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mjc2wsl - new option to toggle locals as array or separate
[mjc2wsl.git] / src / com / quemaster / transformations / mjc2wsl / mjc2wsl.java
1 package com.quemaster.transformations.mjc2wsl;
2 /*
3 Copyright (C) 2014,2015, 2016 Doni Pracner
4
5 This file is part of mjc2wsl.
6
7 mjc2wsl is free software: you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation, either version 3 of the License, or
10 (at your option) any later version.
11
12 mjc2wsl is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with mjc2wsl. If not, see <http://www.gnu.org/licenses/>.
19 */
20 import java.io.File;
21 import java.io.FileInputStream;
22 import java.io.IOException;
23 import java.io.InputStream;
24 import java.io.PrintWriter;
25 import java.nio.file.FileSystems;
26 import java.nio.file.Files;
27 import java.nio.file.Path;
28 import java.util.Calendar;
29 import java.util.Properties;
30
31 import com.quemaster.transformations.TransMessages;
32
33 /**
34 * This program converts file from compiled MicroJava bytecode to WSL language
35 * which is a part of the FermaT Transformation system. MicroJava is a subset
36 * used in Compiler Construction courses by Hanspeter Moessenboeck, not
37 * "Java ME".
38 *
39 * @author Doni Pracner, http://perun.dmi.rs/pracner http://quemaster.com
40 */
41 public class mjc2wsl{
42 //default version name, used if the file is not found
43 private static String versionN = "v0.2.x";
44
45 private String versionFile = "version.properties";
46
47 private TransMessages messages = new TransMessages();
48
49 private boolean genPauseAfterEachAddress=false,
50 genPrintForEachAddress = false,
51 genPrintEStackOnChange = false;
52
53 private boolean genPopPush=false;
54
55 private boolean genInlinePrint = false;
56
57 private boolean genLocalVars = true;
58
59 // make an array for all local variables OTHERWISE make them separate
60 private boolean genLocalsAsArray = true;
61
62 /** Constant used for marking a regular comment from the original file */
63 public static final char C_REG = ' ';
64 /**
65 * Constant used for marking when original code is inserted in the file,
66 * next to the translations
67 */
68 public static final char C_OC = '#';
69 /** Constant used for marking special messages from the translator */
70 public static final char C_SPEC = '&';
71 /** Constant used for marking error messages from the translator */
72 public static final char C_ERR = '!';
73
74 /** instruction code in MicroJava bytecode. */
75 public static final int
76 load = 1,
77 load_0 = 2,
78 load_1 = 3,
79 load_2 = 4,
80 load_3 = 5,
81 store = 6,
82 store_0 = 7,
83 store_1 = 8,
84 store_2 = 9,
85 store_3 = 10,
86 getstatic = 11,
87 putstatic = 12,
88 getfield = 13,
89 putfield = 14,
90 const_0 = 15,
91 const_1 = 16,
92 const_2 = 17,
93 const_3 = 18,
94 const_4 = 19,
95 const_5 = 20,
96 const_m1 = 21,
97 const_ = 22,
98 add = 23,
99 sub = 24,
100 mul = 25,
101 div = 26,
102 rem = 27,
103 neg = 28,
104 shl = 29,
105 shr = 30,
106 inc = 31,
107 new_ = 32,
108 newarray = 33,
109 aload = 34,
110 astore = 35,
111 baload = 36,
112 bastore = 37,
113 arraylength = 38,
114 pop = 39,
115 dup = 40,
116 dup2 = 41,
117 jmp = 42,
118 jeq = 43,
119 jne = 44,
120 jlt = 45,
121 jle = 46,
122 jgt = 47,
123 jge = 48,
124 call = 49,
125 return_ = 50,
126 enter = 51,
127 exit = 52,
128 read = 53,
129 print = 54,
130 bread = 55,
131 bprint = 56,
132 trap = 57;
133
134 private boolean originalInComments = false;
135
136 private Properties versionData;
137
138 private String getVersion() {
139 if (versionData == null) {
