Execute.cpp

   1 /* Cycript - Optimizing JavaScript Compiler/Runtime
   2  * Copyright (C) 2009-2013  Jay Freeman (saurik)
   3 */
   4
   5 /* GNU General Public License, Version 3 {{{ */
   6 /*
   7  * Cycript is free software: you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published
   9  * by the Free Software Foundation, either version 3 of the License,
  10  * or (at your option) any later version.
  11  *
  12  * Cycript is distributed in the hope that it will be useful, but
  13  * WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with Cycript.  If not, see <http://www.gnu.org/licenses/>.
  19 **/
  20 /* }}} */
  21
  22 #include "Internal.hpp"
  23
  24 #include <dlfcn.h>
  25 #include <dirent.h>
  26 #include <fcntl.h>
  27 #include <unistd.h>
  28
  29 #include "cycript.hpp"
  30
  31 #include "sig/parse.hpp"
  32 #include "sig/ffi_type.hpp"
  33
  34 #include "Pooling.hpp"
  35 #include "Execute.hpp"
  36
  37 #include <sys/mman.h>
  38 #include <sys/stat.h>
  39
  40 #include <iostream>
  41 #include <set>
  42 #include <map>
  43 #include <iomanip>
  44 #include <sstream>
  45 #include <cmath>
  46
  47 #include "Parser.hpp"
  48
  49 #include "Decode.hpp"
  50 #include "Error.hpp"
  51 #include "JavaScript.hpp"
  52 #include "String.hpp"
  53
  54 struct CYHooks *hooks_;
  55
  56 /* JavaScript Properties {{{ */
  57 JSValueRef CYGetProperty(JSContextRef context, JSObjectRef object, size_t index) {
  58     return _jsccall(JSObjectGetPropertyAtIndex, context, object, index);
  59 }
  60
  61 JSValueRef CYGetProperty(JSContextRef context, JSObjectRef object, JSStringRef name) {
  62     return _jsccall(JSObjectGetProperty, context, object, name);
  63 }
  64
  65 void CYSetProperty(JSContextRef context, JSObjectRef object, size_t index, JSValueRef value) {
  66     _jsccall(JSObjectSetPropertyAtIndex, context, object, index, value);
  67 }
  68
  69 void CYSetProperty(JSContextRef context, JSObjectRef object, JSStringRef name, JSValueRef value, JSPropertyAttributes attributes) {
  70     _jsccall(JSObjectSetProperty, context, object, name, value, attributes);
  71 }
  72
  73 void CYSetProperty(JSContextRef context, JSObjectRef object, JSStringRef name, JSValueRef (*callback)(JSContextRef, JSObjectRef, JSObjectRef, size_t, const JSValueRef[], JSValueRef *), JSPropertyAttributes attributes) {
  74     CYSetProperty(context, object, name, JSObjectMakeFunctionWithCallback(context, name, callback), attributes);
  75 }
  76 /* }}} */
  77 /* JavaScript Strings {{{ */
  78 JSStringRef CYCopyJSString(const char *value) {
  79     return value == NULL ? NULL : JSStringCreateWithUTF8CString(value);
  80 }
  81
  82 JSStringRef CYCopyJSString(JSStringRef value) {
  83     return value == NULL ? NULL : JSStringRetain(value);
  84 }
  85
  86 JSStringRef CYCopyJSString(CYUTF8String value) {
  87     // XXX: this is very wrong; it needs to convert to UTF16 and then create from there
  88     return CYCopyJSString(value.data);
  89 }
  90
  91 JSStringRef CYCopyJSString(JSContextRef context, JSValueRef value) {
  92     if (JSValueIsNull(context, value))
  93         return NULL;
  94     return _jsccall(JSValueToStringCopy, context, value);
  95 }
  96
  97 static CYUTF16String CYCastUTF16String(JSStringRef value) {
  98     return CYUTF16String(JSStringGetCharactersPtr(value), JSStringGetLength(value));
  99 }
 100
 101 CYUTF8String CYPoolUTF8String(CYPool &pool, JSContextRef context, JSStringRef value) {
 102     return CYPoolUTF8String(pool, CYCastUTF16String(value));
 103 }
 104
 105 const char *CYPoolCString(CYPool &pool, JSContextRef context, JSStringRef value) {
 106     CYUTF8String utf8(CYPoolUTF8String(pool, context, value));
 107     _assert(memchr(utf8.data, '\0', utf8.size) == NULL);
 108     return utf8.data;
 109 }
 110
 111 const char *CYPoolCString(CYPool &pool, JSContextRef context, JSValueRef value) {
 112     return JSValueIsNull(context, value) ? NULL : CYPoolCString(pool, context, CYJSString(context, value));
 113 }
 114 /* }}} */
 115 /* Index Offsets {{{ */
 116 size_t CYGetIndex(CYPool &pool, JSContextRef context, JSStringRef value) {
 117     return CYGetIndex(CYPoolUTF8String(pool, context, value));
 118 }
 119 /* }}} */
 120
 121 static JSClassRef All_;
 122 static JSClassRef Context_;
 123 JSClassRef Functor_;
 124 static JSClassRef Global_;
 125 static JSClassRef Pointer_;
 126 static JSClassRef Struct_;
 127
 128 JSStringRef Array_s;
 129 JSStringRef cy_s;
 130 JSStringRef length_s;
 131 JSStringRef message_s;
 132 JSStringRef name_s;
 133 JSStringRef pop_s;
 134 JSStringRef prototype_s;
 135 JSStringRef push_s;
 136 JSStringRef splice_s;
 137 JSStringRef toCYON_s;
 138 JSStringRef toJSON_s;
 139 JSStringRef toPointer_s;
 140 JSStringRef toString_s;
 141
 142 static JSStringRef Result_;
 143
 144 void CYFinalize(JSObjectRef object) {
 145     CYData *internal(reinterpret_cast<CYData *>(JSObjectGetPrivate(object)));
 146     _assert(internal->count_ != _not(unsigned));
 147     if (--internal->count_ == 0)
 148         delete internal;
 149 }
 150
 151 void Structor_(CYPool &pool, sig::Type *&type) {
 152     if (
 153         type->primitive == sig::pointer_P &&
 154         type->data.data.type != NULL &&
 155         type->data.data.type->primitive == sig::struct_P &&
 156         type->data.data.type->name != NULL &&
 157         strcmp(type->data.data.type->name, "_objc_class") == 0
 158     ) {
 159         type->primitive = sig::typename_P;
 160         type->data.data.type = NULL;
 161         return;
 162     }
 163
 164     if (type->primitive != sig::struct_P || type->name == NULL)
 165         return;
 166
 167     size_t length(strlen(type->name));
 168     char keyed[length + 2];
 169     memcpy(keyed + 1, type->name, length + 1);
 170
 171     static const char *modes = "34";
 172     for (size_t i(0); i != 2; ++i) {
 173         char mode(modes[i]);
 174         keyed[0] = mode;
 175
 176         if (CYBridgeEntry *entry = CYBridgeHash(keyed, length + 1))
 177             switch (mode) {
 178                 case '3':
 179                     sig::Parse(pool, &type->data.signature, entry->value_, &Structor_);
 180                 break;
 181
 182                 case '4': {
 183                     sig::Signature signature;
 184                     sig::Parse(pool, &signature, entry->value_, &Structor_);
 185                     type = signature.elements[0].type;
 186                 } break;
 187             }
 188     }
 189 }
 190
 191 JSClassRef Type_privateData::Class_;
 192
 193 struct Context :
 194     CYData
 195 {
 196     JSGlobalContextRef context_;
 197
 198     Context(JSGlobalContextRef context) :
 199         context_(context)
 200     {
 201     }
 202 };
 203
 204 struct Pointer :
 205     CYOwned
 206 {
 207     Type_privateData *type_;
 208     size_t length_;
 209
 210     Pointer(void *value, JSContextRef context, JSObjectRef owner, size_t length, sig::Type *type) :
 211         CYOwned(value, context, owner),
 212         type_(new(*pool_) Type_privateData(type)),
 213         length_(length)
 214     {
 215     }
 216 };
 217
 218 struct Struct_privateData :
 219     CYOwned
 220 {
 221     Type_privateData *type_;
 222
 223     Struct_privateData(JSContextRef context, JSObjectRef owner) :
 224         CYOwned(NULL, context, owner)
 225     {
 226     }
 227 };
 228
 229 typedef std::map<const char *, Type_privateData *, CYCStringLess> TypeMap;
 230 static TypeMap Types_;
 231
 232 JSObjectRef CYMakeStruct(JSContextRef context, void *data, sig::Type *type, ffi_type *ffi, JSObjectRef owner) {
 233     Struct_privateData *internal(new Struct_privateData(context, owner));
 234     CYPool &pool(*internal->pool_);
 235     Type_privateData *typical(new(pool) Type_privateData(type, ffi));
 236     internal->type_ = typical;
 237
 238     if (owner != NULL)
