C_CodeGen.jrag 30.6 KB
Newer Older
Anders Nilsson's avatar
Anders Nilsson committed
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
import java.util.Vector;

aspect C_CodeGenEnv {

  // Environment wrapper for C-code generation
  // handles qualid nesting, indentation, file writing and
  // prefix propagation

  public class C_env {

    final private class C_printer {
      
      private boolean newline = true;
      private PrintStream out;

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

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

    public final String qualid;
    public final String lcName;
    public final String rawPrefix;
    public final String prefix;
    private int indent;
    public final int depth;
    private C_printer printer;

    private C_env(String qualid, String lcName, String rawPrefix, 
		  int indent, int depth, C_printer printer) {
      this.qualid = qualid;
      this.lcName = lcName;
      this.rawPrefix = rawPrefix;
49
50
51
52
53
      if (rawPrefix.equals("")) {
        this.prefix = rawPrefix;
      } else {
        this.prefix = rawPrefix + "_";
      }
Anders Nilsson's avatar
Anders Nilsson committed
54
55
56
57
58
59
60
61
62
63
      this.indent = indent;
      this.depth = depth;
      this.printer = printer;
    }

    public C_env(String qualid, String lcName, String rawPrefix, 
		 PrintStream out) {
      this.qualid = qualid;
      this.lcName = lcName;
      this.rawPrefix = rawPrefix;
64
65
66
67
68
      if (rawPrefix.equals("")) {
        this.prefix = rawPrefix;
      } else {
        this.prefix = rawPrefix + "_";
      }
Anders Nilsson's avatar
Anders Nilsson committed
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
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
155
156
157
158
159
160
161
162
163
      this.depth = 0;
      this.indent = 0;
      this.printer = new C_printer(out);
    }

    public C_env nestArray(String suffix) {
      return new C_env(qualid + suffix, lcName, rawPrefix, 
		       indent, depth + 1, printer);
    }

    public C_env nestStruct(String suffix) {
      return new C_env(qualid + suffix, lcName, rawPrefix, 
		       indent, depth, printer);
    }

    public void indent() {
      indent++;
    }

    public void unindent() {
      indent--;
    }

    public String prefix() {
      return rawPrefix;
    }

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

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

  }

  public C_env ArrayType.C_Nest(C_env env) {
    throw new Error(this.getClass().getName() + 
		    ".C_Nest(C_env env)" + 
		    " not declared");
  }

  public C_env FixedArrayType.C_Nest(C_env env) {
    String index = ".a";
    for (int i = 0 ; i < getNumExp() ; i++) {
      index += "[i_" + env.depth + "_" + i + "]";
    }
    return env.nestArray(index);
  }

  public C_env VariableArrayType.C_Nest(C_env env) {
    return env.nestArray(".a[i_" + env.depth + "]");
  }


}

aspect C_IsDynamic {
  
  // Determine if a type has dynamically allocated data
  syn boolean Decl.C_isDynamic() = getType().C_isDynamic();
  syn boolean Type.C_isDynamic() = false;
  syn boolean PrimType.C_isDynamic() = getToken() == LABCOMM_STRING;
  syn boolean UserType.C_isDynamic() = 
    lookupType(getName()).getType().C_isDynamic();
  syn boolean StructType.C_isDynamic() {
    for (int i = 0 ; i < getNumField() ; i++) {
      if (getField(i).getType().C_isDynamic()) {
	return true;
      }
    }
    return false;
  }
  syn boolean FixedArrayType.C_isDynamic() = getType().C_isDynamic();
  syn boolean VariableArrayType.C_isDynamic() = true;
}

aspect C_CodeGen {

  public void Program.C_genH(PrintStream out, Vector includes, 
			     String lcName, String prefix) {
    C_env env = new C_env("", lcName, prefix, out);

    // Hackish prettyprint preamble
    out.println("/* LabComm declarations:");
    pp(out);
    out.println("*/");
    env.println("");
    env.println("");
    env.println("#ifndef __LABCOMM_" + env.lcName + "_H__"); 
    env.println("#define __LABCOMM_" + env.lcName + "_H__");
    env.println("");

    // Include
164
    env.println("#include <stdint.h>");
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
    env.println("#include \"labcomm.h\"");
    for (int i = 0 ; i < includes.size() ; i++) {
      env.println("#include \"" + includes.get(i) + "\"");
    }
    env.println("");

    C_emitH(env);

    env.println("#endif");
  }

  public void Program.C_genC(PrintStream out, Vector includes, 
			     String lcName, String prefix) {
    C_env env = new C_env("", lcName, prefix, out);

    // Include
    env.println("#include \"labcomm.h\"");
    env.println("#include \"labcomm_private.h\"");
    for (int i = 0 ; i < includes.size() ; i++) {
      env.println("#include \"" + includes.get(i) + "\"");
    }
    env.println("");
    
