Java_CodeGen.jrag 30.3 KB
Newer Older
Anders Nilsson's avatar
Anders Nilsson committed
1
2
3
4
5
6
import java.io.*;
import java.util.*;

aspect Java_CodeGenEnv {

  // Environment wrapper for Java-code generation
7
  // handles indentation, file writing,
Anders Nilsson's avatar
Anders Nilsson committed
8
9
10

  public class Java_env {

11
    public final int version;  //labcomm version to generate code for
12
    public final String verStr;
Anders Nilsson's avatar
Anders Nilsson committed
13
14
15
16
17
18
    private int indent;
    private int depth;
    private Java_printer printer;
    private HashMap unique = new HashMap();

    final private class Java_printer {
19

Anders Nilsson's avatar
Anders Nilsson committed
20
21
22
23
      private boolean newline = true;
      private File file;
      private PrintStream out;
      private IOException exception;
24

Anders Nilsson's avatar
Anders Nilsson committed
25
26
27

      public Java_printer(File f) {
  	file = f;
28
29
30
31
        File parentFile = f.getParentFile();
        if(parentFile != null) {
            parentFile.mkdirs();
        }
Anders Nilsson's avatar
Anders Nilsson committed
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
      }

     public Java_printer(PrintStream out) {
        this.out = out;
      }

      public void close() throws IOException {
	if (out != null) {
  	  out.close();
        }
	if (exception != null) {
	  throw exception;
        }
      }

      public PrintStream getPrintStream() {
	return(out);
      }

      public void checkOpen() {
	if (out == null && exception == null) {
          try {
    	    out = new PrintStream(new FileOutputStream(file));
          } catch (IOException e) {
	    exception = e;
          }
        }
      }

      public void print(Java_env env, String s) {
	checkOpen();
        if (newline) {
          newline = false;
          for (int i = 0 ; i < env.indent ; i++) {
            out.print("  ");
          }
        }
        out.print(s);
      }

      public void println(Java_env env, String s) {
	checkOpen();
        print(env, s);
        out.println();
        newline = true;
      }
    }

80
    private Java_env(int version, int indent) {
81
      this.version = version;
82
      this.verStr = LabCommVersion.versionString(version);
Anders Nilsson's avatar
Anders Nilsson committed
83
      this.indent = indent;
84
85
86
87
    }

    private Java_env(int version, Java_printer printer) {
      this(version, 0);
Anders Nilsson's avatar
Anders Nilsson committed
88
89
90
      this.printer = printer;
    }

91
92
    public Java_env(int version, File f) {
      this(version, 0);
Anders Nilsson's avatar
Anders Nilsson committed
93
94
95
      this.printer = new Java_printer(f);
    }

96
97
    public Java_env(int version, PrintStream out) {
      this(version, 0);
Anders Nilsson's avatar
Anders Nilsson committed
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
      this.printer = new Java_printer(out);
    }

    public void close() throws IOException {
      printer.close();
    }

    public PrintStream getPrintStream() {
      return printer.getPrintStream();
    }
    public void indent(int amount) {
      indent += amount;
    }

    public void indent() {
      indent(1);
    }

    public void unindent(int amount) {
      indent -= amount;
    }

    public void unindent() {
      unindent(1);
    }

    public void print(String s) {
      printer.print(this, s);
    }

    public void println(String s) {
      printer.println(this, s);
    }

    public void println() {
      printer.println(this, "");
    }

    public int getDepth() {
      return depth;
    }

    public String print_for_begin(String limit) {
      print("for (int i_" + depth + " = 0 ; ");
      print("i_" + depth + " < " + limit + " ; ");
      println("i_" + depth + "++) {");
      indent();
      depth++;
      return "[i_" + (depth - 1) + "]";
    }

    public void print_for_end() {
      depth--;
      unindent();
      println("}");
    }

155
156
157
158
159
160
161
162
163
164
    public void print_block_begin() {
      println("{");
      indent();
    }

    public void print_block_end() {
      unindent();
      println("}");
    }

Anders Nilsson's avatar
Anders Nilsson committed
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
    public String getUnique(Object o) {
      String result = (String)unique.get(o);
      if (result == null) {
   	result = "_" + (unique.size() + 1) + "_";
      }
      unique.put(o, result);
      return result;
    }

