ObjectiveC/Library.mm

   1 /* Cycript - Optimizing JavaScript Compiler/Runtime
   2  * Copyright (C) 2009-2013  Jay Freeman (saurik)
   3 */
   4
   5 /* GNU General Public License, Version 3 {{{ */
   6 /*
   7  * Cycript is free software: you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published
   9  * by the Free Software Foundation, either version 3 of the License,
  10  * or (at your option) any later version.
  11  *
  12  * Cycript is distributed in the hope that it will be useful, but
  13  * WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with Cycript.  If not, see <http://www.gnu.org/licenses/>.
  19 **/
  20 /* }}} */
  21
  22 #include <Foundation/Foundation.h>
  23
  24 #include "ObjectiveC/Internal.hpp"
  25
  26 #include <objc/objc-api.h>
  27
  28 #include "cycript.hpp"
  29
  30 #include "ObjectiveC/Internal.hpp"
  31
  32 #ifdef __APPLE__
  33 #include <CoreFoundation/CoreFoundation.h>
  34 #include <JavaScriptCore/JSStringRefCF.h>
  35 #include <objc/runtime.h>
  36 #endif
  37
  38 #ifdef __APPLE__
  39 #include <malloc/malloc.h>
  40 #include <mach/mach.h>
  41 #endif
  42
  43 #include "Error.hpp"
  44 #include "JavaScript.hpp"
  45 #include "String.hpp"
  46 #include "Execute.hpp"
  47
  48 #include <cmath>
  49 #include <map>
  50 #include <set>
  51
  52 #include <dlfcn.h>
  53
  54 #define CYObjectiveTry_ { \
  55     try
  56 #define CYObjectiveTry { \
  57     JSContextRef context(context_); \
  58     try
  59 #define CYObjectiveCatch \
  60     catch (const CYException &error) { \
  61         @throw CYCastNSObject(NULL, context, error.CastJSValue(context)); \
  62     } \
  63 }
  64
  65 #define CYPoolTry { \
  66     id _saved(nil); \
  67     NSAutoreleasePool *_pool([[NSAutoreleasePool alloc] init]); \
  68     @try
  69 #define CYPoolCatch(value) \
  70     @catch (NSException *error) { \
  71         _saved = [error retain]; \
  72         throw CYJSError(context, CYCastJSValue(context, error)); \
  73         return value; \
  74     } @finally { \
  75         [_pool release]; \
  76         if (_saved != nil) \
  77             [_saved autorelease]; \
  78     } \
  79 }
  80
  81 #define CYSadTry { \
  82     @try
  83 #define CYSadCatch(value) \
  84     @catch (NSException *error ) { \
  85         throw CYJSError(context, CYCastJSValue(context, error)); \
  86     } return value; \
  87 }
  88
  89 #ifndef __APPLE__
  90 #define class_getSuperclass GSObjCSuper
  91 #define class_getInstanceVariable GSCGetInstanceVariableDefinition
  92 #define class_getName GSNameFromClass
  93
  94 #define class_removeMethods(cls, list) GSRemoveMethodList(cls, list, YES)
  95
  96 #define ivar_getName(ivar) ((ivar)->ivar_name)
  97 #define ivar_getOffset(ivar) ((ivar)->ivar_offset)
  98 #define ivar_getTypeEncoding(ivar) ((ivar)->ivar_type)
  99
 100 #define method_getName(method) ((method)->method_name)
 101 #define method_getImplementation(method) ((method)->method_imp)
 102 #define method_getTypeEncoding(method) ((method)->method_types)
 103 #define method_setImplementation(method, imp) ((void) ((method)->method_imp = (imp)))
 104
 105 #undef objc_getClass
 106 #define objc_getClass GSClassFromName
 107
 108 #define objc_getProtocol GSProtocolFromName
 109
 110 #define object_getClass GSObjCClass
 111
 112 #define object_getInstanceVariable(object, name, value) ({ \
 113     objc_ivar *ivar(class_getInstanceVariable(object_getClass(object), name)); \
 114     _assert(value != NULL); \
 115     if (ivar != NULL) \
 116         GSObjCGetVariable(object, ivar_getOffset(ivar), sizeof(void *), value); \
 117     ivar; \
 118 })
 119
 120 #define object_setIvar(object, ivar, value) ({ \
 121     void *data = (value); \
 122     GSObjCSetVariable(object, ivar_getOffset(ivar), sizeof(void *), &data); \
 123 })
 124
 125 #define protocol_getName(protocol) [(protocol) name]
 126 #endif
 127
 128 static void (*$objc_setAssociatedObject)(id object, void *key, id value, objc_AssociationPolicy policy);
 129 static id (*$objc_getAssociatedObject)(id object, void *key);
 130 static void (*$objc_removeAssociatedObjects)(id object);
 131
 132 struct BlockLiteral {
 133     Class isa;
 134     int flags;
 135     int reserved;
 136     void (*invoke)(void *, ...);
 137     void *descriptor;
 138 };
 139
 140 struct BlockDescriptor1 {
 141     unsigned long int reserved;
 142     unsigned long int size;
 143 };
 144
 145 struct BlockDescriptor2 {
 146     void (*copy_helper)(BlockLiteral *dst, BlockLiteral *src);
 147     void (*dispose_helper)(BlockLiteral *src);
 148 };
 149
 150 struct BlockDescriptor3 {
 151     const char *signature;
 152     const char *layout;
 153 };
 154
 155 enum {
 156     BLOCK_DEALLOCATING = 0x0001,
 157     BLOCK_REFCOUNT_MASK = 0xfffe,
 158     BLOCK_NEEDS_FREE = 1 << 24,
 159     BLOCK_HAS_COPY_DISPOSE = 1 << 25,
 160     BLOCK_HAS_CTOR = 1 << 26,
 161     BLOCK_IS_GC = 1 << 27,
 162     BLOCK_IS_GLOBAL = 1 << 28,
 163     BLOCK_HAS_STRET = 1 << 29,
 164     BLOCK_HAS_SIGNATURE = 1 << 30,
 165 };
 166
 167 JSValueRef CYSendMessage(CYPool &pool, JSContextRef context, id self, Class super, SEL _cmd, size_t count, const JSValueRef arguments[], bool initialize);
 168
 169 /* Objective-C Pool Release {{{ */
 170 void CYPoolRelease_(void *data) {
 171     id object(reinterpret_cast<id>(data));
 172     [object release];
 173 }
 174
 175 id CYPoolRelease_(CYPool *pool, id object) {
 176     if (object == nil)
 177         return nil;
 178     else if (pool == NULL)
 179         return [object autorelease];
 180     else {
 181         pool->atexit(CYPoolRelease_);
 182         return object;
 183     }
 184 }
 185
 186 template <typename Type_>
 187 Type_ CYPoolRelease(CYPool *pool, Type_ object) {
 188     return (Type_) CYPoolRelease_(pool, (id) object);
 189 }
 190 /* }}} */
 191 /* Objective-C Strings {{{ */
 192 const char *CYPoolCString(CYPool &pool, JSContextRef context, NSString *value) {
 193     size_t size([value maximumLengthOfBytesUsingEncoding:NSUTF8StringEncoding] + 1);
 194     char *string(new(pool) char[size]);
 195     if (![value getCString:string maxLength:size encoding:NSUTF8StringEncoding])
 196         throw CYJSError(context, "[NSString getCString:maxLength:encoding:] == NO");
 197     return string;
 198 }
 199
 200 JSStringRef CYCopyJSString(JSContextRef context, NSString *value) {
 201 #ifdef __APPLE__
 202     return JSStringCreateWithCFString(reinterpret_cast<CFStringRef>(value));
 203 #else
 204     CYPool pool;
 205     return CYCopyJSString(CYPoolCString(pool, context, value));
 206 #endif
 207 }
 208
 209 JSStringRef CYCopyJSString(JSContextRef context, NSObject *value) {
 210     if (value == nil)
 211         return NULL;
 212     // XXX: this definition scares me; is anyone using this?!
 213     NSString *string([value description]);
 214     return CYCopyJSString(context, string);
 215 }
 216
 217 NSString *CYCopyNSString(const CYUTF8String &value) {
 218 #ifdef __APPLE__
 219     return (NSString *) CFStringCreateWithBytes(kCFAllocatorDefault, reinterpret_cast<const UInt8 *>(value.data), value.size, kCFStringEncodingUTF8, true);
 220 #else
 221     return [[NSString alloc] initWithBytes:value.data length:value.size encoding:NSUTF8StringEncoding];
 222 #endif
 223 }
 224
 225 NSString *CYCopyNSString(JSContextRef context, JSStringRef value) {
 226 #ifdef __APPLE__
 227     return (NSString *) JSStringCopyCFString(kCFAllocatorDefault, value);
 228 #else
 229     CYPool pool;
 230     return CYCopyNSString(CYPoolUTF8String(pool, context, value));
 231 #endif
 232 }
 233
 234 NSString *CYCopyNSString(JSContextRef context, JSValueRef value) {
 235     return CYCopyNSString(context, CYJSString(context, value));
 236 }
 237
 238 NSString *CYCastNSString(CYPool *pool, const CYUTF8String &value) {
 239     return CYPoolRelease(pool, CYCopyNSString(value));
 240 }
 241
 242 NSString *CYCastNSString(CYPool *pool, SEL sel) {
 243     const char *name(sel_getName(sel));
 244     return CYPoolRelease(pool, CYCopyNSString(CYUTF8String(name, strlen(name))));
 245 }
 246
 247 NSString *CYCastNSString(CYPool *pool, JSContextRef context, JSStringRef value) {
 248     return CYPoolRelease(pool, CYCopyNSString(context, value));
 249 }
 250
 251 CYUTF8String CYCastUTF8String(NSString *value) {
 252     NSData *data([value dataUsingEncoding:NSUTF8StringEncoding allowLossyConversion:NO]);
 253     return CYUTF8String(reinterpret_cast<const char *>([data bytes]), [data length]);
 254 }
 255 /* }}} */
 256
 257 JSValueRef CYCastJSValue(JSContextRef context, NSObject *value);
 258
 259 void CYThrow(JSContextRef context, NSException *error, JSValueRef *exception) {
 260     if (exception == NULL)
 261         throw error;
 262     *exception = CYCastJSValue(context, error);
 263 }
 264
 265 size_t CYGetIndex(NSString *value) {
 266     return CYGetIndex(CYCastUTF8String(value));
 267 }
 268
 269 bool CYGetOffset(CYPool &pool, JSContextRef context, NSString *value, ssize_t &index) {
 270     return CYGetOffset(CYPoolCString(pool, context, value), index);
 271 }
 272
 273 static JSClassRef Instance_;
 274
 275 static JSClassRef ArrayInstance_;
 276 static JSClassRef BooleanInstance_;
 277 static JSClassRef FunctionInstance_;
 278 static JSClassRef NumberInstance_;
 279 static JSClassRef ObjectInstance_;
 280 static JSClassRef StringInstance_;
 281
 282 static JSClassRef Class_;
 283 static JSClassRef Internal_;
 284 static JSClassRef Message_;
 285 static JSClassRef Messages_;
 286 static JSClassRef Selector_;
 287 static JSClassRef Super_;
 288
 289 static JSClassRef ObjectiveC_Classes_;
 290 static JSClassRef ObjectiveC_Constants_;
 291 static JSClassRef ObjectiveC_Protocols_;
 292
 293 #ifdef __APPLE__
 294 static JSClassRef ObjectiveC_Image_Classes_;
 295 static JSClassRef ObjectiveC_Images_;
 296 #endif
 297
 298 #ifdef __APPLE__
 299 static Class __NSMallocBlock__;
 300 static Class NSCFBoolean_;
 301 static Class NSCFType_;
 302 static Class NSGenericDeallocHandler_;
 303 static Class NSZombie_;
 304
 305 static std::set<Class> banned_;
 306 #else
 307 static Class NSBoolNumber_;
 308 #endif
 309
 310 static Class NSArray_;
 311 static Class NSBlock_;
 312 static Class NSDictionary_;
 313 static Class NSNumber_;
 314 static Class NSString_;
 315 static Class Object_;
 316
 317 static Type_privateData *Object_type;
 318 static Type_privateData *Selector_type;
 319
 320 Type_privateData *Instance::GetType() const {
 321     return Object_type;
 322 }
 323
 324 Type_privateData *Selector_privateData::GetType() const {
 325     return Selector_type;
 326 }
 327
 328 static JSValueRef Instance_callAsFunction_toString(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception);
 329
 330 JSValueRef CYGetClassPrototype(JSContextRef context, Class self, bool meta) {
 331     if (self == nil)
 332         return CYGetCachedObject(context, CYJSString("Instance_prototype"));
 333     else if (meta && !class_isMetaClass(self))
 334         return CYGetCachedObject(context, CYJSString("Class_prototype"));
 335
 336     JSObjectRef global(CYGetGlobalObject(context));
 337     JSObjectRef cy(CYCastJSObject(context, CYGetProperty(context, global, cy_s)));
 338
 339     char label[32];
 340     sprintf(label, "i%p", self);
 341     CYJSString name(label);
 342
 343     JSValueRef value(CYGetProperty(context, cy, name));
 344     if (!JSValueIsUndefined(context, value))
 345         return value;
 346
 347     JSClassRef _class(NULL);
 348     JSValueRef prototype;
 349
 350 #ifdef __APPLE__
 351     if (self == NSCFBoolean_)
 352 #else
 353     if (self == NSBoolNumber_)
 354 #endif
 355         prototype = CYGetCachedObject(context, CYJSString("BooleanInstance_prototype"));
 356     else if (self == NSArray_)
 357         prototype = CYGetCachedObject(context, CYJSString("ArrayInstance_prototype"));
 358     else if (self == NSBlock_)
 359         prototype = CYGetCachedObject(context, CYJSString("FunctionInstance_prototype"));
 360     else if (self == NSNumber_)
 361         prototype = CYGetCachedObject(context, CYJSString("NumberInstance_prototype"));
 362     else if (self == NSDictionary_)
 363         prototype = CYGetCachedObject(context, CYJSString("ObjectInstance_prototype"));
 364     else if (self == NSString_)
 365         prototype = CYGetCachedObject(context, CYJSString("StringInstance_prototype"));
 366     else
 367         prototype = CYGetClassPrototype(context, class_getSuperclass(self), meta);
 368
 369     JSObjectRef object(JSObjectMake(context, _class, NULL));
 370     JSObjectSetPrototype(context, object, prototype);
 371     CYSetProperty(context, cy, name, object);
 372
 373     return object;
 374 }
 375
 376 _finline JSValueRef CYGetClassPrototype(JSContextRef context, Class self) {
 377     return CYGetClassPrototype(context, self, class_isMetaClass(self));
 378 }
 379
 380 JSObjectRef Messages::Make(JSContextRef context, Class _class) {
 381     JSObjectRef value(JSObjectMake(context, Messages_, new Messages(_class)));
 382     if (Class super = class_getSuperclass(_class))
 383         JSObjectSetPrototype(context, value, Messages::Make(context, super));
 384     return value;
 385 }
 386
 387 JSObjectRef Internal::Make(JSContextRef context, id object, JSObjectRef owner) {
 388     return JSObjectMake(context, Internal_, new Internal(object, context, owner));
 389 }
 390
 391 namespace cy {
 392 JSObjectRef Super::Make(JSContextRef context, id object, Class _class) {
 393     JSObjectRef value(JSObjectMake(context, Super_, new Super(object, _class)));
 394     return value;
 395 } }
 396
 397 bool CYIsKindOfClass(id object, Class _class) {
 398     for (Class isa(object_getClass(object)); isa != NULL; isa = class_getSuperclass(isa))
 399         if (isa == _class)
 400             return true;
 401     return false;
 402 }
 403
 404 JSObjectRef Instance::Make(JSContextRef context, id object, Flags flags) {
 405     JSObjectRef value(JSObjectMake(context, CYIsKindOfClass(object, NSBlock_) ? FunctionInstance_ : Instance_, new Instance(object, flags)));
 406     JSObjectSetPrototype(context, value, CYGetClassPrototype(context, object_getClass(object)));
 407     return value;
 408 }
 409
 410 Instance::~Instance() {
 411     if ((flags_ & Transient) == 0)
 412         [GetValue() release];
 413 }
 414
 415 struct Message_privateData :
 416     cy::Functor
 417 {
 418     SEL sel_;
 419
 420     Message_privateData(SEL sel, const char *type, IMP value = NULL) :
 421         cy::Functor(type, reinterpret_cast<void (*)()>(value)),
 422         sel_(sel)
 423     {
 424     }
 425 };
 426
 427 JSObjectRef CYMakeInstance(JSContextRef context, id object, bool transient) {
 428     Instance::Flags flags;
 429
 430     if (transient)
 431         flags = Instance::Transient;
 432     else {
 433         flags = Instance::None;
 434         object = [object retain];
 435     }
 436
 437     return Instance::Make(context, object, flags);
 438 }
 439
 440 @interface NSMethodSignature (Cycript)
 441 - (NSString *) _typeString;
 442 @end
 443
 444 @interface NSObject (Cycript)
 445
 446 - (JSValueRef) cy$valueOfInContext:(JSContextRef)context;
 447 - (JSType) cy$JSType;
 448
 449 - (JSValueRef) cy$toJSON:(NSString *)key inContext:(JSContextRef)context;
 450 - (NSString *) cy$toCYON:(bool)objective;
 451
 452 - (bool) cy$hasProperty:(NSString *)name;
 453 - (NSObject *) cy$getProperty:(NSString *)name;
 454 - (JSValueRef) cy$getProperty:(NSString *)name inContext:(JSContextRef)context;
 455 - (bool) cy$setProperty:(NSString *)name to:(NSObject *)value;
 456 - (bool) cy$deleteProperty:(NSString *)name;
 457 - (void) cy$getPropertyNames:(JSPropertyNameAccumulatorRef)names inContext:(JSContextRef)context;
 458
 459 + (bool) cy$hasImplicitProperties;
 460
 461 @end
 462
 463 @protocol Cycript
 464 - (id) cy$box;
 465 - (JSValueRef) cy$valueOfInContext:(JSContextRef)context;
 466 @end
 467
 468 NSString *CYCastNSCYON(id value, bool objective) {
 469     NSString *string;
 470
 471     if (value == nil)
 472         string = @"nil";
 473     else {