    // Method Implementations
    C_emitC(env);
  }

  public void Program.C_emitH(C_env env) {
    for (int i = 0; i < getNumDecl(); i++) {
      getDecl(i).C_emitType(env);
195
      getDecl(i).C_emitDecoderDeclaration(env);
Anders Nilsson's avatar
Anders Nilsson committed
196
197
198
199
200
201
202
203
      getDecl(i).C_emitEncoderDeclaration(env);
      getDecl(i).C_emitSizeofDeclaration(env);
      env.println("");
    }
    C_emitForAll(env);
  }

  public void Program.C_emitC(C_env env) {
204
205
206
207
208
209
    env.print("#if ! defined(LABCOMM_GEN_CODE) && ");
    env.println("! defined(LABCOMM_GEN_SIGNATURE)");
    env.println("#define LABCOMM_GEN_CODE");
    env.println("#define LABCOMM_GEN_SIGNATURE");
    env.println("#endif");
    env.println("#if defined(LABCOMM_GEN_CODE)");
Anders Nilsson's avatar
Anders Nilsson committed
210
    for (int i = 0; i < getNumDecl(); i++) {
211
      getDecl(i).C_emitSignatureBitsAndForward(env);
Anders Nilsson's avatar
Anders Nilsson committed
212
213
      getDecl(i).C_emitDecoder(env);
      getDecl(i).C_emitDecoderRegisterHandler(env);
214
      getDecl(i).C_emitDecoderIoctl(env);
Anders Nilsson's avatar
Anders Nilsson committed
215
216
      getDecl(i).C_emitEncoder(env);
      getDecl(i).C_emitEncoderRegisterHandler(env);
217
      getDecl(i).C_emitEncoderIoctl(env);
Anders Nilsson's avatar
Anders Nilsson committed
218
219
      getDecl(i).C_emitSizeof(env);
    }
220
221
222
223
224
225
    env.println("#endif");
    env.println("#if defined(LABCOMM_GEN_SIGNATURE)");
    for (int i = 0; i < getNumDecl(); i++) {
      getDecl(i).C_emitSignature(env);
    }
    env.println("#endif");
Anders Nilsson's avatar
Anders Nilsson committed
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
  }
 
}

aspect C_Common {

  public void ArrayType.C_emitLoopVariables(C_env env) {
    for (int i = 0 ; i < getNumExp() ; i++) {
      env.println("int i_" + env.depth + "_" + i + ";");
    }
  }

}

aspect C_Type {

  public void Decl.C_emitType(C_env env) {
    throw new Error(this.getClass().getName() + 
		    ".C_emitType(C_env env)" + 
		    " not declared");
  }

  public void TypeDecl.C_emitType(C_env env) {
    env.println("#ifndef PREDEFINED_" + env.prefix + getName());
    env.print("typedef ");
    getType().C_emitType(env, env.prefix + getName());
    env.println(";");
    env.println("#endif");
  }

  public void SampleDecl.C_emitType(C_env env) {
    env.println("#ifndef PREDEFINED_" + env.prefix + getName());
    env.print("typedef ");
    getType().C_emitType(env, env.prefix + getName());
    env.println(";");
    env.println("#endif");
  }

  public void Type.C_emitType(C_env env, String name) {
    throw new Error(this.getClass().getName() + 
		    ".C_emitType(C_env env, String name)" + 
		    " not declared");
  }

  public void VoidType.C_emitType(C_env env, String name) {
    env.print("char " + name);
  }

  public void PrimType.C_emitType(C_env env, String name) {
    switch (getToken()) {
276
277
278
279
280
281
282
      case LABCOMM_BOOLEAN: { env.print("uint8_t"); } break;
      case LABCOMM_BYTE: { env.print("uint8_t"); } break;
      case LABCOMM_SHORT: { env.print("int16_t"); } break;
      case LABCOMM_INT: { env.print("int32_t"); } break;
      case LABCOMM_LONG: { env.print("int64_t"); } break;
      case LABCOMM_FLOAT: { env.print("float"); } break;
      case LABCOMM_DOUBLE: { env.print("double"); } break;
Anders Nilsson's avatar
Anders Nilsson committed
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
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
339
340
341
342
343
344
345
346
347
348
349
      case LABCOMM_STRING: { env.print("char*"); } break;
    }
    env.print(" " + name);
  }

  public void UserType.C_emitType(C_env env, String name) {
    env.print(env.prefix + getName() + " " + name);
  }

  public void StructType.C_emitType(C_env env, String name) {
    env.println("struct {");
    env.indent();
    for (int i = 0 ; i < getNumField() ; i++) {
      getField(i).C_emitType(env);
      env.println(";");
    }
    env.unindent();
    env.print("} " + name);
  }

  public void Field.C_emitType(C_env env) {
    getType().C_emitType(env, getName());
  }

  public void FixedArrayType.C_emitType(C_env env, String name) {
    env.println("struct {");
    env.indent();
    StringBuffer index = new StringBuffer("a");
    for (int i = 0 ; i < getNumExp() ; i++) {
      index.append("[" + getExp(i).C_getValue() + "]");
    }
    getType().C_emitType(env, index.toString());
    env.println(";");
    env.unindent();
    env.print("} " + name);
  }

