Execute.cpp

   1 /* Cycript - Optimizing JavaScript Compiler/Runtime
   2  * Copyright (C) 2009-2015  Jay Freeman (saurik)
   3 */
   4
   5 /* GNU Affero General Public License, Version 3 {{{ */
   6 /*
   7  * This program is free software: you can redistribute it and/or modify
   8  * it under the terms of the GNU Affero General Public License as published by
   9  * the Free Software Foundation, either version 3 of the License, or
  10  * (at your option) any later version.
  11
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU Affero General Public License for more details.
  16
  17  * You should have received a copy of the GNU Affero General Public License
  18  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19 **/
  20 /* }}} */
  21
  22 #include "cycript.hpp"
  23
  24 #include <iostream>
  25 #include <set>
  26 #include <map>
  27 #include <iomanip>
  28 #include <sstream>
  29 #include <cmath>
  30
  31 #include <dlfcn.h>
  32 #include <dirent.h>
  33 #include <fcntl.h>
  34 #include <unistd.h>
  35
  36 #include <sys/mman.h>
  37 #include <sys/stat.h>
  38
  39 #include "sig/parse.hpp"
  40 #include "sig/ffi_type.hpp"
  41
  42 #include "Code.hpp"
  43 #include "Decode.hpp"
  44 #include "Error.hpp"
  45 #include "Execute.hpp"
  46 #include "Internal.hpp"
  47 #include "JavaScript.hpp"
  48 #include "Pooling.hpp"
  49 #include "String.hpp"
  50
  51 static std::vector<CYHook *> &GetHooks() {
  52     static std::vector<CYHook *> hooks;
  53     return hooks;
  54 }
  55
  56 CYRegisterHook::CYRegisterHook(CYHook *hook) {
  57     GetHooks().push_back(hook);
  58 }
  59
  60 /* JavaScript Properties {{{ */
  61 bool CYHasProperty(JSContextRef context, JSObjectRef object, JSStringRef name) {
  62     return JSObjectHasProperty(context, object, name);
  63 }
  64
  65 JSValueRef CYGetProperty(JSContextRef context, JSObjectRef object, size_t index) {
  66     return _jsccall(JSObjectGetPropertyAtIndex, context, object, index);
  67 }
  68
  69 JSValueRef CYGetProperty(JSContextRef context, JSObjectRef object, JSStringRef name) {
  70     return _jsccall(JSObjectGetProperty, context, object, name);
  71 }
  72
  73 void CYSetProperty(JSContextRef context, JSObjectRef object, size_t index, JSValueRef value) {
  74     _jsccall(JSObjectSetPropertyAtIndex, context, object, index, value);
  75 }
  76
  77 void CYSetProperty(JSContextRef context, JSObjectRef object, JSStringRef name, JSValueRef value, JSPropertyAttributes attributes) {
  78     _jsccall(JSObjectSetProperty, context, object, name, value, attributes);
  79 }
  80
  81 void CYSetProperty(JSContextRef context, JSObjectRef object, JSStringRef name, JSValueRef (*callback)(JSContextRef, JSObjectRef, JSObjectRef, size_t, const JSValueRef[], JSValueRef *), JSPropertyAttributes attributes) {
  82     CYSetProperty(context, object, name, JSObjectMakeFunctionWithCallback(context, name, callback), attributes);
  83 }
  84
  85 void CYSetPrototype(JSContextRef context, JSObjectRef object, JSValueRef value) {
  86     JSObjectSetPrototype(context, object, value);
  87     _assert(CYIsStrictEqual(context, JSObjectGetPrototype(context, object), value));
  88 }
  89 /* }}} */
  90 /* JavaScript Strings {{{ */
  91 JSStringRef CYCopyJSString(const char *value) {
  92     return value == NULL ? NULL : JSStringCreateWithUTF8CString(value);
  93 }
  94
  95 JSStringRef CYCopyJSString(JSStringRef value) {
  96     return value == NULL ? NULL : JSStringRetain(value);
  97 }
  98
  99 JSStringRef CYCopyJSString(CYUTF8String value) {
 100     if (memchr(value.data, '\0', value.size) != NULL) {
 101         CYPool pool;
 102         return CYCopyJSString(pool.memdup(value.data, value.size));
 103     } else if (value.data[value.size] != '\0') {
 104         CYPool pool;
 105         return CYCopyJSString(CYPoolUTF16String(pool, value));
 106     } else {
 107         return CYCopyJSString(value.data);
 108     }
 109 }
 110
 111 JSStringRef CYCopyJSString(CYUTF16String value) {
 112     return JSStringCreateWithCharacters(value.data, value.size);
 113 }
 114
 115 JSStringRef CYCopyJSString(JSContextRef context, JSValueRef value) {
 116     if (JSValueIsNull(context, value))
 117         return NULL;
 118     return _jsccall(JSValueToStringCopy, context, value);
 119 }
 120
 121 static CYUTF16String CYCastUTF16String(JSStringRef value) {
 122     return CYUTF16String(JSStringGetCharactersPtr(value), JSStringGetLength(value));
 123 }
 124
 125 CYUTF8String CYPoolUTF8String(CYPool &pool, JSContextRef context, JSStringRef value) {
 126     return CYPoolUTF8String(pool, CYCastUTF16String(value));
 127 }
 128
 129 const char *CYPoolCString(CYPool &pool, JSContextRef context, JSStringRef value) {
 130     CYUTF8String utf8(CYPoolUTF8String(pool, context, value));
 131     _assert(memchr(utf8.data, '\0', utf8.size) == NULL);
 132     return utf8.data;
 133 }
 134
 135 const char *CYPoolCString(CYPool &pool, JSContextRef context, JSValueRef value) {
 136     return JSValueIsNull(context, value) ? NULL : CYPoolCString(pool, context, CYJSString(context, value));
 137 }
 138 /* }}} */
 139 /* Index Offsets {{{ */
 140 size_t CYGetIndex(CYPool &pool, JSContextRef context, JSStringRef value) {
 141     return CYGetIndex(CYPoolUTF8String(pool, context, value));
 142 }
 143 /* }}} */
 144
 145 static JSClassRef All_;
 146 static JSClassRef Context_;
 147 static JSClassRef CString_;
 148 JSClassRef Functor_;
 149 static JSClassRef Global_;
 150 static JSClassRef Pointer_;
 151 static JSClassRef Struct_;
 152
 153 JSStringRef Array_s;
 154 JSStringRef cy_s;
 155 JSStringRef cyi_s;
 156 JSStringRef length_s;
 157 JSStringRef message_s;
 158 JSStringRef name_s;
 159 JSStringRef pop_s;
 160 JSStringRef prototype_s;
 161 JSStringRef push_s;
 162 JSStringRef splice_s;
 163 JSStringRef toCYON_s;
 164 JSStringRef toJSON_s;
 165 JSStringRef toPointer_s;
 166 JSStringRef toString_s;
 167 JSStringRef weak_s;
 168
 169 static JSStringRef Result_;
 170
 171 void CYFinalize(JSObjectRef object) {
 172     CYData *internal(reinterpret_cast<CYData *>(JSObjectGetPrivate(object)));
 173     _assert(internal->count_ != _not(unsigned));
 174     if (--internal->count_ == 0)
 175         delete internal;
 176 }
 177
 178 void Structor_(CYPool &pool, sig::Type *&type) {
 179     if (
 180         type->primitive == sig::pointer_P &&
 181         type->data.data.type->primitive == sig::struct_P &&
 182         type->data.data.type->name != NULL &&
 183         strcmp(type->data.data.type->name, "_objc_class") == 0
 184     ) {
 185         type->primitive = sig::typename_P;
 186         type->data.data.type = NULL;
 187         return;
 188     }
 189
 190     if (type->primitive != sig::struct_P || type->name == NULL)
 191         return;
 192
 193     size_t length(strlen(type->name));
 194     char keyed[length + 2];
 195     memcpy(keyed + 1, type->name, length + 1);
 196
 197     static const char *modes = "34";
 198     for (size_t i(0); i != 2; ++i) {
 199         char mode(modes[i]);
 200         keyed[0] = mode;
 201
 202         if (CYBridgeEntry *entry = CYBridgeHash(keyed, length + 1))
 203             switch (mode) {
 204                 case '3':
 205                     sig::Parse(pool, &type->data.signature, entry->value_, &Structor_);
 206                 break;
 207
 208                 case '4': {
 209                     sig::Signature signature;
 210                     sig::Parse(pool, &signature, entry->value_, &Structor_);
 211                     type = signature.elements[0].type;
 212                 } break;
 213             }
 214     }
 215 }
 216
 217 JSClassRef Type_privateData::Class_;
 218
 219 struct Context :
 220     CYData
 221 {
 222     JSGlobalContextRef context_;
 223
 224     Context(JSGlobalContextRef context) :
 225         context_(context)
 226     {
 227     }
 228 };
 229
 230 struct CString :
 231     CYOwned
 232 {
 233     CString(char *value, JSContextRef context, JSObjectRef owner) :
 234         CYOwned(value, context, owner)
 235     {
 236     }
 237 };
 238
 239 struct Pointer :
 240     CYOwned
 241 {
 242     Type_privateData *type_;
 243     size_t length_;
 244
 245     Pointer(void *value, JSContextRef context, JSObjectRef owner, size_t length, sig::Type *type) :
 246         CYOwned(value, context, owner),
 247         type_(new(*pool_) Type_privateData(type)),
 248         length_(length)
 249     {
 250     }
 251 };
 252
 253 struct Struct_privateData :
 254     CYOwned
 255 {
 256     Type_privateData *type_;
 257
 258     Struct_privateData(JSContextRef context, JSObjectRef owner) :
 259         CYOwned(NULL, context, owner)
 260     {
 261     }
 262 };
 263
 264 JSObjectRef CYMakeStruct(JSContextRef context, void *data, sig::Type *type, ffi_type *ffi, JSObjectRef owner) {
 265     Struct_privateData *internal(new Struct_privateData(context, owner));
 266     CYPool &pool(*internal->pool_);
 267     Type_privateData *typical(new(pool) Type_privateData(type, ffi));
 268     internal->type_ = typical;
 269
 270     if (owner != NULL)
 271         internal->value_ = data;
 272     else {
 273         size_t size(typical->GetFFI()->size);
 274         void *copy(internal->pool_->malloc<void>(size));
 275         memcpy(copy, data, size);
 276         internal->value_ = copy;
 277     }
 278
 279     return JSObjectMake(context, Struct_, internal);
 280 }
 281
 282 static void *CYCastSymbol(const char *name) {
 283     for (CYHook *hook : GetHooks())
 284         if (hook->CastSymbol != NULL)
 285             if (void *value = (*hook->CastSymbol)(name))
 286                 return value;
 287     return dlsym(RTLD_DEFAULT, name);
 288 }
 289
 290 JSValueRef CYCastJSValue(JSContextRef context, bool value) {
 291     return JSValueMakeBoolean(context, value);
 292 }
 293
 294 JSValueRef CYCastJSValue(JSContextRef context, double value) {
 295     return JSValueMakeNumber(context, value);
 296 }
 297
 298 #define CYCastJSValue_(Type_) \
 299     JSValueRef CYCastJSValue(JSContextRef context, Type_ value) { \
 300         return JSValueMakeNumber(context, static_cast<double>(value)); \
 301     }
 302
 303 CYCastJSValue_(int)
 304 CYCastJSValue_(unsigned int)
 305 CYCastJSValue_(long int)
 306 CYCastJSValue_(long unsigned int)
 307 CYCastJSValue_(long long int)
 308 CYCastJSValue_(long long unsigned int)
 309
 310 JSValueRef CYJSUndefined(JSContextRef context) {
 311     return JSValueMakeUndefined(context);
 312 }
 313
 314 double CYCastDouble(JSContextRef context, JSValueRef value) {
