ObjectiveC/Library.mm

   1 /* Cycript - Optimizing JavaScript Compiler/Runtime
   2  * Copyright (C) 2009-2012  Jay Freeman (saurik)
   3 */
   4
   5 /* GNU Lesser General Public License, Version 3 {{{ */
   6 /*
   7  * Cycript is free software: you can redistribute it and/or modify it under
   8  * the terms of the GNU Lesser General Public License as published by the
   9  * Free Software Foundation, either version 3 of the License, or (at your
  10  * option) any later version.
  11  *
  12  * Cycript is distributed in the hope that it will be useful, but WITHOUT
  13  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  14  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
  15  * License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public License
  18  * along with Cycript.  If not, see <http://www.gnu.org/licenses/>.
  19 **/
  20 /* }}} */
  21
  22 #ifdef __APPLE__
  23 #include "Struct.hpp"
  24 #endif
  25
  26 #include <Foundation/Foundation.h>
  27
  28 #include "ObjectiveC/Internal.hpp"
  29
  30 #include <objc/objc-api.h>
  31
  32 #include "cycript.hpp"
  33
  34 #include "ObjectiveC/Internal.hpp"
  35
  36 #ifdef __APPLE__
  37 #include <CoreFoundation/CoreFoundation.h>
  38 #include <JavaScriptCore/JSStringRefCF.h>
  39 #include <WebKit/WebScriptObject.h>
  40 #include <objc/runtime.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
  51 #include <dlfcn.h>
  52
  53 #define CYObjectiveTry_(context) { \
  54     JSContextRef context_(context); \
  55     try
  56 #define CYObjectiveTry { \
  57     try
  58 #define CYObjectiveCatch \
  59     catch (const CYException &error) { \
  60         @throw CYCastNSObject(NULL, context_, error.CastJSValue(context_)); \
  61     } \
  62 }
  63
  64 #define CYPoolTry { \
  65     id _saved(nil); \
  66     NSAutoreleasePool *_pool([[NSAutoreleasePool alloc] init]); \
  67     @try
  68 #define CYPoolCatch(value) \
  69     @catch (NSException *error) { \
  70         _saved = [error retain]; \
  71         throw CYJSError(context, CYCastJSValue(context, error)); \
  72         return value; \
  73     } @finally { \
  74         [_pool release]; \
  75         if (_saved != nil) \
  76             [_saved autorelease]; \
  77     } \
  78 }
  79
  80 #define CYSadTry { \
  81     @try
  82 #define CYSadCatch(value) \
  83     @catch (NSException *error ) { \
  84         throw CYJSError(context, CYCastJSValue(context, error)); \
  85     } return value; \
  86 }
  87
  88 #ifndef __APPLE__
  89 #define class_getSuperclass GSObjCSuper
  90 #define class_getInstanceVariable GSCGetInstanceVariableDefinition
  91 #define class_getName GSNameFromClass
  92
  93 #define class_removeMethods(cls, list) GSRemoveMethodList(cls, list, YES)
  94
  95 #define ivar_getName(ivar) ((ivar)->ivar_name)
  96 #define ivar_getOffset(ivar) ((ivar)->ivar_offset)
  97 #define ivar_getTypeEncoding(ivar) ((ivar)->ivar_type)
  98
  99 #define method_getName(method) ((method)->method_name)
 100 #define method_getImplementation(method) ((method)->method_imp)
 101 #define method_getTypeEncoding(method) ((method)->method_types)
 102 #define method_setImplementation(method, imp) ((void) ((method)->method_imp = (imp)))
 103
 104 #undef objc_getClass
 105 #define objc_getClass GSClassFromName
 106
 107 #define objc_getProtocol GSProtocolFromName
 108
 109 #define object_getClass GSObjCClass
 110
 111 #define object_getInstanceVariable(object, name, value) ({ \
 112     objc_ivar *ivar(class_getInstanceVariable(object_getClass(object), name)); \
 113     _assert(value != NULL); \
 114     if (ivar != NULL) \
 115         GSObjCGetVariable(object, ivar_getOffset(ivar), sizeof(void *), value); \
 116     ivar; \
 117 })
 118
 119 #define object_setIvar(object, ivar, value) ({ \
 120     void *data = (value); \
 121     GSObjCSetVariable(object, ivar_getOffset(ivar), sizeof(void *), &data); \
 122 })
 123
 124 #define protocol_getName(protocol) [(protocol) name]
 125 #endif
 126
 127 static void (*$objc_setAssociatedObject)(id object, void *key, id value, objc_AssociationPolicy policy);
 128 static id (*$objc_getAssociatedObject)(id object, void *key);
 129 static void (*$objc_removeAssociatedObjects)(id object);
 130
 131 JSValueRef CYSendMessage(apr_pool_t *pool, JSContextRef context, id self, Class super, SEL _cmd, size_t count, const JSValueRef arguments[], bool initialize, JSValueRef *exception);
 132
 133 /* Objective-C Pool Release {{{ */
 134 apr_status_t CYPoolRelease_(void *data) {
 135     id object(reinterpret_cast<id>(data));
 136     [object release];
 137     return APR_SUCCESS;
 138 }
 139
 140 id CYPoolRelease_(apr_pool_t *pool, id object) {
 141     if (object == nil)
 142         return nil;
 143     else if (pool == NULL)
 144         return [object autorelease];
 145     else {
 146         apr_pool_cleanup_register(pool, object, &CYPoolRelease_, &apr_pool_cleanup_null);
 147         return object;
 148     }
 149 }
 150
 151 template <typename Type_>
 152 Type_ CYPoolRelease(apr_pool_t *pool, Type_ object) {
 153     return (Type_) CYPoolRelease_(pool, (id) object);
 154 }
 155 /* }}} */
 156 /* Objective-C Strings {{{ */
 157 const char *CYPoolCString(apr_pool_t *pool, JSContextRef context, NSString *value) {
 158     if (pool == NULL)
 159         return [value UTF8String];
 160     else {
 161         size_t size([value maximumLengthOfBytesUsingEncoding:NSUTF8StringEncoding] + 1);
 162         char *string(new(pool) char[size]);
 163         if (![value getCString:string maxLength:size encoding:NSUTF8StringEncoding])
 164             throw CYJSError(context, "[NSString getCString:maxLength:encoding:] == NO");
 165         return string;
 166     }
 167 }
 168
 169 JSStringRef CYCopyJSString(JSContextRef context, NSString *value) {
 170 #ifdef __APPLE__
 171     return JSStringCreateWithCFString(reinterpret_cast<CFStringRef>(value));
 172 #else
 173     CYPool pool;
 174     return CYCopyJSString(CYPoolCString(pool, context, value));
 175 #endif
 176 }
 177
 178 JSStringRef CYCopyJSString(JSContextRef context, NSObject *value) {
 179     if (value == nil)
 180         return NULL;
 181     // XXX: this definition scares me; is anyone using this?!
 182     NSString *string([value description]);
 183     return CYCopyJSString(context, string);
 184 }
 185
 186 NSString *CYCopyNSString(const CYUTF8String &value) {
 187 #ifdef __APPLE__
 188     return (NSString *) CFStringCreateWithBytes(kCFAllocatorDefault, reinterpret_cast<const UInt8 *>(value.data), value.size, kCFStringEncodingUTF8, true);
 189 #else
 190     return [[NSString alloc] initWithBytes:value.data length:value.size encoding:NSUTF8StringEncoding];
 191 #endif
 192 }
 193
 194 NSString *CYCopyNSString(JSContextRef context, JSStringRef value) {
 195 #ifdef __APPLE__
 196     return (NSString *) JSStringCopyCFString(kCFAllocatorDefault, value);
 197 #else
 198     CYPool pool;
 199     return CYCopyNSString(CYPoolUTF8String(pool, context, value));
 200 #endif
 201 }
 202
 203 NSString *CYCopyNSString(JSContextRef context, JSValueRef value) {
 204     return CYCopyNSString(context, CYJSString(context, value));
 205 }
 206
 207 NSString *CYCastNSString(apr_pool_t *pool, const CYUTF8String &value) {
 208     return CYPoolRelease(pool, CYCopyNSString(value));
 209 }
 210
 211 NSString *CYCastNSString(apr_pool_t *pool, SEL sel) {
 212     const char *name(sel_getName(sel));
 213     return CYPoolRelease(pool, CYCopyNSString(CYUTF8String(name, strlen(name))));
 214 }
 215
 216 NSString *CYCastNSString(apr_pool_t *pool, JSContextRef context, JSStringRef value) {
 217     return CYPoolRelease(pool, CYCopyNSString(context, value));
 218 }
 219
 220 CYUTF8String CYCastUTF8String(NSString *value) {
 221     NSData *data([value dataUsingEncoding:NSUTF8StringEncoding allowLossyConversion:NO]);
 222     return CYUTF8String(reinterpret_cast<const char *>([data bytes]), [data length]);
 223 }
 224 /* }}} */
 225
 226 JSValueRef CYCastJSValue(JSContextRef context, NSObject *value);
 227
 228 void CYThrow(JSContextRef context, NSException *error, JSValueRef *exception) {
 229     if (exception == NULL)
 230         throw error;
 231     *exception = CYCastJSValue(context, error);
 232 }
 233
 234 size_t CYGetIndex(NSString *value) {
 235     return CYGetIndex(CYCastUTF8String(value));
 236 }
 237
 238 bool CYGetOffset(apr_pool_t *pool, JSContextRef context, NSString *value, ssize_t &index) {
 239     return CYGetOffset(CYPoolCString(pool, context, value), index);
 240 }
 241
 242 static JSClassRef Instance_;
 243
 244 static JSClassRef ArrayInstance_;
 245 static JSClassRef FunctionInstance_;
 246 static JSClassRef ObjectInstance_;
 247 static JSClassRef StringInstance_;
 248
 249 static JSClassRef Internal_;
 250 static JSClassRef Message_;
 251 static JSClassRef Messages_;
 252 static JSClassRef Selector_;
 253 static JSClassRef Super_;
 254
 255 static JSClassRef ObjectiveC_Classes_;
 256 static JSClassRef ObjectiveC_Constants_;
 257 static JSClassRef ObjectiveC_Protocols_;
 258
 259 #ifdef __APPLE__
 260 static JSClassRef ObjectiveC_Image_Classes_;
 261 static JSClassRef ObjectiveC_Images_;
 262 #endif
 263
 264 #ifdef __APPLE__
 265 static Class NSCFBoolean_;
 266 static Class NSCFType_;
 267 static Class NSGenericDeallocHandler_;
 268 static Class NSMessageBuilder_;
 269 static Class NSZombie_;
 270 #else
 271 static Class NSBoolNumber_;
 272 #endif
 273
 274 static Class NSArray_;
 275 static Class NSBlock_;
 276 static Class NSDictionary_;
 277 static Class NSString_;
 278 static Class Object_;
 279
 280 static Type_privateData *Object_type;
 281 static Type_privateData *Selector_type;
 282
 283 Type_privateData *Instance::GetType() const {
 284     return Object_type;
 285 }
 286
 287 Type_privateData *Selector_privateData::GetType() const {
 288     return Selector_type;
 289 }
 290
 291 static JSValueRef Instance_callAsFunction_toString(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception);
 292
 293 JSValueRef CYGetClassPrototype(JSContextRef context, id self) {
 294     if (self == nil)
 295         return CYGetCachedObject(context, CYJSString("Instance_prototype"));
 296
 297     JSObjectRef global(CYGetGlobalObject(context));
 298     JSObjectRef cy(CYCastJSObject(context, CYGetProperty(context, global, cy_s)));
 299
 300     char label[32];
 301     sprintf(label, "i%p", self);
 302     CYJSString name(label);
 303
 304     JSValueRef value(CYGetProperty(context, cy, name));
 305     if (!JSValueIsUndefined(context, value))
 306         return value;
 307
 308     JSClassRef _class(NULL);
 309     JSValueRef prototype;
 310
 311     if (self == NSArray_)
 312         prototype = CYGetCachedObject(context, CYJSString("ArrayInstance_prototype"));
 313     else if (self == NSBlock_)
 314         prototype = CYGetCachedObject(context, CYJSString("FunctionInstance_prototype"));
 315     else if (self == NSDictionary_)
 316         prototype = CYGetCachedObject(context, CYJSString("ObjectInstance_prototype"));
 317     else if (self == NSString_)
 318         prototype = CYGetCachedObject(context, CYJSString("StringInstance_prototype"));
 319     else
 320         prototype = CYGetClassPrototype(context, class_getSuperclass(self));
 321
 322     JSObjectRef object(JSObjectMake(context, _class, NULL));
 323     JSObjectSetPrototype(context, object, prototype);
 324     CYSetProperty(context, cy, name, object);
 325
 326     return object;
 327 }
 328
 329 JSObjectRef Messages::Make(JSContextRef context, Class _class, bool array) {
 330     JSObjectRef value(JSObjectMake(context, Messages_, new Messages(_class)));
 331     if (_class == NSArray_)
 332         array = true;
 333     if (Class super = class_getSuperclass(_class))
 334         JSObjectSetPrototype(context, value, Messages::Make(context, super, array));
 335     /*else if (array)
 336         JSObjectSetPrototype(context, value, Array_prototype_);*/
 337     return value;
 338 }
 339
 340 JSObjectRef Internal::Make(JSContextRef context, id object, JSObjectRef owner) {
 341     return JSObjectMake(context, Internal_, new Internal(object, context, owner));
 342 }
 343
 344 namespace cy {
 345 JSObjectRef Super::Make(JSContextRef context, id object, Class _class) {
 346     JSObjectRef value(JSObjectMake(context, Super_, new Super(object, _class)));
 347     return value;
 348 } }
 349
 350 JSObjectRef Instance::Make(JSContextRef context, id object, Flags flags) {
 351     JSObjectRef value(JSObjectMake(context, Instance_, new Instance(object, flags)));
 352     JSObjectSetPrototype(context, value, CYGetClassPrototype(context, object_getClass(object)));
 353     return value;
 354 }
 355
 356 Instance::~Instance() {
 357     if ((flags_ & Transient) == 0)
 358         // XXX: does this handle background threads correctly?
