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_arrayOf(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1073     if (count != 1)
1074         throw CYJSError(context, "incorrect number of arguments to Type.arrayOf");
1075     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1076
1077     CYPool pool;
1078     size_t index(CYGetIndex(pool, context, CYJSString(context, arguments[0])));
1079     if (index == _not(size_t))
1080         throw CYJSError(context, "invalid array size used with Type.arrayOf");
1081
1082     sig::Type type;
1083     type.name = NULL;
1084     type.flags = 0;
1085
1086     type.primitive = sig::array_P;
1087     type.data.data.type = internal->type_;
1088     type.data.data.size = index;
1089
1090     return CYMakeType(context, &type);
1091 } CYCatch(NULL) }
1092
1093 static JSValueRef Type_callAsFunction_constant(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1094     if (count != 0)
1095         throw CYJSError(context, "incorrect number of arguments to Type.constant");
1096     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1097
1098     sig::Type type(*internal->type_);
1099     type.flags |= JOC_TYPE_CONST;
1100     return CYMakeType(context, &type);
1101 } CYCatch(NULL) }
1102
1103 static JSValueRef Type_callAsFunction_functionWith(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1104     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1105
1106     CYPool pool;
1107
1108     sig::Type type;
1109     type.name = NULL;
1110     type.flags = 0;
1111
1112     type.primitive = sig::function_P;
1113     type.data.signature.elements = new(pool) sig::Element[1 + count];
1114     type.data.signature.count = 1 + count;
1115
1116     type.data.signature.elements[0].name = NULL;
1117     type.data.signature.elements[0].type = internal->type_;
1118     type.data.signature.elements[0].offset = _not(size_t);
1119
1120     for (size_t i(0); i != count; ++i) {
1121         sig::Element &element(type.data.signature.elements[i + 1]);
1122         element.name = NULL;
1123         element.offset = _not(size_t);
1124
1125         JSObjectRef object(CYCastJSObject(context, arguments[i]));
1126         _assert(JSValueIsObjectOfClass(context, object, Type_privateData::Class_));
1127         Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
1128
1129         element.type = internal->type_;
1130     }
1131
1132     return CYMakeType(context, &type);
1133 } CYCatch(NULL) }
1134
1135 static JSValueRef Type_callAsFunction_pointerTo(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1136     if (count != 0)
1137         throw CYJSError(context, "incorrect number of arguments to Type.pointerTo");
1138     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1139
1140     sig::Type type;
1141     type.name = NULL;
1142
1143     if (internal->type_->primitive == sig::char_P) {
1144         type.flags = internal->type_->flags;
1145         type.primitive = sig::string_P;
1146         type.data.data.type = NULL;
1147         type.data.data.size = 0;
1148     } else {
1149         type.flags = 0;
1150         type.primitive = sig::pointer_P;
1151         type.data.data.type = internal->type_;
1152         type.data.data.size = 0;
1153     }
1154
1155     return CYMakeType(context, &type);
1156 } CYCatch(NULL) }
1157
1158 static JSValueRef Type_callAsFunction_withName(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1159     if (count != 1)
1160         throw CYJSError(context, "incorrect number of arguments to Type.withName");
1161     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1162
1163     CYPool pool;
1164     const char *name(CYPoolCString(pool, context, arguments[0]));
1165
1166     sig::Type type(*internal->type_);
1167     type.name = name;
1168     return CYMakeType(context, &type);
1169 } CYCatch(NULL) }
1170
1171 static JSValueRef Type_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1172     if (count != 1)
1173         throw CYJSError(context, "incorrect number of arguments to type cast function");
1174     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
1175
1176     if (internal->type_->primitive == sig::function_P)
1177         return CYMakeFunctor(context, arguments[0], internal->type_->data.signature);
1178
1179     sig::Type *type(internal->type_);
1180     ffi_type *ffi(internal->GetFFI());
1181     // XXX: alignment?
