",mptrOf(c));
+ break;
+ case CPTRCELL:
+ Printf("cptr(%p)",cptrOf(c));
+ break;
+ case ADDRCELL:
+ Printf("addr(%p)",addrOf(c));
break;
case CLASS:
- Printf("class(%d)", c-CLASSMIN);
- if (CLASSMIN <= c && c < classHw) {
- Printf("=\"%s\"", textToStr(cclass(c).text));
- }
+ Printf("class(%d)", c-CCLASS_BASE_ADDR);
+ Printf("=\"%s\"", textToStr(cclass(c).text));
break;
case INSTANCE:
- Printf("instance(%d)", c - INSTMIN);
+ Printf("instance(%d)", c - INST_BASE_ADDR);
break;
case NAME:
- Printf("name(%d)", c-NAMEMIN);
- if (NAMEMIN <= c && c < nameHw) {
- Printf("=\"%s\"", textToStr(name(c).text));
- }
+ Printf("name(%d)", c-NAME_BASE_ADDR);
+ Printf("=\"%s\"", textToStr(name(c).text));
break;
case TYCON:
- Printf("tycon(%d)", c-TYCMIN);
- if (TYCMIN <= c && c < tyconHw)
- Printf("=\"%s\"", textToStr(tycon(c).text));
+ Printf("tycon(%d)", c-TYCON_BASE_ADDR);
+ Printf("=\"%s\"", textToStr(tycon(c).text));
break;
case MODULE:
- Printf("module(%d)", c - MODMIN);
+ Printf("module(%d)", c - MODULE_BASE_ADDR);
+ Printf("=\"%s\"", textToStr(module(c).text));
break;
case OFFSET:
Printf("Offset %d", offsetOf(c));
break;
case TUPLE:
- Printf("Tuple %d", tupleOf(c));
+ Printf("%s", textToStr(ghcTupleText(c)));
break;
case POLYTYPE:
Printf("Polytype");
print(snd(c),depth-1);
break;
+ case QUAL:
+ Printf("Qualtype");
+ print(snd(c),depth-1);
+ break;
case RANK2:
Printf("Rank2(");
if (isPair(snd(c)) && isInt(fst(snd(c)))) {
}
Printf(")");
break;
- case NIL:
- Printf("NIL");
- break;
case WILDCARD:
Printf("_");
break;
case CONOPCELL:
Printf("{id %s}",textToStr(textOf(c)));
break;
+#if IPARAM
+ case IPCELL :
+ Printf("{ip %s}",textToStr(textOf(c)));
+ break;
+ case IPVAR :
+ Printf("?%s",textToStr(textOf(c)));
+ break;
+#endif
case QUALIDENT:
Printf("{qid %s.%s}",textToStr(qmodOf(c)),textToStr(qtextOf(c)));
break;
print(snd(snd(c)),depth-1);
Putchar(')');
break;
+ case DICTAP:
+ Printf("(DICTAP,");
+ print(snd(c),depth-1);
+ Putchar(')');
+ break;
+ case UNBOXEDTUP:
+ Printf("(UNBOXEDTUP,");
+ print(snd(c),depth-1);
+ Putchar(')');
+ break;
+ case ZTUP2:
+ Printf("<ZPair ");
+ print(zfst(c),depth-1);
+ Putchar(' ');
+ print(zsnd(c),depth-1);
+ Putchar('>');
+ break;
+ case ZTUP3:
+ Printf("<ZTriple ");
+ print(zfst3(c),depth-1);
+ Putchar(' ');
+ print(zsnd3(c),depth-1);
+ Putchar(' ');
+ print(zthd3(c),depth-1);
+ Putchar('>');
+ break;
+ case BANG:
+ Printf("(BANG,");
+ print(snd(c),depth-1);
+ Putchar(')');
+ break;
default:
- if (isBoxTag(tag)) {
- Printf("Tag(%d)=%d", c, tag);
- } else if (isConTag(tag)) {
- Printf("%d@(%d,",c,tag);
+ if (isTagNonPtr(tag)) {
+ Printf("(TagNP=%d,%d)", c, tag);
+ } else if (isTagPtr(tag)) {
+ Printf("(TagP=%d,",tag);
print(snd(c), depth-1);
Putchar(')');
break;
}
FlushStdout();
}
-#endif
+
Bool isVar(c) /* is cell a VARIDCELL/VAROPCELL ? */
Cell c; { /* also recognises DICTVAR cells */
return isPair(c) && (fst(c)==QUALIDENT);
}
+Bool eqQualIdent ( QualId c1, QualId c2 )
+{
+ assert(isQualIdent(c1));
+ if (!isQualIdent(c2)) {
+ assert(isQualIdent(c2));
+ }
+ return qmodOf(c1)==qmodOf(c2) &&
+ qtextOf(c1)==qtextOf(c2);
+}
+
Bool isIdent(c) /* is cell an identifier? */
Cell c; {
if (!isPair(c)) return FALSE;
Int intOf(c) /* find integer value of cell? */
Cell c; {
assert(isInt(c));
- return isPair(c) ? (Int)(snd(c)) : (Int)(c-INTZERO);
+ return isPair(c) ? (Int)(snd(c)) : (Int)(c-SMALL_INT_ZERO);
}
Cell mkInt(n) /* make cell representing integer */
Int n; {
- return (MINSMALLINT <= n && n <= MAXSMALLINT)
- ? INTZERO+n
+ return (SMALL_INT_MIN <= SMALL_INT_ZERO+n &&
+ SMALL_INT_ZERO+n <= SMALL_INT_MAX)
+ ? SMALL_INT_ZERO+n
: pair(INTCELL,n);
}
-#if BIGNUMS
-Bool isBignum(c) /* cell holds bignum value? */
-Cell c; {
