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     JSObjectRef Array(CYGetCachedObject(context, CYJSString("Array")));
 185     bool wat(length == 1 && JSValueGetType(context, values[0]) == kJSTypeNumber);
 186     JSValueRef value(CYCallAsFunction(context, Array, NULL, wat ? 0 : length, values));
 187     JSObjectRef object(CYCastJSObject(context, value));
 188     if (wat) CYArrayPush(context, object, 1, values);
 189     return object;
 190 }
 191
 192 static JSClassRef All_;
 193 JSClassRef cy::Functor::Class_;
 194 static JSClassRef Global_;
 195
 196 JSStringRef Array_s;
 197 JSStringRef constructor_s;
 198 JSStringRef cy_s;
 199 JSStringRef cyi_s;
 200 JSStringRef cyt_s;
 201 JSStringRef length_s;
 202 JSStringRef message_s;
 203 JSStringRef name_s;
 204 JSStringRef pop_s;
 205 JSStringRef prototype_s;
 206 JSStringRef push_s;
 207 JSStringRef splice_s;
 208 JSStringRef toCYON_s;
 209 JSStringRef toJSON_s;
 210 JSStringRef toPointer_s;
 211 JSStringRef toString_s;
 212 JSStringRef weak_s;
 213
 214 static sqlite3 *database_;
 215
 216 static JSStringRef Result_;
 217
 218 void CYFinalize(JSObjectRef object) {
 219     CYData *internal(reinterpret_cast<CYData *>(JSObjectGetPrivate(object)));
 220     _assert(internal->count_ != _not(unsigned));
 221     if (--internal->count_ == 0)
 222         delete internal;
 223 }
 224
 225 sig::Type *Structor_(CYPool &pool, sig::Aggregate *aggregate) {
 226     //_assert(false);
 227     return aggregate;
 228 }
 229
 230 struct Context :
 231     CYRoot
 232 {
 233     JSGlobalContextRef context_;
 234
 235     Context(JSGlobalContextRef context) :
 236         context_(context)
 237     {
 238     }
 239 };
 240
 241 struct CArray :
 242     CYRoot
 243 {
 244     void *value_;
 245     CYProtect owner_;
 246     Type_privateData *type_;
 247     size_t length_;
 248
 249     CArray(void *value, size_t length, const sig::Type &type, ffi_type *ffi, JSContextRef context, JSObjectRef owner) :
 250         value_(value),
 251         owner_(context, owner),
 252         type_(new(*pool_) Type_privateData(type, ffi)),
 253         length_(length)
 254     {
 255     }
 256 };
 257
 258 struct CString :
 259     CYRoot
 260 {
 261     char *value_;
 262     CYProtect owner_;
 263
 264     CString(char *value, JSContextRef context, JSObjectRef owner) :
 265         value_(value),
 266         owner_(context, owner)
 267     {
 268     }
 269 };
 270
 271 struct Pointer :
 272     CYRoot
 273 {
 274     void *value_;
 275     CYProtect owner_;
 276     Type_privateData *type_;
 277
 278     Pointer(void *value, const sig::Type &type, JSContextRef context, JSObjectRef owner) :
 279         value_(value),
 280         owner_(context, owner),
 281         type_(new(*pool_) Type_privateData(type))
 282     {
 283     }
 284
 285     Pointer(void *value, const char *encoding, JSContextRef context, JSObjectRef owner) :
 286         value_(value),
 287         owner_(context, owner),
 288         type_(new(*pool_) Type_privateData(encoding))
 289     {
 290     }
 291 };
 292
 293 struct Struct_privateData :
 294     CYRoot
 295 {
 296     void *value_;
 297     CYProtect owner_;
 298     Type_privateData *type_;
 299
 300     Struct_privateData(void *value, const sig::Type &type, ffi_type *ffi, JSContextRef context, JSObjectRef owner) :
 301         value_(value),
 302         owner_(context, owner),
 303         type_(new(*pool_) Type_privateData(type, ffi))
 304     {
 305         if (owner == NULL) {
 306             size_t size(ffi->size);
 307             void *copy(pool_->malloc<void>(size, ffi->alignment));
 308             memcpy(copy, value_, size);
 309             value_ = copy;
 310         }
 311     }
 312 };
 313
 314 static void *CYCastSymbol(const char *name) {
 315     for (CYHook *hook : GetHooks())
 316         if (hook->CastSymbol != NULL)
 317             if (void *value = (*hook->CastSymbol)(name))
 318                 return value;
 319     return dlsym(RTLD_DEFAULT, name);
 320 }
 321
 322 JSValueRef CYCastJSValue(JSContextRef context, bool value) {
 323     return JSValueMakeBoolean(context, value);
 324 }
 325
 326 JSValueRef CYCastJSValue(JSContextRef context, double value) {
 327     return JSValueMakeNumber(context, value);
 328 }
 329
 330 #define CYCastJSValue_(Type_) \
 331     JSValueRef CYCastJSValue(JSContextRef context, Type_ value) { \
 332         _assert(static_cast<Type_>(static_cast<double>(value)) == value); \
 333         return JSValueMakeNumber(context, static_cast<double>(value)); \
 334     }
 335
 336 CYCastJSValue_(long double)
 337 CYCastJSValue_(signed short int)
 338 CYCastJSValue_(unsigned short int)
 339 CYCastJSValue_(signed int)
 340 CYCastJSValue_(unsigned int)
 341 CYCastJSValue_(signed long int)
 342 CYCastJSValue_(unsigned long int)
 343 CYCastJSValue_(signed long long int)
 344 CYCastJSValue_(unsigned long long int)
 345
 346 #ifdef __SIZEOF_INT128__
 347 CYCastJSValue_(signed __int128)
 348 CYCastJSValue_(unsigned __int128)
 349 #endif
 350
 351 JSValueRef CYJSUndefined(JSContextRef context) {
 352     return JSValueMakeUndefined(context);
 353 }
 354
 355 double CYCastDouble(JSContextRef context, JSValueRef value) {
 356     return _jsccall(JSValueToNumber, context, value);
 357 }
 358
 359 bool CYCastBool(JSContextRef context, JSValueRef value) {
 360     return JSValueToBoolean(context, value);
 361 }
 362
 363 JSValueRef CYJSNull(JSContextRef context) {
 364     return JSValueMakeNull(context);
 365 }
 366
 367 JSValueRef CYCastJSValue(JSContextRef context, JSStringRef value) {
 368     return value == NULL ? CYJSNull(context) : JSValueMakeString(context, value);
 369 }
 370
 371 JSValueRef CYCastJSValue(JSContextRef context, const char *value) {
 372     return CYCastJSValue(context, CYJSString(value));
 373 }
 374
 375 JSObjectRef CYCastJSObject(JSContextRef context, JSValueRef value) {
 376     return _jsccall(JSValueToObject, context, value);
 377 }
 378
 379 JSValueRef CYCallAsFunction(JSContextRef context, JSObjectRef function, JSObjectRef _this, size_t count, const JSValueRef arguments[]) {
 380     return _jsccall(JSObjectCallAsFunction, context, function, _this, count, arguments);
 381 }
 382
 383 bool CYIsCallable(JSContextRef context, JSValueRef value) {
 384     return value != NULL && JSValueIsObject(context, value) && JSObjectIsFunction(context, (JSObjectRef) value);
 385 }
 386
 387 bool CYIsEqual(JSContextRef context, JSValueRef lhs, JSValueRef rhs) {
 388     return _jsccall(JSValueIsEqual, context, lhs, rhs);
 389 }
 390
 391 bool CYIsStrictEqual(JSContextRef context, JSValueRef lhs, JSValueRef rhs) {
 392     return JSValueIsStrictEqual(context, lhs, rhs);
 393 }
 394
 395 size_t CYArrayLength(JSContextRef context, JSObjectRef array) {
 396     return CYCastDouble(context, CYGetProperty(context, array, length_s));
 397 }
 398
 399 JSValueRef CYArrayGet(JSContextRef context, JSObjectRef array, size_t index) {
 400     return _jsccall(JSObjectGetPropertyAtIndex, context, array, index);
 401 }
 402
 403 void CYArrayPush(JSContextRef context, JSObjectRef array, size_t length, const JSValueRef arguments[]) {
 404     JSObjectRef Array(CYGetCachedObject(context, CYJSString("Array_prototype")));
 405     _jsccall(JSObjectCallAsFunction, context, CYCastJSObject(context, CYGetProperty(context, Array, push_s)), array, length, arguments);
 406 }
 407
 408 void CYArrayPush(JSContextRef context, JSObjectRef array, JSValueRef value) {
 409     return CYArrayPush(context, array, 1, &value);
 410 }
 411
 412 static JSValueRef System_print(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
 413     FILE *file(stdout);
 414
 415     if (count == 0)
 416         fputc('\n', file);
 417     else {
 418         CYPool pool;
 419         CYUTF8String string(CYPoolUTF8String(pool, context, CYJSString(context, arguments[0])));
 420         fwrite(string.data, string.size, 1, file);
 421     }
 422
 423     fflush(file);
 424     return CYJSUndefined(context);
 425 } CYCatch(NULL) }
 426
 427 static JSValueRef Global_print(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
 428     FILE *file(stdout);
 429     CYPool pool;
 430
 431     for (size_t i(0); i != count; ++i) {
 432         if (i != 0)
 433             fputc(' ', file);
 434         CYUTF8String string(CYPoolUTF8String(pool, context, CYJSString(context, arguments[i])));
 435         fwrite(string.data, string.size, 1, file);
 436     }
 437
 438     fputc('\n', file);
 439     fflush(file);
 440     return CYJSUndefined(context);
 441 } CYCatch(NULL) }
 442
 443 static void (*JSSynchronousGarbageCollectForDebugging$)(JSContextRef);
 444
 445 _visible void CYGarbageCollect(JSContextRef context) {
 446     (JSSynchronousGarbageCollectForDebugging$ ?: &JSGarbageCollect)(context);
 447 }
 448
 449 static JSValueRef Cycript_compile_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
 450     CYPool pool;
 451     CYUTF8String before(CYPoolUTF8String(pool, context, CYJSString(context, arguments[0])));
 452     CYUTF8String after(CYPoolCode(pool, before));
 453     return CYCastJSValue(context, CYJSString(after));
 454 } CYCatch_(NULL, "SyntaxError") }
 455
 456 static JSValueRef Cycript_gc_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
 457     CYGarbageCollect(context);
 458     return CYJSUndefined(context);
 459 } CYCatch(NULL) }
 460
 461 const char *CYPoolCCYON(CYPool &pool, JSContextRef context, JSValueRef value, std::set<void *> &objects, JSValueRef *exception) { CYTry {
 462     switch (JSType type = JSValueGetType(context, value)) {
 463         case kJSTypeUndefined:
 464             return "undefined";
 465         case kJSTypeNull:
 466             return "null";
 467         case kJSTypeBoolean:
 468             return CYCastBool(context, value) ? "true" : "false";
 469
 470         case kJSTypeNumber: {
 471             std::ostringstream str;
 472             CYNumerify(str, CYCastDouble(context, value));
 473             std::string value(str.str());
 474             return pool.strmemdup(value.c_str(), value.size());
 475         } break;
 476
 477         case kJSTypeString: {
 478             std::ostringstream str;
 479             CYUTF8String string(CYPoolUTF8String(pool, context, CYJSString(context, value)));
 480             CYStringify(str, string.data, string.size, CYStringifyModeCycript);
 481             std::string value(str.str());
 482             return pool.strmemdup(value.c_str(), value.size());
 483         } break;
 484
 485         case kJSTypeObject:
 486             return CYPoolCCYON(pool, context, (JSObjectRef) value, objects);
 487         default:
 488             throw CYJSError(context, "JSValueGetType() == 0x%x", type);
 489     }
 490 } CYCatch(NULL) }
 491
 492 const char *CYPoolCCYON(CYPool &pool, JSContextRef context, JSValueRef value, std::set<void *> &objects) {
 493     return _jsccall(CYPoolCCYON, pool, context, value, objects);
 494 }
 495
 496 const char *CYPoolCCYON(CYPool &pool, JSContextRef context, JSValueRef value, std::set<void *> *objects) {
 497     if (objects != NULL)
 498         return CYPoolCCYON(pool, context, value, *objects);
 499     else {
 500         std::set<void *> objects;
 501         return CYPoolCCYON(pool, context, value, objects);
 502     }
 503 }
 504
 505 const char *CYPoolCCYON(CYPool &pool, JSContextRef context, JSObjectRef object, std::set<void *> &objects) {
 506     JSValueRef toCYON(CYGetProperty(context, object, toCYON_s));
 507     if (CYIsCallable(context, toCYON)) {
 508         // XXX: this needs to be abstracted behind some kind of function
 509         JSValueRef arguments[1] = {CYCastJSValue(context, reinterpret_cast<uintptr_t>(&objects))};
 510         JSValueRef value(CYCallAsFunction(context, (JSObjectRef) toCYON, object, 1, arguments));
 511         _assert(value != NULL);
 512         return CYPoolCString(pool, context, value);
 513     }
 514
 515     JSValueRef toJSON(CYGetProperty(context, object, toJSON_s));
 516     if (CYIsCallable(context, toJSON)) {
 517         JSValueRef arguments[1] = {CYCastJSValue(context, CYJSString(""))};
 518         return _jsccall(CYPoolCCYON, pool, context, CYCallAsFunction(context, (JSObjectRef) toJSON, object, 1, arguments), objects);
 519     }
 520
 521     if (JSObjectIsFunction(context, object)) {
 522         JSValueRef toString(CYGetProperty(context, object, toString_s));
 523         if (CYIsCallable(context, toString)) {
 524             JSValueRef arguments[1] = {CYCastJSValue(context, CYJSString(""))};
 525             JSValueRef value(CYCallAsFunction(context, (JSObjectRef) toString, object, 1, arguments));
 526             _assert(value != NULL);
 527             return CYPoolCString(pool, context, value);
 528         }
 529     }
 530
 531     _assert(objects.insert(object).second);
 532
 533     std::ostringstream str;
 534
 535     JSValueRef value(CYGetProperty(context, object, constructor_s));
 536     if (JSValueIsObject(context, value)) {
 537         JSObjectRef constructor(CYCastJSObject(context, value));
 538         JSValueRef theory(CYGetProperty(context, constructor, prototype_s));
