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