  public void VariableArrayType.C_emitType(C_env env, String name) {
    env.println("struct {");
    env.indent();
    for (int i = 0 ; i < getNumExp() ; i++) {
      if (getExp(i) instanceof VariableSize) {
	env.println("int n_" + i + ";");
      } else {
	env.println("// n_" + i + "=" + getExp(i).C_getValue());
      }
    }
    getType().C_emitType(env, "*a");
    env.println(";");
    env.unindent();
    env.print("} " + name);
  }

  public String Exp.C_getValue() {
   throw new Error(this.getClass().getName() + 
		    ".C_getValue()" + 
		    " not declared");
  }

  public String IntegerLiteral.C_getValue() {
    return getValue();
  }

}

aspect C_Declarations {

350
  public void Decl.C_emitDecoderDeclaration(C_env env) {
Anders Nilsson's avatar
Anders Nilsson committed
351
352
  }

353
  public void SampleDecl.C_emitDecoderDeclaration(C_env env) {
354
    env.println("int labcomm_decoder_register_" + 
Anders Nilsson's avatar
Anders Nilsson committed
355
356
357
358
359
360
361
362
363
364
365
366
		env.prefix + getName() + "(");
    env.indent();
    env.println("struct labcomm_decoder *d,");
    env.println("void (*handler)(");
    env.indent();
    env.println(env.prefix + getName() + " *v,");
    env.println("void *context");
    env.unindent();
    env.println("),");
    env.println("void *context");
    env.unindent();
    env.println(");");
367
368
369
370
371
372
373
374

    env.println("int labcomm_decoder_ioctl_" + env.prefix + getName() + "(");
    env.indent();
    env.println("struct labcomm_decoder *d,");
    env.println("int ioctl_action,");
    env.println("...");
    env.unindent();
    env.println(");");
Anders Nilsson's avatar
Anders Nilsson committed
375
376
377
378
379
380
  }
  
  public void Decl.C_emitEncoderDeclaration(C_env env) {
  }

  public void SampleDecl.C_emitEncoderDeclaration(C_env env) {
381
    env.println("int labcomm_encoder_register_" + 
Anders Nilsson's avatar
Anders Nilsson committed
382
383
384
385
386
		env.prefix + getName() + "(");
    env.indent();
    env.println("struct labcomm_encoder *e);");
    env.unindent();

387
    env.println("int labcomm_encode_" + env.prefix + getName() + "(");
Anders Nilsson's avatar
Anders Nilsson committed
388
389
390
391
392
    env.indent();
    env.println("struct labcomm_encoder *e,");
    env.println(env.prefix + getName() + " *v");
    env.unindent();
    env.println(");");
393
394
395
396
397
398
399
400

    env.println("int labcomm_encoder_ioctl_" + env.prefix + getName() + "(");
    env.indent();
    env.println("struct labcomm_encoder *e,");
    env.println("int ioctl_action,");
    env.println("...");
    env.unindent();
    env.println(");");
Anders Nilsson's avatar
Anders Nilsson committed
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
  }

}

aspect C_Limit {

  public String Exp.C_getLimit(C_env env, int i) {
    throw new Error(this.getClass().getName() + 
		    ".C_emitDecoderLimit(C_env env, int i)" + 
		    " not declared");
  }

  public String IntegerLiteral.C_getLimit(C_env env, int i) {
    return getValue();
  }

  public String VariableSize.C_getLimit(C_env env, int i) {
    return env.qualid + ".n_" + i;
  }
  
}

aspect C_Index {

  public void ArrayType.C_emitCalcIndex(C_env env) {
  }

  public void VariableArrayType.C_emitCalcIndex(C_env env) {
    env.print("int i_" + env.depth + " = ");

    String i_prefix = "i_" + env.depth + "_";
    String expr = i_prefix + "0";
    for (int i = 1 ; i < getNumExp() ; i++) {
      expr = "(" + expr + ") * " +
	getExp(i).C_getLimit(env, i) + " + " + 
	i_prefix + i;
    }
    env.println(expr + ";");
  }

}

aspect C_Decoder {

  public void Decl.C_emitDecoder(C_env env) {
    throw new Error(this.getClass().getName() + 
		    ".C_emitDecoder(C_env env)" + 
		    " not declared");
  }

  public void TypeDecl.C_emitDecoder(C_env env) {
  }

  public void SampleDecl.C_emitDecoder(C_env env) {
    env = env.nestStruct("v");
456
    env.println("static void decode_" + env.prefix + getName() + "(");
Anders Nilsson's avatar
Anders Nilsson committed
457
    env.indent();
458
    env.println("struct labcomm_reader *r,");
Anders Nilsson's avatar
Anders Nilsson committed
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
487
488
489
490
491
492
493
    env.println("void (*handle)(");
    env.indent();
    env.println(env.prefix + getName() + " *v,");
    env.println("void *context");
    env.unindent();
    env.println("),");
    env.println("void *context");
    env.unindent();
    env.println(")");
    env.println("{");
    env.indent();
    env.println(env.prefix + getName() + " v;");
    getType().C_emitDecoder(env);
    env.println("handle(&v, context);");
    if (C_isDynamic()) {
      env.println("{");
      env.indent();
      getType().C_emitDecoderDeallocation(env);
      env.unindent();
      env.println("}");
    }
    env.unindent();
    env.println("}");
  }

