Execute.cpp

   1 /* Cycript - The Truly Universal Scripting Language
   2  * Copyright (C) 2009-2016  Jay Freeman (saurik)
   3 */
   4
   5 /* GNU Affero General Public License, Version 3 {{{ */
   6 /*
   7  * This program is free software: you can redistribute it and/or modify
   8  * it under the terms of the GNU Affero General Public License as published by
   9  * the Free Software Foundation, either version 3 of the License, or
  10  * (at your option) any later version.
  11
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU Affero General Public License for more details.
  16
  17  * You should have received a copy of the GNU Affero General Public License
  18  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19 **/
  20 /* }}} */
  21
  22 #include "cycript.hpp"
  23
  24 #include <iostream>
  25 #include <set>
  26 #include <map>
  27 #include <iomanip>
  28 #include <sstream>
  29 #include <cmath>
  30
  31 #include <dlfcn.h>
  32 #include <dirent.h>
  33 #include <fcntl.h>
  34 #include <unistd.h>
  35
  36 #include <sys/mman.h>
  37 #include <sys/stat.h>
  38
  39 #include <sqlite3.h>
  40
  41 #include "sig/parse.hpp"
  42 #include "sig/ffi_type.hpp"
  43
  44 #include "Bridge.hpp"
  45 #include "Code.hpp"
  46 #include "Decode.hpp"
  47 #include "Error.hpp"
  48 #include "Execute.hpp"
  49 #include "Internal.hpp"
  50 #include "JavaScript.hpp"
  51 #include "Pooling.hpp"
  52 #include "String.hpp"
  53
  54 const char *sqlite3_column_string(sqlite3_stmt *stmt, int n) {
  55     return reinterpret_cast<const char *>(sqlite3_column_text(stmt, n));
  56 }
  57
  58 char *sqlite3_column_pooled(CYPool &pool, sqlite3_stmt *stmt, int n) {
  59     if (const char *value = sqlite3_column_string(stmt, n))
  60         return pool.strdup(value);
  61     else return NULL;
  62 }
  63
  64 static std::vector<CYHook *> &GetHooks() {
  65     static std::vector<CYHook *> hooks;
  66     return hooks;
  67 }
  68
  69 CYRegisterHook::CYRegisterHook(CYHook *hook) {
  70     GetHooks().push_back(hook);
  71 }
  72
  73 /* JavaScript Properties {{{ */
  74 bool CYHasProperty(JSContextRef context, JSObjectRef object, JSStringRef name) {
  75     return JSObjectHasProperty(context, object, name);
  76 }
  77
  78 JSValueRef CYGetProperty(JSContextRef context, JSObjectRef object, size_t index) {
  79     return _jsccall(JSObjectGetPropertyAtIndex, context, object, index);
  80 }
  81
  82 JSValueRef CYGetProperty(JSContextRef context, JSObjectRef object, JSStringRef name) {
  83     return _jsccall(JSObjectGetProperty, context, object, name);
  84 }
  85
  86 void CYSetProperty(JSContextRef context, JSObjectRef object, size_t index, JSValueRef value) {
  87     _jsccall(JSObjectSetPropertyAtIndex, context, object, index, value);
  88 }
  89
  90 void CYSetProperty(JSContextRef context, JSObjectRef object, JSStringRef name, JSValueRef value, JSPropertyAttributes attributes) {
  91     _jsccall(JSObjectSetProperty, context, object, name, value, attributes);
  92 }
  93
  94 void CYSetProperty(JSContextRef context, JSObjectRef object, JSStringRef name, JSValueRef (*callback)(JSContextRef, JSObjectRef, JSObjectRef, size_t, const JSValueRef[], JSValueRef *), JSPropertyAttributes attributes) {
  95     CYSetProperty(context, object, name, JSObjectMakeFunctionWithCallback(context, name, callback), attributes);
  96 }
  97
  98 JSObjectRef CYGetPrototype(JSContextRef context, JSObjectRef object) {
  99     return CYCastJSObject(context, JSObjectGetPrototype(context, object));
 100 }
 101
 102 void CYSetPrototype(JSContextRef context, JSObjectRef object, JSValueRef value) {
 103     _assert(!JSValueIsUndefined(context, value));
 104     JSObjectSetPrototype(context, object, value);
 105     _assert(CYIsStrictEqual(context, JSObjectGetPrototype(context, object), value));
 106 }
 107 /* }}} */
 108 /* JavaScript Strings {{{ */
 109 JSStringRef CYCopyJSString(const char *value) {
 110     return value == NULL ? NULL : JSStringCreateWithUTF8CString(value);
 111 }
 112
 113 JSStringRef CYCopyJSString(JSStringRef value) {
 114     return value == NULL ? NULL : JSStringRetain(value);
 115 }
 116
 117 JSStringRef CYCopyJSString(CYUTF8String value) {
 118     if (memchr(value.data, '\0', value.size) != NULL) {
 119         CYPool pool;
 120         return CYCopyJSString(CYPoolUTF16String(pool, value));
 121     } else if (value.data[value.size] != '\0') {
 122         CYPool pool;
 123         return CYCopyJSString(pool.strmemdup(value.data, value.size));
 124     } else {
 125         return CYCopyJSString(value.data);
 126     }
 127 }
 128
 129 JSStringRef CYCopyJSString(const std::string &value) {
 130     return CYCopyJSString(CYUTF8String(value.c_str(), value.size()));
 131 }
 132
 133 JSStringRef CYCopyJSString(CYUTF16String value) {
 134     return JSStringCreateWithCharacters(value.data, value.size);
 135 }
 136
 137 JSStringRef CYCopyJSString(JSContextRef context, JSValueRef value) {
 138     if (JSValueIsNull(context, value))
 139         return NULL;
 140     return _jsccall(JSValueToStringCopy, context, value);
 141 }
 142
 143 CYUTF16String CYCastUTF16String(JSStringRef value) {
 144     return CYUTF16String(JSStringGetCharactersPtr(value), JSStringGetLength(value));
 145 }
 146
 147 const char *CYPoolCString(CYPool &pool, CYUTF8String utf8) {
 148     return pool.strndup(utf8.data, utf8.size);
 149 }
 150
 151 CYUTF8String CYPoolUTF8String(CYPool &pool, CYUTF8String utf8) {
 152     return {pool.strndup(utf8.data, utf8.size), utf8.size};
 153 }
 154
 155 _visible CYUTF8String CYPoolUTF8String(CYPool &pool, const std::string &value) {
 156     return {pool.strndup(value.data(), value.size()), value.size()};
 157 }
 158
 159 CYUTF8String CYPoolUTF8String(CYPool &pool, JSContextRef context, JSStringRef value) {
 160     return CYPoolUTF8String(pool, CYCastUTF16String(value));
 161 }
 162
 163 const char *CYPoolCString(CYPool &pool, JSContextRef context, JSStringRef value) {
 164     CYUTF8String utf8(CYPoolUTF8String(pool, context, value));
 165     _assert(memchr(utf8.data, '\0', utf8.size) == NULL);
 166     return utf8.data;
 167 }
 168
 169 const char *CYPoolCString(CYPool &pool, JSContextRef context, JSValueRef value) {
 170     return JSValueIsNull(context, value) ? NULL : CYPoolCString(pool, context, CYJSString(context, value));
 171 }
 172 /* }}} */
 173 /* Index Offsets {{{ */
 174 size_t CYGetIndex(CYPool &pool, JSContextRef context, JSStringRef value) {
 175     return CYGetIndex(CYPoolUTF8String(pool, context, value));
 176 }
 177 /* }}} */
 178
 179 static JSObjectRef (*JSObjectMakeArray$)(JSContextRef, size_t, const JSValueRef[], JSValueRef *);
 180
 181 JSObjectRef CYObjectMakeArray(JSContextRef context, size_t length, const JSValueRef values[]) {
 182     if (JSObjectMakeArray$ != NULL)
 183         return _jsccall(*JSObjectMakeArray$, context, length, values);
 184     else {
 185         JSObjectRef Array(CYGetCachedObject(context, CYJSString("Array")));
 186         JSValueRef value(CYCallAsFunction(context, Array, NULL, length, values));
 187         return CYCastJSObject(context, value);
 188     }
 189 }
 190
 191 static JSClassRef All_;
 192 JSClassRef cy::Functor::Class_;
 193 static JSClassRef Global_;
 194
 195 JSStringRef Array_s;
 196 JSStringRef constructor_s;
 197 JSStringRef cy_s;
 198 JSStringRef cyi_s;
 199 JSStringRef cyt_s;
 200 JSStringRef length_s;
 201 JSStringRef message_s;
 202 JSStringRef name_s;
 203 JSStringRef pop_s;
 204 JSStringRef prototype_s;
 205 JSStringRef push_s;
 206 JSStringRef splice_s;
 207 JSStringRef toCYON_s;
 208 JSStringRef toJSON_s;
 209 JSStringRef toPointer_s;
 210 JSStringRef toString_s;
 211 JSStringRef weak_s;
 212
 213 static sqlite3 *database_;
 214
 215 static JSStringRef Result_;
 216
 217 void CYFinalize(JSObjectRef object) {
 218     CYData *internal(reinterpret_cast<CYData *>(JSObjectGetPrivate(object)));
 219     _assert(internal->count_ != _not(unsigned));
 220     if (--internal->count_ == 0)
 221         delete internal;
 222 }
 223
 224 sig::Type *Structor_(CYPool &pool, sig::Aggregate *aggregate) {
 225     //_assert(false);
 226     return aggregate;
 227 }
 228
 229 struct Context :
 230     CYRoot
 231 {
 232     JSGlobalContextRef context_;
 233
 234     Context(JSGlobalContextRef context) :
 235         context_(context)
 236     {
 237     }
 238 };
 239
 240 struct CArray :
 241     CYRoot
 242 {
 243     void *value_;
 244     CYProtect owner_;
 245     Type_privateData *type_;
 246     size_t length_;
 247
 248     CArray(void *value, size_t length, const sig::Type &type, ffi_type *ffi, JSContextRef context, JSObjectRef owner) :
 249         value_(value),
 250         owner_(context, owner),
 251         type_(new(*pool_) Type_privateData(type, ffi)),
 252         length_(length)
 253     {
 254     }
 255 };
 256
 257 struct CString :
 258     CYRoot
 259 {
 260     char *value_;
 261     CYProtect owner_;
 262
 263     CString(char *value, JSContextRef context, JSObjectRef owner) :
 264         value_(value),
 265         owner_(context, owner)
 266     {
 267     }
 268 };
 269
 270 struct Pointer :
 271     CYRoot
 272 {
 273     void *value_;
 274     CYProtect owner_;
 275     Type_privateData *type_;
 276
 277     Pointer(void *value, const sig::Type &type, JSContextRef context, JSObjectRef owner) :
 278         value_(value),
 279         owner_(context, owner),
 280         type_(new(*pool_) Type_privateData(type))
 281     {
 282     }
 283
 284     Pointer(void *value, const char *encoding, JSContextRef context, JSObjectRef owner) :
 285         value_(value),
 286         owner_(context, owner),
 287         type_(new(*pool_) Type_privateData(encoding))
 288     {
 289     }
 290 };
 291
 292 struct Struct_privateData :
 293     CYRoot
 294 {
 295     void *value_;
 296     CYProtect owner_;
 297     Type_privateData *type_;
 298
 299     Struct_privateData(void *value, const sig::Type &type, ffi_type *ffi, JSContextRef context, JSObjectRef owner) :
 300         value_(value),
 301         owner_(context, owner),
 302         type_(new(*pool_) Type_privateData(type, ffi))
 303     {
 304         if (owner == NULL) {
 305             size_t size(ffi->size);
 306             void *copy(pool_->malloc<void>(size, ffi->alignment));
 307             memcpy(copy, value_, size);
 308             value_ = copy;
 309         }
 310     }
 311 };
 312
 313 static void *CYCastSymbol(const char *name) {
 314     for (CYHook *hook : GetHooks())
 315         if (hook->CastSymbol != NULL)
 316             if (void *value = (*hook->CastSymbol)(name))
 317                 return value;
 318     return dlsym(RTLD_DEFAULT, name);
 319 }
 320
 321 JSValueRef CYCastJSValue(JSContextRef context, bool value) {
 322     return JSValueMakeBoolean(context, value);
 323 }
 324
 325 JSValueRef CYCastJSValue(JSContextRef context, double value) {
 326     return JSValueMakeNumber(context, value);
 327 }
 328
 329 #define CYCastJSValue_(Type_) \
 330     JSValueRef CYCastJSValue(JSContextRef context, Type_ value) { \
 331         _assert(static_cast<Type_>(static_cast<double>(value)) == value); \
 332         return JSValueMakeNumber(context, static_cast<double>(value)); \
 333     }
 334
 335 CYCastJSValue_(signed short int)
 336 CYCastJSValue_(unsigned short int)
 337 CYCastJSValue_(signed int)
 338 CYCastJSValue_(unsigned int)
 339 CYCastJSValue_(signed long int)
 340 CYCastJSValue_(unsigned long int)
 341 CYCastJSValue_(signed long long int)
 342 CYCastJSValue_(unsigned long long int)
 343
 344 #ifdef __SIZEOF_INT128__
 345 CYCastJSValue_(signed __int128)
 346 CYCastJSValue_(unsigned __int128)
 347 #endif
 348
 349 JSValueRef CYJSUndefined(JSContextRef context) {
 350     return JSValueMakeUndefined(context);
 351 }
 352
 353 double CYCastDouble(JSContextRef context, JSValueRef value) {
 354     return _jsccall(JSValueToNumber, context, value);
 355 }
 356
 357 bool CYCastBool(JSContextRef context, JSValueRef value) {
 358     return JSValueToBoolean(context, value);
 359 }
 360
 361 JSValueRef CYJSNull(JSContextRef context) {
 362     return JSValueMakeNull(context);
 363 }
 364
 365 JSValueRef CYCastJSValue(JSContextRef context, JSStringRef value) {
 366     return value == NULL ? CYJSNull(context) : JSValueMakeString(context, value);
 367 }
 368
 369 JSValueRef CYCastJSValue(JSContextRef context, const char *value) {
 370     return CYCastJSValue(context, CYJSString(value));
 371 }
 372
 373 JSObjectRef CYCastJSObject(JSContextRef context, JSValueRef value) {
 374     return _jsccall(JSValueToObject, context, value);
 375 }
 376
 377 JSValueRef CYCallAsFunction(JSContextRef context, JSObjectRef function, JSObjectRef _this, size_t count, const JSValueRef arguments[]) {
 378     return _jsccall(JSObjectCallAsFunction, context, function, _this, count, arguments);
 379 }
 380
 381 bool CYIsCallable(JSContextRef context, JSValueRef value) {
 382     return value != NULL && JSValueIsObject(context, value) && JSObjectIsFunction(context, (JSObjectRef) value);
 383 }
 384
 385 bool CYIsEqual(JSContextRef context, JSValueRef lhs, JSValueRef rhs) {
 386     return _jsccall(JSValueIsEqual, context, lhs, rhs);
 387 }
 388
 389 bool CYIsStrictEqual(JSContextRef context, JSValueRef lhs, JSValueRef rhs) {