 359         // XXX: this simply does not work on the console because I'm stupid
 360         [GetValue() performSelector:@selector(release) withObject:nil afterDelay:0];
 361 }
 362
 363 struct Message_privateData :
 364     cy::Functor
 365 {
 366     SEL sel_;
 367
 368     Message_privateData(SEL sel, const char *type, IMP value = NULL) :
 369         cy::Functor(type, reinterpret_cast<void (*)()>(value)),
 370         sel_(sel)
 371     {
 372     }
 373 };
 374
 375 JSObjectRef CYMakeInstance(JSContextRef context, id object, bool transient) {
 376     Instance::Flags flags;
 377
 378     if (transient)
 379         flags = Instance::Transient;
 380     else {
 381         flags = Instance::None;
 382         object = [object retain];
 383     }
 384
 385     return Instance::Make(context, object, flags);
 386 }
 387
 388 @interface NSMethodSignature (Cycript)
 389 - (NSString *) _typeString;
 390 @end
 391
 392 @interface NSObject (Cycript)
 393
 394 - (JSValueRef) cy$valueOfInContext:(JSContextRef)context;
 395 - (JSType) cy$JSType;
 396
 397 - (NSObject *) cy$toJSON:(NSString *)key;
 398 - (NSString *) cy$toCYON:(bool)objective;
 399
 400 - (bool) cy$hasProperty:(NSString *)name;
 401 - (NSObject *) cy$getProperty:(NSString *)name;
 402 - (bool) cy$setProperty:(NSString *)name to:(NSObject *)value;
 403 - (bool) cy$deleteProperty:(NSString *)name;
 404 - (void) cy$getPropertyNames:(JSPropertyNameAccumulatorRef)names inContext:(JSContextRef)context;
 405
 406 + (bool) cy$hasImplicitProperties;
 407
 408 @end
 409
 410 @protocol Cycript
 411 - (id) cy$box;
 412 - (JSValueRef) cy$valueOfInContext:(JSContextRef)context;
 413 @end
 414
 415 NSString *CYCastNSCYON(id value, bool objective) {
 416     NSString *string;
 417
 418     if (value == nil)
 419         string = @"nil";
 420     else {
 421         Class _class(object_getClass(value));
 422         SEL sel(@selector(cy$toCYON:));
 423
 424         if (objc_method *toCYON = class_getInstanceMethod(_class, sel))
 425             string = reinterpret_cast<NSString *(*)(id, SEL, bool)>(method_getImplementation(toCYON))(value, sel, objective);
 426         else if (objc_method *methodSignatureForSelector = class_getInstanceMethod(_class, @selector(methodSignatureForSelector:))) {
 427             if (reinterpret_cast<NSMethodSignature *(*)(id, SEL, SEL)>(method_getImplementation(methodSignatureForSelector))(value, @selector(methodSignatureForSelector:), sel) != nil)
 428                 string = [value cy$toCYON:objective];
 429             else goto fail;
 430         } else fail: {
 431             if (false);
 432 #ifdef __APPLE__
 433             else if (value == NSZombie_)
 434                 string = @"_NSZombie_";
 435             else if (_class == NSZombie_)
 436                 string = [NSString stringWithFormat:@"<_NSZombie_: %p>", value];
 437             // XXX: frowny /in/ the pants
 438             else if (value == NSGenericDeallocHandler_ || value == NSMessageBuilder_ || value == Object_)
 439                 string = nil;
 440 #endif
 441             else
 442                 string = [NSString stringWithFormat:@"%@", value];
 443         }
 444
 445         // XXX: frowny pants
 446         if (string == nil)
 447             string = @"undefined";
 448     }
 449
 450     return string;
 451 }
 452
 453 #ifdef __APPLE__
 454 struct PropertyAttributes {
 455     CYPool pool_;
 456
 457     const char *name;
 458
 459     const char *variable;
 460
 461     const char *getter_;
 462     const char *setter_;
 463
 464     bool readonly;
 465     bool copy;
 466     bool retain;
 467     bool nonatomic;
 468     bool dynamic;
 469     bool weak;
 470     bool garbage;
 471
 472     PropertyAttributes(objc_property_t property) :
 473         variable(NULL),
 474         getter_(NULL),
 475         setter_(NULL),
 476         readonly(false),
 477         copy(false),
 478         retain(false),
 479         nonatomic(false),
 480         dynamic(false),
 481         weak(false),
 482         garbage(false)
 483     {
 484         name = property_getName(property);
 485         const char *attributes(property_getAttributes(property));
 486
 487         for (char *state, *token(apr_strtok(apr_pstrdup(pool_, attributes), ",", &state)); token != NULL; token = apr_strtok(NULL, ",", &state)) {
 488             switch (*token) {
 489                 case 'R': readonly = true; break;
 490                 case 'C': copy = true; break;
 491                 case '&': retain = true; break;
 492                 case 'N': nonatomic = true; break;
 493                 case 'G': getter_ = token + 1; break;
 494                 case 'S': setter_ = token + 1; break;
 495                 case 'V': variable = token + 1; break;
 496             }
 497         }
 498
 499         /*if (variable == NULL) {
 500             variable = property_getName(property);
 501             size_t size(strlen(variable));
 502             char *name(new(pool_) char[size + 2]);
 503             name[0] = '_';
 504             memcpy(name + 1, variable, size);
 505             name[size + 1] = '\0';
 506             variable = name;
 507         }*/
 508     }
 509
 510     const char *Getter() {
 511         if (getter_ == NULL)
 512             getter_ = apr_pstrdup(pool_, name);
 513         return getter_;
 514     }
 515
 516     const char *Setter() {
 517         if (setter_ == NULL && !readonly) {
 518             size_t length(strlen(name));
 519
 520             char *temp(new(pool_) char[length + 5]);
 521             temp[0] = 's';
 522             temp[1] = 'e';
 523             temp[2] = 't';
 524
 525             if (length != 0) {
 526                 temp[3] = toupper(name[0]);
 527                 memcpy(temp + 4, name + 1, length - 1);
 528             }
 529
 530             temp[length + 3] = ':';
 531             temp[length + 4] = '\0';
 532             setter_ = temp;
 533         }
 534
 535         return setter_;
 536     }
 537
 538 };
 539 #endif
 540
 541 #ifdef __APPLE__
 542 NSObject *NSCFType$cy$toJSON(id self, SEL sel, NSString *key) {
 543     return [(NSString *) CFCopyDescription((CFTypeRef) self) autorelease];
 544 }
 545 #endif
 546
 547 #ifndef __APPLE__
 548 @interface CYWebUndefined : NSObject {
 549 }
 550
 551 + (CYWebUndefined *) undefined;
 552
 553 @end
 554
 555 @implementation CYWebUndefined
 556
 557 + (CYWebUndefined *) undefined {
 558     static CYWebUndefined *instance_([[CYWebUndefined alloc] init]);
 559     return instance_;
 560 }
 561
 562 @end
 563
 564 #define WebUndefined CYWebUndefined
 565 #endif
 566
 567 /* Bridge: CYJSObject {{{ */
 568 @interface CYJSObject : NSMutableDictionary {
 569     JSObjectRef object_;
 570     JSGlobalContextRef context_;
 571 }
 572
 573 - (id) initWithJSObject:(JSObjectRef)object inContext:(JSContextRef)context;
 574
 575 - (NSObject *) cy$toJSON:(NSString *)key;
 576
 577 - (NSUInteger) count;
 578 - (id) objectForKey:(id)key;
 579 - (NSEnumerator *) keyEnumerator;
 580 - (void) setObject:(id)object forKey:(id)key;
 581 - (void) removeObjectForKey:(id)key;
 582
 583 @end
 584 /* }}} */
 585 /* Bridge: CYJSArray {{{ */
 586 @interface CYJSArray : NSMutableArray {
 587     JSObjectRef object_;
 588     JSGlobalContextRef context_;
 589 }
 590
 591 - (id) initWithJSObject:(JSObjectRef)object inContext:(JSContextRef)context;
 592
 593 - (NSUInteger) count;
 594 - (id) objectAtIndex:(NSUInteger)index;
 595
 596 - (void) addObject:(id)anObject;
 597 - (void) insertObject:(id)anObject atIndex:(NSUInteger)index;
 598 - (void) removeLastObject;
 599 - (void) removeObjectAtIndex:(NSUInteger)index;
 600 - (void) replaceObjectAtIndex:(NSUInteger)index withObject:(id)anObject;
 601
 602 @end
 603 /* }}} */
 604
 605 _finline bool CYJSValueIsInstanceOfCachedConstructor(JSContextRef context, JSValueRef value, JSStringRef cache) {
 606     JSValueRef exception(NULL);
 607     JSObjectRef constructor(CYGetCachedObject(context, cache));
 608     bool is(JSValueIsInstanceOfConstructor(context, value, constructor, &exception));
 609     CYThrow(context, exception);
 610     return is;
 611 }
 612
 613 NSObject *CYCastNSObject(apr_pool_t *pool, JSContextRef context, JSObjectRef object) {
 614     if (JSValueIsObjectOfClass(context, object, Instance_)) {
 615         Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(object)));
 616         return internal->GetValue();
 617     }
 618
 619     bool array(CYJSValueIsInstanceOfCachedConstructor(context, object, Array_s));
 620     id value(array ? [CYJSArray alloc] : [CYJSObject alloc]);
 621     return CYPoolRelease(pool, [value initWithJSObject:object inContext:context]);
 622 }
 623
 624 NSNumber *CYCopyNSNumber(JSContextRef context, JSValueRef value) {
 625     return [[NSNumber alloc] initWithDouble:CYCastDouble(context, value)];
 626 }
 627
 628 #ifndef __APPLE__
 629 @interface NSBoolNumber : NSNumber {
 630 }
 631 @end
 632 #endif
 633
 634 id CYNSObject(apr_pool_t *pool, JSContextRef context, JSValueRef value, bool cast) {
 635     id object;
 636     bool copy;
 637
 638     switch (JSType type = JSValueGetType(context, value)) {
 639         case kJSTypeUndefined:
 640             object = [WebUndefined undefined];
 641             copy = false;
 642         break;
 643
 644         case kJSTypeNull:
 645             return NULL;
 646         break;
 647
 648         case kJSTypeBoolean:
 649 #ifdef __APPLE__
 650             object = (id) (CYCastBool(context, value) ? kCFBooleanTrue : kCFBooleanFalse);
 651             copy = false;
 652 #else
 653             object = [[NSBoolNumber alloc] initWithBool:CYCastBool(context, value)];
 654             copy = true;
 655 #endif
 656         break;
 657
 658         case kJSTypeNumber:
 659             object = CYCopyNSNumber(context, value);
 660             copy = true;
 661         break;
 662
 663         case kJSTypeString:
 664             object = CYCopyNSString(context, value);
 665             copy = true;
 666         break;
 667
 668         case kJSTypeObject:
 669             // XXX: this might could be more efficient
 670             object = CYCastNSObject(pool, context, (JSObjectRef) value);
 671             copy = false;
 672         break;
 673
 674         default:
 675             throw CYJSError(context, "JSValueGetType() == 0x%x", type);
 676         break;
 677     }
 678
 679     if (cast != copy)
 680         return object;
 681     else if (copy)
 682         return CYPoolRelease(pool, object);
 683     else
 684         return [object retain];
 685 }
 686
 687 NSObject *CYCastNSObject(apr_pool_t *pool, JSContextRef context, JSValueRef value) {
 688     return CYNSObject(pool, context, value, true);
 689 }
 690
 691 NSObject *CYCopyNSObject(apr_pool_t *pool, JSContextRef context, JSValueRef value) {
 692     return CYNSObject(pool, context, value, false);
 693 }
 694
 695 /* Bridge: NSArray {{{ */
 696 @implementation NSArray (Cycript)
 697
 698 - (id) cy$box {
 699     return [[self mutableCopy] autorelease];
 700 }
 701
 702 - (NSString *) cy$toCYON:(bool)objective {
 703     NSMutableString *json([[[NSMutableString alloc] init] autorelease]);
 704     [json appendString:@"@["];
 705
 706     bool comma(false);
 707 #ifdef __APPLE__
 708     for (id object in self) {
 709 #else
 710     for (size_t index(0), count([self count]); index != count; ++index) {
 711         id object([self objectAtIndex:index]);
 712 #endif
 713         if (comma)
 714             [json appendString:@","];
 715         else
 716             comma = true;
 717         if (object == nil || [object cy$JSType] != kJSTypeUndefined)
 718             [json appendString:CYCastNSCYON(object, true)];
 719         else {
 720             [json appendString:@","];
 721             comma = false;
 722         }
 723     }
 724
 725     [json appendString:@"]"];
 726     return json;
 727 }
 728
 729 - (bool) cy$hasProperty:(NSString *)name {
 730     if ([name isEqualToString:@"length"])
 731         return true;
 732
 733     size_t index(CYGetIndex(name));
 734     if (index == _not(size_t) || index >= [self count])
 735         return [super cy$hasProperty:name];
 736     else
 737         return true;
 738 }
 739
 740 - (NSObject *) cy$getProperty:(NSString *)name {
 741     if ([name isEqualToString:@"length"]) {
 742         NSUInteger count([self count]);
 743 #ifdef __APPLE__
 744         return [NSNumber numberWithUnsignedInteger:count];
 745 #else
 746         return [NSNumber numberWithUnsignedInt:count];
 747 #endif
 748     }
 749
 750     size_t index(CYGetIndex(name));
 751     if (index == _not(size_t) || index >= [self count])
 752         return [super cy$getProperty:name];
 753     else
 754         return [self objectAtIndex:index];
 755 }
 756
 757 - (void) cy$getPropertyNames:(JSPropertyNameAccumulatorRef)names inContext:(JSContextRef)context {
 758     [super cy$getPropertyNames:names inContext:context];
 759
 760     for (size_t index(0), count([self count]); index != count; ++index) {
 761         id object([self objectAtIndex:index]);
 762         if (object == nil || [object cy$JSType] != kJSTypeUndefined) {
 763             char name[32];
 764             sprintf(name, "%zu", index);
 765             JSPropertyNameAccumulatorAddName(names, CYJSString(name));
 766         }
 767     }
 768 }
 769
 770 + (bool) cy$hasImplicitProperties {
 771     return false;
 772 }
 773
 774 @end
 775 /* }}} */
 776 /* Bridge: NSBlock {{{ */
 777 #ifdef __APPLE__
 778 @interface NSBlock
 779 - (void) invoke;
 780 @end
 781 #endif
 782 /* }}} */
 783 /* Bridge: NSBoolNumber {{{ */
 784 #ifndef __APPLE__
 785 @implementation NSBoolNumber (Cycript)
 786
 787 - (JSType) cy$JSType {
 788     return kJSTypeBoolean;
 789 }
 790
 791 - (NSObject *) cy$toJSON:(NSString *)key {
 792     return self;
 793 }
 794
 795 - (NSString *) cy$toCYON:(bool)objective {
 796     NSString *value([self boolValue] ? @"true" : @"false");
 797     return objective ? value : [NSString stringWithFormat:@"@%@", value];
 798 }
 799
 800 - (JSValueRef) cy$valueOfInContext:(JSContextRef)context { CYObjectiveTry_(context) {
 801     return CYCastJSValue(context, (bool) [self boolValue]);
 802 } CYObjectiveCatch }
 803
 804 @end
 805 #endif
 806 /* }}} */
 807 /* Bridge: NSDictionary {{{ */
 808 @implementation NSDictionary (Cycript)
 809
 810 - (id) cy$box {
 811     return [[self mutableCopy] autorelease];
 812 }
 813
 814 - (NSString *) cy$toCYON:(bool)objective {
 815     NSMutableString *json([[[NSMutableString alloc] init] autorelease]);
 816     [json appendString:@"@{"];
 817
 818     bool comma(false);
 819 #ifdef __APPLE__
 820     for (NSObject *key in self) {
 821 #else
 822     NSEnumerator *keys([self keyEnumerator]);
 823     while (NSObject *key = [keys nextObject]) {
 824 #endif
 825         if (comma)
 826             [json appendString:@","];
 827         else
 828             comma = true;
 829         [json appendString:CYCastNSCYON(key, true)];
 830         [json appendString:@":"];
 831         NSObject *object([self objectForKey:key]);
 832         [json appendString:CYCastNSCYON(object, true)];
 833     }
 834
 835     [json appendString:@"}"];
 836     return json;
 837 }
 838
 839 - (bool) cy$hasProperty:(NSString *)name {
 840     return [self objectForKey:name] != nil;
 841 }
 842
 843 - (NSObject *) cy$getProperty:(NSString *)name {
 844     return [self objectForKey:name];
 845 }
 846
 847 - (void) cy$getPropertyNames:(JSPropertyNameAccumulatorRef)names inContext:(JSContextRef)context {
 848     [super cy$getPropertyNames:names inContext:context];
 849
 850 #ifdef __APPLE__
 851     for (NSObject *key in self) {
 852 #else
 853     NSEnumerator *keys([self keyEnumerator]);
 854     while (NSObject *key = [keys nextObject]) {
 855 #endif
 856         JSPropertyNameAccumulatorAddName(names, CYJSString(context, key));
 857     }
 858 }
 859
 860 + (bool) cy$hasImplicitProperties {
 861     return false;
 862 }
 863
 864 @end
 865 /* }}} */
 866 /* Bridge: NSMutableArray {{{ */
 867 @implementation NSMutableArray (Cycript)
 868
 869 - (bool) cy$setProperty:(NSString *)name to:(NSObject *)value {
 870     if ([name isEqualToString:@"length"]) {
 871         // XXX: is this not intelligent?