  }

}

aspect Java_StructName {

  inh int Decl.Java_Depth();
  inh int Type.Java_Depth();
  eq Program.getDecl(int i).Java_Depth() = 0;
  eq StructType.getField(int i).Java_Depth() = Java_Depth() + 1;

  inh String Type.Java_structName();
  eq Program.getDecl(int i).Java_structName() = getDecl(i).getName();
  eq StructType.getField(int i).Java_structName() {
    if (Java_Depth() == 0) {
      return "struct_" + getField(i).getName();
    } else {
      return Java_structName() + "_" + getField(i).getName();
    }
  }
}

aspect Java_Void {

  syn boolean Decl.isVoid() = getType().isVoid();
199
  syn boolean UserType.isVoid() = decl().isVoid();
Anders Nilsson's avatar
Anders Nilsson committed
200
201
202
203
204
205
206
  syn boolean Type.isVoid() = false;
  syn boolean VoidType.isVoid() = true;

}

aspect Java_CodeGen {

207
  public void Program.J_gen(PrintStream ps, String pack, int version) throws IOException {
208
    Java_env env;
209
    env = new Java_env(version, ps);
210
211
212
213
214
215
216
217
218
219
220
221
    for (int i = 0; i < getNumDecl(); i++) {
      Decl d = getDecl(i);
      try {
        d.Java_emitClass(env, pack);
      } catch (Error e) {
	System.err.println(d.getName());
	throw e;
      }
    }
    env.close();
  }

222
  public void Program.J_gen(String dir, String pack, int version) throws IOException {
Anders Nilsson's avatar
Anders Nilsson committed
223
224
225
226
    Java_env env;
    for (int i = 0; i < getNumDecl(); i++) {
      Decl d = getDecl(i);
      try {
227
        env = new Java_env(version, new File(dir, d.getName() + ".java"));
Anders Nilsson's avatar
Anders Nilsson committed
228
229
230
231
232
233
234
235
236
        d.Java_emitClass(env, pack);
        env.close();
      } catch (Error e) {
	System.err.println(d.getName());
	throw e;
      }
    }
  }

237
  /** Experimental method for generating code to a map <classname, source>
238
    */
239
  public void Program.J_gen(Map<String,String> src, String pack, int version) throws IOException {
240
241
242
243
244
245
    Java_env env;
    for (int i = 0; i < getNumDecl(); i++) {
      Decl d = getDecl(i);
      try {
        ByteArrayOutputStream bs = new ByteArrayOutputStream();
        PrintStream out = new PrintStream(bs);
246
        env = new Java_env(version, out);
247
248
249
250
251
252
253
254
255
        d.Java_emitClass(env, pack);
        env.close();
        src.put(d.getName(), bs.toString());
      } catch (Error e) {
	System.err.println(d.getName());
	throw e;
      }
    }
  }
256

Anders Nilsson's avatar
Anders Nilsson committed
257
258
259
260
261
}

aspect Java_Class {

  public void Decl.Java_emitClass(Java_env env, String pack) {
262
263
    throw new Error(this.getClass().getName() +
		    ".Java_emitClass(Java_env env, String pack)" +
Anders Nilsson's avatar
Anders Nilsson committed
264
265
266
		    " not declared");
  }

267
  public void Decl.Java_emitDeclPP(Java_env env) {
Anders Nilsson's avatar
Anders Nilsson committed
268
269
270
      // Hackish prettyprint preamble
      env.println("/* ");
      pp(env.getPrintStream());
271
272
273

      Java_emitUserTypeDeps(env, null, false);
      Java_emitUserTypeRefs(env, null, false);
Anders Nilsson's avatar
Anders Nilsson committed
274
275
      env.println("*/");

276
277
278
279
280
281
282
283
284
285
286
287
  }

  public void Decl.Java_emitUserTypeDeps(Java_env env, String via, boolean outputCode) {
  // XXX TODO will generate unnecessary recursion for types. fix this per commented out code
  // XXX      but ensure that types with references actually register themselves.. (i.e., add "nested" argument)
  //public abstract void Decl.Java_emitUserTypeDeps(Java_env env, String via, boolean outputCode);

  //public void TypeDecl.Java_emitUserTypeDeps(Java_env env, String via, boolean outputCode) {
  //  // do nothing for type decls; sampledecl iterates over all dependencies and outputs
  //  // all type decls
  //}
  //public void SampleDecl.Java_emitUserTypeDeps(Java_env env, String via, boolean outputCode) {
288
289
290
291
292
//  if(env.versionHasMetaData() && hasDependencies() || isReferenced() ) {
//      if(env.versionHasMetaData() && isSampleDecl() && outputCode) {
//         env.println("if(sendMetaData){");
//         env.indent();
//      }
293
294
295
296
297
298
299
300
301
        Iterator<Decl> it = type_dependencies().iterator();
        while(it.hasNext()) {
            Decl t = it.next();