 390     return JSValueIsStrictEqual(context, lhs, rhs);
 391 }
 392
 393 size_t CYArrayLength(JSContextRef context, JSObjectRef array) {
 394     return CYCastDouble(context, CYGetProperty(context, array, length_s));
 395 }
 396
 397 JSValueRef CYArrayGet(JSContextRef context, JSObjectRef array, size_t index) {
 398     return _jsccall(JSObjectGetPropertyAtIndex, context, array, index);
 399 }
 400
 401 void CYArrayPush(JSContextRef context, JSObjectRef array, size_t length, const JSValueRef arguments[]) {
 402     JSObjectRef Array(CYGetCachedObject(context, CYJSString("Array_prototype")));
 403     _jsccall(JSObjectCallAsFunction, context, CYCastJSObject(context, CYGetProperty(context, Array, push_s)), array, length, arguments);
 404 }
 405
 406 void CYArrayPush(JSContextRef context, JSObjectRef array, JSValueRef value) {
 407     return CYArrayPush(context, array, 1, &value);
 408 }
 409
 410 static JSValueRef System_print(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
 411     FILE *file(stdout);
 412
 413     if (count == 0)
 414         fputc('\n', file);
 415     else {
 416         CYPool pool;
 417         CYUTF8String string(CYPoolUTF8String(pool, context, CYJSString(context, arguments[0])));
 418         fwrite(string.data, string.size, 1, file);
 419     }
 420
 421     fflush(file);
 422     return CYJSUndefined(context);
 423 } CYCatch(NULL) }
 424
 425 static JSValueRef Global_print(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
 426     FILE *file(stdout);
 427     CYPool pool;
 428
 429     for (size_t i(0); i != count; ++i) {
 430         if (i != 0)
 431             fputc(' ', file);
 432         CYUTF8String string(CYPoolUTF8String(pool, context, CYJSString(context, arguments[i])));
 433         fwrite(string.data, string.size, 1, file);
 434     }
 435
 436     fputc('\n', file);
 437     fflush(file);
 438     return CYJSUndefined(context);
 439 } CYCatch(NULL) }
 440
 441 static void (*JSSynchronousGarbageCollectForDebugging$)(JSContextRef);
 442
 443 _visible void CYGarbageCollect(JSContextRef context) {
 444     (JSSynchronousGarbageCollectForDebugging$ ?: &JSGarbageCollect)(context);
 445 }
 446
 447 static JSValueRef Cycript_compile_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
 448     CYPool pool;
 449     CYUTF8String before(CYPoolUTF8String(pool, context, CYJSString(context, arguments[0])));
 450     CYUTF8String after(CYPoolCode(pool, before));
 451     return CYCastJSValue(context, CYJSString(after));
 452 } CYCatch_(NULL, "SyntaxError") }
 453
 454 static JSValueRef Cycript_gc_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
 455     CYGarbageCollect(context);
 456     return CYJSUndefined(context);
 457 } CYCatch(NULL) }
 458
 459 const char *CYPoolCCYON(CYPool &pool, JSContextRef context, JSValueRef value, std::set<void *> &objects, JSValueRef *exception) { CYTry {
 460     switch (JSType type = JSValueGetType(context, value)) {
 461         case kJSTypeUndefined:
 462             return "undefined";
 463         case kJSTypeNull:
 464             return "null";
 465         case kJSTypeBoolean:
 466             return CYCastBool(context, value) ? "true" : "false";
 467
 468         case kJSTypeNumber: {
 469             std::ostringstream str;
 470             CYNumerify(str, CYCastDouble(context, value));
 471             std::string value(str.str());
 472             return pool.strmemdup(value.c_str(), value.size());
 473         } break;
 474
 475         case kJSTypeString: {
 476             std::ostringstream str;
 477             CYUTF8String string(CYPoolUTF8String(pool, context, CYJSString(context, value)));
 478             CYStringify(str, string.data, string.size, CYStringifyModeCycript);
 479             std::string value(str.str());
 480             return pool.strmemdup(value.c_str(), value.size());
 481         } break;
 482
 483         case kJSTypeObject:
 484             return CYPoolCCYON(pool, context, (JSObjectRef) value, objects);
 485         default:
 486             throw CYJSError(context, "JSValueGetType() == 0x%x", type);
 487     }
 488 } CYCatch(NULL) }
 489
 490 const char *CYPoolCCYON(CYPool &pool, JSContextRef context, JSValueRef value, std::set<void *> &objects) {
 491     return _jsccall(CYPoolCCYON, pool, context, value, objects);
 492 }
 493
 494 const char *CYPoolCCYON(CYPool &pool, JSContextRef context, JSValueRef value, std::set<void *> *objects) {
 495     if (objects != NULL)
 496         return CYPoolCCYON(pool, context, value, *objects);
 497     else {
 498         std::set<void *> objects;
 499         return CYPoolCCYON(pool, context, value, objects);
 500     }
 501 }
 502
 503 const char *CYPoolCCYON(CYPool &pool, JSContextRef context, JSObjectRef object, std::set<void *> &objects) {
 504     JSValueRef toCYON(CYGetProperty(context, object, toCYON_s));
 505     if (CYIsCallable(context, toCYON)) {
 506         // XXX: this needs to be abstracted behind some kind of function
 507         JSValueRef arguments[1] = {CYCastJSValue(context, reinterpret_cast<uintptr_t>(&objects))};
 508         JSValueRef value(CYCallAsFunction(context, (JSObjectRef) toCYON, object, 1, arguments));
 509         _assert(value != NULL);
 510         return CYPoolCString(pool, context, value);
 511     }
 512
 513     JSValueRef toJSON(CYGetProperty(context, object, toJSON_s));
 514     if (CYIsCallable(context, toJSON)) {
 515         JSValueRef arguments[1] = {CYCastJSValue(context, CYJSString(""))};
 516         return _jsccall(CYPoolCCYON, pool, context, CYCallAsFunction(context, (JSObjectRef) toJSON, object, 1, arguments), objects);
 517     }
 518
 519     if (JSObjectIsFunction(context, object)) {
 520         JSValueRef toString(CYGetProperty(context, object, toString_s));
 521         if (CYIsCallable(context, toString)) {
 522             JSValueRef arguments[1] = {CYCastJSValue(context, CYJSString(""))};
 523             JSValueRef value(CYCallAsFunction(context, (JSObjectRef) toString, object, 1, arguments));
 524             _assert(value != NULL);
 525             return CYPoolCString(pool, context, value);
 526         }
 527     }
 528
 529     _assert(objects.insert(object).second);
 530
 531     std::ostringstream str;
 532
 533     JSValueRef value(CYGetProperty(context, object, constructor_s));
 534     if (JSValueIsObject(context, value)) {
 535         JSObjectRef constructor(CYCastJSObject(context, value));
 536         JSValueRef theory(CYGetProperty(context, constructor, prototype_s));
 537         JSValueRef practice(JSObjectGetPrototype(context, object));
 538
 539         if (CYIsStrictEqual(context, theory, practice)) {
 540             JSValueRef name(CYGetProperty(context, constructor, name_s));
 541             if (!JSValueIsUndefined(context, name)) {
 542                 auto utf8(CYPoolUTF8String(pool, context, CYJSString(context, name)));
 543                 if (utf8 != "Object")
 544                     str << "new" << ' ' << utf8;
 545             }
 546         }
 547     }
 548
 549     str << '{';
 550
 551     // XXX: this is, sadly, going to leak
 552     JSPropertyNameArrayRef names(JSObjectCopyPropertyNames(context, object));
 553
 554     bool comma(false);
 555
 556     for (size_t index(0), count(JSPropertyNameArrayGetCount(names)); index != count; ++index) {
 557         if (comma)
 558             str << ',';
 559         else
 560             comma = true;
 561
 562         JSStringRef name(JSPropertyNameArrayGetNameAtIndex(names, index));
 563         CYUTF8String string(CYPoolUTF8String(pool, context, name));
 564
 565         if (CYIsKey(string))
 566             str << string.data;
 567         else
 568             CYStringify(str, string.data, string.size, CYStringifyModeLegacy);
 569
 570         str << ':';
 571
 572         try {
 573             JSValueRef value(CYGetProperty(context, object, name));
 574             str << CYPoolCCYON(pool, context, value, objects);
 575         } catch (const CYException &error) {
 576             str << "@error";
 577         }
 578     }
 579
 580     JSPropertyNameArrayRelease(names);
 581
 582     str << '}';
 583
 584     std::string string(str.str());
 585     return pool.strmemdup(string.c_str(), string.size());
 586 }
 587
 588 std::set<void *> *CYCastObjects(JSContextRef context, JSObjectRef _this, size_t count, const JSValueRef arguments[]) {
 589     if (count == 0)
 590         return NULL;
 591     return CYCastPointer<std::set<void *> *>(context, arguments[0]);
 592 }
 593
 594 static JSValueRef Array_callAsFunction_toCYON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
 595     std::set<void *> *objects(CYCastObjects(context, _this, count, arguments));
 596     // XXX: this is horribly inefficient
 597     std::set<void *> backup;
 598     if (objects == NULL)
 599         objects = &backup;
 600
 601     CYPool pool;
 602     std::ostringstream str;
 603
 604     str << '[';
 605
 606     JSValueRef length(CYGetProperty(context, _this, length_s));
 607     bool comma(false);
 608
 609     for (size_t index(0), count(CYCastDouble(context, length)); index != count; ++index) {
 610         if (comma)
 611             str << ',';
 612         else
 613             comma = true;
 614
 615         try {
 616             JSValueRef value(CYGetProperty(context, _this, index));
 617             if (!JSValueIsUndefined(context, value))
 618                 str << CYPoolCCYON(pool, context, value, *objects);
 619             else {
 620                 str << ',';
 621                 comma = false;
 622             }
 623         } catch (const CYException &error) {
 624             str << "@error";
 625         }
 626     }
 627
 628     str << ']';
 629
 630     std::string value(str.str());
 631     return CYCastJSValue(context, CYJSString(CYUTF8String(value.c_str(), value.size())));
 632 } CYCatch(NULL) }
 633
 634 static JSValueRef String_callAsFunction_toCYON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
 635     CYPool pool;
 636     std::ostringstream str;
 637
 638     CYUTF8String string(CYPoolUTF8String(pool, context, CYJSString(context, _this)));
 639     CYStringify(str, string.data, string.size, CYStringifyModeCycript);
 640
 641     std::string value(str.str());
 642     return CYCastJSValue(context, CYJSString(CYUTF8String(value.c_str(), value.size())));
 643 } CYCatch(NULL) }
 644
 645 JSObjectRef CYMakePointer(JSContextRef context, void *pointer, const sig::Type &type, ffi_type *ffi, JSObjectRef owner) {
 646     return CYPrivate<Pointer>::Make(context, pointer, type, context, owner);
 647 }
 648
 649 static JSValueRef CYMakeFunctor(JSContextRef context, void (*function)(), bool variadic, const sig::Signature &signature) {
 650     if (function == NULL)
 651         return CYJSNull(context);
 652     return JSObjectMake(context, cy::Functor::Class_, new cy::Functor(function, variadic, signature));
 653 }
 654
 655 // XXX: remove this, as it is really stupid
 656 static JSObjectRef CYMakeFunctor(JSContextRef context, const char *symbol, const char *encoding) {
 657     void (*function)()(reinterpret_cast<void (*)()>(CYCastSymbol(symbol)));
 658     if (function == NULL)
 659         return NULL;
 660
 661     cy::Functor *internal(new cy::Functor(function, encoding));
 662     ++internal->count_;
 663     return JSObjectMake(context, cy::Functor::Class_, internal);
 664 }
 665
 666 bool CYGetOffset(CYPool &pool, JSContextRef context, JSStringRef value, ssize_t &index) {
 667     return CYGetOffset(CYPoolCString(pool, context, value), index);
 668 }
 669
 670 void *CYCastPointer_(JSContextRef context, JSValueRef value, bool *guess) {
 671     if (value == NULL)
 672         return NULL;
 673     else switch (JSValueGetType(context, value)) {
 674         case kJSTypeNull:
 675             return NULL;
 676         case kJSTypeObject: {
 677             JSObjectRef object((JSObjectRef) value);
 678             if (JSValueIsObjectOfClass(context, value, CYPrivate<Pointer>::Class_)) {
 679                 Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(object)));
 680                 return internal->value_;
 681             }
 682             JSValueRef toPointer(CYGetProperty(context, object, toPointer_s));
 683             if (CYIsCallable(context, toPointer)) {
 684                 JSValueRef value(CYCallAsFunction(context, (JSObjectRef) toPointer, object, 0, NULL));
 685                 _assert(value != NULL);
 686                 return CYCastPointer_(context, value, guess);
 687             }
 688         } default:
 689             if (guess != NULL)
 690                 *guess = true;
 691         case kJSTypeNumber:
 692             double number(CYCastDouble(context, value));
 693             if (!std::isnan(number))
 694                 return reinterpret_cast<void *>(static_cast<uintptr_t>(static_cast<long long>(number)));
 695             if (guess == NULL)
 696                 throw CYJSError(context, "cannot convert value to pointer");
 697             else {
 698                 *guess = true;
 699                 return NULL;
 700             }
 701     }
 702 }
 703
 704 namespace sig {
 705
 706 // XXX: this is somehow not quite a template :/
 707
 708 template <>
