ObjectiveC/Library.mm

   1 /* Cycript - Optimizing JavaScript Compiler/Runtime
   2  * Copyright (C) 2009-2013  Jay Freeman (saurik)
   3 */
   4
   5 /* GNU General Public License, Version 3 {{{ */
   6 /*
   7  * Cycript is free software: you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published
   9  * by the Free Software Foundation, either version 3 of the License,
  10  * or (at your option) any later version.
  11  *
  12  * Cycript is distributed in the hope that it will be useful, but
  13  * WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with Cycript.  If not, see <http://www.gnu.org/licenses/>.
  19 **/
  20 /* }}} */
  21
  22 #include <Foundation/Foundation.h>
  23
  24 #include "ObjectiveC/Internal.hpp"
  25
  26 #include <objc/objc-api.h>
  27
  28 #include "cycript.hpp"
  29
  30 #include "ObjectiveC/Internal.hpp"
  31
  32 #ifdef __APPLE__
  33 #include <CoreFoundation/CoreFoundation.h>
  34 #include <JavaScriptCore/JSStringRefCF.h>
  35 #include <WebKit/WebScriptObject.h>
  36 #include <objc/runtime.h>
  37 #endif
  38
  39 #include "Error.hpp"
  40 #include "JavaScript.hpp"
  41 #include "String.hpp"
  42 #include "Execute.hpp"
  43
  44 #include <cmath>
  45 #include <map>
  46
  47 #include <dlfcn.h>
  48
  49 #define CYObjectiveTry_(context) { \
  50     JSContextRef context_(context); \
  51     try
  52 #define CYObjectiveTry { \
  53     try
  54 #define CYObjectiveCatch \
  55     catch (const CYException &error) { \
  56         @throw CYCastNSObject(NULL, context_, error.CastJSValue(context_)); \
  57     } \
  58 }
  59
  60 #define CYPoolTry { \
  61     id _saved(nil); \
  62     NSAutoreleasePool *_pool([[NSAutoreleasePool alloc] init]); \
  63     @try
  64 #define CYPoolCatch(value) \
  65     @catch (NSException *error) { \
  66         _saved = [error retain]; \
  67         throw CYJSError(context, CYCastJSValue(context, error)); \
  68         return value; \
  69     } @finally { \
  70         [_pool release]; \
  71         if (_saved != nil) \
  72             [_saved autorelease]; \
  73     } \
  74 }
  75
  76 #define CYSadTry { \
  77     @try
  78 #define CYSadCatch(value) \
  79     @catch (NSException *error ) { \
  80         throw CYJSError(context, CYCastJSValue(context, error)); \
  81     } return value; \
  82 }
  83
  84 #ifndef __APPLE__
  85 #define class_getSuperclass GSObjCSuper
  86 #define class_getInstanceVariable GSCGetInstanceVariableDefinition
  87 #define class_getName GSNameFromClass
  88
  89 #define class_removeMethods(cls, list) GSRemoveMethodList(cls, list, YES)
  90
  91 #define ivar_getName(ivar) ((ivar)->ivar_name)
  92 #define ivar_getOffset(ivar) ((ivar)->ivar_offset)
  93 #define ivar_getTypeEncoding(ivar) ((ivar)->ivar_type)
  94
  95 #define method_getName(method) ((method)->method_name)
  96 #define method_getImplementation(method) ((method)->method_imp)
  97 #define method_getTypeEncoding(method) ((method)->method_types)
  98 #define method_setImplementation(method, imp) ((void) ((method)->method_imp = (imp)))
  99
 100 #undef objc_getClass
 101 #define objc_getClass GSClassFromName
 102
 103 #define objc_getProtocol GSProtocolFromName
 104
 105 #define object_getClass GSObjCClass
 106
 107 #define object_getInstanceVariable(object, name, value) ({ \
 108     objc_ivar *ivar(class_getInstanceVariable(object_getClass(object), name)); \
 109     _assert(value != NULL); \
 110     if (ivar != NULL) \
 111         GSObjCGetVariable(object, ivar_getOffset(ivar), sizeof(void *), value); \
 112     ivar; \
 113 })
 114
 115 #define object_setIvar(object, ivar, value) ({ \
 116     void *data = (value); \
 117     GSObjCSetVariable(object, ivar_getOffset(ivar), sizeof(void *), &data); \
 118 })
 119
 120 #define protocol_getName(protocol) [(protocol) name]
 121 #endif
 122
 123 static void (*$objc_setAssociatedObject)(id object, void *key, id value, objc_AssociationPolicy policy);
 124 static id (*$objc_getAssociatedObject)(id object, void *key);
 125 static void (*$objc_removeAssociatedObjects)(id object);
 126
 127 struct BlockLiteral {
 128     Class isa;
 129     int flags;
 130     int reserved;
 131     void (*invoke)(void *, ...);
 132     void *descriptor;
 133 };
 134
 135 struct BlockDescriptor1 {
 136     unsigned long int reserved;
 137     unsigned long int size;
 138 };
 139
 140 struct BlockDescriptor2 {
 141     void (*copy_helper)(BlockLiteral *dst, BlockLiteral *src);
 142     void (*dispose_helper)(BlockLiteral *src);
 143 };
 144
 145 struct BlockDescriptor3 {
 146     const char *signature;
 147     const char *layout;
 148 };
 149
 150 enum {
 151     BLOCK_DEALLOCATING = 0x0001,
 152     BLOCK_REFCOUNT_MASK = 0xfffe,
 153     BLOCK_NEEDS_FREE = 1 << 24,
 154     BLOCK_HAS_COPY_DISPOSE = 1 << 25,
 155     BLOCK_HAS_CTOR = 1 << 26,
 156     BLOCK_IS_GC = 1 << 27,
 157     BLOCK_IS_GLOBAL = 1 << 28,
 158     BLOCK_HAS_STRET = 1 << 29,
 159     BLOCK_HAS_SIGNATURE = 1 << 30,
 160 };
 161
 162 JSValueRef CYSendMessage(CYPool &pool, JSContextRef context, id self, Class super, SEL _cmd, size_t count, const JSValueRef arguments[], bool initialize, JSValueRef *exception);
 163
 164 /* Objective-C Pool Release {{{ */
 165 void CYPoolRelease_(void *data) {
 166     id object(reinterpret_cast<id>(data));
 167     [object release];
 168 }
 169
 170 id CYPoolRelease_(CYPool *pool, id object) {
 171     if (object == nil)
 172         return nil;
 173     else if (pool == NULL)
 174         return [object autorelease];
 175     else {
 176         pool->atexit(CYPoolRelease_);
 177         return object;
 178     }
 179 }
 180
 181 template <typename Type_>
 182 Type_ CYPoolRelease(CYPool *pool, Type_ object) {
 183     return (Type_) CYPoolRelease_(pool, (id) object);
 184 }
 185 /* }}} */
 186 /* Objective-C Strings {{{ */
 187 const char *CYPoolCString(CYPool &pool, JSContextRef context, NSString *value) {
 188     if (pool == NULL)
 189         return [value UTF8String];
 190     else {
 191         size_t size([value maximumLengthOfBytesUsingEncoding:NSUTF8StringEncoding] + 1);
 192         char *string(new(pool) char[size]);
 193         if (![value getCString:string maxLength:size encoding:NSUTF8StringEncoding])
 194             throw CYJSError(context, "[NSString getCString:maxLength:encoding:] == NO");
 195         return string;
 196     }
 197 }
 198
 199 JSStringRef CYCopyJSString(JSContextRef context, NSString *value) {
 200 #ifdef __APPLE__
 201     return JSStringCreateWithCFString(reinterpret_cast<CFStringRef>(value));
 202 #else
 203     CYPool pool;
 204     return CYCopyJSString(CYPoolCString(pool, context, value));
 205 #endif
 206 }
 207
 208 JSStringRef CYCopyJSString(JSContextRef context, NSObject *value) {
 209     if (value == nil)
 210         return NULL;
 211     // XXX: this definition scares me; is anyone using this?!
 212     NSString *string([value description]);
 213     return CYCopyJSString(context, string);
 214 }
 215
 216 NSString *CYCopyNSString(const CYUTF8String &value) {
 217 #ifdef __APPLE__
 218     return (NSString *) CFStringCreateWithBytes(kCFAllocatorDefault, reinterpret_cast<const UInt8 *>(value.data), value.size, kCFStringEncodingUTF8, true);
 219 #else
 220     return [[NSString alloc] initWithBytes:value.data length:value.size encoding:NSUTF8StringEncoding];
 221 #endif
 222 }
 223
 224 NSString *CYCopyNSString(JSContextRef context, JSStringRef value) {
 225 #ifdef __APPLE__
 226     return (NSString *) JSStringCopyCFString(kCFAllocatorDefault, value);
 227 #else
 228     CYPool pool;
 229     return CYCopyNSString(CYPoolUTF8String(pool, context, value));
 230 #endif
 231 }
 232
 233 NSString *CYCopyNSString(JSContextRef context, JSValueRef value) {
 234     return CYCopyNSString(context, CYJSString(context, value));
 235 }
 236
 237 NSString *CYCastNSString(CYPool *pool, const CYUTF8String &value) {
 238     return CYPoolRelease(pool, CYCopyNSString(value));
 239 }
 240
 241 NSString *CYCastNSString(CYPool *pool, SEL sel) {
 242     const char *name(sel_getName(sel));
 243     return CYPoolRelease(pool, CYCopyNSString(CYUTF8String(name, strlen(name))));
 244 }
 245
 246 NSString *CYCastNSString(CYPool *pool, JSContextRef context, JSStringRef value) {
 247     return CYPoolRelease(pool, CYCopyNSString(context, value));
 248 }
 249
 250 CYUTF8String CYCastUTF8String(NSString *value) {
 251     NSData *data([value dataUsingEncoding:NSUTF8StringEncoding allowLossyConversion:NO]);
 252     return CYUTF8String(reinterpret_cast<const char *>([data bytes]), [data length]);
 253 }
 254 /* }}} */
 255
 256 JSValueRef CYCastJSValue(JSContextRef context, NSObject *value);
 257
 258 void CYThrow(JSContextRef context, NSException *error, JSValueRef *exception) {
 259     if (exception == NULL)
 260         throw error;
 261     *exception = CYCastJSValue(context, error);
 262 }
 263
 264 size_t CYGetIndex(NSString *value) {
 265     return CYGetIndex(CYCastUTF8String(value));
 266 }
 267
 268 bool CYGetOffset(CYPool &pool, JSContextRef context, NSString *value, ssize_t &index) {
 269     return CYGetOffset(CYPoolCString(pool, context, value), index);
 270 }
 271
 272 static JSClassRef Instance_;
 273
 274 static JSClassRef ArrayInstance_;
 275 static JSClassRef FunctionInstance_;
 276 static JSClassRef ObjectInstance_;
 277 static JSClassRef StringInstance_;
 278
 279 static JSClassRef Class_;
 280 static JSClassRef Internal_;
 281 static JSClassRef Message_;
 282 static JSClassRef Messages_;
 283 static JSClassRef Selector_;
 284 static JSClassRef Super_;
 285
 286 static JSClassRef ObjectiveC_Classes_;
 287 static JSClassRef ObjectiveC_Constants_;
 288 static JSClassRef ObjectiveC_Protocols_;
 289
 290 #ifdef __APPLE__
 291 static JSClassRef ObjectiveC_Image_Classes_;
 292 static JSClassRef ObjectiveC_Images_;
 293 #endif
 294
 295 #ifdef __APPLE__
 296 static Class NSCFBoolean_;
 297 static Class NSCFType_;
 298 static Class NSGenericDeallocHandler_;
 299 static Class NSMessageBuilder_;
 300 static Class NSZombie_;
 301 #else
 302 static Class NSBoolNumber_;
 303 #endif
 304
 305 static Class NSArray_;
 306 static Class NSBlock_;
 307 static Class NSDictionary_;
 308 static Class NSString_;
 309 static Class Object_;
 310
 311 static Type_privateData *Object_type;
 312 static Type_privateData *Selector_type;
 313
 314 Type_privateData *Instance::GetType() const {
 315     return Object_type;
 316 }
 317
 318 Type_privateData *Selector_privateData::GetType() const {
 319     return Selector_type;
 320 }
 321
 322 static JSValueRef Instance_callAsFunction_toString(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception);
 323
 324 JSValueRef CYGetClassPrototype(JSContextRef context, Class self, bool meta) {
 325     if (self == nil)
 326         return CYGetCachedObject(context, CYJSString("Instance_prototype"));
 327     else if (meta && !class_isMetaClass(self))
 328         return CYGetCachedObject(context, CYJSString("Class_prototype"));
 329
 330     JSObjectRef global(CYGetGlobalObject(context));
 331     JSObjectRef cy(CYCastJSObject(context, CYGetProperty(context, global, cy_s)));
 332
 333     char label[32];
 334     sprintf(label, "i%p", self);
 335     CYJSString name(label);
 336
 337     JSValueRef value(CYGetProperty(context, cy, name));
 338     if (!JSValueIsUndefined(context, value))
 339         return value;
 340
 341     JSClassRef _class(NULL);
 342     JSValueRef prototype;
 343
 344     if (self == NSArray_)
 345         prototype = CYGetCachedObject(context, CYJSString("ArrayInstance_prototype"));
 346     else if (self == NSBlock_)
 347         prototype = CYGetCachedObject(context, CYJSString("FunctionInstance_prototype"));
 348     else if (self == NSDictionary_)
 349         prototype = CYGetCachedObject(context, CYJSString("ObjectInstance_prototype"));
 350     else if (self == NSString_)
 351         prototype = CYGetCachedObject(context, CYJSString("StringInstance_prototype"));
 352     else
 353         prototype = CYGetClassPrototype(context, class_getSuperclass(self), meta);
 354
 355     JSObjectRef object(JSObjectMake(context, _class, NULL));
 356     JSObjectSetPrototype(context, object, prototype);
 357     CYSetProperty(context, cy, name, object);
 358
 359     return object;
 360 }
 361
 362 _finline JSValueRef CYGetClassPrototype(JSContextRef context, Class self) {
 363     return CYGetClassPrototype(context, self, class_isMetaClass(self));
 364 }
 365
 366 JSObjectRef Messages::Make(JSContextRef context, Class _class) {
 367     JSObjectRef value(JSObjectMake(context, Messages_, new Messages(_class)));
 368     if (Class super = class_getSuperclass(_class))
 369         JSObjectSetPrototype(context, value, Messages::Make(context, super));
 370     return value;
 371 }
 372
 373 JSObjectRef Internal::Make(JSContextRef context, id object, JSObjectRef owner) {
 374     return JSObjectMake(context, Internal_, new Internal(object, context, owner));
 375 }
 376
 377 namespace cy {
 378 JSObjectRef Super::Make(JSContextRef context, id object, Class _class) {
 379     JSObjectRef value(JSObjectMake(context, Super_, new Super(object, _class)));
 380     return value;
 381 } }
 382
 383 JSObjectRef Instance::Make(JSContextRef context, id object, Flags flags) {
 384     JSObjectRef value(JSObjectMake(context, Instance_, new Instance(object, flags)));
 385     JSObjectSetPrototype(context, value, CYGetClassPrototype(context, object_getClass(object)));
 386     return value;
 387 }
 388
 389 Instance::~Instance() {
 390     if ((flags_ & Transient) == 0)
 391         // XXX: does this handle background threads correctly?