 315     return _jsccall(JSValueToNumber, context, value);
 316 }
 317
 318 bool CYCastBool(JSContextRef context, JSValueRef value) {
 319     return JSValueToBoolean(context, value);
 320 }
 321
 322 JSValueRef CYJSNull(JSContextRef context) {
 323     return JSValueMakeNull(context);
 324 }
 325
 326 JSValueRef CYCastJSValue(JSContextRef context, JSStringRef value) {
 327     return value == NULL ? CYJSNull(context) : JSValueMakeString(context, value);
 328 }
 329
 330 JSValueRef CYCastJSValue(JSContextRef context, const char *value) {
 331     return CYCastJSValue(context, CYJSString(value));
 332 }
 333
 334 JSObjectRef CYCastJSObject(JSContextRef context, JSValueRef value) {
 335     return _jsccall(JSValueToObject, context, value);
 336 }
 337
 338 JSValueRef CYCallAsFunction(JSContextRef context, JSObjectRef function, JSObjectRef _this, size_t count, const JSValueRef arguments[]) {
 339     return _jsccall(JSObjectCallAsFunction, context, function, _this, count, arguments);
 340 }
 341
 342 bool CYIsCallable(JSContextRef context, JSValueRef value) {
 343     return value != NULL && JSValueIsObject(context, value) && JSObjectIsFunction(context, (JSObjectRef) value);
 344 }
 345
 346 bool CYIsEqual(JSContextRef context, JSValueRef lhs, JSValueRef rhs) {
 347     return _jsccall(JSValueIsEqual, context, lhs, rhs);
 348 }
 349
 350 bool CYIsStrictEqual(JSContextRef context, JSValueRef lhs, JSValueRef rhs) {
 351     return JSValueIsStrictEqual(context, lhs, rhs);
 352 }
 353
 354 size_t CYArrayLength(JSContextRef context, JSObjectRef array) {
 355     return CYCastDouble(context, CYGetProperty(context, array, length_s));
 356 }
 357
 358 JSValueRef CYArrayGet(JSContextRef context, JSObjectRef array, size_t index) {
 359     return _jsccall(JSObjectGetPropertyAtIndex, context, array, index);
 360 }
 361
 362 void CYArrayPush(JSContextRef context, JSObjectRef array, JSValueRef value) {
 363     JSValueRef arguments[1];
 364     arguments[0] = value;
 365     JSObjectRef Array(CYGetCachedObject(context, CYJSString("Array_prototype")));
 366     _jsccall(JSObjectCallAsFunction, context, CYCastJSObject(context, CYGetProperty(context, Array, push_s)), array, 1, arguments);
 367 }
 368
 369 static JSValueRef System_print(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
 370     FILE *file(stdout);
 371
 372     if (count == 0)
 373         fputc('\n', file);
 374     else {
 375         CYPool pool;
 376         CYUTF8String string(CYPoolUTF8String(pool, context, CYJSString(context, arguments[0])));
 377         fwrite(string.data, string.size, 1, file);
 378     }
 379
 380     fflush(file);
 381     return CYJSUndefined(context);
 382 } CYCatch(NULL) }
 383
 384 static void (*JSSynchronousGarbageCollectForDebugging$)(JSContextRef);
 385
 386 _visible void CYGarbageCollect(JSContextRef context) {
 387     (JSSynchronousGarbageCollectForDebugging$ ?: &JSGarbageCollect)(context);
 388 }
 389
 390 static JSValueRef Cycript_compile_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
 391     CYPool pool;
 392     CYUTF8String before(CYPoolUTF8String(pool, context, CYJSString(context, arguments[0])));
 393     std::stringbuf value(std::string(before.data, before.size));
 394     CYUTF8String after(CYPoolCode(pool, value));
 395     return CYCastJSValue(context, CYJSString(after));
 396 } CYCatch_(NULL, "SyntaxError") }
 397
 398 static JSValueRef Cycript_gc_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
 399     CYGarbageCollect(context);
 400     return CYJSUndefined(context);
 401 } CYCatch(NULL) }
 402
 403 const char *CYPoolCCYON(CYPool &pool, JSContextRef context, JSValueRef value, std::set<void *> &objects, JSValueRef *exception) { CYTry {
 404     switch (JSType type = JSValueGetType(context, value)) {
 405         case kJSTypeUndefined:
 406             return "undefined";
 407         case kJSTypeNull:
 408             return "null";
 409         case kJSTypeBoolean:
 410             return CYCastBool(context, value) ? "true" : "false";
 411
 412         case kJSTypeNumber: {
 413             std::ostringstream str;
 414             CYNumerify(str, CYCastDouble(context, value));
 415             std::string value(str.str());
 416             return pool.strmemdup(value.c_str(), value.size());
 417         } break;
 418
 419         case kJSTypeString: {
 420             std::ostringstream str;
 421             CYUTF8String string(CYPoolUTF8String(pool, context, CYJSString(context, value)));
 422             CYStringify(str, string.data, string.size);
 423             std::string value(str.str());
 424             return pool.strmemdup(value.c_str(), value.size());
 425         } break;
 426
 427         case kJSTypeObject:
 428             return CYPoolCCYON(pool, context, (JSObjectRef) value, objects);
 429         default:
 430             throw CYJSError(context, "JSValueGetType() == 0x%x", type);
 431     }
 432 } CYCatch(NULL) }
 433
 434 const char *CYPoolCCYON(CYPool &pool, JSContextRef context, JSValueRef value, std::set<void *> &objects) {
 435     return _jsccall(CYPoolCCYON, pool, context, value, objects);
 436 }
 437
 438 const char *CYPoolCCYON(CYPool &pool, JSContextRef context, JSValueRef value, std::set<void *> *objects) {
 439     if (objects != NULL)
 440         return CYPoolCCYON(pool, context, value, *objects);
 441     else {
 442         std::set<void *> objects;
 443         return CYPoolCCYON(pool, context, value, objects);
 444     }
 445 }
 446
 447 const char *CYPoolCCYON(CYPool &pool, JSContextRef context, JSObjectRef object, std::set<void *> &objects) {
 448     JSValueRef toCYON(CYGetProperty(context, object, toCYON_s));
 449     if (CYIsCallable(context, toCYON)) {
 450         // XXX: this needs to be abstracted behind some kind of function
 451         JSValueRef arguments[1] = {CYCastJSValue(context, reinterpret_cast<uintptr_t>(&objects))};
 452         JSValueRef value(CYCallAsFunction(context, (JSObjectRef) toCYON, object, 1, arguments));
 453         _assert(value != NULL);
 454         return CYPoolCString(pool, context, value);
 455     }
 456
 457     JSValueRef toJSON(CYGetProperty(context, object, toJSON_s));
 458     if (CYIsCallable(context, toJSON)) {
 459         JSValueRef arguments[1] = {CYCastJSValue(context, CYJSString(""))};
 460         return _jsccall(CYPoolCCYON, pool, context, CYCallAsFunction(context, (JSObjectRef) toJSON, object, 1, arguments), objects);
 461     }
 462
 463     if (JSObjectIsFunction(context, object)) {
 464         JSValueRef toString(CYGetProperty(context, object, toString_s));
 465         if (CYIsCallable(context, toString)) {
 466             JSValueRef arguments[1] = {CYCastJSValue(context, CYJSString(""))};
 467             JSValueRef value(CYCallAsFunction(context, (JSObjectRef) toString, object, 1, arguments));
 468             _assert(value != NULL);
 469             return CYPoolCString(pool, context, value);
 470         }
 471     }
 472
 473     _assert(objects.insert(object).second);
 474
 475     std::ostringstream str;
 476
 477     str << '{';
 478
 479     // XXX: this is, sadly, going to leak
 480     JSPropertyNameArrayRef names(JSObjectCopyPropertyNames(context, object));
 481
 482     bool comma(false);
 483
 484     for (size_t index(0), count(JSPropertyNameArrayGetCount(names)); index != count; ++index) {
 485         if (comma)
 486             str << ',';
 487         else
 488             comma = true;
 489
 490         JSStringRef name(JSPropertyNameArrayGetNameAtIndex(names, index));
 491         CYUTF8String string(CYPoolUTF8String(pool, context, name));
 492
 493         if (CYIsKey(string))
 494             str << string.data;
 495         else
 496             CYStringify(str, string.data, string.size);
 497
 498         str << ':';
 499
 500         try {
 501             JSValueRef value(CYGetProperty(context, object, name));
 502             str << CYPoolCCYON(pool, context, value, objects);
 503         } catch (const CYException &error) {
 504             str << "@error";
 505         }
 506     }
 507
 508     JSPropertyNameArrayRelease(names);
 509
 510     str << '}';
 511
 512     std::string string(str.str());
 513     return pool.strmemdup(string.c_str(), string.size());
 514 }
 515
 516 std::set<void *> *CYCastObjects(JSContextRef context, JSObjectRef _this, size_t count, const JSValueRef arguments[]) {
 517     if (count == 0)
 518         return NULL;
 519     return CYCastPointer<std::set<void *> *>(context, arguments[0]);
 520 }
 521
 522 static JSValueRef Array_callAsFunction_toCYON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
 523     std::set<void *> *objects(CYCastObjects(context, _this, count, arguments));
 524     // XXX: this is horribly inefficient
 525     std::set<void *> backup;
 526     if (objects == NULL)
 527         objects = &backup;
 528
 529     CYPool pool;
 530     std::ostringstream str;
 531
 532     str << '[';
 533
 534     JSValueRef length(CYGetProperty(context, _this, length_s));
 535     bool comma(false);
 536
 537     for (size_t index(0), count(CYCastDouble(context, length)); index != count; ++index) {
 538         if (comma)
 539             str << ',';
 540         else
 541             comma = true;
 542
 543         try {
 544             JSValueRef value(CYGetProperty(context, _this, index));
 545             if (!JSValueIsUndefined(context, value))
 546                 str << CYPoolCCYON(pool, context, value, *objects);
 547             else {
 548                 str << ',';
 549                 comma = false;
 550             }
 551         } catch (const CYException &error) {
 552             str << "@error";
 553         }
 554     }
 555
 556     str << ']';
 557
 558     std::string value(str.str());
 559     return CYCastJSValue(context, CYJSString(CYUTF8String(value.c_str(), value.size())));
 560 } CYCatch(NULL) }
 561
 562 static JSValueRef String_callAsFunction_toCYON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
 563     CYPool pool;
 564     std::ostringstream str;
 565
 566     CYUTF8String string(CYPoolUTF8String(pool, context, CYJSString(context, _this)));
 567     CYStringify(str, string.data, string.size);
 568
 569     std::string value(str.str());
 570     return CYCastJSValue(context, CYJSString(CYUTF8String(value.c_str(), value.size())));
 571 } CYCatch(NULL) }
 572
 573 JSObjectRef CYMakePointer(JSContextRef context, void *pointer, size_t length, sig::Type *type, ffi_type *ffi, JSObjectRef owner) {
 574     Pointer *internal(new Pointer(pointer, context, owner, length, type));