 709 void Primitive<bool>::PoolFFI(CYPool *pool, JSContextRef context, ffi_type *ffi, void *data, JSValueRef value) const {
 710     *reinterpret_cast<bool *>(data) = JSValueToBoolean(context, value);
 711 }
 712
 713 #define CYPoolFFI_(Type_) \
 714 template <> \
 715 void Primitive<Type_>::PoolFFI(CYPool *pool, JSContextRef context, ffi_type *ffi, void *data, JSValueRef value) const { \
 716     *reinterpret_cast<Type_ *>(data) = CYCastDouble(context, value); \
 717 }
 718
 719 CYPoolFFI_(char)
 720 CYPoolFFI_(double)
 721 CYPoolFFI_(float)
 722 CYPoolFFI_(signed char)
 723 CYPoolFFI_(signed int)
 724 CYPoolFFI_(signed long int)
 725 CYPoolFFI_(signed long long int)
 726 CYPoolFFI_(signed short int)
 727 CYPoolFFI_(unsigned char)
 728 CYPoolFFI_(unsigned int)
 729 CYPoolFFI_(unsigned long int)
 730 CYPoolFFI_(unsigned long long int)
 731 CYPoolFFI_(unsigned short int)
 732
 733 #ifdef __SIZEOF_INT128__
 734 CYPoolFFI_(signed __int128)
 735 CYPoolFFI_(unsigned __int128)
 736 #endif
 737
 738 void Void::PoolFFI(CYPool *pool, JSContextRef context, ffi_type *ffi, void *data, JSValueRef value) const {
 739     _assert(false);
 740 }
 741
 742 void Unknown::PoolFFI(CYPool *pool, JSContextRef context, ffi_type *ffi, void *data, JSValueRef value) const {
 743     _assert(false);
 744 }
 745
 746 void String::PoolFFI(CYPool *pool, JSContextRef context, ffi_type *ffi, void *data, JSValueRef value) const {
 747     bool guess(false);
 748     *reinterpret_cast<const char **>(data) = CYCastPointer<const char *>(context, value, &guess);
 749     if (guess && pool != NULL)
 750         *reinterpret_cast<const char **>(data) = CYPoolCString(*pool, context, value);
 751 }
 752
 753 void Bits::PoolFFI(CYPool *pool, JSContextRef context, ffi_type *ffi, void *data, JSValueRef value) const {
 754     _assert(false);
 755 }
 756
 757 static void CYArrayCopy(CYPool *pool, JSContextRef context, uint8_t *base, size_t length, const sig::Type &type, ffi_type *ffi, JSValueRef value, JSObjectRef object) {
 758     for (size_t index(0); index != length; ++index) {
 759         JSValueRef rhs;
 760         if (object == NULL)
 761             rhs = value;
 762         else {
 763             rhs = CYGetProperty(context, object, index);
 764             if (JSValueIsUndefined(context, rhs))
 765                 throw CYJSError(context, "unable to extract array value");
 766         }
 767
 768         type.PoolFFI(pool, context, ffi, base, rhs);
 769         base += ffi->size;
 770     }
 771 }
 772
 773 void Pointer::PoolFFI(CYPool *pool, JSContextRef context, ffi_type *ffi, void *data, JSValueRef value) const {
 774     bool guess(false);
 775     *reinterpret_cast<void **>(data) = CYCastPointer<void *>(context, value, &guess);
 776     if (!guess || pool == NULL || !JSValueIsObject(context, value))
 777         return;
 778     JSObjectRef object(CYCastJSObject(context, value));
 779     if (CYHasProperty(context, object, length_s)) {
 780         size_t length(CYArrayLength(context, object));
 781         ffi_type *element(type.GetFFI(*pool));
 782         size_t size(element->size * length);
 783         uint8_t *base(pool->malloc<uint8_t>(size, element->alignment));
 784         CYArrayCopy(pool, context, base, length, type, element, value, object);
 785         *reinterpret_cast<void **>(data) = base;
 786     }
 787 }
 788
 789 void Array::PoolFFI(CYPool *pool, JSContextRef context, ffi_type *ffi, void *data, JSValueRef value) const {
 790     if (size == 0)
 791         return;
 792     uint8_t *base(reinterpret_cast<uint8_t *>(data));
 793     JSObjectRef object(JSValueIsObject(context, value) ? (JSObjectRef) value : NULL);
 794     CYArrayCopy(pool, context, base, size, type, ffi->elements[0], value, object);
 795 }
 796
 797 void Enum::PoolFFI(CYPool *pool, JSContextRef context, ffi_type *ffi, void *data, JSValueRef value) const {
 798     return type.PoolFFI(pool, context, ffi, data, value);
 799 }
 800
 801 void Aggregate::PoolFFI(CYPool *pool, JSContextRef context, ffi_type *ffi, void *data, JSValueRef value) const {
 802     _assert(!overlap);
 803     _assert(signature.count != _not(size_t));
 804
 805     size_t offset(0);
 806     uint8_t *base(reinterpret_cast<uint8_t *>(data));
 807     JSObjectRef aggregate(JSValueIsObject(context, value) ? (JSObjectRef) value : NULL);
 808     for (size_t index(0); index != signature.count; ++index) {
 809         sig::Element *element(&signature.elements[index]);
 810         ffi_type *field(ffi->elements[index]);
 811
 812         JSValueRef rhs;
 813         if (aggregate == NULL)
 814             rhs = value;
 815         else {
 816             rhs = CYGetProperty(context, aggregate, index);
 817             if (JSValueIsUndefined(context, rhs)) {
 818                 if (element->name != NULL)
 819                     rhs = CYGetProperty(context, aggregate, CYJSString(element->name));
 820                 else
 821                     goto undefined;
 822                 if (JSValueIsUndefined(context, rhs)) undefined:
 823                     throw CYJSError(context, "unable to extract structure value");
 824             }
 825         }
 826
 827         element->type->PoolFFI(pool, context, field, base + offset, rhs);
 828         offset += field->size;
 829         CYAlign(offset, field->alignment);
 830     }
 831 }
 832
 833 void Function::PoolFFI(CYPool *pool, JSContextRef context, ffi_type *ffi, void *data, JSValueRef value) const {
 834     _assert(false);
 835 }
 836
 837 #define CYFromFFI_(Type_) \
 838 template <> \
 839 JSValueRef Primitive<Type_>::FromFFI(JSContextRef context, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) const { \
 840     return CYCastJSValue(context, *reinterpret_cast<Type_ *>(data)); \
 841 }
 842
 843 CYFromFFI_(bool)
 844 CYFromFFI_(char)
 845 CYFromFFI_(double)
 846 CYFromFFI_(float)
 847 CYFromFFI_(signed char)
 848 CYFromFFI_(signed int)
 849 CYFromFFI_(signed long int)
 850 CYFromFFI_(signed long long int)
 851 CYFromFFI_(signed short int)
 852 CYFromFFI_(unsigned char)
 853 CYFromFFI_(unsigned int)
 854 CYFromFFI_(unsigned long int)
 855 CYFromFFI_(unsigned long long int)
 856 CYFromFFI_(unsigned short int)
 857
 858 #ifdef __SIZEOF_INT128__
 859 CYFromFFI_(signed __int128)
 860 CYFromFFI_(unsigned __int128)
 861 #endif
 862
 863 JSValueRef Void::FromFFI(JSContextRef context, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) const {
 864     return CYJSUndefined(context);
 865 }
 866
 867 JSValueRef Unknown::FromFFI(JSContextRef context, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) const {
 868     _assert(false);
 869 }
 870
 871 JSValueRef String::FromFFI(JSContextRef context, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) const {
 872     if (char *value = *reinterpret_cast<char **>(data))
 873         return CYPrivate<CString>::Make(context, value, context, owner);
 874     return CYJSNull(context);
 875 }
 876
 877 JSValueRef Bits::FromFFI(JSContextRef context, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) const {
 878     _assert(false);
 879 }
 880
 881 JSValueRef Pointer::FromFFI(JSContextRef context, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) const {
 882     if (void *value = *reinterpret_cast<void **>(data))
 883         return CYMakePointer(context, value, type, NULL, owner);
 884     return CYJSNull(context);
 885 }
 886
 887 JSValueRef Array::FromFFI(JSContextRef context, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) const {
 888     return CYPrivate<CArray>::Make(context, data, size, type, ffi->elements[0], context, owner);
 889 }
 890
 891 JSValueRef Enum::FromFFI(JSContextRef context, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) const {
 892     return type.FromFFI(context, ffi, data, initialize, owner);
 893 }
 894
 895 JSValueRef Aggregate::FromFFI(JSContextRef context, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) const {
 896     _assert(!overlap);
 897     _assert(signature.count != _not(size_t));
 898     return CYPrivate<Struct_privateData>::Make(context, data, *this, ffi, context, owner);
 899 }
 900
 901 JSValueRef Function::FromFFI(JSContextRef context, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) const {
 902     return CYMakeFunctor(context, reinterpret_cast<void (*)()>(data), variadic, signature);
 903 }
 904
 905 }
 906
 907 void CYExecuteClosure(ffi_cif *cif, void *result, void **arguments, void *arg) {
 908     Closure_privateData *internal(reinterpret_cast<Closure_privateData *>(arg));
 909
 910     JSContextRef context(internal->function_);
 911
 912     size_t count(internal->cif_.nargs);
 913     JSValueRef values[count];
 914
 915     for (size_t index(0); index != count; ++index)
 916         values[index] = internal->signature_.elements[1 + index].type->FromFFI(context, internal->cif_.arg_types[index], arguments[index]);
 917
 918     JSValueRef value(internal->adapter_(context, count, values, internal->function_));
 919     if (internal->cif_.rtype != &ffi_type_void)
 920         internal->signature_.elements[0].type->PoolFFI(NULL, context, internal->cif_.rtype, result, value);
 921 }
 922
 923 static JSValueRef FunctionAdapter_(JSContextRef context, size_t count, JSValueRef values[], JSObjectRef function) {
 924     return CYCallAsFunction(context, function, NULL, count, values);
 925 }
 926
 927 #if defined(__APPLE__) && (defined(__arm__) || defined(__arm64__))
 928 static void CYFreeFunctor(void *data) {
 929     ffi_closure_free(data);
 930 }
 931 #else
 932 static void CYFreeFunctor(void *data) {
 933     _syscall(munmap(data, sizeof(ffi_closure)));
 934 }
 935 #endif
 936
 937 Closure_privateData *CYMakeFunctor_(JSContextRef context, JSObjectRef function, const sig::Signature &signature, JSValueRef (*adapter)(JSContextRef, size_t, JSValueRef[], JSObjectRef)) {
 938     // XXX: in case of exceptions this will leak
 939     Closure_privateData *internal(new Closure_privateData(context, function, adapter, signature));
 940
 941 #if defined(__APPLE__) && (defined(__arm__) || defined(__arm64__))
 942     void *executable;
 943     ffi_closure *writable(reinterpret_cast<ffi_closure *>(ffi_closure_alloc(sizeof(ffi_closure), &executable)));
 944
 945     ffi_status status(ffi_prep_closure_loc(writable, &internal->cif_, &CYExecuteClosure, internal, executable));
 946     _assert(status == FFI_OK);
 947
 948     internal->pool_->atexit(&CYFreeFunctor, writable);
 949     internal->value_ = reinterpret_cast<void (*)()>(executable);
 950 #else
 951     ffi_closure *closure((ffi_closure *) _syscall(mmap(
 952         NULL, sizeof(ffi_closure),
 953         PROT_READ | PROT_WRITE, MAP_ANON | MAP_PRIVATE,
 954         -1, 0
 955     )));
 956
 957     ffi_status status(ffi_prep_closure(closure, &internal->cif_, &CYExecuteClosure, internal));
 958     _assert(status == FFI_OK);
 959
 960     _syscall(mprotect(closure, sizeof(*closure), PROT_READ | PROT_EXEC));
 961
 962     internal->pool_->atexit(&CYFreeFunctor, closure);
 963     internal->value_ = reinterpret_cast<void (*)()>(closure);
 964 #endif
 965
 966     return internal;
 967 }
 968
 969 static JSObjectRef CYMakeFunctor(JSContextRef context, JSObjectRef function, const sig::Signature &signature) {
 970     Closure_privateData *internal(CYMakeFunctor_(context, function, signature, &FunctionAdapter_));
 971     JSObjectRef object(JSObjectMake(context, cy::Functor::Class_, internal));
 972     // XXX: see above notes about needing to leak
 973     JSValueProtect(CYGetJSContext(context), object);
 974     return object;
 975 }
 976
 977 JSValueRef CYGetCachedValue(JSContextRef context, JSStringRef name) {
 978     return CYGetProperty(context, CYCastJSObject(context, CYGetProperty(context, CYGetGlobalObject(context), cy_s)), name);
 979 }
 980
 981 JSObjectRef CYGetCachedObject(JSContextRef context, JSStringRef name) {
 982     return CYCastJSObject(context, CYGetCachedValue(context, name));
 983 }
 984
 985 static JSValueRef CYMakeFunctor(JSContextRef context, JSValueRef value, bool variadic, const sig::Signature &signature) {
 986     JSObjectRef Function(CYGetCachedObject(context, CYJSString("Function")));
 987
 988     bool function(_jsccall(JSValueIsInstanceOfConstructor, context, value, Function));
 989     if (function) {
 990         JSObjectRef function(CYCastJSObject(context, value));
 991         return CYMakeFunctor(context, function, signature);
 992     } else {
 993         void (*function)()(CYCastPointer<void (*)()>(context, value));
 994         return CYMakeFunctor(context, function, variadic, signature);
 995     }
 996 }
 997
 998 static JSValueRef CString_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
 999     CYPool pool;
1000     CString *internal(reinterpret_cast<CString *>(JSObjectGetPrivate(object)));
1001
1002     ssize_t offset;
1003     if (JSStringIsEqualToUTF8CString(property, "$cyi"))
1004         offset = 0;
1005     else if (!CYGetOffset(pool, context, property, offset))
1006         return NULL;
1007
1008     return CYCastJSValue(context, CYJSString(CYUTF8String(&internal->value_[offset], 1)));
1009 } CYCatch(NULL) }
1010
1011 static bool CString_setProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef value, JSValueRef *exception) { CYTry {
1012     CYPool pool;
