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 Enum::PoolFFI(CYPool *pool, JSContextRef context, ffi_type *ffi, void *data, JSValueRef value) const {
 775     return type.PoolFFI(pool, context, ffi, data, value);
 776 }
 777
 778 void Aggregate::PoolFFI(CYPool *pool, JSContextRef context, ffi_type *ffi, void *data, JSValueRef value) const {
 779     _assert(!overlap);
 780
 781     size_t offset(0);
 782     uint8_t *base(reinterpret_cast<uint8_t *>(data));
 783     JSObjectRef aggregate(JSValueIsObject(context, value) ? (JSObjectRef) value : NULL);
 784     for (size_t index(0); index != signature.count; ++index) {
 785         sig::Element *element(&signature.elements[index]);
 786         ffi_type *field(ffi->elements[index]);
 787
 788         JSValueRef rhs;
 789         if (aggregate == NULL)
 790             rhs = value;
 791         else {
 792             rhs = CYGetProperty(context, aggregate, index);
 793             if (JSValueIsUndefined(context, rhs)) {
 794                 if (element->name != NULL)
 795                     rhs = CYGetProperty(context, aggregate, CYJSString(element->name));
 796                 else
 797                     goto undefined;
 798                 if (JSValueIsUndefined(context, rhs)) undefined:
 799                     throw CYJSError(context, "unable to extract structure value");
 800             }
 801         }
 802
 803         element->type->PoolFFI(pool, context, field, base + offset, rhs);
 804         offset += field->size;
 805         CYAlign(offset, field->alignment);
 806     }
 807 }
 808
 809 void Function::PoolFFI(CYPool *pool, JSContextRef context, ffi_type *ffi, void *data, JSValueRef value) const {
 810     _assert(false);
 811 }
 812
 813 #define CYFromFFI_(Type_) \
 814 template <> \
 815 JSValueRef Primitive<Type_>::FromFFI(JSContextRef context, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) const { \
 816     return CYCastJSValue(context, *reinterpret_cast<Type_ *>(data)); \
 817 }
 818
 819 CYFromFFI_(bool)
 820 CYFromFFI_(char)
 821 CYFromFFI_(double)
 822 CYFromFFI_(float)
 823 CYFromFFI_(signed char)
 824 CYFromFFI_(signed int)
 825 CYFromFFI_(signed long int)
 826 CYFromFFI_(signed long long int)
 827 CYFromFFI_(signed short int)
 828 CYFromFFI_(unsigned char)
 829 CYFromFFI_(unsigned int)
 830 CYFromFFI_(unsigned long int)
 831 CYFromFFI_(unsigned long long int)
 832 CYFromFFI_(unsigned short int)
 833
 834 #ifdef __SIZEOF_INT128__
 835 CYFromFFI_(signed __int128)
 836 CYFromFFI_(unsigned __int128)
 837 #endif
 838
 839 JSValueRef Void::FromFFI(JSContextRef context, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) const {
 840     return CYJSUndefined(context);
 841 }
 842
 843 JSValueRef Unknown::FromFFI(JSContextRef context, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) const {
 844     _assert(false);
 845 }
 846
 847 JSValueRef String::FromFFI(JSContextRef context, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) const {
 848     if (char *value = *reinterpret_cast<char **>(data))
 849         return CString::Make(context, value, context, owner);
 850     return CYJSNull(context);
 851 }
 852
 853 JSValueRef Bits::FromFFI(JSContextRef context, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) const {
 854     _assert(false);
 855 }
 856
 857 JSValueRef Pointer::FromFFI(JSContextRef context, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) const {
 858     if (void *value = *reinterpret_cast<void **>(data))
 859         return CYMakePointer(context, value, type, NULL, owner);
 860     return CYJSNull(context);
 861 }
 862
 863 JSValueRef Array::FromFFI(JSContextRef context, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) const {
 864     return CArray::Make(context, data, size, type, ffi->elements[0], context, owner);
 865 }
 866
 867 JSValueRef Enum::FromFFI(JSContextRef context, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) const {
 868     return type.FromFFI(context, ffi, data, initialize, owner);
 869 }
 870
 871 JSValueRef Aggregate::FromFFI(JSContextRef context, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) const {
 872     return Struct_privateData::Make(context, data, *this, ffi, context, owner);
 873 }
 874
 875 JSValueRef Function::FromFFI(JSContextRef context, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) const {
 876     return CYMakeFunctor(context, reinterpret_cast<void (*)()>(data), variadic, signature);
 877 }
 878
 879 }
 880
 881 void CYExecuteClosure(ffi_cif *cif, void *result, void **arguments, void *arg) {
 882     Closure_privateData *internal(reinterpret_cast<Closure_privateData *>(arg));
 883
 884     JSContextRef context(internal->function_);
 885
 886     size_t count(internal->cif_.nargs);
 887     JSValueRef values[count];
 888
 889     for (size_t index(0); index != count; ++index)
 890         values[index] = internal->signature_.elements[1 + index].type->FromFFI(context, internal->cif_.arg_types[index], arguments[index]);
 891
 892     JSValueRef value(internal->adapter_(context, count, values, internal->function_));
 893     if (internal->cif_.rtype != &ffi_type_void)
 894         internal->signature_.elements[0].type->PoolFFI(NULL, context, internal->cif_.rtype, result, value);
 895 }
 896
 897 static JSValueRef FunctionAdapter_(JSContextRef context, size_t count, JSValueRef values[], JSObjectRef function) {
 898     return CYCallAsFunction(context, function, NULL, count, values);
 899 }
 900
 901 #if defined(__APPLE__) && (defined(__arm__) || defined(__arm64__))
 902 static void CYFreeFunctor(void *data) {
 903     ffi_closure_free(data);
 904 }
 905 #else
 906 static void CYFreeFunctor(void *data) {
 907     _syscall(munmap(data, sizeof(ffi_closure)));
 908 }
 909 #endif
 910
 911 Closure_privateData *CYMakeFunctor_(JSContextRef context, JSObjectRef function, const sig::Signature &signature, JSValueRef (*adapter)(JSContextRef, size_t, JSValueRef[], JSObjectRef)) {
 912     // XXX: in case of exceptions this will leak
 913     Closure_privateData *internal(new Closure_privateData(context, function, adapter, signature));
 914
 915 #if defined(__APPLE__) && (defined(__arm__) || defined(__arm64__))
 916     void *executable;
 917     ffi_closure *writable(reinterpret_cast<ffi_closure *>(ffi_closure_alloc(sizeof(ffi_closure), &executable)));
 918
 919     ffi_status status(ffi_prep_closure_loc(writable, &internal->cif_, &CYExecuteClosure, internal, executable));
 920     _assert(status == FFI_OK);
 921
 922     internal->pool_->atexit(&CYFreeFunctor, writable);
 923     internal->value_ = reinterpret_cast<void (*)()>(executable);
 924 #else
 925     ffi_closure *closure((ffi_closure *) _syscall(mmap(
 926         NULL, sizeof(ffi_closure),
 927         PROT_READ | PROT_WRITE, MAP_ANON | MAP_PRIVATE,
 928         -1, 0
 929     )));
 930
 931     ffi_status status(ffi_prep_closure(closure, &internal->cif_, &CYExecuteClosure, internal));
 932     _assert(status == FFI_OK);
 933
 934     _syscall(mprotect(closure, sizeof(*closure), PROT_READ | PROT_EXEC));
 935
 936     internal->pool_->atexit(&CYFreeFunctor, closure);
 937     internal->value_ = reinterpret_cast<void (*)()>(closure);
 938 #endif
 939
 940     return internal;
 941 }
 942
 943 static JSObjectRef CYMakeFunctor(JSContextRef context, JSObjectRef function, const sig::Signature &signature) {
 944     Closure_privateData *internal(CYMakeFunctor_(context, function, signature, &FunctionAdapter_));
 945     JSObjectRef object(JSObjectMake(context, Functor_, internal));
 946     // XXX: see above notes about needing to leak
 947     JSValueProtect(CYGetJSContext(context), object);
 948     return object;
 949 }
 950
 951 JSValueRef CYGetCachedValue(JSContextRef context, JSStringRef name) {
 952     return CYGetProperty(context, CYCastJSObject(context, CYGetProperty(context, CYGetGlobalObject(context), cy_s)), name);
 953 }
 954
 955 JSObjectRef CYGetCachedObject(JSContextRef context, JSStringRef name) {
 956     return CYCastJSObject(context, CYGetCachedValue(context, name));
 957 }
 958
 959 static JSObjectRef CYMakeFunctor(JSContextRef context, JSValueRef value, bool variadic, const sig::Signature &signature) {
 960     JSObjectRef Function(CYGetCachedObject(context, CYJSString("Function")));
 961
 962     bool function(_jsccall(JSValueIsInstanceOfConstructor, context, value, Function));
 963     if (function) {
 964         JSObjectRef function(CYCastJSObject(context, value));
 965         return CYMakeFunctor(context, function, signature);
 966     } else {
 967         void (*function)()(CYCastPointer<void (*)()>(context, value));
 968         return CYMakeFunctor(context, function, variadic, signature);
 969     }
 970 }
 971
 972 static JSValueRef CString_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
 973     CYPool pool;
 974     CString *internal(reinterpret_cast<CString *>(JSObjectGetPrivate(object)));
 975
 976     ssize_t offset;
 977     if (!CYGetOffset(pool, context, property, offset))
 978         return NULL;
 979
 980     return CYCastJSValue(context, CYJSString(CYUTF8String(&internal->value_[offset], 1)));
 981 } CYCatch(NULL) }
 982
 983 static bool CString_setProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef value, JSValueRef *exception) { CYTry {
 984     CYPool pool;
 985     CString *internal(reinterpret_cast<CString *>(JSObjectGetPrivate(object)));
 986
 987     ssize_t offset;
 988     if (!CYGetOffset(pool, context, property, offset))
 989         return false;
 990
 991     const char *data(CYPoolCString(pool, context, value));
 992     internal->value_[offset] = *data;
 993     return true;
 994 } CYCatch(false) }
 995
 996 static bool Index_(CYPool &pool, JSContextRef context, Struct_privateData *internal, JSStringRef property, ssize_t &index, uint8_t *&base) {
 997     Type_privateData *typical(internal->type_);
 998     sig::Aggregate *type(static_cast<sig::Aggregate *>(typical->type_));
 999     if (type == NULL)
1000         return false;
1001
1002     const char *name(CYPoolCString(pool, context, property));
1003     size_t length(strlen(name));
1004     double number(CYCastDouble(name, length));
1005
1006     size_t count(type->signature.count);
1007
1008     if (std::isnan(number)) {
1009         if (property == NULL)
1010             return false;
1011
1012         sig::Element *elements(type->signature.elements);
1013
1014         for (size_t local(0); local != count; ++local) {
1015             sig::Element *element(&elements[local]);
1016             if (element->name != NULL && strcmp(name, element->name) == 0) {
1017                 index = local;
1018                 goto base;
1019             }
1020         }
1021
1022         return false;
1023     } else {
1024         index = static_cast<ssize_t>(number);
1025         if (index != number || index < 0 || static_cast<size_t>(index) >= count)
1026             return false;
1027     }
1028
1029   base:
1030     ffi_type **elements(typical->GetFFI()->elements);
1031
1032     size_t offset(0);
1033     for (ssize_t local(0); local != index; ++local) {