 539         JSValueRef practice(JSObjectGetPrototype(context, object));
 540
 541         if (CYIsStrictEqual(context, theory, practice)) {
 542             JSValueRef name(CYGetProperty(context, constructor, name_s));
 543             if (!JSValueIsUndefined(context, name)) {
 544                 auto utf8(CYPoolUTF8String(pool, context, CYJSString(context, name)));
 545                 if (utf8 != "Object")
 546                     str << "new" << ' ' << utf8;
 547             }
 548         }
 549     }
 550
 551     str << '{';
 552
 553     // XXX: this is, sadly, going to leak
 554     JSPropertyNameArrayRef names(JSObjectCopyPropertyNames(context, object));
 555
 556     bool comma(false);
 557
 558     for (size_t index(0), count(JSPropertyNameArrayGetCount(names)); index != count; ++index) {
 559         if (comma)
 560             str << ',';
 561         else
 562             comma = true;
 563
 564         JSStringRef name(JSPropertyNameArrayGetNameAtIndex(names, index));
 565         CYUTF8String string(CYPoolUTF8String(pool, context, name));
 566
 567         if (CYIsKey(string))
 568             str << string.data;
 569         else
 570             CYStringify(str, string.data, string.size, CYStringifyModeLegacy);
 571
 572         str << ':';
 573
 574         try {
 575             JSValueRef value(CYGetProperty(context, object, name));
 576             str << CYPoolCCYON(pool, context, value, objects);
 577         } catch (const CYException &error) {
 578             str << "@error";
 579         }
 580     }
 581
 582     JSPropertyNameArrayRelease(names);
 583
 584     str << '}';
 585
 586     std::string string(str.str());
 587     return pool.strmemdup(string.c_str(), string.size());
 588 }
 589
 590 std::set<void *> *CYCastObjects(JSContextRef context, JSObjectRef _this, size_t count, const JSValueRef arguments[]) {
 591     if (count == 0)
 592         return NULL;
 593     return CYCastPointer<std::set<void *> *>(context, arguments[0]);
 594 }
 595
 596 static JSValueRef Array_callAsFunction_toCYON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
 597     std::set<void *> *objects(CYCastObjects(context, _this, count, arguments));
 598     // XXX: this is horribly inefficient
 599     std::set<void *> backup;
 600     if (objects == NULL)
 601         objects = &backup;
 602
 603     CYPool pool;
 604     std::ostringstream str;
 605
 606     str << '[';
 607
 608     JSValueRef length(CYGetProperty(context, _this, length_s));
 609     bool comma(false);
 610
 611     for (size_t index(0), count(CYCastDouble(context, length)); index != count; ++index) {
 612         if (comma)
 613             str << ',';
 614         else
 615             comma = true;
 616
 617         try {
 618             JSValueRef value(CYGetProperty(context, _this, index));
 619             if (!JSValueIsUndefined(context, value))
 620                 str << CYPoolCCYON(pool, context, value, *objects);
 621             else {
 622                 str << ',';
 623                 comma = false;
 624             }
 625         } catch (const CYException &error) {
 626             str << "@error";
 627         }
 628     }
 629
 630     str << ']';
 631
 632     std::string value(str.str());
 633     return CYCastJSValue(context, CYJSString(CYUTF8String(value.c_str(), value.size())));
 634 } CYCatch(NULL) }
 635
 636 static JSValueRef String_callAsFunction_toCYON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
 637     CYPool pool;
 638     std::ostringstream str;
 639
 640     CYUTF8String string(CYPoolUTF8String(pool, context, CYJSString(context, _this)));
 641     CYStringify(str, string.data, string.size, CYStringifyModeCycript);
 642
 643     std::string value(str.str());
 644     return CYCastJSValue(context, CYJSString(CYUTF8String(value.c_str(), value.size())));
 645 } CYCatch(NULL) }
 646
 647 JSObjectRef CYMakePointer(JSContextRef context, void *pointer, const sig::Type &type, ffi_type *ffi, JSObjectRef owner) {
 648     return CYPrivate<Pointer>::Make(context, pointer, type, context, owner);
 649 }
 650
 651 static JSValueRef CYMakeFunctor(JSContextRef context, void (*function)(), bool variadic, const sig::Signature &signature) {
 652     if (function == NULL)
 653         return CYJSNull(context);
 654     return JSObjectMake(context, cy::Functor::Class_, new cy::Functor(function, variadic, signature));
 655 }
 656
 657 // XXX: remove this, as it is really stupid
 658 static JSObjectRef CYMakeFunctor(JSContextRef context, const char *symbol, const char *encoding) {
 659     void (*function)()(reinterpret_cast<void (*)()>(CYCastSymbol(symbol)));
 660     if (function == NULL)
 661         return NULL;
 662
 663     cy::Functor *internal(new cy::Functor(function, encoding));
 664     ++internal->count_;
 665     return JSObjectMake(context, cy::Functor::Class_, internal);
 666 }
 667
 668 bool CYGetOffset(CYPool &pool, JSContextRef context, JSStringRef value, ssize_t &index) {
 669     return CYGetOffset(CYPoolCString(pool, context, value), index);
 670 }
 671
 672 void *CYCastPointer_(JSContextRef context, JSValueRef value, bool *guess) {
 673     if (value == NULL)
 674         return NULL;
 675     else switch (JSValueGetType(context, value)) {
 676         case kJSTypeNull:
 677             return NULL;
 678         case kJSTypeObject: {
 679             JSObjectRef object((JSObjectRef) value);
 680             if (JSValueIsObjectOfClass(context, value, CYPrivate<Pointer>::Class_)) {
 681                 Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(object)));
 682                 return internal->value_;
 683             }
 684             JSValueRef toPointer(CYGetProperty(context, object, toPointer_s));
 685             if (CYIsCallable(context, toPointer)) {
 686                 JSValueRef value(CYCallAsFunction(context, (JSObjectRef) toPointer, object, 0, NULL));
 687                 _assert(value != NULL);
 688                 return CYCastPointer_(context, value, guess);
 689             }
 690         } default:
 691             if (guess != NULL)
 692                 *guess = true;
 693         case kJSTypeNumber:
 694             double number(CYCastDouble(context, value));
 695             if (!std::isnan(number))
 696                 return reinterpret_cast<void *>(static_cast<uintptr_t>(static_cast<long long>(number)));
 697             if (guess == NULL)
 698                 throw CYJSError(context, "cannot convert value to pointer");
 699             else {
 700                 *guess = true;
 701                 return NULL;
 702             }
 703     }
 704 }
 705
 706 namespace sig {
 707
 708 // XXX: this is somehow not quite a template :/
 709
 710 template <>
 711 void Primitive<bool>::PoolFFI(CYPool *pool, JSContextRef context, ffi_type *ffi, void *data, JSValueRef value) const {
 712     *reinterpret_cast<bool *>(data) = JSValueToBoolean(context, value);
 713 }
 714
 715 #define CYPoolFFI_(Type_) \
 716 template <> \
 717 void Primitive<Type_>::PoolFFI(CYPool *pool, JSContextRef context, ffi_type *ffi, void *data, JSValueRef value) const { \
 718     *reinterpret_cast<Type_ *>(data) = CYCastDouble(context, value); \
 719 }
 720
 721 CYPoolFFI_(wchar_t)
 722 CYPoolFFI_(float)
 723 CYPoolFFI_(double)
 724 CYPoolFFI_(long double)
 725
 726 CYPoolFFI_(signed char)
 727 CYPoolFFI_(signed int)
 728 CYPoolFFI_(signed long int)
 729 CYPoolFFI_(signed long long int)
 730 CYPoolFFI_(signed short int)
 731
 732 CYPoolFFI_(unsigned char)
 733 CYPoolFFI_(unsigned int)
 734 CYPoolFFI_(unsigned long int)
 735 CYPoolFFI_(unsigned long long int)
 736 CYPoolFFI_(unsigned short int)
 737
 738 #ifdef __SIZEOF_INT128__
 739 CYPoolFFI_(signed __int128)
 740 CYPoolFFI_(unsigned __int128)
 741 #endif
 742
 743 template <>
 744 void Primitive<char>::PoolFFI(CYPool *pool, JSContextRef context, ffi_type *ffi, void *data, JSValueRef value) const {
 745     if (JSValueGetType(context, value) != kJSTypeString)
 746         *reinterpret_cast<char *>(data) = CYCastDouble(context, value);
 747     else {
 748         CYJSString script(context, value);
 749         auto string(CYCastUTF16String(script));
 750         _assert(string.size == 1);
 751         *reinterpret_cast<char *>(data) = string.data[0];
 752     }
 753 }
 754
 755 void Void::PoolFFI(CYPool *pool, JSContextRef context, ffi_type *ffi, void *data, JSValueRef value) const {
 756     _assert(false);
 757 }
 758
 759 void Unknown::PoolFFI(CYPool *pool, JSContextRef context, ffi_type *ffi, void *data, JSValueRef value) const {
 760     _assert(false);
 761 }
 762
 763 void String::PoolFFI(CYPool *pool, JSContextRef context, ffi_type *ffi, void *data, JSValueRef value) const {
 764     bool guess(false);
 765     *reinterpret_cast<const char **>(data) = CYCastPointer<const char *>(context, value, &guess);
 766     if (guess && pool != NULL)
 767         *reinterpret_cast<const char **>(data) = CYPoolCString(*pool, context, value);
 768 }
 769
 770 void Bits::PoolFFI(CYPool *pool, JSContextRef context, ffi_type *ffi, void *data, JSValueRef value) const {
 771     _assert(false);
 772 }
 773
 774 static void CYArrayCopy(CYPool *pool, JSContextRef context, uint8_t *base, size_t length, const sig::Type &type, ffi_type *ffi, JSObjectRef object) {
 775     for (size_t index(0); index != length; ++index) {
 776         JSValueRef rhs(CYGetProperty(context, object, index));
 777         if (JSValueIsUndefined(context, rhs))
 778             throw CYJSError(context, "unable to extract array value");
 779         type.PoolFFI(pool, context, ffi, base, rhs);
 780         base += ffi->size;
 781     }
 782 }
 783
 784 void Pointer::PoolFFI(CYPool *pool, JSContextRef context, ffi_type *ffi, void *data, JSValueRef value) const {
 785     bool guess(false);
 786     *reinterpret_cast<void **>(data) = CYCastPointer<void *>(context, value, &guess);
 787     if (!guess || pool == NULL || !JSValueIsObject(context, value))
 788         return;
 789     JSObjectRef object(CYCastJSObject(context, value));
 790     if (CYHasProperty(context, object, length_s)) {
 791         size_t length(CYArrayLength(context, object));
 792         ffi_type *element(type.GetFFI(*pool));
 793         size_t size(element->size * length);
 794         uint8_t *base(pool->malloc<uint8_t>(size, element->alignment));
 795         CYArrayCopy(pool, context, base, length, type, element, object);
 796         *reinterpret_cast<void **>(data) = base;
 797     }
 798 }
 799
 800 void Array::PoolFFI(CYPool *pool, JSContextRef context, ffi_type *ffi, void *data, JSValueRef value) const {
 801     if (size == 0)
 802         return;
 803     uint8_t *base(reinterpret_cast<uint8_t *>(data));
 804     CYArrayCopy(pool, context, base, size, type, ffi->elements[0], CYCastJSObject(context, value));
 805 }
 806
 807 void Enum::PoolFFI(CYPool *pool, JSContextRef context, ffi_type *ffi, void *data, JSValueRef value) const {
 808     return type.PoolFFI(pool, context, ffi, data, value);
 809 }
 810
 811 void Aggregate::PoolFFI(CYPool *pool, JSContextRef context, ffi_type *ffi, void *data, JSValueRef value) const {
 812     _assert(!overlap);
 813     _assert(signature.count != _not(size_t));
 814
 815     size_t offset(0);
 816     uint8_t *base(reinterpret_cast<uint8_t *>(data));
 817     JSObjectRef aggregate(JSValueIsObject(context, value) ? (JSObjectRef) value : NULL);
 818     for (size_t index(0); index != signature.count; ++index) {
 819         sig::Element *element(&signature.elements[index]);
 820         ffi_type *field(ffi->elements[index]);
 821
 822         JSValueRef rhs;
 823         if (aggregate == NULL)
 824             rhs = value;
 825         else {
 826             rhs = CYGetProperty(context, aggregate, index);
 827             if (JSValueIsUndefined(context, rhs)) {
 828                 if (element->name != NULL)
 829                     rhs = CYGetProperty(context, aggregate, CYJSString(element->name));
 830                 else
 831                     goto undefined;
 832                 if (JSValueIsUndefined(context, rhs)) undefined:
 833                     throw CYJSError(context, "unable to extract structure value");
 834             }
 835         }
 836
 837         element->type->PoolFFI(pool, context, field, base + offset, rhs);
 838         offset += field->size;
 839         CYAlign(offset, field->alignment);
 840     }
 841 }
 842
 843 void Function::PoolFFI(CYPool *pool, JSContextRef context, ffi_type *ffi, void *data, JSValueRef value) const {
 844     _assert(false);
 845 }
 846
 847 #define CYFromFFI_(Type_) \
 848 template <> \
 849 JSValueRef Primitive<Type_>::FromFFI(JSContextRef context, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) const { \
 850     JSValueRef value(CYCastJSValue(context, *reinterpret_cast<Type_ *>(data))); \
 851     JSObjectRef typed(_jsccall(JSObjectCallAsConstructor, context, CYGetCachedObject(context, CYJSString("Number")), 1, &value)); \
 852     CYSetProperty(context, typed, cyt_s, CYMakeType(context, *this), kJSPropertyAttributeDontEnum); \
 853     return typed; \
 854 }
 855
 856 CYFromFFI_(wchar_t)
 857 CYFromFFI_(float)
