Execute.cpp

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