lib/as3/abc.c

   1 /* abc.c
   2
   3    Routines for handling Flash2 AVM2 ABC Actionscript
   4
   5    Extension module for the rfxswf library.
   6    Part of the swftools package.
   7
   8    Copyright (c) 2008 Matthias Kramm <kramm@quiss.org>
   9
  10    This program is free software; you can redistribute it and/or modify
  11    it under the terms of the GNU General Public License as published by
  12    the Free Software Foundation; either version 2 of the License, or
  13    (at your option) any later version.
  14
  15    This program is distributed in the hope that it will be useful,
  16    but WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18    GNU General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program; if not, write to the Free Software
  22    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
  23
  24 #include <stdarg.h>
  25 #include <assert.h>
  26 #include "../rfxswf.h"
  27 #include "../q.h"
  28 #include "abc.h"
  29
  30 char stringbuffer[2048];
  31
  32 int abc_RegisterNameSpace(abc_file_t*file, const char*name);
  33 int abc_RegisterPackageNameSpace(abc_file_t*file, const char*name);
  34 int abc_RegisterPackageInternalNameSpace(abc_file_t*file, const char*name);
  35 int abc_RegisterProtectedNameSpace(abc_file_t*file, const char*name);
  36 int abc_RegisterExplicitNameSpace(abc_file_t*file, const char*name);
  37 int abc_RegisterStaticProtectedNameSpace(abc_file_t*file, const char*name);
  38 int abc_RegisterPrivateNameSpace(abc_file_t*file, const char*name);
  39
  40 /* TODO: switch to a datastructure with just values */
  41 #define NO_KEY ""
  42
  43 static char* params_tostring(multiname_list_t*list)
  44 {
  45     multiname_list_t*l;
  46     int n = list_length(list);
  47     char**names = (char**)malloc(sizeof(char*)*n);
  48
  49     l = list;
  50     n = 0;
  51     int size = 0;
  52     while(l) {
  53         names[n] = multiname_tostring(l->multiname);
  54         size += strlen(names[n]) + 2;
  55         n++;l=l->next;
  56     }
  57
  58     char* params = malloc(size+15);
  59     params[0]='(';
  60     params[1]=0;
  61     l = list;
  62     int s=0;
  63     n = 0;
  64     while(l) {
  65         if(s)
  66             strcat(params, ", ");
  67         strcat(params, names[n]);
  68         free(names[n]);
  69         l = l->next;
  70         n++;
  71         s=1;
  72     }
  73     free(names);
  74     /*char num[20];
  75     sprintf(num, "[%d params]", n);
  76     strcat(params, num);*/
  77     strcat(params, ")");
  78     int t;
  79     return params;
  80 }
  81
  82 //#define DEBUG
  83 #define DEBUG if(0)
  84
  85 static void parse_metadata(TAG*tag, abc_file_t*file, pool_t*pool)
  86 {
  87     int t;
  88     int num_metadata = swf_GetU30(tag);
  89
  90     DEBUG printf("%d metadata\n");
  91     for(t=0;t<num_metadata;t++) {
  92         const char*entry_name = pool_lookup_string(pool, swf_GetU30(tag));
  93         int num = swf_GetU30(tag);
  94         int s;
  95         DEBUG printf("  %s\n", entry_name);
  96         array_t*items = array_new();
  97         for(s=0;s<num;s++) {
  98             int i1 = swf_GetU30(tag);
  99             int i2 = swf_GetU30(tag);
 100             char*key = i1?pool_lookup_string(pool, i1):"";
 101             char*value = i2?pool_lookup_string(pool, i2):"";
 102             DEBUG printf("    %s=%s\n", key, value);
 103             array_append(items, key, strdup(value));
 104         }
 105         array_append(file->metadata, entry_name, items);
 106     }
 107 }
 108
 109 void swf_CopyData(TAG*to, TAG*from, int len)
 110 {
 111     unsigned char*data = malloc(len);
 112     swf_GetBlock(from, data, len);
 113     swf_SetBlock(to, data, len);
 114     free(data);
 115 }
 116
 117 abc_file_t*abc_file_new()
 118 {
 119     abc_file_t*f = malloc(sizeof(abc_file_t));
 120     memset(f, 0, sizeof(abc_file_t));
 121     f->metadata = array_new();
 122
 123     f->methods = array_new();
 124     f->classes = array_new();
 125     f->scripts = array_new();
 126     f->method_bodies = array_new();
 127     f->flags = ABCFILE_LAZY;
 128
 129     return f;
 130 }
 131
 132 #define CLASS_SEALED 1
 133 #define CLASS_FINAL 2
 134 #define CLASS_INTERFACE 4
 135 #define CLASS_PROTECTED_NS 8
 136
 137 abc_class_t* abc_class_new(abc_file_t*file, multiname_t*classname, multiname_t*superclass) {
 138
 139     NEW(abc_class_t,c);
 140     array_append(file->classes, NO_KEY, c);
 141
 142     c->file = file;
 143     c->classname = classname;
 144     c->superclass = superclass;
 145     c->flags = 0;
 146     c->constructor = 0;
 147     c->static_constructor = 0;
 148     c->traits = list_new();
 149     return c;
 150 }
 151 abc_class_t* abc_class_new2(abc_file_t*pool, char*classname, char*superclass)
 152 {
 153     return abc_class_new(pool, multiname_fromstring(classname), multiname_fromstring(superclass));
 154 }
 155
 156 void abc_class_sealed(abc_class_t*c)
 157 {
 158     c->flags |= CLASS_SEALED;
 159 }
 160 void abc_class_final(abc_class_t*c)
 161 {
 162     c->flags |= CLASS_FINAL;
 163 }
 164 void abc_class_interface(abc_class_t*c)
 165 {
 166     c->flags |= CLASS_INTERFACE;
 167 }
 168 void abc_class_protectedNS(abc_class_t*c, char*namespace)
 169 {
 170     c->protectedNS = namespace_new_protected(namespace);
 171     c->flags |= CLASS_PROTECTED_NS;
 172 }
 173 void abc_class_add_interface(abc_class_t*c, multiname_t*interface)
 174 {
 175     list_append(c->interfaces, interface);
 176 }
 177
 178 abc_method_body_t* add_method(abc_file_t*file, abc_class_t*cls, multiname_t*returntype, int num_params, va_list va)
 179 {
 180     /* construct code (method body) object */
 181     NEW(abc_method_body_t,c);
 182     array_append(file->method_bodies, NO_KEY, c);
 183     c->file = file;
 184     c->traits = list_new();
 185     c->code = 0;
 186
 187     /* construct method object */
 188     NEW(abc_method_t,m);
 189     array_append(file->methods, NO_KEY, m);
 190
 191     m->return_type = returntype;
 192
 193     int t;
 194     for(t=0;t<num_params;t++) {
 195         const char*param = va_arg(va, const char*);
 196         list_append(m->parameters, multiname_fromstring(param));
 197     }
 198
 199     /* crosslink the two objects */
 200     m->body = c;
 201     c->method = m;
 202
 203     return c;
 204 }
 205
 206 abc_method_body_t* abc_class_constructor(abc_class_t*cls, multiname_t*returntype, int num_params, ...)
 207 {
 208     va_list va;
 209     va_start(va, num_params);
 210     abc_method_body_t* c = add_method(cls->file, cls, returntype, num_params, va);
 211     va_end(va);
 212     cls->constructor = c->method;
 213     return c;
 214 }
 215
 216 abc_method_body_t* abc_class_staticconstructor(abc_class_t*cls, multiname_t*returntype, int num_params, ...)