- return c==ZERONUM || (isPair(c) && (fst(c)==POSNUM || fst(c)==NEGNUM));
-}
-#endif
+#if SIZEOF_VOID_P == SIZEOF_INT
-#if SIZEOF_INTP == SIZEOF_INT
typedef union {Int i; Ptr p;} IntOrPtr;
-Cell mkPtr(p)
+
+Cell mkAddr(p)
Ptr p;
{
IntOrPtr x;
x.p = p;
- return pair(PTRCELL,x.i);
+ return pair(ADDRCELL,x.i);
}
-Ptr ptrOf(c)
+Ptr addrOf(c)
Cell c;
{
IntOrPtr x;
- assert(fst(c) == PTRCELL);
+ assert(fst(c) == ADDRCELL);
+ x.i = snd(c);
+ return x.p;
+}
+
+Cell mkMPtr(p)
+Ptr p;
+{
+ IntOrPtr x;
+ x.p = p;
+ return pair(MPTRCELL,x.i);
+}
+
+Ptr mptrOf(c)
+Cell c;
+{
+ IntOrPtr x;
+ assert(fst(c) == MPTRCELL);
+ x.i = snd(c);
+ return x.p;
+}
+
+Cell mkCPtr(p)
+Ptr p;
+{
+ IntOrPtr x;
+ x.p = p;
+ return pair(CPTRCELL,x.i);
+}
+
+Ptr cptrOf(c)
+Cell c;
+{
+ IntOrPtr x;
+ assert(fst(c) == CPTRCELL);
x.i = snd(c);
return x.p;
}
-#elif SIZEOF_INTP == 2*SIZEOF_INT
+
+#elif SIZEOF_VOID_P == 2*SIZEOF_INT
+
typedef union {struct {Int i1; Int i2;} i; Ptr p;} IntOrPtr;
+
Cell mkPtr(p)
Ptr p;
{
x.i.i2 = intOf(snd(snd(c)));
return x.p;
}
-#else
-#warning "type Addr not supported on this architecture - don't use it"
-Cell mkPtr(p)
+
+Cell mkCPtr(p)
Ptr p;
{
- ERRMSG(0) "mkPtr: type Addr not supported on this architecture"
- EEND;
+ IntOrPtr x;
+ x.p = p;
+ return pair(CPTRCELL,pair(mkInt(x.i.i1),mkInt(x.i.i2)));
}
-Ptr ptrOf(c)
+Ptr cptrOf(c)
Cell c;
{
- ERRMSG(0) "ptrOf: type Addr not supported on this architecture"
- EEND;
+ IntOrPtr x;
+ assert(fst(c) == CPTRCELL);
+ x.i.i1 = intOf(fst(snd(c)));
+ x.i.i2 = intOf(snd(snd(c)));
+ return x.p;
}
+
+#else
+
+#error "Can't implement mkPtr/ptrOf on this architecture."
+
#endif
+
String stringNegate( s )
String s;
{
return ys;
}
-#if 0
-List delete(xs,y) /* Delete first use of y from xs */
-List xs;
-Cell y; {
- if (isNull(xs)) {
- return xs;
- } else if (hs(xs) == y) {
- return tl(xs);
- } else {
- tl(xs) = delete(tl(xs),y);
- return xs;
- }
-}
-
-List minus(xs,ys) /* Delete members of ys from xs */
-List xs, ys; {
- mapAccum(delete,xs,ys);
- return xs;
-}
-#endif
+QualId qualidIsMember ( QualId q, List xs )
+{
+ for (; nonNull(xs); xs=tl(xs)) {
+ if (eqQualIdent(q, hd(xs)))
+ return hd(xs);
+ }
+ return NIL;
+}
Cell varIsMember(t,xs) /* Test if variable is a member of */
Text t; /* given list of variables */
List xs; {
+ assert(isText(t) || isInventedVar(t) || isInventedDictVar(t));
for (; nonNull(xs); xs=tl(xs))
if (t==textOf(hd(xs)))
return hd(xs);
return ys;
}
-List splitAt(n,xs) /* drop n things from front of list*/
+List splitAt(n,xs) /* drop n things from front of list*/
Int n;
List xs; {
for(; n>0; --n) {
return xs;
}
-Cell nth(n,xs) /* extract n'th element of list */
+Cell nth(n,xs) /* extract n'th element of list */
Int n;
List xs; {
for(; n>0 && nonNull(xs); --n, xs=tl(xs)) {
return xs; /* here if element not found */
}
+List nubList(xs) /* nuke dups in list */
+List xs; { /* non destructive */
+ List outs = NIL;
+ for (; nonNull(xs); xs=tl(xs))
+ if (isNull(cellIsMember(hd(xs),outs)))
+ outs = cons(hd(xs),outs);
+ outs = rev(outs);
+ return outs;
+}
+
+
+/* --------------------------------------------------------------------------
+ * Tagged tuples (experimental)
+ * ------------------------------------------------------------------------*/
+
+static void z_tag_check ( Cell x, int tag, char* caller )
+{
+ char buf[100];
+ if (isNull(x)) {
+ sprintf(buf,"z_tag_check(%s): null\n", caller);
+ internal(buf);
+ }
+ if (whatIs(x) != tag) {
+ sprintf(buf,
+ "z_tag_check(%s): tag was %d, expected %d\n",
+ caller, whatIs(x), tag );
+ internal(buf);
+ }
+}
+
+Cell zpair ( Cell x1, Cell x2 )
+{ return ap(ZTUP2,ap(x1,x2)); }
+Cell zfst ( Cell zpair )
+{ z_tag_check(zpair,ZTUP2,"zfst"); return fst( snd(zpair) ); }
+Cell zsnd ( Cell zpair )
