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