 872         NSNumber *number(reinterpret_cast<NSNumber *>(value));
 873 #ifdef __APPLE__
 874         NSUInteger size([number unsignedIntegerValue]);
 875 #else
 876         NSUInteger size([number unsignedIntValue]);
 877 #endif
 878         NSUInteger count([self count]);
 879         if (size < count)
 880             [self removeObjectsInRange:NSMakeRange(size, count - size)];
 881         else if (size != count) {
 882             WebUndefined *undefined([WebUndefined undefined]);
 883             for (size_t i(count); i != size; ++i)
 884                 [self addObject:undefined];
 885         }
 886         return true;
 887     }
 888
 889     size_t index(CYGetIndex(name));
 890     if (index == _not(size_t))
 891         return [super cy$setProperty:name to:value];
 892
 893     id object(value ?: [NSNull null]);
 894
 895     size_t count([self count]);
 896     if (index < count)
 897         [self replaceObjectAtIndex:index withObject:object];
 898     else {
 899         if (index != count) {
 900             WebUndefined *undefined([WebUndefined undefined]);
 901             for (size_t i(count); i != index; ++i)
 902                 [self addObject:undefined];
 903         }
 904
 905         [self addObject:object];
 906     }
 907
 908     return true;
 909 }
 910
 911 - (bool) cy$deleteProperty:(NSString *)name {
 912     size_t index(CYGetIndex(name));
 913     if (index == _not(size_t) || index >= [self count])
 914         return [super cy$deleteProperty:name];
 915     [self replaceObjectAtIndex:index withObject:[WebUndefined undefined]];
 916     return true;
 917 }
 918
 919 @end
 920 /* }}} */
 921 /* Bridge: NSMutableDictionary {{{ */
 922 @implementation NSMutableDictionary (Cycript)
 923
 924 - (bool) cy$setProperty:(NSString *)name to:(NSObject *)value {
 925     [self setObject:(value ?: [NSNull null]) forKey:name];
 926     return true;
 927 }
 928
 929 - (bool) cy$deleteProperty:(NSString *)name {
 930     if ([self objectForKey:name] == nil)
 931         return false;
 932     else {
 933         [self removeObjectForKey:name];
 934         return true;
 935     }
 936 }
 937
 938 @end
 939 /* }}} */
 940 /* Bridge: NSNumber {{{ */
 941 @implementation NSNumber (Cycript)
 942
 943 - (JSType) cy$JSType {
 944 #ifdef __APPLE__
 945     // XXX: this just seems stupid
 946     if ([self class] == NSCFBoolean_)
 947         return kJSTypeBoolean;
 948 #endif
 949     return kJSTypeNumber;
 950 }
 951
 952 - (NSObject *) cy$toJSON:(NSString *)key {
 953     return self;
 954 }
 955
 956 - (NSString *) cy$toCYON:(bool)objective {
 957     NSString *value([self cy$JSType] != kJSTypeBoolean ? [self stringValue] : [self boolValue] ? @"true" : @"false");
 958     return objective ? value : [NSString stringWithFormat:@"@%@", value];
 959 }
 960
 961 - (JSValueRef) cy$valueOfInContext:(JSContextRef)context { CYObjectiveTry_(context) {
 962     return [self cy$JSType] != kJSTypeBoolean ? CYCastJSValue(context, [self doubleValue]) : CYCastJSValue(context, static_cast<bool>([self boolValue]));
 963 } CYObjectiveCatch }
 964
 965 @end
 966 /* }}} */
 967 /* Bridge: NSNull {{{ */
 968 @implementation NSNull (Cycript)
 969
 970 - (JSType) cy$JSType {
 971     return kJSTypeNull;
 972 }
 973
 974 - (NSObject *) cy$toJSON:(NSString *)key {
 975     return self;
 976 }
 977
 978 - (NSString *) cy$toCYON:(bool)objective {
 979     NSString *value(@"null");
 980     return objective ? value : [NSString stringWithFormat:@"@%@", value];
 981 }
 982
 983 @end
 984 /* }}} */
 985 /* Bridge: NSObject {{{ */
 986 @implementation NSObject (Cycript)
 987
 988 - (id) cy$box {
 989     return self;
 990 }
 991
 992 - (JSValueRef) cy$valueOfInContext:(JSContextRef)context { CYObjectiveTry_(context) {
 993     return NULL;
 994 } CYObjectiveCatch }
 995
 996 - (JSType) cy$JSType {
 997     return kJSTypeObject;
 998 }
 999
1000 - (NSObject *) cy$toJSON:(NSString *)key {
1001     return [self description];
1002 }
1003
1004 - (NSString *) cy$toCYON:(bool)objective {
1005     return [[self cy$toJSON:@""] cy$toCYON:objective];
1006 }
1007
1008 - (bool) cy$hasProperty:(NSString *)name {
1009     return false;
1010 }
1011
1012 - (NSObject *) cy$getProperty:(NSString *)name {
1013     return nil;
1014 }
1015
1016 - (bool) cy$setProperty:(NSString *)name to:(NSObject *)value {
1017     return false;
1018 }
1019
1020 - (bool) cy$deleteProperty:(NSString *)name {
1021     return false;
1022 }
1023
1024 - (void) cy$getPropertyNames:(JSPropertyNameAccumulatorRef)names inContext:(JSContextRef)context {
1025 }
1026
1027 + (bool) cy$hasImplicitProperties {
1028     return true;
1029 }
1030
1031 @end
1032 /* }}} */
1033 /* Bridge: NSProxy {{{ */
1034 @implementation NSProxy (Cycript)
1035
1036 - (NSObject *) cy$toJSON:(NSString *)key {
1037     return [self description];
1038 }
1039
1040 - (NSString *) cy$toCYON:(bool)objective {
1041     return [[self cy$toJSON:@""] cy$toCYON:objective];
1042 }
1043
1044 @end
1045 /* }}} */
1046 /* Bridge: NSString {{{ */
1047 @implementation NSString (Cycript)
1048
1049 - (id) cy$box {
1050     return [[self copy] autorelease];
1051 }
1052
1053 - (JSType) cy$JSType {
1054     return kJSTypeString;
1055 }
1056
1057 - (NSObject *) cy$toJSON:(NSString *)key {
1058     return self;
1059 }
1060
1061 - (NSString *) cy$toCYON:(bool)objective {
1062     std::ostringstream str;
1063     if (!objective)
1064         str << '@';
1065     CYUTF8String string(CYCastUTF8String(self));
1066     CYStringify(str, string.data, string.size);
1067     std::string value(str.str());
1068     return CYCastNSString(NULL, CYUTF8String(value.c_str(), value.size()));
1069 }
1070
1071 - (bool) cy$hasProperty:(NSString *)name {
1072     if ([name isEqualToString:@"length"])
1073         return true;
1074
1075     size_t index(CYGetIndex(name));
1076     if (index == _not(size_t) || index >= [self length])
1077         return [super cy$hasProperty:name];
1078     else
1079         return true;
1080 }
1081
1082 - (NSObject *) cy$getProperty:(NSString *)name {
1083     if ([name isEqualToString:@"length"]) {
1084         NSUInteger count([self length]);
1085 #ifdef __APPLE__
1086         return [NSNumber numberWithUnsignedInteger:count];
1087 #else
1088         return [NSNumber numberWithUnsignedInt:count];
1089 #endif
1090     }
1091
1092     size_t index(CYGetIndex(name));
1093     if (index == _not(size_t) || index >= [self length])
1094         return [super cy$getProperty:name];
1095     else
1096         return [self substringWithRange:NSMakeRange(index, 1)];
1097 }
1098
1099 - (void) cy$getPropertyNames:(JSPropertyNameAccumulatorRef)names inContext:(JSContextRef)context {
1100     [super cy$getPropertyNames:names inContext:context];
1101
1102     for (size_t index(0), length([self length]); index != length; ++index) {
1103         char name[32];
1104         sprintf(name, "%zu", index);
1105         JSPropertyNameAccumulatorAddName(names, CYJSString(name));
1106     }
1107 }
1108
1109 // XXX: this might be overly restrictive for NSString; I think I need a half-way between /injecting/ implicit properties and /accepting/ implicit properties
1110 + (bool) cy$hasImplicitProperties {
1111     return false;
1112 }
1113
1114 - (JSValueRef) cy$valueOfInContext:(JSContextRef)context { CYObjectiveTry_(context) {
1115     return CYCastJSValue(context, CYJSString(context, self));
1116 } CYObjectiveCatch }
1117
1118 @end
1119 /* }}} */
1120 /* Bridge: WebUndefined {{{ */
1121 @implementation WebUndefined (Cycript)
1122
1123 - (JSType) cy$JSType {
1124     return kJSTypeUndefined;
1125 }
1126
1127 - (NSObject *) cy$toJSON:(NSString *)key {
1128     return self;
1129 }
1130
1131 - (NSString *) cy$toCYON {
1132     NSString *value(@"undefined");
1133     return value; // XXX: maybe use the below code, adding @undefined?
1134     //return objective ? value : [NSString stringWithFormat:@"@%@", value];
1135 }
1136
1137 - (JSValueRef) cy$valueOfInContext:(JSContextRef)context { CYObjectiveTry_(context) {
1138     return CYJSUndefined(context);
1139 } CYObjectiveCatch }
1140
1141 @end
1142 /* }}} */
1143
1144 static bool CYIsClass(id self) {
1145 #ifdef __APPLE__
1146     // XXX: this is a lame object_isClass
1147     return class_getInstanceMethod(object_getClass(self), @selector(alloc)) != NULL;
1148 #else
1149     return GSObjCIsClass(self);
1150 #endif
1151 }
1152
1153 Class CYCastClass(apr_pool_t *pool, JSContextRef context, JSValueRef value) {
1154     id self(CYCastNSObject(pool, context, value));
1155     if (CYIsClass(self))
1156         return (Class) self;
1157     throw CYJSError(context, "got something that is not a Class");
1158     return NULL;
1159 }
1160
1161 NSArray *CYCastNSArray(JSContextRef context, JSPropertyNameArrayRef names) {
1162     CYPool pool;
1163     size_t size(JSPropertyNameArrayGetCount(names));
1164     NSMutableArray *array([NSMutableArray arrayWithCapacity:size]);
1165     for (size_t index(0); index != size; ++index)
1166         [array addObject:CYCastNSString(pool, context, JSPropertyNameArrayGetNameAtIndex(names, index))];
1167     return array;
1168 }
1169
1170 JSValueRef CYCastJSValue(JSContextRef context, NSObject *value) { CYPoolTry {
1171     if (value == nil)
1172         return CYJSNull(context);
1173     else
1174         return CYMakeInstance(context, value, false);
1175 } CYPoolCatch(NULL) return /*XXX*/ NULL; }
1176
1177 @implementation CYJSObject
1178
1179 - (id) initWithJSObject:(JSObjectRef)object inContext:(JSContextRef)context { CYObjectiveTry {
1180     if ((self = [super init]) != nil) {
1181         object_ = object;
1182         context_ = CYGetJSContext(context);
1183         JSGlobalContextRetain(context_);
1184         JSValueProtect(context_, object_);
1185     } return self;
1186 } CYObjectiveCatch }
1187
1188 - (void) dealloc { CYObjectiveTry {
1189     JSValueUnprotect(context_, object_);
1190     JSGlobalContextRelease(context_);
1191     [super dealloc];
1192 } CYObjectiveCatch }
1193
1194 - (NSObject *) cy$toJSON:(NSString *)key { CYObjectiveTry {
1195     JSValueRef toJSON(CYGetProperty(context_, object_, toJSON_s));
1196     if (!CYIsCallable(context_, toJSON))
1197         return [super cy$toJSON:key];
1198     else {
1199         JSValueRef arguments[1] = {CYCastJSValue(context_, key)};
1200         JSValueRef value(CYCallAsFunction(context_, (JSObjectRef) toJSON, object_, 1, arguments));
1201         // XXX: do I really want an NSNull here?!
