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 <unistd.h>
  52
  53 #include <CoreFoundation/CoreFoundation.h>
  54 #include <CoreFoundation/CFLogUtilities.h>
  55
  56 #include <WebKit/WebScriptObject.h>
  57
  58 #include <sys/types.h>
  59 #include <sys/socket.h>
  60 #include <netinet/in.h>
  61 #include <sys/un.h>
  62
  63 #include <sys/mman.h>
  64
  65 #include <iostream>
  66 #include <ext/stdio_filebuf.h>
  67 #include <set>
  68 #include <map>
  69
  70 #include <sstream>
  71 #include <cmath>
  72
  73 #include "Parser.hpp"
  74 #include "Cycript.tab.hh"
  75
  76 #include <fcntl.h>
  77
  78 #include <apr-1/apr_thread_proc.h>
  79
  80 #undef _assert
  81 #undef _trace
  82
  83 #define _assert(test) do { \
  84     if (!(test)) \
  85         @throw [NSException exceptionWithName:NSInternalInconsistencyException reason:[NSString stringWithFormat:@"_assert(%s):%s(%u):%s", #test, __FILE__, __LINE__, __FUNCTION__] userInfo:nil]; \
  86 } while (false)
  87
  88 #define _trace() do { \
  89     CFLog(kCFLogLevelNotice, CFSTR("_trace():%u"), __LINE__); \
  90 } while (false)
  91
  92 #define CYPoolTry { \
  93     id _saved(nil); \
  94     NSAutoreleasePool *_pool([[NSAutoreleasePool alloc] init]); \
  95     @try
  96 #define CYPoolCatch(value) \
  97     @catch (NSException *error) { \
  98         _saved = [error retain]; \
  99         @throw; \
 100         return value; \
 101     } @finally { \
 102         [_pool release]; \
 103         if (_saved != nil) \
 104             [_saved autorelease]; \
 105     } \
 106 }
 107
 108 static JSGlobalContextRef Context_;
 109 static JSObjectRef System_;
 110
 111 static JSClassRef Functor_;
 112 static JSClassRef Instance_;
 113 static JSClassRef Pointer_;
 114 static JSClassRef Runtime_;
 115 static JSClassRef Selector_;
 116 static JSClassRef Struct_;
 117 static JSClassRef Type_;
 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 toCYON_;
 128 static JSStringRef toJSON_;
 129
 130 static Class NSCFBoolean_;
 131
 132 static NSArray *Bridge_;
 133
 134 struct CYData {
 135     apr_pool_t *pool_;
 136
 137     virtual ~CYData() {
 138     }
 139
 140     static void *operator new(size_t size, apr_pool_t *pool) {
 141         void *data(apr_palloc(pool, size));
 142         reinterpret_cast<CYData *>(data)->pool_ = pool;
 143         return data;
 144     }
 145
 146     static void *operator new(size_t size) {
 147         apr_pool_t *pool;
 148         apr_pool_create(&pool, NULL);
 149         return operator new(size, pool);
 150     }
 151
 152     static void operator delete(void *data) {
 153         apr_pool_destroy(reinterpret_cast<CYData *>(data)->pool_);
 154     }
 155
 156     static void Finalize(JSObjectRef object) {
 157         delete reinterpret_cast<CYData *>(JSObjectGetPrivate(object));
 158     }
 159 };
 160
 161 struct CYValue :
 162     CYData
 163 {
 164     void *value_;
 165
 166     CYValue() {
 167     }
 168
 169     CYValue(void *value) :
 170         value_(value)
 171     {
 172     }
 173 };
 174
 175 struct Selector_privateData :
 176     CYValue
 177 {
 178     Selector_privateData(SEL value) :
 179         CYValue(value)
 180     {
 181     }
 182
 183     SEL GetValue() const {
 184         return reinterpret_cast<SEL>(value_);
 185     }
 186 };
 187
 188 struct Instance :
 189     CYValue
 190 {
 191     enum Flags {
 192         None          = 0,
 193         Transient     = (1 << 0),
 194         Uninitialized = (1 << 1),
 195     };
 196
 197     Flags flags_;
 198
 199     Instance(id value, Flags flags) :
 200         CYValue(value),
 201         flags_(flags)
 202     {
 203     }
 204
 205     virtual ~Instance() {
 206         if ((flags_ & Transient) == 0)
 207             // XXX: does this handle background threads correctly?
 208             [GetValue() performSelector:@selector(release) withObject:nil afterDelay:0];
 209     }
 210
 211     static JSObjectRef Make(JSContextRef context, id object, Flags flags) {
 212         return JSObjectMake(context, Instance_, new Instance(object, flags));
 213     }
 214
 215     id GetValue() const {
 216         return reinterpret_cast<id>(value_);
 217     }
 218
 219     bool IsUninitialized() const {
 220         return (flags_ & Uninitialized) != 0;
 221     }
 222 };
 223
 224 namespace sig {
 225
 226 void Copy(apr_pool_t *pool, Type &lhs, Type &rhs);
 227
 228 void Copy(apr_pool_t *pool, Element &lhs, Element &rhs) {
 229     lhs.name = apr_pstrdup(pool, rhs.name);
 230     if (rhs.type == NULL)
 231         lhs.type = NULL;
 232     else {
 233         lhs.type = new(pool) Type;
 234         Copy(pool, *lhs.type, *rhs.type);
 235     }
 236     lhs.offset = rhs.offset;
 237 }
 238
 239 void Copy(apr_pool_t *pool, Signature &lhs, Signature &rhs) {
 240     size_t count(rhs.count);
 241     lhs.count = count;
 242     lhs.elements = new(pool) Element[count];
 243     for (size_t index(0); index != count; ++index)
 244         Copy(pool, lhs.elements[index], rhs.elements[index]);
 245 }
 246
 247 void Copy(apr_pool_t *pool, Type &lhs, Type &rhs) {
 248     lhs.primitive = rhs.primitive;
 249     lhs.name = apr_pstrdup(pool, rhs.name);
 250     lhs.flags = rhs.flags;
 251
 252     if (sig::IsAggregate(rhs.primitive))
 253         Copy(pool, lhs.data.signature, rhs.data.signature);
 254     else {
 255         if (rhs.data.data.type != NULL) {
 256             lhs.data.data.type = new(pool) Type;
 257             Copy(pool, *lhs.data.data.type, *rhs.data.data.type);
 258         }
 259
 260         lhs.data.data.size = rhs.data.data.size;
 261     }
 262 }
 263
 264 void Copy(apr_pool_t *pool, ffi_type &lhs, ffi_type &rhs) {
 265     lhs.size = rhs.size;
 266     lhs.alignment = rhs.alignment;
 267     lhs.type = rhs.type;
 268     if (rhs.elements == NULL)
 269         lhs.elements = NULL;
 270     else {
 271         size_t count(0);
 272         while (rhs.elements[count] != NULL)
 273             ++count;
 274
 275         lhs.elements = new(pool) ffi_type *[count + 1];
 276         lhs.elements[count] = NULL;
 277
 278         for (size_t index(0); index != count; ++index) {
 279             // XXX: if these are libffi native then you can just take them
 280             ffi_type *ffi(new(pool) ffi_type);
 281             lhs.elements[index] = ffi;
 282             sig::Copy(pool, *ffi, *rhs.elements[index]);
 283         }
 284     }
 285 }
 286
 287 }
 288
 289 struct CStringMapLess :
 290     std::binary_function<const char *, const char *, bool>
 291 {
 292     _finline bool operator ()(const char *lhs, const char *rhs) const {
 293         return strcmp(lhs, rhs) < 0;
 294     }
 295 };
 296
 297 void Structor_(apr_pool_t *pool, const char *name, const char *types, sig::Type *&type) {
 298     if (name == NULL)
 299         return;
 300
 301     CYPoolTry {
 302         if (NSMutableArray *entry = [[Bridge_ objectAtIndex:2] objectForKey:[NSString stringWithUTF8String:name]])
 303             switch ([[entry objectAtIndex:0] intValue]) {
 304                 case 0: {
 305                     sig::Parse(pool, &type->data.signature, [[entry objectAtIndex:1] UTF8String], &Structor_);
 306                 } break;
 307
 308                 case 1: {
 309                     sig::Signature signature;
 310                     sig::Parse(pool, &signature, [[entry objectAtIndex:1] UTF8String], &Structor_);
 311                     type = signature.elements[0].type;
 312                 } break;
 313             }
 314     } CYPoolCatch()
 315 }
 316
 317 struct Type_privateData :
 318     CYData
 319 {
 320     ffi_type *ffi_;
 321     sig::Type *type_;
 322
 323     void Set(sig::Type *type) {
 324         type_ = new(pool_) sig::Type;
 325         sig::Copy(pool_, *type_, *type);
 326     }
 327
 328     Type_privateData(const char *type) :
 329         ffi_(NULL)
 330     {
 331         sig::Signature signature;
 332         sig::Parse(pool_, &signature, type, &Structor_);
 333         type_ = signature.elements[0].type;
 334     }
 335
 336     Type_privateData(sig::Type *type) :
 337         ffi_(NULL)
 338     {
 339         if (type != NULL)
 340             Set(type);
 341     }
 342
 343     Type_privateData(sig::Type *type, ffi_type *ffi) {
 344         ffi_ = new(pool_) ffi_type;
 345         sig::Copy(pool_, *ffi_, *ffi);
 346         Set(type);
 347     }
 348
 349     ffi_type *GetFFI() {
 350         if (ffi_ == NULL) {
 351             ffi_ = new(pool_) ffi_type;
 352
 353             sig::Element element;
 354             element.name = NULL;
 355             element.type = type_;
 356             element.offset = 0;
 357
 358             sig::Signature signature;
 359             signature.elements = &element;
 360             signature.count = 1;
 361
 362             ffi_cif cif;
 363             sig::sig_ffi_cif(pool_, &sig::ObjectiveC, &signature, &cif);
 364             *ffi_ = *cif.rtype;
 365         }
 366
 367         return ffi_;
 368     }
 369 };
 370
 371 struct Pointer :
 372     CYValue
 373 {
 374     JSObjectRef owner_;
