Execute.cpp

   1 /* Cycript - The Truly Universal Scripting Language
   2  * Copyright (C) 2009-2016  Jay Freeman (saurik)
   3 */
   4
   5 /* GNU Affero General Public License, Version 3 {{{ */
   6 /*
   7  * This program is free software: you can redistribute it and/or modify
   8  * it under the terms of the GNU Affero General Public License as published by
   9  * the Free Software Foundation, either version 3 of the License, or
  10  * (at your option) any later version.
  11
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU Affero General Public License for more details.
  16
  17  * You should have received a copy of the GNU Affero General Public License
  18  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19 **/
  20 /* }}} */
  21
  22 #include "cycript.hpp"
  23
  24 #include <iostream>
  25 #include <set>
  26 #include <map>
  27 #include <iomanip>
  28 #include <sstream>
  29 #include <cmath>
  30
  31 #include <dlfcn.h>
  32 #include <dirent.h>
  33 #include <fcntl.h>
  34 #include <unistd.h>
  35
  36 #include <sys/mman.h>
  37 #include <sys/stat.h>
  38
  39 #include <sqlite3.h>
  40
  41 #include "sig/parse.hpp"
  42 #include "sig/ffi_type.hpp"
  43
  44 #include "Bridge.hpp"
  45 #include "Code.hpp"
  46 #include "Decode.hpp"
  47 #include "Error.hpp"
  48 #include "Execute.hpp"
  49 #include "Internal.hpp"
  50 #include "JavaScript.hpp"
  51 #include "Pooling.hpp"
  52 #include "String.hpp"
  53
  54 const char *sqlite3_column_string(sqlite3_stmt *stmt, int n) {
  55     return reinterpret_cast<const char *>(sqlite3_column_text(stmt, n));
  56 }
  57
  58 char *sqlite3_column_pooled(CYPool &pool, sqlite3_stmt *stmt, int n) {
  59     if (const char *value = sqlite3_column_string(stmt, n))
  60         return pool.strdup(value);
  61     else return NULL;
  62 }
  63
  64 static std::vector<CYHook *> &GetHooks() {
  65     static std::vector<CYHook *> hooks;
  66     return hooks;
  67 }
  68
  69 CYRegisterHook::CYRegisterHook(CYHook *hook) {
  70     GetHooks().push_back(hook);
  71 }
  72
  73 /* JavaScript Properties {{{ */
  74 bool CYHasProperty(JSContextRef context, JSObjectRef object, JSStringRef name) {
  75     return JSObjectHasProperty(context, object, name);
  76 }
  77
  78 JSValueRef CYGetProperty(JSContextRef context, JSObjectRef object, size_t index) {
  79     return _jsccall(JSObjectGetPropertyAtIndex, context, object, index);
  80 }
  81
  82 JSValueRef CYGetProperty(JSContextRef context, JSObjectRef object, JSStringRef name) {
  83     return _jsccall(JSObjectGetProperty, context, object, name);
  84 }
  85
  86 void CYSetProperty(JSContextRef context, JSObjectRef object, size_t index, JSValueRef value) {
  87     _jsccall(JSObjectSetPropertyAtIndex, context, object, index, value);
  88 }
  89
  90 void CYSetProperty(JSContextRef context, JSObjectRef object, JSStringRef name, JSValueRef value, JSPropertyAttributes attributes) {
  91     _jsccall(JSObjectSetProperty, context, object, name, value, attributes);
  92 }
  93
  94 void CYSetProperty(JSContextRef context, JSObjectRef object, JSStringRef name, JSValueRef (*callback)(JSContextRef, JSObjectRef, JSObjectRef, size_t, const JSValueRef[], JSValueRef *), JSPropertyAttributes attributes) {
  95     CYSetProperty(context, object, name, JSObjectMakeFunctionWithCallback(context, name, callback), attributes);
  96 }
  97
  98 JSObjectRef CYGetPrototype(JSContextRef context, JSObjectRef object) {
  99     return CYCastJSObject(context, JSObjectGetPrototype(context, object));
 100 }
 101
 102 void CYSetPrototype(JSContextRef context, JSObjectRef object, JSValueRef value) {
 103     _assert(!JSValueIsUndefined(context, value));
 104     JSObjectSetPrototype(context, object, value);
 105     _assert(CYIsStrictEqual(context, JSObjectGetPrototype(context, object), value));
 106 }
 107 /* }}} */
 108 /* JavaScript Strings {{{ */
 109 JSStringRef CYCopyJSString(const char *value) {
 110     return value == NULL ? NULL : JSStringCreateWithUTF8CString(value);
 111 }
 112
 113 JSStringRef CYCopyJSString(JSStringRef value) {
 114     return value == NULL ? NULL : JSStringRetain(value);
 115 }
 116
 117 JSStringRef CYCopyJSString(CYUTF8String value) {
 118     if (memchr(value.data, '\0', value.size) != NULL) {
 119         CYPool pool;
 120         return CYCopyJSString(CYPoolUTF16String(pool, value));
 121     } else if (value.data[value.size] != '\0') {
 122         CYPool pool;
 123         return CYCopyJSString(pool.strmemdup(value.data, value.size));
 124     } else {
 125         return CYCopyJSString(value.data);
 126     }
 127 }
 128
 129 JSStringRef CYCopyJSString(const std::string &value) {
 130     return CYCopyJSString(CYUTF8String(value.c_str(), value.size()));
 131 }
 132
 133 JSStringRef CYCopyJSString(CYUTF16String value) {
 134     return JSStringCreateWithCharacters(value.data, value.size);
 135 }
 136
 137 JSStringRef CYCopyJSString(JSContextRef context, JSValueRef value) {
 138     if (JSValueIsNull(context, value))
 139         return NULL;
 140     return _jsccall(JSValueToStringCopy, context, value);
 141 }
 142
 143 CYUTF16String CYCastUTF16String(JSStringRef value) {
 144     return CYUTF16String(JSStringGetCharactersPtr(value), JSStringGetLength(value));
 145 }
 146
 147 const char *CYPoolCString(CYPool &pool, CYUTF8String utf8) {
 148     return pool.strndup(utf8.data, utf8.size);
 149 }
 150
 151 CYUTF8String CYPoolUTF8String(CYPool &pool, JSContextRef context, JSStringRef value) {
 152     return CYPoolUTF8String(pool, CYCastUTF16String(value));
 153 }
 154
 155 const char *CYPoolCString(CYPool &pool, JSContextRef context, JSStringRef value) {
 156     CYUTF8String utf8(CYPoolUTF8String(pool, context, value));
 157     _assert(memchr(utf8.data, '\0', utf8.size) == NULL);
 158     return utf8.data;
 159 }
 160
 161 const char *CYPoolCString(CYPool &pool, JSContextRef context, JSValueRef value) {
 162     return JSValueIsNull(context, value) ? NULL : CYPoolCString(pool, context, CYJSString(context, value));
 163 }
 164 /* }}} */
 165 /* Index Offsets {{{ */
 166 size_t CYGetIndex(CYPool &pool, JSContextRef context, JSStringRef value) {
 167     return CYGetIndex(CYPoolUTF8String(pool, context, value));
 168 }
 169 /* }}} */
 170
 171 static JSObjectRef (*JSObjectMakeArray$)(JSContextRef, size_t, const JSValueRef[], JSValueRef *);
 172
 173 JSObjectRef CYObjectMakeArray(JSContextRef context, size_t length, const JSValueRef values[]) {
 174     if (JSObjectMakeArray$ != NULL)
 175         return _jsccall(*JSObjectMakeArray$, context, length, values);
 176     else {
 177         JSObjectRef Array(CYGetCachedObject(context, CYJSString("Array")));
 178         JSValueRef value(CYCallAsFunction(context, Array, NULL, length, values));
 179         return CYCastJSObject(context, value);
 180     }
 181 }
 182
 183 static JSClassRef All_;
 184 JSClassRef Functor_;
 185 static JSClassRef Global_;
 186
 187 JSStringRef Array_s;
 188 JSStringRef constructor_s;
 189 JSStringRef cy_s;
 190 JSStringRef cyi_s;
 191 JSStringRef cyt_s;
 192 JSStringRef length_s;
 193 JSStringRef message_s;
 194 JSStringRef name_s;
 195 JSStringRef pop_s;
 196 JSStringRef prototype_s;
 197 JSStringRef push_s;
 198 JSStringRef splice_s;
 199 JSStringRef toCYON_s;
 200 JSStringRef toJSON_s;
 201 JSStringRef toPointer_s;
 202 JSStringRef toString_s;
 203 JSStringRef weak_s;
 204
 205 static sqlite3 *database_;
 206
 207 static JSStringRef Result_;
 208
 209 void CYFinalize(JSObjectRef object) {
 210     CYData *internal(reinterpret_cast<CYData *>(JSObjectGetPrivate(object)));
 211     _assert(internal->count_ != _not(unsigned));
 212     if (--internal->count_ == 0)
 213         delete internal;
 214 }
 215
 216 sig::Type *Structor_(CYPool &pool, sig::Aggregate *aggregate) {
 217     //_assert(false);
 218     return aggregate;
 219 }
 220
 221 struct Context :
 222     CYPrivate<Context>
 223 {
 224     JSGlobalContextRef context_;
 225
 226     Context(JSGlobalContextRef context) :
 227         context_(context)
 228     {
 229     }
 230 };
 231
 232 struct CArray :
 233     CYValue<CArray, void *>
 234 {
 235     CYProtect owner_;
 236     Type_privateData *type_;
 237     size_t length_;
 238
 239     CArray(void *value, size_t length, const sig::Type &type, ffi_type *ffi, JSContextRef context, JSObjectRef owner) :
 240         CYValue(value),
 241         owner_(context, owner),
 242         type_(new(*pool_) Type_privateData(type, ffi)),
 243         length_(length)
 244     {
 245         if (owner == NULL) {
 246             size_t size(ffi->size * length);
 247             void *copy(pool_->malloc<void>(size, ffi->alignment));
 248             memcpy(copy, value_, size);
 249             value_ = copy;
 250         }
 251     }
 252 };
 253
 254 struct CString :
 255     CYValue<CString, char *>
 256 {
 257     CYProtect owner_;
 258
 259     CString(char *value, JSContextRef context, JSObjectRef owner) :
 260         CYValue(value),
 261         owner_(context, owner)
 262     {
 263         if (owner == NULL)
 264             value_ = pool_->strdup(value_);
 265     }
 266 };
 267
 268 struct Pointer :
 269     CYValue<Pointer, void *>
 270 {
 271     CYProtect owner_;
 272     Type_privateData *type_;
 273
 274     Pointer(void *value, const sig::Type &type, JSContextRef context, JSObjectRef owner) :
 275         CYValue(value),
 276         owner_(context, owner),
 277         type_(new(*pool_) Type_privateData(type))
 278     {
 279     }
 280
 281     Pointer(void *value, const char *encoding, JSContextRef context, JSObjectRef owner) :
 282         CYValue(value),
 283         owner_(context, owner),
 284         type_(new(*pool_) Type_privateData(encoding))
 285     {
 286     }
 287 };
 288
 289 struct Struct_privateData :
 290     CYValue<Struct_privateData, void *>
 291 {
 292     CYProtect owner_;
 293     Type_privateData *type_;
 294
 295     Struct_privateData(void *value, const sig::Type &type, ffi_type *ffi, JSContextRef context, JSObjectRef owner) :
 296         CYValue(value),
 297         owner_(context, owner),
 298         type_(new(*pool_) Type_privateData(type, ffi))
 299     {
 300         if (owner == NULL) {
 301             size_t size(ffi->size);
 302             void *copy(pool_->malloc<void>(size, ffi->alignment));
 303             memcpy(copy, value_, size);
 304             value_ = copy;
 305         }
 306     }
 307 };
 308
 309 static void *CYCastSymbol(const char *name) {
 310     for (CYHook *hook : GetHooks())
 311         if (hook->CastSymbol != NULL)
 312             if (void *value = (*hook->CastSymbol)(name))
 313                 return value;
 314     return dlsym(RTLD_DEFAULT, name);
 315 }
 316
 317 JSValueRef CYCastJSValue(JSContextRef context, bool value) {
 318     return JSValueMakeBoolean(context, value);
 319 }
 320
 321 JSValueRef CYCastJSValue(JSContextRef context, double value) {
 322     return JSValueMakeNumber(context, value);
 323 }
 324
 325 #define CYCastJSValue_(Type_) \
 326     JSValueRef CYCastJSValue(JSContextRef context, Type_ value) { \
 327         _assert(static_cast<Type_>(static_cast<double>(value)) == value); \
 328         return JSValueMakeNumber(context, static_cast<double>(value)); \
 329     }
 330
 331 CYCastJSValue_(signed short int)
 332 CYCastJSValue_(unsigned short int)
 333 CYCastJSValue_(signed int)
 334 CYCastJSValue_(unsigned int)
 335 CYCastJSValue_(signed long int)
 336 CYCastJSValue_(unsigned long int)
 337 CYCastJSValue_(signed long long int)
 338 CYCastJSValue_(unsigned long long int)
 339
 340 #ifdef __SIZEOF_INT128__
 341 CYCastJSValue_(signed __int128)
 342 CYCastJSValue_(unsigned __int128)
 343 #endif
 344
 345 JSValueRef CYJSUndefined(JSContextRef context) {
 346     return JSValueMakeUndefined(context);
 347 }
 348
 349 double CYCastDouble(JSContextRef context, JSValueRef value) {
 350     return _jsccall(JSValueToNumber, context, value);
 351 }
 352
 353 bool CYCastBool(JSContextRef context, JSValueRef value) {
 354     return JSValueToBoolean(context, value);
 355 }
 356
 357 JSValueRef CYJSNull(JSContextRef context) {
 358     return JSValueMakeNull(context);
 359 }
 360
 361 JSValueRef CYCastJSValue(JSContextRef context, JSStringRef value) {
 362     return value == NULL ? CYJSNull(context) : JSValueMakeString(context, value);
 363 }
 364
 365 JSValueRef CYCastJSValue(JSContextRef context, const char *value) {
 366     return CYCastJSValue(context, CYJSString(value));
 367 }
 368
 369 JSObjectRef CYCastJSObject(JSContextRef context, JSValueRef value) {
 370     return _jsccall(JSValueToObject, context, value);
 371 }
 372
 373 JSValueRef CYCallAsFunction(JSContextRef context, JSObjectRef function, JSObjectRef _this, size_t count, const JSValueRef arguments[]) {
 374     return _jsccall(JSObjectCallAsFunction, context, function, _this, count, arguments);
