Library.mm

   1 /* Cycript - Remove Execution Server and Disassembler
   2  * Copyright (C) 2009  Jay Freeman (saurik)
   3 */
   4
   5 /* Modified BSD License {{{ */
   6 /*
   7  *        Redistribution and use in source and binary
   8  * forms, with or without modification, are permitted
   9  * provided that the following conditions are met:
  10  *
  11  * 1. Redistributions of source code must retain the
  12  *    above copyright notice, this list of conditions
  13  *    and the following disclaimer.
  14  * 2. Redistributions in binary form must reproduce the
  15  *    above copyright notice, this list of conditions
  16  *    and the following disclaimer in the documentation
  17  *    and/or other materials provided with the
  18  *    distribution.
  19  * 3. The name of the author may not be used to endorse
  20  *    or promote products derived from this software
  21  *    without specific prior written permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS''
  24  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
  25  * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  26  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  27  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE
  28  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  29  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  30  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  31  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  32  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  33  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
  34  * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
  35  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  36  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  37 */
  38 /* }}} */
  39
  40 #define _GNU_SOURCE
  41
  42 #include <substrate.h>
  43 #include "cycript.hpp"
  44
  45 #include "sig/parse.hpp"
  46 #include "sig/ffi_type.hpp"
  47
  48 #include "Pooling.hpp"
  49 #include "Struct.hpp"
  50
  51 #include <CoreFoundation/CoreFoundation.h>
  52 #include <CoreFoundation/CFLogUtilities.h>
  53
  54 #include <WebKit/WebScriptObject.h>
  55
  56 #include <sys/mman.h>
  57
  58 #include <iostream>
  59 #include <ext/stdio_filebuf.h>
  60 #include <set>
  61 #include <map>
  62
  63 #include <sstream>
  64 #include <cmath>
  65
  66 #include "Parser.hpp"
  67 #include "Cycript.tab.hh"
  68
  69 #include <apr-1/apr_thread_proc.h>
  70
  71 #undef _assert
  72 #undef _trace
  73
  74 #define _assert(test) do { \
  75     if (!(test)) \
  76         @throw [NSException exceptionWithName:NSInternalInconsistencyException reason:[NSString stringWithFormat:@"_assert(%s):%s(%u):%s", #test, __FILE__, __LINE__, __FUNCTION__] userInfo:nil]; \
  77 } while (false)
  78
  79 #define _trace() do { \
  80     CFLog(kCFLogLevelNotice, CFSTR("_trace():%u"), __LINE__); \
  81 } while (false)
  82
  83 #define CYPoolTry { \
  84     id _saved(nil); \
  85     NSAutoreleasePool *_pool([[NSAutoreleasePool alloc] init]); \
  86     @try
  87 #define CYPoolCatch(value) \
  88     @catch (NSException *error) { \
  89         _saved = [error retain]; \
  90         @throw; \
  91         return value; \
  92     } @finally { \
  93         [_pool release]; \
  94         if (_saved != nil) \
  95             [_saved autorelease]; \
  96     } \
  97 }
  98
  99 static JSGlobalContextRef Context_;
 100 static JSObjectRef System_;
 101 static JSObjectRef ObjectiveC_;
 102
 103 static JSClassRef Functor_;
 104 static JSClassRef Instance_;
 105 static JSClassRef Internal_;
 106 static JSClassRef Message_;
 107 static JSClassRef Pointer_;
 108 static JSClassRef Prototype_;
 109 static JSClassRef Runtime_;
 110 static JSClassRef Selector_;
 111 static JSClassRef Struct_;
 112 static JSClassRef Type_;
 113
 114 static JSClassRef ObjectiveC_Classes_;
 115 static JSClassRef ObjectiveC_Image_Classes_;
 116 static JSClassRef ObjectiveC_Images_;
 117 static JSClassRef ObjectiveC_Protocols_;
 118
 119 static JSObjectRef Array_;
 120 static JSObjectRef Function_;
 121
 122 static JSStringRef Result_;
 123
 124 static JSStringRef length_;
 125 static JSStringRef message_;
 126 static JSStringRef name_;
 127 static JSStringRef prototype_;
 128 static JSStringRef toCYON_;
 129 static JSStringRef toJSON_;
 130
 131 static JSObjectRef Array_prototype_;
 132 static JSObjectRef Array_pop_;
 133 static JSObjectRef Array_push_;
 134 static JSObjectRef Array_splice_;
 135
 136 static Class NSArray_;
 137 static Class NSCFBoolean_;
 138 static Class NSCFType_;
 139 static Class NSMessageBuilder_;
 140 static Class NSZombie_;
 141 static Class Object_;
 142
 143 static NSArray *Bridge_;
 144
 145 static void Finalize(JSObjectRef object) {
 146     delete reinterpret_cast<CYData *>(JSObjectGetPrivate(object));
 147 }
 148
 149 class Type_privateData;
 150
 151 struct CYValue :
 152     CYData
 153 {
 154     void *value_;
 155
 156     CYValue() {
 157     }
 158
 159     CYValue(void *value) :
 160         value_(value)
 161     {
 162     }
 163
 164     CYValue(const CYValue &rhs) :
 165         value_(rhs.value_)
 166     {
 167     }
 168
 169     virtual Type_privateData *GetType() const {
 170         return NULL;
 171     }
 172 };
 173
 174 struct Selector_privateData :
 175     CYValue
 176 {
 177     Selector_privateData(SEL value) :
 178         CYValue(value)
 179     {
 180     }
 181
 182     SEL GetValue() const {
 183         return reinterpret_cast<SEL>(value_);
 184     }
 185
 186     virtual Type_privateData *GetType() const;
 187 };
 188
 189 struct Instance :
 190     CYValue
 191 {
 192     enum Flags {
 193         None          = 0,
 194         Transient     = (1 << 0),
 195         Uninitialized = (1 << 1),
 196     };
 197
 198     Flags flags_;
 199
 200     Instance(id value, Flags flags) :
 201         CYValue(value),
 202         flags_(flags)
 203     {
 204     }
 205
 206     virtual ~Instance() {
 207         if ((flags_ & Transient) == 0)
 208             // XXX: does this handle background threads correctly?
 209             [GetValue() performSelector:@selector(release) withObject:nil afterDelay:0];
 210     }
 211
 212     static JSObjectRef Make(JSContextRef context, id object, Flags flags = None) {
 213         JSObjectRef value(JSObjectMake(context, Instance_, new Instance(object, flags)));
 214         if (object != nil)
 215             for (Class _class(object_getClass(object)); _class != nil; _class = class_getSuperclass(_class))
 216                 if (_class == NSArray_) {
 217                     JSObjectSetPrototype(context, value, Array_prototype_);
 218                     break;
 219                 }
 220         return value;
 221     }
 222
 223     id GetValue() const {
 224         return reinterpret_cast<id>(value_);
 225     }
 226
 227     bool IsUninitialized() const {
 228         return (flags_ & Uninitialized) != 0;
 229     }
 230
 231     virtual Type_privateData *GetType() const;
 232 };
 233
 234 struct Prototype :
 235     CYValue
 236 {
 237     Prototype(Class value) :
 238         CYValue(value)
 239     {
 240     }
 241
 242     static JSObjectRef Make(JSContextRef context, Class _class, bool array = false) {
 243         JSObjectRef value(JSObjectMake(context, Prototype_, new Prototype(_class)));
 244         if (_class == NSArray_)
 245             array = true;
 246         if (Class super = class_getSuperclass(_class))
 247             JSObjectSetPrototype(context, value, Prototype::Make(context, super, array));
 248         /*else if (array)
 249             JSObjectSetPrototype(context, value, Array_prototype_);*/
 250         return value;
 251     }
 252
 253     Class GetValue() const {
 254         return reinterpret_cast<Class>(value_);
 255     }
 256 };
 257
 258 struct Internal :
 259     CYValue
 260 {
 261     JSObjectRef owner_;
 262
 263     Internal(id value, JSObjectRef owner) :
 264         CYValue(value),
 265         owner_(owner)
 266     {
 267     }
 268
 269     static JSObjectRef Make(JSContextRef context, id object, JSObjectRef owner) {
 270         return JSObjectMake(context, Internal_, new Internal(object, owner));
 271     }
 272
 273     id GetValue() const {
 274         return reinterpret_cast<id>(value_);
 275     }
 276 };
 277
 278 namespace sig {
 279
 280 void Copy(apr_pool_t *pool, Type &lhs, Type &rhs);
 281
 282 void Copy(apr_pool_t *pool, Element &lhs, Element &rhs) {
 283     lhs.name = apr_pstrdup(pool, rhs.name);
 284     if (rhs.type == NULL)
 285         lhs.type = NULL;
 286     else {
 287         lhs.type = new(pool) Type;
 288         Copy(pool, *lhs.type, *rhs.type);
 289     }
 290     lhs.offset = rhs.offset;
 291 }
 292
 293 void Copy(apr_pool_t *pool, Signature &lhs, Signature &rhs) {
 294     size_t count(rhs.count);
 295     lhs.count = count;
 296     lhs.elements = new(pool) Element[count];
 297     for (size_t index(0); index != count; ++index)
 298         Copy(pool, lhs.elements[index], rhs.elements[index]);
 299 }
 300
 301 void Copy(apr_pool_t *pool, Type &lhs, Type &rhs) {
 302     lhs.primitive = rhs.primitive;
 303     lhs.name = apr_pstrdup(pool, rhs.name);
 304     lhs.flags = rhs.flags;
 305
 306     if (sig::IsAggregate(rhs.primitive))
 307         Copy(pool, lhs.data.signature, rhs.data.signature);
 308     else {
 309         if (rhs.data.data.type != NULL) {
 310             lhs.data.data.type = new(pool) Type;
 311             Copy(pool, *lhs.data.data.type, *rhs.data.data.type);
 312         }
 313
 314         lhs.data.data.size = rhs.data.data.size;
 315     }
 316 }
 317
 318 void Copy(apr_pool_t *pool, ffi_type &lhs, ffi_type &rhs) {
 319     lhs.size = rhs.size;
 320     lhs.alignment = rhs.alignment;
 321     lhs.type = rhs.type;
 322     if (rhs.elements == NULL)
 323         lhs.elements = NULL;
 324     else {
 325         size_t count(0);
 326         while (rhs.elements[count] != NULL)
 327             ++count;
 328
 329         lhs.elements = new(pool) ffi_type *[count + 1];
 330         lhs.elements[count] = NULL;
 331
 332         for (size_t index(0); index != count; ++index) {
 333             // XXX: if these are libffi native then you can just take them
 334             ffi_type *ffi(new(pool) ffi_type);
 335             lhs.elements[index] = ffi;
 336             sig::Copy(pool, *ffi, *rhs.elements[index]);
 337         }
 338     }
 339 }
 340
 341 }
 342
 343 struct CStringMapLess :
 344     std::binary_function<const char *, const char *, bool>
 345 {
 346     _finline bool operator ()(const char *lhs, const char *rhs) const {
 347         return strcmp(lhs, rhs) < 0;
 348     }
 349 };
 350
 351 void Structor_(apr_pool_t *pool, const char *name, const char *types, sig::Type *&type) {
 352     if (name == NULL)
 353         return;
 354
 355     CYPoolTry {
 356         if (NSMutableArray *entry = [[Bridge_ objectAtIndex:2] objectForKey:[NSString stringWithUTF8String:name]])
 357             switch ([[entry objectAtIndex:0] intValue]) {
 358                 case 0: {
 359                     sig::Parse(pool, &type->data.signature, [[entry objectAtIndex:1] UTF8String], &Structor_);
 360                 } break;
 361
 362                 case 1: {
 363                     sig::Signature signature;
 364                     sig::Parse(pool, &signature, [[entry objectAtIndex:1] UTF8String], &Structor_);
 365                     type = signature.elements[0].type;
 366                 } break;
 367             }
 368     } CYPoolCatch()
 369 }
 370
 371 struct Type_privateData :
 372     CYData
 373 {
 374     static Type_privateData *Object;
 375     static Type_privateData *Selector;
 376
 377     ffi_type *ffi_;
 378     sig::Type *type_;
 379
 380     void Set(sig::Type *type) {
 381         type_ = new(pool_) sig::Type;
 382         sig::Copy(pool_, *type_, *type);
 383     }
 384
 385     Type_privateData(apr_pool_t *pool, const char *type) :
 386         ffi_(NULL)
 387     {
 388         if (pool != NULL)
 389             pool_ = pool;
 390
 391         sig::Signature signature;
 392         sig::Parse(pool_, &signature, type, &Structor_);
 393         type_ = signature.elements[0].type;
 394     }
 395
 396     Type_privateData(sig::Type *type) :
 397         ffi_(NULL)
 398     {
 399         if (type != NULL)
 400             Set(type);
 401     }
 402
 403     Type_privateData(sig::Type *type, ffi_type *ffi) {
 404         ffi_ = new(pool_) ffi_type;
 405         sig::Copy(pool_, *ffi_, *ffi);
 406         Set(type);
 407     }
 408
 409     ffi_type *GetFFI() {
 410         if (ffi_ == NULL) {
 411             ffi_ = new(pool_) ffi_type;
 412
 413             sig::Element element;
 414             element.name = NULL;
 415             element.type = type_;
 416             element.offset = 0;
 417
 418             sig::Signature signature;
 419             signature.elements = &element;
 420             signature.count = 1;
 421
 422             ffi_cif cif;
 423             sig::sig_ffi_cif(pool_, &sig::ObjectiveC, &signature, &cif);
 424             *ffi_ = *cif.rtype;
 425         }
 426
 427         return ffi_;
 428     }
 429 };
 430
 431 Type_privateData *Type_privateData::Object;
 432 Type_privateData *Type_privateData::Selector;
 433
 434 Type_privateData *Instance::GetType() const {
 435     return Type_privateData::Object;
 436 }
 437
 438 Type_privateData *Selector_privateData::GetType() const {
 439     return Type_privateData::Selector;
 440 }
 441
 442 struct Pointer :
 443     CYValue
 444 {
 445     JSObjectRef owner_;
 446     Type_privateData *type_;
 447
 448     Pointer(void *value, sig::Type *type, JSObjectRef owner) :
 449         CYValue(value),
 450         owner_(owner),
 451         type_(new(pool_) Type_privateData(type))
 452     {
 453     }
 454 };
 455
 456 struct Struct_privateData :
 457     CYValue
 458 {
 459     JSObjectRef owner_;
 460     Type_privateData *type_;
 461
 462     Struct_privateData(JSObjectRef owner) :
 463         owner_(owner)
 464     {
 465     }
 466 };
 467
 468 typedef std::map<const char *, Type_privateData *, CStringMapLess> TypeMap;
 469 static TypeMap Types_;
 470
 471 JSObjectRef CYMakeStruct(JSContextRef context, void *data, sig::Type *type, ffi_type *ffi, JSObjectRef owner) {
 472     Struct_privateData *internal(new Struct_privateData(owner));
 473     apr_pool_t *pool(internal->pool_);
 474     Type_privateData *typical(new(pool) Type_privateData(type, ffi));
 475     internal->type_ = typical;
 476
 477     if (owner != NULL)
 478         internal->value_ = data;
 479     else {
 480         size_t size(typical->GetFFI()->size);
