WebSVN – Kolibri OS – Blame – /programs/develop/oberon07/source/PARS.ob07

Rev	Author	Line No.	Line
7983	leency	1	(*
7597	akron1	2	BSD 2-Clause License
		3
8859	leency	4	Copyright (c) 2018-2021, Anton Krotov
7597	akron1	5	All rights reserved.
		6	*)
		7
		8	MODULE PARS;
		9
7983	leency	10	IMPORT PROG, SCAN, ARITH, STRINGS, ERRORS, LISTS, IL, CONSOLE, PATHS, UTILS,
8859	leency	11	C := COLLECTIONS, TARGETS, THUMB, MSP430;
7597	akron1	12
		13
		14	CONST
		15
		16	eCONST* = 1; eTYPE* = 2; eVAR* = 3; eEXPR* = 4;
		17	eVREC* = 5; ePROC* = 6; eVPAR* = 7; ePARAM* = 8;
		18	eSTPROC* = 9; eSTFUNC* = 10; eSYSFUNC* = 11; eSYSPROC* = 12;
		19	eIMP* = 13;
		20
		21
		22	TYPE
		23
		24	PATH* = PATHS.PATH;
		25
		26	PARSER* = POINTER TO rPARSER;
		27
7693	akron1	28	POSITION* = RECORD (SCAN.POSITION)
		29
		30	parser*: PARSER
		31
		32	END;
		33
7597	akron1	34	EXPR* = RECORD
		35
		36	obj*: INTEGER;
8097	maxcodehac	37	_type*: PROG._TYPE;
7597	akron1	38	value*: ARITH.VALUE;
		39	stproc*: INTEGER;
		40	readOnly*: BOOLEAN;
		41	ident*: PROG.IDENT
		42
		43	END;
		44
		45	STATPROC = PROCEDURE (parser: PARSER);
		46	EXPRPROC = PROCEDURE (parser: PARSER; VAR e: EXPR);
8097	maxcodehac	47	RETPROC = PROCEDURE (parser: PARSER; e: EXPR; t: PROG._TYPE; pos: POSITION): BOOLEAN;
7597	akron1	48
		49	rPARSER = RECORD (C.ITEM)
		50
		51	fname*: PATH;
		52	path: PATH;
		53	lib_path: PATH;
		54	ext: PATH;
		55	modname: PATH;
		56	scanner: SCAN.SCANNER;
		57	lex*: SCAN.LEX;
		58	sym*: INTEGER;
		59	unit*: PROG.UNIT;
		60	constexp*: BOOLEAN;
		61	main*: BOOLEAN;
		62
8859	leency	63	open*: PROCEDURE (parser: PARSER; modname, FileExt: ARRAY OF CHAR): BOOLEAN;
7597	akron1	64	parse*: PROCEDURE (parser: PARSER);
		65	StatSeq*: STATPROC;
		66	expression*: EXPRPROC;
		67	designator*: EXPRPROC;
		68	chkreturn: RETPROC;
		69
		70	create*: PROCEDURE (path, lib_path: PATH; StatSeq: STATPROC; expression, designator: EXPRPROC; chkreturn: RETPROC): PARSER
		71
		72	END;
		73
		74
		75	VAR
		76
		77	parsers: C.COLLECTION;
		78
7983	leency	79	lines*, modules: INTEGER;
7597	akron1	80
7696	akron1	81
7597	akron1	82	PROCEDURE destroy* (VAR parser: PARSER);
		83	BEGIN
		84	IF parser.scanner # NIL THEN
		85	SCAN.close(parser.scanner)
		86	END;
		87
		88	C.push(parsers, parser);
		89	parser := NIL
		90	END destroy;
		91
		92
7693	akron1	93	PROCEDURE getpos (parser: PARSER; VAR pos: POSITION);
7597	akron1	94	BEGIN
7693	akron1	95	pos.line := parser.lex.pos.line;
		96	pos.col := parser.lex.pos.col;
		97	pos.parser := parser
		98	END getpos;
		99
		100
		101	PROCEDURE error* (pos: POSITION; errno: INTEGER);
		102	BEGIN
		103	ERRORS.ErrorMsg(pos.parser.fname, pos.line, pos.col, errno)
7597	akron1	104	END error;
		105
		106
7693	akron1	107	PROCEDURE check* (condition: BOOLEAN; pos: POSITION; errno: INTEGER);
7597	akron1	108	BEGIN
		109	IF ~condition THEN
7693	akron1	110	error(pos, errno)
7597	akron1	111	END
		112	END check;
		113
		114
		115	PROCEDURE check1* (condition: BOOLEAN; parser: PARSER; errno: INTEGER);
7693	akron1	116	VAR
		117	pos: POSITION;
		118
7597	akron1	119	BEGIN
		120	IF ~condition THEN
7693	akron1	121	getpos(parser, pos);
		122	error(pos, errno)
7597	akron1	123	END
		124	END check1;
		125
		126
		127	PROCEDURE Next* (parser: PARSER);
		128	VAR
		129	errno: INTEGER;
		130
		131	BEGIN
		132	SCAN.Next(parser.scanner, parser.lex);
		133	errno := parser.lex.error;
8097	maxcodehac	134	IF errno = 0 THEN
		135	IF (TARGETS.RealSize = 0) & (parser.lex.sym = SCAN.lxFLOAT) THEN
7693	akron1	136	errno := -SCAN.lxERROR13
8097	maxcodehac	137	ELSIF (TARGETS.BitDepth = 16) & (parser.lex.sym = SCAN.lxCHAR) & (parser.lex.value.typ = ARITH.tWCHAR) THEN
7693	akron1	138	errno := -SCAN.lxERROR10
		139	END
		140	END;
		141
7597	akron1	142	IF errno # 0 THEN
		143	check1(FALSE, parser, errno)
		144	END;
		145	parser.sym := parser.lex.sym
		146	END Next;
		147
		148
7693	akron1	149	PROCEDURE NextPos (parser: PARSER; VAR pos: POSITION);
7597	akron1	150	BEGIN
		151	Next(parser);
7693	akron1	152	getpos(parser, pos)
7597	akron1	153	END NextPos;
		154
		155
		156	PROCEDURE checklex* (parser: PARSER; sym: INTEGER);
		157	VAR
		158	err: INTEGER;
		159
		160	BEGIN
		161
		162	IF parser.sym # sym THEN
		163
		164	CASE sym OF
		165	\|SCAN.lxCOMMA: err := 65
		166	\|SCAN.lxRROUND: err := 33
		167	\|SCAN.lxPOINT: err := 26
		168	\|SCAN.lxIDENT: err := 22
		169	\|SCAN.lxRSQUARE: err := 71
		170	\|SCAN.lxRCURLY: err := 35
		171	\|SCAN.lxUNDEF: err := 34
		172	\|SCAN.lxTHEN: err := 88
		173	\|SCAN.lxEND: err := 27
		174	\|SCAN.lxDO: err := 89
		175	\|SCAN.lxUNTIL: err := 90
		176	\|SCAN.lxCOLON: err := 53
		177	\|SCAN.lxOF: err := 67
		178	\|SCAN.lxASSIGN: err := 96
		179	\|SCAN.lxTO: err := 57
		180	\|SCAN.lxLROUND: err := 64
		181	\|SCAN.lxEQ: err := 32
		182	\|SCAN.lxSEMI: err := 24
		183	\|SCAN.lxRETURN: err := 38
		184	\|SCAN.lxMODULE: err := 21
		185	END;
		186
		187	check1(FALSE, parser, err)
		188	END
		189	END checklex;
		190
		191
		192	PROCEDURE ExpectSym* (parser: PARSER; sym: INTEGER);
		193	BEGIN