 375     Type_privateData *type_;
 376
 377     Pointer(void *value, sig::Type *type, JSObjectRef owner) :
 378         CYValue(value),
 379         owner_(owner),
 380         type_(new(pool_) Type_privateData(type))
 381     {
 382     }
 383 };
 384
 385 struct Struct_privateData :
 386     CYValue
 387 {
 388     JSObjectRef owner_;
 389     Type_privateData *type_;
 390
 391     Struct_privateData(JSObjectRef owner) :
 392         owner_(owner)
 393     {
 394     }
 395 };
 396
 397 typedef std::map<const char *, Type_privateData *, CStringMapLess> TypeMap;
 398 static TypeMap Types_;
 399
 400 JSObjectRef CYMakeStruct(JSContextRef context, void *data, sig::Type *type, ffi_type *ffi, JSObjectRef owner) {
 401     Struct_privateData *internal(new Struct_privateData(owner));
 402     apr_pool_t *pool(internal->pool_);
 403     Type_privateData *typical(new(pool) Type_privateData(type, ffi));
 404     internal->type_ = typical;
 405
 406     if (owner != NULL)
 407         internal->value_ = data;
 408     else {
 409         size_t size(typical->GetFFI()->size);
 410         void *copy(apr_palloc(internal->pool_, size));
 411         memcpy(copy, data, size);
 412         internal->value_ = copy;
 413     }
 414
 415     return JSObjectMake(context, Struct_, internal);
 416 }
 417
 418 struct Functor_privateData :
 419     CYValue
 420 {
 421     sig::Signature signature_;
 422     ffi_cif cif_;
 423
 424     Functor_privateData(const char *type, void (*value)()) :
 425         CYValue(reinterpret_cast<void *>(value))
 426     {
 427         sig::Parse(pool_, &signature_, type, &Structor_);
 428         sig::sig_ffi_cif(pool_, &sig::ObjectiveC, &signature_, &cif_);
 429     }
 430 };
 431
 432 struct ffoData :
 433     Functor_privateData
 434 {
 435     JSContextRef context_;
 436     JSObjectRef function_;
 437
 438     ffoData(const char *type) :
 439         Functor_privateData(type, NULL)
 440     {
 441     }
 442 };
 443
 444 JSObjectRef CYMakeInstance(JSContextRef context, id object, bool transient) {
 445     Instance::Flags flags;
 446
 447     if (transient)
 448         flags = Instance::Transient;
 449     else {
 450         flags = Instance::None;
 451         object = [object retain];
 452     }
 453
 454     return Instance::Make(context, object, flags);
 455 }
 456
 457 const char *CYPoolCString(apr_pool_t *pool, NSString *value) {
 458     if (pool == NULL)
 459         return [value UTF8String];
 460     else {
 461         size_t size([value maximumLengthOfBytesUsingEncoding:NSUTF8StringEncoding] + 1);
 462         char *string(new(pool) char[size]);
 463         if (![value getCString:string maxLength:size encoding:NSUTF8StringEncoding])
 464             @throw [NSException exceptionWithName:NSInternalInconsistencyException reason:@"[NSString getCString:maxLength:encoding:] == NO" userInfo:nil];
 465         return string;
 466     }
 467 }
 468
 469 JSValueRef CYCastJSValue(JSContextRef context, bool value) {
 470     return JSValueMakeBoolean(context, value);
 471 }
 472
 473 JSValueRef CYCastJSValue(JSContextRef context, double value) {
 474     return JSValueMakeNumber(context, value);
 475 }
 476
 477 #define CYCastJSValue_(Type_) \
 478     JSValueRef CYCastJSValue(JSContextRef context, Type_ value) { \
 479         return JSValueMakeNumber(context, static_cast<double>(value)); \
 480     }
 481
 482 CYCastJSValue_(int)
 483 CYCastJSValue_(unsigned int)
 484 CYCastJSValue_(long int)
 485 CYCastJSValue_(long unsigned int)
 486 CYCastJSValue_(long long int)
 487 CYCastJSValue_(long long unsigned int)
 488
 489 JSValueRef CYJSUndefined(JSContextRef context) {
 490     return JSValueMakeUndefined(context);
 491 }
 492
 493 bool CYGetIndex(const char *value, ssize_t &index) {
 494     if (value[0] != '0') {
 495         char *end;
 496         index = strtol(value, &end, 10);
 497         if (value + strlen(value) == end)
 498             return true;
 499     } else if (value[1] == '\0') {
 500         index = 0;
 501         return true;
 502     }
 503
 504     return false;
 505 }
 506
 507 bool CYGetIndex(apr_pool_t *pool, NSString *value, ssize_t &index) {
 508     return CYGetIndex(CYPoolCString(pool, value), index);
 509 }
 510
 511 @interface NSMethodSignature (Cycript)
 512 - (NSString *) _typeString;
 513 @end
 514
 515 @interface NSObject (Cycript)
 516
 517 - (JSValueRef) cy$JSValueInContext:(JSContextRef)context;
 518 - (JSType) cy$JSType;
 519
 520 - (NSObject *) cy$toJSON:(NSString *)key;
 521 - (NSString *) cy$toCYON;
 522 - (NSString *) cy$toKey;
 523
 524 - (NSObject *) cy$getProperty:(NSString *)name;
 525 - (bool) cy$setProperty:(NSString *)name to:(NSObject *)value;
 526 - (bool) cy$deleteProperty:(NSString *)name;
 527
 528 @end
 529
 530 @protocol Cycript
 531 - (JSValueRef) cy$JSValueInContext:(JSContextRef)context;
 532 @end
 533
 534 @interface NSString (Cycript)
 535 - (void *) cy$symbol;
 536 @end
 537
 538 struct PropertyAttributes {
 539     CYPool pool_;
 540
 541     const char *name;
 542
 543     const char *variable;
 544
 545     const char *getter_;
 546     const char *setter_;
 547
 548     bool readonly;
 549     bool copy;
 550     bool retain;
 551     bool nonatomic;
 552     bool dynamic;
 553     bool weak;
 554     bool garbage;
 555
 556     PropertyAttributes(objc_property_t property) :
 557         variable(NULL),
 558         getter_(NULL),
 559         setter_(NULL),
 560         readonly(false),
 561         copy(false),
 562         retain(false),
 563         nonatomic(false),
 564         dynamic(false),
 565         weak(false),
 566         garbage(false)
 567     {
 568         name = property_getName(property);
 569         const char *attributes(property_getAttributes(property));
 570
 571         for (char *state, *token(apr_strtok(apr_pstrdup(pool_, attributes), ",", &state)); token != NULL; token = apr_strtok(NULL, ",", &state)) {
 572             switch (*token) {
 573                 case 'R': readonly = true; break;
 574                 case 'C': copy = true; break;
 575                 case '&': retain = true; break;
 576                 case 'N': nonatomic = true; break;
 577                 case 'G': getter_ = token + 1; break;
 578                 case 'S': setter_ = token + 1; break;
 579                 case 'V': variable = token + 1; break;
 580             }
 581         }
 582
 583         /*if (variable == NULL) {
 584             variable = property_getName(property);
 585             size_t size(strlen(variable));
 586             char *name(new(pool_) char[size + 2]);
 587             name[0] = '_';
 588             memcpy(name + 1, variable, size);
 589             name[size + 1] = '\0';
 590             variable = name;
 591         }*/
 592     }
 593
 594     const char *Getter() {
 595         if (getter_ == NULL)
 596             getter_ = apr_pstrdup(pool_, name);
 597         return getter_;
 598     }
 599
 600     const char *Setter() {
 601         if (setter_ == NULL && !readonly) {
 602             size_t length(strlen(name));
 603
 604             char *temp(new(pool_) char[length + 5]);
 605             temp[0] = 's';
 606             temp[1] = 'e';
 607             temp[2] = 't';
 608
 609             if (length != 0) {
 610                 temp[3] = toupper(name[0]);
 611                 memcpy(temp + 4, name + 1, length - 1);
 612             }
 613
 614             temp[length + 3] = ':';
 615             temp[length + 4] = '\0';
 616             setter_ = temp;
 617         }
 618
 619         return setter_;
 620     }
 621
 622 };
 623
 624 @implementation NSObject (Cycript)
 625
 626 - (JSValueRef) cy$JSValueInContext:(JSContextRef)context {
 627     return CYMakeInstance(context, self, false);
 628 }
 629
 630 - (JSType) cy$JSType {
 631     return kJSTypeObject;
 632 }
 633
 634 - (NSObject *) cy$toJSON:(NSString *)key {
 635     return [self description];
 636 }
 637
 638 - (NSString *) cy$toCYON {
 639     return [[self cy$toJSON:@""] cy$toCYON];
 640 }
 641
 642 - (NSString *) cy$toKey {
 643     return [self cy$toCYON];
 644 }
 645
 646 - (NSObject *) cy$getProperty:(NSString *)name {
 647     /*if (![name isEqualToString:@"prototype"])
 648         NSLog(@"get:%@", name);*/
 649     return nil;
 650 }
 651
 652 - (bool) cy$setProperty:(NSString *)name to:(NSObject *)value {
 653     //NSLog(@"set:%@", name);
 654     return false;
 655 }
 656
 657 - (bool) cy$deleteProperty:(NSString *)name {
 658     //NSLog(@"delete:%@", name);
 659     return false;
 660 }
 661
 662 @end
 663
 664 @implementation WebUndefined (Cycript)
 665
 666 - (JSType) cy$JSType {
 667     return kJSTypeUndefined;
 668 }
 669
 670 - (NSObject *) cy$toJSON:(NSString *)key {
 671     return self;
 672 }
 673
 674 - (NSString *) cy$toCYON {
 675     return @"undefined";
 676 }
 677
 678 - (JSValueRef) cy$JSValueInContext:(JSContextRef)context {
 679     return CYJSUndefined(context);
 680 }
 681
 682 @end
 683
 684 @implementation NSNull (Cycript)
 685
 686 - (JSType) cy$JSType {
 687     return kJSTypeNull;
 688 }
