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