		194	Next(parser);
		195	checklex(parser, sym)
		196	END ExpectSym;
		197
		198
		199	PROCEDURE ImportList (parser: PARSER);
		200	VAR
8859	leency	201	fname, path, ext, _name: PATH;
7693	akron1	202	name: SCAN.IDENT;
		203	parser2: PARSER;
		204	pos: POSITION;
8859	leency	205	alias, _in: BOOLEAN;
7693	akron1	206	unit: PROG.UNIT;
		207	ident: PROG.IDENT;
7597	akron1	208
		209	BEGIN
		210	alias := FALSE;
		211
		212	REPEAT
		213
		214	ExpectSym(parser, SCAN.lxIDENT);
		215	name := parser.lex.ident;
		216
		217	getpos(parser, pos);
		218
		219	IF ~alias THEN
7693	akron1	220	ident := PROG.addIdent(parser.unit, name, PROG.idMODULE);
		221	check(ident # NIL, pos, 30)
7597	akron1	222	END;
		223
		224	Next(parser);
		225
8859	leency	226	path := parser.path;
		227	fname := "";
		228	ext := UTILS.FILE_EXT;
		229	COPY(name.s, _name);
		230	_in := FALSE;
		231
		232	IF parser.sym = SCAN.lxIN THEN
		233	_in := TRUE;
		234	Next(parser);
		235	IF parser.sym = SCAN.lxSTRING THEN
		236	STRINGS.trim(parser.lex.string.s, fname)
		237	ELSIF parser.sym = SCAN.lxCHAR THEN
		238	fname[0] := CHR(ARITH.Int(parser.lex.value));
		239	fname[1] := 0X
		240	ELSE
		241	check1(FALSE, parser, 117)
		242	END;
		243	STRINGS.replace(fname, "/", UTILS.slash);
		244	STRINGS.replace(fname, "\", UTILS.slash);
		245	PATHS.DelSlashes(fname);
		246	PATHS.split(fname, path, _name, ext);
		247	IF PATHS.isRelative(path) THEN
		248	PATHS.RelPath(parser.path, path, fname);
		249	STRINGS.append(fname, _name);
		250	STRINGS.append(fname, ext);
		251	PATHS.split(fname, path, _name, ext)
		252	END;
		253	Next(parser)
		254	END;
		255
7597	akron1	256	IF (parser.sym = SCAN.lxCOMMA) OR (parser.sym = SCAN.lxSEMI) THEN
		257	alias := FALSE;
8859	leency	258	IF (fname = "") & ((_name = "SYSTEM") OR PROG.LowerCase & (_name = "system")) THEN
		259	unit := PROG.program.sysunit
		260	ELSE
		261	IF fname # "" THEN
		262	unit := PROG.getUnit(fname)
		263	ELSE
		264	fname := path;
		265	STRINGS.append(fname, _name);
		266	STRINGS.append(fname, UTILS.FILE_EXT);
		267	unit := PROG.getUnit(fname);
		268	IF unit = NIL THEN
		269	fname := parser.lib_path;
		270	STRINGS.append(fname, _name);
		271	STRINGS.append(fname, UTILS.FILE_EXT);
		272	unit := PROG.getUnit(fname)
		273	END
		274	END
		275	END;
7597	akron1	276
		277	IF unit # NIL THEN
7693	akron1	278	check(unit.closed, pos, 31)
7597	akron1	279	ELSE
8859	leency	280	parser2 := parser.create(path, parser.lib_path,
7597	akron1	281	parser.StatSeq, parser.expression, parser.designator, parser.chkreturn);
		282
8859	leency	283	IF ~parser2.open(parser2, _name, ext) THEN
		284	IF (path # parser.lib_path) & ~_in THEN
7597	akron1	285	destroy(parser2);
		286	parser2 := parser.create(parser.lib_path, parser.lib_path,
		287	parser.StatSeq, parser.expression, parser.designator, parser.chkreturn);
8859	leency	288	check(parser2.open(parser2, _name, ext), pos, 29)
7597	akron1	289	ELSE
7693	akron1	290	error(pos, 29)
7597	akron1	291	END
		292	END;
		293
		294	parser2.parse(parser2);
		295	unit := parser2.unit;
8859	leency	296	unit.fname := parser2.fname;
7597	akron1	297	destroy(parser2)
		298	END;
8097	maxcodehac	299	IF unit = PROG.program.sysunit THEN
7597	akron1	300	parser.unit.sysimport := TRUE
		301	END;
		302	ident.unit := unit
		303
		304	ELSIF parser.sym = SCAN.lxASSIGN THEN
		305	alias := TRUE
		306
		307	ELSE
		308	check1(FALSE, parser, 28)
		309	END
		310
		311	UNTIL parser.sym = SCAN.lxSEMI;
		312
		313	Next(parser)
		314
		315	END ImportList;
		316
		317
		318	PROCEDURE QIdent (parser: PARSER; forward: BOOLEAN): PROG.IDENT;
		319	VAR
		320	ident: PROG.IDENT;
		321	unit: PROG.UNIT;
		322
		323	BEGIN
		324	ASSERT(parser.sym = SCAN.lxIDENT);
		325
7693	akron1	326	ident := PROG.getIdent(parser.unit, parser.lex.ident, FALSE);
7597	akron1	327
		328	IF ~forward THEN
		329	check1(ident # NIL, parser, 48)
		330	END;
		331
		332	IF (ident # NIL) & (ident.typ = PROG.idMODULE) THEN
		333	unit := ident.unit;
		334	ExpectSym(parser, SCAN.lxPOINT);
		335	ExpectSym(parser, SCAN.lxIDENT);
7693	akron1	336	ident := PROG.getIdent(unit, parser.lex.ident, FALSE);
7597	akron1	337	check1((ident # NIL) & ident.export, parser, 48)
		338	END
		339
		340	RETURN ident
		341	END QIdent;
		342
		343
		344	PROCEDURE strcmp* (VAR v: ARITH.VALUE; v2: ARITH.VALUE; operator: INTEGER);
		345	VAR
8859	leency	346	str: SCAN.TEXTSTR;
		347	string1, string2: SCAN.STRING;
7597	akron1	348	bool: BOOLEAN;
		349
		350	BEGIN
		351
		352	IF v.typ = ARITH.tCHAR THEN
		353	ASSERT(v2.typ = ARITH.tSTRING);
		354	ARITH.charToStr(v, str);
8859	leency	355	string1 := SCAN.enterStr(str);
		356	string2 := v2.string(SCAN.STRING)
7597	akron1	357	END;
		358
		359	IF v2.typ = ARITH.tCHAR THEN
		360	ASSERT(v.typ = ARITH.tSTRING);
		361	ARITH.charToStr(v2, str);
8859	leency	362	string2 := SCAN.enterStr(str);
		363	string1 := v.string(SCAN.STRING)
7597	akron1	364	END;
		365
		366	IF v.typ = v2.typ THEN
8859	leency	367	string1 := v.string(SCAN.STRING);
		368	string2 := v2.string(SCAN.STRING)
7597	akron1	369	END;