 481         void *copy(apr_palloc(internal->pool_, size));
 482         memcpy(copy, data, size);
 483         internal->value_ = copy;
 484     }
 485
 486     return JSObjectMake(context, Struct_, internal);
 487 }
 488
 489 struct Functor_privateData :
 490     CYValue
 491 {
 492     sig::Signature signature_;
 493     ffi_cif cif_;
 494
 495
 496     Functor_privateData(const char *type, void (*value)()) :
 497         CYValue(reinterpret_cast<void *>(value))
 498     {
 499         sig::Parse(pool_, &signature_, type, &Structor_);
 500         sig::sig_ffi_cif(pool_, &sig::ObjectiveC, &signature_, &cif_);
 501     }
 502
 503     void (*GetValue())() const {
 504         return reinterpret_cast<void (*)()>(value_);
 505     }
 506 };
 507
 508 struct Closure_privateData :
 509     Functor_privateData
 510 {
 511     JSContextRef context_;
 512     JSObjectRef function_;
 513
 514     Closure_privateData(const char *type) :
 515         Functor_privateData(type, NULL)
 516     {
 517     }
 518 };
 519
 520 struct Message_privateData :
 521     Functor_privateData
 522 {
 523     SEL sel_;
 524
 525     Message_privateData(SEL sel, const char *type, IMP value = NULL) :
 526         Functor_privateData(type, reinterpret_cast<void (*)()>(value)),
 527         sel_(sel)
 528     {
 529     }
 530 };
 531
 532 JSObjectRef CYMakeInstance(JSContextRef context, id object, bool transient) {
 533     Instance::Flags flags;
 534
 535     if (transient)
 536         flags = Instance::Transient;
 537     else {
 538         flags = Instance::None;
 539         object = [object retain];
 540     }
 541
 542     return Instance::Make(context, object, flags);
 543 }
 544
 545 const char *CYPoolCString(apr_pool_t *pool, NSString *value) {
 546     if (pool == NULL)
 547         return [value UTF8String];
 548     else {
 549         size_t size([value maximumLengthOfBytesUsingEncoding:NSUTF8StringEncoding] + 1);
 550         char *string(new(pool) char[size]);
 551         if (![value getCString:string maxLength:size encoding:NSUTF8StringEncoding])
 552             @throw [NSException exceptionWithName:NSInternalInconsistencyException reason:@"[NSString getCString:maxLength:encoding:] == NO" userInfo:nil];
 553         return string;
 554     }
 555 }
 556
 557 JSValueRef CYCastJSValue(JSContextRef context, bool value) {
 558     return JSValueMakeBoolean(context, value);
 559 }
 560
 561 JSValueRef CYCastJSValue(JSContextRef context, double value) {
 562     return JSValueMakeNumber(context, value);
 563 }
 564
 565 #define CYCastJSValue_(Type_) \
 566     JSValueRef CYCastJSValue(JSContextRef context, Type_ value) { \
 567         return JSValueMakeNumber(context, static_cast<double>(value)); \
 568     }
 569
 570 CYCastJSValue_(int)
 571 CYCastJSValue_(unsigned int)
 572 CYCastJSValue_(long int)
 573 CYCastJSValue_(long unsigned int)
 574 CYCastJSValue_(long long int)
 575 CYCastJSValue_(long long unsigned int)
 576
 577 JSValueRef CYJSUndefined(JSContextRef context) {
 578     return JSValueMakeUndefined(context);
 579 }
 580
 581 size_t CYGetIndex(const char *value) {
 582     if (value[0] != '0') {
 583         char *end;
 584         size_t index(strtoul(value, &end, 10));
 585         if (value + strlen(value) == end)
 586             return index;
 587     } else if (value[1] == '\0')
 588         return 0;
 589     return _not(size_t);
 590 }
 591
 592 size_t CYGetIndex(apr_pool_t *pool, NSString *value) {
 593     return CYGetIndex(CYPoolCString(pool, value));
 594 }
 595
 596 bool CYGetOffset(const char *value, ssize_t &index) {
 597     if (value[0] != '0') {
 598         char *end;
 599         index = strtol(value, &end, 10);
 600         if (value + strlen(value) == end)
 601             return true;
 602     } else if (value[1] == '\0') {
 603         index = 0;
 604         return true;
 605     }
 606
 607     return false;
 608 }
 609
 610 bool CYGetOffset(apr_pool_t *pool, NSString *value, ssize_t &index) {
 611     return CYGetOffset(CYPoolCString(pool, value), index);
 612 }
 613
 614 NSString *CYPoolNSCYON(apr_pool_t *pool, id value);
 615
 616 @interface NSMethodSignature (Cycript)
 617 - (NSString *) _typeString;
 618 @end
 619
 620 @interface NSObject (Cycript)
 621
 622 - (JSValueRef) cy$JSValueInContext:(JSContextRef)context;
 623 - (JSType) cy$JSType;
 624
 625 - (NSObject *) cy$toJSON:(NSString *)key;
 626 - (NSString *) cy$toCYON;
 627 - (NSString *) cy$toKey;
 628
 629 - (bool) cy$hasProperty:(NSString *)name;
 630 - (NSObject *) cy$getProperty:(NSString *)name;
 631 - (bool) cy$setProperty:(NSString *)name to:(NSObject *)value;
 632 - (bool) cy$deleteProperty:(NSString *)name;
 633
 634 @end
 635
 636 @protocol Cycript
 637 - (JSValueRef) cy$JSValueInContext:(JSContextRef)context;
 638 @end
 639
 640 @interface NSString (Cycript)
 641 - (void *) cy$symbol;
 642 @end
 643
 644 struct PropertyAttributes {
 645     CYPool pool_;
 646
 647     const char *name;
 648
 649     const char *variable;
 650
 651     const char *getter_;
 652     const char *setter_;
 653
 654     bool readonly;
 655     bool copy;
 656     bool retain;
 657     bool nonatomic;
 658     bool dynamic;
 659     bool weak;
 660     bool garbage;
 661
 662     PropertyAttributes(objc_property_t property) :
 663         variable(NULL),
 664         getter_(NULL),
 665         setter_(NULL),
 666         readonly(false),
 667         copy(false),
 668         retain(false),
 669         nonatomic(false),
 670         dynamic(false),
 671         weak(false),
 672         garbage(false)
 673     {
 674         name = property_getName(property);
 675         const char *attributes(property_getAttributes(property));
 676
 677         for (char *state, *token(apr_strtok(apr_pstrdup(pool_, attributes), ",", &state)); token != NULL; token = apr_strtok(NULL, ",", &state)) {
 678             switch (*token) {
 679                 case 'R': readonly = true; break;
 680                 case 'C': copy = true; break;
 681                 case '&': retain = true; break;
 682                 case 'N': nonatomic = true; break;
 683                 case 'G': getter_ = token + 1; break;
 684                 case 'S': setter_ = token + 1; break;
 685                 case 'V': variable = token + 1; break;
 686             }
 687         }
 688
 689         /*if (variable == NULL) {
 690             variable = property_getName(property);
 691             size_t size(strlen(variable));
 692             char *name(new(pool_) char[size + 2]);
 693             name[0] = '_';
 694             memcpy(name + 1, variable, size);
 695             name[size + 1] = '\0';
 696             variable = name;
 697         }*/
 698     }
 699
 700     const char *Getter() {
 701         if (getter_ == NULL)
 702             getter_ = apr_pstrdup(pool_, name);
 703         return getter_;
 704     }
 705
 706     const char *Setter() {
 707         if (setter_ == NULL && !readonly) {
 708             size_t length(strlen(name));
 709
 710             char *temp(new(pool_) char[length + 5]);
 711             temp[0] = 's';
 712             temp[1] = 'e';
 713             temp[2] = 't';
 714
 715             if (length != 0) {
 716                 temp[3] = toupper(name[0]);
 717                 memcpy(temp + 4, name + 1, length - 1);
 718             }
 719
 720             temp[length + 3] = ':';
 721             temp[length + 4] = '\0';
 722             setter_ = temp;
 723         }
 724
 725         return setter_;
 726     }
 727
 728 };
 729
 730 @implementation NSProxy (Cycript)
 731
 732 - (NSObject *) cy$toJSON:(NSString *)key {
 733     return [self description];
 734 }
 735
 736 - (NSString *) cy$toCYON {
 737     return [[self cy$toJSON:@""] cy$toCYON];
 738 }
 739
 740 @end
 741
 742 @implementation NSObject (Cycript)
 743
 744 - (JSValueRef) cy$JSValueInContext:(JSContextRef)context {
 745     return CYMakeInstance(context, self, false);
 746 }
 747
 748 - (JSType) cy$JSType {
 749     return kJSTypeObject;
 750 }
 751
 752 - (NSObject *) cy$toJSON:(NSString *)key {
 753     return [self description];
 754 }
 755
 756 - (NSString *) cy$toCYON {
 757     return [[self cy$toJSON:@""] cy$toCYON];
 758 }
 759
 760 - (NSString *) cy$toKey {
 761     return [self cy$toCYON];
 762 }
 763
 764 - (bool) cy$hasProperty:(NSString *)name {
 765     return false;
 766 }
 767
 768 - (NSObject *) cy$getProperty:(NSString *)name {
 769     return nil;
 770 }
 771
 772 - (bool) cy$setProperty:(NSString *)name to:(NSObject *)value {
 773     return false;
 774 }
 775
 776 - (bool) cy$deleteProperty:(NSString *)name {
 777     return false;
 778 }
 779
 780 @end
 781
 782 NSString *NSCFType$cy$toJSON(id self, SEL sel, NSString *key) {
 783     return [(NSString *) CFCopyDescription((CFTypeRef) self) autorelease];
 784 }
 785
 786 @implementation WebUndefined (Cycript)
 787
 788 - (JSType) cy$JSType {
 789     return kJSTypeUndefined;
 790 }
 791
 792 - (NSObject *) cy$toJSON:(NSString *)key {
 793     return self;
 794 }
 795
 796 - (NSString *) cy$toCYON {
 797     return @"undefined";
 798 }
 799
 800 - (JSValueRef) cy$JSValueInContext:(JSContextRef)context {
 801     return CYJSUndefined(context);
 802 }
 803
 804 @end
 805
 806 @implementation NSNull (Cycript)
 807
 808 - (JSType) cy$JSType {
 809     return kJSTypeNull;
 810 }
 811
 812 - (NSObject *) cy$toJSON:(NSString *)key {
 813     return self;
 814 }
 815
 816 - (NSString *) cy$toCYON {
 817     return @"null";
 818 }
 819
 820 @end
 821
 822 @implementation NSArray (Cycript)
 823
 824 - (NSString *) cy$toCYON {
 825     NSMutableString *json([[[NSMutableString alloc] init] autorelease]);
 826     [json appendString:@"["];
 827
 828     bool comma(false);
 829     for (id object in self) {
 830         if (comma)
 831             [json appendString:@","];
 832         else
 833             comma = true;
 834         if (object == nil || [object cy$JSType] != kJSTypeUndefined)
 835             [json appendString:CYPoolNSCYON(NULL, object)];
 836         else {
 837             [json appendString:@","];
 838             comma = false;
 839         }
 840     }
 841
 842     [json appendString:@"]"];
 843     return json;
 844 }
 845
 846 - (bool) cy$hasProperty:(NSString *)name {
 847     if ([name isEqualToString:@"length"])
 848         return true;
 849
 850     size_t index(CYGetIndex(NULL, name));
 851     if (index == _not(size_t) || index >= [self count])
 852         return [super cy$hasProperty:name];
 853     else
 854         return true;
 855 }
 856
 857 - (NSObject *) cy$getProperty:(NSString *)name {
 858     if ([name isEqualToString:@"length"])
 859         return [NSNumber numberWithUnsignedInteger:[self count]];
 860
 861     size_t index(CYGetIndex(NULL, name));
 862     if (index == _not(size_t) || index >= [self count])
 863         return [super cy$getProperty:name];
 864     else
 865         return [self objectAtIndex:index];
 866 }
 867
 868 @end
 869
 870 @implementation NSMutableArray (Cycript)
 871
 872 - (bool) cy$setProperty:(NSString *)name to:(NSObject *)value {
 873     if ([name isEqualToString:@"length"]) {
 874         // XXX: is this not intelligent?
 875         NSUInteger size([(NSNumber *)value unsignedIntegerValue]);
 876         NSUInteger count([self count]);
 877         if (size < count)
 878             [self removeObjectsInRange:NSMakeRange(size, count - size)];
 879         else if (size != count) {
 880             WebUndefined *undefined([WebUndefined undefined]);
 881             for (size_t i(count); i != size; ++i)
 882                 [self addObject:undefined];
 883         }
 884         return true;
 885     }
 886
 887     size_t index(CYGetIndex(NULL, name));
 888     if (index == _not(size_t))
 889         return [super cy$setProperty:name to:value];
 890
 891     id object(value ?: [NSNull null]);
 892
 893     size_t count([self count]);
 894     if (index < count)
 895         [self replaceObjectAtIndex:index withObject:object];
 896     else {
 897         if (index != count) {
 898             WebUndefined *undefined([WebUndefined undefined]);
 899             for (size_t i(count); i != index; ++i)
 900                 [self addObject:undefined];
 901         }
 902
 903         [self addObject:object];
 904     }
 905
 906     return true;
 907 }
 908
 909 - (bool) cy$deleteProperty:(NSString *)name {
 910     size_t index(CYGetIndex(NULL, name));
 911     if (index == _not(size_t) || index >= [self count])
 912         return [super cy$deleteProperty:name];
 913     [self replaceObjectAtIndex:index withObject:[WebUndefined undefined]];
 914     return true;
 915 }
 916
 917 @end
 918
 919 @implementation NSDictionary (Cycript)
 920
 921 - (NSString *) cy$toCYON {
 922     NSMutableString *json([[[NSMutableString alloc] init] autorelease]);
 923     [json appendString:@"{"];
 924
 925     bool comma(false);
 926     for (id key in self) {
 927         if (comma)
 928             [json appendString:@","];
 929         else
 930             comma = true;
 931         [json appendString:[key cy$toKey]];
 932         [json appendString:@":"];
 933         NSObject *object([self objectForKey:key]);
 934         [json appendString:CYPoolNSCYON(NULL, object)];
 935     }
 936
 937     [json appendString:@"}"];
 938     return json;
 939 }
 940
 941 - (bool) cy$hasProperty:(NSString *)name {
 942     return [self objectForKey:name] != nil;
 943 }
 944
 945 - (NSObject *) cy$getProperty:(NSString *)name {
 946     return [self objectForKey:name];
 947 }
 948
 949 @end
 950
 951 @implementation NSMutableDictionary (Cycript)
 952
 953 - (bool) cy$setProperty:(NSString *)name to:(NSObject *)value {
 954     [self setObject:(value ?: [NSNull null]) forKey:name];
 955     return true;
 956 }
 957
 958 - (bool) cy$deleteProperty:(NSString *)name {
 959     if ([self objectForKey:name] == nil)
 960         return false;
 961     else {
 962         [self removeObjectForKey:name];
 963         return true;
 964     }
 965 }
 966
 967 @end
 968
 969 @implementation NSNumber (Cycript)
 970
 971 - (JSType) cy$JSType {
 972     // XXX: this just seems stupid
 973     return [self class] == NSCFBoolean_ ? kJSTypeBoolean : kJSTypeNumber;
 974 }
 975
 976 - (NSObject *) cy$toJSON:(NSString *)key {
 977     return self;
 978 }
 979
 980 - (NSString *) cy$toCYON {
 981     return [self cy$JSType] != kJSTypeBoolean ? [self stringValue] : [self boolValue] ? @"true" : @"false";
 982 }
 983
 984 - (JSValueRef) cy$JSValueInContext:(JSContextRef)context {
 985     return [self cy$JSType] != kJSTypeBoolean ? CYCastJSValue(context, [self doubleValue]) : CYCastJSValue(context, [self boolValue]);
 986 }
 987