 858 CYFromFFI_(double)
 859 CYFromFFI_(long double)
 860
 861 CYFromFFI_(signed char)
 862 CYFromFFI_(signed int)
 863 CYFromFFI_(signed long int)
 864 CYFromFFI_(signed long long int)
 865 CYFromFFI_(signed short int)
 866
 867 CYFromFFI_(unsigned char)
 868 CYFromFFI_(unsigned int)
 869 CYFromFFI_(unsigned long int)
 870 CYFromFFI_(unsigned long long int)
 871 CYFromFFI_(unsigned short int)
 872
 873 #ifdef __SIZEOF_INT128__
 874 CYFromFFI_(signed __int128)
 875 CYFromFFI_(unsigned __int128)
 876 #endif
 877
 878 template <>
 879 JSValueRef Primitive<bool>::FromFFI(JSContextRef context, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) const {
 880     return CYCastJSValue(context, *reinterpret_cast<bool *>(data));
 881 }
 882
 883 template <>
 884 JSValueRef Primitive<char>::FromFFI(JSContextRef context, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) const {
 885     uint16_t string(uint8_t(*reinterpret_cast<char *>(data)));
 886     JSValueRef value(CYCastJSValue(context, CYJSString(CYUTF16String(&string, 1))));
 887     JSObjectRef typed(_jsccall(JSObjectCallAsConstructor, context, CYGetCachedObject(context, CYJSString("String")), 1, &value));
 888     CYSetProperty(context, typed, cyt_s, CYMakeType(context, sig::Primitive<char>()), kJSPropertyAttributeDontEnum);
 889     CYSetPrototype(context, typed, CYGetCachedValue(context, CYJSString("Character_prototype")));
 890     return typed;
 891 }
 892
 893 JSValueRef Void::FromFFI(JSContextRef context, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) const {
 894     return CYJSUndefined(context);
 895 }
 896
 897 JSValueRef Unknown::FromFFI(JSContextRef context, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) const {
 898     _assert(false);
 899 }
 900
 901 JSValueRef String::FromFFI(JSContextRef context, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) const {
 902     if (char *value = *reinterpret_cast<char **>(data))
 903         return CYPrivate<CString>::Make(context, value, context, owner);
 904     return CYJSNull(context);
 905 }
 906
 907 JSValueRef Bits::FromFFI(JSContextRef context, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) const {
 908     _assert(false);
 909 }
 910
 911 JSValueRef Pointer::FromFFI(JSContextRef context, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) const {
 912     if (void *value = *reinterpret_cast<void **>(data))
 913         return CYMakePointer(context, value, type, NULL, owner);
 914     return CYJSNull(context);
 915 }
 916
 917 JSValueRef Array::FromFFI(JSContextRef context, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) const {
 918     return CYPrivate<CArray>::Make(context, data, size, type, ffi->elements[0], context, owner);
 919 }
 920
 921 JSValueRef Enum::FromFFI(JSContextRef context, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) const {
 922     return type.FromFFI(context, ffi, data, initialize, owner);
 923 }
 924
 925 JSValueRef Aggregate::FromFFI(JSContextRef context, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) const {
 926     _assert(!overlap);
 927     _assert(signature.count != _not(size_t));
 928     return CYPrivate<Struct_privateData>::Make(context, data, *this, ffi, context, owner);
 929 }
 930
 931 JSValueRef Function::FromFFI(JSContextRef context, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) const {
 932     return CYMakeFunctor(context, reinterpret_cast<void (*)()>(data), variadic, signature);
 933 }
 934
 935 }
 936
 937 void CYExecuteClosure(ffi_cif *cif, void *result, void **arguments, void *arg) {
 938     Closure_privateData *internal(reinterpret_cast<Closure_privateData *>(arg));
 939
 940     JSContextRef context(internal->function_);
 941
 942     size_t count(internal->cif_.nargs);
 943     JSValueRef values[count];
 944
 945     for (size_t index(0); index != count; ++index)
 946         values[index] = internal->signature_.elements[1 + index].type->FromFFI(context, internal->cif_.arg_types[index], arguments[index]);
 947
 948     JSValueRef value(internal->adapter_(context, count, values, internal->function_));
 949     if (internal->cif_.rtype != &ffi_type_void)
 950         internal->signature_.elements[0].type->PoolFFI(NULL, context, internal->cif_.rtype, result, value);
 951 }
 952
 953 static JSValueRef FunctionAdapter_(JSContextRef context, size_t count, JSValueRef values[], JSObjectRef function) {
 954     return CYCallAsFunction(context, function, NULL, count, values);
 955 }
 956
 957 #if defined(__APPLE__) && (defined(__arm__) || defined(__arm64__))
 958 static void CYFreeFunctor(void *data) {
 959     ffi_closure_free(data);
 960 }
 961 #else
 962 static void CYFreeFunctor(void *data) {
 963     _syscall(munmap(data, sizeof(ffi_closure)));
 964 }
 965 #endif
 966
 967 Closure_privateData *CYMakeFunctor_(JSContextRef context, JSObjectRef function, const sig::Signature &signature, JSValueRef (*adapter)(JSContextRef, size_t, JSValueRef[], JSObjectRef)) {
 968     // XXX: in case of exceptions this will leak
 969     Closure_privateData *internal(new Closure_privateData(context, function, adapter, signature));
 970
 971 #if defined(__APPLE__) && (defined(__arm__) || defined(__arm64__))
 972     void *executable;
 973     ffi_closure *writable(reinterpret_cast<ffi_closure *>(ffi_closure_alloc(sizeof(ffi_closure), &executable)));
 974
 975     ffi_status status(ffi_prep_closure_loc(writable, &internal->cif_, &CYExecuteClosure, internal, executable));
 976     _assert(status == FFI_OK);
 977
 978     internal->pool_->atexit(&CYFreeFunctor, writable);
 979     internal->value_ = reinterpret_cast<void (*)()>(executable);
 980 #else
 981     ffi_closure *closure((ffi_closure *) _syscall(mmap(
 982         NULL, sizeof(ffi_closure),
 983         PROT_READ | PROT_WRITE, MAP_ANON | MAP_PRIVATE,
 984         -1, 0
 985     )));
 986
 987     ffi_status status(ffi_prep_closure(closure, &internal->cif_, &CYExecuteClosure, internal));
 988     _assert(status == FFI_OK);
 989
 990     _syscall(mprotect(closure, sizeof(*closure), PROT_READ | PROT_EXEC));
 991
 992     internal->pool_->atexit(&CYFreeFunctor, closure);
 993     internal->value_ = reinterpret_cast<void (*)()>(closure);
 994 #endif
 995
 996     return internal;
 997 }
 998
 999 static JSObjectRef CYMakeFunctor(JSContextRef context, JSObjectRef function, const sig::Signature &signature) {
1000     Closure_privateData *internal(CYMakeFunctor_(context, function, signature, &FunctionAdapter_));
1001     JSObjectRef object(JSObjectMake(context, cy::Functor::Class_, internal));
1002     // XXX: see above notes about needing to leak
1003     JSValueProtect(CYGetJSContext(context), object);
1004     return object;
1005 }
1006
1007 JSValueRef CYGetCachedValue(JSContextRef context, JSStringRef name) {
1008     return CYGetProperty(context, CYCastJSObject(context, CYGetProperty(context, CYGetGlobalObject(context), cy_s)), name);
1009 }
1010
1011 JSObjectRef CYGetCachedObject(JSContextRef context, JSStringRef name) {
1012     return CYCastJSObject(context, CYGetCachedValue(context, name));
1013 }
1014
1015 static JSValueRef CYMakeFunctor(JSContextRef context, JSValueRef value, bool variadic, const sig::Signature &signature) {
1016     JSObjectRef Function(CYGetCachedObject(context, CYJSString("Function")));
1017
1018     bool function(_jsccall(JSValueIsInstanceOfConstructor, context, value, Function));
1019     if (function) {
1020         JSObjectRef function(CYCastJSObject(context, value));
1021         return CYMakeFunctor(context, function, signature);
1022     } else {
1023         void (*function)()(CYCastPointer<void (*)()>(context, value));
1024         return CYMakeFunctor(context, function, variadic, signature);
1025     }
1026 }
1027
1028 static JSValueRef CString_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1029     CYPool pool;
1030     CString *internal(reinterpret_cast<CString *>(JSObjectGetPrivate(object)));
1031
1032     ssize_t offset;
1033     if (JSStringIsEqualToUTF8CString(property, "$cyi"))
1034         offset = 0;
1035     else if (!CYGetOffset(pool, context, property, offset))
1036         return NULL;
1037
1038     sig::Primitive<char> type;
1039     return type.FromFFI(context, type.GetFFI(pool), internal->value_ + offset, false, NULL);
1040 } CYCatch(NULL) }
1041
1042 static bool CString_setProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef value, JSValueRef *exception) { CYTry {
1043     CYPool pool;
1044     CString *internal(reinterpret_cast<CString *>(JSObjectGetPrivate(object)));
1045
1046     ssize_t offset;
1047     if (JSStringIsEqualToUTF8CString(property, "$cyi"))
1048         offset = 0;
1049     else if (!CYGetOffset(pool, context, property, offset))
1050         return false;
1051
1052     sig::Primitive<char> type;
1053     type.PoolFFI(NULL, context, type.GetFFI(pool), internal->value_ + offset, value);
1054     return true;
1055 } CYCatch(false) }
1056
1057 static bool Index_(CYPool &pool, JSContextRef context, Struct_privateData *internal, JSStringRef property, ssize_t &index, uint8_t *&base) {
1058     Type_privateData *typical(internal->type_);
1059     sig::Aggregate *type(static_cast<sig::Aggregate *>(typical->type_));
1060     if (type == NULL)
1061         return false;
1062
1063     const char *name(CYPoolCString(pool, context, property));
1064     size_t length(strlen(name));
1065     double number(CYCastDouble(name, length));
1066
1067     size_t count(type->signature.count);
1068
1069     if (std::isnan(number)) {
1070         if (property == NULL)
1071             return false;
1072
1073         sig::Element *elements(type->signature.elements);
1074
1075         for (size_t local(0); local != count; ++local) {
1076             sig::Element *element(&elements[local]);
1077             if (element->name != NULL && strcmp(name, element->name) == 0) {
1078                 index = local;
1079                 goto base;
1080             }
1081         }
1082
1083         return false;
1084     } else {
1085         index = static_cast<ssize_t>(number);
1086         if (index != number || index < 0 || static_cast<size_t>(index) >= count)
1087             return false;
1088     }
1089
1090   base:
1091     ffi_type **elements(typical->GetFFI()->elements);
1092
1093     size_t offset(0);
1094     for (ssize_t local(0); local != index; ++local) {
1095         offset += elements[local]->size;
1096         CYAlign(offset, elements[local + 1]->alignment);
1097     }
1098
1099     base = reinterpret_cast<uint8_t *>(internal->value_) + offset;
1100     return true;
1101 }
1102
1103 static void *Offset_(CYPool &pool, JSContextRef context, JSStringRef property, void *data, ffi_type *ffi) {
1104     ssize_t offset;
1105     if (JSStringIsEqualToUTF8CString(property, "$cyi"))
1106         offset = 0;
1107     else if (!CYGetOffset(pool, context, property, offset))
1108         return NULL;
1109     return reinterpret_cast<uint8_t *>(data) + ffi->size * offset;
1110 }
1111
1112 static JSValueRef Offset_getProperty(CYPool &pool, JSContextRef context, JSStringRef property, void *data, Type_privateData *typical, JSObjectRef owner) {
1113     ffi_type *ffi(typical->GetFFI());
1114     void *base(Offset_(pool, context, property, data, ffi));
1115     if (base == NULL)
1116         return NULL;
1117     return typical->type_->FromFFI(context, ffi, base, false, owner);
1118 }
1119
1120 static bool Offset_setProperty(CYPool &pool, JSContextRef context, JSStringRef property, void *data, Type_privateData *typical, JSValueRef value) {
1121     ffi_type *ffi(typical->GetFFI());
1122     void *base(Offset_(pool, context, property, data, ffi));
1123     if (base == NULL)
1124         return false;
1125
1126     typical->type_->PoolFFI(NULL, context, ffi, base, value);
1127     return true;
1128 }
1129
1130 static JSValueRef CArray_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1131     CYPool pool;
1132     CArray *internal(reinterpret_cast<CArray *>(JSObjectGetPrivate(object)));
1133     if (JSStringIsEqual(property, length_s))
1134         return CYCastJSValue(context, internal->length_);
1135     Type_privateData *typical(internal->type_);
1136     JSObjectRef owner(internal->owner_ ?: object);
1137     return Offset_getProperty(pool, context, property, internal->value_, typical, owner);
1138 } CYCatch(NULL) }
1139
1140 static bool CArray_setProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef value, JSValueRef *exception) { CYTry {
1141     CYPool pool;
1142     Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(object)));
1143     Type_privateData *typical(internal->type_);
1144     return Offset_setProperty(pool, context, property, internal->value_, typical, value);
1145 } CYCatch(false) }
1146
1147 static JSValueRef Pointer_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1148     CYPool pool;
1149     Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(object)));
1150
1151     Type_privateData *typical(internal->type_);
1152
1153     if (sig::Function *function = dynamic_cast<sig::Function *>(typical->type_)) {
1154         if (!JSStringIsEqualToUTF8CString(property, "$cyi"))
1155             return NULL;