1202         return CYCastNSObject(NULL, context_, value) ?: [NSNull null];
1203     }
1204 } CYObjectiveCatch }
1205
1206 - (NSString *) cy$toCYON:(bool)objective { CYObjectiveTry {
1207     CYPool pool;
1208     JSValueRef exception(NULL);
1209     const char *cyon(CYPoolCCYON(pool, context_, object_));
1210     CYThrow(context_, exception);
1211     if (cyon == NULL)
1212         return [super cy$toCYON:objective];
1213     else
1214         return [NSString stringWithUTF8String:cyon];
1215 } CYObjectiveCatch }
1216
1217 - (NSUInteger) count { CYObjectiveTry {
1218     JSPropertyNameArrayRef names(JSObjectCopyPropertyNames(context_, object_));
1219     size_t size(JSPropertyNameArrayGetCount(names));
1220     JSPropertyNameArrayRelease(names);
1221     return size;
1222 } CYObjectiveCatch }
1223
1224 - (id) objectForKey:(id)key { CYObjectiveTry {
1225     JSValueRef value(CYGetProperty(context_, object_, CYJSString(context_, (NSObject *) key)));
1226     if (JSValueIsUndefined(context_, value))
1227         return nil;
1228     return CYCastNSObject(NULL, context_, value) ?: [NSNull null];
1229 } CYObjectiveCatch }
1230
1231 - (NSEnumerator *) keyEnumerator { CYObjectiveTry {
1232     JSPropertyNameArrayRef names(JSObjectCopyPropertyNames(context_, object_));
1233     NSEnumerator *enumerator([CYCastNSArray(context_, names) objectEnumerator]);
1234     JSPropertyNameArrayRelease(names);
1235     return enumerator;
1236 } CYObjectiveCatch }
1237
1238 - (void) setObject:(id)object forKey:(id)key { CYObjectiveTry {
1239     CYSetProperty(context_, object_, CYJSString(context_, (NSObject *) key), CYCastJSValue(context_, (NSString *) object));
1240 } CYObjectiveCatch }
1241
1242 - (void) removeObjectForKey:(id)key { CYObjectiveTry {
1243     JSValueRef exception(NULL);
1244     (void) JSObjectDeleteProperty(context_, object_, CYJSString(context_, (NSObject *) key), &exception);
1245     CYThrow(context_, exception);
1246 } CYObjectiveCatch }
1247
1248 @end
1249
1250 @implementation CYJSArray
1251
1252 - (NSString *) cy$toCYON:(bool)objective {
1253     CYPool pool;
1254     return [NSString stringWithUTF8String:CYPoolCCYON(pool, context_, object_)];
1255 }
1256
1257 - (id) initWithJSObject:(JSObjectRef)object inContext:(JSContextRef)context { CYObjectiveTry {
1258     if ((self = [super init]) != nil) {
1259         object_ = object;
1260         context_ = CYGetJSContext(context);
1261         JSGlobalContextRetain(context_);
1262         JSValueProtect(context_, object_);
1263     } return self;
1264 } CYObjectiveCatch }
1265
1266 - (void) dealloc { CYObjectiveTry {
1267     JSValueUnprotect(context_, object_);
1268     JSGlobalContextRelease(context_);
1269     [super dealloc];
1270 } CYObjectiveCatch }
1271
1272 - (NSUInteger) count { CYObjectiveTry {
1273     return CYArrayLength(context_, object_);
1274 } CYObjectiveCatch }
1275
1276 - (id) objectAtIndex:(NSUInteger)index { CYObjectiveTry {
1277     size_t bounds([self count]);
1278     if (index >= bounds)
1279         @throw [NSException exceptionWithName:NSRangeException reason:[NSString stringWithFormat:@"*** -[CYJSArray objectAtIndex:]: index (%zu) beyond bounds (%zu)", index, bounds] userInfo:nil];
1280     JSValueRef exception(NULL);
1281     JSValueRef value(JSObjectGetPropertyAtIndex(context_, object_, index, &exception));
1282     CYThrow(context_, exception);
1283     return CYCastNSObject(NULL, context_, value) ?: [NSNull null];
1284 } CYObjectiveCatch }
1285
1286 - (void) addObject:(id)object { CYObjectiveTry {
1287     CYArrayPush(context_, object_, CYCastJSValue(context_, (NSObject *) object));
1288 } CYObjectiveCatch }
1289
1290 - (void) insertObject:(id)object atIndex:(NSUInteger)index { CYObjectiveTry {
1291     size_t bounds([self count] + 1);
1292     if (index >= bounds)
1293         @throw [NSException exceptionWithName:NSRangeException reason:[NSString stringWithFormat:@"*** -[CYJSArray insertObject:atIndex:]: index (%zu) beyond bounds (%zu)", index, bounds] userInfo:nil];
1294     JSValueRef exception(NULL);
1295     JSValueRef arguments[3];
1296     arguments[0] = CYCastJSValue(context_, index);
1297     arguments[1] = CYCastJSValue(context_, 0);
1298     arguments[2] = CYCastJSValue(context_, (NSObject *) object);
1299     JSObjectRef Array(CYGetCachedObject(context_, CYJSString("Array_prototype")));
1300     JSObjectCallAsFunction(context_, CYCastJSObject(context_, CYGetProperty(context_, Array, splice_s)), object_, 3, arguments, &exception);
1301     CYThrow(context_, exception);
1302 } CYObjectiveCatch }
1303
1304 - (void) removeLastObject { CYObjectiveTry {
1305     JSValueRef exception(NULL);
1306     JSObjectRef Array(CYGetCachedObject(context_, CYJSString("Array_prototype")));
1307     JSObjectCallAsFunction(context_, CYCastJSObject(context_, CYGetProperty(context_, Array, pop_s)), object_, 0, NULL, &exception);
1308     CYThrow(context_, exception);
1309 } CYObjectiveCatch }
1310
1311 - (void) removeObjectAtIndex:(NSUInteger)index { CYObjectiveTry {
1312     size_t bounds([self count]);
1313     if (index >= bounds)
1314         @throw [NSException exceptionWithName:NSRangeException reason:[NSString stringWithFormat:@"*** -[CYJSArray removeObjectAtIndex:]: index (%zu) beyond bounds (%zu)", index, bounds] userInfo:nil];
1315     JSValueRef exception(NULL);
1316     JSValueRef arguments[2];
1317     arguments[0] = CYCastJSValue(context_, index);
1318     arguments[1] = CYCastJSValue(context_, 1);
1319     JSObjectRef Array(CYGetCachedObject(context_, CYJSString("Array_prototype")));
1320     JSObjectCallAsFunction(context_, CYCastJSObject(context_, CYGetProperty(context_, Array, splice_s)), object_, 2, arguments, &exception);
1321     CYThrow(context_, exception);
1322 } CYObjectiveCatch }
1323
1324 - (void) replaceObjectAtIndex:(NSUInteger)index withObject:(id)object { CYObjectiveTry {
1325     size_t bounds([self count]);
1326     if (index >= bounds)
1327         @throw [NSException exceptionWithName:NSRangeException reason:[NSString stringWithFormat:@"*** -[CYJSArray replaceObjectAtIndex:withObject:]: index (%zu) beyond bounds (%zu)", index, bounds] userInfo:nil];
1328     CYSetProperty(context_, object_, index, CYCastJSValue(context_, (NSObject *) object));
1329 } CYObjectiveCatch }
1330
1331 @end
1332
1333 // XXX: inherit from or replace with CYJSObject
1334 @interface CYInternal : NSObject {
1335     JSGlobalContextRef context_;
1336     JSObjectRef object_;
1337 }
1338
1339 @end
1340
1341 @implementation CYInternal
1342
1343 - (void) dealloc {
1344     JSValueUnprotect(context_, object_);
1345     JSGlobalContextRelease(context_);
1346     [super dealloc];
1347 }
1348
1349 - (id) initInContext:(JSContextRef)context {
1350     if ((self = [super init]) != nil) {
1351         context_ = CYGetJSContext(context);
1352         JSGlobalContextRetain(context_);
1353     } return self;
1354 }
1355
1356 - (bool) hasProperty:(JSStringRef)name inContext:(JSContextRef)context {
1357     if (object_ == NULL)
1358         return false;
1359
1360     return JSObjectHasProperty(context, object_, name);
1361 }
1362
1363 - (JSValueRef) getProperty:(JSStringRef)name inContext:(JSContextRef)context {
1364     if (object_ == NULL)
1365         return NULL;
1366
1367     return CYGetProperty(context, object_, name);
1368 }
1369
1370 - (void) setProperty:(JSStringRef)name toValue:(JSValueRef)value inContext:(JSContextRef)context {
1371     @synchronized (self) {
1372         if (object_ == NULL) {
1373             object_ = JSObjectMake(context, NULL, NULL);
1374             JSValueProtect(context, object_);
1375         }
1376     }
1377
1378     CYSetProperty(context, object_, name, value);
1379 }
1380
1381 + (CYInternal *) get:(id)object {
1382     if ($objc_getAssociatedObject == NULL)
1383         return nil;
1384
1385     @synchronized (object) {
1386         if (CYInternal *internal = $objc_getAssociatedObject(object, @selector(cy$internal)))
1387             return internal;
1388     }
1389
1390     return nil;
1391 }
1392
1393 + (CYInternal *) set:(id)object inContext:(JSContextRef)context {
1394     if ($objc_getAssociatedObject == NULL)
1395         return nil;
1396
1397     @synchronized (object) {
1398         if (CYInternal *internal = $objc_getAssociatedObject(object, @selector(cy$internal)))
1399             return internal;
1400
1401         if ($objc_setAssociatedObject == NULL)
1402             return nil;
1403
1404         CYInternal *internal([[[CYInternal alloc] initInContext:context] autorelease]);
1405         objc_setAssociatedObject(object, @selector(cy$internal), internal, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
1406         return internal;
1407     }
1408
1409     return nil;
1410 }
1411
1412 @end
1413
1414 static JSObjectRef CYMakeSelector(JSContextRef context, SEL sel) {
1415     Selector_privateData *internal(new Selector_privateData(sel));
1416     return JSObjectMake(context, Selector_, internal);
1417 }
1418
1419 static SEL CYCastSEL(JSContextRef context, JSValueRef value) {
1420     if (JSValueIsObjectOfClass(context, value, Selector_)) {
1421         Selector_privateData *internal(reinterpret_cast<Selector_privateData *>(JSObjectGetPrivate((JSObjectRef) value)));
1422         return reinterpret_cast<SEL>(internal->value_);
1423     } else
1424         return CYCastPointer<SEL>(context, value);
1425 }
1426
1427 void *CYObjectiveC_ExecuteStart(JSContextRef context) { CYSadTry {
1428     return (void *) [[NSAutoreleasePool alloc] init];
1429 } CYSadCatch(NULL) }
1430
1431 void CYObjectiveC_ExecuteEnd(JSContextRef context, void *handle) { CYSadTry {
1432     return [(NSAutoreleasePool *) handle release];
1433 } CYSadCatch() }
1434
1435 JSValueRef CYObjectiveC_RuntimeProperty(JSContextRef context, CYUTF8String name) { CYPoolTry {
1436     if (name == "nil")
1437         return Instance::Make(context, nil);
1438     if (Class _class = objc_getClass(name.data))
1439         return CYMakeInstance(context, _class, true);
1440     if (Protocol *protocol = objc_getProtocol(name.data))
1441         return CYMakeInstance(context, protocol, true);
1442     return NULL;
1443 } CYPoolCatch(NULL) return /*XXX*/ NULL; }
1444
1445 static void CYObjectiveC_CallFunction(JSContextRef context, ffi_cif *cif, void (*function)(), uint8_t *value, void **values) { CYSadTry {
1446     ffi_call(cif, function, value, values);
1447 } CYSadCatch() }
1448
1449 static bool CYObjectiveC_PoolFFI(apr_pool_t *pool, JSContextRef context, sig::Type *type, ffi_type *ffi, void *data, JSValueRef value) { CYSadTry {
1450     switch (type->primitive) {
1451         // XXX: do something epic about blocks
1452         case sig::block_P:
1453         case sig::object_P:
1454         case sig::typename_P:
1455             *reinterpret_cast<id *>(data) = CYCastNSObject(pool, context, value);
1456         break;
1457
1458         case sig::selector_P:
1459             *reinterpret_cast<SEL *>(data) = CYCastSEL(context, value);
1460         break;
1461
1462         default:
1463             return false;
1464     }
1465
1466     return true;
1467 } CYSadCatch(false) }
1468
1469 static JSValueRef CYObjectiveC_FromFFI(JSContextRef context, sig::Type *type, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) { CYPoolTry {
1470     switch (type->primitive) {
1471         // XXX: do something epic about blocks
1472         case sig::block_P:
1473         case sig::object_P:
1474             if (NSObject *object = *reinterpret_cast<NSObject **>(data)) {
1475                 JSValueRef value(CYCastJSValue(context, object));
1476                 if (initialize)
1477                     [object release];
1478                 return value;
1479             } else goto null;
1480
1481         case sig::typename_P:
1482             return CYMakeInstance(context, *reinterpret_cast<Class *>(data), true);
1483
1484         case sig::selector_P:
1485             if (SEL sel = *reinterpret_cast<SEL *>(data))
1486                 return CYMakeSelector(context, sel);
1487             else goto null;
1488
1489         null:
1490             return CYJSNull(context);
1491         default:
1492             return NULL;
1493     }
1494 } CYPoolCatch(NULL) return /*XXX*/ NULL; }
1495
1496 static bool CYImplements(id object, Class _class, SEL selector, bool devoid = false) {
1497     if (objc_method *method = class_getInstanceMethod(_class, selector)) {
1498         if (!devoid)
1499             return true;
1500 #if OBJC_API_VERSION >= 2
1501         char type[16];
1502         method_getReturnType(method, type, sizeof(type));
1503 #else
1504         const char *type(method_getTypeEncoding(method));
1505 #endif
1506         if (type[0] != 'v')
1507             return true;
1508     }
1509
1510     // XXX: possibly use a more "awesome" check?
