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         size_t size(typical->GetFFI()->size);
 273         void *copy(internal->pool_->malloc<void>(size));
 274         memcpy(copy, data, 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         // XXX: alignment?
 748         base += field->size;
 749     }
 750 }
 751
 752 void Aggregate::PoolFFI(CYPool *pool, JSContextRef context, ffi_type *ffi, void *data, JSValueRef value) const {
 753     _assert(!overlap);
 754
 755     uint8_t *base(reinterpret_cast<uint8_t *>(data));
 756     JSObjectRef aggregate(JSValueIsObject(context, value) ? (JSObjectRef) value : NULL);
 757     for (size_t index(0); index != signature.count; ++index) {
 758         sig::Element *element(&signature.elements[index]);
 759         ffi_type *field(ffi->elements[index]);
 760
 761         JSValueRef rhs;
 762         if (aggregate == NULL)
 763             rhs = value;
 764         else {
 765             rhs = CYGetProperty(context, aggregate, index);
 766             if (JSValueIsUndefined(context, rhs)) {
 767                 if (element->name != NULL)
 768                     rhs = CYGetProperty(context, aggregate, CYJSString(element->name));
 769                 else
 770                     goto undefined;
 771                 if (JSValueIsUndefined(context, rhs)) undefined:
 772                     throw CYJSError(context, "unable to extract structure value");
 773             }
 774         }
 775
 776         element->type->PoolFFI(pool, context, field, base, rhs);
 777         // XXX: alignment?
 778         base += field->size;
 779     }
 780 }
 781
 782 void Function::PoolFFI(CYPool *pool, JSContextRef context, ffi_type *ffi, void *data, JSValueRef value) const {
 783     _assert(false);
 784 }
 785
 786 #define CYFromFFI_(Type_) \
 787 template <> \
 788 JSValueRef Primitive<Type_>::FromFFI(JSContextRef context, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) const { \
 789     return CYCastJSValue(context, *reinterpret_cast<Type_ *>(data)); \
 790 }
 791
 792 CYFromFFI_(bool)
 793 CYFromFFI_(char)
 794 CYFromFFI_(double)
 795 CYFromFFI_(float)
 796 CYFromFFI_(signed char)
 797 CYFromFFI_(signed int)
 798 CYFromFFI_(signed long int)
 799 CYFromFFI_(signed long long int)
 800 CYFromFFI_(signed short int)
 801 CYFromFFI_(unsigned char)
 802 CYFromFFI_(unsigned int)
 803 CYFromFFI_(unsigned long int)
 804 CYFromFFI_(unsigned long long int)
 805 CYFromFFI_(unsigned short int)
 806
 807 JSValueRef Void::FromFFI(JSContextRef context, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) const {
 808     return CYJSUndefined(context);
 809 }
 810
 811 JSValueRef Unknown::FromFFI(JSContextRef context, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) const {
 812     _assert(false);
 813 }
 814
 815 JSValueRef String::FromFFI(JSContextRef context, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) const {
 816     if (char *value = *reinterpret_cast<char **>(data))
 817         return CYMakeCString(context, value, owner);
 818     return CYJSNull(context);
 819 }
 820
 821 JSValueRef Bits::FromFFI(JSContextRef context, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) const {
 822     _assert(false);
 823 }
 824
 825 JSValueRef Pointer::FromFFI(JSContextRef context, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) const {
 826     if (void *value = *reinterpret_cast<void **>(data))
 827         return CYMakePointer(context, value, _not(size_t), type, NULL, owner);
 828     return CYJSNull(context);
 829 }
 830
 831 JSValueRef Array::FromFFI(JSContextRef context, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) const {
 832     _assert(data != NULL);
 833     return CYMakePointer(context, data, size, type, NULL, owner);
 834 }
 835
 836 JSValueRef Aggregate::FromFFI(JSContextRef context, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) const {
 837     return CYMakeStruct(context, data, *this, ffi, owner);
 838 }
 839
 840 JSValueRef Function::FromFFI(JSContextRef context, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) const {
 841     return CYMakeFunctor(context, reinterpret_cast<void (*)()>(data), signature);
 842 }
 843
 844 }
 845
 846 void CYExecuteClosure(ffi_cif *cif, void *result, void **arguments, void *arg) {
 847     Closure_privateData *internal(reinterpret_cast<Closure_privateData *>(arg));
 848
 849     JSContextRef context(internal->context_);
 850
 851     size_t count(internal->cif_.nargs);
 852     JSValueRef values[count];
 853
 854     for (size_t index(0); index != count; ++index)
 855         values[index] = internal->signature_.elements[1 + index].type->FromFFI(context, internal->cif_.arg_types[index], arguments[index]);
 856
 857     JSValueRef value(internal->adapter_(context, count, values, internal->function_));
 858     if (internal->cif_.rtype != &ffi_type_void)
 859         internal->signature_.elements[0].type->PoolFFI(NULL, context, internal->cif_.rtype, result, value);
 860 }
 861
 862 static JSValueRef FunctionAdapter_(JSContextRef context, size_t count, JSValueRef values[], JSObjectRef function) {
 863     return CYCallAsFunction(context, function, NULL, count, values);
 864 }
 865
 866 Closure_privateData *CYMakeFunctor_(JSContextRef context, JSObjectRef function, const sig::Signature &signature, JSValueRef (*adapter)(JSContextRef, size_t, JSValueRef[], JSObjectRef)) {
 867     // XXX: in case of exceptions this will leak
 868     // XXX: in point of fact, this may /need/ to leak :(
 869     Closure_privateData *internal(new Closure_privateData(context, function, adapter, signature));
 870
 871 #if defined(__APPLE__) && (defined(__arm__) || defined(__arm64__))
 872     void *executable;
 873     ffi_closure *writable(reinterpret_cast<ffi_closure *>(ffi_closure_alloc(sizeof(ffi_closure), &executable)));
 874
 875     ffi_status status(ffi_prep_closure_loc(writable, &internal->cif_, &CYExecuteClosure, internal, executable));
 876     _assert(status == FFI_OK);
 877
 878     internal->value_ = executable;
 879 #else
 880     ffi_closure *closure((ffi_closure *) _syscall(mmap(
 881         NULL, sizeof(ffi_closure),
 882         PROT_READ | PROT_WRITE, MAP_ANON | MAP_PRIVATE,
 883         -1, 0
 884     )));
 885
 886     ffi_status status(ffi_prep_closure(closure, &internal->cif_, &CYExecuteClosure, internal));
 887     _assert(status == FFI_OK);
 888
 889     _syscall(mprotect(closure, sizeof(*closure), PROT_READ | PROT_EXEC));
 890
 891     internal->value_ = closure;
 892 #endif
 893
 894     return internal;
 895 }
 896
 897 static JSObjectRef CYMakeFunctor(JSContextRef context, JSObjectRef function, const sig::Signature &signature) {
 898     Closure_privateData *internal(CYMakeFunctor_(context, function, signature, &FunctionAdapter_));
 899     JSObjectRef object(JSObjectMake(context, Functor_, internal));
 900     // XXX: see above notes about needing to leak
 901     JSValueProtect(CYGetJSContext(context), object);
 902     return object;
 903 }
 904
 905 JSValueRef CYGetCachedValue(JSContextRef context, JSStringRef name) {
 906     return CYGetProperty(context, CYCastJSObject(context, CYGetProperty(context, CYGetGlobalObject(context), cy_s)), name);
 907 }
 908
 909 JSObjectRef CYGetCachedObject(JSContextRef context, JSStringRef name) {
 910     return CYCastJSObject(context, CYGetCachedValue(context, name));
 911 }
 912
 913 static JSObjectRef CYMakeFunctor(JSContextRef context, JSValueRef value, const sig::Signature &signature) {
 914     JSObjectRef Function(CYGetCachedObject(context, CYJSString("Function")));
 915
 916     bool function(_jsccall(JSValueIsInstanceOfConstructor, context, value, Function));
 917     if (function) {
 918         JSObjectRef function(CYCastJSObject(context, value));
 919         return CYMakeFunctor(context, function, signature);
 920     } else {
 921         void (*function)()(CYCastPointer<void (*)()>(context, value));
 922         return CYMakeFunctor(context, function, signature);
 923     }
 924 }
 925
 926 static JSValueRef CString_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
 927     CYPool pool;
 928     CString *internal(reinterpret_cast<CString *>(JSObjectGetPrivate(object)));
 929     char *string(static_cast<char *>(internal->value_));
 930
 931     ssize_t offset;
 932     if (!CYGetOffset(pool, context, property, offset))