140 versionData = new Properties();
141 try {
142 versionData.load(getClass().getResourceAsStream(versionFile));
143 } catch (IOException | NullPointerException e) {
144 // it doesn't matter
145 //e.printStackTrace();
146 }
147 }
148 String ver = versionData.getProperty("version");
149 if (ver != null)
150 return ver;
151 else
152 return versionN;
153 }
154
155 MicroJavaInput mjInput = new MicroJavaInput();
156
157 private PrintWriter out = null;
158
159
160 private void pr(int i){
161 out.print(i);
162 }
163
164 private void pr(char i){
165 out.print(i);
166 }
167
168 private void pr(String i){
169 out.print(i);
170 }
171
172 private void prl(String i){
173 out.println(i);
174 }
175
176 public String createStandardStart(){
177 return createStandardStart(10);
178 }
179
180 public String createStandardStart(int numWords){
181 StringBuilder ret = new StringBuilder(
182 "C:\" This file automatically converted from microjava bytecode\";\n"
183 +"C:\" with mjc2wsl "+getVersion()+"\";\n");
184
185 ret.append("\nBEGIN");
186 ret.append("\nVAR <\n\t");
187 if (!genLocalVars){
188 ret.append("\n\ttempa := 0, tempb :=0, tempres := 0,");
189 } else
190 ret.append("\n\tmjvm_flag_jump := 0,");
191
192 if (genLocalsAsArray)
193 ret.append("mjvm_locals := ARRAY(1,0),");
194
195 ret.append("\n\tmjvm_statics := ARRAY("+numWords+",0),");
196 ret.append("\n\tmjvm_arrays := < >,");
197 ret.append("\n\tmjvm_objects := < >,");
198 ret.append("\n\tmjvm_estack := < >, mjvm_mstack := < > > :");
199
200 return ret.toString();
201 }
202
203 public String createAsciiString(){
204 StringBuilder ret = new StringBuilder("C:\"char array for ascii code conversions\";");
205 ret.append("\nascii := \"????????????????????????????????\"++\n");
206 ret.append("\" !\"++Quote++\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~\";\n");
207
208 return ret.toString();
209 }
210
211 public String createStandardEnd(){
212 StringBuilder ret = new StringBuilder("SKIP\nENDVAR\n");
213 ret.append("\nWHERE\n");
214
215 ret.append("\nFUNCT CHR(num) ==:\n");
216 ret.append("\t(@List_To_String(< num >))\n");
217 ret.append("END\n");
218
219 if (!genInlinePrint) {
220 ret.append("\nPROC Print_MJ(val, format VAR)==\n");
221 ret.append("PRINFLUSH(@Format(format, val ))");
222 ret.append("\nEND\n");
223
224 ret.append("\nPROC Print_MJ_CHAR(val, format VAR)==\n");
225 ret.append("PRINFLUSH(@Format(format, CHR(val)))");
226 ret.append("\nEND\n");
227 }
228
229 ret.append("\nEND");
230 return ret.toString();
231 }
232
233 private String createStartVar(String... vars){
234 if (genLocalVars) {
235 StringBuilder ret = new StringBuilder("VAR < ");
236 ret.append(vars[0] + " := 0");
237 for (int i = 1; i < vars.length; i++)
238 ret.append(", " + vars[i] + " := 0");
239 ret.append(" > : ");
240
241 return ret.toString();
242 }
243 return "";
244 }
245
246 private String createEndVar(){
247 if (genLocalVars)
248 return "ENDVAR;";
249 else
250 return "";
251 }
252
253 private String createLocal(int i) {
254 // arrays start at 1 in WSL, so we need an offset
255 if (genLocalsAsArray)
256 return "mjvm_locals[" + (i + 1) + "]";
257 else
258 return "mjvm_locals_" + i;
259 }
260
261 private String createStatic(int i) {
262 return "mjvm_statics[" + (i + 1) + "]";
263 }
264
265 private String createArray(int i) {
266 return "mjvm_arrays[" + i + "]";
267 }
268
269 private String createArray(String i) {
270 return "mjvm_arrays[" + i + "]";
271 }
272
273 private String createObject(String i) {
274 return "mjvm_objects[" + i + "]";
275 }
276
277 /**
278 * Creates a WSL comment with care to quote chars.