1034         offset += elements[local]->size;
1035         CYAlign(offset, elements[local + 1]->alignment);
1036     }
1037
1038     base = reinterpret_cast<uint8_t *>(internal->value_) + offset;
1039     return true;
1040 }
1041
1042 static void *Offset_(CYPool &pool, JSContextRef context, JSStringRef property, void *data, ffi_type *ffi) {
1043     ssize_t offset;
1044     if (JSStringIsEqualToUTF8CString(property, "$cyi"))
1045         offset = 0;
1046     else if (!CYGetOffset(pool, context, property, offset))
1047         return NULL;
1048     return reinterpret_cast<uint8_t *>(data) + ffi->size * offset;
1049 }
1050
1051 static JSValueRef Offset_getProperty(CYPool &pool, JSContextRef context, JSStringRef property, void *data, Type_privateData *typical, JSObjectRef owner) {
1052     ffi_type *ffi(typical->GetFFI());
1053     void *base(Offset_(pool, context, property, data, ffi));
1054     if (base == NULL)
1055         return NULL;
1056     return typical->type_->FromFFI(context, ffi, base, false, owner);
1057 }
1058
1059 static bool Offset_setProperty(CYPool &pool, JSContextRef context, JSStringRef property, void *data, Type_privateData *typical, JSValueRef value) {
1060     ffi_type *ffi(typical->GetFFI());
1061     void *base(Offset_(pool, context, property, data, ffi));
1062     if (base == NULL)
1063         return false;
1064
1065     typical->type_->PoolFFI(NULL, context, ffi, base, value);
1066     return true;
1067 }
1068
1069 static JSValueRef CArray_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1070     CYPool pool;
1071     CArray *internal(reinterpret_cast<CArray *>(JSObjectGetPrivate(object)));
1072     if (JSStringIsEqual(property, length_s))
1073         return CYCastJSValue(context, internal->length_);
1074     Type_privateData *typical(internal->type_);
1075     JSObjectRef owner(internal->owner_ ?: object);
1076     return Offset_getProperty(pool, context, property, internal->value_, typical, owner);
1077 } CYCatch(NULL) }
1078
1079 static bool CArray_setProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef value, JSValueRef *exception) { CYTry {
1080     CYPool pool;
1081     Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(object)));
1082     Type_privateData *typical(internal->type_);
1083     return Offset_setProperty(pool, context, property, internal->value_, typical, value);
1084 } CYCatch(false) }
1085
1086 static JSValueRef Pointer_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1087     CYPool pool;
1088     Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(object)));
1089
1090     Type_privateData *typical(internal->type_);
1091
1092     if (sig::Function *function = dynamic_cast<sig::Function *>(typical->type_)) {
1093         if (!JSStringIsEqualToUTF8CString(property, "$cyi"))
1094             return NULL;
1095         return CYMakeFunctor(context, reinterpret_cast<void (*)()>(internal->value_), function->variadic, function->signature);
1096     }
1097
1098     JSObjectRef owner(internal->owner_ ?: object);
1099     return Offset_getProperty(pool, context, property, internal->value_, typical, owner);
1100 } CYCatch(NULL) }
1101
1102 static bool Pointer_setProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef value, JSValueRef *exception) { CYTry {
1103     CYPool pool;
1104     Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(object)));
1105     Type_privateData *typical(internal->type_);
1106     return Offset_setProperty(pool, context, property, internal->value_, typical, value);
1107 } CYCatch(false) }
1108
1109 static JSValueRef Struct_callAsFunction_$cya(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1110     Struct_privateData *internal(reinterpret_cast<Struct_privateData *>(JSObjectGetPrivate(_this)));
1111     Type_privateData *typical(internal->type_);
1112     return CYMakePointer(context, internal->value_, *typical->type_, typical->ffi_, _this);
1113 } CYCatch(NULL) }
1114
1115 static JSValueRef Struct_getProperty_$cyt(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1116     Struct_privateData *internal(reinterpret_cast<Struct_privateData *>(JSObjectGetPrivate(object)));
1117     return CYMakeType(context, *internal->type_->type_);
1118 } CYCatch(NULL) }
1119
1120 static JSValueRef Struct_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1121     CYPool pool;
1122     Struct_privateData *internal(reinterpret_cast<Struct_privateData *>(JSObjectGetPrivate(object)));
1123     Type_privateData *typical(internal->type_);
1124     sig::Aggregate *type(static_cast<sig::Aggregate *>(typical->type_));
1125
1126     ssize_t index;
1127     uint8_t *base;
1128
1129     if (!Index_(pool, context, internal, property, index, base))
1130         return NULL;
1131
1132     JSObjectRef owner(internal->owner_ ?: object);
1133
1134     return type->signature.elements[index].type->FromFFI(context, typical->GetFFI()->elements[index], base, false, owner);
1135 } CYCatch(NULL) }
1136
1137 static bool Struct_setProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef value, JSValueRef *exception) { CYTry {
1138     CYPool pool;
1139     Struct_privateData *internal(reinterpret_cast<Struct_privateData *>(JSObjectGetPrivate(object)));
1140     Type_privateData *typical(internal->type_);
1141     sig::Aggregate *type(static_cast<sig::Aggregate *>(typical->type_));
1142
1143     ssize_t index;
1144     uint8_t *base;
1145
1146     if (!Index_(pool, context, internal, property, index, base))
1147         return false;
1148
1149     type->signature.elements[index].type->PoolFFI(NULL, context, typical->GetFFI()->elements[index], base, value);
1150     return true;
1151 } CYCatch(false) }
1152
1153 static void Struct_getPropertyNames(JSContextRef context, JSObjectRef object, JSPropertyNameAccumulatorRef names) {
1154     Struct_privateData *internal(reinterpret_cast<Struct_privateData *>(JSObjectGetPrivate(object)));
1155     Type_privateData *typical(internal->type_);
1156     sig::Aggregate *type(static_cast<sig::Aggregate *>(typical->type_));
1157
1158     if (type == NULL)
1159         return;
1160
1161     size_t count(type->signature.count);
1162     sig::Element *elements(type->signature.elements);
1163
1164     char number[32];
1165
1166     for (size_t index(0); index != count; ++index) {
1167         const char *name;
1168         name = elements[index].name;
1169
1170         if (name == NULL) {
1171             sprintf(number, "%zu", index);
1172             name = number;
1173         }
1174
1175         JSPropertyNameAccumulatorAddName(names, CYJSString(name));
1176     }
1177 }
1178
1179 static sig::Void Void_;
1180 static sig::Pointer PointerToVoid_(Void_);
1181
1182 static sig::Type *CYGetType(CYPool &pool, JSContextRef context, JSValueRef value) {
1183     if (JSValueIsNull(context, value))
1184         return &PointerToVoid_;
1185     JSObjectRef object(CYCastJSObject(context, value));
1186     JSObjectRef type(CYCastJSObject(context, CYGetProperty(context, object, cyt_s)));
1187     _assert(JSValueIsObjectOfClass(context, type, Type_privateData::Class_));
1188     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(type)));
1189     return internal->type_;
1190 }
1191
1192 void CYCallFunction(CYPool &pool, JSContextRef context, ffi_cif *cif, void (*function)(), void *value, void **values) {
1193     ffi_call(cif, function, value, values);
1194 }
1195
1196 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)()) {
1197     size_t have(setups + count);
1198     size_t need(signature.count - 1);
1199
1200     if (have < need)
1201         throw CYJSError(context, "insufficient number of arguments to ffi function");
1202
1203     ffi_cif corrected;
1204     sig::Element *elements(signature.elements);
1205
1206     if (have > need) {
1207         if (!variadic)
1208             throw CYJSError(context, "exorbitant number of arguments to ffi function");
1209
1210         elements = new (pool) sig::Element[have + 1];
1211         memcpy(elements, signature.elements, sizeof(sig::Element) * (need + 1));
1212
1213         for (size_t index(need); index != have; ++index) {
1214             sig::Element &element(elements[index + 1]);
1215             element.name = NULL;
1216             element.offset = _not(size_t);
1217             element.type = CYGetType(pool, context, arguments[index - setups]);
1218         }
1219
1220         sig::Signature extended;
1221         extended.elements = elements;
1222         extended.count = have + 1;
1223         sig::sig_ffi_cif(pool, signature.count, extended, &corrected);
1224         cif = &corrected;
1225     }
1226
1227     void *values[have];
1228     memcpy(values, setup, sizeof(void *) * setups);
1229
1230     for (size_t index(setups); index != have; ++index) {
1231         sig::Element &element(elements[index + 1]);
1232         ffi_type *ffi(cif->arg_types[index]);
1233         values[index] = pool.malloc<uint8_t>(ffi->size, ffi->alignment);
1234         element.type->PoolFFI(&pool, context, ffi, values[index], arguments[index - setups]);
1235     }
1236
1237     uint8_t value[cif->rtype->size];
1238
1239     void (*call)(CYPool &, JSContextRef, ffi_cif *, void (*)(), void *, void **) = &CYCallFunction;
1240     // XXX: this only supports one hook, but it is a bad idea anyway
1241     for (CYHook *hook : GetHooks())
1242         if (hook->CallFunction != NULL)
1243             call = hook->CallFunction;
1244
1245     call(pool, context, cif, function, value, values);
1246     return signature.elements[0].type->FromFFI(context, cif->rtype, value, initialize);
1247 }
1248
1249 static JSValueRef Functor_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1250     CYPool pool;
1251     cy::Functor *internal(reinterpret_cast<cy::Functor *>(JSObjectGetPrivate(object)));
1252     return CYCallFunction(pool, context, 0, NULL, count, arguments, false, internal->variadic_, internal->signature_, &internal->cif_, internal->value_);
1253 } CYCatch(NULL) }
1254
1255 static JSValueRef Pointer_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1256     Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(object)));
1257     if (dynamic_cast<sig::Function *>(internal->type_->type_) == NULL)
1258         throw CYJSError(context, "cannot call a pointer to non-function");
1259     JSObjectRef functor(CYCastJSObject(context, CYGetProperty(context, object, cyi_s)));
1260     return CYCallAsFunction(context, functor, _this, count, arguments);
1261 } CYCatch(NULL) }
1262
1263 JSObjectRef CYMakeType(JSContextRef context, const sig::Type &type) {
1264     return Type_privateData::Make(context, type);
1265 }
1266
1267 extern "C" bool CYBridgeHash(CYPool &pool, CYUTF8String name, const char *&code, unsigned &flags) {
1268     sqlite3_stmt *statement;
1269
1270     _sqlcall(sqlite3_prepare(database_,
1271         "select "
1272             "\"cache\".\"code\", "
1273             "\"cache\".\"flags\" "
1274         "from \"cache\" "
1275         "where"
1276             " \"cache\".\"system\" & " CY_SYSTEM " == " CY_SYSTEM " and"
1277             " \"cache\".\"name\" = ?"