 575     return JSObjectMake(context, Pointer_, internal);
 576 }
 577
 578 JSObjectRef CYMakeCString(JSContextRef context, char *pointer, JSObjectRef owner) {
 579     CString *internal(new CString(pointer, context, owner));
 580     return JSObjectMake(context, CString_, internal);
 581 }
 582
 583 static JSObjectRef CYMakeFunctor(JSContextRef context, void (*function)(), const sig::Signature &signature) {
 584     return JSObjectMake(context, Functor_, new cy::Functor(signature, function));
 585 }
 586
 587 static JSObjectRef CYMakeFunctor(JSContextRef context, const char *symbol, const char *encoding, void **cache) {
 588     cy::Functor *internal;
 589     if (*cache != NULL)
 590         internal = reinterpret_cast<cy::Functor *>(*cache);
 591     else {
 592         void (*function)()(reinterpret_cast<void (*)()>(CYCastSymbol(symbol)));
 593         if (function == NULL)
 594             return NULL;
 595
 596         internal = new cy::Functor(encoding, function);
 597         *cache = internal;
 598     }
 599
 600     ++internal->count_;
 601     return JSObjectMake(context, Functor_, internal);
 602 }
 603
 604 static bool CYGetOffset(CYPool &pool, JSContextRef context, JSStringRef value, ssize_t &index) {
 605     return CYGetOffset(CYPoolCString(pool, context, value), index);
 606 }
 607
 608 void *CYCastPointer_(JSContextRef context, JSValueRef value, bool *guess) {
 609     if (value == NULL)
 610         return NULL;
 611     else switch (JSValueGetType(context, value)) {
 612         case kJSTypeNull:
 613             return NULL;
 614         case kJSTypeObject: {
 615             JSObjectRef object((JSObjectRef) value);
 616             if (JSValueIsObjectOfClass(context, value, Pointer_)) {
 617                 Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(object)));
 618                 return internal->value_;
 619             }
 620             JSValueRef toPointer(CYGetProperty(context, object, toPointer_s));
 621             if (CYIsCallable(context, toPointer)) {
 622                 JSValueRef value(CYCallAsFunction(context, (JSObjectRef) toPointer, object, 0, NULL));
 623                 _assert(value != NULL);
 624                 return CYCastPointer_(context, value, guess);
 625             }
 626         } default:
 627             if (guess != NULL)
 628                 *guess = true;
 629         case kJSTypeNumber:
 630             double number(CYCastDouble(context, value));
 631             if (!std::isnan(number))
 632                 return reinterpret_cast<void *>(static_cast<uintptr_t>(static_cast<long long>(number)));
 633             if (guess == NULL)
 634                 throw CYJSError(context, "cannot convert value to pointer");
 635             else {
 636                 *guess = true;
 637                 return NULL;
 638             }
 639     }
 640 }
 641
 642 void CYPoolFFI(CYPool *pool, JSContextRef context, sig::Type *type, ffi_type *ffi, void *data, JSValueRef value) {
 643     switch (type->primitive) {
 644         case sig::boolean_P:
 645             *reinterpret_cast<bool *>(data) = JSValueToBoolean(context, value);
 646         break;
 647
 648 #define CYPoolFFI_(primitive, native) \
 649         case sig::primitive ## _P: \
 650             *reinterpret_cast<native *>(data) = CYCastDouble(context, value); \
 651         break;
 652
 653         CYPoolFFI_(uchar, unsigned char)
 654         CYPoolFFI_(char, char)
 655         CYPoolFFI_(ushort, unsigned short)
 656         CYPoolFFI_(short, short)
 657         CYPoolFFI_(ulong, unsigned long)
 658         CYPoolFFI_(long, long)
 659         CYPoolFFI_(uint, unsigned int)
 660         CYPoolFFI_(int, int)
 661         CYPoolFFI_(ulonglong, unsigned long long)
 662         CYPoolFFI_(longlong, long long)
 663         CYPoolFFI_(float, float)
 664         CYPoolFFI_(double, double)
 665
 666         case sig::array_P: {
 667             uint8_t *base(reinterpret_cast<uint8_t *>(data));
 668             JSObjectRef aggregate(JSValueIsObject(context, value) ? (JSObjectRef) value : NULL);
 669             for (size_t index(0); index != type->data.data.size; ++index) {
 670                 ffi_type *field(ffi->elements[index]);
 671
 672                 JSValueRef rhs;
 673                 if (aggregate == NULL)
 674                     rhs = value;
 675                 else {
 676                     rhs = CYGetProperty(context, aggregate, index);
 677                     if (JSValueIsUndefined(context, rhs))
 678                         throw CYJSError(context, "unable to extract array value");
 679                 }
 680
 681                 CYPoolFFI(pool, context, type->data.data.type, field, base, rhs);
 682                 // XXX: alignment?
 683                 base += field->size;
 684             }
 685         } break;
 686
 687         case sig::pointer_P:
 688             *reinterpret_cast<void **>(data) = CYCastPointer<void *>(context, value);
 689         break;
 690
 691         case sig::string_P: {
 692             bool guess(false);
 693             *reinterpret_cast<const char **>(data) = CYCastPointer<const char *>(context, value, &guess);
 694             if (guess && pool != NULL)
 695                 *reinterpret_cast<const char **>(data) = CYPoolCString(*pool, context, value);
 696         } break;
 697
 698         case sig::struct_P: {
 699             uint8_t *base(reinterpret_cast<uint8_t *>(data));
 700             JSObjectRef aggregate(JSValueIsObject(context, value) ? (JSObjectRef) value : NULL);
 701             for (size_t index(0); index != type->data.signature.count; ++index) {
 702                 sig::Element *element(&type->data.signature.elements[index]);
 703                 ffi_type *field(ffi->elements[index]);
 704
 705                 JSValueRef rhs;
 706                 if (aggregate == NULL)
 707                     rhs = value;
 708                 else {
 709                     rhs = CYGetProperty(context, aggregate, index);
 710                     if (JSValueIsUndefined(context, rhs)) {
 711                         if (element->name != NULL)
 712                             rhs = CYGetProperty(context, aggregate, CYJSString(element->name));
 713                         else
 714                             goto undefined;
 715                         if (JSValueIsUndefined(context, rhs)) undefined:
 716                             throw CYJSError(context, "unable to extract structure value");
 717                     }
 718                 }
 719
 720                 CYPoolFFI(pool, context, element->type, field, base, rhs);
 721                 // XXX: alignment?
 722                 base += field->size;
 723             }
 724         } break;
 725
 726         case sig::void_P:
 727         break;
 728
 729         default:
 730             for (CYHook *hook : GetHooks())
 731                 if (hook->PoolFFI != NULL)
 732                     if ((*hook->PoolFFI)(pool, context, type, ffi, data, value))
 733                         return;
 734
 735             CYThrow("unimplemented signature code: '%c''\n", type->primitive);
 736     }
 737 }
 738
 739 JSValueRef CYFromFFI(JSContextRef context, sig::Type *type, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) {
 740     switch (type->primitive) {
 741         case sig::boolean_P:
 742             return CYCastJSValue(context, *reinterpret_cast<bool *>(data));
 743
 744 #define CYFromFFI_(primitive, native) \
 745         case sig::primitive ## _P: \
 746             return CYCastJSValue(context, *reinterpret_cast<native *>(data)); \
 747
 748         CYFromFFI_(uchar, unsigned char)
 749         CYFromFFI_(char, char)
 750         CYFromFFI_(ushort, unsigned short)
 751         CYFromFFI_(short, short)
 752         CYFromFFI_(ulong, unsigned long)
 753         CYFromFFI_(long, long)
 754         CYFromFFI_(uint, unsigned int)
 755         CYFromFFI_(int, int)
 756         CYFromFFI_(ulonglong, unsigned long long)
 757         CYFromFFI_(longlong, long long)
 758         CYFromFFI_(float, float)
 759         CYFromFFI_(double, double)
 760
 761         case sig::array_P:
 762             if (void *pointer = data)
 763                 return CYMakePointer(context, pointer, type->data.data.size, type->data.data.type, NULL, owner);
 764             else goto null;
 765
 766         case sig::pointer_P:
 767             if (void *pointer = *reinterpret_cast<void **>(data))
 768                 return CYMakePointer(context, pointer, _not(size_t), type->data.data.type, NULL, owner);
 769             else goto null;
 770
 771         case sig::string_P:
 772             if (char *pointer = *reinterpret_cast<char **>(data))
 773                 return CYMakeCString(context, pointer, owner);
 774             else goto null;
 775
 776         case sig::struct_P:
 777             return CYMakeStruct(context, data, type, ffi, owner);
 778         case sig::void_P:
 779             return CYJSUndefined(context);
 780
 781         null:
 782             return CYJSNull(context);
 783         default:
 784             for (CYHook *hook : GetHooks())
 785                 if (hook->FromFFI != NULL)
 786                     if (JSValueRef value = (*hook->FromFFI)(context, type, ffi, data, initialize, owner))
 787                         return value;
 788
 789             CYThrow("unimplemented signature code: '%c''\n", type->primitive);
 790     }
 791 }
 792
 793 void CYExecuteClosure(ffi_cif *cif, void *result, void **arguments, void *arg) {
 794     Closure_privateData *internal(reinterpret_cast<Closure_privateData *>(arg));
 795
 796     JSContextRef context(internal->context_);
 797
 798     size_t count(internal->cif_.nargs);
 799     JSValueRef values[count];
 800
 801     for (size_t index(0); index != count; ++index)
 802         values[index] = CYFromFFI(context, internal->signature_.elements[1 + index].type, internal->cif_.arg_types[index], arguments[index]);
 803
 804     JSValueRef value(internal->adapter_(context, count, values, internal->function_));
 805     CYPoolFFI(NULL, context, internal->signature_.elements[0].type, internal->cif_.rtype, result, value);
 806 }
 807
 808 static JSValueRef FunctionAdapter_(JSContextRef context, size_t count, JSValueRef values[], JSObjectRef function) {
 809     return CYCallAsFunction(context, function, NULL, count, values);
 810 }
 811
 812 Closure_privateData *CYMakeFunctor_(JSContextRef context, JSObjectRef function, const sig::Signature &signature, JSValueRef (*adapter)(JSContextRef, size_t, JSValueRef[], JSObjectRef)) {
