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