+{ z_tag_check(zpair,ZTUP2,"zsnd"); return snd( snd(zpair) ); }
+
+Cell ztriple ( Cell x1, Cell x2, Cell x3 )
+{ return ap(ZTUP3,ap(x1,ap(x2,x3))); }
+Cell zfst3 ( Cell zpair )
+{ z_tag_check(zpair,ZTUP3,"zfst3"); return fst( snd(zpair) ); }
+Cell zsnd3 ( Cell zpair )
+{ z_tag_check(zpair,ZTUP3,"zsnd3"); return fst(snd( snd(zpair) )); }
+Cell zthd3 ( Cell zpair )
+{ z_tag_check(zpair,ZTUP3,"zthd3"); return snd(snd( snd(zpair) )); }
+
+Cell z4ble ( Cell x1, Cell x2, Cell x3, Cell x4 )
+{ return ap(ZTUP4,ap(x1,ap(x2,ap(x3,x4)))); }
+Cell zsel14 ( Cell zpair )
+{ z_tag_check(zpair,ZTUP4,"zsel14"); return fst( snd(zpair) ); }
+Cell zsel24 ( Cell zpair )
+{ z_tag_check(zpair,ZTUP4,"zsel24"); return fst(snd( snd(zpair) )); }
+Cell zsel34 ( Cell zpair )
+{ z_tag_check(zpair,ZTUP4,"zsel34"); return fst(snd(snd( snd(zpair) ))); }
+Cell zsel44 ( Cell zpair )
+{ z_tag_check(zpair,ZTUP4,"zsel44"); return snd(snd(snd( snd(zpair) ))); }
+
+Cell z5ble ( Cell x1, Cell x2, Cell x3, Cell x4, Cell x5 )
+{ return ap(ZTUP5,ap(x1,ap(x2,ap(x3,ap(x4,x5))))); }
+Cell zsel15 ( Cell zpair )
+{ z_tag_check(zpair,ZTUP5,"zsel15"); return fst( snd(zpair) ); }
+Cell zsel25 ( Cell zpair )
+{ z_tag_check(zpair,ZTUP5,"zsel25"); return fst(snd( snd(zpair) )); }
+Cell zsel35 ( Cell zpair )
+{ z_tag_check(zpair,ZTUP5,"zsel35"); return fst(snd(snd( snd(zpair) ))); }
+Cell zsel45 ( Cell zpair )
+{ z_tag_check(zpair,ZTUP5,"zsel45"); return fst(snd(snd(snd( snd(zpair) )))); }
+Cell zsel55 ( Cell zpair )
+{ z_tag_check(zpair,ZTUP5,"zsel55"); return snd(snd(snd(snd( snd(zpair) )))); }
+
+
+Cell unap ( int tag, Cell c )
+{
+ char buf[100];
+ if (whatIs(c) != tag) {
+ sprintf(buf, "unap: specified %d, actual %d\n",
+ tag, whatIs(c) );
+ internal(buf);
+ }
+ return snd(c);
+}
+
/* --------------------------------------------------------------------------
* Operations on applications:
* ------------------------------------------------------------------------*/
}
/* --------------------------------------------------------------------------
- * Handle operations:
+ * debugging support
* ------------------------------------------------------------------------*/
-#if IO_HANDLES
-struct strHandle DEFTABLE(handles,NUM_HANDLES);
-
-Cell openHandle(s,hmode,binary) /* open handle to file named s in */
-String s; /* the specified hmode */
-Int hmode;
-Bool binary; {
- Int i;
-
- for (i=0; i<NUM_HANDLES && nonNull(handles[i].hcell); ++i)
- ; /* Search for unused handle*/
- if (i>=NUM_HANDLES) { /* If at first we don't */
- garbageCollect(); /* succeed, garbage collect*/
- for (i=0; i<NUM_HANDLES && nonNull(handles[i].hcell); ++i)
- ; /* and try again ... */
- }
- if (i>=NUM_HANDLES) { /* ... before we give up */
- ERRMSG(0) "Too many handles open; cannot open \"%s\"", s
- EEND;
- }
- else { /* prepare to open file */
- String stmode;
- if (binary) {
- stmode = (hmode&HAPPEND) ? "ab+" :
- (hmode&HWRITE) ? "wb+" :
- (hmode&HREAD) ? "rb" : (String)0;
- } else {
- stmode = (hmode&HAPPEND) ? "a+" :
- (hmode&HWRITE) ? "w+" :
- (hmode&HREAD) ? "r" : (String)0;
- }
- if (stmode && (handles[i].hfp=fopen(s,stmode))) {
- handles[i].hmode = hmode;
- return (handles[i].hcell = ap(HANDCELL,i));
- }
- }
- return NIL;
-}
-
-static Void local freeHandle(n) /* release handle storage when no */
-Int n; { /* heap references to it remain */
- if (0<=n && n<NUM_HANDLES && nonNull(handles[n].hcell)) {
- if (n>HSTDERR && handles[n].hmode!=HCLOSED && handles[n].hfp) {
- fclose(handles[n].hfp);
- handles[n].hfp = 0;
- }
- fst(handles[n].hcell) = snd(handles[n].hcell) = NIL;
- handles[n].hcell = NIL;
- }
+/* Given the address of an info table, find the constructor/tuple
+ that it belongs to, and return the name. Only needed for debugging.