279 */
280 public static String createComment(String str){
281 return createComment(str, C_REG);
282 }
283
284 /**
285 * Creates a WSL comment with care to quote chars, of the
286 * given type. Types are given as char constants. They can be
287 * default comments, comments that contain the original code
288 * in them, or additional comments regarding the translation
289 * process.
290 */
291 public static String createComment(String str, char type) {
292 return "C:\"" + type + str.replace("\"", "''") + "\";";
293 }
294
295 // generalised stack operations
296
297 private String createToStack(String stack, String var){
298 if (genPopPush)
299 return "PUSH("+stack+"," + var + ");";
300 else
301 return stack + " := <" + var + " > ++ " + stack +";";
302 }
303
304 private String createFromStack(String stack, String var){
305 if (genPopPush)
306 return "POP("+ var + ", "+stack+");";
307 else
308 return var + ":= HEAD("+stack+"); "+stack+" := TAIL("+stack+");";
309 }
310 //Expression stack
311
312 private String createToEStack(int i) {
313 return createToEStack(i+"");
314 }
315
316 private String createToEStack(String i) {
317 String res = createToStack("mjvm_estack", i);
318 if (genPrintEStackOnChange)
319 res += "PRINT(\"eStack\",mjvm_estack);";
320 return res;
321 }
322
323 private String createFromEStack(String st) {
324 String res = createFromStack("mjvm_estack",st);
325 if (genPrintEStackOnChange)
326 res += "PRINT(\"eStack\",mjvm_estack);";
327 return res;
328 }
329
330 private String createPopEStack() {
331 String res = "mjvm_estack := TAIL(mjvm_estack);";
332 if (genPrintEStackOnChange)
333 res += "PRINT(\"eStack\",mjvm_estack);";
334 return res;
335 }
336
337 private String createTopTwoEStack() {
338 return createFromEStack("tempa") + "\n" + createFromEStack("tempb");
339 }
340
341 private String createTopEStack() {
342 return createFromEStack("tempa");
343 }
344
345 //Method stack
346
347 private String createToMStack(int i) {
348 return createToMStack(i+"");
349 }
350
351 private String createToMStack(String i) {
352 return createToStack("mjvm_mstack", i);
353 }
354
355 private String createFromMStack(String st) {
356 return createFromStack("mjvm_mstack", st);
357 }
358
359 public void convertStream(InputStream ins) throws Exception{
360 mjInput.setStream(ins);
361 //process start
362 mjInput.processHeader(this);
363
364 prl(createStandardStart(mjInput.getNumberOfWords(this)));
365 prl("SKIP;\n ACTIONS a" + (14 + mjInput.getMainAdr(this)) + " :");
366
367 // the number of Locals for procedures; need to remember it for exits
368 int numberOfLocals = 0;
369
370 int op = mjInput.get();
371 while (op >= 0) {
372 prl(" a" + mjInput.getCounter() + " ==");
373 if (originalInComments)
374 prl(createComment(mjInput.describeOpCode(op), C_OC));
375 if (genPrintForEachAddress) {
376 prl("PRINT(\"a" + mjInput.getCounter() + "\");");
377 if (genPauseAfterEachAddress)
378 prl("@Read_Line_Proc(VAR debug_disposable_string, Standard_Input_Port);");
379 }
380 switch (op) {
381 case load: {
382 prl(createToEStack(createLocal(mjInput.get())));
383 break;
384 }
385 case load_0:
386 case load_1:
387 case load_2:
388 case load_3: {
389 prl(createStartVar("tempa"));
390 prl("tempa :="+createLocal(op - load_0)+";");
391 prl(createToEStack("tempa"));
392 prl(createEndVar());
393 break;
394 }
395 case store: {
396 prl(createFromEStack(createLocal(mjInput.get())));
397 break;
398 }
399 case store_0:
400 case store_1:
401 case store_2:
402 case store_3: {
403 prl(createStartVar("tempa"));
404 prl(createFromEStack("tempa"));
405 prl(createLocal(op - store_0)+" := tempa;");
406 prl(createEndVar());
407 break;
408 }
409
410 case getstatic: {
411 prl(createToEStack(createStatic(mjInput.get2())));
412 break;
413 }
414 case putstatic: {
415 prl(createFromEStack(createStatic(mjInput.get2())));
416 break;
417 }
418
419 case getfield: {
420 int f = mjInput.get2();
421 prl(createStartVar("tempa"));
422 prl(createTopEStack());
423 prl(createToEStack(createObject("tempa") + "[" + (f + 1) + "]"));
424 prl(createEndVar());
425 break;
426 }
427 case putfield: {
428 int f = mjInput.get2();
429 prl(createStartVar("tempa", "tempb"));
430 prl(createTopTwoEStack());
431 prl(createObject("tempb") + "[" + (f + 1) + "]:=tempa;");
432 prl(createEndVar());
433 break;
434 }
435
436 case const_: {
437 prl(createToEStack(mjInput.get4()));
438 break;
439 }
440
441 case const_m1: {
442 prl(createToEStack(-1));
443 break;
444 }
445
446 case const_0:
447 case const_1:
448 case const_2:
449 case const_3:
450 case const_4:
451 case const_5: {
452 prl(createToEStack(op - const_0));
453 break;
454 }
455
456 case add: {
457 prl(createStartVar("tempa", "tempb", "tempres"));
458 prl(createTopTwoEStack());
459 prl("tempres := tempb + tempa;");
460 prl(createToEStack("tempres"));
461 prl(createEndVar());
462 break;
463 }
464 case sub: {
465 prl(createStartVar("tempa", "tempb", "tempres"));
466 prl(createTopTwoEStack());
467 prl("tempres := tempb - tempa;");
468 prl(createToEStack("tempres"));
469 prl(createEndVar());
470 break;
471 }
472 case mul: {
473 prl(createStartVar("tempa", "tempb", "tempres"));
474 prl(createTopTwoEStack());
475 prl("tempres := tempb * tempa;");
476 prl(createToEStack("tempres"));
477 prl(createEndVar());
478 break;
479 }
480 case div: {
481 prl(createStartVar("tempa", "tempb", "tempres"));
482 prl(createTopTwoEStack());
483 prl("IF tempa = 0 THEN ERROR(\"division by zero\") FI;");
484 prl("tempres := tempb DIV tempa;");
485 prl(createToEStack("tempres"));
486 prl(createEndVar());
487 break;
488 }
489 case rem: {
490 prl(createStartVar("tempa", "tempb", "tempres"));
491 prl(createTopTwoEStack());
492 prl("IF tempa = 0 THEN ERROR(\"division by zero\") FI;");
493 prl("tempres := tempb MOD tempa;");
494 prl(createToEStack("tempres"));
495 prl(createEndVar());
496 break;
497 }
498
499 case neg: {
500 prl(createStartVar("tempa"));
501 prl(createTopEStack());
502 prl(createToEStack("-tempa"));
503 prl(createEndVar());
504 break;
505 }
506
507 case shl: {
508 prl(createStartVar("tempa", "tempb"));
509 prl(createTopTwoEStack());
510 prl("VAR <tempres :=tempb, i:=1 >:");
511 prl("\tFOR i:=1 TO tempa STEP 1 DO tempres := tempres * 2 OD;");
512 prl(createToEStack("tempres"));
513 prl("ENDVAR;");
514 prl(createEndVar());
515 break;
516 }
517 case shr: {
518 prl(createStartVar("tempa", "tempb"));
519 prl(createTopTwoEStack());
520 prl("VAR <tempres :=tempb, i:=1 >:");
521 prl("\tFOR i:=1 TO tempa STEP 1 DO tempres := tempres DIV 2 OD;");
522 prl(createToEStack("tempres"));
523 prl("ENDVAR;");
524 prl(createEndVar());
525 break;
526 }
527
528 case inc: {
529 int b1 = mjInput.get(), b2 = mjInput.get();
530 prl(createLocal(b1) + " := " + createLocal(b1) + " + " + b2 + ";");
531 break;
532 }
533
534 case new_: {
535 int size = mjInput.get2();
536 // TODO maybe objects and arrays should be in the same list?