            t.Java_emitUserTypeDeps(env, t.getName(), outputCode);
            if( outputCode){// && t.getType().isUserType() ) {
               env.println(t.getName()+".register(e);");
            } else {  // Just output a comment
	        String refpath = (via == null) ? "directly" : "indirectly via "+via;
302
	       env.println(" //Depends ("+refpath+") on "+t.getName() );
303
304
            }
        }
305
306
307
308
309
//      if(env.versionHasMetaData() && isSampleDecl() && outputCode) {
//         env.unindent();
//         env.println("}");
//      }
//  }
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
  }
  public void Decl.Java_emitUserTypeRefs(Java_env env, String via, boolean outputCode) {
    if( isReferenced() ) {
        Iterator<Decl> it = type_references().iterator();
        while(it.hasNext()) {
            Decl t = it.next();

            t.Java_emitUserTypeRefs(env, t.getName(), outputCode);
            if(outputCode) {
               env.println(t.getName()+".register(e);");
            } else {  // Just output a comment
	        String refpath = (via == null) ? "directly" : "indirectly via "+via;
	       env.println(" //Is referenced ("+refpath+")  by "+t.getName() );
            }
        }
    }
 }


  public void Decl.Java_emitRegisterEncoder(Java_env env) {
    env.println("public static void register(Encoder e) throws IOException {");
    env.indent();
    env.println("register(e, true);");
    env.unindent();
    env.println("}");
    env.println();
    env.println("public static void register(Encoder e, boolean sendMetaData) throws IOException {");
    env.indent();
    Java_emitUserTypeDeps(env, null, true);
339
    env.println("e.register(dispatcher);");
340
341
342
343
344
345
346
    env.unindent();
    env.println("}");
    env.println();
  }

  public void TypeDecl.Java_emitClass(Java_env env, String pack) {
      Java_emitDeclPP(env);
Anders Nilsson's avatar
Anders Nilsson committed
347
      if (pack != null && pack.length() > 0) {
348
          env.println("package " + pack + ";");
Anders Nilsson's avatar
Anders Nilsson committed
349
350
      }

351
      env.println("import se.lth.control.labcomm"+env.verStr+".Constant;");
Anders Blomdell's avatar
Anders Blomdell committed
352
      env.println("import se.lth.control.labcomm"+env.verStr+".SampleType;");
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367

      if (getType().Java_needInstance() || hasDependencies() || isReferenced()) {
          env.println("import se.lth.control.labcomm"+env.verStr+".Encoder;");
          env.println("import se.lth.control.labcomm"+env.verStr+".SampleDispatcher;");
          env.println("import se.lth.control.labcomm"+env.verStr+".SampleHandler;");
//          env.println();
//      }
//
//      if (getType().Java_needInstance()) {
          env.println("import java.io.IOException;");
          env.println("import se.lth.control.labcomm"+env.verStr+".Decoder;");
      }
      // For types without type_dependencies and not needing an instance,
      // currently just an empty class is generated

Anders Blomdell's avatar
Anders Blomdell committed
368
      env.println("public class " + getName() + " implements SampleType {");
Anders Nilsson's avatar
Anders Nilsson committed
369
      env.println();
370

Anders Nilsson's avatar
Anders Nilsson committed
371
      env.indent();
372
373
374
375
376
377
378
379
380
381
382
383
384
385
      if (getType().Java_needInstance()) {
        getType().Java_emitInstance(env);
        Java_emitEncoder(env);
        Java_emitDecoder(env);
      }

      //if(hasDependencies() || isReferenced()) {
      //if( getType().isUserType() && isReferenced()) {
      if( isReferenced()) {
        Java_emitRegisterEncoder(env);
        Java_emitDispatcher(env, false);
      }
      Java_emitSignature(env);

Anders Nilsson's avatar
Anders Nilsson committed
386
      env.println("}");
387
388
      env.unindent();
      env.println();
Anders Nilsson's avatar
Anders Nilsson committed
389
390
  }

391

Anders Nilsson's avatar
Anders Nilsson committed
392
  public void SampleDecl.Java_emitClass(Java_env env, String pack) {
393
    Java_emitDeclPP(env);
Anders Nilsson's avatar
Anders Nilsson committed
394
395
396
397
398
399

    if (pack != null && pack.length() > 0) {
      env.println("package " + pack + ";");
    }