1511     return false;
1512 }
1513
1514 static const char *CYPoolTypeEncoding(apr_pool_t *pool, JSContextRef context, SEL sel, objc_method *method) {
1515     if (method != NULL)
1516         return method_getTypeEncoding(method);
1517
1518     const char *name(sel_getName(sel));
1519     size_t length(strlen(name));
1520
1521     char keyed[length + 2];
1522     keyed[0] = '6';
1523     keyed[length + 1] = '\0';
1524     memcpy(keyed + 1, name, length);
1525
1526     if (CYBridgeEntry *entry = CYBridgeHash(keyed, length + 1))
1527         return entry->value_;
1528
1529     return NULL;
1530 }
1531
1532 static void MessageClosure_(ffi_cif *cif, void *result, void **arguments, void *arg) {
1533     Closure_privateData *internal(reinterpret_cast<Closure_privateData *>(arg));
1534
1535     JSContextRef context(internal->context_);
1536
1537     size_t count(internal->cif_.nargs);
1538     JSValueRef values[count];
1539
1540     for (size_t index(0); index != count; ++index)
1541         values[index] = CYFromFFI(context, internal->signature_.elements[1 + index].type, internal->cif_.arg_types[index], arguments[index]);
1542
1543     JSObjectRef _this(CYCastJSObject(context, values[0]));
1544
1545     JSValueRef value(CYCallAsFunction(context, internal->function_, _this, count - 2, values + 2));
1546     CYPoolFFI(NULL, context, internal->signature_.elements[0].type, internal->cif_.rtype, result, value);
1547 }
1548
1549 static JSObjectRef CYMakeMessage(JSContextRef context, SEL sel, IMP imp, const char *type) {
1550     Message_privateData *internal(new Message_privateData(sel, type, imp));
1551     return JSObjectMake(context, Message_, internal);
1552 }
1553
1554 static IMP CYMakeMessage(JSContextRef context, JSValueRef value, const char *type) {
1555     JSObjectRef function(CYCastJSObject(context, value));
1556     Closure_privateData *internal(CYMakeFunctor_(context, function, type, &MessageClosure_));
1557     // XXX: see notes in Library.cpp about needing to leak
1558     return reinterpret_cast<IMP>(internal->GetValue());
1559 }
1560
1561 static bool Messages_hasProperty(JSContextRef context, JSObjectRef object, JSStringRef property) {
1562     Messages *internal(reinterpret_cast<Messages *>(JSObjectGetPrivate(object)));
1563     Class _class(internal->GetValue());
1564
1565     CYPool pool;
1566     const char *name(CYPoolCString(pool, context, property));
1567
1568     if (SEL sel = sel_getUid(name))
1569         if (class_getInstanceMethod(_class, sel) != NULL)
1570             return true;
1571
1572     return false;
1573 }
1574
1575 static JSValueRef Messages_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) {
1576     Messages *internal(reinterpret_cast<Messages *>(JSObjectGetPrivate(object)));
1577     Class _class(internal->GetValue());
1578
1579     CYPool pool;
1580     const char *name(CYPoolCString(pool, context, property));
1581
1582     if (SEL sel = sel_getUid(name))
1583         if (objc_method *method = class_getInstanceMethod(_class, sel))
1584             return CYMakeMessage(context, sel, method_getImplementation(method), method_getTypeEncoding(method));
1585
1586     return NULL;
1587 }
1588
1589 static bool Messages_setProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef value, JSValueRef *exception) {
1590     Messages *internal(reinterpret_cast<Messages *>(JSObjectGetPrivate(object)));
1591     Class _class(internal->GetValue());
1592
1593     CYPool pool;
1594     const char *name(CYPoolCString(pool, context, property));
1595
1596     SEL sel(sel_registerName(name));
1597
1598     objc_method *method(class_getInstanceMethod(_class, sel));
1599
1600     const char *type;
1601     IMP imp;
1602
1603     if (JSValueIsObjectOfClass(context, value, Message_)) {
1604         Message_privateData *message(reinterpret_cast<Message_privateData *>(JSObjectGetPrivate((JSObjectRef) value)));
1605         type = sig::Unparse(pool, &message->signature_);
1606         imp = reinterpret_cast<IMP>(message->GetValue());
1607     } else {
1608         type = CYPoolTypeEncoding(pool, context, sel, method);
1609         imp = CYMakeMessage(context, value, type);
1610     }
1611
1612     if (method != NULL)
1613         method_setImplementation(method, imp);
1614     else {
1615 #ifdef GNU_RUNTIME
1616         GSMethodList list(GSAllocMethodList(1));
1617         GSAppendMethodToList(list, sel, type, imp, YES);
1618         GSAddMethodList(_class, list, YES);
1619         GSFlushMethodCacheForClass(_class);
1620 #else
1621         class_addMethod(_class, sel, imp, type);
1622 #endif
1623     }
1624
1625     return true;
1626 }
1627
1628 #if 0 && OBJC_API_VERSION < 2
1629 static bool Messages_deleteProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) {
1630     Messages *internal(reinterpret_cast<Messages *>(JSObjectGetPrivate(object)));
1631     Class _class(internal->GetValue());
1632
1633     CYPool pool;
1634     const char *name(CYPoolCString(pool, context, property));
1635
1636     if (SEL sel = sel_getUid(name))
1637         if (objc_method *method = class_getInstanceMethod(_class, sel)) {
1638             objc_method_list list = {NULL, 1, {method}};
1639             class_removeMethods(_class, &list);
1640             return true;
1641         }
1642
1643     return false;
1644 }
1645 #endif
1646
1647 static void Messages_getPropertyNames(JSContextRef context, JSObjectRef object, JSPropertyNameAccumulatorRef names) {
1648     Messages *internal(reinterpret_cast<Messages *>(JSObjectGetPrivate(object)));
1649     Class _class(internal->GetValue());
1650
1651 #if OBJC_API_VERSION >= 2
1652     unsigned int size;
1653     objc_method **data(class_copyMethodList(_class, &size));
1654     for (size_t i(0); i != size; ++i)
1655         JSPropertyNameAccumulatorAddName(names, CYJSString(sel_getName(method_getName(data[i]))));
1656     free(data);
1657 #else
1658     for (objc_method_list *methods(_class->methods); methods != NULL; methods = methods->method_next)
1659         for (int i(0); i != methods->method_count; ++i)
1660             JSPropertyNameAccumulatorAddName(names, CYJSString(sel_getName(method_getName(&methods->method_list[i]))));
1661 #endif
1662 }
1663
1664 static bool CYHasImplicitProperties(Class _class) {
1665     // XXX: this is an evil hack to deal with NSProxy; fix elsewhere
1666     if (!CYImplements(_class, object_getClass(_class), @selector(cy$hasImplicitProperties)))
1667         return true;
1668     return [_class cy$hasImplicitProperties];
1669 }
1670
1671 static bool Instance_hasProperty(JSContextRef context, JSObjectRef object, JSStringRef property) {
1672     Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(object)));
1673     id self(internal->GetValue());
1674
1675     if (JSStringIsEqualToUTF8CString(property, "$cyi"))
1676         return true;
1677
1678     CYPool pool;
1679     NSString *name(CYCastNSString(pool, context, property));
1680
1681     if (CYInternal *internal = [CYInternal get:self])
1682         if ([internal hasProperty:property inContext:context])
1683             return true;
1684
1685     Class _class(object_getClass(self));
1686
1687     CYPoolTry {
1688         // XXX: this is an evil hack to deal with NSProxy; fix elsewhere
1689         if (CYImplements(self, _class, @selector(cy$hasProperty:)))
1690             if ([self cy$hasProperty:name])
1691                 return true;
1692     } CYPoolCatch(false)
1693
1694     const char *string(CYPoolCString(pool, context, name));
1695
1696 #ifdef __APPLE__
1697     if (class_getProperty(_class, string) != NULL)
1698         return true;
1699 #endif
1700
1701     if (CYHasImplicitProperties(_class))
1702         if (SEL sel = sel_getUid(string))
1703             if (CYImplements(self, _class, sel, true))
1704                 return true;
1705
1706     return false;
1707 }
1708
1709 static JSValueRef Instance_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1710     Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(object)));
1711     id self(internal->GetValue());
1712
1713     if (JSStringIsEqualToUTF8CString(property, "$cyi"))
1714         return Internal::Make(context, self, object);
1715
1716     CYPool pool;
1717     NSString *name(CYCastNSString(pool, context, property));
1718
1719     if (CYInternal *internal = [CYInternal get:self])
1720         if (JSValueRef value = [internal getProperty:property inContext:context])
1721             return value;
1722
1723     CYPoolTry {
1724         if (NSObject *data = [self cy$getProperty:name])
1725             return CYCastJSValue(context, data);
1726     } CYPoolCatch(NULL)
1727
1728     const char *string(CYPoolCString(pool, context, name));
1729     Class _class(object_getClass(self));
1730
1731 #ifdef __APPLE__
1732     if (objc_property_t property = class_getProperty(_class, string)) {
1733         PropertyAttributes attributes(property);
1734         SEL sel(sel_registerName(attributes.Getter()));
1735         return CYSendMessage(pool, context, self, NULL, sel, 0, NULL, false, exception);
1736     }
1737 #endif
1738
1739     if (CYHasImplicitProperties(_class))
1740         if (SEL sel = sel_getUid(string))
1741             if (CYImplements(self, _class, sel, true))
1742                 return CYSendMessage(pool, context, self, NULL, sel, 0, NULL, false, exception);
1743
1744     return NULL;
1745 } CYCatch }
1746
1747 static bool Instance_setProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef value, JSValueRef *exception) { CYTry {
1748     Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(object)));
1749     id self(internal->GetValue());
1750
1751     CYPool pool;
1752
1753     NSString *name(CYCastNSString(pool, context, property));
1754     NSObject *data(CYCastNSObject(pool, context, value));
1755
1756     CYPoolTry {
1757         if ([self cy$setProperty:name to:data])
1758             return true;
1759     } CYPoolCatch(NULL)
1760
1761     const char *string(CYPoolCString(pool, context, name));
1762     Class _class(object_getClass(self));
1763
1764 #ifdef __APPLE__
1765     if (objc_property_t property = class_getProperty(_class, string)) {
1766         PropertyAttributes attributes(property);
1767         if (const char *setter = attributes.Setter()) {
1768             SEL sel(sel_registerName(setter));
1769             JSValueRef arguments[1] = {value};
1770             CYSendMessage(pool, context, self, NULL, sel, 1, arguments, false, exception);
1771             return true;
1772         }
1773     }
1774 #endif
1775
1776     size_t length(strlen(string));
1777
1778     char set[length + 5];
1779
1780     set[0] = 's';
1781     set[1] = 'e';
1782     set[2] = 't';
1783
1784     if (string[0] != '\0') {
1785         set[3] = toupper(string[0]);
1786         memcpy(set + 4, string + 1, length - 1);
1787     }
1788
1789     set[length + 3] = ':';
1790     set[length + 4] = '\0';
1791
1792     if (SEL sel = sel_getUid(set))
1793         if (CYImplements(self, _class, sel)) {
1794             JSValueRef arguments[1] = {value};
1795             CYSendMessage(pool, context, self, NULL, sel, 1, arguments, false, exception);
1796             return true;
1797         }
1798
1799     if (CYInternal *internal = [CYInternal set:self inContext:context]) {
1800         [internal setProperty:property toValue:value inContext:context];
1801         return true;
1802     }
1803
1804     return false;
1805 } CYCatch }
1806
1807 static bool Instance_deleteProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1808     Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(object)));
1809     id self(internal->GetValue());
1810
1811     CYPoolTry {
1812         NSString *name(CYCastNSString(NULL, context, property));
1813         return [self cy$deleteProperty:name];
1814     } CYPoolCatch(NULL)
1815 } CYCatch return /*XXX*/ NULL; }
1816
1817 static void Instance_getPropertyNames_message(JSPropertyNameAccumulatorRef names, objc_method *method) {
1818     const char *name(sel_getName(method_getName(method)));
1819     if (strchr(name, ':') != NULL)
1820         return;
1821
1822     const char *type(method_getTypeEncoding(method));
1823     if (type == NULL || *type == '\0' || *type == 'v')
1824         return;
1825
1826     JSPropertyNameAccumulatorAddName(names, CYJSString(name));
1827 }
1828
1829 static void Instance_getPropertyNames(JSContextRef context, JSObjectRef object, JSPropertyNameAccumulatorRef names) {
1830     Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(object)));
1831     id self(internal->GetValue());
1832
1833     CYPool pool;
1834     Class _class(object_getClass(self));
1835
1836 #ifdef __APPLE__
1837     {
1838         unsigned int size;
1839         objc_property_t *data(class_copyPropertyList(_class, &size));
1840         for (size_t i(0); i != size; ++i)
1841             JSPropertyNameAccumulatorAddName(names, CYJSString(property_getName(data[i])));
1842         free(data);
1843     }
1844 #endif
1845
1846     if (CYHasImplicitProperties(_class))
1847         for (Class current(_class); current != nil; current = class_getSuperclass(current)) {
1848 #if OBJC_API_VERSION >= 2
1849             unsigned int size;