+*/
+char* lookupHugsItblName ( void* v )
+{
+ int i;
+ for (i = TYCON_BASE_ADDR;
+ i < TYCON_BASE_ADDR+tabTyconSz; ++i) {
+ if (tabTycon[i-TYCON_BASE_ADDR].inUse
+ && tycon(i).itbl == v)
+ return textToStr(tycon(i).text);
+ }
+ for (i = NAME_BASE_ADDR;
+ i < NAME_BASE_ADDR+tabNameSz; ++i) {
+ if (tabName[i-NAME_BASE_ADDR].inUse
+ && name(i).itbl == v)
+ return textToStr(name(i).text);
+ }
+ return NULL;
+}
+
+static String maybeModuleStr ( Module m )
+{
+ if (isModule(m)) return textToStr(module(m).text); else return "??";
}
-#endif
-
-#if GC_MALLOCPTRS
-/* --------------------------------------------------------------------------
- * Malloc Ptrs:
- * ------------------------------------------------------------------------*/
-
-struct strMallocPtr mallocPtrs[NUM_MALLOCPTRS];
-/* It might GC (because it uses a table not a list) which will trash any
- * unstable pointers.
- * (It happens that we never use it with unstable pointers.)
- */
-Cell mkMallocPtr(ptr,cleanup) /* create a new malloc pointer */
-Ptr ptr;
-Void (*cleanup) Args((Ptr)); {
- Int i;
- for (i=0; i<NUM_MALLOCPTRS && mallocPtrs[i].refCount!=0; ++i)
- ; /* Search for unused entry */
- if (i>=NUM_MALLOCPTRS) { /* If at first we don't */
- garbageCollect(); /* succeed, garbage collect*/
- for (i=0; i<NUM_MALLOCPTRS && mallocPtrs[i].refCount!=0; ++i)
- ; /* and try again ... */
- }
- if (i>=NUM_MALLOCPTRS) { /* ... before we give up */
- ERRMSG(0) "Too many ForeignObjs open"
- EEND;
- }
- mallocPtrs[i].ptr = ptr;
- mallocPtrs[i].cleanup = cleanup;
- mallocPtrs[i].refCount = 1;
- return (mallocPtrs[i].mpcell = ap(MPCELL,i));
+static String maybeNameStr ( Name n )
+{
+ if (isName(n)) return textToStr(name(n).text); else return "??";
}
-Void incMallocPtrRefCnt(n,i) /* change ref count of MallocPtr */
-Int n;
-Int i; {
- if (!(0<=n && n<NUM_MALLOCPTRS && mallocPtrs[n].refCount > 0))
- internal("freeMallocPtr");
- mallocPtrs[n].refCount += i;
- if (mallocPtrs[n].refCount <= 0) {
- mallocPtrs[n].cleanup(mallocPtrs[n].ptr);
-
- mallocPtrs[n].ptr = 0;
- mallocPtrs[n].cleanup = 0;
- mallocPtrs[n].refCount = 0;
- mallocPtrs[n].mpcell = NIL;
- }
+static String maybeTyconStr ( Tycon t )
+{
+ if (isTycon(t)) return textToStr(tycon(t).text); else return "??";
}
-#endif /* GC_MALLOCPTRS */
-
-/* --------------------------------------------------------------------------
- * Stable pointers
- * This is a mechanism that allows the C world to manipulate pointers into the
- * Haskell heap without having to worry that the garbage collector is going
- * to delete it or move it around.
- * The implementation and interface is based on my implementation in
- * GHC - but, at least for now, is simplified by using a fixed size
- * table of stable pointers.