 217 {
 218     va_list va;
 219     va_start(va, num_params);
 220     abc_method_body_t* c = add_method(cls->file, cls, returntype, num_params, va);
 221     va_end(va);
 222     cls->static_constructor = c->method;
 223     return c;
 224 }
 225
 226 trait_t*trait_new(int type, multiname_t*name, int data1, int data2, constant_t*v)
 227 {
 228     trait_t*trait = malloc(sizeof(trait_t));
 229     memset(trait, 0, sizeof(trait_t));
 230     trait->kind = type&0x0f;
 231     trait->attributes = type&0xf0;
 232     trait->name = name;
 233     trait->data1 = data1;
 234     trait->data2 = data2;
 235     trait->value = v;
 236     return trait;
 237 }
 238 trait_t*trait_new_member(multiname_t*type, multiname_t*name,constant_t*v)
 239 {
 240     int kind = TRAIT_SLOT;
 241     trait_t*trait = malloc(sizeof(trait_t));
 242     memset(trait, 0, sizeof(trait_t));
 243     trait->kind = kind&0x0f;
 244     trait->attributes = kind&0xf0;
 245     trait->name = name;
 246     trait->type_name = type;
 247     return trait;
 248 }
 249 trait_t*trait_new_method(multiname_t*name, abc_method_t*m)
 250 {
 251     int type = TRAIT_METHOD;
 252     trait_t*trait = malloc(sizeof(trait_t));
 253     memset(trait, 0, sizeof(trait_t));
 254     trait->kind = type&0x0f;
 255     trait->attributes = type&0xf0;
 256     trait->name = name;
 257     trait->method = m;
 258     return trait;
 259 }
 260
 261 abc_method_body_t* abc_class_method(abc_class_t*cls, multiname_t*returntype, char*name, int num_params, ...)
 262 {
 263     abc_file_t*file = cls->file;
 264     va_list va;
 265     va_start(va, num_params);
 266     abc_method_body_t* c = add_method(cls->file, cls, returntype, num_params, va);
 267     va_end(va);
 268     list_append(cls->traits, trait_new_method(multiname_fromstring(name), c->method));
 269     return c;
 270 }
 271
 272 void abc_AddSlot(abc_class_t*cls, char*name, int slot, char*type)
 273 {
 274     abc_file_t*file = cls->file;
 275     multiname_t*m_name = multiname_fromstring(name);
 276     multiname_t*m_type = multiname_fromstring(type);
 277     trait_t*t = trait_new_member(m_type, m_name, 0);
 278     t->slot_id = list_length(cls->traits);
 279     list_append(cls->traits, t);
 280 }
 281
 282 void abc_method_body_addClassTrait(abc_method_body_t*code, char*multiname, int slotid, abc_class_t*cls)
 283 {
 284     abc_file_t*file = code->file;
 285     multiname_t*m = multiname_fromstring(multiname);
 286     trait_t*trait = trait_new(TRAIT_CLASS, m, slotid, 0, 0);
 287     trait->cls = cls;
 288     list_append(code->traits, trait);
 289 }
 290
 291 /* notice: traits of a method (body) belonging to an init script
 292    and traits of the init script are *not* the same thing */
 293 int abc_initscript_addClassTrait(abc_script_t*script, multiname_t*multiname, abc_class_t*cls)
 294 {
 295     abc_file_t*file = script->file;
 296     multiname_t*m = multiname_clone(multiname);
 297     int slotid = list_length(script->traits)+1;
 298     trait_t*trait = trait_new(TRAIT_CLASS, m, slotid, 0, 0);
 299     trait->cls = cls;
 300     list_append(script->traits, trait);
 301     return slotid;
 302 }
 303
 304 abc_script_t* abc_initscript(abc_file_t*file, multiname_t*returntype, int num_params, ...)
 305 {
 306     va_list va;
 307     va_start(va, num_params);
 308     abc_method_body_t* c = add_method(file, 0, returntype, num_params, va);
 309     abc_script_t* s = malloc(sizeof(abc_script_t));
 310     s->method = c->method;
 311     s->traits = list_new();
 312     s->file = file;
 313     array_append(file->scripts, NO_KEY, s);
 314     va_end(va);
 315     return s;
 316 }
 317
 318 static void traits_dump(FILE*fo, const char*prefix, trait_list_t*traits, abc_file_t*file);
 319
 320 static void dump_method(FILE*fo, const char*prefix, const char*type, const char*name, abc_method_t*m, abc_file_t*file)
 321 {
 322     char*return_type = 0;
 323     if(m->return_type)
 324         return_type = multiname_tostring(m->return_type);
 325     else
 326         return_type = strdup("void");
 327     char*paramstr = params_tostring(m->parameters);
 328     fprintf(fo, "%s%s %s %s=%s %s (%d params)\n", prefix, type, return_type, name, m->name, paramstr, list_length(m->parameters));
 329     free(paramstr);paramstr=0;
 330     free(return_type);return_type=0;
 331
 332     abc_method_body_t*c = m->body;
 333     if(!c) {
 334         return;
 335     }
 336
 337     fprintf(fo, "%s[stack:%d locals:%d scope:%d-%d flags:%02x]\n", prefix, c->old.max_stack, c->old.local_count, c->old.init_scope_depth, c->old.max_scope_depth, c->method->flags);
 338
 339     char prefix2[80];
 340     sprintf(prefix2, "%s    ", prefix);
 341     if(c->traits)
 342         traits_dump(fo, prefix, c->traits, file);
 343     fprintf(fo, "%s{\n", prefix);
 344     code_dump(c->code, c->exceptions, file, prefix2, fo);
 345     fprintf(fo, "%s}\n\n", prefix);
 346 }
 347
 348 static void traits_free(trait_list_t*traits)
 349 {
 350     trait_list_t*t = traits;
 351     while(t) {
 352         if(t->trait->name) {
 353             multiname_destroy(t->trait->name);t->trait->name = 0;
 354         }
 355         if(t->trait->kind == TRAIT_SLOT || t->trait->kind == TRAIT_CONST) {
 356             multiname_destroy(t->trait->type_name);
 357         }
 358         if(t->trait->value) {
 359             constant_free(t->trait->value);t->trait->value = 0;
 360         }
 361         free(t->trait);t->trait = 0;
 362         t = t->next;
 363     }
 364     list_free(traits);
 365 }
 366
 367 static char trait_is_method(trait_t*trait)
 368 {
 369     return (trait->kind == TRAIT_METHOD || trait->kind == TRAIT_GETTER ||
 370             trait->kind == TRAIT_SETTER || trait->kind == TRAIT_FUNCTION);
 371 }
 372
 373 static trait_list_t* traits_parse(TAG*tag, pool_t*pool, abc_file_t*file)
 374 {
 375     int num_traits = swf_GetU30(tag);
 376     trait_list_t*traits = list_new();
 377     int t;
 378     if(num_traits) {
 379         DEBUG printf("%d traits\n", num_traits);
 380     }
 381
 382     for(t=0;t<num_traits;t++) {
 383         NEW(trait_t,trait);
 384         list_append(traits, trait);
 385
 386         trait->name = multiname_clone(pool_lookup_multiname(pool, swf_GetU30(tag))); // always a QName (ns,name)
 387
 388         const char*name = 0;
 389         DEBUG name = multiname_tostring(trait->name);
 390         U8 kind = swf_GetU8(tag);
 391         U8 attributes = kind&0xf0;
 392         kind&=0x0f;
 393         trait->kind = kind;
 394         trait->attributes = attributes;
 395         DEBUG printf("  trait %d) %s type=%02x\n", t, name, kind);
 396         if(kind == TRAIT_METHOD || kind == TRAIT_GETTER || kind == TRAIT_SETTER) { // method / getter / setter
 397             trait->disp_id = swf_GetU30(tag);
 398             trait->method = (abc_method_t*)array_getvalue(file->methods, swf_GetU30(tag));