1278         " limit 1"
1279     , -1, &statement, NULL));
1280
1281     _sqlcall(sqlite3_bind_text(statement, 1, name.data, name.size, SQLITE_STATIC));
1282
1283     bool success;
1284     if (_sqlcall(sqlite3_step(statement)) == SQLITE_DONE)
1285         success = false;
1286     else {
1287         success = true;
1288         code = sqlite3_column_pooled(pool, statement, 0);
1289         flags = sqlite3_column_int(statement, 1);
1290     }
1291
1292     _sqlcall(sqlite3_finalize(statement));
1293     return success;
1294 }
1295
1296 static bool All_hasProperty(JSContextRef context, JSObjectRef object, JSStringRef property) {
1297     if (JSStringIsEqualToUTF8CString(property, "errno"))
1298         return true;
1299
1300     JSObjectRef global(CYGetGlobalObject(context));
1301     JSObjectRef cycript(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Cycript"))));
1302     JSObjectRef alls(CYCastJSObject(context, CYGetProperty(context, cycript, CYJSString("alls"))));
1303
1304     for (size_t i(0), count(CYArrayLength(context, alls)); i != count; ++i)
1305         if (JSObjectRef space = CYCastJSObject(context, CYArrayGet(context, alls, count - i - 1)))
1306             if (CYHasProperty(context, space, property))
1307                 return true;
1308
1309     CYPool pool;
1310     const char *code;
1311     unsigned flags;
1312     if (CYBridgeHash(pool, CYPoolUTF8String(pool, context, property), code, flags))
1313         return true;
1314
1315     return false;
1316 }
1317
1318 static JSValueRef All_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1319     if (JSStringIsEqualToUTF8CString(property, "errno"))
1320         return CYCastJSValue(context, errno);
1321
1322     JSObjectRef global(CYGetGlobalObject(context));
1323     JSObjectRef cycript(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Cycript"))));
1324     JSObjectRef alls(CYCastJSObject(context, CYGetProperty(context, cycript, CYJSString("alls"))));
1325
1326     for (size_t i(0), count(CYArrayLength(context, alls)); i != count; ++i)
1327         if (JSObjectRef space = CYCastJSObject(context, CYArrayGet(context, alls, count - i - 1)))
1328             if (JSValueRef value = CYGetProperty(context, space, property))
1329                 if (!JSValueIsUndefined(context, value))
1330                     return value;
1331
1332     CYPool pool;
1333     const char *code;
1334     unsigned flags;
1335     if (CYBridgeHash(pool, CYPoolUTF8String(pool, context, property), code, flags)) {
1336         CYUTF8String parsed;
1337
1338         try {
1339             parsed = CYPoolCode(pool, code);
1340         } catch (const CYException &error) {
1341             CYThrow("%s", pool.strcat("error caching ", CYPoolCString(pool, context, property), ": ", error.PoolCString(pool), NULL));
1342         }
1343
1344         JSObjectRef cache(CYGetCachedObject(context, CYJSString("cache")));
1345
1346         JSObjectRef stub;
1347         if (flags == CYBridgeType) {
1348             stub = CYMakeType(context, sig::Void());
1349             CYSetProperty(context, cache, property, stub);
1350         } else
1351             stub = NULL;
1352
1353         JSValueRef value(_jsccall(JSEvaluateScript, context, CYJSString(parsed), NULL, NULL, 0));
1354
1355         switch (flags) {
1356             case CYBridgeVoid: {
1357             } break;
1358
1359             case CYBridgeHold: {
1360                 CYSetProperty(context, cache, property, value);
1361             } break;
1362
1363             case CYBridgeType: {
1364                 JSObjectRef swap(CYCastJSObject(context, value));
1365                 void *source(JSObjectGetPrivate(swap));
1366                 _assert(source != NULL);
1367                 void *target(JSObjectGetPrivate(stub));
1368                 _assert(JSObjectSetPrivate(swap, target));
1369                 _assert(JSObjectSetPrivate(stub, source));
1370                 value = stub;
1371             } break;
1372         }
1373
1374         return value;
1375     }
1376
1377     return NULL;
1378 } CYCatch(NULL) }
1379
1380 static JSValueRef All_complete_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1381     _assert(count == 1);
1382     CYPool pool;
1383     CYUTF8String prefix(CYPoolUTF8String(pool, context, CYJSString(context, arguments[0])));
1384
1385     JSObjectRef array(NULL);
1386
1387     {
1388     CYArrayBuilder<1024> values(context, array);
1389
1390     sqlite3_stmt *statement;
1391
1392     if (prefix.size == 0)
1393         _sqlcall(sqlite3_prepare(database_,
1394             "select "
1395                 "\"cache\".\"name\" "
1396             "from \"cache\" "
1397             "where"
1398                 " \"cache\".\"system\" & " CY_SYSTEM " == " CY_SYSTEM
1399         , -1, &statement, NULL));
1400     else {
1401         _sqlcall(sqlite3_prepare(database_,
1402             "select "
1403                 "\"cache\".\"name\" "
1404             "from \"cache\" "
1405             "where"
1406                 " \"cache\".\"name\" >= ? and \"cache\".\"name\" < ? and "
1407                 " \"cache\".\"system\" & " CY_SYSTEM " == " CY_SYSTEM
1408         , -1, &statement, NULL));
1409
1410         _sqlcall(sqlite3_bind_text(statement, 1, prefix.data, prefix.size, SQLITE_STATIC));
1411
1412         char *after(pool.strndup(prefix.data, prefix.size));
1413         ++after[prefix.size - 1];
1414         _sqlcall(sqlite3_bind_text(statement, 2, after, prefix.size, SQLITE_STATIC));
1415     }
1416
1417     while (_sqlcall(sqlite3_step(statement)) != SQLITE_DONE)
1418         values(CYCastJSValue(context, CYJSString(sqlite3_column_string(statement, 0))));
1419
1420     _sqlcall(sqlite3_finalize(statement));
1421     }
1422
1423     return array;
1424 } CYCatch(NULL) }
1425
1426 static void All_getPropertyNames(JSContextRef context, JSObjectRef object, JSPropertyNameAccumulatorRef names) {
1427     JSObjectRef global(CYGetGlobalObject(context));
1428     JSObjectRef cycript(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Cycript"))));
1429     JSObjectRef alls(CYCastJSObject(context, CYGetProperty(context, cycript, CYJSString("alls"))));
1430
1431     for (size_t i(0), count(CYArrayLength(context, alls)); i != count; ++i)
1432         if (JSObjectRef space = CYCastJSObject(context, CYArrayGet(context, alls, count - i - 1))) {
1433             JSPropertyNameArrayRef subset(JSObjectCopyPropertyNames(context, space));
1434             for (size_t index(0), count(JSPropertyNameArrayGetCount(subset)); index != count; ++index)
1435                 JSPropertyNameAccumulatorAddName(names, JSPropertyNameArrayGetNameAtIndex(subset, index));
1436             JSPropertyNameArrayRelease(subset);
1437         }
1438 }
1439
1440 static JSObjectRef CArray_new(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1441     _assert(false);
1442 } CYCatch(NULL) }
1443
1444 static JSObjectRef CString_new(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1445     _assert(false);
1446 } CYCatch(NULL) }
1447
1448 static JSObjectRef Pointer_new(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1449     _assert(false);
1450 } CYCatch(NULL) }
1451
1452 static JSObjectRef Type_new(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1453     CYPool pool;
1454
1455     if (false) {
1456     } else if (count == 1) {
1457         switch (JSValueGetType(context, arguments[0])) {
1458             case kJSTypeString: {
1459                 const char *encoding(CYPoolCString(pool, context, arguments[0]));
1460                 sig::Signature signature;
1461                 sig::Parse(pool, &signature, encoding, &Structor_);
1462                 return CYMakeType(context, *signature.elements[0].type);
1463             } break;
1464
1465             case kJSTypeObject: {
1466                 // XXX: accept a set of enum constants and /guess/ at their size
1467                 _assert(false);
1468             } break;
1469
1470             default:
1471                 throw CYJSError(context, "incorrect kind of argument to new Type");
1472         }
1473     } else if (count == 2) {
1474         JSObjectRef types(CYCastJSObject(context, arguments[0]));
1475         size_t count(CYArrayLength(context, types));
1476
1477         JSObjectRef names(CYCastJSObject(context, arguments[1]));
1478
1479         sig::Aggregate type(false);
1480         type.signature.elements = new(pool) sig::Element[count];
1481         type.signature.count = count;
1482
1483         for (size_t i(0); i != count; ++i) {
1484             sig::Element &element(type.signature.elements[i]);
1485             element.offset = _not(size_t);
1486
1487             JSValueRef name(CYArrayGet(context, names, i));
1488             if (JSValueIsUndefined(context, name))
1489                 element.name = NULL;
1490             else
1491                 element.name = CYPoolCString(pool, context, name);
1492
1493             JSObjectRef object(CYCastJSObject(context, CYArrayGet(context, types, i)));
1494             _assert(JSValueIsObjectOfClass(context, object, Type_privateData::Class_));
1495             Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
1496             element.type = internal->type_;
1497         }
1498
1499         return CYMakeType(context, type);
1500     } else {
1501         throw CYJSError(context, "incorrect number of arguments to Type constructor");