  public void Type.C_emitDecoder(C_env env) {
    throw new Error(this.getClass().getName() + 
		    ".C_emitDecoder(C_env env)" + 
		    " not declared");
  }

  public void VoidType.C_emitDecoder(C_env env) {
  }

  public void PrimType.C_emitDecoder(C_env env) {
494
    env.println(env.qualid + " = labcomm_read_" + getName() + "(r);");
Anders Nilsson's avatar
Anders Nilsson committed
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
  }

  public void UserType.C_emitDecoder(C_env env) {
    lookupType(getName()).getType().C_emitDecoder(env);
  }

  public void StructType.C_emitDecoder(C_env env) {
    for (int i = 0 ; i < getNumField() ; i++) {
      getField(i).C_emitDecoder(env);
    }
  }

  public void ArrayType.C_emitDecoder(C_env env) {
    C_emitDecoderDecodeLimit(env);
    C_emitDecoderArrayAllocate(env);
    env.println("{");
    env.indent();
    C_emitLoopVariables(env);
    for (int i = 0 ; i < getNumExp() ; i++) {
      String iterator = "i_" + env.depth + "_" + i;
      env.println("for (" + iterator + " = 0" +
		  " ; " +
		  iterator + " < " + getExp(i).C_getLimit(env, i) +
		  " ; " +
		  iterator + "++) {");
      env.indent();
    }
    C_emitCalcIndex(env);
    getType().C_emitDecoder(C_Nest(env));
    for (int i = getNumExp() - 1 ; i >= 0 ; i--) {
      env.unindent();
      env.println("}");
    }
    env.unindent();
    env.println("}");
  }

  public void Field.C_emitDecoder(C_env env) {
    getType().C_emitDecoder(env.nestStruct("." + getName()));
  }

  public void Exp.C_emitDecoderDecodeLimit(C_env env, int i) {
  }

  public void VariableSize.C_emitDecoderDecodeLimit(C_env env, int i) {
540
    env.println(env.qualid + ".n_" + i + " = labcomm_read_packed32(r);");
Anders Nilsson's avatar
Anders Nilsson committed
541
542
543
544
545
546
547
548
549
550
551
552
  }

  public void ArrayType.C_emitDecoderDecodeLimit(C_env env) {
    for (int i = 0 ; i < getNumExp() ; i++) {
      getExp(i).C_emitDecoderDecodeLimit(env, i);
    }
  }

  public void ArrayType.C_emitDecoderArrayAllocate(C_env env) {
  }

  public void VariableArrayType.C_emitDecoderArrayAllocate(C_env env) {
553
554
555
    env.print(env.qualid + 
              ".a = labcomm_memory_alloc(r->memory, 1, sizeof(" + 
	      env.qualid + ".a[0])");
Anders Nilsson's avatar
Anders Nilsson committed
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
    for (int i = 0 ; i < getNumExp() ; i++) {
      env.print(" * " + getExp(i).C_getLimit(env, i));
    }
    env.println(");");
  }

  // Code for deallocation of dynamically allocated data 

  public void Type.C_emitDecoderDeallocation(C_env env) {
    throw new Error(this.getClass().getName() + 
		    ".C_emitDecoderDeallocation(C_env env)" + 
		    " not declared");
  }

  public void PrimType.C_emitDecoderDeallocation(C_env env) {
    if (C_isDynamic()) {
572
573
      env.println("labcomm_memory_free(r->memory, 1, " + 
                  env.qualid + ");");
Anders Nilsson's avatar
Anders Nilsson committed
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
    }
  }

  public void UserType.C_emitDecoderDeallocation(C_env env) {
    if (C_isDynamic()) {
      lookupType(getName()).getType().C_emitDecoderDeallocation(env);
    }
  }

  public void StructType.C_emitDecoderDeallocation(C_env env) {
    if (C_isDynamic()) {
      for (int i = 0 ; i < getNumField() ; i++) {
	getField(i).C_emitDecoderDeallocation(env);
      }
    }
  }

  public void ArrayType.C_emitDecoderDeallocation(C_env env) {
    if (getType().C_isDynamic()) {
      env.println("{");
      env.indent();
      C_emitLoopVariables(env);
      for (int i = 0 ; i < getNumExp() ; i++) {
	String iterator = "i_" + env.depth + "_" + i;
	env.println("for (" + iterator + " = 0" +
		    " ; " +
		    iterator + " < " + getExp(i).C_getLimit(env, i) +
		    " ; " +
		    iterator + "++) {");
	env.indent();
      }
      C_emitCalcIndex(env);
      getType().C_emitDecoderDeallocation(C_Nest(env));
      for (int i = 0 ; i < getNumExp() ; i++) {
	env.unindent();
	env.println("}");
      }
      env.unindent();
      env.println("}");
    }
  }

