1 /* --------------------------------------------------------------------------
2 * Connections between components of the Hugs system
4 * Hugs 98 is Copyright (c) Mark P Jones, Alastair Reid and the Yale
5 * Haskell Group 1994-99, and is distributed as Open Source software
6 * under the Artistic License; see the file "Artistic" that is included
7 * in the distribution for details.
9 * $RCSfile: connect.h,v $
11 * $Date: 1999/10/15 11:02:09 $
12 * ------------------------------------------------------------------------*/
14 /* --------------------------------------------------------------------------
16 * ------------------------------------------------------------------------*/
18 extern Bool haskell98; /* TRUE => Haskell 98 compatibility*/
19 extern Module modulePrelude;
21 /* --------------------------------------------------------------------------
22 * Primitive constructor functions
23 * ------------------------------------------------------------------------*/
25 extern Name nameFalse, nameTrue;
26 extern Name nameNil, nameCons;
27 extern Name nameJust, nameNothing;
28 extern Name nameLeft, nameRight;
31 extern Name nameLT, nameEQ;
33 extern Name nameFst, nameSnd; /* standard combinators */
34 extern Name nameId, nameOtherwise;
35 extern Name nameNegate, nameFlip; /* primitives reqd for parsing */
36 extern Name nameFrom, nameFromThen;
37 extern Name nameFromTo, nameFromThenTo;
38 extern Name nameFatbar, nameFail; /* primitives reqd for translation */
39 extern Name nameIf, nameSel;
40 extern Name nameCompAux;
41 extern Name namePmInt, namePmFlt; /* primitives for pattern matching */
42 extern Name namePmInteger;
44 extern Name namePmNpk, namePmSub; /* primitives for (n+k) patterns */
46 extern Name nameError; /* For runtime error messages */
47 extern Name nameUndefined; /* A generic undefined value */
48 extern Name nameBlackHole; /* For GC-detected black hole */
49 extern Name nameInd; /* For dict indirection */
50 extern Name nameAnd, nameOr; /* For optimisation of && and || */
51 extern Name nameFromInt, nameFromDouble;/*coercion of numerics */
52 extern Name nameFromInteger;
53 extern Name nameEq, nameCompare; /* names used for deriving */
54 extern Name nameMinBnd, nameMaxBnd;
55 extern Name nameIndex, nameInRange;
56 extern Name nameRange;
57 extern Name nameLe, nameGt;
58 extern Name nameShowsPrec, nameReadsPrec;
59 extern Name nameMult, namePlus;
60 extern Name nameConCmp, nameEnRange;
61 extern Name nameEnIndex, nameEnInRng;
62 extern Name nameEnToEn, nameEnFrEn;
63 extern Name nameEnFrom, nameEnFrTh;
64 extern Name nameEnFrTo;
65 extern Name nameComp, nameApp; /* composition and append */
66 extern Name nameShowField; /* display single field */
67 extern Name nameShowParen; /* wrap with parens */
68 extern Name nameReadField; /* read single field */
69 extern Name nameReadParen; /* unwrap from parens */
70 extern Name nameLex; /* lexer */
71 extern Name nameRangeSize; /* calculate size of index range */
72 extern Class classMonad; /* Monads */
73 extern Name nameReturn, nameBind; /* for translating monad comps */
74 extern Name nameMFail;
75 extern Name nameListMonad; /* builder function for List Monad */
76 extern Name namePrint; /* printing primitive */
77 extern Name nameCreateAdjThunk; /* f-x-dyn: create adjustor thunk */
78 extern Text textPrelude;
79 extern Text textNum; /* used to process default decls */
81 extern Text textPlus; /* Used to recognise n+k patterns */
84 extern Name nameNoRec; /* The empty record */
85 extern Type typeNoRow; /* The empty row */
86 extern Type typeRec; /* Record formation */