- * ------------------------------------------------------------------------*/
-
-#if GC_STABLEPTRS
-
-/* Each entry in the stable pointer table is either a heap pointer
- * or is not currently allocated.
- * Unallocated entries are threaded together into a freelist.
- * The last entry in the list contains the Cell 0; all other values
- * contain a Cell whose value is the next free stable ptr in the list.
- * It follows that stable pointers are strictly positive (>0).
- */
-static Cell stablePtrTable[NUM_STABLEPTRS];
-static Int sptFreeList;
-#define SPT(sp) stablePtrTable[(sp)-1]
-static Void local resetStablePtrs() {
- Int i;
- /* It would be easier to build the free list in the other direction
- * but, when debugging, it's way easier to understand if the first
- * pointer allocated is "1".
- */
- for(i=1; i < NUM_STABLEPTRS; ++i)
- SPT(i) = i+1;
- SPT(NUM_STABLEPTRS) = 0;
- sptFreeList = 1;
+static String maybeClassStr ( Class c )
+{
+ if (isClass(c)) return textToStr(cclass(c).text); else return "??";
}
-Int mkStablePtr(c) /* Create a stable pointer */
-Cell c; {
- Int i = sptFreeList;
- if (i == 0)
- return 0;
- sptFreeList = SPT(i);
- SPT(i) = c;
- return i;
-}
-
-Cell derefStablePtr(p) /* Dereference a stable pointer */
-Int p; {
- if (!(1 <= p && p <= NUM_STABLEPTRS)) {
- internal("derefStablePtr");
- }
- return SPT(p);
+static String maybeText ( Text t )
+{
+ if (isNull(t)) return "(nil)";
+ return textToStr(t);
}
-Void freeStablePtr(i) /* Free a stable pointer */
-Int i; {
- SPT(i) = sptFreeList;
- sptFreeList = i;
+static void print100 ( Int x )
+{
+ print ( x, 100); printf("\n");
}
-#undef SPT
-#endif /* GC_STABLEPTRS */
-
-/* --------------------------------------------------------------------------
- * plugin support
- * ------------------------------------------------------------------------*/
-
-/*---------------------------------------------------------------------------
- * GreenCard entry points
- *
- * GreenCard generated code accesses Hugs data structures and functions
- * (only) via these functions (which are stored in the virtual function
- * table hugsAPI1.
- *-------------------------------------------------------------------------*/
-
-#if GREENCARD
-
-static Cell makeTuple Args((Int));
-static Cell makeInt Args((Int));
-static Cell makeChar Args((Char));
-static Char CharOf Args((Cell));
-static Cell makeFloat Args((FloatPro));
-static Void* derefMallocPtr Args((Cell));
-static Cell* Fst Args((Cell));
-static Cell* Snd Args((Cell));
-
-static Cell makeTuple(n) Int n; { return mkTuple(n); }
-static Cell makeInt(n) Int n; { return mkInt(n); }
-static Cell makeChar(n) Char n; { return mkChar(n); }
-static Char CharOf(n) Cell n; { return charOf(n); }
-static Cell makeFloat(n) FloatPro n; { return mkFloat(n); }
-static Void* derefMallocPtr(n) Cell n; { return derefMP(n); }
-static Cell* Fst(n) Cell n; { return (Cell*)&fst(n); }
-static Cell* Snd(n) Cell n; { return (Cell*)&snd(n); }
-
-HugsAPI1* hugsAPI1() {
- static HugsAPI1 api;
- static Bool initialised = FALSE;
- if (!initialised) {
- api.nameTrue = nameTrue;
- api.nameFalse = nameFalse;
- api.nameNil = nameNil;
- api.nameCons = nameCons;
- api.nameJust = nameJust;
- api.nameNothing = nameNothing;
- api.nameLeft = nameLeft;
- api.nameRight = nameRight;
- api.nameUnit = nameUnit;
- api.nameIORun = nameIORun;
- api.makeInt = makeInt;
- api.makeChar = makeChar;
- api.CharOf = CharOf;
- api.makeFloat = makeFloat;
- api.makeTuple = makeTuple;
- api.pair = pair;
- api.mkMallocPtr = mkMallocPtr;
- api.derefMallocPtr = derefMallocPtr;
- api.mkStablePtr = mkStablePtr;
- api.derefStablePtr = derefStablePtr;