1182     uint8_t value[ffi->size];
1183     CYPool pool;
1184     CYPoolFFI(&pool, context, type, ffi, value, arguments[0]);
1185     return CYFromFFI(context, type, ffi, value);
1186 } CYCatch(NULL) }
1187
1188 static JSObjectRef Type_callAsConstructor(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1189     if (count != 0)
1190         throw CYJSError(context, "incorrect number of arguments to Type allocator");
1191     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
1192
1193     sig::Type *type(internal->type_);
1194     size_t length;
1195
1196     if (type->primitive != sig::array_P)
1197         length = _not(size_t);
1198     else {
1199         length = type->data.data.size;
1200         type = type->data.data.type;
1201     }
1202
1203     void *value(calloc(1, internal->GetFFI()->size));
1204     return CYMakePointer(context, value, length, type, NULL, NULL);
1205 } CYCatch(NULL) }
1206
1207 static JSObjectRef Functor_new(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1208     if (count != 2)
1209         throw CYJSError(context, "incorrect number of arguments to Functor constructor");
1210     CYPool pool;
1211     const char *encoding(CYPoolCString(pool, context, arguments[1]));
1212     sig::Signature signature;
1213     sig::Parse(pool, &signature, encoding, &Structor_);
1214     return CYMakeFunctor(context, arguments[0], signature);
1215 } CYCatch(NULL) }
1216
1217 static JSValueRef CYValue_callAsFunction_valueOf(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1218     CYValue *internal(reinterpret_cast<CYValue *>(JSObjectGetPrivate(_this)));
1219     return CYCastJSValue(context, reinterpret_cast<uintptr_t>(internal->value_));
1220 } CYCatch(NULL) }
1221
1222 static JSValueRef CYValue_callAsFunction_toJSON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
1223     return CYValue_callAsFunction_valueOf(context, object, _this, count, arguments, exception);
1224 }
1225
1226 static JSValueRef CYValue_callAsFunction_toCYON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1227     CYValue *internal(reinterpret_cast<CYValue *>(JSObjectGetPrivate(_this)));
1228     char string[32];
1229     sprintf(string, "%p", internal->value_);
1230     return CYCastJSValue(context, string);
1231 } CYCatch(NULL) }
1232
1233 static JSValueRef Pointer_callAsFunction_toCYON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1234     Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(_this)));
1235     if (internal->length_ != _not(size_t)) {
1236         JSObjectRef Array(CYGetCachedObject(context, CYJSString("Array_prototype")));
1237         JSObjectRef toCYON(CYCastJSObject(context, CYGetProperty(context, Array, toCYON_s)));
1238         return CYCallAsFunction(context, toCYON, _this, count, arguments);
1239     } else {
1240         char string[32];
1241         sprintf(string, "%p", internal->value_);
1242         return CYCastJSValue(context, string);
1243     }
1244 } CYCatch(NULL) }
1245
1246 static JSValueRef Functor_getProperty_type(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1247     cy::Functor *internal(reinterpret_cast<cy::Functor *>(JSObjectGetPrivate(object)));
1248     return CYMakeType(context, &internal->signature_);
1249 } CYCatch(NULL) }
1250
1251 static JSValueRef Type_getProperty_alignment(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1252     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
1253     return CYCastJSValue(context, internal->GetFFI()->alignment);
1254 } CYCatch(NULL) }
1255
1256 static JSValueRef Type_getProperty_name(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1257     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
1258     return CYCastJSValue(context, internal->type_->name);
1259 } CYCatch(NULL) }
1260
1261 static JSValueRef Type_getProperty_size(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1262     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
1263     return CYCastJSValue(context, internal->GetFFI()->size);
1264 } CYCatch(NULL) }
1265