 933         return NULL;
 934
 935     return CYCastJSValue(context, CYJSString(CYUTF8String(&string[offset], 1)));
 936 } CYCatch(NULL) }
 937
 938 static bool CString_setProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef value, JSValueRef *exception) { CYTry {
 939     CYPool pool;
 940     CString *internal(reinterpret_cast<CString *>(JSObjectGetPrivate(object)));
 941     char *string(static_cast<char *>(internal->value_));
 942
 943     ssize_t offset;
 944     if (!CYGetOffset(pool, context, property, offset))
 945         return false;
 946
 947     const char *data(CYPoolCString(pool, context, value));
 948     string[offset] = *data;
 949     return true;
 950 } CYCatch(false) }
 951
 952 static bool Index_(CYPool &pool, JSContextRef context, Struct_privateData *internal, JSStringRef property, ssize_t &index, uint8_t *&base) {
 953     Type_privateData *typical(internal->type_);
 954     sig::Aggregate *type(static_cast<sig::Aggregate *>(typical->type_));
 955     if (type == NULL)
 956         return false;
 957
 958     const char *name(CYPoolCString(pool, context, property));
 959     size_t length(strlen(name));
 960     double number(CYCastDouble(name, length));
 961
 962     size_t count(type->signature.count);
 963
 964     if (std::isnan(number)) {
 965         if (property == NULL)
 966             return false;
 967
 968         sig::Element *elements(type->signature.elements);
 969
 970         for (size_t local(0); local != count; ++local) {
 971             sig::Element *element(&elements[local]);
 972             if (element->name != NULL && strcmp(name, element->name) == 0) {
 973                 index = local;
 974                 goto base;
 975             }
 976         }
 977
 978         return false;
 979     } else {
 980         index = static_cast<ssize_t>(number);
 981         if (index != number || index < 0 || static_cast<size_t>(index) >= count)
 982             return false;
 983     }
 984
 985   base:
 986     ffi_type **elements(typical->GetFFI()->elements);
 987
 988     size_t offset(0);
 989     for (ssize_t local(0); local != index; ++local) {
 990         offset += elements[local]->size;
 991         CYAlign(offset, elements[local + 1]->alignment);
 992     }
 993
 994     base = reinterpret_cast<uint8_t *>(internal->value_) + offset;
 995     return true;
 996 }
 997
 998 static JSValueRef Pointer_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
 999     CYPool pool;
1000     Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(object)));
1001
1002     if (JSStringIsEqual(property, length_s))
1003         return internal->length_ == _not(size_t) ? CYJSUndefined(context) : CYCastJSValue(context, internal->length_);
1004
1005     Type_privateData *typical(internal->type_);
1006     if (typical->type_ == NULL)
1007         return NULL;
1008
1009     if (sig::Function *function = dynamic_cast<sig::Function *>(typical->type_)) {
1010         if (!JSStringIsEqualToUTF8CString(property, "$cyi"))
1011             return NULL;
1012         return CYMakeFunctor(context, reinterpret_cast<void (*)()>(internal->value_), function->signature);
1013     }
1014
1015     ssize_t offset;
1016     if (JSStringIsEqualToUTF8CString(property, "$cyi"))
1017         offset = 0;
1018     else if (!CYGetOffset(pool, context, property, offset))
1019         return NULL;
1020
1021     ffi_type *ffi(typical->GetFFI());
1022
1023     uint8_t *base(reinterpret_cast<uint8_t *>(internal->value_));
1024     base += ffi->size * offset;
1025
1026     JSObjectRef owner(internal->GetOwner() ?: object);
1027     return typical->type_->FromFFI(context, ffi, base, false, owner);
1028 } CYCatch(NULL) }
1029
1030 static bool Pointer_setProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef value, JSValueRef *exception) { CYTry {
1031     CYPool pool;
1032     Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(object)));
1033     Type_privateData *typical(internal->type_);
1034
1035     if (typical->type_ == NULL)
1036         return false;
1037
1038     ssize_t offset;
1039     if (JSStringIsEqualToUTF8CString(property, "$cyi"))
1040         offset = 0;
1041     else if (!CYGetOffset(pool, context, property, offset))
1042         return false;
1043
1044     ffi_type *ffi(typical->GetFFI());
1045
1046     uint8_t *base(reinterpret_cast<uint8_t *>(internal->value_));
1047     base += ffi->size * offset;
1048
1049     typical->type_->PoolFFI(NULL, context, ffi, base, value);
1050     return true;
1051 } CYCatch(false) }
1052
1053 static JSValueRef Struct_callAsFunction_$cya(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1054     Struct_privateData *internal(reinterpret_cast<Struct_privateData *>(JSObjectGetPrivate(_this)));
1055     Type_privateData *typical(internal->type_);
1056     return CYMakePointer(context, internal->value_, _not(size_t), *typical->type_, typical->ffi_, _this);
1057 } CYCatch(NULL) }
1058
1059 static JSValueRef Struct_getProperty_type(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1060     Struct_privateData *internal(reinterpret_cast<Struct_privateData *>(JSObjectGetPrivate(object)));
1061     return CYMakeType(context, *internal->type_->type_);
1062 } CYCatch(NULL) }
1063
1064 static JSValueRef Struct_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1065     CYPool pool;
1066     Struct_privateData *internal(reinterpret_cast<Struct_privateData *>(JSObjectGetPrivate(object)));
1067     Type_privateData *typical(internal->type_);
1068     sig::Aggregate *type(static_cast<sig::Aggregate *>(typical->type_));
1069
1070     ssize_t index;
1071     uint8_t *base;
1072
1073     if (!Index_(pool, context, internal, property, index, base))
1074         return NULL;
1075
1076     JSObjectRef owner(internal->GetOwner() ?: object);
1077
1078     return type->signature.elements[index].type->FromFFI(context, typical->GetFFI()->elements[index], base, false, owner);
1079 } CYCatch(NULL) }
1080
1081 static bool Struct_setProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef value, JSValueRef *exception) { CYTry {
1082     CYPool pool;
1083     Struct_privateData *internal(reinterpret_cast<Struct_privateData *>(JSObjectGetPrivate(object)));
1084     Type_privateData *typical(internal->type_);
1085     sig::Aggregate *type(static_cast<sig::Aggregate *>(typical->type_));
1086
1087     ssize_t index;
1088     uint8_t *base;
1089
1090     if (!Index_(pool, context, internal, property, index, base))
1091         return false;
1092
1093     type->signature.elements[index].type->PoolFFI(NULL, context, typical->GetFFI()->elements[index], base, value);
1094     return true;
1095 } CYCatch(false) }
1096
1097 static void Struct_getPropertyNames(JSContextRef context, JSObjectRef object, JSPropertyNameAccumulatorRef names) {
1098     Struct_privateData *internal(reinterpret_cast<Struct_privateData *>(JSObjectGetPrivate(object)));
1099     Type_privateData *typical(internal->type_);
1100     sig::Aggregate *type(static_cast<sig::Aggregate *>(typical->type_));
1101
1102     if (type == NULL)
1103         return;
1104
1105     size_t count(type->signature.count);
1106     sig::Element *elements(type->signature.elements);
1107
1108     char number[32];
1109
1110     for (size_t index(0); index != count; ++index) {
1111         const char *name;
1112         name = elements[index].name;
1113
1114         if (name == NULL) {
1115             sprintf(number, "%zu", index);
1116             name = number;
1117         }
1118
1119         JSPropertyNameAccumulatorAddName(names, CYJSString(name));
1120     }
1121 }
1122
1123 void CYCallFunction(CYPool &pool, JSContextRef context, ffi_cif *cif, void (*function)(), void *value, void **values) {
1124     ffi_call(cif, function, value, values);
1125 }
1126
1127 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)()) {
1128     if (setups + count != signature->count - 1)
1129         throw CYJSError(context, "incorrect number of arguments to ffi function");
1130
1131     size_t size(setups + count);
1132     void *values[size];
1133     memcpy(values, setup, sizeof(void *) * setups);
1134
1135     for (size_t index(setups); index != size; ++index) {
1136         sig::Element *element(&signature->elements[index + 1]);
1137         ffi_type *ffi(cif->arg_types[index]);
1138         // XXX: alignment?