- api.freeStablePtr = freeStablePtr;
- api.eval = eval;
- api.evalWithNoError = evalWithNoError;
- api.evalFails = evalFails;
- api.whnfArgs = &whnfArgs;
- api.whnfHead = &whnfHead;
- api.whnfInt = &whnfInt;
- api.whnfFloat = &whnfFloat;
- api.garbageCollect = garbageCollect;
- api.stackOverflow = hugsStackOverflow;
- api.internal = internal;
- api.registerPrims = registerPrims;
- api.addPrimCfun = addPrimCfun;
- api.inventText = inventText;
- api.Fst = Fst;
- api.Snd = Snd;
- api.cellStack = cellStack;
- api.sp = &sp;
- }
- return &api;
+void dumpTycon ( Int t )
+{
+ if (isTycon(TYCON_BASE_ADDR+t) && !isTycon(t)) t += TYCON_BASE_ADDR;
+ if (!isTycon(t)) {
+ printf ( "dumpTycon %d: not a tycon\n", t);
+ return;
+ }
+ printf ( "{\n" );
+ printf ( " text: %s\n", textToStr(tycon(t).text) );
+ printf ( " line: %d\n", tycon(t).line );
+ printf ( " mod: %s\n", maybeModuleStr(tycon(t).mod));
+ printf ( " tuple: %d\n", tycon(t).tuple);
+ printf ( " arity: %d\n", tycon(t).arity);
+ printf ( " kind: "); print100(tycon(t).kind);
+ printf ( " what: %d\n", tycon(t).what);
+ printf ( " defn: "); print100(tycon(t).defn);
+ printf ( " cToT: %d %s\n", tycon(t).conToTag,
+ maybeNameStr(tycon(t).conToTag));
+ printf ( " tToC: %d %s\n", tycon(t).tagToCon,
+ maybeNameStr(tycon(t).tagToCon));
+ printf ( " itbl: %p\n", tycon(t).itbl);
+ printf ( " nextTH: %d %s\n", tycon(t).nextTyconHash,
+ maybeTyconStr(tycon(t).nextTyconHash));
+ printf ( "}\n" );
+}
+
+void dumpName ( Int n )
+{
+ if (isName(NAME_BASE_ADDR+n) && !isName(n)) n += NAME_BASE_ADDR;
+ if (!isName(n)) {
+ printf ( "dumpName %d: not a name\n", n);
+ return;
+ }
+ printf ( "{\n" );
+ printf ( " text: %s\n", textToStr(name(n).text) );
+ printf ( " line: %d\n", name(n).line );
+ printf ( " mod: %s\n", maybeModuleStr(name(n).mod));
+ printf ( " syntax: %d\n", name(n).syntax );
+ printf ( " parent: %d\n", name(n).parent );
+ printf ( " arity: %d\n", name(n).arity );
+ printf ( " number: %d\n", name(n).number );
+ printf ( " type: "); print100(name(n).type);
+ printf ( " defn: %d\n", name(n).defn );
+ printf ( " cconv: %d\n", name(n).callconv );
+ printf ( " primop: %p\n", name(n).primop );
+ printf ( " itbl: %p\n", name(n).itbl );
+ printf ( " closure: %d\n", name(n).closure );
+ printf ( " nextNH: %d\n", name(n).nextNameHash );
+ printf ( "}\n" );
+}
+
+
+void dumpClass ( Int c )
+{
+ if (isClass(CCLASS_BASE_ADDR+c) && !isClass(c)) c += CCLASS_BASE_ADDR;
+ if (!isClass(c)) {
+ printf ( "dumpClass %d: not a class\n", c);
+ return;
+ }
+ printf ( "{\n" );
+ printf ( " text: %s\n", textToStr(cclass(c).text) );
+ printf ( " line: %d\n", cclass(c).line );
+ printf ( " mod: %s\n", maybeModuleStr(cclass(c).mod));
+ printf ( " arity: %d\n", cclass(c).arity );
+ printf ( " level: %d\n", cclass(c).level );
+ printf ( " kinds: "); print100( cclass(c).kinds );
+ printf ( " fds: %d\n", cclass(c).fds );
+ printf ( " xfds: %d\n", cclass(c).xfds );
+ printf ( " head: "); print100( cclass(c).head );
+ printf ( " dcon: "); print100( cclass(c).dcon );
+ printf ( " supers: "); print100( cclass(c).supers );
+ printf ( " #supers: %d\n", cclass(c).numSupers );
+ printf ( " dsels: "); print100( cclass(c).dsels );
+ printf ( " members: "); print100( cclass(c).members );
+ printf ( "#members: %d\n", cclass(c).numMembers );
+ printf ( "defaults: "); print100( cclass(c).defaults );
+ printf ( " insts: "); print100( cclass(c).instances );
+ printf ( "}\n" );
+}
+
+
+void dumpInst ( Int i )
+{
+ if (isInst(INST_BASE_ADDR+i) && !isInst(i)) i += INST_BASE_ADDR;
+ if (!isInst(i)) {
+ printf ( "dumpInst %d: not an instance\n", i);
+ return;
+ }
+ printf ( "{\n" );