 988 @end
 989
 990 @implementation NSString (Cycript)
 991
 992 - (JSType) cy$JSType {
 993     return kJSTypeString;
 994 }
 995
 996 - (NSObject *) cy$toJSON:(NSString *)key {
 997     return self;
 998 }
 999
1000 - (NSString *) cy$toCYON {
1001     // XXX: this should use the better code from Output.cpp
1002     CFMutableStringRef json(CFStringCreateMutableCopy(kCFAllocatorDefault, 0, (CFStringRef) self));
1003
1004     CFStringFindAndReplace(json, CFSTR("\\"), CFSTR("\\\\"), CFRangeMake(0, CFStringGetLength(json)), 0);
1005     CFStringFindAndReplace(json, CFSTR("\""), CFSTR("\\\""), CFRangeMake(0, CFStringGetLength(json)), 0);
1006     CFStringFindAndReplace(json, CFSTR("\t"), CFSTR("\\t"), CFRangeMake(0, CFStringGetLength(json)), 0);
1007     CFStringFindAndReplace(json, CFSTR("\r"), CFSTR("\\r"), CFRangeMake(0, CFStringGetLength(json)), 0);
1008     CFStringFindAndReplace(json, CFSTR("\n"), CFSTR("\\n"), CFRangeMake(0, CFStringGetLength(json)), 0);
1009
1010     CFStringInsert(json, 0, CFSTR("\""));
1011     CFStringAppend(json, CFSTR("\""));
1012
1013     return [reinterpret_cast<const NSString *>(json) autorelease];
1014 }
1015
1016 - (NSString *) cy$toKey {
1017     const char *value([self UTF8String]);
1018     size_t size(strlen(value));
1019
1020     if (size == 0)
1021         goto cyon;
1022
1023     if (DigitRange_[value[0]]) {
1024         size_t index(CYGetIndex(NULL, self));
1025         if (index == _not(size_t))
1026             goto cyon;
1027     } else {
1028         if (!WordStartRange_[value[0]])
1029             goto cyon;
1030         for (size_t i(1); i != size; ++i)
1031             if (!WordEndRange_[value[i]])
1032                 goto cyon;
1033     }
1034
1035     return self;
1036
1037   cyon:
1038     return [self cy$toCYON];
1039 }
1040
1041 - (void *) cy$symbol {
1042     CYPool pool;
1043     return dlsym(RTLD_DEFAULT, CYPoolCString(pool, self));
1044 }
1045
1046 @end
1047
1048 @interface CYJSObject : NSMutableDictionary {
1049     JSObjectRef object_;
1050     JSContextRef context_;
1051 }
1052
1053 - (id) initWithJSObject:(JSObjectRef)object inContext:(JSContextRef)context;
1054
1055 - (NSString *) cy$toJSON:(NSString *)key;
1056
1057 - (NSUInteger) count;
1058 - (id) objectForKey:(id)key;
1059 - (NSEnumerator *) keyEnumerator;
1060 - (void) setObject:(id)object forKey:(id)key;
1061 - (void) removeObjectForKey:(id)key;
1062
1063 @end
1064
1065 @interface CYJSArray : NSMutableArray {
1066     JSObjectRef object_;
1067     JSContextRef context_;
1068 }
1069
1070 - (id) initWithJSObject:(JSObjectRef)object inContext:(JSContextRef)context;
1071
1072 - (NSUInteger) count;
1073 - (id) objectAtIndex:(NSUInteger)index;
1074
1075 - (void) addObject:(id)anObject;
1076 - (void) insertObject:(id)anObject atIndex:(NSUInteger)index;
1077 - (void) removeLastObject;
1078 - (void) removeObjectAtIndex:(NSUInteger)index;
1079 - (void) replaceObjectAtIndex:(NSUInteger)index withObject:(id)anObject;
1080
1081 @end
1082
1083 CYRange DigitRange_    (0x3ff000000000000LLU, 0x000000000000000LLU); // 0-9
1084 CYRange WordStartRange_(0x000001000000000LLU, 0x7fffffe87fffffeLLU); // A-Za-z_$
1085 CYRange WordEndRange_  (0x3ff001000000000LLU, 0x7fffffe87fffffeLLU); // A-Za-z_$0-9
1086
1087 #define CYTry \
1088     @try
1089 #define CYCatch \
1090     @catch (id error) { \
1091         CYThrow(context, error, exception); \
1092         return NULL; \
1093     }
1094
1095 void CYThrow(JSContextRef context, JSValueRef value);
1096
1097 apr_status_t CYPoolRelease_(void *data) {
1098     id object(reinterpret_cast<id>(data));
1099     [object release];
1100     return APR_SUCCESS;
1101 }
1102
1103 id CYPoolRelease(apr_pool_t *pool, id object) {
1104     if (object == nil)
1105         return nil;
1106     else if (pool == NULL)
1107         return [object autorelease];
1108     else {
1109         apr_pool_cleanup_register(pool, object, &CYPoolRelease_, &apr_pool_cleanup_null);
1110         return object;
1111     }
1112 }
1113
1114 CFTypeRef CYPoolRelease(apr_pool_t *pool, CFTypeRef object) {
1115     return (CFTypeRef) CYPoolRelease(pool, (id) object);
1116 }
1117
1118 id CYCastNSObject_(apr_pool_t *pool, JSContextRef context, JSObjectRef object) {
1119     JSValueRef exception(NULL);
1120     bool array(JSValueIsInstanceOfConstructor(context, object, Array_, &exception));
1121     CYThrow(context, exception);
1122     id value(array ? [CYJSArray alloc] : [CYJSObject alloc]);
1123     return CYPoolRelease(pool, [value initWithJSObject:object inContext:context]);
1124 }
1125
1126 id CYCastNSObject(apr_pool_t *pool, JSContextRef context, JSObjectRef object) {
1127     if (!JSValueIsObjectOfClass(context, object, Instance_))
1128         return CYCastNSObject_(pool, context, object);
1129     else {
1130         Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(object)));
1131         return internal->GetValue();
1132     }
1133 }
1134
1135 JSStringRef CYCopyJSString(id value) {
1136     return value == NULL ? NULL : JSStringCreateWithCFString(reinterpret_cast<CFStringRef>([value description]));
1137 }
1138
1139 JSStringRef CYCopyJSString(const char *value) {
1140     return value == NULL ? NULL : JSStringCreateWithUTF8CString(value);
1141 }
1142
1143 JSStringRef CYCopyJSString(JSStringRef value) {
1144     return value == NULL ? NULL : JSStringRetain(value);
1145 }
1146
1147 JSStringRef CYCopyJSString(JSContextRef context, JSValueRef value) {
1148     if (JSValueIsNull(context, value))
1149         return NULL;
1150     JSValueRef exception(NULL);
1151     JSStringRef string(JSValueToStringCopy(context, value, &exception));
1152     CYThrow(context, exception);
1153     return string;
1154 }
1155
1156 class CYJSString {
1157   private:
1158     JSStringRef string_;
1159
1160     void Clear_() {
1161         if (string_ != NULL)
1162             JSStringRelease(string_);
1163     }
1164
1165   public:
1166     CYJSString(const CYJSString &rhs) :
1167         string_(CYCopyJSString(rhs.string_))
1168     {
1169     }
1170
1171     template <typename Arg0_>
1172     CYJSString(Arg0_ arg0) :
1173         string_(CYCopyJSString(arg0))
1174     {
1175     }
1176
1177     template <typename Arg0_, typename Arg1_>
1178     CYJSString(Arg0_ arg0, Arg1_ arg1) :
1179         string_(CYCopyJSString(arg0, arg1))
1180     {
1181     }
1182
1183     CYJSString &operator =(const CYJSString &rhs) {
1184         Clear_();
1185         string_ = CYCopyJSString(rhs.string_);
1186         return *this;
1187     }
1188
1189     ~CYJSString() {
1190         Clear_();
1191     }
1192
1193     void Clear() {
1194         Clear_();
1195         string_ = NULL;
1196     }
1197
1198     operator JSStringRef() const {
1199         return string_;
1200     }
1201 };
1202
1203 CFStringRef CYCopyCFString(JSStringRef value) {
1204     return JSStringCopyCFString(kCFAllocatorDefault, value);
1205 }
1206
1207 CFStringRef CYCopyCFString(JSContextRef context, JSValueRef value) {
1208     return CYCopyCFString(CYJSString(context, value));
1209 }
1210
1211 double CYCastDouble(const char *value, size_t size) {
1212     char *end;
1213     double number(strtod(value, &end));
1214     if (end != value + size)
1215         return NAN;
1216     return number;
1217 }
1218
1219 double CYCastDouble(const char *value) {
1220     return CYCastDouble(value, strlen(value));
1221 }
1222
1223 double CYCastDouble(JSContextRef context, JSValueRef value) {
1224     JSValueRef exception(NULL);
1225     double number(JSValueToNumber(context, value, &exception));
1226     CYThrow(context, exception);
1227     return number;
1228 }
1229
1230 CFNumberRef CYCopyCFNumber(JSContextRef context, JSValueRef value) {
1231     double number(CYCastDouble(context, value));
1232     return CFNumberCreate(kCFAllocatorDefault, kCFNumberDoubleType, &number);
1233 }
1234
1235 CFStringRef CYCopyCFString(const char *value) {
1236     return CFStringCreateWithCString(kCFAllocatorDefault, value, kCFStringEncodingUTF8);
1237 }
1238
1239 NSString *CYCastNSString(apr_pool_t *pool, const char *value) {
1240     return (NSString *) CYPoolRelease(pool, CYCopyCFString(value));
1241 }
1242
1243 NSString *CYCastNSString(apr_pool_t *pool, JSStringRef value) {
1244     return (NSString *) CYPoolRelease(pool, CYCopyCFString(value));
1245 }
1246
1247 bool CYCastBool(JSContextRef context, JSValueRef value) {
1248     return JSValueToBoolean(context, value);
1249 }
1250
1251 CFTypeRef CYCFType(apr_pool_t *pool, JSContextRef context, JSValueRef value, bool cast) {
1252     CFTypeRef object;
1253     bool copy;
1254
1255     switch (JSType type = JSValueGetType(context, value)) {
1256         case kJSTypeUndefined:
1257             object = [WebUndefined undefined];
1258             copy = false;
1259         break;
1260
1261         case kJSTypeNull:
1262             return NULL;
1263         break;
1264
1265         case kJSTypeBoolean:
1266             object = CYCastBool(context, value) ? kCFBooleanTrue : kCFBooleanFalse;
1267             copy = false;
1268         break;
1269
1270         case kJSTypeNumber:
1271             object = CYCopyCFNumber(context, value);
1272             copy = true;
1273         break;
1274
1275         case kJSTypeString:
1276             object = CYCopyCFString(context, value);
1277             copy = true;
1278         break;
1279
1280         case kJSTypeObject:
1281             // XXX: this might could be more efficient
1282             object = (CFTypeRef) CYCastNSObject(pool, context, (JSObjectRef) value);
1283             copy = false;
1284         break;
1285
1286         default:
1287             @throw [NSException exceptionWithName:NSInternalInconsistencyException reason:[NSString stringWithFormat:@"JSValueGetType() == 0x%x", type] userInfo:nil];
1288         break;
1289     }
1290
1291     if (cast != copy)
1292         return object;
1293     else if (copy)
1294         return CYPoolRelease(pool, object);
1295     else
1296         return CFRetain(object);
1297 }
1298
1299 CFTypeRef CYCastCFType(apr_pool_t *pool, JSContextRef context, JSValueRef value) {
1300     return CYCFType(pool, context, value, true);
1301 }
1302
1303 CFTypeRef CYCopyCFType(apr_pool_t *pool, JSContextRef context, JSValueRef value) {
1304     return CYCFType(pool, context, value, false);
1305 }
1306
1307 NSArray *CYCastNSArray(JSPropertyNameArrayRef names) {
1308     CYPool pool;
1309     size_t size(JSPropertyNameArrayGetCount(names));
1310     NSMutableArray *array([NSMutableArray arrayWithCapacity:size]);
1311     for (size_t index(0); index != size; ++index)
1312         [array addObject:CYCastNSString(pool, JSPropertyNameArrayGetNameAtIndex(names, index))];
1313     return array;
1314 }
1315
1316 id CYCastNSObject(apr_pool_t *pool, JSContextRef context, JSValueRef value) {
1317     return reinterpret_cast<const NSObject *>(CYCastCFType(pool, context, value));
1318 }
1319
1320 void CYThrow(JSContextRef context, JSValueRef value) {
1321     if (value == NULL)
1322         return;
1323     @throw CYCastNSObject(NULL, context, value);
1324 }
1325
1326 JSValueRef CYJSNull(JSContextRef context) {
1327     return JSValueMakeNull(context);
1328 }
1329
1330 JSValueRef CYCastJSValue(JSContextRef context, JSStringRef value) {
1331     return value == NULL ? CYJSNull(context) : JSValueMakeString(context, value);
1332 }
1333
1334 JSValueRef CYCastJSValue(JSContextRef context, const char *value) {
1335     return CYCastJSValue(context, CYJSString(value));
1336 }
1337
1338 JSValueRef CYCastJSValue(JSContextRef context, id value) {
1339     if (value == nil)
1340         return CYJSNull(context);
1341     else if ([value respondsToSelector:@selector(cy$JSValueInContext:)])
1342         return [value cy$JSValueInContext:context];
1343     else
1344         return CYMakeInstance(context, value, false);
1345 }
1346
1347 JSObjectRef CYCastJSObject(JSContextRef context, JSValueRef value) {
1348     JSValueRef exception(NULL);
1349     JSObjectRef object(JSValueToObject(context, value, &exception));
1350     CYThrow(context, exception);
1351     return object;
1352 }
1353
1354 JSValueRef CYGetProperty(JSContextRef context, JSObjectRef object, size_t index) {
1355     JSValueRef exception(NULL);
1356     JSValueRef value(JSObjectGetPropertyAtIndex(context, object, index, &exception));
1357     CYThrow(context, exception);
1358     return value;
1359 }
1360
1361 JSValueRef CYGetProperty(JSContextRef context, JSObjectRef object, JSStringRef name) {
1362     JSValueRef exception(NULL);
1363     JSValueRef value(JSObjectGetProperty(context, object, name, &exception));
1364     CYThrow(context, exception);
1365     return value;
1366 }
1367
1368 void CYSetProperty(JSContextRef context, JSObjectRef object, size_t index, JSValueRef value) {
1369     JSValueRef exception(NULL);
1370     JSObjectSetPropertyAtIndex(context, object, index, value, &exception);
1371     CYThrow(context, exception);
1372 }
1373
1374 void CYSetProperty(JSContextRef context, JSObjectRef object, JSStringRef name, JSValueRef value) {
1375     JSValueRef exception(NULL);
1376     JSObjectSetProperty(context, object, name, value, kJSPropertyAttributeNone, &exception);
1377     CYThrow(context, exception);
1378 }
1379
1380 void CYThrow(JSContextRef context, id error, JSValueRef *exception) {
1381     if (exception == NULL)
1382         throw error;
1383     *exception = CYCastJSValue(context, error);
1384 }
1385
1386 JSValueRef CYCallAsFunction(JSContextRef context, JSObjectRef function, JSObjectRef _this, size_t count, JSValueRef arguments[]) {
1387     JSValueRef exception(NULL);
1388     JSValueRef value(JSObjectCallAsFunction(context, function, _this, count, arguments, &exception));
1389     CYThrow(context, exception);
1390     return value;
1391 }
1392
1393 bool CYIsCallable(JSContextRef context, JSValueRef value) {
1394     // XXX: this isn't actually correct
1395     return value != NULL && JSValueIsObject(context, value);
1396 }
1397
1398 @implementation CYJSObject
1399
1400 - (id) initWithJSObject:(JSObjectRef)object inContext:(JSContextRef)context {
1401     if ((self = [super init]) != nil) {
1402         object_ = object;
1403         context_ = context;
1404     } return self;
1405 }
1406
1407 - (NSObject *) cy$toJSON:(NSString *)key {
1408     JSValueRef toJSON(CYGetProperty(context_, object_, toJSON_));
1409     if (!CYIsCallable(context_, toJSON))
1410         return [super cy$toJSON:key];
1411     else {
1412         JSValueRef arguments[1] = {CYCastJSValue(context_, key)};
1413         JSValueRef value(CYCallAsFunction(context_, (JSObjectRef) toJSON, object_, 1, arguments));
1414         // XXX: do I really want an NSNull here?!