  public void VariableArrayType.C_emitDecoderDeallocation(C_env env) {
    super.C_emitDecoderDeallocation(env);
618
619
    env.println("labcomm_memory_free(r->memory, 1, " + 
                env.qualid + ".a);");
Anders Nilsson's avatar
Anders Nilsson committed
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
  }

  public void Field.C_emitDecoderDeallocation(C_env env) {
    getType().C_emitDecoderDeallocation(env.nestStruct("." + getName()));
  }

  public void Decl.C_emitDecoderRegisterHandler(C_env env) {
    throw new Error(this.getClass().getName() + 
		    ".C_emitDecoderRegisterHandler(C_env env)" + 
		    " not declared");
  }

  public void TypeDecl.C_emitDecoderRegisterHandler(C_env env) {
  }

  public void SampleDecl.C_emitDecoderRegisterHandler(C_env env) {
636
    env.println("int labcomm_decoder_register_" + 
Anders Nilsson's avatar
Anders Nilsson committed
637
638
639
640
641
642
643
644
645
646
647
648
649
650
		env.prefix + getName() + "(");
    env.indent();
    env.println("struct labcomm_decoder *d,");
    env.println("void (*handler)(");
    env.indent();
    env.println(env.prefix + getName() + " *v,");
    env.println("void *context");
    env.unindent();
    env.println("),");
    env.println("void *context");
    env.unindent();
    env.println(")");
    env.println("{");
    env.indent();
651
    env.println("return labcomm_internal_decoder_register(");
Anders Nilsson's avatar
Anders Nilsson committed
652
653
654
    env.indent();
    env.println("d,");
    env.println("&labcomm_signature_" + env.prefix + getName() + ",");
655
    env.println("(labcomm_decoder_function)decode_" + env.prefix + getName() + ",");
656
    env.println("(labcomm_handler_function)handler,");
Anders Nilsson's avatar
Anders Nilsson committed
657
658
659
660
661
662
663
664
665
    env.println("context");
    env.unindent();
    env.println(");");
    env.unindent();
    env.println("}");
  }

}

666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
aspect C_DecoderIoctl {

  public void Decl.C_emitDecoderIoctl(C_env env) {
    throw new Error(this.getClass().getName() + 
		    ".C_emitDecoderIoctl(C_env env)" + 
		    " not declared");
  }

  public void TypeDecl.C_emitDecoderIoctl(C_env env) {
  }

  public void SampleDecl.C_emitDecoderIoctl(C_env env) {
    env.println("int labcomm_decoder_ioctl_" + env.prefix + getName() + "(");
    env.indent();
    env.println("struct labcomm_decoder *d,");
    env.println("int ioctl_action,");
    env.println("...");
    env.unindent();
    env.println(")");
    env.println("{");
    env.indent();
    env.println("int result;");
    env.println("va_list va;");
    env.println("va_start(va, ioctl_action);");
    env.println("result = labcomm_internal_decoder_ioctl(");
    env.indent();
692
693
    env.println("d, &labcomm_signature_" + env.prefix + getName() + ", ");
    env.println("ioctl_action, va);");
694
695
696
697
698
699
700
701
    env.unindent();
    env.println("va_end(va);");
    env.println("return result;");
    env.unindent();
    env.println("}");
  }
}

Anders Nilsson's avatar
Anders Nilsson committed
702
703
704
705
706
707
708
709
710
711
712
713
714
715

aspect C_Encoder {

  public void Decl.C_emitEncoder(C_env env) {
    throw new Error(this.getClass().getName() + 
		    ".C_emitEncoder()" + 
		    " not declared");
  }

  public void TypeDecl.C_emitEncoder(C_env env) {
  }

  public void SampleDecl.C_emitEncoder(C_env env) {
    env = env.nestStruct("(*v)");
716
    env.println("static int encode_" + env.prefix + getName() + "(");
Anders Nilsson's avatar
Anders Nilsson committed
717
    env.indent();
718
    env.println("struct labcomm_writer *w,");
Anders Nilsson's avatar
Anders Nilsson committed
719
720
721
722
723
    env.println(env.prefix + getName() + " *v");
    env.unindent();
    env.println(")");
    env.println("{");
    env.indent();
724
    env.println("int result = 0;");
Anders Nilsson's avatar
Anders Nilsson committed
725
    getType().C_emitEncoder(env);
726
    env.println("return result;");
Anders Nilsson's avatar
Anders Nilsson committed
727
728
729
730
    env.unindent();
    env.println("}");