1266 static JSValueRef Type_callAsFunction_toString(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1267     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1268     CYPool pool;
1269     const char *type(sig::Unparse(pool, internal->type_));
1270     return CYCastJSValue(context, CYJSString(type));
1271 } CYCatch(NULL) }
1272
1273 static JSValueRef Type_callAsFunction_toCYON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1274     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1275     CYLocalPool pool;
1276     std::ostringstream out;
1277     CYOptions options;
1278     CYOutput output(out, options);
1279     (new(pool) CYEncodedType(Decode(pool, internal->type_)))->Output(output, CYNoFlags);
1280     return CYCastJSValue(context, CYJSString(out.str().c_str()));
1281 } CYCatch(NULL) }
1282
1283 static JSValueRef Type_callAsFunction_toJSON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
1284     return Type_callAsFunction_toString(context, object, _this, count, arguments, exception);
1285 }
1286
1287 static JSStaticFunction Pointer_staticFunctions[4] = {
1288     {"toCYON", &Pointer_callAsFunction_toCYON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1289     {"toJSON", &CYValue_callAsFunction_toJSON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1290     {"valueOf", &CYValue_callAsFunction_valueOf, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1291     {NULL, NULL, 0}
1292 };
1293
1294 static JSStaticFunction Struct_staticFunctions[2] = {
1295     {"$cya", &Struct_callAsFunction_$cya, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1296     {NULL, NULL, 0}
1297 };
1298
1299 static JSStaticFunction Functor_staticFunctions[4] = {
1300     {"toCYON", &CYValue_callAsFunction_toCYON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1301     {"toJSON", &CYValue_callAsFunction_toJSON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1302     {"valueOf", &CYValue_callAsFunction_valueOf, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1303     {NULL, NULL, 0}
1304 };
1305
1306 namespace cy {
1307     JSStaticFunction const * const Functor::StaticFunctions = Functor_staticFunctions;
1308 }
1309
1310 static JSStaticValue Functor_staticValues[2] = {
1311     {"type", &Functor_getProperty_type, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1312     {NULL, NULL, NULL, 0}
1313 };
1314
1315 static JSStaticValue Type_staticValues[4] = {
1316     {"alignment", &Type_getProperty_alignment, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1317     {"name", &Type_getProperty_name, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1318     {"size", &Type_getProperty_size, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1319     {NULL, NULL, NULL, 0}
1320 };
1321
1322 static JSStaticFunction Type_staticFunctions[9] = {
1323     {"arrayOf", &Type_callAsFunction_arrayOf, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1324     {"constant", &Type_callAsFunction_constant, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1325     {"functionWith", &Type_callAsFunction_functionWith, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1326     {"pointerTo", &Type_callAsFunction_pointerTo, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1327     {"withName", &Type_callAsFunction_withName, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1328     {"toCYON", &Type_callAsFunction_toCYON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1329     {"toJSON", &Type_callAsFunction_toJSON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1330     {"toString", &Type_callAsFunction_toString, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1331     {NULL, NULL, 0}
1332 };
1333
1334 static JSObjectRef (*JSObjectMakeArray$)(JSContextRef, size_t, const JSValueRef[], JSValueRef *);
1335
1336 void CYSetArgs(int argc, const char *argv[]) {
1337     JSContextRef context(CYGetJSContext());
1338     JSValueRef args[argc];
1339     for (int i(0); i != argc; ++i)
1340         args[i] = CYCastJSValue(context, argv[i]);
1341
1342     JSObjectRef array;
1343     if (JSObjectMakeArray$ != NULL)
1344         array = _jsccall(*JSObjectMakeArray$, context, argc, args);
1345     else {