 399             DEBUG printf("  method/getter/setter\n");
 400         } else if(kind == TRAIT_FUNCTION) { // function
 401             trait->slot_id =  swf_GetU30(tag);
 402             trait->method = (abc_method_t*)array_getvalue(file->methods, swf_GetU30(tag));
 403         } else if(kind == TRAIT_CLASS) { // class
 404             trait->slot_id = swf_GetU30(tag);
 405             trait->cls = (abc_class_t*)array_getvalue(file->classes, swf_GetU30(tag));
 406             DEBUG printf("  class %s %d %d\n", name, trait->slot_id, trait->cls);
 407         } else if(kind == TRAIT_SLOT || kind == TRAIT_CONST) { // slot, const
 408             /* a slot is a variable in a class that is shared amonst all instances
 409                of the same type, but which has a unique location in each object
 410                (in other words, slots are non-static, traits are static)
 411              */
 412             trait->slot_id = swf_GetU30(tag);
 413             trait->type_name = multiname_clone(pool_lookup_multiname(pool, swf_GetU30(tag)));
 414             int vindex = swf_GetU30(tag);
 415             if(vindex) {
 416                 int vkind = swf_GetU8(tag);
 417                 trait->value = constant_fromindex(pool, vindex, vkind);
 418             }
 419             DEBUG printf("  slot %s %d %s (%s)\n", name, trait->slot_id, trait->type_name->name, constant_tostring(trait->value));
 420         } else {
 421             fprintf(stderr, "Can't parse trait type %d\n", kind);
 422         }
 423         if(attributes&0x40) {
 424             int num = swf_GetU30(tag);
 425             int s;
 426             for(s=0;s<num;s++) {
 427                 swf_GetU30(tag); //index into metadata array
 428             }
 429         }
 430     }
 431     return traits;
 432 }
 433
 434 void traits_skip(TAG*tag)
 435 {
 436     int num_traits = swf_GetU30(tag);
 437     int t;
 438     for(t=0;t<num_traits;t++) {
 439         swf_GetU30(tag);
 440         U8 kind = swf_GetU8(tag);
 441         U8 attributes = kind&0xf0;
 442         kind&=0x0f;
 443         swf_GetU30(tag);
 444         swf_GetU30(tag);
 445         if(kind == TRAIT_SLOT || kind == TRAIT_CONST) {
 446             if(swf_GetU30(tag)) swf_GetU8(tag);
 447         } else if(kind>TRAIT_CONST) {
 448             fprintf(stderr, "Can't parse trait type %d\n", kind);
 449         }
 450         if(attributes&0x40) {
 451             int s, num = swf_GetU30(tag);
 452             for(s=0;s<num;s++) swf_GetU30(tag);
 453         }
 454     }
 455 }
 456
 457
 458 static void traits_write(pool_t*pool, TAG*tag, trait_list_t*traits)
 459 {
 460     if(!traits) {
 461         swf_SetU30(tag, 0);
 462         return;
 463     }
 464     swf_SetU30(tag, list_length(traits));
 465     int s;
 466
 467     while(traits) {
 468         trait_t*trait = traits->trait;
 469
 470         swf_SetU30(tag, pool_register_multiname(pool, trait->name));
 471         swf_SetU8(tag, trait->kind|trait->attributes);
 472
 473         swf_SetU30(tag, trait->data1);
 474
 475         if(trait->kind == TRAIT_CLASS) {
 476             swf_SetU30(tag, trait->cls->index);
 477         } else if(trait->kind == TRAIT_GETTER ||
 478                   trait->kind == TRAIT_SETTER ||
 479                   trait->kind == TRAIT_METHOD) {
 480             swf_SetU30(tag, trait->method->index);
 481         } else if(trait->kind == TRAIT_SLOT ||
 482                   trait->kind == TRAIT_CONST) {
 483             int index = pool_register_multiname(pool, trait->type_name);
 484             swf_SetU30(tag, index);
 485         } else  {
 486             swf_SetU30(tag, trait->data2);
 487         }
 488
 489         if(trait->kind == TRAIT_SLOT || trait->kind == TRAIT_CONST) {
 490             int vindex = constant_get_index(pool, trait->value);
 491             swf_SetU30(tag, vindex);
 492             if(vindex) {
 493                 swf_SetU8(tag, trait->value->type);
 494             }
 495         }
 496         if(trait->attributes&0x40) {
 497             // metadata
 498             swf_SetU30(tag, 0);
 499         }
 500         traits = traits->next;
 501     }
 502 }
 503
 504
 505 static void traits_dump(FILE*fo, const char*prefix, trait_list_t*traits, abc_file_t*file)
 506 {
 507     int t;
 508     while(traits) {
 509         trait_t*trait = traits->trait;
 510         char*name = multiname_tostring(trait->name);
 511         U8 kind = trait->kind;
 512         U8 attributes = trait->attributes;
 513         if(kind == TRAIT_METHOD) {
 514             abc_method_t*m = trait->method;
 515             dump_method(fo, prefix, "method", name, m, file);
 516         } else if(kind == TRAIT_GETTER) {
 517             abc_method_t*m = trait->method;
 518             dump_method(fo, prefix, "getter", name, m, file);
 519         } else if(kind == TRAIT_SETTER) {
 520             abc_method_t*m = trait->method;
 521             dump_method(fo, prefix, "setter", name, m, file);
 522         } else if(kind == TRAIT_FUNCTION) { // function
 523             abc_method_t*m = trait->method;
 524             dump_method(fo, prefix, "function", name, m, file);
 525         } else if(kind == TRAIT_CLASS) { // class
 526             abc_class_t*cls = trait->cls;
 527             if(!cls) {
 528                 fprintf(fo, "%sslot %d: class %s=00000000\n", prefix, trait->slot_id, name);
 529             } else {
 530                 fprintf(fo, "%sslot %d: class %s=%s\n", prefix, trait->slot_id, name, cls->classname->name);
 531             }
 532         } else if(kind == TRAIT_SLOT || kind == TRAIT_CONST) { // slot, const
 533             int slot_id = trait->slot_id;
 534             char*type_name = multiname_tostring(trait->type_name);
 535             char*value = constant_tostring(trait->value);
 536             fprintf(fo, "%sslot %d: %s%s %s %s %s\n", prefix, trait->slot_id,
 537                     kind==TRAIT_CONST?"const ":"", type_name, name,
 538                     value?"=":"", value);
 539             if(value) free(value);
 540             free(type_name);
 541         } else {
 542             fprintf(fo, "%s    can't dump trait type %d\n", prefix, kind);
 543         }
 544         free(name);
 545         traits=traits->next;
 546     }
 547 }
 548
 549 void* swf_DumpABC(FILE*fo, void*code, char*prefix)
 550 {
 551     abc_file_t* file = (abc_file_t*)code;
 552
 553     if(file->name) {
 554         fprintf(fo, "%s#\n", prefix);
 555         fprintf(fo, "%s#name: %s\n", prefix, file->name);
 556         fprintf(fo, "%s#\n", prefix);
 557     }
 558
 559     int t;
 560     for(t=0;t<file->metadata->num;t++) {
 561         const char*entry_name = array_getkey(file->metadata, t);
 562         fprintf(fo, "%s#Metadata \"%s\":\n", prefix, entry_name);
 563         int s;
 564         array_t*items = (array_t*)array_getvalue(file->metadata, t);
 565         for(s=0;s<items->num;s++) {