    // Typesafe encode wrapper
731
    env.println("int labcomm_encode_" + env.prefix + getName() + "(");
732
    env.println("struct labcomm_encoder *e,");
Anders Nilsson's avatar
Anders Nilsson committed
733
734
735
736
737
    env.println(env.prefix + getName() + " *v");
    env.unindent();
    env.println(")");
    env.println("{");
    env.indent();
738
    env.println("return labcomm_internal_encode(e, &labcomm_signature_" + 
739
		env.prefix + getName() + 
740
		", (labcomm_encoder_function)encode_" + env.prefix + getName() +
741
		", v);");
Anders Nilsson's avatar
Anders Nilsson committed
742
743
744
745
746
747
748
749
750
751
752
    env.unindent();
    env.println("}");
  }

  public void Type.C_emitEncoder(C_env env) {
    throw new Error(this.getClass().getName() + 
		    ".C_emitEncoder(C_env env)" + 
		    " not declared");
  }

  public void VoidType.C_emitEncoder(C_env env) {
753
    env.println("result = 0;");
Anders Nilsson's avatar
Anders Nilsson committed
754
755
756
  }

  public void PrimType.C_emitEncoder(C_env env) {
757
758
    env.println("result = labcomm_write_" + getName() + 
                "(w, " + env.qualid + ");");
759
    env.println("if (result != 0) { return result; }");
Anders Nilsson's avatar
Anders Nilsson committed
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
  }

  public void UserType.C_emitEncoder(C_env env) {
    lookupType(getName()).getType().C_emitEncoder(env);
  }

  public void StructType.C_emitEncoder(C_env env) {
    for (int i = 0 ; i < getNumField() ; i++) {
      getField(i).C_emitEncoder(env);
    }
  }

  public void ArrayType.C_emitEncoder(C_env env) {
    C_emitEncoderEncodeLimit(env);
    env.println("{");
    env.indent();
    C_emitLoopVariables(env);
    for (int i = 0 ; i < getNumExp() ; i++) {
      String iterator = "i_" + env.depth + "_" + i;
      env.println("for (" + iterator + " = 0" +
		  " ; " +
		  iterator + " < " + getExp(i).C_getLimit(env, i) +
		  " ; " +
		  iterator + "++) {");
      env.indent();
    }
    C_emitCalcIndex(env);
    getType().C_emitEncoder(C_Nest(env));
    for (int i = getNumExp() - 1 ; i >= 0 ; i--) {
      env.unindent();
      env.println("}");
    }
    env.unindent();
    env.println("}");
  }

  public void Field.C_emitEncoder(C_env env) {
    getType().C_emitEncoder(env.nestStruct("." + getName()));
  }

  public void Exp.C_emitEncoderEncodeLimit(C_env env, int i) {
  }

  public void VariableSize.C_emitEncoderEncodeLimit(C_env env, int i) {
804
    env.println("labcomm_write_packed32(w, " + env.qualid + ".n_" + i + ");");
Anders Nilsson's avatar
Anders Nilsson committed
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
  }

  public void ArrayType.C_emitEncoderEncodeLimit(C_env env) {
    for (int i = 0 ; i < getNumExp() ; i++) {
      getExp(i).C_emitEncoderEncodeLimit(env, i);
    }
  }

  public void Decl.C_emitEncoderRegisterHandler(C_env env) {
    throw new Error(this.getClass().getName() + 
		    ".C_emitEncoderRegisterHandler(C_env env)" + 
		    " not declared");
  }

  public void TypeDecl.C_emitEncoderRegisterHandler(C_env env) {
  }

  public void SampleDecl.C_emitEncoderRegisterHandler(C_env env) {
823
    env.println("int labcomm_encoder_register_" + 
Anders Nilsson's avatar
Anders Nilsson committed
824
825
826
827
828
829
830
		env.prefix + getName() + "(");
    env.indent();
    env.println("struct labcomm_encoder *e");
    env.unindent();
    env.println(")");
    env.println("{");
    env.indent();
831
    env.println("return labcomm_internal_encoder_register(");
Anders Nilsson's avatar
Anders Nilsson committed
832
833
834
    env.indent();
    env.println("e,");
    env.println("&labcomm_signature_" + env.prefix + getName() + ",");
835
    env.println("(labcomm_encoder_function)encode_" + env.prefix + getName());
Anders Nilsson's avatar
Anders Nilsson committed
836
837
838
839
840
    env.unindent();
    env.println(");");
    env.unindent();
    env.println("}");
  }
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869

}

aspect C_EncoderIoctl {

  public void Decl.C_emitEncoderIoctl(C_env env) {
    throw new Error(this.getClass().getName() + 
		    ".C_emitEncoderIoctl()" + 
		    " not declared");
  }

  public void TypeDecl.C_emitEncoderIoctl(C_env env) {
  }

  public void SampleDecl.C_emitEncoderIoctl(C_env env) {
    env.println("int labcomm_encoder_ioctl_" + env.prefix + getName() + "(");
    env.indent();
    env.println("struct labcomm_encoder *e,");
    env.println("int ioctl_action,");
    env.println("...");
    env.unindent();
    env.println(")");
    env.println("{");
    env.indent();
    env.println("int result;");
    env.println("va_list va;");
    env.println("va_start(va, ioctl_action);");
    env.println("result = labcomm_internal_encoder_ioctl(");
    env.indent();
870
871
    env.println("e, &labcomm_signature_" + env.prefix + getName() + ", ");
    env.println("ioctl_action, va);");
872
873
874
875
876
877
    env.unindent();
    env.println("va_end(va);");
    env.println("return result;");
    env.unindent();
    env.println("}");
  }
Anders Nilsson's avatar
Anders Nilsson committed
878
879
880
881
882