 239         internal->value_ = data;
 240     else {
 241         size_t size(typical->GetFFI()->size);
 242         void *copy(internal->pool_->malloc<void>(size));
 243         memcpy(copy, data, size);
 244         internal->value_ = copy;
 245     }
 246
 247     return JSObjectMake(context, Struct_, internal);
 248 }
 249
 250 static void *CYCastSymbol(const char *name) {
 251     return dlsym(RTLD_DEFAULT, name);
 252 }
 253
 254 JSValueRef CYCastJSValue(JSContextRef context, bool value) {
 255     return JSValueMakeBoolean(context, value);
 256 }
 257
 258 JSValueRef CYCastJSValue(JSContextRef context, double value) {
 259     return JSValueMakeNumber(context, value);
 260 }
 261
 262 #define CYCastJSValue_(Type_) \
 263     JSValueRef CYCastJSValue(JSContextRef context, Type_ value) { \
 264         return JSValueMakeNumber(context, static_cast<double>(value)); \
 265     }
 266
 267 CYCastJSValue_(int)
 268 CYCastJSValue_(unsigned int)
 269 CYCastJSValue_(long int)
 270 CYCastJSValue_(long unsigned int)
 271 CYCastJSValue_(long long int)
 272 CYCastJSValue_(long long unsigned int)
 273
 274 JSValueRef CYJSUndefined(JSContextRef context) {
 275     return JSValueMakeUndefined(context);
 276 }
 277
 278 double CYCastDouble(JSContextRef context, JSValueRef value) {
 279     return _jsccall(JSValueToNumber, context, value);
 280 }
 281
 282 bool CYCastBool(JSContextRef context, JSValueRef value) {
 283     return JSValueToBoolean(context, value);
 284 }
 285
 286 JSValueRef CYJSNull(JSContextRef context) {
 287     return JSValueMakeNull(context);
 288 }
 289
 290 JSValueRef CYCastJSValue(JSContextRef context, JSStringRef value) {
 291     return value == NULL ? CYJSNull(context) : JSValueMakeString(context, value);
 292 }
 293
 294 JSValueRef CYCastJSValue(JSContextRef context, const char *value) {
 295     return CYCastJSValue(context, CYJSString(value));
 296 }
 297
 298 JSObjectRef CYCastJSObject(JSContextRef context, JSValueRef value) {
 299     return _jsccall(JSValueToObject, context, value);
 300 }
 301
 302 JSValueRef CYCallAsFunction(JSContextRef context, JSObjectRef function, JSObjectRef _this, size_t count, const JSValueRef arguments[]) {
 303     return _jsccall(JSObjectCallAsFunction, context, function, _this, count, arguments);
 304 }
 305
 306 bool CYIsCallable(JSContextRef context, JSValueRef value) {
 307     return value != NULL && JSValueIsObject(context, value) && JSObjectIsFunction(context, (JSObjectRef) value);
 308 }
 309
 310 size_t CYArrayLength(JSContextRef context, JSObjectRef array) {
 311     return CYCastDouble(context, CYGetProperty(context, array, length_s));
 312 }
 313
 314 JSValueRef CYArrayGet(JSContextRef context, JSObjectRef array, size_t index) {
 315     return _jsccall(JSObjectGetPropertyAtIndex, context, array, index);
 316 }
 317
 318 void CYArrayPush(JSContextRef context, JSObjectRef array, JSValueRef value) {
 319     JSValueRef arguments[1];
 320     arguments[0] = value;
 321     JSObjectRef Array(CYGetCachedObject(context, CYJSString("Array_prototype")));
 322     _jsccall(JSObjectCallAsFunction, context, CYCastJSObject(context, CYGetProperty(context, Array, push_s)), array, 1, arguments);
 323 }
 324
 325 static JSValueRef System_print(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
 326     if (count == 0)
 327         printf("\n");
 328     else {
 329         CYPool pool;
 330         printf("%s\n", CYPoolCString(pool, context, arguments[0]));
 331     }
 332
 333     return CYJSUndefined(context);
 334 } CYCatch(NULL) }
 335
 336 static size_t Nonce_(0);
 337
 338 static JSValueRef $cyq(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
 339     CYPool pool;
 340     const char *name(pool.strcat(CYPoolCString(pool, context, arguments[0]), pool.itoa(Nonce_++), NULL));
 341     return CYCastJSValue(context, name);
 342 } CYCatch(NULL) }
 343
 344 static JSValueRef Cycript_gc_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
 345     JSGarbageCollect(context);
 346     return CYJSUndefined(context);
 347 } CYCatch(NULL) }
 348
 349 const char *CYPoolCCYON(CYPool &pool, JSContextRef context, JSValueRef value, JSValueRef *exception) { CYTry {
 350     switch (JSType type = JSValueGetType(context, value)) {
 351         case kJSTypeUndefined:
 352             return "undefined";
 353         case kJSTypeNull:
 354             return "null";
 355         case kJSTypeBoolean:
 356             return CYCastBool(context, value) ? "true" : "false";
 357
 358         case kJSTypeNumber: {
 359             std::ostringstream str;
 360             CYNumerify(str, CYCastDouble(context, value));
 361             std::string value(str.str());
 362             return pool.strmemdup(value.c_str(), value.size());
 363         } break;
 364
 365         case kJSTypeString: {
 366             std::ostringstream str;
 367             CYUTF8String string(CYPoolUTF8String(pool, context, CYJSString(context, value)));
 368             CYStringify(str, string.data, string.size);
 369             std::string value(str.str());
 370             return pool.strmemdup(value.c_str(), value.size());
 371         } break;
 372
 373         case kJSTypeObject:
 374             return CYPoolCCYON(pool, context, (JSObjectRef) value);
 375         default:
 376             throw CYJSError(context, "JSValueGetType() == 0x%x", type);
 377     }
 378 } CYCatch(NULL) }
 379
 380 const char *CYPoolCCYON(CYPool &pool, JSContextRef context, JSValueRef value) {
 381     return _jsccall(CYPoolCCYON, pool, context, value);
 382 }
 383
 384 const char *CYPoolCCYON(CYPool &pool, JSContextRef context, JSObjectRef object) {
 385     JSValueRef toCYON(CYGetProperty(context, object, toCYON_s));
 386     if (CYIsCallable(context, toCYON)) {
 387         JSValueRef value(CYCallAsFunction(context, (JSObjectRef) toCYON, object, 0, NULL));
 388         _assert(value != NULL);
 389         return CYPoolCString(pool, context, value);
 390     }
 391
 392     JSValueRef toJSON(CYGetProperty(context, object, toJSON_s));
 393     if (CYIsCallable(context, toJSON)) {
 394         JSValueRef arguments[1] = {CYCastJSValue(context, CYJSString(""))};
 395         return _jsccall(CYPoolCCYON, pool, context, CYCallAsFunction(context, (JSObjectRef) toJSON, object, 1, arguments));
 396     }
 397
 398     if (JSObjectIsFunction(context, object)) {
 399         JSValueRef toString(CYGetProperty(context, object, toString_s));
 400         if (CYIsCallable(context, toString)) {
 401             JSValueRef arguments[1] = {CYCastJSValue(context, CYJSString(""))};
 402             JSValueRef value(CYCallAsFunction(context, (JSObjectRef) toString, object, 1, arguments));
 403             _assert(value != NULL);
 404             return CYPoolCString(pool, context, value);
 405         }
 406     }
 407
 408     std::ostringstream str;
 409
 410     str << '{';
 411
 412     // XXX: this is, sadly, going to leak
 413     JSPropertyNameArrayRef names(JSObjectCopyPropertyNames(context, object));
 414
 415     bool comma(false);
 416
 417     for (size_t index(0), count(JSPropertyNameArrayGetCount(names)); index != count; ++index) {
 418         if (comma)
 419             str << ',';
 420         else
 421             comma = true;
 422
 423         JSStringRef name(JSPropertyNameArrayGetNameAtIndex(names, index));
 424         CYUTF8String string(CYPoolUTF8String(pool, context, name));
 425
 426         if (CYIsKey(string))
 427             str << string.data;
 428         else
 429             CYStringify(str, string.data, string.size);
 430
 431         str << ':';
 432
 433         try {
 434             JSValueRef value(CYGetProperty(context, object, name));
 435             str << CYPoolCCYON(pool, context, value);
 436         } catch (const CYException &error) {
 437             str << "@error";
 438         }
 439     }
 440
 441     JSPropertyNameArrayRelease(names);