 689
 690 - (NSObject *) cy$toJSON:(NSString *)key {
 691     return self;
 692 }
 693
 694 - (NSString *) cy$toCYON {
 695     return @"null";
 696 }
 697
 698 @end
 699
 700 @implementation NSArray (Cycript)
 701
 702 - (NSString *) cy$toCYON {
 703     NSMutableString *json([[[NSMutableString alloc] init] autorelease]);
 704     [json appendString:@"["];
 705
 706     bool comma(false);
 707     for (id object in self) {
 708         if (comma)
 709             [json appendString:@","];
 710         else
 711             comma = true;
 712         if ([object cy$JSType] != kJSTypeUndefined)
 713             [json appendString:[object cy$toCYON]];
 714         else {
 715             [json appendString:@","];
 716             comma = false;
 717         }
 718     }
 719
 720     [json appendString:@"]"];
 721     return json;
 722 }
 723
 724 - (NSObject *) cy$getProperty:(NSString *)name {
 725     if ([name isEqualToString:@"length"])
 726         return [NSNumber numberWithUnsignedInteger:[self count]];
 727
 728     ssize_t index;
 729     if (!CYGetIndex(NULL, name, index) || index < 0 || index >= static_cast<ssize_t>([self count]))
 730         return [super cy$getProperty:name];
 731     else
 732         return [self objectAtIndex:index];
 733 }
 734
 735 @end
 736
 737 @implementation NSMutableArray (Cycript)
 738
 739 - (bool) cy$setProperty:(NSString *)name to:(NSObject *)value {
 740     ssize_t index;
 741     if (!CYGetIndex(NULL, name, index) || index < 0 || index >= static_cast<ssize_t>([self count]))
 742         return [super cy$setProperty:name to:value];
 743     else {
 744         [self replaceObjectAtIndex:index withObject:(value ?: [NSNull null])];
 745         return true;
 746     }
 747 }
 748
 749 - (bool) cy$deleteProperty:(NSString *)name {
 750     ssize_t index;
 751     if (!CYGetIndex(NULL, name, index) || index < 0 || index >= static_cast<ssize_t>([self count]))
 752         return [super cy$deleteProperty:name];
 753     else {
 754         [self removeObjectAtIndex:index];
 755         return true;
 756     }
 757 }
 758
 759 @end
 760
 761 @implementation NSDictionary (Cycript)
 762
 763 - (NSString *) cy$toCYON {
 764     NSMutableString *json([[[NSMutableString alloc] init] autorelease]);
 765     [json appendString:@"{"];
 766
 767     bool comma(false);
 768     for (id key in self) {
 769         if (comma)
 770             [json appendString:@","];
 771         else
 772             comma = true;
 773         [json appendString:[key cy$toKey]];
 774         [json appendString:@":"];
 775         NSObject *object([self objectForKey:key]);
 776         [json appendString:[object cy$toCYON]];
 777     }
 778
 779     [json appendString:@"}"];
 780     return json;
 781 }
 782
 783 - (NSObject *) cy$getProperty:(NSString *)name {
 784     return [self objectForKey:name];
 785 }
 786
 787 @end
 788
 789 @implementation NSMutableDictionary (Cycript)
 790
 791 - (bool) cy$setProperty:(NSString *)name to:(NSObject *)value {
 792     [self setObject:(value ?: [NSNull null]) forKey:name];
 793     return true;
 794 }
 795
 796 - (bool) cy$deleteProperty:(NSString *)name {
 797     if ([self objectForKey:name] == nil)
 798         return false;
 799     else {
 800         [self removeObjectForKey:name];
 801         return true;
 802     }
 803 }
 804
 805 @end
 806
 807 @implementation NSNumber (Cycript)
 808
 809 - (JSType) cy$JSType {
 810     // XXX: this just seems stupid
 811     return [self class] == NSCFBoolean_ ? kJSTypeBoolean : kJSTypeNumber;
 812 }
 813
 814 - (NSObject *) cy$toJSON:(NSString *)key {
 815     return self;
 816 }
 817
 818 - (NSString *) cy$toCYON {
 819     return [self cy$JSType] != kJSTypeBoolean ? [self stringValue] : [self boolValue] ? @"true" : @"false";
 820 }
 821
 822 - (JSValueRef) cy$JSValueInContext:(JSContextRef)context {
 823     return [self cy$JSType] != kJSTypeBoolean ? CYCastJSValue(context, [self doubleValue]) : CYCastJSValue(context, [self boolValue]);
 824 }
 825
 826 @end
 827
 828 @implementation NSString (Cycript)
 829
 830 - (JSType) cy$JSType {
 831     return kJSTypeString;
 832 }
 833
 834 - (NSObject *) cy$toJSON:(NSString *)key {
 835     return self;
 836 }
 837
 838 - (NSString *) cy$toCYON {
 839     // XXX: this should use the better code from Output.cpp
 840     CFMutableStringRef json(CFStringCreateMutableCopy(kCFAllocatorDefault, 0, (CFStringRef) self));
 841
 842     CFStringFindAndReplace(json, CFSTR("\\"), CFSTR("\\\\"), CFRangeMake(0, CFStringGetLength(json)), 0);
 843     CFStringFindAndReplace(json, CFSTR("\""), CFSTR("\\\""), CFRangeMake(0, CFStringGetLength(json)), 0);
 844     CFStringFindAndReplace(json, CFSTR("\t"), CFSTR("\\t"), CFRangeMake(0, CFStringGetLength(json)), 0);
 845     CFStringFindAndReplace(json, CFSTR("\r"), CFSTR("\\r"), CFRangeMake(0, CFStringGetLength(json)), 0);
 846     CFStringFindAndReplace(json, CFSTR("\n"), CFSTR("\\n"), CFRangeMake(0, CFStringGetLength(json)), 0);
 847
 848     CFStringInsert(json, 0, CFSTR("\""));
 849     CFStringAppend(json, CFSTR("\""));
 850
 851     return [reinterpret_cast<const NSString *>(json) autorelease];
 852 }
 853
 854 - (NSString *) cy$toKey {
 855     const char *value([self UTF8String]);
 856     size_t size(strlen(value));
 857
 858     if (size == 0)
 859         goto cyon;
 860
 861     if (DigitRange_[value[0]]) {
 862         ssize_t index;
 863         if (!CYGetIndex(NULL, self, index) || index < 0)
 864             goto cyon;
 865     } else {
 866         if (!WordStartRange_[value[0]])
 867             goto cyon;
 868         for (size_t i(1); i != size; ++i)
 869             if (!WordEndRange_[value[i]])
 870                 goto cyon;
 871     }
 872
 873     return self;
 874
 875   cyon:
 876     return [self cy$toCYON];
 877 }
 878
 879 - (void *) cy$symbol {
 880     CYPool pool;
 881     return dlsym(RTLD_DEFAULT, CYPoolCString(pool, self));
 882 }
 883
 884 @end
 885
 886 @interface CYJSObject : NSDictionary {
 887     JSObjectRef object_;
 888     JSContextRef context_;
 889 }
 890
 891 - (id) initWithJSObject:(JSObjectRef)object inContext:(JSContextRef)context;
 892
 893 - (NSString *) cy$toJSON:(NSString *)key;
 894
 895 - (NSUInteger) count;
 896 - (id) objectForKey:(id)key;
 897 - (NSEnumerator *) keyEnumerator;
 898 - (void) setObject:(id)object forKey:(id)key;
 899 - (void) removeObjectForKey:(id)key;
 900
 901 @end
 902
 903 @interface CYJSArray : NSArray {
 904     JSObjectRef object_;
 905     JSContextRef context_;
 906 }
 907
 908 - (id) initWithJSObject:(JSObjectRef)object inContext:(JSContextRef)context;
 909
 910 - (NSUInteger) count;
 911 - (id) objectAtIndex:(NSUInteger)index;
 912
 913 @end
 914
 915 CYRange DigitRange_    (0x3ff000000000000LLU, 0x000000000000000LLU); // 0-9
 916 CYRange WordStartRange_(0x000001000000000LLU, 0x7fffffe87fffffeLLU); // A-Za-z_$
 917 CYRange WordEndRange_  (0x3ff001000000000LLU, 0x7fffffe87fffffeLLU); // A-Za-z_$0-9
 918
 919 #define CYTry \
 920     @try
 921 #define CYCatch \
 922     @catch (id error) { \
 923         CYThrow(context, error, exception); \
 924         return NULL; \
 925     }
 926
 927 void CYThrow(JSContextRef context, JSValueRef value);
 928
 929 apr_status_t CYPoolRelease_(void *data) {
 930     id object(reinterpret_cast<id>(data));
 931     [object release];
 932     return APR_SUCCESS;
 933 }
 934
 935 id CYPoolRelease(apr_pool_t *pool, id object) {
 936     if (object == nil)
 937         return nil;
 938     else if (pool == NULL)
 939         return [object autorelease];
 940     else {
 941         apr_pool_cleanup_register(pool, object, &CYPoolRelease_, &apr_pool_cleanup_null);
 942         return object;
 943     }
 944 }
 945
 946 CFTypeRef CYPoolRelease(apr_pool_t *pool, CFTypeRef object) {
 947     return (CFTypeRef) CYPoolRelease(pool, (id) object);
 948 }
 949
 950 id CYCastNSObject_(apr_pool_t *pool, JSContextRef context, JSObjectRef object) {
 951     JSValueRef exception(NULL);
 952     bool array(JSValueIsInstanceOfConstructor(context, object, Array_, &exception));
 953     CYThrow(context, exception);
 954     id value(array ? [CYJSArray alloc] : [CYJSObject alloc]);
 955     return CYPoolRelease(pool, [value initWithJSObject:object inContext:context]);
 956 }
 957
 958 id CYCastNSObject(apr_pool_t *pool, JSContextRef context, JSObjectRef object) {
 959     if (!JSValueIsObjectOfClass(context, object, Instance_))
 960         return CYCastNSObject_(pool, context, object);
 961     else {
 962         Instance *data(reinterpret_cast<Instance *>(JSObjectGetPrivate(object)));
 963         return data->GetValue();
 964     }
 965 }
 966
 967 JSStringRef CYCopyJSString(id value) {
 968     return value == NULL ? NULL : JSStringCreateWithCFString(reinterpret_cast<CFStringRef>([value description]));
 969 }
 970
 971 JSStringRef CYCopyJSString(const char *value) {
 972     return value == NULL ? NULL : JSStringCreateWithUTF8CString(value);
 973 }
 974
 975 JSStringRef CYCopyJSString(JSStringRef value) {
 976     return value == NULL ? NULL : JSStringRetain(value);