1502     }
1503 } CYCatch(NULL) }
1504
1505 static JSValueRef Type_callAsFunction_$With(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], sig::Callable &type, JSValueRef *exception) { CYTry {
1506     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1507
1508     CYPool pool;
1509
1510     type.signature.elements = new(pool) sig::Element[1 + count];
1511     type.signature.count = 1 + count;
1512
1513     type.signature.elements[0].name = NULL;
1514     type.signature.elements[0].type = internal->type_;
1515     type.signature.elements[0].offset = _not(size_t);
1516
1517     for (size_t i(0); i != count; ++i) {
1518         sig::Element &element(type.signature.elements[i + 1]);
1519         element.name = NULL;
1520         element.offset = _not(size_t);
1521
1522         JSObjectRef object(CYCastJSObject(context, arguments[i]));
1523         _assert(JSValueIsObjectOfClass(context, object, Type_privateData::Class_));
1524         Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
1525
1526         element.type = internal->type_;
1527     }
1528
1529     return CYMakeType(context, type);
1530 } CYCatch(NULL) }
1531
1532 static JSValueRef Type_callAsFunction_arrayOf(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1533     if (count != 1)
1534         throw CYJSError(context, "incorrect number of arguments to Type.arrayOf");
1535     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1536
1537     CYPool pool;
1538     size_t index(CYGetIndex(pool, context, CYJSString(context, arguments[0])));
1539     if (index == _not(size_t))
1540         throw CYJSError(context, "invalid array size used with Type.arrayOf");
1541
1542     sig::Array type(*internal->type_, index);
1543     return CYMakeType(context, type);
1544 } CYCatch(NULL) }
1545
1546 static JSValueRef Type_callAsFunction_blockWith(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
1547 #ifdef CY_OBJECTIVEC
1548     sig::Block type;
1549     return Type_callAsFunction_$With(context, object, _this, count, arguments, type, exception);
1550 #else
1551     _assert(false);
1552 #endif
1553 }
1554
1555 static JSValueRef Type_callAsFunction_constant(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1556     if (count != 0)
1557         throw CYJSError(context, "incorrect number of arguments to Type.constant");
1558     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1559
1560     CYPool pool;
1561     sig::Type *type(internal->type_->Copy(pool));
1562     type->flags |= JOC_TYPE_CONST;
1563     return CYMakeType(context, *type);
1564 } CYCatch(NULL) }
1565
1566 static JSValueRef Type_callAsFunction_enumFor(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1567     if (count != 1)
1568         throw CYJSError(context, "incorrect number of arguments to Type.enumFor");
1569     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1570
1571     CYPool pool;
1572
1573     JSObjectRef constants(CYCastJSObject(context, arguments[0]));
1574
1575     // XXX: this is, sadly, going to leak
1576     JSPropertyNameArrayRef names(JSObjectCopyPropertyNames(context, constants));
1577
1578     size_t count(JSPropertyNameArrayGetCount(names));
1579
1580     sig::Enum type(*internal->type_, count);
1581     type.constants = new(pool) sig::Constant[count];
1582
1583     for (size_t index(0); index != count; ++index) {
1584         JSStringRef name(JSPropertyNameArrayGetNameAtIndex(names, index));
1585         JSValueRef value(CYGetProperty(context, constants, name));
1586         _assert(JSValueGetType(context, value) == kJSTypeNumber);
1587         CYUTF8String string(CYPoolUTF8String(pool, context, name));
1588         type.constants[index].name = string.data;
1589         type.constants[index].value = CYCastDouble(context, value);
1590     }
1591
1592     JSPropertyNameArrayRelease(names);
1593
1594     return CYMakeType(context, type);
1595 } CYCatch(NULL) }
1596
1597 static JSValueRef Type_callAsFunction_functionWith(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
1598     bool variadic(count != 0 && JSValueIsNull(context, arguments[count - 1]));
1599     sig::Function type(variadic);
1600     return Type_callAsFunction_$With(context, object, _this, variadic ? count - 1 : count, arguments, type, exception);
1601 }
1602
1603 static JSValueRef Type_callAsFunction_pointerTo(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1604     if (count != 0)
1605         throw CYJSError(context, "incorrect number of arguments to Type.pointerTo");
1606     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1607
1608     if (dynamic_cast<sig::Primitive<char> *>(internal->type_) != NULL)
1609         return CYMakeType(context, sig::String());
1610     else
1611         return CYMakeType(context, sig::Pointer(*internal->type_));
1612 } CYCatch(NULL) }
1613
1614 static JSValueRef Type_callAsFunction_withName(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1615     if (count != 1)
1616         throw CYJSError(context, "incorrect number of arguments to Type.withName");
1617     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1618
1619     CYPool pool;
1620     return CYMakeType(context, *internal->type_->Copy(pool, CYPoolCString(pool, context, arguments[0])));
1621 } CYCatch(NULL) }
1622
1623 static JSValueRef Type_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1624     if (count != 1)
1625         throw CYJSError(context, "incorrect number of arguments to type cast function");
1626     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
1627
1628     if (sig::Function *function = dynamic_cast<sig::Function *>(internal->type_))
1629         return CYMakeFunctor(context, arguments[0], function->variadic, function->signature);
1630
1631     CYPool pool;
1632
1633     sig::Type *type(internal->type_);
1634     ffi_type *ffi(internal->GetFFI());
1635     void *data(pool.malloc<void>(ffi->size, ffi->alignment));
1636
1637     type->PoolFFI(&pool, context, ffi, data, arguments[0]);
1638     JSValueRef value(type->FromFFI(context, ffi, data));
1639
1640     if (JSValueGetType(context, value) == kJSTypeNumber) {
1641         JSObjectRef typed(_jsccall(JSObjectCallAsConstructor, context, CYGetCachedObject(context, CYJSString("Number")), 1, &value));
1642         CYSetProperty(context, typed, cyt_s, object, kJSPropertyAttributeDontEnum);
1643         value = typed;
1644     }
1645
1646     return value;
1647 } CYCatch(NULL) }
1648
1649 static JSObjectRef Type_callAsConstructor(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1650     if (count > 1)
1651         throw CYJSError(context, "incorrect number of arguments to Type allocator");
1652     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
1653
1654     JSObjectRef pointer(CYMakePointer(context, NULL, *internal->type_, NULL, NULL));
1655     Pointer *value(reinterpret_cast<Pointer *>(JSObjectGetPrivate(pointer)));
1656
1657     sig::Type *type(internal->type_);
1658     ffi_type *ffi(internal->GetFFI());
1659     value->value_ = value->pool_->malloc<void>(ffi->size, ffi->alignment);
1660
1661     if (count == 0)
1662         memset(value->value_, 0, ffi->size);
1663     else
1664         type->PoolFFI(value->pool_, context, ffi, value->value_, arguments[0]);
1665
1666     return pointer;
1667 } CYCatch(NULL) }
1668
1669 static JSObjectRef Functor_new(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1670     if (count != 2)
1671         throw CYJSError(context, "incorrect number of arguments to Functor constructor");
1672     CYPool pool;
1673     const char *encoding(CYPoolCString(pool, context, arguments[1]));
1674     sig::Signature signature;
1675     sig::Parse(pool, &signature, encoding, &Structor_);
1676     return CYMakeFunctor(context, arguments[0], false, signature);
1677 } CYCatch(NULL) }
1678
1679 static JSValueRef CArray_callAsFunction_toPointer(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1680     CArray *internal(reinterpret_cast<CArray *>(JSObjectGetPrivate(_this)));
1681     JSObjectRef owner(internal->owner_ ?: object);
1682     return CYMakePointer(context, internal->value_, *internal->type_->type_, NULL, owner);
1683 } CYCatch(NULL) }
1684
1685 static JSValueRef CString_callAsFunction_toPointer(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1686     CString *internal(reinterpret_cast<CString *>(JSObjectGetPrivate(_this)));
1687     JSObjectRef owner(internal->owner_ ?: object);
1688     return CYMakePointer(context, internal->value_, sig::Primitive<char>(), NULL, owner);
1689 } CYCatch(NULL) }
1690
1691 static JSValueRef Functor_callAsFunction_$cya(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1692     CYPool pool;
1693     cy::Functor *internal(reinterpret_cast<cy::Functor *>(JSObjectGetPrivate(_this)));
1694
1695     sig::Function type(internal->variadic_);
1696     sig::Copy(pool, type.signature, internal->signature_);
1697
1698     return CYMakePointer(context, reinterpret_cast<void *>(internal->value_), type, NULL, NULL);
1699 } CYCatch(NULL) }
1700
1701 static JSValueRef Pointer_callAsFunction_toPointer(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1702     return _this;
1703 } CYCatch(NULL) }
1704
1705 static JSValueRef CArray_callAsFunction_valueOf(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1706     CArray *internal(reinterpret_cast<CArray *>(JSObjectGetPrivate(_this)));
