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