 566             fprintf(fo, "%s#  %s=%s\n", prefix, array_getkey(items, s), array_getvalue(items,s));
 567         }
 568         fprintf(fo, "%s#\n", prefix);
 569     }
 570
 571     for(t=0;t<file->classes->num;t++) {
 572         abc_class_t*cls = (abc_class_t*)array_getvalue(file->classes, t);
 573         char prefix2[80];
 574         sprintf(prefix2, "%s    ", prefix);
 575
 576         fprintf(fo, "%s", prefix);
 577         if(cls->flags&1) fprintf(fo, "sealed ");
 578         if(cls->flags&2) fprintf(fo, "final ");
 579         if(cls->flags&4) fprintf(fo, "interface ");
 580         if(cls->flags&8) {
 581             char*s = namespace_tostring(cls->protectedNS);
 582             fprintf(fo, "protectedNS(%s) ", s);
 583             free(s);
 584         }
 585
 586         char*classname = multiname_tostring(cls->classname);
 587         fprintf(fo, "class %s", classname);
 588         free(classname);
 589         if(cls->superclass) {
 590             char*supername = multiname_tostring(cls->superclass);
 591             fprintf(fo, " extends %s", supername);
 592             free(supername);
 593             multiname_list_t*ilist = cls->interfaces;
 594             if(ilist)
 595                 fprintf(fo, " implements");
 596             while(ilist) {
 597                 char*s = multiname_tostring(ilist->multiname);
 598                 fprintf(fo, " %s", s);
 599                 free(s);
 600                 ilist = ilist->next;
 601             }
 602             ilist->next;
 603         }
 604         if(cls->flags&0xf0)
 605             fprintf(fo, "extra flags=%02x\n", cls->flags&0xf0);
 606         fprintf(fo, "%s{\n", prefix);
 607
 608         if(cls->static_constructor)
 609             dump_method(fo, prefix2,"staticconstructor", "", cls->static_constructor, file);
 610         traits_dump(fo, prefix2, cls->static_constructor_traits, file);
 611
 612         char*n = multiname_tostring(cls->classname);
 613         if(cls->constructor)
 614             dump_method(fo, prefix2, "constructor", n, cls->constructor, file);
 615         free(n);
 616         traits_dump(fo, prefix2,cls->traits, file);
 617         fprintf(fo, "%s}\n", prefix);
 618     }
 619     fprintf(fo, "%s\n", prefix);
 620
 621     for(t=0;t<file->scripts->num;t++) {
 622         abc_script_t*s = (abc_script_t*)array_getvalue(file->scripts, t);
 623         dump_method(fo, prefix,"initmethod", "init", s->method, file);
 624         traits_dump(fo, prefix, s->traits, file);
 625     }
 626     return file;
 627 }
 628
 629 void* swf_ReadABC(TAG*tag)
 630 {
 631     abc_file_t* file = abc_file_new();
 632     pool_t*pool = pool_new();
 633
 634     swf_SetTagPos(tag, 0);
 635     int t;
 636     if(tag->id == ST_DOABC) {
 637         U32 abcflags = swf_GetU32(tag);
 638         DEBUG printf("flags=%08x\n", abcflags);
 639         char*name= swf_GetString(tag);
 640         file->name = (name&&name[0])?strdup(name):0;
 641     }
 642     U32 version = swf_GetU32(tag);
 643     if(version!=0x002e0010) {
 644         fprintf(stderr, "Warning: unknown AVM2 version %08x\n", version);
 645     }
 646
 647     pool_read(pool, tag);
 648
 649     int num_methods = swf_GetU30(tag);
 650     DEBUG printf("%d methods\n", num_methods);
 651     for(t=0;t<num_methods;t++) {
 652         NEW(abc_method_t,m);
 653         int param_count = swf_GetU30(tag);
 654         int return_type_index = swf_GetU30(tag);
 655         if(return_type_index)
 656             m->return_type = multiname_clone(pool_lookup_multiname(pool, return_type_index));
 657         else
 658             m->return_type = 0;
 659
 660         int s;
 661         for(s=0;s<param_count;s++) {
 662             int type_index = swf_GetU30(tag);
 663
 664             /* type_index might be 0, which probably means "..." (varargs) */
 665             multiname_t*param = type_index?multiname_clone(pool_lookup_multiname(pool, type_index)):0;
 666             list_append(m->parameters, param);
 667         }
 668
 669         int namenr = swf_GetU30(tag);
 670         if(namenr)
 671             m->name = strdup(pool_lookup_string(pool, namenr));
 672         else
 673             m->name = strdup("");
 674
 675         m->flags = swf_GetU8(tag);
 676
 677         DEBUG printf("method %d) %s flags=%02x\n", t, params_tostring(m->parameters), m->flags);
 678
 679         if(m->flags&0x08) {
 680             /* TODO optional parameters */
 681             m->optional_parameters = list_new();
 682             int num = swf_GetU30(tag);
 683             int s;
 684             for(s=0;s<num;s++) {
 685                 int vindex = swf_GetU30(tag);
 686                 U8 vkind = swf_GetU8(tag); // specifies index type for "val"
 687                 constant_t*c = constant_fromindex(pool, vindex, vkind);
 688                 list_append(m->optional_parameters, c);
 689             }
 690         }
 691         if(m->flags&0x80) {
 692             /* debug information- not used by avm2 */
 693             multiname_list_t*l = m->parameters;
 694             while(l) {
 695                 char*name = pool_lookup_string(pool, swf_GetU30(tag));
 696                 l = l->next;
 697             }
 698         }
 699         array_append(file->methods, NO_KEY, m);
 700     }
 701
 702     parse_metadata(tag, file, pool);
 703
 704     /* skip classes, and scripts for now, and do the real parsing later */
 705     int num_classes = swf_GetU30(tag);
 706     int classes_pos = tag->pos;
 707     DEBUG printf("%d classes\n", num_classes);
 708     for(t=0;t<num_classes;t++) {
 709         abc_class_t*cls = malloc(sizeof(abc_class_t));
 710         memset(cls, 0, sizeof(abc_class_t));
 711
 712         DEBUG printf("class %d\n", t);
 713         swf_GetU30(tag); //classname
 714         swf_GetU30(tag); //supername
 715
 716         array_append(file->classes, NO_KEY, cls);
 717
 718         cls->flags = swf_GetU8(tag);
 719         if(cls->flags&8)
 720             swf_GetU30(tag); //protectedNS
 721         int s;
 722         int inum = swf_GetU30(tag); //interface count
 723         cls->interfaces = 0;
 724         for(s=0;s<inum;s++) {
 725             int interface_index = swf_GetU30(tag);
 726             multiname_t* m = multiname_clone(pool_lookup_multiname(pool, interface_index));
 727             list_append(cls->interfaces, m);
 728             DEBUG printf("  class %d interface: %s\n", t, m->name);
 729         }
 730
 731         swf_GetU30(tag); //iinit
 732         traits_skip(tag);
 733     }
 734     for(t=0;t<num_classes;t++) {
 735         abc_class_t*cls = (abc_class_t*)array_getvalue(file->classes, t);
 736         int cinit = swf_GetU30(tag);
 737         cls->static_constructor = (abc_method_t*)array_getvalue(file->methods, cinit);
 738         traits_skip(tag);
 739     }
 740     int num_scripts = swf_GetU30(tag);
 741     DEBUG printf("%d scripts\n", num_scripts);