 474         Class _class(object_getClass(value));
 475         SEL sel(@selector(cy$toCYON:));
 476
 477         if (objc_method *toCYON = class_getInstanceMethod(_class, sel))
 478             string = reinterpret_cast<NSString *(*)(id, SEL, bool)>(method_getImplementation(toCYON))(value, sel, objective);
 479         else if (objc_method *methodSignatureForSelector = class_getInstanceMethod(_class, @selector(methodSignatureForSelector:))) {
 480             if (reinterpret_cast<NSMethodSignature *(*)(id, SEL, SEL)>(method_getImplementation(methodSignatureForSelector))(value, @selector(methodSignatureForSelector:), sel) != nil)
 481                 string = [value cy$toCYON:objective];
 482             else goto fail;
 483         } else fail: {
 484             if (false);
 485 #ifdef __APPLE__
 486             else if (value == NSZombie_)
 487                 string = @"_NSZombie_";
 488             else if (_class == NSZombie_)
 489                 string = [NSString stringWithFormat:@"<_NSZombie_: %p>", value];
 490             // XXX: frowny /in/ the pants
 491             else if (banned_.find(value) != banned_.end())
 492                 string = nil;
 493 #endif
 494             else
 495                 string = [NSString stringWithFormat:@"%@", value];
 496         }
 497
 498         // XXX: frowny pants
 499         if (string == nil)
 500             string = @"undefined";
 501     }
 502
 503     return string;
 504 }
 505
 506 #ifdef __APPLE__
 507 struct PropertyAttributes {
 508     CYPool pool_;
 509
 510     const char *name;
 511
 512     const char *variable;
 513
 514     const char *getter_;
 515     const char *setter_;
 516
 517     bool readonly;
 518     bool copy;
 519     bool retain;
 520     bool nonatomic;
 521     bool dynamic;
 522     bool weak;
 523     bool garbage;
 524
 525     PropertyAttributes(objc_property_t property) :
 526         variable(NULL),
 527         getter_(NULL),
 528         setter_(NULL),
 529         readonly(false),
 530         copy(false),
 531         retain(false),
 532         nonatomic(false),
 533         dynamic(false),
 534         weak(false),
 535         garbage(false)
 536     {
 537         name = property_getName(property);
 538         const char *attributes(property_getAttributes(property));
 539
 540         for (char *token(pool_.strdup(attributes)), *next; token != NULL; token = next) {
 541             if ((next = strchr(token, ',')) != NULL)
 542                 *next++ = '\0';
 543             switch (*token) {
 544                 case 'R': readonly = true; break;
 545                 case 'C': copy = true; break;
 546                 case '&': retain = true; break;
 547                 case 'N': nonatomic = true; break;
 548                 case 'G': getter_ = token + 1; break;
 549                 case 'S': setter_ = token + 1; break;
 550                 case 'V': variable = token + 1; break;
 551             }
 552         }
 553
 554         /*if (variable == NULL) {
 555             variable = property_getName(property);
 556             size_t size(strlen(variable));
 557             char *name(new(pool_) char[size + 2]);
 558             name[0] = '_';
 559             memcpy(name + 1, variable, size);
 560             name[size + 1] = '\0';
 561             variable = name;
 562         }*/
 563     }
 564
 565     const char *Getter() {
 566         if (getter_ == NULL)
 567             getter_ = pool_.strdup(name);
 568         return getter_;
 569     }
 570
 571     const char *Setter() {
 572         if (setter_ == NULL && !readonly) {
 573             size_t length(strlen(name));
 574
 575             char *temp(new(pool_) char[length + 5]);
 576             temp[0] = 's';
 577             temp[1] = 'e';
 578             temp[2] = 't';
 579
 580             if (length != 0) {
 581                 temp[3] = toupper(name[0]);
 582                 memcpy(temp + 4, name + 1, length - 1);
 583             }
 584
 585             temp[length + 3] = ':';
 586             temp[length + 4] = '\0';
 587             setter_ = temp;
 588         }
 589
 590         return setter_;
 591     }
 592
 593 };
 594 #endif
 595
 596 @interface CYWebUndefined : NSObject {
 597 }
 598
 599 + (CYWebUndefined *) undefined;
 600
 601 @end
 602
 603 @implementation CYWebUndefined
 604
 605 + (CYWebUndefined *) undefined {
 606     static CYWebUndefined *instance_([[CYWebUndefined alloc] init]);
 607     return instance_;
 608 }
 609
 610 @end
 611
 612 #define WebUndefined CYWebUndefined
 613
 614 /* Bridge: CYJSObject {{{ */
 615 @interface CYJSObject : NSMutableDictionary {
 616     JSObjectRef object_;
 617     JSGlobalContextRef context_;
 618 }
 619
 620 - (id) initWithJSObject:(JSObjectRef)object inContext:(JSContextRef)context;
 621
 622 - (NSUInteger) count;
 623 - (id) objectForKey:(id)key;
 624 - (NSEnumerator *) keyEnumerator;
 625 - (void) setObject:(id)object forKey:(id)key;
 626 - (void) removeObjectForKey:(id)key;
 627
 628 @end
 629 /* }}} */
 630 /* Bridge: CYJSArray {{{ */
 631 @interface CYJSArray : NSMutableArray {
 632     JSObjectRef object_;
 633     JSGlobalContextRef context_;
 634 }
 635
 636 - (id) initWithJSObject:(JSObjectRef)object inContext:(JSContextRef)context;
 637
 638 - (NSUInteger) count;
 639 - (id) objectAtIndex:(NSUInteger)index;
 640
 641 - (void) addObject:(id)anObject;
 642 - (void) insertObject:(id)anObject atIndex:(NSUInteger)index;
 643 - (void) removeLastObject;
 644 - (void) removeObjectAtIndex:(NSUInteger)index;
 645 - (void) replaceObjectAtIndex:(NSUInteger)index withObject:(id)anObject;
 646
 647 @end
 648 /* }}} */
 649
 650 _finline bool CYJSValueIsNSObject(JSContextRef context, JSValueRef value) {
 651     return JSValueIsObjectOfClass(context, value, Instance_) || JSValueIsObjectOfClass(context, value, FunctionInstance_);
 652 }
 653
 654 _finline bool CYJSValueIsInstanceOfCachedConstructor(JSContextRef context, JSValueRef value, JSStringRef cache) {
 655     return _jsccall(JSValueIsInstanceOfConstructor, context, value, CYGetCachedObject(context, cache));
 656 }
 657
 658 struct CYBlockDescriptor {
 659     struct {
 660         BlockDescriptor1 one_;
 661         BlockDescriptor2 two_;
 662         BlockDescriptor3 three_;
 663     } d_;
 664
 665     Closure_privateData *internal_;
 666 };
 667
 668 void CYDisposeBlock(BlockLiteral *literal) {
 669     delete reinterpret_cast<CYBlockDescriptor *>(literal->descriptor)->internal_;
 670 }
 671
 672 static JSValueRef BlockAdapter_(JSContextRef context, size_t count, JSValueRef values[], JSObjectRef function) {
 673     JSObjectRef _this(CYCastJSObject(context, values[0]));
 674     return CYCallAsFunction(context, function, _this, count - 1, values + 1);
 675 }
 676
 677 static void BlockClosure_(ffi_cif *cif, void *result, void **arguments, void *arg) {
 678     CYExecuteClosure(cif, result, arguments, arg, &BlockAdapter_);
 679 }
 680
 681 NSObject *CYMakeBlock(JSContextRef context, JSObjectRef function, sig::Signature &signature) {
 682     _assert(__NSMallocBlock__ != Nil);
 683     BlockLiteral *literal(reinterpret_cast<BlockLiteral *>(malloc(sizeof(BlockLiteral))));
 684
 685     CYBlockDescriptor *descriptor(new CYBlockDescriptor);
 686     memset(&descriptor->d_, 0, sizeof(descriptor->d_));
 687
 688     descriptor->internal_ = CYMakeFunctor_(context, function, signature, &BlockClosure_);
 689     literal->invoke = reinterpret_cast<void (*)(void *, ...)>(descriptor->internal_->GetValue());
 690
 691     literal->isa = __NSMallocBlock__;
 692     literal->flags = BLOCK_HAS_SIGNATURE | BLOCK_HAS_COPY_DISPOSE | BLOCK_IS_GLOBAL;
 693     literal->reserved = 0;
 694     literal->descriptor = descriptor;
 695
 696     descriptor->d_.one_.size = sizeof(descriptor->d_);
 697     descriptor->d_.two_.dispose_helper = &CYDisposeBlock;
 698     descriptor->d_.three_.signature = sig::Unparse(*descriptor->internal_->pool_, &signature);
 699
 700     return reinterpret_cast<NSObject *>(literal);
 701 }
 702
 703 NSObject *CYCastNSObject(CYPool *pool, JSContextRef context, JSObjectRef object) {
 704     if (CYJSValueIsNSObject(context, object)) {
 705         Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(object)));
 706         return internal->GetValue();
 707     }
 708
 709     bool array(CYJSValueIsInstanceOfCachedConstructor(context, object, Array_s));
 710     id value(array ? [CYJSArray alloc] : [CYJSObject alloc]);
 711     return CYPoolRelease(pool, [value initWithJSObject:object inContext:context]);
 712 }
 713
 714 NSNumber *CYCopyNSNumber(JSContextRef context, JSValueRef value) {
 715     return [[NSNumber alloc] initWithDouble:CYCastDouble(context, value)];
 716 }
 717
 718 #ifndef __APPLE__
 719 @interface NSBoolNumber : NSNumber {
 720 }
 721 @end
 722 #endif
 723
 724 id CYNSObject(CYPool *pool, JSContextRef context, JSValueRef value, bool cast) {
 725     id object;
 726     bool copy;
 727
 728     switch (JSType type = JSValueGetType(context, value)) {
 729         case kJSTypeUndefined:
 730             object = [WebUndefined undefined];
 731             copy = false;
 732         break;
 733
 734         case kJSTypeNull:
 735             return NULL;
 736         break;
 737
 738         case kJSTypeBoolean:
 739 #ifdef __APPLE__
 740             object = (id) (CYCastBool(context, value) ? kCFBooleanTrue : kCFBooleanFalse);
 741             copy = false;
 742 #else
 743             object = [[NSBoolNumber alloc] initWithBool:CYCastBool(context, value)];
 744             copy = true;
 745 #endif
 746         break;
 747
 748         case kJSTypeNumber:
 749             object = CYCopyNSNumber(context, value);
 750             copy = true;
 751         break;
 752
 753         case kJSTypeString:
 754             object = CYCopyNSString(context, value);
 755             copy = true;
 756         break;
 757
 758         case kJSTypeObject:
 759             // XXX: this might could be more efficient
 760             object = CYCastNSObject(pool, context, (JSObjectRef) value);
 761             copy = false;
 762         break;
 763
 764         default:
 765             throw CYJSError(context, "JSValueGetType() == 0x%x", type);
 766         break;
 767     }
 768
 769     if (cast != copy)
 770         return object;
 771     else if (copy)
 772         return CYPoolRelease(pool, object);
 773     else
 774         return [object retain];
 775 }
 776
 777 NSObject *CYCastNSObject(CYPool *pool, JSContextRef context, JSValueRef value) {
 778     return CYNSObject(pool, context, value, true);
 779 }
 780
 781 NSObject *CYCopyNSObject(CYPool &pool, JSContextRef context, JSValueRef value) {
 782     return CYNSObject(&pool, context, value, false);
 783 }
 784
 785 /* Bridge: NSArray {{{ */
 786 @implementation NSArray (Cycript)
 787
 788 - (id) cy$box {
 789     return [[self mutableCopy] autorelease];
 790 }
 791
 792 - (NSString *) cy$toCYON:(bool)objective {
 793     NSMutableString *json([[[NSMutableString alloc] init] autorelease]);
 794     [json appendString:@"@["];
 795
 796     bool comma(false);
 797 #ifdef __APPLE__
 798     for (id object in self) {
 799 #else
 800     for (size_t index(0), count([self count]); index != count; ++index) {
 801         id object([self objectAtIndex:index]);
 802 #endif
 803         if (comma)
 804             [json appendString:@","];
 805         else
 806             comma = true;
 807         if (object == nil || [object cy$JSType] != kJSTypeUndefined)
 808             [json appendString:CYCastNSCYON(object, true)];
 809         else {
 810             [json appendString:@","];
 811             comma = false;
 812         }
 813     }
 814
 815     [json appendString:@"]"];
 816     return json;
 817 }
 818
 819 - (bool) cy$hasProperty:(NSString *)name {
 820     if ([name isEqualToString:@"length"])
 821         return true;
 822
 823     size_t index(CYGetIndex(name));
 824     if (index == _not(size_t) || index >= [self count])
 825         return [super cy$hasProperty:name];
 826     else
 827         return true;
 828 }
 829
 830 - (NSObject *) cy$getProperty:(NSString *)name {
 831     size_t index(CYGetIndex(name));
 832     if (index == _not(size_t) || index >= [self count])
 833         return [super cy$getProperty:name];
 834     else
 835         return [self objectAtIndex:index];
 836 }
 837
 838 - (JSValueRef) cy$getProperty:(NSString *)name inContext:(JSContextRef)context {
 839     CYObjectiveTry_ {
 840         if ([name isEqualToString:@"length"])
 841             return CYCastJSValue(context, [self count]);
 842     } CYObjectiveCatch
 843
 844     return [super cy$getProperty:name inContext:context];
 845 }
 846
 847 - (void) cy$getPropertyNames:(JSPropertyNameAccumulatorRef)names inContext:(JSContextRef)context {
 848     [super cy$getPropertyNames:names inContext:context];
 849
 850     for (size_t index(0), count([self count]); index != count; ++index) {
 851         id object([self objectAtIndex:index]);
 852         if (object == nil || [object cy$JSType] != kJSTypeUndefined) {
 853             char name[32];
 854             sprintf(name, "%zu", index);
 855             JSPropertyNameAccumulatorAddName(names, CYJSString(name));
 856         }
 857     }
 858 }
 859
 860 + (bool) cy$hasImplicitProperties {
 861     return false;
 862 }
 863
 864 @end
 865 /* }}} */
 866 /* Bridge: NSBlock {{{ */
 867 #ifdef __APPLE__
 868 @interface NSBlock
 869 - (void) invoke;
 870 @end
 871 #endif
 872 /* }}} */
 873 /* Bridge: NSBoolNumber {{{ */
 874 #ifndef __APPLE__
 875 @implementation NSBoolNumber (Cycript)
 876
 877 - (JSType) cy$JSType {
 878     return kJSTypeBoolean;
 879 }
 880
 881 - (NSString *) cy$toCYON:(bool)objective {
 882     NSString *value([self boolValue] ? @"true" : @"false");
 883     return objective ? value : [NSString stringWithFormat:@"@%@", value];
 884 }
 885
 886 - (JSValueRef) cy$valueOfInContext:(JSContextRef)context { CYObjectiveTry_ {
 887     return CYCastJSValue(context, (bool) [self boolValue]);
 888 } CYObjectiveCatch }
 889
 890 @end
 891 #endif
 892 /* }}} */
 893 /* Bridge: NSDictionary {{{ */
 894 @implementation NSDictionary (Cycript)
 895
 896 - (id) cy$box {
 897     return [[self mutableCopy] autorelease];
 898 }
 899
 900 - (NSString *) cy$toCYON:(bool)objective {
 901     NSMutableString *json([[[NSMutableString alloc] init] autorelease]);
 902     [json appendString:@"@{"];
 903
 904     bool comma(false);
 905 #ifdef __APPLE__
 906     for (NSObject *key in self) {
 907 #else
 908     NSEnumerator *keys([self keyEnumerator]);
 909     while (NSObject *key = [keys nextObject]) {
 910 #endif
 911         if (comma)
 912             [json appendString:@","];
 913         else
 914             comma = true;
 915         [json appendString:CYCastNSCYON(key, true)];
 916         [json appendString:@":"];
 917         NSObject *object([self objectForKey:key]);
 918         [json appendString:CYCastNSCYON(object, true)];
 919     }
 920
 921     [json appendString:@"}"];
 922     return json;
 923 }
 924
 925 - (bool) cy$hasProperty:(NSString *)name {
 926     return [self objectForKey:name] != nil;
 927 }
 928
 929 - (NSObject *) cy$getProperty:(NSString *)name {
 930     return [self objectForKey:name];
 931 }
 932
 933 - (void) cy$getPropertyNames:(JSPropertyNameAccumulatorRef)names inContext:(JSContextRef)context {
 934     [super cy$getPropertyNames:names inContext:context];
 935
 936 #ifdef __APPLE__
 937     for (NSObject *key in self) {
 938 #else
 939     NSEnumerator *keys([self keyEnumerator]);
 940     while (NSObject *key = [keys nextObject]) {
 941 #endif
 942         JSPropertyNameAccumulatorAddName(names, CYJSString(context, key));
 943     }
 944 }
 945
 946 + (bool) cy$hasImplicitProperties {
 947     return false;
 948 }
 949
 950 @end
 951 /* }}} */
 952 /* Bridge: NSMutableArray {{{ */
 953 @implementation NSMutableArray (Cycript)
 954
 955 - (bool) cy$setProperty:(NSString *)name to:(NSObject *)value {
 956     if ([name isEqualToString:@"length"]) {
 957         // XXX: is this not intelligent?