 813     // XXX: in case of exceptions this will leak
 814     // XXX: in point of fact, this may /need/ to leak :(
 815     Closure_privateData *internal(new Closure_privateData(context, function, adapter, signature));
 816
 817 #if defined(__APPLE__) && (defined(__arm__) || defined(__arm64__))
 818     void *executable;
 819     ffi_closure *writable(reinterpret_cast<ffi_closure *>(ffi_closure_alloc(sizeof(ffi_closure), &executable)));
 820
 821     ffi_status status(ffi_prep_closure_loc(writable, &internal->cif_, &CYExecuteClosure, internal, executable));
 822     _assert(status == FFI_OK);
 823
 824     internal->value_ = executable;
 825 #else
 826     ffi_closure *closure((ffi_closure *) _syscall(mmap(
 827         NULL, sizeof(ffi_closure),
 828         PROT_READ | PROT_WRITE, MAP_ANON | MAP_PRIVATE,
 829         -1, 0
 830     )));
 831
 832     ffi_status status(ffi_prep_closure(closure, &internal->cif_, &CYExecuteClosure, internal));
 833     _assert(status == FFI_OK);
 834
 835     _syscall(mprotect(closure, sizeof(*closure), PROT_READ | PROT_EXEC));
 836
 837     internal->value_ = closure;
 838 #endif
 839
 840     return internal;
 841 }
 842
 843 static JSObjectRef CYMakeFunctor(JSContextRef context, JSObjectRef function, const sig::Signature &signature) {
 844     Closure_privateData *internal(CYMakeFunctor_(context, function, signature, &FunctionAdapter_));
 845     JSObjectRef object(JSObjectMake(context, Functor_, internal));
 846     // XXX: see above notes about needing to leak
 847     JSValueProtect(CYGetJSContext(context), object);
 848     return object;
 849 }
 850
 851 JSValueRef CYGetCachedValue(JSContextRef context, JSStringRef name) {
 852     return CYGetProperty(context, CYCastJSObject(context, CYGetProperty(context, CYGetGlobalObject(context), cy_s)), name);
 853 }
 854
 855 JSObjectRef CYGetCachedObject(JSContextRef context, JSStringRef name) {
 856     return CYCastJSObject(context, CYGetCachedValue(context, name));
 857 }
 858
 859 static JSObjectRef CYMakeFunctor(JSContextRef context, JSValueRef value, const sig::Signature &signature) {
 860     JSObjectRef Function(CYGetCachedObject(context, CYJSString("Function")));
 861
 862     bool function(_jsccall(JSValueIsInstanceOfConstructor, context, value, Function));
 863     if (function) {
 864         JSObjectRef function(CYCastJSObject(context, value));
 865         return CYMakeFunctor(context, function, signature);
 866     } else {
 867         void (*function)()(CYCastPointer<void (*)()>(context, value));
 868         return CYMakeFunctor(context, function, signature);
 869     }
 870 }
 871
 872 static JSValueRef CString_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
 873     CYPool pool;
 874     CString *internal(reinterpret_cast<CString *>(JSObjectGetPrivate(object)));
 875     char *string(static_cast<char *>(internal->value_));
 876
 877     ssize_t offset;
 878     if (!CYGetOffset(pool, context, property, offset))
 879         return NULL;
 880
 881     return CYCastJSValue(context, CYJSString(CYUTF8String(&string[offset], 1)));
 882 } CYCatch(NULL) }
 883
 884 static bool CString_setProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef value, JSValueRef *exception) { CYTry {
 885     CYPool pool;
 886     CString *internal(reinterpret_cast<CString *>(JSObjectGetPrivate(object)));
 887     char *string(static_cast<char *>(internal->value_));
 888
 889     ssize_t offset;
 890     if (!CYGetOffset(pool, context, property, offset))
 891         return false;
 892
 893     const char *data(CYPoolCString(pool, context, value));
 894     string[offset] = *data;
 895     return true;
 896 } CYCatch(false) }
 897
 898 static bool Index_(CYPool &pool, JSContextRef context, Struct_privateData *internal, JSStringRef property, ssize_t &index, uint8_t *&base) {
 899     Type_privateData *typical(internal->type_);
 900     sig::Type *type(typical->type_);
 901     if (type == NULL)
 902         return false;
 903
 904     const char *name(CYPoolCString(pool, context, property));
 905     size_t length(strlen(name));
 906     double number(CYCastDouble(name, length));
 907
 908     size_t count(type->data.signature.count);
 909
 910     if (std::isnan(number)) {
 911         if (property == NULL)
 912             return false;
 913
 914         sig::Element *elements(type->data.signature.elements);
 915
 916         for (size_t local(0); local != count; ++local) {
 917             sig::Element *element(&elements[local]);
 918             if (element->name != NULL && strcmp(name, element->name) == 0) {
 919                 index = local;
 920                 goto base;
 921             }
 922         }
 923
 924         return false;
 925     } else {
 926         index = static_cast<ssize_t>(number);
 927         if (index != number || index < 0 || static_cast<size_t>(index) >= count)
 928             return false;
 929     }
 930
 931   base:
 932     ffi_type **elements(typical->GetFFI()->elements);
 933
 934     base = reinterpret_cast<uint8_t *>(internal->value_);
 935     for (ssize_t local(0); local != index; ++local)
 936         base += elements[local]->size;
 937
 938     return true;
 939 }
 940
 941 static JSValueRef Pointer_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
 942     CYPool pool;
 943     Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(object)));
 944
 945     if (JSStringIsEqual(property, length_s))
 946         return internal->length_ == _not(size_t) ? CYJSUndefined(context) : CYCastJSValue(context, internal->length_);
 947
 948     Type_privateData *typical(internal->type_);
 949     if (typical->type_ == NULL)
 950         return NULL;
 951     sig::Type &type(*typical->type_);
 952
 953     ssize_t offset;
 954     if (JSStringIsEqualToUTF8CString(property, "$cyi"))
 955         offset = 0;
 956     else if (!CYGetOffset(pool, context, property, offset))
 957         return NULL;
 958
 959     if (type.primitive == sig::function_P)
 960         return CYMakeFunctor(context, reinterpret_cast<void (*)()>(internal->value_), type.data.signature);
 961
 962     ffi_type *ffi(typical->GetFFI());
 963
 964     uint8_t *base(reinterpret_cast<uint8_t *>(internal->value_));
 965     base += ffi->size * offset;
 966
 967     JSObjectRef owner(internal->GetOwner() ?: object);
 968     return CYFromFFI(context, &type, ffi, base, false, owner);
 969 } CYCatch(NULL) }
 970
 971 static bool Pointer_setProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef value, JSValueRef *exception) { CYTry {
 972     CYPool pool;
 973     Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(object)));
 974     Type_privateData *typical(internal->type_);
 975
 976     if (typical->type_ == NULL)
 977         return false;
 978
 979     ssize_t offset;
 980     if (JSStringIsEqualToUTF8CString(property, "$cyi"))
 981         offset = 0;
 982     else if (!CYGetOffset(pool, context, property, offset))
 983         return false;
 984
 985     ffi_type *ffi(typical->GetFFI());
 986
 987     uint8_t *base(reinterpret_cast<uint8_t *>(internal->value_));
 988     base += ffi->size * offset;
 989
 990     CYPoolFFI(NULL, context, typical->type_, ffi, base, value);
 991     return true;
 992 } CYCatch(false) }
 993
 994 static JSValueRef Struct_callAsFunction_$cya(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
 995     Struct_privateData *internal(reinterpret_cast<Struct_privateData *>(JSObjectGetPrivate(_this)));
 996     Type_privateData *typical(internal->type_);
 997     return CYMakePointer(context, internal->value_, _not(size_t), typical->type_, typical->ffi_, _this);
 998 } CYCatch(NULL) }
 999
1000 static JSValueRef Struct_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1001     CYPool pool;
1002     Struct_privateData *internal(reinterpret_cast<Struct_privateData *>(JSObjectGetPrivate(object)));
1003     Type_privateData *typical(internal->type_);
1004
1005     ssize_t index;
1006     uint8_t *base;
1007
1008     if (!Index_(pool, context, internal, property, index, base))
1009         return NULL;
1010
1011     JSObjectRef owner(internal->GetOwner() ?: object);
1012
1013     return CYFromFFI(context, typical->type_->data.signature.elements[index].type, typical->GetFFI()->elements[index], base, false, owner);
1014 } CYCatch(NULL) }
1015
1016 static bool Struct_setProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef value, JSValueRef *exception) { CYTry {
1017     CYPool pool;
1018     Struct_privateData *internal(reinterpret_cast<Struct_privateData *>(JSObjectGetPrivate(object)));
1019     Type_privateData *typical(internal->type_);
1020
1021     ssize_t index;
1022     uint8_t *base;
1023
1024     if (!Index_(pool, context, internal, property, index, base))
1025         return false;
1026
1027     CYPoolFFI(NULL, context, typical->type_->data.signature.elements[index].type, typical->GetFFI()->elements[index], base, value);
1028     return true;
1029 } CYCatch(false) }
1030
1031 static void Struct_getPropertyNames(JSContextRef context, JSObjectRef object, JSPropertyNameAccumulatorRef names) {
1032     Struct_privateData *internal(reinterpret_cast<Struct_privateData *>(JSObjectGetPrivate(object)));
1033     Type_privateData *typical(internal->type_);
1034     sig::Type *type(typical->type_);
1035
1036     if (type == NULL)
1037         return;
1038
1039     size_t count(type->data.signature.count);
1040     sig::Element *elements(type->data.signature.elements);
1041
1042     char number[32];
1043
1044     for (size_t index(0); index != count; ++index) {
1045         const char *name;
1046         name = elements[index].name;
1047
1048         if (name == NULL) {
1049             sprintf(number, "%zu", index);
1050             name = number;
1051         }
1052
1053         JSPropertyNameAccumulatorAddName(names, CYJSString(name));
1054     }
1055 }
1056
1057 void CYCallFunction(CYPool &pool, JSContextRef context, ffi_cif *cif, void (*function)(), void *value, void **values) {
1058     ffi_call(cif, function, value, values);
1059 }
1060
1061 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)()) {
1062     if (setups + count != signature->count - 1)
1063         throw CYJSError(context, "incorrect number of arguments to ffi function");
1064
1065     size_t size(setups + count);
1066     void *values[size];
1067     memcpy(values, setup, sizeof(void *) * setups);
1068
1069     for (size_t index(setups); index != size; ++index) {
1070         sig::Element *element(&signature->elements[index + 1]);
1071         ffi_type *ffi(cif->arg_types[index]);
1072         // XXX: alignment?