		370
		371	CASE operator OF
		372	\|SCAN.lxEQ: bool := string1.s = string2.s
		373	\|SCAN.lxNE: bool := string1.s # string2.s
		374	\|SCAN.lxLT: bool := string1.s < string2.s
		375	\|SCAN.lxGT: bool := string1.s > string2.s
		376	\|SCAN.lxLE: bool := string1.s <= string2.s
		377	\|SCAN.lxGE: bool := string1.s >= string2.s
		378	END;
		379
		380	ARITH.setbool(v, bool)
		381	END strcmp;
		382
		383
		384	PROCEDURE ConstExpression* (parser: PARSER; VAR v: ARITH.VALUE);
		385	VAR
		386	e: EXPR;
7693	akron1	387	pos: POSITION;
7597	akron1	388
		389	BEGIN
		390	getpos(parser, pos);
		391	parser.constexp := TRUE;
		392	parser.expression(parser, e);
		393	parser.constexp := FALSE;
7693	akron1	394	check(e.obj = eCONST, pos, 62);
7597	akron1	395	v := e.value
		396	END ConstExpression;
		397
		398
8097	maxcodehac	399	PROCEDURE FieldList (parser: PARSER; rec: PROG._TYPE);
7597	akron1	400	VAR
7693	akron1	401	name: SCAN.IDENT;
		402	export: BOOLEAN;
		403	pos: POSITION;
7597	akron1	404
		405	BEGIN
		406	ASSERT(parser.sym = SCAN.lxIDENT);
		407
		408	WHILE parser.sym = SCAN.lxIDENT DO
		409
		410	getpos(parser, pos);
		411
		412	name := parser.lex.ident;
		413
		414	Next(parser);
		415
		416	export := parser.sym = SCAN.lxMUL;
		417
		418	IF export THEN
		419	check1(parser.unit.scopeLvl = 0, parser, 61);
		420	Next(parser)
		421	END;
		422
7693	akron1	423	check(PROG.addField(rec, name, export), pos, 30);
7597	akron1	424
		425	IF parser.sym = SCAN.lxCOMMA THEN
		426	ExpectSym(parser, SCAN.lxIDENT)
		427	ELSE
		428	checklex(parser, SCAN.lxCOLON)
		429	END
		430
		431	END
		432
		433	END FieldList;
		434
		435
8097	maxcodehac	436	PROCEDURE FormalParameters (parser: PARSER; _type: PROG._TYPE);
7597	akron1	437	VAR
		438	ident: PROG.IDENT;
		439
		440
8097	maxcodehac	441	PROCEDURE FPSection (parser: PARSER; _type: PROG._TYPE);
7597	akron1	442	VAR
		443	ident: PROG.IDENT;
		444	exit: BOOLEAN;
		445	vPar: BOOLEAN;
		446	dim: INTEGER;
8097	maxcodehac	447	t0, t1: PROG._TYPE;
7597	akron1	448
		449	BEGIN
		450	vPar := parser.sym = SCAN.lxVAR;
		451	IF vPar THEN
		452	Next(parser)
		453	END;
		454
		455	checklex(parser, SCAN.lxIDENT);
		456	exit := FALSE;
		457
		458	WHILE (parser.sym = SCAN.lxIDENT) & ~exit DO
8097	maxcodehac	459	check1(PROG.addParam(_type, parser.lex.ident, vPar), parser, 30);
7597	akron1	460	Next(parser);
		461	IF parser.sym = SCAN.lxCOMMA THEN
		462	ExpectSym(parser, SCAN.lxIDENT)
		463	ELSIF parser.sym = SCAN.lxCOLON THEN
		464	Next(parser);
		465	dim := 0;
		466	WHILE parser.sym = SCAN.lxARRAY DO
		467	INC(dim);
		468	check1(dim <= PROG.MAXARRDIM, parser, 84);
		469	ExpectSym(parser, SCAN.lxOF);
		470	Next(parser)
		471	END;
		472	checklex(parser, SCAN.lxIDENT);
		473	ident := QIdent(parser, FALSE);
		474	check1(ident.typ = PROG.idTYPE, parser, 68);
		475
8097	maxcodehac	476	t0 := ident._type;
7597	akron1	477	t1 := t0;
		478
		479	WHILE dim > 0 DO
8097	maxcodehac	480	t1 := PROG.enterType(PROG.tARRAY, -1, 0, parser.unit);
7597	akron1	481	t1.base := t0;
		482	t0 := t1;
		483	DEC(dim)
		484	END;
		485
8097	maxcodehac	486	PROG.setParams(_type, t1);
7597	akron1	487	Next(parser);
		488	exit := TRUE
		489	ELSE
		490	checklex(parser, SCAN.lxCOLON)
		491	END
		492	END
		493
		494	END FPSection;
		495
		496
		497	BEGIN
		498	IF parser.sym = SCAN.lxLROUND THEN
		499
		500	Next(parser);
		501
		502	IF (parser.sym = SCAN.lxVAR) OR (parser.sym = SCAN.lxIDENT) THEN
8097	maxcodehac	503	FPSection(parser, _type);
7597	akron1	504	WHILE parser.sym = SCAN.lxSEMI DO
		505	Next(parser);
8097	maxcodehac	506	FPSection(parser, _type)
7597	akron1	507	END
		508	END;
		509
		510	checklex(parser, SCAN.lxRROUND);
		511	Next(parser);
		512
		513	IF parser.sym = SCAN.lxCOLON THEN
		514	ExpectSym(parser, SCAN.lxIDENT);
		515	ident := QIdent(parser, FALSE);
		516	check1(ident.typ = PROG.idTYPE, parser, 68);
8097	maxcodehac	517	check1(~(ident._type.typ IN {PROG.tRECORD, PROG.tARRAY}), parser, 69);
		518	check1( ~(ODD(_type.call) & (ident._type.typ = PROG.tREAL)), parser, 113);
		519	_type.base := ident._type;
7597	akron1	520	Next(parser)
		521	ELSE
8097	maxcodehac	522	_type.base := NIL
7597	akron1	523	END
		524
		525	END
		526	END FormalParameters;
		527
		528
7693	akron1	529	PROCEDURE sysflag (parser: PARSER; proc: BOOLEAN): INTEGER;
7597	akron1	530	VAR
7693	akron1	531	res, sf: INTEGER;
7597	akron1	532
		533	BEGIN
8859	leency	534	checklex(parser, SCAN.lxIDENT);
		535	IF parser.lex.ident.s = "stdcall" THEN
7693	akron1	536	sf := PROG.sf_stdcall
8859	leency	537	ELSIF parser.lex.ident.s = "cdecl" THEN
		538	sf := PROG.sf_cdecl
		539	ELSIF parser.lex.ident.s = "ccall" THEN
7693	akron1	540	sf := PROG.sf_ccall
8859	leency	541	ELSIF parser.lex.ident.s = "win64" THEN
7693	akron1	542	sf := PROG.sf_win64
8859	leency	543	ELSIF parser.lex.ident.s = "systemv" THEN
7693	akron1	544	sf := PROG.sf_systemv
8859	leency	545	ELSIF parser.lex.ident.s = "windows" THEN
7693	akron1	546	sf := PROG.sf_windows
8859	leency	547	ELSIF parser.lex.ident.s = "linux" THEN
7693	akron1	548	sf := PROG.sf_linux