1850             objc_method **data(class_copyMethodList(current, &size));
1851             for (size_t i(0); i != size; ++i)
1852                 Instance_getPropertyNames_message(names, data[i]);
1853             free(data);
1854 #else
1855             for (objc_method_list *methods(current->methods); methods != NULL; methods = methods->method_next)
1856                 for (int i(0); i != methods->method_count; ++i)
1857                     Instance_getPropertyNames_message(names, &methods->method_list[i]);
1858 #endif
1859         }
1860
1861     CYPoolTry {
1862         // XXX: this is an evil hack to deal with NSProxy; fix elsewhere
1863         if (CYImplements(self, _class, @selector(cy$getPropertyNames:inContext:)))
1864             [self cy$getPropertyNames:names inContext:context];
1865     } CYPoolCatch()
1866 }
1867
1868 static JSObjectRef Instance_callAsConstructor(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1869     Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(object)));
1870     JSObjectRef value(Instance::Make(context, [internal->GetValue() alloc], Instance::Uninitialized));
1871     return value;
1872 } CYCatch }
1873
1874 static JSValueRef Instance_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1875     Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(object)));
1876     id self(internal->GetValue());
1877
1878     if (![self isKindOfClass:NSBlock_])
1879         CYThrow("non-NSBlock object is not a function");
1880     // XXX: replace above logic with the following assertion
1881     //_assert([self isKindOfClass:NSBlock_]);
1882     // to do this, make it so FunctionInstance_ is the class of blocks
1883     // to do /that/, generalize the various "is exactly Instance_" checks
1884     // then, move Instance_callAsFunction to only be on FunctionInstance
1885
1886     struct BlockDescriptor1 {
1887         unsigned long int reserved;
1888         unsigned long int size;
1889     };
1890
1891     struct BlockDescriptor2 {
1892         void (*copy_helper)(void *dst, void *src);
1893         void (*dispose_helper)(void *src);
1894     };
1895
1896     struct BlockDescriptor3 {
1897         const char *signature;
1898         const char *layout;
1899     };
1900
1901     struct BlockLiteral {
1902         Class isa;
1903         int flags;
1904         int reserved;
1905         void (*invoke)(void *, ...);
1906         void *descriptor;
1907     } *literal = reinterpret_cast<BlockLiteral *>(self);
1908
1909     enum {
1910         BLOCK_DEALLOCATING = 0x0001,
1911         BLOCK_REFCOUNT_MASK = 0xfffe,
1912         BLOCK_NEEDS_FREE = 1 << 24,
1913         BLOCK_HAS_COPY_DISPOSE = 1 << 25,
1914         BLOCK_HAS_CTOR = 1 << 26,
1915         BLOCK_IS_GC = 1 << 27,
1916         BLOCK_IS_GLOBAL = 1 << 28,
1917         BLOCK_HAS_STRET = 1 << 29,
1918         BLOCK_HAS_SIGNATURE = 1 << 30,
1919     };
1920
1921     if ((literal->flags & BLOCK_HAS_SIGNATURE) != 0) {
1922         uint8_t *descriptor(reinterpret_cast<uint8_t *>(literal->descriptor));
1923         descriptor += sizeof(BlockDescriptor1);
1924         if ((literal->flags & BLOCK_HAS_COPY_DISPOSE) != 0)
1925             descriptor += sizeof(BlockDescriptor2);
1926         BlockDescriptor3 *descriptor3(reinterpret_cast<BlockDescriptor3 *>(descriptor));
1927
1928         if (const char *type = descriptor3->signature) {
1929             CYPool pool;
1930
1931             void *setup[1];
1932             setup[0] = &self;
1933
1934             sig::Signature signature;
1935             sig::Parse(pool, &signature, type, &Structor_);
1936
1937             ffi_cif cif;
1938             sig::sig_ffi_cif(pool, &sig::ObjectiveC, &signature, &cif);
1939
1940             void (*function)() = reinterpret_cast<void (*)()>(literal->invoke);
1941             return CYCallFunction(pool, context, 1, setup, count, arguments, false, exception, &signature, &cif, function);
1942         }
1943     }
1944
1945     if (count != 0)
1946         CYThrow("NSBlock without signature field passed arguments");
1947
1948     CYPoolTry {
1949         [self invoke];
1950     } CYPoolCatch(NULL);
1951
1952     return NULL;
1953 } CYCatch }
1954
1955 static bool Instance_hasInstance(JSContextRef context, JSObjectRef constructor, JSValueRef instance, JSValueRef *exception) { CYTry {
1956     Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate((JSObjectRef) constructor)));
1957     Class _class(internal->GetValue());
1958     if (!CYIsClass(_class))
1959         return false;
1960
1961     if (JSValueIsObjectOfClass(context, instance, Instance_)) {
1962         Instance *linternal(reinterpret_cast<Instance *>(JSObjectGetPrivate((JSObjectRef) instance)));
1963         // XXX: this isn't always safe
1964         return [linternal->GetValue() isKindOfClass:_class];
1965     }
1966
1967     return false;
1968 } CYCatch }
1969
1970 static JSValueRef Instance_box_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1971     if (count == 0)
1972         throw CYJSError(context, "incorrect number of arguments to Instance");
1973     CYPool pool;
1974     id value(CYCastNSObject(pool, context, arguments[0]));
1975     if (value == nil)
1976         value = [NSNull null];
1977     return CYCastJSValue(context, [value cy$box]);
1978 } CYCatch }
1979
1980 static bool Internal_hasProperty(JSContextRef context, JSObjectRef object, JSStringRef property) {
1981     Internal *internal(reinterpret_cast<Internal *>(JSObjectGetPrivate(object)));
1982     CYPool pool;
1983
1984     id self(internal->GetValue());
1985     const char *name(CYPoolCString(pool, context, property));
1986
1987     if (object_getInstanceVariable(self, name, NULL) != NULL)
1988         return true;
1989
1990     return false;
1991 }
1992
1993 static JSValueRef Internal_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1994     Internal *internal(reinterpret_cast<Internal *>(JSObjectGetPrivate(object)));
1995     CYPool pool;
1996
1997     id self(internal->GetValue());
1998     const char *name(CYPoolCString(pool, context, property));
1999
2000     if (objc_ivar *ivar = object_getInstanceVariable(self, name, NULL)) {
2001         Type_privateData type(pool, ivar_getTypeEncoding(ivar));
2002         // XXX: if this fails and throws an exception the person we are throwing it to gets the wrong exception
2003         return CYFromFFI(context, type.type_, type.GetFFI(), reinterpret_cast<uint8_t *>(self) + ivar_getOffset(ivar));
2004     }
2005
2006     return NULL;
2007 } CYCatch }
2008
2009 static bool Internal_setProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef value, JSValueRef *exception) { CYTry {
2010     Internal *internal(reinterpret_cast<Internal *>(JSObjectGetPrivate(object)));
2011     CYPool pool;
2012
2013     id self(internal->GetValue());
2014     const char *name(CYPoolCString(pool, context, property));
2015
2016     if (objc_ivar *ivar = object_getInstanceVariable(self, name, NULL)) {
2017         Type_privateData type(pool, ivar_getTypeEncoding(ivar));
2018         CYPoolFFI(pool, context, type.type_, type.GetFFI(), reinterpret_cast<uint8_t *>(self) + ivar_getOffset(ivar), value);
2019         return true;
2020     }
2021
2022     return false;
2023 } CYCatch }
2024
2025 static void Internal_getPropertyNames_(Class _class, JSPropertyNameAccumulatorRef names) {
2026     if (Class super = class_getSuperclass(_class))
2027         Internal_getPropertyNames_(super, names);
2028
2029 #if OBJC_API_VERSION >= 2
2030     unsigned int size;
2031     objc_ivar **data(class_copyIvarList(_class, &size));
2032     for (size_t i(0); i != size; ++i)
2033         JSPropertyNameAccumulatorAddName(names, CYJSString(ivar_getName(data[i])));
2034     free(data);
2035 #else
2036     if (objc_ivar_list *ivars = _class->ivars)
2037         for (int i(0); i != ivars->ivar_count; ++i)
2038             JSPropertyNameAccumulatorAddName(names, CYJSString(ivar_getName(&ivars->ivar_list[i])));
2039 #endif
2040 }
2041
2042 static void Internal_getPropertyNames(JSContextRef context, JSObjectRef object, JSPropertyNameAccumulatorRef names) {
2043     Internal *internal(reinterpret_cast<Internal *>(JSObjectGetPrivate(object)));
2044     CYPool pool;
2045
2046     id self(internal->GetValue());
2047     Class _class(object_getClass(self));
2048
2049     Internal_getPropertyNames_(_class, names);
2050 }
2051
2052 static JSValueRef Internal_callAsFunction_$cya(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
2053     Internal *internal(reinterpret_cast<Internal *>(JSObjectGetPrivate(object)));
2054     return internal->GetOwner();
2055 }
2056
2057 static JSValueRef ObjectiveC_Classes_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
2058     CYPool pool;
2059     NSString *name(CYCastNSString(pool, context, property));
2060     if (Class _class = NSClassFromString(name))
2061         return CYMakeInstance(context, _class, true);
2062     return NULL;
2063 } CYCatch }
2064
2065 static void ObjectiveC_Classes_getPropertyNames(JSContextRef context, JSObjectRef object, JSPropertyNameAccumulatorRef names) {
2066 #ifdef __APPLE__
2067     size_t size(objc_getClassList(NULL, 0));
2068     Class *data(reinterpret_cast<Class *>(malloc(sizeof(Class) * size)));
2069
2070   get:
2071     size_t writ(objc_getClassList(data, size));
2072     if (size < writ) {
2073         size = writ;
2074         if (Class *copy = reinterpret_cast<Class *>(realloc(data, sizeof(Class) * writ))) {
2075             data = copy;
2076             goto get;
2077         } else goto done;
2078     }
2079
2080     for (size_t i(0); i != writ; ++i)
2081         JSPropertyNameAccumulatorAddName(names, CYJSString(class_getName(data[i])));
2082
2083   done:
2084     free(data);
2085 #else
2086     void *state(NULL);
2087     while (Class _class = objc_next_class(&state))
2088         JSPropertyNameAccumulatorAddName(names, CYJSString(class_getName(_class)));
2089 #endif
2090 }
2091
2092 #if OBJC_API_VERSION >= 2
2093 static JSValueRef ObjectiveC_Image_Classes_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
2094     const char *internal(reinterpret_cast<const char *>(JSObjectGetPrivate(object)));
2095
2096     CYPool pool;
2097     const char *name(CYPoolCString(pool, context, property));
2098     unsigned int size;
2099     const char **data(objc_copyClassNamesForImage(internal, &size));
2100     JSValueRef value;
2101     for (size_t i(0); i != size; ++i)
2102         if (strcmp(name, data[i]) == 0) {
2103             if (Class _class = objc_getClass(name)) {
2104                 value = CYMakeInstance(context, _class, true);
2105                 goto free;
2106             } else
2107                 break;
2108         }
2109     value = NULL;
2110   free:
2111     free(data);
2112     return value;
2113 } CYCatch }
2114
2115 static void ObjectiveC_Image_Classes_getPropertyNames(JSContextRef context, JSObjectRef object, JSPropertyNameAccumulatorRef names) {
2116     const char *internal(reinterpret_cast<const char *>(JSObjectGetPrivate(object)));
2117     unsigned int size;
2118     const char **data(objc_copyClassNamesForImage(internal, &size));
2119     for (size_t i(0); i != size; ++i)
2120         JSPropertyNameAccumulatorAddName(names, CYJSString(data[i]));
2121     free(data);
2122 }
2123
2124 static JSValueRef ObjectiveC_Images_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
2125     CYPool pool;
2126     const char *name(CYPoolCString(pool, context, property));
2127     unsigned int size;
2128     const char **data(objc_copyImageNames(&size));
2129     for (size_t i(0); i != size; ++i)
2130         if (strcmp(name, data[i]) == 0) {
2131             name = data[i];
2132             goto free;
2133         }
2134     name = NULL;
2135   free:
2136     free(data);
2137     if (name == NULL)
2138         return NULL;
2139     JSObjectRef value(JSObjectMake(context, NULL, NULL));
2140     CYSetProperty(context, value, CYJSString("classes"), JSObjectMake(context, ObjectiveC_Image_Classes_, const_cast<char *>(name)));
2141     return value;
2142 } CYCatch }
2143
2144 static void ObjectiveC_Images_getPropertyNames(JSContextRef context, JSObjectRef object, JSPropertyNameAccumulatorRef names) {
2145     unsigned int size;
2146     const char **data(objc_copyImageNames(&size));
2147     for (size_t i(0); i != size; ++i)
2148         JSPropertyNameAccumulatorAddName(names, CYJSString(data[i]));
2149     free(data);
2150 }
2151 #endif
2152
2153 static JSValueRef ObjectiveC_Protocols_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
2154     CYPool pool;
2155     const char *name(CYPoolCString(pool, context, property));
2156     if (Protocol *protocol = objc_getProtocol(name))
2157         return CYMakeInstance(context, protocol, true);
2158     return NULL;
2159 } CYCatch }
2160
2161 static void ObjectiveC_Protocols_getPropertyNames(JSContextRef context, JSObjectRef object, JSPropertyNameAccumulatorRef names) {
2162 #if OBJC_API_VERSION >= 2
2163     unsigned int size;
2164     Protocol **data(objc_copyProtocolList(&size));
2165     for (size_t i(0); i != size; ++i)
2166         JSPropertyNameAccumulatorAddName(names, CYJSString(protocol_getName(data[i])));
2167     free(data);
2168 #else
2169     // XXX: fix this!