 375 }
 376
 377 bool CYIsCallable(JSContextRef context, JSValueRef value) {
 378     return value != NULL && JSValueIsObject(context, value) && JSObjectIsFunction(context, (JSObjectRef) value);
 379 }
 380
 381 bool CYIsEqual(JSContextRef context, JSValueRef lhs, JSValueRef rhs) {
 382     return _jsccall(JSValueIsEqual, context, lhs, rhs);
 383 }
 384
 385 bool CYIsStrictEqual(JSContextRef context, JSValueRef lhs, JSValueRef rhs) {
 386     return JSValueIsStrictEqual(context, lhs, rhs);
 387 }
 388
 389 size_t CYArrayLength(JSContextRef context, JSObjectRef array) {
 390     return CYCastDouble(context, CYGetProperty(context, array, length_s));
 391 }
 392
 393 JSValueRef CYArrayGet(JSContextRef context, JSObjectRef array, size_t index) {
 394     return _jsccall(JSObjectGetPropertyAtIndex, context, array, index);
 395 }
 396
 397 void CYArrayPush(JSContextRef context, JSObjectRef array, size_t length, const JSValueRef arguments[]) {
 398     JSObjectRef Array(CYGetCachedObject(context, CYJSString("Array_prototype")));
 399     _jsccall(JSObjectCallAsFunction, context, CYCastJSObject(context, CYGetProperty(context, Array, push_s)), array, length, arguments);
 400 }
 401
 402 void CYArrayPush(JSContextRef context, JSObjectRef array, JSValueRef value) {
 403     return CYArrayPush(context, array, 1, &value);
 404 }
 405
 406 static JSValueRef System_print(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
 407     FILE *file(stdout);
 408
 409     if (count == 0)
 410         fputc('\n', file);
 411     else {
 412         CYPool pool;
 413         CYUTF8String string(CYPoolUTF8String(pool, context, CYJSString(context, arguments[0])));
 414         fwrite(string.data, string.size, 1, file);
 415     }
 416
 417     fflush(file);
 418     return CYJSUndefined(context);
 419 } CYCatch(NULL) }
 420
 421 static void (*JSSynchronousGarbageCollectForDebugging$)(JSContextRef);
 422
 423 _visible void CYGarbageCollect(JSContextRef context) {
 424     (JSSynchronousGarbageCollectForDebugging$ ?: &JSGarbageCollect)(context);
 425 }
 426
 427 static JSValueRef Cycript_compile_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
 428     CYPool pool;
 429     CYUTF8String before(CYPoolUTF8String(pool, context, CYJSString(context, arguments[0])));
 430     CYUTF8String after(CYPoolCode(pool, before));
 431     return CYCastJSValue(context, CYJSString(after));
 432 } CYCatch_(NULL, "SyntaxError") }
 433
 434 static JSValueRef Cycript_gc_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
 435     CYGarbageCollect(context);
 436     return CYJSUndefined(context);
 437 } CYCatch(NULL) }
 438
 439 const char *CYPoolCCYON(CYPool &pool, JSContextRef context, JSValueRef value, std::set<void *> &objects, JSValueRef *exception) { CYTry {
 440     switch (JSType type = JSValueGetType(context, value)) {
 441         case kJSTypeUndefined:
 442             return "undefined";
 443         case kJSTypeNull:
 444             return "null";
 445         case kJSTypeBoolean:
 446             return CYCastBool(context, value) ? "true" : "false";
 447
 448         case kJSTypeNumber: {
 449             std::ostringstream str;
 450             CYNumerify(str, CYCastDouble(context, value));
 451             std::string value(str.str());
 452             return pool.strmemdup(value.c_str(), value.size());
 453         } break;
 454
 455         case kJSTypeString: {
 456             std::ostringstream str;
 457             CYUTF8String string(CYPoolUTF8String(pool, context, CYJSString(context, value)));
 458             CYStringify(str, string.data, string.size);
 459             std::string value(str.str());
 460             return pool.strmemdup(value.c_str(), value.size());
 461         } break;
 462
 463         case kJSTypeObject:
 464             return CYPoolCCYON(pool, context, (JSObjectRef) value, objects);
 465         default:
 466             throw CYJSError(context, "JSValueGetType() == 0x%x", type);
 467     }
 468 } CYCatch(NULL) }
 469
 470 const char *CYPoolCCYON(CYPool &pool, JSContextRef context, JSValueRef value, std::set<void *> &objects) {
 471     return _jsccall(CYPoolCCYON, pool, context, value, objects);
 472 }
 473
 474 const char *CYPoolCCYON(CYPool &pool, JSContextRef context, JSValueRef value, std::set<void *> *objects) {
 475     if (objects != NULL)
 476         return CYPoolCCYON(pool, context, value, *objects);
 477     else {
 478         std::set<void *> objects;
 479         return CYPoolCCYON(pool, context, value, objects);
 480     }
 481 }
 482
 483 const char *CYPoolCCYON(CYPool &pool, JSContextRef context, JSObjectRef object, std::set<void *> &objects) {
 484     JSValueRef toCYON(CYGetProperty(context, object, toCYON_s));
 485     if (CYIsCallable(context, toCYON)) {
 486         // XXX: this needs to be abstracted behind some kind of function
 487         JSValueRef arguments[1] = {CYCastJSValue(context, reinterpret_cast<uintptr_t>(&objects))};
 488         JSValueRef value(CYCallAsFunction(context, (JSObjectRef) toCYON, object, 1, arguments));
 489         _assert(value != NULL);
 490         return CYPoolCString(pool, context, value);
 491     }
 492
 493     JSValueRef toJSON(CYGetProperty(context, object, toJSON_s));
 494     if (CYIsCallable(context, toJSON)) {
 495         JSValueRef arguments[1] = {CYCastJSValue(context, CYJSString(""))};
 496         return _jsccall(CYPoolCCYON, pool, context, CYCallAsFunction(context, (JSObjectRef) toJSON, object, 1, arguments), objects);
 497     }
 498
 499     if (JSObjectIsFunction(context, object)) {
 500         JSValueRef toString(CYGetProperty(context, object, toString_s));
 501         if (CYIsCallable(context, toString)) {
 502             JSValueRef arguments[1] = {CYCastJSValue(context, CYJSString(""))};
 503             JSValueRef value(CYCallAsFunction(context, (JSObjectRef) toString, object, 1, arguments));
 504             _assert(value != NULL);
 505             return CYPoolCString(pool, context, value);
 506         }
 507     }
 508
 509     _assert(objects.insert(object).second);
 510
 511     std::ostringstream str;
 512
 513     JSValueRef value(CYGetProperty(context, object, constructor_s));
 514     if (JSValueIsObject(context, value)) {
 515         JSObjectRef constructor(CYCastJSObject(context, value));
 516         JSValueRef theory(CYGetProperty(context, constructor, prototype_s));
 517         JSValueRef practice(JSObjectGetPrototype(context, object));
 518
 519         if (CYIsStrictEqual(context, theory, practice)) {
 520             JSValueRef name(CYGetProperty(context, constructor, name_s));
 521             if (!JSValueIsUndefined(context, name)) {
 522                 auto utf8(CYPoolUTF8String(pool, context, CYJSString(context, name)));
 523                 if (utf8 != "Object")
 524                     str << "new" << ' ' << utf8;
 525             }
 526         }
 527     }
 528
 529     str << '{';
 530
 531     // XXX: this is, sadly, going to leak
 532     JSPropertyNameArrayRef names(JSObjectCopyPropertyNames(context, object));
 533
 534     bool comma(false);
 535
 536     for (size_t index(0), count(JSPropertyNameArrayGetCount(names)); index != count; ++index) {
 537         if (comma)
 538             str << ',';
 539         else
 540             comma = true;
 541
 542         JSStringRef name(JSPropertyNameArrayGetNameAtIndex(names, index));
 543         CYUTF8String string(CYPoolUTF8String(pool, context, name));
 544
 545         if (CYIsKey(string))
 546             str << string.data;
 547         else
 548             CYStringify(str, string.data, string.size);
 549
 550         str << ':';
 551
 552         try {
 553             JSValueRef value(CYGetProperty(context, object, name));
 554             str << CYPoolCCYON(pool, context, value, objects);
 555         } catch (const CYException &error) {
 556             str << "@error";
 557         }
 558     }
 559
 560     JSPropertyNameArrayRelease(names);
 561
 562     str << '}';
 563
 564     std::string string(str.str());
 565     return pool.strmemdup(string.c_str(), string.size());
 566 }
 567
 568 std::set<void *> *CYCastObjects(JSContextRef context, JSObjectRef _this, size_t count, const JSValueRef arguments[]) {
 569     if (count == 0)
 570         return NULL;
 571     return CYCastPointer<std::set<void *> *>(context, arguments[0]);
 572 }
 573
 574 static JSValueRef Array_callAsFunction_toCYON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
 575     std::set<void *> *objects(CYCastObjects(context, _this, count, arguments));
 576     // XXX: this is horribly inefficient
 577     std::set<void *> backup;
 578     if (objects == NULL)
 579         objects = &backup;
 580
 581     CYPool pool;
 582     std::ostringstream str;
 583
 584     str << '[';
 585
 586     JSValueRef length(CYGetProperty(context, _this, length_s));
 587     bool comma(false);
 588
 589     for (size_t index(0), count(CYCastDouble(context, length)); index != count; ++index) {
 590         if (comma)
 591             str << ',';
 592         else
 593             comma = true;
 594
 595         try {
 596             JSValueRef value(CYGetProperty(context, _this, index));
 597             if (!JSValueIsUndefined(context, value))
 598                 str << CYPoolCCYON(pool, context, value, *objects);
 599             else {
 600                 str << ',';
 601                 comma = false;
 602             }
 603         } catch (const CYException &error) {
 604             str << "@error";
 605         }
 606     }
 607
 608     str << ']';
 609
 610     std::string value(str.str());
 611     return CYCastJSValue(context, CYJSString(CYUTF8String(value.c_str(), value.size())));
 612 } CYCatch(NULL) }
 613
 614 static JSValueRef String_callAsFunction_toCYON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
 615     CYPool pool;
 616     std::ostringstream str;
 617
 618     CYUTF8String string(CYPoolUTF8String(pool, context, CYJSString(context, _this)));
 619     CYStringify(str, string.data, string.size);
 620
 621     std::string value(str.str());
 622     return CYCastJSValue(context, CYJSString(CYUTF8String(value.c_str(), value.size())));
 623 } CYCatch(NULL) }
 624
 625 JSObjectRef CYMakePointer(JSContextRef context, void *pointer, const sig::Type &type, ffi_type *ffi, JSObjectRef owner) {
 626     return Pointer::Make(context, pointer, type, context, owner);
 627 }
 628
 629 static JSObjectRef CYMakeFunctor(JSContextRef context, void (*function)(), bool variadic, const sig::Signature &signature) {
 630     return JSObjectMake(context, Functor_, new cy::Functor(function, variadic, signature));
 631 }
 632
 633 static JSObjectRef CYMakeFunctor(JSContextRef context, const char *symbol, const char *encoding) {
 634     void (*function)()(reinterpret_cast<void (*)()>(CYCastSymbol(symbol)));
 635     if (function == NULL)
 636         return NULL;
 637
 638     cy::Functor *internal(new cy::Functor(function, encoding));
 639     ++internal->count_;
 640     return JSObjectMake(context, Functor_, internal);
 641 }
 642
 643 bool CYGetOffset(CYPool &pool, JSContextRef context, JSStringRef value, ssize_t &index) {
 644     return CYGetOffset(CYPoolCString(pool, context, value), index);
 645 }
 646
 647 void *CYCastPointer_(JSContextRef context, JSValueRef value, bool *guess) {
 648     if (value == NULL)
 649         return NULL;
 650     else switch (JSValueGetType(context, value)) {
 651         case kJSTypeNull:
 652             return NULL;
 653         case kJSTypeObject: {
 654             JSObjectRef object((JSObjectRef) value);
 655             if (JSValueIsObjectOfClass(context, value, Pointer::Class_)) {
 656                 Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(object)));
 657                 return internal->value_;
 658             }
 659             JSValueRef toPointer(CYGetProperty(context, object, toPointer_s));
 660             if (CYIsCallable(context, toPointer)) {
 661                 JSValueRef value(CYCallAsFunction(context, (JSObjectRef) toPointer, object, 0, NULL));
 662                 _assert(value != NULL);
 663                 return CYCastPointer_(context, value, guess);
 664             }
 665         } default:
 666             if (guess != NULL)
 667                 *guess = true;
 668         case kJSTypeNumber:
 669             double number(CYCastDouble(context, value));
 670             if (!std::isnan(number))
 671                 return reinterpret_cast<void *>(static_cast<uintptr_t>(static_cast<long long>(number)));
 672             if (guess == NULL)
 673                 throw CYJSError(context, "cannot convert value to pointer");
 674             else {
 675                 *guess = true;
 676                 return NULL;
 677             }
 678     }
 679 }
 680
 681 namespace sig {
 682
 683 // XXX: this is somehow not quite a template :/
