* included in the distribution.
*
* $RCSfile: hugs.c,v $
- * $Revision: 1.59 $
- * $Date: 2000/04/05 14:13:58 $
+ * $Revision: 1.67 $
+ * $Date: 2000/04/17 11:39:23 $
* ------------------------------------------------------------------------*/
#include <setjmp.h>
static Void local toggleSet ( Char,Bool );
static Void local togglesIn ( Bool );
static Void local optionInfo ( Void );
-#if USE_REGISTRY
-static String local optionsToStr ( Void );
-#endif
static Void local readOptions ( String );
static Bool local processOption ( String );
static Void local setHeapSize ( String );
static String local strCopy ( String );
static Void local browseit ( Module,String,Bool );
static Void local browse ( Void );
+static void local clearCurrentFile ( void );
+
/* --------------------------------------------------------------------------
* Machine dependent code for Hugs interpreter:
List ifaces_outstanding = NIL;
+static ConId currentModule_failed = NIL; /* Remember failed module from :r */
+
+
/* --------------------------------------------------------------------------
* Hugs entry point:
* Initialization, interpret command line args and read prelude:
* ------------------------------------------------------------------------*/
-static List /*CONID*/ initialize(argc,argv) /* Interpreter initialization */
-Int argc;
-String argv[]; {
- Int i;
- char argv_0_orig[1000];
+static List /*CONID*/ initialize ( Int argc, String argv[] )
+{
+ Int i, j;
List initialModules;
setLastEdit((String)0,0);
#endif
hugsPath = strCopy(HUGSPATH);
readOptions("-p\"%s> \" -r$$");
-#if USE_REGISTRY
- projectPath = strCopy(readRegChildStrings(HKEY_LOCAL_MACHINE,ProjectRoot,
- "HUGSPATH", PATHSEP, ""));
- readOptions(readRegString(HKEY_LOCAL_MACHINE,HugsRoot,"Options",""));
- readOptions(readRegString(HKEY_CURRENT_USER, HugsRoot,"Options",""));
-#endif /* USE_REGISTRY */
readOptions(fromEnv("STGHUGSFLAGS",""));
- strncpy(argv_0_orig,argv[0],1000); /* startupHaskell mangles argv[0] */
- startupHaskell (argc,argv,NULL);
- argc = prog_argc;
- argv = prog_argv;
-
# if DEBUG
{
char exe_name[N_INSTALLDIR + 6];
}
# endif
+ /* startupHaskell extracts args between +RTS ... -RTS, and sets
+ prog_argc/prog_argv to the rest. We want to further process
+ the rest, so we then get hold of them again.
+ */
+ startupHaskell ( argc, argv, NULL );
+ getProgArgv ( &argc, &argv );
+
/* Find out early on if we're in combined mode or not.
- everybody(PREPREL) needs to know this.
+ everybody(PREPREL) needs to know this. Also, establish the
+ heap size;
*/
- for (i=1; i < argc; ++i) {
+ for (i = 1; i < argc; ++i) {
if (strcmp(argv[i], "--")==0) break;
if (strcmp(argv[i], "-c")==0) combined = FALSE;
if (strcmp(argv[i], "+c")==0) combined = TRUE;
+
+ if (strncmp(argv[i],"+h",2)==0 || strncmp(argv[i],"-h",2)==0)
+ setHeapSize(&(argv[i][2]));
}
everybody(PREPREL);
initialModules = NIL;
- for (i=1; i < argc; ++i) { /* process command line arguments */
- if (strcmp(argv[i], "--")==0) break;
- if (argv[i] && argv[i][0]/* workaround for /bin/sh silliness*/
- && !processOption(argv[i])) {
- initialModules
- = cons ( mkCon(findText(argv[i])), initialModules );
+ for (i = 1; i < argc; ++i) { /* process command line arguments */
+ if (strcmp(argv[i], "--")==0)
+ { argv[i] = NULL; break; }
+ if (argv[i] && argv[i][0]/* workaround for /bin/sh silliness*/) {
+ if (!processOption(argv[i]))
+ initialModules
+ = cons ( mkCon(findText(argv[i])), initialModules );
+ argv[i] = NULL;
}
}
" combined mode\n\n" );
}
+ /* slide args back over the deleted ones. */
+ j = 1;
+ for (i = 1; i < argc; i++)
+ if (argv[i])
+ argv[j++] = argv[i];
+
+ argc = j;
+
+ setProgArgv ( argc, argv );
+
initDone = TRUE;
return initialModules;
}
*toggle[i].flag = state;
return;
}
+ clearCurrentFile();
ERRMSG(0) "Unknown toggle `%c'", c
- EEND;
+ EEND_NO_LONGJMP;
}
static Void local togglesIn(state) /* Print current list of toggles in*/
Putchar('\n');
}
-#if USE_REGISTRY
-#define PUTC(c) \
- *next++=(c)
-
-#define PUTS(s) \
- strcpy(next,s); \
- next+=strlen(next)
-
-#define PUTInt(optc,i) \
- sprintf(next,"-%c%d",optc,i); \