 742     for(t=0;t<num_scripts;t++) {
 743         int init = swf_GetU30(tag);
 744         traits_skip(tag);
 745     }
 746
 747     int num_method_bodies = swf_GetU30(tag);
 748     DEBUG printf("%d method bodies\n", num_method_bodies);
 749     for(t=0;t<num_method_bodies;t++) {
 750         int methodnr = swf_GetU30(tag);
 751         if(methodnr >= file->methods->num) {
 752             printf("Invalid method number: %d\n", methodnr);
 753             return 0;
 754         }
 755         abc_method_t*m = (abc_method_t*)array_getvalue(file->methods, methodnr);
 756         abc_method_body_t*c = malloc(sizeof(abc_method_body_t));
 757         memset(c, 0, sizeof(abc_method_body_t));
 758         c->old.max_stack = swf_GetU30(tag);
 759         c->old.local_count = swf_GetU30(tag);
 760         c->old.init_scope_depth = swf_GetU30(tag);
 761         c->old.max_scope_depth = swf_GetU30(tag);
 762
 763         c->init_scope_depth = c->old.init_scope_depth;
 764         int code_length = swf_GetU30(tag);
 765
 766         c->method = m;
 767         m->body = c;
 768
 769         int pos = tag->pos + code_length;
 770         codelookup_t*codelookup = 0;
 771         c->code = code_parse(tag, code_length, file, pool, &codelookup);
 772         tag->pos = pos;
 773
 774         int exception_count = swf_GetU30(tag);
 775         int s;
 776         c->exceptions = list_new();
 777         for(s=0;s<exception_count;s++) {
 778             exception_t*e = malloc(sizeof(exception_t));
 779
 780             e->from = code_atposition(codelookup, swf_GetU30(tag));
 781             e->to = code_atposition(codelookup, swf_GetU30(tag));
 782             e->target = code_atposition(codelookup, swf_GetU30(tag));
 783
 784             e->exc_type = multiname_clone(pool_lookup_multiname(pool, swf_GetU30(tag)));
 785             e->var_name = multiname_clone(pool_lookup_multiname(pool, swf_GetU30(tag)));
 786             //e->var_name = pool_lookup_string(pool, swf_GetU30(tag));
 787             //if(e->var_name) e->var_name = strdup(e->var_name);
 788             list_append(c->exceptions, e);
 789         }
 790         codelookup_free(codelookup);
 791         c->traits = traits_parse(tag, pool, file);
 792
 793         DEBUG printf("method_body %d) (method %d), %d bytes of code", t, methodnr, code_length);
 794
 795         array_append(file->method_bodies, NO_KEY, c);
 796     }
 797     if(tag->len - tag->pos) {
 798         fprintf(stderr, "%d unparsed bytes remaining in ABC block\n", tag->len - tag->pos);
 799         return 0;
 800     }
 801
 802     swf_SetTagPos(tag, classes_pos);
 803     for(t=0;t<num_classes;t++) {
 804         abc_class_t*cls = (abc_class_t*)array_getvalue(file->classes, t);
 805
 806         int classname_index = swf_GetU30(tag);
 807         int superclass_index = swf_GetU30(tag);
 808         cls->classname = multiname_clone(pool_lookup_multiname(pool, classname_index));
 809         cls->superclass = multiname_clone(pool_lookup_multiname(pool, superclass_index));
 810         cls->flags = swf_GetU8(tag);
 811         const char*ns = "";
 812         if(cls->flags&8) {
 813             int ns_index = swf_GetU30(tag);
 814             cls->protectedNS = namespace_clone(pool_lookup_namespace(pool, ns_index));
 815         }
 816
 817         int num_interfaces = swf_GetU30(tag); //interface count
 818         int s;
 819         for(s=0;s<num_interfaces;s++) {
 820             swf_GetU30(tag); // multiname index TODO
 821         }
 822         int iinit = swf_GetU30(tag);
 823         cls->constructor = (abc_method_t*)array_getvalue(file->methods, iinit);
 824         cls->traits = traits_parse(tag, pool, file);
 825     }
 826     for(t=0;t<num_classes;t++) {
 827         abc_class_t*cls = (abc_class_t*)array_getvalue(file->classes, t);
 828         /* SKIP */
 829         swf_GetU30(tag); // cindex
 830         cls->static_constructor_traits = traits_parse(tag, pool, file);
 831     }
 832     int num_scripts2 = swf_GetU30(tag);
 833     for(t=0;t<num_scripts2;t++) {
 834         int init = swf_GetU30(tag);
 835         abc_method_t*m = (abc_method_t*)array_getvalue(file->methods, init);
 836
 837         abc_script_t*s = malloc(sizeof(abc_script_t));
 838         memset(s, 0, sizeof(abc_script_t));
 839         s->method = m;
 840         s->traits = traits_parse(tag, pool, file);
 841         array_append(file->scripts, NO_KEY, s);
 842     }
 843
 844     pool_destroy(pool);
 845     return file;
 846 }
 847
 848 void swf_WriteABC(TAG*abctag, void*code)
 849 {
 850     abc_file_t*file = (abc_file_t*)code;
 851     pool_t*pool = pool_new();
 852
 853     TAG*tmp = swf_InsertTag(0,0);
 854     TAG*tag = tmp;
 855     int t;
 856
 857     char need_null_method=0;
 858     for(t=0;t<file->classes->num;t++) {
 859         abc_class_t*c = (abc_class_t*)array_getvalue(file->classes, t);
 860         if(!c->constructor || !c->static_constructor) {
 861             need_null_method=1;
 862             break;
 863         }
 864     }
 865
 866     abc_method_t*nullmethod = 0;
 867     if(need_null_method) {
 868         NEW(abc_method_t,m);
 869         nullmethod = m;
 870         /*TODO: might be more efficient to have this at the beginning */
 871         array_append(file->methods, NO_KEY, nullmethod);
 872
 873         NEW(abc_method_body_t,body);
 874         body->method = m;
 875         m->body = body;
 876         __ returnvoid(body);
 877         array_append(file->method_bodies, NO_KEY, body);
 878     }
 879     for(t=0;t<file->classes->num;t++) {
 880         abc_class_t*c = (abc_class_t*)array_getvalue(file->classes, t);
 881         if(!c->constructor)
 882             c->constructor = nullmethod;
 883         if(!c->static_constructor)
 884             c->static_constructor = nullmethod;
 885     }
 886
 887     swf_SetU30(tag, file->methods->num);
 888     /* enumerate classes, methods and method bodies */
 889     for(t=0;t<file->methods->num;t++) {
 890         abc_method_t*m = (abc_method_t*)array_getvalue(file->methods, t);
 891         m->index = t;
 892     }
 893     for(t=0;t<file->classes->num;t++) {
 894         abc_class_t*c = (abc_class_t*)array_getvalue(file->classes, t);
 895         c->index = t;
 896     }
 897     for(t=0;t<file->method_bodies->num;t++) {
 898         abc_method_body_t*m = (abc_method_body_t*)array_getvalue(file->method_bodies, t);
 899         m->index = t;
 900     }
 901
 902     /* generate code statistics */
 903     for(t=0;t<file->method_bodies->num;t++) {
 904         abc_method_body_t*m = (abc_method_body_t*)array_getvalue(file->method_bodies, t);
 905         m->stats = code_get_statistics(m->code, m->exceptions);
 906     }
 907
 908     /* level init scope depths: The init scope depth of a method is
 909        always as least as high as the init scope depth of it's surrounding
 910        class.