 442
 443     str << '}';
 444
 445     std::string string(str.str());
 446     return pool.strmemdup(string.c_str(), string.size());
 447 }
 448
 449 static JSValueRef Array_callAsFunction_toCYON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
 450     CYPool pool;
 451     std::ostringstream str;
 452
 453     str << '[';
 454
 455     JSValueRef length(CYGetProperty(context, _this, length_s));
 456     bool comma(false);
 457
 458     for (size_t index(0), count(CYCastDouble(context, length)); index != count; ++index) {
 459         if (comma)
 460             str << ',';
 461         else
 462             comma = true;
 463
 464         try {
 465             JSValueRef value(CYGetProperty(context, _this, index));
 466             if (!JSValueIsUndefined(context, value))
 467                 str << CYPoolCCYON(pool, context, value);
 468             else {
 469                 str << ',';
 470                 comma = false;
 471             }
 472         } catch (const CYException &error) {
 473             str << "@error";
 474         }
 475     }
 476
 477     str << ']';
 478
 479     std::string value(str.str());
 480     return CYCastJSValue(context, CYJSString(CYUTF8String(value.c_str(), value.size())));
 481 } CYCatch(NULL) }
 482
 483 static JSValueRef String_callAsFunction_toCYON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
 484     CYPool pool;
 485     std::ostringstream str;
 486
 487     CYUTF8String string(CYPoolUTF8String(pool, context, CYJSString(context, _this)));
 488     CYStringify(str, string.data, string.size);
 489
 490     std::string value(str.str());
 491     return CYCastJSValue(context, CYJSString(CYUTF8String(value.c_str(), value.size())));
 492 } CYCatch(NULL) }
 493
 494 JSObjectRef CYMakePointer(JSContextRef context, void *pointer, size_t length, sig::Type *type, ffi_type *ffi, JSObjectRef owner) {
 495     Pointer *internal(new Pointer(pointer, context, owner, length, type));
 496     return JSObjectMake(context, Pointer_, internal);
 497 }
 498
 499 static JSObjectRef CYMakeFunctor(JSContextRef context, void (*function)(), const sig::Signature &signature) {
 500     return JSObjectMake(context, Functor_, new cy::Functor(signature, function));
 501 }
 502
 503 static JSObjectRef CYMakeFunctor(JSContextRef context, const char *symbol, const char *encoding, void **cache) {
 504     cy::Functor *internal;
 505     if (*cache != NULL)
 506         internal = reinterpret_cast<cy::Functor *>(*cache);
 507     else {
 508         void (*function)()(reinterpret_cast<void (*)()>(CYCastSymbol(symbol)));
 509         if (function == NULL)
 510             return NULL;
 511
 512         internal = new cy::Functor(encoding, function);
 513         *cache = internal;
 514     }
 515
 516     ++internal->count_;
 517     return JSObjectMake(context, Functor_, internal);
 518 }
 519
 520 static bool CYGetOffset(CYPool &pool, JSContextRef context, JSStringRef value, ssize_t &index) {
 521     return CYGetOffset(CYPoolCString(pool, context, value), index);
 522 }
 523
 524 void *CYCastPointer_(JSContextRef context, JSValueRef value) {
 525     switch (JSValueGetType(context, value)) {
 526         case kJSTypeNull:
 527             return NULL;
 528         case kJSTypeObject: {
 529             JSObjectRef object((JSObjectRef) value);
 530             if (JSValueIsObjectOfClass(context, value, Pointer_)) {
 531                 Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(object)));
 532                 return internal->value_;
 533             }
 534             JSValueRef toPointer(CYGetProperty(context, object, toPointer_s));
 535             if (CYIsCallable(context, toPointer)) {
 536                 JSValueRef value(CYCallAsFunction(context, (JSObjectRef) toPointer, object, 0, NULL));
 537                 _assert(value != NULL);
 538                 return CYCastPointer_(context, value);
 539             }
 540         } default:
 541             double number(CYCastDouble(context, value));
 542             if (std::isnan(number))
 543                 throw CYJSError(context, "cannot convert value to pointer");
 544             return reinterpret_cast<void *>(static_cast<uintptr_t>(static_cast<long long>(number)));
 545     }
 546 }
 547
 548 void CYPoolFFI(CYPool *pool, JSContextRef context, sig::Type *type, ffi_type *ffi, void *data, JSValueRef value) {
 549     switch (type->primitive) {
 550         case sig::boolean_P:
 551             *reinterpret_cast<bool *>(data) = JSValueToBoolean(context, value);
 552         break;
 553
 554 #define CYPoolFFI_(primitive, native) \
 555         case sig::primitive ## _P: \
 556             *reinterpret_cast<native *>(data) = CYCastDouble(context, value); \
 557         break;
 558
 559         CYPoolFFI_(uchar, unsigned char)
 560         CYPoolFFI_(char, char)
 561         CYPoolFFI_(ushort, unsigned short)
 562         CYPoolFFI_(short, short)
 563         CYPoolFFI_(ulong, unsigned long)
 564         CYPoolFFI_(long, long)
 565         CYPoolFFI_(uint, unsigned int)
 566         CYPoolFFI_(int, int)
 567         CYPoolFFI_(ulonglong, unsigned long long)
 568         CYPoolFFI_(longlong, long long)
 569         CYPoolFFI_(float, float)
 570         CYPoolFFI_(double, double)
 571
 572         case sig::array_P: {
 573             uint8_t *base(reinterpret_cast<uint8_t *>(data));
 574             JSObjectRef aggregate(JSValueIsObject(context, value) ? (JSObjectRef) value : NULL);
 575             for (size_t index(0); index != type->data.data.size; ++index) {
 576                 ffi_type *field(ffi->elements[index]);
 577
 578                 JSValueRef rhs;
 579                 if (aggregate == NULL)
 580                     rhs = value;
 581                 else {
 582                     rhs = CYGetProperty(context, aggregate, index);
 583                     if (JSValueIsUndefined(context, rhs))
 584                         throw CYJSError(context, "unable to extract array value");
 585                 }
 586
 587                 CYPoolFFI(pool, context, type->data.data.type, field, base, rhs);
 588                 // XXX: alignment?
 589                 base += field->size;
 590             }
 591         } break;
 592
 593         case sig::pointer_P:
 594             *reinterpret_cast<void **>(data) = CYCastPointer<void *>(context, value);
 595         break;
 596
 597         case sig::string_P:
 598             _assert(pool != NULL);
 599             *reinterpret_cast<const char **>(data) = CYPoolCString(*pool, context, value);
 600         break;
 601
 602         case sig::struct_P: {
 603             uint8_t *base(reinterpret_cast<uint8_t *>(data));
 604             JSObjectRef aggregate(JSValueIsObject(context, value) ? (JSObjectRef) value : NULL);
 605             for (size_t index(0); index != type->data.signature.count; ++index) {
 606                 sig::Element *element(&type->data.signature.elements[index]);
 607                 ffi_type *field(ffi->elements[index]);
 608
 609                 JSValueRef rhs;
 610                 if (aggregate == NULL)
 611                     rhs = value;
 612                 else {
 613                     rhs = CYGetProperty(context, aggregate, index);
 614                     if (JSValueIsUndefined(context, rhs)) {
 615                         if (element->name != NULL)
 616                             rhs = CYGetProperty(context, aggregate, CYJSString(element->name));
 617                         else
 618                             goto undefined;
 619                         if (JSValueIsUndefined(context, rhs)) undefined:
 620                             throw CYJSError(context, "unable to extract structure value");
 621                     }
 622                 }
 623
 624                 CYPoolFFI(pool, context, element->type, field, base, rhs);
 625                 // XXX: alignment?