- next+=strlen(next)
-
-#define PUTStr(c,s) \
- next=PUTStr_aux(next,c,s)
-
-static String local PUTStr_aux ( String,Char, String));
-
-static String local PUTStr_aux(next,c,s)
-String next;
-Char c;
-String s; {
- if (s) {
- String t = 0;
- sprintf(next,"-%c\"",c);
- next+=strlen(next);
- for(t=s; *t; ++t) {
- PUTS(unlexChar(*t,'"'));
- }
- next+=strlen(next);
- PUTS("\" ");
- }
- return next;
-}
-
-static String local optionsToStr() { /* convert options to string */
- static char buffer[2000];
- String next = buffer;
-
- Int i;
- for (i=0; toggle[i].c; ++i) {
- PUTC(*toggle[i].flag ? '+' : '-');
- PUTC(toggle[i].c);
- PUTC(' ');
- }
- PUTS(haskell98 ? "+98 " : "-98 ");
- PUTInt('h',hpSize); PUTC(' ');
- PUTStr('p',prompt);
- PUTStr('r',repeatStr);
- PUTStr('P',hugsPath);
- PUTStr('E',hugsEdit);
- PUTInt('c',cutoff); PUTC(' ');
-#if USE_PREPROCESSOR && (defined(HAVE_POPEN) || defined(HAVE__POPEN))
- PUTStr('F',preprocessor);
-#endif
- PUTC('\0');
- return buffer;
-}
-#endif /* USE_REGISTRY */
-
#undef PUTC
#undef PUTS
#undef PUTInt
return TRUE;
#endif
- case 'h' : setHeapSize(s+1);
+ case 'h' : /* don't do anything, since pre-scan of args
+ will have got it already */
return TRUE;
case 'c' : /* don't do anything, since pre-scan of args
hpSize = MAXIMUMHEAP;
if (initDone && hpSize != heapSize) {
/* ToDo: should this use a message box in winhugs? */
-#if USE_REGISTRY
- FPrintf(stderr,"Change to heap size will not take effect until you rerun Hugs\n");
-#else
FPrintf(stderr,"You cannot change heap size from inside Hugs\n");
-#endif
} else {
heapSize = hpSize;
}
do {
if (!processOption(s)) {
ERRMSG(0) "Option string must begin with `+' or `-'"
- EEND;
+ EEND_NO_LONGJMP;
}
} while ((s=readFilename())!=0);
-#if USE_REGISTRY
- writeRegString("Options", optionsToStr());
-#endif
}
else
optionInfo();
String s = readFilename();
if (s && chdir(s)) {
ERRMSG(0) "Unable to change to directory \"%s\"", s
- EEND;
+ EEND_NO_LONGJMP;
}
}
usesT = cons(textOf(hd(u)),usesT);
/* artificially give all modules a dependency on Prelude */
- if (mT != textPrelude && mT != textPrimPrel)
+ if (mT != textPrelude && mT != textPrelPrim)
usesT = cons(textPrelude,usesT);
-
adjList = cons(pair(mT,usesT),adjList);
}
addUnqualImport(zfst(te2),zsnd(te2));
break;
case M_TYCON:
- tyconDefn(zsel14(te2),zsel24(te2),zsel34(te2),zsel44(te2));
+ tyconDefn(intOf(zsel14(te2)),zsel24(te2),zsel34(te2),zsel44(te2));
break;
case M_CLASS:
- classDefn(zsel14(te2),zsel24(te2),zsel34(te2),zsel44(te2));
+ classDefn(intOf(zsel14(te2)),zsel24(te2),zsel34(te2),zsel44(te2));
break;
case M_INST:
- instDefn(zfst3(te2),zsnd3(te2),zthd3(te2));
+ instDefn(intOf(zfst3(te2)),zsnd3(te2),zthd3(te2));
break;
case M_DEFAULT:
- defaultDefn(zfst(te2),zsnd(te2));
+ defaultDefn(intOf(zfst(te2)),zsnd(te2));
break;
case M_FOREIGN_IM:
- foreignImport(zsel15(te2),zsel25(te2),zsel35(te2),
+ foreignImport(intOf(zsel15(te2)),zsel25(te2),zsel35(te2),
zsel45(te2),zsel55(te2));
break;
case M_FOREIGN_EX:
- foreignExport(zsel15(te2),zsel25(te2),zsel35(te2),
+ foreignExport(intOf(zsel15(te2)),zsel25(te2),zsel35(te2),
zsel45(te2),zsel55(te2));
case M_VALUE:
valDefns = cons(te2,valDefns);
internal("parseModuleOrInterface");
}
-
/* Actually do the parsing. */
if (useSource) {
module(mod).srcExt = findText(sExt);
assert(nonNull(m));
if (module(m).mode == FM_SOURCE) {
processModule ( m );
+ module(m).tree = NIL;
} else {
processInterfaces ( singleton(snd(grp)) );
+ m = findModule(textOf(snd(grp)));
+ assert(nonNull(m));
+ module(m).tree = NIL;
}
break;
case GRP_REC:
}
}
processInterfaces ( snd(grp) );
+ for (t = snd(grp); nonNull(t); t=tl(t)) {
+ m = findModule(textOf(hd(t)));
+ assert(nonNull(m));
+ module(m).tree = NIL;
+ }
break;
default:
internal("tryLoadGroup");
}
+/* Refresh the current target modules, and attempt to set the
+ current module to what it was before (ie currentModule):
+ if currentModule_failed is different from currentModule,
+ use that instead
+ if nextCurrMod is non null, try to set it to that instead
+ if the one we're after insn't available, select a target
+ from the end of the module group list.