1415         return CYCastNSObject(NULL, context_, value) ?: [NSNull null];
1416     }
1417 }
1418
1419 - (NSString *) cy$toCYON {
1420     JSValueRef toCYON(CYGetProperty(context_, object_, toCYON_));
1421     if (!CYIsCallable(context_, toCYON))
1422         return [super cy$toCYON];
1423     else {
1424         JSValueRef value(CYCallAsFunction(context_, (JSObjectRef) toCYON, object_, 0, NULL));
1425         return CYCastNSString(NULL, CYJSString(context_, value));
1426     }
1427 }
1428
1429 - (NSUInteger) count {
1430     JSPropertyNameArrayRef names(JSObjectCopyPropertyNames(context_, object_));
1431     size_t size(JSPropertyNameArrayGetCount(names));
1432     JSPropertyNameArrayRelease(names);
1433     return size;
1434 }
1435
1436 - (id) objectForKey:(id)key {
1437     return CYCastNSObject(NULL, context_, CYGetProperty(context_, object_, CYJSString(key))) ?: [NSNull null];
1438 }
1439
1440 - (NSEnumerator *) keyEnumerator {
1441     JSPropertyNameArrayRef names(JSObjectCopyPropertyNames(context_, object_));
1442     NSEnumerator *enumerator([CYCastNSArray(names) objectEnumerator]);
1443     JSPropertyNameArrayRelease(names);
1444     return enumerator;
1445 }
1446
1447 - (void) setObject:(id)object forKey:(id)key {
1448     CYSetProperty(context_, object_, CYJSString(key), CYCastJSValue(context_, object));
1449 }
1450
1451 - (void) removeObjectForKey:(id)key {
1452     JSValueRef exception(NULL);
1453     (void) JSObjectDeleteProperty(context_, object_, CYJSString(key), &exception);
1454     CYThrow(context_, exception);
1455 }
1456
1457 @end
1458
1459 @implementation CYJSArray
1460
1461 - (id) initWithJSObject:(JSObjectRef)object inContext:(JSContextRef)context {
1462     if ((self = [super init]) != nil) {
1463         object_ = object;
1464         context_ = context;
1465     } return self;
1466 }
1467
1468 - (NSUInteger) count {
1469     return CYCastDouble(context_, CYGetProperty(context_, object_, length_));
1470 }
1471
1472 - (id) objectAtIndex:(NSUInteger)index {
1473     JSValueRef exception(NULL);
1474     JSValueRef value(JSObjectGetPropertyAtIndex(context_, object_, index, &exception));
1475     CYThrow(context_, exception);
1476     return CYCastNSObject(NULL, context_, value) ?: [NSNull null];
1477 }
1478
1479 - (void) addObject:(id)object {
1480     JSValueRef exception(NULL);
1481     JSValueRef arguments[1];
1482     arguments[0] = CYCastJSValue(context_, object);
1483     JSObjectCallAsFunction(context_, Array_push_, object_, 1, arguments, &exception);
1484     CYThrow(context_, exception);
1485 }
1486
1487 - (void) insertObject:(id)object atIndex:(NSUInteger)index {
1488     JSValueRef exception(NULL);
1489     JSValueRef arguments[3];
1490     arguments[0] = CYCastJSValue(context_, index);
1491     arguments[1] = CYCastJSValue(context_, 0);
1492     arguments[2] = CYCastJSValue(context_, object);
1493     JSObjectCallAsFunction(context_, Array_splice_, object_, 3, arguments, &exception);
1494     CYThrow(context_, exception);
1495 }
1496
1497 - (void) removeLastObject {
1498     JSValueRef exception(NULL);
1499     JSObjectCallAsFunction(context_, Array_pop_, object_, 0, NULL, &exception);
1500     CYThrow(context_, exception);
1501 }
1502
1503 - (void) removeObjectAtIndex:(NSUInteger)index {
1504     JSValueRef exception(NULL);
1505     JSValueRef arguments[2];
1506     arguments[0] = CYCastJSValue(context_, index);
1507     arguments[1] = CYCastJSValue(context_, 1);
1508     JSObjectCallAsFunction(context_, Array_splice_, object_, 2, arguments, &exception);
1509     CYThrow(context_, exception);
1510 }
1511
1512 - (void) replaceObjectAtIndex:(NSUInteger)index withObject:(id)object {
1513     CYSetProperty(context_, object_, index, CYCastJSValue(context_, object));
1514 }
1515
1516 @end
1517
1518 NSString *CYCopyNSCYON(id value) {
1519     NSString *string;
1520
1521     if (value == nil)
1522         string = @"nil";
1523     else {
1524         Class _class(object_getClass(value));
1525         SEL sel(@selector(cy$toCYON));
1526
1527         if (Method toCYON = class_getInstanceMethod(_class, sel))
1528             string = reinterpret_cast<NSString *(*)(id, SEL)>(method_getImplementation(toCYON))(value, sel);
1529         else if (Method methodSignatureForSelector = class_getInstanceMethod(_class, @selector(methodSignatureForSelector:))) {
1530             if (reinterpret_cast<NSMethodSignature *(*)(id, SEL, SEL)>(method_getImplementation(methodSignatureForSelector))(value, @selector(methodSignatureForSelector:), sel) != nil)
1531                 string = [value cy$toCYON];
1532             else goto fail;
1533         } else fail: {
1534             if (value == NSZombie_)
1535                 string = @"_NSZombie_";
1536             else if (_class == NSZombie_)
1537                 string = [NSString stringWithFormat:@"<_NSZombie_: %p>", value];
1538             // XXX: frowny /in/ the pants
1539             else if (value == NSMessageBuilder_ || value == Object_)
1540                 string = nil;
1541             else
1542                 string = [NSString stringWithFormat:@"%@", value];
1543         }
1544
1545         // XXX: frowny pants
1546         if (string == nil)
1547             string = @"undefined";
1548     }
1549
1550     return [string retain];
1551 }
1552
1553 NSString *CYCopyNSCYON(JSContextRef context, JSValueRef value, JSValueRef *exception) {
1554     if (JSValueIsNull(context, value))
1555         return [@"null" retain];
1556
1557     CYTry {
1558         CYPoolTry {
1559             return CYCopyNSCYON(CYCastNSObject(NULL, context, value));
1560         } CYPoolCatch(NULL)
1561     } CYCatch
1562 }
1563
1564 NSString *CYPoolNSCYON(apr_pool_t *pool, id value) {
1565     return CYPoolRelease(pool, static_cast<id>(CYCopyNSCYON(value)));
1566 }
1567
1568 const char *CYPoolCCYON(apr_pool_t *pool, JSContextRef context, JSValueRef value, JSValueRef *exception) {
1569     if (NSString *json = CYCopyNSCYON(context, value, exception)) {
1570         const char *string(CYPoolCString(pool, json));
1571         [json release];
1572         return string;
1573     } else return NULL;
1574 }
1575
1576 // XXX: use objc_getAssociatedObject and objc_setAssociatedObject on 10.6
1577 struct CYInternal :
1578     CYData
1579 {
1580     JSObjectRef object_;
1581
1582     CYInternal() :
1583         object_(NULL)
1584     {
1585     }
1586
1587     ~CYInternal() {
1588         // XXX: delete object_? ;(
1589     }
1590
1591     static CYInternal *Get(id self) {
1592         CYInternal *internal(NULL);
1593         if (object_getInstanceVariable(self, "cy$internal_", reinterpret_cast<void **>(&internal)) == NULL) {
1594             // XXX: do something epic? ;P
1595         }
1596
1597         return internal;
1598     }
1599
1600     static CYInternal *Set(id self) {
1601         CYInternal *internal(NULL);
1602         if (Ivar ivar = object_getInstanceVariable(self, "cy$internal_", reinterpret_cast<void **>(&internal))) {
1603             if (internal == NULL) {
1604                 internal = new CYInternal();
1605                 object_setIvar(self, ivar, reinterpret_cast<id>(internal));
1606             }
1607         } else {
1608             // XXX: do something epic? ;P
1609         }
1610
1611         return internal;
1612     }
1613
1614     bool HasProperty(JSContextRef context, JSStringRef name) {
1615         if (object_ == NULL)
1616             return false;
1617         return JSObjectHasProperty(context, object_, name);
1618     }
1619
1620     JSValueRef GetProperty(JSContextRef context, JSStringRef name) {
1621         if (object_ == NULL)
1622             return NULL;
1623         return CYGetProperty(context, object_, name);
1624     }
1625
1626     void SetProperty(JSContextRef context, JSStringRef name, JSValueRef value) {
1627         if (object_ == NULL)
1628             object_ = JSObjectMake(context, NULL, NULL);
1629         CYSetProperty(context, object_, name, value);
1630     }
1631 };
1632
1633 JSObjectRef CYMakeSelector(JSContextRef context, SEL sel) {
1634     Selector_privateData *internal(new Selector_privateData(sel));
1635     return JSObjectMake(context, Selector_, internal);
1636 }
1637
1638 JSObjectRef CYMakePointer(JSContextRef context, void *pointer, sig::Type *type, ffi_type *ffi, JSObjectRef owner) {
1639     Pointer *internal(new Pointer(pointer, type, owner));
1640     return JSObjectMake(context, Pointer_, internal);
1641 }
1642
1643 JSObjectRef CYMakeFunctor(JSContextRef context, void (*function)(), const char *type) {
1644     Functor_privateData *internal(new Functor_privateData(type, function));
1645     return JSObjectMake(context, Functor_, internal);
1646 }
1647
1648 const char *CYPoolCString(apr_pool_t *pool, JSStringRef value) {
1649     if (pool == NULL) {
1650         const char *string([CYCastNSString(NULL, value) UTF8String]);
1651         return string;
1652     } else {
1653         size_t size(JSStringGetMaximumUTF8CStringSize(value));
1654         char *string(new(pool) char[size]);
1655         JSStringGetUTF8CString(value, string, size);
1656         return string;
1657     }
1658 }
1659
1660 const char *CYPoolCString(apr_pool_t *pool, JSContextRef context, JSValueRef value) {
1661     return JSValueIsNull(context, value) ? NULL : CYPoolCString(pool, CYJSString(context, value));
1662 }
1663
1664 bool CYGetOffset(apr_pool_t *pool, JSStringRef value, ssize_t &index) {
1665     return CYGetOffset(CYPoolCString(pool, value), index);
1666 }
1667
1668 // XXX: this macro is unhygenic
1669 #define CYCastCString(context, value) ({ \
1670     char *utf8; \
1671     if (value == NULL) \
1672         utf8 = NULL; \
1673     else if (JSStringRef string = CYCopyJSString(context, value)) { \
1674         size_t size(JSStringGetMaximumUTF8CStringSize(string)); \
1675         utf8 = reinterpret_cast<char *>(alloca(size)); \
1676         JSStringGetUTF8CString(string, utf8, size); \
1677         JSStringRelease(string); \
1678     } else \
1679         utf8 = NULL; \
1680     utf8; \
1681 })
1682
1683 void *CYCastPointer_(JSContextRef context, JSValueRef value) {
1684     switch (JSValueGetType(context, value)) {
1685         case kJSTypeNull:
1686             return NULL;
1687         /*case kJSTypeString:
1688             return dlsym(RTLD_DEFAULT, CYCastCString(context, value));
1689         case kJSTypeObject:
1690             if (JSValueIsObjectOfClass(context, value, Pointer_)) {
1691                 Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate((JSObjectRef) value)));
1692                 return internal->value_;
1693             }*/
1694         default:
1695             double number(CYCastDouble(context, value));
1696             if (std::isnan(number))
1697                 @throw [NSException exceptionWithName:NSInvalidArgumentException reason:@"cannot convert value to pointer" userInfo:nil];
1698             return reinterpret_cast<void *>(static_cast<uintptr_t>(static_cast<long long>(number)));
1699     }
1700 }
1701
1702 template <typename Type_>
1703 _finline Type_ CYCastPointer(JSContextRef context, JSValueRef value) {
1704     return reinterpret_cast<Type_>(CYCastPointer_(context, value));
1705 }
1706
1707 SEL CYCastSEL(JSContextRef context, JSValueRef value) {
1708     if (JSValueIsObjectOfClass(context, value, Selector_)) {
1709         Selector_privateData *internal(reinterpret_cast<Selector_privateData *>(JSObjectGetPrivate((JSObjectRef) value)));
1710         return reinterpret_cast<SEL>(internal->value_);
1711     } else
1712         return CYCastPointer<SEL>(context, value);
1713 }
1714
1715 void CYPoolFFI(apr_pool_t *pool, JSContextRef context, sig::Type *type, ffi_type *ffi, void *data, JSValueRef value) {
1716     switch (type->primitive) {
1717         case sig::boolean_P:
1718             *reinterpret_cast<bool *>(data) = JSValueToBoolean(context, value);
1719         break;
1720
1721 #define CYPoolFFI_(primitive, native) \
1722         case sig::primitive ## _P: \
1723             *reinterpret_cast<native *>(data) = CYCastDouble(context, value); \
1724         break;
1725
1726         CYPoolFFI_(uchar, unsigned char)
1727         CYPoolFFI_(char, char)
1728         CYPoolFFI_(ushort, unsigned short)
1729         CYPoolFFI_(short, short)
1730         CYPoolFFI_(ulong, unsigned long)
1731         CYPoolFFI_(long, long)
1732         CYPoolFFI_(uint, unsigned int)
1733         CYPoolFFI_(int, int)
1734         CYPoolFFI_(ulonglong, unsigned long long)
1735         CYPoolFFI_(longlong, long long)
1736         CYPoolFFI_(float, float)
1737         CYPoolFFI_(double, double)
1738
1739         case sig::object_P:
1740         case sig::typename_P:
1741             *reinterpret_cast<id *>(data) = CYCastNSObject(pool, context, value);
1742         break;
1743
1744         case sig::selector_P:
1745             *reinterpret_cast<SEL *>(data) = CYCastSEL(context, value);
1746         break;
1747
1748         case sig::pointer_P:
1749             *reinterpret_cast<void **>(data) = CYCastPointer<void *>(context, value);
1750         break;
1751
1752         case sig::string_P:
1753             *reinterpret_cast<const char **>(data) = CYPoolCString(pool, context, value);
1754         break;
1755
1756         case sig::struct_P: {
1757             uint8_t *base(reinterpret_cast<uint8_t *>(data));
1758             JSObjectRef aggregate(JSValueIsObject(context, value) ? (JSObjectRef) value : NULL);
1759             for (size_t index(0); index != type->data.signature.count; ++index) {
1760                 sig::Element *element(&type->data.signature.elements[index]);
1761                 ffi_type *field(ffi->elements[index]);
1762
1763                 JSValueRef rhs;
1764                 if (aggregate == NULL)
1765                     rhs = value;
1766                 else {
1767                     rhs = CYGetProperty(context, aggregate, index);
1768                     if (JSValueIsUndefined(context, rhs)) {
1769                         if (element->name != NULL)
1770                             rhs = CYGetProperty(context, aggregate, CYJSString(element->name));
1771                         else
1772                             goto undefined;
1773                         if (JSValueIsUndefined(context, rhs)) undefined:
1774                             @throw [NSException exceptionWithName:NSInvalidArgumentException reason:@"unable to extract structure value" userInfo:nil];
1775                     }
1776                 }
1777
1778                 CYPoolFFI(pool, context, element->type, field, base, rhs);
1779                 // XXX: alignment?
1780                 base += field->size;
1781             }
1782         } break;
1783
1784         case sig::void_P:
1785         break;
1786
1787         default:
1788             NSLog(@"CYPoolFFI(%c)\n", type->primitive);
1789             _assert(false);
1790     }
1791 }
1792
1793 JSValueRef CYFromFFI(JSContextRef context, sig::Type *type, ffi_type *ffi, void *data, bool initialize = false, JSObjectRef owner = NULL) {
1794     JSValueRef value;
1795
1796     switch (type->primitive) {
1797         case sig::boolean_P:
1798             value = CYCastJSValue(context, *reinterpret_cast<bool *>(data));
1799         break;
1800
1801 #define CYFromFFI_(primitive, native) \
1802         case sig::primitive ## _P: \
1803             value = CYCastJSValue(context, *reinterpret_cast<native *>(data)); \
1804         break;
1805
1806         CYFromFFI_(uchar, unsigned char)
1807         CYFromFFI_(char, char)
1808         CYFromFFI_(ushort, unsigned short)
1809         CYFromFFI_(short, short)
1810         CYFromFFI_(ulong, unsigned long)
1811         CYFromFFI_(long, long)
1812         CYFromFFI_(uint, unsigned int)
1813         CYFromFFI_(int, int)
1814         CYFromFFI_(ulonglong, unsigned long long)
1815         CYFromFFI_(longlong, long long)
1816         CYFromFFI_(float, float)
1817         CYFromFFI_(double, double)
1818
1819         case sig::object_P: {
1820             if (id object = *reinterpret_cast<id *>(data)) {
1821                 value = CYCastJSValue(context, object);
1822                 if (initialize)
1823                     [object release];
1824             } else goto null;
1825         } break;
1826
1827         case sig::typename_P:
1828             value = CYMakeInstance(context, *reinterpret_cast<Class *>(data), true);
1829         break;
1830
1831         case sig::selector_P:
1832             if (SEL sel = *reinterpret_cast<SEL *>(data))
1833                 value = CYMakeSelector(context, sel);
1834             else goto null;
1835         break;
1836
1837         case sig::pointer_P:
1838             if (void *pointer = *reinterpret_cast<void **>(data))
1839                 value = CYMakePointer(context, pointer, type->data.data.type, ffi, owner);
1840             else goto null;
1841         break;
1842
1843         case sig::string_P:
1844             if (char *utf8 = *reinterpret_cast<char **>(data))
1845                 value = CYCastJSValue(context, utf8);
1846             else goto null;
1847         break;
1848
1849         case sig::struct_P:
1850             value = CYMakeStruct(context, data, type, ffi, owner);
1851         break;
1852
1853         case sig::void_P:
1854             value = CYJSUndefined(context);
1855         break;
1856
1857         null:
1858             value = CYJSNull(context);
1859         break;
1860
1861         default:
1862             NSLog(@"CYFromFFI(%c)\n", type->primitive);
1863             _assert(false);
1864     }
1865
1866     return value;
1867 }
1868
1869 static bool CYImplements(id object, Class _class, SEL selector, bool devoid) {
1870     if (Method method = class_getInstanceMethod(_class, selector)) {
1871         if (!devoid)
1872             return true;
1873         char type[16];
1874         method_getReturnType(method, type, sizeof(type));
1875         if (type[0] != 'v')
1876             return true;
1877     }
1878
1879     // XXX: possibly use a more "awesome" check?