1346         JSObjectRef Array(CYGetCachedObject(context, CYJSString("Array")));
1347         JSValueRef value(CYCallAsFunction(context, Array, NULL, argc, args));
1348         array = CYCastJSObject(context, value);
1349     }
1350
1351     JSObjectRef System(CYGetCachedObject(context, CYJSString("System")));
1352     CYSetProperty(context, System, CYJSString("args"), array);
1353 }
1354
1355 JSObjectRef CYGetGlobalObject(JSContextRef context) {
1356     return JSContextGetGlobalObject(context);
1357 }
1358
1359 const char *CYExecute(JSContextRef context, CYPool &pool, CYUTF8String code) {
1360     JSValueRef exception(NULL);
1361
1362     void *handle;
1363     if (hooks_ != NULL && hooks_->ExecuteStart != NULL)
1364         handle = (*hooks_->ExecuteStart)(context);
1365     else
1366         handle = NULL;
1367
1368     try {
1369
1370     JSValueRef result;
1371     try {
1372         result = JSEvaluateScript(context, CYJSString(code), NULL, NULL, 0, &exception);
1373     } catch (const char *error) {
1374         return error;
1375     }
1376
1377     if (exception != NULL) error:
1378         return CYPoolCString(pool, context, CYJSString(context, exception));
1379
1380     if (JSValueIsUndefined(context, result))
1381         return NULL;
1382
1383     const char *json;
1384     try {
1385         json = CYPoolCCYON(pool, context, result, &exception);
1386     } catch (const char *error) {
1387         return error;
1388     }
1389
1390     if (exception != NULL)
1391         goto error;
1392
1393     CYSetProperty(context, CYGetGlobalObject(context), Result_, result);
1394
1395     return json;
1396
1397     } catch (...) {
1398         if (hooks_ != NULL && hooks_->ExecuteEnd != NULL)
1399             (*hooks_->ExecuteEnd)(context, handle);
1400         throw;
1401     }
1402 }
1403
1404 extern "C" void CydgetSetupContext(JSGlobalContextRef context) {
1405     CYSetupContext(context);
1406 }
1407
1408 static bool initialized_ = false;
1409
1410 void CYInitializeDynamic() {
1411     if (!initialized_)
1412         initialized_ = true;
1413     else return;
1414
1415     JSObjectMakeArray$ = reinterpret_cast<JSObjectRef (*)(JSContextRef, size_t, const JSValueRef[], JSValueRef *)>(dlsym(RTLD_DEFAULT, "JSObjectMakeArray"));
1416
1417     JSClassDefinition definition;
1418
1419     definition = kJSClassDefinitionEmpty;
1420     definition.className = "All";
1421     definition.getProperty = &All_getProperty;
1422     definition.getPropertyNames = &All_getPropertyNames;
1423     All_ = JSClassCreate(&definition);
1424
1425     definition = kJSClassDefinitionEmpty;
1426     definition.className = "Context";
1427     definition.finalize = &CYFinalize;
1428     Context_ = JSClassCreate(&definition);
1429
1430     definition = kJSClassDefinitionEmpty;
1431     definition.className = "Functor";
1432     definition.staticFunctions = cy::Functor::StaticFunctions;
1433     definition.staticValues = Functor_staticValues;
1434     definition.callAsFunction = &Functor_callAsFunction;
1435     definition.finalize = &CYFinalize;
1436     Functor_ = JSClassCreate(&definition);
1437
1438     definition = kJSClassDefinitionEmpty;
1439     definition.className = "Pointer";
1440     definition.staticFunctions = Pointer_staticFunctions;
1441     definition.getProperty = &Pointer_getProperty;
1442     definition.setProperty = &Pointer_setProperty;
1443     definition.finalize = &CYFinalize;
1444     Pointer_ = JSClassCreate(&definition);
1445
1446     definition = kJSClassDefinitionEmpty;
1447     definition.className = "Struct";
1448     definition.staticFunctions = Struct_staticFunctions;
1449     definition.getProperty = &Struct_getProperty;
1450     definition.setProperty = &Struct_setProperty;
1451     definition.getPropertyNames = &Struct_getPropertyNames;
1452     definition.finalize = &CYFinalize;
1453     Struct_ = JSClassCreate(&definition);
1454
1455     definition = kJSClassDefinitionEmpty;
1456     definition.className = "Type";
1457     definition.staticValues = Type_staticValues;
1458     definition.staticFunctions = Type_staticFunctions;