 392         // XXX: this simply does not work on the console because I'm stupid
 393         [GetValue() performSelector:@selector(release) withObject:nil afterDelay:0];
 394 }
 395
 396 struct Message_privateData :
 397     cy::Functor
 398 {
 399     SEL sel_;
 400
 401     Message_privateData(SEL sel, const char *type, IMP value = NULL) :
 402         cy::Functor(type, reinterpret_cast<void (*)()>(value)),
 403         sel_(sel)
 404     {
 405     }
 406 };
 407
 408 JSObjectRef CYMakeInstance(JSContextRef context, id object, bool transient) {
 409     Instance::Flags flags;
 410
 411     if (transient)
 412         flags = Instance::Transient;
 413     else {
 414         flags = Instance::None;
 415         object = [object retain];
 416     }
 417
 418     return Instance::Make(context, object, flags);
 419 }
 420
 421 @interface NSMethodSignature (Cycript)
 422 - (NSString *) _typeString;
 423 @end
 424
 425 @interface NSObject (Cycript)
 426
 427 - (JSValueRef) cy$valueOfInContext:(JSContextRef)context;
 428 - (JSType) cy$JSType;
 429
 430 - (JSValueRef) cy$toJSON:(NSString *)key inContext:(JSContextRef)context;
 431 - (NSString *) cy$toCYON:(bool)objective;
 432
 433 - (bool) cy$hasProperty:(NSString *)name;
 434 - (NSObject *) cy$getProperty:(NSString *)name;
 435 - (JSValueRef) cy$getProperty:(NSString *)name inContext:(JSContextRef)context;
 436 - (bool) cy$setProperty:(NSString *)name to:(NSObject *)value;
 437 - (bool) cy$deleteProperty:(NSString *)name;
 438 - (void) cy$getPropertyNames:(JSPropertyNameAccumulatorRef)names inContext:(JSContextRef)context;
 439
 440 + (bool) cy$hasImplicitProperties;
 441
 442 @end
 443
 444 @protocol Cycript
 445 - (id) cy$box;
 446 - (JSValueRef) cy$valueOfInContext:(JSContextRef)context;
 447 @end
 448
 449 NSString *CYCastNSCYON(id value, bool objective) {
 450     NSString *string;
 451
 452     if (value == nil)
 453         string = @"nil";
 454     else {
 455         Class _class(object_getClass(value));
 456         SEL sel(@selector(cy$toCYON:));
 457
 458         if (objc_method *toCYON = class_getInstanceMethod(_class, sel))
 459             string = reinterpret_cast<NSString *(*)(id, SEL, bool)>(method_getImplementation(toCYON))(value, sel, objective);
 460         else if (objc_method *methodSignatureForSelector = class_getInstanceMethod(_class, @selector(methodSignatureForSelector:))) {
 461             if (reinterpret_cast<NSMethodSignature *(*)(id, SEL, SEL)>(method_getImplementation(methodSignatureForSelector))(value, @selector(methodSignatureForSelector:), sel) != nil)
 462                 string = [value cy$toCYON:objective];
 463             else goto fail;
 464         } else fail: {
 465             if (false);
 466 #ifdef __APPLE__
 467             else if (value == NSZombie_)
 468                 string = @"_NSZombie_";
 469             else if (_class == NSZombie_)
 470                 string = [NSString stringWithFormat:@"<_NSZombie_: %p>", value];
 471             // XXX: frowny /in/ the pants
 472             else if (value == NSGenericDeallocHandler_ || value == NSMessageBuilder_ || value == Object_)
 473                 string = nil;
 474 #endif
 475             else
 476                 string = [NSString stringWithFormat:@"%@", value];
 477         }
 478
 479         // XXX: frowny pants
 480         if (string == nil)
 481             string = @"undefined";
 482     }
 483
 484     return string;
 485 }
 486
 487 #ifdef __APPLE__
 488 struct PropertyAttributes {
 489     CYPool pool_;
 490
 491     const char *name;
 492
 493     const char *variable;
 494
 495     const char *getter_;
 496     const char *setter_;
 497
 498     bool readonly;
 499     bool copy;
 500     bool retain;
 501     bool nonatomic;
 502     bool dynamic;
 503     bool weak;
 504     bool garbage;
 505
 506     PropertyAttributes(objc_property_t property) :
 507         variable(NULL),
 508         getter_(NULL),
 509         setter_(NULL),
 510         readonly(false),
 511         copy(false),
 512         retain(false),
 513         nonatomic(false),
 514         dynamic(false),
 515         weak(false),
 516         garbage(false)
 517     {
 518         name = property_getName(property);
 519         const char *attributes(property_getAttributes(property));
 520
 521         for (char *token(pool_.strdup(attributes)), *next; token != NULL; token = next) {
 522             if ((next = strchr(token, ',')) != NULL)
 523                 *next++ = '\0';
 524             switch (*token) {
 525                 case 'R': readonly = true; break;
 526                 case 'C': copy = true; break;
 527                 case '&': retain = true; break;
 528                 case 'N': nonatomic = true; break;
 529                 case 'G': getter_ = token + 1; break;
 530                 case 'S': setter_ = token + 1; break;
 531                 case 'V': variable = token + 1; break;
 532             }
 533         }
 534
 535         /*if (variable == NULL) {
 536             variable = property_getName(property);
 537             size_t size(strlen(variable));
 538             char *name(new(pool_) char[size + 2]);
 539             name[0] = '_';
 540             memcpy(name + 1, variable, size);
 541             name[size + 1] = '\0';
 542             variable = name;
 543         }*/
 544     }
 545
 546     const char *Getter() {
 547         if (getter_ == NULL)
 548             getter_ = pool_.strdup(name);
 549         return getter_;
 550     }
 551
 552     const char *Setter() {
 553         if (setter_ == NULL && !readonly) {
 554             size_t length(strlen(name));
 555
 556             char *temp(new(pool_) char[length + 5]);
 557             temp[0] = 's';
 558             temp[1] = 'e';
 559             temp[2] = 't';
 560
 561             if (length != 0) {
 562                 temp[3] = toupper(name[0]);
 563                 memcpy(temp + 4, name + 1, length - 1);
 564             }
 565
 566             temp[length + 3] = ':';
 567             temp[length + 4] = '\0';
 568             setter_ = temp;
 569         }
 570
 571         return setter_;
 572     }
 573
 574 };
 575 #endif
 576
 577 #ifndef __APPLE__
 578 @interface CYWebUndefined : NSObject {
 579 }
 580
 581 + (CYWebUndefined *) undefined;
 582
 583 @end
 584
 585 @implementation CYWebUndefined
 586
 587 + (CYWebUndefined *) undefined {
 588     static CYWebUndefined *instance_([[CYWebUndefined alloc] init]);
 589     return instance_;
 590 }
 591
 592 @end
 593
 594 #define WebUndefined CYWebUndefined
 595 #endif
 596
 597 /* Bridge: CYJSObject {{{ */
 598 @interface CYJSObject : NSMutableDictionary {
 599     JSObjectRef object_;
 600     JSGlobalContextRef context_;
 601 }
 602
 603 - (id) initWithJSObject:(JSObjectRef)object inContext:(JSContextRef)context;
 604
 605 - (NSUInteger) count;
 606 - (id) objectForKey:(id)key;
 607 - (NSEnumerator *) keyEnumerator;
 608 - (void) setObject:(id)object forKey:(id)key;
 609 - (void) removeObjectForKey:(id)key;
 610
 611 @end
 612 /* }}} */
 613 /* Bridge: CYJSArray {{{ */
 614 @interface CYJSArray : NSMutableArray {
 615     JSObjectRef object_;
 616     JSGlobalContextRef context_;
 617 }
 618
 619 - (id) initWithJSObject:(JSObjectRef)object inContext:(JSContextRef)context;
 620
 621 - (NSUInteger) count;
 622 - (id) objectAtIndex:(NSUInteger)index;
 623
 624 - (void) addObject:(id)anObject;
 625 - (void) insertObject:(id)anObject atIndex:(NSUInteger)index;
 626 - (void) removeLastObject;
 627 - (void) removeObjectAtIndex:(NSUInteger)index;
 628 - (void) replaceObjectAtIndex:(NSUInteger)index withObject:(id)anObject;
 629
 630 @end
 631 /* }}} */
 632
 633 _finline bool CYJSValueIsNSObject(JSContextRef context, JSValueRef value) {
 634     return JSValueIsObjectOfClass(context, value, Instance_);
 635 }
 636
 637 _finline bool CYJSValueIsInstanceOfCachedConstructor(JSContextRef context, JSValueRef value, JSStringRef cache) {
 638     JSValueRef exception(NULL);
 639     JSObjectRef constructor(CYGetCachedObject(context, cache));
 640     bool is(JSValueIsInstanceOfConstructor(context, value, constructor, &exception));
 641     CYThrow(context, exception);
 642     return is;
 643 }
 644
 645 NSObject *CYMakeBlock(void (*invoke)(), sig::Signature &signature) {
 646     BlockLiteral *literal(reinterpret_cast<BlockLiteral *>(malloc(sizeof(BlockLiteral))));
 647
 648     struct Descriptor {
 649         struct {
 650             BlockDescriptor1 one_;
 651             BlockDescriptor2 two_;
 652             BlockDescriptor3 three_;
 653         } d_;
 654
 655         CYPool pool_;
 656     };
 657
 658     Descriptor *descriptor(new Descriptor);
 659     memset(&descriptor->d_, 0, sizeof(descriptor->d_));
 660
 661     literal->isa = objc_getClass("__NSGlobalBlock__");
 662     literal->flags = BLOCK_HAS_SIGNATURE | BLOCK_HAS_COPY_DISPOSE | BLOCK_IS_GLOBAL;
 663     literal->reserved = 0;
 664     literal->invoke = reinterpret_cast<void (*)(void *, ...)>(invoke);
 665     literal->descriptor = descriptor;
 666
 667     descriptor->d_.one_.size = sizeof(descriptor->d_);
 668     descriptor->d_.three_.signature = sig::Unparse(descriptor->pool_, &signature);
 669
 670     return reinterpret_cast<NSObject *>(literal);
 671 }
 672
 673 NSObject *CYCastNSObject(CYPool *pool, JSContextRef context, JSObjectRef object) {
 674     if (CYJSValueIsNSObject(context, object)) {
 675         Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(object)));
 676         return internal->GetValue();
 677     }
 678
 679     if (JSValueIsObjectOfClass(context, object, Functor_)) {
 680         cy::Functor *internal(reinterpret_cast<cy::Functor *>(JSObjectGetPrivate(object)));
 681         return CYMakeBlock(internal->GetValue(), internal->signature_);
 682     }
 683
 684     bool array(CYJSValueIsInstanceOfCachedConstructor(context, object, Array_s));
 685     id value(array ? [CYJSArray alloc] : [CYJSObject alloc]);
 686     return CYPoolRelease(pool, [value initWithJSObject:object inContext:context]);
 687 }
 688
 689 NSNumber *CYCopyNSNumber(JSContextRef context, JSValueRef value) {
 690     return [[NSNumber alloc] initWithDouble:CYCastDouble(context, value)];
 691 }
 692
 693 #ifndef __APPLE__
 694 @interface NSBoolNumber : NSNumber {
 695 }
 696 @end
 697 #endif
 698
 699 id CYNSObject(CYPool *pool, JSContextRef context, JSValueRef value, bool cast) {
 700     id object;
 701     bool copy;
 702
 703     switch (JSType type = JSValueGetType(context, value)) {
 704         case kJSTypeUndefined:
 705             object = [WebUndefined undefined];
 706             copy = false;
 707         break;
 708
 709         case kJSTypeNull:
 710             return NULL;
 711         break;
 712
 713         case kJSTypeBoolean:
 714 #ifdef __APPLE__
 715             object = (id) (CYCastBool(context, value) ? kCFBooleanTrue : kCFBooleanFalse);
 716             copy = false;
 717 #else
 718             object = [[NSBoolNumber alloc] initWithBool:CYCastBool(context, value)];
 719             copy = true;
 720 #endif
 721         break;
 722
 723         case kJSTypeNumber:
 724             object = CYCopyNSNumber(context, value);
 725             copy = true;
 726         break;
 727
 728         case kJSTypeString:
 729             object = CYCopyNSString(context, value);
 730             copy = true;
 731         break;
 732
 733         case kJSTypeObject:
 734             // XXX: this might could be more efficient
 735             object = CYCastNSObject(pool, context, (JSObjectRef) value);
 736             copy = false;
 737         break;
 738
 739         default:
 740             throw CYJSError(context, "JSValueGetType() == 0x%x", type);
 741         break;
 742     }
 743
 744     if (cast != copy)
 745         return object;
 746     else if (copy)
 747         return CYPoolRelease(pool, object);
 748     else
 749         return [object retain];
 750 }
 751
 752 NSObject *CYCastNSObject(CYPool *pool, JSContextRef context, JSValueRef value) {
 753     return CYNSObject(pool, context, value, true);
 754 }
 755
 756 NSObject *CYCopyNSObject(CYPool &pool, JSContextRef context, JSValueRef value) {
 757     return CYNSObject(&pool, context, value, false);
 758 }
 759
 760 /* Bridge: NSArray {{{ */
 761 @implementation NSArray (Cycript)
 762
 763 - (id) cy$box {
 764     return [[self mutableCopy] autorelease];
 765 }
 766
 767 - (NSString *) cy$toCYON:(bool)objective {