 684
 685 template <>
 686 void Primitive<bool>::PoolFFI(CYPool *pool, JSContextRef context, ffi_type *ffi, void *data, JSValueRef value) const {
 687     *reinterpret_cast<bool *>(data) = JSValueToBoolean(context, value);
 688 }
 689
 690 #define CYPoolFFI_(Type_) \
 691 template <> \
 692 void Primitive<Type_>::PoolFFI(CYPool *pool, JSContextRef context, ffi_type *ffi, void *data, JSValueRef value) const { \
 693     *reinterpret_cast<Type_ *>(data) = CYCastDouble(context, value); \
 694 }
 695
 696 CYPoolFFI_(char)
 697 CYPoolFFI_(double)
 698 CYPoolFFI_(float)
 699 CYPoolFFI_(signed char)
 700 CYPoolFFI_(signed int)
 701 CYPoolFFI_(signed long int)
 702 CYPoolFFI_(signed long long int)
 703 CYPoolFFI_(signed short int)
 704 CYPoolFFI_(unsigned char)
 705 CYPoolFFI_(unsigned int)
 706 CYPoolFFI_(unsigned long int)
 707 CYPoolFFI_(unsigned long long int)
 708 CYPoolFFI_(unsigned short int)
 709
 710 #ifdef __SIZEOF_INT128__
 711 CYPoolFFI_(signed __int128)
 712 CYPoolFFI_(unsigned __int128)
 713 #endif
 714
 715 void Void::PoolFFI(CYPool *pool, JSContextRef context, ffi_type *ffi, void *data, JSValueRef value) const {
 716     _assert(false);
 717 }
 718
 719 void Unknown::PoolFFI(CYPool *pool, JSContextRef context, ffi_type *ffi, void *data, JSValueRef value) const {
 720     _assert(false);
 721 }
 722
 723 void String::PoolFFI(CYPool *pool, JSContextRef context, ffi_type *ffi, void *data, JSValueRef value) const {
 724     bool guess(false);
 725     *reinterpret_cast<const char **>(data) = CYCastPointer<const char *>(context, value, &guess);
 726     if (guess && pool != NULL)
 727         *reinterpret_cast<const char **>(data) = CYPoolCString(*pool, context, value);
 728 }
 729
 730 void Bits::PoolFFI(CYPool *pool, JSContextRef context, ffi_type *ffi, void *data, JSValueRef value) const {
 731     _assert(false);
 732 }
 733
 734 static void CYArrayCopy(CYPool *pool, JSContextRef context, uint8_t *base, size_t length, const sig::Type &type, ffi_type *ffi, JSValueRef value, JSObjectRef object) {
 735     for (size_t index(0); index != length; ++index) {
 736         JSValueRef rhs;
 737         if (object == NULL)
 738             rhs = value;
 739         else {
 740             rhs = CYGetProperty(context, object, index);
 741             if (JSValueIsUndefined(context, rhs))
 742                 throw CYJSError(context, "unable to extract array value");
 743         }
 744
 745         type.PoolFFI(pool, context, ffi, base, rhs);
 746         base += ffi->size;
 747     }
 748 }
 749
 750 void Pointer::PoolFFI(CYPool *pool, JSContextRef context, ffi_type *ffi, void *data, JSValueRef value) const {
 751     bool guess(false);
 752     *reinterpret_cast<void **>(data) = CYCastPointer<void *>(context, value, &guess);
 753     if (!guess || pool == NULL || !JSValueIsObject(context, value))
 754         return;
 755     JSObjectRef object(CYCastJSObject(context, value));
 756     if (CYHasProperty(context, object, length_s)) {
 757         size_t length(CYArrayLength(context, object));
 758         ffi_type *element(type.GetFFI(*pool));
 759         size_t size(element->size * length);
 760         uint8_t *base(pool->malloc<uint8_t>(size, element->alignment));
 761         CYArrayCopy(pool, context, base, length, type, element, value, object);
 762         *reinterpret_cast<void **>(data) = base;
 763     }
 764 }
 765
 766 void Array::PoolFFI(CYPool *pool, JSContextRef context, ffi_type *ffi, void *data, JSValueRef value) const {
 767     if (size == 0)
 768         return;
 769     uint8_t *base(reinterpret_cast<uint8_t *>(data));
 770     JSObjectRef object(JSValueIsObject(context, value) ? (JSObjectRef) value : NULL);
 771     CYArrayCopy(pool, context, base, size, type, ffi->elements[0], value, object);
 772 }
 773
 774 void Aggregate::PoolFFI(CYPool *pool, JSContextRef context, ffi_type *ffi, void *data, JSValueRef value) const {
 775     _assert(!overlap);
 776
 777     size_t offset(0);
 778     uint8_t *base(reinterpret_cast<uint8_t *>(data));
 779     JSObjectRef aggregate(JSValueIsObject(context, value) ? (JSObjectRef) value : NULL);
 780     for (size_t index(0); index != signature.count; ++index) {
 781         sig::Element *element(&signature.elements[index]);
 782         ffi_type *field(ffi->elements[index]);
 783
 784         JSValueRef rhs;
 785         if (aggregate == NULL)
 786             rhs = value;
 787         else {
 788             rhs = CYGetProperty(context, aggregate, index);
 789             if (JSValueIsUndefined(context, rhs)) {
 790                 if (element->name != NULL)
 791                     rhs = CYGetProperty(context, aggregate, CYJSString(element->name));
 792                 else
 793                     goto undefined;
 794                 if (JSValueIsUndefined(context, rhs)) undefined:
 795                     throw CYJSError(context, "unable to extract structure value");
 796             }
 797         }
 798
 799         element->type->PoolFFI(pool, context, field, base + offset, rhs);
 800         offset += field->size;
 801         CYAlign(offset, field->alignment);
 802     }
 803 }
 804
 805 void Function::PoolFFI(CYPool *pool, JSContextRef context, ffi_type *ffi, void *data, JSValueRef value) const {
 806     _assert(false);
 807 }
 808
 809 #define CYFromFFI_(Type_) \
 810 template <> \
 811 JSValueRef Primitive<Type_>::FromFFI(JSContextRef context, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) const { \
 812     return CYCastJSValue(context, *reinterpret_cast<Type_ *>(data)); \
 813 }
 814
 815 CYFromFFI_(bool)
 816 CYFromFFI_(char)
 817 CYFromFFI_(double)
 818 CYFromFFI_(float)
 819 CYFromFFI_(signed char)
 820 CYFromFFI_(signed int)
 821 CYFromFFI_(signed long int)
 822 CYFromFFI_(signed long long int)
 823 CYFromFFI_(signed short int)
 824 CYFromFFI_(unsigned char)
 825 CYFromFFI_(unsigned int)
 826 CYFromFFI_(unsigned long int)
 827 CYFromFFI_(unsigned long long int)
 828 CYFromFFI_(unsigned short int)
 829
 830 #ifdef __SIZEOF_INT128__
 831 CYFromFFI_(signed __int128)
 832 CYFromFFI_(unsigned __int128)
 833 #endif
 834
 835 JSValueRef Void::FromFFI(JSContextRef context, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) const {
 836     return CYJSUndefined(context);
 837 }
 838
 839 JSValueRef Unknown::FromFFI(JSContextRef context, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) const {
 840     _assert(false);
 841 }
 842
 843 JSValueRef String::FromFFI(JSContextRef context, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) const {
 844     if (char *value = *reinterpret_cast<char **>(data))
 845         return CString::Make(context, value, context, owner);
 846     return CYJSNull(context);
 847 }
 848
 849 JSValueRef Bits::FromFFI(JSContextRef context, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) const {
 850     _assert(false);
 851 }
 852
 853 JSValueRef Pointer::FromFFI(JSContextRef context, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) const {
 854     if (void *value = *reinterpret_cast<void **>(data))
 855         return CYMakePointer(context, value, type, NULL, owner);
 856     return CYJSNull(context);
 857 }
 858
 859 JSValueRef Array::FromFFI(JSContextRef context, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) const {
 860     return CArray::Make(context, data, size, type, ffi->elements[0], context, owner);
 861 }
 862
 863 JSValueRef Aggregate::FromFFI(JSContextRef context, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) const {
 864     return Struct_privateData::Make(context, data, *this, ffi, context, owner);
 865 }
 866
 867 JSValueRef Function::FromFFI(JSContextRef context, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) const {
 868     return CYMakeFunctor(context, reinterpret_cast<void (*)()>(data), variadic, signature);
 869 }
 870
 871 }
 872
 873 void CYExecuteClosure(ffi_cif *cif, void *result, void **arguments, void *arg) {
 874     Closure_privateData *internal(reinterpret_cast<Closure_privateData *>(arg));
 875
 876     JSContextRef context(internal->function_);
 877
 878     size_t count(internal->cif_.nargs);
 879     JSValueRef values[count];
 880
 881     for (size_t index(0); index != count; ++index)
 882         values[index] = internal->signature_.elements[1 + index].type->FromFFI(context, internal->cif_.arg_types[index], arguments[index]);
 883
 884     JSValueRef value(internal->adapter_(context, count, values, internal->function_));
 885     if (internal->cif_.rtype != &ffi_type_void)
 886         internal->signature_.elements[0].type->PoolFFI(NULL, context, internal->cif_.rtype, result, value);
 887 }
 888
 889 static JSValueRef FunctionAdapter_(JSContextRef context, size_t count, JSValueRef values[], JSObjectRef function) {
 890     return CYCallAsFunction(context, function, NULL, count, values);
 891 }
 892
 893 #if defined(__APPLE__) && (defined(__arm__) || defined(__arm64__))
 894 static void CYFreeFunctor(void *data) {
 895     ffi_closure_free(data);
 896 }
 897 #else
 898 static void CYFreeFunctor(void *data) {
 899     _syscall(munmap(data, sizeof(ffi_closure)));
 900 }
 901 #endif
 902
 903 Closure_privateData *CYMakeFunctor_(JSContextRef context, JSObjectRef function, const sig::Signature &signature, JSValueRef (*adapter)(JSContextRef, size_t, JSValueRef[], JSObjectRef)) {
 904     // XXX: in case of exceptions this will leak
 905     Closure_privateData *internal(new Closure_privateData(context, function, adapter, signature));
 906
 907 #if defined(__APPLE__) && (defined(__arm__) || defined(__arm64__))
 908     void *executable;
 909     ffi_closure *writable(reinterpret_cast<ffi_closure *>(ffi_closure_alloc(sizeof(ffi_closure), &executable)));
 910
 911     ffi_status status(ffi_prep_closure_loc(writable, &internal->cif_, &CYExecuteClosure, internal, executable));
 912     _assert(status == FFI_OK);
 913
 914     internal->pool_->atexit(&CYFreeFunctor, writable);
 915     internal->value_ = reinterpret_cast<void (*)()>(executable);
 916 #else
 917     ffi_closure *closure((ffi_closure *) _syscall(mmap(
 918         NULL, sizeof(ffi_closure),
 919         PROT_READ | PROT_WRITE, MAP_ANON | MAP_PRIVATE,
 920         -1, 0
 921     )));
 922
 923     ffi_status status(ffi_prep_closure(closure, &internal->cif_, &CYExecuteClosure, internal));
 924     _assert(status == FFI_OK);
 925
 926     _syscall(mprotect(closure, sizeof(*closure), PROT_READ | PROT_EXEC));
 927
 928     internal->pool_->atexit(&CYFreeFunctor, closure);
 929     internal->value_ = reinterpret_cast<void (*)()>(closure);
 930 #endif
 931
 932     return internal;
 933 }
 934
 935 static JSObjectRef CYMakeFunctor(JSContextRef context, JSObjectRef function, const sig::Signature &signature) {
 936     Closure_privateData *internal(CYMakeFunctor_(context, function, signature, &FunctionAdapter_));
 937     JSObjectRef object(JSObjectMake(context, Functor_, internal));
 938     // XXX: see above notes about needing to leak
 939     JSValueProtect(CYGetJSContext(context), object);
 940     return object;
 941 }
 942
 943 JSValueRef CYGetCachedValue(JSContextRef context, JSStringRef name) {
 944     return CYGetProperty(context, CYCastJSObject(context, CYGetProperty(context, CYGetGlobalObject(context), cy_s)), name);
 945 }
 946
 947 JSObjectRef CYGetCachedObject(JSContextRef context, JSStringRef name) {
 948     return CYCastJSObject(context, CYGetCachedValue(context, name));
 949 }
 950
 951 static JSObjectRef CYMakeFunctor(JSContextRef context, JSValueRef value, bool variadic, const sig::Signature &signature) {
 952     JSObjectRef Function(CYGetCachedObject(context, CYJSString("Function")));
 953
 954     bool function(_jsccall(JSValueIsInstanceOfConstructor, context, value, Function));
 955     if (function) {
 956         JSObjectRef function(CYCastJSObject(context, value));
 957         return CYMakeFunctor(context, function, signature);
 958     } else {
 959         void (*function)()(CYCastPointer<void (*)()>(context, value));
 960         return CYMakeFunctor(context, function, variadic, signature);
 961     }
 962 }
 963
 964 static JSValueRef CString_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
 965     CYPool pool;
 966     CString *internal(reinterpret_cast<CString *>(JSObjectGetPrivate(object)));
 967
 968     ssize_t offset;
 969     if (!CYGetOffset(pool, context, property, offset))
 970         return NULL;
 971
 972     return CYCastJSValue(context, CYJSString(CYUTF8String(&internal->value_[offset], 1)));
 973 } CYCatch(NULL) }
 974
 975 static bool CString_setProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef value, JSValueRef *exception) { CYTry {
 976     CYPool pool;
 977     CString *internal(reinterpret_cast<CString *>(JSObjectGetPrivate(object)));
 978
 979     ssize_t offset;
 980     if (!CYGetOffset(pool, context, property, offset))