1013     CString *internal(reinterpret_cast<CString *>(JSObjectGetPrivate(object)));
1014
1015     ssize_t offset;
1016     if (JSStringIsEqualToUTF8CString(property, "$cyi"))
1017         offset = 0;
1018     else if (!CYGetOffset(pool, context, property, offset))
1019         return false;
1020
1021     const char *data(CYPoolCString(pool, context, value));
1022     internal->value_[offset] = *data;
1023     return true;
1024 } CYCatch(false) }
1025
1026 static bool Index_(CYPool &pool, JSContextRef context, Struct_privateData *internal, JSStringRef property, ssize_t &index, uint8_t *&base) {
1027     Type_privateData *typical(internal->type_);
1028     sig::Aggregate *type(static_cast<sig::Aggregate *>(typical->type_));
1029     if (type == NULL)
1030         return false;
1031
1032     const char *name(CYPoolCString(pool, context, property));
1033     size_t length(strlen(name));
1034     double number(CYCastDouble(name, length));
1035
1036     size_t count(type->signature.count);
1037
1038     if (std::isnan(number)) {
1039         if (property == NULL)
1040             return false;
1041
1042         sig::Element *elements(type->signature.elements);
1043
1044         for (size_t local(0); local != count; ++local) {
1045             sig::Element *element(&elements[local]);
1046             if (element->name != NULL && strcmp(name, element->name) == 0) {
1047                 index = local;
1048                 goto base;
1049             }
1050         }
1051
1052         return false;
1053     } else {
1054         index = static_cast<ssize_t>(number);
1055         if (index != number || index < 0 || static_cast<size_t>(index) >= count)
1056             return false;
1057     }
1058
1059   base:
1060     ffi_type **elements(typical->GetFFI()->elements);
1061
1062     size_t offset(0);
1063     for (ssize_t local(0); local != index; ++local) {
1064         offset += elements[local]->size;
1065         CYAlign(offset, elements[local + 1]->alignment);
1066     }
1067
1068     base = reinterpret_cast<uint8_t *>(internal->value_) + offset;
1069     return true;
1070 }
1071
1072 static void *Offset_(CYPool &pool, JSContextRef context, JSStringRef property, void *data, ffi_type *ffi) {
1073     ssize_t offset;
1074     if (JSStringIsEqualToUTF8CString(property, "$cyi"))
1075         offset = 0;
1076     else if (!CYGetOffset(pool, context, property, offset))
1077         return NULL;
1078     return reinterpret_cast<uint8_t *>(data) + ffi->size * offset;
1079 }
1080
1081 static JSValueRef Offset_getProperty(CYPool &pool, JSContextRef context, JSStringRef property, void *data, Type_privateData *typical, JSObjectRef owner) {
1082     ffi_type *ffi(typical->GetFFI());
1083     void *base(Offset_(pool, context, property, data, ffi));
1084     if (base == NULL)
1085         return NULL;
1086     return typical->type_->FromFFI(context, ffi, base, false, owner);
1087 }
1088
1089 static bool Offset_setProperty(CYPool &pool, JSContextRef context, JSStringRef property, void *data, Type_privateData *typical, JSValueRef value) {
1090     ffi_type *ffi(typical->GetFFI());
1091     void *base(Offset_(pool, context, property, data, ffi));
1092     if (base == NULL)
1093         return false;
1094
1095     typical->type_->PoolFFI(NULL, context, ffi, base, value);
1096     return true;
1097 }
1098
1099 static JSValueRef CArray_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1100     CYPool pool;
1101     CArray *internal(reinterpret_cast<CArray *>(JSObjectGetPrivate(object)));
1102     if (JSStringIsEqual(property, length_s))
1103         return CYCastJSValue(context, internal->length_);
1104     Type_privateData *typical(internal->type_);
1105     JSObjectRef owner(internal->owner_ ?: object);
1106     return Offset_getProperty(pool, context, property, internal->value_, typical, owner);
1107 } CYCatch(NULL) }
1108
1109 static bool CArray_setProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef value, JSValueRef *exception) { CYTry {
1110     CYPool pool;
1111     Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(object)));
1112     Type_privateData *typical(internal->type_);
1113     return Offset_setProperty(pool, context, property, internal->value_, typical, value);
1114 } CYCatch(false) }
1115
1116 static JSValueRef Pointer_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1117     CYPool pool;
1118     Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(object)));
1119
1120     Type_privateData *typical(internal->type_);
1121
1122     if (sig::Function *function = dynamic_cast<sig::Function *>(typical->type_)) {
1123         if (!JSStringIsEqualToUTF8CString(property, "$cyi"))
1124             return NULL;
1125         return CYMakeFunctor(context, reinterpret_cast<void (*)()>(internal->value_), function->variadic, function->signature);
1126     }
1127
1128     JSObjectRef owner(internal->owner_ ?: object);
1129     return Offset_getProperty(pool, context, property, internal->value_, typical, owner);
1130 } CYCatch(NULL) }
1131
1132 static bool Pointer_setProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef value, JSValueRef *exception) { CYTry {
1133     CYPool pool;
1134     Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(object)));
1135     Type_privateData *typical(internal->type_);
1136     return Offset_setProperty(pool, context, property, internal->value_, typical, value);
1137 } CYCatch(false) }
1138
1139 static JSValueRef Struct_callAsFunction_$cya(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1140     Struct_privateData *internal(reinterpret_cast<Struct_privateData *>(JSObjectGetPrivate(_this)));
1141     Type_privateData *typical(internal->type_);
1142     return CYMakePointer(context, internal->value_, *typical->type_, typical->ffi_, _this);
1143 } CYCatch(NULL) }
1144
1145 static JSValueRef Struct_getProperty_$cyt(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1146     Struct_privateData *internal(reinterpret_cast<Struct_privateData *>(JSObjectGetPrivate(object)));
1147     return CYMakeType(context, *internal->type_->type_);
1148 } CYCatch(NULL) }
1149
1150 static JSValueRef Struct_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1151     CYPool pool;
1152     Struct_privateData *internal(reinterpret_cast<Struct_privateData *>(JSObjectGetPrivate(object)));
1153     Type_privateData *typical(internal->type_);
1154     sig::Aggregate *type(static_cast<sig::Aggregate *>(typical->type_));
1155
1156     ssize_t index;
1157     uint8_t *base;
1158
1159     if (!Index_(pool, context, internal, property, index, base))
1160         return NULL;
1161
1162     JSObjectRef owner(internal->owner_ ?: object);
1163
1164     return type->signature.elements[index].type->FromFFI(context, typical->GetFFI()->elements[index], base, false, owner);
1165 } CYCatch(NULL) }
1166
1167 static bool Struct_setProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef value, JSValueRef *exception) { CYTry {
1168     CYPool pool;
1169     Struct_privateData *internal(reinterpret_cast<Struct_privateData *>(JSObjectGetPrivate(object)));
1170     Type_privateData *typical(internal->type_);
1171     sig::Aggregate *type(static_cast<sig::Aggregate *>(typical->type_));
1172
1173     ssize_t index;
1174     uint8_t *base;
1175
1176     if (!Index_(pool, context, internal, property, index, base))
1177         return false;
1178
1179     type->signature.elements[index].type->PoolFFI(NULL, context, typical->GetFFI()->elements[index], base, value);
1180     return true;
1181 } CYCatch(false) }
1182
1183 static void Struct_getPropertyNames(JSContextRef context, JSObjectRef object, JSPropertyNameAccumulatorRef names) {
1184     Struct_privateData *internal(reinterpret_cast<Struct_privateData *>(JSObjectGetPrivate(object)));
1185     Type_privateData *typical(internal->type_);
1186     sig::Aggregate *type(static_cast<sig::Aggregate *>(typical->type_));
1187
1188     if (type == NULL)
1189         return;
1190
1191     size_t count(type->signature.count);
1192     sig::Element *elements(type->signature.elements);
1193
1194     char number[32];
1195
1196     for (size_t index(0); index != count; ++index) {
1197         const char *name;
1198         name = elements[index].name;
1199
1200         if (name == NULL) {
1201             sprintf(number, "%zu", index);
1202             name = number;
1203         }
1204
1205         JSPropertyNameAccumulatorAddName(names, CYJSString(name));
1206     }
1207 }
1208
1209 static sig::Void Void_;
1210 static sig::Pointer PointerToVoid_(Void_);
1211
1212 static sig::Type *CYGetType(CYPool &pool, JSContextRef context, JSValueRef value) {
1213     if (JSValueIsNull(context, value))
1214         return &PointerToVoid_;
1215     JSObjectRef object(CYCastJSObject(context, value));
1216     JSObjectRef type(CYCastJSObject(context, CYGetProperty(context, object, cyt_s)));
1217     _assert(JSValueIsObjectOfClass(context, type, CYPrivate<Type_privateData>::Class_));
1218     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(type)));
1219     return internal->type_;
1220 }
1221
1222 void CYCallFunction(CYPool &pool, JSContextRef context, ffi_cif *cif, void (*function)(), void *value, void **values) {
1223     ffi_call(cif, function, value, values);
1224 }
1225
1226 JSValueRef CYCallFunction(CYPool &pool, JSContextRef context, size_t setups, void *setup[], size_t count, const JSValueRef arguments[], bool initialize, bool variadic, const sig::Signature &signature, ffi_cif *cif, void (*function)()) {
1227     size_t have(setups + count);
1228     size_t need(signature.count - 1);
1229
1230     if (have < need)
1231         throw CYJSError(context, "insufficient number of arguments to ffi function");
1232
1233     ffi_cif corrected;
1234     sig::Element *elements(signature.elements);
1235
1236     if (have > need) {
1237         if (!variadic)
1238             throw CYJSError(context, "exorbitant number of arguments to ffi function");
1239
1240         elements = new (pool) sig::Element[have + 1];
1241         memcpy(elements, signature.elements, sizeof(sig::Element) * (need + 1));
1242
1243         for (size_t index(need); index != have; ++index) {
1244             sig::Element &element(elements[index + 1]);
1245             element.name = NULL;
1246             element.offset = _not(size_t);
1247             element.type = CYGetType(pool, context, arguments[index - setups]);
1248         }
1249
1250         sig::Signature extended;
1251         extended.elements = elements;
1252         extended.count = have + 1;
1253         sig::sig_ffi_cif(pool, signature.count, extended, &corrected);
1254         cif = &corrected;
1255     }
1256
1257     void *values[have];
1258     memcpy(values, setup, sizeof(void *) * setups);
1259
1260     for (size_t index(setups); index != have; ++index) {
1261         sig::Element &element(elements[index + 1]);
1262         ffi_type *ffi(cif->arg_types[index]);
1263         values[index] = pool.malloc<uint8_t>(ffi->size, ffi->alignment);
1264         element.type->PoolFFI(&pool, context, ffi, values[index], arguments[index - setups]);
1265     }
1266
1267     CYBuffer buffer(context);
1268     uint8_t *value(buffer->malloc<uint8_t>(std::max<size_t>(cif->rtype->size, sizeof(ffi_arg)), std::max<size_t>(cif->rtype->alignment, alignof(ffi_arg))));
1269
1270     void (*call)(CYPool &, JSContextRef, ffi_cif *, void (*)(), void *, void **) = &CYCallFunction;
1271     // XXX: this only supports one hook, but it is a bad idea anyway
1272     for (CYHook *hook : GetHooks())
1273         if (hook->CallFunction != NULL)
1274             call = hook->CallFunction;
1275
1276     call(pool, context, cif, function, value, values);
1277     return signature.elements[0].type->FromFFI(context, cif->rtype, value, initialize, buffer);
1278 }
1279
1280 static JSValueRef Functor_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1281     CYPool pool;
1282     cy::Functor *internal(reinterpret_cast<cy::Functor *>(JSObjectGetPrivate(object)));
1283     return CYCallFunction(pool, context, 0, NULL, count, arguments, false, internal->variadic_, internal->signature_, &internal->cif_, internal->value_);
1284 } CYCatch(NULL) }
1285
1286 static JSValueRef Pointer_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1287     Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(object)));
1288     if (dynamic_cast<sig::Function *>(internal->type_->type_) == NULL)
1289         throw CYJSError(context, "cannot call a pointer to non-function");
1290     JSObjectRef functor(CYCastJSObject(context, CYGetProperty(context, object, cyi_s)));
1291     return CYCallAsFunction(context, functor, _this, count, arguments);
1292 } CYCatch(NULL) }
1293
1294 JSObjectRef CYMakeType(JSContextRef context, const sig::Type &type) {
1295     return CYPrivate<Type_privateData>::Make(context, type);
1296 }
1297
1298 extern "C" bool CYBridgeHash(CYPool &pool, CYUTF8String name, const char *&code, unsigned &flags) {
1299     sqlite3_stmt *statement;
1300
1301     _sqlcall(sqlite3_prepare(database_,
1302         "select "
1303             "\"cache\".\"code\", "
1304             "\"cache\".\"flags\" "
1305         "from \"cache\" "
1306         "where"
1307             " \"cache\".\"system\" & " CY_SYSTEM " == " CY_SYSTEM " and"
1308             " \"cache\".\"name\" = ?"
