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