87 extern Kind extKind; /* Kind of extension, *->row->row */
88 extern Name nameRecExt; /* Extend a record */
89 extern Name nameRecBrk; /* Break a record */
90 extern Name nameAddEv; /* Addition of evidence values */
91 extern Name nameRecSel; /* Select a record */
92 extern Name nameRecShw; /* Show a record */
93 extern Name nameShowRecRow; /* Used to output rows */
94 extern Name nameRecEq; /* Compare records */
95 extern Name nameEqRecRow; /* Used to compare rows */
96 extern Name nameInsFld; /* Field insertion routine */
99 extern String repeatStr; /* Repeat last command string */
100 extern String hugsEdit; /* String for editor command */
101 extern String hugsPath; /* String for file search path */
102 extern String projectPath; /* String for project search path */
104 extern Type typeArrow; /* Builtin type constructors */
105 extern Type typeList;
106 extern Type typeUnit;
108 #define fn(from,to) ap(ap(typeArrow,from),to) /* make type: from -> to */
110 extern List stdDefaults; /* List of standard default types */
112 extern Class classEq; /* `standard' classes */
113 extern Class classOrd;
114 extern Class classShow;
115 extern Class classRead;
116 extern Class classIx;
117 extern Class classEnum;
118 extern Class classBounded;
120 extern Class classReal; /* `numeric' classes */
121 extern Class classIntegral;
122 extern Class classRealFrac;
123 extern Class classRealFloat;
124 extern Class classFractional;
125 extern Class classFloating;
126 extern Class classNum;
128 extern Cell *CStackBase; /* pointer to base of C stack */
130 extern List tyconDefns; /* list of type constructor defns */
131 extern List typeInDefns; /* list of synonym restrictions */
132 extern List valDefns; /* list of value definitions */
133 extern List classDefns; /* list of class definitions */
134 extern List instDefns; /* list of instance definitions */
135 extern List selDefns; /* list of selector lists */
136 extern List genDefns; /* list of generated defns */
137 extern List primDefns; /* list of primitive definitions */
138 extern List unqualImports; /* unqualified import list */
139 extern List defaultDefns; /* default definitions (if any) */
140 extern Int defaultLine; /* line in which default defs occur*/
141 extern List evalDefaults; /* defaults for evaluator */
142 extern Cell inputExpr; /* evaluator input expression */
143 extern Addr inputCode; /* Code for compiled input expr */
145 extern Int whnfArgs; /* number of args of term in whnf */
146 extern Cell whnfHead; /* head of term in whnf */
147 extern Int whnfInt; /* integer value of term in whnf */
148 extern Float whnfFloat; /* float value of term in whnf */
149 extern Long numCells; /* number of cells allocated */
150 extern Int numGcs; /* number of garbage collections */
151 extern Bool broken; /* indicates interrupt received */
152 extern Bool preludeLoaded; /* TRUE => prelude has been loaded */
154 extern Bool gcMessages; /* TRUE => print GC messages */
155 extern Bool literateScripts; /* TRUE => default lit scripts */
156 extern Bool literateErrors; /* TRUE => report errs in lit scrs */
157 extern Bool optimise; /* TRUE => simplify STG */
159 extern Int cutoff; /* Constraint Cutoff depth */
162 extern String preprocessor; /* preprocessor command */
166 extern Bool debugCode; /* TRUE => print G-code to screen */
168 extern Bool kindExpert; /* TRUE => display kind errors in */
170 extern Bool allowOverlap; /* TRUE => allow overlapping insts */
172 /* --------------------------------------------------------------------------
173 * Function prototypes etc...