1309         " limit 1"
1310     , -1, &statement, NULL));
1311
1312     _sqlcall(sqlite3_bind_text(statement, 1, name.data, name.size, SQLITE_STATIC));
1313
1314     bool success;
1315     if (_sqlcall(sqlite3_step(statement)) == SQLITE_DONE)
1316         success = false;
1317     else {
1318         success = true;
1319         code = sqlite3_column_pooled(pool, statement, 0);
1320         flags = sqlite3_column_int(statement, 1);
1321     }
1322
1323     _sqlcall(sqlite3_finalize(statement));
1324     return success;
1325 }
1326
1327 static bool All_hasProperty(JSContextRef context, JSObjectRef object, JSStringRef property) {
1328     if (JSStringIsEqualToUTF8CString(property, "errno"))
1329         return true;
1330
1331     JSObjectRef global(CYGetGlobalObject(context));
1332     JSObjectRef cycript(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Cycript"))));
1333     JSObjectRef alls(CYCastJSObject(context, CYGetProperty(context, cycript, CYJSString("alls"))));
1334
1335     for (size_t i(0), count(CYArrayLength(context, alls)); i != count; ++i)
1336         if (JSObjectRef space = CYCastJSObject(context, CYArrayGet(context, alls, count - i - 1)))
1337             if (CYHasProperty(context, space, property))
1338                 return true;
1339
1340     CYPool pool;
1341     const char *code;
1342     unsigned flags;
1343     if (CYBridgeHash(pool, CYPoolUTF8String(pool, context, property), code, flags))
1344         return true;
1345
1346     return false;
1347 }
1348
1349 static JSValueRef All_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1350     if (JSStringIsEqualToUTF8CString(property, "errno"))
1351         return CYCastJSValue(context, errno);
1352
1353     JSObjectRef global(CYGetGlobalObject(context));
1354     JSObjectRef cycript(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Cycript"))));
1355     JSObjectRef alls(CYCastJSObject(context, CYGetProperty(context, cycript, CYJSString("alls"))));
1356
1357     for (size_t i(0), count(CYArrayLength(context, alls)); i != count; ++i)
1358         if (JSObjectRef space = CYCastJSObject(context, CYArrayGet(context, alls, count - i - 1)))
1359             if (JSValueRef value = CYGetProperty(context, space, property))
1360                 if (!JSValueIsUndefined(context, value))
1361                     return value;
1362
1363     CYPool pool;
1364     const char *code;
1365     unsigned flags;
1366     if (CYBridgeHash(pool, CYPoolUTF8String(pool, context, property), code, flags)) {
1367         CYUTF8String parsed;
1368
1369         try {
1370             parsed = CYPoolCode(pool, code);
1371         } catch (const CYException &error) {
1372             CYThrow("%s", pool.strcat("error caching ", CYPoolCString(pool, context, property), ": ", error.PoolCString(pool), NULL));
1373         }
1374
1375         JSObjectRef cache(CYGetCachedObject(context, CYJSString("cache")));
1376
1377         JSObjectRef stub;
1378         if (flags == CYBridgeType) {
1379             stub = CYMakeType(context, sig::Void());
1380             CYSetProperty(context, cache, property, stub);
1381         } else
1382             stub = NULL;
1383
1384         JSValueRef value(_jsccall(JSEvaluateScript, context, CYJSString(parsed), NULL, NULL, 0));
1385
1386         switch (flags) {
1387             case CYBridgeVoid: {
1388             } break;
1389
1390             case CYBridgeHold: {
1391                 CYSetProperty(context, cache, property, value);
1392             } break;
1393
1394             case CYBridgeType: {
1395                 JSObjectRef swap(CYCastJSObject(context, value));
1396                 void *source(JSObjectGetPrivate(swap));
1397                 _assert(source != NULL);
1398                 void *target(JSObjectGetPrivate(stub));
1399                 _assert(JSObjectSetPrivate(swap, target));
1400                 _assert(JSObjectSetPrivate(stub, source));
1401                 value = stub;
1402             } break;
1403         }
1404
1405         return value;
1406     }
1407
1408     return NULL;
1409 } CYCatch(NULL) }
1410
1411 static JSValueRef All_complete_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1412     _assert(count == 1 || count == 2);
1413     CYPool pool;
1414     CYUTF8String prefix(CYPoolUTF8String(pool, context, CYJSString(context, arguments[0])));
1415
1416     JSObjectRef array(NULL);
1417
1418     {
1419     CYArrayBuilder<1024> values(context, array);
1420
1421     sqlite3_stmt *statement;
1422
1423     if (prefix.size == 0)
1424         _sqlcall(sqlite3_prepare(database_,
1425             "select "
1426                 "\"cache\".\"name\" "
1427             "from \"cache\" "
1428             "where"
1429                 " \"cache\".\"system\" & " CY_SYSTEM " == " CY_SYSTEM
1430         , -1, &statement, NULL));
1431     else {
1432         _sqlcall(sqlite3_prepare(database_,
1433             "select "
1434                 "\"cache\".\"name\" "
1435             "from \"cache\" "
1436             "where"
1437                 " \"cache\".\"name\" >= ? and \"cache\".\"name\" < ? and "
1438                 " \"cache\".\"system\" & " CY_SYSTEM " == " CY_SYSTEM
1439         , -1, &statement, NULL));
1440
1441         _sqlcall(sqlite3_bind_text(statement, 1, prefix.data, prefix.size, SQLITE_STATIC));
1442
1443         char *after(pool.strndup(prefix.data, prefix.size));
1444         ++after[prefix.size - 1];
1445         _sqlcall(sqlite3_bind_text(statement, 2, after, prefix.size, SQLITE_STATIC));
1446     }
1447
1448     while (_sqlcall(sqlite3_step(statement)) != SQLITE_DONE)
1449         values(CYCastJSValue(context, CYJSString(sqlite3_column_string(statement, 0))));
1450
1451     _sqlcall(sqlite3_finalize(statement));
1452     }
1453
1454     return array;
1455 } CYCatch(NULL) }
1456
1457 static void All_getPropertyNames(JSContextRef context, JSObjectRef object, JSPropertyNameAccumulatorRef names) {
1458     JSObjectRef global(CYGetGlobalObject(context));
1459     JSObjectRef cycript(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Cycript"))));
1460     JSObjectRef alls(CYCastJSObject(context, CYGetProperty(context, cycript, CYJSString("alls"))));
1461
1462     for (size_t i(0), count(CYArrayLength(context, alls)); i != count; ++i)
1463         if (JSObjectRef space = CYCastJSObject(context, CYArrayGet(context, alls, count - i - 1))) {
1464             JSPropertyNameArrayRef subset(JSObjectCopyPropertyNames(context, space));
1465             for (size_t index(0), count(JSPropertyNameArrayGetCount(subset)); index != count; ++index)
1466                 JSPropertyNameAccumulatorAddName(names, JSPropertyNameArrayGetNameAtIndex(subset, index));
1467             JSPropertyNameArrayRelease(subset);
1468         }
1469 }
1470
1471 static JSObjectRef CArray_new(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1472     _assert(false);
1473 } CYCatchObject() }
1474
1475 static JSObjectRef CString_new(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1476     _assert(false);
1477 } CYCatchObject() }
1478
1479 static JSObjectRef Pointer_new(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1480     _assert(false);
1481 } CYCatchObject() }
1482
1483 static JSObjectRef Type_new(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1484     CYPool pool;
1485
1486     if (false) {
1487     } else if (count == 1) {
1488         switch (JSValueGetType(context, arguments[0])) {
1489             case kJSTypeString: {
1490                 const char *encoding(CYPoolCString(pool, context, arguments[0]));
1491                 sig::Signature signature;
1492                 sig::Parse(pool, &signature, encoding, &Structor_);
1493                 return CYMakeType(context, *signature.elements[0].type);
1494             } break;
1495
1496             case kJSTypeObject: {
1497                 // XXX: accept a set of enum constants and /guess/ at their size
1498                 _assert(false);
1499             } break;
1500
1501             default:
1502                 throw CYJSError(context, "incorrect kind of argument to new Type");
1503         }
1504     } else if (count == 2) {
1505         JSObjectRef types(CYCastJSObject(context, arguments[0]));
1506         size_t count(CYArrayLength(context, types));
1507
1508         JSObjectRef names(CYCastJSObject(context, arguments[1]));
1509
1510         sig::Aggregate type(false);
1511         type.signature.elements = new(pool) sig::Element[count];
1512         type.signature.count = count;
1513
1514         for (size_t i(0); i != count; ++i) {
1515             sig::Element &element(type.signature.elements[i]);
1516             element.offset = _not(size_t);
1517
1518             JSValueRef name(CYArrayGet(context, names, i));
1519             if (JSValueIsUndefined(context, name))
1520                 element.name = NULL;
1521             else
1522                 element.name = CYPoolCString(pool, context, name);
1523
1524             JSObjectRef object(CYCastJSObject(context, CYArrayGet(context, types, i)));
1525             _assert(JSValueIsObjectOfClass(context, object, CYPrivate<Type_privateData>::Class_));
1526             Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
1527             element.type = internal->type_;
1528             _assert(element.type != NULL);
1529         }
1530
1531         return CYMakeType(context, type);
1532     } else {
1533         throw CYJSError(context, "incorrect number of arguments to Type constructor");
1534     }
1535 } CYCatchObject() }
1536
1537 static JSValueRef Type_callAsFunction_$With(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], sig::Callable &type, JSValueRef *exception) { CYTry {
1538     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1539
1540     CYPool pool;
1541
1542     type.signature.elements = new(pool) sig::Element[1 + count];
1543     type.signature.count = 1 + count;
1544
1545     type.signature.elements[0].name = NULL;
1546     type.signature.elements[0].type = internal->type_;
1547     type.signature.elements[0].offset = _not(size_t);
1548
1549     for (size_t i(0); i != count; ++i) {
1550         sig::Element &element(type.signature.elements[i + 1]);
1551         element.name = NULL;
1552         element.offset = _not(size_t);
1553
1554         JSObjectRef object(CYCastJSObject(context, arguments[i]));
1555         _assert(JSValueIsObjectOfClass(context, object, CYPrivate<Type_privateData>::Class_));
1556         Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
1557
1558         element.type = internal->type_;
1559     }
1560
1561     return CYMakeType(context, type);
1562 } CYCatch(NULL) }
1563
1564 static JSValueRef Type_callAsFunction_arrayOf(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1565     if (count != 1)
1566         throw CYJSError(context, "incorrect number of arguments to Type.arrayOf");
1567     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1568
1569     CYPool pool;
1570     size_t index(CYGetIndex(pool, context, CYJSString(context, arguments[0])));
1571     if (index == _not(size_t))
1572         throw CYJSError(context, "invalid array size used with Type.arrayOf");
1573
1574     sig::Array type(*internal->type_, index);
1575     return CYMakeType(context, type);
1576 } CYCatch(NULL) }
1577
1578 static JSValueRef Type_callAsFunction_blockWith(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
1579 #ifdef CY_OBJECTIVEC
1580     sig::Block type;
1581     return Type_callAsFunction_$With(context, object, _this, count, arguments, type, exception);
1582 #else
1583     _assert(false);
1584 #endif
1585 }
1586
1587 static JSValueRef Type_callAsFunction_constant(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1588     if (count != 0)
1589         throw CYJSError(context, "incorrect number of arguments to Type.constant");
1590     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1591
1592     CYPool pool;
1593     sig::Type *type(internal->type_->Copy(pool));
1594     type->flags |= JOC_TYPE_CONST;
1595     return CYMakeType(context, *type);
1596 } CYCatch(NULL) }
1597
1598 static JSValueRef Type_callAsFunction_enumFor(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1599     if (count != 1)
1600         throw CYJSError(context, "incorrect number of arguments to Type.enumFor");
1601     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1602
1603     CYPool pool;
1604
1605     JSObjectRef constants(CYCastJSObject(context, arguments[0]));
1606
1607     // XXX: this is, sadly, going to leak
1608     JSPropertyNameArrayRef names(JSObjectCopyPropertyNames(context, constants));
1609
1610     size_t count(JSPropertyNameArrayGetCount(names));
1611
1612     sig::Enum type(*internal->type_, count);
1613     type.constants = new(pool) sig::Constant[count];
1614
1615     for (size_t index(0); index != count; ++index) {
1616         JSStringRef name(JSPropertyNameArrayGetNameAtIndex(names, index));
1617         JSValueRef value(CYGetProperty(context, constants, name));
1618         _assert(JSValueGetType(context, value) == kJSTypeNumber);
1619         CYUTF8String string(CYPoolUTF8String(pool, context, name));
1620         type.constants[index].name = string.data;
1621         type.constants[index].value = CYCastDouble(context, value);
1622     }
1623
1624     JSPropertyNameArrayRelease(names);
1625
1626     return CYMakeType(context, type);
1627 } CYCatch(NULL) }
1628
1629 static JSValueRef Type_callAsFunction_functionWith(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
1630     bool variadic(count != 0 && JSValueIsNull(context, arguments[count - 1]));
1631     sig::Function type(variadic);
1632     return Type_callAsFunction_$With(context, object, _this, variadic ? count - 1 : count, arguments, type, exception);
1633 }
1634
1635 static JSValueRef Type_callAsFunction_pointerTo(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1636     if (count != 0)
1637         throw CYJSError(context, "incorrect number of arguments to Type.pointerTo");
1638     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1639
1640     if (dynamic_cast<sig::Primitive<char> *>(internal->type_) != NULL)
1641         return CYMakeType(context, sig::String());
1642     else
1643         return CYMakeType(context, sig::Pointer(*internal->type_));
1644 } CYCatch(NULL) }
1645
1646 static JSValueRef Type_callAsFunction_withName(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1647     if (count != 1)
1648         throw CYJSError(context, "incorrect number of arguments to Type.withName");
1649     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1650
1651     CYPool pool;
1652     return CYMakeType(context, *internal->type_->Copy(pool, CYPoolCString(pool, context, arguments[0])));
1653 } CYCatch(NULL) }
1654