1707     return CYCastJSValue(context, reinterpret_cast<uintptr_t>(internal->value_));
1708 } CYCatch(NULL) }
1709
1710 static JSValueRef Pointer_callAsFunction_valueOf(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1711     Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(_this)));
1712     return CYCastJSValue(context, reinterpret_cast<uintptr_t>(internal->value_));
1713 } CYCatch(NULL) }
1714
1715 static JSValueRef Functor_callAsFunction_valueOf(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1716     cy::Functor *internal(reinterpret_cast<cy::Functor *>(JSObjectGetPrivate(_this)));
1717     return CYCastJSValue(context, reinterpret_cast<uintptr_t>(internal->value_));
1718 } CYCatch(NULL) }
1719
1720 static JSValueRef Functor_callAsFunction_toCYON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1721     cy::Functor *internal(reinterpret_cast<cy::Functor *>(JSObjectGetPrivate(_this)));
1722     uint8_t *value(reinterpret_cast<uint8_t *>(internal->value_));
1723
1724     CYLocalPool pool;
1725
1726     sig::Function function(internal->variadic_);
1727     sig::Copy(pool, function.signature, internal->signature_);
1728
1729     auto typed(CYDecodeType(pool, &function)); {
1730         std::ostringstream str;
1731         Dl_info info;
1732         if (internal->value_ == NULL)
1733             str << "NULL";
1734         else if (dladdr(value, &info) == 0)
1735             str << internal->value_;
1736         else {
1737             str << info.dli_sname;
1738             off_t offset(value - reinterpret_cast<uint8_t *>(info.dli_saddr));
1739             if (offset != 0)
1740                 str << "+0x" << std::hex << offset;
1741         }
1742
1743         typed->identifier_ = new(pool) CYIdentifier(pool.strdup(str.str().c_str()));
1744     }
1745
1746     std::ostringstream str;
1747     CYOptions options;
1748     CYOutput output(*str.rdbuf(), options);
1749     output.pretty_ = true;
1750     (new(pool) CYExternalExpression(new(pool) CYString("C"), typed))->Output(output, CYNoFlags);
1751     return CYCastJSValue(context, CYJSString(str.str()));
1752 } CYCatch(NULL) }
1753
1754 static JSValueRef Pointer_callAsFunction_toCYON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1755     std::set<void *> *objects(CYCastObjects(context, _this, count, arguments));
1756
1757     Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(_this)));
1758
1759     try {
1760         JSValueRef value(CYGetProperty(context, _this, cyi_s));
1761         if (!JSValueIsUndefined(context, value)) {
1762             CYPool pool;
1763             return CYCastJSValue(context, pool.strcat("&", CYPoolCCYON(pool, context, value, objects), NULL));
1764         }
1765     } catch (const CYException &e) {
1766         // XXX: it might be interesting to include this error
1767     }
1768
1769     CYLocalPool pool;
1770     std::ostringstream str;
1771
1772     sig::Pointer type(*internal->type_->type_);
1773
1774     CYOptions options;
1775     CYOutput output(*str.rdbuf(), options);
1776     (new(pool) CYTypeExpression(CYDecodeType(pool, &type)))->Output(output, CYNoFlags);
1777
1778     str << "(" << internal->value_ << ")";
1779     std::string value(str.str());
1780     return CYCastJSValue(context, CYJSString(CYUTF8String(value.c_str(), value.size())));
1781 } CYCatch(NULL) }
1782
1783 static JSValueRef CString_getProperty_length(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1784     CString *internal(reinterpret_cast<CString *>(JSObjectGetPrivate(object)));
1785     return CYCastJSValue(context, strlen(internal->value_));
1786 } CYCatch(NULL) }
1787
1788 static JSValueRef CString_getProperty_$cyt(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1789     return CYMakeType(context, sig::String());
1790 } CYCatch(NULL) }
1791
1792 static JSValueRef CArray_getProperty_$cyt(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1793     CArray *internal(reinterpret_cast<CArray *>(JSObjectGetPrivate(object)));
1794     sig::Array type(*internal->type_->type_, internal->length_);
1795     return CYMakeType(context, type);
1796 } CYCatch(NULL) }
1797
1798 static JSValueRef Pointer_getProperty_$cyt(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1799     Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(object)));
1800     sig::Pointer type(*internal->type_->type_);
1801     return CYMakeType(context, type);
1802 } CYCatch(NULL) }
1803
1804 static JSValueRef CString_callAsFunction_toCYON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1805     CString *internal(reinterpret_cast<CString *>(JSObjectGetPrivate(_this)));
1806     const char *string(internal->value_);
1807     std::ostringstream str;
1808     if (string == NULL)
1809         str << "NULL";
1810     else {
1811         str << "&";
1812         CYStringify(str, string, strlen(string), true);
1813     }
1814     std::string value(str.str());
1815     return CYCastJSValue(context, CYJSString(CYUTF8String(value.c_str(), value.size())));
1816 } CYCatch(NULL) }
1817
1818 static JSValueRef CString_callAsFunction_toString(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1819     CString *internal(reinterpret_cast<CString *>(JSObjectGetPrivate(_this)));
1820     return CYCastJSValue(context, internal->value_);
1821 } CYCatch(NULL) }
1822
1823 static JSValueRef Functor_getProperty_$cyt(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1824     cy::Functor *internal(reinterpret_cast<cy::Functor *>(JSObjectGetPrivate(object)));
1825     CYPool pool;
1826     sig::Function type(internal->variadic_);
1827     sig::Copy(pool, type.signature, internal->signature_);
1828     return CYMakeType(context, type);
1829 } CYCatch(NULL) }
1830
1831 static JSValueRef Type_getProperty_alignment(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1832     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
1833     return CYCastJSValue(context, internal->GetFFI()->alignment);
1834 } CYCatch(NULL) }
1835
1836 static JSValueRef Type_getProperty_name(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1837     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
1838     return CYCastJSValue(context, internal->type_->GetName());
1839 } CYCatch(NULL) }
1840
1841 static JSValueRef Type_getProperty_size(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1842     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
1843     return CYCastJSValue(context, internal->GetFFI()->size);
1844 } CYCatch(NULL) }
1845
1846 static JSValueRef Type_callAsFunction_toString(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1847     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1848     CYPool pool;
1849     const char *type(sig::Unparse(pool, internal->type_));
1850     return CYCastJSValue(context, CYJSString(type));
1851 } CYCatch(NULL) }
1852
1853 static JSValueRef Type_callAsFunction_toCYON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1854     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1855     CYLocalPool pool;
1856     std::stringbuf out;
1857     CYOptions options;
1858     CYOutput output(out, options);
1859     output.pretty_ = true;
1860     (new(pool) CYTypeExpression(CYDecodeType(pool, internal->type_->Copy(pool, ""))))->Output(output, CYNoFlags);
1861     return CYCastJSValue(context, CYJSString(out.str().c_str()));
1862 } CYCatch(NULL) }
1863
1864 static JSStaticFunction All_staticFunctions[2] = {
1865     {"cy$complete", &All_complete_callAsFunction, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1866     {NULL, NULL, 0}
1867 };
1868
1869 static JSStaticFunction CArray_staticFunctions[3] = {
1870     {"toPointer", &CArray_callAsFunction_toPointer, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1871     {"valueOf", &CArray_callAsFunction_valueOf, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1872     {NULL, NULL, 0}
1873 };
1874
1875 static JSStaticValue CArray_staticValues[2] = {
1876     {"$cyt", &CArray_getProperty_$cyt, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1877     {NULL, NULL, NULL, 0}
1878 };
1879
1880 static JSStaticFunction CString_staticFunctions[5] = {
1881     {"toCYON", &CString_callAsFunction_toCYON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1882     {"toPointer", &CString_callAsFunction_toPointer, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1883     {"toString", &CString_callAsFunction_toString, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1884     {"valueOf", &CString_callAsFunction_toString, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1885     {NULL, NULL, 0}
1886 };
1887
1888 static JSStaticValue CString_staticValues[3] = {
1889     {"length", &CString_getProperty_length, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1890     {"$cyt", &CString_getProperty_$cyt, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1891     {NULL, NULL, NULL, 0}
1892 };
1893
1894 static JSStaticFunction Pointer_staticFunctions[4] = {
1895     {"toCYON", &Pointer_callAsFunction_toCYON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1896     {"toPointer", &Pointer_callAsFunction_toPointer, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1897     {"valueOf", &Pointer_callAsFunction_valueOf, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1898     {NULL, NULL, 0}
1899 };
1900
1901 static JSStaticValue Pointer_staticValues[2] = {