 768     NSMutableString *json([[[NSMutableString alloc] init] autorelease]);
 769     [json appendString:@"@["];
 770
 771     bool comma(false);
 772 #ifdef __APPLE__
 773     for (id object in self) {
 774 #else
 775     for (size_t index(0), count([self count]); index != count; ++index) {
 776         id object([self objectAtIndex:index]);
 777 #endif
 778         if (comma)
 779             [json appendString:@","];
 780         else
 781             comma = true;
 782         if (object == nil || [object cy$JSType] != kJSTypeUndefined)
 783             [json appendString:CYCastNSCYON(object, true)];
 784         else {
 785             [json appendString:@","];
 786             comma = false;
 787         }
 788     }
 789
 790     [json appendString:@"]"];
 791     return json;
 792 }
 793
 794 - (bool) cy$hasProperty:(NSString *)name {
 795     if ([name isEqualToString:@"length"])
 796         return true;
 797
 798     size_t index(CYGetIndex(name));
 799     if (index == _not(size_t) || index >= [self count])
 800         return [super cy$hasProperty:name];
 801     else
 802         return true;
 803 }
 804
 805 - (NSObject *) cy$getProperty:(NSString *)name {
 806     size_t index(CYGetIndex(name));
 807     if (index == _not(size_t) || index >= [self count])
 808         return [super cy$getProperty:name];
 809     else
 810         return [self objectAtIndex:index];
 811 }
 812
 813 - (JSValueRef) cy$getProperty:(NSString *)name inContext:(JSContextRef)context {
 814     CYObjectiveTry_(context) {
 815         if ([name isEqualToString:@"length"])
 816             return CYCastJSValue(context, [self count]);
 817     } CYObjectiveCatch
 818
 819     return [super cy$getProperty:name inContext:context];
 820 }
 821
 822 - (void) cy$getPropertyNames:(JSPropertyNameAccumulatorRef)names inContext:(JSContextRef)context {
 823     [super cy$getPropertyNames:names inContext:context];
 824
 825     for (size_t index(0), count([self count]); index != count; ++index) {
 826         id object([self objectAtIndex:index]);
 827         if (object == nil || [object cy$JSType] != kJSTypeUndefined) {
 828             char name[32];
 829             sprintf(name, "%zu", index);
 830             JSPropertyNameAccumulatorAddName(names, CYJSString(name));
 831         }
 832     }
 833 }
 834
 835 + (bool) cy$hasImplicitProperties {
 836     return false;
 837 }
 838
 839 @end
 840 /* }}} */
 841 /* Bridge: NSBlock {{{ */
 842 #ifdef __APPLE__
 843 @interface NSBlock
 844 - (void) invoke;
 845 @end
 846 #endif
 847 /* }}} */
 848 /* Bridge: NSBoolNumber {{{ */
 849 #ifndef __APPLE__
 850 @implementation NSBoolNumber (Cycript)
 851
 852 - (JSType) cy$JSType {
 853     return kJSTypeBoolean;
 854 }
 855
 856 - (NSString *) cy$toCYON:(bool)objective {
 857     NSString *value([self boolValue] ? @"true" : @"false");
 858     return objective ? value : [NSString stringWithFormat:@"@%@", value];
 859 }
 860
 861 - (JSValueRef) cy$valueOfInContext:(JSContextRef)context { CYObjectiveTry_(context) {
 862     return CYCastJSValue(context, (bool) [self boolValue]);
 863 } CYObjectiveCatch }
 864
 865 @end
 866 #endif
 867 /* }}} */
 868 /* Bridge: NSDictionary {{{ */
 869 @implementation NSDictionary (Cycript)
 870
 871 - (id) cy$box {
 872     return [[self mutableCopy] autorelease];
 873 }
 874
 875 - (NSString *) cy$toCYON:(bool)objective {
 876     NSMutableString *json([[[NSMutableString alloc] init] autorelease]);
 877     [json appendString:@"@{"];
 878
 879     bool comma(false);
 880 #ifdef __APPLE__
 881     for (NSObject *key in self) {
 882 #else
 883     NSEnumerator *keys([self keyEnumerator]);
 884     while (NSObject *key = [keys nextObject]) {
 885 #endif
 886         if (comma)
 887             [json appendString:@","];
 888         else
 889             comma = true;
 890         [json appendString:CYCastNSCYON(key, true)];
 891         [json appendString:@":"];
 892         NSObject *object([self objectForKey:key]);
 893         [json appendString:CYCastNSCYON(object, true)];
 894     }
 895
 896     [json appendString:@"}"];
 897     return json;
 898 }
 899
 900 - (bool) cy$hasProperty:(NSString *)name {
 901     return [self objectForKey:name] != nil;
 902 }
 903
 904 - (NSObject *) cy$getProperty:(NSString *)name {
 905     return [self objectForKey:name];
 906 }
 907
 908 - (void) cy$getPropertyNames:(JSPropertyNameAccumulatorRef)names inContext:(JSContextRef)context {
 909     [super cy$getPropertyNames:names inContext:context];
 910
 911 #ifdef __APPLE__
 912     for (NSObject *key in self) {
 913 #else
 914     NSEnumerator *keys([self keyEnumerator]);
 915     while (NSObject *key = [keys nextObject]) {
 916 #endif
 917         JSPropertyNameAccumulatorAddName(names, CYJSString(context, key));
 918     }
 919 }
 920
 921 + (bool) cy$hasImplicitProperties {
 922     return false;
 923 }
 924
 925 @end
 926 /* }}} */
 927 /* Bridge: NSMutableArray {{{ */
 928 @implementation NSMutableArray (Cycript)
 929
 930 - (bool) cy$setProperty:(NSString *)name to:(NSObject *)value {
 931     if ([name isEqualToString:@"length"]) {
 932         // XXX: is this not intelligent?
 933         NSNumber *number(reinterpret_cast<NSNumber *>(value));
 934 #ifdef __APPLE__
 935         NSUInteger size([number unsignedIntegerValue]);
 936 #else
 937         NSUInteger size([number unsignedIntValue]);
 938 #endif
 939         NSUInteger count([self count]);
 940         if (size < count)
 941             [self removeObjectsInRange:NSMakeRange(size, count - size)];
 942         else if (size != count) {
 943             WebUndefined *undefined([WebUndefined undefined]);
 944             for (size_t i(count); i != size; ++i)
 945                 [self addObject:undefined];
 946         }
 947         return true;
 948     }
 949
 950     size_t index(CYGetIndex(name));
 951     if (index == _not(size_t))
 952         return [super cy$setProperty:name to:value];
 953
 954     id object(value ?: [NSNull null]);
 955
 956     size_t count([self count]);
 957     if (index < count)
 958         [self replaceObjectAtIndex:index withObject:object];
 959     else {
 960         if (index != count) {
 961             WebUndefined *undefined([WebUndefined undefined]);
 962             for (size_t i(count); i != index; ++i)
 963                 [self addObject:undefined];
 964         }
 965
 966         [self addObject:object];
 967     }
 968
 969     return true;
 970 }
 971
 972 - (bool) cy$deleteProperty:(NSString *)name {
 973     size_t index(CYGetIndex(name));
 974     if (index == _not(size_t) || index >= [self count])
 975         return [super cy$deleteProperty:name];
 976     [self replaceObjectAtIndex:index withObject:[WebUndefined undefined]];
 977     return true;
 978 }
 979
 980 @end
 981 /* }}} */
 982 /* Bridge: NSMutableDictionary {{{ */
 983 @implementation NSMutableDictionary (Cycript)
 984
 985 - (bool) cy$setProperty:(NSString *)name to:(NSObject *)value {
 986     [self setObject:(value ?: [NSNull null]) forKey:name];
 987     return true;
 988 }
 989
 990 - (bool) cy$deleteProperty:(NSString *)name {
 991     if ([self objectForKey:name] == nil)
 992         return false;
 993     else {
 994         [self removeObjectForKey:name];
 995         return true;
 996     }
 997 }
 998
 999 @end
1000 /* }}} */
1001 /* Bridge: NSNumber {{{ */
1002 @implementation NSNumber (Cycript)
1003
1004 - (JSType) cy$JSType {
1005 #ifdef __APPLE__
1006     // XXX: this just seems stupid
1007     if ([self class] == NSCFBoolean_)
1008         return kJSTypeBoolean;
1009 #endif
1010     return kJSTypeNumber;
1011 }
1012
1013 - (NSString *) cy$toCYON:(bool)objective {
1014     NSString *value([self cy$JSType] != kJSTypeBoolean ? [self stringValue] : [self boolValue] ? @"true" : @"false");
1015     return objective ? value : [NSString stringWithFormat:@"@%@", value];
1016 }
1017
1018 - (JSValueRef) cy$valueOfInContext:(JSContextRef)context { CYObjectiveTry_(context) {
1019     return [self cy$JSType] != kJSTypeBoolean ? CYCastJSValue(context, [self doubleValue]) : CYCastJSValue(context, static_cast<bool>([self boolValue]));
1020 } CYObjectiveCatch }
1021
1022 @end
1023 /* }}} */
1024 /* Bridge: NSNull {{{ */
1025 @implementation NSNull (Cycript)
1026
1027 - (JSType) cy$JSType {
1028     return kJSTypeNull;
1029 }
1030
1031 - (NSString *) cy$toCYON:(bool)objective {
1032     NSString *value(@"null");
1033     return objective ? value : [NSString stringWithFormat:@"@%@", value];
1034 }
1035
1036 - (JSValueRef) cy$valueOfInContext:(JSContextRef)context { CYObjectiveTry_(context) {
1037     return CYJSNull(context);
1038 } CYObjectiveCatch }
1039
1040 @end
1041 /* }}} */
1042 /* Bridge: NSObject {{{ */
1043 @implementation NSObject (Cycript)
1044
1045 - (id) cy$box {
1046     return self;
1047 }
1048
1049 - (JSValueRef) cy$toJSON:(NSString *)key inContext:(JSContextRef)context {
1050     return [self cy$valueOfInContext:context];
1051 }
1052
1053 - (JSValueRef) cy$valueOfInContext:(JSContextRef)context { CYObjectiveTry_(context) {
1054     return NULL;
1055 } CYObjectiveCatch }
1056
1057 - (JSType) cy$JSType {
1058     return kJSTypeObject;
1059 }
1060
1061 - (NSString *) cy$toCYON:(bool)objective {
1062     return [[self description] cy$toCYON:objective];
1063 }
1064
1065 - (bool) cy$hasProperty:(NSString *)name {
1066     return false;
1067 }
1068
1069 - (NSObject *) cy$getProperty:(NSString *)name {
1070     return nil;
1071 }
1072
1073 - (JSValueRef) cy$getProperty:(NSString *)name inContext:(JSContextRef)context { CYObjectiveTry_(context) {
1074     if (NSObject *value = [self cy$getProperty:name])
1075         return CYCastJSValue(context, value);
1076     return NULL;
1077 } CYObjectiveCatch }
1078
1079 - (bool) cy$setProperty:(NSString *)name to:(NSObject *)value {
1080     return false;
1081 }
1082
1083 - (bool) cy$deleteProperty:(NSString *)name {
1084     return false;
1085 }
1086
1087 - (void) cy$getPropertyNames:(JSPropertyNameAccumulatorRef)names inContext:(JSContextRef)context {
1088 }
1089
1090 + (bool) cy$hasImplicitProperties {
1091     return true;
1092 }
1093
1094 @end
1095 /* }}} */
1096 /* Bridge: NSProxy {{{ */
1097 @implementation NSProxy (Cycript)
1098
1099 - (NSString *) cy$toCYON:(bool)objective {
1100     return [[self description] cy$toCYON:objective];
1101 }
1102
1103 @end
1104 /* }}} */
1105 /* Bridge: NSString {{{ */
1106 @implementation NSString (Cycript)
1107
1108 - (id) cy$box {
1109     return [[self copy] autorelease];
1110 }
1111
1112 - (JSType) cy$JSType {
1113     return kJSTypeString;
1114 }
1115
1116 - (NSString *) cy$toCYON:(bool)objective {
1117     std::ostringstream str;
1118     if (!objective)
1119         str << '@';
1120     CYUTF8String string(CYCastUTF8String(self));
1121     CYStringify(str, string.data, string.size);
1122     std::string value(str.str());
1123     return CYCastNSString(NULL, CYUTF8String(value.c_str(), value.size()));
1124 }
1125
1126 - (bool) cy$hasProperty:(NSString *)name {
1127     size_t index(CYGetIndex(name));
1128     if (index == _not(size_t) || index >= [self length])
1129         return [super cy$hasProperty:name];
1130     else
1131         return true;
1132 }
1133
1134 - (NSObject *) cy$getProperty:(NSString *)name {
1135     size_t index(CYGetIndex(name));
1136     if (index == _not(size_t) || index >= [self length])
1137         return [super cy$getProperty:name];
1138     else
1139         return [self substringWithRange:NSMakeRange(index, 1)];
1140 }
1141
1142 - (void) cy$getPropertyNames:(JSPropertyNameAccumulatorRef)names inContext:(JSContextRef)context {
1143     [super cy$getPropertyNames:names inContext:context];
1144
1145     for (size_t index(0), length([self length]); index != length; ++index) {
1146         char name[32];
1147         sprintf(name, "%zu", index);
1148         JSPropertyNameAccumulatorAddName(names, CYJSString(name));
1149     }
1150 }
1151
1152 - (JSValueRef) cy$valueOfInContext:(JSContextRef)context { CYObjectiveTry_(context) {
1153     return CYCastJSValue(context, CYJSString(context, self));
1154 } CYObjectiveCatch }
1155
1156 @end
1157 /* }}} */
1158 /* Bridge: WebUndefined {{{ */
1159 @implementation WebUndefined (Cycript)
1160
1161 - (JSType) cy$JSType {
1162     return kJSTypeUndefined;
1163 }
1164
1165 - (NSString *) cy$toCYON:(bool)objective {
1166     NSString *value(@"undefined");
1167     return value; // XXX: maybe use the below code, adding @undefined?