 626                 base += field->size;
 627             }
 628         } break;
 629
 630         case sig::void_P:
 631         break;
 632
 633         default:
 634             if (hooks_ != NULL && hooks_->PoolFFI != NULL)
 635                 if ((*hooks_->PoolFFI)(pool, context, type, ffi, data, value))
 636                     return;
 637
 638             CYThrow("unimplemented signature code: '%c''\n", type->primitive);
 639     }
 640 }
 641
 642 JSValueRef CYFromFFI(JSContextRef context, sig::Type *type, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) {
 643     switch (type->primitive) {
 644         case sig::boolean_P:
 645             return CYCastJSValue(context, *reinterpret_cast<bool *>(data));
 646
 647 #define CYFromFFI_(primitive, native) \
 648         case sig::primitive ## _P: \
 649             return CYCastJSValue(context, *reinterpret_cast<native *>(data)); \
 650
 651         CYFromFFI_(uchar, unsigned char)
 652         CYFromFFI_(char, char)
 653         CYFromFFI_(ushort, unsigned short)
 654         CYFromFFI_(short, short)
 655         CYFromFFI_(ulong, unsigned long)
 656         CYFromFFI_(long, long)
 657         CYFromFFI_(uint, unsigned int)
 658         CYFromFFI_(int, int)
 659         CYFromFFI_(ulonglong, unsigned long long)
 660         CYFromFFI_(longlong, long long)
 661         CYFromFFI_(float, float)
 662         CYFromFFI_(double, double)
 663
 664         case sig::array_P:
 665             if (void *pointer = data)
 666                 return CYMakePointer(context, pointer, type->data.data.size, type->data.data.type, NULL, owner);
 667             else goto null;
 668
 669         case sig::pointer_P:
 670             if (void *pointer = *reinterpret_cast<void **>(data))
 671                 return CYMakePointer(context, pointer, _not(size_t), type->data.data.type, NULL, owner);
 672             else goto null;
 673
 674         case sig::string_P:
 675             if (char *utf8 = *reinterpret_cast<char **>(data))
 676                 return CYCastJSValue(context, utf8);
 677             else goto null;
 678
 679         case sig::struct_P:
 680             return CYMakeStruct(context, data, type, ffi, owner);
 681         case sig::void_P:
 682             return CYJSUndefined(context);
 683
 684         null:
 685             return CYJSNull(context);
 686         default:
 687             if (hooks_ != NULL && hooks_->FromFFI != NULL)
 688                 if (JSValueRef value = (*hooks_->FromFFI)(context, type, ffi, data, initialize, owner))
 689                     return value;
 690
 691             CYThrow("unimplemented signature code: '%c''\n", type->primitive);
 692     }
 693 }
 694
 695 void CYExecuteClosure(ffi_cif *cif, void *result, void **arguments, void *arg, JSValueRef (*adapter)(JSContextRef, size_t, JSValueRef[], JSObjectRef)) {
 696     Closure_privateData *internal(reinterpret_cast<Closure_privateData *>(arg));
 697
 698     JSContextRef context(internal->context_);
 699
 700     size_t count(internal->cif_.nargs);
 701     JSValueRef values[count];
 702
 703     for (size_t index(0); index != count; ++index)
 704         values[index] = CYFromFFI(context, internal->signature_.elements[1 + index].type, internal->cif_.arg_types[index], arguments[index]);
 705
 706     JSValueRef value(adapter(context, count, values, internal->function_));
 707     CYPoolFFI(NULL, context, internal->signature_.elements[0].type, internal->cif_.rtype, result, value);
 708 }
 709
 710 static JSValueRef FunctionAdapter_(JSContextRef context, size_t count, JSValueRef values[], JSObjectRef function) {
 711     return CYCallAsFunction(context, function, NULL, count, values);
 712 }
 713
 714 static void FunctionClosure_(ffi_cif *cif, void *result, void **arguments, void *arg) {
 715     CYExecuteClosure(cif, result, arguments, arg, &FunctionAdapter_);
 716 }
 717
 718 Closure_privateData *CYMakeFunctor_(JSContextRef context, JSObjectRef function, const sig::Signature &signature, void (*callback)(ffi_cif *, void *, void **, void *)) {
 719     // XXX: in case of exceptions this will leak
 720     // XXX: in point of fact, this may /need/ to leak :(
 721     Closure_privateData *internal(new Closure_privateData(context, function, signature));
 722
 723 #if defined(__APPLE__) && (defined(__arm__) || defined(__arm64__))
 724     void *executable;
 725     ffi_closure *writable(reinterpret_cast<ffi_closure *>(ffi_closure_alloc(sizeof(ffi_closure), &executable)));
 726
 727     ffi_status status(ffi_prep_closure_loc(writable, &internal->cif_, callback, internal, executable));
 728     _assert(status == FFI_OK);
 729
 730     internal->value_ = executable;
 731 #else
 732     ffi_closure *closure((ffi_closure *) _syscall(mmap(
 733         NULL, sizeof(ffi_closure),
 734         PROT_READ | PROT_WRITE, MAP_ANON | MAP_PRIVATE,
 735         -1, 0
 736     )));
 737
 738     ffi_status status(ffi_prep_closure(closure, &internal->cif_, callback, internal));
 739     _assert(status == FFI_OK);
 740
 741     _syscall(mprotect(closure, sizeof(*closure), PROT_READ | PROT_EXEC));
 742
 743     internal->value_ = closure;
 744 #endif
 745
 746     return internal;
 747 }
 748
 749 static JSObjectRef CYMakeFunctor(JSContextRef context, JSObjectRef function, const sig::Signature &signature) {
 750     Closure_privateData *internal(CYMakeFunctor_(context, function, signature, &FunctionClosure_));
 751     JSObjectRef object(JSObjectMake(context, Functor_, internal));
 752     // XXX: see above notes about needing to leak
 753     JSValueProtect(CYGetJSContext(context), object);
 754     return object;
 755 }
 756
 757 JSObjectRef CYGetCachedObject(JSContextRef context, JSStringRef name) {
 758     return CYCastJSObject(context, CYGetProperty(context, CYCastJSObject(context, CYGetProperty(context, CYGetGlobalObject(context), cy_s)), name));
 759 }
 760
 761 static JSObjectRef CYMakeFunctor(JSContextRef context, JSValueRef value, const sig::Signature &signature) {
 762     JSObjectRef Function(CYGetCachedObject(context, CYJSString("Function")));
 763
 764     bool function(_jsccall(JSValueIsInstanceOfConstructor, context, value, Function));
 765     if (function) {
 766         JSObjectRef function(CYCastJSObject(context, value));
 767         return CYMakeFunctor(context, function, signature);
 768     } else {
 769         void (*function)()(CYCastPointer<void (*)()>(context, value));
 770         return CYMakeFunctor(context, function, signature);
 771     }
 772 }
 773
 774 static bool Index_(CYPool &pool, JSContextRef context, Struct_privateData *internal, JSStringRef property, ssize_t &index, uint8_t *&base) {
 775     Type_privateData *typical(internal->type_);
 776     sig::Type *type(typical->type_);
 777     if (type == NULL)
 778         return false;
 779
 780     const char *name(CYPoolCString(pool, context, property));
 781     size_t length(strlen(name));
 782     double number(CYCastDouble(name, length));
 783
 784     size_t count(type->data.signature.count);
 785
 786     if (std::isnan(number)) {
 787         if (property == NULL)
 788             return false;
 789
 790         sig::Element *elements(type->data.signature.elements);
 791
 792         for (size_t local(0); local != count; ++local) {
 793             sig::Element *element(&elements[local]);
 794             if (element->name != NULL && strcmp(name, element->name) == 0) {
 795                 index = local;
 796                 goto base;
 797             }
 798         }
 799
 800         return false;
 801     } else {
 802         index = static_cast<ssize_t>(number);
 803         if (index != number || index < 0 || static_cast<size_t>(index) >= count)
 804             return false;
 805     }
 806
 807   base:
 808     ffi_type **elements(typical->GetFFI()->elements);
 809
 810     base = reinterpret_cast<uint8_t *>(internal->value_);
 811     for (ssize_t local(0); local != index; ++local)
 812         base += elements[local]->size;
 813
 814     return true;
 815 }
 816
 817 static JSValueRef Pointer_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
 818     CYPool pool;
 819     Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(object)));
 820
 821     if (JSStringIsEqual(property, length_s))
 822         return internal->length_ == _not(size_t) ? CYJSUndefined(context) : CYCastJSValue(context, internal->length_);
 823
 824     Type_privateData *typical(internal->type_);
 825
 826     if (typical->type_ == NULL)
 827         return NULL;
 828
 829     ssize_t offset;
 830     if (JSStringIsEqualToUTF8CString(property, "$cyi"))
 831         offset = 0;
 832     else if (!CYGetOffset(pool, context, property, offset))
 833         return NULL;
 834
 835     ffi_type *ffi(typical->GetFFI());
 836
 837     uint8_t *base(reinterpret_cast<uint8_t *>(internal->value_));
 838     base += ffi->size * offset;
 839
 840     JSObjectRef owner(internal->GetOwner() ?: object);
 841     return CYFromFFI(context, typical->type_, ffi, base, false, owner);
 842 } CYCatch(NULL) }
 843
 844 static bool Pointer_setProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef value, JSValueRef *exception) { CYTry {
 845     CYPool pool;
 846     Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(object)));
 847     Type_privateData *typical(internal->type_);
 848
 849     if (typical->type_ == NULL)
 850         return false;
 851
 852     ssize_t offset;
 853     if (JSStringIsEqualToUTF8CString(property, "$cyi"))
 854         offset = 0;
 855     else if (!CYGetOffset(pool, context, property, offset))
 856         return false;
 857
 858     ffi_type *ffi(typical->GetFFI());
 859
 860     uint8_t *base(reinterpret_cast<uint8_t *>(internal->value_));
 861     base += ffi->size * offset;
 862
 863     CYPoolFFI(NULL, context, typical->type_, ffi, base, value);
 864     return true;
 865 } CYCatch(false) }
 866
 867 static JSValueRef Struct_callAsFunction_$cya(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
 868     Struct_privateData *internal(reinterpret_cast<Struct_privateData *>(JSObjectGetPrivate(_this)));
 869     Type_privateData *typical(internal->type_);
 870     return CYMakePointer(context, internal->value_, _not(size_t), typical->type_, typical->ffi_, _this);
 871 } CYCatch(NULL) }
 872
 873 static JSValueRef Struct_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
 874     CYPool pool;
 875     Struct_privateData *internal(reinterpret_cast<Struct_privateData *>(JSObjectGetPrivate(object)));
 876     Type_privateData *typical(internal->type_);
 877
 878     ssize_t index;
 879     uint8_t *base;
 880
 881     if (!Index_(pool, context, internal, property, index, base))
 882         return NULL;
 883
 884     JSObjectRef owner(internal->GetOwner() ?: object);
 885
 886     return CYFromFFI(context, typical->type_->data.signature.elements[index].type, typical->GetFFI()->elements[index], base, false, owner);
 887 } CYCatch(NULL) }
 888
 889 static bool Struct_setProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef value, JSValueRef *exception) { CYTry {
 890     CYPool pool;
 891     Struct_privateData *internal(reinterpret_cast<Struct_privateData *>(JSObjectGetPrivate(object)));
 892     Type_privateData *typical(internal->type_);
 893
 894     ssize_t index;
 895     uint8_t *base;
 896
 897     if (!Index_(pool, context, internal, property, index, base))
 898         return false;
 899
 900     CYPoolFFI(NULL, context, typical->type_->data.signature.elements[index].type, typical->GetFFI()->elements[index], base, value);
 901     return true;
 902 } CYCatch(false) }
 903
 904 static void Struct_getPropertyNames(JSContextRef context, JSObjectRef object, JSPropertyNameAccumulatorRef names) {
 905     Struct_privateData *internal(reinterpret_cast<Struct_privateData *>(JSObjectGetPrivate(object)));
 906     Type_privateData *typical(internal->type_);
 907     sig::Type *type(typical->type_);
 908
 909     if (type == NULL)
 910         return;
 911
 912     size_t count(type->data.signature.count);
 913     sig::Element *elements(type->data.signature.elements);
 914
 915     char number[32];
 916
 917     for (size_t index(0); index != count; ++index) {
 918         const char *name;
 919         name = elements[index].name;
 920
 921         if (name == NULL) {
 922             sprintf(number, "%zu", index);
 923             name = number;
 924         }
 925
 926         JSPropertyNameAccumulatorAddName(names, CYJSString(name));
 927     }
 928 }
 929
 930 JSValueRef CYCallFunction(CYPool &pool, JSContextRef context, size_t setups, void *setup[], size_t count, const JSValueRef arguments[], bool initialize, sig::Signature *signature, ffi_cif *cif, void (*function)()) {
 931     if (setups + count != signature->count - 1)
 932         throw CYJSError(context, "incorrect number of arguments to ffi function");
 933
 934     size_t size(setups + count);
 935     void *values[size];
 936     memcpy(values, setup, sizeof(void *) * setups);
 937
 938     for (size_t index(setups); index != size; ++index) {
 939         sig::Element *element(&signature->elements[index + 1]);
 940         ffi_type *ffi(cif->arg_types[index]);
 941         // XXX: alignment?