1902     {"$cyt", &Pointer_getProperty_$cyt, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1903     {NULL, NULL, NULL, 0}
1904 };
1905
1906 static JSStaticFunction Struct_staticFunctions[2] = {
1907     {"$cya", &Struct_callAsFunction_$cya, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1908     {NULL, NULL, 0}
1909 };
1910
1911 static JSStaticValue Struct_staticValues[2] = {
1912     {"$cyt", &Struct_getProperty_$cyt, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1913     {NULL, NULL, NULL, 0}
1914 };
1915
1916 static JSStaticFunction Functor_staticFunctions[4] = {
1917     {"$cya", &Functor_callAsFunction_$cya, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1918     {"toCYON", &Functor_callAsFunction_toCYON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1919     {"valueOf", &Functor_callAsFunction_valueOf, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1920     {NULL, NULL, 0}
1921 };
1922
1923 namespace cy {
1924     JSStaticFunction const * const Functor::StaticFunctions = Functor_staticFunctions;
1925 }
1926
1927 static JSStaticValue Functor_staticValues[2] = {
1928     {"$cyt", &Functor_getProperty_$cyt, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1929     {NULL, NULL, NULL, 0}
1930 };
1931
1932 namespace cy {
1933     JSStaticValue const * const Functor::StaticValues = Functor_staticValues;
1934 }
1935
1936 static JSStaticValue Type_staticValues[4] = {
1937     {"alignment", &Type_getProperty_alignment, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1938     {"name", &Type_getProperty_name, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1939     {"size", &Type_getProperty_size, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1940     {NULL, NULL, NULL, 0}
1941 };
1942
1943 static JSStaticFunction Type_staticFunctions[10] = {
1944     {"arrayOf", &Type_callAsFunction_arrayOf, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1945     {"blockWith", &Type_callAsFunction_blockWith, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1946     {"constant", &Type_callAsFunction_constant, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1947     {"enumFor", &Type_callAsFunction_enumFor, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1948     {"functionWith", &Type_callAsFunction_functionWith, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1949     {"pointerTo", &Type_callAsFunction_pointerTo, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1950     {"withName", &Type_callAsFunction_withName, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1951     {"toCYON", &Type_callAsFunction_toCYON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1952     {"toString", &Type_callAsFunction_toString, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1953     {NULL, NULL, 0}
1954 };
1955
1956 _visible void CYSetArgs(int argc, const char *argv[]) {
1957     JSContextRef context(CYGetJSContext());
1958     JSValueRef args[argc];
1959     for (int i(0); i != argc; ++i)
1960         args[i] = CYCastJSValue(context, argv[i]);
1961
1962     JSObjectRef array(CYObjectMakeArray(context, argc, args));
1963     JSObjectRef System(CYGetCachedObject(context, CYJSString("System")));
1964     CYSetProperty(context, System, CYJSString("args"), array);
1965 }
1966
1967 JSObjectRef CYGetGlobalObject(JSContextRef context) {
1968     return JSContextGetGlobalObject(context);
1969 }
1970
1971 // XXX: this is neither exceptin safe nor even terribly sane
1972 class ExecutionHandle {
1973   private:
1974     JSContextRef context_;
1975     std::vector<void *> handles_;
1976
1977   public:
1978     ExecutionHandle(JSContextRef context) :
1979         context_(context)
1980     {
1981         handles_.resize(GetHooks().size());
1982         for (size_t i(0); i != GetHooks().size(); ++i) {
1983             CYHook *hook(GetHooks()[i]);
1984             if (hook->ExecuteStart != NULL)
1985                 handles_[i] = (*hook->ExecuteStart)(context_);
1986             else
1987                 handles_[i] = NULL;
1988         }
1989     }
1990
1991     ~ExecutionHandle() {
1992         for (size_t i(GetHooks().size()); i != 0; --i) {
1993             CYHook *hook(GetHooks()[i-1]);
1994             if (hook->ExecuteEnd != NULL)
1995                 (*hook->ExecuteEnd)(context_, handles_[i-1]);
1996         }
1997     }
1998 };
1999
2000 #ifndef __ANDROID__
2001 static volatile bool cancel_;
2002
2003 static bool CYShouldTerminate(JSContextRef context, void *arg) {
2004     return cancel_;
2005 }
2006 #endif
2007
2008 _visible const char *CYExecute(JSContextRef context, CYPool &pool, CYUTF8String code) {
2009     ExecutionHandle handle(context);
2010
2011 #ifndef __ANDROID__
2012     cancel_ = false;
2013     if (&JSContextGroupSetExecutionTimeLimit != NULL)
2014         JSContextGroupSetExecutionTimeLimit(JSContextGetGroup(context), 0.5, &CYShouldTerminate, NULL);
2015 #endif
2016
2017     try {
2018         JSValueRef result(_jsccall(JSEvaluateScript, context, CYJSString(code), NULL, NULL, 0));
2019         if (JSValueIsUndefined(context, result))
2020             return NULL;
2021
2022         std::set<void *> objects;
2023         const char *json(_jsccall(CYPoolCCYON, pool, context, result, objects));
2024         CYSetProperty(context, CYGetGlobalObject(context), Result_, result);
2025
2026         return json;
2027     } catch (const CYException &error) {
2028         return pool.strcat("throw ", error.PoolCString(pool), NULL);
2029     }
2030 }
2031
2032 #ifndef __ANDROID__
2033 _visible void CYCancel() {
2034     cancel_ = true;
2035 }
2036 #endif
2037
2038 const char *CYPoolLibraryPath(CYPool &pool);
2039
2040 static bool initialized_ = false;
2041
2042 void CYInitializeDynamic() {
2043     if (!initialized_)
2044         initialized_ = true;
2045     else return;
2046
2047     CYPool pool;
2048     const char *db(pool.strcat(CYPoolLibraryPath(pool), "/libcycript.db", NULL));
2049     _sqlcall(sqlite3_open_v2(db, &database_, SQLITE_OPEN_READONLY, NULL));
2050
2051     JSObjectMakeArray$ = reinterpret_cast<JSObjectRef (*)(JSContextRef, size_t, const JSValueRef[], JSValueRef *)>(dlsym(RTLD_DEFAULT, "JSObjectMakeArray"));
2052     JSSynchronousGarbageCollectForDebugging$ = reinterpret_cast<void (*)(JSContextRef)>(dlsym(RTLD_DEFAULT, "JSSynchronousGarbageCollectForDebugging"));
2053
2054     JSClassDefinition definition;
2055
2056     definition = kJSClassDefinitionEmpty;
2057     definition.className = "All";
2058     definition.staticFunctions = All_staticFunctions;
2059     definition.hasProperty = &All_hasProperty;
2060     definition.getProperty = &All_getProperty;
2061     definition.getPropertyNames = &All_getPropertyNames;
2062     All_ = JSClassCreate(&definition);
2063
2064     definition = kJSClassDefinitionEmpty;
2065     definition.className = "Context";
2066     definition.finalize = &CYFinalize;
2067     Context::Class_ = JSClassCreate(&definition);
2068
2069     definition = kJSClassDefinitionEmpty;
2070     definition.className = "CArray";
2071     definition.staticFunctions = CArray_staticFunctions;
2072     definition.staticValues = CArray_staticValues;
2073     definition.getProperty = &CArray_getProperty;
2074     definition.setProperty = &CArray_setProperty;
2075     definition.finalize = &CYFinalize;
2076     CArray::Class_ = JSClassCreate(&definition);
2077
2078     definition = kJSClassDefinitionEmpty;
2079     definition.className = "CString";
2080     definition.staticFunctions = CString_staticFunctions;
2081     definition.staticValues = CString_staticValues;
2082     definition.getProperty = &CString_getProperty;
2083     definition.setProperty = &CString_setProperty;
2084     definition.finalize = &CYFinalize;
2085     CString::Class_ = JSClassCreate(&definition);
2086
2087     definition = kJSClassDefinitionEmpty;
2088     definition.className = "Functor";
2089     definition.staticFunctions = cy::Functor::StaticFunctions;
2090     definition.staticValues = Functor_staticValues;
2091     definition.callAsFunction = &Functor_callAsFunction;
2092     definition.finalize = &CYFinalize;
2093     Functor_ = JSClassCreate(&definition);
2094
2095     definition = kJSClassDefinitionEmpty;
2096     definition.className = "Pointer";
2097     definition.staticFunctions = Pointer_staticFunctions;
2098     definition.staticValues = Pointer_staticValues;
2099     definition.callAsFunction = &Pointer_callAsFunction;
2100     definition.getProperty = &Pointer_getProperty;
2101     definition.setProperty = &Pointer_setProperty;
2102     definition.finalize = &CYFinalize;
2103     Pointer::Class_ = JSClassCreate(&definition);
2104
2105     definition = kJSClassDefinitionEmpty;
2106     definition.className = "Struct";
2107     definition.staticFunctions = Struct_staticFunctions;
2108     definition.staticValues = Struct_staticValues;
2109     definition.getProperty = &Struct_getProperty;
2110     definition.setProperty = &Struct_setProperty;
2111     definition.getPropertyNames = &Struct_getPropertyNames;
2112     definition.finalize = &CYFinalize;
2113     Struct_privateData::Class_ = JSClassCreate(&definition);
2114
2115     definition = kJSClassDefinitionEmpty;
2116     definition.className = "Type";
2117     definition.staticValues = Type_staticValues;
2118     definition.staticFunctions = Type_staticFunctions;
2119     definition.callAsFunction = &Type_callAsFunction;