+*/
static void refreshActions ( ConId nextCurrMod, Bool cleanAfter )
{
List t;
- ConId tryFor = mkCon(module(currentModule).text);
+ ConId tryFor;
+
+ /* Remember what the old current module was. */
+ tryFor = mkCon(module(currentModule).text);
+
+ /* Do the Real Work. */
achieveTargetModules(FALSE);
+
+ /* Remember if the current module was invalidated by this
+ refresh, so later refreshes can attempt to reload it. */
+ if (!elemMG(tryFor))
+ currentModule_failed = tryFor;
+
+ /* If a previous refresh failed to get an old current module,
+ try for that instead. */
+ if (nonNull(currentModule_failed)
+ && textOf(currentModule_failed) != textOf(tryFor)
+ && elemMG(currentModule_failed))
+ tryFor = currentModule_failed;
+ /* If our caller specified a new current module, that overrides
+ all historical settings. */
if (nonNull(nextCurrMod))
tryFor = nextCurrMod;
+ /* Finally, if we can't actually get hold of whatever it was we
+ were after, select something which is possible. */
if (!elemMG(tryFor))
tryFor = selectLatestMG();
+
/* combined mode kludge, to get Prelude rather than PrelHugs */
if (combined && textOf(tryFor)==findText("PrelHugs"))
tryFor = mkCon(findText("Prelude"));
if (cleanAfter) {
- /* delete any targetModules which didn't actually get loaded */
- t = targetModules;
- targetModules = NIL;
- for (; nonNull(t); t=tl(t))
- if (elemMG(hd(t)))
- targetModules = cons(hd(t),targetModules);
+ /* delete any targetModules which didn't actually get loaded */
+ t = targetModules;
+ targetModules = NIL;
+ for (; nonNull(t); t=tl(t))
+ if (elemMG(hd(t)))
+ targetModules = cons(hd(t),targetModules);
}
setCurrModule ( findModule(textOf(tryFor)) );
bd = type;
if (whatIs(bd)==QUAL) {
+ clearCurrentFile();
ERRMSG(0) "Unresolved overloading" ETHEN
ERRTEXT "\n*** Type : " ETHEN ERRTYPE(type);
ERRTEXT "\n*** Expression : " ETHEN ERREXPR(inputExpr);
} else {
Cell d = provePred(ks,NIL,ap(classShow,bd));
if (isNull(d)) {
+ clearCurrentFile();
ERRMSG(0) "Cannot find \"show\" function for:" ETHEN
ERRTEXT "\n*** expression : " ETHEN ERREXPR(inputExpr);
ERRTEXT "\n*** of type : " ETHEN ERRTYPE(type);
names = addNamesMatching((String)0,names);
}
if (isNull(names)) { /* Then print them out */
+ clearCurrentFile();
ERRMSG(0) "No names selected"
EEND_NO_LONGJMP;
return;
modConIds = initialize(argc,argv); /* the initial modules to load */
setBreakAction ( HugsIgnoreBreak );
prelOK = loadThePrelude();
- if (combined) everybody(POSTPREL);
if (!prelOK) {
if (autoMain)
exit(1);
}
+ if (combined) everybody(POSTPREL);
loadActions(modConIds);
if (autoMain) {
compiler(what);
codegen(what);
- mark(moduleGraph);
- mark(prelModules);
- mark(targetModules);
- mark(daSccs);
+ if (what == MARK) {
+ mark(moduleGraph);
+ mark(prelModules);
+ mark(targetModules);
+ mark(daSccs);
+ mark(currentModule_failed);
+ }
}
/*-------------------------------------------------------------------------*/
projects / ghc-hetmet.git / blobdiff