2170 #endif
2171 }
2172
2173 static JSValueRef ObjectiveC_Constants_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
2174     CYPool pool;
2175     CYUTF8String name(CYPoolUTF8String(pool, context, property));
2176     if (name == "nil")
2177         return Instance::Make(context, nil);
2178     return NULL;
2179 } CYCatch }
2180
2181 static void ObjectiveC_Constants_getPropertyNames(JSContextRef context, JSObjectRef object, JSPropertyNameAccumulatorRef names) {
2182     JSPropertyNameAccumulatorAddName(names, CYJSString("nil"));
2183 }
2184
2185 #ifdef __APPLE__
2186 static bool stret(ffi_type *ffi_type) {
2187     return ffi_type->type == FFI_TYPE_STRUCT && (
2188         ffi_type->size > OBJC_MAX_STRUCT_BY_VALUE ||
2189         struct_forward_array[ffi_type->size] != 0
2190     );
2191 }
2192 #endif
2193
2194 JSValueRef CYSendMessage(apr_pool_t *pool, JSContextRef context, id self, Class _class, SEL _cmd, size_t count, const JSValueRef arguments[], bool initialize, JSValueRef *exception) { CYTry {
2195     const char *type;
2196
2197     if (_class == NULL)
2198         _class = object_getClass(self);
2199
2200     IMP imp;
2201
2202     if (objc_method *method = class_getInstanceMethod(_class, _cmd)) {
2203         imp = method_getImplementation(method);
2204         type = method_getTypeEncoding(method);
2205     } else {
2206         imp = NULL;
2207
2208         CYPoolTry {
2209             NSMethodSignature *method([self methodSignatureForSelector:_cmd]);
2210             if (method == nil)
2211                 throw CYJSError(context, "unrecognized selector %s sent to object %p", sel_getName(_cmd), self);
2212             type = CYPoolCString(pool, context, [method _typeString]);
2213         } CYPoolCatch(NULL)
2214     }
2215
2216     void *setup[2];
2217     setup[0] = &self;
2218     setup[1] = &_cmd;
2219
2220     sig::Signature signature;
2221     sig::Parse(pool, &signature, type, &Structor_);
2222
2223     size_t used(count + 3);
2224     if (used > signature.count) {
2225         sig::Element *elements(new (pool) sig::Element[used]);
2226         memcpy(elements, signature.elements, used * sizeof(sig::Element));
2227
2228         for (size_t index(signature.count); index != used; ++index) {
2229             sig::Element *element(&elements[index]);
2230             element->name = NULL;
2231             element->offset = _not(size_t);
2232
2233             sig::Type *type(new (pool) sig::Type);
2234             memset(type, 0, sizeof(*type));
2235             type->primitive = sig::object_P;
2236             element->type = type;
2237         }
2238
2239         signature.elements = elements;
2240         signature.count = used;
2241     }
2242
2243     ffi_cif cif;
2244     sig::sig_ffi_cif(pool, &sig::ObjectiveC, &signature, &cif);
2245
2246     if (imp == NULL) {
2247 #ifdef __APPLE__
2248         if (stret(cif.rtype))
2249             imp = class_getMethodImplementation_stret(_class, _cmd);
2250         else
2251             imp = class_getMethodImplementation(_class, _cmd);
2252 #else
2253         objc_super super = {self, _class};
2254         imp = objc_msg_lookup_super(&super, _cmd);
2255 #endif
2256     }
2257
2258     void (*function)() = reinterpret_cast<void (*)()>(imp);
2259     return CYCallFunction(pool, context, 2, setup, count, arguments, initialize, exception, &signature, &cif, function);
2260 } CYCatch }
2261
2262 static JSValueRef $objc_msgSend(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
2263     if (count < 2)
2264         throw CYJSError(context, "too few arguments to objc_msgSend");
2265
2266     CYPool pool;
2267
2268     bool uninitialized;
2269
2270     id self;
2271     SEL _cmd;
2272     Class _class;
2273
2274     if (JSValueIsObjectOfClass(context, arguments[0], Super_)) {
2275         cy::Super *internal(reinterpret_cast<cy::Super *>(JSObjectGetPrivate((JSObjectRef) arguments[0])));
2276         self = internal->GetValue();
2277         _class = internal->class_;;
2278         uninitialized = false;
2279     } else if (JSValueIsObjectOfClass(context, arguments[0], Instance_)) {
2280         Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate((JSObjectRef) arguments[0])));
2281         self = internal->GetValue();
2282         _class = nil;
2283         uninitialized = internal->IsUninitialized();
2284         if (uninitialized)
2285             internal->value_ = nil;
2286     } else {
2287         self = CYCastNSObject(pool, context, arguments[0]);
2288         _class = nil;
2289         uninitialized = false;
2290     }
2291
2292     if (self == nil)
2293         return CYJSNull(context);
2294
2295     _cmd = CYCastSEL(context, arguments[1]);
2296
2297     return CYSendMessage(pool, context, self, _class, _cmd, count - 2, arguments + 2, uninitialized, exception);
2298 } CYCatch }
2299
2300 static JSValueRef Selector_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
2301     JSValueRef setup[count + 2];
2302     setup[0] = _this;
2303     setup[1] = object;
2304     memcpy(setup + 2, arguments, sizeof(JSValueRef) * count);
2305     return $objc_msgSend(context, NULL, NULL, count + 2, setup, exception);
2306 }
2307
2308 static JSValueRef Message_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
2309     CYPool pool;
2310     Message_privateData *internal(reinterpret_cast<Message_privateData *>(JSObjectGetPrivate(object)));
2311
2312     // XXX: handle Instance::Uninitialized?
2313     id self(CYCastNSObject(pool, context, _this));
2314
2315     void *setup[2];
2316     setup[0] = &self;
2317     setup[1] = &internal->sel_;
2318
2319     return CYCallFunction(pool, context, 2, setup, count, arguments, false, exception, &internal->signature_, &internal->cif_, internal->GetValue());
2320 }
2321
2322 static JSObjectRef Super_new(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
2323     if (count != 2)
2324         throw CYJSError(context, "incorrect number of arguments to Super constructor");
2325     CYPool pool;
2326     id self(CYCastNSObject(pool, context, arguments[0]));
2327     Class _class(CYCastClass(pool, context, arguments[1]));
2328     return cy::Super::Make(context, self, _class);
2329 } CYCatch }
2330
2331 static JSObjectRef Selector_new(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
2332     if (count != 1)
2333         throw CYJSError(context, "incorrect number of arguments to Selector constructor");
2334     CYPool pool;
2335     const char *name(CYPoolCString(pool, context, arguments[0]));
2336     return CYMakeSelector(context, sel_registerName(name));
2337 } CYCatch }
2338
2339 static JSObjectRef Instance_new(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
2340     if (count > 1)
2341         throw CYJSError(context, "incorrect number of arguments to Instance constructor");
2342     id self(count == 0 ? nil : CYCastPointer<id>(context, arguments[0]));
2343     return CYMakeInstance(context, self, false);
2344 } CYCatch }
2345
2346 static JSValueRef CYValue_getProperty_value(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) {
2347     CYValue *internal(reinterpret_cast<CYValue *>(JSObjectGetPrivate(object)));
2348     return CYCastJSValue(context, reinterpret_cast<uintptr_t>(internal->value_));
2349 }
2350
2351 static JSValueRef CYValue_callAsFunction_$cya(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
2352     CYValue *internal(reinterpret_cast<CYValue *>(JSObjectGetPrivate(_this)));
2353     Type_privateData *typical(internal->GetType());
2354
2355     sig::Type *type;
2356     ffi_type *ffi;
2357
2358     if (typical == NULL) {
2359         type = NULL;
2360         ffi = NULL;
2361     } else {
2362         type = typical->type_;
2363         ffi = typical->ffi_;
2364     }
2365
2366     return CYMakePointer(context, &internal->value_, _not(size_t), type, ffi, object);
2367 }
2368
2369 static JSValueRef Instance_getProperty_constructor(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) {
2370     Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(object)));
2371     return Instance::Make(context, (id) object_getClass(internal->GetValue()));
2372 }
2373
2374 static JSValueRef Instance_getProperty_prototype(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
2375     Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(object)));
2376     id self(internal->GetValue());
2377     if (!CYIsClass(self))
2378         return CYJSUndefined(context);
2379     return CYGetClassPrototype(context, self);
2380 } CYCatch }
2381
2382 static JSValueRef Instance_getProperty_messages(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) {
2383     Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(object)));
2384     id self(internal->GetValue());
2385     if (!CYIsClass(self))
2386         return CYJSUndefined(context);
2387     return Messages::Make(context, (Class) self);
2388 }
2389
2390 static JSValueRef Instance_callAsFunction_toCYON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
2391     if (!JSValueIsObjectOfClass(context, _this, Instance_))
2392         return NULL;
2393
2394     Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(_this)));
2395     return CYCastJSValue(context, CYJSString(context, CYCastNSCYON(internal->GetValue(), false)));
2396 } CYCatch }
2397
2398 static JSValueRef Instance_callAsFunction_toJSON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
2399     if (!JSValueIsObjectOfClass(context, _this, Instance_))
2400         return NULL;
2401
2402     Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(_this)));
2403
2404     CYPoolTry {
2405         NSString *key;
2406         if (count == 0)
2407             key = nil;
2408         else
2409             key = CYCastNSString(NULL, context, CYJSString(context, arguments[0]));
2410         // XXX: check for support of cy$toJSON?
2411         return CYCastJSValue(context, CYJSString(context, [internal->GetValue() cy$toJSON:key]));
2412     } CYPoolCatch(NULL)
2413 } CYCatch return /*XXX*/ NULL; }
2414
2415 static JSValueRef Instance_callAsFunction_valueOf(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
2416     if (!JSValueIsObjectOfClass(context, _this, Instance_))
2417         return NULL;
2418
2419     Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(_this)));
2420     id value(internal->GetValue());
2421
2422     if (![value respondsToSelector:@selector(cy$valueOfInContext:)])
2423         return _this;
2424
2425     if (JSValueRef result = [value cy$valueOfInContext:context])
2426         return result;
2427
2428     return _this;
2429 } CYCatch return /*XXX*/ NULL; }
2430
2431 static JSValueRef Instance_callAsFunction_toPointer(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
2432     if (!JSValueIsObjectOfClass(context, _this, Instance_))
2433         return NULL;
2434
2435     Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(_this)));
2436     // XXX: but... but... THIS ISN'T A POINTER! :(
2437     return CYCastJSValue(context, reinterpret_cast<uintptr_t>(internal->GetValue()));
2438 } CYCatch return /*XXX*/ NULL; }
2439
2440 static JSValueRef Instance_callAsFunction_toString(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
2441     if (!JSValueIsObjectOfClass(context, _this, Instance_))
2442         return NULL;
2443
2444     Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(_this)));
2445     id value(internal->GetValue());
2446
2447     if (value == nil)
2448         return CYCastJSValue(context, "nil");
2449
2450     CYPoolTry {
2451         // XXX: this seems like a stupid implementation; what if it crashes? why not use the CYONifier backend?