2120     definition.callAsConstructor = &Type_callAsConstructor;
2121     definition.finalize = &CYFinalize;
2122     Type_privateData::Class_ = JSClassCreate(&definition);
2123
2124     definition = kJSClassDefinitionEmpty;
2125     definition.className = "Global";
2126     //definition.getProperty = &Global_getProperty;
2127     Global_ = JSClassCreate(&definition);
2128
2129     Array_s = JSStringCreateWithUTF8CString("Array");
2130     constructor_s = JSStringCreateWithUTF8CString("constructor");
2131     cy_s = JSStringCreateWithUTF8CString("$cy");
2132     cyi_s = JSStringCreateWithUTF8CString("$cyi");
2133     cyt_s = JSStringCreateWithUTF8CString("$cyt");
2134     length_s = JSStringCreateWithUTF8CString("length");
2135     message_s = JSStringCreateWithUTF8CString("message");
2136     name_s = JSStringCreateWithUTF8CString("name");
2137     pop_s = JSStringCreateWithUTF8CString("pop");
2138     prototype_s = JSStringCreateWithUTF8CString("prototype");
2139     push_s = JSStringCreateWithUTF8CString("push");
2140     splice_s = JSStringCreateWithUTF8CString("splice");
2141     toCYON_s = JSStringCreateWithUTF8CString("toCYON");
2142     toJSON_s = JSStringCreateWithUTF8CString("toJSON");
2143     toPointer_s = JSStringCreateWithUTF8CString("toPointer");
2144     toString_s = JSStringCreateWithUTF8CString("toString");
2145     weak_s = JSStringCreateWithUTF8CString("weak");
2146
2147     Result_ = JSStringCreateWithUTF8CString("_");
2148
2149     for (CYHook *hook : GetHooks())
2150         if (hook->Initialize != NULL)
2151             (*hook->Initialize)();
2152 }
2153
2154 void CYThrow(JSContextRef context, JSValueRef value) {
2155     if (value != NULL)
2156         throw CYJSError(context, value);
2157 }
2158
2159 const char *CYJSError::PoolCString(CYPool &pool) const {
2160     std::set<void *> objects;
2161     // XXX: this used to be CYPoolCString
2162     return CYPoolCCYON(pool, context_, value_, objects);
2163 }
2164
2165 JSValueRef CYJSError::CastJSValue(JSContextRef context, const char *name) const {
2166     // XXX: what if the context is different? or the name? I dunno. ("epic" :/)
2167     return value_;
2168 }
2169
2170 JSValueRef CYCastJSError(JSContextRef context, const char *name, const char *message) {
2171     JSObjectRef Error(CYGetCachedObject(context, CYJSString(name)));
2172     JSValueRef arguments[1] = {CYCastJSValue(context, message)};
2173     return _jsccall(JSObjectCallAsConstructor, context, Error, 1, arguments);
2174 }
2175
2176 JSValueRef CYPoolError::CastJSValue(JSContextRef context, const char *name) const {
2177     return CYCastJSError(context, name, message_);
2178 }
2179
2180 CYJSError::CYJSError(JSContextRef context, const char *format, ...) {
2181     _assert(context != NULL);
2182
2183     CYPool pool;
2184
2185     va_list args;
2186     va_start(args, format);
2187     // XXX: there might be a beter way to think about this
2188     const char *message(pool.vsprintf(64, format, args));
2189     va_end(args);
2190
2191     value_ = CYCastJSError(context, "Error", message);
2192 }
2193
2194 JSGlobalContextRef CYGetJSContext(JSContextRef context) {
2195     return reinterpret_cast<Context *>(JSObjectGetPrivate(CYCastJSObject(context, CYGetProperty(context, CYGetGlobalObject(context), cy_s))))->context_;
2196 }
2197
2198 #ifdef __ANDROID__
2199 char *CYPoolLibraryPath_(CYPool &pool) {
2200     FILE *maps(fopen("/proc/self/maps", "r"));
2201     struct F { FILE *f; F(FILE *f) : f(f) {}
2202         ~F() { fclose(f); } } f(maps);
2203
2204     size_t function(reinterpret_cast<size_t>(&CYPoolLibraryPath));
2205
2206     for (;;) {
2207         size_t start; size_t end; char flags[8]; unsigned long long offset;
2208         int major; int minor; unsigned long long inode; char file[1024];
2209         int count(fscanf(maps, "%zx-%zx %7s %llx %x:%x %llu%[ ]%1024[^\n]\n",
2210             &start, &end, flags, &offset, &major, &minor, &inode, file, file));
2211         if (count < 8) break; else if (start <= function && function < end)
2212             return pool.strdup(file);
2213     }
2214
2215     _assert(false);
2216 }
2217 #else
2218 char *CYPoolLibraryPath_(CYPool &pool) {
2219     Dl_info addr;
2220     _assert(dladdr(reinterpret_cast<void *>(&CYPoolLibraryPath), &addr) != 0);
2221     return pool.strdup(addr.dli_fname);
2222 }
2223 #endif
2224
2225 const char *CYPoolLibraryPath(CYPool &pool) {
2226     char *lib(CYPoolLibraryPath_(pool));
2227
2228     char *slash(strrchr(lib, '/'));
2229     if (slash == NULL)
2230         return ".";
2231     *slash = '\0';
2232
2233     slash = strrchr(lib, '/');
2234     if (slash != NULL) {
2235         if (strcmp(slash, "/.libs") == 0)
2236             *slash = '\0';
2237     } else if (strcmp(lib, ".libs") == 0)
2238         return ".";
2239
2240     return lib;
2241 }
2242
2243 static JSValueRef require_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
2244     _assert(count == 1);
2245     CYPool pool;
2246
2247     const char *name(CYPoolCString(pool, context, arguments[0]));
2248     if (strchr(name, '/') == NULL && (
2249 #ifdef __APPLE__
2250         dlopen(pool.strcat("/System/Library/Frameworks/", name, ".framework/", name, NULL), RTLD_LAZY | RTLD_GLOBAL) != NULL ||
2251         dlopen(pool.strcat("/System/Library/PrivateFrameworks/", name, ".framework/", name, NULL), RTLD_LAZY | RTLD_GLOBAL) != NULL ||
2252 #endif
2253     false))
2254         return CYJSUndefined(context);
2255
2256     JSObjectRef resolve(CYCastJSObject(context, CYGetProperty(context, object, CYJSString("resolve"))));
2257     CYJSString path(context, CYCallAsFunction(context, resolve, NULL, 1, arguments));
2258
2259     CYJSString property("exports");
2260
2261     JSObjectRef modules(CYGetCachedObject(context, CYJSString("modules")));
2262     JSValueRef cache(CYGetProperty(context, modules, path));
2263
2264     JSValueRef result;
2265     if (!JSValueIsUndefined(context, cache)) {
2266         JSObjectRef module(CYCastJSObject(context, cache));
2267         result = CYGetProperty(context, module, property);
2268     } else {
2269         CYUTF8String code(CYPoolFileUTF8String(pool, CYPoolCString(pool, context, path)));
2270         _assert(code.data != NULL);
2271
2272         size_t length(strlen(name));
2273         if (length >= 5 && strcmp(name + length - 5, ".json") == 0) {
2274             JSObjectRef JSON(CYGetCachedObject(context, CYJSString("JSON")));
2275             JSObjectRef parse(CYCastJSObject(context, CYGetProperty(context, JSON, CYJSString("parse"))));
2276             JSValueRef arguments[1] = { CYCastJSValue(context, CYJSString(code)) };
2277             result = CYCallAsFunction(context, parse, JSON, 1, arguments);
2278         } else {
2279             JSObjectRef module(JSObjectMake(context, NULL, NULL));
2280             CYSetProperty(context, modules, path, module);
2281
2282             JSObjectRef exports(JSObjectMake(context, NULL, NULL));
2283             CYSetProperty(context, module, property, exports);
2284
2285             std::stringstream wrap;
2286             wrap << "(function (exports, require, module, __filename) { " << code << "\n});";
2287             code = CYPoolCode(pool, *wrap.rdbuf());
2288
2289             JSValueRef value(_jsccall(JSEvaluateScript, context, CYJSString(code), NULL, NULL, 0));
2290             JSObjectRef function(CYCastJSObject(context, value));
2291
2292             JSValueRef arguments[4] = { exports, object, module, CYCastJSValue(context, path) };
2293             CYCallAsFunction(context, function, NULL, 4, arguments);
2294             result = CYGetProperty(context, module, property);
2295         }
2296     }
2297
2298     return result;
2299 } CYCatch(NULL) }
2300
2301 static bool CYRunScript(JSGlobalContextRef context, const char *path) {
2302     CYPool pool;
2303     CYUTF8String code(CYPoolFileUTF8String(pool, pool.strcat(CYPoolLibraryPath(pool), path, NULL)));
2304     if (code.data == NULL)
2305         return false;
2306
2307     code = CYPoolCode(pool, code);
2308     _jsccall(JSEvaluateScript, context, CYJSString(code), NULL, NULL, 0);
2309     return true;
2310 }
2311
2312 extern "C" void CYDestroyWeak(JSWeakObjectMapRef weak, void *data) {
2313 }
2314
2315 extern "C" void CYSetupContext(JSGlobalContextRef context) {
2316     CYInitializeDynamic();
2317
2318     JSObjectRef global(CYGetGlobalObject(context));
2319
2320     JSObjectRef cy(Context::Make(context, context));
2321     CYSetProperty(context, global, cy_s, cy, kJSPropertyAttributeDontEnum);
2322
2323 /* Cache Globals {{{ */
2324     JSObjectRef Array(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Array"))));
2325     CYSetProperty(context, cy, CYJSString("Array"), Array);
2326
2327     JSObjectRef Array_prototype(CYCastJSObject(context, CYGetProperty(context, Array, prototype_s)));
2328     CYSetProperty(context, cy, CYJSString("Array_prototype"), Array_prototype);
2329
2330     JSObjectRef Boolean(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Boolean"))));
2331     CYSetProperty(context, cy, CYJSString("Boolean"), Boolean);
2332
2333     JSObjectRef Boolean_prototype(CYCastJSObject(context, CYGetProperty(context, Boolean, prototype_s)));
2334     CYSetProperty(context, cy, CYJSString("Boolean_prototype"), Boolean_prototype);
2335