    env.println("import java.io.IOException;");
400
    env.println("import se.lth.control.labcomm"+env.verStr+".Constant;");
Anders Blomdell's avatar
Anders Blomdell committed
401
402
403
404
405
    env.println("import se.lth.control.labcomm"+env.verStr+".Decoder;");
    env.println("import se.lth.control.labcomm"+env.verStr+".SampleDispatcher;");
    env.println("import se.lth.control.labcomm"+env.verStr+".Encoder;");
    env.println("import se.lth.control.labcomm"+env.verStr+".SampleHandler;");
    env.println("import se.lth.control.labcomm"+env.verStr+".Sample;");
Anders Nilsson's avatar
Anders Nilsson committed
406
    env.println();
407
    env.print("public class " + getName());
408
409
410
411
//  TODO: ?
//  Code for making samples of user types extend their type
//  currently commented out. Is this a good idea or not?
//
412
413
414
//    if(getType().isUserType()) {
//        env.print(" extends "+getType().getTypeName());
//    }
Anders Blomdell's avatar
Anders Blomdell committed
415
    env.println(" implements Sample {");
Anders Nilsson's avatar
Anders Nilsson committed
416
417
418
    env.println();
    env.indent();
    getType().Java_emitInstance(env);
Anders Blomdell's avatar
Anders Blomdell committed
419
    env.println("public interface Handler extends SampleHandler {");
Anders Nilsson's avatar
Anders Nilsson committed
420
421
422
423
424
425
426
427
    env.print("  public void handle_" + getName() + "(");
    if (!isVoid()) {
      getType().Java_emitType(env);
      env.print(" value");
    }
    env.println(") throws Exception;");
    env.println("}");
    env.println();
428
    env.println("public static void register(Decoder d, Handler h) throws IOException {");
Anders Nilsson's avatar
Anders Nilsson committed
429
    env.indent();
430
    env.println("d.register(dispatcher, h);");
Anders Nilsson's avatar
Anders Nilsson committed
431
432
433
434
    env.unindent();
    env.println("}");
    env.println();

435
436
437
438
439
440
441

    Java_emitRegisterEncoder(env);
    Java_emitDispatcher(env, true);
    Java_emitEncoder(env);
    Java_emitDecoder(env);

    Java_emitSignature(env);
Anders Nilsson's avatar
Anders Nilsson committed
442
443
    env.unindent();
    env.println("}");
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
    env.println();
  }

  //public void TypeDecl.Java_emitSignature(Java_env env) {
  //  Signature signature = getSignature();
  //  signature.Java_emitSignature(env, true);
  //}

  public void Decl.Java_emitSignature(Java_env env) {
    //always emit the flat signature, as it is needed
    //for matching at the decoder side (which cannot know
    //the type_ids of dependent types. Therefore, flat sigs
    //are used for matching
    Java_emitFlatSignature(env);
    //if(isReferenced() || isSampleDecl()){
    //  Signature signature = getSignature();
    //  signature.Java_emitSignature(env, !isSampleDecl());
    //}
  }

  public void Decl.Java_emitFlatSignature(Java_env env){
    env.println("private static byte[] signature = new byte[] {");
      env.indent();
      SignatureList signature = flatSignature(env.version);
      for (int i = 0 ; i < signature.size() ; i++) {
        String comment = signature.getComment(i);
        if (comment != null) {
          env.println(signature.getIndent(i) + "// " + comment);
        }
        byte[] data = signature.getData(i, env.version);
        if (data != null) {
          env.print(signature.getIndent(i));
          for (int j = 0 ; j < data.length ; j++) {
          env.print(data[j] + ", ");
        }
        env.println();
      }
    }
    env.unindent();
    env.println("};");
    env.unindent();
    env.println();
  }
Anders Nilsson's avatar
Anders Nilsson committed
487