174 * ------------------------------------------------------------------------*/
176 extern Void everybody Args((Int));
178 #define RESET 1 /* reset subsystem */
179 #define MARK 2 /* mark parts of graph in use by subsystem */
180 #define INSTALL 3 /* install subsystem (executed once only) */
181 #define EXIT 4 /* Take action immediately before exit() */
182 #define BREAK 5 /* Take action after program break */
183 #define GCDONE 6 /* Restore subsystem invariantss after GC */
186 extern Void setGoal Args((String, Target));
187 extern Void soFar Args((Target));
188 extern Void done Args((Void));
189 extern String fromEnv Args((String,String));
190 extern Bool chase Args((List));
192 extern Void storage Args((Int));
194 extern Void input Args((Int));
195 extern Void consoleInput Args((String));
196 extern Void projInput Args((String));
197 extern Void stringInput Args((String));
198 extern Void parseScript Args((String,Long));
199 extern Void parseExp Args((Void));
200 extern String readFilename Args((Void));
201 extern String readLine Args((Void));
202 extern Syntax defaultSyntax Args((Text));
203 extern Syntax syntaxOf Args((Name));
204 extern String unlexChar Args((Char,Char));
205 extern Void printString Args((String));
207 extern Void substitution Args((Int));
208 extern Void optimiser Args((Int));
210 extern Void staticAnalysis Args((Int));
211 extern Void startModule Args((Cell));
212 extern Void setExportList Args((List));
213 extern Void setExports Args((List));
214 extern Void addQualImport Args((Text,Text));
215 extern Void addUnqualImport Args((Text,List));
217 extern Void tyconDefn Args((Int,Cell,Cell,Cell));
218 extern Void setTypeIns Args((List));
219 extern Void clearTypeIns Args((Void));
220 extern Type fullExpand Args((Type));
221 extern Bool isAmbiguous Args((Type));
222 extern Void ambigError Args((Int,String,Cell,Type));
223 extern Void classDefn Args((Int,Cell,Cell));
224 extern Void instDefn Args((Int,Cell,Cell));
225 extern Void addTupInst Args((Class,Int));
227 extern Inst addRecShowInst Args((Class,Ext));
228 extern Inst addRecEqInst Args((Class,Ext));
230 extern Void primDefn Args((Cell,List,Cell));
231 extern Void defaultDefn Args((Int,List));
232 extern Void checkExp Args((Void));
233 extern Void checkDefns Args((Void));
234 extern Bool h98Pred Args((Bool,Cell));
235 extern Cell h98Context Args((Bool,List));
236 extern Void h98CheckCtxt Args((Int,String,Bool,List,Inst));
237 extern Void h98CheckType Args((Int,String,Cell,Type));
238 extern Void h98DoesntSupport Args((Int,String));
240 extern Void typeChecker Args((Int));
241 extern Type typeCheckExp Args((Bool));
242 extern Void typeCheckDefns Args((Void));
243 extern Cell provePred Args((Kinds,List,Cell));
244 extern List simpleContext Args((List,Int));
245 extern Cell rhsExpr Args((Cell));
246 extern Int rhsLine Args((Cell));
247 extern Bool isProgType Args((List,Type));
248 extern Cell superEvid Args((Cell,Class,Class));
249 extern Void linkPreludeTC Args((Void));
250 extern Void linkPreludeCM Args((Void));
252 extern Void compiler Args((Int));
253 extern Void compileDefns Args((Void));
254 extern Void compileExp Args((Void));
255 extern Bool failFree Args((Cell));
256 extern Int discrArity Args((Cell));
258 extern Addr codeGen Args((Name,Int,Cell));
259 extern Void implementCfun Args((Name,List));
261 extern Name implementRecShw Args((Text,Cell));
262 extern Name implementRecEq Args((Text,Cell));
264 extern Void addCfunTable Args((Tycon));
265 extern Name succCfun Args((Name));
266 extern Name nextCfun Args((Name,Name));
267 extern Name cfunByNum Args((Name,Int));