 942         values[index] = new(pool) uint8_t[ffi->size];
 943         CYPoolFFI(&pool, context, element->type, ffi, values[index], arguments[index - setups]);
 944     }
 945
 946     uint8_t value[cif->rtype->size];
 947
 948     if (hooks_ != NULL && hooks_->CallFunction != NULL)
 949         (*hooks_->CallFunction)(context, cif, function, value, values);
 950     else
 951         ffi_call(cif, function, value, values);
 952
 953     return CYFromFFI(context, signature->elements[0].type, cif->rtype, value, initialize);
 954 }
 955
 956 static JSValueRef Functor_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
 957     CYPool pool;
 958     cy::Functor *internal(reinterpret_cast<cy::Functor *>(JSObjectGetPrivate(object)));
 959     return CYCallFunction(pool, context, 0, NULL, count, arguments, false, &internal->signature_, &internal->cif_, internal->GetValue());
 960 } CYCatch(NULL) }
 961
 962 JSObjectRef CYMakeType(JSContextRef context, const char *encoding) {
 963     Type_privateData *internal(new Type_privateData(encoding));
 964     return JSObjectMake(context, Type_privateData::Class_, internal);
 965 }
 966
 967 JSObjectRef CYMakeType(JSContextRef context, sig::Type *type) {
 968     Type_privateData *internal(new Type_privateData(type));
 969     return JSObjectMake(context, Type_privateData::Class_, internal);
 970 }
 971
 972 JSObjectRef CYMakeType(JSContextRef context, sig::Signature *signature) {
 973     CYPool pool;
 974
 975     sig::Type type;
 976     type.name = NULL;
 977     type.flags = 0;
 978
 979     type.primitive = sig::function_P;
 980     sig::Copy(pool, type.data.signature, *signature);
 981
 982     return CYMakeType(context, &type);
 983 }
 984
 985 static JSValueRef All_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
 986     JSObjectRef global(CYGetGlobalObject(context));
 987     JSObjectRef cycript(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Cycript"))));
 988     JSObjectRef alls(CYCastJSObject(context, CYGetProperty(context, cycript, CYJSString("alls"))));
 989
 990     for (size_t i(0), count(CYArrayLength(context, alls)); i != count; ++i)
 991         if (JSObjectRef space = CYCastJSObject(context, CYArrayGet(context, alls, count - i - 1)))
 992             if (JSValueRef value = CYGetProperty(context, space, property))
 993                 if (!JSValueIsUndefined(context, value))
 994                     return value;
 995
 996     CYPool pool;
 997     CYUTF8String name(CYPoolUTF8String(pool, context, property));
 998
 999     size_t length(name.size);
1000     char keyed[length + 2];
1001     memcpy(keyed + 1, name.data, length + 1);
1002
1003     static const char *modes = "0124";
1004     for (size_t i(0); i != 4; ++i) {
1005         char mode(modes[i]);
1006         keyed[0] = mode;
1007
1008         if (CYBridgeEntry *entry = CYBridgeHash(keyed, length + 1))
1009             switch (mode) {
1010                 case '0':
1011                     return JSEvaluateScript(CYGetJSContext(context), CYJSString(entry->value_), NULL, NULL, 0, NULL);
1012
1013                 case '1':
1014                     return CYMakeFunctor(context, name.data, entry->value_, &entry->cache_);
1015
1016                 case '2':
1017                     if (void *symbol = CYCastSymbol(name.data)) {
1018                         // XXX: this is horrendously inefficient
1019                         sig::Signature signature;
1020                         sig::Parse(pool, &signature, entry->value_, &Structor_);
1021                         ffi_cif cif;
1022                         sig::sig_ffi_cif(pool, &sig::ObjectiveC, &signature, &cif);
1023                         return CYFromFFI(context, signature.elements[0].type, cif.rtype, symbol);
1024                     } else return NULL;
1025
1026                 // XXX: implement case 3
1027                 case '4':
1028                     return CYMakeType(context, entry->value_);
1029             }
1030     }
1031
1032     return NULL;
1033 } CYCatch(NULL) }
1034
1035 static void All_getPropertyNames(JSContextRef context, JSObjectRef object, JSPropertyNameAccumulatorRef names) {
1036     JSObjectRef global(CYGetGlobalObject(context));
1037     JSObjectRef cycript(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Cycript"))));
1038     JSObjectRef alls(CYCastJSObject(context, CYGetProperty(context, cycript, CYJSString("alls"))));
1039
1040     for (size_t i(0), count(CYArrayLength(context, alls)); i != count; ++i)
1041         if (JSObjectRef space = CYCastJSObject(context, CYArrayGet(context, alls, count - i - 1))) {
1042             JSPropertyNameArrayRef subset(JSObjectCopyPropertyNames(context, space));
1043             for (size_t index(0), count(JSPropertyNameArrayGetCount(subset)); index != count; ++index)
1044                 JSPropertyNameAccumulatorAddName(names, JSPropertyNameArrayGetNameAtIndex(subset, index));
1045             JSPropertyNameArrayRelease(subset);
1046         }
1047 }
1048
1049 static JSObjectRef Pointer_new(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1050     if (count != 2)
1051         throw CYJSError(context, "incorrect number of arguments to Pointer constructor");
1052
1053     CYPool pool;
1054
1055     void *value(CYCastPointer<void *>(context, arguments[0]));
1056     const char *type(CYPoolCString(pool, context, arguments[1]));
1057
1058     sig::Signature signature;
1059     sig::Parse(pool, &signature, type, &Structor_);
1060
1061     return CYMakePointer(context, value, _not(size_t), signature.elements[0].type, NULL, NULL);
1062 } CYCatch(NULL) }
1063
1064 static JSObjectRef Type_new(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1065     if (count != 1)
1066         throw CYJSError(context, "incorrect number of arguments to Type constructor");
1067     CYPool pool;
1068     const char *type(CYPoolCString(pool, context, arguments[0]));
1069     return CYMakeType(context, type);
1070 } CYCatch(NULL) }
1071
1072 static JSValueRef Type_callAsFunction_$With(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], sig::Primitive primitive, JSValueRef *exception) { CYTry {
1073     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1074
1075     CYPool pool;
1076
1077     sig::Type type;
1078     type.name = NULL;
1079     type.flags = 0;
1080
1081     type.primitive = primitive;
1082     type.data.signature.elements = new(pool) sig::Element[1 + count];
1083     type.data.signature.count = 1 + count;
1084
1085     type.data.signature.elements[0].name = NULL;
1086     type.data.signature.elements[0].type = internal->type_;
1087     type.data.signature.elements[0].offset = _not(size_t);
1088
1089     for (size_t i(0); i != count; ++i) {
1090         sig::Element &element(type.data.signature.elements[i + 1]);
1091         element.name = NULL;
1092         element.offset = _not(size_t);
1093
1094         JSObjectRef object(CYCastJSObject(context, arguments[i]));
1095         _assert(JSValueIsObjectOfClass(context, object, Type_privateData::Class_));
1096         Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
1097
1098         element.type = internal->type_;
1099     }
1100
1101     return CYMakeType(context, &type);
1102 } CYCatch(NULL) }
1103
1104 static JSValueRef Type_callAsFunction_arrayOf(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1105     if (count != 1)
1106         throw CYJSError(context, "incorrect number of arguments to Type.arrayOf");
1107     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1108
1109     CYPool pool;
1110     size_t index(CYGetIndex(pool, context, CYJSString(context, arguments[0])));
1111     if (index == _not(size_t))
1112         throw CYJSError(context, "invalid array size used with Type.arrayOf");
1113
1114     sig::Type type;
1115     type.name = NULL;
1116     type.flags = 0;
1117
1118     type.primitive = sig::array_P;
1119     type.data.data.type = internal->type_;
1120     type.data.data.size = index;
1121
1122     return CYMakeType(context, &type);
1123 } CYCatch(NULL) }
1124
1125 static JSValueRef Type_callAsFunction_blockWith(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
1126     return Type_callAsFunction_$With(context, object, _this, count, arguments, sig::block_P, exception);
1127 }
1128
1129 static JSValueRef Type_callAsFunction_constant(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1130     if (count != 0)
1131         throw CYJSError(context, "incorrect number of arguments to Type.constant");
1132     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1133
1134     sig::Type type(*internal->type_);
1135     type.flags |= JOC_TYPE_CONST;
1136     return CYMakeType(context, &type);
1137 } CYCatch(NULL) }
1138
1139 static JSValueRef Type_callAsFunction_functionWith(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
1140     return Type_callAsFunction_$With(context, object, _this, count, arguments, sig::function_P, exception);
1141 }
1142
1143 static JSValueRef Type_callAsFunction_pointerTo(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1144     if (count != 0)
