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