1168     //return objective ? value : [NSString stringWithFormat:@"@%@", value];
1169 }
1170
1171 - (JSValueRef) cy$valueOfInContext:(JSContextRef)context { CYObjectiveTry_(context) {
1172     return CYJSUndefined(context);
1173 } CYObjectiveCatch }
1174
1175 @end
1176 /* }}} */
1177
1178 static bool CYIsClass(id self) {
1179 #ifdef __APPLE__
1180     return class_isMetaClass(object_getClass(self));
1181 #else
1182     return GSObjCIsClass(self);
1183 #endif
1184 }
1185
1186 Class CYCastClass(CYPool &pool, JSContextRef context, JSValueRef value) {
1187     id self(CYCastNSObject(&pool, context, value));
1188     if (CYIsClass(self))
1189         return (Class) self;
1190     throw CYJSError(context, "got something that is not a Class");
1191     return NULL;
1192 }
1193
1194 NSArray *CYCastNSArray(JSContextRef context, JSPropertyNameArrayRef names) {
1195     CYPool pool;
1196     size_t size(JSPropertyNameArrayGetCount(names));
1197     NSMutableArray *array([NSMutableArray arrayWithCapacity:size]);
1198     for (size_t index(0); index != size; ++index)
1199         [array addObject:CYCastNSString(&pool, context, JSPropertyNameArrayGetNameAtIndex(names, index))];
1200     return array;
1201 }
1202
1203 JSValueRef CYCastJSValue(JSContextRef context, NSObject *value) { CYPoolTry {
1204     if (value == nil)
1205         return CYJSNull(context);
1206     else
1207         return CYMakeInstance(context, value, false);
1208 } CYPoolCatch(NULL) return /*XXX*/ NULL; }
1209
1210 @implementation CYJSObject
1211
1212 - (id) initWithJSObject:(JSObjectRef)object inContext:(JSContextRef)context { CYObjectiveTry {
1213     if ((self = [super init]) != nil) {
1214         object_ = object;
1215         context_ = CYGetJSContext(context);
1216         JSGlobalContextRetain(context_);
1217         JSValueProtect(context_, object_);
1218     } return self;
1219 } CYObjectiveCatch }
1220
1221 - (void) dealloc { CYObjectiveTry {
1222     JSValueUnprotect(context_, object_);
1223     JSGlobalContextRelease(context_);
1224     [super dealloc];
1225 } CYObjectiveCatch }
1226
1227 - (NSString *) cy$toCYON:(bool)objective { CYObjectiveTry {
1228     CYPool pool;
1229     JSValueRef exception(NULL);
1230     const char *cyon(CYPoolCCYON(pool, context_, object_));
1231     CYThrow(context_, exception);
1232     if (cyon == NULL)
1233         return [super cy$toCYON:objective];
1234     else
1235         return [NSString stringWithUTF8String:cyon];
1236 } CYObjectiveCatch }
1237
1238 - (NSUInteger) count { CYObjectiveTry {
1239     JSPropertyNameArrayRef names(JSObjectCopyPropertyNames(context_, object_));
1240     size_t size(JSPropertyNameArrayGetCount(names));
1241     JSPropertyNameArrayRelease(names);
1242     return size;
1243 } CYObjectiveCatch }
1244
1245 - (id) objectForKey:(id)key { CYObjectiveTry {
1246     JSValueRef value(CYGetProperty(context_, object_, CYJSString(context_, (NSObject *) key)));
1247     if (JSValueIsUndefined(context_, value))
1248         return nil;
1249     return CYCastNSObject(NULL, context_, value) ?: [NSNull null];
1250 } CYObjectiveCatch }
1251
1252 - (NSEnumerator *) keyEnumerator { CYObjectiveTry {
1253     JSPropertyNameArrayRef names(JSObjectCopyPropertyNames(context_, object_));
1254     NSEnumerator *enumerator([CYCastNSArray(context_, names) objectEnumerator]);
1255     JSPropertyNameArrayRelease(names);
1256     return enumerator;
1257 } CYObjectiveCatch }
1258
1259 - (void) setObject:(id)object forKey:(id)key { CYObjectiveTry {
1260     CYSetProperty(context_, object_, CYJSString(context_, (NSObject *) key), CYCastJSValue(context_, (NSString *) object));
1261 } CYObjectiveCatch }
1262
1263 - (void) removeObjectForKey:(id)key { CYObjectiveTry {
1264     JSValueRef exception(NULL);
1265     (void) JSObjectDeleteProperty(context_, object_, CYJSString(context_, (NSObject *) key), &exception);
1266     CYThrow(context_, exception);
1267 } CYObjectiveCatch }
1268
1269 @end
1270
1271 @implementation CYJSArray
1272
1273 - (NSString *) cy$toCYON:(bool)objective {
1274     CYPool pool;
1275     return [NSString stringWithUTF8String:CYPoolCCYON(pool, context_, object_)];
1276 }
1277
1278 - (id) initWithJSObject:(JSObjectRef)object inContext:(JSContextRef)context { CYObjectiveTry {
1279     if ((self = [super init]) != nil) {
1280         object_ = object;
1281         context_ = CYGetJSContext(context);
1282         JSGlobalContextRetain(context_);
1283         JSValueProtect(context_, object_);
1284     } return self;
1285 } CYObjectiveCatch }
1286
1287 - (void) dealloc { CYObjectiveTry {
1288     JSValueUnprotect(context_, object_);
1289     JSGlobalContextRelease(context_);
1290     [super dealloc];
1291 } CYObjectiveCatch }
1292
1293 - (NSUInteger) count { CYObjectiveTry {
1294     return CYArrayLength(context_, object_);
1295 } CYObjectiveCatch }
1296
1297 - (id) objectAtIndex:(NSUInteger)index { CYObjectiveTry {
1298     size_t bounds([self count]);
1299     if (index >= bounds)
1300         @throw [NSException exceptionWithName:NSRangeException reason:[NSString stringWithFormat:@"*** -[CYJSArray objectAtIndex:]: index (%zu) beyond bounds (%zu)", static_cast<size_t>(index), bounds] userInfo:nil];
1301     JSValueRef exception(NULL);
1302     JSValueRef value(JSObjectGetPropertyAtIndex(context_, object_, index, &exception));
1303     CYThrow(context_, exception);
1304     return CYCastNSObject(NULL, context_, value) ?: [NSNull null];
1305 } CYObjectiveCatch }
1306
1307 - (void) addObject:(id)object { CYObjectiveTry {
1308     CYArrayPush(context_, object_, CYCastJSValue(context_, (NSObject *) object));
1309 } CYObjectiveCatch }
1310
1311 - (void) insertObject:(id)object atIndex:(NSUInteger)index { CYObjectiveTry {
1312     size_t bounds([self count] + 1);
1313     if (index >= bounds)
1314         @throw [NSException exceptionWithName:NSRangeException reason:[NSString stringWithFormat:@"*** -[CYJSArray insertObject:atIndex:]: index (%zu) beyond bounds (%zu)", static_cast<size_t>(index), bounds] userInfo:nil];
1315     JSValueRef exception(NULL);
1316     JSValueRef arguments[3];
1317     arguments[0] = CYCastJSValue(context_, index);
1318     arguments[1] = CYCastJSValue(context_, 0);
1319     arguments[2] = CYCastJSValue(context_, (NSObject *) object);
1320     JSObjectRef Array(CYGetCachedObject(context_, CYJSString("Array_prototype")));
1321     JSObjectCallAsFunction(context_, CYCastJSObject(context_, CYGetProperty(context_, Array, splice_s)), object_, 3, arguments, &exception);
1322     CYThrow(context_, exception);
1323 } CYObjectiveCatch }
1324
1325 - (void) removeLastObject { CYObjectiveTry {
1326     JSValueRef exception(NULL);
1327     JSObjectRef Array(CYGetCachedObject(context_, CYJSString("Array_prototype")));
1328     JSObjectCallAsFunction(context_, CYCastJSObject(context_, CYGetProperty(context_, Array, pop_s)), object_, 0, NULL, &exception);
1329     CYThrow(context_, exception);
1330 } CYObjectiveCatch }
1331
1332 - (void) removeObjectAtIndex:(NSUInteger)index { CYObjectiveTry {
1333     size_t bounds([self count]);
1334     if (index >= bounds)
1335         @throw [NSException exceptionWithName:NSRangeException reason:[NSString stringWithFormat:@"*** -[CYJSArray removeObjectAtIndex:]: index (%zu) beyond bounds (%zu)", static_cast<size_t>(index), bounds] userInfo:nil];
1336     JSValueRef exception(NULL);
1337     JSValueRef arguments[2];
1338     arguments[0] = CYCastJSValue(context_, index);
1339     arguments[1] = CYCastJSValue(context_, 1);
1340     JSObjectRef Array(CYGetCachedObject(context_, CYJSString("Array_prototype")));
1341     JSObjectCallAsFunction(context_, CYCastJSObject(context_, CYGetProperty(context_, Array, splice_s)), object_, 2, arguments, &exception);
1342     CYThrow(context_, exception);
1343 } CYObjectiveCatch }
1344
1345 - (void) replaceObjectAtIndex:(NSUInteger)index withObject:(id)object { CYObjectiveTry {
1346     size_t bounds([self count]);
1347     if (index >= bounds)
1348         @throw [NSException exceptionWithName:NSRangeException reason:[NSString stringWithFormat:@"*** -[CYJSArray replaceObjectAtIndex:withObject:]: index (%zu) beyond bounds (%zu)", static_cast<size_t>(index), bounds] userInfo:nil];
1349     CYSetProperty(context_, object_, index, CYCastJSValue(context_, (NSObject *) object));
1350 } CYObjectiveCatch }
1351
1352 @end
1353
1354 // XXX: inherit from or replace with CYJSObject
1355 @interface CYInternal : NSObject {
1356     JSGlobalContextRef context_;
1357     JSObjectRef object_;
1358 }
1359
1360 @end
1361
1362 @implementation CYInternal
1363
1364 - (void) dealloc {
1365     JSValueUnprotect(context_, object_);
1366     JSGlobalContextRelease(context_);
1367     [super dealloc];
1368 }
1369
1370 - (id) initInContext:(JSContextRef)context {
1371     if ((self = [super init]) != nil) {
1372         context_ = CYGetJSContext(context);
1373         JSGlobalContextRetain(context_);
1374     } return self;
1375 }
1376
1377 - (bool) hasProperty:(JSStringRef)name inContext:(JSContextRef)context {
1378     if (object_ == NULL)
1379         return false;
1380
1381     return JSObjectHasProperty(context, object_, name);
1382 }
1383
1384 - (JSValueRef) getProperty:(JSStringRef)name inContext:(JSContextRef)context {
1385     if (object_ == NULL)
1386         return NULL;
1387
1388     return CYGetProperty(context, object_, name);
1389 }
1390
1391 - (void) setProperty:(JSStringRef)name toValue:(JSValueRef)value inContext:(JSContextRef)context {
1392     @synchronized (self) {
1393         if (object_ == NULL) {
1394             object_ = JSObjectMake(context, NULL, NULL);
1395             JSValueProtect(context, object_);
1396         }
1397     }
1398
1399     CYSetProperty(context, object_, name, value);
1400 }
1401
1402 + (CYInternal *) get:(id)object {
1403     if ($objc_getAssociatedObject == NULL)
1404         return nil;
1405
1406     @synchronized (object) {
1407         if (CYInternal *internal = $objc_getAssociatedObject(object, @selector(cy$internal)))
1408             return internal;
1409     }
1410
1411     return nil;
1412 }
1413
1414 + (CYInternal *) set:(id)object inContext:(JSContextRef)context {
1415     if ($objc_getAssociatedObject == NULL)
1416         return nil;
1417
1418     @synchronized (object) {
1419         if (CYInternal *internal = $objc_getAssociatedObject(object, @selector(cy$internal)))
1420             return internal;
1421
1422         if ($objc_setAssociatedObject == NULL)
1423             return nil;
1424
1425         CYInternal *internal([[[CYInternal alloc] initInContext:context] autorelease]);
1426         objc_setAssociatedObject(object, @selector(cy$internal), internal, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
1427         return internal;
1428     }
1429
1430     return nil;
1431 }
1432
1433 @end
1434
1435 static JSObjectRef CYMakeSelector(JSContextRef context, SEL sel) {
1436     Selector_privateData *internal(new Selector_privateData(sel));
1437     return JSObjectMake(context, Selector_, internal);
1438 }
1439
1440 static SEL CYCastSEL(JSContextRef context, JSValueRef value) {
1441     if (JSValueIsObjectOfClass(context, value, Selector_)) {
1442         Selector_privateData *internal(reinterpret_cast<Selector_privateData *>(JSObjectGetPrivate((JSObjectRef) value)));
1443         return reinterpret_cast<SEL>(internal->value_);
1444     } else
1445         return CYCastPointer<SEL>(context, value);
1446 }
1447
1448 void *CYObjectiveC_ExecuteStart(JSContextRef context) { CYSadTry {
1449     return (void *) [[NSAutoreleasePool alloc] init];
1450 } CYSadCatch(NULL) }
1451
1452 void CYObjectiveC_ExecuteEnd(JSContextRef context, void *handle) { CYSadTry {
1453     return [(NSAutoreleasePool *) handle release];
1454 } CYSadCatch() }
1455
1456 JSValueRef CYObjectiveC_RuntimeProperty(JSContextRef context, CYUTF8String name) { CYPoolTry {
1457     if (name == "nil")
1458         return Instance::Make(context, nil);
1459     if (Class _class = objc_getClass(name.data))
1460         return CYMakeInstance(context, _class, true);
1461     if (Protocol *protocol = objc_getProtocol(name.data))
1462         return CYMakeInstance(context, protocol, true);
1463     return NULL;
1464 } CYPoolCatch(NULL) return /*XXX*/ NULL; }
1465
1466 static void CYObjectiveC_CallFunction(JSContextRef context, ffi_cif *cif, void (*function)(), uint8_t *value, void **values) { CYSadTry {
1467     ffi_call(cif, function, value, values);
1468 } CYSadCatch() }
1469
1470 static bool CYObjectiveC_PoolFFI(CYPool *pool, JSContextRef context, sig::Type *type, ffi_type *ffi, void *data, JSValueRef value) { CYSadTry {
1471     switch (type->primitive) {
1472         // XXX: do something epic about blocks
1473         case sig::block_P:
1474         case sig::object_P:
1475         case sig::typename_P:
1476             // XXX: this works for return values, but not for properties and fields
1477             *reinterpret_cast<id *>(data) = CYCastNSObject(pool, context, value);
1478         break;
1479
1480         case sig::selector_P:
1481             *reinterpret_cast<SEL *>(data) = CYCastSEL(context, value);
1482         break;
1483
1484         default:
1485             return false;
1486     }
1487
1488     return true;
1489 } CYSadCatch(false) }
1490
1491 static JSValueRef CYObjectiveC_FromFFI(JSContextRef context, sig::Type *type, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) { CYPoolTry {
1492     switch (type->primitive) {
1493         // XXX: do something epic about blocks
1494         case sig::block_P:
1495         case sig::object_P:
1496             if (NSObject *object = *reinterpret_cast<NSObject **>(data)) {
1497                 JSValueRef value(CYCastJSValue(context, object));
1498                 if (initialize)
1499                     [object release];
1500                 return value;
1501             } else goto null;
1502
1503         case sig::typename_P:
1504             return CYMakeInstance(context, *reinterpret_cast<Class *>(data), true);
1505
1506         case sig::selector_P:
1507             if (SEL sel = *reinterpret_cast<SEL *>(data))
1508                 return CYMakeSelector(context, sel);
1509             else goto null;
1510
1511         null:
1512             return CYJSNull(context);
1513         default:
1514             return NULL;
1515     }
1516 } CYPoolCatch(NULL) return /*XXX*/ NULL; }
1517
1518 static bool CYImplements(id object, Class _class, SEL selector, bool devoid = false) {
1519     if (objc_method *method = class_getInstanceMethod(_class, selector)) {
1520         if (!devoid)
1521             return true;
1522 #if OBJC_API_VERSION >= 2
1523         char type[16];
1524         method_getReturnType(method, type, sizeof(type));
1525 #else
1526         const char *type(method_getTypeEncoding(method));
1527 #endif
1528         if (type[0] != 'v')
1529             return true;
1530     }
1531
1532     // XXX: possibly use a more "awesome" check?