 981         return false;
 982
 983     const char *data(CYPoolCString(pool, context, value));
 984     internal->value_[offset] = *data;
 985     return true;
 986 } CYCatch(false) }
 987
 988 static bool Index_(CYPool &pool, JSContextRef context, Struct_privateData *internal, JSStringRef property, ssize_t &index, uint8_t *&base) {
 989     Type_privateData *typical(internal->type_);
 990     sig::Aggregate *type(static_cast<sig::Aggregate *>(typical->type_));
 991     if (type == NULL)
 992         return false;
 993
 994     const char *name(CYPoolCString(pool, context, property));
 995     size_t length(strlen(name));
 996     double number(CYCastDouble(name, length));
 997
 998     size_t count(type->signature.count);
 999
1000     if (std::isnan(number)) {
1001         if (property == NULL)
1002             return false;
1003
1004         sig::Element *elements(type->signature.elements);
1005
1006         for (size_t local(0); local != count; ++local) {
1007             sig::Element *element(&elements[local]);
1008             if (element->name != NULL && strcmp(name, element->name) == 0) {
1009                 index = local;
1010                 goto base;
1011             }
1012         }
1013
1014         return false;
1015     } else {
1016         index = static_cast<ssize_t>(number);
1017         if (index != number || index < 0 || static_cast<size_t>(index) >= count)
1018             return false;
1019     }
1020
1021   base:
1022     ffi_type **elements(typical->GetFFI()->elements);
1023
1024     size_t offset(0);
1025     for (ssize_t local(0); local != index; ++local) {
1026         offset += elements[local]->size;
1027         CYAlign(offset, elements[local + 1]->alignment);
1028     }
1029
1030     base = reinterpret_cast<uint8_t *>(internal->value_) + offset;
1031     return true;
1032 }
1033
1034 static void *Offset_(CYPool &pool, JSContextRef context, JSStringRef property, void *data, ffi_type *ffi) {
1035     ssize_t offset;
1036     if (JSStringIsEqualToUTF8CString(property, "$cyi"))
1037         offset = 0;
1038     else if (!CYGetOffset(pool, context, property, offset))
1039         return NULL;
1040     return reinterpret_cast<uint8_t *>(data) + ffi->size * offset;
1041 }
1042
1043 static JSValueRef Offset_getProperty(CYPool &pool, JSContextRef context, JSStringRef property, void *data, Type_privateData *typical, JSObjectRef owner) {
1044     ffi_type *ffi(typical->GetFFI());
1045     void *base(Offset_(pool, context, property, data, ffi));
1046     if (base == NULL)
1047         return NULL;
1048     return typical->type_->FromFFI(context, ffi, base, false, owner);
1049 }
1050
1051 static bool Offset_setProperty(CYPool &pool, JSContextRef context, JSStringRef property, void *data, Type_privateData *typical, JSValueRef value) {
1052     ffi_type *ffi(typical->GetFFI());
1053     void *base(Offset_(pool, context, property, data, ffi));
1054     if (base == NULL)
1055         return false;
1056
1057     typical->type_->PoolFFI(NULL, context, ffi, base, value);
1058     return true;
1059 }
1060
1061 static JSValueRef CArray_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1062     CYPool pool;
1063     CArray *internal(reinterpret_cast<CArray *>(JSObjectGetPrivate(object)));
1064     if (JSStringIsEqual(property, length_s))
1065         return CYCastJSValue(context, internal->length_);
1066     Type_privateData *typical(internal->type_);
1067     JSObjectRef owner(internal->owner_ ?: object);
1068     return Offset_getProperty(pool, context, property, internal->value_, typical, owner);
1069 } CYCatch(NULL) }
1070
1071 static bool CArray_setProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef value, JSValueRef *exception) { CYTry {
1072     CYPool pool;
1073     Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(object)));
1074     Type_privateData *typical(internal->type_);
1075     return Offset_setProperty(pool, context, property, internal->value_, typical, value);
1076 } CYCatch(false) }
1077
1078 static JSValueRef Pointer_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1079     CYPool pool;
1080     Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(object)));
1081
1082     Type_privateData *typical(internal->type_);
1083
1084     if (sig::Function *function = dynamic_cast<sig::Function *>(typical->type_)) {
1085         if (!JSStringIsEqualToUTF8CString(property, "$cyi"))
1086             return NULL;
1087         return CYMakeFunctor(context, reinterpret_cast<void (*)()>(internal->value_), function->variadic, function->signature);
1088     }
1089
1090     JSObjectRef owner(internal->owner_ ?: object);
1091     return Offset_getProperty(pool, context, property, internal->value_, typical, owner);
1092 } CYCatch(NULL) }
1093
1094 static bool Pointer_setProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef value, JSValueRef *exception) { CYTry {
1095     CYPool pool;
1096     Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(object)));
1097     Type_privateData *typical(internal->type_);
1098     return Offset_setProperty(pool, context, property, internal->value_, typical, value);
1099 } CYCatch(false) }
1100
1101 static JSValueRef Struct_callAsFunction_$cya(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1102     Struct_privateData *internal(reinterpret_cast<Struct_privateData *>(JSObjectGetPrivate(_this)));
1103     Type_privateData *typical(internal->type_);
1104     return CYMakePointer(context, internal->value_, *typical->type_, typical->ffi_, _this);
1105 } CYCatch(NULL) }
1106
1107 static JSValueRef Struct_getProperty_$cyt(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1108     Struct_privateData *internal(reinterpret_cast<Struct_privateData *>(JSObjectGetPrivate(object)));
1109     return CYMakeType(context, *internal->type_->type_);
1110 } CYCatch(NULL) }
1111
1112 static JSValueRef Struct_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1113     CYPool pool;
1114     Struct_privateData *internal(reinterpret_cast<Struct_privateData *>(JSObjectGetPrivate(object)));
1115     Type_privateData *typical(internal->type_);
1116     sig::Aggregate *type(static_cast<sig::Aggregate *>(typical->type_));
1117
1118     ssize_t index;
1119     uint8_t *base;
1120
1121     if (!Index_(pool, context, internal, property, index, base))
1122         return NULL;
1123
1124     JSObjectRef owner(internal->owner_ ?: object);
1125
1126     return type->signature.elements[index].type->FromFFI(context, typical->GetFFI()->elements[index], base, false, owner);
1127 } CYCatch(NULL) }
1128
1129 static bool Struct_setProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef value, JSValueRef *exception) { CYTry {
1130     CYPool pool;
1131     Struct_privateData *internal(reinterpret_cast<Struct_privateData *>(JSObjectGetPrivate(object)));
1132     Type_privateData *typical(internal->type_);
1133     sig::Aggregate *type(static_cast<sig::Aggregate *>(typical->type_));
1134
1135     ssize_t index;
1136     uint8_t *base;
1137
1138     if (!Index_(pool, context, internal, property, index, base))
1139         return false;
1140
1141     type->signature.elements[index].type->PoolFFI(NULL, context, typical->GetFFI()->elements[index], base, value);
1142     return true;
1143 } CYCatch(false) }
1144
1145 static void Struct_getPropertyNames(JSContextRef context, JSObjectRef object, JSPropertyNameAccumulatorRef names) {
1146     Struct_privateData *internal(reinterpret_cast<Struct_privateData *>(JSObjectGetPrivate(object)));
1147     Type_privateData *typical(internal->type_);
1148     sig::Aggregate *type(static_cast<sig::Aggregate *>(typical->type_));
1149
1150     if (type == NULL)
1151         return;
1152
1153     size_t count(type->signature.count);
1154     sig::Element *elements(type->signature.elements);
1155
1156     char number[32];
1157
1158     for (size_t index(0); index != count; ++index) {
1159         const char *name;
1160         name = elements[index].name;
1161
1162         if (name == NULL) {
1163             sprintf(number, "%zu", index);
1164             name = number;
1165         }
1166
1167         JSPropertyNameAccumulatorAddName(names, CYJSString(name));
1168     }
1169 }
1170
1171 static sig::Void Void_;
1172 static sig::Pointer PointerToVoid_(Void_);
1173
1174 static sig::Type *CYGetType(CYPool &pool, JSContextRef context, JSValueRef value) {
1175     if (JSValueIsNull(context, value))
1176         return &PointerToVoid_;
1177     JSObjectRef object(CYCastJSObject(context, value));
1178     JSObjectRef type(CYCastJSObject(context, CYGetProperty(context, object, cyt_s)));
1179     _assert(JSValueIsObjectOfClass(context, type, Type_privateData::Class_));
1180     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(type)));
1181     return internal->type_;
1182 }
1183
1184 void CYCallFunction(CYPool &pool, JSContextRef context, ffi_cif *cif, void (*function)(), void *value, void **values) {
1185     ffi_call(cif, function, value, values);
1186 }
1187
1188 JSValueRef CYCallFunction(CYPool &pool, JSContextRef context, size_t setups, void *setup[], size_t count, const JSValueRef arguments[], bool initialize, bool variadic, const sig::Signature &signature, ffi_cif *cif, void (*function)()) {
1189     size_t have(setups + count);
1190     size_t need(signature.count - 1);
1191
1192     if (have < need)
1193         throw CYJSError(context, "insufficient number of arguments to ffi function");
1194
1195     ffi_cif corrected;
1196     sig::Element *elements(signature.elements);
1197
1198     if (have > need) {
1199         if (!variadic)
1200             throw CYJSError(context, "exorbitant number of arguments to ffi function");
1201
1202         elements = new (pool) sig::Element[have + 1];
1203         memcpy(elements, signature.elements, sizeof(sig::Element) * (need + 1));
1204
1205         for (size_t index(need); index != have; ++index) {
1206             sig::Element &element(elements[index + 1]);
1207             element.name = NULL;
1208             element.offset = _not(size_t);
1209             element.type = CYGetType(pool, context, arguments[index - setups]);
1210         }
1211
1212         sig::Signature extended;
1213         extended.elements = elements;
1214         extended.count = have + 1;
1215         sig::sig_ffi_cif(pool, signature.count, extended, &corrected);
1216         cif = &corrected;
1217     }
1218
1219     void *values[have];
1220     memcpy(values, setup, sizeof(void *) * setups);
1221
1222     for (size_t index(setups); index != have; ++index) {
1223         sig::Element &element(elements[index + 1]);
1224         ffi_type *ffi(cif->arg_types[index]);
1225         values[index] = pool.malloc<uint8_t>(ffi->size, ffi->alignment);
1226         element.type->PoolFFI(&pool, context, ffi, values[index], arguments[index - setups]);
1227     }
1228
1229     uint8_t value[cif->rtype->size];
1230
1231     void (*call)(CYPool &, JSContextRef, ffi_cif *, void (*)(), void *, void **) = &CYCallFunction;
1232     // XXX: this only supports one hook, but it is a bad idea anyway
1233     for (CYHook *hook : GetHooks())
1234         if (hook->CallFunction != NULL)
1235             call = hook->CallFunction;
1236
1237     call(pool, context, cif, function, value, values);
1238     return signature.elements[0].type->FromFFI(context, cif->rtype, value, initialize);
1239 }
1240
1241 static JSValueRef Functor_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1242     CYPool pool;
1243     cy::Functor *internal(reinterpret_cast<cy::Functor *>(JSObjectGetPrivate(object)));
1244     return CYCallFunction(pool, context, 0, NULL, count, arguments, false, internal->variadic_, internal->signature_, &internal->cif_, internal->value_);
1245 } CYCatch(NULL) }
1246
1247 static JSValueRef Pointer_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1248     Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(object)));
1249     if (dynamic_cast<sig::Function *>(internal->type_->type_) == NULL)
1250         throw CYJSError(context, "cannot call a pointer to non-function");
1251     JSObjectRef functor(CYCastJSObject(context, CYGetProperty(context, object, cyi_s)));
1252     return CYCallAsFunction(context, functor, _this, count, arguments);
1253 } CYCatch(NULL) }
1254
1255 JSObjectRef CYMakeType(JSContextRef context, const sig::Type &type) {
1256     return Type_privateData::Make(context, type);
1257 }
1258
1259 extern "C" bool CYBridgeHash(CYPool &pool, CYUTF8String name, const char *&code, unsigned &flags) {
1260     sqlite3_stmt *statement;
1261
1262     _sqlcall(sqlite3_prepare(database_,
1263         "select "
1264             "\"cache\".\"code\", "
1265             "\"cache\".\"flags\" "
1266         "from \"cache\" "
1267         "where"
1268             " \"cache\".\"system\" & " CY_SYSTEM " == " CY_SYSTEM " and"
1269             " \"cache\".\"name\" = ?"