1655 static JSValueRef Type_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1656     if (count != 1)
1657         throw CYJSError(context, "incorrect number of arguments to type cast function");
1658     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
1659
1660     if (sig::Function *function = dynamic_cast<sig::Function *>(internal->type_))
1661         return CYMakeFunctor(context, arguments[0], function->variadic, function->signature);
1662
1663     CYBuffer buffer(context);
1664
1665     sig::Type *type(internal->type_);
1666     ffi_type *ffi(internal->GetFFI());
1667     void *data(buffer->malloc<void>(ffi->size, ffi->alignment));
1668
1669     type->PoolFFI(buffer, context, ffi, data, arguments[0]);
1670     JSValueRef value(type->FromFFI(context, ffi, data, false, buffer));
1671
1672     if (JSValueGetType(context, value) == kJSTypeNumber) {
1673         JSObjectRef typed(_jsccall(JSObjectCallAsConstructor, context, CYGetCachedObject(context, CYJSString("Number")), 1, &value));
1674         CYSetProperty(context, typed, cyt_s, object, kJSPropertyAttributeDontEnum);
1675         value = typed;
1676     }
1677
1678     return value;
1679 } CYCatch(NULL) }
1680
1681 static JSObjectRef Type_callAsConstructor(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1682     if (count > 1)
1683         throw CYJSError(context, "incorrect number of arguments to Type allocator");
1684     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
1685
1686     JSObjectRef pointer(CYMakePointer(context, NULL, *internal->type_, NULL, NULL));
1687     Pointer *value(reinterpret_cast<Pointer *>(JSObjectGetPrivate(pointer)));
1688
1689     sig::Type *type(internal->type_);
1690     ffi_type *ffi(internal->GetFFI());
1691     value->value_ = value->pool_->malloc<void>(ffi->size, ffi->alignment);
1692
1693     if (count == 0)
1694         memset(value->value_, 0, ffi->size);
1695     else
1696         type->PoolFFI(value->pool_, context, ffi, value->value_, arguments[0]);
1697
1698     return pointer;
1699 } CYCatchObject() }
1700
1701 // XXX: I don't even think the user should be allowed to do this
1702 static JSObjectRef Functor_new(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1703     if (count != 2)
1704         throw CYJSError(context, "incorrect number of arguments to Functor constructor");
1705     CYPool pool;
1706     const char *encoding(CYPoolCString(pool, context, arguments[1]));
1707     sig::Signature signature;
1708     sig::Parse(pool, &signature, encoding, &Structor_);
1709     // XXX: this can try to return null, and I guess then it just fails
1710     return CYCastJSObject(context, CYMakeFunctor(context, arguments[0], false, signature));
1711 } CYCatchObject() }
1712
1713 static JSValueRef CArray_callAsFunction_toPointer(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1714     CArray *internal(reinterpret_cast<CArray *>(JSObjectGetPrivate(_this)));
1715     JSObjectRef owner(internal->owner_ ?: object);
1716     return CYMakePointer(context, internal->value_, *internal->type_->type_, NULL, owner);
1717 } CYCatch(NULL) }
1718
1719 static JSValueRef CString_callAsFunction_toPointer(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1720     CString *internal(reinterpret_cast<CString *>(JSObjectGetPrivate(_this)));
1721     JSObjectRef owner(internal->owner_ ?: object);
1722     return CYMakePointer(context, internal->value_, sig::Primitive<char>(), NULL, owner);
1723 } CYCatch(NULL) }
1724
1725 static JSValueRef Functor_callAsFunction_$cya(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1726     CYPool pool;
1727     cy::Functor *internal(reinterpret_cast<cy::Functor *>(JSObjectGetPrivate(_this)));
1728
1729     sig::Function type(internal->variadic_);
1730     sig::Copy(pool, type.signature, internal->signature_);
1731
1732     return CYMakePointer(context, reinterpret_cast<void *>(internal->value_), type, NULL, NULL);
1733 } CYCatch(NULL) }
1734
1735 static JSValueRef Pointer_callAsFunction_toPointer(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1736     return _this;
1737 } CYCatch(NULL) }
1738
1739 static JSValueRef CArray_callAsFunction_valueOf(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1740     CArray *internal(reinterpret_cast<CArray *>(JSObjectGetPrivate(_this)));
1741     return CYCastJSValue(context, reinterpret_cast<uintptr_t>(internal->value_));
1742 } CYCatch(NULL) }
1743
1744 static JSValueRef Pointer_callAsFunction_valueOf(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1745     Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(_this)));
1746     return CYCastJSValue(context, reinterpret_cast<uintptr_t>(internal->value_));
1747 } CYCatch(NULL) }
1748
1749 static JSValueRef Functor_callAsFunction_valueOf(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1750     cy::Functor *internal(reinterpret_cast<cy::Functor *>(JSObjectGetPrivate(_this)));
1751     return CYCastJSValue(context, reinterpret_cast<uintptr_t>(internal->value_));
1752 } CYCatch(NULL) }
1753
1754 static JSValueRef Functor_callAsFunction_toCYON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1755     cy::Functor *internal(reinterpret_cast<cy::Functor *>(JSObjectGetPrivate(_this)));
1756     uint8_t *value(reinterpret_cast<uint8_t *>(internal->value_));
1757     _assert(value != NULL);
1758
1759     CYLocalPool pool;
1760
1761     sig::Function function(internal->variadic_);
1762     sig::Copy(pool, function.signature, internal->signature_);
1763
1764     CYPropertyName *name(internal->GetName(pool));
1765     auto typed(CYDecodeType(pool, &function));
1766
1767     std::ostringstream str;
1768     CYOptions options;
1769     CYOutput output(*str.rdbuf(), options);
1770     output.pretty_ = true;
1771     (new(pool) CYExternalExpression(new(pool) CYString("C"), typed, name))->Output(output, CYNoFlags);
1772     return CYCastJSValue(context, CYJSString(str.str()));
1773 } CYCatch(NULL) }
1774
1775 CYPropertyName *cy::Functor::GetName(CYPool &pool) const {
1776     Dl_info info;
1777     if (dladdr(reinterpret_cast<void *>(value_), &info) == 0 || strcmp(info.dli_sname, "<redacted>") == 0)
1778         return new(pool) CYNumber(reinterpret_cast<uintptr_t>(value_));
1779
1780     std::ostringstream str;
1781     str << info.dli_sname;
1782     off_t offset(reinterpret_cast<uint8_t *>(value_) - reinterpret_cast<uint8_t *>(info.dli_saddr));
1783     if (offset != 0)
1784         str << "+0x" << std::hex << offset;
1785     return new(pool) CYString(pool.strdup(str.str().c_str()));
1786 }
1787
1788 static JSValueRef Pointer_callAsFunction_toCYON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1789     std::set<void *> *objects(CYCastObjects(context, _this, count, arguments));
1790
1791     Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(_this)));
1792
1793     try {
1794         JSValueRef value(CYGetProperty(context, _this, cyi_s));
1795         if (!JSValueIsUndefined(context, value)) {
1796             CYPool pool;
1797             return CYCastJSValue(context, pool.strcat("&", CYPoolCCYON(pool, context, value, objects), NULL));
1798         }
1799     } catch (const CYException &e) {
1800         // XXX: it might be interesting to include this error
1801     }
1802
1803     CYLocalPool pool;
1804     std::ostringstream str;
1805
1806     sig::Pointer type(*internal->type_->type_);
1807
1808     CYOptions options;
1809     CYOutput output(*str.rdbuf(), options);
1810     (new(pool) CYTypeExpression(CYDecodeType(pool, &type)))->Output(output, CYNoFlags);
1811
1812     str << "(" << internal->value_ << ")";
1813     std::string value(str.str());
1814     return CYCastJSValue(context, CYJSString(CYUTF8String(value.c_str(), value.size())));
1815 } CYCatch(NULL) }
1816
1817 static JSValueRef CString_getProperty_length(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1818     CString *internal(reinterpret_cast<CString *>(JSObjectGetPrivate(object)));
1819     return CYCastJSValue(context, strlen(internal->value_));
1820 } CYCatch(NULL) }
1821
1822 static JSValueRef CString_getProperty_$cyt(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1823     return CYMakeType(context, sig::String());
1824 } CYCatch(NULL) }
1825
1826 static JSValueRef CArray_getProperty_$cyt(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1827     CArray *internal(reinterpret_cast<CArray *>(JSObjectGetPrivate(object)));
1828     sig::Array type(*internal->type_->type_, internal->length_);
1829     return CYMakeType(context, type);
1830 } CYCatch(NULL) }
1831
1832 static JSValueRef Pointer_getProperty_$cyt(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1833     Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(object)));
1834     sig::Pointer type(*internal->type_->type_);
1835     return CYMakeType(context, type);
1836 } CYCatch(NULL) }
1837
1838 static JSValueRef CString_callAsFunction_toCYON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1839     CString *internal(reinterpret_cast<CString *>(JSObjectGetPrivate(_this)));
1840     const char *string(internal->value_);
1841     std::ostringstream str;
1842     if (string == NULL)
1843         str << "NULL";
1844     else {
1845         str << "&";
1846         CYStringify(str, string, strlen(string), CYStringifyModeNative);
1847     }
1848     std::string value(str.str());
1849     return CYCastJSValue(context, CYJSString(CYUTF8String(value.c_str(), value.size())));
1850 } CYCatch(NULL) }
1851
1852 static JSValueRef CString_callAsFunction_toString(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1853     CString *internal(reinterpret_cast<CString *>(JSObjectGetPrivate(_this)));
1854     return CYCastJSValue(context, internal->value_);
1855 } CYCatch(NULL) }
1856
1857 static JSValueRef Functor_getProperty_$cyt(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1858     cy::Functor *internal(reinterpret_cast<cy::Functor *>(JSObjectGetPrivate(object)));
1859     CYPool pool;
1860     sig::Function type(internal->variadic_);
1861     sig::Copy(pool, type.signature, internal->signature_);
1862     return CYMakeType(context, type);
1863 } CYCatch(NULL) }
1864
1865 static JSValueRef Type_getProperty_alignment(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1866     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
1867     return CYCastJSValue(context, internal->GetFFI()->alignment);
1868 } CYCatch(NULL) }
1869
1870 static JSValueRef Type_getProperty_name(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1871     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
1872     return CYCastJSValue(context, internal->type_->GetName());
1873 } CYCatch(NULL) }
1874
1875 static JSValueRef Type_getProperty_size(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1876     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
1877     return CYCastJSValue(context, internal->GetFFI()->size);
1878 } CYCatch(NULL) }
1879
1880 static JSValueRef Type_callAsFunction_toString(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1881     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1882     CYPool pool;
1883     const char *type(sig::Unparse(pool, internal->type_));
1884     return CYCastJSValue(context, CYJSString(type));
1885 } CYCatch(NULL) }
1886
1887 static JSValueRef Type_callAsFunction_toCYON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1888     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1889     CYLocalPool pool;
1890     std::stringbuf out;
1891     CYOptions options;
1892     CYOutput output(out, options);
1893     output.pretty_ = true;
1894     (new(pool) CYTypeExpression(CYDecodeType(pool, internal->type_->Copy(pool, ""))))->Output(output, CYNoFlags);
1895     return CYCastJSValue(context, CYJSString(out.str().c_str()));
1896 } CYCatch(NULL) }
1897
1898 static JSStaticFunction All_staticFunctions[2] = {
1899     {"cy$complete", &All_complete_callAsFunction, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1900     {NULL, NULL, 0}
1901 };
1902
1903 static JSStaticFunction CArray_staticFunctions[3] = {
1904     {"toPointer", &CArray_callAsFunction_toPointer, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1905     {"valueOf", &CArray_callAsFunction_valueOf, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1906     {NULL, NULL, 0}
1907 };
1908
1909 static JSStaticValue CArray_staticValues[2] = {
1910     {"$cyt", &CArray_getProperty_$cyt, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1911     {NULL, NULL, NULL, 0}
1912 };
1913
1914 static JSStaticFunction CString_staticFunctions[5] = {
1915     {"toCYON", &CString_callAsFunction_toCYON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1916     {"toPointer", &CString_callAsFunction_toPointer, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1917     {"toString", &CString_callAsFunction_toString, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1918     {"valueOf", &CString_callAsFunction_toString, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1919     {NULL, NULL, 0}
1920 };
1921
1922 static JSStaticValue CString_staticValues[3] = {
1923     {"length", &CString_getProperty_length, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1924     {"$cyt", &CString_getProperty_$cyt, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1925     {NULL, NULL, NULL, 0}
1926 };
1927
1928 static JSStaticFunction Pointer_staticFunctions[4] = {
1929     {"toCYON", &Pointer_callAsFunction_toCYON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1930     {"toPointer", &Pointer_callAsFunction_toPointer, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1931     {"valueOf", &Pointer_callAsFunction_valueOf, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1932     {NULL, NULL, 0}
1933 };
1934
1935 static JSStaticValue Pointer_staticValues[2] = {
1936     {"$cyt", &Pointer_getProperty_$cyt, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1937     {NULL, NULL, NULL, 0}
1938 };
1939
1940 static JSStaticFunction Struct_staticFunctions[2] = {
1941     {"$cya", &Struct_callAsFunction_$cya, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1942     {NULL, NULL, 0}
1943 };
1944
1945 static JSStaticValue Struct_staticValues[2] = {
1946     {"$cyt", &Struct_getProperty_$cyt, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1947     {NULL, NULL, NULL, 0}
1948 };
1949
1950 static JSStaticFunction Functor_staticFunctions[4] = {
1951     {"$cya", &Functor_callAsFunction_$cya, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1952     {"toCYON", &Functor_callAsFunction_toCYON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1953     {"valueOf", &Functor_callAsFunction_valueOf, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1954     {NULL, NULL, 0}
1955 };
1956
1957 static JSStaticValue Functor_staticValues[2] = {