488
489
  //XXX TODO: refactor: split into a static class ("TypeDefSingleton"?)and a (smaller) dispatcher
  public void Decl.Java_emitDispatcher(Java_env env, boolean isSample) {
490
    String genericStr = ""; //env.versionHasMetaData()?"<"+getName()+">":""; 
491
    env.println("private static Dispatcher dispatcher = new Dispatcher();");
492
    env.println();
493
    env.println("public SampleDispatcher getDispatcher() {");
Anders Nilsson's avatar
Anders Nilsson committed
494
    env.indent();
495
    env.println("return dispatcher;");
496
497
498
    env.unindent();
    env.println("}");
    env.println();
499
500
501
    env.println("private static class Dispatcher implements SampleDispatcher "+genericStr+"{");
    env.indent();
    env.println();
502
    env.println("public Class"+genericStr+" getSampleClass() {");
Anders Nilsson's avatar
Anders Nilsson committed
503
504
505
506
    env.indent();
    env.println("return " + getName() + ".class;");
    env.unindent();
    env.println("}");
507
    env.println();
Anders Nilsson's avatar
Anders Nilsson committed
508
509
510
511
512
    env.println("public String getName() {");
    env.indent();
    env.println("return \"" + getName() + "\";");
    env.unindent();
    env.println("}");
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
    env.println();
    env.println("public byte getTypeDeclTag() {");
    env.indent();
    if(env.version == 2006) {
      if(isSample) {
        env.println("return Constant.SAMPLE;");
      } else {
        env.println("return Constant.TYPEDEF;");
      }
    } else {
      if(isSample) {
        env.println("return Constant.SAMPLE_DEF;");
      } else {
        env.println("return Constant.TYPE_DEF;");
      }
    }
    env.unindent();
    env.println("}");
    env.println();
    env.println("public boolean isSample() {");
    env.indent();
    env.println("return "+isSample+";");
    env.unindent();
    env.println("}");
537
538
539
540
541
//    env.println("public boolean hasStaticSignature() {");
//    env.indent();
//    env.println("return "+!hasDependencies()+";");
//    env.unindent();
//    env.println("}");
542
    env.println();
543
    env.println("/** return the flat signature. */");
Anders Nilsson's avatar
Anders Nilsson committed
544
545
546
547
548
    env.println("public byte[] getSignature() {");
    env.indent();
    env.println("return signature;");
    env.unindent();
    env.println("}");
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
    env.println();
//    env.println("public void encodeSignature(Encoder e) throws IOException{");
//    env.indent();
//    env.println("emitSignature(e);");
//    env.unindent();
//    env.println("}");
//    env.println();
//    env.println("public void encodeSignatureMetadata(Encoder e, int index) throws IOException{");
//    env.indent();
//    env.println("e.encodePacked32(Constant.TYPE_DEF);");
//    env.println("e.encodePacked32(index);");
//    env.println("e.encodeString(getName());");
//    env.println("emitSignature(e);");
//    env.unindent();
//    env.println("}");
//    env.println();
    env.println("public boolean canDecodeAndHandle() {");
    env.indent();
    env.println("return "+isSample+";");
    env.unindent();
    env.println("}");
    env.println();
Anders Blomdell's avatar
Anders Blomdell committed
571
572
    env.println("public void decodeAndHandle(Decoder d,");
    env.println("                            SampleHandler h) throws Exception {");
Anders Nilsson's avatar
Anders Nilsson committed
573
    env.indent();
574
575
576
577
578
579
580
    if( isSample) {
        if (isVoid()) {
          env.println(getName() + ".decode(d);");
          env.println("((Handler)h).handle_" + getName() + "();");
        } else {
          env.println("((Handler)h).handle_" + getName() + "(" + getName() + ".decode(d));");
        }
Anders Nilsson's avatar
Anders Nilsson committed
581
    } else {
582
        env.println("throw new Exception(\"A typedef has no handler, the corresponding method on the sample class should be called.\");");
Anders Nilsson's avatar
Anders Nilsson committed
583
584
585
586
587
588
589
590
    }
    env.unindent();
    env.println("}");
    env.println("");
    env.unindent();
    env.println("}");
    env.println("");

591
592
 }

Anders Nilsson's avatar
Anders Nilsson committed
593
594

  public void TypeDecl.Java_emitEncoder(Java_env env) {
Anders Blomdell's avatar
Anders Blomdell committed
595
    env.print("public static void encode(Encoder e");
Anders Nilsson's avatar
Anders Nilsson committed
596
597
598
599
600
601
602
603
604
605
606
607
608
609
    if (!isVoid()) {
      env.print(", ");
      getType().Java_emitType(env);
      env.print(" value");
    }
    env.println(") throws IOException {");
    env.indent();
    getType().Java_emitEncoder(env, "value");
    env.unindent();
    env.println("}");
    env.println();
  }

  public void SampleDecl.Java_emitEncoder(Java_env env) {
Anders Blomdell's avatar
Anders Blomdell committed
610
    env.print("public static void encode(Encoder e");
Anders Nilsson's avatar
Anders Nilsson committed
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
    if (!isVoid()) {
      env.print(", ");
      getType().Java_emitType(env);
      env.print(" value");
    }
    env.println(") throws IOException {");
    env.indent();
    env.println("e.begin(" + getName() + ".class);");
    getType().Java_emitEncoder(env, "value");
    env.println("e.end(" + getName() + ".class);");
    env.unindent();
    env.println("}");
    env.println();
  }

  public void Type.Java_emitEncoder(Java_env env, String name) {
627
628
    throw new Error(this.getClass().getName() +
		    ".Java_emitEncoder(Java_env env, String name)" +
Anders Nilsson's avatar
Anders Nilsson committed
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
		    " not declared");
  }