 911        A method has it's own init_scope_depth if it's an init method
 912        (then its init scope depth is zero), or if it's used as a closure.
 913
 914        Not sure yet what to do with methods which are used at different
 915        locations- e.g. the nullmethod is used all over the place.
 916
 917        Also, I have the strong suspicion that flash player uses only
 918        the difference between max_scope_stack and init_scope_stack, anyway.
 919      */
 920     for(t=0;t<file->classes->num;t++) {
 921         abc_class_t*c = (abc_class_t*)array_getvalue(file->classes, t);
 922         trait_list_t*traits = c->traits;
 923         if(c->constructor &&
 924            c->constructor->body->init_scope_depth < c->init_scope_depth) {
 925            c->constructor->body->init_scope_depth = c->init_scope_depth;
 926         }
 927         if(c->static_constructor &&
 928            c->static_constructor->body->init_scope_depth < c->init_scope_depth) {
 929            c->static_constructor->body->init_scope_depth = c->init_scope_depth;
 930         }
 931         while(traits) {
 932             trait_t*trait = traits->trait;
 933             if(trait_is_method(trait) && trait->method->body) {
 934                 abc_method_body_t*body = trait->method->body;
 935                 if(body->init_scope_depth < c->init_scope_depth) {
 936                    body->init_scope_depth = c->init_scope_depth;
 937                 }
 938             }
 939             traits = traits->next;
 940         }
 941     }
 942
 943     for(t=0;t<file->methods->num;t++) {
 944         abc_method_t*m = (abc_method_t*)array_getvalue(file->methods, t);
 945         int n = 0;
 946         multiname_list_t*l = m->parameters;
 947         int num_params = list_length(m->parameters);
 948         swf_SetU30(tag, num_params);
 949         if(m->return_type)
 950             swf_SetU30(tag, pool_register_multiname(pool, m->return_type));
 951         else
 952             swf_SetU30(tag, 0);
 953         int s;
 954         while(l) {
 955             swf_SetU30(tag, pool_register_multiname(pool, l->multiname));
 956             l = l->next;
 957         }
 958         if(m->name) {
 959             swf_SetU30(tag, pool_register_string(pool, m->name));
 960         } else {
 961             swf_SetU30(tag, 0);
 962         }
 963
 964         U8 flags = m->flags&(METHOD_NEED_REST|METHOD_NEED_ARGUMENTS);
 965         if(m->optional_parameters)
 966             flags |= METHOD_HAS_OPTIONAL;
 967         if(m->body) {
 968             flags |= m->body->stats->flags;
 969         }
 970
 971         swf_SetU8(tag, flags);
 972         if(flags&METHOD_HAS_OPTIONAL) {
 973             swf_SetU30(tag, list_length(m->optional_parameters));
 974             constant_list_t*l = m->optional_parameters;
 975             while(l) {
 976                 swf_SetU30(tag, constant_get_index(pool, l->constant));
 977                 swf_SetU8(tag, l->constant->type);
 978                 l = l->next;
 979             }
 980         }
 981     }
 982
 983     /* write metadata */
 984     swf_SetU30(tag, file->metadata->num);
 985     for(t=0;t<file->metadata->num;t++) {
 986         const char*entry_name = array_getkey(file->metadata, t);
 987         swf_SetU30(tag, pool_register_string(pool, entry_name));
 988         array_t*items = (array_t*)array_getvalue(file->metadata, t);
 989         swf_SetU30(tag, items->num);
 990         int s;
 991         for(s=0;s<items->num;s++) {
 992             int i1 = pool_register_string(pool, array_getkey(items, s));
 993             int i2 = pool_register_string(pool, array_getvalue(items, s));
 994             swf_SetU30(tag, i1);
 995             swf_SetU30(tag, i2);
 996         }
 997     }
 998
 999     swf_SetU30(tag, file->classes->num);
1000     for(t=0;t<file->classes->num;t++) {
1001         abc_class_t*c = (abc_class_t*)array_getvalue(file->classes, t);
1002
1003         int classname_index = pool_register_multiname(pool, c->classname);
1004         int superclass_index = pool_register_multiname(pool, c->superclass);
1005
1006         swf_SetU30(tag, classname_index);
1007         swf_SetU30(tag, superclass_index);
1008
1009         swf_SetU8(tag, c->flags); // flags
1010         if(c->flags&0x08) {
1011             int ns_index = pool_register_namespace(pool, c->protectedNS);
1012             swf_SetU30(tag, ns_index);
1013         }
1014
1015         swf_SetU30(tag, list_length(c->interfaces));
1016         multiname_list_t*interface= c->interfaces;
1017         while(interface) {
1018             swf_SetU30(tag, pool_register_multiname(pool, interface->multiname));
1019             interface = interface->next;
1020         }
1021
1022         if(!c->constructor) {
1023             swf_SetU30(tag, nullmethod->index);
1024         } else {
1025             swf_SetU30(tag, c->constructor->index);
1026         }
1027         traits_write(pool, tag, c->traits);
1028     }
1029     for(t=0;t<file->classes->num;t++) {
1030         abc_class_t*c = (abc_class_t*)array_getvalue(file->classes, t);
1031         if(!c->static_constructor) {
1032             swf_SetU30(tag, nullmethod->index);
1033         } else {
1034             swf_SetU30(tag, c->static_constructor->index);
1035         }
1036         traits_write(pool, tag, c->static_constructor_traits);
1037     }
1038
1039     swf_SetU30(tag, file->scripts->num);
1040     for(t=0;t<file->scripts->num;t++) {
1041         abc_script_t*s = (abc_script_t*)array_getvalue(file->scripts, t);
1042         swf_SetU30(tag, s->method->index); //!=t!