1958     {"$cyt", &Functor_getProperty_$cyt, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1959     {NULL, NULL, NULL, 0}
1960 };
1961
1962 static JSStaticValue Type_staticValues[4] = {
1963     {"alignment", &Type_getProperty_alignment, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1964     {"name", &Type_getProperty_name, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1965     {"size", &Type_getProperty_size, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1966     {NULL, NULL, NULL, 0}
1967 };
1968
1969 static JSStaticFunction Type_staticFunctions[10] = {
1970     {"arrayOf", &Type_callAsFunction_arrayOf, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1971     {"blockWith", &Type_callAsFunction_blockWith, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1972     {"constant", &Type_callAsFunction_constant, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1973     {"enumFor", &Type_callAsFunction_enumFor, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1974     {"functionWith", &Type_callAsFunction_functionWith, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1975     {"pointerTo", &Type_callAsFunction_pointerTo, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1976     {"withName", &Type_callAsFunction_withName, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1977     {"toCYON", &Type_callAsFunction_toCYON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1978     {"toString", &Type_callAsFunction_toString, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1979     {NULL, NULL, 0}
1980 };
1981
1982 _visible void CYSetArgs(const char *argv0, const char *script, int argc, const char *argv[]) {
1983     JSContextRef context(CYGetJSContext());
1984     JSValueRef args[argc + 2];
1985     for (int i(0); i != argc; ++i)
1986         args[i + 2] = CYCastJSValue(context, argv[i]);
1987
1988     size_t offset;
1989     if (script == NULL)
1990         offset = 1;
1991     else {
1992         offset = 0;
1993         args[1] = CYCastJSValue(context, CYJSString(script));
1994     }
1995
1996     args[offset] = CYCastJSValue(context, CYJSString(argv0));
1997
1998     CYSetProperty(context, CYGetCachedObject(context, CYJSString("System")), CYJSString("args"), CYObjectMakeArray(context, argc, args + 2));
1999     CYSetProperty(context, CYGetCachedObject(context, CYJSString("process")), CYJSString("argv"), CYObjectMakeArray(context, argc + 2 - offset, args + offset));
2000 }
2001
2002 JSObjectRef CYGetGlobalObject(JSContextRef context) {
2003     return JSContextGetGlobalObject(context);
2004 }
2005
2006 // XXX: this is neither exceptin safe nor even terribly sane
2007 class ExecutionHandle {
2008   private:
2009     JSContextRef context_;
2010     std::vector<void *> handles_;
2011
2012   public:
2013     ExecutionHandle(JSContextRef context) :
2014         context_(context)
2015     {
2016         handles_.resize(GetHooks().size());
2017         for (size_t i(0); i != GetHooks().size(); ++i) {
2018             CYHook *hook(GetHooks()[i]);
2019             if (hook->ExecuteStart != NULL)
2020                 handles_[i] = (*hook->ExecuteStart)(context_);
2021             else
2022                 handles_[i] = NULL;
2023         }
2024     }
2025
2026     ~ExecutionHandle() {
2027         for (size_t i(GetHooks().size()); i != 0; --i) {
2028             CYHook *hook(GetHooks()[i-1]);
2029             if (hook->ExecuteEnd != NULL)
2030                 (*hook->ExecuteEnd)(context_, handles_[i-1]);
2031         }
2032     }
2033 };
2034
2035 #ifndef __ANDROID__
2036 static volatile bool cancel_;
2037
2038 static bool CYShouldTerminate(JSContextRef context, void *arg) {
2039     return cancel_;
2040 }
2041 #endif
2042
2043 _visible const char *CYExecute(JSContextRef context, CYPool &pool, CYUTF8String code) {
2044     ExecutionHandle handle(context);
2045
2046 #ifndef __ANDROID__
2047     cancel_ = false;
2048     if (&JSContextGroupSetExecutionTimeLimit != NULL)
2049         JSContextGroupSetExecutionTimeLimit(JSContextGetGroup(context), 0.5, &CYShouldTerminate, NULL);
2050 #endif
2051
2052     try {
2053         JSValueRef result(_jsccall(JSEvaluateScript, context, CYJSString(code), NULL, NULL, 0));
2054         if (JSValueIsUndefined(context, result))
2055             return NULL;
2056
2057         std::set<void *> objects;
2058         const char *json(_jsccall(CYPoolCCYON, pool, context, result, objects));
2059         CYSetProperty(context, CYGetGlobalObject(context), Result_, result);
2060
2061         return json;
2062     } catch (const CYException &error) {
2063         return pool.strcat("throw ", error.PoolCString(pool), NULL);
2064     }
2065 }
2066
2067 #ifndef __ANDROID__
2068 _visible void CYCancel() {
2069     cancel_ = true;
2070 }
2071 #endif
2072
2073 const char *CYPoolLibraryPath(CYPool &pool);
2074
2075 static bool initialized_ = false;
2076
2077 void CYInitializeDynamic() {
2078     if (!initialized_)
2079         initialized_ = true;
2080     else return;
2081
2082     CYPool pool;
2083     const char *db(pool.strcat(CYPoolLibraryPath(pool), "/libcycript.db", NULL));
2084     _sqlcall(sqlite3_open_v2(db, &database_, SQLITE_OPEN_READONLY, NULL));
2085
2086     JSObjectMakeArray$ = reinterpret_cast<JSObjectRef (*)(JSContextRef, size_t, const JSValueRef[], JSValueRef *)>(dlsym(RTLD_DEFAULT, "JSObjectMakeArray"));
2087     JSSynchronousGarbageCollectForDebugging$ = reinterpret_cast<void (*)(JSContextRef)>(dlsym(RTLD_DEFAULT, "JSSynchronousGarbageCollectForDebugging"));
2088
2089     JSClassDefinition definition;
2090
2091     definition = kJSClassDefinitionEmpty;
2092     definition.className = "All";
2093     definition.staticFunctions = All_staticFunctions;
2094     definition.hasProperty = &All_hasProperty;
2095     definition.getProperty = &All_getProperty;
2096     definition.getPropertyNames = &All_getPropertyNames;
2097     All_ = JSClassCreate(&definition);
2098
2099     definition = kJSClassDefinitionEmpty;
2100     definition.className = "Context";
2101     definition.finalize = &CYFinalize;
2102     CYPrivate<Context>::Class_ = JSClassCreate(&definition);
2103
2104     definition = kJSClassDefinitionEmpty;
2105     definition.className = "CArray";
2106     definition.staticFunctions = CArray_staticFunctions;
2107     definition.staticValues = CArray_staticValues;
2108     definition.getProperty = &CArray_getProperty;
2109     definition.setProperty = &CArray_setProperty;
2110     definition.finalize = &CYFinalize;
2111     CYPrivate<CArray>::Class_ = JSClassCreate(&definition);
2112
2113     definition = kJSClassDefinitionEmpty;
2114     definition.className = "CString";
2115     definition.staticFunctions = CString_staticFunctions;
2116     definition.staticValues = CString_staticValues;
2117     definition.getProperty = &CString_getProperty;
2118     definition.setProperty = &CString_setProperty;
2119     definition.finalize = &CYFinalize;
2120     CYPrivate<CString>::Class_ = JSClassCreate(&definition);
2121
2122     definition = kJSClassDefinitionEmpty;
2123     definition.className = "Functor";
2124     definition.staticFunctions = Functor_staticFunctions;
2125     definition.staticValues = Functor_staticValues;
2126     definition.callAsFunction = &Functor_callAsFunction;
2127     definition.finalize = &CYFinalize;
2128     cy::Functor::Class_ = JSClassCreate(&definition);
2129
2130     definition = kJSClassDefinitionEmpty;
2131     definition.className = "Pointer";
2132     definition.staticFunctions = Pointer_staticFunctions;
2133     definition.staticValues = Pointer_staticValues;
2134     definition.callAsFunction = &Pointer_callAsFunction;
2135     definition.getProperty = &Pointer_getProperty;
2136     definition.setProperty = &Pointer_setProperty;
2137     definition.finalize = &CYFinalize;
2138     CYPrivate<Pointer>::Class_ = JSClassCreate(&definition);
2139
2140     definition = kJSClassDefinitionEmpty;
2141     definition.className = "Root";
2142     definition.finalize = &CYFinalize;
2143     CYPrivate<CYRoot>::Class_ = JSClassCreate(&definition);
2144
2145     definition = kJSClassDefinitionEmpty;
2146     definition.className = "Struct";
2147     definition.staticFunctions = Struct_staticFunctions;
2148     definition.staticValues = Struct_staticValues;
2149     definition.getProperty = &Struct_getProperty;
2150     definition.setProperty = &Struct_setProperty;
2151     definition.getPropertyNames = &Struct_getPropertyNames;
2152     definition.finalize = &CYFinalize;
2153     CYPrivate<Struct_privateData>::Class_ = JSClassCreate(&definition);
2154
2155     definition = kJSClassDefinitionEmpty;
2156     definition.className = "Type";
2157     definition.staticValues = Type_staticValues;
2158     definition.staticFunctions = Type_staticFunctions;
2159     definition.callAsFunction = &Type_callAsFunction;
2160     definition.callAsConstructor = &Type_callAsConstructor;
2161     definition.finalize = &CYFinalize;
2162     CYPrivate<Type_privateData>::Class_ = JSClassCreate(&definition);
2163
2164     definition = kJSClassDefinitionEmpty;
2165     definition.className = "Global";
2166     //definition.getProperty = &Global_getProperty;
2167     Global_ = JSClassCreate(&definition);
2168
2169     Array_s = JSStringCreateWithUTF8CString("Array");
2170     constructor_s = JSStringCreateWithUTF8CString("constructor");
2171     cy_s = JSStringCreateWithUTF8CString("$cy");
2172     cyi_s = JSStringCreateWithUTF8CString("$cyi");
2173     cyt_s = JSStringCreateWithUTF8CString("$cyt");
2174     length_s = JSStringCreateWithUTF8CString("length");
2175     message_s = JSStringCreateWithUTF8CString("message");
2176     name_s = JSStringCreateWithUTF8CString("name");
2177     pop_s = JSStringCreateWithUTF8CString("pop");
2178     prototype_s = JSStringCreateWithUTF8CString("prototype");
2179     push_s = JSStringCreateWithUTF8CString("push");
2180     splice_s = JSStringCreateWithUTF8CString("splice");
2181     toCYON_s = JSStringCreateWithUTF8CString("toCYON");
2182     toJSON_s = JSStringCreateWithUTF8CString("toJSON");
2183     toPointer_s = JSStringCreateWithUTF8CString("toPointer");
2184     toString_s = JSStringCreateWithUTF8CString("toString");
2185     weak_s = JSStringCreateWithUTF8CString("weak");
2186
2187     Result_ = JSStringCreateWithUTF8CString("_");
2188
2189     for (CYHook *hook : GetHooks())
2190         if (hook->Initialize != NULL)
2191             (*hook->Initialize)();
2192 }
2193
2194 void CYThrow(JSContextRef context, JSValueRef value) {
2195     if (value != NULL)
2196         throw CYJSError(context, value);
2197 }
2198
2199 const char *CYJSError::PoolCString(CYPool &pool) const {
2200     std::set<void *> objects;
2201     // XXX: this used to be CYPoolCString
2202     return CYPoolCCYON(pool, context_, value_, objects);
2203 }
2204
2205 JSValueRef CYJSError::CastJSValue(JSContextRef context, const char *name) const {
2206     // XXX: what if the context is different? or the name? I dunno. ("epic" :/)
2207     return value_;
2208 }
2209
2210 JSValueRef CYCastJSError(JSContextRef context, const char *name, const char *message) {
2211     JSObjectRef Error(CYGetCachedObject(context, CYJSString(name)));
2212     JSValueRef arguments[1] = {CYCastJSValue(context, message)};
2213     return _jsccall(JSObjectCallAsConstructor, context, Error, 1, arguments);
2214 }
2215
2216 JSValueRef CYPoolError::CastJSValue(JSContextRef context, const char *name) const {
2217     return CYCastJSError(context, name, message_);
2218 }
2219
2220 CYJSError::CYJSError(JSContextRef context, const char *format, ...) {
2221     _assert(context != NULL);
2222
2223     CYPool pool;
2224
2225     va_list args;
2226     va_start(args, format);
2227     // XXX: there might be a beter way to think about this
2228     const char *message(pool.vsprintf(64, format, args));
2229     va_end(args);
2230
2231     value_ = CYCastJSError(context, "Error", message);
2232 }
2233
2234 JSGlobalContextRef CYGetJSContext(JSContextRef context) {
2235     return reinterpret_cast<Context *>(JSObjectGetPrivate(CYCastJSObject(context, CYGetProperty(context, CYGetGlobalObject(context), cy_s))))->context_;
2236 }
2237
2238 #ifdef __ANDROID__
2239 char *CYPoolLibraryPath_(CYPool &pool) {
2240     FILE *maps(fopen("/proc/self/maps", "r"));
2241     struct F { FILE *f; F(FILE *f) : f(f) {}
2242         ~F() { fclose(f); } } f(maps);
2243
2244     size_t function(reinterpret_cast<size_t>(&CYPoolLibraryPath));
2245
2246     for (;;) {
2247         size_t start; size_t end; char flags[8]; unsigned long long offset;
2248         int major; int minor; unsigned long long inode; char file[1024];
2249         int count(fscanf(maps, "%zx-%zx %7s %llx %x:%x %llu%[ ]%1024[^\n]\n",
2250             &start, &end, flags, &offset, &major, &minor, &inode, file, file));
2251         if (count < 8) break; else if (start <= function && function < end)
2252             return pool.strdup(file);
2253     }
2254
2255     _assert(false);
2256 }
2257 #else
2258 char *CYPoolLibraryPath_(CYPool &pool) {
2259     Dl_info addr;
2260     _assert(dladdr(reinterpret_cast<void *>(&CYPoolLibraryPath), &addr) != 0);
2261     return pool.strdup(addr.dli_fname);
2262 }
2263 #endif
2264
2265 const char *CYPoolLibraryPath(CYPool &pool) {
2266     char *lib(CYPoolLibraryPath_(pool));
2267
2268     char *slash(strrchr(lib, '/'));
2269     if (slash == NULL)
2270         return ".";
2271     *slash = '\0';
2272
2273     slash = strrchr(lib, '/');
2274     if (slash != NULL) {
2275         if (strcmp(slash, "/.libs") == 0)
2276             *slash = '\0';
2277     } else if (strcmp(lib, ".libs") == 0)
2278         return ".";
2279
2280     return lib;
2281 }
2282
2283 static JSValueRef require_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
2284     _assert(count == 1);
2285     CYPool pool;
2286
2287     CYUTF8String name(CYPoolUTF8String(pool, context, CYJSString(context, arguments[0])));
2288     if (memchr(name.data, '/', name.size) == NULL && (
2289 #ifdef __APPLE__
2290         dlopen(pool.strcat("/System/Library/Frameworks/", name.data, ".framework/", name.data, NULL), RTLD_LAZY | RTLD_GLOBAL) != NULL ||
2291         dlopen(pool.strcat("/System/Library/PrivateFrameworks/", name.data, ".framework/", name.data, NULL), RTLD_LAZY | RTLD_GLOBAL) != NULL ||
2292 #endif
2293     false))
2294         return CYJSUndefined(context);
2295
2296     CYJSString path;
2297     CYUTF8String code;
2298
2299     sqlite3_stmt *statement;
2300
2301     _sqlcall(sqlite3_prepare(database_,
2302         "select "
2303             "\"module\".\"code\", "
2304             "\"module\".\"flags\" "
2305         "from \"module\" "
2306         "where"
2307             " \"module\".\"name\" = ?"