1139         values[index] = new(pool) uint8_t[ffi->size];
1140         element->type->PoolFFI(&pool, context, ffi, values[index], arguments[index - setups]);
1141     }
1142
1143     uint8_t value[cif->rtype->size];
1144
1145     void (*call)(CYPool &, JSContextRef, ffi_cif *, void (*)(), void *, void **) = &CYCallFunction;
1146     // XXX: this only supports one hook, but it is a bad idea anyway
1147     for (CYHook *hook : GetHooks())
1148         if (hook->CallFunction != NULL)
1149             call = hook->CallFunction;
1150
1151     call(pool, context, cif, function, value, values);
1152     return signature->elements[0].type->FromFFI(context, cif->rtype, value, initialize);
1153 }
1154
1155 static JSValueRef Functor_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1156     CYPool pool;
1157     cy::Functor *internal(reinterpret_cast<cy::Functor *>(JSObjectGetPrivate(object)));
1158     return CYCallFunction(pool, context, 0, NULL, count, arguments, false, &internal->signature_, &internal->cif_, internal->GetValue());
1159 } CYCatch(NULL) }
1160
1161 static JSValueRef Pointer_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1162     Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(object)));
1163     if (dynamic_cast<sig::Function *>(internal->type_->type_) == NULL)
1164         throw CYJSError(context, "cannot call a pointer to non-function");
1165     JSObjectRef functor(CYCastJSObject(context, CYGetProperty(context, object, cyi_s)));
1166     return CYCallAsFunction(context, functor, _this, count, arguments);
1167 } CYCatch(NULL) }
1168
1169 JSObjectRef CYMakeType(JSContextRef context, const sig::Type &type) {
1170     Type_privateData *internal(new Type_privateData(type));
1171     return JSObjectMake(context, Type_privateData::Class_, internal);
1172 }
1173
1174 JSObjectRef CYMakeType(JSContextRef context, sig::Signature *signature) {
1175     CYPool pool;
1176     sig::Function type;
1177     sig::Copy(pool, type.signature, *signature);
1178     return CYMakeType(context, type);
1179 }
1180
1181 extern "C" bool CYBridgeHash(CYPool &pool, CYUTF8String name, const char *&code, unsigned &flags) {
1182     sqlite3_stmt *statement;
1183
1184     _sqlcall(sqlite3_prepare(database_,
1185         "select "
1186             "\"cache\".\"code\", "
1187             "\"cache\".\"flags\" "
1188         "from \"cache\" "
1189         "where"
1190             " \"cache\".\"system\" & " CY_SYSTEM " == " CY_SYSTEM " and"
1191             " \"cache\".\"name\" = ?"
1192         " limit 1"
1193     , -1, &statement, NULL));
1194
1195     _sqlcall(sqlite3_bind_text(statement, 1, name.data, name.size, SQLITE_STATIC));
1196
1197     bool success;
1198     if (_sqlcall(sqlite3_step(statement)) == SQLITE_DONE)
1199         success = false;
1200     else {
1201         success = true;
1202         code = sqlite3_column_pooled(pool, statement, 0);
1203         flags = sqlite3_column_int(statement, 1);
1204     }
1205
1206     _sqlcall(sqlite3_finalize(statement));
1207     return success;
1208 }
1209
1210 static bool All_hasProperty(JSContextRef context, JSObjectRef object, JSStringRef property) {
1211     if (JSStringIsEqualToUTF8CString(property, "errno"))
1212         return true;
1213
1214     JSObjectRef global(CYGetGlobalObject(context));
1215     JSObjectRef cycript(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Cycript"))));
1216     JSObjectRef alls(CYCastJSObject(context, CYGetProperty(context, cycript, CYJSString("alls"))));
1217
1218     for (size_t i(0), count(CYArrayLength(context, alls)); i != count; ++i)
1219         if (JSObjectRef space = CYCastJSObject(context, CYArrayGet(context, alls, count - i - 1)))
1220             if (CYHasProperty(context, space, property))
1221                 return true;
1222
1223     CYPool pool;
1224     const char *code;
1225     unsigned flags;
1226     if (CYBridgeHash(pool, CYPoolUTF8String(pool, context, property), code, flags))
1227         return true;
1228
1229     return false;
1230 }
1231
1232 static JSValueRef All_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1233     if (JSStringIsEqualToUTF8CString(property, "errno"))
1234         return CYCastJSValue(context, errno);
1235
1236     JSObjectRef global(CYGetGlobalObject(context));
1237     JSObjectRef cycript(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Cycript"))));
1238     JSObjectRef alls(CYCastJSObject(context, CYGetProperty(context, cycript, CYJSString("alls"))));
1239
1240     for (size_t i(0), count(CYArrayLength(context, alls)); i != count; ++i)
1241         if (JSObjectRef space = CYCastJSObject(context, CYArrayGet(context, alls, count - i - 1)))
1242             if (JSValueRef value = CYGetProperty(context, space, property))
1243                 if (!JSValueIsUndefined(context, value))
1244                     return value;
1245
1246     CYPool pool;
1247     const char *code;
1248     unsigned flags;
1249     if (CYBridgeHash(pool, CYPoolUTF8String(pool, context, property), code, flags)) {
1250         CYUTF8String parsed;
1251
1252         try {
1253             parsed = CYPoolCode(pool, code);
1254         } catch (const CYException &error) {
1255             CYThrow("%s", pool.strcat("error caching ", CYPoolCString(pool, context, property), ": ", error.PoolCString(pool), NULL));
1256         }
1257
1258         JSValueRef result(_jsccall(JSEvaluateScript, context, CYJSString(parsed), NULL, NULL, 0));
1259
1260         if (flags == 0) {
1261             JSObjectRef cache(CYGetCachedObject(context, CYJSString("cache")));
1262             CYSetProperty(context, cache, property, result);
1263         }
1264
1265         return result;
1266     }
1267
1268     return NULL;
1269 } CYCatch(NULL) }
1270
1271 static JSValueRef All_complete_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1272     _assert(count == 1);
1273     CYPool pool;
1274     CYUTF8String prefix(CYPoolUTF8String(pool, context, CYJSString(context, arguments[0])));
1275
1276     JSObjectRef array(NULL);
1277
1278     {
1279     CYArrayBuilder<1024> values(context, array);
1280
1281     sqlite3_stmt *statement;
1282
1283     if (prefix.size == 0)
1284         _sqlcall(sqlite3_prepare(database_,
1285             "select "
1286                 "\"cache\".\"name\" "
1287             "from \"cache\" "
1288             "where"
1289                 " \"cache\".\"system\" & " CY_SYSTEM " == " CY_SYSTEM
1290         , -1, &statement, NULL));
1291     else {
1292         _sqlcall(sqlite3_prepare(database_,
1293             "select "
1294                 "\"cache\".\"name\" "
1295             "from \"cache\" "
1296             "where"
1297                 " \"cache\".\"name\" >= ? and \"cache\".\"name\" < ? and "
1298                 " \"cache\".\"system\" & " CY_SYSTEM " == " CY_SYSTEM
1299         , -1, &statement, NULL));
1300
1301         _sqlcall(sqlite3_bind_text(statement, 1, prefix.data, prefix.size, SQLITE_STATIC));
1302
1303         char *after(pool.strndup(prefix.data, prefix.size));
1304         ++after[prefix.size - 1];
1305         _sqlcall(sqlite3_bind_text(statement, 2, after, prefix.size, SQLITE_STATIC));
1306     }
1307
1308     while (_sqlcall(sqlite3_step(statement)) != SQLITE_DONE)
1309         values(CYCastJSValue(context, CYJSString(sqlite3_column_string(statement, 0))));
1310
1311     _sqlcall(sqlite3_finalize(statement));
1312     }
1313
1314     return array;
1315 } CYCatch(NULL) }
1316
1317 static void All_getPropertyNames(JSContextRef context, JSObjectRef object, JSPropertyNameAccumulatorRef names) {
1318     JSObjectRef global(CYGetGlobalObject(context));
1319     JSObjectRef cycript(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Cycript"))));
1320     JSObjectRef alls(CYCastJSObject(context, CYGetProperty(context, cycript, CYJSString("alls"))));
1321
1322     for (size_t i(0), count(CYArrayLength(context, alls)); i != count; ++i)
1323         if (JSObjectRef space = CYCastJSObject(context, CYArrayGet(context, alls, count - i - 1))) {
1324             JSPropertyNameArrayRef subset(JSObjectCopyPropertyNames(context, space));
1325             for (size_t index(0), count(JSPropertyNameArrayGetCount(subset)); index != count; ++index)
1326                 JSPropertyNameAccumulatorAddName(names, JSPropertyNameArrayGetNameAtIndex(subset, index));
1327             JSPropertyNameArrayRelease(subset);
1328         }
1329 }
1330
1331 static JSObjectRef CString_new(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1332     if (count != 1)
1333         throw CYJSError(context, "incorrect number of arguments to CString constructor");
1334     char *value(CYCastPointer<char *>(context, arguments[0]));