8859	leency	549	ELSIF parser.lex.ident.s = "code" THEN
7693	akron1	550	sf := PROG.sf_code
8859	leency	551	ELSIF parser.lex.ident.s = "oberon" THEN
8097	maxcodehac	552	sf := PROG.sf_oberon
8859	leency	553	ELSIF parser.lex.ident.s = "noalign" THEN
7693	akron1	554	sf := PROG.sf_noalign
		555	ELSE
		556	check1(FALSE, parser, 124)
		557	END;
		558
8097	maxcodehac	559	check1(sf IN PROG.program.sysflags, parser, 125);
7693	akron1	560
		561	IF proc THEN
		562	check1(sf IN PROG.proc_flags, parser, 123)
		563	ELSE
		564	check1(sf IN PROG.rec_flags, parser, 123)
		565	END;
		566
		567	CASE sf OF
		568	\|PROG.sf_stdcall:
7597	akron1	569	res := PROG.stdcall
8859	leency	570	\|PROG.sf_cdecl:
		571	res := PROG.cdecl
7693	akron1	572	\|PROG.sf_ccall:
8859	leency	573	IF TARGETS.OS IN {TARGETS.osWIN32, TARGETS.osLINUX32, TARGETS.osKOS} THEN
		574	res := PROG.ccall
		575	ELSIF TARGETS.OS = TARGETS.osWIN64 THEN
		576	res := PROG.win64
		577	ELSIF TARGETS.OS = TARGETS.osLINUX64 THEN
		578	res := PROG.systemv
		579	END
7693	akron1	580	\|PROG.sf_win64:
7597	akron1	581	res := PROG.win64
7693	akron1	582	\|PROG.sf_systemv:
7597	akron1	583	res := PROG.systemv
7693	akron1	584	\|PROG.sf_code:
		585	res := PROG.code
8097	maxcodehac	586	\|PROG.sf_oberon:
		587	IF TARGETS.OS IN {TARGETS.osWIN32, TARGETS.osLINUX32, TARGETS.osKOS} THEN
		588	res := PROG.default32
		589	ELSIF TARGETS.OS IN {TARGETS.osWIN64, TARGETS.osLINUX64} THEN
		590	res := PROG.default64
		591	END
7693	akron1	592	\|PROG.sf_windows:
7983	leency	593	IF TARGETS.OS = TARGETS.osWIN32 THEN
7597	akron1	594	res := PROG.stdcall
7983	leency	595	ELSIF TARGETS.OS = TARGETS.osWIN64 THEN
7597	akron1	596	res := PROG.win64
		597	END
7693	akron1	598	\|PROG.sf_linux:
7983	leency	599	IF TARGETS.OS = TARGETS.osLINUX32 THEN
8859	leency	600	res := PROG.ccall
7983	leency	601	ELSIF TARGETS.OS = TARGETS.osLINUX64 THEN
7597	akron1	602	res := PROG.systemv
		603	END
7693	akron1	604	\|PROG.sf_noalign:
7597	akron1	605	res := PROG.noalign
		606	END
		607
		608	RETURN res
		609	END sysflag;
		610
		611
8097	maxcodehac	612	PROCEDURE procflag (parser: PARSER; VAR _import: IL.IMPORT_PROC; isProc: BOOLEAN): INTEGER;
7597	akron1	613	VAR
		614	call: INTEGER;
8859	leency	615	dll, proc: SCAN.TEXTSTR;
7693	akron1	616	pos: POSITION;
7597	akron1	617
8097	maxcodehac	618
8859	leency	619	PROCEDURE getStr (parser: PARSER; VAR name: SCAN.TEXTSTR);
8097	maxcodehac	620	VAR
		621	pos: POSITION;
		622	str: ARITH.VALUE;
		623
		624	BEGIN
		625	getpos(parser, pos);
		626	ConstExpression(parser, str);
		627	IF str.typ = ARITH.tSTRING THEN
8859	leency	628	name := str.string(SCAN.STRING).s
8097	maxcodehac	629	ELSIF str.typ = ARITH.tCHAR THEN
		630	ARITH.charToStr(str, name)
		631	ELSE
		632	check(FALSE, pos, 117)
		633	END
		634	END getStr;
		635
		636
7597	akron1	637	BEGIN
8097	maxcodehac	638	_import := NIL;
7597	akron1	639
		640	IF parser.sym = SCAN.lxLSQUARE THEN
		641	getpos(parser, pos);
		642	check1(parser.unit.sysimport, parser, 54);
		643	Next(parser);
7693	akron1	644	call := sysflag(parser, TRUE);
7597	akron1	645	Next(parser);
		646	IF parser.sym = SCAN.lxMINUS THEN
		647	Next(parser);
		648	INC(call)
		649	END;
8097	maxcodehac	650
		651	IF isProc & (parser.sym = SCAN.lxCOMMA) THEN
		652	Next(parser);
		653	getStr(parser, dll);
7983	leency	654	STRINGS.UpCase(dll);
8097	maxcodehac	655	checklex(parser, SCAN.lxCOMMA);
7597	akron1	656	Next(parser);
8097	maxcodehac	657	getStr(parser, proc);
		658	_import := IL.AddImp(dll, proc)
7597	akron1	659	END;
8097	maxcodehac	660
7597	akron1	661	checklex(parser, SCAN.lxRSQUARE);
		662	Next(parser)
		663	ELSE
7983	leency	664	CASE TARGETS.BitDepth OF
7693	akron1	665	\|16: call := PROG.default16
8097	maxcodehac	666	\|32: IF TARGETS.CPU = TARGETS.cpuX86 THEN
		667	call := PROG.default32
		668	ELSE
8859	leency	669	call := PROG.cdecl
7983	leency	670	END
8859	leency	671	\|64: IF TARGETS.CPU = TARGETS.cpuAMD64 THEN
		672	call := PROG.default64
		673	ELSE
		674	call := PROG.cdecl
		675	END
7597	akron1	676	END
		677	END;
		678
8097	maxcodehac	679	IF _import # NIL THEN
7983	leency	680	check(TARGETS.Import, pos, 70)
7597	akron1	681	END
		682
		683	RETURN call
		684	END procflag;
		685
		686
8097	maxcodehac	687	PROCEDURE _type (parser: PARSER; VAR t: PROG._TYPE; flags: SET);
7597	akron1	688	CONST
		689	comma = 0;
		690	closed = 1;
		691	forward = 2;
		692
		693	VAR
		694	arrLen: ARITH.VALUE;
		695	typeSize: ARITH.VALUE;
		696	ident: PROG.IDENT;
		697	unit: PROG.UNIT;
7693	akron1	698	pos, pos2: POSITION;
8097	maxcodehac	699	fieldType: PROG._TYPE;
7597	akron1	700	baseIdent: SCAN.IDENT;
		701	a, b: INTEGER;
		702	RecFlag: INTEGER;
8097	maxcodehac	703	_import: IL.IMPORT_PROC;
7597	akron1	704
		705	BEGIN
		706	unit := parser.unit;
		707	t := NIL;
		708
		709	IF parser.sym = SCAN.lxIDENT THEN
		710	ident := QIdent(parser, forward IN flags);
		711
		712	IF ident # NIL THEN
		713	check1(ident.typ = PROG.idTYPE, parser, 49);
8097	maxcodehac	714	t := ident._type;
7597	akron1	715	check1(t # NIL, parser, 50);