1270         " limit 1"
1271     , -1, &statement, NULL));
1272
1273     _sqlcall(sqlite3_bind_text(statement, 1, name.data, name.size, SQLITE_STATIC));
1274
1275     bool success;
1276     if (_sqlcall(sqlite3_step(statement)) == SQLITE_DONE)
1277         success = false;
1278     else {
1279         success = true;
1280         code = sqlite3_column_pooled(pool, statement, 0);
1281         flags = sqlite3_column_int(statement, 1);
1282     }
1283
1284     _sqlcall(sqlite3_finalize(statement));
1285     return success;
1286 }
1287
1288 static bool All_hasProperty(JSContextRef context, JSObjectRef object, JSStringRef property) {
1289     if (JSStringIsEqualToUTF8CString(property, "errno"))
1290         return true;
1291
1292     JSObjectRef global(CYGetGlobalObject(context));
1293     JSObjectRef cycript(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Cycript"))));
1294     JSObjectRef alls(CYCastJSObject(context, CYGetProperty(context, cycript, CYJSString("alls"))));
1295
1296     for (size_t i(0), count(CYArrayLength(context, alls)); i != count; ++i)
1297         if (JSObjectRef space = CYCastJSObject(context, CYArrayGet(context, alls, count - i - 1)))
1298             if (CYHasProperty(context, space, property))
1299                 return true;
1300
1301     CYPool pool;
1302     const char *code;
1303     unsigned flags;
1304     if (CYBridgeHash(pool, CYPoolUTF8String(pool, context, property), code, flags))
1305         return true;
1306
1307     return false;
1308 }
1309
1310 static JSValueRef All_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1311     if (JSStringIsEqualToUTF8CString(property, "errno"))
1312         return CYCastJSValue(context, errno);
1313
1314     JSObjectRef global(CYGetGlobalObject(context));
1315     JSObjectRef cycript(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Cycript"))));
1316     JSObjectRef alls(CYCastJSObject(context, CYGetProperty(context, cycript, CYJSString("alls"))));
1317
1318     for (size_t i(0), count(CYArrayLength(context, alls)); i != count; ++i)
1319         if (JSObjectRef space = CYCastJSObject(context, CYArrayGet(context, alls, count - i - 1)))
1320             if (JSValueRef value = CYGetProperty(context, space, property))
1321                 if (!JSValueIsUndefined(context, value))
1322                     return value;
1323
1324     CYPool pool;
1325     const char *code;
1326     unsigned flags;
1327     if (CYBridgeHash(pool, CYPoolUTF8String(pool, context, property), code, flags)) {
1328         CYUTF8String parsed;
1329
1330         try {
1331             parsed = CYPoolCode(pool, code);
1332         } catch (const CYException &error) {
1333             CYThrow("%s", pool.strcat("error caching ", CYPoolCString(pool, context, property), ": ", error.PoolCString(pool), NULL));
1334         }
1335
1336         JSObjectRef cache(CYGetCachedObject(context, CYJSString("cache")));
1337
1338         JSObjectRef stub;
1339         if (flags == CYBridgeType) {
1340             stub = CYMakeType(context, sig::Void());
1341             CYSetProperty(context, cache, property, stub);
1342         } else
1343             stub = NULL;
1344
1345         JSValueRef value(_jsccall(JSEvaluateScript, context, CYJSString(parsed), NULL, NULL, 0));
1346
1347         switch (flags) {
1348             case CYBridgeVoid: {
1349             } break;
1350
1351             case CYBridgeHold: {
1352                 CYSetProperty(context, cache, property, value);
1353             } break;
1354
1355             case CYBridgeType: {
1356                 JSObjectRef swap(CYCastJSObject(context, value));
1357                 void *source(JSObjectGetPrivate(swap));
1358                 _assert(source != NULL);
1359                 void *target(JSObjectGetPrivate(stub));
1360                 _assert(JSObjectSetPrivate(swap, target));
1361                 _assert(JSObjectSetPrivate(stub, source));
1362                 value = stub;
1363             } break;
1364         }
1365
1366         return value;
1367     }
1368
1369     return NULL;
1370 } CYCatch(NULL) }
1371
1372 static JSValueRef All_complete_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1373     _assert(count == 1);
1374     CYPool pool;
1375     CYUTF8String prefix(CYPoolUTF8String(pool, context, CYJSString(context, arguments[0])));
1376
1377     JSObjectRef array(NULL);
1378
1379     {
1380     CYArrayBuilder<1024> values(context, array);
1381
1382     sqlite3_stmt *statement;
1383
1384     if (prefix.size == 0)
1385         _sqlcall(sqlite3_prepare(database_,
1386             "select "
1387                 "\"cache\".\"name\" "
1388             "from \"cache\" "
1389             "where"
1390                 " \"cache\".\"system\" & " CY_SYSTEM " == " CY_SYSTEM
1391         , -1, &statement, NULL));
1392     else {
1393         _sqlcall(sqlite3_prepare(database_,
1394             "select "
1395                 "\"cache\".\"name\" "
1396             "from \"cache\" "
1397             "where"
1398                 " \"cache\".\"name\" >= ? and \"cache\".\"name\" < ? and "
1399                 " \"cache\".\"system\" & " CY_SYSTEM " == " CY_SYSTEM
1400         , -1, &statement, NULL));
1401
1402         _sqlcall(sqlite3_bind_text(statement, 1, prefix.data, prefix.size, SQLITE_STATIC));
1403
1404         char *after(pool.strndup(prefix.data, prefix.size));
1405         ++after[prefix.size - 1];
1406         _sqlcall(sqlite3_bind_text(statement, 2, after, prefix.size, SQLITE_STATIC));
1407     }
1408
1409     while (_sqlcall(sqlite3_step(statement)) != SQLITE_DONE)
1410         values(CYCastJSValue(context, CYJSString(sqlite3_column_string(statement, 0))));
1411
1412     _sqlcall(sqlite3_finalize(statement));
1413     }
1414
1415     return array;
1416 } CYCatch(NULL) }
1417
1418 static void All_getPropertyNames(JSContextRef context, JSObjectRef object, JSPropertyNameAccumulatorRef names) {
1419     JSObjectRef global(CYGetGlobalObject(context));
1420     JSObjectRef cycript(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Cycript"))));
1421     JSObjectRef alls(CYCastJSObject(context, CYGetProperty(context, cycript, CYJSString("alls"))));
1422
1423     for (size_t i(0), count(CYArrayLength(context, alls)); i != count; ++i)
1424         if (JSObjectRef space = CYCastJSObject(context, CYArrayGet(context, alls, count - i - 1))) {
1425             JSPropertyNameArrayRef subset(JSObjectCopyPropertyNames(context, space));
1426             for (size_t index(0), count(JSPropertyNameArrayGetCount(subset)); index != count; ++index)
1427                 JSPropertyNameAccumulatorAddName(names, JSPropertyNameArrayGetNameAtIndex(subset, index));
1428             JSPropertyNameArrayRelease(subset);
1429         }
1430 }
1431
1432 static JSObjectRef CArray_new(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1433     _assert(false);
1434 } CYCatch(NULL) }
1435
1436 static JSObjectRef CString_new(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1437     _assert(false);
1438 } CYCatch(NULL) }
1439
1440 static JSObjectRef Pointer_new(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1441     _assert(false);
1442 } CYCatch(NULL) }
1443
1444 static JSObjectRef Type_new(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1445     CYPool pool;
1446
1447     if (false) {
1448     } else if (count == 1) {
1449         const char *encoding(CYPoolCString(pool, context, arguments[0]));
1450         sig::Signature signature;
1451         sig::Parse(pool, &signature, encoding, &Structor_);
1452         return CYMakeType(context, *signature.elements[0].type);
1453     } else if (count == 2) {
1454         JSObjectRef types(CYCastJSObject(context, arguments[0]));
1455         size_t count(CYArrayLength(context, types));
1456
1457         JSObjectRef names(CYCastJSObject(context, arguments[1]));
1458
1459         sig::Aggregate type(false);
1460         type.signature.elements = new(pool) sig::Element[count];
1461         type.signature.count = count;
1462
1463         for (size_t i(0); i != count; ++i) {
1464             sig::Element &element(type.signature.elements[i]);
1465             element.offset = _not(size_t);
1466
1467             JSValueRef name(CYArrayGet(context, names, i));
1468             if (JSValueIsUndefined(context, name))
1469                 element.name = NULL;
1470             else
1471                 element.name = CYPoolCString(pool, context, name);
1472
1473             JSObjectRef object(CYCastJSObject(context, CYArrayGet(context, types, i)));
1474             _assert(JSValueIsObjectOfClass(context, object, Type_privateData::Class_));
1475             Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
1476             element.type = internal->type_;
1477         }
1478
1479         return CYMakeType(context, type);
1480     } else {
1481         throw CYJSError(context, "incorrect number of arguments to Type constructor");
1482     }
1483 } CYCatch(NULL) }
1484
1485 static JSValueRef Type_callAsFunction_$With(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], sig::Callable &type, JSValueRef *exception) { CYTry {
1486     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1487
1488     CYPool pool;
1489
1490     type.signature.elements = new(pool) sig::Element[1 + count];
1491     type.signature.count = 1 + count;
1492
1493     type.signature.elements[0].name = NULL;
1494     type.signature.elements[0].type = internal->type_;
1495     type.signature.elements[0].offset = _not(size_t);
1496
1497     for (size_t i(0); i != count; ++i) {
1498         sig::Element &element(type.signature.elements[i + 1]);
1499         element.name = NULL;
1500         element.offset = _not(size_t);
1501
1502         JSObjectRef object(CYCastJSObject(context, arguments[i]));
1503         _assert(JSValueIsObjectOfClass(context, object, Type_privateData::Class_));
1504         Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
1505
1506         element.type = internal->type_;
1507     }
1508
1509     return CYMakeType(context, type);
1510 } CYCatch(NULL) }
1511
1512 static JSValueRef Type_callAsFunction_arrayOf(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1513     if (count != 1)
1514         throw CYJSError(context, "incorrect number of arguments to Type.arrayOf");
1515     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1516
1517     CYPool pool;
1518     size_t index(CYGetIndex(pool, context, CYJSString(context, arguments[0])));
1519     if (index == _not(size_t))
1520         throw CYJSError(context, "invalid array size used with Type.arrayOf");
1521
1522     sig::Array type(*internal->type_, index);
1523     return CYMakeType(context, type);
1524 } CYCatch(NULL) }
1525
1526 static JSValueRef Type_callAsFunction_blockWith(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
1527 #ifdef CY_OBJECTIVEC
1528     sig::Block type;
1529     return Type_callAsFunction_$With(context, object, _this, count, arguments, type, exception);
1530 #else
1531     _assert(false);
1532 #endif
1533 }
1534
1535 static JSValueRef Type_callAsFunction_constant(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1536     if (count != 0)
1537         throw CYJSError(context, "incorrect number of arguments to Type.constant");
1538     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1539
1540     CYPool pool;
1541     sig::Type *type(internal->type_->Copy(pool));
1542     type->flags |= JOC_TYPE_CONST;
1543     return CYMakeType(context, *type);
1544 } CYCatch(NULL) }
1545
1546 static JSValueRef Type_callAsFunction_functionWith(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
1547     bool variadic(count != 0 && JSValueIsNull(context, arguments[count - 1]));
1548     sig::Function type(variadic);
1549     return Type_callAsFunction_$With(context, object, _this, variadic ? count - 1 : count, arguments, type, exception);
1550 }
1551
1552 static JSValueRef Type_callAsFunction_pointerTo(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1553     if (count != 0)
1554         throw CYJSError(context, "incorrect number of arguments to Type.pointerTo");
1555     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1556
1557     if (dynamic_cast<sig::Primitive<char> *>(internal->type_) != NULL)
1558         return CYMakeType(context, sig::String());
1559     else
1560         return CYMakeType(context, sig::Pointer(*internal->type_));
1561 } CYCatch(NULL) }
1562
1563 static JSValueRef Type_callAsFunction_withName(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1564     if (count != 1)
1565         throw CYJSError(context, "incorrect number of arguments to Type.withName");
1566     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1567
1568     CYPool pool;
1569     return CYMakeType(context, *internal->type_->Copy(pool, CYPoolCString(pool, context, arguments[0])));
1570 } CYCatch(NULL) }
1571
1572 static JSValueRef Type_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1573     if (count != 1)
1574         throw CYJSError(context, "incorrect number of arguments to type cast function");
1575     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
1576
1577     if (sig::Function *function = dynamic_cast<sig::Function *>(internal->type_))
1578         return CYMakeFunctor(context, arguments[0], function->variadic, function->signature);
1579
1580     CYPool pool;
1581
1582     sig::Type *type(internal->type_);
1583     ffi_type *ffi(internal->GetFFI());
1584     void *data(pool.malloc<void>(ffi->size, ffi->alignment));
1585
1586     type->PoolFFI(&pool, context, ffi, data, arguments[0]);
1587     JSValueRef value(type->FromFFI(context, ffi, data));