1880     return false;
1881 }
1882
1883 const char *CYPoolTypeEncoding(apr_pool_t *pool, Class _class, SEL sel, Method method) {
1884     if (method != NULL)
1885         return method_getTypeEncoding(method);
1886     else if (NSString *type = [[Bridge_ objectAtIndex:1] objectForKey:CYCastNSString(pool, sel_getName(sel))])
1887         return CYPoolCString(pool, type);
1888     else
1889         return NULL;
1890 }
1891
1892 void FunctionClosure_(ffi_cif *cif, void *result, void **arguments, void *arg) {
1893     Closure_privateData *internal(reinterpret_cast<Closure_privateData *>(arg));
1894
1895     JSContextRef context(internal->context_);
1896
1897     size_t count(internal->cif_.nargs);
1898     JSValueRef values[count];
1899
1900     for (size_t index(0); index != count; ++index)
1901         values[index] = CYFromFFI(context, internal->signature_.elements[1 + index].type, internal->cif_.arg_types[index], arguments[index]);
1902
1903     JSValueRef value(CYCallAsFunction(context, internal->function_, NULL, count, values));
1904     CYPoolFFI(NULL, context, internal->signature_.elements[0].type, internal->cif_.rtype, result, value);
1905 }
1906
1907 void MessageClosure_(ffi_cif *cif, void *result, void **arguments, void *arg) {
1908     Closure_privateData *internal(reinterpret_cast<Closure_privateData *>(arg));
1909
1910     JSContextRef context(internal->context_);
1911
1912     size_t count(internal->cif_.nargs);
1913     JSValueRef values[count];
1914
1915     for (size_t index(0); index != count; ++index)
1916         values[index] = CYFromFFI(context, internal->signature_.elements[1 + index].type, internal->cif_.arg_types[index], arguments[index]);
1917
1918     JSObjectRef _this(CYCastJSObject(context, values[0]));
1919
1920     JSValueRef value(CYCallAsFunction(context, internal->function_, _this, count - 2, values + 2));
1921     CYPoolFFI(NULL, context, internal->signature_.elements[0].type, internal->cif_.rtype, result, value);
1922 }
1923
1924 Closure_privateData *CYMakeFunctor_(JSContextRef context, JSObjectRef function, const char *type, void (*callback)(ffi_cif *, void *, void **, void *)) {
1925     // XXX: in case of exceptions this will leak
1926     // XXX: in point of fact, this may /need/ to leak :(
1927     Closure_privateData *internal(new Closure_privateData(type));
1928
1929     ffi_closure *closure((ffi_closure *) _syscall(mmap(
1930         NULL, sizeof(ffi_closure),
1931         PROT_READ | PROT_WRITE, MAP_ANON | MAP_PRIVATE,
1932         -1, 0
1933     )));
1934
1935     ffi_status status(ffi_prep_closure(closure, &internal->cif_, callback, internal));
1936     _assert(status == FFI_OK);
1937
1938     _syscall(mprotect(closure, sizeof(*closure), PROT_READ | PROT_EXEC));
1939
1940     internal->value_ = closure;
1941
1942     internal->context_ = CYGetJSContext();
1943     internal->function_ = function;
1944
1945     return internal;
1946 }
1947
1948 JSObjectRef CYMakeFunctor(JSContextRef context, JSObjectRef function, const char *type) {
1949     Closure_privateData *internal(CYMakeFunctor_(context, function, type, &FunctionClosure_));
1950     return JSObjectMake(context, Functor_, internal);
1951 }
1952
1953 static JSObjectRef CYMakeFunctor(JSContextRef context, JSValueRef value, const char *type) {
1954     JSValueRef exception(NULL);
1955     bool function(JSValueIsInstanceOfConstructor(context, value, Function_, &exception));
1956     CYThrow(context, exception);
1957
1958     if (function) {
1959         JSObjectRef function(CYCastJSObject(context, value));
1960         return CYMakeFunctor(context, function, type);
1961     } else {
1962         void (*function)()(CYCastPointer<void (*)()>(context, value));
1963         return CYMakeFunctor(context, function, type);
1964     }
1965 }
1966
1967 static JSObjectRef CYMakeMessage(JSContextRef context, SEL sel, IMP imp, const char *type) {
1968     Message_privateData *internal(new Message_privateData(sel, type, imp));
1969     return JSObjectMake(context, Message_, internal);
1970 }
1971
1972 static IMP CYMakeMessage(JSContextRef context, JSValueRef value, const char *type) {
1973     JSObjectRef function(CYCastJSObject(context, value));
1974     Closure_privateData *internal(CYMakeFunctor_(context, function, type, &MessageClosure_));
1975     return reinterpret_cast<IMP>(internal->GetValue());
1976 }
1977
1978 static bool Prototype_hasProperty(JSContextRef context, JSObjectRef object, JSStringRef property) {
1979     Prototype *internal(reinterpret_cast<Prototype *>(JSObjectGetPrivate(object)));
1980     Class _class(internal->GetValue());
1981
1982     CYPool pool;
1983     const char *name(CYPoolCString(pool, property));
1984
1985     if (SEL sel = sel_getUid(name))
1986         if (class_getInstanceMethod(_class, sel) != NULL)
1987             return true;
1988
1989     return false;
1990 }
1991
1992 static JSValueRef Prototype_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) {
1993     Prototype *internal(reinterpret_cast<Prototype *>(JSObjectGetPrivate(object)));
1994     Class _class(internal->GetValue());
1995
1996     CYPool pool;
1997     const char *name(CYPoolCString(pool, property));
1998
1999     if (SEL sel = sel_getUid(name))
2000         if (Method method = class_getInstanceMethod(_class, sel))
2001             return CYMakeMessage(context, sel, method_getImplementation(method), method_getTypeEncoding(method));
2002
2003     return NULL;
2004 }
2005
2006 static bool Prototype_setProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef value, JSValueRef *exception) {
2007     Prototype *internal(reinterpret_cast<Prototype *>(JSObjectGetPrivate(object)));
2008     Class _class(internal->GetValue());
2009
2010     CYPool pool;
2011     const char *name(CYPoolCString(pool, property));
2012
2013     SEL sel(sel_registerName(name));
2014
2015     Method method(class_getInstanceMethod(_class, sel));
2016
2017     const char *type;
2018     IMP imp;
2019
2020     if (JSValueIsObjectOfClass(context, value, Message_)) {
2021         Message_privateData *message(reinterpret_cast<Message_privateData *>(JSObjectGetPrivate((JSObjectRef) value)));
2022         type = sig::Unparse(pool, &message->signature_);
2023         imp = reinterpret_cast<IMP>(message->GetValue());
2024     } else {
2025         type = CYPoolTypeEncoding(pool, _class, sel, method);
2026         imp = CYMakeMessage(context, value, type);
2027     }
2028
2029     if (method != NULL)
2030         method_setImplementation(method, imp);
2031     else
2032         class_replaceMethod(_class, sel, imp, type);
2033
2034     return true;
2035 }
2036
2037 #if !__OBJC2__
2038 static bool Prototype_deleteProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) {
2039     Prototype *internal(reinterpret_cast<Prototype *>(JSObjectGetPrivate(object)));
2040     Class _class(internal->GetValue());
2041
2042     CYPool pool;
2043     const char *name(CYPoolCString(pool, property));
2044
2045     if (SEL sel = sel_getUid(name))
2046         if (Method method = class_getInstanceMethod(_class, sel)) {
2047             objc_method_list list = {NULL, 1, {method}};
2048             class_removeMethods(_class, &list);
2049             return true;
2050         }
2051
2052     return false;
2053 }
2054 #endif
2055
2056 static void Prototype_getPropertyNames(JSContextRef context, JSObjectRef object, JSPropertyNameAccumulatorRef names) {
2057     Prototype *internal(reinterpret_cast<Prototype *>(JSObjectGetPrivate(object)));
2058     Class _class(internal->GetValue());
2059
2060     unsigned int size;
2061     Method *data(class_copyMethodList(_class, &size));
2062     for (size_t i(0); i != size; ++i)
2063         JSPropertyNameAccumulatorAddName(names, CYJSString(sel_getName(method_getName(data[i]))));
2064     free(data);
2065 }
2066
2067 static bool Instance_hasProperty(JSContextRef context, JSObjectRef object, JSStringRef property) {
2068     Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(object)));
2069     id self(internal->GetValue());
2070
2071     if (JSStringIsEqualToUTF8CString(property, "$cyi"))
2072         return true;
2073
2074     CYPool pool;
2075     NSString *name(CYCastNSString(pool, property));
2076
2077     if (CYInternal *internal = CYInternal::Get(self))
2078         if (internal->HasProperty(context, property))
2079             return true;
2080
2081     CYPoolTry {
2082         if ([self cy$hasProperty:name])
2083             return true;
2084     } CYPoolCatch(false)
2085
2086     const char *string(CYPoolCString(pool, name));
2087     Class _class(object_getClass(self));
2088
2089     if (class_getProperty(_class, string) != NULL)
2090         return true;
2091
2092     if (SEL sel = sel_getUid(string))
2093         if (CYImplements(self, _class, sel, true))
2094             return true;
2095
2096     return false;
2097 }
2098
2099 static JSValueRef Instance_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) {
2100     Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(object)));
2101     id self(internal->GetValue());
2102
2103     if (JSStringIsEqualToUTF8CString(property, "$cyi"))
2104         return Internal::Make(context, self, object);
2105
2106     CYTry {
2107         CYPool pool;
2108         NSString *name(CYCastNSString(pool, property));
2109
2110         if (CYInternal *internal = CYInternal::Get(self))
2111             if (JSValueRef value = internal->GetProperty(context, property))
2112                 return value;
2113
2114         CYPoolTry {
2115             if (NSObject *data = [self cy$getProperty:name])
2116                 return CYCastJSValue(context, data);
2117         } CYPoolCatch(NULL)
2118
2119         const char *string(CYPoolCString(pool, name));
2120         Class _class(object_getClass(self));
2121
2122         if (objc_property_t property = class_getProperty(_class, string)) {
2123             PropertyAttributes attributes(property);
2124             SEL sel(sel_registerName(attributes.Getter()));
2125             return CYSendMessage(pool, context, self, sel, 0, NULL, false, exception);
2126         }
2127
2128         if (SEL sel = sel_getUid(string))
2129             if (CYImplements(self, _class, sel, true))
2130                 return CYSendMessage(pool, context, self, sel, 0, NULL, false, exception);
2131
2132         return NULL;
2133     } CYCatch
2134 }
2135
2136 static bool Instance_setProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef value, JSValueRef *exception) {
2137     Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(object)));
2138     id self(internal->GetValue());
2139
2140     CYPool pool;
2141
2142     CYTry {
2143         NSString *name(CYCastNSString(pool, property));
2144         NSString *data(CYCastNSObject(pool, context, value));
2145
2146         CYPoolTry {
2147             if ([self cy$setProperty:name to:data])
2148                 return true;
2149         } CYPoolCatch(NULL)
2150
2151         const char *string(CYPoolCString(pool, name));
2152         Class _class(object_getClass(self));
2153
2154         if (objc_property_t property = class_getProperty(_class, string)) {
2155             PropertyAttributes attributes(property);
2156             if (const char *setter = attributes.Setter()) {
2157                 SEL sel(sel_registerName(setter));
2158                 JSValueRef arguments[1] = {value};
2159                 CYSendMessage(pool, context, self, sel, 1, arguments, false, exception);
2160                 return true;
2161             }
2162         }
2163
2164         size_t length(strlen(string));
2165
2166         char set[length + 5];
2167
2168         set[0] = 's';
2169         set[1] = 'e';
2170         set[2] = 't';
2171
2172         if (string[0] != '\0') {
2173             set[3] = toupper(string[0]);
2174             memcpy(set + 4, string + 1, length - 1);
2175         }
2176
2177         set[length + 3] = ':';
2178         set[length + 4] = '\0';
2179
2180         if (SEL sel = sel_getUid(set))
2181             if (CYImplements(self, _class, sel, false)) {
2182                 JSValueRef arguments[1] = {value};
2183                 CYSendMessage(pool, context, self, sel, 1, arguments, false, exception);
2184             }
2185
2186         if (CYInternal *internal = CYInternal::Set(self)) {
2187             internal->SetProperty(context, property, value);
2188             return true;
2189         }
2190
2191         return false;
2192     } CYCatch
2193 }
2194
2195 static bool Instance_deleteProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) {
2196     Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(object)));
2197     id self(internal->GetValue());
2198
2199     CYTry {
2200         CYPoolTry {
2201             NSString *name(CYCastNSString(NULL, property));
2202             return [self cy$deleteProperty:name];
2203         } CYPoolCatch(NULL)
2204     } CYCatch
2205 }
2206
2207 static void Instance_getPropertyNames(JSContextRef context, JSObjectRef object, JSPropertyNameAccumulatorRef names) {
2208     Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(object)));
2209     id self(internal->GetValue());
2210
2211     CYPool pool;
2212     Class _class(object_getClass(self));
2213
2214     {
2215         unsigned int size;
2216         objc_property_t *data(class_copyPropertyList(_class, &size));
2217         for (size_t i(0); i != size; ++i)
2218             JSPropertyNameAccumulatorAddName(names, CYJSString(property_getName(data[i])));
2219         free(data);
2220     }
2221 }
2222
2223 static JSObjectRef Instance_callAsConstructor(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
2224     CYTry {
2225         Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(object)));
2226         JSObjectRef value(Instance::Make(context, [internal->GetValue() alloc], Instance::Uninitialized));
2227         return value;
2228     } CYCatch
2229 }
2230
2231 static bool Internal_hasProperty(JSContextRef context, JSObjectRef object, JSStringRef property) {
2232     Internal *internal(reinterpret_cast<Internal *>(JSObjectGetPrivate(object)));
2233     CYPool pool;
2234
2235     id self(internal->GetValue());
2236     const char *name(CYPoolCString(pool, property));
2237
2238     if (object_getInstanceVariable(self, name, NULL) != NULL)
2239         return true;
2240
2241     return false;
2242 }
2243
2244 static JSValueRef Internal_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) {
2245     Internal *internal(reinterpret_cast<Internal *>(JSObjectGetPrivate(object)));
2246     CYPool pool;
2247
2248     CYTry {
2249         id self(internal->GetValue());
2250         const char *name(CYPoolCString(pool, property));
2251
2252         if (Ivar ivar = object_getInstanceVariable(self, name, NULL)) {
2253             Type_privateData type(pool, ivar_getTypeEncoding(ivar));
2254             return CYFromFFI(context, type.type_, type.GetFFI(), reinterpret_cast<uint8_t *>(self) + ivar_getOffset(ivar));
2255         }
2256
2257         return NULL;
2258     } CYCatch
2259 }
2260
2261 static bool Internal_setProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef value, JSValueRef *exception) {
2262     Internal *internal(reinterpret_cast<Internal *>(JSObjectGetPrivate(object)));
2263     CYPool pool;
2264
2265     CYTry {
2266         id self(internal->GetValue());
2267         const char *name(CYPoolCString(pool, property));
2268
2269         if (Ivar ivar = object_getInstanceVariable(self, name, NULL)) {
2270             Type_privateData type(pool, ivar_getTypeEncoding(ivar));
2271             CYPoolFFI(pool, context, type.type_, type.GetFFI(), reinterpret_cast<uint8_t *>(self) + ivar_getOffset(ivar), value);
2272             return true;
2273         }
2274
2275         return false;
2276     } CYCatch
2277 }
2278
2279 static void Internal_getPropertyNames_(Class _class, JSPropertyNameAccumulatorRef names) {
2280     if (Class super = class_getSuperclass(_class))
2281         Internal_getPropertyNames_(super, names);
2282
2283     unsigned int size;
2284     Ivar *data(class_copyIvarList(_class, &size));
2285     for (size_t i(0); i != size; ++i)
2286         JSPropertyNameAccumulatorAddName(names, CYJSString(ivar_getName(data[i])));
2287     free(data);
2288 }
2289
2290 static void Internal_getPropertyNames(JSContextRef context, JSObjectRef object, JSPropertyNameAccumulatorRef names) {
2291     Internal *internal(reinterpret_cast<Internal *>(JSObjectGetPrivate(object)));
2292     CYPool pool;
2293
2294     id self(internal->GetValue());
2295     Class _class(object_getClass(self));
2296
2297     Internal_getPropertyNames_(_class, names);
2298 }
2299
2300 static JSValueRef Internal_callAsFunction_$cya(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
2301     Internal *internal(reinterpret_cast<Internal *>(JSObjectGetPrivate(object)));
2302     return internal->owner_;
2303 }
2304
2305 bool Index_(apr_pool_t *pool, Struct_privateData *internal, JSStringRef property, ssize_t &index, uint8_t *&base) {
2306     Type_privateData *typical(internal->type_);
2307     sig::Type *type(typical->type_);
2308     if (type == NULL)
2309         return false;
2310
2311     const char *name(CYPoolCString(pool, property));
2312     size_t length(strlen(name));
2313     double number(CYCastDouble(name, length));
2314
2315     size_t count(type->data.signature.count);
2316
2317     if (std::isnan(number)) {
2318         if (property == NULL)
2319             return false;
2320
2321         sig::Element *elements(type->data.signature.elements);
2322
2323         for (size_t local(0); local != count; ++local) {
2324             sig::Element *element(&elements[local]);
2325             if (element->name != NULL && strcmp(name, element->name) == 0) {
2326                 index = local;
2327                 goto base;
2328             }
2329         }
2330
2331         return false;
2332     } else {
2333         index = static_cast<ssize_t>(number);
2334         if (index != number || index < 0 || static_cast<size_t>(index) >= count)
2335             return false;