		716	IF closed IN flags THEN
		717	check1(t.closed, parser, 50)
		718	END
		719	END;
		720
		721	Next(parser)
		722
		723	ELSIF (parser.sym = SCAN.lxARRAY) OR ((parser.sym = SCAN.lxCOMMA) & (comma IN flags)) THEN
		724
		725	IF parser.sym = SCAN.lxARRAY THEN
		726	getpos(parser, pos2)
		727	END;
		728	NextPos(parser, pos);
		729
		730	ConstExpression(parser, arrLen);
		731
7693	akron1	732	check(arrLen.typ = ARITH.tINTEGER, pos, 43);
		733	check(ARITH.check(arrLen), pos, 39);
		734	check(ARITH.getInt(arrLen) > 0, pos, 51);
7597	akron1	735
8097	maxcodehac	736	t := PROG.enterType(PROG.tARRAY, -1, ARITH.getInt(arrLen), unit);
7597	akron1	737
		738	IF parser.sym = SCAN.lxCOMMA THEN
8097	maxcodehac	739	_type(parser, t.base, {comma, closed})
7597	akron1	740	ELSIF parser.sym = SCAN.lxOF THEN
		741	Next(parser);
8097	maxcodehac	742	_type(parser, t.base, {closed})
7597	akron1	743	ELSE
		744	check1(FALSE, parser, 47)
		745	END;
		746
		747	t.align := t.base.align;
		748
		749	a := t.length;
		750	b := t.base.size;
7693	akron1	751	check(ARITH.mulInt(a, b), pos2, 104);
		752	check(ARITH.setInt(typeSize, a), pos2, 104);
7597	akron1	753	t.size := a;
		754
		755	t.closed := TRUE
		756
		757	ELSIF parser.sym = SCAN.lxRECORD THEN
		758	getpos(parser, pos2);
		759	Next(parser);
		760
8097	maxcodehac	761	t := PROG.enterType(PROG.tRECORD, 0, 0, unit);
7597	akron1	762	t.align := 1;
		763
		764	IF parser.sym = SCAN.lxLSQUARE THEN
		765	check1(parser.unit.sysimport, parser, 54);
		766	Next(parser);
7693	akron1	767	RecFlag := sysflag(parser, FALSE);
		768	t.noalign := RecFlag = PROG.noalign;
7597	akron1	769	ExpectSym(parser, SCAN.lxRSQUARE);
		770	Next(parser)
		771	END;
		772
		773	IF parser.sym = SCAN.lxLROUND THEN
		774	check1(~t.noalign, parser, 111);
		775	ExpectSym(parser, SCAN.lxIDENT);
		776	getpos(parser, pos);
		777
8097	maxcodehac	778	_type(parser, t.base, {closed});
7597	akron1	779
7693	akron1	780	check(t.base.typ IN {PROG.tRECORD, PROG.tPOINTER}, pos, 52);
7597	akron1	781
		782	IF t.base.typ = PROG.tPOINTER THEN
		783	t.base := t.base.base;
7693	akron1	784	check(t.base # NIL, pos, 55)
7597	akron1	785	END;
		786
7693	akron1	787	check(~t.base.noalign, pos, 112);
7597	akron1	788
		789	checklex(parser, SCAN.lxRROUND);
		790	Next(parser);
		791
		792	t.size := t.base.size;
		793	IF t.base.align > t.align THEN
		794	t.align := t.base.align
		795	END
		796	ELSE
8097	maxcodehac	797	t.base := PROG.program.stTypes.tANYREC
7597	akron1	798	END;
		799
		800	WHILE parser.sym = SCAN.lxIDENT DO
		801	FieldList(parser, t);
		802
		803	ASSERT(parser.sym = SCAN.lxCOLON);
		804	Next(parser);
		805
8097	maxcodehac	806	_type(parser, fieldType, {closed});
7693	akron1	807	check(PROG.setFields(t, fieldType), pos2, 104);
7597	akron1	808
		809	IF (fieldType.align > t.align) & ~t.noalign THEN
		810	t.align := fieldType.align
		811	END;
		812
		813	IF parser.sym = SCAN.lxSEMI THEN
		814	ExpectSym(parser, SCAN.lxIDENT)
		815	ELSE
		816	checklex(parser, SCAN.lxEND)
		817	END
		818	END;
		819
		820	t.closed := TRUE;
		821
7693	akron1	822	IL.AddRec(t.base.num);
7597	akron1	823
		824	IF ~t.noalign THEN
7693	akron1	825	check(UTILS.Align(t.size, t.align), pos2, 104);
		826	check(ARITH.setInt(typeSize, t.size), pos2, 104)
7597	akron1	827	END;
		828
		829	checklex(parser, SCAN.lxEND);
		830	Next(parser)
		831
7693	akron1	832	ELSIF parser.sym = SCAN.lxPOINTER THEN
7597	akron1	833	ExpectSym(parser, SCAN.lxTO);
		834	Next(parser);
		835
8097	maxcodehac	836	t := PROG.enterType(PROG.tPOINTER, TARGETS.AdrSize, 0, unit);
7983	leency	837	t.align := TARGETS.AdrSize;
7597	akron1	838
		839	getpos(parser, pos);
		840
		841	IF parser.sym = SCAN.lxIDENT THEN
		842	baseIdent := parser.lex.ident
		843	END;
		844
8097	maxcodehac	845	_type(parser, t.base, {forward});
7597	akron1	846
		847	IF t.base # NIL THEN
7693	akron1	848	check(t.base.typ = PROG.tRECORD, pos, 58)
7597	akron1	849	ELSE
7693	akron1	850	PROG.frwPtr(unit, t, baseIdent, pos)
7597	akron1	851	END
		852
		853	ELSIF parser.sym = SCAN.lxPROCEDURE THEN
		854	NextPos(parser, pos);
8097	maxcodehac	855	t := PROG.enterType(PROG.tPROCEDURE, TARGETS.AdrSize, 0, unit);
7983	leency	856	t.align := TARGETS.AdrSize;
8097	maxcodehac	857	t.call := procflag(parser, _import, FALSE);
7597	akron1	858	FormalParameters(parser, t)
		859	ELSE
		860	check1(FALSE, parser, 49)
		861	END
		862
8097	maxcodehac	863	END _type;
7597	akron1	864
		865
		866	PROCEDURE IdentDef (parser: PARSER; typ: INTEGER; VAR name: SCAN.IDENT): PROG.IDENT;
		867	VAR
		868	ident: PROG.IDENT;
7693	akron1	869	pos: POSITION;
7597	akron1	870
		871	BEGIN
		872	ASSERT(parser.sym = SCAN.lxIDENT);
		873
		874	name := parser.lex.ident;
		875	getpos(parser, pos);
7693	akron1	876	ident := PROG.addIdent(parser.unit, name, typ);
		877	check(ident # NIL, pos, 30);
7597	akron1	878	ident.pos := pos;
		879	Next(parser);
		880
		881	IF parser.sym = SCAN.lxMUL THEN
		882	check1(ident.global, parser, 61);
		883	ident.export := TRUE;
		884	Next(parser)
		885	END
		886
		887	RETURN ident
		888	END IdentDef;