+ printf ( " class: %s\n", maybeClassStr(inst(i).c) );
+ printf ( " line: %d\n", inst(i).line );
+ printf ( " mod: %s\n", maybeModuleStr(inst(i).mod));
+ printf ( " kinds: "); print100( inst(i).kinds );
+ printf ( " head: "); print100( inst(i).head );
+ printf ( " specs: "); print100( inst(i).specifics );
+ printf ( " #specs: %d\n", inst(i).numSpecifics );
+ printf ( " impls: "); print100( inst(i).implements );
+ printf ( " builder: %s\n", maybeNameStr( inst(i).builder ) );
+ printf ( "}\n" );
}
-#endif /* GREENCARD */
-
/* --------------------------------------------------------------------------
* storage control:
* ------------------------------------------------------------------------*/
-#if DYN_TABLES
-static void far* safeFarCalloc Args((Int,Int));
-static void far* safeFarCalloc(n,s) /* allocate table storage and check*/
-Int n, s; { /* for non-null return */
- void far* tab = farCalloc(n,s);
- if (tab==0) {
- ERRMSG(0) "Cannot allocate run-time tables"
- EEND;
- }
- return tab;
-}
-#define TABALLOC(v,t,n) v=(t far*)safeFarCalloc(n,sizeof(t));
-#else
-#define TABALLOC(v,t,n)
-#endif
-
Void storage(what)
Int what; {
Int i;
switch (what) {
+ case POSTPREL: break;
+
case RESET : clearStack();
/* the next 2 statements are particularly important
*/
heapTopFst = heapFst + heapSize;
heapTopSnd = heapSnd + heapSize;
-#if PROFILING
- heapTopThd = heapThd + heapSize;
- if (profile) {
- garbageCollect();
- fclose(profile);
-#if HAVE_HP2PS
- system("hp2ps profile.hp");
-#endif
- profile = 0;
- }
-#endif
-#if IO_HANDLES
- handles[HSTDIN].hmode = HREAD;
- handles[HSTDOUT].hmode = HAPPEND;
- handles[HSTDERR].hmode = HAPPEND;
-#endif
-#if GC_MALLOCPTRS
- for (i=0; i<NUM_MALLOCPTRS; i++)
- mallocPtrs[i].mpcell = NIL;
-#endif
-#if !HSCRIPT
-#if GC_STABLEPTRS
- resetStablePtrs();
-#endif
-#endif
consGC = TRUE;
lsave = NIL;
rsave = NIL;
if (isNull(lastExprSaved))
- savedText = NUM_TEXT;
+ savedText = TEXT_SIZE;
break;
case MARK :
start();
- for (i=NAMEMIN; i<nameHw; ++i) {
- mark(name(i).parent);
- mark(name(i).defn);
- mark(name(i).stgVar);
- mark(name(i).type);
+ for (i = NAME_BASE_ADDR;
+ i < NAME_BASE_ADDR+tabNameSz; ++i) {
+ if (tabName[i-NAME_BASE_ADDR].inUse) {
+ mark(name(i).parent);
+ mark(name(i).type);
+ mark(name(i).defn);
+ mark(name(i).closure);
+ }
}
end("Names", nameHw-NAMEMIN);
-#if !IGNORE_MODULES
start();
- for (i=MODMIN; i<moduleHw; ++i) {
- mark(module(i).tycons);
- mark(module(i).names);
- mark(module(i).classes);
- mark(module(i).exports);
- mark(module(i).qualImports);
+ for (i = MODULE_BASE_ADDR;
+ i < MODULE_BASE_ADDR+tabModuleSz; ++i) {
+ if (tabModule[i-MODULE_BASE_ADDR].inUse) {
+ mark(module(i).tycons);
+ mark(module(i).names);
+ mark(module(i).classes);
+ mark(module(i).exports);
+ mark(module(i).qualImports);
+ mark(module(i).codeList);
+ mark(module(i).tree);
+ mark(module(i).uses);
+ mark(module(i).objectExtraNames);
+ }
}
+ mark(moduleGraph);
+ mark(prelModules);
+ mark(targetModules);
end("Modules", moduleHw-MODMIN);
-#endif
start();
- for (i=TYCMIN; i<tyconHw; ++i) {
- mark(tycon(i).defn);
- mark(tycon(i).kind);
- mark(tycon(i).what);
+ for (i = TYCON_BASE_ADDR;
+ i < TYCON_BASE_ADDR+tabTyconSz; ++i) {
+ if (tabTycon[i-TYCON_BASE_ADDR].inUse) {
+ mark(tycon(i).kind);
+ mark(tycon(i).what);
+ mark(tycon(i).defn);
+ mark(tycon(i).closure);
+ }
}
end("Type constructors", tyconHw-TYCMIN);
start();
- for (i=CLASSMIN; i<classHw; ++i) {
- mark(cclass(i).head);
- mark(cclass(i).kinds);
- mark(cclass(i).dsels);
- mark(cclass(i).supers);
- mark(cclass(i).members);
- mark(cclass(i).defaults);
- mark(cclass(i).instances);
+ for (i = CCLASS_BASE_ADDR;