1459     definition.callAsFunction = &Type_callAsFunction;
1460     definition.callAsConstructor = &Type_callAsConstructor;
1461     definition.finalize = &CYFinalize;
1462     Type_privateData::Class_ = JSClassCreate(&definition);
1463
1464     definition = kJSClassDefinitionEmpty;
1465     definition.className = "Global";
1466     //definition.getProperty = &Global_getProperty;
1467     Global_ = JSClassCreate(&definition);
1468
1469     Array_s = JSStringCreateWithUTF8CString("Array");
1470     cy_s = JSStringCreateWithUTF8CString("$cy");
1471     length_s = JSStringCreateWithUTF8CString("length");
1472     message_s = JSStringCreateWithUTF8CString("message");
1473     name_s = JSStringCreateWithUTF8CString("name");
1474     pop_s = JSStringCreateWithUTF8CString("pop");
1475     prototype_s = JSStringCreateWithUTF8CString("prototype");
1476     push_s = JSStringCreateWithUTF8CString("push");
1477     splice_s = JSStringCreateWithUTF8CString("splice");
1478     toCYON_s = JSStringCreateWithUTF8CString("toCYON");
1479     toJSON_s = JSStringCreateWithUTF8CString("toJSON");
1480     toPointer_s = JSStringCreateWithUTF8CString("toPointer");
1481     toString_s = JSStringCreateWithUTF8CString("toString");
1482
1483     Result_ = JSStringCreateWithUTF8CString("_");
1484
1485     if (hooks_ != NULL && hooks_->Initialize != NULL)
1486         (*hooks_->Initialize)();
1487 }
1488
1489 void CYThrow(JSContextRef context, JSValueRef value) {
1490     if (value != NULL)
1491         throw CYJSError(context, value);
1492 }
1493
1494 const char *CYJSError::PoolCString(CYPool &pool) const {
1495     // XXX: this used to be CYPoolCString
1496     return CYPoolCCYON(pool, context_, value_);
1497 }
1498
1499 JSValueRef CYJSError::CastJSValue(JSContextRef context) const {
1500     // XXX: what if the context is different?
1501     return value_;
1502 }
1503
1504 JSValueRef CYCastJSError(JSContextRef context, const char *message) {
1505     JSObjectRef Error(CYGetCachedObject(context, CYJSString("Error")));
1506     JSValueRef arguments[1] = {CYCastJSValue(context, message)};
1507     return _jsccall(JSObjectCallAsConstructor, context, Error, 1, arguments);
1508 }
1509
1510 JSValueRef CYPoolError::CastJSValue(JSContextRef context) const {
1511     return CYCastJSError(context, message_);
1512 }
1513
1514 CYJSError::CYJSError(JSContextRef context, const char *format, ...) {
1515     _assert(context != NULL);
1516
1517     CYPool pool;
1518
1519     va_list args;
1520     va_start(args, format);
1521     // XXX: there might be a beter way to think about this
1522     const char *message(pool.vsprintf(64, format, args));
1523     va_end(args);
1524
1525     value_ = CYCastJSError(context, message);
1526 }
1527
1528 JSGlobalContextRef CYGetJSContext(JSContextRef context) {
1529     return reinterpret_cast<Context *>(JSObjectGetPrivate(CYCastJSObject(context, CYGetProperty(context, CYGetGlobalObject(context), cy_s))))->context_;
1530 }
1531
1532 extern "C" bool CydgetMemoryParse(const uint16_t **data, size_t *size);
1533
1534 void *CYMapFile(const char *path, size_t *psize) {
1535     int fd;
1536     _syscall(fd = open(path, O_RDONLY));
1537
1538     struct stat stat;
1539     _syscall(fstat(fd, &stat));
1540     size_t size(stat.st_size);
1541
1542     *psize = size;
1543
1544     void *base;
1545     _syscall(base = mmap(NULL, size, PROT_READ, MAP_SHARED, fd, 0));
1546
1547     _syscall(close(fd));
1548     return base;
1549 }
1550
1551 static void CYRunSetups(JSContextRef context) {
1552     std::string folder("/etc/cycript/setup.d");
1553     DIR *setups(opendir(folder.c_str()));
1554     if (setups == NULL)
1555         return;
1556
1557     for (;;) {
1558         dirent setup;
1559         dirent *result;
1560         _syscall(readdir_r(setups, &setup, &result));
1561
1562         if (result == NULL)
1563             break;
1564         _assert(result == &setup);
1565
1566         const char *name(setup.d_name);
1567         size_t length(strlen(name));
1568         if (length < 4)
1569             continue;
1570
1571         if (name[0] == '.')
