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