 977 }
 978
 979 JSStringRef CYCopyJSString(JSContextRef context, JSValueRef value) {
 980     if (JSValueIsNull(context, value))
 981         return NULL;
 982     JSValueRef exception(NULL);
 983     JSStringRef string(JSValueToStringCopy(context, value, &exception));
 984     CYThrow(context, exception);
 985     return string;
 986 }
 987
 988 class CYJSString {
 989   private:
 990     JSStringRef string_;
 991
 992     void Clear_() {
 993         if (string_ != NULL)
 994             JSStringRelease(string_);
 995     }
 996
 997   public:
 998     CYJSString(const CYJSString &rhs) :
 999         string_(CYCopyJSString(rhs.string_))
1000     {
1001     }
1002
1003     template <typename Arg0_>
1004     CYJSString(Arg0_ arg0) :
1005         string_(CYCopyJSString(arg0))
1006     {
1007     }
1008
1009     template <typename Arg0_, typename Arg1_>
1010     CYJSString(Arg0_ arg0, Arg1_ arg1) :
1011         string_(CYCopyJSString(arg0, arg1))
1012     {
1013     }
1014
1015     CYJSString &operator =(const CYJSString &rhs) {
1016         Clear_();
1017         string_ = CYCopyJSString(rhs.string_);
1018         return *this;
1019     }
1020
1021     ~CYJSString() {
1022         Clear_();
1023     }
1024
1025     void Clear() {
1026         Clear_();
1027         string_ = NULL;
1028     }
1029
1030     operator JSStringRef() const {
1031         return string_;
1032     }
1033 };
1034
1035 CFStringRef CYCopyCFString(JSStringRef value) {
1036     return JSStringCopyCFString(kCFAllocatorDefault, value);
1037 }
1038
1039 CFStringRef CYCopyCFString(JSContextRef context, JSValueRef value) {
1040     return CYCopyCFString(CYJSString(context, value));
1041 }
1042
1043 double CYCastDouble(const char *value, size_t size) {
1044     char *end;
1045     double number(strtod(value, &end));
1046     if (end != value + size)
1047         return NAN;
1048     return number;
1049 }
1050
1051 double CYCastDouble(const char *value) {
1052     return CYCastDouble(value, strlen(value));
1053 }
1054
1055 double CYCastDouble(JSContextRef context, JSValueRef value) {
1056     JSValueRef exception(NULL);
1057     double number(JSValueToNumber(context, value, &exception));
1058     CYThrow(context, exception);
1059     return number;
1060 }
1061
1062 CFNumberRef CYCopyCFNumber(JSContextRef context, JSValueRef value) {
1063     double number(CYCastDouble(context, value));
1064     return CFNumberCreate(kCFAllocatorDefault, kCFNumberDoubleType, &number);
1065 }
1066
1067 CFStringRef CYCopyCFString(const char *value) {
1068     return CFStringCreateWithCString(kCFAllocatorDefault, value, kCFStringEncodingUTF8);
1069 }
1070
1071 NSString *CYCastNSString(apr_pool_t *pool, const char *value) {
1072     return (NSString *) CYPoolRelease(pool, CYCopyCFString(value));
1073 }
1074
1075 NSString *CYCastNSString(apr_pool_t *pool, JSStringRef value) {
1076     return (NSString *) CYPoolRelease(pool, CYCopyCFString(value));
1077 }
1078
1079 bool CYCastBool(JSContextRef context, JSValueRef value) {
1080     return JSValueToBoolean(context, value);
1081 }
1082
1083 CFTypeRef CYCFType(apr_pool_t *pool, JSContextRef context, JSValueRef value, bool cast) {
1084     CFTypeRef object;
1085     bool copy;
1086
1087     switch (JSType type = JSValueGetType(context, value)) {
1088         case kJSTypeUndefined:
1089             object = [WebUndefined undefined];
1090             copy = false;
1091         break;
1092
1093         case kJSTypeNull:
1094             return NULL;
1095         break;
1096
1097         case kJSTypeBoolean:
1098             object = CYCastBool(context, value) ? kCFBooleanTrue : kCFBooleanFalse;
1099             copy = false;
1100         break;
1101
1102         case kJSTypeNumber:
1103             object = CYCopyCFNumber(context, value);
1104             copy = true;
1105         break;
1106
1107         case kJSTypeString:
1108             object = CYCopyCFString(context, value);
1109             copy = true;
1110         break;
1111
1112         case kJSTypeObject:
1113             // XXX: this might could be more efficient
1114             object = (CFTypeRef) CYCastNSObject(pool, context, (JSObjectRef) value);
1115             copy = false;
1116         break;
1117
1118         default:
1119             @throw [NSException exceptionWithName:NSInternalInconsistencyException reason:[NSString stringWithFormat:@"JSValueGetType() == 0x%x", type] userInfo:nil];
1120         break;
1121     }
1122
1123     if (cast != copy)
1124         return object;
1125     else if (copy)
1126         return CYPoolRelease(pool, object);
1127     else
1128         return CFRetain(object);
1129 }
1130
1131 CFTypeRef CYCastCFType(apr_pool_t *pool, JSContextRef context, JSValueRef value) {
1132     return CYCFType(pool, context, value, true);
1133 }
1134
1135 CFTypeRef CYCopyCFType(apr_pool_t *pool, JSContextRef context, JSValueRef value) {
1136     return CYCFType(pool, context, value, false);
1137 }
1138
1139 NSArray *CYCastNSArray(JSPropertyNameArrayRef names) {
1140     CYPool pool;
1141     size_t size(JSPropertyNameArrayGetCount(names));
1142     NSMutableArray *array([NSMutableArray arrayWithCapacity:size]);
1143     for (size_t index(0); index != size; ++index)
1144         [array addObject:CYCastNSString(pool, JSPropertyNameArrayGetNameAtIndex(names, index))];
1145     return array;
1146 }
1147
1148 id CYCastNSObject(apr_pool_t *pool, JSContextRef context, JSValueRef value) {
1149     return reinterpret_cast<const NSObject *>(CYCastCFType(pool, context, value));
1150 }
1151
1152 void CYThrow(JSContextRef context, JSValueRef value) {
1153     if (value == NULL)
1154         return;
1155     @throw CYCastNSObject(NULL, context, value);
1156 }
1157
1158 JSValueRef CYJSNull(JSContextRef context) {
1159     return JSValueMakeNull(context);
1160 }
1161
1162 JSValueRef CYCastJSValue(JSContextRef context, JSStringRef value) {
1163     return value == NULL ? CYJSNull(context) : JSValueMakeString(context, value);
1164 }
1165
1166 JSValueRef CYCastJSValue(JSContextRef context, const char *value) {
1167     return CYCastJSValue(context, CYJSString(value));
1168 }
1169
1170 JSValueRef CYCastJSValue(JSContextRef context, id value) {
1171     if (value == nil)
1172         return CYJSNull(context);
1173     else if ([value respondsToSelector:@selector(cy$JSValueInContext:)])
1174         return [value cy$JSValueInContext:context];
1175     else
1176         return CYMakeInstance(context, value, false);
1177 }
1178
1179 JSObjectRef CYCastJSObject(JSContextRef context, JSValueRef value) {
1180     JSValueRef exception(NULL);
1181     JSObjectRef object(JSValueToObject(context, value, &exception));
1182     CYThrow(context, exception);
1183     return object;
1184 }
1185
1186 JSValueRef CYGetProperty(JSContextRef context, JSObjectRef object, size_t index) {
1187     JSValueRef exception(NULL);
1188     JSValueRef value(JSObjectGetPropertyAtIndex(context, object, index, &exception));
1189     CYThrow(context, exception);
1190     return value;
1191 }
1192
1193 JSValueRef CYGetProperty(JSContextRef context, JSObjectRef object, JSStringRef name) {
1194     JSValueRef exception(NULL);
1195     JSValueRef value(JSObjectGetProperty(context, object, name, &exception));
1196     CYThrow(context, exception);
1197     return value;
1198 }
1199
1200 void CYSetProperty(JSContextRef context, JSObjectRef object, JSStringRef name, JSValueRef value) {
1201     JSValueRef exception(NULL);
1202     JSObjectSetProperty(context, object, name, value, kJSPropertyAttributeNone, &exception);
1203     CYThrow(context, exception);
1204 }
1205
1206 void CYThrow(JSContextRef context, id error, JSValueRef *exception) {
1207     if (exception == NULL)
1208         throw error;
1209     *exception = CYCastJSValue(context, error);
1210 }
1211
1212 JSValueRef CYCallAsFunction(JSContextRef context, JSObjectRef function, JSObjectRef _this, size_t count, JSValueRef arguments[]) {
1213     JSValueRef exception(NULL);
1214     JSValueRef value(JSObjectCallAsFunction(context, function, _this, count, arguments, &exception));
1215     CYThrow(context, exception);
1216     return value;
1217 }
1218
1219 bool CYIsCallable(JSContextRef context, JSValueRef value) {
1220     // XXX: this isn't actually correct
1221     return value != NULL && JSValueIsObject(context, value);
1222 }
1223
1224 @implementation CYJSObject
1225
1226 - (id) initWithJSObject:(JSObjectRef)object inContext:(JSContextRef)context {
1227     if ((self = [super init]) != nil) {
1228         object_ = object;
1229         context_ = context;
1230     } return self;
1231 }
1232
1233 - (NSObject *) cy$toJSON:(NSString *)key {
1234     JSValueRef toJSON(CYGetProperty(context_, object_, toJSON_));
1235     if (!CYIsCallable(context_, toJSON))
1236         return [super cy$toJSON:key];
1237     else {
1238         JSValueRef arguments[1] = {CYCastJSValue(context_, key)};
1239         JSValueRef value(CYCallAsFunction(context_, (JSObjectRef) toJSON, object_, 1, arguments));
1240         // XXX: do I really want an NSNull here?!