1043         traits_write(pool, tag, s->traits);
1044     }
1045
1046     swf_SetU30(tag, file->method_bodies->num);
1047     for(t=0;t<file->method_bodies->num;t++) {
1048         abc_method_body_t*c = (abc_method_body_t*)array_getvalue(file->method_bodies, t);
1049         abc_method_t*m = c->method;
1050         swf_SetU30(tag, m->index);
1051
1052         //swf_SetU30(tag, c->old.max_stack);
1053         //swf_SetU30(tag, c->old.local_count);
1054         //swf_SetU30(tag, c->old.init_scope_depth);
1055         //swf_SetU30(tag, c->old.max_scope_depth);
1056
1057         swf_SetU30(tag, c->stats->max_stack);
1058         if(list_length(c->method->parameters)+1 <= c->stats->local_count)
1059             swf_SetU30(tag, c->stats->local_count);
1060         else
1061             swf_SetU30(tag, list_length(c->method->parameters)+1);
1062         swf_SetU30(tag, c->init_scope_depth);
1063         swf_SetU30(tag, c->stats->max_scope_depth+
1064                         c->init_scope_depth);
1065
1066         code_write(tag, c->code, pool, file);
1067
1068         swf_SetU30(tag, list_length(c->exceptions));
1069         exception_list_t*l = c->exceptions;
1070         while(l) {
1071             // warning: assumes "pos" in each code_t is up-to-date
1072             swf_SetU30(tag, l->exception->from->pos);
1073             swf_SetU30(tag, l->exception->to->pos);
1074             swf_SetU30(tag, l->exception->target->pos);
1075             swf_SetU30(tag, pool_register_multiname(pool, l->exception->exc_type));
1076             swf_SetU30(tag, pool_register_multiname(pool, l->exception->var_name));
1077             l = l->next;
1078         }
1079
1080         traits_write(pool, tag, c->traits);
1081     }
1082
1083     /* free temporary codestat data again. Notice: If we were to write this
1084        file multiple times, this can also be shifted to abc_file_free() */
1085     for(t=0;t<file->method_bodies->num;t++) {
1086         abc_method_body_t*m = (abc_method_body_t*)array_getvalue(file->method_bodies, t);
1087         codestats_free(m->stats);m->stats=0;
1088     }
1089
1090     // --- start to write real tag --
1091
1092     tag = abctag;
1093
1094     if(tag->id == ST_DOABC) {
1095         swf_SetU32(tag, file->flags); // flags
1096         swf_SetString(tag, file->name);
1097     }
1098
1099     swf_SetU16(tag, 0x10); //version
1100     swf_SetU16(tag, 0x2e);
1101
1102     pool_write(pool, tag);
1103
1104     swf_SetBlock(tag, tmp->data, tmp->len);
1105
1106     swf_DeleteTag(0, tmp);
1107     pool_destroy(pool);
1108 }
1109
1110 void abc_file_free(abc_file_t*file)
1111 {
1112     int t;
1113     for(t=0;t<file->metadata->num;t++) {
1114         array_t*items = (array_t*)array_getvalue(file->metadata, t);
1115         int s;
1116         for(s=0;s<items->num;s++) {
1117             free(array_getvalue(items, s));
1118         }
1119         array_free(items);
1120     }
1121     array_free(file->metadata);
1122
1123     for(t=0;t<file->methods->num;t++) {
1124         abc_method_t*m = (abc_method_t*)array_getvalue(file->methods, t);
1125
1126         multiname_list_t*param = m->parameters;
1127         while(param) {
1128             multiname_destroy(param->multiname);param->multiname=0;
1129             param = param->next;
1130         }
1131         list_free(m->parameters);m->parameters=0;
1132
1133         constant_list_t*opt = m->optional_parameters;
1134         while(opt) {
1135             constant_free(opt->constant);opt->constant=0;
1136             opt = opt->next;
1137         }
1138         list_free(m->optional_parameters);m->optional_parameters=0;
1139
1140         if(m->name) {
1141             free((void*)m->name);m->name=0;
1142         }
1143         if(m->return_type) {
1144             multiname_destroy(m->return_type);
1145         }
1146         free(m);
1147     }
1148     array_free(file->methods);
1149
1150     for(t=0;t<file->classes->num;t++) {
1151         abc_class_t*cls = (abc_class_t*)array_getvalue(file->classes, t);
1152         traits_free(cls->traits);cls->traits=0;
1153         traits_free(cls->static_constructor_traits);cls->static_constructor_traits=0;
1154
1155         if(cls->classname) {
1156             multiname_destroy(cls->classname);
1157         }
1158         if(cls->superclass) {
1159             multiname_destroy(cls->superclass);
1160         }
1161
1162         multiname_list_t*i = cls->interfaces;
1163         while(i) {
1164             multiname_destroy(i->multiname);i->multiname=0;
1165             i = i->next;
1166         }
1167         list_free(cls->interfaces);cls->interfaces=0;
1168
1169         if(cls->protectedNS) {
1170             namespace_destroy(cls->protectedNS);
1171         }
1172         free(cls);
1173     }
1174     array_free(file->classes);
1175
1176     for(t=0;t<file->scripts->num;t++) {
1177         abc_script_t*s = (abc_script_t*)array_getvalue(file->scripts, t);
1178         traits_free(s->traits);s->traits=0;
1179         free(s);
1180     }
1181     array_free(file->scripts);
1182
1183     for(t=0;t<file->method_bodies->num;t++) {
1184         abc_method_body_t*body = (abc_method_body_t*)array_getvalue(file->method_bodies, t);
1185         code_free(body->code);body->code=0;
1186         traits_free(body->traits);body->traits=0;
1187
1188         exception_list_t*ee = body->exceptions;
1189         while(ee) {
1190             exception_t*e=ee->exception;ee->exception=0;
1191             e->from = e->to = e->target = 0;
1192             multiname_destroy(e->exc_type);e->exc_type=0;
1193             multiname_destroy(e->var_name);e->var_name=0;
1194             free(e);
1195             ee=ee->next;
1196         }
1197         list_free(body->exceptions);body->exceptions=0;
1198
1199         free(body);
1200     }
1201     array_free(file->method_bodies);
1202
1203     if(file->name) {
1204         free((void*)file->name);file->name=0;
1205     }
1206
1207     free(file);
1208 }
1209
1210 void swf_FreeABC(void*code)
1211 {
1212     abc_file_t*file= (abc_file_t*)code;
1213     abc_file_free(file);
1214 }
1215
1216 void swf_AddButtonLinks(SWF*swf, char stop_each_frame, char events)
1217 {
1218     int num_frames = 0;
1219     int has_buttons = 0;
1220     TAG*tag=swf->firstTag;
1221     while(tag) {
1222         if(tag->id == ST_SHOWFRAME)
1223             num_frames++;
1224         if(tag->id == ST_DEFINEBUTTON || tag->id == ST_DEFINEBUTTON2)
1225             has_buttons = 1;
1226         tag = tag->next;
1227     }
1228
1229     abc_file_t*file = abc_file_new();
1230     abc_method_body_t*c = 0;
1231
1232     abc_class_t*cls = abc_class_new2(file, "rfx::MainTimeline", "flash.display::MovieClip");
1233     abc_class_protectedNS(cls, "rfx:MainTimeline");
1234
1235     TAG*abctag = swf_InsertTagBefore(swf, swf->firstTag, ST_DOABC);
1236
1237     tag = swf_InsertTag(abctag, ST_SYMBOLCLASS);
1238     swf_SetU16(tag, 1);
1239     swf_SetU16(tag, 0);
1240     swf_SetString(tag, "rfx.MainTimeline");
1241
1242     c = abc_class_staticconstructor(cls, 0, 0);
1243     c->old.max_stack = 1;
1244     c->old.local_count = 1;
1245     c->old.init_scope_depth = 9;
1246     c->old.max_scope_depth = 10;
1247
1248     __ getlocal_0(c);
1249     __ pushscope(c);
1250     __ returnvoid(c);
1251
1252     c = abc_class_constructor(cls, 0, 0);
1253     c->old.max_stack = 3;
1254     c->old.local_count = 1;
1255     c->old.init_scope_depth = 10;
1256     c->old.max_scope_depth = 11;
1257
1258     debugfile(c, "constructor.as");
1259
1260     __ getlocal_0(c);
1261     __ pushscope(c);
1262
1263     __ getlocal_0(c);
1264     __ constructsuper(c,0);
1265
1266     __ getlex(c, "[package]flash.system::Security");