2336     }
2337
2338   base:
2339     ffi_type **elements(typical->GetFFI()->elements);
2340
2341     base = reinterpret_cast<uint8_t *>(internal->value_);
2342     for (ssize_t local(0); local != index; ++local)
2343         base += elements[local]->size;
2344
2345     return true;
2346 }
2347
2348 static JSValueRef Pointer_getIndex(JSContextRef context, JSObjectRef object, size_t index, JSValueRef *exception) {
2349     Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(object)));
2350     Type_privateData *typical(internal->type_);
2351
2352     ffi_type *ffi(typical->GetFFI());
2353
2354     uint8_t *base(reinterpret_cast<uint8_t *>(internal->value_));
2355     base += ffi->size * index;
2356
2357     JSObjectRef owner(internal->owner_ ?: object);
2358
2359     CYTry {
2360         return CYFromFFI(context, typical->type_, ffi, base, false, owner);
2361     } CYCatch
2362 }
2363
2364 static JSValueRef Pointer_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) {
2365     CYPool pool;
2366     Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(object)));
2367     Type_privateData *typical(internal->type_);
2368
2369     if (typical->type_ == NULL)
2370         return NULL;
2371
2372     ssize_t offset;
2373     if (!CYGetOffset(pool, property, offset))
2374         return NULL;
2375
2376     return Pointer_getIndex(context, object, offset, exception);
2377 }
2378
2379 static JSValueRef Pointer_getProperty_$cyi(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) {
2380     return Pointer_getIndex(context, object, 0, exception);
2381 }
2382
2383 static bool Pointer_setIndex(JSContextRef context, JSObjectRef object, size_t index, JSValueRef value, JSValueRef *exception) {
2384     Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(object)));
2385     Type_privateData *typical(internal->type_);
2386
2387     ffi_type *ffi(typical->GetFFI());
2388
2389     uint8_t *base(reinterpret_cast<uint8_t *>(internal->value_));
2390     base += ffi->size * index;
2391
2392     CYTry {
2393         CYPoolFFI(NULL, context, typical->type_, ffi, base, value);
2394         return true;
2395     } CYCatch
2396 }
2397
2398 static bool Pointer_setProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef value, JSValueRef *exception) {
2399     CYPool pool;
2400     Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(object)));
2401     Type_privateData *typical(internal->type_);
2402
2403     if (typical->type_ == NULL)
2404         return NULL;
2405
2406     ssize_t offset;
2407     if (!CYGetOffset(pool, property, offset))
2408         return NULL;
2409
2410     return Pointer_setIndex(context, object, offset, value, exception);
2411 }
2412
2413 static bool Pointer_setProperty_$cyi(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef value, JSValueRef *exception) {
2414     return Pointer_setIndex(context, object, 0, value, exception);
2415 }
2416
2417 static JSValueRef Struct_callAsFunction_$cya(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
2418     Struct_privateData *internal(reinterpret_cast<Struct_privateData *>(JSObjectGetPrivate(_this)));
2419     Type_privateData *typical(internal->type_);
2420     return CYMakePointer(context, internal->value_, typical->type_, typical->ffi_, _this);
2421 }
2422
2423 static JSValueRef Struct_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) {
2424     CYPool pool;
2425     Struct_privateData *internal(reinterpret_cast<Struct_privateData *>(JSObjectGetPrivate(object)));
2426     Type_privateData *typical(internal->type_);
2427
2428     ssize_t index;
2429     uint8_t *base;
2430
2431     if (!Index_(pool, internal, property, index, base))
2432         return NULL;
2433
2434     JSObjectRef owner(internal->owner_ ?: object);
2435
2436     CYTry {
2437         return CYFromFFI(context, typical->type_->data.signature.elements[index].type, typical->GetFFI()->elements[index], base, false, owner);
2438     } CYCatch
2439 }
2440
2441 static bool Struct_setProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef value, JSValueRef *exception) {
2442     CYPool pool;
2443     Struct_privateData *internal(reinterpret_cast<Struct_privateData *>(JSObjectGetPrivate(object)));
2444     Type_privateData *typical(internal->type_);
2445
2446     ssize_t index;
2447     uint8_t *base;
2448
2449     if (!Index_(pool, internal, property, index, base))
2450         return false;
2451
2452     CYTry {
2453         CYPoolFFI(NULL, context, typical->type_->data.signature.elements[index].type, typical->GetFFI()->elements[index], base, value);
2454         return true;
2455     } CYCatch
2456 }
2457
2458 static void Struct_getPropertyNames(JSContextRef context, JSObjectRef object, JSPropertyNameAccumulatorRef names) {
2459     Struct_privateData *internal(reinterpret_cast<Struct_privateData *>(JSObjectGetPrivate(object)));
2460     Type_privateData *typical(internal->type_);
2461     sig::Type *type(typical->type_);
2462
2463     if (type == NULL)
2464         return;
2465
2466     size_t count(type->data.signature.count);
2467     sig::Element *elements(type->data.signature.elements);
2468
2469     char number[32];
2470
2471     for (size_t index(0); index != count; ++index) {
2472         const char *name;
2473         name = elements[index].name;
2474
2475         if (name == NULL) {
2476             sprintf(number, "%lu", index);
2477             name = number;
2478         }
2479
2480         JSPropertyNameAccumulatorAddName(names, CYJSString(name));
2481     }
2482 }
2483
2484 JSValueRef CYCallFunction(apr_pool_t *pool, JSContextRef context, size_t setups, void *setup[], size_t count, const JSValueRef arguments[], bool initialize, JSValueRef *exception, sig::Signature *signature, ffi_cif *cif, void (*function)()) {
2485     CYTry {
2486         if (setups + count != signature->count - 1)
2487             @throw [NSException exceptionWithName:NSInvalidArgumentException reason:@"incorrect number of arguments to ffi function" userInfo:nil];
2488
2489         size_t size(setups + count);
2490         void *values[size];
2491         memcpy(values, setup, sizeof(void *) * setups);
2492
2493         for (size_t index(setups); index != size; ++index) {
2494             sig::Element *element(&signature->elements[index + 1]);
2495             ffi_type *ffi(cif->arg_types[index]);
2496             // XXX: alignment?
2497             values[index] = new(pool) uint8_t[ffi->size];
2498             CYPoolFFI(pool, context, element->type, ffi, values[index], arguments[index - setups]);
2499         }
2500
2501         uint8_t value[cif->rtype->size];
2502         ffi_call(cif, function, value, values);
2503
2504         return CYFromFFI(context, signature->elements[0].type, cif->rtype, value, initialize);
2505     } CYCatch
2506 }
2507
2508 static JSValueRef ObjectiveC_Classes_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) {
2509     CYTry {
2510         CYPool pool;
2511         NSString *name(CYCastNSString(pool, property));
2512         if (Class _class = NSClassFromString(name))
2513             return CYMakeInstance(context, _class, true);
2514         return NULL;
2515     } CYCatch
2516 }
2517
2518 static void ObjectiveC_Classes_getPropertyNames(JSContextRef context, JSObjectRef object, JSPropertyNameAccumulatorRef names) {
2519     size_t size(objc_getClassList(NULL, 0));
2520     Class *data(reinterpret_cast<Class *>(malloc(sizeof(Class) * size)));
2521
2522   get:
2523     size_t writ(objc_getClassList(data, size));
2524     if (size < writ) {
2525         size = writ;
2526         if (Class *copy = reinterpret_cast<Class *>(realloc(data, sizeof(Class) * writ))) {
2527             data = copy;
2528             goto get;
2529         } else goto done;
2530     }
2531
2532     for (size_t i(0); i != writ; ++i)
2533         JSPropertyNameAccumulatorAddName(names, CYJSString(class_getName(data[i])));
2534
2535   done:
2536     free(data);
2537 }
2538
2539 static JSValueRef ObjectiveC_Image_Classes_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) {
2540     const char *internal(reinterpret_cast<const char *>(JSObjectGetPrivate(object)));
2541
2542     CYTry {
2543         CYPool pool;
2544         const char *name(CYPoolCString(pool, property));
2545         unsigned int size;
2546         const char **data(objc_copyClassNamesForImage(internal, &size));
2547         JSValueRef value;
2548         for (size_t i(0); i != size; ++i)
2549             if (strcmp(name, data[i]) == 0) {
2550                 if (Class _class = objc_getClass(name)) {
2551                     value = CYMakeInstance(context, _class, true);
2552                     goto free;
2553                 } else
2554                     break;
2555             }
2556         value = NULL;
2557       free:
2558         free(data);
2559         return value;
2560     } CYCatch
2561 }
2562
2563 static void ObjectiveC_Image_Classes_getPropertyNames(JSContextRef context, JSObjectRef object, JSPropertyNameAccumulatorRef names) {
2564     const char *internal(reinterpret_cast<const char *>(JSObjectGetPrivate(object)));
2565     unsigned int size;
2566     const char **data(objc_copyClassNamesForImage(internal, &size));
2567     for (size_t i(0); i != size; ++i)
2568         JSPropertyNameAccumulatorAddName(names, CYJSString(data[i]));
2569     free(data);
2570 }
2571
2572 static JSValueRef ObjectiveC_Images_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) {
2573     CYTry {
2574         CYPool pool;
2575         const char *name(CYPoolCString(pool, property));
2576         unsigned int size;
2577         const char **data(objc_copyImageNames(&size));
2578         for (size_t i(0); i != size; ++i)
2579             if (strcmp(name, data[i]) == 0) {
2580                 name = data[i];
2581                 goto free;
2582             }
2583         name = NULL;
2584       free:
2585         free(data);
2586         if (name == NULL)
2587             return NULL;
2588         JSObjectRef value(JSObjectMake(context, NULL, NULL));
2589         CYSetProperty(context, value, CYJSString("classes"), JSObjectMake(context, ObjectiveC_Image_Classes_, const_cast<char *>(name)));
2590         return value;
2591     } CYCatch
2592 }
2593
2594 static void ObjectiveC_Images_getPropertyNames(JSContextRef context, JSObjectRef object, JSPropertyNameAccumulatorRef names) {
2595     unsigned int size;
2596     const char **data(objc_copyImageNames(&size));
2597     for (size_t i(0); i != size; ++i)
2598         JSPropertyNameAccumulatorAddName(names, CYJSString(data[i]));
2599     free(data);
2600 }
2601
2602 static JSValueRef ObjectiveC_Protocols_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) {
2603     CYTry {
2604         CYPool pool;
2605         NSString *name(CYCastNSString(pool, property));
2606         if (Protocol *protocol = NSProtocolFromString(name))
2607             return CYMakeInstance(context, protocol, true);
2608         return NULL;
2609     } CYCatch
2610 }
2611
2612 static void ObjectiveC_Protocols_getPropertyNames(JSContextRef context, JSObjectRef object, JSPropertyNameAccumulatorRef names) {
2613     unsigned int size;
2614     Protocol **data(objc_copyProtocolList(&size));
2615     for (size_t i(0); i != size; ++i)
2616         JSPropertyNameAccumulatorAddName(names, CYJSString(protocol_getName(data[i])));
2617     free(data);
2618 }
2619
2620 static JSValueRef Runtime_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) {
2621     if (JSStringIsEqualToUTF8CString(property, "nil"))
2622         return Instance::Make(context, nil);
2623
2624     CYTry {
2625         CYPool pool;
2626         NSString *name(CYCastNSString(pool, property));
2627         if (Class _class = NSClassFromString(name))
2628             return CYMakeInstance(context, _class, true);
2629         if (NSMutableArray *entry = [[Bridge_ objectAtIndex:0] objectForKey:name])
2630             switch ([[entry objectAtIndex:0] intValue]) {
2631                 case 0:
2632                     return JSEvaluateScript(CYGetJSContext(), CYJSString([entry objectAtIndex:1]), NULL, NULL, 0, NULL);
2633                 case 1:
2634                     return CYMakeFunctor(context, reinterpret_cast<void (*)()>([name cy$symbol]), CYPoolCString(pool, [entry objectAtIndex:1]));
2635                 case 2:
2636                     // XXX: this is horrendously inefficient
2637                     sig::Signature signature;
2638                     sig::Parse(pool, &signature, CYPoolCString(pool, [entry objectAtIndex:1]), &Structor_);
2639                     ffi_cif cif;
2640                     sig::sig_ffi_cif(pool, &sig::ObjectiveC, &signature, &cif);
2641                     return CYFromFFI(context, signature.elements[0].type, cif.rtype, [name cy$symbol]);
2642             }
2643         return NULL;
2644     } CYCatch
2645 }
2646
2647 bool stret(ffi_type *ffi_type) {
2648     return ffi_type->type == FFI_TYPE_STRUCT && (
2649         ffi_type->size > OBJC_MAX_STRUCT_BY_VALUE ||
2650         struct_forward_array[ffi_type->size] != 0
2651     );
2652 }
2653
2654 extern "C" {
2655     int *_NSGetArgc(void);
2656     char ***_NSGetArgv(void);
2657     int UIApplicationMain(int argc, char *argv[], NSString *principalClassName, NSString *delegateClassName);
2658 }
2659
2660 static JSValueRef System_print(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
2661     CYTry {
2662         NSLog(@"%s", CYCastCString(context, arguments[0]));
2663         return CYJSUndefined(context);
2664     } CYCatch
2665 }
2666
2667 JSValueRef CYSendMessage(apr_pool_t *pool, JSContextRef context, id self, SEL _cmd, size_t count, const JSValueRef arguments[], bool initialize, JSValueRef *exception) {
2668     const char *type;
2669
2670     Class _class(object_getClass(self));
2671     if (Method method = class_getInstanceMethod(_class, _cmd))
2672         type = method_getTypeEncoding(method);
2673     else {
2674         CYTry {
2675             CYPoolTry {
2676                 NSMethodSignature *method([self methodSignatureForSelector:_cmd]);
2677                 if (method == nil)
2678                     @throw [NSException exceptionWithName:NSInvalidArgumentException reason:[NSString stringWithFormat:@"unrecognized selector %s sent to object %p", sel_getName(_cmd), self] userInfo:nil];
2679                 type = CYPoolCString(pool, [method _typeString]);
2680             } CYPoolCatch(NULL)
2681         } CYCatch
2682     }
2683
2684     void *setup[2];
2685     setup[0] = &self;
2686     setup[1] = &_cmd;
2687
2688     sig::Signature signature;
2689     sig::Parse(pool, &signature, type, &Structor_);
2690
2691     ffi_cif cif;
2692     sig::sig_ffi_cif(pool, &sig::ObjectiveC, &signature, &cif);
2693
2694     void (*function)() = stret(cif.rtype) ? reinterpret_cast<void (*)()>(&objc_msgSend_stret) : reinterpret_cast<void (*)()>(&objc_msgSend);
2695     return CYCallFunction(pool, context, 2, setup, count, arguments, initialize, exception, &signature, &cif, function);
2696 }
2697
2698 static JSValueRef $objc_msgSend(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
2699     CYPool pool;
2700
2701     bool uninitialized;
2702
2703     id self;
2704     SEL _cmd;
2705
2706     CYTry {
2707         if (count < 2)
2708             @throw [NSException exceptionWithName:NSInvalidArgumentException reason:@"too few arguments to objc_msgSend" userInfo:nil];
2709
2710         if (JSValueIsObjectOfClass(context, arguments[0], Instance_)) {
2711             Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate((JSObjectRef) arguments[0])));
2712             self = internal->GetValue();
2713             uninitialized = internal->IsUninitialized();
2714             if (uninitialized)
2715                 internal->value_ = nil;
2716         } else {
2717             self = CYCastNSObject(pool, context, arguments[0]);
2718             uninitialized = false;
2719         }
2720
2721         if (self == nil)
2722             return CYJSNull(context);
2723
2724         _cmd = CYCastSEL(context, arguments[1]);
2725     } CYCatch
2726
2727     return CYSendMessage(pool, context, self, _cmd, count - 2, arguments + 2, uninitialized, exception);
2728 }
2729
2730 MSHook(void, CYDealloc, id self, SEL sel) {
2731     CYInternal *internal;
2732     object_getInstanceVariable(self, "cy$internal_", reinterpret_cast<void **>(&internal));
2733     if (internal != NULL)
2734         delete internal;
2735     _CYDealloc(self, sel);
2736 }
2737
2738 MSHook(void, objc_registerClassPair, Class _class) {
2739     Class super(class_getSuperclass(_class));
2740     if (super == NULL || class_getInstanceVariable(super, "cy$internal_") == NULL) {
2741         class_addIvar(_class, "cy$internal_", sizeof(CYInternal *), log2(sizeof(CYInternal *)), "^{CYInternal}");
2742         MSHookMessage(_class, @selector(dealloc), MSHake(CYDealloc));
2743     }
2744
2745     _objc_registerClassPair(_class);
2746 }
2747
2748 static JSValueRef objc_registerClassPair_(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
2749     CYTry {
2750         if (count != 1)
2751             @throw [NSException exceptionWithName:NSInvalidArgumentException reason:@"incorrect number of arguments to objc_registerClassPair" userInfo:nil];
2752         CYPool pool;
2753         Class _class(CYCastNSObject(pool, context, arguments[0]));
2754         $objc_registerClassPair(_class);
2755         return CYJSUndefined(context);
2756     } CYCatch
2757 }
2758
2759 static JSValueRef Selector_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
2760     JSValueRef setup[count + 2];
2761     setup[0] = _this;
2762     setup[1] = object;
2763     memcpy(setup + 2, arguments, sizeof(JSValueRef) * count);
2764     return $objc_msgSend(context, NULL, NULL, count + 2, setup, exception);
2765 }
2766
2767 static JSValueRef Message_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
2768     CYPool pool;
2769     Message_privateData *internal(reinterpret_cast<Message_privateData *>(JSObjectGetPrivate(object)));
2770
2771     // XXX: handle Instance::Uninitialized?