1533     return false;
1534 }
1535
1536 static const char *CYPoolTypeEncoding(CYPool &pool, JSContextRef context, SEL sel, objc_method *method) {
1537     if (method != NULL)
1538         return method_getTypeEncoding(method);
1539
1540     const char *name(sel_getName(sel));
1541     size_t length(strlen(name));
1542
1543     char keyed[length + 2];
1544     keyed[0] = '6';
1545     keyed[length + 1] = '\0';
1546     memcpy(keyed + 1, name, length);
1547
1548     if (CYBridgeEntry *entry = CYBridgeHash(keyed, length + 1))
1549         return entry->value_;
1550
1551     return NULL;
1552 }
1553
1554 static JSValueRef MessageAdapter_(JSContextRef context, size_t count, JSValueRef values[], JSObjectRef function) {
1555     JSObjectRef _this(CYCastJSObject(context, values[0]));
1556     return CYCallAsFunction(context, function, _this, count - 2, values + 2);
1557 }
1558
1559 static void MessageClosure_(ffi_cif *cif, void *result, void **arguments, void *arg) {
1560     CYExecuteClosure(cif, result, arguments, arg, &MessageAdapter_);
1561 }
1562
1563 static JSObjectRef CYMakeMessage(JSContextRef context, SEL sel, IMP imp, const char *type) {
1564     Message_privateData *internal(new Message_privateData(sel, type, imp));
1565     return JSObjectMake(context, Message_, internal);
1566 }
1567
1568 static IMP CYMakeMessage(JSContextRef context, JSValueRef value, const char *type) {
1569     JSObjectRef function(CYCastJSObject(context, value));
1570     Closure_privateData *internal(CYMakeFunctor_(context, function, type, &MessageClosure_));
1571     // XXX: see notes in Library.cpp about needing to leak
1572     return reinterpret_cast<IMP>(internal->GetValue());
1573 }
1574
1575 static bool Messages_hasProperty(JSContextRef context, JSObjectRef object, JSStringRef property) {
1576     Messages *internal(reinterpret_cast<Messages *>(JSObjectGetPrivate(object)));
1577     Class _class(internal->GetValue());
1578
1579     CYPool pool;
1580     const char *name(CYPoolCString(pool, context, property));
1581
1582     if (SEL sel = sel_getUid(name))
1583         if (class_getInstanceMethod(_class, sel) != NULL)
1584             return true;
1585
1586     return false;
1587 }
1588
1589 static JSValueRef Messages_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) {
1590     Messages *internal(reinterpret_cast<Messages *>(JSObjectGetPrivate(object)));
1591     Class _class(internal->GetValue());
1592
1593     CYPool pool;
1594     const char *name(CYPoolCString(pool, context, property));
1595
1596     if (SEL sel = sel_getUid(name))
1597         if (objc_method *method = class_getInstanceMethod(_class, sel))
1598             return CYMakeMessage(context, sel, method_getImplementation(method), method_getTypeEncoding(method));
1599
1600     return NULL;
1601 }
1602
1603 static bool Messages_setProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef value, JSValueRef *exception) {
1604     Messages *internal(reinterpret_cast<Messages *>(JSObjectGetPrivate(object)));
1605     Class _class(internal->GetValue());
1606
1607     CYPool pool;
1608     const char *name(CYPoolCString(pool, context, property));
1609
1610     SEL sel(sel_registerName(name));
1611
1612     objc_method *method(class_getInstanceMethod(_class, sel));
1613
1614     const char *type;
1615     IMP imp;
1616
1617     if (JSValueIsObjectOfClass(context, value, Message_)) {
1618         Message_privateData *message(reinterpret_cast<Message_privateData *>(JSObjectGetPrivate((JSObjectRef) value)));
1619         type = sig::Unparse(pool, &message->signature_);
1620         imp = reinterpret_cast<IMP>(message->GetValue());
1621     } else {
1622         type = CYPoolTypeEncoding(pool, context, sel, method);
1623         imp = CYMakeMessage(context, value, type);
1624     }
1625
1626     if (method != NULL)
1627         method_setImplementation(method, imp);
1628     else {
1629 #ifdef GNU_RUNTIME
1630         GSMethodList list(GSAllocMethodList(1));
1631         GSAppendMethodToList(list, sel, type, imp, YES);
1632         GSAddMethodList(_class, list, YES);
1633         GSFlushMethodCacheForClass(_class);
1634 #else
1635         class_addMethod(_class, sel, imp, type);
1636 #endif
1637     }
1638
1639     return true;
1640 }
1641
1642 #if 0 && OBJC_API_VERSION < 2
1643 static bool Messages_deleteProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) {
1644     Messages *internal(reinterpret_cast<Messages *>(JSObjectGetPrivate(object)));
1645     Class _class(internal->GetValue());
1646
1647     CYPool pool;
1648     const char *name(CYPoolCString(pool, context, property));
1649
1650     if (SEL sel = sel_getUid(name))
1651         if (objc_method *method = class_getInstanceMethod(_class, sel)) {
1652             objc_method_list list = {NULL, 1, {method}};
1653             class_removeMethods(_class, &list);
1654             return true;
1655         }
1656
1657     return false;
1658 }
1659 #endif
1660
1661 static void Messages_getPropertyNames(JSContextRef context, JSObjectRef object, JSPropertyNameAccumulatorRef names) {
1662     Messages *internal(reinterpret_cast<Messages *>(JSObjectGetPrivate(object)));
1663     Class _class(internal->GetValue());
1664
1665 #if OBJC_API_VERSION >= 2
1666     unsigned int size;
1667     objc_method **data(class_copyMethodList(_class, &size));
1668     for (size_t i(0); i != size; ++i)
1669         JSPropertyNameAccumulatorAddName(names, CYJSString(sel_getName(method_getName(data[i]))));
1670     free(data);
1671 #else
1672     for (objc_method_list *methods(_class->methods); methods != NULL; methods = methods->method_next)
1673         for (int i(0); i != methods->method_count; ++i)
1674             JSPropertyNameAccumulatorAddName(names, CYJSString(sel_getName(method_getName(&methods->method_list[i]))));
1675 #endif
1676 }
1677
1678 static bool CYHasImplicitProperties(Class _class) {
1679     // XXX: this is an evil hack to deal with NSProxy; fix elsewhere
1680     if (!CYImplements(_class, object_getClass(_class), @selector(cy$hasImplicitProperties)))
1681         return true;
1682     return [_class cy$hasImplicitProperties];
1683 }
1684
1685 static bool Instance_hasProperty(JSContextRef context, JSObjectRef object, JSStringRef property) {
1686     Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(object)));
1687     id self(internal->GetValue());
1688
1689     if (JSStringIsEqualToUTF8CString(property, "$cyi"))
1690         return true;
1691
1692     CYPool pool;
1693     NSString *name(CYCastNSString(&pool, context, property));
1694
1695     if (CYInternal *internal = [CYInternal get:self])
1696         if ([internal hasProperty:property inContext:context])
1697             return true;
1698
1699     Class _class(object_getClass(self));
1700
1701     CYPoolTry {
1702         // XXX: this is an evil hack to deal with NSProxy; fix elsewhere
1703         if (CYImplements(self, _class, @selector(cy$hasProperty:)))
1704             if ([self cy$hasProperty:name])
1705                 return true;
1706     } CYPoolCatch(false)
1707
1708     const char *string(CYPoolCString(pool, context, name));
1709
1710 #ifdef __APPLE__
1711     if (class_getProperty(_class, string) != NULL)
1712         return true;
1713 #endif
1714
1715     if (CYHasImplicitProperties(_class))
1716         if (SEL sel = sel_getUid(string))
1717             if (CYImplements(self, _class, sel, true))
1718                 return true;
1719
1720     return false;
1721 }
1722
1723 static JSValueRef Instance_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1724     Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(object)));
1725     id self(internal->GetValue());
1726
1727     if (JSStringIsEqualToUTF8CString(property, "$cyi"))
1728         return Internal::Make(context, self, object);
1729
1730     CYPool pool;
1731     NSString *name(CYCastNSString(&pool, context, property));
1732
1733     if (CYInternal *internal = [CYInternal get:self])
1734         if (JSValueRef value = [internal getProperty:property inContext:context])
1735             return value;
1736
1737     CYPoolTry {
1738         if (JSValueRef value = [self cy$getProperty:name inContext:context])
1739             return value;
1740     } CYPoolCatch(NULL)
1741
1742     const char *string(CYPoolCString(pool, context, name));
1743     Class _class(object_getClass(self));
1744
1745 #ifdef __APPLE__
1746     if (objc_property_t property = class_getProperty(_class, string)) {
1747         PropertyAttributes attributes(property);
1748         SEL sel(sel_registerName(attributes.Getter()));
1749         return CYSendMessage(pool, context, self, NULL, sel, 0, NULL, false, exception);
1750     }
1751 #endif
1752
1753     if (CYHasImplicitProperties(_class))
1754         if (SEL sel = sel_getUid(string))
1755             if (CYImplements(self, _class, sel, true))
1756                 return CYSendMessage(pool, context, self, NULL, sel, 0, NULL, false, exception);
1757
1758     return NULL;
1759 } CYCatch(NULL) }
1760
1761 static bool Instance_setProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef value, JSValueRef *exception) { CYTry {
1762     Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(object)));
1763     id self(internal->GetValue());
1764
1765     CYPool pool;
1766
1767     NSString *name(CYCastNSString(&pool, context, property));
1768     NSObject *data(CYCastNSObject(&pool, context, value));
1769
1770     CYPoolTry {
1771         if ([self cy$setProperty:name to:data])
1772             return true;
1773     } CYPoolCatch(false)
1774
1775     const char *string(CYPoolCString(pool, context, name));
1776     Class _class(object_getClass(self));
1777
1778 #ifdef __APPLE__
1779     if (objc_property_t property = class_getProperty(_class, string)) {
1780         PropertyAttributes attributes(property);
1781         if (const char *setter = attributes.Setter()) {
1782             SEL sel(sel_registerName(setter));
1783             JSValueRef arguments[1] = {value};
1784             CYSendMessage(pool, context, self, NULL, sel, 1, arguments, false, exception);
1785             return true;
1786         }
1787     }
1788 #endif
1789
1790     size_t length(strlen(string));
1791
1792     char set[length + 5];
1793
1794     set[0] = 's';
1795     set[1] = 'e';
1796     set[2] = 't';
1797
1798     if (string[0] != '\0') {
1799         set[3] = toupper(string[0]);
1800         memcpy(set + 4, string + 1, length - 1);
1801     }
1802
1803     set[length + 3] = ':';
1804     set[length + 4] = '\0';
1805
1806     if (SEL sel = sel_getUid(set))
1807         if (CYImplements(self, _class, sel)) {
1808             JSValueRef arguments[1] = {value};
1809             CYSendMessage(pool, context, self, NULL, sel, 1, arguments, false, exception);
1810             return true;
1811         }
1812
1813     if (CYInternal *internal = [CYInternal set:self inContext:context]) {
1814         [internal setProperty:property toValue:value inContext:context];
1815         return true;
1816     }
1817
1818     return false;
1819 } CYCatch(false) }
1820
1821 static bool Instance_deleteProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1822     Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(object)));
1823     id self(internal->GetValue());
1824
1825     CYPoolTry {
1826         NSString *name(CYCastNSString(NULL, context, property));
1827         return [self cy$deleteProperty:name];
1828     } CYPoolCatch(false)
1829 } CYCatch(false) return /*XXX*/ false; }
1830
1831 static void Instance_getPropertyNames_message(JSPropertyNameAccumulatorRef names, objc_method *method) {
1832     const char *name(sel_getName(method_getName(method)));
1833     if (strchr(name, ':') != NULL)
1834         return;
1835
1836     const char *type(method_getTypeEncoding(method));
1837     if (type == NULL || *type == '\0' || *type == 'v')
1838         return;
1839
1840     JSPropertyNameAccumulatorAddName(names, CYJSString(name));
1841 }
1842
1843 static void Instance_getPropertyNames(JSContextRef context, JSObjectRef object, JSPropertyNameAccumulatorRef names) {
1844     Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(object)));
1845     id self(internal->GetValue());
1846
1847     CYPool pool;
1848     Class _class(object_getClass(self));
1849
1850 #ifdef __APPLE__
1851     {
1852         unsigned int size;
1853         objc_property_t *data(class_copyPropertyList(_class, &size));
1854         for (size_t i(0); i != size; ++i)
1855             JSPropertyNameAccumulatorAddName(names, CYJSString(property_getName(data[i])));