1156         return CYMakeFunctor(context, reinterpret_cast<void (*)()>(internal->value_), function->variadic, function->signature);
1157     }
1158
1159     JSObjectRef owner(internal->owner_ ?: object);
1160     return Offset_getProperty(pool, context, property, internal->value_, typical, owner);
1161 } CYCatch(NULL) }
1162
1163 static bool Pointer_setProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef value, JSValueRef *exception) { CYTry {
1164     CYPool pool;
1165     Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(object)));
1166     Type_privateData *typical(internal->type_);
1167     return Offset_setProperty(pool, context, property, internal->value_, typical, value);
1168 } CYCatch(false) }
1169
1170 static JSValueRef Struct_callAsFunction_$cya(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1171     Struct_privateData *internal(reinterpret_cast<Struct_privateData *>(JSObjectGetPrivate(_this)));
1172     Type_privateData *typical(internal->type_);
1173     return CYMakePointer(context, internal->value_, *typical->type_, typical->ffi_, _this);
1174 } CYCatch(NULL) }
1175
1176 static JSValueRef Struct_getProperty_$cyt(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1177     Struct_privateData *internal(reinterpret_cast<Struct_privateData *>(JSObjectGetPrivate(object)));
1178     return CYMakeType(context, *internal->type_->type_);
1179 } CYCatch(NULL) }
1180
1181 static JSValueRef Struct_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1182     CYPool pool;
1183     Struct_privateData *internal(reinterpret_cast<Struct_privateData *>(JSObjectGetPrivate(object)));
1184     Type_privateData *typical(internal->type_);
1185     sig::Aggregate *type(static_cast<sig::Aggregate *>(typical->type_));
1186
1187     ssize_t index;
1188     uint8_t *base;
1189
1190     if (!Index_(pool, context, internal, property, index, base))
1191         return NULL;
1192
1193     JSObjectRef owner(internal->owner_ ?: object);
1194
1195     return type->signature.elements[index].type->FromFFI(context, typical->GetFFI()->elements[index], base, false, owner);
1196 } CYCatch(NULL) }
1197
1198 static bool Struct_setProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef value, JSValueRef *exception) { CYTry {
1199     CYPool pool;
1200     Struct_privateData *internal(reinterpret_cast<Struct_privateData *>(JSObjectGetPrivate(object)));
1201     Type_privateData *typical(internal->type_);
1202     sig::Aggregate *type(static_cast<sig::Aggregate *>(typical->type_));
1203
1204     ssize_t index;
1205     uint8_t *base;
1206
1207     if (!Index_(pool, context, internal, property, index, base))
1208         return false;
1209
1210     type->signature.elements[index].type->PoolFFI(NULL, context, typical->GetFFI()->elements[index], base, value);
1211     return true;
1212 } CYCatch(false) }
1213
1214 static void Struct_getPropertyNames(JSContextRef context, JSObjectRef object, JSPropertyNameAccumulatorRef names) {
1215     Struct_privateData *internal(reinterpret_cast<Struct_privateData *>(JSObjectGetPrivate(object)));
1216     Type_privateData *typical(internal->type_);
1217     sig::Aggregate *type(static_cast<sig::Aggregate *>(typical->type_));
1218
1219     if (type == NULL)
1220         return;
1221
1222     size_t count(type->signature.count);
1223     sig::Element *elements(type->signature.elements);
1224
1225     char number[32];
1226
1227     for (size_t index(0); index != count; ++index) {
1228         const char *name;
1229         name = elements[index].name;
1230
1231         if (name == NULL) {
1232             sprintf(number, "%zu", index);
1233             name = number;
1234         }
1235
1236         JSPropertyNameAccumulatorAddName(names, CYJSString(name));
1237     }
1238 }
1239
1240 static sig::Void Void_;
1241 static sig::Pointer PointerToVoid_(Void_);
1242
1243 static sig::Type *CYGetType(CYPool &pool, JSContextRef context, JSValueRef value) {
1244     if (JSValueIsNull(context, value))
1245         return &PointerToVoid_;
1246     JSObjectRef object(CYCastJSObject(context, value));
1247     JSObjectRef type(CYCastJSObject(context, CYGetProperty(context, object, cyt_s)));
1248     _assert(JSValueIsObjectOfClass(context, type, CYPrivate<Type_privateData>::Class_));
1249     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(type)));
1250     return internal->type_;
1251 }
1252
1253 void CYCallFunction(CYPool &pool, JSContextRef context, ffi_cif *cif, void (*function)(), void *value, void **values) {
1254     ffi_call(cif, function, value, values);
1255 }
1256
1257 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)()) {
1258     size_t have(setups + count);
1259     size_t need(signature.count - 1);
1260
1261     if (have < need)
1262         throw CYJSError(context, "insufficient number of arguments to ffi function");
1263
1264     ffi_cif corrected;
1265     sig::Element *elements(signature.elements);
1266
1267     if (have > need) {
1268         if (!variadic)
1269             throw CYJSError(context, "exorbitant number of arguments to ffi function");
1270
1271         elements = new (pool) sig::Element[have + 1];
1272         memcpy(elements, signature.elements, sizeof(sig::Element) * (need + 1));
1273
1274         for (size_t index(need); index != have; ++index) {
1275             sig::Element &element(elements[index + 1]);
1276             element.name = NULL;
1277             element.offset = _not(size_t);
1278             element.type = CYGetType(pool, context, arguments[index - setups]);
1279         }
1280
1281         sig::Signature extended;
1282         extended.elements = elements;
1283         extended.count = have + 1;
1284         sig::sig_ffi_cif(pool, signature.count, extended, &corrected);
1285         cif = &corrected;
1286     }
1287
1288     void *values[have];
1289     memcpy(values, setup, sizeof(void *) * setups);
1290
1291     for (size_t index(setups); index != have; ++index) {
1292         sig::Element &element(elements[index + 1]);
1293         ffi_type *ffi(cif->arg_types[index]);
1294         values[index] = pool.malloc<uint8_t>(ffi->size, ffi->alignment);
1295         element.type->PoolFFI(&pool, context, ffi, values[index], arguments[index - setups]);
1296     }
1297
1298     CYBuffer buffer(context);
1299     uint8_t *value(buffer->malloc<uint8_t>(std::max<size_t>(cif->rtype->size, sizeof(ffi_arg)), std::max<size_t>(cif->rtype->alignment, alignof(ffi_arg))));
1300
1301     void (*call)(CYPool &, JSContextRef, ffi_cif *, void (*)(), void *, void **) = &CYCallFunction;
1302     // XXX: this only supports one hook, but it is a bad idea anyway
1303     for (CYHook *hook : GetHooks())
1304         if (hook->CallFunction != NULL)
1305             call = hook->CallFunction;
1306
1307     call(pool, context, cif, function, value, values);
1308     return signature.elements[0].type->FromFFI(context, cif->rtype, value, initialize, buffer);
1309 }
1310
1311 static JSValueRef Functor_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1312     CYPool pool;
1313     cy::Functor *internal(reinterpret_cast<cy::Functor *>(JSObjectGetPrivate(object)));
1314     return CYCallFunction(pool, context, 0, NULL, count, arguments, false, internal->variadic_, internal->signature_, &internal->cif_, internal->value_);
1315 } CYCatch(NULL) }
1316
1317 static JSValueRef Pointer_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1318     Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(object)));
1319     if (dynamic_cast<sig::Function *>(internal->type_->type_) == NULL)
1320         throw CYJSError(context, "cannot call a pointer to non-function");
1321     JSObjectRef functor(CYCastJSObject(context, CYGetProperty(context, object, cyi_s)));
1322     return CYCallAsFunction(context, functor, _this, count, arguments);
1323 } CYCatch(NULL) }
1324
1325 JSObjectRef CYMakeType(JSContextRef context, const sig::Type &type) {
1326     return CYPrivate<Type_privateData>::Make(context, type);
1327 }
1328
1329 extern "C" bool CYBridgeHash(CYPool &pool, CYUTF8String name, const char *&code, unsigned &flags) {
1330     sqlite3_stmt *statement;
1331
1332     _sqlcall(sqlite3_prepare(database_,
1333         "select "
1334             "\"cache\".\"code\", "
1335             "\"cache\".\"flags\" "
1336         "from \"cache\" "
1337         "where"
1338             " \"cache\".\"system\" & " CY_SYSTEM " == " CY_SYSTEM " and"
1339             " \"cache\".\"name\" = ?"
1340         " limit 1"
1341     , -1, &statement, NULL));
1342
1343     _sqlcall(sqlite3_bind_text(statement, 1, name.data, name.size, SQLITE_STATIC));
1344
1345     bool success;
1346     if (_sqlcall(sqlite3_step(statement)) == SQLITE_DONE)
1347         success = false;
1348     else {
1349         success = true;
1350         code = sqlite3_column_pooled(pool, statement, 0);
1351         flags = sqlite3_column_int(statement, 1);
1352     }
1353
1354     _sqlcall(sqlite3_finalize(statement));
1355     return success;
1356 }
1357
1358 static bool All_hasProperty(JSContextRef context, JSObjectRef object, JSStringRef property) {
1359     if (JSStringIsEqualToUTF8CString(property, "errno"))
1360         return true;
1361
1362     JSObjectRef global(CYGetGlobalObject(context));
1363     JSObjectRef cycript(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Cycript"))));
1364     JSObjectRef alls(CYCastJSObject(context, CYGetProperty(context, cycript, CYJSString("alls"))));
1365
1366     for (size_t i(0), count(CYArrayLength(context, alls)); i != count; ++i)
1367         if (JSObjectRef space = CYCastJSObject(context, CYArrayGet(context, alls, count - i - 1)))
1368             if (CYHasProperty(context, space, property))
1369                 return true;
1370
1371     CYPool pool;
1372     const char *code;
1373     unsigned flags;
1374     if (CYBridgeHash(pool, CYPoolUTF8String(pool, context, property), code, flags))
1375         return true;
1376
1377     return false;
1378 }
1379
1380 static JSValueRef All_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1381     if (JSStringIsEqualToUTF8CString(property, "errno"))
1382         return CYCastJSValue(context, errno);
1383
1384     JSObjectRef global(CYGetGlobalObject(context));
1385     JSObjectRef cycript(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Cycript"))));
1386     JSObjectRef alls(CYCastJSObject(context, CYGetProperty(context, cycript, CYJSString("alls"))));
1387
1388     for (size_t i(0), count(CYArrayLength(context, alls)); i != count; ++i)
1389         if (JSObjectRef space = CYCastJSObject(context, CYArrayGet(context, alls, count - i - 1)))
1390             if (JSValueRef value = CYGetProperty(context, space, property))
1391                 if (!JSValueIsUndefined(context, value))
1392                     return value;
1393
1394     CYPool pool;
1395     const char *code;
1396     unsigned flags;
1397     if (CYBridgeHash(pool, CYPoolUTF8String(pool, context, property), code, flags)) {
1398         CYUTF8String parsed;
1399
1400         try {
1401             parsed = CYPoolCode(pool, code);
1402         } catch (const CYException &error) {
1403             CYThrow("%s", pool.strcat("error caching ", CYPoolCString(pool, context, property), ": ", error.PoolCString(pool), NULL));
1404         }
1405
1406         JSObjectRef cache(CYGetCachedObject(context, CYJSString("cache")));
1407
1408         JSObjectRef stub;
1409         if (flags == CYBridgeType) {
1410             stub = CYMakeType(context, sig::Void());
1411             CYSetProperty(context, cache, property, stub);
1412         } else
1413             stub = NULL;
1414
1415         JSValueRef value(_jsccall(JSEvaluateScript, context, CYJSString(parsed), NULL, NULL, 0));
1416
1417         switch (flags) {
1418             case CYBridgeVoid: {
1419             } break;
1420
1421             case CYBridgeHold: {
1422                 CYSetProperty(context, cache, property, value);
1423             } break;
1424
1425             case CYBridgeType: {
1426                 JSObjectRef swap(CYCastJSObject(context, value));
1427                 void *source(JSObjectGetPrivate(swap));
1428                 _assert(source != NULL);
1429                 void *target(JSObjectGetPrivate(stub));
1430                 _assert(JSObjectSetPrivate(swap, target));
1431                 _assert(JSObjectSetPrivate(stub, source));
1432                 value = stub;
1433             } break;
1434         }
1435
1436         return value;
1437     }
1438
1439     return NULL;
1440 } CYCatch(NULL) }
1441
1442 static JSValueRef All_complete_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1443     _assert(count == 1 || count == 2);
1444     CYPool pool;
1445     CYUTF8String prefix(CYPoolUTF8String(pool, context, CYJSString(context, arguments[0])));
1446
1447     JSObjectRef array(NULL);
1448
1449     {
1450     CYArrayBuilder<1024> values(context, array);
1451
1452     sqlite3_stmt *statement;
1453
1454     if (prefix.size == 0)
1455         _sqlcall(sqlite3_prepare(database_,
1456             "select "
1457                 "\"cache\".\"name\" "
1458             "from \"cache\" "
1459             "where"