1241         return CYCastNSObject(NULL, context_, value) ?: [NSNull null];
1242     }
1243 }
1244
1245 - (NSString *) cy$toCYON {
1246     JSValueRef toCYON(CYGetProperty(context_, object_, toCYON_));
1247     if (!CYIsCallable(context_, toCYON))
1248         return [super cy$toCYON];
1249     else {
1250         JSValueRef value(CYCallAsFunction(context_, (JSObjectRef) toCYON, object_, 0, NULL));
1251         return CYCastNSString(NULL, CYJSString(context_, value));
1252     }
1253 }
1254
1255 - (NSUInteger) count {
1256     JSPropertyNameArrayRef names(JSObjectCopyPropertyNames(context_, object_));
1257     size_t size(JSPropertyNameArrayGetCount(names));
1258     JSPropertyNameArrayRelease(names);
1259     return size;
1260 }
1261
1262 - (id) objectForKey:(id)key {
1263     return CYCastNSObject(NULL, context_, CYGetProperty(context_, object_, CYJSString(key))) ?: [NSNull null];
1264 }
1265
1266 - (NSEnumerator *) keyEnumerator {
1267     JSPropertyNameArrayRef names(JSObjectCopyPropertyNames(context_, object_));
1268     NSEnumerator *enumerator([CYCastNSArray(names) objectEnumerator]);
1269     JSPropertyNameArrayRelease(names);
1270     return enumerator;
1271 }
1272
1273 - (void) setObject:(id)object forKey:(id)key {
1274     CYSetProperty(context_, object_, CYJSString(key), CYCastJSValue(context_, object));
1275 }
1276
1277 - (void) removeObjectForKey:(id)key {
1278     JSValueRef exception(NULL);
1279     (void) JSObjectDeleteProperty(context_, object_, CYJSString(key), &exception);
1280     CYThrow(context_, exception);
1281 }
1282
1283 @end
1284
1285 @implementation CYJSArray
1286
1287 - (id) initWithJSObject:(JSObjectRef)object inContext:(JSContextRef)context {
1288     if ((self = [super init]) != nil) {
1289         object_ = object;
1290         context_ = context;
1291     } return self;
1292 }
1293
1294 - (NSUInteger) count {
1295     return CYCastDouble(context_, CYGetProperty(context_, object_, length_));
1296 }
1297
1298 - (id) objectAtIndex:(NSUInteger)index {
1299     JSValueRef exception(NULL);
1300     JSValueRef value(JSObjectGetPropertyAtIndex(context_, object_, index, &exception));
1301     CYThrow(context_, exception);
1302     return CYCastNSObject(NULL, context_, value) ?: [NSNull null];
1303 }
1304
1305 @end
1306
1307 CFStringRef CYCopyCYONString(JSContextRef context, JSValueRef value, JSValueRef *exception) {
1308     CYTry {
1309         CYPoolTry {
1310             id object(CYCastNSObject(NULL, context, value) ?: [NSNull null]);
1311             return reinterpret_cast<CFStringRef>([[object cy$toCYON] retain]);
1312         } CYPoolCatch(NULL)
1313     } CYCatch
1314 }
1315
1316 const char *CYPoolCYONString(apr_pool_t *pool, JSContextRef context, JSValueRef value, JSValueRef *exception) {
1317     if (NSString *json = (NSString *) CYCopyCYONString(context, value, exception)) {
1318         const char *string(CYPoolCString(pool, json));
1319         [json release];
1320         return string;
1321     } else return NULL;
1322 }
1323
1324 // XXX: use objc_getAssociatedObject and objc_setAssociatedObject on 10.6
1325 struct CYInternal :
1326     CYData
1327 {
1328     JSObjectRef object_;
1329
1330     CYInternal() :
1331         object_(NULL)
1332     {
1333     }
1334
1335     ~CYInternal() {
1336         // XXX: delete object_? ;(
1337     }
1338
1339     static CYInternal *Get(id self) {
1340         CYInternal *internal(NULL);
1341         if (object_getInstanceVariable(self, "cy$internal_", reinterpret_cast<void **>(&internal)) == NULL) {
1342             // XXX: do something epic? ;P
1343         }
1344
1345         return internal;
1346     }
1347
1348     static CYInternal *Set(id self) {
1349         CYInternal *internal(NULL);
1350         if (Ivar ivar = object_getInstanceVariable(self, "cy$internal_", reinterpret_cast<void **>(&internal))) {
1351             if (internal == NULL) {
1352                 internal = new CYInternal();
1353                 object_setIvar(self, ivar, reinterpret_cast<id>(internal));
1354             }
1355         } else {
1356             // XXX: do something epic? ;P
1357         }
1358
1359         return internal;
1360     }
1361
1362     JSValueRef GetProperty(JSContextRef context, JSStringRef name) {
1363         if (object_ == NULL)
1364             return NULL;
1365         return CYGetProperty(context, object_, name);
1366     }
1367
1368     void SetProperty(JSContextRef context, JSStringRef name, JSValueRef value) {
1369         if (object_ == NULL)
1370             object_ = JSObjectMake(context, NULL, NULL);
1371         CYSetProperty(context, object_, name, value);
1372     }
1373 };
1374
1375 static JSValueRef Instance_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) {
1376     CYPool pool;
1377
1378     CYTry {
1379         NSString *self(CYCastNSObject(pool, context, object));
1380         NSString *name(CYCastNSString(pool, property));
1381
1382         if (CYInternal *internal = CYInternal::Get(self))
1383             if (JSValueRef value = internal->GetProperty(context, property))
1384                 return value;
1385
1386         CYPoolTry {
1387             if (NSObject *data = [self cy$getProperty:name])
1388                 return CYCastJSValue(context, data);
1389         } CYPoolCatch(NULL)
1390
1391         if (objc_property_t property = class_getProperty(object_getClass(self), [name UTF8String])) {
1392             PropertyAttributes attributes(property);
1393             SEL sel(sel_registerName(attributes.Getter()));
1394             return CYSendMessage(pool, context, self, sel, 0, NULL, false, exception);
1395         }
1396
1397         return NULL;
1398     } CYCatch
1399 }
1400
1401 static bool Instance_setProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef value, JSValueRef *exception) {
1402     CYPool pool;
1403
1404     CYTry {
1405         NSString *self(CYCastNSObject(pool, context, object));
1406         NSString *name(CYCastNSString(pool, property));
1407         NSString *data(CYCastNSObject(pool, context, value));
1408
1409         CYPoolTry {
1410             if ([self cy$setProperty:name to:data])
1411                 return true;
1412         } CYPoolCatch(NULL)
1413
1414         if (objc_property_t property = class_getProperty(object_getClass(self), [name UTF8String])) {
1415             PropertyAttributes attributes(property);
1416             if (const char *setter = attributes.Setter()) {
1417                 SEL sel(sel_registerName(setter));
1418                 JSValueRef arguments[1] = {value};
1419                 CYSendMessage(pool, context, self, sel, 1, arguments, false, exception);
1420                 return true;
1421             }
1422         }
1423
1424         if (CYInternal *internal = CYInternal::Set(self)) {
1425             internal->SetProperty(context, property, value);
1426             return true;
1427         }
1428
1429         return false;
1430     } CYCatch
1431 }
1432
1433 static bool Instance_deleteProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) {
1434     CYTry {
1435         CYPoolTry {
1436             NSString *self(CYCastNSObject(NULL, context, object));
1437             NSString *name(CYCastNSString(NULL, property));
1438             return [self cy$deleteProperty:name];
1439         } CYPoolCatch(NULL)
1440     } CYCatch
1441 }
1442
1443 static JSObjectRef Instance_callAsConstructor(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
1444     CYTry {
1445         Instance *data(reinterpret_cast<Instance *>(JSObjectGetPrivate(object)));
1446         JSObjectRef value(Instance::Make(context, [data->GetValue() alloc], Instance::Uninitialized));
1447         return value;
1448     } CYCatch
1449 }
1450
1451 JSObjectRef CYMakeSelector(JSContextRef context, SEL sel) {
1452     Selector_privateData *data(new Selector_privateData(sel));
1453     return JSObjectMake(context, Selector_, data);
1454 }
1455
1456 JSObjectRef CYMakePointer(JSContextRef context, void *pointer, sig::Type *type, JSObjectRef owner) {
1457     Pointer *data(new Pointer(pointer, type, owner));
1458     return JSObjectMake(context, Pointer_, data);
1459 }
1460
1461 JSObjectRef CYMakeFunctor(JSContextRef context, void (*function)(), const char *type) {
1462     Functor_privateData *data(new Functor_privateData(type, function));
1463     return JSObjectMake(context, Functor_, data);
1464 }
1465
1466 const char *CYPoolCString(apr_pool_t *pool, JSStringRef value) {
1467     if (pool == NULL) {
1468         const char *string([CYCastNSString(NULL, value) UTF8String]);
1469         return string;
1470     } else {
1471         size_t size(JSStringGetMaximumUTF8CStringSize(value));
1472         char *string(new(pool) char[size]);
1473         JSStringGetUTF8CString(value, string, size);
1474         return string;
1475     }
1476 }
1477
1478 const char *CYPoolCString(apr_pool_t *pool, JSContextRef context, JSValueRef value) {
1479     return JSValueIsNull(context, value) ? NULL : CYPoolCString(pool, CYJSString(context, value));
1480 }
1481
1482 bool CYGetIndex(apr_pool_t *pool, JSStringRef value, ssize_t &index) {
1483     return CYGetIndex(CYPoolCString(pool, value), index);
1484 }
1485
1486 // XXX: this macro is unhygenic
1487 #define CYCastCString(context, value) ({ \
1488     char *utf8; \
1489     if (value == NULL) \
1490         utf8 = NULL; \
1491     else if (JSStringRef string = CYCopyJSString(context, value)) { \
1492         size_t size(JSStringGetMaximumUTF8CStringSize(string)); \
1493         utf8 = reinterpret_cast<char *>(alloca(size)); \
1494         JSStringGetUTF8CString(string, utf8, size); \