1588
1589     if (JSValueGetType(context, value) == kJSTypeNumber) {
1590         JSObjectRef typed(_jsccall(JSObjectCallAsConstructor, context, CYGetCachedObject(context, CYJSString("Number")), 1, &value));
1591         CYSetProperty(context, typed, cyt_s, object, kJSPropertyAttributeDontEnum);
1592         value = typed;
1593     }
1594
1595     return value;
1596 } CYCatch(NULL) }
1597
1598 static JSObjectRef Type_callAsConstructor(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1599     if (count > 1)
1600         throw CYJSError(context, "incorrect number of arguments to Type allocator");
1601     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
1602
1603     JSObjectRef pointer(CYMakePointer(context, NULL, *internal->type_, NULL, NULL));
1604     Pointer *value(reinterpret_cast<Pointer *>(JSObjectGetPrivate(pointer)));
1605
1606     sig::Type *type(internal->type_);
1607     ffi_type *ffi(internal->GetFFI());
1608     value->value_ = value->pool_->malloc<void>(ffi->size, ffi->alignment);
1609
1610     if (count == 0)
1611         memset(value->value_, 0, ffi->size);
1612     else
1613         type->PoolFFI(value->pool_, context, ffi, value->value_, arguments[0]);
1614
1615     return pointer;
1616 } CYCatch(NULL) }
1617
1618 static JSObjectRef Functor_new(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1619     if (count != 2)
1620         throw CYJSError(context, "incorrect number of arguments to Functor constructor");
1621     CYPool pool;
1622     const char *encoding(CYPoolCString(pool, context, arguments[1]));
1623     sig::Signature signature;
1624     sig::Parse(pool, &signature, encoding, &Structor_);
1625     return CYMakeFunctor(context, arguments[0], false, signature);
1626 } CYCatch(NULL) }
1627
1628 static JSValueRef CArray_callAsFunction_toPointer(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1629     CArray *internal(reinterpret_cast<CArray *>(JSObjectGetPrivate(_this)));
1630     JSObjectRef owner(internal->owner_ ?: object);
1631     return CYMakePointer(context, internal->value_, *internal->type_->type_, NULL, owner);
1632 } CYCatch(NULL) }
1633
1634 static JSValueRef CString_callAsFunction_toPointer(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1635     CString *internal(reinterpret_cast<CString *>(JSObjectGetPrivate(_this)));
1636     JSObjectRef owner(internal->owner_ ?: object);
1637     return CYMakePointer(context, internal->value_, sig::Primitive<char>(), NULL, owner);
1638 } CYCatch(NULL) }
1639
1640 static JSValueRef Functor_callAsFunction_$cya(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1641     CYPool pool;
1642     cy::Functor *internal(reinterpret_cast<cy::Functor *>(JSObjectGetPrivate(_this)));
1643
1644     sig::Function type(internal->variadic_);
1645     sig::Copy(pool, type.signature, internal->signature_);
1646
1647     return CYMakePointer(context, reinterpret_cast<void *>(internal->value_), type, NULL, NULL);
1648 } CYCatch(NULL) }
1649
1650 static JSValueRef Pointer_callAsFunction_toPointer(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1651     return _this;
1652 } CYCatch(NULL) }
1653
1654 static JSValueRef CArray_callAsFunction_valueOf(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1655     CArray *internal(reinterpret_cast<CArray *>(JSObjectGetPrivate(_this)));
1656     return CYCastJSValue(context, reinterpret_cast<uintptr_t>(internal->value_));
1657 } CYCatch(NULL) }
1658
1659 static JSValueRef Pointer_callAsFunction_valueOf(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1660     Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(_this)));
1661     return CYCastJSValue(context, reinterpret_cast<uintptr_t>(internal->value_));
1662 } CYCatch(NULL) }
1663
1664 static JSValueRef Functor_callAsFunction_valueOf(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1665     cy::Functor *internal(reinterpret_cast<cy::Functor *>(JSObjectGetPrivate(_this)));
1666     return CYCastJSValue(context, reinterpret_cast<uintptr_t>(internal->value_));
1667 } CYCatch(NULL) }
1668
1669 static JSValueRef Functor_callAsFunction_toCYON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1670     cy::Functor *internal(reinterpret_cast<cy::Functor *>(JSObjectGetPrivate(_this)));
1671     uint8_t *value(reinterpret_cast<uint8_t *>(internal->value_));
1672
1673     CYLocalPool pool;
1674
1675     sig::Function function(internal->variadic_);
1676     sig::Copy(pool, function.signature, internal->signature_);
1677
1678     auto typed(CYDecodeType(pool, &function)); {
1679         std::ostringstream str;
1680         Dl_info info;
1681         if (internal->value_ == NULL)
1682             str << "NULL";
1683         else if (dladdr(value, &info) == 0)
1684             str << internal->value_;
1685         else {
1686             str << info.dli_sname;
1687             off_t offset(value - reinterpret_cast<uint8_t *>(info.dli_saddr));
1688             if (offset != 0)
1689                 str << "+0x" << std::hex << offset;
1690         }
1691
1692         typed->identifier_ = new(pool) CYIdentifier(pool.strdup(str.str().c_str()));
1693     }
1694
1695     std::ostringstream str;
1696     CYOptions options;
1697     CYOutput output(*str.rdbuf(), options);
1698     output.pretty_ = true;
1699     (new(pool) CYExternalExpression(new(pool) CYString("C"), typed))->Output(output, CYNoFlags);
1700     return CYCastJSValue(context, CYJSString(str.str()));
1701 } CYCatch(NULL) }
1702
1703 static JSValueRef Pointer_callAsFunction_toCYON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1704     std::set<void *> *objects(CYCastObjects(context, _this, count, arguments));
1705
1706     Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(_this)));
1707
1708     try {
1709         JSValueRef value(CYGetProperty(context, _this, cyi_s));
1710         if (!JSValueIsUndefined(context, value)) {
1711             CYPool pool;
1712             return CYCastJSValue(context, pool.strcat("&", CYPoolCCYON(pool, context, value, objects), NULL));
1713         }
1714     } catch (const CYException &e) {
1715         // XXX: it might be interesting to include this error
1716     }
1717
1718     CYLocalPool pool;
1719     std::ostringstream str;
1720
1721     sig::Pointer type(*internal->type_->type_);
1722
1723     CYOptions options;
1724     CYOutput output(*str.rdbuf(), options);
1725     (new(pool) CYTypeExpression(CYDecodeType(pool, &type)))->Output(output, CYNoFlags);
1726
1727     str << "(" << internal->value_ << ")";
1728     std::string value(str.str());
1729     return CYCastJSValue(context, CYJSString(CYUTF8String(value.c_str(), value.size())));
1730 } CYCatch(NULL) }
1731
1732 static JSValueRef CString_getProperty_length(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1733     CString *internal(reinterpret_cast<CString *>(JSObjectGetPrivate(object)));
1734     return CYCastJSValue(context, strlen(internal->value_));
1735 } CYCatch(NULL) }
1736
1737 static JSValueRef CString_getProperty_$cyt(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1738     return CYMakeType(context, sig::String());
1739 } CYCatch(NULL) }
1740
1741 static JSValueRef CArray_getProperty_$cyt(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1742     CArray *internal(reinterpret_cast<CArray *>(JSObjectGetPrivate(object)));
1743     sig::Array type(*internal->type_->type_, internal->length_);
1744     return CYMakeType(context, type);
1745 } CYCatch(NULL) }
1746
1747 static JSValueRef Pointer_getProperty_$cyt(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1748     Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(object)));
1749     sig::Pointer type(*internal->type_->type_);
1750     return CYMakeType(context, type);
1751 } CYCatch(NULL) }
1752
1753 static JSValueRef CString_callAsFunction_toCYON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1754     CString *internal(reinterpret_cast<CString *>(JSObjectGetPrivate(_this)));
1755     const char *string(internal->value_);
1756     std::ostringstream str;
1757     if (string == NULL)
1758         str << "NULL";
1759     else {
1760         str << "&";
1761         CYStringify(str, string, strlen(string), true);
1762     }
1763     std::string value(str.str());
1764     return CYCastJSValue(context, CYJSString(CYUTF8String(value.c_str(), value.size())));
1765 } CYCatch(NULL) }
1766
1767 static JSValueRef CString_callAsFunction_toString(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1768     CString *internal(reinterpret_cast<CString *>(JSObjectGetPrivate(_this)));
1769     return CYCastJSValue(context, internal->value_);
1770 } CYCatch(NULL) }
1771
1772 static JSValueRef Functor_getProperty_$cyt(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1773     cy::Functor *internal(reinterpret_cast<cy::Functor *>(JSObjectGetPrivate(object)));
1774     CYPool pool;
1775     sig::Function type(internal->variadic_);
1776     sig::Copy(pool, type.signature, internal->signature_);
1777     return CYMakeType(context, type);
1778 } CYCatch(NULL) }
1779
1780 static JSValueRef Type_getProperty_alignment(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1781     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
1782     return CYCastJSValue(context, internal->GetFFI()->alignment);
1783 } CYCatch(NULL) }
1784
1785 static JSValueRef Type_getProperty_name(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1786     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
1787     return CYCastJSValue(context, internal->type_->GetName());
1788 } CYCatch(NULL) }
1789
1790 static JSValueRef Type_getProperty_size(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1791     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
1792     return CYCastJSValue(context, internal->GetFFI()->size);
1793 } CYCatch(NULL) }
1794
1795 static JSValueRef Type_callAsFunction_toString(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1796     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1797     CYPool pool;
1798     const char *type(sig::Unparse(pool, internal->type_));
1799     return CYCastJSValue(context, CYJSString(type));
1800 } CYCatch(NULL) }
1801
1802 static JSValueRef Type_callAsFunction_toCYON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1803     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1804     CYLocalPool pool;
1805     std::stringbuf out;
1806     CYOptions options;
1807     CYOutput output(out, options);
1808     output.pretty_ = true;
1809     (new(pool) CYTypeExpression(CYDecodeType(pool, internal->type_->Copy(pool, ""))))->Output(output, CYNoFlags);
1810     return CYCastJSValue(context, CYJSString(out.str().c_str()));
1811 } CYCatch(NULL) }
1812
1813 static JSStaticFunction All_staticFunctions[2] = {
1814     {"cy$complete", &All_complete_callAsFunction, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1815     {NULL, NULL, 0}
1816 };
1817
1818 static JSStaticFunction CArray_staticFunctions[3] = {
1819     {"toPointer", &CArray_callAsFunction_toPointer, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1820     {"valueOf", &CArray_callAsFunction_valueOf, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1821     {NULL, NULL, 0}
1822 };
1823
1824 static JSStaticValue CArray_staticValues[2] = {
1825     {"$cyt", &CArray_getProperty_$cyt, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1826     {NULL, NULL, NULL, 0}
1827 };
1828
1829 static JSStaticFunction CString_staticFunctions[5] = {
1830     {"toCYON", &CString_callAsFunction_toCYON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1831     {"toPointer", &CString_callAsFunction_toPointer, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1832     {"toString", &CString_callAsFunction_toString, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1833     {"valueOf", &CString_callAsFunction_toString, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1834     {NULL, NULL, 0}
1835 };
1836
1837 static JSStaticValue CString_staticValues[3] = {
1838     {"length", &CString_getProperty_length, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1839     {"$cyt", &CString_getProperty_$cyt, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1840     {NULL, NULL, NULL, 0}
1841 };
1842
1843 static JSStaticFunction Pointer_staticFunctions[4] = {
1844     {"toCYON", &Pointer_callAsFunction_toCYON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1845     {"toPointer", &Pointer_callAsFunction_toPointer, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1846     {"valueOf", &Pointer_callAsFunction_valueOf, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1847     {NULL, NULL, 0}
1848 };
1849
1850 static JSStaticValue Pointer_staticValues[2] = {
1851     {"$cyt", &Pointer_getProperty_$cyt, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1852     {NULL, NULL, NULL, 0}
1853 };
1854
1855 static JSStaticFunction Struct_staticFunctions[2] = {
1856     {"$cya", &Struct_callAsFunction_$cya, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1857     {NULL, NULL, 0}
1858 };
1859
1860 static JSStaticValue Struct_staticValues[2] = {
1861     {"$cyt", &Struct_getProperty_$cyt, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1862     {NULL, NULL, NULL, 0}
1863 };
1864
1865 static JSStaticFunction Functor_staticFunctions[4] = {
1866     {"$cya", &Functor_callAsFunction_$cya, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1867     {"toCYON", &Functor_callAsFunction_toCYON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1868     {"valueOf", &Functor_callAsFunction_valueOf, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1869     {NULL, NULL, 0}