1460                 " \"cache\".\"system\" & " CY_SYSTEM " == " CY_SYSTEM
1461         , -1, &statement, NULL));
1462     else {
1463         _sqlcall(sqlite3_prepare(database_,
1464             "select "
1465                 "\"cache\".\"name\" "
1466             "from \"cache\" "
1467             "where"
1468                 " \"cache\".\"name\" >= ? and \"cache\".\"name\" < ? and "
1469                 " \"cache\".\"system\" & " CY_SYSTEM " == " CY_SYSTEM
1470         , -1, &statement, NULL));
1471
1472         _sqlcall(sqlite3_bind_text(statement, 1, prefix.data, prefix.size, SQLITE_STATIC));
1473
1474         char *after(pool.strndup(prefix.data, prefix.size));
1475         ++after[prefix.size - 1];
1476         _sqlcall(sqlite3_bind_text(statement, 2, after, prefix.size, SQLITE_STATIC));
1477     }
1478
1479     while (_sqlcall(sqlite3_step(statement)) != SQLITE_DONE)
1480         values(CYCastJSValue(context, CYJSString(sqlite3_column_string(statement, 0))));
1481
1482     _sqlcall(sqlite3_finalize(statement));
1483     }
1484
1485     return array;
1486 } CYCatch(NULL) }
1487
1488 static void All_getPropertyNames(JSContextRef context, JSObjectRef object, JSPropertyNameAccumulatorRef names) {
1489     JSObjectRef global(CYGetGlobalObject(context));
1490     JSObjectRef cycript(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Cycript"))));
1491     JSObjectRef alls(CYCastJSObject(context, CYGetProperty(context, cycript, CYJSString("alls"))));
1492
1493     for (size_t i(0), count(CYArrayLength(context, alls)); i != count; ++i)
1494         if (JSObjectRef space = CYCastJSObject(context, CYArrayGet(context, alls, count - i - 1))) {
1495             JSPropertyNameArrayRef subset(JSObjectCopyPropertyNames(context, space));
1496             for (size_t index(0), count(JSPropertyNameArrayGetCount(subset)); index != count; ++index)
1497                 JSPropertyNameAccumulatorAddName(names, JSPropertyNameArrayGetNameAtIndex(subset, index));
1498             JSPropertyNameArrayRelease(subset);
1499         }
1500 }
1501
1502 static JSObjectRef CArray_new(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1503     _assert(false);
1504 } CYCatchObject() }
1505
1506 static JSObjectRef CString_new(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1507     _assert(false);
1508 } CYCatchObject() }
1509
1510 static JSObjectRef Pointer_new(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1511     _assert(false);
1512 } CYCatchObject() }
1513
1514 static JSObjectRef Type_new(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1515     CYPool pool;
1516
1517     if (false) {
1518     } else if (count == 1) {
1519         switch (JSValueGetType(context, arguments[0])) {
1520             case kJSTypeString: {
1521                 const char *encoding(CYPoolCString(pool, context, arguments[0]));
1522                 sig::Signature signature;
1523                 sig::Parse(pool, &signature, encoding, &Structor_);
1524                 return CYMakeType(context, *signature.elements[0].type);
1525             } break;
1526
1527             case kJSTypeObject: {
1528                 // XXX: accept a set of enum constants and /guess/ at their size
1529                 _assert(false);
1530             } break;
1531
1532             default:
1533                 throw CYJSError(context, "incorrect kind of argument to new Type");
1534         }
1535     } else if (count == 2) {
1536         JSObjectRef types(CYCastJSObject(context, arguments[0]));
1537         size_t count(CYArrayLength(context, types));
1538
1539         JSObjectRef names(CYCastJSObject(context, arguments[1]));
1540
1541         sig::Aggregate type(false);
1542         type.signature.elements = new(pool) sig::Element[count];
1543         type.signature.count = count;
1544
1545         for (size_t i(0); i != count; ++i) {
1546             sig::Element &element(type.signature.elements[i]);
1547             element.offset = _not(size_t);
1548
1549             JSValueRef name(CYArrayGet(context, names, i));
1550             if (JSValueIsUndefined(context, name))
1551                 element.name = NULL;
1552             else
1553                 element.name = CYPoolCString(pool, context, name);
1554
1555             JSObjectRef object(CYCastJSObject(context, CYArrayGet(context, types, i)));
1556             _assert(JSValueIsObjectOfClass(context, object, CYPrivate<Type_privateData>::Class_));
1557             Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
1558             element.type = internal->type_;
1559             _assert(element.type != NULL);
1560         }
1561
1562         return CYMakeType(context, type);
1563     } else {
1564         throw CYJSError(context, "incorrect number of arguments to Type constructor");
1565     }
1566 } CYCatchObject() }
1567
1568 static JSValueRef Type_callAsFunction_$With(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], sig::Callable &type, JSValueRef *exception) { CYTry {
1569     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1570
1571     CYPool pool;
1572
1573     type.signature.elements = new(pool) sig::Element[1 + count];
1574     type.signature.count = 1 + count;
1575
1576     type.signature.elements[0].name = NULL;
1577     type.signature.elements[0].type = internal->type_;
1578     type.signature.elements[0].offset = _not(size_t);
1579
1580     for (size_t i(0); i != count; ++i) {
1581         sig::Element &element(type.signature.elements[i + 1]);
1582         element.name = NULL;
1583         element.offset = _not(size_t);
1584
1585         JSObjectRef object(CYCastJSObject(context, arguments[i]));
1586         _assert(JSValueIsObjectOfClass(context, object, CYPrivate<Type_privateData>::Class_));
1587         Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
1588
1589         element.type = internal->type_;
1590     }
1591
1592     return CYMakeType(context, type);
1593 } CYCatch(NULL) }
1594
1595 static JSValueRef Type_callAsFunction_arrayOf(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1596     if (count != 1)
1597         throw CYJSError(context, "incorrect number of arguments to Type.arrayOf");
1598     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1599
1600     CYPool pool;
1601     size_t index(CYGetIndex(pool, context, CYJSString(context, arguments[0])));
1602     if (index == _not(size_t))
1603         throw CYJSError(context, "invalid array size used with Type.arrayOf");
1604
1605     sig::Array type(*internal->type_, index);
1606     return CYMakeType(context, type);
1607 } CYCatch(NULL) }
1608
1609 static JSValueRef Type_callAsFunction_blockWith(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
1610 #ifdef CY_OBJECTIVEC
1611     sig::Block type;
1612     return Type_callAsFunction_$With(context, object, _this, count, arguments, type, exception);
1613 #else
1614     _assert(false);
1615 #endif
1616 }
1617
1618 static JSValueRef Type_callAsFunction_constant(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1619     if (count != 0)
1620         throw CYJSError(context, "incorrect number of arguments to Type.constant");
1621     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1622
1623     CYPool pool;
1624     sig::Type *type(internal->type_->Copy(pool));
1625     type->flags |= JOC_TYPE_CONST;
1626     return CYMakeType(context, *type);
1627 } CYCatch(NULL) }
1628
1629 static JSValueRef Type_callAsFunction_enumFor(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1630     if (count != 1)
1631         throw CYJSError(context, "incorrect number of arguments to Type.enumFor");
1632     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1633
1634     CYPool pool;
1635
1636     JSObjectRef constants(CYCastJSObject(context, arguments[0]));
1637
1638     // XXX: this is, sadly, going to leak
1639     JSPropertyNameArrayRef names(JSObjectCopyPropertyNames(context, constants));
1640
1641     size_t count(JSPropertyNameArrayGetCount(names));
1642
1643     sig::Enum type(*internal->type_, count);
1644     type.constants = new(pool) sig::Constant[count];
1645
1646     for (size_t index(0); index != count; ++index) {
1647         JSStringRef name(JSPropertyNameArrayGetNameAtIndex(names, index));
1648         JSValueRef value(CYGetProperty(context, constants, name));
1649         _assert(JSValueGetType(context, value) == kJSTypeNumber);
1650         CYUTF8String string(CYPoolUTF8String(pool, context, name));
1651         type.constants[index].name = string.data;
1652         type.constants[index].value = CYCastDouble(context, value);
1653     }
1654
1655     JSPropertyNameArrayRelease(names);
1656
1657     return CYMakeType(context, type);
1658 } CYCatch(NULL) }
1659
1660 static JSValueRef Type_callAsFunction_functionWith(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
1661     bool variadic(count != 0 && JSValueIsNull(context, arguments[count - 1]));
1662     sig::Function type(variadic);
1663     return Type_callAsFunction_$With(context, object, _this, variadic ? count - 1 : count, arguments, type, exception);
1664 }
1665
1666 static JSValueRef Type_callAsFunction_pointerTo(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1667     if (count != 0)
1668         throw CYJSError(context, "incorrect number of arguments to Type.pointerTo");
1669     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1670
1671     if (dynamic_cast<sig::Primitive<char> *>(internal->type_) != NULL)
1672         return CYMakeType(context, sig::String());
1673     else
1674         return CYMakeType(context, sig::Pointer(*internal->type_));
1675 } CYCatch(NULL) }
1676
1677 static JSValueRef Type_callAsFunction_withName(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1678     if (count != 1)
1679         throw CYJSError(context, "incorrect number of arguments to Type.withName");
1680     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1681
1682     CYPool pool;
1683     return CYMakeType(context, *internal->type_->Copy(pool, CYPoolCString(pool, context, arguments[0])));
1684 } CYCatch(NULL) }
1685
1686 static JSValueRef Type_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1687     if (count != 1)
1688         throw CYJSError(context, "incorrect number of arguments to type cast function");
1689     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
1690
1691     if (sig::Function *function = dynamic_cast<sig::Function *>(internal->type_))
1692         return CYMakeFunctor(context, arguments[0], function->variadic, function->signature);
1693
1694     CYBuffer buffer(context);
1695
1696     sig::Type *type(internal->type_);
1697     ffi_type *ffi(internal->GetFFI());
1698
1699     void *data;
1700     if (_this == NULL || CYIsStrictEqual(context, _this, CYGetGlobalObject(context)))
1701         data = buffer->malloc<void>(ffi->size, ffi->alignment);
1702     else {
1703         CYSetProperty(context, buffer, CYJSString("$cyo"), _this, kJSPropertyAttributeDontEnum);
1704         data = CYCastPointer<void *>(context, _this);
1705     }
1706
1707     type->PoolFFI(buffer, context, ffi, data, arguments[0]);
1708     JSValueRef value(type->FromFFI(context, ffi, data, false, buffer));
1709     return value;
1710 } CYCatch(NULL) }
1711
1712 static JSObjectRef Type_callAsConstructor(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1713     if (count > 1)
1714         throw CYJSError(context, "incorrect number of arguments to Type allocator");
1715     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
1716
1717     JSObjectRef pointer(CYMakePointer(context, NULL, *internal->type_, NULL, NULL));
1718     Pointer *value(reinterpret_cast<Pointer *>(JSObjectGetPrivate(pointer)));
1719
1720     sig::Type *type(internal->type_);
1721     ffi_type *ffi(internal->GetFFI());
1722     value->value_ = value->pool_->malloc<void>(ffi->size, ffi->alignment);
1723
1724     if (count == 0)
1725         memset(value->value_, 0, ffi->size);
1726     else
1727         type->PoolFFI(value->pool_, context, ffi, value->value_, arguments[0]);
1728
1729     return pointer;
1730 } CYCatchObject() }
1731
1732 // XXX: I don't even think the user should be allowed to do this
1733 static JSObjectRef Functor_new(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1734     if (count != 2)
1735         throw CYJSError(context, "incorrect number of arguments to Functor constructor");
1736     CYPool pool;
1737     const char *encoding(CYPoolCString(pool, context, arguments[1]));
1738     sig::Signature signature;
1739     sig::Parse(pool, &signature, encoding, &Structor_);
1740     // XXX: this can try to return null, and I guess then it just fails
1741     return CYCastJSObject(context, CYMakeFunctor(context, arguments[0], false, signature));
1742 } CYCatchObject() }
1743
1744 static JSValueRef CArray_callAsFunction_toPointer(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1745     CArray *internal(reinterpret_cast<CArray *>(JSObjectGetPrivate(_this)));
1746     JSObjectRef owner(internal->owner_ ?: object);
1747     return CYMakePointer(context, internal->value_, *internal->type_->type_, NULL, owner);
1748 } CYCatch(NULL) }
1749