268 extern Void unwind Args((Cell));
269 extern Void run Args((Addr,StackPtr));
271 extern Void eval Args((Cell));
272 extern Cell evalWithNoError Args((Cell));
273 extern Void evalFails Args((StackPtr));
275 extern Void abandon Args((String,Cell));
276 extern Void outputString Args((FILE *));
277 extern Void dialogue Args((Cell));
278 #define consChar(c) ap(nameCons,mkChar(c))
280 extern Int shellEsc Args((String));
281 extern Int getTerminalWidth Args((Void));
282 extern Void normalTerminal Args((Void));
283 extern Void noechoTerminal Args((Void));
284 extern Int readTerminalChar Args((Void));
285 extern Void gcStarted Args((Void));
286 extern Void gcScanning Args((Void));
287 extern Void gcRecovered Args((Int));
288 extern Void gcCStack Args((Void));
289 extern Void needPrims Args((Int));
291 extern Type primType( Int /*AsmMonad*/ monad, String a_kinds, String r_kinds );
292 #define aVar mkOffset(0) /* Simple skeleton for type var */
294 /*-------------------------------------------------------------------------*/
296 /*---------------------------------------------------------------------------
297 * Interrupting execution (signals, allowBreak):
298 *-------------------------------------------------------------------------*/
300 extern Bool breakOn Args((Bool));
302 extern Bool broken; /* indicates interrupt received */
304 #ifndef SIGBREAK /* Sigh, not defined in cygwin32 beta release 16 */
308 /* allowBreak: call to allow user to interrupt computation
309 * ctrlbrk: set control break handler
314 # define allowBreak() kbhit()
315 #else /* !HUGS_FOR_WINDOWS */
316 # define ctrlbrk(bh) signal(SIGINT,bh); signal(SIGBREAK,bh)
317 # define allowBreak() if (broken) { broken=FALSE; sigRaise(breakHandler); }
318 #endif /* !HUGS_FOR_WINDOWS */
320 /*---------------------------------------------------------------------------
321 * Environment variables and the registry
322 *-------------------------------------------------------------------------*/
324 /* On Win32 we can use the registry to supplement info in environment
327 #define USE_REGISTRY (HAVE_WINDOWS_H && !__MSDOS__)
330 Bool writeRegString Args((String var, String val));
331 String readRegString Args((String var, String def));
332 Int readRegInt Args((String var, Int def));
333 Bool writeRegInt Args((String var, Int val));
336 /*---------------------------------------------------------------------------
338 *-------------------------------------------------------------------------*/
341 # include <sys/types.h>
343 #elif !HUGS_FOR_WINDOWS
344 extern int chdir Args((const char*));
350 extern int system Args((const char *));
351 extern double atof Args((const char *));
352 extern void exit Args((int));
355 #ifndef FILENAME_MAX /* should already be defined in an ANSI compiler*/
356 #define FILENAME_MAX 256
358 #if FILENAME_MAX < 256
360 #define FILENAME_MAX 256
364 /* Hack, hack: if you have dos.h, you probably have a DOS filesystem */
365 #define DOS_FILENAMES HAVE_DOS_H
366 /* ToDo: can we replace this with a feature test? */
367 #define MAC_FILENAMES SYMANTEC_C
369 #define CASE_INSENSITIVE_FILENAMES (DOS_FILENAMES | RISCOS)
371 #if CASE_INSENSITIVE_FILENAMES
373 # define filenamecmp(s1,s2) strcasecmp(s1,s2)
375 # define filenamecmp(s1,s2) _stricmp(s1,s2)
377 # define filenamecmp(s1,s2) stricmp(s1,s2)
379 # define filenamecmp(s1,s2) strcmpi(s1,s2)
382 # define filenamecmp(s1,s2) strcmp(s1,s2)
385 /*---------------------------------------------------------------------------
386 * Pipe-related operations:
388 * On Windows, many standard Unix names acquire a leading underscore.
389 * Irritating, but easy to work around.