537 prl("mjvm_objects := mjvm_objects ++ < ARRAY(" + size
538 + ",0) >;");
539 prl(createToEStack("LENGTH(mjvm_objects)"));
540 break;
541 }
542 case newarray: {
543 mjInput.get();// 0 - bytes, 1 - words; ignore for now
544 // TODO take into consideration 0/1
545 prl(createStartVar("tempa"));
546 prl(createTopEStack());
547 prl("mjvm_arrays := mjvm_arrays ++ < ARRAY(tempa,0) >;");
548 prl(createToEStack("LENGTH(mjvm_arrays)"));
549 prl(createEndVar());
550 break;
551 }
552
553 case aload:
554 case baload: {
555 prl(createStartVar("tempa", "tempb"));
556 prl(createTopTwoEStack());
557 prl(createToEStack(createArray("tempb") + "[tempa+1]"));
558 prl(createEndVar());
559 break;
560 }
561 case astore:
562 case bastore: {
563 prl(createStartVar("tempa", "tempb", "tempres"));
564 prl(createFromEStack("tempres"));
565 prl(createTopTwoEStack());
566 prl("mjvm_arrays[tempb][tempa+1]:=tempres;");
567 prl(createEndVar());
568 break;
569 }
570 case arraylength: {
571 prl(createStartVar("tempa", "tempb"));
572 prl(createTopEStack());
573 prl("tempb := LENGTH("+ createArray("tempa") + ");");
574 prl(createToEStack("tempb"));
575 prl(createEndVar());
576 break;
577 }
578
579 case dup: {
580 prl(createStartVar("tempa", "tempb"));
581 prl(createTopEStack());
582 prl(createToEStack("tempa"));
583 prl(createToEStack("tempa"));
584 prl(createEndVar());
585 break;
586 }
587 case dup2: {
588 prl(createStartVar("tempa", "tempb"));
589 prl(createTopTwoEStack());
590 prl(createToEStack("tempb"));
591 prl(createToEStack("tempa"));
592 prl(createToEStack("tempb"));
593 prl(createToEStack("tempa"));
594 prl(createEndVar());
595 break;
596 }
597
598 case pop: {
599 prl(createPopEStack());
600 break;
601 }
602
603 case jmp: {
604 prl("CALL a" + (mjInput.getCounter() + mjInput.get2()) + ";");
605 break;
606 }
607
608 case jeq:
609 case jne:
610 case jlt:
611 case jle:
612 case jgt:
613 case jge: {
614 if (genLocalVars) {
615 prl(createStartVar("tempa", "tempb"));
616 prl(createTopTwoEStack());
617 prl("IF tempb " + mjInput.getRelationFor(op)
618 + " tempa THEN mjvm_flag_jump := 1"
619 + " ELSE mjvm_flag_jump := 0"
620 + " FI;");
621 prl(createEndVar());
622 prl("IF mjvm_flag_jump = 1 THEN CALL a"
623 + (mjInput.getCounter() + mjInput.get2())
624 + " ELSE CALL a" + (mjInput.getCounter() + 1)
625 + " FI;");
626 } else {
627 prl(createTopTwoEStack());
628 prl("IF tempb " + mjInput.getRelationFor(op)
629 + " tempa THEN CALL a"
630 + (mjInput.getCounter() + mjInput.get2())
631 + " ELSE CALL a" + (mjInput.getCounter() + 1)
632 + " FI;");
633 }
634 break;
635 }
636
637 case call: {
638 prl("CALL a" + (mjInput.getCounter() + mjInput.get2()) + ";");
639 break;
640 }
641
642 case return_: {
643 // we let the actions return
644 // there is nothing to clean up
645 prl("SKIP\n END\n b" + mjInput.getCounter() + " ==");
646 break;
647 }
648 case enter: {
649 int parameters = mjInput.get();
650
651 numberOfLocals = mjInput.get();
652 if (genLocalsAsArray) {
653 prl(createToMStack("mjvm_locals"));
654 prl("mjvm_locals := ARRAY(" + numberOfLocals + ",0);");
655 } else {
656 // TODO maybe we should generate VAR block for these somewhere
657 for (int i = 0; i < numberOfLocals; i++) {
658 prl(createToMStack(createLocal(i)));
659 }
660 }