1750 static JSValueRef CString_callAsFunction_toPointer(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1751     CString *internal(reinterpret_cast<CString *>(JSObjectGetPrivate(_this)));
1752     JSObjectRef owner(internal->owner_ ?: object);
1753     return CYMakePointer(context, internal->value_, sig::Primitive<char>(), NULL, owner);
1754 } CYCatch(NULL) }
1755
1756 static JSValueRef Functor_callAsFunction_$cya(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1757     CYPool pool;
1758     cy::Functor *internal(reinterpret_cast<cy::Functor *>(JSObjectGetPrivate(_this)));
1759
1760     sig::Function type(internal->variadic_);
1761     sig::Copy(pool, type.signature, internal->signature_);
1762
1763     return CYMakePointer(context, reinterpret_cast<void *>(internal->value_), type, NULL, NULL);
1764 } CYCatch(NULL) }
1765
1766 static JSValueRef Pointer_callAsFunction_toPointer(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1767     return _this;
1768 } CYCatch(NULL) }
1769
1770 static JSValueRef CArray_callAsFunction_valueOf(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1771     CArray *internal(reinterpret_cast<CArray *>(JSObjectGetPrivate(_this)));
1772     return CYCastJSValue(context, reinterpret_cast<uintptr_t>(internal->value_));
1773 } CYCatch(NULL) }
1774
1775 static JSValueRef Pointer_callAsFunction_valueOf(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1776     Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(_this)));
1777     return CYCastJSValue(context, reinterpret_cast<uintptr_t>(internal->value_));
1778 } CYCatch(NULL) }
1779
1780 static JSValueRef Functor_callAsFunction_valueOf(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1781     cy::Functor *internal(reinterpret_cast<cy::Functor *>(JSObjectGetPrivate(_this)));
1782     return CYCastJSValue(context, reinterpret_cast<uintptr_t>(internal->value_));
1783 } CYCatch(NULL) }
1784
1785 static JSValueRef Functor_callAsFunction_toCYON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1786     cy::Functor *internal(reinterpret_cast<cy::Functor *>(JSObjectGetPrivate(_this)));
1787     uint8_t *value(reinterpret_cast<uint8_t *>(internal->value_));
1788     _assert(value != NULL);
1789
1790     CYLocalPool pool;
1791
1792     sig::Function function(internal->variadic_);
1793     sig::Copy(pool, function.signature, internal->signature_);
1794
1795     CYPropertyName *name(internal->GetName(pool));
1796     auto typed(CYDecodeType(pool, &function));
1797
1798     std::ostringstream str;
1799     CYOptions options;
1800     CYOutput output(*str.rdbuf(), options);
1801     output.pretty_ = true;
1802     (new(pool) CYExternalExpression(new(pool) CYString("C"), typed, name))->Output(output, CYNoFlags);
1803     return CYCastJSValue(context, CYJSString(str.str()));
1804 } CYCatch(NULL) }
1805
1806 CYPropertyName *cy::Functor::GetName(CYPool &pool) const {
1807     Dl_info info;
1808     if (dladdr(reinterpret_cast<void *>(value_), &info) == 0 || strcmp(info.dli_sname, "<redacted>") == 0)
1809         return new(pool) CYNumber(reinterpret_cast<uintptr_t>(value_));
1810
1811     std::ostringstream str;
1812     str << info.dli_sname;
1813     off_t offset(reinterpret_cast<uint8_t *>(value_) - reinterpret_cast<uint8_t *>(info.dli_saddr));
1814     if (offset != 0)
1815         str << "+0x" << std::hex << offset;
1816     return new(pool) CYString(pool.strdup(str.str().c_str()));
1817 }
1818
1819 static JSValueRef Pointer_callAsFunction_toCYON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1820     std::set<void *> *objects(CYCastObjects(context, _this, count, arguments));
1821
1822     Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(_this)));
1823
1824     try {
1825         JSValueRef value(CYGetProperty(context, _this, cyi_s));
1826         if (!JSValueIsUndefined(context, value)) {
1827             CYPool pool;
1828             return CYCastJSValue(context, pool.strcat("&", CYPoolCCYON(pool, context, value, objects), NULL));
1829         }
1830     } catch (const CYException &e) {
1831         // XXX: it might be interesting to include this error
1832     }
1833
1834     CYLocalPool pool;
1835     std::ostringstream str;
1836
1837     sig::Pointer type(*internal->type_->type_);
1838
1839     CYOptions options;
1840     CYOutput output(*str.rdbuf(), options);
1841     (new(pool) CYTypeExpression(CYDecodeType(pool, &type)))->Output(output, CYNoFlags);
1842
1843     str << "(" << internal->value_ << ")";
1844     std::string value(str.str());
1845     return CYCastJSValue(context, CYJSString(CYUTF8String(value.c_str(), value.size())));
1846 } CYCatch(NULL) }
1847
1848 static JSValueRef CString_getProperty_length(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1849     CString *internal(reinterpret_cast<CString *>(JSObjectGetPrivate(object)));
1850     return CYCastJSValue(context, strlen(internal->value_));
1851 } CYCatch(NULL) }
1852
1853 static JSValueRef CString_getProperty_$cyt(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1854     return CYMakeType(context, sig::String());
1855 } CYCatch(NULL) }
1856
1857 static JSValueRef CArray_getProperty_$cyt(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1858     CArray *internal(reinterpret_cast<CArray *>(JSObjectGetPrivate(object)));
1859     sig::Array type(*internal->type_->type_, internal->length_);
1860     return CYMakeType(context, type);
1861 } CYCatch(NULL) }
1862
1863 static JSValueRef Pointer_getProperty_$cyt(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1864     Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(object)));
1865     sig::Pointer type(*internal->type_->type_);
1866     return CYMakeType(context, type);
1867 } CYCatch(NULL) }
1868
1869 static JSValueRef CString_callAsFunction_toCYON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1870     CString *internal(reinterpret_cast<CString *>(JSObjectGetPrivate(_this)));
1871     const char *string(internal->value_);
1872     std::ostringstream str;
1873     if (string == NULL)
1874         str << "NULL";
1875     else {
1876         str << "&";
1877         CYStringify(str, string, strlen(string), CYStringifyModeNative);
1878     }
1879     std::string value(str.str());
1880     return CYCastJSValue(context, CYJSString(CYUTF8String(value.c_str(), value.size())));
1881 } CYCatch(NULL) }
1882
1883 static JSValueRef CString_callAsFunction_toString(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1884     CString *internal(reinterpret_cast<CString *>(JSObjectGetPrivate(_this)));
1885     return CYCastJSValue(context, internal->value_);
1886 } CYCatch(NULL) }
1887
1888 static JSValueRef Functor_getProperty_$cyt(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1889     cy::Functor *internal(reinterpret_cast<cy::Functor *>(JSObjectGetPrivate(object)));
1890     CYPool pool;
1891     sig::Function type(internal->variadic_);
1892     sig::Copy(pool, type.signature, internal->signature_);
1893     return CYMakeType(context, type);
1894 } CYCatch(NULL) }
1895
1896 static JSValueRef Type_getProperty_alignment(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1897     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
1898     return CYCastJSValue(context, internal->GetFFI()->alignment);
1899 } CYCatch(NULL) }
1900
1901 static JSValueRef Type_getProperty_name(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1902     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
1903     return CYCastJSValue(context, internal->type_->GetName());
1904 } CYCatch(NULL) }
1905
1906 static JSValueRef Type_getProperty_size(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1907     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
1908     return CYCastJSValue(context, internal->GetFFI()->size);
1909 } CYCatch(NULL) }
1910
1911 static JSValueRef Type_callAsFunction_toString(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1912     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1913     CYPool pool;
1914     const char *type(sig::Unparse(pool, internal->type_));
1915     return CYCastJSValue(context, CYJSString(type));
1916 } CYCatch(NULL) }
1917
1918 static JSValueRef Type_callAsFunction_toCYON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1919     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1920     CYLocalPool pool;
1921     std::stringbuf out;
1922     CYOptions options;
1923     CYOutput output(out, options);
1924     output.pretty_ = true;
1925     (new(pool) CYTypeExpression(CYDecodeType(pool, internal->type_->Copy(pool, ""))))->Output(output, CYNoFlags);
1926     return CYCastJSValue(context, CYJSString(out.str().c_str()));
1927 } CYCatch(NULL) }
1928
1929 static JSStaticFunction All_staticFunctions[2] = {
1930     {"cy$complete", &All_complete_callAsFunction, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1931     {NULL, NULL, 0}
1932 };
1933
1934 static JSStaticFunction CArray_staticFunctions[3] = {
1935     {"toPointer", &CArray_callAsFunction_toPointer, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1936     {"valueOf", &CArray_callAsFunction_valueOf, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1937     {NULL, NULL, 0}
1938 };
1939
1940 static JSStaticValue CArray_staticValues[2] = {
1941     {"$cyt", &CArray_getProperty_$cyt, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1942     {NULL, NULL, NULL, 0}
1943 };
1944
1945 static JSStaticFunction CString_staticFunctions[5] = {
1946     {"toCYON", &CString_callAsFunction_toCYON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1947     {"toPointer", &CString_callAsFunction_toPointer, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1948     {"toString", &CString_callAsFunction_toString, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1949     {"valueOf", &CString_callAsFunction_toString, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1950     {NULL, NULL, 0}
1951 };
1952
1953 static JSStaticValue CString_staticValues[3] = {
1954     {"length", &CString_getProperty_length, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1955     {"$cyt", &CString_getProperty_$cyt, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1956     {NULL, NULL, NULL, 0}
1957 };
1958
1959 static JSStaticFunction Pointer_staticFunctions[4] = {
1960     {"toCYON", &Pointer_callAsFunction_toCYON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1961     {"toPointer", &Pointer_callAsFunction_toPointer, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1962     {"valueOf", &Pointer_callAsFunction_valueOf, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1963     {NULL, NULL, 0}
1964 };
1965
1966 static JSStaticValue Pointer_staticValues[2] = {
1967     {"$cyt", &Pointer_getProperty_$cyt, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1968     {NULL, NULL, NULL, 0}
1969 };
1970
1971 static JSStaticFunction Struct_staticFunctions[2] = {
1972     {"$cya", &Struct_callAsFunction_$cya, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1973     {NULL, NULL, 0}
1974 };
1975
1976 static JSStaticValue Struct_staticValues[2] = {
1977     {"$cyt", &Struct_getProperty_$cyt, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1978     {NULL, NULL, NULL, 0}
1979 };
1980
1981 static JSStaticFunction Functor_staticFunctions[4] = {
1982     {"$cya", &Functor_callAsFunction_$cya, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1983     {"toCYON", &Functor_callAsFunction_toCYON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1984     {"valueOf", &Functor_callAsFunction_valueOf, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1985     {NULL, NULL, 0}
1986 };
1987
1988 static JSStaticValue Functor_staticValues[2] = {
1989     {"$cyt", &Functor_getProperty_$cyt, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1990     {NULL, NULL, NULL, 0}
1991 };
1992
1993 static JSStaticValue Type_staticValues[4] = {
1994     {"alignment", &Type_getProperty_alignment, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1995     {"name", &Type_getProperty_name, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1996     {"size", &Type_getProperty_size, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1997     {NULL, NULL, NULL, 0}
1998 };
1999
2000 static JSStaticFunction Type_staticFunctions[10] = {
2001     {"arrayOf", &Type_callAsFunction_arrayOf, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2002     {"blockWith", &Type_callAsFunction_blockWith, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2003     {"constant", &Type_callAsFunction_constant, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2004     {"enumFor", &Type_callAsFunction_enumFor, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2005     {"functionWith", &Type_callAsFunction_functionWith, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2006     {"pointerTo", &Type_callAsFunction_pointerTo, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2007     {"withName", &Type_callAsFunction_withName, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2008     {"toCYON", &Type_callAsFunction_toCYON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2009     {"toString", &Type_callAsFunction_toString, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2010     {NULL, NULL, 0}
2011 };
2012