 958         NSNumber *number(reinterpret_cast<NSNumber *>(value));
 959 #ifdef __APPLE__
 960         NSUInteger size([number unsignedIntegerValue]);
 961 #else
 962         NSUInteger size([number unsignedIntValue]);
 963 #endif
 964         NSUInteger count([self count]);
 965         if (size < count)
 966             [self removeObjectsInRange:NSMakeRange(size, count - size)];
 967         else if (size != count) {
 968             WebUndefined *undefined([WebUndefined undefined]);
 969             for (size_t i(count); i != size; ++i)
 970                 [self addObject:undefined];
 971         }
 972         return true;
 973     }
 974
 975     size_t index(CYGetIndex(name));
 976     if (index == _not(size_t))
 977         return [super cy$setProperty:name to:value];
 978
 979     id object(value ?: [NSNull null]);
 980
 981     size_t count([self count]);
 982     if (index < count)
 983         [self replaceObjectAtIndex:index withObject:object];
 984     else {
 985         if (index != count) {
 986             WebUndefined *undefined([WebUndefined undefined]);
 987             for (size_t i(count); i != index; ++i)
 988                 [self addObject:undefined];
 989         }
 990
 991         [self addObject:object];
 992     }
 993
 994     return true;
 995 }
 996
 997 - (bool) cy$deleteProperty:(NSString *)name {
 998     size_t index(CYGetIndex(name));
 999     if (index == _not(size_t) || index >= [self count])
1000         return [super cy$deleteProperty:name];
1001     [self replaceObjectAtIndex:index withObject:[WebUndefined undefined]];
1002     return true;
1003 }
1004
1005 @end
1006 /* }}} */
1007 /* Bridge: NSMutableDictionary {{{ */
1008 @implementation NSMutableDictionary (Cycript)
1009
1010 - (bool) cy$setProperty:(NSString *)name to:(NSObject *)value {
1011     [self setObject:(value ?: [NSNull null]) forKey:name];
1012     return true;
1013 }
1014
1015 - (bool) cy$deleteProperty:(NSString *)name {
1016     if ([self objectForKey:name] == nil)
1017         return false;
1018     else {
1019         [self removeObjectForKey:name];
1020         return true;
1021     }
1022 }
1023
1024 @end
1025 /* }}} */
1026 /* Bridge: NSNumber {{{ */
1027 @implementation NSNumber (Cycript)
1028
1029 - (JSType) cy$JSType {
1030 #ifdef __APPLE__
1031     // XXX: this just seems stupid
1032     if ([self class] == NSCFBoolean_)
1033         return kJSTypeBoolean;
1034 #endif
1035     return kJSTypeNumber;
1036 }
1037
1038 - (NSString *) cy$toCYON:(bool)objective {
1039     NSString *value([self cy$JSType] != kJSTypeBoolean ? [self stringValue] : [self boolValue] ? @"true" : @"false");
1040     return objective ? value : [NSString stringWithFormat:@"@%@", value];
1041 }
1042
1043 - (JSValueRef) cy$valueOfInContext:(JSContextRef)context { CYObjectiveTry_ {
1044     return [self cy$JSType] != kJSTypeBoolean ? CYCastJSValue(context, [self doubleValue]) : CYCastJSValue(context, static_cast<bool>([self boolValue]));
1045 } CYObjectiveCatch }
1046
1047 @end
1048 /* }}} */
1049 /* Bridge: NSNull {{{ */
1050 @implementation NSNull (Cycript)
1051
1052 - (JSType) cy$JSType {
1053     return kJSTypeNull;
1054 }
1055
1056 - (NSString *) cy$toCYON:(bool)objective {
1057     NSString *value(@"null");
1058     return objective ? value : [NSString stringWithFormat:@"@%@", value];
1059 }
1060
1061 - (JSValueRef) cy$valueOfInContext:(JSContextRef)context { CYObjectiveTry_ {
1062     return CYJSNull(context);
1063 } CYObjectiveCatch }
1064
1065 @end
1066 /* }}} */
1067 /* Bridge: NSObject {{{ */
1068 @implementation NSObject (Cycript)
1069
1070 - (id) cy$box {
1071     return self;
1072 }
1073
1074 - (JSValueRef) cy$toJSON:(NSString *)key inContext:(JSContextRef)context {
1075     return [self cy$valueOfInContext:context];
1076 }
1077
1078 - (JSValueRef) cy$valueOfInContext:(JSContextRef)context { CYObjectiveTry_ {
1079     return NULL;
1080 } CYObjectiveCatch }
1081
1082 - (JSType) cy$JSType {
1083     return kJSTypeObject;
1084 }
1085
1086 - (NSString *) cy$toCYON:(bool)objective {
1087     return [@"#" stringByAppendingString:[[self description] cy$toCYON:true]];
1088 }
1089
1090 - (bool) cy$hasProperty:(NSString *)name {
1091     return false;
1092 }
1093
1094 - (NSObject *) cy$getProperty:(NSString *)name {
1095     return nil;
1096 }
1097
1098 - (JSValueRef) cy$getProperty:(NSString *)name inContext:(JSContextRef)context { CYObjectiveTry_ {
1099     if (NSObject *value = [self cy$getProperty:name])
1100         return CYCastJSValue(context, value);
1101     return NULL;
1102 } CYObjectiveCatch }
1103
1104 - (bool) cy$setProperty:(NSString *)name to:(NSObject *)value {
1105     return false;
1106 }
1107
1108 - (bool) cy$deleteProperty:(NSString *)name {
1109     return false;
1110 }
1111
1112 - (void) cy$getPropertyNames:(JSPropertyNameAccumulatorRef)names inContext:(JSContextRef)context {
1113 }
1114
1115 + (bool) cy$hasImplicitProperties {
1116     return true;
1117 }
1118
1119 @end
1120 /* }}} */
1121 /* Bridge: NSProxy {{{ */
1122 @implementation NSProxy (Cycript)
1123
1124 - (NSString *) cy$toCYON:(bool)objective {
1125     return [[self description] cy$toCYON:objective];
1126 }
1127
1128 @end
1129 /* }}} */
1130 /* Bridge: NSSet {{{ */
1131 @implementation NSSet (Cycript)
1132
1133 - (NSString *) cy$toCYON:(bool)objective {
1134     NSMutableString *json([[[NSMutableString alloc] init] autorelease]);
1135     [json appendString:@"[NSSet setWithArray:"];
1136     [json appendString:CYCastNSCYON([self allObjects], true)];
1137     [json appendString:@"]]"];
1138     return json;
1139 }
1140
1141 @end
1142 /* }}} */
1143 /* Bridge: NSString {{{ */
1144 @implementation NSString (Cycript)
1145
1146 - (id) cy$box {
1147     return [[self copy] autorelease];
1148 }
1149
1150 - (JSType) cy$JSType {
1151     return kJSTypeString;
1152 }
1153
1154 - (NSString *) cy$toCYON:(bool)objective {
1155     std::ostringstream str;
1156     if (!objective)
1157         str << '@';
1158     CYUTF8String string(CYCastUTF8String(self));
1159     CYStringify(str, string.data, string.size);
1160     std::string value(str.str());
1161     return CYCastNSString(NULL, CYUTF8String(value.c_str(), value.size()));
1162 }
1163
1164 - (bool) cy$hasProperty:(NSString *)name {
1165     size_t index(CYGetIndex(name));
1166     if (index == _not(size_t) || index >= [self length])
1167         return [super cy$hasProperty:name];
1168     else
1169         return true;
1170 }
1171
1172 - (NSObject *) cy$getProperty:(NSString *)name {
1173     size_t index(CYGetIndex(name));
1174     if (index == _not(size_t) || index >= [self length])
1175         return [super cy$getProperty:name];
1176     else
1177         return [self substringWithRange:NSMakeRange(index, 1)];
1178 }
1179
1180 - (void) cy$getPropertyNames:(JSPropertyNameAccumulatorRef)names inContext:(JSContextRef)context {
1181     [super cy$getPropertyNames:names inContext:context];
1182
1183     for (size_t index(0), length([self length]); index != length; ++index) {
1184         char name[32];
1185         sprintf(name, "%zu", index);
1186         JSPropertyNameAccumulatorAddName(names, CYJSString(name));
1187     }
1188 }
1189
1190 - (JSValueRef) cy$valueOfInContext:(JSContextRef)context { CYObjectiveTry_ {
1191     return CYCastJSValue(context, CYJSString(context, self));
1192 } CYObjectiveCatch }
1193
1194 @end
1195 /* }}} */
1196 /* Bridge: WebUndefined {{{ */
1197 @implementation WebUndefined (Cycript)
1198
1199 - (JSType) cy$JSType {
1200     return kJSTypeUndefined;
1201 }
1202
1203 - (NSString *) cy$toCYON:(bool)objective {
1204     NSString *value(@"undefined");
1205     return value; // XXX: maybe use the below code, adding @undefined?