}

aspect C_Signature {

883
  public void ASTNode.C_emitSignatureBitsAndForward(C_env env) {
Anders Nilsson's avatar
Anders Nilsson committed
884
    throw new Error(this.getClass().getName() + 
885
		    ".C_emitSignaturBitsAndForwarde(C_env env)" + 
Anders Nilsson's avatar
Anders Nilsson committed
886
887
888
		    " not declared");
  }

889
  public void Decl.C_emitSignatureBitsAndForward(C_env env) {
Anders Nilsson's avatar
Anders Nilsson committed
890
891
  }

892
  public void SampleDecl.C_emitSignatureBitsAndForward(C_env env) {
Anders Nilsson's avatar
Anders Nilsson committed
893
    env.println("static unsigned char signature_bytes_" + 
894
		       env.prefix + getName() + "[] = {");
Anders Nilsson's avatar
Anders Nilsson committed
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
    SignatureList signature = signature();
    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);
      if (data != null) {
        env.print(signature.getIndent(i));
        for (int j = 0 ; j < data.length ; j++) {
          env.print(data[j] + ", ");
        }
        env.println("");
      }
    }
    env.println("};");
911
    env.println("LABCOMM_DECLARE_SIGNATURE(labcomm_signature_" + 
912
		env.prefix + getName() + ");");
Anders Nilsson's avatar
Anders Nilsson committed
913
914
  }

915
  public void ASTNode.C_emitSignature(C_env env) {
Anders Nilsson's avatar
Anders Nilsson committed
916
    throw new Error(this.getClass().getName() + 
917
		    ".C_emitSignature(C_env env)" + 
Anders Nilsson's avatar
Anders Nilsson committed
918
919
920
		    " not declared");
  }

921
  public void Decl.C_emitSignature(C_env env) {
Anders Nilsson's avatar
Anders Nilsson committed
922
923
  }

924
925
926
927
928
929
930
931
932
933
934
  public void SampleDecl.C_emitSignature(C_env env) {
    env.println("LABCOMM_DECLARE_SIGNATURE(labcomm_signature_" + 
		env.prefix + getName() + ") = {");
    env.indent();
    env.println("LABCOMM_SAMPLE, \"" + getName() + "\",");
    env.println("(int (*)(struct labcomm_signature *, void *))labcomm_sizeof_" + 
		env.prefix + getName() + ",");
    env.println("sizeof(signature_bytes_" + env.prefix + getName() + "),");
    env.println("signature_bytes_" + env.prefix + getName());
    env.unindent();
    env.println(" };");
Anders Nilsson's avatar
Anders Nilsson committed
935
936
937
938
939
940
941
942
943
944
945
946
  }


}

aspect C_Sizeof {

  public void Decl.C_emitSizeofDeclaration(C_env env) {
  }

  public void SampleDecl.C_emitSizeofDeclaration(C_env env) {
    env.println("extern int labcomm_sizeof_" + env.prefix + getName() +
947
		"(struct labcomm_signature *sig, " + env.prefix + getName() + " *v);");
Anders Nilsson's avatar
Anders Nilsson committed
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
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
1001
1002
1003
1004
1005
1006
1007
  }

  public int Decl.C_fixedSizeof() {
    return getType().C_fixedSizeof();
  }

  public int Type.C_fixedSizeof() {
    throw new Error(this.getClass().getName() + 
		    ".C_fixedSizeof()" + 
		    " not declared");
  }

  public int VoidType.C_fixedSizeof() {
    return 0;
  }

  public int PrimType.C_fixedSizeof() {
    switch (getToken()) {
      case LABCOMM_BOOLEAN: { return 1; } 
      case LABCOMM_BYTE: { return 1; } 
      case LABCOMM_SHORT: { return 2; } 
      case LABCOMM_INT: { return 4; } 
      case LABCOMM_LONG: { return 8; }
      case LABCOMM_FLOAT: { return 4; }
      case LABCOMM_DOUBLE: { return 8; }
      default: { 
	throw new Error(this.getClass().getName() + 
			".C_fixedSizeof()" + 
			" unknown size (" + getName() + ")"); 
      } 
    }
  }

  public int UserType.C_fixedSizeof() {
    return lookupType(getName()).getType().C_fixedSizeof();
  }

  public int StructType.C_fixedSizeof() {
    int result = 0;
    for (int i = 0 ; i < getNumField() ; i++) {
      result += getField(i).getType().C_fixedSizeof();
    }
    return result;
  }

  public int ArrayType.C_fixedSizeof() {
    int elements = 1;
    for (int i = 0 ; i < getNumExp() ; i++) {
      int n = Integer.parseInt(((IntegerLiteral)getExp(i)).getValue());
      elements = elements * n;
    }
    return getType().C_fixedSizeof() * elements;
  }