1335     return CYMakeCString(context, value, NULL);
1336 } CYCatch(NULL) }
1337
1338 static JSObjectRef Pointer_new(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1339     if (count != 2)
1340         throw CYJSError(context, "incorrect number of arguments to Pointer constructor");
1341
1342     CYPool pool;
1343
1344     void *value(CYCastPointer<void *>(context, arguments[0]));
1345     const char *type(CYPoolCString(pool, context, arguments[1]));
1346
1347     sig::Signature signature;
1348     sig::Parse(pool, &signature, type, &Structor_);
1349
1350     return CYMakePointer(context, value, _not(size_t), *signature.elements[0].type, NULL, NULL);
1351 } CYCatch(NULL) }
1352
1353 static JSObjectRef Type_new(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1354     CYPool pool;
1355
1356     if (false) {
1357     } else if (count == 1) {
1358         const char *encoding(CYPoolCString(pool, context, arguments[0]));
1359         sig::Signature signature;
1360         sig::Parse(pool, &signature, encoding, &Structor_);
1361         return CYMakeType(context, *signature.elements[0].type);
1362     } else if (count == 2) {
1363         JSObjectRef types(CYCastJSObject(context, arguments[0]));
1364         size_t count(CYArrayLength(context, types));
1365
1366         JSObjectRef names(CYCastJSObject(context, arguments[1]));
1367
1368         sig::Aggregate type(false);
1369         type.signature.elements = new(pool) sig::Element[count];
1370         type.signature.count = count;
1371
1372         for (size_t i(0); i != count; ++i) {
1373             sig::Element &element(type.signature.elements[i]);
1374             element.offset = _not(size_t);
1375
1376             JSValueRef name(CYArrayGet(context, names, i));
1377             if (JSValueIsUndefined(context, name))
1378                 element.name = NULL;
1379             else
1380                 element.name = CYPoolCString(pool, context, name);
1381
1382             JSObjectRef object(CYCastJSObject(context, CYArrayGet(context, types, i)));
1383             _assert(JSValueIsObjectOfClass(context, object, Type_privateData::Class_));
1384             Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
1385             element.type = internal->type_;
1386         }
1387
1388         return CYMakeType(context, type);
1389     } else {
1390         throw CYJSError(context, "incorrect number of arguments to Type constructor");
1391     }
1392 } CYCatch(NULL) }
1393
1394 static JSValueRef Type_callAsFunction_$With(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], sig::Callable &type, JSValueRef *exception) { CYTry {
1395     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1396
1397     CYPool pool;
1398
1399     type.signature.elements = new(pool) sig::Element[1 + count];
1400     type.signature.count = 1 + count;
1401
1402     type.signature.elements[0].name = NULL;
1403     type.signature.elements[0].type = internal->type_;
1404     type.signature.elements[0].offset = _not(size_t);
1405
1406     for (size_t i(0); i != count; ++i) {
1407         sig::Element &element(type.signature.elements[i + 1]);
1408         element.name = NULL;
1409         element.offset = _not(size_t);
1410
1411         JSObjectRef object(CYCastJSObject(context, arguments[i]));
1412         _assert(JSValueIsObjectOfClass(context, object, Type_privateData::Class_));
1413         Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
1414
1415         element.type = internal->type_;
1416     }
1417
1418     return CYMakeType(context, type);
1419 } CYCatch(NULL) }
1420
1421 static JSValueRef Type_callAsFunction_arrayOf(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1422     if (count != 1)
1423         throw CYJSError(context, "incorrect number of arguments to Type.arrayOf");
1424     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1425
1426     CYPool pool;
1427     size_t index(CYGetIndex(pool, context, CYJSString(context, arguments[0])));
1428     if (index == _not(size_t))
1429         throw CYJSError(context, "invalid array size used with Type.arrayOf");
1430
1431     sig::Array type(*internal->type_, index);
1432     return CYMakeType(context, type);
1433 } CYCatch(NULL) }
1434
1435 static JSValueRef Type_callAsFunction_blockWith(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
1436     sig::Block type;
1437     return Type_callAsFunction_$With(context, object, _this, count, arguments, type, exception);
1438 }
1439
1440 static JSValueRef Type_callAsFunction_constant(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1441     if (count != 0)
1442         throw CYJSError(context, "incorrect number of arguments to Type.constant");
1443     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1444
1445     CYPool pool;
1446     sig::Type *type(internal->type_->Copy(pool));
1447     type->flags |= JOC_TYPE_CONST;
1448     return CYMakeType(context, *type);
1449 } CYCatch(NULL) }
1450
1451 static JSValueRef Type_callAsFunction_functionWith(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
1452     sig::Function type;
1453     return Type_callAsFunction_$With(context, object, _this, count, arguments, type, exception);
1454 }
1455
1456 static JSValueRef Type_callAsFunction_pointerTo(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1457     if (count != 0)
1458         throw CYJSError(context, "incorrect number of arguments to Type.pointerTo");
1459     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1460
1461     if (dynamic_cast<sig::Primitive<char> *>(internal->type_) != NULL)
1462         return CYMakeType(context, sig::String());
1463     else
1464         return CYMakeType(context, sig::Pointer(*internal->type_));
1465 } CYCatch(NULL) }
1466
1467 static JSValueRef Type_callAsFunction_withName(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1468     if (count != 1)
1469         throw CYJSError(context, "incorrect number of arguments to Type.withName");
1470     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1471
1472     CYPool pool;
1473     return CYMakeType(context, *internal->type_->Copy(pool, CYPoolCString(pool, context, arguments[0])));
1474 } CYCatch(NULL) }
1475
1476 static JSValueRef Type_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1477     if (count != 1)
1478         throw CYJSError(context, "incorrect number of arguments to type cast function");
1479     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
1480
1481     if (sig::Function *function = dynamic_cast<sig::Function *>(internal->type_))
1482         return CYMakeFunctor(context, arguments[0], function->signature);
1483
1484     sig::Type *type(internal->type_);
1485     ffi_type *ffi(internal->GetFFI());
1486     // XXX: alignment?
1487     uint8_t value[ffi->size];
1488     CYPool pool;
1489     type->PoolFFI(&pool, context, ffi, value, arguments[0]);
1490     return type->FromFFI(context, ffi, value);
1491 } CYCatch(NULL) }
1492
1493 static JSObjectRef Type_callAsConstructor(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1494     if (count != 0)
1495         throw CYJSError(context, "incorrect number of arguments to Type allocator");
1496     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
1497
1498     sig::Type *type(internal->type_);
1499     size_t length(type->Translate(type));
1500
1501     JSObjectRef pointer(CYMakePointer(context, NULL, length, *type, NULL, NULL));
1502     Pointer *value(reinterpret_cast<Pointer *>(JSObjectGetPrivate(pointer)));
1503     value->value_ = value->pool_->malloc<void>(internal->GetFFI()->size);
1504     memset(value->value_, 0, internal->GetFFI()->size);
1505     return pointer;
1506 } CYCatch(NULL) }
1507
1508 static JSObjectRef Functor_new(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1509     if (count != 2)
1510         throw CYJSError(context, "incorrect number of arguments to Functor constructor");
1511     CYPool pool;
1512     const char *encoding(CYPoolCString(pool, context, arguments[1]));
1513     sig::Signature signature;
1514     sig::Parse(pool, &signature, encoding, &Structor_);
1515     return CYMakeFunctor(context, arguments[0], signature);
1516 } CYCatch(NULL) }
1517
1518 static JSValueRef CString_callAsFunction_toPointer(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1519     CString *internal(reinterpret_cast<CString *>(JSObjectGetPrivate(_this)));
1520     return CYMakePointer(context, internal->value_, _not(size_t), sig::Primitive<char>(), NULL, NULL);
1521 } CYCatch(NULL) }
1522
1523 static JSValueRef Functor_callAsFunction_$cya(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1524     CYPool pool;