1073         values[index] = new(pool) uint8_t[ffi->size];
1074         CYPoolFFI(&pool, context, element->type, ffi, values[index], arguments[index - setups]);
1075     }
1076
1077     uint8_t value[cif->rtype->size];
1078
1079     void (*call)(CYPool &, JSContextRef, ffi_cif *, void (*)(), void *, void **) = &CYCallFunction;
1080     // XXX: this only supports one hook, but it is a bad idea anyway
1081     for (CYHook *hook : GetHooks())
1082         if (hook->CallFunction != NULL)
1083             call = hook->CallFunction;
1084
1085     call(pool, context, cif, function, value, values);
1086     return CYFromFFI(context, signature->elements[0].type, cif->rtype, value, initialize);
1087 }
1088
1089 static JSValueRef Functor_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1090     CYPool pool;
1091     cy::Functor *internal(reinterpret_cast<cy::Functor *>(JSObjectGetPrivate(object)));
1092     return CYCallFunction(pool, context, 0, NULL, count, arguments, false, &internal->signature_, &internal->cif_, internal->GetValue());
1093 } CYCatch(NULL) }
1094
1095 JSObjectRef CYMakeType(JSContextRef context, const char *encoding) {
1096     Type_privateData *internal(new Type_privateData(encoding));
1097     return JSObjectMake(context, Type_privateData::Class_, internal);
1098 }
1099
1100 JSObjectRef CYMakeType(JSContextRef context, sig::Type *type) {
1101     Type_privateData *internal(new Type_privateData(type));
1102     return JSObjectMake(context, Type_privateData::Class_, internal);
1103 }
1104
1105 JSObjectRef CYMakeType(JSContextRef context, sig::Signature *signature) {
1106     CYPool pool;
1107
1108     sig::Type type;
1109     type.name = NULL;
1110     type.flags = 0;
1111
1112     type.primitive = sig::function_P;
1113     sig::Copy(pool, type.data.signature, *signature);
1114
1115     return CYMakeType(context, &type);
1116 }
1117
1118 static bool All_hasProperty(JSContextRef context, JSObjectRef object, JSStringRef property) {
1119     JSObjectRef global(CYGetGlobalObject(context));
1120     JSObjectRef cycript(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Cycript"))));
1121     JSObjectRef alls(CYCastJSObject(context, CYGetProperty(context, cycript, CYJSString("alls"))));
1122
1123     for (size_t i(0), count(CYArrayLength(context, alls)); i != count; ++i)
1124         if (JSObjectRef space = CYCastJSObject(context, CYArrayGet(context, alls, count - i - 1)))
1125             if (CYHasProperty(context, space, property))
1126                 return true;
1127
1128     CYPool pool;
1129     CYUTF8String name(CYPoolUTF8String(pool, context, property));
1130
1131     size_t length(name.size);
1132     char keyed[length + 2];
1133     memcpy(keyed + 1, name.data, length + 1);
1134
1135     static const char *modes = "0124";
1136     for (size_t i(0); i != 4; ++i) {
1137         keyed[0] = modes[i];
1138         if (CYBridgeHash(keyed, length + 1) != NULL)
1139             return true;
1140     }
1141
1142     return false;
1143 }
1144
1145 static JSValueRef All_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1146     JSObjectRef global(CYGetGlobalObject(context));
1147     JSObjectRef cycript(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Cycript"))));
1148     JSObjectRef alls(CYCastJSObject(context, CYGetProperty(context, cycript, CYJSString("alls"))));
1149
1150     for (size_t i(0), count(CYArrayLength(context, alls)); i != count; ++i)
1151         if (JSObjectRef space = CYCastJSObject(context, CYArrayGet(context, alls, count - i - 1)))
1152             if (JSValueRef value = CYGetProperty(context, space, property))
1153                 if (!JSValueIsUndefined(context, value))
1154                     return value;
1155
1156     CYPool pool;
1157     CYUTF8String name(CYPoolUTF8String(pool, context, property));
1158
1159     size_t length(name.size);
1160     char keyed[length + 2];
1161     memcpy(keyed + 1, name.data, length + 1);
1162
1163     static const char *modes = "0124";
1164     for (size_t i(0); i != 4; ++i) {
1165         char mode(modes[i]);
1166         keyed[0] = mode;
1167
1168         if (CYBridgeEntry *entry = CYBridgeHash(keyed, length + 1))
1169             switch (mode) {
1170                 case '0':
1171                     return JSEvaluateScript(CYGetJSContext(context), CYJSString(entry->value_), NULL, NULL, 0, NULL);
1172
1173                 case '1':
1174                     return CYMakeFunctor(context, name.data, entry->value_, &entry->cache_);
1175
1176                 case '2':
1177                     if (void *symbol = CYCastSymbol(name.data)) {
1178                         // XXX: this is horrendously inefficient
1179                         sig::Signature signature;
1180                         sig::Parse(pool, &signature, entry->value_, &Structor_);
1181                         ffi_cif cif;
1182                         sig::sig_ffi_cif(pool, &sig::ObjectiveC, &signature, &cif);
1183                         return CYFromFFI(context, signature.elements[0].type, cif.rtype, symbol);
1184                     } else return NULL;
1185
1186                 // XXX: implement case 3
1187                 case '4':
1188                     return CYMakeType(context, entry->value_);
1189             }
1190     }
1191
1192     return NULL;
1193 } CYCatch(NULL) }
1194
1195 static void All_getPropertyNames(JSContextRef context, JSObjectRef object, JSPropertyNameAccumulatorRef names) {
1196     JSObjectRef global(CYGetGlobalObject(context));
1197     JSObjectRef cycript(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Cycript"))));
1198     JSObjectRef alls(CYCastJSObject(context, CYGetProperty(context, cycript, CYJSString("alls"))));
1199
1200     for (size_t i(0), count(CYArrayLength(context, alls)); i != count; ++i)
1201         if (JSObjectRef space = CYCastJSObject(context, CYArrayGet(context, alls, count - i - 1))) {
1202             JSPropertyNameArrayRef subset(JSObjectCopyPropertyNames(context, space));
1203             for (size_t index(0), count(JSPropertyNameArrayGetCount(subset)); index != count; ++index)
1204                 JSPropertyNameAccumulatorAddName(names, JSPropertyNameArrayGetNameAtIndex(subset, index));
1205             JSPropertyNameArrayRelease(subset);
1206         }
1207 }
1208
1209 static JSObjectRef CString_new(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1210     if (count != 1)
1211         throw CYJSError(context, "incorrect number of arguments to CString constructor");
1212     char *value(CYCastPointer<char *>(context, arguments[0]));
1213     return CYMakeCString(context, value, NULL);
1214 } CYCatch(NULL) }
1215
1216 static JSObjectRef Pointer_new(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1217     if (count != 2)
1218         throw CYJSError(context, "incorrect number of arguments to Pointer constructor");
1219
1220     CYPool pool;
1221
1222     void *value(CYCastPointer<void *>(context, arguments[0]));
1223     const char *type(CYPoolCString(pool, context, arguments[1]));
1224
1225     sig::Signature signature;
1226     sig::Parse(pool, &signature, type, &Structor_);
1227
1228     return CYMakePointer(context, value, _not(size_t), signature.elements[0].type, NULL, NULL);
1229 } CYCatch(NULL) }
1230
1231 static JSObjectRef Type_new(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1232     CYPool pool;
1233
1234     if (false) {
1235     } else if (count == 1) {
1236         const char *type(CYPoolCString(pool, context, arguments[0]));
1237         return CYMakeType(context, type);
1238     } else if (count == 2) {
1239         JSObjectRef types(CYCastJSObject(context, arguments[0]));
1240         size_t count(CYArrayLength(context, types));
1241
1242         JSObjectRef names(CYCastJSObject(context, arguments[1]));
1243
1244         sig::Type type;
1245         type.name = NULL;
1246         type.flags = 0;
1247
1248         type.primitive = sig::struct_P;
1249         type.data.signature.elements = new(pool) sig::Element[count];
1250         type.data.signature.count = count;
1251
1252         for (size_t i(0); i != count; ++i) {
1253             sig::Element &element(type.data.signature.elements[i]);
1254             element.offset = _not(size_t);
1255
1256             JSValueRef name(CYArrayGet(context, names, i));
1257             if (JSValueIsUndefined(context, name))
1258                 element.name = NULL;
1259             else
1260                 element.name = CYPoolCString(pool, context, name);
1261
1262             JSObjectRef object(CYCastJSObject(context, CYArrayGet(context, types, i)));
1263             _assert(JSValueIsObjectOfClass(context, object, Type_privateData::Class_));
1264             Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
1265             element.type = internal->type_;
1266         }
1267
1268         return CYMakeType(context, &type);
1269     } else {
1270         throw CYJSError(context, "incorrect number of arguments to Type constructor");
1271     }
1272 } CYCatch(NULL) }
1273
1274 static JSValueRef Type_callAsFunction_$With(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], sig::Primitive primitive, JSValueRef *exception) { CYTry {
1275     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1276
1277     CYPool pool;
1278
1279     sig::Type type;
1280     type.name = NULL;
1281     type.flags = 0;
1282
1283     type.primitive = primitive;
1284     type.data.signature.elements = new(pool) sig::Element[1 + count];
1285     type.data.signature.count = 1 + count;
1286
1287     type.data.signature.elements[0].name = NULL;
1288     type.data.signature.elements[0].type = internal->type_;
1289     type.data.signature.elements[0].offset = _not(size_t);
1290
1291     for (size_t i(0); i != count; ++i) {
1292         sig::Element &element(type.data.signature.elements[i + 1]);
1293         element.name = NULL;
1294         element.offset = _not(size_t);
1295
1296         JSObjectRef object(CYCastJSObject(context, arguments[i]));
1297         _assert(JSValueIsObjectOfClass(context, object, Type_privateData::Class_));
1298         Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
1299
1300         element.type = internal->type_;
1301     }
1302
1303     return CYMakeType(context, &type);
1304 } CYCatch(NULL) }
1305
1306 static JSValueRef Type_callAsFunction_arrayOf(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1307     if (count != 1)
1308         throw CYJSError(context, "incorrect number of arguments to Type.arrayOf");
1309     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1310
1311     CYPool pool;
1312     size_t index(CYGetIndex(pool, context, CYJSString(context, arguments[0])));
1313     if (index == _not(size_t))
1314         throw CYJSError(context, "invalid array size used with Type.arrayOf");
1315
1316     sig::Type type;
1317     type.name = NULL;
1318     type.flags = 0;
1319
1320     type.primitive = sig::array_P;
1321     type.data.data.type = internal->type_;
1322     type.data.data.size = index;
1323
1324     return CYMakeType(context, &type);
1325 } CYCatch(NULL) }
1326
1327 static JSValueRef Type_callAsFunction_blockWith(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
1328     return Type_callAsFunction_$With(context, object, _this, count, arguments, sig::block_P, exception);
1329 }
1330
1331 static JSValueRef Type_callAsFunction_constant(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1332     if (count != 0)
1333         throw CYJSError(context, "incorrect number of arguments to Type.constant");
1334     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1335
1336     sig::Type type(*internal->type_);
1337     type.flags |= JOC_TYPE_CONST;
1338     return CYMakeType(context, &type);
1339 } CYCatch(NULL) }
1340
1341 static JSValueRef Type_callAsFunction_long(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1342     if (count != 0)
1343         throw CYJSError(context, "incorrect number of arguments to Type.long");
1344     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1345
1346     sig::Type type(*internal->type_);
1347
1348     switch (type.primitive) {
1349         case sig::short_P: type.primitive = sig::int_P; break;
1350         case sig::int_P: type.primitive = sig::long_P; break;
1351         case sig::long_P: type.primitive = sig::longlong_P; break;
1352         default: throw CYJSError(context, "invalid type argument to Type.long");
1353     }
1354
1355     return CYMakeType(context, &type);
1356 } CYCatch(NULL) }
1357
1358 static JSValueRef Type_callAsFunction_short(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1359     if (count != 0)
1360         throw CYJSError(context, "incorrect number of arguments to Type.short");
1361     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1362
1363     sig::Type type(*internal->type_);
1364
1365     switch (type.primitive) {
1366         case sig::int_P: type.primitive = sig::short_P; break;
1367         case sig::long_P: type.primitive = sig::int_P; break;
1368         case sig::longlong_P: type.primitive = sig::long_P; break;
1369         default: throw CYJSError(context, "invalid type argument to Type.short");
1370     }
1371
1372     return CYMakeType(context, &type);
1373 } CYCatch(NULL) }
1374
1375 static JSValueRef Type_callAsFunction_signed(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1376     if (count != 0)
1377         throw CYJSError(context, "incorrect number of arguments to Type.signed");
1378     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1379
1380     sig::Type type(*internal->type_);
1381
1382     switch (type.primitive) {
1383         case sig::char_P: case sig::uchar_P: type.primitive = sig::char_P; break;
1384         case sig::short_P: case sig::ushort_P: type.primitive = sig::short_P; break;
1385         case sig::int_P: case sig::uint_P: type.primitive = sig::int_P; break;
1386         case sig::long_P: case sig::ulong_P: type.primitive = sig::long_P; break;
1387         case sig::longlong_P: case sig::ulonglong_P: type.primitive = sig::longlong_P; break;
1388         default: throw CYJSError(context, "invalid type argument to Type.signed");
1389     }
1390
1391     return CYMakeType(context, &type);
1392 } CYCatch(NULL) }
1393
1394 static JSValueRef Type_callAsFunction_unsigned(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1395     if (count != 0)
1396         throw CYJSError(context, "incorrect number of arguments to Type.unsigned");
1397     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1398
1399     sig::Type type(*internal->type_);
1400
1401     switch (type.primitive) {
1402         case sig::char_P: case sig::uchar_P: type.primitive = sig::uchar_P; break;
1403         case sig::short_P: case sig::ushort_P: type.primitive = sig::ushort_P; break;
1404         case sig::int_P: case sig::uint_P: type.primitive = sig::uint_P; break;
1405         case sig::long_P: case sig::ulong_P: type.primitive = sig::ulong_P; break;
1406         case sig::longlong_P: case sig::ulonglong_P: type.primitive = sig::ulonglong_P; break;
1407         default: throw CYJSError(context, "invalid type argument to Type.unsigned");
1408     }
1409
1410     return CYMakeType(context, &type);
1411 } CYCatch(NULL) }
1412
1413 static JSValueRef Type_callAsFunction_functionWith(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
1414     return Type_callAsFunction_$With(context, object, _this, count, arguments, sig::function_P, exception);
1415 }
1416
1417 static JSValueRef Type_callAsFunction_pointerTo(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1418     if (count != 0)
1419         throw CYJSError(context, "incorrect number of arguments to Type.pointerTo");
1420     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1421
1422     sig::Type type;
1423     type.name = NULL;
1424
1425     if (internal->type_->primitive == sig::char_P) {
1426         type.flags = internal->type_->flags;
1427         type.primitive = sig::string_P;
1428         type.data.data.type = NULL;
1429         type.data.data.size = 0;
1430     } else {
1431         type.flags = 0;
1432         type.primitive = sig::pointer_P;
1433         type.data.data.type = internal->type_;
1434         type.data.data.size = 0;
1435     }
1436
1437     return CYMakeType(context, &type);
1438 } CYCatch(NULL) }
1439
1440 static JSValueRef Type_callAsFunction_withName(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1441     if (count != 1)
1442         throw CYJSError(context, "incorrect number of arguments to Type.withName");
1443     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1444
1445     CYPool pool;
1446     const char *name(CYPoolCString(pool, context, arguments[0]));
1447
1448     sig::Type type(*internal->type_);
1449     type.name = name;
1450     return CYMakeType(context, &type);
1451 } CYCatch(NULL) }
1452
1453 static JSValueRef Type_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1454     if (count != 1)
1455         throw CYJSError(context, "incorrect number of arguments to type cast function");
1456     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
1457
1458     if (internal->type_->primitive == sig::function_P)
1459         return CYMakeFunctor(context, arguments[0], internal->type_->data.signature);
1460
1461     sig::Type *type(internal->type_);
1462     ffi_type *ffi(internal->GetFFI());
1463     // XXX: alignment?