		889
		890
8097	maxcodehac	891	PROCEDURE ConstTypeDeclaration (parser: PARSER; _const: BOOLEAN);
7597	akron1	892	VAR
7693	akron1	893	ident: PROG.IDENT;
		894	name: SCAN.IDENT;
		895	pos: POSITION;
7597	akron1	896
		897	BEGIN
8097	maxcodehac	898	IF _const THEN
7597	akron1	899	ident := IdentDef(parser, PROG.idNONE, name)
		900	ELSE
		901	ident := IdentDef(parser, PROG.idTYPE, name)
		902	END;
		903
		904	checklex(parser, SCAN.lxEQ);
		905	NextPos(parser, pos);
		906
8097	maxcodehac	907	IF _const THEN
7597	akron1	908	ConstExpression(parser, ident.value);
		909	IF ident.value.typ = ARITH.tINTEGER THEN
7693	akron1	910	check(ARITH.check(ident.value), pos, 39)
7597	akron1	911	ELSIF ident.value.typ = ARITH.tREAL THEN
7693	akron1	912	check(ARITH.check(ident.value), pos, 40)
7597	akron1	913	END;
		914	ident.typ := PROG.idCONST;
8097	maxcodehac	915	ident._type := PROG.getType(ident.value.typ)
7597	akron1	916	ELSE
8097	maxcodehac	917	_type(parser, ident._type, {})
7597	akron1	918	END;
		919
		920	checklex(parser, SCAN.lxSEMI);
		921	Next(parser)
		922
		923	END ConstTypeDeclaration;
		924
		925
		926	PROCEDURE VarDeclaration (parser: PARSER);
		927	VAR
7693	akron1	928	ident: PROG.IDENT;
		929	name: SCAN.IDENT;
8097	maxcodehac	930	t: PROG._TYPE;
7597	akron1	931
		932	BEGIN
		933
		934	REPEAT
		935	ident := IdentDef(parser, PROG.idVAR, name);
		936
		937	IF parser.sym = SCAN.lxCOMMA THEN
		938	ExpectSym(parser, SCAN.lxIDENT)
		939	ELSIF parser.sym = SCAN.lxCOLON THEN
		940	Next(parser);
8097	maxcodehac	941	_type(parser, t, {});
7693	akron1	942	PROG.setVarsType(parser.unit, t);
7597	akron1	943	checklex(parser, SCAN.lxSEMI);
		944	Next(parser)
		945	ELSE
		946	checklex(parser, SCAN.lxCOLON)
		947	END
		948
		949	UNTIL parser.sym # SCAN.lxIDENT
		950
		951	END VarDeclaration;
		952
		953
		954	PROCEDURE DeclarationSequence (parser: PARSER): BOOLEAN;
		955	VAR
		956	ptr: PROG.FRWPTR;
		957	endmod: BOOLEAN;
7693	akron1	958	pos: POSITION;
7597	akron1	959
		960
		961	PROCEDURE ProcDeclaration (parser: PARSER): BOOLEAN;
		962	VAR
		963	proc: PROG.IDENT;
		964	endname,
		965	name: SCAN.IDENT;
7693	akron1	966	param: PROG.PARAM;
7597	akron1	967	unit: PROG.UNIT;
		968	ident: PROG.IDENT;
		969	e: EXPR;
7693	akron1	970	pos, pos1,
		971	pos2: POSITION;
7597	akron1	972	label: INTEGER;
7693	akron1	973	enter: IL.COMMAND;
7597	akron1	974	call: INTEGER;
8097	maxcodehac	975	t: PROG._TYPE;
		976	_import: IL.IMPORT_PROC;
7597	akron1	977	endmod, b: BOOLEAN;
		978	fparams: SET;
		979	int, flt: INTEGER;
7693	akron1	980	comma: BOOLEAN;
7983	leency	981	code, iv: ARITH.VALUE;
		982	codeProc,
		983	handler: BOOLEAN;
8859	leency	984	line: INTEGER;
7597	akron1	985
		986	BEGIN
		987	endmod := FALSE;
7983	leency	988	handler := FALSE;
7597	akron1	989
		990	unit := parser.unit;
		991
8097	maxcodehac	992	call := procflag(parser, _import, TRUE);
7597	akron1	993
		994	getpos(parser, pos);
7693	akron1	995	pos1 := pos;
7597	akron1	996	checklex(parser, SCAN.lxIDENT);
8859	leency	997	line := pos.line;
7597	akron1	998
8097	maxcodehac	999	IF _import # NIL THEN
7597	akron1	1000	proc := IdentDef(parser, PROG.idIMP, name);
8097	maxcodehac	1001	proc._import := _import;
		1002	IF _import.name = "" THEN
8859	leency	1003	COPY(name.s, _import.name)
8097	maxcodehac	1004	END;
		1005	PROG.program.procs.last(PROG.PROC)._import := _import
7597	akron1	1006	ELSE
		1007	proc := IdentDef(parser, PROG.idPROC, name)
		1008	END;
		1009
7693	akron1	1010	check(PROG.openScope(unit, proc.proc), pos, 116);
7597	akron1	1011
8097	maxcodehac	1012	proc._type := PROG.enterType(PROG.tPROCEDURE, TARGETS.AdrSize, 0, unit);
		1013	t := proc._type;
7983	leency	1014	t.align := TARGETS.AdrSize;
7693	akron1	1015	t.call := call;
7597	akron1	1016
		1017	FormalParameters(parser, t);
7693	akron1	1018
7983	leency	1019	IF parser.sym = SCAN.lxLSQUARE THEN
		1020	getpos(parser, pos2);
8859	leency	1021	check((TARGETS.CPU = TARGETS.cpuTHUMB) & (TARGETS.OS = TARGETS.osNONE), pos2, 24);
7983	leency	1022	Next(parser);
		1023	getpos(parser, pos2);
		1024	ConstExpression(parser, iv);
		1025	check(iv.typ = ARITH.tINTEGER, pos2, 43);
		1026	check((0 <= ARITH.Int(iv)) & (ARITH.Int(iv) <= THUMB.maxIVT), pos2, 46);
		1027	check(THUMB.SetIV(ARITH.Int(iv)), pos2, 121);
		1028	checklex(parser, SCAN.lxRSQUARE);
		1029	Next(parser);
		1030	handler := TRUE
		1031	END;
		1032
7693	akron1	1033	codeProc := call IN {PROG.code, PROG._code};
		1034
7597	akron1	1035	IF call IN {PROG.systemv, PROG._systemv} THEN
7693	akron1	1036	check(t.parSize <= PROG.MAXSYSVPARAM, pos, 120)
7597	akron1	1037	END;
		1038
7693	akron1	1039	param := t.params.first(PROG.PARAM);
7597	akron1	1040	WHILE param # NIL DO
7693	akron1	1041	ident := PROG.addIdent(unit, param.name, PROG.idPARAM);
7597	akron1	1042	ASSERT(ident # NIL);
8097	maxcodehac	1043	ident._type := param._type;
7693	akron1	1044	ident.offset := param.offset;
		1045	IF param.vPar THEN
7597	akron1	1046	ident.typ := PROG.idVPAR
		1047	END;
7693	akron1	1048	param := param.next(PROG.PARAM)
7597	akron1	1049	END;