1525     cy::Functor *internal(reinterpret_cast<cy::Functor *>(JSObjectGetPrivate(_this)));
1526
1527     sig::Function type;
1528     sig::Copy(pool, type.signature, internal->signature_);
1529
1530     return CYMakePointer(context, internal->value_, _not(size_t), type, NULL, NULL);
1531 } CYCatch(NULL) }
1532
1533 static JSValueRef Pointer_callAsFunction_toPointer(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1534     return _this;
1535 } CYCatch(NULL) }
1536
1537 static JSValueRef CYValue_callAsFunction_valueOf(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1538     CYValue *internal(reinterpret_cast<CYValue *>(JSObjectGetPrivate(_this)));
1539     return CYCastJSValue(context, reinterpret_cast<uintptr_t>(internal->value_));
1540 } CYCatch(NULL) }
1541
1542 static JSValueRef CYValue_callAsFunction_toJSON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
1543     return CYValue_callAsFunction_valueOf(context, object, _this, count, arguments, exception);
1544 }
1545
1546 static JSValueRef CYValue_callAsFunction_toCYON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1547     CYValue *internal(reinterpret_cast<CYValue *>(JSObjectGetPrivate(_this)));
1548     std::ostringstream str;
1549     Dl_info info;
1550     if (internal->value_ == NULL)
1551         str << "NULL";
1552     else if (dladdr(internal->value_, &info) == 0)
1553         str << internal->value_;
1554     else {
1555         str << info.dli_sname;
1556         off_t offset(static_cast<char *>(internal->value_) - static_cast<char *>(info.dli_saddr));
1557         if (offset != 0)
1558             str << "+0x" << std::hex << offset;
1559     }
1560     std::string value(str.str());
1561     return CYCastJSValue(context, CYJSString(CYUTF8String(value.c_str(), value.size())));
1562 } CYCatch(NULL) }
1563
1564 static JSValueRef Pointer_callAsFunction_toCYON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1565     std::set<void *> *objects(CYCastObjects(context, _this, count, arguments));
1566
1567     Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(_this)));
1568     if (internal->length_ != _not(size_t)) {
1569         JSObjectRef Array(CYGetCachedObject(context, CYJSString("Array_prototype")));
1570         JSObjectRef toCYON(CYCastJSObject(context, CYGetProperty(context, Array, toCYON_s)));
1571         return CYCallAsFunction(context, toCYON, _this, count, arguments);
1572     }
1573
1574     try {
1575         JSValueRef value(CYGetProperty(context, _this, cyi_s));
1576         if (!JSValueIsUndefined(context, value)) {
1577             CYPool pool;
1578             return CYCastJSValue(context, pool.strcat("&", CYPoolCCYON(pool, context, value, objects), NULL));
1579         }
1580     } catch (const CYException &e) {
1581         // XXX: it might be interesting to include this error
1582     }
1583
1584     CYLocalPool pool;
1585     std::ostringstream str;
1586
1587     sig::Pointer type(*internal->type_->type_);
1588
1589     CYOptions options;
1590     CYOutput output(*str.rdbuf(), options);
1591     (new(pool) CYTypeExpression(CYDecodeType(pool, &type)))->Output(output, CYNoFlags);
1592
1593     str << "(" << internal->value_ << ")";
1594     std::string value(str.str());
1595     return CYCastJSValue(context, CYJSString(CYUTF8String(value.c_str(), value.size())));
1596 } CYCatch(NULL) }
1597
1598 static JSValueRef CString_getProperty_length(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1599     CString *internal(reinterpret_cast<CString *>(JSObjectGetPrivate(object)));
1600     char *string(static_cast<char *>(internal->value_));
1601     return CYCastJSValue(context, strlen(string));
1602 } CYCatch(NULL) }
1603
1604 static JSValueRef CString_getProperty_type(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1605     return CYMakeType(context, sig::String());
1606 } CYCatch(NULL) }
1607
1608 static JSValueRef Pointer_getProperty_type(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1609     Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(object)));
1610     sig::Pointer type(*internal->type_->type_);
1611     return CYMakeType(context, type);
1612 } CYCatch(NULL) }
1613
1614 static JSValueRef CString_callAsFunction_toCYON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1615     Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(_this)));
1616     const char *string(static_cast<const char *>(internal->value_));
1617     std::ostringstream str;
1618     if (string == NULL)
1619         str << "NULL";
1620     else {
1621         str << "&";
1622         CYStringify(str, string, strlen(string), true);
1623     }
1624     std::string value(str.str());
1625     return CYCastJSValue(context, CYJSString(CYUTF8String(value.c_str(), value.size())));
1626 } CYCatch(NULL) }
1627
1628 static JSValueRef CString_callAsFunction_toString(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1629     Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(_this)));
1630     const char *string(static_cast<const char *>(internal->value_));
1631     return CYCastJSValue(context, string);
1632 } CYCatch(NULL) }
1633
1634 static JSValueRef Functor_getProperty_type(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1635     cy::Functor *internal(reinterpret_cast<cy::Functor *>(JSObjectGetPrivate(object)));
1636     return CYMakeType(context, &internal->signature_);
1637 } CYCatch(NULL) }
1638
1639 static JSValueRef Type_getProperty_alignment(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1640     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
1641     return CYCastJSValue(context, internal->GetFFI()->alignment);
1642 } CYCatch(NULL) }
1643
1644 static JSValueRef Type_getProperty_name(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1645     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
1646     return CYCastJSValue(context, internal->type_->GetName());
1647 } CYCatch(NULL) }
1648
1649 static JSValueRef Type_getProperty_size(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1650     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
1651     return CYCastJSValue(context, internal->GetFFI()->size);
1652 } CYCatch(NULL) }
1653
1654 static JSValueRef Type_callAsFunction_toString(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1655     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1656     CYPool pool;
1657     const char *type(sig::Unparse(pool, internal->type_));
1658     return CYCastJSValue(context, CYJSString(type));
1659 } CYCatch(NULL) }
1660
1661 static JSValueRef Type_callAsFunction_toCYON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1662     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1663     CYLocalPool pool;
1664     std::stringbuf out;
1665     CYOptions options;
1666     CYOutput output(out, options);
1667     (new(pool) CYTypeExpression(CYDecodeType(pool, internal->type_)))->Output(output, CYNoFlags);
1668     return CYCastJSValue(context, CYJSString(out.str().c_str()));
1669 } CYCatch(NULL) }
1670
1671 static JSValueRef Type_callAsFunction_toJSON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
1672     return Type_callAsFunction_toString(context, object, _this, count, arguments, exception);
1673 }
1674
1675 static JSStaticFunction All_staticFunctions[2] = {
1676     {"cy$complete", &All_complete_callAsFunction, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1677     {NULL, NULL, 0}
1678 };
1679
1680 static JSStaticFunction CString_staticFunctions[6] = {
1681     {"toCYON", &CString_callAsFunction_toCYON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1682     {"toJSON", &CYValue_callAsFunction_toJSON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1683     {"toPointer", &CString_callAsFunction_toPointer, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1684     {"toString", &CString_callAsFunction_toString, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1685     {"valueOf", &CString_callAsFunction_toString, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1686     {NULL, NULL, 0}
1687 };
1688
1689 static JSStaticValue CString_staticValues[3] = {
1690     {"length", &CString_getProperty_length, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1691     {"type", &CString_getProperty_type, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1692     {NULL, NULL, NULL, 0}
1693 };
1694
1695 static JSStaticFunction Pointer_staticFunctions[5] = {
1696     {"toCYON", &Pointer_callAsFunction_toCYON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1697     {"toJSON", &CYValue_callAsFunction_toJSON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1698     {"toPointer", &Pointer_callAsFunction_toPointer, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1699     {"valueOf", &CYValue_callAsFunction_valueOf, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1700     {NULL, NULL, 0}