1856         free(data);
1857     }
1858 #endif
1859
1860     if (CYHasImplicitProperties(_class))
1861         for (Class current(_class); current != nil; current = class_getSuperclass(current)) {
1862 #if OBJC_API_VERSION >= 2
1863             unsigned int size;
1864             objc_method **data(class_copyMethodList(current, &size));
1865             for (size_t i(0); i != size; ++i)
1866                 Instance_getPropertyNames_message(names, data[i]);
1867             free(data);
1868 #else
1869             for (objc_method_list *methods(current->methods); methods != NULL; methods = methods->method_next)
1870                 for (int i(0); i != methods->method_count; ++i)
1871                     Instance_getPropertyNames_message(names, &methods->method_list[i]);
1872 #endif
1873         }
1874
1875     CYPoolTry {
1876         // XXX: this is an evil hack to deal with NSProxy; fix elsewhere
1877         if (CYImplements(self, _class, @selector(cy$getPropertyNames:inContext:)))
1878             [self cy$getPropertyNames:names inContext:context];
1879     } CYPoolCatch()
1880 }
1881
1882 static JSObjectRef Instance_callAsConstructor(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1883     Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(object)));
1884     JSObjectRef value(Instance::Make(context, [internal->GetValue() alloc], Instance::Uninitialized));
1885     return value;
1886 } CYCatch(NULL) }
1887
1888 static JSValueRef Instance_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1889     Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(object)));
1890     id self(internal->GetValue());
1891
1892     if (![self isKindOfClass:NSBlock_])
1893         CYThrow("non-NSBlock object is not a function");
1894     // XXX: replace above logic with the following assertion
1895     //_assert([self isKindOfClass:NSBlock_]);
1896     // to do this, make it so FunctionInstance_ is the class of blocks
1897     // to do /that/, generalize the various "is exactly Instance_" checks
1898     // then, move Instance_callAsFunction to only be on FunctionInstance
1899
1900     BlockLiteral *literal(reinterpret_cast<BlockLiteral *>(self));
1901
1902     if ((literal->flags & BLOCK_HAS_SIGNATURE) != 0) {
1903         uint8_t *descriptor(reinterpret_cast<uint8_t *>(literal->descriptor));
1904         descriptor += sizeof(BlockDescriptor1);
1905         if ((literal->flags & BLOCK_HAS_COPY_DISPOSE) != 0)
1906             descriptor += sizeof(BlockDescriptor2);
1907         BlockDescriptor3 *descriptor3(reinterpret_cast<BlockDescriptor3 *>(descriptor));
1908
1909         if (const char *type = descriptor3->signature) {
1910             CYPool pool;
1911
1912             void *setup[1];
1913             setup[0] = &self;
1914
1915             sig::Signature signature;
1916             sig::Parse(pool, &signature, type, &Structor_);
1917
1918             ffi_cif cif;
1919             sig::sig_ffi_cif(pool, &sig::ObjectiveC, &signature, &cif);
1920
1921             void (*function)() = reinterpret_cast<void (*)()>(literal->invoke);
1922             return CYCallFunction(pool, context, 1, setup, count, arguments, false, exception, &signature, &cif, function);
1923         }
1924     }
1925
1926     if (count != 0)
1927         CYThrow("NSBlock without signature field passed arguments");
1928
1929     CYPoolTry {
1930         [self invoke];
1931     } CYPoolCatch(NULL);
1932
1933     return NULL;
1934 } CYCatch(NULL) }
1935
1936 static bool Instance_hasInstance(JSContextRef context, JSObjectRef constructor, JSValueRef instance, JSValueRef *exception) { CYTry {
1937     Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate((JSObjectRef) constructor)));
1938     Class _class(internal->GetValue());
1939     if (!CYIsClass(_class))
1940         return false;
1941
1942     if (CYJSValueIsNSObject(context, instance)) {
1943         Instance *linternal(reinterpret_cast<Instance *>(JSObjectGetPrivate((JSObjectRef) instance)));
1944         // XXX: this isn't always safe
1945         return [linternal->GetValue() isKindOfClass:_class];
1946     }
1947
1948     return false;
1949 } CYCatch(false) }
1950
1951 static JSValueRef Instance_box_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1952     if (count == 0)
1953         throw CYJSError(context, "incorrect number of arguments to Instance");
1954     CYPool pool;
1955     id value(CYCastNSObject(&pool, context, arguments[0]));
1956     if (value == nil)
1957         value = [NSNull null];
1958     return CYCastJSValue(context, [value cy$box]);
1959 } CYCatch(NULL) }
1960
1961 static bool Internal_hasProperty(JSContextRef context, JSObjectRef object, JSStringRef property) {
1962     Internal *internal(reinterpret_cast<Internal *>(JSObjectGetPrivate(object)));
1963     CYPool pool;
1964
1965     id self(internal->GetValue());
1966     const char *name(CYPoolCString(pool, context, property));
1967
1968     if (object_getInstanceVariable(self, name, NULL) != NULL)
1969         return true;
1970
1971     return false;
1972 }
1973
1974 static JSValueRef Internal_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1975     Internal *internal(reinterpret_cast<Internal *>(JSObjectGetPrivate(object)));
1976     CYPool pool;
1977
1978     id self(internal->GetValue());
1979     const char *name(CYPoolCString(pool, context, property));
1980
1981     if (objc_ivar *ivar = object_getInstanceVariable(self, name, NULL)) {
1982         Type_privateData type(pool, ivar_getTypeEncoding(ivar));
1983         // XXX: if this fails and throws an exception the person we are throwing it to gets the wrong exception
1984         return CYFromFFI(context, type.type_, type.GetFFI(), reinterpret_cast<uint8_t *>(self) + ivar_getOffset(ivar));
1985     }
1986
1987     return NULL;
1988 } CYCatch(NULL) }
1989
1990 static bool Internal_setProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef value, JSValueRef *exception) { CYTry {
1991     Internal *internal(reinterpret_cast<Internal *>(JSObjectGetPrivate(object)));
1992     CYPool pool;
1993
1994     id self(internal->GetValue());
1995     const char *name(CYPoolCString(pool, context, property));
1996
1997     if (objc_ivar *ivar = object_getInstanceVariable(self, name, NULL)) {
1998         Type_privateData type(pool, ivar_getTypeEncoding(ivar));
1999         CYPoolFFI(&pool, context, type.type_, type.GetFFI(), reinterpret_cast<uint8_t *>(self) + ivar_getOffset(ivar), value);
2000         return true;
2001     }
2002
2003     return false;
2004 } CYCatch(false) }
2005
2006 static void Internal_getPropertyNames_(Class _class, JSPropertyNameAccumulatorRef names) {
2007     if (Class super = class_getSuperclass(_class))
2008         Internal_getPropertyNames_(super, names);
2009
2010 #if OBJC_API_VERSION >= 2
2011     unsigned int size;
2012     objc_ivar **data(class_copyIvarList(_class, &size));
2013     for (size_t i(0); i != size; ++i)
2014         JSPropertyNameAccumulatorAddName(names, CYJSString(ivar_getName(data[i])));
2015     free(data);
2016 #else
2017     if (objc_ivar_list *ivars = _class->ivars)
2018         for (int i(0); i != ivars->ivar_count; ++i)
2019             JSPropertyNameAccumulatorAddName(names, CYJSString(ivar_getName(&ivars->ivar_list[i])));
2020 #endif
2021 }
2022
2023 static void Internal_getPropertyNames(JSContextRef context, JSObjectRef object, JSPropertyNameAccumulatorRef names) {
2024     Internal *internal(reinterpret_cast<Internal *>(JSObjectGetPrivate(object)));
2025     CYPool pool;
2026
2027     id self(internal->GetValue());
2028     Class _class(object_getClass(self));
2029
2030     Internal_getPropertyNames_(_class, names);
2031 }
2032
2033 static JSValueRef Internal_callAsFunction_$cya(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
2034     Internal *internal(reinterpret_cast<Internal *>(JSObjectGetPrivate(object)));
2035     return internal->GetOwner();
2036 }
2037
2038 static JSValueRef ObjectiveC_Classes_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
2039     CYPool pool;
2040     NSString *name(CYCastNSString(&pool, context, property));
2041     if (Class _class = NSClassFromString(name))
2042         return CYMakeInstance(context, _class, true);
2043     return NULL;
2044 } CYCatch(NULL) }
2045
2046 static void ObjectiveC_Classes_getPropertyNames(JSContextRef context, JSObjectRef object, JSPropertyNameAccumulatorRef names) {
2047 #ifdef __APPLE__
2048     size_t size(objc_getClassList(NULL, 0));
2049     Class *data(reinterpret_cast<Class *>(malloc(sizeof(Class) * size)));
2050
2051   get:
2052     size_t writ(objc_getClassList(data, size));
2053     if (size < writ) {
2054         size = writ;
2055         if (Class *copy = reinterpret_cast<Class *>(realloc(data, sizeof(Class) * writ))) {
2056             data = copy;
2057             goto get;
2058         } else goto done;
2059     }
2060
2061     for (size_t i(0); i != writ; ++i)
2062         JSPropertyNameAccumulatorAddName(names, CYJSString(class_getName(data[i])));
2063
2064   done:
2065     free(data);
2066 #else
2067     void *state(NULL);
2068     while (Class _class = objc_next_class(&state))
2069         JSPropertyNameAccumulatorAddName(names, CYJSString(class_getName(_class)));
2070 #endif
2071 }
2072
2073 #if OBJC_API_VERSION >= 2
2074 static JSValueRef ObjectiveC_Image_Classes_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
2075     const char *internal(reinterpret_cast<const char *>(JSObjectGetPrivate(object)));
2076
2077     CYPool pool;
2078     const char *name(CYPoolCString(pool, context, property));
2079     unsigned int size;
2080     const char **data(objc_copyClassNamesForImage(internal, &size));
2081     JSValueRef value;
2082     for (size_t i(0); i != size; ++i)
2083         if (strcmp(name, data[i]) == 0) {
2084             if (Class _class = objc_getClass(name)) {
2085                 value = CYMakeInstance(context, _class, true);
2086                 goto free;
2087             } else
2088                 break;
2089         }
2090     value = NULL;
2091   free:
2092     free(data);
2093     return value;
2094 } CYCatch(NULL) }
2095
2096 static void ObjectiveC_Image_Classes_getPropertyNames(JSContextRef context, JSObjectRef object, JSPropertyNameAccumulatorRef names) {
2097     const char *internal(reinterpret_cast<const char *>(JSObjectGetPrivate(object)));
2098     unsigned int size;
2099     const char **data(objc_copyClassNamesForImage(internal, &size));
2100     for (size_t i(0); i != size; ++i)
2101         JSPropertyNameAccumulatorAddName(names, CYJSString(data[i]));
2102     free(data);
2103 }
2104
2105 static JSValueRef ObjectiveC_Images_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
2106     CYPool pool;
2107     const char *name(CYPoolCString(pool, context, property));
2108     unsigned int size;
2109     const char **data(objc_copyImageNames(&size));
2110     for (size_t i(0); i != size; ++i)
2111         if (strcmp(name, data[i]) == 0) {
2112             name = data[i];
2113             goto free;
2114         }
2115     name = NULL;
2116   free:
2117     free(data);
2118     if (name == NULL)
2119         return NULL;
2120     JSObjectRef value(JSObjectMake(context, NULL, NULL));
2121     CYSetProperty(context, value, CYJSString("classes"), JSObjectMake(context, ObjectiveC_Image_Classes_, const_cast<char *>(name)));
2122     return value;
2123 } CYCatch(NULL) }
2124
2125 static void ObjectiveC_Images_getPropertyNames(JSContextRef context, JSObjectRef object, JSPropertyNameAccumulatorRef names) {
2126     unsigned int size;
2127     const char **data(objc_copyImageNames(&size));
2128     for (size_t i(0); i != size; ++i)
2129         JSPropertyNameAccumulatorAddName(names, CYJSString(data[i]));
2130     free(data);
2131 }
2132 #endif
2133
2134 static JSValueRef ObjectiveC_Protocols_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
2135     CYPool pool;
2136     const char *name(CYPoolCString(pool, context, property));
2137     if (Protocol *protocol = objc_getProtocol(name))
2138         return CYMakeInstance(context, protocol, true);
2139     return NULL;
2140 } CYCatch(NULL) }
2141
2142 static void ObjectiveC_Protocols_getPropertyNames(JSContextRef context, JSObjectRef object, JSPropertyNameAccumulatorRef names) {
2143 #if OBJC_API_VERSION >= 2
2144     unsigned int size;
2145     Protocol **data(objc_copyProtocolList(&size));
2146     for (size_t i(0); i != size; ++i)
2147         JSPropertyNameAccumulatorAddName(names, CYJSString(protocol_getName(data[i])));
2148     free(data);
2149 #else
2150     // XXX: fix this!