		1050
8097	maxcodehac	1051	IF _import = NIL THEN
7693	akron1	1052	label := IL.NewLabel();
7983	leency	1053	proc.proc.label := label;
		1054	proc.proc.used := handler;
		1055	IF handler THEN
		1056	IL.AddCmd2(IL.opHANDLER, label, ARITH.Int(iv))
		1057	END
7693	akron1	1058	END;
		1059
		1060	IF codeProc THEN
		1061	enter := IL.EnterC(label);
		1062	comma := FALSE;
		1063	WHILE (parser.sym # SCAN.lxSEMI) OR comma DO
		1064	getpos(parser, pos2);
		1065	ConstExpression(parser, code);
		1066	check(code.typ = ARITH.tINTEGER, pos2, 43);
8097	maxcodehac	1067	IF TARGETS.WordSize > TARGETS.InstrSize THEN
		1068	CASE TARGETS.InstrSize OF
		1069	\|1: check(ARITH.range(code, 0, 255), pos, 42)
		1070	\|2: check(ARITH.range(code, 0, 65535), pos, 110)
		1071	END
7693	akron1	1072	END;
		1073	IL.AddCmd(IL.opCODE, ARITH.getInt(code));
		1074	comma := parser.sym = SCAN.lxCOMMA;
		1075	IF comma THEN
		1076	Next(parser)
		1077	ELSE
		1078	checklex(parser, SCAN.lxSEMI)
		1079	END
		1080	END
		1081	END;
		1082
7597	akron1	1083	checklex(parser, SCAN.lxSEMI);
		1084	Next(parser);
		1085
8097	maxcodehac	1086	IF _import = NIL THEN
7597	akron1	1087
7983	leency	1088	IF parser.main & proc.export & TARGETS.Dll THEN
		1089	IF TARGETS.target = TARGETS.KolibriOSDLL THEN
7693	akron1	1090	check((proc.name.s # "lib_init") & (proc.name.s # "version"), pos, 114)
7597	akron1	1091	END;
7693	akron1	1092	IL.AddExp(label, proc.name.s);
7597	akron1	1093	proc.proc.used := TRUE
		1094	END;
		1095
7693	akron1	1096	IF ~codeProc THEN
		1097	b := DeclarationSequence(parser)
		1098	END;
7597	akron1	1099
8097	maxcodehac	1100	PROG.ResetLocSize;
7597	akron1	1101	IF call IN {PROG._win64, PROG.win64} THEN
8097	maxcodehac	1102	fparams := PROG.getFloatParamsPos(proc._type, 3, int, flt);
		1103	enter := IL.Enter(label, LSL(ORD(fparams), 5) + MIN(proc._type.parSize, 4))
7597	akron1	1104	ELSIF call IN {PROG._systemv, PROG.systemv} THEN
8097	maxcodehac	1105	fparams := PROG.getFloatParamsPos(proc._type, PROG.MAXSYSVPARAM - 1, int, flt);
		1106	enter := IL.Enter(label, -(LSL(ORD(fparams), 5) + proc._type.parSize))
7693	akron1	1107	ELSIF codeProc THEN
		1108
7597	akron1	1109	ELSE
7693	akron1	1110	enter := IL.Enter(label, 0)
7597	akron1	1111	END;
		1112	proc.proc.enter := enter;
		1113
7693	akron1	1114	IF ~codeProc & (parser.sym = SCAN.lxBEGIN) THEN
7597	akron1	1115	Next(parser);
		1116	parser.StatSeq(parser)
		1117	END;
		1118
7693	akron1	1119	IF ~codeProc & (t.base # NIL) THEN
7597	akron1	1120	checklex(parser, SCAN.lxRETURN);
		1121	NextPos(parser, pos);
		1122	parser.expression(parser, e);
7693	akron1	1123	check(parser.chkreturn(parser, e, t.base, pos), pos, 87)
7597	akron1	1124	END;
		1125
7693	akron1	1126	IF ~codeProc THEN
8097	maxcodehac	1127	proc.proc.leave := IL.Leave(t.base # NIL, (t.base # NIL) & (t.base.typ = PROG.tREAL), PROG.program.locsize,
7693	akron1	1128	t.parSize * ORD((t.call IN PROG.callee_clean_up) OR (t.call IN {PROG.systemv, PROG._systemv})));
8097	maxcodehac	1129	enter.param2 := PROG.program.locsize;
7693	akron1	1130	checklex(parser, SCAN.lxEND)
		1131	ELSE
		1132	proc.proc.leave := IL.LeaveC()
		1133	END;
		1134
8859	leency	1135	IF (TARGETS.CPU = TARGETS.cpuMSP430) & ~codeProc THEN
		1136	check(MSP430.CheckProcDataSize(enter.param2 + proc._type.parSize, PROG.program.options.ram), pos1, 63);
		1137	enter.param2 := enter.param2 * 65536 + line;
		1138	enter.param3 := IL.codes.errlabels[10]
7693	akron1	1139	END
7597	akron1	1140	END;
		1141
		1142	IF parser.sym = SCAN.lxEND THEN
8097	maxcodehac	1143	Next(parser);
		1144	IF parser.sym = SCAN.lxIDENT THEN
		1145	getpos(parser, pos);
		1146	endname := parser.lex.ident;
		1147	IF ~codeProc & (_import = NIL) THEN
8859	leency	1148	check(PROG.IdEq(endname, name), pos, 60);
7597	akron1	1149	ExpectSym(parser, SCAN.lxSEMI);
		1150	Next(parser)
		1151	ELSE
8859	leency	1152	IF PROG.IdEq(endname, parser.unit.name) THEN
8097	maxcodehac	1153	ExpectSym(parser, SCAN.lxPOINT);
		1154	Next(parser);
		1155	endmod := TRUE
8859	leency	1156	ELSIF PROG.IdEq(endname, name) THEN
8097	maxcodehac	1157	ExpectSym(parser, SCAN.lxSEMI);
		1158	Next(parser)
		1159	ELSE
		1160	error(pos, 60)
		1161	END
7597	akron1	1162	END
8097	maxcodehac	1163	ELSIF parser.sym = SCAN.lxSEMI THEN
		1164	Next(parser)
		1165	ELSE
		1166	checklex(parser, SCAN.lxIDENT)
7597	akron1	1167	END
		1168	END;
		1169
8859	leency	1170	PROG.closeScope(unit);
7597	akron1	1171
		1172	RETURN endmod
		1173	END ProcDeclaration;
		1174
		1175
		1176	BEGIN
		1177	IF parser.sym = SCAN.lxCONST THEN
		1178	Next(parser);
		1179	WHILE parser.sym = SCAN.lxIDENT DO
		1180	ConstTypeDeclaration(parser, TRUE)
		1181	END
		1182	END;
		1183
		1184	IF parser.sym = SCAN.lxTYPE THEN
		1185	Next(parser);
		1186	WHILE parser.sym = SCAN.lxIDENT DO
		1187	ConstTypeDeclaration(parser, FALSE)
		1188	END
		1189	END;
		1190
7693	akron1	1191	ptr := PROG.linkPtr(parser.unit);
7597	akron1	1192	IF ptr # NIL THEN
7693	akron1	1193	pos.line := ptr.pos.line;
		1194	pos.col := ptr.pos.col;
		1195	pos.parser := parser;