1206     //return objective ? value : [NSString stringWithFormat:@"@%@", value];
1207 }
1208
1209 - (JSValueRef) cy$valueOfInContext:(JSContextRef)context { CYObjectiveTry_ {
1210     return CYJSUndefined(context);
1211 } CYObjectiveCatch }
1212
1213 @end
1214 /* }}} */
1215
1216 static bool CYIsClass(id self) {
1217 #ifdef __APPLE__
1218     return class_isMetaClass(object_getClass(self));
1219 #else
1220     return GSObjCIsClass(self);
1221 #endif
1222 }
1223
1224 Class CYCastClass(CYPool &pool, JSContextRef context, JSValueRef value) {
1225     id self(CYCastNSObject(&pool, context, value));
1226     if (CYIsClass(self))
1227         return (Class) self;
1228     throw CYJSError(context, "got something that is not a Class");
1229     return NULL;
1230 }
1231
1232 NSArray *CYCastNSArray(JSContextRef context, JSPropertyNameArrayRef names) {
1233     CYPool pool;
1234     size_t size(JSPropertyNameArrayGetCount(names));
1235     NSMutableArray *array([NSMutableArray arrayWithCapacity:size]);
1236     for (size_t index(0); index != size; ++index)
1237         [array addObject:CYCastNSString(&pool, context, JSPropertyNameArrayGetNameAtIndex(names, index))];
1238     return array;
1239 }
1240
1241 JSValueRef CYCastJSValue(JSContextRef context, NSObject *value) { CYPoolTry {
1242     if (value == nil)
1243         return CYJSNull(context);
1244     else
1245         return CYMakeInstance(context, value, false);
1246 } CYPoolCatch(NULL) return /*XXX*/ NULL; }
1247
1248 @implementation CYJSObject
1249
1250 - (id) initWithJSObject:(JSObjectRef)object inContext:(JSContextRef)context { CYObjectiveTry_ {
1251     if ((self = [super init]) != nil) {
1252         object_ = object;
1253         context_ = CYGetJSContext(context);
1254         JSGlobalContextRetain(context_);
1255         JSValueProtect(context_, object_);
1256     } return self;
1257 } CYObjectiveCatch }
1258
1259 - (void) dealloc { CYObjectiveTry {
1260     JSValueUnprotect(context_, object_);
1261     JSGlobalContextRelease(context_);
1262     [super dealloc];
1263 } CYObjectiveCatch }
1264
1265 - (NSString *) cy$toCYON:(bool)objective { CYObjectiveTry {
1266     CYPool pool;
1267     const char *cyon(CYPoolCCYON(pool, context, object_));
1268     if (cyon == NULL)
1269         return [super cy$toCYON:objective];
1270     else
1271         return [NSString stringWithUTF8String:cyon];
1272 } CYObjectiveCatch }
1273
1274 - (NSUInteger) count { CYObjectiveTry {
1275     JSPropertyNameArrayRef names(JSObjectCopyPropertyNames(context, object_));
1276     size_t size(JSPropertyNameArrayGetCount(names));
1277     JSPropertyNameArrayRelease(names);
1278     return size;
1279 } CYObjectiveCatch }
1280
1281 - (id) objectForKey:(id)key { CYObjectiveTry {
1282     JSValueRef value(CYGetProperty(context, object_, CYJSString(context, (NSObject *) key)));
1283     if (JSValueIsUndefined(context, value))
1284         return nil;
1285     return CYCastNSObject(NULL, context, value) ?: [NSNull null];
1286 } CYObjectiveCatch }
1287
1288 - (NSEnumerator *) keyEnumerator { CYObjectiveTry {
1289     JSPropertyNameArrayRef names(JSObjectCopyPropertyNames(context, object_));
1290     NSEnumerator *enumerator([CYCastNSArray(context, names) objectEnumerator]);
1291     JSPropertyNameArrayRelease(names);
1292     return enumerator;
1293 } CYObjectiveCatch }
1294
1295 - (void) setObject:(id)object forKey:(id)key { CYObjectiveTry {
1296     CYSetProperty(context, object_, CYJSString(context, (NSObject *) key), CYCastJSValue(context, (NSString *) object));
1297 } CYObjectiveCatch }
1298
1299 - (void) removeObjectForKey:(id)key { CYObjectiveTry {
1300     (void) _jsccall(JSObjectDeleteProperty, context, object_, CYJSString(context, (NSObject *) key));
1301 } CYObjectiveCatch }
1302
1303 @end
1304
1305 @implementation CYJSArray
1306
1307 - (NSString *) cy$toCYON:(bool)objective { CYObjectiveTry {
1308     CYPool pool;
1309     return [NSString stringWithUTF8String:CYPoolCCYON(pool, context, object_)];
1310 } CYObjectiveCatch }
1311
1312 - (id) initWithJSObject:(JSObjectRef)object inContext:(JSContextRef)context { CYObjectiveTry_ {
1313     if ((self = [super init]) != nil) {
1314         object_ = object;
1315         context_ = CYGetJSContext(context);
1316         JSGlobalContextRetain(context_);
1317         JSValueProtect(context_, object_);
1318     } return self;
1319 } CYObjectiveCatch }
1320
1321 - (void) dealloc { CYObjectiveTry {
1322     JSValueUnprotect(context_, object_);
1323     JSGlobalContextRelease(context_);
1324     [super dealloc];
1325 } CYObjectiveCatch }
1326
1327 - (NSUInteger) count { CYObjectiveTry {
1328     return CYArrayLength(context, object_);
1329 } CYObjectiveCatch }
1330
1331 - (id) objectAtIndex:(NSUInteger)index { CYObjectiveTry {
1332     size_t bounds([self count]);
1333     if (index >= bounds)
1334         @throw [NSException exceptionWithName:NSRangeException reason:[NSString stringWithFormat:@"*** -[CYJSArray objectAtIndex:]: index (%zu) beyond bounds (%zu)", static_cast<size_t>(index), bounds] userInfo:nil];
1335     JSValueRef value(_jsccall(JSObjectGetPropertyAtIndex, context, object_, index));
1336     return CYCastNSObject(NULL, context, value) ?: [NSNull null];
1337 } CYObjectiveCatch }
1338
1339 - (void) addObject:(id)object { CYObjectiveTry {
1340     CYArrayPush(context, object_, CYCastJSValue(context, (NSObject *) object));
1341 } CYObjectiveCatch }
1342
1343 - (void) insertObject:(id)object atIndex:(NSUInteger)index { CYObjectiveTry {
1344     size_t bounds([self count] + 1);
1345     if (index >= bounds)
1346         @throw [NSException exceptionWithName:NSRangeException reason:[NSString stringWithFormat:@"*** -[CYJSArray insertObject:atIndex:]: index (%zu) beyond bounds (%zu)", static_cast<size_t>(index), bounds] userInfo:nil];
1347     JSValueRef arguments[3];
1348     arguments[0] = CYCastJSValue(context, index);
1349     arguments[1] = CYCastJSValue(context, 0);
1350     arguments[2] = CYCastJSValue(context, (NSObject *) object);
1351     JSObjectRef Array(CYGetCachedObject(context, CYJSString("Array_prototype")));
1352     _jsccall(JSObjectCallAsFunction, context, CYCastJSObject(context, CYGetProperty(context, Array, splice_s)), object_, 3, arguments);
1353 } CYObjectiveCatch }
1354
1355 - (void) removeLastObject { CYObjectiveTry {
1356     JSObjectRef Array(CYGetCachedObject(context, CYJSString("Array_prototype")));
1357     _jsccall(JSObjectCallAsFunction, context, CYCastJSObject(context, CYGetProperty(context, Array, pop_s)), object_, 0, NULL);
1358 } CYObjectiveCatch }
1359
1360 - (void) removeObjectAtIndex:(NSUInteger)index { CYObjectiveTry {
1361     size_t bounds([self count]);
1362     if (index >= bounds)
1363         @throw [NSException exceptionWithName:NSRangeException reason:[NSString stringWithFormat:@"*** -[CYJSArray removeObjectAtIndex:]: index (%zu) beyond bounds (%zu)", static_cast<size_t>(index), bounds] userInfo:nil];
1364     JSValueRef arguments[2];
1365     arguments[0] = CYCastJSValue(context, index);
1366     arguments[1] = CYCastJSValue(context, 1);
1367     JSObjectRef Array(CYGetCachedObject(context, CYJSString("Array_prototype")));
1368     _jsccall(JSObjectCallAsFunction, context, CYCastJSObject(context, CYGetProperty(context, Array, splice_s)), object_, 2, arguments);
1369 } CYObjectiveCatch }
1370
1371 - (void) replaceObjectAtIndex:(NSUInteger)index withObject:(id)object { CYObjectiveTry {
1372     size_t bounds([self count]);
1373     if (index >= bounds)
1374         @throw [NSException exceptionWithName:NSRangeException reason:[NSString stringWithFormat:@"*** -[CYJSArray replaceObjectAtIndex:withObject:]: index (%zu) beyond bounds (%zu)", static_cast<size_t>(index), bounds] userInfo:nil];
1375     CYSetProperty(context, object_, index, CYCastJSValue(context, (NSObject *) object));
1376 } CYObjectiveCatch }
1377
1378 @end
1379
1380 // XXX: inherit from or replace with CYJSObject
1381 @interface CYInternal : NSObject {
1382     JSGlobalContextRef context_;
1383     JSObjectRef object_;
1384 }
1385
1386 @end
1387
1388 @implementation CYInternal
1389
1390 - (void) dealloc { CYObjectiveTry {
1391     JSValueUnprotect(context_, object_);
1392     JSGlobalContextRelease(context_);
1393     [super dealloc];
1394 } CYObjectiveCatch }
1395
1396 - (id) initInContext:(JSContextRef)context { CYObjectiveTry_ {
1397     if ((self = [super init]) != nil) {
1398         context_ = CYGetJSContext(context);
1399         JSGlobalContextRetain(context_);
1400     } return self;
1401 } CYObjectiveCatch }
1402
1403 - (bool) hasProperty:(JSStringRef)name inContext:(JSContextRef)context {
1404     if (object_ == NULL)
1405         return false;
1406
1407     return JSObjectHasProperty(context, object_, name);
1408 }
1409
1410 - (JSValueRef) getProperty:(JSStringRef)name inContext:(JSContextRef)context {
1411     if (object_ == NULL)
1412         return NULL;
1413
1414     return CYGetProperty(context, object_, name);
1415 }
1416
1417 - (void) setProperty:(JSStringRef)name toValue:(JSValueRef)value inContext:(JSContextRef)context {
1418     @synchronized (self) {
1419         if (object_ == NULL) {
1420             object_ = JSObjectMake(context, NULL, NULL);
1421             JSValueProtect(context, object_);
1422         }
1423     }
1424
1425     CYSetProperty(context, object_, name, value);
1426 }
1427
1428 + (CYInternal *) get:(id)object {
1429     if ($objc_getAssociatedObject == NULL)
1430         return nil;
1431
1432     @synchronized (object) {
1433         if (CYInternal *internal = $objc_getAssociatedObject(object, @selector(cy$internal)))
1434             return internal;
1435     }
1436
1437     return nil;
1438 }
1439
1440 + (CYInternal *) set:(id)object inContext:(JSContextRef)context {
1441     if ($objc_getAssociatedObject == NULL)
1442         return nil;
1443
1444     @synchronized (object) {
1445         if (CYInternal *internal = $objc_getAssociatedObject(object, @selector(cy$internal)))
1446             return internal;
1447
1448         if ($objc_setAssociatedObject == NULL)
1449             return nil;
1450
1451         CYInternal *internal([[[CYInternal alloc] initInContext:context] autorelease]);
1452         objc_setAssociatedObject(object, @selector(cy$internal), internal, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
1453         return internal;
1454     }
1455
1456     return nil;
1457 }
1458
1459 @end
1460
1461 static JSObjectRef CYMakeSelector(JSContextRef context, SEL sel) {
1462     Selector_privateData *internal(new Selector_privateData(sel));
1463     return JSObjectMake(context, Selector_, internal);
1464 }
1465
1466 static SEL CYCastSEL(JSContextRef context, JSValueRef value) {
1467     if (JSValueIsObjectOfClass(context, value, Selector_)) {
1468         Selector_privateData *internal(reinterpret_cast<Selector_privateData *>(JSObjectGetPrivate((JSObjectRef) value)));
1469         return reinterpret_cast<SEL>(internal->value_);
1470     } else
1471         return CYCastPointer<SEL>(context, value);
1472 }
1473
1474 void *CYObjectiveC_ExecuteStart(JSContextRef context) { CYSadTry {
1475     return (void *) [[NSAutoreleasePool alloc] init];
1476 } CYSadCatch(NULL) }
1477
1478 void CYObjectiveC_ExecuteEnd(JSContextRef context, void *handle) { CYSadTry {
1479     return [(NSAutoreleasePool *) handle release];
1480 } CYSadCatch() }
1481
1482 JSValueRef CYObjectiveC_RuntimeProperty(JSContextRef context, CYUTF8String name) { CYPoolTry {
1483     if (name == "nil")
1484         return Instance::Make(context, nil);
1485     if (Class _class = objc_getClass(name.data))
1486         return CYMakeInstance(context, _class, true);
1487     if (Protocol *protocol = objc_getProtocol(name.data))
1488         return CYMakeInstance(context, protocol, true);
1489     return NULL;
1490 } CYPoolCatch(NULL) return /*XXX*/ NULL; }
1491
1492 static void CYObjectiveC_CallFunction(JSContextRef context, ffi_cif *cif, void (*function)(), uint8_t *value, void **values) { CYSadTry {
1493     ffi_call(cif, function, value, values);
1494 } CYSadCatch() }
1495
1496 static bool CYObjectiveC_PoolFFI(CYPool *pool, JSContextRef context, sig::Type *type, ffi_type *ffi, void *data, JSValueRef value) { CYSadTry {
1497     // XXX: assigning to an indirect id * works for return values, but not for properties and fields
1498
1499     switch (type->primitive) {
1500         case sig::block_P: {
1501             _assert(type->data.signature.count != 0);
1502             sig::Signature signature;
1503             sig::Copy(*pool, signature, type->data.signature);
1504
1505             sig::Element *elements(new(*pool) sig::Element[++signature.count]);
1506             elements[0] = signature.elements[0];
1507             memcpy(elements + 2, signature.elements + 1, sizeof(sig::Element) * (signature.count - 2));
1508             signature.elements = elements;
1509
1510             elements[1].name = NULL;
1511             elements[1].type = new(*pool) sig::Type();
1512             elements[1].offset = _not(size_t);
1513
1514             memset(elements[1].type, 0, sizeof(sig::Type));
1515             elements[1].type->primitive = sig::object_P;
1516
1517             JSObjectRef function(CYCastJSObject(context, value));
1518             *reinterpret_cast<id *>(data) = CYMakeBlock(context, function, signature);
1519         } break;
1520
1521         case sig::object_P:
1522         case sig::typename_P:
1523             *reinterpret_cast<id *>(data) = CYCastNSObject(pool, context, value);
1524         break;
1525
1526         case sig::selector_P:
1527             *reinterpret_cast<SEL *>(data) = CYCastSEL(context, value);
1528         break;
1529
1530         default:
1531             return false;
1532     }
1533
1534     return true;
1535 } CYSadCatch(false) }
1536
1537 static JSValueRef CYObjectiveC_FromFFI(JSContextRef context, sig::Type *type, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) { CYPoolTry {
1538     switch (type->primitive) {
1539         // XXX: do something epic about blocks
1540         case sig::block_P:
1541         case sig::object_P:
1542             if (NSObject *object = *reinterpret_cast<NSObject **>(data)) {
1543                 JSValueRef value(CYCastJSValue(context, object));
1544                 if (initialize)
1545                     [object release];
1546                 return value;
1547             } else goto null;
1548
1549         case sig::typename_P:
1550             return CYMakeInstance(context, *reinterpret_cast<Class *>(data), true);
1551
1552         case sig::selector_P:
1553             if (SEL sel = *reinterpret_cast<SEL *>(data))
1554                 return CYMakeSelector(context, sel);
1555             else goto null;
1556
1557         null:
1558             return CYJSNull(context);
1559         default:
1560             return NULL;
1561     }
1562 } CYPoolCatch(NULL) return /*XXX*/ NULL; }
1563
1564 static bool CYImplements(id object, Class _class, SEL selector, bool devoid = false) {
1565     if (objc_method *method = class_getInstanceMethod(_class, selector)) {
1566         if (!devoid)
1567             return true;
1568 #if OBJC_API_VERSION >= 2
1569         char type[16];
1570         method_getReturnType(method, type, sizeof(type));
1571 #else
1572         const char *type(method_getTypeEncoding(method));
1573 #endif
1574         if (type[0] != 'v')
1575             return true;
1576     }
1577
1578     // XXX: possibly use a more "awesome" check?