  public void VoidType.Java_emitEncoder(Java_env env, String name) {
  }

  public void PrimType.Java_emitEncoder(Java_env env, String name) {
    switch (getToken()) {
      case LABCOMM_BOOLEAN: { env.print("e.encodeBoolean"); } break;
      case LABCOMM_BYTE: { env.print("e.encodeByte"); } break;
      case LABCOMM_SHORT: { env.print("e.encodeShort"); } break;
      case LABCOMM_INT: { env.print("e.encodeInt"); } break;
      case LABCOMM_LONG: { env.print("e.encodeLong"); } break;
      case LABCOMM_FLOAT: { env.print("e.encodeFloat"); } break;
      case LABCOMM_DOUBLE: { env.print("e.encodeDouble"); } break;
      case LABCOMM_STRING: { env.print("e.encodeString"); } break;
    }
    env.println("(" + name + ");");
  }

  public void ArrayType.Java_emitEncoder(Java_env env, String name) {
    int baseDepth = env.getDepth();
    String prefix = "";
    for (int i = 0 ; i < getNumExp() ; i++) {
      String limit = getExp(i).Java_emitEncoder(env, name + prefix);
654
      env.print_block_begin();
Anders Nilsson's avatar
Anders Nilsson committed
655
656
657
658
659
660
661
662
663
664
      env.println("int i_" + (baseDepth + i) + "_max = " + limit + ";");
      prefix = prefix + "[0]";
    }
    for (int i = 0 ; i < getNumExp() ; i++) {
      String limit = "i_" + (baseDepth + i) + "_max";
      name = name + env.print_for_begin(limit);
    }
    getType().Java_emitEncoder(env, name);
    for (int i = 0 ; i < getNumExp() ; i++) {
      env.print_for_end();
665
      env.print_block_end();
Anders Nilsson's avatar
Anders Nilsson committed
666
667
    }
  }
668

Anders Nilsson's avatar
Anders Nilsson committed
669
  public String Exp.Java_emitEncoder(Java_env env, String name) {
670
671
    throw new Error(this.getClass().getName() +
		    ".Java_emitEncoder(Java_env env, String name)" +
Anders Nilsson's avatar
Anders Nilsson committed
672
673
674
675
676
677
678
679
		    " not declared");
  }

  public String IntegerLiteral.Java_emitEncoder(Java_env env, String name) {
    return getValue();
  }

  public String VariableSize.Java_emitEncoder(Java_env env, String name) {
680
    env.println("e.encodePacked32(" + name + ".length);");
Anders Nilsson's avatar
Anders Nilsson committed
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
    return name + ".length";
  }

  public void StructType.Java_emitEncoder(Java_env env, String name) {
    for (int i = 0 ; i < getNumField() ; i++) {
      Field f = getField(i);
      f.getType().Java_emitEncoder(env, name + "." + f.getName());
    }
  }

  public void UserType.Java_emitEncoder(Java_env env, String name) {
    if (Java_needInstance()) {
      env.println(getName() + ".encode(e, " + name + ");");
    } else {
      decl().getType().Java_emitEncoder(env, name);
    }
  }

  public void Decl.Java_emitDecoder(Java_env env) {
    env.print("public static ");
    getType().Java_emitType(env);
Anders Blomdell's avatar
Anders Blomdell committed
702
    env.println(" decode(Decoder d) throws IOException {");
Anders Nilsson's avatar
Anders Nilsson committed
703
704
705
706
707
708
709
710
711
712
713
714
715
    env.indent();
    if (!isVoid()) {
      getType().Java_emitType(env);
      env.println(" result;");
      getType().Java_emitDecoder(env, "result");
      env.println("return result;");
    }
    env.unindent();
    env.println("}");
    env.println();
  }

  public void Type.Java_emitDecoder(Java_env env, String name) {
716
717
    throw new Error(this.getClass().getName() +
		    ".Java_emitDecoder(Java_env env, String name)" +
Anders Nilsson's avatar
Anders Nilsson committed
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
		    " not declared");
  }

  public void VoidType.Java_emitDecoder(Java_env env, String name) {
  }

  public void PrimType.Java_emitDecoder(Java_env env, String name) {
    env.print(name + " = ");
    switch (getToken()) {
      case LABCOMM_BOOLEAN: { env.println("d.decodeBoolean();"); } break;
      case LABCOMM_BYTE: { env.println("d.decodeByte();"); } break;
      case LABCOMM_SHORT: { env.println("d.decodeShort();"); } break;
      case LABCOMM_INT: { env.println("d.decodeInt();"); } break;
      case LABCOMM_LONG: { env.println("d.decodeLong();"); } break;
      case LABCOMM_FLOAT: { env.println("d.decodeFloat();"); } break;
      case LABCOMM_DOUBLE: { env.println("d.decodeDouble();"); } break;
      case LABCOMM_STRING: { env.println("d.decodeString();"); } break;
    }
  }