2336     JSObjectRef Error(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Error"))));
2337     CYSetProperty(context, cy, CYJSString("Error"), Error);
2338
2339     JSObjectRef Function(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Function"))));
2340     CYSetProperty(context, cy, CYJSString("Function"), Function);
2341
2342     JSObjectRef Function_prototype(CYCastJSObject(context, CYGetProperty(context, Function, prototype_s)));
2343     CYSetProperty(context, cy, CYJSString("Function_prototype"), Function_prototype);
2344
2345     JSObjectRef JSON(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("JSON"))));
2346     CYSetProperty(context, cy, CYJSString("JSON"), JSON);
2347
2348     JSObjectRef Number(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Number"))));
2349     CYSetProperty(context, cy, CYJSString("Number"), Number);
2350
2351     JSObjectRef Number_prototype(CYCastJSObject(context, CYGetProperty(context, Number, prototype_s)));
2352     CYSetProperty(context, cy, CYJSString("Number_prototype"), Number_prototype);
2353
2354     JSObjectRef Object(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Object"))));
2355     CYSetProperty(context, cy, CYJSString("Object"), Object);
2356
2357     JSObjectRef Object_prototype(CYCastJSObject(context, CYGetProperty(context, Object, prototype_s)));
2358     CYSetProperty(context, cy, CYJSString("Object_prototype"), Object_prototype);
2359
2360     JSObjectRef String(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("String"))));
2361     CYSetProperty(context, cy, CYJSString("String"), String);
2362
2363     JSObjectRef String_prototype(CYCastJSObject(context, CYGetProperty(context, String, prototype_s)));
2364     CYSetProperty(context, cy, CYJSString("String_prototype"), String_prototype);
2365
2366     JSObjectRef SyntaxError(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("SyntaxError"))));
2367     CYSetProperty(context, cy, CYJSString("SyntaxError"), SyntaxError);
2368 /* }}} */
2369
2370     CYSetProperty(context, Array_prototype, toCYON_s, &Array_callAsFunction_toCYON, kJSPropertyAttributeDontEnum);
2371     CYSetProperty(context, String_prototype, toCYON_s, &String_callAsFunction_toCYON, kJSPropertyAttributeDontEnum);
2372
2373     JSObjectRef cycript(JSObjectMake(context, NULL, NULL));
2374     CYSetProperty(context, global, CYJSString("Cycript"), cycript);
2375     CYSetProperty(context, cycript, CYJSString("compile"), &Cycript_compile_callAsFunction);
2376     CYSetProperty(context, cycript, CYJSString("gc"), &Cycript_gc_callAsFunction);
2377
2378     JSObjectRef CArray(JSObjectMakeConstructor(context, CArray::Class_, &CArray_new));
2379     CYSetPrototype(context, CYCastJSObject(context, CYGetProperty(context, CArray, prototype_s)), Array_prototype);
2380     CYSetProperty(context, cycript, CYJSString("CArray"), CArray);
2381
2382     JSObjectRef CString(JSObjectMakeConstructor(context, CString::Class_, &CString_new));
2383     CYSetPrototype(context, CYCastJSObject(context, CYGetProperty(context, CString, prototype_s)), String_prototype);
2384     CYSetProperty(context, cycript, CYJSString("CString"), CString);
2385
2386     JSObjectRef Functor(JSObjectMakeConstructor(context, Functor_, &Functor_new));
2387     CYSetPrototype(context, CYCastJSObject(context, CYGetProperty(context, Functor, prototype_s)), Function_prototype);
2388     CYSetProperty(context, cycript, CYJSString("Functor"), Functor);
2389
2390     CYSetProperty(context, cycript, CYJSString("Pointer"), JSObjectMakeConstructor(context, Pointer::Class_, &Pointer_new));
2391     CYSetProperty(context, cycript, CYJSString("Type"), JSObjectMakeConstructor(context, Type_privateData::Class_, &Type_new));
2392
2393     JSObjectRef modules(JSObjectMake(context, NULL, NULL));
2394     CYSetProperty(context, cy, CYJSString("modules"), modules);
2395
2396     JSObjectRef all(JSObjectMake(context, All_, NULL));
2397     CYSetProperty(context, cycript, CYJSString("all"), all);
2398
2399     JSObjectRef cache(JSObjectMake(context, NULL, NULL));
2400     CYSetProperty(context, cy, CYJSString("cache"), cache);
2401     CYSetPrototype(context, cache, all);
2402
2403     JSObjectRef alls(_jsccall(JSObjectCallAsConstructor, context, Array, 0, NULL));
2404     CYSetProperty(context, cycript, CYJSString("alls"), alls);
2405
2406     if (true) {
2407         JSObjectRef last(NULL), curr(global);
2408
2409         goto next; for (JSValueRef next;;) {
2410             if (JSValueIsNull(context, next))
2411                 break;
2412             last = curr;
2413             curr = CYCastJSObject(context, next);
2414           next:
2415             next = JSObjectGetPrototype(context, curr);
2416         }
2417
2418         CYSetPrototype(context, last, cache);
2419     }
2420
2421     JSObjectRef System(JSObjectMake(context, NULL, NULL));
2422     CYSetProperty(context, cy, CYJSString("System"), System);
2423
2424     CYSetProperty(context, global, CYJSString("require"), &require_callAsFunction, kJSPropertyAttributeDontEnum);
2425
2426     CYSetProperty(context, global, CYJSString("system"), System);
2427     CYSetProperty(context, System, CYJSString("args"), CYJSNull(context));
2428     CYSetProperty(context, System, CYJSString("print"), &System_print);
2429
2430     CYSetProperty(context, global, CYJSString("global"), global);
2431
2432 #ifdef __APPLE__
2433     if (&JSWeakObjectMapCreate != NULL) {
2434         JSWeakObjectMapRef weak(JSWeakObjectMapCreate(context, NULL, &CYDestroyWeak));
2435         CYSetProperty(context, cy, weak_s, CYCastJSValue(context, reinterpret_cast<uintptr_t>(weak)));
2436     }
2437 #endif
2438
2439     CYSetProperty(context, String_prototype, cyt_s, CYMakeType(context, sig::String()), kJSPropertyAttributeDontEnum);
2440
2441     CYSetProperty(context, cache, CYJSString("dlerror"), CYMakeFunctor(context, "dlerror", "*"), kJSPropertyAttributeDontEnum);
2442     CYSetProperty(context, cache, CYJSString("RTLD_DEFAULT"), CYCastJSValue(context, reinterpret_cast<intptr_t>(RTLD_DEFAULT)), kJSPropertyAttributeDontEnum);
2443     CYSetProperty(context, cache, CYJSString("dlsym"), CYMakeFunctor(context, "dlsym", "^v^v*"), kJSPropertyAttributeDontEnum);
2444
2445     CYSetProperty(context, cache, CYJSString("NULL"), CYJSNull(context), kJSPropertyAttributeDontEnum);
2446
2447     CYSetProperty(context, cache, CYJSString("bool"), CYMakeType(context, sig::Primitive<bool>()), kJSPropertyAttributeDontEnum);
2448     CYSetProperty(context, cache, CYJSString("char"), CYMakeType(context, sig::Primitive<char>()), kJSPropertyAttributeDontEnum);
2449     CYSetProperty(context, cache, CYJSString("schar"), CYMakeType(context, sig::Primitive<signed char>()), kJSPropertyAttributeDontEnum);
2450     CYSetProperty(context, cache, CYJSString("uchar"), CYMakeType(context, sig::Primitive<unsigned char>()), kJSPropertyAttributeDontEnum);
2451
2452     CYSetProperty(context, cache, CYJSString("short"), CYMakeType(context, sig::Primitive<short>()), kJSPropertyAttributeDontEnum);
2453     CYSetProperty(context, cache, CYJSString("int"), CYMakeType(context, sig::Primitive<int>()), kJSPropertyAttributeDontEnum);
2454     CYSetProperty(context, cache, CYJSString("long"), CYMakeType(context, sig::Primitive<long>()), kJSPropertyAttributeDontEnum);
2455     CYSetProperty(context, cache, CYJSString("longlong"), CYMakeType(context, sig::Primitive<long long>()), kJSPropertyAttributeDontEnum);
2456
2457     CYSetProperty(context, cache, CYJSString("ushort"), CYMakeType(context, sig::Primitive<unsigned short>()), kJSPropertyAttributeDontEnum);
2458     CYSetProperty(context, cache, CYJSString("uint"), CYMakeType(context, sig::Primitive<unsigned int>()), kJSPropertyAttributeDontEnum);
2459     CYSetProperty(context, cache, CYJSString("ulong"), CYMakeType(context, sig::Primitive<unsigned long>()), kJSPropertyAttributeDontEnum);
2460     CYSetProperty(context, cache, CYJSString("ulonglong"), CYMakeType(context, sig::Primitive<unsigned long long>()), kJSPropertyAttributeDontEnum);
2461
2462 #ifdef __SIZEOF_INT128__
2463     CYSetProperty(context, cache, CYJSString("int128"), CYMakeType(context, sig::Primitive<__int128>()), kJSPropertyAttributeDontEnum);
2464     CYSetProperty(context, cache, CYJSString("uint128"), CYMakeType(context, sig::Primitive<unsigned __int128>()), kJSPropertyAttributeDontEnum);
2465 #endif
2466
2467     CYSetProperty(context, cache, CYJSString("float"), CYMakeType(context, sig::Primitive<float>()), kJSPropertyAttributeDontEnum);
2468     CYSetProperty(context, cache, CYJSString("double"), CYMakeType(context, sig::Primitive<double>()), kJSPropertyAttributeDontEnum);
2469
2470     for (CYHook *hook : GetHooks())
2471         if (hook->SetupContext != NULL)
2472             (*hook->SetupContext)(context);
2473
2474     CYArrayPush(context, alls, cycript);
2475
2476     CYRunScript(context, "/libcycript.cy");
2477 }
2478
2479 static JSGlobalContextRef context_;
2480
2481 _visible JSGlobalContextRef CYGetJSContext() {
2482     CYInitializeDynamic();
2483
2484     if (context_ == NULL) {
2485         context_ = JSGlobalContextCreate(Global_);
2486         CYSetupContext(context_);
2487     }
2488
2489     return context_;
2490 }
2491
2492 _visible void CYDestroyContext() {
2493     if (context_ == NULL)
2494         return;
2495     JSGlobalContextRelease(context_);
2496     context_ = NULL;
2497 }