1572             continue;
1573         if (memcmp(name + length - 3, ".cy", 3) != 0)
1574             continue;
1575
1576         std::string script(folder + "/" + name);
1577         CYUTF8String utf8;
1578         utf8.data = reinterpret_cast<char *>(CYMapFile(script.c_str(), &utf8.size));
1579
1580         CYPool pool;
1581         CYUTF16String utf16(CYPoolUTF16String(pool, utf8));
1582         munmap(const_cast<char *>(utf8.data), utf8.size);
1583
1584         if (CydgetMemoryParse(&utf16.data, &utf16.size))
1585             CYExecute(context, pool, CYPoolUTF8String(pool, utf16));
1586         free(const_cast<uint16_t *>(utf16.data));
1587     }
1588
1589     _syscall(closedir(setups));
1590 }
1591
1592 static JSValueRef require(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1593     _assert(count == 1);
1594     CYPool pool;
1595
1596     Dl_info addr;
1597     _assert(dladdr(reinterpret_cast<void *>(&require), &addr) != 0);
1598     char *lib(pool.strdup(addr.dli_fname));
1599
1600     char *slash(strrchr(lib, '/'));
1601     _assert(slash != NULL);
1602     *slash = '\0';
1603
1604     CYJSString property("exports");
1605     JSObjectRef module;
1606
1607     const char *path(pool.strcat(lib, "/cycript/", CYPoolCString(pool, context, arguments[0]), ".cy", NULL));
1608     CYJSString key(path);
1609     JSObjectRef modules(CYGetCachedObject(context, CYJSString("modules")));
1610     JSValueRef cache(CYGetProperty(context, modules, key));
1611
1612     if (!JSValueIsUndefined(context, cache))
1613         module = CYCastJSObject(context, cache);
1614     else {
1615         CYUTF8String code;
1616         code.data = reinterpret_cast<char *>(CYMapFile(path, &code.size));
1617
1618         std::stringstream wrap;
1619         wrap << "(function (exports, require, module) { " << code << "\n});";
1620         code = CYPoolCode(pool, wrap.str().c_str());
1621
1622         JSValueRef value(_jsccall(JSEvaluateScript, context, CYJSString(code), NULL, NULL, 0));
1623         JSObjectRef function(CYCastJSObject(context, value));
1624
1625         module = JSObjectMake(context, NULL, NULL);
1626         JSObjectRef exports(JSObjectMake(context, NULL, NULL));
1627         CYSetProperty(context, module, property, exports);
1628
1629         JSValueRef arguments[3] = { exports, JSObjectMakeFunctionWithCallback(context, CYJSString("require"), &require), module };
1630         CYCallAsFunction(context, function, NULL, 3, arguments);
1631         CYSetProperty(context, modules, key, module);
1632     }
1633
1634     return CYGetProperty(context, module, property);
1635 } CYCatch(NULL) }
1636
1637 extern "C" void CYSetupContext(JSGlobalContextRef context) {
1638     CYInitializeDynamic();
1639
1640     JSObjectRef global(CYGetGlobalObject(context));
1641
1642     JSObjectRef cy(JSObjectMake(context, Context_, new Context(context)));
1643     CYSetProperty(context, global, cy_s, cy, kJSPropertyAttributeDontEnum);
1644
1645 /* Cache Globals {{{ */
1646     JSObjectRef Array(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Array"))));
1647     CYSetProperty(context, cy, CYJSString("Array"), Array);
1648
1649     JSObjectRef Array_prototype(CYCastJSObject(context, CYGetProperty(context, Array, prototype_s)));
1650     CYSetProperty(context, cy, CYJSString("Array_prototype"), Array_prototype);
1651
1652     JSObjectRef Error(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Error"))));
1653     CYSetProperty(context, cy, CYJSString("Error"), Error);
1654
1655     JSObjectRef Function(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Function"))));
1656     CYSetProperty(context, cy, CYJSString("Function"), Function);
1657
1658     JSObjectRef Function_prototype(CYCastJSObject(context, CYGetProperty(context, Function, prototype_s)));
1659     CYSetProperty(context, cy, CYJSString("Function_prototype"), Function_prototype);
1660
1661     JSObjectRef Object(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Object"))));