7597	akron1	1196	IF ptr.notRecord THEN
7693	akron1	1197	error(pos, 58)
7597	akron1	1198	ELSE
7693	akron1	1199	error(pos, 48)
7597	akron1	1200	END
		1201	END;
		1202
		1203	IF parser.sym = SCAN.lxVAR THEN
		1204	Next(parser);
		1205	IF parser.sym = SCAN.lxIDENT THEN
		1206	VarDeclaration(parser)
		1207	END
		1208	END;
		1209
		1210	endmod := FALSE;
		1211	WHILE ~endmod & (parser.sym = SCAN.lxPROCEDURE) DO
		1212	Next(parser);
		1213	endmod := ProcDeclaration(parser)
		1214	END
		1215
		1216	RETURN endmod
		1217	END DeclarationSequence;
		1218
		1219
		1220	PROCEDURE parse (parser: PARSER);
		1221	VAR
7693	akron1	1222	unit: PROG.UNIT;
		1223	label: INTEGER;
		1224	name: INTEGER;
		1225	endmod: BOOLEAN;
		1226	errlabel: INTEGER;
		1227	errno: INTEGER;
7597	akron1	1228
		1229	BEGIN
		1230	ASSERT(parser # NIL);
		1231	ASSERT(parser.scanner # NIL);
		1232
		1233	ExpectSym(parser, SCAN.lxMODULE);
		1234	ExpectSym(parser, SCAN.lxIDENT);
		1235
		1236	IF ~parser.main THEN
8859	leency	1237	check1(parser.lex.ident.s = parser.modname, parser, 23)
7597	akron1	1238	END;
		1239
8097	maxcodehac	1240	unit := PROG.newUnit(parser.lex.ident);
8859	leency	1241	unit.fname := parser.fname;
7597	akron1	1242	parser.unit := unit;
		1243
		1244	ExpectSym(parser, SCAN.lxSEMI);
		1245
		1246	Next(parser);
		1247	IF parser.sym = SCAN.lxIMPORT THEN
		1248	ImportList(parser)
		1249	END;
		1250
7983	leency	1251	INC(modules);
		1252
		1253	CONSOLE.String("compiling ");
8097	maxcodehac	1254	CONSOLE.String("("); CONSOLE.Int(modules); CONSOLE.String(") ");
7983	leency	1255	CONSOLE.String(unit.name.s);
7597	akron1	1256	IF parser.unit.sysimport THEN
		1257	CONSOLE.String(" (SYSTEM)")
		1258	END;
		1259	CONSOLE.Ln;
		1260
8097	maxcodehac	1261	IF TARGETS.CPU IN {TARGETS.cpuX86, TARGETS.cpuAMD64} THEN
		1262	IL.fname(parser.fname)
		1263	END;
		1264
7693	akron1	1265	label := IL.NewLabel();
8859	leency	1266	IL.Jmp(IL.opJMP, label);
7597	akron1	1267
7693	akron1	1268	name := IL.putstr(unit.name.s);
7597	akron1	1269
7693	akron1	1270	errlabel := IL.NewLabel();
		1271	IL.SetLabel(errlabel);
		1272	IL.StrAdr(name);
		1273	IL.Param1;
8097	maxcodehac	1274	IL.AddCmd(IL.opPUSHC, modules);
7693	akron1	1275	IL.AddCmd0(IL.opERR);
7597	akron1	1276
7693	akron1	1277	FOR errno := 1 TO LEN(IL.codes.errlabels) - 1 DO
		1278	IL.SetErrLabel(errno);
		1279	IL.AddCmd(IL.opPUSHC, errno);
8859	leency	1280	IL.Jmp(IL.opJMP, errlabel)
7693	akron1	1281	END;
		1282
7597	akron1	1283	endmod := DeclarationSequence(parser);
		1284
7693	akron1	1285	IL.SetLabel(label);
7597	akron1	1286
		1287	IF ~endmod THEN
		1288
		1289	IF parser.sym = SCAN.lxBEGIN THEN
		1290	Next(parser);
		1291	parser.StatSeq(parser)
		1292	END;
		1293
		1294	checklex(parser, SCAN.lxEND);
		1295
		1296	ExpectSym(parser, SCAN.lxIDENT);
8859	leency	1297	check1(parser.lex.ident.s = unit.name.s, parser, 25);
7597	akron1	1298	ExpectSym(parser, SCAN.lxPOINT)
		1299	END;
		1300
7696	akron1	1301	INC(lines, parser.lex.pos.line);
7693	akron1	1302	PROG.closeUnit(unit)
7597	akron1	1303	END parse;
		1304
		1305
8859	leency	1306	PROCEDURE open (parser: PARSER; modname, FileExt: ARRAY OF CHAR): BOOLEAN;
7597	akron1	1307	BEGIN
		1308	ASSERT(parser # NIL);
		1309
		1310	STRINGS.append(parser.fname, modname);
8859	leency	1311	STRINGS.append(parser.fname, FileExt);
7597	akron1	1312	STRINGS.append(parser.modname, modname);
		1313
		1314	parser.scanner := SCAN.open(parser.fname)
		1315
		1316	RETURN parser.scanner # NIL
		1317	END open;
		1318
		1319
		1320	PROCEDURE NewParser (): PARSER;
		1321	VAR
		1322	pars: PARSER;
		1323	citem: C.ITEM;
		1324
		1325	BEGIN
		1326	citem := C.pop(parsers);
		1327	IF citem = NIL THEN
		1328	NEW(pars)
		1329	ELSE
		1330	pars := citem(PARSER)
		1331	END
		1332
		1333	RETURN pars
		1334	END NewParser;
		1335
		1336
		1337	PROCEDURE create* (path, lib_path: PATH; StatSeq: STATPROC; expression, designator: EXPRPROC; chkreturn: RETPROC): PARSER;
		1338	VAR
		1339	parser: PARSER;
		1340
		1341	BEGIN
		1342	parser := NewParser();
		1343
		1344	parser.path := path;
		1345	parser.lib_path := lib_path;
7983	leency	1346	parser.ext := UTILS.FILE_EXT;
7597	akron1	1347	parser.fname := path;
		1348	parser.modname := "";
		1349	parser.scanner := NIL;
		1350	parser.unit := NIL;
		1351	parser.constexp := FALSE;
		1352	parser.main := FALSE;
		1353
		1354	parser.open := open;
		1355	parser.parse := parse;
		1356	parser.StatSeq := StatSeq;
		1357	parser.expression := expression;
		1358	parser.designator := designator;
		1359	parser.chkreturn := chkreturn;
		1360	parser.create := create
		1361
		1362	RETURN parser
		1363	END create;
		1364
		1365
7983	leency	1366	PROCEDURE init* (options: PROG.OPTIONS);
7597	akron1	1367	BEGIN
8097	maxcodehac	1368	PROG.create(options);
7696	akron1	1369	parsers := C.create();
7983	leency	1370	lines := 0;
		1371	modules := 0
7597	akron1	1372	END init;
		1373
		1374
7983	leency	1375	END PARS.

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(root)/programs/develop/oberon07/source/PARS.ob07 – Rev 8859