661
662 for (int i = parameters - 1; i >= 0; i--)
663 prl(createFromEStack(createLocal(i)));
664 break;
665 }
666 case exit: {
667 if (genLocalsAsArray) {
668 prl(createFromMStack("mjvm_locals"));
669 } else {
670 // there are as many locals as defined in the last enter
671 for (int i = numberOfLocals -1; i >= 0; i--)
672 prl(createFromMStack(createLocal(i)));
673 }
674 break;
675 }
676
677 // read, print
678 case bread: {
679 // TODO maybe we'll need a bufer for multi chars!
680 prl(createStartVar("tempa"));
681 prl("@Read_Line_Proc(VAR tempa, Standard_Input_Port);");
682 prl("tempa := @String_To_List(tempa)[1];");
683 prl(createToEStack("tempa"));
684 prl(createEndVar());
685 break;
686 }
687 case read: {
688 prl(createStartVar("tempa"));
689 prl("@Read_Line_Proc(VAR tempa, Standard_Input_Port);");
690 prl("tempa := @String_To_Num(tempa);");
691 prl(createToEStack("tempa"));
692 prl(createEndVar());
693 break;
694 }
695
696 // the prints
697 case bprint: {
698 prl(createStartVar("tempa", "tempb"));
699 prl(createTopTwoEStack());
700 if (genInlinePrint){
701 prl(createComment("print spacing and transformation",C_SPEC));
702 prl("PRINFLUSH(@Format(tempa, @List_To_String(< tempb >)));");
703 } else
704 prl("Print_MJ_CHAR(tempb,tempa);");
705 prl(createEndVar());
706 break;
707 }
708 case print: {
709 prl(createStartVar("tempa", "tempb"));
710
711 prl(createTopTwoEStack());
712 if (genInlinePrint){
713 prl(createComment("print spacing",C_SPEC));
714 prl("PRINFLUSH(@Format(tempa,tempb));");
715 }
716 else
717 prl("Print_MJ(tempb,tempa);");
718 prl(createEndVar());
719 break;
720 }
721
722 case trap: {
723 prl("ERROR(\"Runtime error: trap(" + mjInput.get() + ")\");");
724 break;
725 }
726
727 default:
728 prl(createComment("unknown op error: " + op, C_ERR));
729 messages.message("unknown op error: " + op, TransMessages.M_ERR);
730 break;
731 }
732
733 boolean wasJump = mjInput.isJumpCode(op);
734 op = mjInput.get();
735 if (op >= 0)
736 if (wasJump)
737 prl("SKIP\n END");
738 else
739 prl("CALL a" + mjInput.getCounter() + "\n END");
740 }
741 prl("SKIP\n END\nENDACTIONS;\n");
742 pr(createStandardEnd());
743 }
744
745 public void convertFile(File f) {
746 try {
747 convertStream(new FileInputStream(f));
748 } catch (Exception ex) {
749 ex.printStackTrace();
750 }
751 }
752
753 public void printHelp() {
754 printVersion();
755 printUsage();
756 printHelpOutput();
757 printHelpHelp();
758 }
759
760 public void printLongHelp() {
761 printVersion();
762 printUsage();
763 System.out.println();
764 printHelpOutput();
765 System.out.println();
766 printHelpDirectives();
767 System.out.println();
768 printHelpGenerating();
769 System.out.println();
770 printHelpHelp();
771 }
772
773 public void printHelpOutput() {
774 System.out.println("Output options:");
775 System.out.println(" --screen print output to screen");
776 System.out.println(" -o --oc[+-] include original code in comments");
777 System.out.println(" -v verbose, print warning messages");
778 System.out.println(" -q quiet; don't print even the error messages");
779 System.out.println(" -d print detailed debug messages");
780 }
781
782 public void printHelpGenerating() {
783 System.out.println("Options for generating extra code for tracking code execution");