  public void ArrayType.Java_emitDecoder(Java_env env, String name) {
    env.println("{");
    env.indent();
    int baseDepth = env.getDepth();
    for (int i = 0 ; i < getNumExp() ; i++) {
      env.print("int i_" + (baseDepth + i) + "_max = ");
      getExp(i).Java_emitDecoder(env);
      env.println(";");
    }
    for (int i = 0 ; i < getNumExp() ; i++) {
      String limit = "i_" + (baseDepth + i) + "_max";
749
      env.print(name + " = ");
Anders Nilsson's avatar
Anders Nilsson committed
750
751
752
753
754
755
756
757
758
759
760
761
762
      Java_emitNew(env, limit, getNumExp() - i);
      env.println(";");
      name = name + env.print_for_begin(limit);
    }
    getType().Java_emitDecoder(env, name);
    for (int i = 0 ; i < getNumExp() ; i++) {
      env.print_for_end();
    }
    env.unindent();
    env.println("}");
  }

  public void Exp.Java_emitDecoder(Java_env env) {
763
764
    throw new Error(this.getClass().getName() +
		    ".Java_emitDecoder(Java_env env)" +
Anders Nilsson's avatar
Anders Nilsson committed
765
766
767
768
769
770
771
772
		    " not declared");
  }

  public void IntegerLiteral.Java_emitDecoder(Java_env env) {
    env.print(getValue());
  }

  public void VariableSize.Java_emitDecoder(Java_env env) {
773
    env.print("d.decodePacked32()");
Anders Nilsson's avatar
Anders Nilsson committed
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
  }

  public void StructType.Java_emitDecoder(Java_env env, String name) {
    env.print(name + " = new ");
    Java_emitType(env);
    env.println("();");
    for (int i = 0 ; i < getNumField() ; i++) {
      Field f = getField(i);
      f.getType().Java_emitDecoder(env, name + "." + f.getName());
    }
  }

  public void UserType.Java_emitDecoder(Java_env env, String name) {
    if (Java_needInstance()) {
      env.println(name + " = " + getName() + ".decode(d);");
    } else {
      decl().getType().Java_emitDecoder(env, name);
    }
  }

  public void Type.Java_emitNew(Java_env env, String size) {
795
796
    throw new Error(this.getClass().getName() +
		    ".Java_emitNew(Java_env env, String size)" +
Anders Nilsson's avatar
Anders Nilsson committed
797
798
799
800
801
802
803
804
805
806
807
808
809
810
		    " not declared");
  }

  public void ArrayType.Java_emitNew(Java_env env, String size, int depth) {
    env.print("new ");
    getType().Java_emitTypePrefix(env);
    env.print("[" + size + "]");
    getType().Java_emitTypeSuffix(env);
    for (int i = 1 ; i < depth ; i++) {
      env.print("[]");
    }
  }

  public void Type.Java_emitTypePrefix(Java_env env) {
811
812
    throw new Error(this.getClass().getName() +
		    ".Java_emitTypePrefix(Java_env env)" +
Anders Nilsson's avatar
Anders Nilsson committed
813
814
815
816
817
818
		    " not declared");
  }

  public void PrimType.Java_emitTypePrefix(Java_env env) {
    switch (getToken()) {
      case LABCOMM_STRING: { env.print("String"); } break;
Anders Blomdell's avatar
Anders Blomdell committed
819
      case LABCOMM_SAMPLE: { env.print("Class"); } break;
Anders Nilsson's avatar
Anders Nilsson committed
820
821
822
823
824
825
826
827
828
      default: { env.print(getName()); } break;
    }
  }

  public void UserType.Java_emitTypePrefix(Java_env env) {
    if (Java_needInstance()) {
      env.print(getName());
    } else {
      decl().getType().Java_emitTypePrefix(env);
829
    }
Anders Nilsson's avatar
Anders Nilsson committed
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
  }

  public void ArrayType.Java_emitTypePrefix(Java_env env){
    getType().Java_emitTypePrefix(env);
  }

  public void StructType.Java_emitTypePrefix(Java_env env){
    env.print(Java_structName());
  }

  public void Type.Java_emitTypeSuffix(Java_env env) {
  }

  public void UserType.Java_emitTypeSuffix(Java_env env) {
    if (! Java_needInstance()) {
      decl().getType().Java_emitTypeSuffix(env);
846
    }
Anders Nilsson's avatar
Anders Nilsson committed
847
848
849
850
851
852
853
854
855
856
  }

  public void ArrayType.Java_emitTypeSuffix(Java_env env){
    getType().Java_emitTypeSuffix(env);
    for (int i = 0 ; i < getNumExp() ; i++) {
      env.print("[]");
    }
  }

  public boolean Type.Java_needInstance() {
857
858
    throw new Error(this.getClass().getName() +
		    ".Java_needInstance()" +
Anders Nilsson's avatar
Anders Nilsson committed
859
860
861
		    " not declared");
  }