1464     uint8_t value[ffi->size];
1465     CYPool pool;
1466     CYPoolFFI(&pool, context, type, ffi, value, arguments[0]);
1467     return CYFromFFI(context, type, ffi, value);
1468 } CYCatch(NULL) }
1469
1470 static JSObjectRef Type_callAsConstructor(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1471     if (count != 0)
1472         throw CYJSError(context, "incorrect number of arguments to Type allocator");
1473     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
1474
1475     sig::Type *type(internal->type_);
1476     size_t length;
1477
1478     if (type->primitive != sig::array_P)
1479         length = _not(size_t);
1480     else {
1481         length = type->data.data.size;
1482         type = type->data.data.type;
1483     }
1484
1485     void *value(calloc(1, internal->GetFFI()->size));
1486     return CYMakePointer(context, value, length, type, NULL, NULL);
1487 } CYCatch(NULL) }
1488
1489 static JSObjectRef Functor_new(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1490     if (count != 2)
1491         throw CYJSError(context, "incorrect number of arguments to Functor constructor");
1492     CYPool pool;
1493     const char *encoding(CYPoolCString(pool, context, arguments[1]));
1494     sig::Signature signature;
1495     sig::Parse(pool, &signature, encoding, &Structor_);
1496     return CYMakeFunctor(context, arguments[0], signature);
1497 } CYCatch(NULL) }
1498
1499 static JSValueRef CString_callAsFunction_toPointer(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1500     CString *internal(reinterpret_cast<CString *>(JSObjectGetPrivate(_this)));
1501
1502     sig::Type type;
1503     type.name = NULL;
1504     type.flags = 0;
1505
1506     type.primitive = sig::char_P;
1507     type.data.data.type = NULL;
1508     type.data.data.size = 0;
1509
1510     return CYMakePointer(context, internal->value_, _not(size_t), &type, NULL, NULL);
1511 } CYCatch(NULL) }
1512
1513 static JSValueRef Functor_callAsFunction_toPointer(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1514     CYPool pool;
1515     cy::Functor *internal(reinterpret_cast<cy::Functor *>(JSObjectGetPrivate(_this)));
1516
1517     sig::Type type;
1518     type.name = NULL;
1519     type.flags = 0;
1520
1521     type.primitive = sig::function_P;
1522     sig::Copy(pool, type.data.signature, internal->signature_);
1523
1524     return CYMakePointer(context, internal->value_, _not(size_t), &type, NULL, NULL);
1525 } CYCatch(NULL) }
1526
1527 static JSValueRef Pointer_callAsFunction_toPointer(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1528     return _this;
1529 } CYCatch(NULL) }
1530
1531 static JSValueRef CYValue_callAsFunction_valueOf(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1532     CYValue *internal(reinterpret_cast<CYValue *>(JSObjectGetPrivate(_this)));
1533     return CYCastJSValue(context, reinterpret_cast<uintptr_t>(internal->value_));
1534 } CYCatch(NULL) }
1535
1536 static JSValueRef CYValue_callAsFunction_toJSON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
1537     return CYValue_callAsFunction_valueOf(context, object, _this, count, arguments, exception);
1538 }
1539
1540 static JSValueRef CYValue_callAsFunction_toCYON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1541     CYValue *internal(reinterpret_cast<CYValue *>(JSObjectGetPrivate(_this)));
1542     char string[32];
1543     sprintf(string, "%p", internal->value_);
1544     return CYCastJSValue(context, string);
1545 } CYCatch(NULL) }
1546
1547 static JSValueRef Pointer_callAsFunction_toCYON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1548     std::set<void *> *objects(CYCastObjects(context, _this, count, arguments));
1549
1550     Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(_this)));
1551     if (internal->length_ != _not(size_t)) {
1552         JSObjectRef Array(CYGetCachedObject(context, CYJSString("Array_prototype")));
1553         JSObjectRef toCYON(CYCastJSObject(context, CYGetProperty(context, Array, toCYON_s)));
1554         return CYCallAsFunction(context, toCYON, _this, count, arguments);
1555     } else if (internal->type_->type_ == NULL) pointer: {
1556         CYLocalPool pool;
1557         std::ostringstream str;
1558
1559         sig::Type type;
1560         type.name = NULL;
1561         type.flags = 0;
1562
1563         type.primitive = sig::pointer_P;
1564         type.data.data.type = internal->type_->type_;
1565         type.data.data.size = 0;
1566
1567         CYOptions options;
1568         CYOutput output(*str.rdbuf(), options);
1569         (new(pool) CYTypeExpression(Decode(pool, &type)))->Output(output, CYNoFlags);
1570
1571         str << "(" << internal->value_ << ")";
1572         std::string value(str.str());
1573         return CYCastJSValue(context, CYJSString(CYUTF8String(value.c_str(), value.size())));
1574     } else try {
1575         JSValueRef value(CYGetProperty(context, _this, cyi_s));
1576         if (JSValueIsUndefined(context, value))
1577             goto pointer;
1578         CYPool pool;
1579         return CYCastJSValue(context, pool.strcat("&", CYPoolCCYON(pool, context, value, objects), NULL));
1580     } catch (const CYException &e) {
1581         goto pointer;
1582     }
1583 } CYCatch(NULL) }
1584
1585 static JSValueRef CString_getProperty_length(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1586     CString *internal(reinterpret_cast<CString *>(JSObjectGetPrivate(object)));
1587     char *string(static_cast<char *>(internal->value_));
1588     return CYCastJSValue(context, strlen(string));
1589 } CYCatch(NULL) }
1590
1591 static JSValueRef CString_getProperty_type(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1592     sig::Type type;
1593     type.name = NULL;
1594     type.flags = 0;
1595
1596     type.primitive = sig::char_P;
1597     type.data.data.type = NULL;
1598     type.data.data.size = 0;
1599
1600     return CYMakeType(context, &type);
1601 } CYCatch(NULL) }
1602
1603 static JSValueRef Pointer_getProperty_type(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1604     Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(object)));
1605     return CYMakeType(context, internal->type_->type_);
1606 } CYCatch(NULL) }
1607
1608 static JSValueRef CString_callAsFunction_toCYON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1609     Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(_this)));
1610     const char *string(static_cast<const char *>(internal->value_));
1611     std::ostringstream str;
1612     str << "&";
1613     CYStringify(str, string, strlen(string));
1614     std::string value(str.str());
1615     return CYCastJSValue(context, CYJSString(CYUTF8String(value.c_str(), value.size())));
1616 } CYCatch(NULL) }
1617
1618 static JSValueRef CString_callAsFunction_toString(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1619     Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(_this)));
1620     const char *string(static_cast<const char *>(internal->value_));
1621     return CYCastJSValue(context, string);
1622 } CYCatch(NULL) }
1623
1624 static JSValueRef Functor_getProperty_type(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1625     cy::Functor *internal(reinterpret_cast<cy::Functor *>(JSObjectGetPrivate(object)));
1626     return CYMakeType(context, &internal->signature_);
1627 } CYCatch(NULL) }
1628
1629 static JSValueRef Type_getProperty_alignment(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1630     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
1631     return CYCastJSValue(context, internal->GetFFI()->alignment);
1632 } CYCatch(NULL) }
1633
1634 static JSValueRef Type_getProperty_name(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1635     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
1636     return CYCastJSValue(context, internal->type_->name);
1637 } CYCatch(NULL) }
1638
1639 static JSValueRef Type_getProperty_size(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1640     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
1641     return CYCastJSValue(context, internal->GetFFI()->size);
1642 } CYCatch(NULL) }
1643
1644 static JSValueRef Type_callAsFunction_toString(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1645     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1646     CYPool pool;
1647     const char *type(sig::Unparse(pool, internal->type_));
1648     return CYCastJSValue(context, CYJSString(type));
1649 } CYCatch(NULL) }
1650
1651 static JSValueRef Type_callAsFunction_toCYON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1652     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1653     CYLocalPool pool;
1654     std::stringbuf out;
1655     CYOptions options;
1656     CYOutput output(out, options);
1657     (new(pool) CYTypeExpression(Decode(pool, internal->type_)))->Output(output, CYNoFlags);
1658     return CYCastJSValue(context, CYJSString(out.str().c_str()));
1659 } CYCatch(NULL) }
1660
1661 static JSValueRef Type_callAsFunction_toJSON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
1662     return Type_callAsFunction_toString(context, object, _this, count, arguments, exception);
1663 }
1664
1665 static JSStaticFunction CString_staticFunctions[6] = {
1666     {"toCYON", &CString_callAsFunction_toCYON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1667     {"toJSON", &CYValue_callAsFunction_toJSON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1668     {"toPointer", &CString_callAsFunction_toPointer, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1669     {"toString", &CString_callAsFunction_toString, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1670     {"valueOf", &CString_callAsFunction_toString, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1671     {NULL, NULL, 0}
1672 };
1673
1674 static JSStaticValue CString_staticValues[3] = {
1675     {"length", &CString_getProperty_length, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1676     {"type", &CString_getProperty_type, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1677     {NULL, NULL, NULL, 0}
1678 };
1679
1680 static JSStaticFunction Pointer_staticFunctions[5] = {
1681     {"toCYON", &Pointer_callAsFunction_toCYON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1682     {"toJSON", &CYValue_callAsFunction_toJSON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1683     {"toPointer", &Pointer_callAsFunction_toPointer, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1684     {"valueOf", &CYValue_callAsFunction_valueOf, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1685     {NULL, NULL, 0}
1686 };
1687
1688 static JSStaticValue Pointer_staticValues[2] = {
1689     {"type", &Pointer_getProperty_type, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1690     {NULL, NULL, NULL, 0}
1691 };
1692
1693 static JSStaticFunction Struct_staticFunctions[2] = {
1694     {"$cya", &Struct_callAsFunction_$cya, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1695     {NULL, NULL, 0}
1696 };
1697
1698 static JSStaticFunction Functor_staticFunctions[5] = {
1699     {"toCYON", &CYValue_callAsFunction_toCYON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1700     {"toJSON", &CYValue_callAsFunction_toJSON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1701     {"toPointer", &Functor_callAsFunction_toPointer, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1702     {"valueOf", &CYValue_callAsFunction_valueOf, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1703     {NULL, NULL, 0}