1495         JSStringRelease(string); \
1496     } else \
1497         utf8 = NULL; \
1498     utf8; \
1499 })
1500
1501 void *CYCastPointer_(JSContextRef context, JSValueRef value) {
1502     switch (JSValueGetType(context, value)) {
1503         case kJSTypeNull:
1504             return NULL;
1505         /*case kJSTypeString:
1506             return dlsym(RTLD_DEFAULT, CYCastCString(context, value));
1507         case kJSTypeObject:
1508             if (JSValueIsObjectOfClass(context, value, Pointer_)) {
1509                 Pointer *data(reinterpret_cast<Pointer *>(JSObjectGetPrivate((JSObjectRef) value)));
1510                 return data->value_;
1511             }*/
1512         default:
1513             double number(CYCastDouble(context, value));
1514             if (std::isnan(number))
1515                 @throw [NSException exceptionWithName:NSInvalidArgumentException reason:@"cannot convert value to pointer" userInfo:nil];
1516             return reinterpret_cast<void *>(static_cast<uintptr_t>(static_cast<long long>(number)));
1517     }
1518 }
1519
1520 template <typename Type_>
1521 _finline Type_ CYCastPointer(JSContextRef context, JSValueRef value) {
1522     return reinterpret_cast<Type_>(CYCastPointer_(context, value));
1523 }
1524
1525 SEL CYCastSEL(JSContextRef context, JSValueRef value) {
1526     if (JSValueIsObjectOfClass(context, value, Selector_)) {
1527         Selector_privateData *data(reinterpret_cast<Selector_privateData *>(JSObjectGetPrivate((JSObjectRef) value)));
1528         return reinterpret_cast<SEL>(data->value_);
1529     } else
1530         return CYCastPointer<SEL>(context, value);
1531 }
1532
1533 void CYPoolFFI(apr_pool_t *pool, JSContextRef context, sig::Type *type, ffi_type *ffi, void *data, JSValueRef value) {
1534     switch (type->primitive) {
1535         case sig::boolean_P:
1536             *reinterpret_cast<bool *>(data) = JSValueToBoolean(context, value);
1537         break;
1538
1539 #define CYPoolFFI_(primitive, native) \
1540         case sig::primitive ## _P: \
1541             *reinterpret_cast<native *>(data) = CYCastDouble(context, value); \
1542         break;
1543
1544         CYPoolFFI_(uchar, unsigned char)
1545         CYPoolFFI_(char, char)
1546         CYPoolFFI_(ushort, unsigned short)
1547         CYPoolFFI_(short, short)
1548         CYPoolFFI_(ulong, unsigned long)
1549         CYPoolFFI_(long, long)
1550         CYPoolFFI_(uint, unsigned int)
1551         CYPoolFFI_(int, int)
1552         CYPoolFFI_(ulonglong, unsigned long long)
1553         CYPoolFFI_(longlong, long long)
1554         CYPoolFFI_(float, float)
1555         CYPoolFFI_(double, double)
1556
1557         case sig::object_P:
1558         case sig::typename_P:
1559             *reinterpret_cast<id *>(data) = CYCastNSObject(pool, context, value);
1560         break;
1561
1562         case sig::selector_P:
1563             *reinterpret_cast<SEL *>(data) = CYCastSEL(context, value);
1564         break;
1565
1566         case sig::pointer_P:
1567             *reinterpret_cast<void **>(data) = CYCastPointer<void *>(context, value);
1568         break;
1569
1570         case sig::string_P:
1571             *reinterpret_cast<const char **>(data) = CYPoolCString(pool, context, value);
1572         break;
1573
1574         case sig::struct_P: {
1575             uint8_t *base(reinterpret_cast<uint8_t *>(data));
1576             JSObjectRef aggregate(JSValueIsObject(context, value) ? (JSObjectRef) value : NULL);
1577             for (size_t index(0); index != type->data.signature.count; ++index) {
1578                 sig::Element *element(&type->data.signature.elements[index]);
1579                 ffi_type *field(ffi->elements[index]);
1580
1581                 JSValueRef rhs;
1582                 if (aggregate == NULL)
1583                     rhs = value;
1584                 else {
1585                     rhs = CYGetProperty(context, aggregate, index);
1586                     if (JSValueIsUndefined(context, rhs)) {
1587                         if (element->name != NULL)
1588                             rhs = CYGetProperty(context, aggregate, CYJSString(element->name));
1589                         else
1590                             goto undefined;
1591                         if (JSValueIsUndefined(context, rhs)) undefined:
1592                             @throw [NSException exceptionWithName:NSInvalidArgumentException reason:@"unable to extract structure value" userInfo:nil];
1593                     }
1594                 }
1595
1596                 CYPoolFFI(pool, context, element->type, field, base, rhs);
1597                 // XXX: alignment?
1598                 base += field->size;
1599             }
1600         } break;
1601
1602         case sig::void_P:
1603         break;
1604
1605         default:
1606             NSLog(@"CYPoolFFI(%c)\n", type->primitive);
1607             _assert(false);
1608     }
1609 }
1610
1611 JSValueRef CYFromFFI(JSContextRef context, sig::Type *type, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner = NULL) {
1612     JSValueRef value;
1613
1614     switch (type->primitive) {
1615         case sig::boolean_P:
1616             value = CYCastJSValue(context, *reinterpret_cast<bool *>(data));
1617         break;
1618
1619 #define CYFromFFI_(primitive, native) \
1620         case sig::primitive ## _P: \
1621             value = CYCastJSValue(context, *reinterpret_cast<native *>(data)); \
1622         break;
1623
1624         CYFromFFI_(uchar, unsigned char)
1625         CYFromFFI_(char, char)
1626         CYFromFFI_(ushort, unsigned short)
1627         CYFromFFI_(short, short)
1628         CYFromFFI_(ulong, unsigned long)
1629         CYFromFFI_(long, long)
1630         CYFromFFI_(uint, unsigned int)
1631         CYFromFFI_(int, int)
1632         CYFromFFI_(ulonglong, unsigned long long)
1633         CYFromFFI_(longlong, long long)
1634         CYFromFFI_(float, float)
1635         CYFromFFI_(double, double)
1636
1637         case sig::object_P: {
1638             if (id object = *reinterpret_cast<id *>(data)) {
1639                 value = CYCastJSValue(context, object);
1640                 if (initialize)
1641                     [object release];
1642             } else goto null;
1643         } break;
1644
1645         case sig::typename_P:
1646             value = CYMakeInstance(context, *reinterpret_cast<Class *>(data), true);
1647         break;
1648
1649         case sig::selector_P:
1650             if (SEL sel = *reinterpret_cast<SEL *>(data))
1651                 value = CYMakeSelector(context, sel);
1652             else goto null;
1653         break;
1654
1655         case sig::pointer_P:
1656             if (void *pointer = *reinterpret_cast<void **>(data))
1657                 value = CYMakePointer(context, pointer, type->data.data.type, owner);
1658             else goto null;
1659         break;
1660
1661         case sig::string_P:
1662             if (char *utf8 = *reinterpret_cast<char **>(data))
1663                 value = CYCastJSValue(context, utf8);
1664             else goto null;
1665         break;
1666
1667         case sig::struct_P:
1668             value = CYMakeStruct(context, data, type, ffi, owner);
1669         break;
1670
1671         case sig::void_P:
1672             value = CYJSUndefined(context);
1673         break;
1674
1675         null:
1676             value = CYJSNull(context);
1677         break;
1678
1679         default:
1680             NSLog(@"CYFromFFI(%c)\n", type->primitive);
1681             _assert(false);
1682     }
1683
1684     return value;
1685 }
1686
1687 bool Index_(apr_pool_t *pool, Struct_privateData *internal, JSStringRef property, ssize_t &index, uint8_t *&base) {
1688     Type_privateData *typical(internal->type_);
1689     sig::Type *type(typical->type_);
1690     if (type == NULL)
1691         return false;
1692
1693     const char *name(CYPoolCString(pool, property));
1694     size_t length(strlen(name));
1695     double number(CYCastDouble(name, length));
1696
1697     size_t count(type->data.signature.count);
1698
1699     if (std::isnan(number)) {
1700         if (property == NULL)
1701             return false;
1702
1703         sig::Element *elements(type->data.signature.elements);
1704
1705         for (size_t local(0); local != count; ++local) {
1706             sig::Element *element(&elements[local]);
1707             if (element->name != NULL && strcmp(name, element->name) == 0) {
1708                 index = local;
1709                 goto base;
1710             }
1711         }
1712
1713         return false;
1714     } else {
1715         index = static_cast<ssize_t>(number);
1716         if (index != number || index < 0 || static_cast<size_t>(index) >= count)
1717             return false;
1718     }
1719
1720   base:
1721     ffi_type **elements(typical->GetFFI()->elements);
1722
1723     base = reinterpret_cast<uint8_t *>(internal->value_);
1724     for (ssize_t local(0); local != index; ++local)
1725         base += elements[local]->size;
1726
1727     return true;
1728 }
1729
1730 static JSValueRef Pointer_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) {
1731     CYPool pool;
1732     Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(object)));
1733     Type_privateData *typical(internal->type_);
1734
1735     if (typical->type_ == NULL)
1736         return NULL;
1737
1738     ssize_t index;
1739     if (!CYGetIndex(pool, property, index))
1740         return NULL;
1741
1742     ffi_type *ffi(typical->GetFFI());
1743
1744     uint8_t *base(reinterpret_cast<uint8_t *>(internal->value_));