784 System.out.println(" --genEStackPrint generate print for all EStack changes");
785 System.out.println(" --genAddrPrint generate prints after every address of the original code ");
786 System.out.println(" --genAddrPause generate a pause after every address of the original code ");
787 System.out.println(" --genAddr short for --genAddrPrint and --genAddrPause");
788 System.out.println(" --genAll short for applying all code generation");
789 }
790
791 public void printHelpDirectives(){
792 System.out.println("Alternatives for code generation (* are the defaults):");
793 System.out.print(genPopPush?'*':' ');
794 System.out.println(" --genPopPush generate POP/PUSH instead of TAIL/HEAD");
795 System.out.print(!genPopPush?'*':' ');
796 System.out.println(" --genHeadTail generate TAIL/HEAD instead of POP/PUSH ");
797 System.out.println();
798 System.out.print(genInlinePrint?'*':' ');
799 System.out.println(" --genInlinePrint generate prints directly instead of procedure calls");
800 System.out.print(!genInlinePrint?'*':' ');
801 System.out.println(" --genProcedurePrint generate prints as custom procedure calls");
802 System.out.println();
803 System.out.print(genLocalVars?'*':' ');
804 System.out.println(" --genLocalVars generate local VAR block for temp variables");
805 System.out.print(!genLocalVars?'*':' ');
806 System.out.println(" --genGlobalVars do NOT generate local VAR block for temp variables");
807 System.out.println();
808 System.out.print(genLocalsAsArray?'*':' ');
809 System.out.println(" --genLocalsAsArray generate local variables as an array");
810 System.out.print(!genLocalsAsArray?'*':' ');
811 System.out.println(" --genLocalsSeparate generate local variables as separate entities");
812 }
813
814 public void printHelpHelp() {
815 System.out.println("Help and info options");
816 System.out.println(" -h basic help");
817 System.out.println(" --help print more detailed help");
818 System.out.println(" --version or -version print version and exit");
819 }
820
821 public void printUsage(){
822 System.out.println("usage:\n\t mjc2wsl {options} filename [outfile]");
823 }
824
825 public void printVersion() {
826 System.out.println("MicroJava bytecode to WSL converter " + getVersion()
827 + ", by Doni Pracner");
828 }
829
830 public String makeDefaultOutName(String inname){
831 String rez = inname;
832 if (inname.endsWith(".obj"))
833 rez = rez.substring(0, rez.length() - 4);
834 return rez + ".wsl";
835 }
836
837 public void run(String[] args) {
838 if (args.length == 0) {
839 printHelp();
840 } else {
841 int i = 0;
842 while (i < args.length && args[i].length() > 0 && args[i].charAt(0) == '-') {
843 if (args[i].compareTo("-h") == 0) {
844 printHelp();
845 return;
846 } else if (args[i].compareTo("--help") == 0) {
847 printLongHelp();
848 return;
849 } else if (args[i].compareTo("--version") == 0
850 || args[i].compareTo("-version") == 0) {
851 printVersion();
852 return;
853 } else if (args[i].compareTo("-o") == 0
854 || args[i].startsWith("--oc")) {
855 if (args[i].length() == 2)
856 originalInComments = true;
857 else if (args[i].length() == 5)
858 originalInComments = args[i].charAt(4) == '+';
859 else
860 originalInComments = true;