1704 };
1705
1706 namespace cy {
1707     JSStaticFunction const * const Functor::StaticFunctions = Functor_staticFunctions;
1708 }
1709
1710 static JSStaticValue Functor_staticValues[2] = {
1711     {"type", &Functor_getProperty_type, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1712     {NULL, NULL, NULL, 0}
1713 };
1714
1715 namespace cy {
1716     JSStaticValue const * const Functor::StaticValues = Functor_staticValues;
1717 }
1718
1719 static JSStaticValue Type_staticValues[4] = {
1720     {"alignment", &Type_getProperty_alignment, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1721     {"name", &Type_getProperty_name, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1722     {"size", &Type_getProperty_size, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1723     {NULL, NULL, NULL, 0}
1724 };
1725
1726 static JSStaticFunction Type_staticFunctions[14] = {
1727     {"arrayOf", &Type_callAsFunction_arrayOf, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1728     {"blockWith", &Type_callAsFunction_blockWith, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1729     {"constant", &Type_callAsFunction_constant, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1730     {"functionWith", &Type_callAsFunction_functionWith, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1731     {"long", &Type_callAsFunction_long, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1732     {"pointerTo", &Type_callAsFunction_pointerTo, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1733     {"short", &Type_callAsFunction_short, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1734     {"signed", &Type_callAsFunction_signed, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1735     {"withName", &Type_callAsFunction_withName, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1736     {"toCYON", &Type_callAsFunction_toCYON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1737     {"toJSON", &Type_callAsFunction_toJSON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1738     {"toString", &Type_callAsFunction_toString, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1739     {"unsigned", &Type_callAsFunction_unsigned, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1740     {NULL, NULL, 0}
1741 };
1742
1743 static JSObjectRef (*JSObjectMakeArray$)(JSContextRef, size_t, const JSValueRef[], JSValueRef *);
1744
1745 _visible void CYSetArgs(int argc, const char *argv[]) {
1746     JSContextRef context(CYGetJSContext());
1747     JSValueRef args[argc];
1748     for (int i(0); i != argc; ++i)
1749         args[i] = CYCastJSValue(context, argv[i]);
1750
1751     JSObjectRef array;
1752     if (JSObjectMakeArray$ != NULL)
1753         array = _jsccall(*JSObjectMakeArray$, context, argc, args);
1754     else {
1755         JSObjectRef Array(CYGetCachedObject(context, CYJSString("Array")));
1756         JSValueRef value(CYCallAsFunction(context, Array, NULL, argc, args));
1757         array = CYCastJSObject(context, value);
1758     }
1759
1760     JSObjectRef System(CYGetCachedObject(context, CYJSString("System")));
1761     CYSetProperty(context, System, CYJSString("args"), array);
1762 }
1763
1764 JSObjectRef CYGetGlobalObject(JSContextRef context) {
1765     return JSContextGetGlobalObject(context);
1766 }
1767
1768 // XXX: this is neither exceptin safe nor even terribly sane
1769 class ExecutionHandle {
1770   private:
1771     JSContextRef context_;
1772     std::vector<void *> handles_;
1773
1774   public:
1775     ExecutionHandle(JSContextRef context) :
1776         context_(context)
1777     {
1778         handles_.resize(GetHooks().size());
1779         for (size_t i(0); i != GetHooks().size(); ++i) {
1780             CYHook *hook(GetHooks()[i]);
1781             if (hook->ExecuteStart != NULL)
1782                 handles_[i] = (*hook->ExecuteStart)(context_);
1783             else
1784                 handles_[i] = NULL;
1785         }
1786     }
1787
1788     ~ExecutionHandle() {
1789         for (size_t i(GetHooks().size()); i != 0; --i) {
1790             CYHook *hook(GetHooks()[i-1]);
1791             if (hook->ExecuteEnd != NULL)
1792                 (*hook->ExecuteEnd)(context_, handles_[i-1]);
1793         }
1794     }
1795 };
1796
1797 static volatile bool cancel_;
1798
1799 static bool CYShouldTerminate(JSContextRef context, void *arg) {
1800     return cancel_;
1801 }
1802
1803 _visible const char *CYExecute(JSContextRef context, CYPool &pool, CYUTF8String code) {
1804     ExecutionHandle handle(context);
1805
1806     cancel_ = false;
1807     if (&JSContextGroupSetExecutionTimeLimit != NULL)
1808         JSContextGroupSetExecutionTimeLimit(JSContextGetGroup(context), 0.5, &CYShouldTerminate, NULL);
1809
1810     try {
1811         JSValueRef result(_jsccall(JSEvaluateScript, context, CYJSString(code), NULL, NULL, 0));
1812         if (JSValueIsUndefined(context, result))
1813             return NULL;
1814
1815         std::set<void *> objects;
1816         const char *json(_jsccall(CYPoolCCYON, pool, context, result, objects));
1817         CYSetProperty(context, CYGetGlobalObject(context), Result_, result);
1818
1819         return json;
1820     } catch (const CYException &error) {
1821         return pool.strcat("throw ", error.PoolCString(pool), NULL);
1822     }
1823 }
1824
1825 _visible void CYCancel() {
1826     cancel_ = true;
1827 }
1828
1829 static bool initialized_ = false;
1830
1831 void CYInitializeDynamic() {
1832     if (!initialized_)
1833         initialized_ = true;
1834     else return;
1835
1836     JSObjectMakeArray$ = reinterpret_cast<JSObjectRef (*)(JSContextRef, size_t, const JSValueRef[], JSValueRef *)>(dlsym(RTLD_DEFAULT, "JSObjectMakeArray"));
1837     JSSynchronousGarbageCollectForDebugging$ = reinterpret_cast<void (*)(JSContextRef)>(dlsym(RTLD_DEFAULT, "JSSynchronousGarbageCollectForDebugging"));
1838
1839     JSClassDefinition definition;
1840
1841     definition = kJSClassDefinitionEmpty;
1842     definition.className = "All";
1843     definition.hasProperty = &All_hasProperty;
1844     definition.getProperty = &All_getProperty;
1845     definition.getPropertyNames = &All_getPropertyNames;
1846     All_ = JSClassCreate(&definition);
1847
1848     definition = kJSClassDefinitionEmpty;
1849     definition.className = "Context";
1850     definition.finalize = &CYFinalize;
1851     Context_ = JSClassCreate(&definition);
1852
1853     definition = kJSClassDefinitionEmpty;
1854     definition.className = "CString";
1855     definition.staticFunctions = CString_staticFunctions;
1856     definition.staticValues = CString_staticValues;
1857     definition.getProperty = &CString_getProperty;
1858     definition.setProperty = &CString_setProperty;
1859     definition.finalize = &CYFinalize;
1860     CString_ = JSClassCreate(&definition);
1861
1862     definition = kJSClassDefinitionEmpty;
1863     definition.className = "Functor";
1864     definition.staticFunctions = cy::Functor::StaticFunctions;
1865     definition.staticValues = Functor_staticValues;
1866     definition.callAsFunction = &Functor_callAsFunction;
1867     definition.finalize = &CYFinalize;
1868     Functor_ = JSClassCreate(&definition);
1869
1870     definition = kJSClassDefinitionEmpty;
1871     definition.className = "Pointer";
1872     definition.staticFunctions = Pointer_staticFunctions;
1873     definition.staticValues = Pointer_staticValues;
1874     definition.getProperty = &Pointer_getProperty;
1875     definition.setProperty = &Pointer_setProperty;
1876     definition.finalize = &CYFinalize;
1877     Pointer_ = JSClassCreate(&definition);
1878
1879     definition = kJSClassDefinitionEmpty;
1880     definition.className = "Struct";
1881     definition.staticFunctions = Struct_staticFunctions;
1882     definition.getProperty = &Struct_getProperty;
1883     definition.setProperty = &Struct_setProperty;
1884     definition.getPropertyNames = &Struct_getPropertyNames;
1885     definition.finalize = &CYFinalize;
1886     Struct_ = JSClassCreate(&definition);
1887
1888     definition = kJSClassDefinitionEmpty;
1889     definition.className = "Type";
1890     definition.staticValues = Type_staticValues;
1891     definition.staticFunctions = Type_staticFunctions;
1892     definition.callAsFunction = &Type_callAsFunction;
1893     definition.callAsConstructor = &Type_callAsConstructor;
1894     definition.finalize = &CYFinalize;
1895     Type_privateData::Class_ = JSClassCreate(&definition);
1896
1897     definition = kJSClassDefinitionEmpty;
1898     definition.className = "Global";
1899     //definition.getProperty = &Global_getProperty;
1900     Global_ = JSClassCreate(&definition);
1901
1902     Array_s = JSStringCreateWithUTF8CString("Array");
1903     cy_s = JSStringCreateWithUTF8CString("$cy");
1904     cyi_s = JSStringCreateWithUTF8CString("$cyi");
1905     length_s = JSStringCreateWithUTF8CString("length");
1906     message_s = JSStringCreateWithUTF8CString("message");
1907     name_s = JSStringCreateWithUTF8CString("name");
1908     pop_s = JSStringCreateWithUTF8CString("pop");
1909     prototype_s = JSStringCreateWithUTF8CString("prototype");
1910     push_s = JSStringCreateWithUTF8CString("push");
1911     splice_s = JSStringCreateWithUTF8CString("splice");
1912     toCYON_s = JSStringCreateWithUTF8CString("toCYON");
1913     toJSON_s = JSStringCreateWithUTF8CString("toJSON");
1914     toPointer_s = JSStringCreateWithUTF8CString("toPointer");
1915     toString_s = JSStringCreateWithUTF8CString("toString");
1916     weak_s = JSStringCreateWithUTF8CString("weak");
1917
1918     Result_ = JSStringCreateWithUTF8CString("_");
1919
1920     for (CYHook *hook : GetHooks())
1921         if (hook->Initialize != NULL)
1922             (*hook->Initialize)();
1923 }
1924
1925 void CYThrow(JSContextRef context, JSValueRef value) {
1926     if (value != NULL)
1927         throw CYJSError(context, value);
1928 }
1929
1930 const char *CYJSError::PoolCString(CYPool &pool) const {
1931     std::set<void *> objects;
1932     // XXX: this used to be CYPoolCString
1933     return CYPoolCCYON(pool, context_, value_, objects);
1934 }
1935
1936 JSValueRef CYJSError::CastJSValue(JSContextRef context, const char *name) const {
1937     // XXX: what if the context is different? or the name? I dunno. ("epic" :/)
1938     return value_;
1939 }
1940
1941 JSValueRef CYCastJSError(JSContextRef context, const char *name, const char *message) {
1942     JSObjectRef Error(CYGetCachedObject(context, CYJSString(name)));
1943     JSValueRef arguments[1] = {CYCastJSValue(context, message)};
1944     return _jsccall(JSObjectCallAsConstructor, context, Error, 1, arguments);
1945 }
1946
1947 JSValueRef CYPoolError::CastJSValue(JSContextRef context, const char *name) const {
1948     return CYCastJSError(context, name, message_);
1949 }
1950
1951 CYJSError::CYJSError(JSContextRef context, const char *format, ...) {
1952     _assert(context != NULL);
1953
1954     CYPool pool;
1955
1956     va_list args;
1957     va_start(args, format);
1958     // XXX: there might be a beter way to think about this
1959     const char *message(pool.vsprintf(64, format, args));
1960     va_end(args);
1961
1962     value_ = CYCastJSError(context, "Error", message);
1963 }
1964
1965 JSGlobalContextRef CYGetJSContext(JSContextRef context) {