2151 #endif
2152 }
2153
2154 static JSValueRef ObjectiveC_Constants_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
2155     CYPool pool;
2156     CYUTF8String name(CYPoolUTF8String(pool, context, property));
2157     if (name == "nil")
2158         return Instance::Make(context, nil);
2159     return NULL;
2160 } CYCatch(NULL) }
2161
2162 static void ObjectiveC_Constants_getPropertyNames(JSContextRef context, JSObjectRef object, JSPropertyNameAccumulatorRef names) {
2163     JSPropertyNameAccumulatorAddName(names, CYJSString("nil"));
2164 }
2165
2166 #ifdef __APPLE__
2167 #if defined(__i386__) || defined(__x86_64__)
2168 #define OBJC_MAX_STRUCT_BY_VALUE 8
2169 static int struct_forward_array[] = {
2170     0, 0, 0, 1, 0, 1, 1, 1, 0 };
2171 #elif defined(__arm__)
2172 #define OBJC_MAX_STRUCT_BY_VALUE 1
2173 static int struct_forward_array[] = {
2174     0, 0 };
2175 #else
2176 #error missing objc-runtime-info
2177 #endif
2178
2179 static bool stret(ffi_type *ffi_type) {
2180     return ffi_type->type == FFI_TYPE_STRUCT && (
2181         ffi_type->size > OBJC_MAX_STRUCT_BY_VALUE ||
2182         struct_forward_array[ffi_type->size] != 0
2183     );
2184 }
2185 #endif
2186
2187 JSValueRef CYSendMessage(CYPool &pool, JSContextRef context, id self, Class _class, SEL _cmd, size_t count, const JSValueRef arguments[], bool initialize, JSValueRef *exception) { CYTry {
2188     const char *type;
2189
2190     if (_class == NULL)
2191         _class = object_getClass(self);
2192
2193     IMP imp;
2194
2195     if (objc_method *method = class_getInstanceMethod(_class, _cmd)) {
2196         imp = method_getImplementation(method);
2197         type = method_getTypeEncoding(method);
2198     } else {
2199         imp = NULL;
2200
2201         CYPoolTry {
2202             NSMethodSignature *method([self methodSignatureForSelector:_cmd]);
2203             if (method == nil)
2204                 throw CYJSError(context, "unrecognized selector %s sent to object %p", sel_getName(_cmd), self);
2205             type = CYPoolCString(pool, context, [method _typeString]);
2206         } CYPoolCatch(NULL)
2207     }
2208
2209     void *setup[2];
2210     setup[0] = &self;
2211     setup[1] = &_cmd;
2212
2213     sig::Signature signature;
2214     sig::Parse(pool, &signature, type, &Structor_);
2215
2216     size_t used(count + 3);
2217     if (used > signature.count) {
2218         sig::Element *elements(new (pool) sig::Element[used]);
2219         memcpy(elements, signature.elements, used * sizeof(sig::Element));
2220
2221         for (size_t index(signature.count); index != used; ++index) {
2222             sig::Element *element(&elements[index]);
2223             element->name = NULL;
2224             element->offset = _not(size_t);
2225
2226             sig::Type *type(new (pool) sig::Type);
2227             memset(type, 0, sizeof(*type));
2228             type->primitive = sig::object_P;
2229             element->type = type;
2230         }
2231
2232         signature.elements = elements;
2233         signature.count = used;
2234     }
2235
2236     ffi_cif cif;
2237     sig::sig_ffi_cif(pool, &sig::ObjectiveC, &signature, &cif);
2238
2239     if (imp == NULL) {
2240 #ifdef __APPLE__
2241         if (stret(cif.rtype))
2242             imp = class_getMethodImplementation_stret(_class, _cmd);
2243         else
2244             imp = class_getMethodImplementation(_class, _cmd);
2245 #else
2246         objc_super super = {self, _class};
2247         imp = objc_msg_lookup_super(&super, _cmd);
2248 #endif
2249     }
2250
2251     void (*function)() = reinterpret_cast<void (*)()>(imp);
2252     return CYCallFunction(pool, context, 2, setup, count, arguments, initialize, exception, &signature, &cif, function);
2253 } CYCatch(NULL) }
2254
2255 static JSValueRef $objc_msgSend(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
2256     if (count < 2)
2257         throw CYJSError(context, "too few arguments to objc_msgSend");
2258
2259     CYPool pool;
2260
2261     bool uninitialized;
2262
2263     id self;
2264     SEL _cmd;
2265     Class _class;
2266
2267     if (JSValueIsObjectOfClass(context, arguments[0], Super_)) {
2268         cy::Super *internal(reinterpret_cast<cy::Super *>(JSObjectGetPrivate((JSObjectRef) arguments[0])));
2269         self = internal->GetValue();
2270         _class = internal->class_;;
2271         uninitialized = false;
2272     } else if (CYJSValueIsNSObject(context, arguments[0])) {
2273         Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate((JSObjectRef) arguments[0])));
2274         self = internal->GetValue();
2275         _class = nil;
2276         uninitialized = internal->IsUninitialized();
2277         if (uninitialized)
2278             internal->value_ = nil;
2279     } else {
2280         self = CYCastNSObject(&pool, context, arguments[0]);
2281         _class = nil;
2282         uninitialized = false;
2283     }
2284
2285     if (self == nil)
2286         return CYJSNull(context);
2287
2288     _cmd = CYCastSEL(context, arguments[1]);
2289
2290     return CYSendMessage(pool, context, self, _class, _cmd, count - 2, arguments + 2, uninitialized, exception);
2291 } CYCatch(NULL) }
2292
2293 static JSValueRef Selector_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
2294     JSValueRef setup[count + 2];
2295     setup[0] = _this;
2296     setup[1] = object;
2297     memcpy(setup + 2, arguments, sizeof(JSValueRef) * count);
2298     return $objc_msgSend(context, NULL, NULL, count + 2, setup, exception);
2299 }
2300
2301 static JSValueRef Message_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
2302     CYPool pool;
2303     Message_privateData *internal(reinterpret_cast<Message_privateData *>(JSObjectGetPrivate(object)));
2304
2305     // XXX: handle Instance::Uninitialized?
2306     id self(CYCastNSObject(&pool, context, _this));
2307
2308     void *setup[2];
2309     setup[0] = &self;
2310     setup[1] = &internal->sel_;
2311
2312     return CYCallFunction(pool, context, 2, setup, count, arguments, false, exception, &internal->signature_, &internal->cif_, internal->GetValue());
2313 }
2314
2315 static JSObjectRef Super_new(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
2316     if (count != 2)
2317         throw CYJSError(context, "incorrect number of arguments to Super constructor");
2318     CYPool pool;
2319     id self(CYCastNSObject(&pool, context, arguments[0]));
2320     Class _class(CYCastClass(pool, context, arguments[1]));
2321     return cy::Super::Make(context, self, _class);
2322 } CYCatch(NULL) }
2323
2324 static JSObjectRef Selector_new(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
2325     if (count != 1)
2326         throw CYJSError(context, "incorrect number of arguments to Selector constructor");
2327     CYPool pool;
2328     const char *name(CYPoolCString(pool, context, arguments[0]));
2329     return CYMakeSelector(context, sel_registerName(name));
2330 } CYCatch(NULL) }
2331
2332 static JSObjectRef Instance_new(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
2333     if (count > 1)
2334         throw CYJSError(context, "incorrect number of arguments to Instance constructor");
2335     id self(count == 0 ? nil : CYCastPointer<id>(context, arguments[0]));
2336     return CYMakeInstance(context, self, false);
2337 } CYCatch(NULL) }
2338
2339 static JSValueRef CYValue_getProperty_value(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) {
2340     CYValue *internal(reinterpret_cast<CYValue *>(JSObjectGetPrivate(object)));
2341     return CYCastJSValue(context, reinterpret_cast<uintptr_t>(internal->value_));
2342 }
2343
2344 static JSValueRef CYValue_callAsFunction_$cya(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
2345     CYValue *internal(reinterpret_cast<CYValue *>(JSObjectGetPrivate(_this)));
2346     Type_privateData *typical(internal->GetType());
2347
2348     sig::Type *type;
2349     ffi_type *ffi;
2350
2351     if (typical == NULL) {
2352         type = NULL;
2353         ffi = NULL;
2354     } else {
2355         type = typical->type_;
2356         ffi = typical->ffi_;
2357     }
2358
2359     return CYMakePointer(context, &internal->value_, _not(size_t), type, ffi, object);
2360 }
2361
2362 static JSValueRef Instance_getProperty_constructor(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) {
2363     Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(object)));
2364     return Instance::Make(context, (id) object_getClass(internal->GetValue()));
2365 }
2366
2367 static JSValueRef Instance_getProperty_prototype(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
2368     Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(object)));
2369     id self(internal->GetValue());
2370     if (!CYIsClass(self))
2371         return CYJSUndefined(context);
2372     return CYGetClassPrototype(context, self);
2373 } CYCatch(NULL) }
2374
2375 static JSValueRef Instance_getProperty_messages(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) {
2376     Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(object)));
2377     id self(internal->GetValue());
2378     if (!CYIsClass(self))
2379         return CYJSUndefined(context);
2380     return Messages::Make(context, (Class) self);
2381 }
2382
2383 static JSValueRef Instance_callAsFunction_toCYON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
2384     if (!CYJSValueIsNSObject(context, _this))
2385         return NULL;
2386
2387     Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(_this)));
2388     return CYCastJSValue(context, CYJSString(context, CYCastNSCYON(internal->GetValue(), false)));
2389 } CYCatch(NULL) }
2390
2391 static JSValueRef Instance_callAsFunction_toJSON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
2392     if (!CYJSValueIsNSObject(context, _this))
2393         return NULL;
2394
2395     Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(_this)));
2396     id value(internal->GetValue());
2397
2398     CYPoolTry {
2399         NSString *key;
2400         if (count == 0)
2401             key = nil;
2402         else
2403             key = CYCastNSString(NULL, context, CYJSString(context, arguments[0]));
2404
2405         if (!CYImplements(value, object_getClass(value), @selector(cy$toJSON:inContext:)))
2406             return CYJSUndefined(context);
2407         else if (JSValueRef json = [value cy$toJSON:key inContext:context])
2408             return json;
2409         else
2410             return CYCastJSValue(context, CYJSString(context, [value description]));
2411     } CYPoolCatch(NULL)
2412 } CYCatch(NULL) return /*XXX*/ NULL; }
2413
2414 static JSValueRef Instance_callAsFunction_valueOf(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
2415     if (!CYJSValueIsNSObject(context, _this))
2416         return NULL;
2417
2418     Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(_this)));
2419     id value(internal->GetValue());
2420
2421     if (![value respondsToSelector:@selector(cy$valueOfInContext:)])
2422         return _this;
2423
2424     if (JSValueRef result = [value cy$valueOfInContext:context])
2425         return result;
2426
2427     return _this;
2428 } CYCatch(NULL) return /*XXX*/ NULL; }
2429
2430 static JSValueRef Instance_callAsFunction_toPointer(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
2431     if (!CYJSValueIsNSObject(context, _this))
2432         return NULL;
2433
2434     Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(_this)));
2435     // XXX: but... but... THIS ISN'T A POINTER! :(
2436     return CYCastJSValue(context, reinterpret_cast<uintptr_t>(internal->GetValue()));
2437 } CYCatch(NULL) return /*XXX*/ NULL; }
2438
2439 static JSValueRef Instance_callAsFunction_toString(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
2440     if (!CYJSValueIsNSObject(context, _this))
2441         return NULL;
2442
2443     Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(_this)));
2444     id value(internal->GetValue());
2445
2446     CYPoolTry {
2447         // XXX: this seems like a stupid implementation; what if it crashes? why not use the CYONifier backend?
2448         return CYCastJSValue(context, CYJSString(context, [value description]));
2449     } CYPoolCatch(NULL)
2450 } CYCatch(NULL) return /*XXX*/ NULL; }
2451
2452 static JSValueRef Class_callAsFunction_pointerTo(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
2453     if (!CYJSValueIsNSObject(context, _this))
2454         return NULL;
2455
2456     Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(_this)));
2457     id value(internal->GetValue());
2458
2459     if (!CYIsClass(value))
2460         CYThrow("non-Class object cannot be used as Type");
2461
2462     // XXX: this is a very silly implementation
2463
2464     std::ostringstream type;
2465     type << "@\"";
2466     type << class_getName(value);
2467     type << "\"";
2468
2469     CYPoolTry {
2470         return CYMakeType(context, type.str().c_str());
2471     } CYPoolCatch(NULL)
2472 } CYCatch(NULL) return /*XXX*/ NULL; }
2473
2474 static JSValueRef Selector_callAsFunction_toString(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
2475     Selector_privateData *internal(reinterpret_cast<Selector_privateData *>(JSObjectGetPrivate(_this)));
2476     return CYCastJSValue(context, sel_getName(internal->GetValue()));
2477 } CYCatch(NULL) }
2478
2479 static JSValueRef Selector_callAsFunction_toJSON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
2480     return Selector_callAsFunction_toString(context, object, _this, count, arguments, exception);
2481 }
2482
2483 static JSValueRef Selector_callAsFunction_toCYON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
2484     Selector_privateData *internal(reinterpret_cast<Selector_privateData *>(JSObjectGetPrivate(_this)));
2485     const char *name(sel_getName(internal->GetValue()));
2486
2487     CYPoolTry {
2488         NSString *string([NSString stringWithFormat:@"@selector(%s)", name]);
2489         return CYCastJSValue(context, CYJSString(context, string));
2490     } CYPoolCatch(NULL)
2491 } CYCatch(NULL) return /*XXX*/ NULL; }
2492
2493 static JSValueRef Selector_callAsFunction_type(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
2494     if (count != 1)
2495         throw CYJSError(context, "incorrect number of arguments to Selector.type");
2496
2497     CYPool pool;
2498     Selector_privateData *internal(reinterpret_cast<Selector_privateData *>(JSObjectGetPrivate(_this)));
2499     SEL sel(internal->GetValue());
2500
2501     objc_method *method;
2502     if (Class _class = CYCastClass(pool, context, arguments[0]))
2503         method = class_getInstanceMethod(_class, sel);
2504     else
2505         method = NULL;
2506
2507     if (const char *type = CYPoolTypeEncoding(pool, context, sel, method))
2508         return CYCastJSValue(context, CYJSString(type));
2509
2510     return CYJSNull(context);
2511 } CYCatch(NULL) }
2512
2513 static JSStaticValue Selector_staticValues[2] = {
2514     {"value", &CYValue_getProperty_value, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete},
2515     {NULL, NULL, NULL, 0}
2516 };
2517
2518 static JSStaticValue Instance_staticValues[5] = {