2013 _visible void CYSetArgs(const char *argv0, const char *script, int argc, const char *argv[]) {
2014     JSContextRef context(CYGetJSContext());
2015     JSValueRef args[argc + 2];
2016     for (int i(0); i != argc; ++i)
2017         args[i + 2] = CYCastJSValue(context, argv[i]);
2018
2019     size_t offset;
2020     if (script == NULL)
2021         offset = 1;
2022     else {
2023         offset = 0;
2024         args[1] = CYCastJSValue(context, CYJSString(script));
2025     }
2026
2027     args[offset] = CYCastJSValue(context, CYJSString(argv0));
2028
2029     CYSetProperty(context, CYGetCachedObject(context, CYJSString("System")), CYJSString("args"), CYObjectMakeArray(context, argc, args + 2));
2030     CYSetProperty(context, CYGetCachedObject(context, CYJSString("process")), CYJSString("argv"), CYObjectMakeArray(context, argc + 2 - offset, args + offset));
2031 }
2032
2033 JSObjectRef CYGetGlobalObject(JSContextRef context) {
2034     return JSContextGetGlobalObject(context);
2035 }
2036
2037 // XXX: this is neither exceptin safe nor even terribly sane
2038 class ExecutionHandle {
2039   private:
2040     JSContextRef context_;
2041     std::vector<void *> handles_;
2042
2043   public:
2044     ExecutionHandle(JSContextRef context) :
2045         context_(context)
2046     {
2047         handles_.resize(GetHooks().size());
2048         for (size_t i(0); i != GetHooks().size(); ++i) {
2049             CYHook *hook(GetHooks()[i]);
2050             if (hook->ExecuteStart != NULL)
2051                 handles_[i] = (*hook->ExecuteStart)(context_);
2052             else
2053                 handles_[i] = NULL;
2054         }
2055     }
2056
2057     ~ExecutionHandle() {
2058         for (size_t i(GetHooks().size()); i != 0; --i) {
2059             CYHook *hook(GetHooks()[i-1]);
2060             if (hook->ExecuteEnd != NULL)
2061                 (*hook->ExecuteEnd)(context_, handles_[i-1]);
2062         }
2063     }
2064 };
2065
2066 #ifndef __ANDROID__
2067 static volatile bool cancel_;
2068
2069 static bool CYShouldTerminate(JSContextRef context, void *arg) {
2070     return cancel_;
2071 }
2072 #endif
2073
2074 _visible const char *CYExecute(JSContextRef context, CYPool &pool, CYUTF8String code) {
2075     ExecutionHandle handle(context);
2076
2077 #ifndef __ANDROID__
2078     cancel_ = false;
2079     if (&JSContextGroupSetExecutionTimeLimit != NULL)
2080         JSContextGroupSetExecutionTimeLimit(JSContextGetGroup(context), 0.5, &CYShouldTerminate, NULL);
2081 #endif
2082
2083     try {
2084         JSValueRef result(_jsccall(JSEvaluateScript, context, CYJSString(code), NULL, NULL, 0));
2085         if (JSValueIsUndefined(context, result))
2086             return NULL;
2087
2088         std::set<void *> objects;
2089         const char *json(_jsccall(CYPoolCCYON, pool, context, result, objects));
2090         CYSetProperty(context, CYGetGlobalObject(context), Result_, result);
2091
2092         return json;
2093     } catch (const CYException &error) {
2094         return pool.strcat("throw ", error.PoolCString(pool), NULL);
2095     }
2096 }
2097
2098 #ifndef __ANDROID__
2099 _visible void CYCancel() {
2100     cancel_ = true;
2101 }
2102 #endif
2103
2104 const char *CYPoolLibraryPath(CYPool &pool);
2105
2106 static bool initialized_ = false;
2107
2108 void CYInitializeDynamic() {
2109     if (!initialized_)
2110         initialized_ = true;
2111     else return;
2112
2113     CYPool pool;
2114     const char *db(pool.strcat(CYPoolLibraryPath(pool), "/libcycript.db", NULL));
2115     _sqlcall(sqlite3_open_v2(db, &database_, SQLITE_OPEN_READONLY, NULL));
2116
2117     JSObjectMakeArray$ = reinterpret_cast<JSObjectRef (*)(JSContextRef, size_t, const JSValueRef[], JSValueRef *)>(dlsym(RTLD_DEFAULT, "JSObjectMakeArray"));
2118     JSSynchronousGarbageCollectForDebugging$ = reinterpret_cast<void (*)(JSContextRef)>(dlsym(RTLD_DEFAULT, "JSSynchronousGarbageCollectForDebugging"));
2119
2120     JSClassDefinition definition;
2121
2122     definition = kJSClassDefinitionEmpty;
2123     definition.className = "All";
2124     definition.staticFunctions = All_staticFunctions;
2125     definition.hasProperty = &All_hasProperty;
2126     definition.getProperty = &All_getProperty;
2127     definition.getPropertyNames = &All_getPropertyNames;
2128     All_ = JSClassCreate(&definition);
2129
2130     definition = kJSClassDefinitionEmpty;
2131     definition.className = "Context";
2132     definition.finalize = &CYFinalize;
2133     CYPrivate<Context>::Class_ = JSClassCreate(&definition);
2134
2135     definition = kJSClassDefinitionEmpty;
2136     definition.className = "CArray";
2137     definition.staticFunctions = CArray_staticFunctions;
2138     definition.staticValues = CArray_staticValues;
2139     definition.getProperty = &CArray_getProperty;
2140     definition.setProperty = &CArray_setProperty;
2141     definition.finalize = &CYFinalize;
2142     CYPrivate<CArray>::Class_ = JSClassCreate(&definition);
2143
2144     definition = kJSClassDefinitionEmpty;
2145     definition.className = "CString";
2146     definition.staticFunctions = CString_staticFunctions;
2147     definition.staticValues = CString_staticValues;
2148     definition.getProperty = &CString_getProperty;
2149     definition.setProperty = &CString_setProperty;
2150     definition.finalize = &CYFinalize;
2151     CYPrivate<CString>::Class_ = JSClassCreate(&definition);
2152
2153     definition = kJSClassDefinitionEmpty;
2154     definition.className = "Functor";
2155     definition.staticFunctions = Functor_staticFunctions;
2156     definition.staticValues = Functor_staticValues;
2157     definition.callAsFunction = &Functor_callAsFunction;
2158     definition.finalize = &CYFinalize;
2159     cy::Functor::Class_ = JSClassCreate(&definition);
2160
2161     definition = kJSClassDefinitionEmpty;
2162     definition.className = "Pointer";
2163     definition.staticFunctions = Pointer_staticFunctions;
2164     definition.staticValues = Pointer_staticValues;
2165     definition.callAsFunction = &Pointer_callAsFunction;
2166     definition.getProperty = &Pointer_getProperty;
2167     definition.setProperty = &Pointer_setProperty;
2168     definition.finalize = &CYFinalize;
2169     CYPrivate<Pointer>::Class_ = JSClassCreate(&definition);
2170
2171     definition = kJSClassDefinitionEmpty;
2172     definition.className = "Root";
2173     definition.finalize = &CYFinalize;
2174     CYPrivate<CYRoot>::Class_ = JSClassCreate(&definition);
2175
2176     definition = kJSClassDefinitionEmpty;
2177     definition.className = "Struct";
2178     definition.staticFunctions = Struct_staticFunctions;
2179     definition.staticValues = Struct_staticValues;
2180     definition.getProperty = &Struct_getProperty;
2181     definition.setProperty = &Struct_setProperty;
2182     definition.getPropertyNames = &Struct_getPropertyNames;
2183     definition.finalize = &CYFinalize;
2184     CYPrivate<Struct_privateData>::Class_ = JSClassCreate(&definition);
2185
2186     definition = kJSClassDefinitionEmpty;
2187     definition.className = "Type";
2188     definition.staticValues = Type_staticValues;
2189     definition.staticFunctions = Type_staticFunctions;
2190     definition.callAsFunction = &Type_callAsFunction;
2191     definition.callAsConstructor = &Type_callAsConstructor;
2192     definition.finalize = &CYFinalize;
2193     CYPrivate<Type_privateData>::Class_ = JSClassCreate(&definition);
2194
2195     definition = kJSClassDefinitionEmpty;
2196     definition.className = "Global";
2197     //definition.getProperty = &Global_getProperty;
2198     Global_ = JSClassCreate(&definition);
2199
2200     Array_s = JSStringCreateWithUTF8CString("Array");
2201     constructor_s = JSStringCreateWithUTF8CString("constructor");
2202     cy_s = JSStringCreateWithUTF8CString("$cy");
2203     cyi_s = JSStringCreateWithUTF8CString("$cyi");
2204     cyt_s = JSStringCreateWithUTF8CString("$cyt");
2205     length_s = JSStringCreateWithUTF8CString("length");
2206     message_s = JSStringCreateWithUTF8CString("message");
2207     name_s = JSStringCreateWithUTF8CString("name");
2208     pop_s = JSStringCreateWithUTF8CString("pop");
2209     prototype_s = JSStringCreateWithUTF8CString("prototype");
2210     push_s = JSStringCreateWithUTF8CString("push");
2211     splice_s = JSStringCreateWithUTF8CString("splice");
2212     toCYON_s = JSStringCreateWithUTF8CString("toCYON");
2213     toJSON_s = JSStringCreateWithUTF8CString("toJSON");
2214     toPointer_s = JSStringCreateWithUTF8CString("toPointer");
2215     toString_s = JSStringCreateWithUTF8CString("toString");
2216     weak_s = JSStringCreateWithUTF8CString("weak");
2217
2218     Result_ = JSStringCreateWithUTF8CString("_");
2219
2220     for (CYHook *hook : GetHooks())
2221         if (hook->Initialize != NULL)
2222             (*hook->Initialize)();
2223 }
2224
2225 void CYThrow(JSContextRef context, JSValueRef value) {
2226     if (value != NULL)
2227         throw CYJSError(context, value);
2228 }
2229
2230 const char *CYJSError::PoolCString(CYPool &pool) const {
2231     std::set<void *> objects;
2232     // XXX: this used to be CYPoolCString
2233     return CYPoolCCYON(pool, context_, value_, objects);
2234 }
2235
2236 JSValueRef CYJSError::CastJSValue(JSContextRef context, const char *name) const {
2237     // XXX: what if the context is different? or the name? I dunno. ("epic" :/)
2238     return value_;
2239 }
2240
2241 JSValueRef CYCastJSError(JSContextRef context, const char *name, const char *message) {
2242     JSObjectRef Error(CYGetCachedObject(context, CYJSString(name)));
2243     JSValueRef arguments[1] = {CYCastJSValue(context, message)};
2244     return _jsccall(JSObjectCallAsConstructor, context, Error, 1, arguments);
2245 }
2246
2247 JSValueRef CYPoolError::CastJSValue(JSContextRef context, const char *name) const {
2248     return CYCastJSError(context, name, message_);
2249 }
2250
2251 CYJSError::CYJSError(JSContextRef context, const char *format, ...) {
2252     _assert(context != NULL);
2253
2254     CYPool pool;
2255
2256     va_list args;
2257     va_start(args, format);
2258     // XXX: there might be a beter way to think about this
2259     const char *message(pool.vsprintf(64, format, args));
2260     va_end(args);
2261
2262     value_ = CYCastJSError(context, "Error", message);
2263 }
2264
2265 JSGlobalContextRef CYGetJSContext(JSContextRef context) {
2266     return reinterpret_cast<Context *>(JSObjectGetPrivate(CYCastJSObject(context, CYGetProperty(context, CYGetGlobalObject(context), cy_s))))->context_;
2267 }
2268
2269 #ifdef __ANDROID__
2270 char *CYPoolLibraryPath_(CYPool &pool) {
2271     FILE *maps(fopen("/proc/self/maps", "r"));
2272     struct F { FILE *f; F(FILE *f) : f(f) {}
2273         ~F() { fclose(f); } } f(maps);
2274
2275     size_t function(reinterpret_cast<size_t>(&CYPoolLibraryPath));
2276
2277     for (;;) {
2278         size_t start; size_t end; char flags[8]; unsigned long long offset;
2279         int major; int minor; unsigned long long inode; char file[1024];
2280         int count(fscanf(maps, "%zx-%zx %7s %llx %x:%x %llu%[ ]%1024[^\n]\n",
2281             &start, &end, flags, &offset, &major, &minor, &inode, file, file));
2282         if (count < 8) break; else if (start <= function && function < end)
2283             return pool.strdup(file);
2284     }
2285
2286     _assert(false);
2287 }
2288 #else
2289 char *CYPoolLibraryPath_(CYPool &pool) {
2290     Dl_info addr;
2291     _assert(dladdr(reinterpret_cast<void *>(&CYPoolLibraryPath), &addr) != 0);
2292     return pool.strdup(addr.dli_fname);
2293 }
2294 #endif
2295
2296 const char *CYPoolLibraryPath(CYPool &pool) {
2297     char *lib(CYPoolLibraryPath_(pool));
2298
2299     char *slash(strrchr(lib, '/'));
2300     if (slash == NULL)
2301         return ".";
2302     *slash = '\0';
2303
2304     slash = strrchr(lib, '/');
2305     if (slash != NULL) {
2306         if (strcmp(slash, "/.libs") == 0)
2307             *slash = '\0';
2308     } else if (strcmp(lib, ".libs") == 0)
2309         return ".";
2310
2311     return lib;
2312 }
2313
2314 static JSValueRef require_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
2315     _assert(count == 1);
2316     CYPool pool;
2317
2318     CYUTF8String name(CYPoolUTF8String(pool, context, CYJSString(context, arguments[0])));
2319     if (memchr(name.data, '/', name.size) == NULL && (
2320 #ifdef __APPLE__
2321         dlopen(pool.strcat("/System/Library/Frameworks/", name.data, ".framework/", name.data, NULL), RTLD_LAZY | RTLD_GLOBAL) != NULL ||
2322         dlopen(pool.strcat("/System/Library/PrivateFrameworks/", name.data, ".framework/", name.data, NULL), RTLD_LAZY | RTLD_GLOBAL) != NULL ||
2323 #endif
2324     false))
2325         return CYJSUndefined(context);
2326
2327     CYJSString path;
2328     CYUTF8String code;
2329
2330     sqlite3_stmt *statement;
2331
2332     _sqlcall(sqlite3_prepare(database_,
2333         "select "
2334             "\"module\".\"code\", "
2335             "\"module\".\"flags\" "
2336         "from \"module\" "
2337         "where"
2338             " \"module\".\"name\" = ?"