1267     __ pushstring(c, "*");
1268     __ callpropvoid(c, "[package]::allowDomain", 1);
1269
1270     if(stop_each_frame || has_buttons) {
1271         int frame = 0;
1272         tag = swf->firstTag;
1273         abc_method_body_t*f = 0; //frame script
1274         while(tag && tag->id!=ST_END) {
1275             char framename[80];
1276             char needs_framescript=0;
1277             char buttonname[80];
1278             char functionname[80];
1279             sprintf(framename, "[packageinternal]rfx::frame%d", frame);
1280
1281             if(!f && (tag->id == ST_DEFINEBUTTON || tag->id == ST_DEFINEBUTTON2 || stop_each_frame)) {
1282                 /* make the contructor add a frame script */
1283                 __ findpropstrict(c,"[package]::addFrameScript");
1284                 __ pushbyte(c,frame);
1285                 __ getlex(c,framename);
1286                 __ callpropvoid(c,"[package]::addFrameScript",2);
1287
1288                 f = abc_class_method(cls, 0, framename, 0);
1289                 f->old.max_stack = 3;
1290                 f->old.local_count = 1;
1291                 f->old.init_scope_depth = 10;
1292                 f->old.max_scope_depth = 11;
1293                 __ debugfile(f, "framescript.as");
1294                 __ debugline(f, 1);
1295                 __ getlocal_0(f);
1296                 __ pushscope(f);
1297             }
1298
1299             if(tag->id == ST_DEFINEBUTTON || tag->id == ST_DEFINEBUTTON2) {
1300                 U16 id = swf_GetDefineID(tag);
1301                 sprintf(buttonname, "::button%d", swf_GetDefineID(tag));
1302                 __ getlex(f,buttonname);
1303                 __ getlex(f,"flash.events::MouseEvent");
1304                 __ getproperty(f, "::CLICK");
1305                 sprintf(functionname, "::clickbutton%d", swf_GetDefineID(tag));
1306                 __ getlex(f,functionname);
1307                 __ callpropvoid(f, "::addEventListener" ,2);
1308
1309                 if(stop_each_frame) {
1310                     __ findpropstrict(f, "[package]::stop");
1311                     __ callpropvoid(f, "[package]::stop", 0);
1312                 }
1313                 needs_framescript = 1;
1314
1315                 abc_method_body_t*h =
1316                     abc_class_method(cls, 0, functionname, 1, "flash.events::MouseEvent");
1317                 h->old.max_stack = 6;
1318                 h->old.local_count = 2;
1319                 h->old.init_scope_depth = 10;
1320                 h->old.max_scope_depth = 11;
1321                 __ getlocal_0(h);
1322                 __ pushscope(h);
1323
1324                 ActionTAG*oldaction = swf_ButtonGetAction(tag);
1325                 if(oldaction && oldaction->op == ACTION__GOTOFRAME) {
1326                     int framenr = GET16(oldaction->data);
1327                     if(framenr>254) {
1328                         fprintf(stderr, "Warning: Couldn't translate jump to frame %d to flash 9 actionscript\n", framenr);
1329                     }
1330                     if(!events) {
1331                         __ findpropstrict(h,"[package]::gotoAndStop");
1332                         __ pushbyte(h,framenr+1);
1333                         __ callpropvoid(h,"[package]::gotoAndStop", 1);
1334                     } else {
1335                         char framename[80];
1336                         sprintf(framename, "frame%d", framenr);
1337                         __ getlocal_0(h); //this
1338                         __ findpropstrict(h, "[package]flash.events::TextEvent");
1339                         __ pushstring(h, "link");
1340                         __ pushtrue(h);
1341                         __ pushtrue(h);
1342                         __ pushstring(h, framename);
1343                         __ constructprop(h,"[package]flash.events::TextEvent", 4);
1344                         __ callpropvoid(h,"[package]::dispatchEvent", 1);
1345                     }
1346                 } else if(oldaction && oldaction->op == ACTION__GETURL) {
1347                     if(!events) {
1348                         __ findpropstrict(h,"flash.net::navigateToURL");
1349                         __ findpropstrict(h,"flash.net::URLRequest");
1350                         // TODO: target _blank
1351                         __ pushstring(h,oldaction->data); //url
1352                         __ constructprop(h,"flash.net::URLRequest", 1);
1353                         __ callpropvoid(h,"flash.net::navigateToURL", 1);
1354                     } else {
1355                         __ getlocal_0(h); //this
1356                         __ findpropstrict(h, "[package]flash.events::TextEvent");
1357                         __ pushstring(h, "link");
1358                         __ pushtrue(h);
1359                         __ pushtrue(h);
1360                         __ pushstring(h,oldaction->data); //url
1361                         __ constructprop(h,"[package]flash.events::TextEvent", 4);
1362                         __ callpropvoid(h,"[package]::dispatchEvent", 1);
1363                     }
1364                 } else if(oldaction) {
1365                     fprintf(stderr, "Warning: Couldn't translate button code of button %d to flash 9 abc action\n", id);
1366                 }
1367                 __ returnvoid(h);
1368                 swf_ActionFree(oldaction);
1369             }
1370             if(tag->id == ST_SHOWFRAME) {
1371                 if(f) {
1372                     __ returnvoid(f);
1373                     f = 0;
1374                 }
1375                 frame++;
1376             }
1377             tag = tag->next;
1378         }
1379         if(f) {
1380             __ returnvoid(f);
1381         }
1382     }
1383     __ returnvoid(c);
1384
1385     tag = swf->firstTag;
1386     while(tag) {
1387         if(tag->id == ST_DEFINEBUTTON || tag->id == ST_DEFINEBUTTON2) {
1388             char buttonname[80];
1389             sprintf(buttonname, "::button%d", swf_GetDefineID(tag));
1390             abc_AddSlot(cls, buttonname, 0, "flash.display::SimpleButton");
1391         }
1392         tag = tag->next;
1393     }
1394
1395
1396     abc_script_t*s = abc_initscript(file, 0, 0);
1397     c = s->method->body;
1398     c->old.max_stack = 2;
1399     c->old.local_count = 1;
1400     c->old.init_scope_depth = 1;
1401     c->old.max_scope_depth = 9;
1402
1403     __ getlocal_0(c);
1404     __ pushscope(c);
1405     __ getscopeobject(c, 0);
1406     __ getlex(c,"::Object");
1407     __ pushscope(c);
1408     __ getlex(c,"flash.events::EventDispatcher");
1409     __ pushscope(c);
1410     __ getlex(c,"flash.display::DisplayObject");
1411     __ pushscope(c);
1412     __ getlex(c,"flash.display::InteractiveObject");
1413     __ pushscope(c);
1414     __ getlex(c,"flash.display::DisplayObjectContainer");
1415     __ pushscope(c);
1416     __ getlex(c,"flash.display::Sprite");
1417     __ pushscope(c);
1418     __ getlex(c,"flash.display::MovieClip");
1419     __ pushscope(c);
1420     __ getlex(c,"flash.display::MovieClip");
1421     __ newclass(c,cls);
1422     __ popscope(c);
1423     __ popscope(c);
1424     __ popscope(c);
1425     __ popscope(c);
1426     __ popscope(c);
1427     __ popscope(c);
1428     __ popscope(c);
1429     __ initproperty(c,"rfx::MainTimeline");
1430     __ returnvoid(c);
1431
1432     //abc_method_body_addClassTrait(c, "rfx:MainTimeline", 1, cls);
1433     multiname_t*classname = multiname_fromstring("rfx::MainTimeline");
1434     abc_initscript_addClassTrait(s, classname, cls);
1435     multiname_destroy(classname);
1436
1437     swf_WriteABC(abctag, file);
1438 }
1439