390 *-------------------------------------------------------------------------*/
392 #if !defined(HAVE_POPEN) && defined(HAVE__POPEN)
393 #define popen(x,y) _popen(x,y)
395 #if !defined(HAVE_PCLOSE) && defined(HAVE__PCLOSE)
396 #define pclose(x) _pclose(x)
399 /*---------------------------------------------------------------------------
401 *-------------------------------------------------------------------------*/
403 #define bitArraySize(n) ((n)/bitsPerWord + 1)
404 #define placeInSet(n) ((-(n)-1)>>wordShift)
405 #define maskInSet(n) (1<<((-(n)-1)&wordMask))
407 /*---------------------------------------------------------------------------
408 * Function prototypes for code in machdep.c
409 *-------------------------------------------------------------------------*/
411 extern String findMPathname Args((String,String,String));
412 extern String findPathname Args((String,String));
414 extern Int shellEsc Args((String));
415 extern Int getTerminalWidth Args((Void));
416 extern Void normalTerminal Args((Void));
417 extern Void noechoTerminal Args((Void));
418 extern Int readTerminalChar Args((Void));
419 extern Void gcStarted Args((Void));
420 extern Void gcScanning Args((Void));
421 extern Void gcRecovered Args((Int));
422 extern Void gcCStack Args((Void));
424 /*-------------------------------------------------------------------------*/
426 extern Type typeInt64;
427 extern Type typeWord;
428 extern Type typeFloat;
429 extern Type typePrimArray;
430 extern Type typePrimByteArray;
432 extern Type typePrimMutableArray;
433 extern Type typePrimMutableByteArray;
434 extern Type typeStable;
435 extern Type typeWeak;
437 extern Type typeForeign;
438 extern Type typeMVar;
439 extern Type typeThreadId;
440 extern Type typeException;
444 extern Void foreignImport Args((Cell,Pair,Cell,Cell));
445 extern List foreignImports; /* foreign import declarations */
446 extern Void implementForeignImport Args((Name));
447 extern Void foreignExport Args((Cell,Cell,Cell,Cell));
448 extern List foreignExports; /* foreign export declarations */
449 extern Void implementForeignExport Args((Name));
454 Int userArity Args((Name));
457 extern List deriveEq Args((Tycon));
458 extern List deriveOrd Args((Tycon));
459 extern List deriveEnum Args((Tycon));
460 extern List deriveIx Args((Tycon));
461 extern List deriveShow Args((Tycon));
462 extern List deriveRead Args((Cell));
463 extern List deriveBounded Args((Tycon));
464 extern List checkPrimDefn Args((Triple));
466 extern Bool typeMatches Args((Type,Type));
467 extern Void evalExp Args((Void));
468 extern Void linkControl Args((Int));
469 extern Void deriveControl Args((Int));
470 extern Void translateControl Args((Int));
471 extern Void codegen Args((Int));
472 extern Void machdep Args((Int));
474 extern Void linkPreludeNames(void);
476 extern Kind starToStar; /* Type -> Type */
477 extern Type boundPair; /* (mkOffset(0),mkOffset(0)) */
478 extern Type typeOrdering;
480 extern Type conToTagType Args((Tycon));
481 extern Type tagToConType Args((Tycon));
483 #define BOGUS(k) (-9000000-(k))
485 extern Void putChr Args((Int));
486 extern Void putStr Args((String));
487 extern Void putInt Args((Int));
488 extern Void putPtr Args((Ptr));
490 extern Void unlexCharConst Args((Cell));
491 extern FILE *outputStream; /* current output stream */
492 extern Int outColumn; /* current output column number */
494 extern Void unlexStrConst Args((Text));
495 extern Void unlexVar Args((Text));
496 extern List offsetTyvarsIn Args((Type,List));
498 extern Void optimiseTopBinds Args((List));
499 extern List cfunSfuns; /* List of (Cfun,[SelectorVar]) */
501 extern Void interface Args((Int));
503 extern List typeVarsIn Args((Cell,List,List));
505 extern Void getFileSize Args((String, Long *));
507 extern Void loadInterface Args((String,Long));
509 extern Void openGHCIface Args((Text));
510 extern Void loadSharedLib Args((String));
511 extern Void addGHCImports Args((Int,Text,List));
512 extern Void addGHCExports Args((Cell,List));
513 extern Void addGHCVar Args((Int,Text,Type));
514 extern Void addGHCSynonym Args((Int,Cell,List,Type));
515 extern Void addGHCDataDecl Args((Int,List,Cell,List,List));
516 extern Void addGHCNewType Args((Int,List,Cell,List,Cell));
517 extern Void addGHCClass Args((Int,List,Cell,List,List));
518 extern Void addGHCInstance Args((Int,List,Pair,Text));
519 extern Void finishInterfaces Args((Void));
521 extern Void hi_o_namesFromSrcName Args((String,String*,String* oName));
522 extern Void parseInterface Args((String,Long));
525 #define SMALL_INLINE_SIZE 9
528 // nasty hack, but seems an easy to convey the object name
529 // and size to openGHCIface
530 char nameObj[FILENAME_MAX+1];