1701 };
1702
1703 static JSStaticValue Pointer_staticValues[2] = {
1704     {"type", &Pointer_getProperty_type, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1705     {NULL, NULL, NULL, 0}
1706 };
1707
1708 static JSStaticFunction Struct_staticFunctions[2] = {
1709     {"$cya", &Struct_callAsFunction_$cya, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1710     {NULL, NULL, 0}
1711 };
1712
1713 static JSStaticValue Struct_staticValues[2] = {
1714     {"type", &Struct_getProperty_type, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1715     {NULL, NULL, NULL, 0}
1716 };
1717
1718 static JSStaticFunction Functor_staticFunctions[5] = {
1719     {"$cya", &Functor_callAsFunction_$cya, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1720     {"toCYON", &CYValue_callAsFunction_toCYON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1721     {"toJSON", &CYValue_callAsFunction_toJSON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1722     {"valueOf", &CYValue_callAsFunction_valueOf, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1723     {NULL, NULL, 0}
1724 };
1725
1726 namespace cy {
1727     JSStaticFunction const * const Functor::StaticFunctions = Functor_staticFunctions;
1728 }
1729
1730 static JSStaticValue Functor_staticValues[2] = {
1731     {"type", &Functor_getProperty_type, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1732     {NULL, NULL, NULL, 0}
1733 };
1734
1735 namespace cy {
1736     JSStaticValue const * const Functor::StaticValues = Functor_staticValues;
1737 }
1738
1739 static JSStaticValue Type_staticValues[4] = {
1740     {"alignment", &Type_getProperty_alignment, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1741     {"name", &Type_getProperty_name, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1742     {"size", &Type_getProperty_size, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1743     {NULL, NULL, NULL, 0}
1744 };
1745
1746 static JSStaticFunction Type_staticFunctions[10] = {
1747     {"arrayOf", &Type_callAsFunction_arrayOf, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1748     {"blockWith", &Type_callAsFunction_blockWith, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1749     {"constant", &Type_callAsFunction_constant, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1750     {"functionWith", &Type_callAsFunction_functionWith, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1751     {"pointerTo", &Type_callAsFunction_pointerTo, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1752     {"withName", &Type_callAsFunction_withName, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1753     {"toCYON", &Type_callAsFunction_toCYON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1754     {"toJSON", &Type_callAsFunction_toJSON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1755     {"toString", &Type_callAsFunction_toString, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1756     {NULL, NULL, 0}
1757 };
1758
1759 _visible void CYSetArgs(int argc, const char *argv[]) {
1760     JSContextRef context(CYGetJSContext());
1761     JSValueRef args[argc];
1762     for (int i(0); i != argc; ++i)
1763         args[i] = CYCastJSValue(context, argv[i]);
1764
1765     JSObjectRef array(CYObjectMakeArray(context, argc, args));
1766     JSObjectRef System(CYGetCachedObject(context, CYJSString("System")));
1767     CYSetProperty(context, System, CYJSString("args"), array);
1768 }
1769
1770 JSObjectRef CYGetGlobalObject(JSContextRef context) {
1771     return JSContextGetGlobalObject(context);
1772 }
1773
1774 // XXX: this is neither exceptin safe nor even terribly sane
1775 class ExecutionHandle {
1776   private:
1777     JSContextRef context_;
1778     std::vector<void *> handles_;
1779
1780   public:
1781     ExecutionHandle(JSContextRef context) :
1782         context_(context)
1783     {
1784         handles_.resize(GetHooks().size());
1785         for (size_t i(0); i != GetHooks().size(); ++i) {
1786             CYHook *hook(GetHooks()[i]);
1787             if (hook->ExecuteStart != NULL)
1788                 handles_[i] = (*hook->ExecuteStart)(context_);
1789             else
1790                 handles_[i] = NULL;
1791         }
1792     }
1793
1794     ~ExecutionHandle() {
1795         for (size_t i(GetHooks().size()); i != 0; --i) {
1796             CYHook *hook(GetHooks()[i-1]);
1797             if (hook->ExecuteEnd != NULL)
1798                 (*hook->ExecuteEnd)(context_, handles_[i-1]);
1799         }
1800     }
1801 };
1802
1803 static volatile bool cancel_;
1804
1805 static bool CYShouldTerminate(JSContextRef context, void *arg) {
1806     return cancel_;
1807 }
1808
1809 _visible const char *CYExecute(JSContextRef context, CYPool &pool, CYUTF8String code) {
1810     ExecutionHandle handle(context);
1811
1812     cancel_ = false;
1813     if (&JSContextGroupSetExecutionTimeLimit != NULL)
1814         JSContextGroupSetExecutionTimeLimit(JSContextGetGroup(context), 0.5, &CYShouldTerminate, NULL);
1815
1816     try {
1817         JSValueRef result(_jsccall(JSEvaluateScript, context, CYJSString(code), NULL, NULL, 0));
1818         if (JSValueIsUndefined(context, result))
1819             return NULL;
1820
1821         std::set<void *> objects;
1822         const char *json(_jsccall(CYPoolCCYON, pool, context, result, objects));
1823         CYSetProperty(context, CYGetGlobalObject(context), Result_, result);
1824
1825         return json;
1826     } catch (const CYException &error) {
1827         return pool.strcat("throw ", error.PoolCString(pool), NULL);
1828     }
1829 }
1830
1831 _visible void CYCancel() {
1832     cancel_ = true;
1833 }
1834
1835 static const char *CYPoolLibraryPath(CYPool &pool);
1836
1837 static bool initialized_ = false;
1838
1839 void CYInitializeDynamic() {
1840     if (!initialized_)
1841         initialized_ = true;
1842     else return;
1843
1844     CYPool pool;
1845     const char *db(pool.strcat(CYPoolLibraryPath(pool), "/libcycript.db", NULL));
1846     _sqlcall(sqlite3_open_v2(db, &database_, SQLITE_OPEN_READONLY, NULL));
1847
1848     JSObjectMakeArray$ = reinterpret_cast<JSObjectRef (*)(JSContextRef, size_t, const JSValueRef[], JSValueRef *)>(dlsym(RTLD_DEFAULT, "JSObjectMakeArray"));
1849     JSSynchronousGarbageCollectForDebugging$ = reinterpret_cast<void (*)(JSContextRef)>(dlsym(RTLD_DEFAULT, "JSSynchronousGarbageCollectForDebugging"));
1850
1851     JSClassDefinition definition;
1852
1853     definition = kJSClassDefinitionEmpty;
1854     definition.className = "All";
1855     definition.staticFunctions = All_staticFunctions;
1856     definition.hasProperty = &All_hasProperty;
1857     definition.getProperty = &All_getProperty;
1858     definition.getPropertyNames = &All_getPropertyNames;
1859     All_ = JSClassCreate(&definition);
1860
1861     definition = kJSClassDefinitionEmpty;
1862     definition.className = "Context";
1863     definition.finalize = &CYFinalize;
1864     Context_ = JSClassCreate(&definition);
1865
1866     definition = kJSClassDefinitionEmpty;
1867     definition.className = "CString";
1868     definition.staticFunctions = CString_staticFunctions;
1869     definition.staticValues = CString_staticValues;
1870     definition.getProperty = &CString_getProperty;
1871     definition.setProperty = &CString_setProperty;
1872     definition.finalize = &CYFinalize;
1873     CString_ = JSClassCreate(&definition);
1874
1875     definition = kJSClassDefinitionEmpty;
1876     definition.className = "Functor";
1877     definition.staticFunctions = cy::Functor::StaticFunctions;
1878     definition.staticValues = Functor_staticValues;
1879     definition.callAsFunction = &Functor_callAsFunction;
1880     definition.finalize = &CYFinalize;
1881     Functor_ = JSClassCreate(&definition);
1882
1883     definition = kJSClassDefinitionEmpty;
1884     definition.className = "Pointer";
1885     definition.staticFunctions = Pointer_staticFunctions;
1886     definition.staticValues = Pointer_staticValues;
1887     definition.callAsFunction = &Pointer_callAsFunction;
1888     definition.getProperty = &Pointer_getProperty;
1889     definition.setProperty = &Pointer_setProperty;
1890     definition.finalize = &CYFinalize;
1891     Pointer_ = JSClassCreate(&definition);
1892
1893     definition = kJSClassDefinitionEmpty;
1894     definition.className = "Struct";
1895     definition.staticFunctions = Struct_staticFunctions;
1896     definition.staticValues = Struct_staticValues;
1897     definition.getProperty = &Struct_getProperty;