1662     CYSetProperty(context, cy, CYJSString("Object"), Object);
1663
1664     JSObjectRef Object_prototype(CYCastJSObject(context, CYGetProperty(context, Object, prototype_s)));
1665     CYSetProperty(context, cy, CYJSString("Object_prototype"), Object_prototype);
1666
1667     JSObjectRef String(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("String"))));
1668     CYSetProperty(context, cy, CYJSString("String"), String);
1669
1670     JSObjectRef String_prototype(CYCastJSObject(context, CYGetProperty(context, String, prototype_s)));
1671     CYSetProperty(context, cy, CYJSString("String_prototype"), String_prototype);
1672 /* }}} */
1673
1674     CYSetProperty(context, Array_prototype, toCYON_s, &Array_callAsFunction_toCYON, kJSPropertyAttributeDontEnum);
1675     CYSetProperty(context, String_prototype, toCYON_s, &String_callAsFunction_toCYON, kJSPropertyAttributeDontEnum);
1676
1677     JSObjectRef cycript(JSObjectMake(context, NULL, NULL));
1678     CYSetProperty(context, global, CYJSString("Cycript"), cycript);
1679     CYSetProperty(context, cycript, CYJSString("gc"), &Cycript_gc_callAsFunction);
1680
1681     JSObjectRef Functor(JSObjectMakeConstructor(context, Functor_, &Functor_new));
1682     JSObjectSetPrototype(context, CYCastJSObject(context, CYGetProperty(context, Functor, prototype_s)), Function_prototype);
1683     CYSetProperty(context, cycript, CYJSString("Functor"), Functor);
1684
1685     CYSetProperty(context, cycript, CYJSString("Pointer"), JSObjectMakeConstructor(context, Pointer_, &Pointer_new));
1686     CYSetProperty(context, cycript, CYJSString("Type"), JSObjectMakeConstructor(context, Type_privateData::Class_, &Type_new));
1687
1688     JSObjectRef modules(JSObjectMake(context, NULL, NULL));
1689     CYSetProperty(context, cy, CYJSString("modules"), modules);
1690
1691     JSObjectRef all(JSObjectMake(context, All_, NULL));
1692     CYSetProperty(context, cycript, CYJSString("all"), all);
1693
1694     JSObjectRef alls(_jsccall(JSObjectCallAsConstructor, context, Array, 0, NULL));
1695     CYSetProperty(context, cycript, CYJSString("alls"), alls);
1696
1697     if (true) {
1698         JSObjectRef last(NULL), curr(global);
1699
1700         goto next; for (JSValueRef next;;) {
1701             if (JSValueIsNull(context, next))
1702                 break;
1703             last = curr;
1704             curr = CYCastJSObject(context, next);
1705           next:
1706             next = JSObjectGetPrototype(context, curr);
1707         }
1708
1709         JSObjectSetPrototype(context, last, all);
1710     }
1711
1712     CYSetProperty(context, global, CYJSString("$cyq"), &$cyq, kJSPropertyAttributeDontEnum);
1713
1714     JSObjectRef System(JSObjectMake(context, NULL, NULL));
1715     CYSetProperty(context, cy, CYJSString("System"), System);
1716
1717     CYSetProperty(context, all, CYJSString("require"), &require, kJSPropertyAttributeDontEnum);
1718
1719     CYSetProperty(context, global, CYJSString("system"), System);
1720     CYSetProperty(context, System, CYJSString("args"), CYJSNull(context));
1721     //CYSetProperty(context, System, CYJSString("global"), global);
1722     CYSetProperty(context, System, CYJSString("print"), &System_print);
1723
1724     if (CYBridgeEntry *entry = CYBridgeHash("1dlerror", 8))
1725         entry->cache_ = new cy::Functor(entry->value_, reinterpret_cast<void (*)()>(&dlerror));
1726
1727     if (hooks_ != NULL && hooks_->SetupContext != NULL)
1728         (*hooks_->SetupContext)(context);
1729
1730     CYArrayPush(context, alls, cycript);
1731
1732     CYRunSetups(context);
1733 }
1734
1735 JSGlobalContextRef CYGetJSContext() {
1736     CYInitializeDynamic();
1737
1738     static JSGlobalContextRef context_;
1739
1740     if (context_ == NULL) {
1741         context_ = JSGlobalContextCreate(Global_);
1742         CYSetupContext(context_);
1743     }
1744
1745     return context_;
1746 }