1579     return false;
1580 }
1581
1582 static const char *CYPoolTypeEncoding(CYPool &pool, JSContextRef context, SEL sel, objc_method *method) {
1583     if (method != NULL)
1584         return method_getTypeEncoding(method);
1585
1586     const char *name(sel_getName(sel));
1587     size_t length(strlen(name));
1588
1589     char keyed[length + 2];
1590     keyed[0] = '6';
1591     keyed[length + 1] = '\0';
1592     memcpy(keyed + 1, name, length);
1593
1594     if (CYBridgeEntry *entry = CYBridgeHash(keyed, length + 1))
1595         return entry->value_;
1596
1597     return NULL;
1598 }
1599
1600 static JSValueRef MessageAdapter_(JSContextRef context, size_t count, JSValueRef values[], JSObjectRef function) {
1601     JSObjectRef _this(CYCastJSObject(context, values[0]));
1602     return CYCallAsFunction(context, function, _this, count - 2, values + 2);
1603 }
1604
1605 static void MessageClosure_(ffi_cif *cif, void *result, void **arguments, void *arg) {
1606     CYExecuteClosure(cif, result, arguments, arg, &MessageAdapter_);
1607 }
1608
1609 static JSObjectRef CYMakeMessage(JSContextRef context, SEL sel, IMP imp, const char *type) {
1610     Message_privateData *internal(new Message_privateData(sel, type, imp));
1611     return JSObjectMake(context, Message_, internal);
1612 }
1613
1614 static IMP CYMakeMessage(JSContextRef context, JSValueRef value, const char *encoding) {
1615     JSObjectRef function(CYCastJSObject(context, value));
1616     CYPool pool;
1617     sig::Signature signature;
1618     sig::Parse(pool, &signature, encoding, &Structor_);
1619     Closure_privateData *internal(CYMakeFunctor_(context, function, signature, &MessageClosure_));
1620     // XXX: see notes in Library.cpp about needing to leak
1621     return reinterpret_cast<IMP>(internal->GetValue());
1622 }
1623
1624 static bool Messages_hasProperty(JSContextRef context, JSObjectRef object, JSStringRef property) {
1625     Messages *internal(reinterpret_cast<Messages *>(JSObjectGetPrivate(object)));
1626     Class _class(internal->GetValue());
1627
1628     CYPool pool;
1629     const char *name(CYPoolCString(pool, context, property));
1630
1631     if (SEL sel = sel_getUid(name))
1632         if (class_getInstanceMethod(_class, sel) != NULL)
1633             return true;
1634
1635     return false;
1636 }
1637
1638 static JSValueRef Messages_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1639     Messages *internal(reinterpret_cast<Messages *>(JSObjectGetPrivate(object)));
1640     Class _class(internal->GetValue());
1641
1642     CYPool pool;
1643     const char *name(CYPoolCString(pool, context, property));
1644
1645     if (SEL sel = sel_getUid(name))
1646         if (objc_method *method = class_getInstanceMethod(_class, sel))
1647             return CYMakeMessage(context, sel, method_getImplementation(method), method_getTypeEncoding(method));
1648
1649     return NULL;
1650 } CYCatch(NULL) }
1651
1652 static bool Messages_setProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef value, JSValueRef *exception) { CYTry {
1653     Messages *internal(reinterpret_cast<Messages *>(JSObjectGetPrivate(object)));
1654     Class _class(internal->GetValue());
1655
1656     CYPool pool;
1657     const char *name(CYPoolCString(pool, context, property));
1658     SEL sel(sel_registerName(name));
1659
1660     const char *type;
1661     IMP imp;
1662
1663     if (JSValueIsObjectOfClass(context, value, Message_)) {
1664         Message_privateData *message(reinterpret_cast<Message_privateData *>(JSObjectGetPrivate((JSObjectRef) value)));
1665         type = sig::Unparse(pool, &message->signature_);
1666         imp = reinterpret_cast<IMP>(message->GetValue());
1667     } else {
1668         objc_method *method(class_getInstanceMethod(_class, sel));
1669         type = CYPoolTypeEncoding(pool, context, sel, method);
1670         imp = CYMakeMessage(context, value, type);
1671     }
1672
1673     objc_method *method(NULL);
1674 #if OBJC_API_VERSION >= 2
1675     unsigned int size;
1676     objc_method **methods(class_copyMethodList(_class, &size));
1677     for (size_t i(0); i != size; ++i)
1678         if (sel_isEqual(method_getName(methods[i]), sel)) {
1679             method = methods[i];
1680             break;
1681         }
1682     free(methods);
1683 #else
1684     for (objc_method_list *methods(_class->methods); methods != NULL; methods = methods->method_next)
1685         for (int i(0); i != methods->method_count; ++i)
1686             if (sel_isEqual(method_getName(&methods->method_list[i]), sel)) {
1687                 method = &methods->method_list[i];
1688                 break;
1689             }
1690 #endif
1691
1692     if (method != NULL)
1693         method_setImplementation(method, imp);
1694     else {
1695 #ifdef GNU_RUNTIME
1696         GSMethodList list(GSAllocMethodList(1));
1697         GSAppendMethodToList(list, sel, type, imp, YES);
1698         GSAddMethodList(_class, list, YES);
1699         GSFlushMethodCacheForClass(_class);
1700 #else
1701         class_addMethod(_class, sel, imp, type);
1702 #endif
1703     }
1704
1705     return true;
1706 } CYCatch(false) }
1707
1708 #if 0 && OBJC_API_VERSION < 2
1709 static bool Messages_deleteProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1710     Messages *internal(reinterpret_cast<Messages *>(JSObjectGetPrivate(object)));
1711     Class _class(internal->GetValue());
1712
1713     CYPool pool;
1714     const char *name(CYPoolCString(pool, context, property));
1715
1716     if (SEL sel = sel_getUid(name))
1717         if (objc_method *method = class_getInstanceMethod(_class, sel)) {
1718             objc_method_list list = {NULL, 1, {method}};
1719             class_removeMethods(_class, &list);
1720             return true;
1721         }
1722
1723     return false;
1724 } CYCatch(false) }
1725 #endif
1726
1727 static void Messages_getPropertyNames(JSContextRef context, JSObjectRef object, JSPropertyNameAccumulatorRef names) {
1728     Messages *internal(reinterpret_cast<Messages *>(JSObjectGetPrivate(object)));
1729     Class _class(internal->GetValue());
1730
1731 #if OBJC_API_VERSION >= 2
1732     unsigned int size;
1733     objc_method **data(class_copyMethodList(_class, &size));
1734     for (size_t i(0); i != size; ++i)
1735         JSPropertyNameAccumulatorAddName(names, CYJSString(sel_getName(method_getName(data[i]))));
1736     free(data);
1737 #else
1738     for (objc_method_list *methods(_class->methods); methods != NULL; methods = methods->method_next)
1739         for (int i(0); i != methods->method_count; ++i)
1740             JSPropertyNameAccumulatorAddName(names, CYJSString(sel_getName(method_getName(&methods->method_list[i]))));
1741 #endif
1742 }
1743
1744 static bool CYHasImplicitProperties(Class _class) {
1745     // XXX: this is an evil hack to deal with NSProxy; fix elsewhere
1746     if (!CYImplements(_class, object_getClass(_class), @selector(cy$hasImplicitProperties)))
1747         return true;
1748     return [_class cy$hasImplicitProperties];
1749 }
1750
1751 static bool Instance_hasProperty(JSContextRef context, JSObjectRef object, JSStringRef property) {
1752     Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(object)));
1753     id self(internal->GetValue());
1754
1755     if (JSStringIsEqualToUTF8CString(property, "$cyi"))
1756         return true;
1757
1758     CYPool pool;
1759     NSString *name(CYCastNSString(&pool, context, property));
1760
1761     if (CYInternal *internal = [CYInternal get:self])
1762         if ([internal hasProperty:property inContext:context])
1763             return true;
1764
1765     Class _class(object_getClass(self));
1766
1767     CYPoolTry {
1768         // XXX: this is an evil hack to deal with NSProxy; fix elsewhere
1769         if (CYImplements(self, _class, @selector(cy$hasProperty:)))
1770             if ([self cy$hasProperty:name])
1771                 return true;
1772     } CYPoolCatch(false)
1773
1774     const char *string(CYPoolCString(pool, context, name));
1775
1776 #ifdef __APPLE__
1777     if (class_getProperty(_class, string) != NULL)
1778         return true;
1779 #endif
1780
1781     if (CYHasImplicitProperties(_class))
1782         if (SEL sel = sel_getUid(string))
1783             if (CYImplements(self, _class, sel, true))
1784                 return true;
1785
1786     return false;
1787 }
1788
1789 static JSValueRef Instance_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1790     Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(object)));
1791     id self(internal->GetValue());
1792
1793     if (JSStringIsEqualToUTF8CString(property, "$cyi"))
1794         return Internal::Make(context, self, object);
1795
1796     CYPool pool;
1797     NSString *name(CYCastNSString(&pool, context, property));
1798
1799     if (CYInternal *internal = [CYInternal get:self])
1800         if (JSValueRef value = [internal getProperty:property inContext:context])
1801             return value;
1802
1803     CYPoolTry {
1804         if (JSValueRef value = [self cy$getProperty:name inContext:context])
1805             return value;
1806     } CYPoolCatch(NULL)
1807
1808     const char *string(CYPoolCString(pool, context, name));
1809     Class _class(object_getClass(self));
1810
1811 #ifdef __APPLE__
1812     if (objc_property_t property = class_getProperty(_class, string)) {
1813         PropertyAttributes attributes(property);
1814         SEL sel(sel_registerName(attributes.Getter()));
1815         return CYSendMessage(pool, context, self, NULL, sel, 0, NULL, false);
1816     }
1817 #endif
1818
1819     if (CYHasImplicitProperties(_class))
1820         if (SEL sel = sel_getUid(string))
1821             if (CYImplements(self, _class, sel, true))
1822                 return CYSendMessage(pool, context, self, NULL, sel, 0, NULL, false);
1823
1824     return NULL;
1825 } CYCatch(NULL) }
1826
1827 static bool Instance_setProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef value, JSValueRef *exception) { CYTry {
1828     Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(object)));
1829     id self(internal->GetValue());
1830
1831     CYPool pool;
1832
1833     NSString *name(CYCastNSString(&pool, context, property));
1834     NSObject *data(CYCastNSObject(&pool, context, value));
1835
1836     CYPoolTry {
1837         if ([self cy$setProperty:name to:data])
1838             return true;
1839     } CYPoolCatch(false)
1840
1841     const char *string(CYPoolCString(pool, context, name));
1842     Class _class(object_getClass(self));
1843
1844 #ifdef __APPLE__
1845     if (objc_property_t property = class_getProperty(_class, string)) {
1846         PropertyAttributes attributes(property);
1847         if (const char *setter = attributes.Setter()) {
1848             SEL sel(sel_registerName(setter));
1849             JSValueRef arguments[1] = {value};
1850             CYSendMessage(pool, context, self, NULL, sel, 1, arguments, false);
1851             return true;
1852         }
1853     }
1854 #endif
1855
1856     size_t length(strlen(string));
1857
1858     char set[length + 5];
1859
1860     set[0] = 's';
1861     set[1] = 'e';
1862     set[2] = 't';
1863
1864     if (string[0] != '\0') {
1865         set[3] = toupper(string[0]);
1866         memcpy(set + 4, string + 1, length - 1);
1867     }
1868
1869     set[length + 3] = ':';
1870     set[length + 4] = '\0';
1871
1872     if (SEL sel = sel_getUid(set))
1873         if (CYImplements(self, _class, sel)) {
1874             JSValueRef arguments[1] = {value};
1875             CYSendMessage(pool, context, self, NULL, sel, 1, arguments, false);
1876             return true;
1877         }
1878
1879     if (CYInternal *internal = [CYInternal set:self inContext:context]) {
1880         [internal setProperty:property toValue:value inContext:context];
1881         return true;
1882     }
1883
1884     return false;
1885 } CYCatch(false) }
1886
1887 static bool Instance_deleteProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1888     Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(object)));
1889     id self(internal->GetValue());
1890
1891     CYPoolTry {
1892         NSString *name(CYCastNSString(NULL, context, property));
1893         return [self cy$deleteProperty:name];
1894     } CYPoolCatch(false)
1895 } CYCatch(false) return /*XXX*/ false; }
1896
1897 static void Instance_getPropertyNames_message(JSPropertyNameAccumulatorRef names, objc_method *method) {
1898     const char *name(sel_getName(method_getName(method)));
1899     if (strchr(name, ':') != NULL)
1900         return;
1901
1902     const char *type(method_getTypeEncoding(method));
1903     if (type == NULL || *type == '\0' || *type == 'v')
1904         return;
1905
1906     JSPropertyNameAccumulatorAddName(names, CYJSString(name));
1907 }
1908
1909 static void Instance_getPropertyNames(JSContextRef context, JSObjectRef object, JSPropertyNameAccumulatorRef names) {
1910     Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(object)));
1911     id self(internal->GetValue());
1912
1913     CYPool pool;
1914     Class _class(object_getClass(self));
1915
1916 #ifdef __APPLE__
1917     {
1918         unsigned int size;
1919         objc_property_t *data(class_copyPropertyList(_class, &size));
1920         for (size_t i(0); i != size; ++i)
1921             JSPropertyNameAccumulatorAddName(names, CYJSString(property_getName(data[i])));
1922         free(data);
1923     }
1924 #endif
1925
1926     if (CYHasImplicitProperties(_class))
1927         for (Class current(_class); current != nil; current = class_getSuperclass(current)) {
1928 #if OBJC_API_VERSION >= 2
1929             unsigned int size;
1930             objc_method **data(class_copyMethodList(current, &size));
1931             for (size_t i(0); i != size; ++i)
1932                 Instance_getPropertyNames_message(names, data[i]);
1933             free(data);
1934 #else
1935             for (objc_method_list *methods(current->methods); methods != NULL; methods = methods->method_next)
1936                 for (int i(0); i != methods->method_count; ++i)
1937                     Instance_getPropertyNames_message(names, &methods->method_list[i]);
1938 #endif
1939         }
1940
1941     CYPoolTry {
1942         // XXX: this is an evil hack to deal with NSProxy; fix elsewhere
1943         if (CYImplements(self, _class, @selector(cy$getPropertyNames:inContext:)))
1944             [self cy$getPropertyNames:names inContext:context];
1945     } CYPoolCatch()
1946 }
1947
1948 static JSObjectRef Instance_callAsConstructor(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1949     Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(object)));
1950     JSObjectRef value(Instance::Make(context, [internal->GetValue() alloc], Instance::Uninitialized));
1951     return value;
1952 } CYCatch(NULL) }
1953
1954 static const char *CYBlockEncoding(NSBlock *self) {
1955     BlockLiteral *literal(reinterpret_cast<BlockLiteral *>(self));
1956     if ((literal->flags & BLOCK_HAS_SIGNATURE) == 0)
1957         return NULL;
1958     uint8_t *descriptor(reinterpret_cast<uint8_t *>(literal->descriptor));
1959     descriptor += sizeof(BlockDescriptor1);
1960     if ((literal->flags & BLOCK_HAS_COPY_DISPOSE) != 0)
1961         descriptor += sizeof(BlockDescriptor2);
1962     BlockDescriptor3 *descriptor3(reinterpret_cast<BlockDescriptor3 *>(descriptor));
1963     return descriptor3->signature;
1964 }
1965
1966 static JSValueRef FunctionInstance_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1967     Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(object)));
1968     id self(internal->GetValue());
1969
1970     if (const char *encoding = CYBlockEncoding(self)) {
1971         CYPool pool;
1972
1973         void *setup[1];
1974         setup[0] = &self;
1975
1976         sig::Signature signature;
1977         sig::Parse(pool, &signature, encoding, &Structor_);
1978
1979         ffi_cif cif;
1980         sig::sig_ffi_cif(pool, &sig::ObjectiveC, &signature, &cif);
1981
1982         BlockLiteral *literal(reinterpret_cast<BlockLiteral *>(self));
1983         void (*function)() = reinterpret_cast<void (*)()>(literal->invoke);
1984         return CYCallFunction(pool, context, 1, setup, count, arguments, false, &signature, &cif, function);
1985     }
1986
1987     if (count != 0)
1988         CYThrow("NSBlock without signature field passed arguments");
1989
1990     CYPoolTry {
1991         [self invoke];
1992     } CYPoolCatch(NULL);
1993
1994     return NULL;
1995 } CYCatch(NULL) }
1996
1997 static bool Instance_hasInstance(JSContextRef context, JSObjectRef constructor, JSValueRef instance, JSValueRef *exception) { CYTry {
1998     Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate((JSObjectRef) constructor)));
1999     Class _class(internal->GetValue());
2000     if (!CYIsClass(_class))
2001         return false;
2002
2003     if (CYJSValueIsNSObject(context, instance)) {
2004         Instance *linternal(reinterpret_cast<Instance *>(JSObjectGetPrivate((JSObjectRef) instance)));
2005         // XXX: this isn't always safe
2006         return [linternal->GetValue() isKindOfClass:_class];
2007     }
2008
2009     return false;
2010 } CYCatch(false) }
2011
2012 static JSValueRef Instance_box_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
2013     if (count == 0)
2014         throw CYJSError(context, "incorrect number of arguments to Instance");
2015     CYPool pool;
2016     id value(CYCastNSObject(&pool, context, arguments[0]));
2017     if (value == nil)
2018         value = [NSNull null];
2019     return CYCastJSValue(context, [value cy$box]);
2020 } CYCatch(NULL) }
2021
2022 static bool Internal_hasProperty(JSContextRef context, JSObjectRef object, JSStringRef property) {
2023     Internal *internal(reinterpret_cast<Internal *>(JSObjectGetPrivate(object)));
2024     CYPool pool;
2025
2026     id self(internal->GetValue());
2027     const char *name(CYPoolCString(pool, context, property));
2028
2029     if (object_getInstanceVariable(self, name, NULL) != NULL)
2030         return true;
2031
2032     return false;
2033 }
2034
2035 static void CYBitField(unsigned &length, unsigned &shift, id self, Ivar ivar, const char *encoding, unsigned offset) {
2036     length = CYCastDouble(encoding + 1);
2037     shift = 0;
2038
2039     unsigned int size;
2040     objc_ivar **ivars(class_copyIvarList(object_getClass(self), &size));
2041     for (size_t i(0); i != size; ++i)
2042         if (ivars[i] == ivar)
2043             break;
2044         else if (ivar_getOffset(ivars[i]) == offset) {
2045             const char *encoding(ivar_getTypeEncoding(ivars[i]));
2046             _assert(encoding[0] == 'b');