2772     id self(CYCastNSObject(pool, context, _this));
2773
2774     void *setup[2];
2775     setup[0] = &self;
2776     setup[1] = &internal->sel_;
2777
2778     return CYCallFunction(pool, context, 2, setup, count, arguments, false, exception, &internal->signature_, &internal->cif_, internal->GetValue());
2779 }
2780
2781 static JSValueRef Functor_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
2782     CYPool pool;
2783     Functor_privateData *internal(reinterpret_cast<Functor_privateData *>(JSObjectGetPrivate(object)));
2784     return CYCallFunction(pool, context, 0, NULL, count, arguments, false, exception, &internal->signature_, &internal->cif_, internal->GetValue());
2785 }
2786
2787 JSObjectRef Selector_new(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
2788     CYTry {
2789         if (count != 1)
2790             @throw [NSException exceptionWithName:NSInvalidArgumentException reason:@"incorrect number of arguments to Selector constructor" userInfo:nil];
2791         const char *name(CYCastCString(context, arguments[0]));
2792         return CYMakeSelector(context, sel_registerName(name));
2793     } CYCatch
2794 }
2795
2796 JSObjectRef Pointer_new(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
2797     CYTry {
2798         if (count != 2)
2799             @throw [NSException exceptionWithName:NSInvalidArgumentException reason:@"incorrect number of arguments to Functor constructor" userInfo:nil];
2800
2801         void *value(CYCastPointer<void *>(context, arguments[0]));
2802         const char *type(CYCastCString(context, arguments[1]));
2803
2804         CYPool pool;
2805
2806         sig::Signature signature;
2807         sig::Parse(pool, &signature, type, &Structor_);
2808
2809         return CYMakePointer(context, value, signature.elements[0].type, NULL, NULL);
2810     } CYCatch
2811 }
2812
2813 JSObjectRef CYMakeType(JSContextRef context, JSObjectRef object, const char *type) {
2814     Type_privateData *internal(new Type_privateData(NULL, type));
2815     return JSObjectMake(context, Type_, internal);
2816 }
2817
2818 JSObjectRef Type_new(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
2819     CYTry {
2820         if (count != 1)
2821             @throw [NSException exceptionWithName:NSInvalidArgumentException reason:@"incorrect number of arguments to Type constructor" userInfo:nil];
2822         const char *type(CYCastCString(context, arguments[0]));
2823         return CYMakeType(context, object, type);
2824     } CYCatch
2825 }
2826
2827 static JSValueRef Type_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
2828     CYTry {
2829         if (count != 1)
2830             @throw [NSException exceptionWithName:NSInvalidArgumentException reason:@"incorrect number of arguments to type cast function" userInfo:nil];
2831         Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
2832         sig::Type *type(internal->type_);
2833         ffi_type *ffi(internal->GetFFI());
2834         // XXX: alignment?
2835         uint8_t value[ffi->size];
2836         CYPool pool;
2837         CYPoolFFI(pool, context, type, ffi, value, arguments[0]);
2838         return CYFromFFI(context, type, ffi, value);
2839     } CYCatch
2840 }
2841
2842 static JSObjectRef Type_callAsConstructor(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
2843     CYTry {
2844         if (count > 1)
2845             @throw [NSException exceptionWithName:NSInvalidArgumentException reason:@"incorrect number of arguments to type cast function" userInfo:nil];
2846         Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
2847         size_t size(count == 0 ? 0 : CYCastDouble(context, arguments[0]));
2848         // XXX: alignment?
2849         void *value(malloc(internal->GetFFI()->size * size));
2850         return CYMakePointer(context, value, internal->type_, internal->ffi_, NULL);
2851     } CYCatch
2852 }
2853
2854 JSObjectRef Instance_new(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
2855     CYTry {
2856         if (count > 1)
2857             @throw [NSException exceptionWithName:NSInvalidArgumentException reason:@"incorrect number of arguments to Instance constructor" userInfo:nil];
2858         id self(count == 0 ? nil : CYCastPointer<id>(context, arguments[0]));
2859         return Instance::Make(context, self);
2860     } CYCatch
2861 }
2862
2863 JSObjectRef Functor_new(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
2864     CYTry {
2865         if (count != 2)
2866             @throw [NSException exceptionWithName:NSInvalidArgumentException reason:@"incorrect number of arguments to Functor constructor" userInfo:nil];
2867         const char *type(CYCastCString(context, arguments[1]));
2868         return CYMakeFunctor(context, arguments[0], type);
2869     } CYCatch
2870 }
2871
2872 JSValueRef CYValue_getProperty_value(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) {
2873     CYValue *internal(reinterpret_cast<CYValue *>(JSObjectGetPrivate(object)));
2874     return CYCastJSValue(context, reinterpret_cast<uintptr_t>(internal->value_));
2875 }
2876
2877 static JSValueRef CYValue_callAsFunction_$cya(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
2878     CYValue *internal(reinterpret_cast<CYValue *>(JSObjectGetPrivate(_this)));
2879     Type_privateData *typical(internal->GetType());
2880
2881     sig::Type *type;
2882     ffi_type *ffi;
2883
2884     if (typical == NULL) {
2885         type = NULL;
2886         ffi = NULL;
2887     } else {
2888         type = typical->type_;
2889         ffi = typical->ffi_;
2890     }
2891
2892     return CYMakePointer(context, &internal->value_, type, ffi, object);
2893 }
2894
2895 static JSValueRef CYValue_callAsFunction_valueOf(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
2896     CYValue *internal(reinterpret_cast<CYValue *>(JSObjectGetPrivate(_this)));
2897
2898     CYTry {
2899         return CYCastJSValue(context, reinterpret_cast<uintptr_t>(internal->value_));
2900     } CYCatch
2901 }
2902
2903 static JSValueRef CYValue_callAsFunction_toJSON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
2904     return CYValue_callAsFunction_valueOf(context, object, _this, count, arguments, exception);
2905 }
2906
2907 static JSValueRef CYValue_callAsFunction_toCYON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
2908     CYValue *internal(reinterpret_cast<CYValue *>(JSObjectGetPrivate(_this)));
2909     char string[32];
2910     sprintf(string, "%p", internal->value_);
2911
2912     CYTry {
2913         return CYCastJSValue(context, string);
2914     } CYCatch
2915 }
2916
2917 static JSValueRef Instance_getProperty_constructor(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) {
2918     Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(object)));
2919     return Instance::Make(context, object_getClass(internal->GetValue()));
2920 }
2921
2922 static JSValueRef Instance_getProperty_prototype(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) {
2923     Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(object)));
2924     id self(internal->GetValue());
2925     // XXX: this is a lame object_isClass
2926     if (class_getInstanceMethod(object_getClass(self), @selector(alloc)) == NULL)
2927         return CYJSUndefined(context);
2928     return Prototype::Make(context, self);
2929 }
2930
2931 static JSValueRef Instance_callAsFunction_toCYON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
2932     Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(_this)));
2933
2934     CYTry {
2935         CYPoolTry {
2936             return CYCastJSValue(context, CYJSString(CYPoolNSCYON(NULL, internal->GetValue())));
2937         } CYPoolCatch(NULL)
2938     } CYCatch
2939 }
2940
2941 static JSValueRef Instance_callAsFunction_toJSON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
2942     Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(_this)));
2943
2944     CYTry {
2945         CYPoolTry {
2946             NSString *key(count == 0 ? nil : CYCastNSString(NULL, CYJSString(context, arguments[0])));
2947             return CYCastJSValue(context, CYJSString([internal->GetValue() cy$toJSON:key]));
2948         } CYPoolCatch(NULL)
2949     } CYCatch
2950 }
2951
2952 static JSValueRef Instance_callAsFunction_toString(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
2953     Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(_this)));
2954
2955     CYTry {
2956         CYPoolTry {
2957             return CYCastJSValue(context, CYJSString([internal->GetValue() description]));
2958         } CYPoolCatch(NULL)
2959     } CYCatch
2960 }
2961
2962 static JSValueRef Selector_callAsFunction_toString(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
2963     Selector_privateData *internal(reinterpret_cast<Selector_privateData *>(JSObjectGetPrivate(_this)));
2964
2965     CYTry {
2966         return CYCastJSValue(context, sel_getName(internal->GetValue()));
2967     } CYCatch
2968 }
2969
2970 static JSValueRef Selector_callAsFunction_toJSON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
2971     return Selector_callAsFunction_toString(context, object, _this, count, arguments, exception);
2972 }
2973
2974 static JSValueRef Selector_callAsFunction_toCYON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
2975     Selector_privateData *internal(reinterpret_cast<Selector_privateData *>(JSObjectGetPrivate(_this)));
2976     const char *name(sel_getName(internal->GetValue()));
2977
2978     CYTry {
2979         CYPoolTry {
2980             return CYCastJSValue(context, CYJSString([NSString stringWithFormat:@"@selector(%s)", name]));
2981         } CYPoolCatch(NULL)
2982     } CYCatch
2983 }
2984
2985 static JSValueRef Selector_callAsFunction_type(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
2986     CYTry {
2987         if (count != 1)
2988             @throw [NSException exceptionWithName:NSInvalidArgumentException reason:@"incorrect number of arguments to Selector.type" userInfo:nil];
2989         CYPool pool;
2990         Selector_privateData *internal(reinterpret_cast<Selector_privateData *>(JSObjectGetPrivate(_this)));
2991         Class _class(CYCastNSObject(pool, context, arguments[0]));
2992         SEL sel(internal->GetValue());
2993         Method method(class_getInstanceMethod(_class, sel));
2994         const char *type(CYPoolTypeEncoding(pool, _class, sel, method));
2995         return type == NULL ? CYJSNull(context) : CYCastJSValue(context, CYJSString(type));
2996     } CYCatch
2997 }
2998
2999 static JSValueRef Type_callAsFunction_toString(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
3000     CYTry {
3001         Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
3002         CYPool pool;
3003         const char *type(sig::Unparse(pool, internal->type_));
3004         CYPoolTry {
3005             return CYCastJSValue(context, CYJSString(type));
3006         } CYPoolCatch(NULL)
3007     } CYCatch
3008 }
3009
3010 static JSValueRef Type_callAsFunction_toCYON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
3011     CYTry {
3012         Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
3013         CYPool pool;
3014         const char *type(sig::Unparse(pool, internal->type_));
3015         CYPoolTry {
3016             return CYCastJSValue(context, CYJSString([NSString stringWithFormat:@"new Type(%@)", [[NSString stringWithUTF8String:type] cy$toCYON]]));
3017         } CYPoolCatch(NULL)
3018     } CYCatch
3019 }
3020
3021 static JSValueRef Type_callAsFunction_toJSON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
3022     return Type_callAsFunction_toString(context, object, _this, count, arguments, exception);
3023 }
3024
3025 static JSStaticValue CYValue_staticValues[2] = {
3026     {"value", &CYValue_getProperty_value, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete},
3027     {NULL, NULL, NULL, 0}
3028 };
3029
3030 static JSStaticValue Pointer_staticValues[2] = {
3031     {"$cyi", &Pointer_getProperty_$cyi, &Pointer_setProperty_$cyi, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
3032     {NULL, NULL, NULL, 0}
3033 };
3034
3035 static JSStaticFunction Pointer_staticFunctions[4] = {
3036     {"toCYON", &CYValue_callAsFunction_toCYON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
3037     {"toJSON", &CYValue_callAsFunction_toJSON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
3038     {"valueOf", &CYValue_callAsFunction_valueOf, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
3039     {NULL, NULL, 0}
3040 };
3041
3042 static JSStaticFunction Struct_staticFunctions[2] = {
3043     {"$cya", &Struct_callAsFunction_$cya, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
3044     {NULL, NULL, 0}
3045 };
3046
3047 static JSStaticFunction Functor_staticFunctions[4] = {
3048     {"toCYON", &CYValue_callAsFunction_toCYON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
3049     {"toJSON", &CYValue_callAsFunction_toJSON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
3050     {"valueOf", &CYValue_callAsFunction_valueOf, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
3051     {NULL, NULL, 0}
3052 };
3053
3054 static JSStaticValue Instance_staticValues[4] = {
3055     {"constructor", &Instance_getProperty_constructor, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
3056     {"prototype", &Instance_getProperty_prototype, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
3057     {"value", &CYValue_getProperty_value, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
3058     {NULL, NULL, NULL, 0}
3059 };
3060
3061 static JSStaticFunction Instance_staticFunctions[5] = {
3062     {"$cya", &CYValue_callAsFunction_$cya, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
3063     {"toCYON", &Instance_callAsFunction_toCYON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
3064     {"toJSON", &Instance_callAsFunction_toJSON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
3065     {"toString", &Instance_callAsFunction_toString, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
3066     {NULL, NULL, 0}
3067 };
3068
3069 static JSStaticFunction Internal_staticFunctions[2] = {
3070     {"$cya", &Internal_callAsFunction_$cya, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
3071     {NULL, NULL, 0}
3072 };
3073
3074 static JSStaticFunction Selector_staticFunctions[5] = {
3075     {"toCYON", &Selector_callAsFunction_toCYON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
3076     {"toJSON", &Selector_callAsFunction_toJSON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
3077     {"toString", &Selector_callAsFunction_toString, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
3078     {"type", &Selector_callAsFunction_type, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
3079     {NULL, NULL, 0}
3080 };
3081
3082 static JSStaticFunction Type_staticFunctions[4] = {
3083     {"toCYON", &Type_callAsFunction_toCYON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
3084     {"toJSON", &Type_callAsFunction_toJSON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
3085     {"toString", &Type_callAsFunction_toString, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
3086     {NULL, NULL, 0}
3087 };
3088
3089 CYDriver::CYDriver(const std::string &filename) :
3090     state_(CYClear),
3091     data_(NULL),
3092     size_(0),
3093     file_(NULL),
3094     filename_(filename),
3095     source_(NULL)
3096 {
3097     ScannerInit();
3098 }
3099
3100 CYDriver::~CYDriver() {
3101     ScannerDestroy();
3102 }
3103
3104 void cy::parser::error(const cy::parser::location_type &location, const std::string &message) {
3105     CYDriver::Error error;
3106     error.location_ = location;
3107     error.message_ = message;
3108     driver.errors_.push_back(error);
3109 }
3110
3111 void CYSetArgs(int argc, const char *argv[]) {
3112     JSContextRef context(CYGetJSContext());