2519     {"constructor", &Instance_getProperty_constructor, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2520     {"messages", &Instance_getProperty_messages, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2521     {"prototype", &Instance_getProperty_prototype, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2522     {"value", &CYValue_getProperty_value, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2523     {NULL, NULL, NULL, 0}
2524 };
2525
2526 static JSStaticFunction Instance_staticFunctions[7] = {
2527     {"$cya", &CYValue_callAsFunction_$cya, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2528     {"toCYON", &Instance_callAsFunction_toCYON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2529     {"toJSON", &Instance_callAsFunction_toJSON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2530     {"valueOf", &Instance_callAsFunction_valueOf, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2531     {"toPointer", &Instance_callAsFunction_toPointer, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2532     {"toString", &Instance_callAsFunction_toString, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2533     {NULL, NULL, 0}
2534 };
2535
2536 static JSStaticFunction Class_staticFunctions[2] = {
2537     {"pointerTo", &Class_callAsFunction_pointerTo, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2538     {NULL, NULL, 0}
2539 };
2540
2541 static JSStaticFunction Internal_staticFunctions[2] = {
2542     {"$cya", &Internal_callAsFunction_$cya, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2543     {NULL, NULL, 0}
2544 };
2545
2546 static JSStaticFunction Selector_staticFunctions[5] = {
2547     {"toCYON", &Selector_callAsFunction_toCYON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2548     {"toJSON", &Selector_callAsFunction_toJSON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2549     {"toString", &Selector_callAsFunction_toString, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2550     {"type", &Selector_callAsFunction_type, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2551     {NULL, NULL, 0}
2552 };
2553
2554 #ifdef __APPLE__
2555 JSValueRef NSCFType$cy$toJSON$inContext$(id self, SEL sel, JSValueRef key, JSContextRef context) { CYObjectiveTry_(context) {
2556     return CYCastJSValue(context, [(NSString *) CFCopyDescription((CFTypeRef) self) autorelease]);
2557 } CYObjectiveCatch }
2558 #endif
2559
2560 void CYObjectiveC_Initialize() { /*XXX*/ JSContextRef context(NULL); CYPoolTry {
2561     $objc_setAssociatedObject = reinterpret_cast<void (*)(id, void *, id value, objc_AssociationPolicy)>(dlsym(RTLD_DEFAULT, "objc_setAssociatedObject"));
2562     $objc_getAssociatedObject = reinterpret_cast<id (*)(id, void *)>(dlsym(RTLD_DEFAULT, "objc_getAssociatedObject"));
2563     $objc_removeAssociatedObjects = reinterpret_cast<void (*)(id)>(dlsym(RTLD_DEFAULT, "objc_removeAssociatedObjects"));
2564
2565     CYPool &pool(CYGetGlobalPool());
2566
2567     Object_type = new(pool) Type_privateData("@");
2568     Selector_type = new(pool) Type_privateData(":");
2569
2570 #ifdef __APPLE__
2571     // XXX: apparently, iOS now has both of these
2572     NSCFBoolean_ = objc_getClass("__NSCFBoolean");
2573     if (NSCFBoolean_ == nil)
2574         NSCFBoolean_ = objc_getClass("NSCFBoolean");
2575
2576     NSCFType_ = objc_getClass("NSCFType");
2577     NSGenericDeallocHandler_ = objc_getClass("__NSGenericDeallocHandler");
2578     NSMessageBuilder_ = objc_getClass("NSMessageBuilder");
2579     NSZombie_ = objc_getClass("_NSZombie_");
2580 #else
2581     NSBoolNumber_ = objc_getClass("NSBoolNumber");
2582 #endif
2583
2584     NSArray_ = objc_getClass("NSArray");
2585     NSBlock_ = objc_getClass("NSBlock");
2586     NSDictionary_ = objc_getClass("NSDictionary");
2587     NSString_ = objc_getClass("NSString");
2588     Object_ = objc_getClass("Object");
2589
2590     JSClassDefinition definition;
2591
2592     definition = kJSClassDefinitionEmpty;
2593     definition.className = "Instance";
2594     definition.staticValues = Instance_staticValues;
2595     definition.staticFunctions = Instance_staticFunctions;
2596     definition.hasProperty = &Instance_hasProperty;
2597     definition.getProperty = &Instance_getProperty;
2598     definition.setProperty = &Instance_setProperty;
2599     definition.deleteProperty = &Instance_deleteProperty;
2600     definition.getPropertyNames = &Instance_getPropertyNames;
2601     definition.callAsConstructor = &Instance_callAsConstructor;
2602     definition.callAsFunction = &Instance_callAsFunction;
2603     definition.hasInstance = &Instance_hasInstance;
2604     definition.finalize = &CYFinalize;
2605     Instance_ = JSClassCreate(&definition);
2606
2607     definition.className = "ArrayInstance";
2608     ArrayInstance_ = JSClassCreate(&definition);
2609
2610     definition.className = "FunctionInstance";
2611     FunctionInstance_ = JSClassCreate(&definition);
2612
2613     definition.className = "ObjectInstance";
2614     ObjectInstance_ = JSClassCreate(&definition);
2615
2616     definition.className = "StringInstance";
2617     StringInstance_ = JSClassCreate(&definition);
2618
2619     definition = kJSClassDefinitionEmpty;
2620     definition.className = "Class";
2621     definition.staticFunctions = Class_staticFunctions;
2622     Class_ = JSClassCreate(&definition);
2623
2624     definition = kJSClassDefinitionEmpty;
2625     definition.className = "Internal";
2626     definition.staticFunctions = Internal_staticFunctions;
2627     definition.hasProperty = &Internal_hasProperty;
2628     definition.getProperty = &Internal_getProperty;
2629     definition.setProperty = &Internal_setProperty;
2630     definition.getPropertyNames = &Internal_getPropertyNames;
2631     definition.finalize = &CYFinalize;
2632     Internal_ = JSClassCreate(&definition);
2633
2634     definition = kJSClassDefinitionEmpty;
2635     definition.className = "Message";
2636     definition.staticFunctions = cy::Functor::StaticFunctions;
2637     definition.callAsFunction = &Message_callAsFunction;
2638     definition.finalize = &CYFinalize;
2639     Message_ = JSClassCreate(&definition);
2640
2641     definition = kJSClassDefinitionEmpty;
2642     definition.className = "Messages";
2643     definition.hasProperty = &Messages_hasProperty;
2644     definition.getProperty = &Messages_getProperty;
2645     definition.setProperty = &Messages_setProperty;
2646 #if 0 && OBJC_API_VERSION < 2
2647     definition.deleteProperty = &Messages_deleteProperty;
2648 #endif
2649     definition.getPropertyNames = &Messages_getPropertyNames;
2650     definition.finalize = &CYFinalize;
2651     Messages_ = JSClassCreate(&definition);
2652
2653     definition = kJSClassDefinitionEmpty;
2654     definition.className = "Selector";
2655     definition.staticValues = Selector_staticValues;
2656     definition.staticFunctions = Selector_staticFunctions;
2657     definition.callAsFunction = &Selector_callAsFunction;
2658     definition.finalize = &CYFinalize;
2659     Selector_ = JSClassCreate(&definition);
2660
2661     definition = kJSClassDefinitionEmpty;
2662     definition.className = "Super";
2663     definition.staticFunctions = Internal_staticFunctions;
2664     definition.finalize = &CYFinalize;
2665     Super_ = JSClassCreate(&definition);
2666
2667     definition = kJSClassDefinitionEmpty;
2668     definition.className = "ObjectiveC::Classes";
2669     definition.getProperty = &ObjectiveC_Classes_getProperty;
2670     definition.getPropertyNames = &ObjectiveC_Classes_getPropertyNames;
2671     ObjectiveC_Classes_ = JSClassCreate(&definition);
2672
2673     definition = kJSClassDefinitionEmpty;
2674     definition.className = "ObjectiveC::Constants";
2675     definition.getProperty = &ObjectiveC_Constants_getProperty;
2676     definition.getPropertyNames = &ObjectiveC_Constants_getPropertyNames;
2677     ObjectiveC_Constants_ = JSClassCreate(&definition);
2678
2679 #if OBJC_API_VERSION >= 2
2680     definition = kJSClassDefinitionEmpty;
2681     definition.className = "ObjectiveC::Images";
2682     definition.getProperty = &ObjectiveC_Images_getProperty;
2683     definition.getPropertyNames = &ObjectiveC_Images_getPropertyNames;
2684     ObjectiveC_Images_ = JSClassCreate(&definition);
2685
2686     definition = kJSClassDefinitionEmpty;
2687     definition.className = "ObjectiveC::Image::Classes";
2688     definition.getProperty = &ObjectiveC_Image_Classes_getProperty;
2689     definition.getPropertyNames = &ObjectiveC_Image_Classes_getPropertyNames;
2690     ObjectiveC_Image_Classes_ = JSClassCreate(&definition);
2691 #endif
2692
2693     definition = kJSClassDefinitionEmpty;
2694     definition.className = "ObjectiveC::Protocols";
2695     definition.getProperty = &ObjectiveC_Protocols_getProperty;
2696     definition.getPropertyNames = &ObjectiveC_Protocols_getPropertyNames;
2697     ObjectiveC_Protocols_ = JSClassCreate(&definition);
2698
2699 #ifdef __APPLE__
2700     class_addMethod(NSCFType_, @selector(cy$toJSON:inContext:), reinterpret_cast<IMP>(&NSCFType$cy$toJSON$inContext$), "^{OpaqueJSValue=}16@0:4@8^{OpaqueJSContext=}12");
2701 #endif
2702 } CYPoolCatch() }
2703
2704 void CYObjectiveC_SetupContext(JSContextRef context) { CYPoolTry {
2705     JSObjectRef global(CYGetGlobalObject(context));
2706     JSObjectRef cy(CYCastJSObject(context, CYGetProperty(context, global, cy_s)));
2707     JSObjectRef cycript(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Cycript"))));
2708     JSObjectRef all(CYCastJSObject(context, CYGetProperty(context, cycript, CYJSString("all"))));
2709     JSObjectRef alls(CYCastJSObject(context, CYGetProperty(context, cycript, CYJSString("alls"))));
2710
2711     JSObjectRef ObjectiveC(JSObjectMake(context, NULL, NULL));
2712     CYSetProperty(context, cycript, CYJSString("ObjectiveC"), ObjectiveC);
2713
2714     JSObjectRef protocols(JSObjectMake(context, ObjectiveC_Protocols_, NULL));
2715     CYSetProperty(context, ObjectiveC, CYJSString("protocols"), protocols);
2716     CYArrayPush(context, alls, protocols);
2717
2718     JSObjectRef classes(JSObjectMake(context, ObjectiveC_Classes_, NULL));
2719     CYSetProperty(context, ObjectiveC, CYJSString("classes"), classes);
2720     CYArrayPush(context, alls, classes);
2721
2722     JSObjectRef constants(JSObjectMake(context, ObjectiveC_Constants_, NULL));
2723     CYSetProperty(context, ObjectiveC, CYJSString("constants"), constants);
2724     CYArrayPush(context, alls, constants);
2725
2726 #if OBJC_API_VERSION >= 2
2727     CYSetProperty(context, ObjectiveC, CYJSString("images"), JSObjectMake(context, ObjectiveC_Images_, NULL));
2728 #endif
2729
2730     JSObjectRef Class(JSObjectMakeConstructor(context, Class_, NULL));
2731     JSObjectRef Instance(JSObjectMakeConstructor(context, Instance_, &Instance_new));
2732     JSObjectRef Message(JSObjectMakeConstructor(context, Message_, NULL));
2733     JSObjectRef Selector(JSObjectMakeConstructor(context, Selector_, &Selector_new));
2734     JSObjectRef Super(JSObjectMakeConstructor(context, Super_, &Super_new));
2735
2736     JSObjectRef Instance_prototype(CYCastJSObject(context, CYGetProperty(context, Instance, prototype_s)));
2737     CYSetProperty(context, cy, CYJSString("Instance_prototype"), Instance_prototype);
2738
2739     JSObjectRef ArrayInstance(JSObjectMakeConstructor(context, ArrayInstance_, NULL));
2740     JSObjectRef ArrayInstance_prototype(CYCastJSObject(context, CYGetProperty(context, ArrayInstance, prototype_s)));
2741     CYSetProperty(context, cy, CYJSString("ArrayInstance_prototype"), ArrayInstance_prototype);
2742     JSObjectRef Array_prototype(CYGetCachedObject(context, CYJSString("Array_prototype")));
2743     JSObjectSetPrototype(context, ArrayInstance_prototype, Array_prototype);
2744
2745     JSObjectRef FunctionInstance(JSObjectMakeConstructor(context, FunctionInstance_, NULL));
2746     JSObjectRef FunctionInstance_prototype(CYCastJSObject(context, CYGetProperty(context, FunctionInstance, prototype_s)));
2747     CYSetProperty(context, cy, CYJSString("FunctionInstance_prototype"), FunctionInstance_prototype);
2748     JSObjectRef Function_prototype(CYGetCachedObject(context, CYJSString("Function_prototype")));
2749     JSObjectSetPrototype(context, FunctionInstance_prototype, Function_prototype);
2750
2751     JSObjectRef ObjectInstance(JSObjectMakeConstructor(context, ObjectInstance_, NULL));
2752     JSObjectRef ObjectInstance_prototype(CYCastJSObject(context, CYGetProperty(context, ObjectInstance, prototype_s)));
2753     CYSetProperty(context, cy, CYJSString("ObjectInstance_prototype"), ObjectInstance_prototype);
2754     JSObjectRef Object_prototype(CYGetCachedObject(context, CYJSString("Object_prototype")));
2755     JSObjectSetPrototype(context, ObjectInstance_prototype, Object_prototype);
2756
2757     JSObjectRef StringInstance(JSObjectMakeConstructor(context, StringInstance_, NULL));
2758     JSObjectRef StringInstance_prototype(CYCastJSObject(context, CYGetProperty(context, StringInstance, prototype_s)));
2759     CYSetProperty(context, cy, CYJSString("StringInstance_prototype"), StringInstance_prototype);
2760     JSObjectRef String_prototype(CYGetCachedObject(context, CYJSString("String_prototype")));
2761     JSObjectSetPrototype(context, StringInstance_prototype, String_prototype);
2762
2763     JSObjectRef Class_prototype(CYCastJSObject(context, CYGetProperty(context, Class, prototype_s)));
2764     CYSetProperty(context, cy, CYJSString("Class_prototype"), Class_prototype);
2765     JSObjectSetPrototype(context, Class_prototype, Instance_prototype);
2766
2767     CYSetProperty(context, cycript, CYJSString("Instance"), Instance);
2768     CYSetProperty(context, cycript, CYJSString("Selector"), Selector);
2769     CYSetProperty(context, cycript, CYJSString("Super"), Super);
2770
2771     JSObjectRef box(JSObjectMakeFunctionWithCallback(context, CYJSString("box"), &Instance_box_callAsFunction));
2772     CYSetProperty(context, Instance, CYJSString("box"), box);
2773
2774 #if defined(__APPLE__) && defined(__arm__) && 0
2775     CYSetProperty(context, all, CYJSString("objc_registerClassPair"), &objc_registerClassPair_, kJSPropertyAttributeDontEnum);
2776 #endif
2777
2778     CYSetProperty(context, all, CYJSString("objc_msgSend"), &$objc_msgSend, kJSPropertyAttributeDontEnum);
2779
2780     JSObjectSetPrototype(context, CYCastJSObject(context, CYGetProperty(context, Message, prototype_s)), Function_prototype);
2781     JSObjectSetPrototype(context, CYCastJSObject(context, CYGetProperty(context, Selector, prototype_s)), Function_prototype);
2782 } CYPoolCatch() }
2783
2784 static CYHooks CYObjectiveCHooks = {
2785     &CYObjectiveC_ExecuteStart,
2786     &CYObjectiveC_ExecuteEnd,
2787     &CYObjectiveC_CallFunction,
2788     &CYObjectiveC_Initialize,
2789     &CYObjectiveC_SetupContext,
2790     &CYObjectiveC_PoolFFI,
2791     &CYObjectiveC_FromFFI,
2792 };
2793
2794 struct CYObjectiveC {
2795     CYObjectiveC() {
2796         hooks_ = &CYObjectiveCHooks;
2797         // XXX: evil magic juju to make this actually take effect on a Mac when compiled with autoconf/libtool doom!
2798         _assert(hooks_ != NULL);
2799     }
2800 } CYObjectiveC;