2047             shift += CYCastDouble(encoding + 1);
2048         }
2049     free(ivars);
2050 }
2051
2052 static JSValueRef Internal_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
2053     Internal *internal(reinterpret_cast<Internal *>(JSObjectGetPrivate(object)));
2054     CYPool pool;
2055
2056     id self(internal->GetValue());
2057     const char *name(CYPoolCString(pool, context, property));
2058
2059 #ifdef __arm64__
2060     if (strcmp(name, "isa") == 0)
2061         return CYCastJSValue(context, object_getClass(self));
2062 #endif
2063
2064     if (objc_ivar *ivar = object_getInstanceVariable(self, name, NULL)) {
2065         ptrdiff_t offset(ivar_getOffset(ivar));
2066         void *data(reinterpret_cast<uint8_t *>(self) + offset);
2067
2068         const char *encoding(ivar_getTypeEncoding(ivar));
2069         if (encoding[0] == 'b') {
2070             unsigned length, shift;
2071             CYBitField(length, shift, self, ivar, encoding, offset);
2072             _assert(shift + length <= sizeof(uintptr_t) * 8);
2073             uintptr_t &field(*reinterpret_cast<uintptr_t *>(data));
2074             uintptr_t mask((1 << length) - 1);
2075             return CYCastJSValue(context, (field >> shift) & mask);
2076         } else {
2077             Type_privateData type(pool, ivar_getTypeEncoding(ivar));
2078             return CYFromFFI(context, type.type_, type.GetFFI(), data);
2079         }
2080     }
2081
2082     return NULL;
2083 } CYCatch(NULL) }
2084
2085 static bool Internal_setProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef value, JSValueRef *exception) { CYTry {
2086     Internal *internal(reinterpret_cast<Internal *>(JSObjectGetPrivate(object)));
2087     CYPool pool;
2088
2089     id self(internal->GetValue());
2090     const char *name(CYPoolCString(pool, context, property));
2091
2092     if (objc_ivar *ivar = object_getInstanceVariable(self, name, NULL)) {
2093         ptrdiff_t offset(ivar_getOffset(ivar));
2094         void *data(reinterpret_cast<uint8_t *>(self) + offset);
2095
2096         const char *encoding(ivar_getTypeEncoding(ivar));
2097         if (encoding[0] == 'b') {
2098             unsigned length, shift;
2099             CYBitField(length, shift, self, ivar, encoding, offset);
2100             _assert(shift + length <= sizeof(uintptr_t) * 8);
2101             uintptr_t &field(*reinterpret_cast<uintptr_t *>(data));
2102             uintptr_t mask((1 << length) - 1);
2103             field = field & ~(mask << shift) | (uintptr_t(CYCastDouble(context, value)) & mask) << shift;
2104         } else {
2105             Type_privateData type(pool, ivar_getTypeEncoding(ivar));
2106             CYPoolFFI(&pool, context, type.type_, type.GetFFI(), reinterpret_cast<uint8_t *>(self) + ivar_getOffset(ivar), value);
2107             return true;
2108         }
2109     }
2110
2111     return false;
2112 } CYCatch(false) }
2113
2114 static void Internal_getPropertyNames_(Class _class, JSPropertyNameAccumulatorRef names) {
2115     if (Class super = class_getSuperclass(_class))
2116         Internal_getPropertyNames_(super, names);
2117
2118 #if OBJC_API_VERSION >= 2
2119     unsigned int size;
2120     objc_ivar **data(class_copyIvarList(_class, &size));
2121     for (size_t i(0); i != size; ++i)
2122         JSPropertyNameAccumulatorAddName(names, CYJSString(ivar_getName(data[i])));
2123     free(data);
2124 #else
2125     if (objc_ivar_list *ivars = _class->ivars)
2126         for (int i(0); i != ivars->ivar_count; ++i)
2127             JSPropertyNameAccumulatorAddName(names, CYJSString(ivar_getName(&ivars->ivar_list[i])));
2128 #endif
2129 }
2130
2131 static void Internal_getPropertyNames(JSContextRef context, JSObjectRef object, JSPropertyNameAccumulatorRef names) {
2132     Internal *internal(reinterpret_cast<Internal *>(JSObjectGetPrivate(object)));
2133     CYPool pool;
2134
2135     id self(internal->GetValue());
2136     Class _class(object_getClass(self));
2137
2138     Internal_getPropertyNames_(_class, names);
2139 }
2140
2141 static JSValueRef Internal_callAsFunction_$cya(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
2142     Internal *internal(reinterpret_cast<Internal *>(JSObjectGetPrivate(object)));
2143     return internal->GetOwner();
2144 } CYCatch(NULL) }
2145
2146 static JSValueRef ObjectiveC_Classes_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
2147     CYPool pool;
2148     NSString *name(CYCastNSString(&pool, context, property));
2149     if (Class _class = NSClassFromString(name))
2150         return CYMakeInstance(context, _class, true);
2151     return NULL;
2152 } CYCatch(NULL) }
2153
2154 #ifdef __APPLE__
2155 static Class *CYCopyClassList(size_t &size) {
2156     size = objc_getClassList(NULL, 0);
2157     Class *data(reinterpret_cast<Class *>(malloc(sizeof(Class) * size)));
2158
2159     for (;;) {
2160         size_t writ(objc_getClassList(data, size));
2161         if (writ <= size) {
2162             size = writ;
2163             return data;
2164         }
2165
2166         Class *copy(reinterpret_cast<Class *>(realloc(data, sizeof(Class) * writ)));
2167         if (copy == NULL) {
2168             free(data);
2169             return NULL;
2170         }
2171
2172         data = copy;
2173         size = writ;
2174     }
2175 }
2176 #endif
2177
2178 static void ObjectiveC_Classes_getPropertyNames(JSContextRef context, JSObjectRef object, JSPropertyNameAccumulatorRef names) {
2179 #ifdef __APPLE__
2180     size_t size;
2181     if (Class *data = CYCopyClassList(size)) {
2182         for (size_t i(0); i != size; ++i)
2183             JSPropertyNameAccumulatorAddName(names, CYJSString(class_getName(data[i])));
2184         free(data);
2185     }
2186 #else
2187     void *state(NULL);
2188     while (Class _class = objc_next_class(&state))
2189         JSPropertyNameAccumulatorAddName(names, CYJSString(class_getName(_class)));
2190 #endif
2191 }
2192
2193 #if OBJC_API_VERSION >= 2
2194 static JSValueRef ObjectiveC_Image_Classes_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
2195     const char *internal(reinterpret_cast<const char *>(JSObjectGetPrivate(object)));
2196
2197     CYPool pool;
2198     const char *name(CYPoolCString(pool, context, property));
2199     unsigned int size;
2200     const char **data(objc_copyClassNamesForImage(internal, &size));
2201     JSValueRef value;
2202     for (size_t i(0); i != size; ++i)
2203         if (strcmp(name, data[i]) == 0) {
2204             if (Class _class = objc_getClass(name)) {
2205                 value = CYMakeInstance(context, _class, true);
2206                 goto free;
2207             } else
2208                 break;
2209         }
2210     value = NULL;
2211   free:
2212     free(data);
2213     return value;
2214 } CYCatch(NULL) }
2215
2216 static void ObjectiveC_Image_Classes_getPropertyNames(JSContextRef context, JSObjectRef object, JSPropertyNameAccumulatorRef names) {
2217     const char *internal(reinterpret_cast<const char *>(JSObjectGetPrivate(object)));
2218     unsigned int size;
2219     const char **data(objc_copyClassNamesForImage(internal, &size));
2220     for (size_t i(0); i != size; ++i)
2221         JSPropertyNameAccumulatorAddName(names, CYJSString(data[i]));
2222     free(data);
2223 }
2224
2225 static JSValueRef ObjectiveC_Images_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
2226     CYPool pool;
2227     const char *name(CYPoolCString(pool, context, property));
2228     unsigned int size;
2229     const char **data(objc_copyImageNames(&size));
2230     for (size_t i(0); i != size; ++i)
2231         if (strcmp(name, data[i]) == 0) {
2232             name = data[i];
2233             goto free;
2234         }
2235     name = NULL;
2236   free:
2237     free(data);
2238     if (name == NULL)
2239         return NULL;
2240     JSObjectRef value(JSObjectMake(context, NULL, NULL));
2241     CYSetProperty(context, value, CYJSString("classes"), JSObjectMake(context, ObjectiveC_Image_Classes_, const_cast<char *>(name)));
2242     return value;
2243 } CYCatch(NULL) }
2244
2245 static void ObjectiveC_Images_getPropertyNames(JSContextRef context, JSObjectRef object, JSPropertyNameAccumulatorRef names) {
2246     unsigned int size;
2247     const char **data(objc_copyImageNames(&size));
2248     for (size_t i(0); i != size; ++i)
2249         JSPropertyNameAccumulatorAddName(names, CYJSString(data[i]));
2250     free(data);
2251 }
2252 #endif
2253
2254 static JSValueRef ObjectiveC_Protocols_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
2255     CYPool pool;
2256     const char *name(CYPoolCString(pool, context, property));
2257     if (Protocol *protocol = objc_getProtocol(name))
2258         return CYMakeInstance(context, protocol, true);
2259     return NULL;
2260 } CYCatch(NULL) }
2261
2262 static void ObjectiveC_Protocols_getPropertyNames(JSContextRef context, JSObjectRef object, JSPropertyNameAccumulatorRef names) {
2263 #if OBJC_API_VERSION >= 2
2264     unsigned int size;
2265     Protocol **data(objc_copyProtocolList(&size));
2266     for (size_t i(0); i != size; ++i)
2267         JSPropertyNameAccumulatorAddName(names, CYJSString(protocol_getName(data[i])));
2268     free(data);
2269 #else
2270     // XXX: fix this!
2271 #endif
2272 }
2273
2274 static JSValueRef ObjectiveC_Constants_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
2275     CYPool pool;
2276     CYUTF8String name(CYPoolUTF8String(pool, context, property));
2277     if (name == "nil")
2278         return Instance::Make(context, nil);
2279     return NULL;
2280 } CYCatch(NULL) }
2281
2282 static void ObjectiveC_Constants_getPropertyNames(JSContextRef context, JSObjectRef object, JSPropertyNameAccumulatorRef names) {
2283     JSPropertyNameAccumulatorAddName(names, CYJSString("nil"));
2284 }
2285
2286 #ifdef __APPLE__
2287 static kern_return_t CYReadMemory(task_t task, vm_address_t address, vm_size_t size, void **data) {
2288     *data = reinterpret_cast<void *>(address);
2289     return KERN_SUCCESS;
2290 }
2291
2292 struct CYChoice {
2293     std::set<Class> query_;
2294     JSContextRef context_;
2295     JSObjectRef results_;
2296 };
2297
2298 struct CYObjectStruct {
2299     Class isa_;
2300 };
2301
2302 static void choose_(task_t task, void *baton, unsigned type, vm_range_t *ranges, unsigned count) {
2303     CYChoice *choice(reinterpret_cast<CYChoice *>(baton));
2304     JSContextRef context(choice->context_);
2305
2306     for (unsigned i(0); i != count; ++i) {
2307         vm_range_t &range(ranges[i]);
2308         void *data(reinterpret_cast<void *>(range.address));
2309         size_t size(range.size);
2310
2311         if (size < sizeof(CYObjectStruct))
2312             continue;
2313
2314         uintptr_t *pointers(reinterpret_cast<uintptr_t *>(data));
2315 #ifdef __arm64__
2316         Class isa(reinterpret_cast<Class>(pointers[0] & 0x1fffffff8));
2317 #else
2318         Class isa(reinterpret_cast<Class>(pointers[0]));
2319 #endif
2320
2321         std::set<Class>::const_iterator result(choice->query_.find(isa));
2322         if (result == choice->query_.end())
2323             continue;
2324
2325         size_t needed(class_getInstanceSize(*result));
2326         // XXX: if (size < needed)
2327         if (needed <= 496 && (needed + 15) / 16 * 16 != size || needed > 496 && (needed + 511) / 512 * 512 != size)
2328             continue;
2329         CYArrayPush(context, choice->results_, CYCastJSValue(context, reinterpret_cast<id>(data)));
2330     }
2331 }
2332
2333 static JSValueRef choose(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
2334     if (count != 1)
2335         throw CYJSError(context, "choose() takes a class argument");
2336
2337     CYGarbageCollect(context);
2338
2339     CYPool pool;
2340     Class _class(CYCastNSObject(&pool, context, arguments[0]));
2341
2342     vm_address_t *zones(NULL);
2343     unsigned size(0);
2344     kern_return_t error(malloc_get_all_zones(0, &CYReadMemory, &zones, &size));
2345     _assert(error == KERN_SUCCESS);
2346
2347     JSObjectRef Array(CYGetCachedObject(context, CYJSString("Array")));
2348     JSObjectRef results(_jsccall(JSObjectCallAsConstructor, context, Array, 0, NULL));
2349
2350     CYChoice choice;
2351     choice.context_ = context;
2352     choice.results_ = results;
2353
2354     size_t number;
2355     Class *classes(CYCopyClassList(number));
2356     _assert(classes != NULL);
2357
2358     for (size_t i(0); i != number; ++i)
2359         for (Class current(classes[i]); current != Nil; current = class_getSuperclass(current))
2360             if (current == _class) {
2361                 choice.query_.insert(classes[i]);
2362                 break;
2363             }
2364
2365     free(classes);
2366
2367     for (unsigned i(0); i != size; ++i) {
2368         const malloc_zone_t *zone(reinterpret_cast<const malloc_zone_t *>(zones[i]));
2369         if (zone == NULL || zone->introspect == NULL)
2370             continue;
2371
2372         zone->introspect->enumerator(mach_task_self(), &choice, MALLOC_PTR_IN_USE_RANGE_TYPE, zones[i], &CYReadMemory, &choose_);
2373     }
2374
2375     return results;
2376 } CYCatch(NULL) }
2377 #endif
2378
2379 #ifdef __APPLE__
2380 #if defined(__i386__) || defined(__x86_64__)
2381 #define OBJC_MAX_STRUCT_BY_VALUE 8
2382 static int struct_forward_array[] = {
2383     0, 0, 0, 1, 0, 1, 1, 1, 0 };
2384 #elif defined(__arm__)
2385 #define OBJC_MAX_STRUCT_BY_VALUE 1
2386 static int struct_forward_array[] = {
2387     0, 0 };
2388 #elif defined(__arm64__)
2389 #define CY_NO_STRET
2390 #else
2391 #error missing objc-runtime-info
2392 #endif
2393
2394 #ifndef CY_NO_STRET
2395 static bool stret(ffi_type *ffi_type) {
2396     return ffi_type->type == FFI_TYPE_STRUCT && (
2397         ffi_type->size > OBJC_MAX_STRUCT_BY_VALUE ||
2398         struct_forward_array[ffi_type->size] != 0
2399     );
2400 }
2401 #endif
2402 #endif
2403
2404 JSValueRef CYSendMessage(CYPool &pool, JSContextRef context, id self, Class _class, SEL _cmd, size_t count, const JSValueRef arguments[], bool initialize) {
2405     const char *type;
2406
2407     if (_class == NULL)
2408         _class = object_getClass(self);
2409
2410     IMP imp;
2411
2412     if (objc_method *method = class_getInstanceMethod(_class, _cmd)) {
2413         imp = method_getImplementation(method);
2414         type = method_getTypeEncoding(method);
2415     } else {
2416         imp = NULL;
2417
2418         CYPoolTry {
2419             NSMethodSignature *method([self methodSignatureForSelector:_cmd]);
2420             if (method == nil)
2421                 throw CYJSError(context, "unrecognized selector %s sent to object %p", sel_getName(_cmd), self);
2422             type = CYPoolCString(pool, context, [method _typeString]);
2423         } CYPoolCatch(NULL)
2424     }
2425
2426     void *setup[2];
2427     setup[0] = &self;
2428     setup[1] = &_cmd;
2429
2430     sig::Signature signature;
2431     sig::Parse(pool, &signature, type, &Structor_);
2432
2433     size_t used(count + 3);
2434     if (used > signature.count) {
2435         sig::Element *elements(new (pool) sig::Element[used]);
2436         memcpy(elements, signature.elements, used * sizeof(sig::Element));
2437
2438         for (size_t index(signature.count); index != used; ++index) {
2439             sig::Element *element(&elements[index]);
2440             element->name = NULL;
2441             element->offset = _not(size_t);
2442
2443             sig::Type *type(new (pool) sig::Type);
2444             memset(type, 0, sizeof(*type));
2445             type->primitive = sig::object_P;
2446             element->type = type;
2447         }
2448
2449         signature.elements = elements;
2450         signature.count = used;
2451     }
2452
2453     ffi_cif cif;
2454     sig::sig_ffi_cif(pool, &sig::ObjectiveC, &signature, &cif);
2455
2456     if (imp == NULL) {
2457 #ifdef __APPLE__
2458 #ifndef CY_NO_STRET
2459         if (stret(cif.rtype))
2460             imp = class_getMethodImplementation_stret(_class, _cmd);
2461         else
2462 #endif
2463             imp = class_getMethodImplementation(_class, _cmd);
2464 #else
2465         objc_super super = {self, _class};
2466         imp = objc_msg_lookup_super(&super, _cmd);
2467 #endif
2468     }
2469
2470     void (*function)() = reinterpret_cast<void (*)()>(imp);
2471     return CYCallFunction(pool, context, 2, setup, count, arguments, initialize, &signature, &cif, function);
2472 }
2473
2474 static JSValueRef $objc_msgSend(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[]) {
2475     if (count < 2)
2476         throw CYJSError(context, "too few arguments to objc_msgSend");
2477
2478     CYPool pool;
2479
2480     bool uninitialized;
2481
2482     id self;
2483     SEL _cmd;
2484     Class _class;
2485
2486     if (JSValueIsObjectOfClass(context, arguments[0], Super_)) {
2487         cy::Super *internal(reinterpret_cast<cy::Super *>(JSObjectGetPrivate((JSObjectRef) arguments[0])));
2488         self = internal->GetValue();
2489         _class = internal->class_;;
2490         uninitialized = false;
2491     } else if (CYJSValueIsNSObject(context, arguments[0])) {
2492         Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate((JSObjectRef) arguments[0])));
2493         self = internal->GetValue();
2494         _class = nil;
2495         uninitialized = internal->IsUninitialized();
2496         if (uninitialized)
2497             internal->value_ = nil;
2498     } else {
2499         self = CYCastNSObject(&pool, context, arguments[0]);
2500         _class = nil;
2501         uninitialized = false;
2502     }
2503
2504     if (self == nil)
2505         return CYJSNull(context);
2506
2507     _cmd = CYCastSEL(context, arguments[1]);
2508
2509     return CYSendMessage(pool, context, self, _class, _cmd, count - 2, arguments + 2, uninitialized);
2510 }
2511
2512 static JSValueRef $objc_msgSend(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
2513     return $objc_msgSend(context, object, _this, count, arguments);
2514 } CYCatch(NULL) }
2515
2516 static JSValueRef Selector_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
2517     JSValueRef setup[count + 2];
2518     setup[0] = _this;
2519     setup[1] = object;
2520     memcpy(setup + 2, arguments, sizeof(JSValueRef) * count);
2521     return $objc_msgSend(context, NULL, NULL, count + 2, setup);
2522 } CYCatch(NULL) }
2523
2524 static JSValueRef Message_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
2525     CYPool pool;
2526     Message_privateData *internal(reinterpret_cast<Message_privateData *>(JSObjectGetPrivate(object)));
2527
2528     // XXX: handle Instance::Uninitialized?