1145         throw CYJSError(context, "incorrect number of arguments to Type.pointerTo");
1146     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1147
1148     sig::Type type;
1149     type.name = NULL;
1150
1151     if (internal->type_->primitive == sig::char_P) {
1152         type.flags = internal->type_->flags;
1153         type.primitive = sig::string_P;
1154         type.data.data.type = NULL;
1155         type.data.data.size = 0;
1156     } else {
1157         type.flags = 0;
1158         type.primitive = sig::pointer_P;
1159         type.data.data.type = internal->type_;
1160         type.data.data.size = 0;
1161     }
1162
1163     return CYMakeType(context, &type);
1164 } CYCatch(NULL) }
1165
1166 static JSValueRef Type_callAsFunction_withName(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1167     if (count != 1)
1168         throw CYJSError(context, "incorrect number of arguments to Type.withName");
1169     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1170
1171     CYPool pool;
1172     const char *name(CYPoolCString(pool, context, arguments[0]));
1173
1174     sig::Type type(*internal->type_);
1175     type.name = name;
1176     return CYMakeType(context, &type);
1177 } CYCatch(NULL) }
1178
1179 static JSValueRef Type_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1180     if (count != 1)
1181         throw CYJSError(context, "incorrect number of arguments to type cast function");
1182     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
1183
1184     if (internal->type_->primitive == sig::function_P)
1185         return CYMakeFunctor(context, arguments[0], internal->type_->data.signature);
1186
1187     sig::Type *type(internal->type_);
1188     ffi_type *ffi(internal->GetFFI());
1189     // XXX: alignment?
1190     uint8_t value[ffi->size];
1191     CYPool pool;
1192     CYPoolFFI(&pool, context, type, ffi, value, arguments[0]);
1193     return CYFromFFI(context, type, ffi, value);
1194 } CYCatch(NULL) }
1195
1196 static JSObjectRef Type_callAsConstructor(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1197     if (count != 0)
1198         throw CYJSError(context, "incorrect number of arguments to Type allocator");
1199     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
1200
1201     sig::Type *type(internal->type_);
1202     size_t length;
1203
1204     if (type->primitive != sig::array_P)
1205         length = _not(size_t);
1206     else {
1207         length = type->data.data.size;
1208         type = type->data.data.type;
1209     }
1210
1211     void *value(calloc(1, internal->GetFFI()->size));
1212     return CYMakePointer(context, value, length, type, NULL, NULL);
1213 } CYCatch(NULL) }
1214
1215 static JSObjectRef Functor_new(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1216     if (count != 2)
1217         throw CYJSError(context, "incorrect number of arguments to Functor constructor");
1218     CYPool pool;
1219     const char *encoding(CYPoolCString(pool, context, arguments[1]));
1220     sig::Signature signature;
1221     sig::Parse(pool, &signature, encoding, &Structor_);
1222     return CYMakeFunctor(context, arguments[0], signature);
1223 } CYCatch(NULL) }
1224
1225 static JSValueRef CYValue_callAsFunction_valueOf(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1226     CYValue *internal(reinterpret_cast<CYValue *>(JSObjectGetPrivate(_this)));
1227     return CYCastJSValue(context, reinterpret_cast<uintptr_t>(internal->value_));
1228 } CYCatch(NULL) }
1229
1230 static JSValueRef CYValue_callAsFunction_toJSON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
1231     return CYValue_callAsFunction_valueOf(context, object, _this, count, arguments, exception);
1232 }
1233
1234 static JSValueRef CYValue_callAsFunction_toCYON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1235     CYValue *internal(reinterpret_cast<CYValue *>(JSObjectGetPrivate(_this)));
1236     char string[32];
1237     sprintf(string, "%p", internal->value_);
1238     return CYCastJSValue(context, string);
1239 } CYCatch(NULL) }
1240
1241 static JSValueRef Pointer_callAsFunction_toCYON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1242     Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(_this)));
1243     if (internal->length_ != _not(size_t)) {
1244         JSObjectRef Array(CYGetCachedObject(context, CYJSString("Array_prototype")));
1245         JSObjectRef toCYON(CYCastJSObject(context, CYGetProperty(context, Array, toCYON_s)));
1246         return CYCallAsFunction(context, toCYON, _this, count, arguments);
1247     } else {
1248         char string[32];
1249         sprintf(string, "%p", internal->value_);
1250         return CYCastJSValue(context, string);
1251     }
1252 } CYCatch(NULL) }
1253
1254 static JSValueRef Functor_getProperty_type(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1255     cy::Functor *internal(reinterpret_cast<cy::Functor *>(JSObjectGetPrivate(object)));
1256     return CYMakeType(context, &internal->signature_);
1257 } CYCatch(NULL) }
1258
1259 static JSValueRef Type_getProperty_alignment(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1260     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
1261     return CYCastJSValue(context, internal->GetFFI()->alignment);
1262 } CYCatch(NULL) }
1263
1264 static JSValueRef Type_getProperty_name(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1265     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
1266     return CYCastJSValue(context, internal->type_->name);
1267 } CYCatch(NULL) }
1268
1269 static JSValueRef Type_getProperty_size(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1270     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
1271     return CYCastJSValue(context, internal->GetFFI()->size);
1272 } CYCatch(NULL) }
1273
1274 static JSValueRef Type_callAsFunction_toString(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1275     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1276     CYPool pool;
1277     const char *type(sig::Unparse(pool, internal->type_));
1278     return CYCastJSValue(context, CYJSString(type));
1279 } CYCatch(NULL) }
1280
1281 static JSValueRef Type_callAsFunction_toCYON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1282     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1283     CYLocalPool pool;
1284     std::ostringstream out;
1285     CYOptions options;
1286     CYOutput output(out, options);
1287     (new(pool) CYEncodedType(Decode(pool, internal->type_)))->Output(output, CYNoFlags);
1288     return CYCastJSValue(context, CYJSString(out.str().c_str()));
1289 } CYCatch(NULL) }
1290
1291 static JSValueRef Type_callAsFunction_toJSON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
1292     return Type_callAsFunction_toString(context, object, _this, count, arguments, exception);
1293 }
1294
1295 static JSStaticFunction Pointer_staticFunctions[4] = {
1296     {"toCYON", &Pointer_callAsFunction_toCYON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1297     {"toJSON", &CYValue_callAsFunction_toJSON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1298     {"valueOf", &CYValue_callAsFunction_valueOf, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1299     {NULL, NULL, 0}
1300 };
1301
1302 static JSStaticFunction Struct_staticFunctions[2] = {
1303     {"$cya", &Struct_callAsFunction_$cya, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1304     {NULL, NULL, 0}
1305 };
1306
1307 static JSStaticFunction Functor_staticFunctions[4] = {
1308     {"toCYON", &CYValue_callAsFunction_toCYON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1309     {"toJSON", &CYValue_callAsFunction_toJSON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1310     {"valueOf", &CYValue_callAsFunction_valueOf, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1311     {NULL, NULL, 0}
1312 };
1313
1314 namespace cy {
1315     JSStaticFunction const * const Functor::StaticFunctions = Functor_staticFunctions;
1316 }
1317
1318 static JSStaticValue Functor_staticValues[2] = {
1319     {"type", &Functor_getProperty_type, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1320     {NULL, NULL, NULL, 0}
1321 };
1322
1323 static JSStaticValue Type_staticValues[4] = {
1324     {"alignment", &Type_getProperty_alignment, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1325     {"name", &Type_getProperty_name, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1326     {"size", &Type_getProperty_size, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1327     {NULL, NULL, NULL, 0}
1328 };
1329
1330 static JSStaticFunction Type_staticFunctions[10] = {
1331     {"arrayOf", &Type_callAsFunction_arrayOf, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1332     {"blockWith", &Type_callAsFunction_blockWith, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1333     {"constant", &Type_callAsFunction_constant, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1334     {"functionWith", &Type_callAsFunction_functionWith, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1335     {"pointerTo", &Type_callAsFunction_pointerTo, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1336     {"withName", &Type_callAsFunction_withName, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1337     {"toCYON", &Type_callAsFunction_toCYON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1338     {"toJSON", &Type_callAsFunction_toJSON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1339     {"toString", &Type_callAsFunction_toString, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1340     {NULL, NULL, 0}