1870 };
1871
1872 namespace cy {
1873     JSStaticFunction const * const Functor::StaticFunctions = Functor_staticFunctions;
1874 }
1875
1876 static JSStaticValue Functor_staticValues[2] = {
1877     {"$cyt", &Functor_getProperty_$cyt, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1878     {NULL, NULL, NULL, 0}
1879 };
1880
1881 namespace cy {
1882     JSStaticValue const * const Functor::StaticValues = Functor_staticValues;
1883 }
1884
1885 static JSStaticValue Type_staticValues[4] = {
1886     {"alignment", &Type_getProperty_alignment, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1887     {"name", &Type_getProperty_name, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1888     {"size", &Type_getProperty_size, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1889     {NULL, NULL, NULL, 0}
1890 };
1891
1892 static JSStaticFunction Type_staticFunctions[9] = {
1893     {"arrayOf", &Type_callAsFunction_arrayOf, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1894     {"blockWith", &Type_callAsFunction_blockWith, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1895     {"constant", &Type_callAsFunction_constant, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1896     {"functionWith", &Type_callAsFunction_functionWith, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1897     {"pointerTo", &Type_callAsFunction_pointerTo, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1898     {"withName", &Type_callAsFunction_withName, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1899     {"toCYON", &Type_callAsFunction_toCYON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1900     {"toString", &Type_callAsFunction_toString, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1901     {NULL, NULL, 0}
1902 };
1903
1904 _visible void CYSetArgs(int argc, const char *argv[]) {
1905     JSContextRef context(CYGetJSContext());
1906     JSValueRef args[argc];
1907     for (int i(0); i != argc; ++i)
1908         args[i] = CYCastJSValue(context, argv[i]);
1909
1910     JSObjectRef array(CYObjectMakeArray(context, argc, args));
1911     JSObjectRef System(CYGetCachedObject(context, CYJSString("System")));
1912     CYSetProperty(context, System, CYJSString("args"), array);
1913 }
1914
1915 JSObjectRef CYGetGlobalObject(JSContextRef context) {
1916     return JSContextGetGlobalObject(context);
1917 }
1918
1919 // XXX: this is neither exceptin safe nor even terribly sane
1920 class ExecutionHandle {
1921   private:
1922     JSContextRef context_;
1923     std::vector<void *> handles_;
1924
1925   public:
1926     ExecutionHandle(JSContextRef context) :
1927         context_(context)
1928     {
1929         handles_.resize(GetHooks().size());
1930         for (size_t i(0); i != GetHooks().size(); ++i) {
1931             CYHook *hook(GetHooks()[i]);
1932             if (hook->ExecuteStart != NULL)
1933                 handles_[i] = (*hook->ExecuteStart)(context_);
1934             else
1935                 handles_[i] = NULL;
1936         }
1937     }
1938
1939     ~ExecutionHandle() {
1940         for (size_t i(GetHooks().size()); i != 0; --i) {
1941             CYHook *hook(GetHooks()[i-1]);
1942             if (hook->ExecuteEnd != NULL)
1943                 (*hook->ExecuteEnd)(context_, handles_[i-1]);
1944         }
1945     }
1946 };
1947
1948 #ifndef __ANDROID__
1949 static volatile bool cancel_;
1950
1951 static bool CYShouldTerminate(JSContextRef context, void *arg) {
1952     return cancel_;
1953 }
1954 #endif
1955
1956 _visible const char *CYExecute(JSContextRef context, CYPool &pool, CYUTF8String code) {
1957     ExecutionHandle handle(context);
1958
1959 #ifndef __ANDROID__
1960     cancel_ = false;
1961     if (&JSContextGroupSetExecutionTimeLimit != NULL)
1962         JSContextGroupSetExecutionTimeLimit(JSContextGetGroup(context), 0.5, &CYShouldTerminate, NULL);
1963 #endif
1964
1965     try {
1966         JSValueRef result(_jsccall(JSEvaluateScript, context, CYJSString(code), NULL, NULL, 0));
1967         if (JSValueIsUndefined(context, result))
1968             return NULL;
1969
1970         std::set<void *> objects;
1971         const char *json(_jsccall(CYPoolCCYON, pool, context, result, objects));
1972         CYSetProperty(context, CYGetGlobalObject(context), Result_, result);
1973
1974         return json;
1975     } catch (const CYException &error) {
1976         return pool.strcat("throw ", error.PoolCString(pool), NULL);
1977     }
1978 }
1979
1980 #ifndef __ANDROID__
1981 _visible void CYCancel() {
1982     cancel_ = true;
1983 }
1984 #endif
1985
1986 const char *CYPoolLibraryPath(CYPool &pool);
1987
1988 static bool initialized_ = false;
1989
1990 void CYInitializeDynamic() {
1991     if (!initialized_)
1992         initialized_ = true;
1993     else return;
1994
1995     CYPool pool;
1996     const char *db(pool.strcat(CYPoolLibraryPath(pool), "/libcycript.db", NULL));
1997     _sqlcall(sqlite3_open_v2(db, &database_, SQLITE_OPEN_READONLY, NULL));
1998
1999     JSObjectMakeArray$ = reinterpret_cast<JSObjectRef (*)(JSContextRef, size_t, const JSValueRef[], JSValueRef *)>(dlsym(RTLD_DEFAULT, "JSObjectMakeArray"));
2000     JSSynchronousGarbageCollectForDebugging$ = reinterpret_cast<void (*)(JSContextRef)>(dlsym(RTLD_DEFAULT, "JSSynchronousGarbageCollectForDebugging"));
2001
2002     JSClassDefinition definition;
2003
2004     definition = kJSClassDefinitionEmpty;
2005     definition.className = "All";
2006     definition.staticFunctions = All_staticFunctions;
2007     definition.hasProperty = &All_hasProperty;
2008     definition.getProperty = &All_getProperty;
2009     definition.getPropertyNames = &All_getPropertyNames;
2010     All_ = JSClassCreate(&definition);
2011
2012     definition = kJSClassDefinitionEmpty;
2013     definition.className = "Context";
2014     definition.finalize = &CYFinalize;
2015     Context::Class_ = JSClassCreate(&definition);
2016
2017     definition = kJSClassDefinitionEmpty;
2018     definition.className = "CArray";
2019     definition.staticFunctions = CArray_staticFunctions;
2020     definition.staticValues = CArray_staticValues;
2021     definition.getProperty = &CArray_getProperty;
2022     definition.setProperty = &CArray_setProperty;
2023     definition.finalize = &CYFinalize;
2024     CArray::Class_ = JSClassCreate(&definition);
2025
2026     definition = kJSClassDefinitionEmpty;
2027     definition.className = "CString";
2028     definition.staticFunctions = CString_staticFunctions;
2029     definition.staticValues = CString_staticValues;
2030     definition.getProperty = &CString_getProperty;
2031     definition.setProperty = &CString_setProperty;
2032     definition.finalize = &CYFinalize;
2033     CString::Class_ = JSClassCreate(&definition);
2034
2035     definition = kJSClassDefinitionEmpty;
2036     definition.className = "Functor";
2037     definition.staticFunctions = cy::Functor::StaticFunctions;
2038     definition.staticValues = Functor_staticValues;
2039     definition.callAsFunction = &Functor_callAsFunction;
2040     definition.finalize = &CYFinalize;
2041     Functor_ = JSClassCreate(&definition);
2042
2043     definition = kJSClassDefinitionEmpty;
2044     definition.className = "Pointer";
2045     definition.staticFunctions = Pointer_staticFunctions;
2046     definition.staticValues = Pointer_staticValues;
2047     definition.callAsFunction = &Pointer_callAsFunction;
2048     definition.getProperty = &Pointer_getProperty;
2049     definition.setProperty = &Pointer_setProperty;
2050     definition.finalize = &CYFinalize;
2051     Pointer::Class_ = JSClassCreate(&definition);
2052
2053     definition = kJSClassDefinitionEmpty;
2054     definition.className = "Struct";
2055     definition.staticFunctions = Struct_staticFunctions;
2056     definition.staticValues = Struct_staticValues;
2057     definition.getProperty = &Struct_getProperty;
2058     definition.setProperty = &Struct_setProperty;
2059     definition.getPropertyNames = &Struct_getPropertyNames;
2060     definition.finalize = &CYFinalize;
2061     Struct_privateData::Class_ = JSClassCreate(&definition);
2062
2063     definition = kJSClassDefinitionEmpty;
2064     definition.className = "Type";
2065     definition.staticValues = Type_staticValues;
2066     definition.staticFunctions = Type_staticFunctions;
2067     definition.callAsFunction = &Type_callAsFunction;
2068     definition.callAsConstructor = &Type_callAsConstructor;
2069     definition.finalize = &CYFinalize;
2070     Type_privateData::Class_ = JSClassCreate(&definition);
2071
2072     definition = kJSClassDefinitionEmpty;
2073     definition.className = "Global";
2074     //definition.getProperty = &Global_getProperty;
2075     Global_ = JSClassCreate(&definition);
2076
2077     Array_s = JSStringCreateWithUTF8CString("Array");
2078     constructor_s = JSStringCreateWithUTF8CString("constructor");
2079     cy_s = JSStringCreateWithUTF8CString("$cy");
2080     cyi_s = JSStringCreateWithUTF8CString("$cyi");
2081     cyt_s = JSStringCreateWithUTF8CString("$cyt");
2082     length_s = JSStringCreateWithUTF8CString("length");
2083     message_s = JSStringCreateWithUTF8CString("message");
2084     name_s = JSStringCreateWithUTF8CString("name");
2085     pop_s = JSStringCreateWithUTF8CString("pop");
2086     prototype_s = JSStringCreateWithUTF8CString("prototype");
2087     push_s = JSStringCreateWithUTF8CString("push");
2088     splice_s = JSStringCreateWithUTF8CString("splice");
2089     toCYON_s = JSStringCreateWithUTF8CString("toCYON");
2090     toJSON_s = JSStringCreateWithUTF8CString("toJSON");
2091     toPointer_s = JSStringCreateWithUTF8CString("toPointer");
2092     toString_s = JSStringCreateWithUTF8CString("toString");
2093     weak_s = JSStringCreateWithUTF8CString("weak");
2094
2095     Result_ = JSStringCreateWithUTF8CString("_");
2096
2097     for (CYHook *hook : GetHooks())
2098         if (hook->Initialize != NULL)
2099             (*hook->Initialize)();
2100 }
2101
2102 void CYThrow(JSContextRef context, JSValueRef value) {
2103     if (value != NULL)
2104         throw CYJSError(context, value);
2105 }
2106
2107 const char *CYJSError::PoolCString(CYPool &pool) const {
2108     std::set<void *> objects;
2109     // XXX: this used to be CYPoolCString
2110     return CYPoolCCYON(pool, context_, value_, objects);
2111 }
2112
2113 JSValueRef CYJSError::CastJSValue(JSContextRef context, const char *name) const {
2114     // XXX: what if the context is different? or the name? I dunno. ("epic" :/)
2115     return value_;
2116 }
2117
2118 JSValueRef CYCastJSError(JSContextRef context, const char *name, const char *message) {
2119     JSObjectRef Error(CYGetCachedObject(context, CYJSString(name)));
2120     JSValueRef arguments[1] = {CYCastJSValue(context, message)};
2121     return _jsccall(JSObjectCallAsConstructor, context, Error, 1, arguments);
2122 }
2123
2124 JSValueRef CYPoolError::CastJSValue(JSContextRef context, const char *name) const {
2125     return CYCastJSError(context, name, message_);
2126 }
2127
2128 CYJSError::CYJSError(JSContextRef context, const char *format, ...) {
2129     _assert(context != NULL);
2130
2131     CYPool pool;
2132
2133     va_list args;
2134     va_start(args, format);
2135     // XXX: there might be a beter way to think about this
2136     const char *message(pool.vsprintf(64, format, args));
2137     va_end(args);
2138
2139     value_ = CYCastJSError(context, "Error", message);
2140 }
2141
2142 JSGlobalContextRef CYGetJSContext(JSContextRef context) {
2143     return reinterpret_cast<Context *>(JSObjectGetPrivate(CYCastJSObject(context, CYGetProperty(context, CYGetGlobalObject(context), cy_s))))->context_;
2144 }
2145
2146 #ifdef __ANDROID__
2147 char *CYPoolLibraryPath_(CYPool &pool) {
2148     FILE *maps(fopen("/proc/self/maps", "r"));
2149     struct F { FILE *f; F(FILE *f) : f(f) {}
2150         ~F() { fclose(f); } } f(maps);
2151
2152     size_t function(reinterpret_cast<size_t>(&CYPoolLibraryPath));
2153
2154     for (;;) {
2155         size_t start; size_t end; char flags[8]; unsigned long long offset;
2156         int major; int minor; unsigned long long inode; char file[1024];
2157         int count(fscanf(maps, "%zx-%zx %7s %llx %x:%x %llu%[ ]%1024[^\n]\n",
2158             &start, &end, flags, &offset, &major, &minor, &inode, file, file));
2159         if (count < 8) break; else if (start <= function && function < end)
2160             return pool.strdup(file);
2161     }
2162
2163     _assert(false);
2164 }
2165 #else
2166 char *CYPoolLibraryPath_(CYPool &pool) {
2167     Dl_info addr;
2168     _assert(dladdr(reinterpret_cast<void *>(&CYPoolLibraryPath), &addr) != 0);
2169     return pool.strdup(addr.dli_fname);
2170 }
2171 #endif
2172
2173 const char *CYPoolLibraryPath(CYPool &pool) {
2174     char *lib(CYPoolLibraryPath_(pool));
2175
2176     char *slash(strrchr(lib, '/'));
2177     if (slash == NULL)
2178         return ".";
2179     *slash = '\0';
2180
2181     slash = strrchr(lib, '/');
2182     if (slash != NULL) {
2183         if (strcmp(slash, "/.libs") == 0)
2184             *slash = '\0';
2185     } else if (strcmp(lib, ".libs") == 0)
2186         return ".";
2187
2188     return lib;
2189 }
2190
2191 static JSValueRef require_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
2192     _assert(count == 1);
2193     CYPool pool;
2194
2195     const char *name(CYPoolCString(pool, context, arguments[0]));
2196     if (strchr(name, '/') == NULL && (
2197 #ifdef __APPLE__