  public void Decl.C_emitSizeof(C_env env) {
  }

  public void SampleDecl.C_emitSizeof(C_env env) {
    env = env.nestStruct("(*v)");
    env.println("int labcomm_sizeof_" + env.prefix + getName() +
1008
		"(struct labcomm_signature *sig, " + env.prefix + getName() + " *v)");
Anders Nilsson's avatar
Anders Nilsson committed
1009
1010
1011
    env.println("{");
    env.indent();
    if (C_isDynamic()) {
1012
      env.println("int result = 0;");
Anders Nilsson's avatar
Anders Nilsson committed
1013
1014
1015
      getType().C_emitSizeof(env);
      env.println("return result;");
    } else {
1016
      env.println("return " + (0 + C_fixedSizeof()) + ";");
Anders Nilsson's avatar
Anders Nilsson committed
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
    }    
    env.unindent();
    env.println("}");
  }

  public void Type.C_emitSizeof(C_env env) {
    throw new Error(this.getClass().getName() + 
		    ".C_emitSizeof(C_env env)" + 
		    " not declared");
  }

  public void PrimType.C_emitSizeof(C_env env) {
    switch (getToken()) {
      case LABCOMM_STRING: { 
1031
	env.println("result += 0 + strlen(" + env.qualid + ");"); 
Anders Nilsson's avatar
Anders Nilsson committed
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
      } break;
      default: { 
	throw new Error(this.getClass().getName() + 
			".C_emitSizeof(C_env env)" + 
			" known size (" + getName() + ")"); 
      } 
    }
  }

  public void UserType.C_emitSizeof(C_env env) {
    lookupType(getName()).getType().C_emitSizeof(env);
  }

  public void StructType.C_emitSizeof(C_env env) {
    int fixed = 0;
    for (int i = 0 ; i < getNumField() ; i++) {
      if (getField(i).getType().C_isDynamic()) {
	getField(i).getType().C_emitSizeof(
	  env.nestStruct("." + getField(i).getName()));
      } else {
	fixed += getField(i).getType().C_fixedSizeof();
      }
    }
    if (fixed > 0) {
      env.println("result += " + fixed + ";");
    }
  }

  public void ArrayType.C_emitSizeof(C_env env) {
    if (getType().C_isDynamic()) {
      env.println("{");
      env.indent();
      C_emitLoopVariables(env);
      for (int i = 0 ; i < getNumExp() ; i++) {
	String iterator = "i_" + env.depth + "_" + i;
	env.println("for (" + iterator + " = 0" +
		    " ; " +
		    iterator + " < " + getExp(i).C_getLimit(env, i) +
		    " ; " +
		    iterator + "++) {");
	env.indent();
      }
      C_emitCalcIndex(env);
      getType().C_emitSizeof(C_Nest(env));
      for (int i = 0 ; i < getNumExp() ; i++) {
	env.unindent();
	env.println("}");
      }
      env.unindent();
      env.println("}");
    } else {
      env.print("result += " + getType().C_fixedSizeof());
      for (int i = 0 ; i < getNumExp() ; i++) {
	env.print(" * " + getExp(i).C_getLimit(env, i));
      }
      env.println(";");      
    }
  }

}

aspect C_forAll {

  public void Program.C_emitForAll(C_env env) {
    env.print("#define LABCOMM_FORALL_SAMPLES_" + env.lcName + 
		"(func, sep)");
    env.indent();
    boolean needSeparator = false;
    for (int i = 0; i < getNumDecl(); i++) {
      String s = getDecl(i).C_forAll(env);
      if (s != null) {
	if (needSeparator) { env.print(" sep"); }
	env.println(" \\");
	env.print(s);
	needSeparator = true;
      }
    }
    env.println("");
    env.unindent();
  }
  
  public String Decl.C_forAll(C_env env) {
    return null;
  }

  public String SampleDecl.C_forAll(C_env env) {
    return "func(" + getName() + ", " + env.prefix + getName() + ")";
  }

}

aspect C_Info {

  public void Program.C_info(PrintStream out, String prefix) {
    C_env env = new C_env("", "", prefix, out);
    for (int i = 0; i < getNumDecl(); i++) {
      getDecl(i).C_info(env);
    }
  }

  public void Decl.C_info(C_env env) {
    throw new Error(this.getClass().getName() + 
		    ".C_info((C_env env)" + 
		    " not declared");
  }

  public void TypeDecl.C_info(C_env env) {
Anders Blomdell's avatar
Anders Blomdell committed
1139
    env.println(",C,typedef," + env.prefix + getName() + "," + 
1140
                 env.prefix + getName());
Anders Nilsson's avatar
Anders Nilsson committed
1141
1142
1143
  }

  public void SampleDecl.C_info(C_env env) {
Anders Blomdell's avatar
Anders Blomdell committed
1144
    env.println(",C,sample," + env.prefix + getName() + "," + 
1145
                env.prefix + getName());
Anders Nilsson's avatar
Anders Nilsson committed
1146
1147
1148
  }

}