1341 };
1342
1343 static JSObjectRef (*JSObjectMakeArray$)(JSContextRef, size_t, const JSValueRef[], JSValueRef *);
1344
1345 void CYSetArgs(int argc, const char *argv[]) {
1346     JSContextRef context(CYGetJSContext());
1347     JSValueRef args[argc];
1348     for (int i(0); i != argc; ++i)
1349         args[i] = CYCastJSValue(context, argv[i]);
1350
1351     JSObjectRef array;
1352     if (JSObjectMakeArray$ != NULL)
1353         array = _jsccall(*JSObjectMakeArray$, context, argc, args);
1354     else {
1355         JSObjectRef Array(CYGetCachedObject(context, CYJSString("Array")));
1356         JSValueRef value(CYCallAsFunction(context, Array, NULL, argc, args));
1357         array = CYCastJSObject(context, value);
1358     }
1359
1360     JSObjectRef System(CYGetCachedObject(context, CYJSString("System")));
1361     CYSetProperty(context, System, CYJSString("args"), array);
1362 }
1363
1364 JSObjectRef CYGetGlobalObject(JSContextRef context) {
1365     return JSContextGetGlobalObject(context);
1366 }
1367
1368 const char *CYExecute(JSContextRef context, CYPool &pool, CYUTF8String code) {
1369     JSValueRef exception(NULL);
1370
1371     void *handle;
1372     if (hooks_ != NULL && hooks_->ExecuteStart != NULL)
1373         handle = (*hooks_->ExecuteStart)(context);
1374     else
1375         handle = NULL;
1376
1377     try {
1378
1379     JSValueRef result;
1380     try {
1381         result = JSEvaluateScript(context, CYJSString(code), NULL, NULL, 0, &exception);
1382     } catch (const char *error) {
1383         return error;
1384     }
1385
1386     if (exception != NULL) error:
1387         return CYPoolCString(pool, context, CYJSString(context, exception));
1388
1389     if (JSValueIsUndefined(context, result))
1390         return NULL;
1391
1392     const char *json;
1393     try {
1394         json = CYPoolCCYON(pool, context, result, &exception);
1395     } catch (const char *error) {
1396         return error;
1397     }
1398
1399     if (exception != NULL)
1400         goto error;
1401
1402     CYSetProperty(context, CYGetGlobalObject(context), Result_, result);
1403
1404     return json;
1405
1406     } catch (...) {
1407         if (hooks_ != NULL && hooks_->ExecuteEnd != NULL)
1408             (*hooks_->ExecuteEnd)(context, handle);
1409         throw;
1410     }
1411 }
1412
1413 static bool initialized_ = false;
1414
1415 void CYInitializeDynamic() {
1416     if (!initialized_)
1417         initialized_ = true;
1418     else return;
1419
1420     JSObjectMakeArray$ = reinterpret_cast<JSObjectRef (*)(JSContextRef, size_t, const JSValueRef[], JSValueRef *)>(dlsym(RTLD_DEFAULT, "JSObjectMakeArray"));
1421
1422     JSClassDefinition definition;
1423
1424     definition = kJSClassDefinitionEmpty;
1425     definition.className = "All";
1426     definition.getProperty = &All_getProperty;
1427     definition.getPropertyNames = &All_getPropertyNames;
1428     All_ = JSClassCreate(&definition);
1429
1430     definition = kJSClassDefinitionEmpty;
1431     definition.className = "Context";
1432     definition.finalize = &CYFinalize;
1433     Context_ = JSClassCreate(&definition);
1434
1435     definition = kJSClassDefinitionEmpty;
1436     definition.className = "Functor";
1437     definition.staticFunctions = cy::Functor::StaticFunctions;
1438     definition.staticValues = Functor_staticValues;
1439     definition.callAsFunction = &Functor_callAsFunction;
1440     definition.finalize = &CYFinalize;
1441     Functor_ = JSClassCreate(&definition);
1442
1443     definition = kJSClassDefinitionEmpty;
1444     definition.className = "Pointer";
1445     definition.staticFunctions = Pointer_staticFunctions;
1446     definition.getProperty = &Pointer_getProperty;
1447     definition.setProperty = &Pointer_setProperty;
1448     definition.finalize = &CYFinalize;
1449     Pointer_ = JSClassCreate(&definition);
1450
1451     definition = kJSClassDefinitionEmpty;
1452     definition.className = "Struct";
1453     definition.staticFunctions = Struct_staticFunctions;
1454     definition.getProperty = &Struct_getProperty;
1455     definition.setProperty = &Struct_setProperty;
1456     definition.getPropertyNames = &Struct_getPropertyNames;
1457     definition.finalize = &CYFinalize;
1458     Struct_ = JSClassCreate(&definition);
1459
1460     definition = kJSClassDefinitionEmpty;
1461     definition.className = "Type";
1462     definition.staticValues = Type_staticValues;
1463     definition.staticFunctions = Type_staticFunctions;
1464     definition.callAsFunction = &Type_callAsFunction;
1465     definition.callAsConstructor = &Type_callAsConstructor;
1466     definition.finalize = &CYFinalize;
1467     Type_privateData::Class_ = JSClassCreate(&definition);
1468
1469     definition = kJSClassDefinitionEmpty;
1470     definition.className = "Global";
1471     //definition.getProperty = &Global_getProperty;
1472     Global_ = JSClassCreate(&definition);
1473
1474     Array_s = JSStringCreateWithUTF8CString("Array");
1475     cy_s = JSStringCreateWithUTF8CString("$cy");
1476     length_s = JSStringCreateWithUTF8CString("length");
1477     message_s = JSStringCreateWithUTF8CString("message");
1478     name_s = JSStringCreateWithUTF8CString("name");
1479     pop_s = JSStringCreateWithUTF8CString("pop");
1480     prototype_s = JSStringCreateWithUTF8CString("prototype");
1481     push_s = JSStringCreateWithUTF8CString("push");
1482     splice_s = JSStringCreateWithUTF8CString("splice");
1483     toCYON_s = JSStringCreateWithUTF8CString("toCYON");
1484     toJSON_s = JSStringCreateWithUTF8CString("toJSON");
1485     toPointer_s = JSStringCreateWithUTF8CString("toPointer");
1486     toString_s = JSStringCreateWithUTF8CString("toString");
1487
1488     Result_ = JSStringCreateWithUTF8CString("_");
1489
1490     if (hooks_ != NULL && hooks_->Initialize != NULL)
1491         (*hooks_->Initialize)();
1492 }
1493
1494 void CYThrow(JSContextRef context, JSValueRef value) {
1495     if (value != NULL)
1496         throw CYJSError(context, value);
1497 }
1498
1499 const char *CYJSError::PoolCString(CYPool &pool) const {
1500     // XXX: this used to be CYPoolCString
1501     return CYPoolCCYON(pool, context_, value_);
1502 }
1503
1504 JSValueRef CYJSError::CastJSValue(JSContextRef context) const {
1505     // XXX: what if the context is different?
1506     return value_;
1507 }
1508
1509 JSValueRef CYCastJSError(JSContextRef context, const char *message) {
1510     JSObjectRef Error(CYGetCachedObject(context, CYJSString("Error")));
1511     JSValueRef arguments[1] = {CYCastJSValue(context, message)};
1512     return _jsccall(JSObjectCallAsConstructor, context, Error, 1, arguments);
1513 }
1514
1515 JSValueRef CYPoolError::CastJSValue(JSContextRef context) const {
1516     return CYCastJSError(context, message_);
1517 }
1518
1519 CYJSError::CYJSError(JSContextRef context, const char *format, ...) {
1520     _assert(context != NULL);
1521
1522     CYPool pool;
1523
1524     va_list args;
1525     va_start(args, format);
1526     // XXX: there might be a beter way to think about this
1527     const char *message(pool.vsprintf(64, format, args));
1528     va_end(args);
1529
1530     value_ = CYCastJSError(context, message);
1531 }
1532
1533 JSGlobalContextRef CYGetJSContext(JSContextRef context) {
1534     return reinterpret_cast<Context *>(JSObjectGetPrivate(CYCastJSObject(context, CYGetProperty(context, CYGetGlobalObject(context), cy_s))))->context_;
1535 }
1536
1537 extern "C" bool CydgetMemoryParse(const uint16_t **data, size_t *size);
1538
1539 void *CYMapFile(const char *path, size_t *psize) {
1540     int fd;
1541     _syscall(fd = open(path, O_RDONLY));
1542
1543     struct stat stat;
1544     _syscall(fstat(fd, &stat));
1545     size_t size(stat.st_size);
1546
1547     *psize = size;
1548
1549     void *base;
1550     _syscall(base = mmap(NULL, size, PROT_READ, MAP_SHARED, fd, 0));
1551
1552     _syscall(close(fd));
1553     return base;
1554 }
1555
1556 static void CYRunSetups(JSContextRef context) {
1557     std::string folder("/etc/cycript/setup.d");
1558     DIR *setups(opendir(folder.c_str()));
1559     if (setups == NULL)
1560         return;
1561
1562     for (;;) {
1563         dirent setup;
1564         dirent *result;
1565         _syscall(readdir_r(setups, &setup, &result));
1566
1567         if (result == NULL)
1568             break;
1569         _assert(result == &setup);
1570
1571         const char *name(setup.d_name);
1572         size_t length(strlen(name));
1573         if (length < 4)
1574             continue;
1575
1576         if (name[0] == '.')