3113     JSValueRef args[argc];
3114     for (int i(0); i != argc; ++i)
3115         args[i] = CYCastJSValue(context, argv[i]);
3116     JSValueRef exception(NULL);
3117     JSObjectRef array(JSObjectMakeArray(context, argc, args, &exception));
3118     CYThrow(context, exception);
3119     CYSetProperty(context, System_, CYJSString("args"), array);
3120 }
3121
3122 JSObjectRef CYGetGlobalObject(JSContextRef context) {
3123     return JSContextGetGlobalObject(context);
3124 }
3125
3126 const char *CYExecute(apr_pool_t *pool, const char *code) { _pooled
3127     JSContextRef context(CYGetJSContext());
3128     JSValueRef exception(NULL), result;
3129
3130     try {
3131         result = JSEvaluateScript(context, CYJSString(code), NULL, NULL, 0, &exception);
3132     } catch (const char *error) {
3133         return error;
3134     }
3135
3136     if (exception != NULL) { error:
3137         result = exception;
3138         exception = NULL;
3139     }
3140
3141     if (JSValueIsUndefined(context, result))
3142         return NULL;
3143
3144     const char *json(CYPoolCCYON(pool, context, result, &exception));
3145     if (exception != NULL)
3146         goto error;
3147
3148     CYSetProperty(context, CYGetGlobalObject(context), Result_, result);
3149     return json;
3150 }
3151
3152 bool CYRecvAll_(int socket, uint8_t *data, size_t size) {
3153     while (size != 0) if (size_t writ = _syscall(recv(socket, data, size, 0))) {
3154         data += writ;
3155         size -= writ;
3156     } else
3157         return false;
3158     return true;
3159 }
3160
3161 bool CYSendAll_(int socket, const uint8_t *data, size_t size) {
3162     while (size != 0) if (size_t writ = _syscall(send(socket, data, size, 0))) {
3163         data += writ;
3164         size -= writ;
3165     } else
3166         return false;
3167     return true;
3168 }
3169
3170 apr_pool_t *Pool_;
3171
3172 struct CYExecute_ {
3173     apr_pool_t *pool_;
3174     const char * volatile data_;
3175 };
3176
3177 // XXX: this is "tre lame"
3178 @interface CYClient_ : NSObject {
3179 }
3180
3181 - (void) execute:(NSValue *)value;
3182
3183 @end
3184
3185 @implementation CYClient_
3186
3187 - (void) execute:(NSValue *)value {
3188     CYExecute_ *execute(reinterpret_cast<CYExecute_ *>([value pointerValue]));
3189     const char *data(execute->data_);
3190     execute->data_ = NULL;
3191     execute->data_ = CYExecute(execute->pool_, data);
3192 }
3193
3194 @end
3195
3196 struct CYClient :
3197     CYData
3198 {
3199     int socket_;
3200     apr_thread_t *thread_;
3201
3202     CYClient(int socket) :
3203         socket_(socket)
3204     {
3205     }
3206
3207     ~CYClient() {
3208         _syscall(close(socket_));
3209     }
3210
3211     void Handle() { _pooled
3212         CYClient_ *client = [[[CYClient_ alloc] init] autorelease];
3213
3214         for (;;) {
3215             size_t size;
3216             if (!CYRecvAll(socket_, &size, sizeof(size)))
3217                 return;
3218
3219             CYPool pool;
3220             char *data(new(pool) char[size + 1]);
3221             if (!CYRecvAll(socket_, data, size))
3222                 return;
3223             data[size] = '\0';
3224
3225             CYDriver driver("");
3226             cy::parser parser(driver);
3227
3228             driver.data_ = data;
3229             driver.size_ = size;
3230
3231             const char *json;
3232             if (parser.parse() != 0 || !driver.errors_.empty()) {
3233                 json = NULL;
3234                 size = _not(size_t);
3235             } else {
3236                 std::ostringstream str;
3237                 driver.source_->Show(str);
3238                 std::string code(str.str());
3239                 CYExecute_ execute = {pool, code.c_str()};
3240                 [client performSelectorOnMainThread:@selector(execute:) withObject:[NSValue valueWithPointer:&execute] waitUntilDone:YES];
3241                 json = execute.data_;
3242                 size = json == NULL ? _not(size_t) : strlen(json);
3243             }
3244
3245             if (!CYSendAll(socket_, &size, sizeof(size)))
3246                 return;
3247             if (json != NULL)
3248                 if (!CYSendAll(socket_, json, size))
3249                     return;
3250         }
3251     }
3252 };
3253
3254 static void * APR_THREAD_FUNC OnClient(apr_thread_t *thread, void *data) {
3255     CYClient *client(reinterpret_cast<CYClient *>(data));
3256     client->Handle();
3257     delete client;
3258     return NULL;
3259 }
3260
3261 extern "C" void CYHandleClient(apr_pool_t *pool, int socket) {
3262     CYClient *client(new(pool) CYClient(socket));
3263     apr_threadattr_t *attr;
3264     _aprcall(apr_threadattr_create(&attr, client->pool_));
3265     _aprcall(apr_thread_create(&client->thread_, attr, &OnClient, client, client->pool_));
3266 }
3267
3268 MSInitialize { _pooled
3269     _aprcall(apr_initialize());
3270     _aprcall(apr_pool_create(&Pool_, NULL));
3271
3272     Type_privateData::Object = new(Pool_) Type_privateData(Pool_, "@");
3273     Type_privateData::Selector = new(Pool_) Type_privateData(Pool_, ":");
3274
3275     Bridge_ = [[NSMutableArray arrayWithContentsOfFile:@"/usr/lib/libcycript.plist"] retain];
3276
3277     NSArray_ = objc_getClass("NSArray");
3278     NSCFBoolean_ = objc_getClass("NSCFBoolean");
3279     NSCFType_ = objc_getClass("NSCFType");
3280     NSMessageBuilder_ = objc_getClass("NSMessageBuilder");
3281     NSZombie_ = objc_getClass("_NSZombie_");
3282     Object_ = objc_getClass("Object");
3283 }
3284
3285 JSGlobalContextRef CYGetJSContext() {
3286     if (Context_ == NULL) {
3287         JSClassDefinition definition;
3288
3289         definition = kJSClassDefinitionEmpty;
3290         definition.className = "Functor";
3291         definition.staticFunctions = Functor_staticFunctions;
3292         definition.callAsFunction = &Functor_callAsFunction;
3293         definition.finalize = &Finalize;
3294         Functor_ = JSClassCreate(&definition);
3295
3296         definition = kJSClassDefinitionEmpty;
3297         definition.className = "Instance";
3298         definition.staticValues = Instance_staticValues;
3299         definition.staticFunctions = Instance_staticFunctions;
3300         definition.hasProperty = &Instance_hasProperty;
3301         definition.getProperty = &Instance_getProperty;
3302         definition.setProperty = &Instance_setProperty;
3303         definition.deleteProperty = &Instance_deleteProperty;
3304         definition.getPropertyNames = &Instance_getPropertyNames;
3305         definition.callAsConstructor = &Instance_callAsConstructor;
3306         definition.finalize = &Finalize;
3307         Instance_ = JSClassCreate(&definition);
3308
3309         definition = kJSClassDefinitionEmpty;
3310         definition.className = "Internal";
3311         definition.staticFunctions = Internal_staticFunctions;
3312         definition.hasProperty = &Internal_hasProperty;
3313         definition.getProperty = &Internal_getProperty;
3314         definition.setProperty = &Internal_setProperty;
3315         definition.getPropertyNames = &Internal_getPropertyNames;
3316         definition.finalize = &Finalize;
3317         Internal_ = JSClassCreate(&definition);
3318
3319         definition = kJSClassDefinitionEmpty;
3320         definition.className = "Message";
3321         definition.staticFunctions = Functor_staticFunctions;
3322         definition.callAsFunction = &Message_callAsFunction;
3323         definition.finalize = &Finalize;
3324         Message_ = JSClassCreate(&definition);
3325
3326         definition = kJSClassDefinitionEmpty;
3327         definition.className = "Pointer";
3328         definition.staticValues = Pointer_staticValues;
3329         definition.staticFunctions = Pointer_staticFunctions;
3330         definition.getProperty = &Pointer_getProperty;
3331         definition.setProperty = &Pointer_setProperty;
3332         definition.finalize = &Finalize;
3333         Pointer_ = JSClassCreate(&definition);
3334
3335         definition = kJSClassDefinitionEmpty;
3336         definition.className = "Prototype";
3337         definition.hasProperty = &Prototype_hasProperty;
3338         definition.getProperty = &Prototype_getProperty;
3339         definition.setProperty = &Prototype_setProperty;
3340 #if !__OBJC2__
3341         definition.deleteProperty = &Prototype_deleteProperty;
3342 #endif
3343         definition.getPropertyNames = &Prototype_getPropertyNames;
3344         definition.finalize = &Finalize;
3345         Prototype_ = JSClassCreate(&definition);
3346
3347         definition = kJSClassDefinitionEmpty;
3348         definition.className = "Selector";
3349         definition.staticValues = CYValue_staticValues;
3350         definition.staticFunctions = Selector_staticFunctions;
3351         definition.callAsFunction = &Selector_callAsFunction;
3352         definition.finalize = &Finalize;
3353         Selector_ = JSClassCreate(&definition);
3354
3355         definition = kJSClassDefinitionEmpty;
3356         definition.className = "Struct";
3357         definition.staticFunctions = Struct_staticFunctions;
3358         definition.getProperty = &Struct_getProperty;
3359         definition.setProperty = &Struct_setProperty;
3360         definition.getPropertyNames = &Struct_getPropertyNames;
3361         definition.finalize = &Finalize;
3362         Struct_ = JSClassCreate(&definition);
3363
3364         definition = kJSClassDefinitionEmpty;
3365         definition.className = "Type";
3366         definition.staticFunctions = Type_staticFunctions;
3367         //definition.getProperty = &Type_getProperty;
3368         definition.callAsFunction = &Type_callAsFunction;
3369         definition.callAsConstructor = &Type_callAsConstructor;
3370         definition.finalize = &Finalize;
3371         Type_ = JSClassCreate(&definition);
3372
3373         definition = kJSClassDefinitionEmpty;
3374         definition.className = "Runtime";
3375         definition.getProperty = &Runtime_getProperty;
3376         Runtime_ = JSClassCreate(&definition);
3377
3378         definition = kJSClassDefinitionEmpty;
3379         definition.className = "ObjectiveC::Classes";
3380         definition.getProperty = &ObjectiveC_Classes_getProperty;
3381         definition.getPropertyNames = &ObjectiveC_Classes_getPropertyNames;
3382         ObjectiveC_Classes_ = JSClassCreate(&definition);
3383
3384         definition = kJSClassDefinitionEmpty;
3385         definition.className = "ObjectiveC::Images";
3386         definition.getProperty = &ObjectiveC_Images_getProperty;
3387         definition.getPropertyNames = &ObjectiveC_Images_getPropertyNames;
3388         ObjectiveC_Images_ = JSClassCreate(&definition);
3389
3390         definition = kJSClassDefinitionEmpty;
3391         definition.className = "ObjectiveC::Image::Classes";
3392         definition.getProperty = &ObjectiveC_Image_Classes_getProperty;
3393         definition.getPropertyNames = &ObjectiveC_Image_Classes_getPropertyNames;
3394         definition.finalize = &Finalize;
3395         ObjectiveC_Image_Classes_ = JSClassCreate(&definition);
3396
3397         definition = kJSClassDefinitionEmpty;
3398         definition.className = "ObjectiveC::Protocols";
3399         definition.getProperty = &ObjectiveC_Protocols_getProperty;
3400         definition.getPropertyNames = &ObjectiveC_Protocols_getPropertyNames;
3401         ObjectiveC_Protocols_ = JSClassCreate(&definition);
3402
3403         definition = kJSClassDefinitionEmpty;
3404         //definition.getProperty = &Global_getProperty;
3405         JSClassRef Global(JSClassCreate(&definition));
3406
3407         JSGlobalContextRef context(JSGlobalContextCreate(Global));
3408         Context_ = context;
3409
3410         JSObjectRef global(CYGetGlobalObject(context));
3411
3412         JSObjectSetPrototype(context, global, JSObjectMake(context, Runtime_, NULL));
3413         ObjectiveC_ = JSObjectMake(context, NULL, NULL);
3414         CYSetProperty(context, global, CYJSString("ObjectiveC"), ObjectiveC_);
3415
3416         CYSetProperty(context, ObjectiveC_, CYJSString("classes"), JSObjectMake(context, ObjectiveC_Classes_, NULL));
3417         CYSetProperty(context, ObjectiveC_, CYJSString("images"), JSObjectMake(context, ObjectiveC_Images_, NULL));
3418         CYSetProperty(context, ObjectiveC_, CYJSString("protocols"), JSObjectMake(context, ObjectiveC_Protocols_, NULL));
3419
3420         Array_ = CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Array")));
3421         Function_ = CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Function")));
3422
3423         length_ = JSStringCreateWithUTF8CString("length");
3424         message_ = JSStringCreateWithUTF8CString("message");
3425         name_ = JSStringCreateWithUTF8CString("name");
3426         prototype_ = JSStringCreateWithUTF8CString("prototype");
3427         toCYON_ = JSStringCreateWithUTF8CString("toCYON");
3428         toJSON_ = JSStringCreateWithUTF8CString("toJSON");
3429
3430         Array_prototype_ = CYCastJSObject(context, CYGetProperty(context, Array_, prototype_));
3431         Array_pop_ = CYCastJSObject(context, CYGetProperty(context, Array_prototype_, CYJSString("pop")));
3432         Array_push_ = CYCastJSObject(context, CYGetProperty(context, Array_prototype_, CYJSString("push")));
3433         Array_splice_ = CYCastJSObject(context, CYGetProperty(context, Array_prototype_, CYJSString("splice")));
3434
3435         JSObjectRef Functor(JSObjectMakeConstructor(context, Functor_, &Functor_new));
3436         JSObjectRef Message(JSObjectMakeConstructor(context, Message_, NULL));
3437         JSObjectRef Selector(JSObjectMakeConstructor(context, Selector_, &Selector_new));
3438
3439         JSValueRef function(CYGetProperty(context, Function_, prototype_));
3440         JSObjectSetPrototype(context, (JSObjectRef) CYGetProperty(context, Message, prototype_), function);
3441         JSObjectSetPrototype(context, (JSObjectRef) CYGetProperty(context, Functor, prototype_), function);
3442         JSObjectSetPrototype(context, (JSObjectRef) CYGetProperty(context, Selector, prototype_), function);
3443
3444         CYSetProperty(context, global, CYJSString("Functor"), Functor);
3445         CYSetProperty(context, global, CYJSString("Instance"), JSObjectMakeConstructor(context, Instance_, &Instance_new));
3446         CYSetProperty(context, global, CYJSString("Pointer"), JSObjectMakeConstructor(context, Pointer_, &Pointer_new));
3447         CYSetProperty(context, global, CYJSString("Selector"), Selector);
3448         CYSetProperty(context, global, CYJSString("Type"), JSObjectMakeConstructor(context, Type_, &Type_new));
3449
3450         MSHookFunction(&objc_registerClassPair, MSHake(objc_registerClassPair));
3451
3452         class_addMethod(NSCFType_, @selector(cy$toJSON:), reinterpret_cast<IMP>(&NSCFType$cy$toJSON), "@12@0:4@8");
3453
3454         CYSetProperty(context, global, CYJSString("objc_registerClassPair"), JSObjectMakeFunctionWithCallback(context, CYJSString("objc_registerClassPair"), &objc_registerClassPair_));
3455         CYSetProperty(context, global, CYJSString("objc_msgSend"), JSObjectMakeFunctionWithCallback(context, CYJSString("objc_msgSend"), &$objc_msgSend));
3456
3457         System_ = JSObjectMake(context, NULL, NULL);
3458         CYSetProperty(context, global, CYJSString("system"), System_);
3459         CYSetProperty(context, System_, CYJSString("args"), CYJSNull(context));
3460         //CYSetProperty(context, System_, CYJSString("global"), global);
3461
3462         CYSetProperty(context, System_, CYJSString("print"), JSObjectMakeFunctionWithCallback(context, CYJSString("print"), &System_print));
3463
3464         Result_ = JSStringCreateWithUTF8CString("_");
3465     }
3466
3467     return Context_;
3468 }