2529     id self(CYCastNSObject(&pool, context, _this));
2530
2531     void *setup[2];
2532     setup[0] = &self;
2533     setup[1] = &internal->sel_;
2534
2535     return CYCallFunction(pool, context, 2, setup, count, arguments, false, &internal->signature_, &internal->cif_, internal->GetValue());
2536 } CYCatch(NULL) }
2537
2538 static JSObjectRef Super_new(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
2539     if (count != 2)
2540         throw CYJSError(context, "incorrect number of arguments to objc_super constructor");
2541     CYPool pool;
2542     id self(CYCastNSObject(&pool, context, arguments[0]));
2543     Class _class(CYCastClass(pool, context, arguments[1]));
2544     return cy::Super::Make(context, self, _class);
2545 } CYCatch(NULL) }
2546
2547 static JSObjectRef Selector_new(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
2548     if (count != 1)
2549         throw CYJSError(context, "incorrect number of arguments to Selector constructor");
2550     CYPool pool;
2551     const char *name(CYPoolCString(pool, context, arguments[0]));
2552     return CYMakeSelector(context, sel_registerName(name));
2553 } CYCatch(NULL) }
2554
2555 static JSObjectRef Instance_new(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
2556     if (count > 1)
2557         throw CYJSError(context, "incorrect number of arguments to Instance constructor");
2558     id self(count == 0 ? nil : CYCastPointer<id>(context, arguments[0]));
2559     return CYMakeInstance(context, self, false);
2560 } CYCatch(NULL) }
2561
2562 static JSValueRef CYValue_getProperty_value(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
2563     CYValue *internal(reinterpret_cast<CYValue *>(JSObjectGetPrivate(object)));
2564     return CYCastJSValue(context, reinterpret_cast<uintptr_t>(internal->value_));
2565 } CYCatch(NULL) }
2566
2567 static JSValueRef CYValue_callAsFunction_$cya(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
2568     CYValue *internal(reinterpret_cast<CYValue *>(JSObjectGetPrivate(_this)));
2569     Type_privateData *typical(internal->GetType());
2570
2571     sig::Type *type;
2572     ffi_type *ffi;
2573
2574     if (typical == NULL) {
2575         type = NULL;
2576         ffi = NULL;
2577     } else {
2578         type = typical->type_;
2579         ffi = typical->ffi_;
2580     }
2581
2582     return CYMakePointer(context, &internal->value_, _not(size_t), type, ffi, object);
2583 } CYCatch(NULL) }
2584
2585 static JSValueRef FunctionInstance_getProperty_type(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
2586     Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(object)));
2587     const char *encoding(CYBlockEncoding(internal->GetValue()));
2588     if (encoding == NULL)
2589         return CYJSNull(context);
2590     // XXX: this should be stored on a FunctionInstance private value subclass
2591     CYPool pool;
2592     sig::Signature signature;
2593     sig::Parse(pool, &signature, encoding, &Structor_);
2594     return CYMakeType(context, &signature);
2595 } CYCatch(NULL) }
2596
2597 static JSValueRef Instance_getProperty_constructor(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
2598     Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(object)));
2599     return Instance::Make(context, (id) object_getClass(internal->GetValue()));
2600 } CYCatch(NULL) }
2601
2602 static JSValueRef Instance_getProperty_prototype(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
2603     Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(object)));
2604     id self(internal->GetValue());
2605     if (!CYIsClass(self))
2606         return CYJSUndefined(context);
2607     return CYGetClassPrototype(context, self);
2608 } CYCatch(NULL) }
2609
2610 static JSValueRef Instance_getProperty_messages(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
2611     Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(object)));
2612     id self(internal->GetValue());
2613     if (!CYIsClass(self))
2614         return CYJSUndefined(context);
2615     return Messages::Make(context, (Class) self);
2616 } CYCatch(NULL) }
2617
2618 static JSValueRef Instance_callAsFunction_toCYON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
2619     if (!CYJSValueIsNSObject(context, _this))
2620         return NULL;
2621
2622     Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(_this)));
2623     return CYCastJSValue(context, CYJSString(context, CYCastNSCYON(internal->GetValue(), false)));
2624 } CYCatch(NULL) }
2625
2626 static JSValueRef Instance_callAsFunction_toJSON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
2627     if (!CYJSValueIsNSObject(context, _this))
2628         return NULL;
2629
2630     Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(_this)));
2631     id value(internal->GetValue());
2632
2633     CYPoolTry {
2634         NSString *key;
2635         if (count == 0)
2636             key = nil;
2637         else
2638             key = CYCastNSString(NULL, context, CYJSString(context, arguments[0]));
2639
2640         if (!CYImplements(value, object_getClass(value), @selector(cy$toJSON:inContext:)))
2641             return CYJSUndefined(context);
2642         else if (JSValueRef json = [value cy$toJSON:key inContext:context])
2643             return json;
2644         else
2645             return CYCastJSValue(context, CYJSString(context, [value description]));
2646     } CYPoolCatch(NULL)
2647 } CYCatch(NULL) return /*XXX*/ NULL; }
2648
2649 static JSValueRef Instance_callAsFunction_valueOf(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
2650     if (!CYJSValueIsNSObject(context, _this))
2651         return NULL;
2652
2653     Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(_this)));
2654     id value(internal->GetValue());
2655
2656     if (![value respondsToSelector:@selector(cy$valueOfInContext:)])
2657         return _this;
2658
2659     if (JSValueRef result = [value cy$valueOfInContext:context])
2660         return result;
2661
2662     return _this;
2663 } CYCatch(NULL) return /*XXX*/ NULL; }
2664
2665 static JSValueRef Instance_callAsFunction_toPointer(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
2666     if (!CYJSValueIsNSObject(context, _this))
2667         return NULL;
2668
2669     Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(_this)));
2670     // XXX: but... but... THIS ISN'T A POINTER! :(
2671     return CYCastJSValue(context, reinterpret_cast<uintptr_t>(internal->GetValue()));
2672 } CYCatch(NULL) return /*XXX*/ NULL; }
2673
2674 static JSValueRef Instance_callAsFunction_toString(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
2675     if (!CYJSValueIsNSObject(context, _this))
2676         return NULL;
2677
2678     Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(_this)));
2679     id value(internal->GetValue());
2680
2681     CYPoolTry {
2682         // XXX: this seems like a stupid implementation; what if it crashes? why not use the CYONifier backend?
2683         return CYCastJSValue(context, CYJSString(context, [value description]));
2684     } CYPoolCatch(NULL)
2685 } CYCatch(NULL) return /*XXX*/ NULL; }
2686
2687 static JSValueRef Class_callAsFunction_pointerTo(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
2688     if (!CYJSValueIsNSObject(context, _this))
2689         return NULL;
2690
2691     Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(_this)));
2692     id value(internal->GetValue());
2693
2694     if (!CYIsClass(value))
2695         CYThrow("non-Class object cannot be used as Type");
2696
2697     // XXX: this is a very silly implementation
2698
2699     std::ostringstream type;
2700     type << "@\"";
2701     type << class_getName(value);
2702     type << "\"";
2703
2704     CYPoolTry {
2705         return CYMakeType(context, type.str().c_str());
2706     } CYPoolCatch(NULL)
2707 } CYCatch(NULL) return /*XXX*/ NULL; }
2708
2709 static JSValueRef Selector_callAsFunction_toString(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
2710     Selector_privateData *internal(reinterpret_cast<Selector_privateData *>(JSObjectGetPrivate(_this)));
2711     return CYCastJSValue(context, sel_getName(internal->GetValue()));
2712 } CYCatch(NULL) }
2713
2714 static JSValueRef Selector_callAsFunction_toJSON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
2715     return Selector_callAsFunction_toString(context, object, _this, count, arguments, exception);
2716 }
2717
2718 static JSValueRef Selector_callAsFunction_toCYON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
2719     Selector_privateData *internal(reinterpret_cast<Selector_privateData *>(JSObjectGetPrivate(_this)));
2720     const char *name(sel_getName(internal->GetValue()));
2721
2722     CYPoolTry {
2723         NSString *string([NSString stringWithFormat:@"@selector(%s)", name]);
2724         return CYCastJSValue(context, CYJSString(context, string));
2725     } CYPoolCatch(NULL)
2726 } CYCatch(NULL) return /*XXX*/ NULL; }
2727
2728 static JSValueRef Selector_callAsFunction_type(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
2729     if (count != 1)
2730         throw CYJSError(context, "incorrect number of arguments to Selector.type");
2731
2732     CYPool pool;
2733     Selector_privateData *internal(reinterpret_cast<Selector_privateData *>(JSObjectGetPrivate(_this)));
2734     SEL sel(internal->GetValue());
2735
2736     objc_method *method;
2737     if (Class _class = CYCastClass(pool, context, arguments[0]))
2738         method = class_getInstanceMethod(_class, sel);
2739     else
2740         method = NULL;
2741
2742     const char *encoding(CYPoolTypeEncoding(pool, context, sel, method));
2743     if (encoding == NULL)
2744         return CYJSNull(context);
2745
2746     sig::Signature signature;
2747     sig::Parse(pool, &signature, encoding, &Structor_);
2748     return CYMakeType(context, &signature);
2749 } CYCatch(NULL) }
2750
2751 static JSStaticValue Selector_staticValues[2] = {
2752     {"value", &CYValue_getProperty_value, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete},
2753     {NULL, NULL, NULL, 0}
2754 };
2755
2756 // XXX: this is sadly duplicated in FunctionInstance_staticValues
2757 static JSStaticValue Instance_staticValues[5] = {
2758     {"constructor", &Instance_getProperty_constructor, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2759     {"messages", &Instance_getProperty_messages, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2760     {"prototype", &Instance_getProperty_prototype, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2761     {"value", &CYValue_getProperty_value, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2762     {NULL, NULL, NULL, 0}
2763 };
2764
2765 static JSStaticValue FunctionInstance_staticValues[6] = {
2766     {"type", &FunctionInstance_getProperty_type, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2767     // XXX: this is sadly a duplicate of Instance_staticValues
2768     {"constructor", &Instance_getProperty_constructor, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2769     {"messages", &Instance_getProperty_messages, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2770     {"prototype", &Instance_getProperty_prototype, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2771     {"value", &CYValue_getProperty_value, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2772     {NULL, NULL, NULL, 0}
2773 };
2774
2775 static JSStaticFunction Instance_staticFunctions[7] = {
2776     {"$cya", &CYValue_callAsFunction_$cya, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2777     {"toCYON", &Instance_callAsFunction_toCYON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2778     {"toJSON", &Instance_callAsFunction_toJSON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2779     {"valueOf", &Instance_callAsFunction_valueOf, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2780     {"toPointer", &Instance_callAsFunction_toPointer, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2781     {"toString", &Instance_callAsFunction_toString, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2782     {NULL, NULL, 0}
2783 };
2784
2785 static JSStaticFunction Class_staticFunctions[2] = {
2786     {"pointerTo", &Class_callAsFunction_pointerTo, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2787     {NULL, NULL, 0}
2788 };
2789
2790 static JSStaticFunction Internal_staticFunctions[2] = {
2791     {"$cya", &Internal_callAsFunction_$cya, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2792     {NULL, NULL, 0}
2793 };
2794
2795 static JSStaticFunction Selector_staticFunctions[5] = {
2796     {"toCYON", &Selector_callAsFunction_toCYON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2797     {"toJSON", &Selector_callAsFunction_toJSON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2798     {"toString", &Selector_callAsFunction_toString, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2799     {"type", &Selector_callAsFunction_type, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2800     {NULL, NULL, 0}
2801 };
2802
2803 #ifdef __APPLE__
2804 JSValueRef NSCFType$cy$toJSON$inContext$(id self, SEL sel, JSValueRef key, JSContextRef context) { CYObjectiveTry_ {
2805     return CYCastJSValue(context, [(NSString *) CFCopyDescription((CFTypeRef) self) autorelease]);
2806 } CYObjectiveCatch }
2807 #endif
2808
2809 void CYObjectiveC_Initialize() { /*XXX*/ JSContextRef context(NULL); CYPoolTry {
2810     $objc_setAssociatedObject = reinterpret_cast<void (*)(id, void *, id value, objc_AssociationPolicy)>(dlsym(RTLD_DEFAULT, "objc_setAssociatedObject"));
2811     $objc_getAssociatedObject = reinterpret_cast<id (*)(id, void *)>(dlsym(RTLD_DEFAULT, "objc_getAssociatedObject"));
2812     $objc_removeAssociatedObjects = reinterpret_cast<void (*)(id)>(dlsym(RTLD_DEFAULT, "objc_removeAssociatedObjects"));
2813
2814     CYPool &pool(CYGetGlobalPool());
2815
2816     Object_type = new(pool) Type_privateData("@");
2817     Selector_type = new(pool) Type_privateData(":");
2818
2819     NSArray_ = objc_getClass("NSArray");
2820     NSBlock_ = objc_getClass("NSBlock");
2821     NSDictionary_ = objc_getClass("NSDictionary");
2822     NSNumber_ = objc_getClass("NSNumber");
2823     NSString_ = objc_getClass("NSString");
2824     Object_ = objc_getClass("Object");
2825
2826 #ifdef __APPLE__
2827     __NSMallocBlock__ = objc_getClass("__NSMallocBlock__");
2828
2829     // XXX: apparently, iOS now has both of these
2830     NSCFBoolean_ = objc_getClass("__NSCFBoolean");