1898     definition.setProperty = &Struct_setProperty;
1899     definition.getPropertyNames = &Struct_getPropertyNames;
1900     definition.finalize = &CYFinalize;
1901     Struct_ = JSClassCreate(&definition);
1902
1903     definition = kJSClassDefinitionEmpty;
1904     definition.className = "Type";
1905     definition.staticValues = Type_staticValues;
1906     definition.staticFunctions = Type_staticFunctions;
1907     definition.callAsFunction = &Type_callAsFunction;
1908     definition.callAsConstructor = &Type_callAsConstructor;
1909     definition.finalize = &CYFinalize;
1910     Type_privateData::Class_ = JSClassCreate(&definition);
1911
1912     definition = kJSClassDefinitionEmpty;
1913     definition.className = "Global";
1914     //definition.getProperty = &Global_getProperty;
1915     Global_ = JSClassCreate(&definition);
1916
1917     Array_s = JSStringCreateWithUTF8CString("Array");
1918     cy_s = JSStringCreateWithUTF8CString("$cy");
1919     cyi_s = JSStringCreateWithUTF8CString("$cyi");
1920     length_s = JSStringCreateWithUTF8CString("length");
1921     message_s = JSStringCreateWithUTF8CString("message");
1922     name_s = JSStringCreateWithUTF8CString("name");
1923     pop_s = JSStringCreateWithUTF8CString("pop");
1924     prototype_s = JSStringCreateWithUTF8CString("prototype");
1925     push_s = JSStringCreateWithUTF8CString("push");
1926     splice_s = JSStringCreateWithUTF8CString("splice");
1927     toCYON_s = JSStringCreateWithUTF8CString("toCYON");
1928     toJSON_s = JSStringCreateWithUTF8CString("toJSON");
1929     toPointer_s = JSStringCreateWithUTF8CString("toPointer");
1930     toString_s = JSStringCreateWithUTF8CString("toString");
1931     weak_s = JSStringCreateWithUTF8CString("weak");
1932
1933     Result_ = JSStringCreateWithUTF8CString("_");
1934
1935     for (CYHook *hook : GetHooks())
1936         if (hook->Initialize != NULL)
1937             (*hook->Initialize)();
1938 }
1939
1940 void CYThrow(JSContextRef context, JSValueRef value) {
1941     if (value != NULL)
1942         throw CYJSError(context, value);
1943 }
1944
1945 const char *CYJSError::PoolCString(CYPool &pool) const {
1946     std::set<void *> objects;
1947     // XXX: this used to be CYPoolCString
1948     return CYPoolCCYON(pool, context_, value_, objects);
1949 }
1950
1951 JSValueRef CYJSError::CastJSValue(JSContextRef context, const char *name) const {
1952     // XXX: what if the context is different? or the name? I dunno. ("epic" :/)
1953     return value_;
1954 }
1955
1956 JSValueRef CYCastJSError(JSContextRef context, const char *name, const char *message) {
1957     JSObjectRef Error(CYGetCachedObject(context, CYJSString(name)));
1958     JSValueRef arguments[1] = {CYCastJSValue(context, message)};
1959     return _jsccall(JSObjectCallAsConstructor, context, Error, 1, arguments);
1960 }
1961
1962 JSValueRef CYPoolError::CastJSValue(JSContextRef context, const char *name) const {
1963     return CYCastJSError(context, name, message_);
1964 }
1965
1966 CYJSError::CYJSError(JSContextRef context, const char *format, ...) {
1967     _assert(context != NULL);
1968
1969     CYPool pool;
1970
1971     va_list args;
1972     va_start(args, format);
1973     // XXX: there might be a beter way to think about this
1974     const char *message(pool.vsprintf(64, format, args));
1975     va_end(args);
1976
1977     value_ = CYCastJSError(context, "Error", message);
1978 }
1979
1980 JSGlobalContextRef CYGetJSContext(JSContextRef context) {
1981     return reinterpret_cast<Context *>(JSObjectGetPrivate(CYCastJSObject(context, CYGetProperty(context, CYGetGlobalObject(context), cy_s))))->context_;
1982 }
1983
1984 static const char *CYPoolLibraryPath(CYPool &pool) {
1985     Dl_info addr;
1986     _assert(dladdr(reinterpret_cast<void *>(&CYPoolLibraryPath), &addr) != 0);
1987     char *lib(pool.strdup(addr.dli_fname));
1988
1989     char *slash(strrchr(lib, '/'));
1990     _assert(slash != NULL);
1991     *slash = '\0';
1992
1993     slash = strrchr(lib, '/');
1994     if (slash != NULL && strcmp(slash, "/.libs") == 0)
1995         *slash = '\0';
1996
1997     return lib;
1998 }
1999
2000 static JSValueRef require_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
2001     _assert(count == 1);
2002     CYPool pool;
2003
2004     const char *name(CYPoolCString(pool, context, arguments[0]));
2005     if (strchr(name, '/') == NULL && (
2006 #ifdef __APPLE__
2007         dlopen(pool.strcat("/System/Library/Frameworks/", name, ".framework/", name, NULL), RTLD_LAZY | RTLD_GLOBAL) != NULL ||
2008         dlopen(pool.strcat("/System/Library/PrivateFrameworks/", name, ".framework/", name, NULL), RTLD_LAZY | RTLD_GLOBAL) != NULL ||
2009 #endif
2010     false))
2011         return CYJSUndefined(context);
2012
2013     JSObjectRef resolve(CYCastJSObject(context, CYGetProperty(context, object, CYJSString("resolve"))));
2014     CYJSString path(context, CYCallAsFunction(context, resolve, NULL, 1, arguments));
2015
2016     CYJSString property("exports");
2017
2018     JSObjectRef modules(CYGetCachedObject(context, CYJSString("modules")));
2019     JSValueRef cache(CYGetProperty(context, modules, path));
2020
2021     JSValueRef result;
2022     if (!JSValueIsUndefined(context, cache)) {
2023         JSObjectRef module(CYCastJSObject(context, cache));
2024         result = CYGetProperty(context, module, property);
2025     } else {
2026         CYUTF8String code(CYPoolFileUTF8String(pool, CYPoolCString(pool, context, path)));
2027         _assert(code.data != NULL);
2028
2029         size_t length(strlen(name));
2030         if (length >= 5 && strcmp(name + length - 5, ".json") == 0) {
2031             JSObjectRef JSON(CYGetCachedObject(context, CYJSString("JSON")));
2032             JSObjectRef parse(CYCastJSObject(context, CYGetProperty(context, JSON, CYJSString("parse"))));
2033             JSValueRef arguments[1] = { CYCastJSValue(context, CYJSString(code)) };
2034             result = CYCallAsFunction(context, parse, JSON, 1, arguments);
2035         } else {
2036             JSObjectRef module(JSObjectMake(context, NULL, NULL));
2037             CYSetProperty(context, modules, path, module);
2038
2039             JSObjectRef exports(JSObjectMake(context, NULL, NULL));
2040             CYSetProperty(context, module, property, exports);
2041
2042             std::stringstream wrap;
2043             wrap << "(function (exports, require, module, __filename) { " << code << "\n});";
2044             code = CYPoolCode(pool, *wrap.rdbuf());
2045
2046             JSValueRef value(_jsccall(JSEvaluateScript, context, CYJSString(code), NULL, NULL, 0));
2047             JSObjectRef function(CYCastJSObject(context, value));
2048
2049             JSValueRef arguments[4] = { exports, object, module, CYCastJSValue(context, path) };
2050             CYCallAsFunction(context, function, NULL, 4, arguments);
2051             result = CYGetProperty(context, module, property);
2052         }
2053     }
2054
2055     return result;
2056 } CYCatch(NULL) }
2057
2058 static bool CYRunScript(JSGlobalContextRef context, const char *path) {
2059     CYPool pool;
2060     CYUTF8String code(CYPoolFileUTF8String(pool, pool.strcat(CYPoolLibraryPath(pool), path, NULL)));
2061     if (code.data == NULL)
2062         return false;
2063
2064     code = CYPoolCode(pool, code);
2065     _jsccall(JSEvaluateScript, context, CYJSString(code), NULL, NULL, 0);
2066     return true;
2067 }
2068
2069 extern "C" void CYDestroyWeak(JSWeakObjectMapRef weak, void *data) {
2070 }
2071
2072 extern "C" void CYSetupContext(JSGlobalContextRef context) {
2073     CYInitializeDynamic();
2074
2075     JSObjectRef global(CYGetGlobalObject(context));
2076
2077     JSObjectRef cy(JSObjectMake(context, Context_, new Context(context)));
2078     CYSetProperty(context, global, cy_s, cy, kJSPropertyAttributeDontEnum);
2079
2080 /* Cache Globals {{{ */
2081     JSObjectRef Array(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Array"))));
2082     CYSetProperty(context, cy, CYJSString("Array"), Array);
2083
2084     JSObjectRef Array_prototype(CYCastJSObject(context, CYGetProperty(context, Array, prototype_s)));
2085     CYSetProperty(context, cy, CYJSString("Array_prototype"), Array_prototype);
2086
2087     JSObjectRef Boolean(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Boolean"))));
2088     CYSetProperty(context, cy, CYJSString("Boolean"), Boolean);
2089
2090     JSObjectRef Boolean_prototype(CYCastJSObject(context, CYGetProperty(context, Boolean, prototype_s)));
2091     CYSetProperty(context, cy, CYJSString("Boolean_prototype"), Boolean_prototype);