2198         dlopen(pool.strcat("/System/Library/Frameworks/", name, ".framework/", name, NULL), RTLD_LAZY | RTLD_GLOBAL) != NULL ||
2199         dlopen(pool.strcat("/System/Library/PrivateFrameworks/", name, ".framework/", name, NULL), RTLD_LAZY | RTLD_GLOBAL) != NULL ||
2200 #endif
2201     false))
2202         return CYJSUndefined(context);
2203
2204     JSObjectRef resolve(CYCastJSObject(context, CYGetProperty(context, object, CYJSString("resolve"))));
2205     CYJSString path(context, CYCallAsFunction(context, resolve, NULL, 1, arguments));
2206
2207     CYJSString property("exports");
2208
2209     JSObjectRef modules(CYGetCachedObject(context, CYJSString("modules")));
2210     JSValueRef cache(CYGetProperty(context, modules, path));
2211
2212     JSValueRef result;
2213     if (!JSValueIsUndefined(context, cache)) {
2214         JSObjectRef module(CYCastJSObject(context, cache));
2215         result = CYGetProperty(context, module, property);
2216     } else {
2217         CYUTF8String code(CYPoolFileUTF8String(pool, CYPoolCString(pool, context, path)));
2218         _assert(code.data != NULL);
2219
2220         size_t length(strlen(name));
2221         if (length >= 5 && strcmp(name + length - 5, ".json") == 0) {
2222             JSObjectRef JSON(CYGetCachedObject(context, CYJSString("JSON")));
2223             JSObjectRef parse(CYCastJSObject(context, CYGetProperty(context, JSON, CYJSString("parse"))));
2224             JSValueRef arguments[1] = { CYCastJSValue(context, CYJSString(code)) };
2225             result = CYCallAsFunction(context, parse, JSON, 1, arguments);
2226         } else {
2227             JSObjectRef module(JSObjectMake(context, NULL, NULL));
2228             CYSetProperty(context, modules, path, module);
2229
2230             JSObjectRef exports(JSObjectMake(context, NULL, NULL));
2231             CYSetProperty(context, module, property, exports);
2232
2233             std::stringstream wrap;
2234             wrap << "(function (exports, require, module, __filename) { " << code << "\n});";
2235             code = CYPoolCode(pool, *wrap.rdbuf());
2236
2237             JSValueRef value(_jsccall(JSEvaluateScript, context, CYJSString(code), NULL, NULL, 0));
2238             JSObjectRef function(CYCastJSObject(context, value));
2239
2240             JSValueRef arguments[4] = { exports, object, module, CYCastJSValue(context, path) };
2241             CYCallAsFunction(context, function, NULL, 4, arguments);
2242             result = CYGetProperty(context, module, property);
2243         }
2244     }
2245
2246     return result;
2247 } CYCatch(NULL) }
2248
2249 static bool CYRunScript(JSGlobalContextRef context, const char *path) {
2250     CYPool pool;
2251     CYUTF8String code(CYPoolFileUTF8String(pool, pool.strcat(CYPoolLibraryPath(pool), path, NULL)));
2252     if (code.data == NULL)
2253         return false;
2254
2255     code = CYPoolCode(pool, code);
2256     _jsccall(JSEvaluateScript, context, CYJSString(code), NULL, NULL, 0);
2257     return true;
2258 }
2259
2260 extern "C" void CYDestroyWeak(JSWeakObjectMapRef weak, void *data) {
2261 }
2262
2263 extern "C" void CYSetupContext(JSGlobalContextRef context) {
2264     CYInitializeDynamic();
2265
2266     JSObjectRef global(CYGetGlobalObject(context));
2267
2268     JSObjectRef cy(Context::Make(context, context));
2269     CYSetProperty(context, global, cy_s, cy, kJSPropertyAttributeDontEnum);
2270
2271 /* Cache Globals {{{ */
2272     JSObjectRef Array(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Array"))));
2273     CYSetProperty(context, cy, CYJSString("Array"), Array);
2274
2275     JSObjectRef Array_prototype(CYCastJSObject(context, CYGetProperty(context, Array, prototype_s)));
2276     CYSetProperty(context, cy, CYJSString("Array_prototype"), Array_prototype);
2277
2278     JSObjectRef Boolean(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Boolean"))));
2279     CYSetProperty(context, cy, CYJSString("Boolean"), Boolean);
2280
2281     JSObjectRef Boolean_prototype(CYCastJSObject(context, CYGetProperty(context, Boolean, prototype_s)));
2282     CYSetProperty(context, cy, CYJSString("Boolean_prototype"), Boolean_prototype);
2283
2284     JSObjectRef Error(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Error"))));
2285     CYSetProperty(context, cy, CYJSString("Error"), Error);
2286
2287     JSObjectRef Function(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Function"))));
2288     CYSetProperty(context, cy, CYJSString("Function"), Function);
2289
2290     JSObjectRef Function_prototype(CYCastJSObject(context, CYGetProperty(context, Function, prototype_s)));
2291     CYSetProperty(context, cy, CYJSString("Function_prototype"), Function_prototype);
2292
2293     JSObjectRef JSON(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("JSON"))));
2294     CYSetProperty(context, cy, CYJSString("JSON"), JSON);
2295
2296     JSObjectRef Number(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Number"))));
2297     CYSetProperty(context, cy, CYJSString("Number"), Number);
2298
2299     JSObjectRef Number_prototype(CYCastJSObject(context, CYGetProperty(context, Number, prototype_s)));
2300     CYSetProperty(context, cy, CYJSString("Number_prototype"), Number_prototype);
2301
2302     JSObjectRef Object(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Object"))));
2303     CYSetProperty(context, cy, CYJSString("Object"), Object);
2304
2305     JSObjectRef Object_prototype(CYCastJSObject(context, CYGetProperty(context, Object, prototype_s)));
2306     CYSetProperty(context, cy, CYJSString("Object_prototype"), Object_prototype);
2307
2308     JSObjectRef String(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("String"))));
2309     CYSetProperty(context, cy, CYJSString("String"), String);
2310
2311     JSObjectRef String_prototype(CYCastJSObject(context, CYGetProperty(context, String, prototype_s)));
2312     CYSetProperty(context, cy, CYJSString("String_prototype"), String_prototype);
2313
2314     JSObjectRef SyntaxError(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("SyntaxError"))));
2315     CYSetProperty(context, cy, CYJSString("SyntaxError"), SyntaxError);
2316 /* }}} */
2317
2318     CYSetProperty(context, Array_prototype, toCYON_s, &Array_callAsFunction_toCYON, kJSPropertyAttributeDontEnum);
2319     CYSetProperty(context, String_prototype, toCYON_s, &String_callAsFunction_toCYON, kJSPropertyAttributeDontEnum);
2320
2321     JSObjectRef cycript(JSObjectMake(context, NULL, NULL));
2322     CYSetProperty(context, global, CYJSString("Cycript"), cycript);
2323     CYSetProperty(context, cycript, CYJSString("compile"), &Cycript_compile_callAsFunction);
2324     CYSetProperty(context, cycript, CYJSString("gc"), &Cycript_gc_callAsFunction);
2325
2326     JSObjectRef CArray(JSObjectMakeConstructor(context, CArray::Class_, &CArray_new));
2327     CYSetPrototype(context, CYCastJSObject(context, CYGetProperty(context, CArray, prototype_s)), Array_prototype);
2328     CYSetProperty(context, cycript, CYJSString("CArray"), CArray);
2329
2330     JSObjectRef CString(JSObjectMakeConstructor(context, CString::Class_, &CString_new));
2331     CYSetPrototype(context, CYCastJSObject(context, CYGetProperty(context, CString, prototype_s)), String_prototype);
2332     CYSetProperty(context, cycript, CYJSString("CString"), CString);
2333
2334     JSObjectRef Functor(JSObjectMakeConstructor(context, Functor_, &Functor_new));
2335     CYSetPrototype(context, CYCastJSObject(context, CYGetProperty(context, Functor, prototype_s)), Function_prototype);
2336     CYSetProperty(context, cycript, CYJSString("Functor"), Functor);
2337
2338     CYSetProperty(context, cycript, CYJSString("Pointer"), JSObjectMakeConstructor(context, Pointer::Class_, &Pointer_new));
2339     CYSetProperty(context, cycript, CYJSString("Type"), JSObjectMakeConstructor(context, Type_privateData::Class_, &Type_new));
2340
2341     JSObjectRef modules(JSObjectMake(context, NULL, NULL));
2342     CYSetProperty(context, cy, CYJSString("modules"), modules);
2343
2344     JSObjectRef all(JSObjectMake(context, All_, NULL));
2345     CYSetProperty(context, cycript, CYJSString("all"), all);
2346
2347     JSObjectRef cache(JSObjectMake(context, NULL, NULL));
2348     CYSetProperty(context, cy, CYJSString("cache"), cache);
2349     CYSetPrototype(context, cache, all);
2350
2351     JSObjectRef alls(_jsccall(JSObjectCallAsConstructor, context, Array, 0, NULL));
2352     CYSetProperty(context, cycript, CYJSString("alls"), alls);
2353
2354     if (true) {
2355         JSObjectRef last(NULL), curr(global);
2356
2357         goto next; for (JSValueRef next;;) {
2358             if (JSValueIsNull(context, next))
2359                 break;
2360             last = curr;
2361             curr = CYCastJSObject(context, next);
2362           next:
2363             next = JSObjectGetPrototype(context, curr);
2364         }
2365
2366         CYSetPrototype(context, last, cache);
2367     }
2368
2369     JSObjectRef System(JSObjectMake(context, NULL, NULL));
2370     CYSetProperty(context, cy, CYJSString("System"), System);
2371
2372     CYSetProperty(context, global, CYJSString("require"), &require_callAsFunction, kJSPropertyAttributeDontEnum);
2373
2374     CYSetProperty(context, global, CYJSString("system"), System);
2375     CYSetProperty(context, System, CYJSString("args"), CYJSNull(context));
2376     CYSetProperty(context, System, CYJSString("print"), &System_print);
2377
2378     CYSetProperty(context, global, CYJSString("global"), global);
2379
2380 #ifdef __APPLE__
2381     if (&JSWeakObjectMapCreate != NULL) {
2382         JSWeakObjectMapRef weak(JSWeakObjectMapCreate(context, NULL, &CYDestroyWeak));
2383         CYSetProperty(context, cy, weak_s, CYCastJSValue(context, reinterpret_cast<uintptr_t>(weak)));
2384     }
2385 #endif
2386
2387     CYSetProperty(context, String_prototype, cyt_s, CYMakeType(context, sig::String()), kJSPropertyAttributeDontEnum);
2388
2389     CYSetProperty(context, cache, CYJSString("dlerror"), CYMakeFunctor(context, "dlerror", "*"), kJSPropertyAttributeDontEnum);
2390     CYSetProperty(context, cache, CYJSString("RTLD_DEFAULT"), CYCastJSValue(context, reinterpret_cast<intptr_t>(RTLD_DEFAULT)), kJSPropertyAttributeDontEnum);
2391     CYSetProperty(context, cache, CYJSString("dlsym"), CYMakeFunctor(context, "dlsym", "^v^v*"), kJSPropertyAttributeDontEnum);
2392
2393     CYSetProperty(context, cache, CYJSString("NULL"), CYJSNull(context), kJSPropertyAttributeDontEnum);
2394
2395     CYSetProperty(context, cache, CYJSString("bool"), CYMakeType(context, sig::Primitive<bool>()), kJSPropertyAttributeDontEnum);
2396     CYSetProperty(context, cache, CYJSString("char"), CYMakeType(context, sig::Primitive<char>()), kJSPropertyAttributeDontEnum);
2397     CYSetProperty(context, cache, CYJSString("schar"), CYMakeType(context, sig::Primitive<signed char>()), kJSPropertyAttributeDontEnum);
2398     CYSetProperty(context, cache, CYJSString("uchar"), CYMakeType(context, sig::Primitive<unsigned char>()), kJSPropertyAttributeDontEnum);
2399
2400     CYSetProperty(context, cache, CYJSString("short"), CYMakeType(context, sig::Primitive<short>()), kJSPropertyAttributeDontEnum);
2401     CYSetProperty(context, cache, CYJSString("int"), CYMakeType(context, sig::Primitive<int>()), kJSPropertyAttributeDontEnum);
2402     CYSetProperty(context, cache, CYJSString("long"), CYMakeType(context, sig::Primitive<long>()), kJSPropertyAttributeDontEnum);
2403     CYSetProperty(context, cache, CYJSString("longlong"), CYMakeType(context, sig::Primitive<long long>()), kJSPropertyAttributeDontEnum);
2404
2405     CYSetProperty(context, cache, CYJSString("ushort"), CYMakeType(context, sig::Primitive<unsigned short>()), kJSPropertyAttributeDontEnum);
2406     CYSetProperty(context, cache, CYJSString("uint"), CYMakeType(context, sig::Primitive<unsigned int>()), kJSPropertyAttributeDontEnum);
2407     CYSetProperty(context, cache, CYJSString("ulong"), CYMakeType(context, sig::Primitive<unsigned long>()), kJSPropertyAttributeDontEnum);
2408     CYSetProperty(context, cache, CYJSString("ulonglong"), CYMakeType(context, sig::Primitive<unsigned long long>()), kJSPropertyAttributeDontEnum);
2409
2410 #ifdef __SIZEOF_INT128__
2411     CYSetProperty(context, cache, CYJSString("int128"), CYMakeType(context, sig::Primitive<__int128>()), kJSPropertyAttributeDontEnum);
2412     CYSetProperty(context, cache, CYJSString("uint128"), CYMakeType(context, sig::Primitive<unsigned __int128>()), kJSPropertyAttributeDontEnum);
2413 #endif
2414
2415     CYSetProperty(context, cache, CYJSString("float"), CYMakeType(context, sig::Primitive<float>()), kJSPropertyAttributeDontEnum);
2416     CYSetProperty(context, cache, CYJSString("double"), CYMakeType(context, sig::Primitive<double>()), kJSPropertyAttributeDontEnum);
2417
2418     for (CYHook *hook : GetHooks())
2419         if (hook->SetupContext != NULL)
2420             (*hook->SetupContext)(context);
2421
2422     CYArrayPush(context, alls, cycript);
2423
2424     CYRunScript(context, "/libcycript.cy");
2425 }
2426
2427 static JSGlobalContextRef context_;
2428
2429 _visible JSGlobalContextRef CYGetJSContext() {
2430     CYInitializeDynamic();
2431
2432     if (context_ == NULL) {
2433         context_ = JSGlobalContextCreate(Global_);
2434         CYSetupContext(context_);
2435     }
2436
2437     return context_;
2438 }
2439
2440 _visible void CYDestroyContext() {
2441     if (context_ == NULL)
2442         return;
2443     JSGlobalContextRelease(context_);
2444     context_ = NULL;
2445 }