2831     if (NSCFBoolean_ == nil)
2832         NSCFBoolean_ = objc_getClass("NSCFBoolean");
2833
2834     NSCFType_ = objc_getClass("NSCFType");
2835
2836     NSZombie_ = objc_getClass("_NSZombie_");
2837
2838     banned_.insert(Object_);
2839     banned_.insert(objc_getClass("__NSAtom"));
2840     banned_.insert(objc_getClass("__NSGenericDeallocHandler"));
2841     banned_.insert(objc_getClass("NSMessageBuilder"));
2842     banned_.insert(objc_getClass("__NSMessageBuilder"));
2843 #else
2844     NSBoolNumber_ = objc_getClass("NSBoolNumber");
2845 #endif
2846
2847     JSClassDefinition definition;
2848
2849     definition = kJSClassDefinitionEmpty;
2850     definition.className = "Instance";
2851     definition.staticValues = Instance_staticValues;
2852     definition.staticFunctions = Instance_staticFunctions;
2853     definition.hasProperty = &Instance_hasProperty;
2854     definition.getProperty = &Instance_getProperty;
2855     definition.setProperty = &Instance_setProperty;
2856     definition.deleteProperty = &Instance_deleteProperty;
2857     definition.getPropertyNames = &Instance_getPropertyNames;
2858     definition.callAsConstructor = &Instance_callAsConstructor;
2859     definition.hasInstance = &Instance_hasInstance;
2860     definition.finalize = &CYFinalize;
2861     Instance_ = JSClassCreate(&definition);
2862
2863     definition.className = "ArrayInstance";
2864     ArrayInstance_ = JSClassCreate(&definition);
2865
2866     definition.className = "BooleanInstance";
2867     BooleanInstance_ = JSClassCreate(&definition);
2868
2869     definition.className = "NumberInstance";
2870     NumberInstance_ = JSClassCreate(&definition);
2871
2872     definition.className = "ObjectInstance";
2873     ObjectInstance_ = JSClassCreate(&definition);
2874
2875     definition.className = "StringInstance";
2876     StringInstance_ = JSClassCreate(&definition);
2877
2878     definition.className = "FunctionInstance";
2879     definition.staticValues = FunctionInstance_staticValues;
2880     definition.callAsFunction = &FunctionInstance_callAsFunction;
2881     FunctionInstance_ = JSClassCreate(&definition);
2882
2883     definition = kJSClassDefinitionEmpty;
2884     definition.className = "Class";
2885     definition.staticFunctions = Class_staticFunctions;
2886     Class_ = JSClassCreate(&definition);
2887
2888     definition = kJSClassDefinitionEmpty;
2889     definition.className = "Internal";
2890     definition.staticFunctions = Internal_staticFunctions;
2891     definition.hasProperty = &Internal_hasProperty;
2892     definition.getProperty = &Internal_getProperty;
2893     definition.setProperty = &Internal_setProperty;
2894     definition.getPropertyNames = &Internal_getPropertyNames;
2895     definition.finalize = &CYFinalize;
2896     Internal_ = JSClassCreate(&definition);
2897
2898     definition = kJSClassDefinitionEmpty;
2899     definition.className = "Message";
2900     definition.staticFunctions = cy::Functor::StaticFunctions;
2901     definition.staticValues = cy::Functor::StaticValues;
2902     definition.callAsFunction = &Message_callAsFunction;
2903     definition.finalize = &CYFinalize;
2904     Message_ = JSClassCreate(&definition);
2905
2906     definition = kJSClassDefinitionEmpty;
2907     definition.className = "Messages";
2908     definition.hasProperty = &Messages_hasProperty;
2909     definition.getProperty = &Messages_getProperty;
2910     definition.setProperty = &Messages_setProperty;
2911 #if 0 && OBJC_API_VERSION < 2
2912     definition.deleteProperty = &Messages_deleteProperty;
2913 #endif
2914     definition.getPropertyNames = &Messages_getPropertyNames;
2915     definition.finalize = &CYFinalize;
2916     Messages_ = JSClassCreate(&definition);
2917
2918     definition = kJSClassDefinitionEmpty;
2919     definition.className = "Selector";
2920     definition.staticValues = Selector_staticValues;
2921     definition.staticFunctions = Selector_staticFunctions;
2922     definition.callAsFunction = &Selector_callAsFunction;
2923     definition.finalize = &CYFinalize;
2924     Selector_ = JSClassCreate(&definition);
2925
2926     definition = kJSClassDefinitionEmpty;
2927     definition.className = "Super";
2928     definition.staticFunctions = Internal_staticFunctions;
2929     definition.finalize = &CYFinalize;
2930     Super_ = JSClassCreate(&definition);
2931
2932     definition = kJSClassDefinitionEmpty;
2933     definition.className = "ObjectiveC::Classes";
2934     definition.getProperty = &ObjectiveC_Classes_getProperty;
2935     definition.getPropertyNames = &ObjectiveC_Classes_getPropertyNames;
2936     ObjectiveC_Classes_ = JSClassCreate(&definition);
2937
2938     definition = kJSClassDefinitionEmpty;
2939     definition.className = "ObjectiveC::Constants";
2940     definition.getProperty = &ObjectiveC_Constants_getProperty;
2941     definition.getPropertyNames = &ObjectiveC_Constants_getPropertyNames;
2942     ObjectiveC_Constants_ = JSClassCreate(&definition);
2943
2944 #if OBJC_API_VERSION >= 2
2945     definition = kJSClassDefinitionEmpty;
2946     definition.className = "ObjectiveC::Images";
2947     definition.getProperty = &ObjectiveC_Images_getProperty;
2948     definition.getPropertyNames = &ObjectiveC_Images_getPropertyNames;
2949     ObjectiveC_Images_ = JSClassCreate(&definition);
2950
2951     definition = kJSClassDefinitionEmpty;
2952     definition.className = "ObjectiveC::Image::Classes";
2953     definition.getProperty = &ObjectiveC_Image_Classes_getProperty;
2954     definition.getPropertyNames = &ObjectiveC_Image_Classes_getPropertyNames;
2955     ObjectiveC_Image_Classes_ = JSClassCreate(&definition);
2956 #endif
2957
2958     definition = kJSClassDefinitionEmpty;
2959     definition.className = "ObjectiveC::Protocols";
2960     definition.getProperty = &ObjectiveC_Protocols_getProperty;
2961     definition.getPropertyNames = &ObjectiveC_Protocols_getPropertyNames;
2962     ObjectiveC_Protocols_ = JSClassCreate(&definition);
2963
2964 #ifdef __APPLE__
2965 // XXX: this is horrible; there has to be a better way to do this
2966 #ifdef __LP64__
2967     class_addMethod(NSCFType_, @selector(cy$toJSON:inContext:), reinterpret_cast<IMP>(&NSCFType$cy$toJSON$inContext$), "^{OpaqueJSValue=}32@0:8@16^{OpaqueJSContext=}24");
2968 #else
2969     class_addMethod(NSCFType_, @selector(cy$toJSON:inContext:), reinterpret_cast<IMP>(&NSCFType$cy$toJSON$inContext$), "^{OpaqueJSValue=}16@0:4@8^{OpaqueJSContext=}12");
2970 #endif
2971 #endif
2972 } CYPoolCatch() }
2973
2974 void CYObjectiveC_SetupContext(JSContextRef context) { CYPoolTry {
2975     JSObjectRef global(CYGetGlobalObject(context));
2976     JSObjectRef cy(CYCastJSObject(context, CYGetProperty(context, global, cy_s)));
2977     JSObjectRef cycript(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Cycript"))));
2978     JSObjectRef all(CYCastJSObject(context, CYGetProperty(context, cycript, CYJSString("all"))));
2979     JSObjectRef alls(CYCastJSObject(context, CYGetProperty(context, cycript, CYJSString("alls"))));
2980
2981     JSObjectRef ObjectiveC(JSObjectMake(context, NULL, NULL));
2982     CYSetProperty(context, cycript, CYJSString("ObjectiveC"), ObjectiveC);
2983
2984     JSObjectRef protocols(JSObjectMake(context, ObjectiveC_Protocols_, NULL));
2985     CYSetProperty(context, ObjectiveC, CYJSString("protocols"), protocols);
2986     CYArrayPush(context, alls, protocols);
2987
2988     JSObjectRef classes(JSObjectMake(context, ObjectiveC_Classes_, NULL));
2989     CYSetProperty(context, ObjectiveC, CYJSString("classes"), classes);
2990     CYArrayPush(context, alls, classes);
2991
2992     JSObjectRef constants(JSObjectMake(context, ObjectiveC_Constants_, NULL));
2993     CYSetProperty(context, ObjectiveC, CYJSString("constants"), constants);
2994     CYArrayPush(context, alls, constants);
2995
2996 #if OBJC_API_VERSION >= 2
2997     CYSetProperty(context, ObjectiveC, CYJSString("images"), JSObjectMake(context, ObjectiveC_Images_, NULL));
2998 #endif
2999
3000     JSObjectRef Class(JSObjectMakeConstructor(context, Class_, NULL));
3001     JSObjectRef Instance(JSObjectMakeConstructor(context, Instance_, &Instance_new));
3002     JSObjectRef Message(JSObjectMakeConstructor(context, Message_, NULL));
3003     JSObjectRef Selector(JSObjectMakeConstructor(context, Selector_, &Selector_new));
3004     JSObjectRef Super(JSObjectMakeConstructor(context, Super_, &Super_new));
3005
3006     JSObjectRef Instance_prototype(CYCastJSObject(context, CYGetProperty(context, Instance, prototype_s)));
3007     CYSetProperty(context, cy, CYJSString("Instance_prototype"), Instance_prototype);
3008
3009     JSObjectRef ArrayInstance(JSObjectMakeConstructor(context, ArrayInstance_, NULL));
3010     JSObjectRef ArrayInstance_prototype(CYCastJSObject(context, CYGetProperty(context, ArrayInstance, prototype_s)));
3011     CYSetProperty(context, cy, CYJSString("ArrayInstance_prototype"), ArrayInstance_prototype);
3012     JSObjectRef Array_prototype(CYGetCachedObject(context, CYJSString("Array_prototype")));
3013     JSObjectSetPrototype(context, ArrayInstance_prototype, Array_prototype);
3014
3015     JSObjectRef BooleanInstance(JSObjectMakeConstructor(context, BooleanInstance_, NULL));
3016     JSObjectRef BooleanInstance_prototype(CYCastJSObject(context, CYGetProperty(context, BooleanInstance, prototype_s)));
3017     CYSetProperty(context, cy, CYJSString("BooleanInstance_prototype"), BooleanInstance_prototype);
3018     JSObjectRef Boolean_prototype(CYGetCachedObject(context, CYJSString("Boolean_prototype")));
3019     JSObjectSetPrototype(context, BooleanInstance_prototype, Boolean_prototype);
3020
3021     JSObjectRef FunctionInstance(JSObjectMakeConstructor(context, FunctionInstance_, NULL));
3022     JSObjectRef FunctionInstance_prototype(CYCastJSObject(context, CYGetProperty(context, FunctionInstance, prototype_s)));
3023     CYSetProperty(context, cy, CYJSString("FunctionInstance_prototype"), FunctionInstance_prototype);
3024     JSObjectRef Function_prototype(CYGetCachedObject(context, CYJSString("Function_prototype")));
3025     JSObjectSetPrototype(context, FunctionInstance_prototype, Function_prototype);
3026
3027     JSObjectRef NumberInstance(JSObjectMakeConstructor(context, NumberInstance_, NULL));
3028     JSObjectRef NumberInstance_prototype(CYCastJSObject(context, CYGetProperty(context, NumberInstance, prototype_s)));
3029     CYSetProperty(context, cy, CYJSString("NumberInstance_prototype"), NumberInstance_prototype);
3030     JSObjectRef Number_prototype(CYGetCachedObject(context, CYJSString("Number_prototype")));
3031     JSObjectSetPrototype(context, NumberInstance_prototype, Number_prototype);
3032
3033     JSObjectRef ObjectInstance(JSObjectMakeConstructor(context, ObjectInstance_, NULL));
3034     JSObjectRef ObjectInstance_prototype(CYCastJSObject(context, CYGetProperty(context, ObjectInstance, prototype_s)));
3035     CYSetProperty(context, cy, CYJSString("ObjectInstance_prototype"), ObjectInstance_prototype);
3036     JSObjectRef Object_prototype(CYGetCachedObject(context, CYJSString("Object_prototype")));
3037     JSObjectSetPrototype(context, ObjectInstance_prototype, Object_prototype);
3038
3039     JSObjectRef StringInstance(JSObjectMakeConstructor(context, StringInstance_, NULL));
3040     JSObjectRef StringInstance_prototype(CYCastJSObject(context, CYGetProperty(context, StringInstance, prototype_s)));
3041     CYSetProperty(context, cy, CYJSString("StringInstance_prototype"), StringInstance_prototype);
3042     JSObjectRef String_prototype(CYGetCachedObject(context, CYJSString("String_prototype")));
3043     JSObjectSetPrototype(context, StringInstance_prototype, String_prototype);
3044
3045     JSObjectRef Class_prototype(CYCastJSObject(context, CYGetProperty(context, Class, prototype_s)));
3046     CYSetProperty(context, cy, CYJSString("Class_prototype"), Class_prototype);
3047     JSObjectSetPrototype(context, Class_prototype, Instance_prototype);
3048
3049     CYSetProperty(context, cycript, CYJSString("Instance"), Instance);
3050     CYSetProperty(context, cycript, CYJSString("Selector"), Selector);
3051     CYSetProperty(context, cycript, CYJSString("objc_super"), Super);
3052
3053     JSObjectRef box(JSObjectMakeFunctionWithCallback(context, CYJSString("box"), &Instance_box_callAsFunction));
3054     CYSetProperty(context, Instance, CYJSString("box"), box, kJSPropertyAttributeDontEnum);
3055
3056 #ifdef __APPLE__
3057     CYSetProperty(context, all, CYJSString("choose"), &choose, kJSPropertyAttributeDontEnum);
3058 #endif
3059
3060     CYSetProperty(context, all, CYJSString("objc_msgSend"), &$objc_msgSend, kJSPropertyAttributeDontEnum);
3061
3062     JSObjectSetPrototype(context, CYCastJSObject(context, CYGetProperty(context, Message, prototype_s)), Function_prototype);
3063     JSObjectSetPrototype(context, CYCastJSObject(context, CYGetProperty(context, Selector, prototype_s)), Function_prototype);
3064 } CYPoolCatch() }
3065
3066 static CYHooks CYObjectiveCHooks = {
3067     &CYObjectiveC_ExecuteStart,
3068     &CYObjectiveC_ExecuteEnd,
3069     &CYObjectiveC_CallFunction,
3070     &CYObjectiveC_Initialize,
3071     &CYObjectiveC_SetupContext,
3072     &CYObjectiveC_PoolFFI,
3073     &CYObjectiveC_FromFFI,
3074 };
3075
3076 struct CYObjectiveC {
3077     CYObjectiveC() {
3078         hooks_ = &CYObjectiveCHooks;
3079         // XXX: evil magic juju to make this actually take effect on a Mac when compiled with autoconf/libtool doom!
3080         _assert(hooks_ != NULL);
3081     }
3082 } CYObjectiveC;
3083
3084 extern "C" void CydgetSetupContext(JSGlobalContextRef context) { CYObjectiveTry_ {
3085     CYSetupContext(context);
3086 } CYObjectiveCatch }
3087
3088 extern "C" void CydgetMemoryParse(const uint16_t **data, size_t *size) { try {
3089     CYPool pool;
3090
3091     CYUTF8String utf8(CYPoolUTF8String(pool, CYUTF16String(*data, *size)));
3092     utf8 = CYPoolCode(pool, utf8);
3093
3094     CYUTF16String utf16(CYPoolUTF16String(pool, CYUTF8String(utf8.data, utf8.size)));
3095     size_t bytes(utf16.size * sizeof(uint16_t));
3096     uint16_t *copy(reinterpret_cast<uint16_t *>(malloc(bytes)));
3097     memcpy(copy, utf16.data, bytes);
3098
3099     *data = copy;
3100     *size = utf16.size;
3101 } catch (const CYException &exception) {
3102     CYPool pool;
3103     @throw [NSException exceptionWithName:NSRangeException reason:[NSString stringWithFormat:@"%s", exception.PoolCString(pool)] userInfo:nil];
3104 } }