1745     base += ffi->size * index;
1746
1747     JSObjectRef owner(internal->owner_ ?: object);
1748
1749     CYTry {
1750         return CYFromFFI(context, typical->type_, ffi, base, false, owner);
1751     } CYCatch
1752 }
1753
1754 static bool Pointer_setProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef value, JSValueRef *exception) {
1755     CYPool pool;
1756     Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(object)));
1757     Type_privateData *typical(internal->type_);
1758
1759     if (typical->type_ == NULL)
1760         return NULL;
1761
1762     ssize_t index;
1763     if (!CYGetIndex(pool, property, index))
1764         return NULL;
1765
1766     ffi_type *ffi(typical->GetFFI());
1767
1768     uint8_t *base(reinterpret_cast<uint8_t *>(internal->value_));
1769     base += ffi->size * index;
1770
1771     CYTry {
1772         CYPoolFFI(NULL, context, typical->type_, ffi, base, value);
1773         return true;
1774     } CYCatch
1775 }
1776
1777 static JSValueRef Struct_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) {
1778     CYPool pool;
1779     Struct_privateData *internal(reinterpret_cast<Struct_privateData *>(JSObjectGetPrivate(object)));
1780     Type_privateData *typical(internal->type_);
1781
1782     ssize_t index;
1783     uint8_t *base;
1784
1785     if (!Index_(pool, internal, property, index, base))
1786         return NULL;
1787
1788     JSObjectRef owner(internal->owner_ ?: object);
1789
1790     CYTry {
1791         return CYFromFFI(context, typical->type_->data.signature.elements[index].type, typical->GetFFI()->elements[index], base, false, owner);
1792     } CYCatch
1793 }
1794
1795 static bool Struct_setProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef value, JSValueRef *exception) {
1796     CYPool pool;
1797     Struct_privateData *internal(reinterpret_cast<Struct_privateData *>(JSObjectGetPrivate(object)));
1798     Type_privateData *typical(internal->type_);
1799
1800     ssize_t index;
1801     uint8_t *base;
1802
1803     if (!Index_(pool, internal, property, index, base))
1804         return false;
1805
1806     CYTry {
1807         CYPoolFFI(NULL, context, typical->type_->data.signature.elements[index].type, typical->GetFFI()->elements[index], base, value);
1808         return true;
1809     } CYCatch
1810 }
1811
1812 static void Struct_getPropertyNames(JSContextRef context, JSObjectRef object, JSPropertyNameAccumulatorRef names) {
1813     Struct_privateData *internal(reinterpret_cast<Struct_privateData *>(JSObjectGetPrivate(object)));
1814     Type_privateData *typical(internal->type_);
1815     sig::Type *type(typical->type_);
1816
1817     if (type == NULL)
1818         return;
1819
1820     size_t count(type->data.signature.count);
1821     sig::Element *elements(type->data.signature.elements);
1822
1823     char number[32];
1824
1825     for (size_t index(0); index != count; ++index) {
1826         const char *name;
1827         name = elements[index].name;
1828
1829         if (name == NULL) {
1830             sprintf(number, "%lu", index);
1831             name = number;
1832         }
1833
1834         JSPropertyNameAccumulatorAddName(names, CYJSString(name));
1835     }
1836 }
1837
1838 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)()) {
1839     CYTry {
1840         if (setups + count != signature->count - 1)
1841             @throw [NSException exceptionWithName:NSInvalidArgumentException reason:@"incorrect number of arguments to ffi function" userInfo:nil];
1842
1843         size_t size(setups + count);
1844         void *values[size];
1845         memcpy(values, setup, sizeof(void *) * setups);
1846
1847         for (size_t index(setups); index != size; ++index) {
1848             sig::Element *element(&signature->elements[index + 1]);
1849             ffi_type *ffi(cif->arg_types[index]);
1850             // XXX: alignment?
1851             values[index] = new(pool) uint8_t[ffi->size];
1852             CYPoolFFI(pool, context, element->type, ffi, values[index], arguments[index - setups]);
1853         }
1854
1855         uint8_t value[cif->rtype->size];
1856         ffi_call(cif, function, value, values);
1857
1858         return CYFromFFI(context, signature->elements[0].type, cif->rtype, value, initialize);
1859     } CYCatch
1860 }
1861
1862 void Closure_(ffi_cif *cif, void *result, void **arguments, void *arg) {
1863     ffoData *data(reinterpret_cast<ffoData *>(arg));
1864
1865     JSContextRef context(data->context_);
1866
1867     size_t count(data->cif_.nargs);
1868     JSValueRef values[count];
1869
1870     for (size_t index(0); index != count; ++index)
1871         values[index] = CYFromFFI(context, data->signature_.elements[1 + index].type, data->cif_.arg_types[index], arguments[index], false);
1872
1873     JSValueRef value(CYCallAsFunction(context, data->function_, NULL, count, values));
1874     CYPoolFFI(NULL, context, data->signature_.elements[0].type, data->cif_.rtype, result, value);
1875 }
1876
1877 JSObjectRef CYMakeFunctor(JSContextRef context, JSObjectRef function, const char *type) {
1878     // XXX: in case of exceptions this will leak
1879     ffoData *data(new ffoData(type));
1880
1881     ffi_closure *closure((ffi_closure *) _syscall(mmap(
1882         NULL, sizeof(ffi_closure),
1883         PROT_READ | PROT_WRITE, MAP_ANON | MAP_PRIVATE,
1884         -1, 0
1885     )));
1886
1887     ffi_status status(ffi_prep_closure(closure, &data->cif_, &Closure_, data));
1888     _assert(status == FFI_OK);
1889
1890     _syscall(mprotect(closure, sizeof(*closure), PROT_READ | PROT_EXEC));
1891
1892     data->value_ = closure;
1893
1894     data->context_ = CYGetJSContext();
1895     data->function_ = function;
1896
1897     return JSObjectMake(context, Functor_, data);
1898 }
1899
1900 static JSValueRef Runtime_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) {
1901     CYTry {
1902         CYPool pool;
1903         NSString *name(CYCastNSString(pool, property));
1904         if (Class _class = NSClassFromString(name))
1905             return CYMakeInstance(context, _class, true);
1906         if (NSMutableArray *entry = [[Bridge_ objectAtIndex:0] objectForKey:name])
1907             switch ([[entry objectAtIndex:0] intValue]) {
1908                 case 0:
1909                     return JSEvaluateScript(CYGetJSContext(), CYJSString([entry objectAtIndex:1]), NULL, NULL, 0, NULL);
1910                 case 1:
1911                     return CYMakeFunctor(context, reinterpret_cast<void (*)()>([name cy$symbol]), CYPoolCString(pool, [entry objectAtIndex:1]));
1912                 case 2:
1913                     // XXX: this is horrendously inefficient
1914                     sig::Signature signature;
1915                     sig::Parse(pool, &signature, CYPoolCString(pool, [entry objectAtIndex:1]), &Structor_);
1916                     ffi_cif cif;
1917                     sig::sig_ffi_cif(pool, &sig::ObjectiveC, &signature, &cif);
1918                     return CYFromFFI(context, signature.elements[0].type, cif.rtype, [name cy$symbol], false);
1919             }
1920         return NULL;
1921     } CYCatch
1922 }
1923
1924 bool stret(ffi_type *ffi_type) {
1925     return ffi_type->type == FFI_TYPE_STRUCT && (
1926         ffi_type->size > OBJC_MAX_STRUCT_BY_VALUE ||
1927         struct_forward_array[ffi_type->size] != 0
1928     );
1929 }
1930
1931 extern "C" {
1932     int *_NSGetArgc(void);
1933     char ***_NSGetArgv(void);
1934     int UIApplicationMain(int argc, char *argv[], NSString *principalClassName, NSString *delegateClassName);
1935 }
1936
1937 static JSValueRef System_print(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
1938     CYTry {
1939         NSLog(@"%s", CYCastCString(context, arguments[0]));
1940         return CYJSUndefined(context);
1941     } CYCatch
1942 }
1943
1944 JSValueRef CYSendMessage(apr_pool_t *pool, JSContextRef context, id self, SEL _cmd, size_t count, const JSValueRef arguments[], bool initialize, JSValueRef *exception) {
1945     const char *type;
1946
1947     Class _class(object_getClass(self));
1948     if (Method method = class_getInstanceMethod(_class, _cmd))
1949         type = method_getTypeEncoding(method);
1950     else {
1951         CYTry {
1952             CYPoolTry {
1953                 NSMethodSignature *method([self methodSignatureForSelector:_cmd]);
1954                 if (method == nil)
1955                     @throw [NSException exceptionWithName:NSInvalidArgumentException reason:[NSString stringWithFormat:@"unrecognized selector %s sent to object %p", sel_getName(_cmd), self] userInfo:nil];
1956                 type = CYPoolCString(pool, [method _typeString]);
1957             } CYPoolCatch(NULL)
1958         } CYCatch
1959     }
1960
1961     void *setup[2];
1962     setup[0] = &self;
1963     setup[1] = &_cmd;
1964
1965     sig::Signature signature;
1966     sig::Parse(pool, &signature, type, &Structor_);
1967
1968     ffi_cif cif;
1969     sig::sig_ffi_cif(pool, &sig::ObjectiveC, &signature, &cif);
1970
1971     void (*function)() = stret(cif.rtype) ? reinterpret_cast<void (*)()>(&objc_msgSend_stret) : reinterpret_cast<void (*)()>(&objc_msgSend);
1972     return CYCallFunction(pool, context, 2, setup, count, arguments, initialize, exception, &signature, &cif, function);
1973 }
1974
1975 static JSValueRef $objc_msgSend(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
1976     CYPool pool;
1977
1978     bool uninitialized;
1979
1980     id self;
1981     SEL _cmd;
1982
1983     CYTry {
1984         if (count < 2)