861 } else if (args[i].compareTo("--screen") == 0) {
862 out = new PrintWriter(System.out);
863 } else if (args[i].compareTo("-d") == 0) {
864 messages.setPrintLevel(TransMessages.M_DEB);// print debug info
865 } else if (args[i].compareTo("-v") == 0) {
866 messages.setPrintLevel(TransMessages.M_WAR);// print warnings
867 } else if (args[i].compareTo("-q") == 0) {
868 messages.setPrintLevel(TransMessages.M_QUIET);// no printing
869 } else if (args[i].compareToIgnoreCase("--genEStackPrint") == 0) {
870 genPrintEStackOnChange = true;
871 } else if (args[i].compareToIgnoreCase("--genAddrPause") == 0) {
872 genPauseAfterEachAddress = true;
873 } else if (args[i].compareToIgnoreCase("--genAddrPrint") == 0) {
874 genPrintForEachAddress = true;
875 } else if (args[i].compareToIgnoreCase("--genAddr") == 0) {
876 genPrintForEachAddress = true;
877 genPauseAfterEachAddress = true;
878 } else if (args[i].compareToIgnoreCase("--genAll") == 0) {
879 genPrintEStackOnChange = true;
880 genPrintForEachAddress = true;
881 genPauseAfterEachAddress = true;
882 } else if (args[i].compareToIgnoreCase("--genPopPush") == 0) {
883 genPopPush = true;
884 } else if (args[i].compareToIgnoreCase("--genInlinePrint") == 0) {
885 genInlinePrint = true;
886 } else if (args[i].compareToIgnoreCase("--genHeadTail") == 0) {
887 genPopPush = false;
888 } else if (args[i].compareToIgnoreCase("--genProcedurePrint") == 0) {
889 genInlinePrint = false;
890 } else if (args[i].compareToIgnoreCase("--genLocalVars") == 0) {
891 genLocalVars = true;
892 } else if (args[i].compareToIgnoreCase("--genGlobalVars") == 0) {
893 genLocalVars = false;
894 } else if (args[i].compareToIgnoreCase("--genLocalsAsArray") == 0) {
895 genLocalsAsArray = true;
896 } else if (args[i].compareToIgnoreCase("--genLocalsSeparate") == 0) {
897 genLocalsAsArray = false;
898 } else {
899 System.err.println("unknown option: "+args[i]);
900 }
901 i++;
902 }
903
904 if (i >= args.length) {
905 System.err.println("no filename supplied");
906 System.exit(2);
907 }
908
909 Path p = FileSystems.getDefault().getPath(args[i]);
910 if (!Files.isRegularFile(p)){
911 System.err.println("input file does not exist");
912 System.exit(1);
913 }
914
915 if (i + 1 < args.length) {
916 try {
917 out = new PrintWriter(args[i + 1]);
918 } catch (Exception e) {
919 System.err.println("error in opening out file:");
920 e.printStackTrace();
921 }
922 }
923 if (out == null) {
924 // if not set to screen, or a file, make a default filename
925 try {
926 out = new PrintWriter(makeDefaultOutName(args[i]));
927 } catch (Exception e) {
928 System.err.println("error in opening out file:");
929 e.printStackTrace();
930 }
931 }
932 Calendar now = Calendar.getInstance();
933 try {
934 convertStream(Files.newInputStream(p));
935 } catch (Exception e) {
936 // TODO Auto-generated catch block
937 e.printStackTrace();
938 }
939 long mili = Calendar.getInstance().getTimeInMillis()
940 - now.getTimeInMillis();
941 System.out.println("conversion time:" + mili + " ms");
942 messages.printMessageCounters();
943 out.close();
944 }
945 }
946
947 public static void main(String[] args) {
948 new mjc2wsl().run(args);
949 }
950
951
952 }
MicroJava ByteCode to WSL tool
Svarog.pmf.uns.ac.rs/gitweb maintanance Doni Pracner