1577             continue;
1578         if (memcmp(name + length - 3, ".cy", 3) != 0)
1579             continue;
1580
1581         std::string script(folder + "/" + name);
1582         CYUTF8String utf8;
1583         utf8.data = reinterpret_cast<char *>(CYMapFile(script.c_str(), &utf8.size));
1584
1585         CYPool pool;
1586         CYUTF16String utf16(CYPoolUTF16String(pool, utf8));
1587         munmap(const_cast<char *>(utf8.data), utf8.size);
1588
1589         // XXX: this should not be used
1590         CydgetMemoryParse(&utf16.data, &utf16.size);
1591
1592         CYExecute(context, pool, CYPoolUTF8String(pool, utf16));
1593         free(const_cast<uint16_t *>(utf16.data));
1594     }
1595
1596     _syscall(closedir(setups));
1597 }
1598
1599 static JSValueRef require(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1600     _assert(count == 1);
1601     CYPool pool;
1602
1603     Dl_info addr;
1604     _assert(dladdr(reinterpret_cast<void *>(&require), &addr) != 0);
1605     char *lib(pool.strdup(addr.dli_fname));
1606
1607     char *slash(strrchr(lib, '/'));
1608     _assert(slash != NULL);
1609     *slash = '\0';
1610
1611     CYJSString property("exports");
1612     JSObjectRef module;
1613
1614     const char *path(pool.strcat(lib, "/cycript/", CYPoolCString(pool, context, arguments[0]), ".cy", NULL));
1615     CYJSString key(path);
1616     JSObjectRef modules(CYGetCachedObject(context, CYJSString("modules")));
1617     JSValueRef cache(CYGetProperty(context, modules, key));
1618
1619     if (!JSValueIsUndefined(context, cache))
1620         module = CYCastJSObject(context, cache);
1621     else {
1622         CYUTF8String code;
1623         code.data = reinterpret_cast<char *>(CYMapFile(path, &code.size));
1624
1625         std::stringstream wrap;
1626         wrap << "(function (exports, require, module) { " << code << "\n});";
1627         code = CYPoolCode(pool, wrap.str().c_str());
1628
1629         JSValueRef value(_jsccall(JSEvaluateScript, context, CYJSString(code), NULL, NULL, 0));
1630         JSObjectRef function(CYCastJSObject(context, value));
1631
1632         module = JSObjectMake(context, NULL, NULL);
1633         JSObjectRef exports(JSObjectMake(context, NULL, NULL));
1634         CYSetProperty(context, module, property, exports);
1635
1636         JSValueRef arguments[3] = { exports, JSObjectMakeFunctionWithCallback(context, CYJSString("require"), &require), module };
1637         CYCallAsFunction(context, function, NULL, 3, arguments);
1638         CYSetProperty(context, modules, key, module);
1639     }
1640
1641     return CYGetProperty(context, module, property);
1642 } CYCatch(NULL) }
1643
1644 extern "C" void CYSetupContext(JSGlobalContextRef context) {
1645     CYInitializeDynamic();
1646
1647     JSObjectRef global(CYGetGlobalObject(context));
1648
1649     JSObjectRef cy(JSObjectMake(context, Context_, new Context(context)));
1650     CYSetProperty(context, global, cy_s, cy, kJSPropertyAttributeDontEnum);
1651
1652 /* Cache Globals {{{ */
1653     JSObjectRef Array(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Array"))));
1654     CYSetProperty(context, cy, CYJSString("Array"), Array);
1655
1656     JSObjectRef Array_prototype(CYCastJSObject(context, CYGetProperty(context, Array, prototype_s)));
1657     CYSetProperty(context, cy, CYJSString("Array_prototype"), Array_prototype);
1658
1659     JSObjectRef Error(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Error"))));
1660     CYSetProperty(context, cy, CYJSString("Error"), Error);
1661
1662     JSObjectRef Function(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Function"))));
1663     CYSetProperty(context, cy, CYJSString("Function"), Function);
1664
1665     JSObjectRef Function_prototype(CYCastJSObject(context, CYGetProperty(context, Function, prototype_s)));
1666     CYSetProperty(context, cy, CYJSString("Function_prototype"), Function_prototype);
1667
1668     JSObjectRef Object(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Object"))));
1669     CYSetProperty(context, cy, CYJSString("Object"), Object);
1670
1671     JSObjectRef Object_prototype(CYCastJSObject(context, CYGetProperty(context, Object, prototype_s)));
1672     CYSetProperty(context, cy, CYJSString("Object_prototype"), Object_prototype);
1673
1674     JSObjectRef String(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("String"))));
1675     CYSetProperty(context, cy, CYJSString("String"), String);
1676
1677     JSObjectRef String_prototype(CYCastJSObject(context, CYGetProperty(context, String, prototype_s)));
1678     CYSetProperty(context, cy, CYJSString("String_prototype"), String_prototype);
1679 /* }}} */
1680
1681     CYSetProperty(context, Array_prototype, toCYON_s, &Array_callAsFunction_toCYON, kJSPropertyAttributeDontEnum);
1682     CYSetProperty(context, String_prototype, toCYON_s, &String_callAsFunction_toCYON, kJSPropertyAttributeDontEnum);
1683
1684     JSObjectRef cycript(JSObjectMake(context, NULL, NULL));
1685     CYSetProperty(context, global, CYJSString("Cycript"), cycript);
1686     CYSetProperty(context, cycript, CYJSString("gc"), &Cycript_gc_callAsFunction);
1687
1688     JSObjectRef Functor(JSObjectMakeConstructor(context, Functor_, &Functor_new));
1689     JSObjectSetPrototype(context, CYCastJSObject(context, CYGetProperty(context, Functor, prototype_s)), Function_prototype);
1690     CYSetProperty(context, cycript, CYJSString("Functor"), Functor);
1691
1692     CYSetProperty(context, cycript, CYJSString("Pointer"), JSObjectMakeConstructor(context, Pointer_, &Pointer_new));
1693     CYSetProperty(context, cycript, CYJSString("Type"), JSObjectMakeConstructor(context, Type_privateData::Class_, &Type_new));
1694
1695     JSObjectRef modules(JSObjectMake(context, NULL, NULL));
1696     CYSetProperty(context, cy, CYJSString("modules"), modules);
1697
1698     JSObjectRef all(JSObjectMake(context, All_, NULL));
1699     CYSetProperty(context, cycript, CYJSString("all"), all);
1700
1701     JSObjectRef alls(_jsccall(JSObjectCallAsConstructor, context, Array, 0, NULL));
1702     CYSetProperty(context, cycript, CYJSString("alls"), alls);
1703
1704     if (true) {
1705         JSObjectRef last(NULL), curr(global);
1706
1707         goto next; for (JSValueRef next;;) {
1708             if (JSValueIsNull(context, next))
1709                 break;
1710             last = curr;
1711             curr = CYCastJSObject(context, next);
1712           next:
1713             next = JSObjectGetPrototype(context, curr);
1714         }
1715
1716         JSObjectSetPrototype(context, last, all);
1717     }
1718
1719     CYSetProperty(context, global, CYJSString("$cyq"), &$cyq, kJSPropertyAttributeDontEnum);
1720
1721     JSObjectRef System(JSObjectMake(context, NULL, NULL));
1722     CYSetProperty(context, cy, CYJSString("System"), System);
1723
1724     CYSetProperty(context, all, CYJSString("require"), &require, kJSPropertyAttributeDontEnum);
1725
1726     CYSetProperty(context, global, CYJSString("system"), System);
1727     CYSetProperty(context, System, CYJSString("args"), CYJSNull(context));
1728     //CYSetProperty(context, System, CYJSString("global"), global);
1729     CYSetProperty(context, System, CYJSString("print"), &System_print);
1730
1731     if (CYBridgeEntry *entry = CYBridgeHash("1dlerror", 8))
1732         entry->cache_ = new cy::Functor(entry->value_, reinterpret_cast<void (*)()>(&dlerror));
1733
1734     if (hooks_ != NULL && hooks_->SetupContext != NULL)
1735         (*hooks_->SetupContext)(context);
1736
1737     CYArrayPush(context, alls, cycript);
1738
1739     CYRunSetups(context);
1740 }
1741
1742 JSGlobalContextRef CYGetJSContext() {
1743     CYInitializeDynamic();
1744
1745     static JSGlobalContextRef context_;
1746
1747     if (context_ == NULL) {
1748         context_ = JSGlobalContextCreate(Global_);
1749         CYSetupContext(context_);
1750     }
1751
1752     return context_;
1753 }