2339         " limit 1"
2340     , -1, &statement, NULL));
2341
2342     _sqlcall(sqlite3_bind_text(statement, 1, name.data, name.size, SQLITE_STATIC));
2343
2344     if (_sqlcall(sqlite3_step(statement)) != SQLITE_DONE) {
2345         code.data = static_cast<const char *>(sqlite3_column_blob(statement, 0));
2346         code.size = sqlite3_column_bytes(statement, 0);
2347         path = CYJSString(name);
2348         code = CYPoolUTF8String(pool, code);
2349     } else {
2350         JSObjectRef resolve(CYCastJSObject(context, CYGetProperty(context, object, CYJSString("resolve"))));
2351         path = CYJSString(context, CYCallAsFunction(context, resolve, NULL, 1, arguments));
2352     }
2353
2354     _sqlcall(sqlite3_finalize(statement));
2355
2356     CYJSString property("exports");
2357
2358     JSObjectRef modules(CYGetCachedObject(context, CYJSString("modules")));
2359     JSValueRef cache(CYGetProperty(context, modules, path));
2360
2361     JSValueRef result;
2362     if (!JSValueIsUndefined(context, cache)) {
2363         JSObjectRef module(CYCastJSObject(context, cache));
2364         result = CYGetProperty(context, module, property);
2365     } else {
2366         if (code.data == NULL) {
2367             code = CYPoolFileUTF8String(pool, CYPoolCString(pool, context, path));
2368             _assert(code.data != NULL);
2369         }
2370
2371         size_t length(name.size);
2372         if (length >= 5 && strncmp(name.data + length - 5, ".json", 5) == 0) {
2373             JSObjectRef JSON(CYGetCachedObject(context, CYJSString("JSON")));
2374             JSObjectRef parse(CYCastJSObject(context, CYGetProperty(context, JSON, CYJSString("parse"))));
2375             JSValueRef arguments[1] = { CYCastJSValue(context, CYJSString(code)) };
2376             result = CYCallAsFunction(context, parse, JSON, 1, arguments);
2377         } else {
2378             JSObjectRef module(JSObjectMake(context, NULL, NULL));
2379             CYSetProperty(context, modules, path, module);
2380
2381             JSObjectRef exports(JSObjectMake(context, NULL, NULL));
2382             CYSetProperty(context, module, property, exports);
2383
2384             std::stringstream wrap;
2385             wrap << "(function (exports, require, module, __filename) { " << code << "\n});";
2386             code = CYPoolCode(pool, *wrap.rdbuf());
2387
2388             JSValueRef value(_jsccall(JSEvaluateScript, context, CYJSString(code), NULL, NULL, 0));
2389             JSObjectRef function(CYCastJSObject(context, value));
2390
2391             JSValueRef arguments[4] = { exports, object, module, CYCastJSValue(context, path) };
2392             CYCallAsFunction(context, function, NULL, 4, arguments);
2393             result = CYGetProperty(context, module, property);
2394         }
2395     }
2396
2397     return result;
2398 } CYCatch(NULL) }
2399
2400 static bool CYRunScript(JSGlobalContextRef context, const char *path) {
2401     CYPool pool;
2402     CYUTF8String code(CYPoolFileUTF8String(pool, pool.strcat(CYPoolLibraryPath(pool), path, NULL)));
2403     if (code.data == NULL)
2404         return false;
2405
2406     code = CYPoolCode(pool, code);
2407     _jsccall(JSEvaluateScript, context, CYJSString(code), NULL, NULL, 0);
2408     return true;
2409 }
2410
2411 extern "C" void CYDestroyWeak(JSWeakObjectMapRef weak, void *data) {
2412 }
2413
2414 extern "C" void CYSetupContext(JSGlobalContextRef context) {
2415     CYInitializeDynamic();
2416
2417     JSObjectRef global(CYGetGlobalObject(context));
2418
2419     JSObjectRef cy(CYPrivate<Context>::Make(context, context));
2420     CYSetProperty(context, global, cy_s, cy, kJSPropertyAttributeDontEnum);
2421
2422 /* Cache Globals {{{ */
2423     JSObjectRef Array(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Array"))));
2424     CYSetProperty(context, cy, CYJSString("Array"), Array);
2425
2426     JSObjectRef Array_prototype(CYCastJSObject(context, CYGetProperty(context, Array, prototype_s)));
2427     CYSetProperty(context, cy, CYJSString("Array_prototype"), Array_prototype);
2428
2429     JSObjectRef Boolean(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Boolean"))));
2430     CYSetProperty(context, cy, CYJSString("Boolean"), Boolean);
2431
2432     JSObjectRef Boolean_prototype(CYCastJSObject(context, CYGetProperty(context, Boolean, prototype_s)));
2433     CYSetProperty(context, cy, CYJSString("Boolean_prototype"), Boolean_prototype);
2434
2435     JSObjectRef Error(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Error"))));
2436     CYSetProperty(context, cy, CYJSString("Error"), Error);
2437
2438     JSObjectRef Function(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Function"))));
2439     CYSetProperty(context, cy, CYJSString("Function"), Function);
2440
2441     JSObjectRef Function_prototype(CYCastJSObject(context, CYGetProperty(context, Function, prototype_s)));
2442     CYSetProperty(context, cy, CYJSString("Function_prototype"), Function_prototype);
2443
2444     JSObjectRef JSON(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("JSON"))));
2445     CYSetProperty(context, cy, CYJSString("JSON"), JSON);
2446
2447     JSObjectRef Number(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Number"))));
2448     CYSetProperty(context, cy, CYJSString("Number"), Number);
2449
2450     JSObjectRef Number_prototype(CYCastJSObject(context, CYGetProperty(context, Number, prototype_s)));
2451     CYSetProperty(context, cy, CYJSString("Number_prototype"), Number_prototype);
2452
2453     JSObjectRef Object(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Object"))));
2454     CYSetProperty(context, cy, CYJSString("Object"), Object);
2455
2456     JSObjectRef Object_prototype(CYCastJSObject(context, CYGetProperty(context, Object, prototype_s)));
2457     CYSetProperty(context, cy, CYJSString("Object_prototype"), Object_prototype);
2458
2459     JSObjectRef String(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("String"))));
2460     CYSetProperty(context, cy, CYJSString("String"), String);
2461
2462     JSObjectRef String_prototype(CYCastJSObject(context, CYGetProperty(context, String, prototype_s)));
2463     CYSetProperty(context, cy, CYJSString("String_prototype"), String_prototype);
2464
2465     JSObjectRef SyntaxError(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("SyntaxError"))));
2466     CYSetProperty(context, cy, CYJSString("SyntaxError"), SyntaxError);
2467 /* }}} */
2468
2469     CYSetProperty(context, Array_prototype, toCYON_s, &Array_callAsFunction_toCYON, kJSPropertyAttributeDontEnum);
2470     CYSetProperty(context, String_prototype, toCYON_s, &String_callAsFunction_toCYON, kJSPropertyAttributeDontEnum);
2471
2472     JSObjectRef cycript(JSObjectMake(context, NULL, NULL));
2473     CYSetProperty(context, global, CYJSString("Cycript"), cycript);
2474     CYSetProperty(context, cycript, CYJSString("compile"), &Cycript_compile_callAsFunction);
2475     CYSetProperty(context, cycript, CYJSString("gc"), &Cycript_gc_callAsFunction);
2476
2477     JSObjectRef CArray(JSObjectMakeConstructor(context, CYPrivate<::CArray>::Class_, &CArray_new));
2478     CYSetPrototype(context, CYCastJSObject(context, CYGetProperty(context, CArray, prototype_s)), Array_prototype);
2479     CYSetProperty(context, cycript, CYJSString("CArray"), CArray);
2480
2481     JSObjectRef CString(JSObjectMakeConstructor(context, CYPrivate<::CString>::Class_, &CString_new));
2482     CYSetPrototype(context, CYCastJSObject(context, CYGetProperty(context, CString, prototype_s)), String_prototype);
2483     CYSetProperty(context, cycript, CYJSString("CString"), CString);
2484
2485     JSObjectRef Functor(JSObjectMakeConstructor(context, cy::Functor::Class_, &Functor_new));
2486     JSObjectRef Functor_prototype(CYCastJSObject(context, CYGetProperty(context, Functor, prototype_s)));
2487     CYSetPrototype(context, Functor_prototype, Function_prototype);
2488     CYSetProperty(context, cy, CYJSString("Functor_prototype"), Functor_prototype);
2489     CYSetProperty(context, cycript, CYJSString("Functor"), Functor);
2490
2491     CYSetProperty(context, cycript, CYJSString("Pointer"), JSObjectMakeConstructor(context, CYPrivate<Pointer>::Class_, &Pointer_new));
2492
2493     JSObjectRef Type(JSObjectMakeConstructor(context, CYPrivate<Type_privateData>::Class_, &Type_new));
2494     JSObjectRef Type_prototype(CYCastJSObject(context, CYGetProperty(context, Type, prototype_s)));
2495     CYSetPrototype(context, Type_prototype, Function_prototype);
2496     CYSetProperty(context, cy, CYJSString("Type_prototype"), Type_prototype);
2497     CYSetProperty(context, cycript, CYJSString("Type"), Type);
2498
2499     JSObjectRef Character_prototype(JSObjectMake(context, NULL, NULL));
2500     CYSetPrototype(context, Character_prototype, String_prototype);
2501     CYSetProperty(context, cy, CYJSString("Character_prototype"), Character_prototype);
2502     CYSetProperty(context, Character_prototype, CYJSString("valueOf"), _jsccall(JSEvaluateScript, context, CYJSString("(function(){return this.charCodeAt(0);})"), NULL, NULL, 0));
2503
2504     JSObjectRef modules(JSObjectMake(context, NULL, NULL));
2505     CYSetProperty(context, cy, CYJSString("modules"), modules);
2506
2507     JSObjectRef all(JSObjectMake(context, All_, NULL));
2508     CYSetProperty(context, cycript, CYJSString("all"), all);
2509
2510     JSObjectRef cache(JSObjectMake(context, NULL, NULL));
2511     CYSetProperty(context, cy, CYJSString("cache"), cache);
2512     CYSetPrototype(context, cache, all);
2513
2514     JSObjectRef alls(_jsccall(JSObjectCallAsConstructor, context, Array, 0, NULL));
2515     CYSetProperty(context, cycript, CYJSString("alls"), alls);
2516
2517     if (true) {
2518         JSObjectRef last(NULL), curr(global);
2519
2520         goto next; for (JSValueRef next;;) {
2521             if (JSValueIsNull(context, next))
2522                 break;
2523             last = curr;
2524             curr = CYCastJSObject(context, next);
2525           next:
2526             next = JSObjectGetPrototype(context, curr);
2527         }
2528
2529         CYSetPrototype(context, last, cache);
2530     }
2531
2532 #ifdef __APPLE__
2533     if (&JSWeakObjectMapCreate != NULL) {
2534         JSWeakObjectMapRef weak(JSWeakObjectMapCreate(context, NULL, &CYDestroyWeak));
2535         CYSetProperty(context, cy, weak_s, CYCastJSValue(context, reinterpret_cast<uintptr_t>(weak)));
2536     }
2537 #endif
2538
2539     CYSetProperty(context, String_prototype, cyt_s, CYMakeType(context, sig::String()), kJSPropertyAttributeDontEnum);
2540
2541     CYSetProperty(context, cache, CYJSString("dlerror"), CYMakeFunctor(context, "dlerror", "*"), kJSPropertyAttributeDontEnum);
2542     CYSetProperty(context, cache, CYJSString("RTLD_DEFAULT"), CYCastJSValue(context, reinterpret_cast<intptr_t>(RTLD_DEFAULT)), kJSPropertyAttributeDontEnum);
2543     CYSetProperty(context, cache, CYJSString("dlsym"), CYMakeFunctor(context, "dlsym", "^v^v*"), kJSPropertyAttributeDontEnum);
2544
2545     CYSetProperty(context, cache, CYJSString("NULL"), CYJSNull(context), kJSPropertyAttributeDontEnum);
2546
2547     CYSetProperty(context, cache, CYJSString("bool"), CYMakeType(context, sig::Primitive<bool>()), kJSPropertyAttributeDontEnum);
2548     CYSetProperty(context, cache, CYJSString("char"), CYMakeType(context, sig::Primitive<char>()), kJSPropertyAttributeDontEnum);
2549     CYSetProperty(context, cache, CYJSString("schar"), CYMakeType(context, sig::Primitive<signed char>()), kJSPropertyAttributeDontEnum);
2550     CYSetProperty(context, cache, CYJSString("uchar"), CYMakeType(context, sig::Primitive<unsigned char>()), kJSPropertyAttributeDontEnum);
2551
2552     CYSetProperty(context, cache, CYJSString("short"), CYMakeType(context, sig::Primitive<short>()), kJSPropertyAttributeDontEnum);
2553     CYSetProperty(context, cache, CYJSString("int"), CYMakeType(context, sig::Primitive<int>()), kJSPropertyAttributeDontEnum);
2554     CYSetProperty(context, cache, CYJSString("long"), CYMakeType(context, sig::Primitive<long>()), kJSPropertyAttributeDontEnum);
2555     CYSetProperty(context, cache, CYJSString("longlong"), CYMakeType(context, sig::Primitive<long long>()), kJSPropertyAttributeDontEnum);
2556
2557     CYSetProperty(context, cache, CYJSString("ushort"), CYMakeType(context, sig::Primitive<unsigned short>()), kJSPropertyAttributeDontEnum);
2558     CYSetProperty(context, cache, CYJSString("uint"), CYMakeType(context, sig::Primitive<unsigned int>()), kJSPropertyAttributeDontEnum);
2559     CYSetProperty(context, cache, CYJSString("ulong"), CYMakeType(context, sig::Primitive<unsigned long>()), kJSPropertyAttributeDontEnum);
2560     CYSetProperty(context, cache, CYJSString("ulonglong"), CYMakeType(context, sig::Primitive<unsigned long long>()), kJSPropertyAttributeDontEnum);
2561
2562 #ifdef __SIZEOF_INT128__
2563     CYSetProperty(context, cache, CYJSString("int128"), CYMakeType(context, sig::Primitive<__int128>()), kJSPropertyAttributeDontEnum);
2564     CYSetProperty(context, cache, CYJSString("uint128"), CYMakeType(context, sig::Primitive<unsigned __int128>()), kJSPropertyAttributeDontEnum);
2565 #endif
2566
2567     CYSetProperty(context, cache, CYJSString("float"), CYMakeType(context, sig::Primitive<float>()), kJSPropertyAttributeDontEnum);
2568     CYSetProperty(context, cache, CYJSString("double"), CYMakeType(context, sig::Primitive<double>()), kJSPropertyAttributeDontEnum);
2569     CYSetProperty(context, cache, CYJSString("longdouble"), CYMakeType(context, sig::Primitive<long double>()), kJSPropertyAttributeDontEnum);
2570
2571     CYSetProperty(context, global, CYJSString("require"), &require_callAsFunction, kJSPropertyAttributeDontEnum);
2572
2573     JSObjectRef System(JSObjectMake(context, NULL, NULL));
2574     CYSetProperty(context, all, CYJSString("system"), System);
2575     System = CYCastJSObject(context, CYGetProperty(context, global, CYJSString("system")));
2576     CYSetProperty(context, cy, CYJSString("System"), System);
2577
2578     JSObjectRef process(JSObjectMake(context, NULL, NULL));
2579     CYSetProperty(context, global, CYJSString("process"), process);
2580     CYSetProperty(context, cy, CYJSString("process"), process);
2581
2582     CYSetProperty(context, System, CYJSString("args"), CYJSNull(context));
2583     CYSetProperty(context, System, CYJSString("print"), &System_print);
2584
2585     CYSetProperty(context, global, CYJSString("global"), global);
2586     CYSetProperty(context, global, CYJSString("print"), &Global_print);
2587
2588     for (CYHook *hook : GetHooks())
2589         if (hook->SetupContext != NULL)
2590             (*hook->SetupContext)(context);
2591
2592     CYArrayPush(context, alls, cycript);
2593
2594     CYRunScript(context, "/libcycript.cy");
2595 }
2596
2597 static JSGlobalContextRef context_;
2598
2599 _visible JSGlobalContextRef CYGetJSContext() {
2600     CYInitializeDynamic();
2601
2602     if (context_ == NULL) {
2603         context_ = JSGlobalContextCreate(Global_);
2604         CYSetupContext(context_);
2605     }
2606
2607     return context_;
2608 }
2609
2610 _visible void CYDestroyContext() {
2611     if (context_ == NULL)
2612         return;
2613     JSGlobalContextRelease(context_);
2614     context_ = NULL;
2615 }