+ i < CCLASS_BASE_ADDR+tabClassSz; ++i) {
+ if (tabClass[i-CCLASS_BASE_ADDR].inUse) {
+ mark(cclass(i).kinds);
+ mark(cclass(i).fds);
+ mark(cclass(i).xfds);
+ mark(cclass(i).head);
+ mark(cclass(i).supers);
+ mark(cclass(i).dsels);
+ mark(cclass(i).members);
+ mark(cclass(i).defaults);
+ mark(cclass(i).instances);
+ }
}
mark(classes);
end("Classes", classHw-CLASSMIN);
start();
- for (i=INSTMIN; i<instHw; ++i) {
- mark(inst(i).head);
- mark(inst(i).kinds);
- mark(inst(i).specifics);
- mark(inst(i).implements);
+ for (i = INST_BASE_ADDR;
+ i < INST_BASE_ADDR+tabInstSz; ++i) {
+ if (tabInst[i-INST_BASE_ADDR].inUse) {
+ mark(inst(i).kinds);
+ mark(inst(i).head);
+ mark(inst(i).specifics);
+ mark(inst(i).implements);
+ }
}
end("Instances", instHw-INSTMIN);
mark(lsave);
mark(rsave);
end("Last expression", 3);
-#if IO_HANDLES
- start();
- mark(handles[HSTDIN].hcell);
- mark(handles[HSTDOUT].hcell);
- mark(handles[HSTDERR].hcell);
- end("Standard handles", 3);
-#endif
-
-#if GC_STABLEPTRS
- start();
- for (i=0; i<NUM_STABLEPTRS; ++i)
- mark(stablePtrTable[i]);
- end("Stable pointers", NUM_STABLEPTRS);
-#endif
-
-#if GC_WEAKPTRS
- mark(finalizers);
-#endif
if (consGC) {
start();
break;
- case INSTALL : heapFst = heapAlloc(heapSize);
+ case PREPREL : heapFst = heapAlloc(heapSize);
heapSnd = heapAlloc(heapSize);
if (heapFst==(Heap)0 || heapSnd==(Heap)0) {
heapTopFst = heapFst + heapSize;
heapTopSnd = heapSnd + heapSize;
-#if PROFILING
- heapThd = heapAlloc(heapSize);
- if (heapThd==(Heap)0) {
- ERRMSG(0) "Cannot allocate profiler storage space"
- EEND;
- }
- heapTopThd = heapThd + heapSize;
- profile = 0;
- if (0 == profInterval)
- profInterval = heapSize / DEF_PROFINTDIV;
-#endif
for (i=1; i<heapSize; ++i) {
fst(-i) = FREECELL;
snd(-i) = -(i+1);
EEND;
}
- TABALLOC(text, char, NUM_TEXT)
- TABALLOC(tyconHash, Tycon, TYCONHSZ)
- TABALLOC(tabTycon, struct strTycon, NUM_TYCON)
- TABALLOC(nameHash, Name, NAMEHSZ)
- TABALLOC(tabName, struct strName, NUM_NAME)
- TABALLOC(tabClass, struct strClass, NUM_CLASSES)
- TABALLOC(cellStack, Cell, NUM_STACK)
- TABALLOC(tabModule, struct Module, NUM_SCRIPTS)
-#if TREX
- TABALLOC(tabExt, Text, NUM_EXT)
-#endif
clearStack();
-#if IO_HANDLES
- TABALLOC(handles, struct strHandle, NUM_HANDLES)
- for (i=0; i<NUM_HANDLES; i++)
- handles[i].hcell = NIL;
- handles[HSTDIN].hcell = ap(HANDCELL,HSTDIN);
- handles[HSTDIN].hfp = stdin;
- handles[HSTDOUT].hcell = ap(HANDCELL,HSTDOUT);
- handles[HSTDOUT].hfp = stdout;
- handles[HSTDERR].hcell = ap(HANDCELL,HSTDERR);
- handles[HSTDERR].hfp = stderr;
-#endif
-
textHw = 0;
- nextNewText = NUM_TEXT;
- nextNewDText = (-1);
+ nextNewText = INVAR_BASE_ADDR;
+ nextNewDText = INDVAR_BASE_ADDR;
lastExprSaved = NIL;
- savedText = NUM_TEXT;
- for (i=0; i<TEXTHSZ; ++i)
- textHash[i][0] = NOTEXT;
-
-
-#if !IGNORE_MODULES
- moduleHw = MODMIN;
-#endif
-
- tyconHw = TYCMIN;
- for (i=0; i<TYCONHSZ; ++i)
- tyconHash[i] = NIL;
-
-#if GC_WEAKPTRS
- finalizers = NIL;
- liveWeakPtrs = NIL;
-#endif
-
-#if GC_STABLEPTRS
- resetStablePtrs();
-#endif
-
-#if TREX
- extHw = EXTMIN;
-#endif
-
- nameHw = NAMEMIN;
- for (i=0; i<NAMEHSZ; ++i)
- nameHash[i] = NIL;
-
- classHw = CLASSMIN;
-
- instHw = INSTMIN;
-
-#if USE_DICTHW
- dictHw = 0;
-#endif
-
- tabInst = (struct strInst far *)
- farCalloc(NUM_INSTS,sizeof(struct strInst));
-
- if (tabInst==0) {
- ERRMSG(0) "Cannot allocate instance tables"
- EEND;
- }
+ savedText = TEXT_SIZE;
- scriptHw = 0;
+ for (i=0; i<TEXTHSZ; ++i) textHash[i][0] = NOTEXT;
+ for (i=0; i<TYCONHSZ; ++i) tyconHash[RC_T(i)] = NIL;
+ for (i=0; i<NAMEHSZ; ++i) nameHash[RC_N(i)] = NIL;
break;
}
projects / ghc-hetmet.git / blobdiff