2452         return CYCastJSValue(context, CYJSString(context, [value description]));
2453     } CYPoolCatch(NULL)
2454 } CYCatch return /*XXX*/ NULL; }
2455
2456 static JSValueRef Selector_callAsFunction_toString(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
2457     Selector_privateData *internal(reinterpret_cast<Selector_privateData *>(JSObjectGetPrivate(_this)));
2458     return CYCastJSValue(context, sel_getName(internal->GetValue()));
2459 } CYCatch }
2460
2461 static JSValueRef Selector_callAsFunction_toJSON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
2462     return Selector_callAsFunction_toString(context, object, _this, count, arguments, exception);
2463 }
2464
2465 static JSValueRef Selector_callAsFunction_toCYON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
2466     Selector_privateData *internal(reinterpret_cast<Selector_privateData *>(JSObjectGetPrivate(_this)));
2467     const char *name(sel_getName(internal->GetValue()));
2468
2469     CYPoolTry {
2470         NSString *string([NSString stringWithFormat:@"@selector(%s)", name]);
2471         return CYCastJSValue(context, CYJSString(context, string));
2472     } CYPoolCatch(NULL)
2473 } CYCatch return /*XXX*/ NULL; }
2474
2475 static JSValueRef Selector_callAsFunction_type(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
2476     if (count != 1)
2477         throw CYJSError(context, "incorrect number of arguments to Selector.type");
2478
2479     CYPool pool;
2480     Selector_privateData *internal(reinterpret_cast<Selector_privateData *>(JSObjectGetPrivate(_this)));
2481     SEL sel(internal->GetValue());
2482
2483     objc_method *method;
2484     if (Class _class = CYCastClass(pool, context, arguments[0]))
2485         method = class_getInstanceMethod(_class, sel);
2486     else
2487         method = NULL;
2488
2489     if (const char *type = CYPoolTypeEncoding(pool, context, sel, method))
2490         return CYCastJSValue(context, CYJSString(type));
2491
2492     return CYJSNull(context);
2493 } CYCatch }
2494
2495 static JSStaticValue Selector_staticValues[2] = {
2496     {"value", &CYValue_getProperty_value, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete},
2497     {NULL, NULL, NULL, 0}
2498 };
2499
2500 static JSStaticValue Instance_staticValues[5] = {
2501     {"constructor", &Instance_getProperty_constructor, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2502     {"messages", &Instance_getProperty_messages, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2503     {"prototype", &Instance_getProperty_prototype, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2504     {"value", &CYValue_getProperty_value, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2505     {NULL, NULL, NULL, 0}
2506 };
2507
2508 static JSStaticFunction Instance_staticFunctions[7] = {
2509     {"$cya", &CYValue_callAsFunction_$cya, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2510     {"toCYON", &Instance_callAsFunction_toCYON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2511     {"toJSON", &Instance_callAsFunction_toJSON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2512     {"valueOf", &Instance_callAsFunction_valueOf, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2513     {"toPointer", &Instance_callAsFunction_toPointer, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2514     {"toString", &Instance_callAsFunction_toString, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2515     {NULL, NULL, 0}
2516 };
2517
2518 static JSStaticFunction Internal_staticFunctions[2] = {
2519     {"$cya", &Internal_callAsFunction_$cya, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2520     {NULL, NULL, 0}
2521 };
2522
2523 static JSStaticFunction Selector_staticFunctions[5] = {
2524     {"toCYON", &Selector_callAsFunction_toCYON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2525     {"toJSON", &Selector_callAsFunction_toJSON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2526     {"toString", &Selector_callAsFunction_toString, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2527     {"type", &Selector_callAsFunction_type, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2528     {NULL, NULL, 0}
2529 };
2530
2531 void CYObjectiveC_Initialize() { /*XXX*/ JSContextRef context(NULL); CYPoolTry {
2532     $objc_setAssociatedObject = reinterpret_cast<void (*)(id, void *, id value, objc_AssociationPolicy)>(dlsym(RTLD_DEFAULT, "objc_setAssociatedObject"));
2533     $objc_getAssociatedObject = reinterpret_cast<id (*)(id, void *)>(dlsym(RTLD_DEFAULT, "objc_getAssociatedObject"));
2534     $objc_removeAssociatedObjects = reinterpret_cast<void (*)(id)>(dlsym(RTLD_DEFAULT, "objc_removeAssociatedObjects"));
2535
2536     apr_pool_t *pool(CYGetGlobalPool());
2537
2538     Object_type = new(pool) Type_privateData("@");
2539     Selector_type = new(pool) Type_privateData(":");
2540
2541 #ifdef __APPLE__
2542     // XXX: apparently, iOS now has both of these
2543     NSCFBoolean_ = objc_getClass("__NSCFBoolean");
2544     if (NSCFBoolean_ == nil)
2545         NSCFBoolean_ = objc_getClass("NSCFBoolean");
2546
2547     NSCFType_ = objc_getClass("NSCFType");
2548     NSGenericDeallocHandler_ = objc_getClass("__NSGenericDeallocHandler");
2549     NSMessageBuilder_ = objc_getClass("NSMessageBuilder");
2550     NSZombie_ = objc_getClass("_NSZombie_");
2551 #else
2552     NSBoolNumber_ = objc_getClass("NSBoolNumber");
2553 #endif
2554
2555     NSArray_ = objc_getClass("NSArray");
2556     NSBlock_ = objc_getClass("NSBlock");
2557     NSDictionary_ = objc_getClass("NSDictionary");
2558     NSString_ = objc_getClass("NSString");
2559     Object_ = objc_getClass("Object");
2560
2561     JSClassDefinition definition;
2562
2563     definition = kJSClassDefinitionEmpty;
2564     definition.className = "Instance";
2565     definition.staticValues = Instance_staticValues;
2566     definition.staticFunctions = Instance_staticFunctions;
2567     definition.hasProperty = &Instance_hasProperty;
2568     definition.getProperty = &Instance_getProperty;
2569     definition.setProperty = &Instance_setProperty;
2570     definition.deleteProperty = &Instance_deleteProperty;
2571     definition.getPropertyNames = &Instance_getPropertyNames;
2572     definition.callAsConstructor = &Instance_callAsConstructor;
2573     definition.callAsFunction = &Instance_callAsFunction;
2574     definition.hasInstance = &Instance_hasInstance;
2575     definition.finalize = &CYFinalize;
2576     Instance_ = JSClassCreate(&definition);
2577
2578     definition.className = "ArrayInstance";
2579     ArrayInstance_ = JSClassCreate(&definition);
2580
2581     definition.className = "ObjectInstance";
2582     ObjectInstance_ = JSClassCreate(&definition);
2583
2584     definition.className = "StringInstance";
2585     StringInstance_ = JSClassCreate(&definition);
2586
2587     definition.className = "FunctionInstance";
2588     FunctionInstance_ = JSClassCreate(&definition);
2589
2590     definition = kJSClassDefinitionEmpty;
2591     definition.className = "Internal";
2592     definition.staticFunctions = Internal_staticFunctions;
2593     definition.hasProperty = &Internal_hasProperty;
2594     definition.getProperty = &Internal_getProperty;
2595     definition.setProperty = &Internal_setProperty;
2596     definition.getPropertyNames = &Internal_getPropertyNames;
2597     definition.finalize = &CYFinalize;
2598     Internal_ = JSClassCreate(&definition);
2599
2600     definition = kJSClassDefinitionEmpty;
2601     definition.className = "Message";
2602     definition.staticFunctions = cy::Functor::StaticFunctions;
2603     definition.callAsFunction = &Message_callAsFunction;
2604     definition.finalize = &CYFinalize;
2605     Message_ = JSClassCreate(&definition);
2606
2607     definition = kJSClassDefinitionEmpty;
2608     definition.className = "Messages";
2609     definition.hasProperty = &Messages_hasProperty;
2610     definition.getProperty = &Messages_getProperty;
2611     definition.setProperty = &Messages_setProperty;
2612 #if 0 && OBJC_API_VERSION < 2
2613     definition.deleteProperty = &Messages_deleteProperty;
2614 #endif
2615     definition.getPropertyNames = &Messages_getPropertyNames;
2616     definition.finalize = &CYFinalize;
2617     Messages_ = JSClassCreate(&definition);
2618
2619     definition = kJSClassDefinitionEmpty;
2620     definition.className = "Selector";
2621     definition.staticValues = Selector_staticValues;
2622     definition.staticFunctions = Selector_staticFunctions;
2623     definition.callAsFunction = &Selector_callAsFunction;
2624     definition.finalize = &CYFinalize;
2625     Selector_ = JSClassCreate(&definition);
2626
2627     definition = kJSClassDefinitionEmpty;
2628     definition.className = "Super";
2629     definition.staticFunctions = Internal_staticFunctions;
2630     definition.finalize = &CYFinalize;
2631     Super_ = JSClassCreate(&definition);
2632
2633     definition = kJSClassDefinitionEmpty;
2634     definition.className = "ObjectiveC::Classes";
2635     definition.getProperty = &ObjectiveC_Classes_getProperty;
2636     definition.getPropertyNames = &ObjectiveC_Classes_getPropertyNames;
2637     ObjectiveC_Classes_ = JSClassCreate(&definition);
2638
2639     definition = kJSClassDefinitionEmpty;
2640     definition.className = "ObjectiveC::Constants";
2641     definition.getProperty = &ObjectiveC_Constants_getProperty;
2642     definition.getPropertyNames = &ObjectiveC_Constants_getPropertyNames;
2643     ObjectiveC_Constants_ = JSClassCreate(&definition);
2644
2645 #if OBJC_API_VERSION >= 2
2646     definition = kJSClassDefinitionEmpty;
2647     definition.className = "ObjectiveC::Images";
2648     definition.getProperty = &ObjectiveC_Images_getProperty;
2649     definition.getPropertyNames = &ObjectiveC_Images_getPropertyNames;
2650     ObjectiveC_Images_ = JSClassCreate(&definition);
2651
2652     definition = kJSClassDefinitionEmpty;
2653     definition.className = "ObjectiveC::Image::Classes";
2654     definition.getProperty = &ObjectiveC_Image_Classes_getProperty;
2655     definition.getPropertyNames = &ObjectiveC_Image_Classes_getPropertyNames;
2656     ObjectiveC_Image_Classes_ = JSClassCreate(&definition);
2657 #endif
2658
2659     definition = kJSClassDefinitionEmpty;
2660     definition.className = "ObjectiveC::Protocols";
2661     definition.getProperty = &ObjectiveC_Protocols_getProperty;
2662     definition.getPropertyNames = &ObjectiveC_Protocols_getPropertyNames;
2663     ObjectiveC_Protocols_ = JSClassCreate(&definition);
2664
2665 #ifdef __APPLE__
2666     class_addMethod(NSCFType_, @selector(cy$toJSON:), reinterpret_cast<IMP>(&NSCFType$cy$toJSON), "@12@0:4@8");
2667 #endif
2668 } CYPoolCatch() }
2669
2670 void CYObjectiveC_SetupContext(JSContextRef context) { CYPoolTry {
2671     JSObjectRef global(CYGetGlobalObject(context));
2672     JSObjectRef cy(CYCastJSObject(context, CYGetProperty(context, global, cy_s)));
2673     JSObjectRef cycript(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Cycript"))));
2674     JSObjectRef all(CYCastJSObject(context, CYGetProperty(context, cycript, CYJSString("all"))));
2675     JSObjectRef alls(CYCastJSObject(context, CYGetProperty(context, cycript, CYJSString("alls"))));
2676
2677     JSObjectRef ObjectiveC(JSObjectMake(context, NULL, NULL));
2678     CYSetProperty(context, cycript, CYJSString("ObjectiveC"), ObjectiveC);
2679
2680     JSObjectRef protocols(JSObjectMake(context, ObjectiveC_Protocols_, NULL));
2681     CYSetProperty(context, ObjectiveC, CYJSString("protocols"), protocols);
2682     CYArrayPush(context, alls, protocols);
2683
2684     JSObjectRef classes(JSObjectMake(context, ObjectiveC_Classes_, NULL));
2685     CYSetProperty(context, ObjectiveC, CYJSString("classes"), classes);
2686     CYArrayPush(context, alls, classes);
2687
2688     JSObjectRef constants(JSObjectMake(context, ObjectiveC_Constants_, NULL));
2689     CYSetProperty(context, ObjectiveC, CYJSString("constants"), constants);
2690     CYArrayPush(context, alls, constants);
2691
2692 #if OBJC_API_VERSION >= 2
2693     CYSetProperty(context, ObjectiveC, CYJSString("images"), JSObjectMake(context, ObjectiveC_Images_, NULL));
2694 #endif
2695
2696     JSObjectRef Instance(JSObjectMakeConstructor(context, Instance_, &Instance_new));
2697     JSObjectRef Message(JSObjectMakeConstructor(context, Message_, NULL));
2698     JSObjectRef Selector(JSObjectMakeConstructor(context, Selector_, &Selector_new));
2699     JSObjectRef Super(JSObjectMakeConstructor(context, Super_, &Super_new));
2700
2701     JSObjectRef Instance_prototype(CYCastJSObject(context, CYGetProperty(context, Instance, prototype_s)));
2702     CYSetProperty(context, cy, CYJSString("Instance_prototype"), Instance_prototype);
2703
2704     JSObjectRef ArrayInstance(JSObjectMakeConstructor(context, ArrayInstance_, NULL));
2705     JSObjectRef ArrayInstance_prototype(CYCastJSObject(context, CYGetProperty(context, ArrayInstance, prototype_s)));
2706     CYSetProperty(context, cy, CYJSString("ArrayInstance_prototype"), ArrayInstance_prototype);
2707     JSObjectRef Array_prototype(CYGetCachedObject(context, CYJSString("Array_prototype")));
2708     JSObjectSetPrototype(context, ArrayInstance_prototype, Array_prototype);
2709
2710     JSObjectRef FunctionInstance(JSObjectMakeConstructor(context, FunctionInstance_, NULL));
2711     JSObjectRef FunctionInstance_prototype(CYCastJSObject(context, CYGetProperty(context, FunctionInstance, prototype_s)));
2712     CYSetProperty(context, cy, CYJSString("FunctionInstance_prototype"), FunctionInstance_prototype);
2713     JSObjectRef Function_prototype(CYGetCachedObject(context, CYJSString("Function_prototype")));
2714     JSObjectSetPrototype(context, FunctionInstance_prototype, Function_prototype);
2715
2716     JSObjectRef ObjectInstance(JSObjectMakeConstructor(context, ObjectInstance_, NULL));
2717     JSObjectRef ObjectInstance_prototype(CYCastJSObject(context, CYGetProperty(context, ObjectInstance, prototype_s)));
2718     CYSetProperty(context, cy, CYJSString("ObjectInstance_prototype"), ObjectInstance_prototype);
2719     JSObjectRef Object_prototype(CYGetCachedObject(context, CYJSString("Object_prototype")));
2720     JSObjectSetPrototype(context, ObjectInstance_prototype, Object_prototype);
2721
2722     JSObjectRef StringInstance(JSObjectMakeConstructor(context, StringInstance_, NULL));
2723     JSObjectRef StringInstance_prototype(CYCastJSObject(context, CYGetProperty(context, StringInstance, prototype_s)));
2724     CYSetProperty(context, cy, CYJSString("StringInstance_prototype"), StringInstance_prototype);
2725     JSObjectRef String_prototype(CYGetCachedObject(context, CYJSString("String_prototype")));
2726     JSObjectSetPrototype(context, StringInstance_prototype, String_prototype);
2727
2728     CYSetProperty(context, cycript, CYJSString("Instance"), Instance);
2729     CYSetProperty(context, cycript, CYJSString("Selector"), Selector);
2730     CYSetProperty(context, cycript, CYJSString("Super"), Super);
2731
2732     JSObjectRef box(JSObjectMakeFunctionWithCallback(context, CYJSString("box"), &Instance_box_callAsFunction));
2733     CYSetProperty(context, Instance, CYJSString("box"), box);
2734
2735 #if defined(__APPLE__) && defined(__arm__) && 0
2736     CYSetProperty(context, all, CYJSString("objc_registerClassPair"), &objc_registerClassPair_, kJSPropertyAttributeDontEnum);
2737 #endif
2738
2739     CYSetProperty(context, all, CYJSString("objc_msgSend"), &$objc_msgSend, kJSPropertyAttributeDontEnum);
2740
2741     JSObjectSetPrototype(context, CYCastJSObject(context, CYGetProperty(context, Message, prototype_s)), Function_prototype);
2742     JSObjectSetPrototype(context, CYCastJSObject(context, CYGetProperty(context, Selector, prototype_s)), Function_prototype);
2743 } CYPoolCatch() }
2744
2745 static CYHooks CYObjectiveCHooks = {
2746     &CYObjectiveC_ExecuteStart,
2747     &CYObjectiveC_ExecuteEnd,
2748     &CYObjectiveC_CallFunction,
2749     &CYObjectiveC_Initialize,
2750     &CYObjectiveC_SetupContext,
2751     &CYObjectiveC_PoolFFI,
2752     &CYObjectiveC_FromFFI,
2753 };
2754
2755 struct CYObjectiveC {
2756     CYObjectiveC() {
2757         hooks_ = &CYObjectiveCHooks;
2758         // XXX: evil magic juju to make this actually take effect on a Mac when compiled with autoconf/libtool doom!
2759         _assert(hooks_ != NULL);
2760     }
2761 } CYObjectiveC;