2308         " limit 1"
2309     , -1, &statement, NULL));
2310
2311     _sqlcall(sqlite3_bind_text(statement, 1, name.data, name.size, SQLITE_STATIC));
2312
2313     if (_sqlcall(sqlite3_step(statement)) != SQLITE_DONE) {
2314         code.data = static_cast<const char *>(sqlite3_column_blob(statement, 0));
2315         code.size = sqlite3_column_bytes(statement, 0);
2316         path = CYJSString(name);
2317         code = CYPoolUTF8String(pool, code);
2318     } else {
2319         JSObjectRef resolve(CYCastJSObject(context, CYGetProperty(context, object, CYJSString("resolve"))));
2320         path = CYJSString(context, CYCallAsFunction(context, resolve, NULL, 1, arguments));
2321     }
2322
2323     _sqlcall(sqlite3_finalize(statement));
2324
2325     CYJSString property("exports");
2326
2327     JSObjectRef modules(CYGetCachedObject(context, CYJSString("modules")));
2328     JSValueRef cache(CYGetProperty(context, modules, path));
2329
2330     JSValueRef result;
2331     if (!JSValueIsUndefined(context, cache)) {
2332         JSObjectRef module(CYCastJSObject(context, cache));
2333         result = CYGetProperty(context, module, property);
2334     } else {
2335         if (code.data == NULL) {
2336             code = CYPoolFileUTF8String(pool, CYPoolCString(pool, context, path));
2337             _assert(code.data != NULL);
2338         }
2339
2340         size_t length(name.size);
2341         if (length >= 5 && strncmp(name.data + length - 5, ".json", 5) == 0) {
2342             JSObjectRef JSON(CYGetCachedObject(context, CYJSString("JSON")));
2343             JSObjectRef parse(CYCastJSObject(context, CYGetProperty(context, JSON, CYJSString("parse"))));
2344             JSValueRef arguments[1] = { CYCastJSValue(context, CYJSString(code)) };
2345             result = CYCallAsFunction(context, parse, JSON, 1, arguments);
2346         } else {
2347             JSObjectRef module(JSObjectMake(context, NULL, NULL));
2348             CYSetProperty(context, modules, path, module);
2349
2350             JSObjectRef exports(JSObjectMake(context, NULL, NULL));
2351             CYSetProperty(context, module, property, exports);
2352
2353             std::stringstream wrap;
2354             wrap << "(function (exports, require, module, __filename) { " << code << "\n});";
2355             code = CYPoolCode(pool, *wrap.rdbuf());
2356
2357             JSValueRef value(_jsccall(JSEvaluateScript, context, CYJSString(code), NULL, NULL, 0));
2358             JSObjectRef function(CYCastJSObject(context, value));
2359
2360             JSValueRef arguments[4] = { exports, object, module, CYCastJSValue(context, path) };
2361             CYCallAsFunction(context, function, NULL, 4, arguments);
2362             result = CYGetProperty(context, module, property);
2363         }
2364     }
2365
2366     return result;
2367 } CYCatch(NULL) }
2368
2369 static bool CYRunScript(JSGlobalContextRef context, const char *path) {
2370     CYPool pool;
2371     CYUTF8String code(CYPoolFileUTF8String(pool, pool.strcat(CYPoolLibraryPath(pool), path, NULL)));
2372     if (code.data == NULL)
2373         return false;
2374
2375     code = CYPoolCode(pool, code);
2376     _jsccall(JSEvaluateScript, context, CYJSString(code), NULL, NULL, 0);
2377     return true;
2378 }
2379
2380 extern "C" void CYDestroyWeak(JSWeakObjectMapRef weak, void *data) {
2381 }
2382
2383 extern "C" void CYSetupContext(JSGlobalContextRef context) {
2384     CYInitializeDynamic();
2385
2386     JSObjectRef global(CYGetGlobalObject(context));
2387
2388     JSObjectRef cy(CYPrivate<Context>::Make(context, context));
2389     CYSetProperty(context, global, cy_s, cy, kJSPropertyAttributeDontEnum);
2390
2391 /* Cache Globals {{{ */
2392     JSObjectRef Array(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Array"))));
2393     CYSetProperty(context, cy, CYJSString("Array"), Array);
2394
2395     JSObjectRef Array_prototype(CYCastJSObject(context, CYGetProperty(context, Array, prototype_s)));
2396     CYSetProperty(context, cy, CYJSString("Array_prototype"), Array_prototype);
2397
2398     JSObjectRef Boolean(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Boolean"))));
2399     CYSetProperty(context, cy, CYJSString("Boolean"), Boolean);
2400
2401     JSObjectRef Boolean_prototype(CYCastJSObject(context, CYGetProperty(context, Boolean, prototype_s)));
2402     CYSetProperty(context, cy, CYJSString("Boolean_prototype"), Boolean_prototype);
2403
2404     JSObjectRef Error(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Error"))));
2405     CYSetProperty(context, cy, CYJSString("Error"), Error);
2406
2407     JSObjectRef Function(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Function"))));
2408     CYSetProperty(context, cy, CYJSString("Function"), Function);
2409
2410     JSObjectRef Function_prototype(CYCastJSObject(context, CYGetProperty(context, Function, prototype_s)));
2411     CYSetProperty(context, cy, CYJSString("Function_prototype"), Function_prototype);
2412
2413     JSObjectRef JSON(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("JSON"))));
2414     CYSetProperty(context, cy, CYJSString("JSON"), JSON);
2415
2416     JSObjectRef Number(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Number"))));
2417     CYSetProperty(context, cy, CYJSString("Number"), Number);
2418
2419     JSObjectRef Number_prototype(CYCastJSObject(context, CYGetProperty(context, Number, prototype_s)));
2420     CYSetProperty(context, cy, CYJSString("Number_prototype"), Number_prototype);
2421
2422     JSObjectRef Object(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Object"))));
2423     CYSetProperty(context, cy, CYJSString("Object"), Object);
2424
2425     JSObjectRef Object_prototype(CYCastJSObject(context, CYGetProperty(context, Object, prototype_s)));
2426     CYSetProperty(context, cy, CYJSString("Object_prototype"), Object_prototype);
2427
2428     JSObjectRef String(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("String"))));
2429     CYSetProperty(context, cy, CYJSString("String"), String);
2430
2431     JSObjectRef String_prototype(CYCastJSObject(context, CYGetProperty(context, String, prototype_s)));
2432     CYSetProperty(context, cy, CYJSString("String_prototype"), String_prototype);
2433
2434     JSObjectRef SyntaxError(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("SyntaxError"))));
2435     CYSetProperty(context, cy, CYJSString("SyntaxError"), SyntaxError);
2436 /* }}} */
2437
2438     CYSetProperty(context, Array_prototype, toCYON_s, &Array_callAsFunction_toCYON, kJSPropertyAttributeDontEnum);
2439     CYSetProperty(context, String_prototype, toCYON_s, &String_callAsFunction_toCYON, kJSPropertyAttributeDontEnum);
2440
2441     JSObjectRef cycript(JSObjectMake(context, NULL, NULL));
2442     CYSetProperty(context, global, CYJSString("Cycript"), cycript);
2443     CYSetProperty(context, cycript, CYJSString("compile"), &Cycript_compile_callAsFunction);
2444     CYSetProperty(context, cycript, CYJSString("gc"), &Cycript_gc_callAsFunction);
2445
2446     JSObjectRef CArray(JSObjectMakeConstructor(context, CYPrivate<::CArray>::Class_, &CArray_new));
2447     CYSetPrototype(context, CYCastJSObject(context, CYGetProperty(context, CArray, prototype_s)), Array_prototype);
2448     CYSetProperty(context, cycript, CYJSString("CArray"), CArray);
2449
2450     JSObjectRef CString(JSObjectMakeConstructor(context, CYPrivate<::CString>::Class_, &CString_new));
2451     CYSetPrototype(context, CYCastJSObject(context, CYGetProperty(context, CString, prototype_s)), String_prototype);
2452     CYSetProperty(context, cycript, CYJSString("CString"), CString);
2453
2454     JSObjectRef Functor(JSObjectMakeConstructor(context, cy::Functor::Class_, &Functor_new));
2455     JSObjectRef Functor_prototype(CYCastJSObject(context, CYGetProperty(context, Functor, prototype_s)));
2456     CYSetPrototype(context, Functor_prototype, Function_prototype);
2457     CYSetProperty(context, cy, CYJSString("Functor_prototype"), Functor_prototype);
2458     CYSetProperty(context, cycript, CYJSString("Functor"), Functor);
2459
2460     CYSetProperty(context, cycript, CYJSString("Pointer"), JSObjectMakeConstructor(context, CYPrivate<Pointer>::Class_, &Pointer_new));
2461     CYSetProperty(context, cycript, CYJSString("Type"), JSObjectMakeConstructor(context, CYPrivate<Type_privateData>::Class_, &Type_new));
2462
2463     JSObjectRef modules(JSObjectMake(context, NULL, NULL));
2464     CYSetProperty(context, cy, CYJSString("modules"), modules);
2465
2466     JSObjectRef all(JSObjectMake(context, All_, NULL));
2467     CYSetProperty(context, cycript, CYJSString("all"), all);
2468
2469     JSObjectRef cache(JSObjectMake(context, NULL, NULL));
2470     CYSetProperty(context, cy, CYJSString("cache"), cache);
2471     CYSetPrototype(context, cache, all);
2472
2473     JSObjectRef alls(_jsccall(JSObjectCallAsConstructor, context, Array, 0, NULL));
2474     CYSetProperty(context, cycript, CYJSString("alls"), alls);
2475
2476     if (true) {
2477         JSObjectRef last(NULL), curr(global);
2478
2479         goto next; for (JSValueRef next;;) {
2480             if (JSValueIsNull(context, next))
2481                 break;
2482             last = curr;
2483             curr = CYCastJSObject(context, next);
2484           next:
2485             next = JSObjectGetPrototype(context, curr);
2486         }
2487
2488         CYSetPrototype(context, last, cache);
2489     }
2490
2491 #ifdef __APPLE__
2492     if (&JSWeakObjectMapCreate != NULL) {
2493         JSWeakObjectMapRef weak(JSWeakObjectMapCreate(context, NULL, &CYDestroyWeak));
2494         CYSetProperty(context, cy, weak_s, CYCastJSValue(context, reinterpret_cast<uintptr_t>(weak)));
2495     }
2496 #endif
2497
2498     CYSetProperty(context, String_prototype, cyt_s, CYMakeType(context, sig::String()), kJSPropertyAttributeDontEnum);
2499
2500     CYSetProperty(context, cache, CYJSString("dlerror"), CYMakeFunctor(context, "dlerror", "*"), kJSPropertyAttributeDontEnum);
2501     CYSetProperty(context, cache, CYJSString("RTLD_DEFAULT"), CYCastJSValue(context, reinterpret_cast<intptr_t>(RTLD_DEFAULT)), kJSPropertyAttributeDontEnum);
2502     CYSetProperty(context, cache, CYJSString("dlsym"), CYMakeFunctor(context, "dlsym", "^v^v*"), kJSPropertyAttributeDontEnum);
2503
2504     CYSetProperty(context, cache, CYJSString("NULL"), CYJSNull(context), kJSPropertyAttributeDontEnum);
2505
2506     CYSetProperty(context, cache, CYJSString("bool"), CYMakeType(context, sig::Primitive<bool>()), kJSPropertyAttributeDontEnum);
2507     CYSetProperty(context, cache, CYJSString("char"), CYMakeType(context, sig::Primitive<char>()), kJSPropertyAttributeDontEnum);
2508     CYSetProperty(context, cache, CYJSString("schar"), CYMakeType(context, sig::Primitive<signed char>()), kJSPropertyAttributeDontEnum);
2509     CYSetProperty(context, cache, CYJSString("uchar"), CYMakeType(context, sig::Primitive<unsigned char>()), kJSPropertyAttributeDontEnum);
2510
2511     CYSetProperty(context, cache, CYJSString("short"), CYMakeType(context, sig::Primitive<short>()), kJSPropertyAttributeDontEnum);
2512     CYSetProperty(context, cache, CYJSString("int"), CYMakeType(context, sig::Primitive<int>()), kJSPropertyAttributeDontEnum);
2513     CYSetProperty(context, cache, CYJSString("long"), CYMakeType(context, sig::Primitive<long>()), kJSPropertyAttributeDontEnum);
2514     CYSetProperty(context, cache, CYJSString("longlong"), CYMakeType(context, sig::Primitive<long long>()), kJSPropertyAttributeDontEnum);
2515
2516     CYSetProperty(context, cache, CYJSString("ushort"), CYMakeType(context, sig::Primitive<unsigned short>()), kJSPropertyAttributeDontEnum);
2517     CYSetProperty(context, cache, CYJSString("uint"), CYMakeType(context, sig::Primitive<unsigned int>()), kJSPropertyAttributeDontEnum);
2518     CYSetProperty(context, cache, CYJSString("ulong"), CYMakeType(context, sig::Primitive<unsigned long>()), kJSPropertyAttributeDontEnum);
2519     CYSetProperty(context, cache, CYJSString("ulonglong"), CYMakeType(context, sig::Primitive<unsigned long long>()), kJSPropertyAttributeDontEnum);
2520
2521 #ifdef __SIZEOF_INT128__
2522     CYSetProperty(context, cache, CYJSString("int128"), CYMakeType(context, sig::Primitive<__int128>()), kJSPropertyAttributeDontEnum);
2523     CYSetProperty(context, cache, CYJSString("uint128"), CYMakeType(context, sig::Primitive<unsigned __int128>()), kJSPropertyAttributeDontEnum);
2524 #endif
2525
2526     CYSetProperty(context, cache, CYJSString("float"), CYMakeType(context, sig::Primitive<float>()), kJSPropertyAttributeDontEnum);
2527     CYSetProperty(context, cache, CYJSString("double"), CYMakeType(context, sig::Primitive<double>()), kJSPropertyAttributeDontEnum);
2528
2529     CYSetProperty(context, global, CYJSString("require"), &require_callAsFunction, kJSPropertyAttributeDontEnum);
2530
2531     JSObjectRef System(JSObjectMake(context, NULL, NULL));
2532     CYSetProperty(context, all, CYJSString("system"), System);
2533     System = CYCastJSObject(context, CYGetProperty(context, global, CYJSString("system")));
2534     CYSetProperty(context, cy, CYJSString("System"), System);
2535
2536     JSObjectRef process(JSObjectMake(context, NULL, NULL));
2537     CYSetProperty(context, global, CYJSString("process"), process);
2538     CYSetProperty(context, cy, CYJSString("process"), process);
2539
2540     CYSetProperty(context, System, CYJSString("args"), CYJSNull(context));
2541     CYSetProperty(context, System, CYJSString("print"), &System_print);
2542
2543     CYSetProperty(context, global, CYJSString("global"), global);
2544     CYSetProperty(context, global, CYJSString("print"), &Global_print);
2545
2546     for (CYHook *hook : GetHooks())
2547         if (hook->SetupContext != NULL)
2548             (*hook->SetupContext)(context);
2549
2550     CYArrayPush(context, alls, cycript);
2551
2552     CYRunScript(context, "/libcycript.cy");
2553 }
2554
2555 static JSGlobalContextRef context_;
2556
2557 _visible JSGlobalContextRef CYGetJSContext() {
2558     CYInitializeDynamic();
2559
2560     if (context_ == NULL) {
2561         context_ = JSGlobalContextCreate(Global_);
2562         CYSetupContext(context_);
2563     }
2564
2565     return context_;
2566 }
2567
2568 _visible void CYDestroyContext() {
2569     if (context_ == NULL)
2570         return;
2571     JSGlobalContextRelease(context_);
2572     context_ = NULL;
2573 }