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