1966     return reinterpret_cast<Context *>(JSObjectGetPrivate(CYCastJSObject(context, CYGetProperty(context, CYGetGlobalObject(context), cy_s))))->context_;
1967 }
1968
1969 struct CYFile {
1970     void *data_;
1971     size_t size_;
1972
1973     CYFile(void *data, size_t size) :
1974         data_(data),
1975         size_(size)
1976     {
1977     }
1978 };
1979
1980 static void CYFileExit(void *data) {
1981     CYFile *file(reinterpret_cast<CYFile *>(data));
1982     _syscall(munmap(file->data_, file->size_));
1983 }
1984
1985 static void *CYPoolFile(CYPool &pool, const char *path, size_t *psize) {
1986     int fd(_syscall_(open(path, O_RDONLY), 1, ENOENT));
1987     if (fd == -1)
1988         return NULL;
1989
1990     struct stat stat;
1991     _syscall(fstat(fd, &stat));
1992     size_t size(stat.st_size);
1993
1994     *psize = size;
1995
1996     void *base;
1997     _syscall(base = mmap(NULL, size, PROT_READ, MAP_SHARED, fd, 0));
1998
1999     CYFile *file(new (pool) CYFile(base, size));
2000     pool.atexit(&CYFileExit, file);
2001
2002     _syscall(close(fd));
2003     return base;
2004 }
2005
2006 static CYUTF8String CYPoolFileUTF8String(CYPool &pool, const char *path) {
2007     CYUTF8String data;
2008     data.data = reinterpret_cast<char *>(CYPoolFile(pool, path, &data.size));
2009     return data;
2010 }
2011
2012 static const char *CYPoolLibraryPath(CYPool &pool) {
2013     Dl_info addr;
2014     _assert(dladdr(reinterpret_cast<void *>(&CYPoolLibraryPath), &addr) != 0);
2015     char *lib(pool.strdup(addr.dli_fname));
2016
2017     char *slash(strrchr(lib, '/'));
2018     _assert(slash != NULL);
2019     *slash = '\0';
2020
2021     return lib;
2022 }
2023
2024 static JSValueRef require(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
2025     _assert(count == 1);
2026     CYPool pool;
2027
2028     const char *lib(CYPoolLibraryPath(pool));
2029
2030     CYJSString property("exports");
2031     JSObjectRef module;
2032
2033     const char *name(CYPoolCString(pool, context, arguments[0]));
2034     const char *path(pool.strcat(lib, "/cycript0.9/", name, ".cy", NULL));
2035
2036     CYJSString key(path);
2037     JSObjectRef modules(CYGetCachedObject(context, CYJSString("modules")));
2038     JSValueRef cache(CYGetProperty(context, modules, key));
2039
2040     if (!JSValueIsUndefined(context, cache))
2041         module = CYCastJSObject(context, cache);
2042     else {
2043         CYUTF8String code(CYPoolFileUTF8String(pool, path));
2044
2045         if (code.data == NULL) {
2046             if (strchr(name, '/') == NULL && (
2047 #ifdef __APPLE__
2048                 dlopen(pool.strcat("/System/Library/Frameworks/", name, ".framework/", name, NULL), RTLD_LAZY | RTLD_GLOBAL) != NULL ||
2049                 dlopen(pool.strcat("/System/Library/PrivateFrameworks/", name, ".framework/", name, NULL), RTLD_LAZY | RTLD_GLOBAL) != NULL ||
2050 #endif
2051             false))
2052                 return CYJSUndefined(NULL);
2053
2054             CYThrow("Can't find module: %s", name);
2055         }
2056
2057         module = JSObjectMake(context, NULL, NULL);
2058         CYSetProperty(context, modules, key, module);
2059
2060         JSObjectRef exports(JSObjectMake(context, NULL, NULL));
2061         CYSetProperty(context, module, property, exports);
2062
2063         std::stringstream wrap;
2064         wrap << "(function (exports, require, module) { " << code << "\n});";
2065         code = CYPoolCode(pool, *wrap.rdbuf());
2066
2067         JSValueRef value(_jsccall(JSEvaluateScript, context, CYJSString(code), NULL, NULL, 0));
2068         JSObjectRef function(CYCastJSObject(context, value));
2069
2070         JSValueRef arguments[3] = { exports, JSObjectMakeFunctionWithCallback(context, CYJSString("require"), &require), module };
2071         CYCallAsFunction(context, function, NULL, 3, arguments);
2072     }
2073
2074     return CYGetProperty(context, module, property);
2075 } CYCatch(NULL) }
2076
2077 static bool CYRunScript(JSGlobalContextRef context, const char *path) {
2078     CYPool pool;
2079     CYUTF8String code(CYPoolFileUTF8String(pool, path));
2080     if (code.data == NULL)
2081         return false;
2082
2083     CYStream stream(code.data, code.data + code.size);
2084     code = CYPoolCode(pool, stream);
2085     _jsccall(JSEvaluateScript, context, CYJSString(code), NULL, NULL, 0);
2086     return true;
2087 }
2088
2089 extern "C" void CYDestroyWeak(JSWeakObjectMapRef weak, void *data) {
2090 }
2091
2092 extern "C" void CYSetupContext(JSGlobalContextRef context) {
2093     CYInitializeDynamic();
2094
2095     JSObjectRef global(CYGetGlobalObject(context));
2096
2097     JSObjectRef cy(JSObjectMake(context, Context_, new Context(context)));
2098     CYSetProperty(context, global, cy_s, cy, kJSPropertyAttributeDontEnum);
2099
2100 /* Cache Globals {{{ */
2101     JSObjectRef Array(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Array"))));
2102     CYSetProperty(context, cy, CYJSString("Array"), Array);
2103
2104     JSObjectRef Array_prototype(CYCastJSObject(context, CYGetProperty(context, Array, prototype_s)));
2105     CYSetProperty(context, cy, CYJSString("Array_prototype"), Array_prototype);
2106
2107     JSObjectRef Boolean(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Boolean"))));
2108     CYSetProperty(context, cy, CYJSString("Boolean"), Boolean);
2109
2110     JSObjectRef Boolean_prototype(CYCastJSObject(context, CYGetProperty(context, Boolean, prototype_s)));
2111     CYSetProperty(context, cy, CYJSString("Boolean_prototype"), Boolean_prototype);
2112
2113     JSObjectRef Error(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Error"))));
2114     CYSetProperty(context, cy, CYJSString("Error"), Error);
2115
2116     JSObjectRef Function(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Function"))));
2117     CYSetProperty(context, cy, CYJSString("Function"), Function);
2118
2119     JSObjectRef Function_prototype(CYCastJSObject(context, CYGetProperty(context, Function, prototype_s)));
2120     CYSetProperty(context, cy, CYJSString("Function_prototype"), Function_prototype);
2121
2122     JSObjectRef Number(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Number"))));
2123     CYSetProperty(context, cy, CYJSString("Number"), Number);
2124
2125     JSObjectRef Number_prototype(CYCastJSObject(context, CYGetProperty(context, Number, prototype_s)));
2126     CYSetProperty(context, cy, CYJSString("Number_prototype"), Number_prototype);
2127
2128     JSObjectRef Object(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Object"))));
2129     CYSetProperty(context, cy, CYJSString("Object"), Object);
2130
2131     JSObjectRef Object_prototype(CYCastJSObject(context, CYGetProperty(context, Object, prototype_s)));
2132     CYSetProperty(context, cy, CYJSString("Object_prototype"), Object_prototype);
2133
2134     JSObjectRef String(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("String"))));
2135     CYSetProperty(context, cy, CYJSString("String"), String);
2136
2137     JSObjectRef String_prototype(CYCastJSObject(context, CYGetProperty(context, String, prototype_s)));
2138     CYSetProperty(context, cy, CYJSString("String_prototype"), String_prototype);
2139
2140     JSObjectRef SyntaxError(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("SyntaxError"))));
2141     CYSetProperty(context, cy, CYJSString("SyntaxError"), SyntaxError);
2142 /* }}} */
2143
2144     CYSetProperty(context, Array_prototype, toCYON_s, &Array_callAsFunction_toCYON, kJSPropertyAttributeDontEnum);
2145     CYSetProperty(context, String_prototype, toCYON_s, &String_callAsFunction_toCYON, kJSPropertyAttributeDontEnum);
2146
2147     JSObjectRef cycript(JSObjectMake(context, NULL, NULL));
2148     CYSetProperty(context, global, CYJSString("Cycript"), cycript);
2149     CYSetProperty(context, cycript, CYJSString("compile"), &Cycript_compile_callAsFunction);
2150     CYSetProperty(context, cycript, CYJSString("gc"), &Cycript_gc_callAsFunction);
2151
2152     JSObjectRef CString(JSObjectMakeConstructor(context, CString_, &CString_new));
2153     CYSetPrototype(context, CYCastJSObject(context, CYGetProperty(context, CString, prototype_s)), String_prototype);
2154     CYSetProperty(context, cycript, CYJSString("CString"), CString);
2155
2156     JSObjectRef Functor(JSObjectMakeConstructor(context, Functor_, &Functor_new));
2157     CYSetPrototype(context, CYCastJSObject(context, CYGetProperty(context, Functor, prototype_s)), Function_prototype);
2158     CYSetProperty(context, cycript, CYJSString("Functor"), Functor);
2159
2160     CYSetProperty(context, cycript, CYJSString("Pointer"), JSObjectMakeConstructor(context, Pointer_, &Pointer_new));
2161     CYSetProperty(context, cycript, CYJSString("Type"), JSObjectMakeConstructor(context, Type_privateData::Class_, &Type_new));
2162
2163     JSObjectRef modules(JSObjectMake(context, NULL, NULL));
2164     CYSetProperty(context, cy, CYJSString("modules"), modules);
2165
2166     JSObjectRef all(JSObjectMake(context, All_, NULL));
2167     CYSetProperty(context, cycript, CYJSString("all"), all);
2168
2169     JSObjectRef alls(_jsccall(JSObjectCallAsConstructor, context, Array, 0, NULL));
2170     CYSetProperty(context, cycript, CYJSString("alls"), alls);
2171
2172     if (true) {
2173         JSObjectRef last(NULL), curr(global);
2174
2175         goto next; for (JSValueRef next;;) {
2176             if (JSValueIsNull(context, next))
2177                 break;
2178             last = curr;
2179             curr = CYCastJSObject(context, next);
2180           next:
2181             next = JSObjectGetPrototype(context, curr);
2182         }
2183
2184         CYSetPrototype(context, last, all);
2185     }
2186
2187     JSObjectRef System(JSObjectMake(context, NULL, NULL));
2188     CYSetProperty(context, cy, CYJSString("System"), System);
2189
2190     CYSetProperty(context, all, CYJSString("require"), &require, kJSPropertyAttributeDontEnum);
2191
2192     CYSetProperty(context, global, CYJSString("system"), System);
2193     CYSetProperty(context, System, CYJSString("args"), CYJSNull(context));
2194     //CYSetProperty(context, System, CYJSString("global"), global);
2195     CYSetProperty(context, System, CYJSString("print"), &System_print);
2196
2197 #ifdef __APPLE__
2198     if (&JSWeakObjectMapCreate != NULL) {
2199         JSWeakObjectMapRef weak(JSWeakObjectMapCreate(context, NULL, &CYDestroyWeak));
2200         CYSetProperty(context, cy, weak_s, CYCastJSValue(context, reinterpret_cast<uintptr_t>(weak)));
2201     }
2202 #endif
2203
2204     if (CYBridgeEntry *entry = CYBridgeHash("1dlerror", 8))
2205         entry->cache_ = new cy::Functor(entry->value_, reinterpret_cast<void (*)()>(&dlerror));
2206
2207     CYRunScript(context, "libcycript.cy");
2208
2209     for (CYHook *hook : GetHooks())
2210         if (hook->SetupContext != NULL)
2211             (*hook->SetupContext)(context);
2212
2213     CYArrayPush(context, alls, cycript);
2214 }
2215
2216 static JSGlobalContextRef context_;
2217
2218 _visible JSGlobalContextRef CYGetJSContext() {
2219     CYInitializeDynamic();
2220
2221     if (context_ == NULL) {
2222         context_ = JSGlobalContextCreate(Global_);
2223         CYSetupContext(context_);
2224     }
2225
2226     return context_;
2227 }
2228
2229 _visible void CYDestroyContext() {
2230     if (context_ == NULL)
2231         return;
2232     JSGlobalContextRelease(context_);
2233     context_ = NULL;
2234 }