862
863
864
865
  public boolean VoidType.Java_needInstance() {
    return false;
  }

Anders Nilsson's avatar
Anders Nilsson committed
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
  public boolean PrimType.Java_needInstance() {
    return false;
  }

  public boolean UserType.Java_needInstance() {
    return decl().getType().Java_needInstance();
  }

  public boolean StructType.Java_needInstance() {
    return true;
  }

  public boolean ArrayType.Java_needInstance() {
    return getType().Java_needInstance();
  }

  public boolean Type.Java_isPrimitive() {
    return false;
  }

  public boolean PrimType.Java_isPrimitive() {
    return true;
  }

  public void Type.Java_emitInstance(Java_env env) {
891
892
    throw new Error(this.getClass().getName() +
		    ".Java_emitInstance(Java_env env)" +
Anders Nilsson's avatar
Anders Nilsson committed
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
		    " not declared");
  }

  public void VoidType.Java_emitInstance(Java_env env) {
  }

  public void PrimType.Java_emitInstance(Java_env env) {
  }

  public void ArrayType.Java_emitInstance(Java_env env) {
    getType().Java_emitInstance(env);
  }

  public void StructType.Java_emitInstance(Java_env env) {
    if (Java_Depth() > 0) {
      env.println("public static class " + Java_structName() + " {");
      env.indent();
    }
    for (int i = 0 ; i < getNumField() ; i++) {
      getField(i).getType().Java_emitInstance(env);
    }
    for (int i = 0 ; i < getNumField() ; i++) {
      getField(i).Java_emitField(env);
    }
    if (Java_Depth() > 0) {
      env.unindent();
      env.println("}");
    }
    env.println();
  }

  public void UserType.Java_emitInstance(Java_env env) {
  }

  public void Field.Java_emitField(Java_env env) {
    env.print("public ");
    getType().Java_emitType(env);
930
    env.println(" " + getName() + ";");
Anders Nilsson's avatar
Anders Nilsson committed
931
932
933
  }

  public void Type.Java_emitType(Java_env env) {
934
935
    throw new Error(this.getClass().getName() +
		    ".Java_emitType(Java_env env)" +
Anders Nilsson's avatar
Anders Nilsson committed
936
937
938
939
940
941
942
943
944
945
		    " not declared");
  }

  public void VoidType.Java_emitType(Java_env env) {
    env.print("void");
  }

  public void PrimType.Java_emitType(Java_env env) {
    switch (getToken()) {
      case LABCOMM_STRING: { env.print("String"); } break;
Anders Blomdell's avatar
Anders Blomdell committed
946
      case LABCOMM_SAMPLE: { env.print("Class"); } break;
Anders Nilsson's avatar
Anders Nilsson committed
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
      default: { env.print(getName()); } break;
    }
  }

  public void UserType.Java_emitType(Java_env env) {
    decl().getType().Java_emitType(env);
  }

  public void ArrayType.Java_emitType(Java_env env){
    getType().Java_emitType(env);
    for (int i = 0 ; i < getNumExp() ; i++) {
      env.print("[]");
    }
  }

  public void StructType.Java_emitType(Java_env env){
    env.print(Java_structName());
  }
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
}

aspect Java_Signature {
    public void Signature.Java_emitSignature(Java_env env, boolean decl){
      // XXX should sendOnlyFlatSignatures be kept somewhere?
      //SignatureList sl = (parentDecl().sendOnlyFlatSignatures(env)) ? getFlatSignatureList() : getSignatureList();
      SignatureList sl = getSignatureList();
      sl.Java_emitSignature(env, decl);
    }

//    public void Signature.Java_emitHierarchicalSignature(Java_env env, boolean decl){
//      SignatureList sl = getSignatureList();
//      sl.Java_emitSignature(env, decl);
//    }
//
    public abstract void SignatureLine.Java_emitSignature(Java_env env, boolean decl);

    public void TypeRefSignatureLine.Java_emitSignature(Java_env env, boolean isDecl){
      env.print(getIndentString());
      env.println("e.encodePacked32(e.getTypeId("+decl.getName()+".class));");
    }

    public void DataSignatureLine.Java_emitSignature(Java_env env, boolean decl){
        byte[] data = getData(env.version);
          if (data != null) {
              env.print(getIndentString());
              for (int j = 0 ; j < data.length ; j++) {
                  //env.print("e.encodeByte((byte)"+data[j]+");");
                  env.print("e.encodeByte((byte)"+ String.format("0x%02X ", data[j]) +"); ");
              }
              env.println();
          }
  }
    public void SignatureList.Java_emitSignature(Java_env env, boolean decl) {
      env.println("private static void emitSignature(Encoder e) throws IOException{");
      env.indent();