2092
2093     JSObjectRef Error(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Error"))));
2094     CYSetProperty(context, cy, CYJSString("Error"), Error);
2095
2096     JSObjectRef Function(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Function"))));
2097     CYSetProperty(context, cy, CYJSString("Function"), Function);
2098
2099     JSObjectRef Function_prototype(CYCastJSObject(context, CYGetProperty(context, Function, prototype_s)));
2100     CYSetProperty(context, cy, CYJSString("Function_prototype"), Function_prototype);
2101
2102     JSObjectRef JSON(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("JSON"))));
2103     CYSetProperty(context, cy, CYJSString("JSON"), JSON);
2104
2105     JSObjectRef Number(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Number"))));
2106     CYSetProperty(context, cy, CYJSString("Number"), Number);
2107
2108     JSObjectRef Number_prototype(CYCastJSObject(context, CYGetProperty(context, Number, prototype_s)));
2109     CYSetProperty(context, cy, CYJSString("Number_prototype"), Number_prototype);
2110
2111     JSObjectRef Object(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Object"))));
2112     CYSetProperty(context, cy, CYJSString("Object"), Object);
2113
2114     JSObjectRef Object_prototype(CYCastJSObject(context, CYGetProperty(context, Object, prototype_s)));
2115     CYSetProperty(context, cy, CYJSString("Object_prototype"), Object_prototype);
2116
2117     JSObjectRef String(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("String"))));
2118     CYSetProperty(context, cy, CYJSString("String"), String);
2119
2120     JSObjectRef String_prototype(CYCastJSObject(context, CYGetProperty(context, String, prototype_s)));
2121     CYSetProperty(context, cy, CYJSString("String_prototype"), String_prototype);
2122
2123     JSObjectRef SyntaxError(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("SyntaxError"))));
2124     CYSetProperty(context, cy, CYJSString("SyntaxError"), SyntaxError);
2125 /* }}} */
2126
2127     CYSetProperty(context, Array_prototype, toCYON_s, &Array_callAsFunction_toCYON, kJSPropertyAttributeDontEnum);
2128     CYSetProperty(context, String_prototype, toCYON_s, &String_callAsFunction_toCYON, kJSPropertyAttributeDontEnum);
2129
2130     JSObjectRef cycript(JSObjectMake(context, NULL, NULL));
2131     CYSetProperty(context, global, CYJSString("Cycript"), cycript);
2132     CYSetProperty(context, cycript, CYJSString("compile"), &Cycript_compile_callAsFunction);
2133     CYSetProperty(context, cycript, CYJSString("gc"), &Cycript_gc_callAsFunction);
2134
2135     JSObjectRef CString(JSObjectMakeConstructor(context, CString_, &CString_new));
2136     CYSetPrototype(context, CYCastJSObject(context, CYGetProperty(context, CString, prototype_s)), String_prototype);
2137     CYSetProperty(context, cycript, CYJSString("CString"), CString);
2138
2139     JSObjectRef Functor(JSObjectMakeConstructor(context, Functor_, &Functor_new));
2140     CYSetPrototype(context, CYCastJSObject(context, CYGetProperty(context, Functor, prototype_s)), Function_prototype);
2141     CYSetProperty(context, cycript, CYJSString("Functor"), Functor);
2142
2143     CYSetProperty(context, cycript, CYJSString("Pointer"), JSObjectMakeConstructor(context, Pointer_, &Pointer_new));
2144     CYSetProperty(context, cycript, CYJSString("Type"), JSObjectMakeConstructor(context, Type_privateData::Class_, &Type_new));
2145
2146     JSObjectRef modules(JSObjectMake(context, NULL, NULL));
2147     CYSetProperty(context, cy, CYJSString("modules"), modules);
2148
2149     JSObjectRef all(JSObjectMake(context, All_, NULL));
2150     CYSetProperty(context, cycript, CYJSString("all"), all);
2151
2152     JSObjectRef cache(JSObjectMake(context, NULL, NULL));
2153     CYSetProperty(context, cy, CYJSString("cache"), cache);
2154     CYSetPrototype(context, cache, all);
2155
2156     JSObjectRef alls(_jsccall(JSObjectCallAsConstructor, context, Array, 0, NULL));
2157     CYSetProperty(context, cycript, CYJSString("alls"), alls);
2158
2159     if (true) {
2160         JSObjectRef last(NULL), curr(global);
2161
2162         goto next; for (JSValueRef next;;) {
2163             if (JSValueIsNull(context, next))
2164                 break;
2165             last = curr;
2166             curr = CYCastJSObject(context, next);
2167           next:
2168             next = JSObjectGetPrototype(context, curr);
2169         }
2170
2171         CYSetPrototype(context, last, cache);
2172     }
2173
2174     JSObjectRef System(JSObjectMake(context, NULL, NULL));
2175     CYSetProperty(context, cy, CYJSString("System"), System);
2176
2177     CYSetProperty(context, global, CYJSString("require"), &require_callAsFunction, kJSPropertyAttributeDontEnum);
2178
2179     CYSetProperty(context, global, CYJSString("system"), System);
2180     CYSetProperty(context, System, CYJSString("args"), CYJSNull(context));
2181     CYSetProperty(context, System, CYJSString("print"), &System_print);
2182
2183     CYSetProperty(context, global, CYJSString("global"), global);
2184
2185 #ifdef __APPLE__
2186     if (&JSWeakObjectMapCreate != NULL) {
2187         JSWeakObjectMapRef weak(JSWeakObjectMapCreate(context, NULL, &CYDestroyWeak));
2188         CYSetProperty(context, cy, weak_s, CYCastJSValue(context, reinterpret_cast<uintptr_t>(weak)));
2189     }
2190 #endif
2191
2192     CYSetProperty(context, cache, CYJSString("dlerror"), CYMakeFunctor(context, "dlerror", "*"), kJSPropertyAttributeDontEnum);
2193     CYSetProperty(context, cache, CYJSString("RTLD_DEFAULT"), CYCastJSValue(context, reinterpret_cast<intptr_t>(RTLD_DEFAULT)), kJSPropertyAttributeDontEnum);
2194     CYSetProperty(context, cache, CYJSString("dlsym"), CYMakeFunctor(context, "dlsym", "^v^v*"), kJSPropertyAttributeDontEnum);
2195
2196     CYSetProperty(context, cache, CYJSString("NULL"), CYJSNull(context), kJSPropertyAttributeDontEnum);
2197
2198     CYSetProperty(context, cache, CYJSString("bool"), CYMakeType(context, sig::Primitive<bool>()), kJSPropertyAttributeDontEnum);
2199     CYSetProperty(context, cache, CYJSString("char"), CYMakeType(context, sig::Primitive<char>()), kJSPropertyAttributeDontEnum);
2200     CYSetProperty(context, cache, CYJSString("schar"), CYMakeType(context, sig::Primitive<signed char>()), kJSPropertyAttributeDontEnum);
2201     CYSetProperty(context, cache, CYJSString("uchar"), CYMakeType(context, sig::Primitive<unsigned char>()), kJSPropertyAttributeDontEnum);
2202
2203     CYSetProperty(context, cache, CYJSString("short"), CYMakeType(context, sig::Primitive<short>()), kJSPropertyAttributeDontEnum);
2204     CYSetProperty(context, cache, CYJSString("int"), CYMakeType(context, sig::Primitive<int>()), kJSPropertyAttributeDontEnum);
2205     CYSetProperty(context, cache, CYJSString("long"), CYMakeType(context, sig::Primitive<long>()), kJSPropertyAttributeDontEnum);
2206     CYSetProperty(context, cache, CYJSString("longlong"), CYMakeType(context, sig::Primitive<long long>()), kJSPropertyAttributeDontEnum);
2207
2208     CYSetProperty(context, cache, CYJSString("ushort"), CYMakeType(context, sig::Primitive<unsigned short>()), kJSPropertyAttributeDontEnum);
2209     CYSetProperty(context, cache, CYJSString("uint"), CYMakeType(context, sig::Primitive<unsigned int>()), kJSPropertyAttributeDontEnum);
2210     CYSetProperty(context, cache, CYJSString("ulong"), CYMakeType(context, sig::Primitive<unsigned long>()), kJSPropertyAttributeDontEnum);
2211     CYSetProperty(context, cache, CYJSString("ulonglong"), CYMakeType(context, sig::Primitive<unsigned long long>()), kJSPropertyAttributeDontEnum);
2212
2213     CYSetProperty(context, cache, CYJSString("float"), CYMakeType(context, sig::Primitive<float>()), kJSPropertyAttributeDontEnum);
2214     CYSetProperty(context, cache, CYJSString("double"), CYMakeType(context, sig::Primitive<double>()), kJSPropertyAttributeDontEnum);
2215
2216     for (CYHook *hook : GetHooks())
2217         if (hook->SetupContext != NULL)
2218             (*hook->SetupContext)(context);
2219
2220     CYArrayPush(context, alls, cycript);
2221
2222     CYRunScript(context, "/libcycript.cy");
2223 }
2224
2225 static JSGlobalContextRef context_;
2226
2227 _visible JSGlobalContextRef CYGetJSContext() {
2228     CYInitializeDynamic();
2229
2230     if (context_ == NULL) {
2231         context_ = JSGlobalContextCreate(Global_);
2232         CYSetupContext(context_);
2233     }
2234
2235     return context_;
2236 }
2237
2238 _visible void CYDestroyContext() {
2239     if (context_ == NULL)
2240         return;
2241     JSGlobalContextRelease(context_);
2242     context_ = NULL;
2243 }