1985             @throw [NSException exceptionWithName:NSInvalidArgumentException reason:@"too few arguments to objc_msgSend" userInfo:nil];
1986
1987         if (JSValueIsObjectOfClass(context, arguments[0], Instance_)) {
1988             Instance *data(reinterpret_cast<Instance *>(JSObjectGetPrivate((JSObjectRef) arguments[0])));
1989             self = data->GetValue();
1990             uninitialized = data->IsUninitialized();
1991             if (uninitialized)
1992                 data->value_ = nil;
1993         } else {
1994             self = CYCastNSObject(pool, context, arguments[0]);
1995             uninitialized = false;
1996         }
1997
1998         if (self == nil)
1999             return CYJSNull(context);
2000
2001         _cmd = CYCastSEL(context, arguments[1]);
2002     } CYCatch
2003
2004     return CYSendMessage(pool, context, self, _cmd, count - 2, arguments + 2, uninitialized, exception);
2005 }
2006
2007 MSHook(void, CYDealloc, id self, SEL sel) {
2008     CYInternal *internal;
2009     object_getInstanceVariable(self, "cy$internal_", reinterpret_cast<void **>(&internal));
2010     if (internal != NULL)
2011         delete internal;
2012     _CYDealloc(self, sel);
2013 }
2014
2015 MSHook(void, objc_registerClassPair, Class _class) {
2016     Class super(class_getSuperclass(_class));
2017     if (super == NULL || class_getInstanceVariable(super, "cy$internal_") == NULL) {
2018         class_addIvar(_class, "cy$internal_", sizeof(CYInternal *), log2(sizeof(CYInternal *)), "^{CYInternal}");
2019         MSHookMessage(_class, @selector(dealloc), MSHake(CYDealloc));
2020     }
2021
2022     _objc_registerClassPair(_class);
2023 }
2024
2025 static JSValueRef objc_registerClassPair_(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
2026     CYTry {
2027         if (count != 1)
2028             @throw [NSException exceptionWithName:NSInvalidArgumentException reason:@"incorrect number of arguments to objc_registerClassPair" userInfo:nil];
2029         CYPool pool;
2030         Class _class(CYCastNSObject(pool, context, arguments[0]));
2031         $objc_registerClassPair(_class);
2032         return CYJSUndefined(context);
2033     } CYCatch
2034 }
2035
2036 static JSValueRef Selector_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
2037     JSValueRef setup[count + 2];
2038     setup[0] = _this;
2039     setup[1] = object;
2040     memcpy(setup + 2, arguments, sizeof(JSValueRef) * count);
2041     return $objc_msgSend(context, NULL, NULL, count + 2, setup, exception);
2042 }
2043
2044 static JSValueRef Functor_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
2045     CYPool pool;
2046     Functor_privateData *data(reinterpret_cast<Functor_privateData *>(JSObjectGetPrivate(object)));
2047     return CYCallFunction(pool, context, 0, NULL, count, arguments, false, exception, &data->signature_, &data->cif_, reinterpret_cast<void (*)()>(data->value_));
2048 }
2049
2050 JSObjectRef Selector_new(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
2051     CYTry {
2052         if (count != 1)
2053             @throw [NSException exceptionWithName:NSInvalidArgumentException reason:@"incorrect number of arguments to Selector constructor" userInfo:nil];
2054         const char *name(CYCastCString(context, arguments[0]));
2055         return CYMakeSelector(context, sel_registerName(name));
2056     } CYCatch
2057 }
2058
2059 JSObjectRef Pointer_new(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
2060     CYTry {
2061         if (count != 2)
2062             @throw [NSException exceptionWithName:NSInvalidArgumentException reason:@"incorrect number of arguments to Functor constructor" userInfo:nil];
2063
2064         void *value(CYCastPointer<void *>(context, arguments[0]));
2065         const char *type(CYCastCString(context, arguments[1]));
2066
2067         CYPool pool;
2068
2069         sig::Signature signature;
2070         sig::Parse(pool, &signature, type, &Structor_);
2071
2072         return CYMakePointer(context, value, signature.elements[0].type, NULL);
2073     } CYCatch
2074 }
2075
2076 JSObjectRef CYMakeType(JSContextRef context, JSObjectRef object, const char *type) {
2077     Type_privateData *internal(new Type_privateData(type));
2078     return JSObjectMake(context, Type_, internal);
2079 }
2080
2081 JSObjectRef Type_new(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
2082     CYTry {
2083         if (count != 1)
2084             @throw [NSException exceptionWithName:NSInvalidArgumentException reason:@"incorrect number of arguments to Type constructor" userInfo:nil];
2085         const char *type(CYCastCString(context, arguments[0]));
2086         return CYMakeType(context, object, type);
2087     } CYCatch
2088 }
2089
2090 static JSValueRef Type_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
2091     CYTry {
2092         if (count != 1)
2093             @throw [NSException exceptionWithName:NSInvalidArgumentException reason:@"incorrect number of arguments to type cast function" userInfo:nil];
2094         Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
2095         sig::Type *type(internal->type_);
2096         ffi_type *ffi(internal->GetFFI());
2097         // XXX: alignment?
2098         uint8_t value[ffi->size];
2099         CYPool pool;
2100         CYPoolFFI(pool, context, type, ffi, value, arguments[0]);
2101         return CYFromFFI(context, type, ffi, value, false);
2102     } CYCatch
2103 }
2104
2105 static JSObjectRef Type_callAsConstructor(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
2106     CYTry {
2107         if (count > 1)
2108             @throw [NSException exceptionWithName:NSInvalidArgumentException reason:@"incorrect number of arguments to type cast function" userInfo:nil];
2109         Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
2110         // XXX: alignment?
2111         void *value(malloc(internal->GetFFI()->size));
2112         return CYMakePointer(context, value, internal->type_, NULL);
2113     } CYCatch
2114 }
2115
2116 JSObjectRef Functor_new(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
2117     CYTry {
2118         if (count != 2)
2119             @throw [NSException exceptionWithName:NSInvalidArgumentException reason:@"incorrect number of arguments to Functor constructor" userInfo:nil];
2120         const char *type(CYCastCString(context, arguments[1]));
2121         JSValueRef exception(NULL);
2122         if (JSValueIsInstanceOfConstructor(context, arguments[0], Function_, &exception)) {
2123             JSObjectRef function(CYCastJSObject(context, arguments[0]));
2124             return CYMakeFunctor(context, function, type);
2125         } else if (exception != NULL) {
2126             return NULL;
2127         } else {
2128             void (*function)()(CYCastPointer<void (*)()>(context, arguments[0]));
2129             return CYMakeFunctor(context, function, type);
2130         }
2131     } CYCatch
2132 }
2133
2134 JSValueRef CYValue_getProperty_value(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) {
2135     CYValue *internal(reinterpret_cast<CYValue *>(JSObjectGetPrivate(object)));
2136     return CYCastJSValue(context, reinterpret_cast<uintptr_t>(internal->value_));
2137 }
2138
2139 JSValueRef Selector_getProperty_prototype(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) {
2140     return Function_;
2141 }
2142
2143 static JSValueRef CYValue_callAsFunction_valueOf(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
2144     CYTry {
2145         CYValue *internal(reinterpret_cast<CYValue *>(JSObjectGetPrivate(_this)));
2146         return CYCastJSValue(context, reinterpret_cast<uintptr_t>(internal->value_));
2147     } CYCatch
2148 }
2149
2150 static JSValueRef CYValue_callAsFunction_toJSON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
2151     return CYValue_callAsFunction_valueOf(context, object, _this, count, arguments, exception);
2152 }
2153
2154 static JSValueRef CYValue_callAsFunction_toCYON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
2155     CYTry {
2156         CYValue *internal(reinterpret_cast<CYValue *>(JSObjectGetPrivate(_this)));
2157         char string[32];
2158         sprintf(string, "%p", internal->value_);
2159         return CYCastJSValue(context, string);
2160     } CYCatch
2161 }
2162
2163 static JSValueRef Instance_callAsFunction_toCYON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
2164     CYTry {
2165         Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(_this)));
2166         CYPoolTry {
2167             return CYCastJSValue(context, CYJSString([internal->GetValue() cy$toCYON]));
2168         } CYPoolCatch(NULL)
2169     } CYCatch
2170 }
2171
2172 static JSValueRef Instance_callAsFunction_toJSON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
2173     CYTry {
2174         Instance *internal(reinterpret_cast<Instance *>(JSObjectGetPrivate(_this)));
2175         CYPoolTry {
2176             NSString *key(count == 0 ? nil : CYCastNSString(NULL, CYJSString(context, arguments[0])));
2177             return CYCastJSValue(context, CYJSString([internal->GetValue() cy$toJSON:key]));
2178         } CYPoolCatch(NULL)
2179     } CYCatch
2180 }
2181
2182 static JSValueRef Instance_callAsFunction_toString(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
2183     CYTry {
2184         Instance *data(reinterpret_cast<Instance *>(JSObjectGetPrivate(_this)));
2185         CYPoolTry {
2186             return CYCastJSValue(context, CYJSString([data->GetValue() description]));
2187         } CYPoolCatch(NULL)
2188     } CYCatch
2189 }
2190
2191 static JSValueRef Selector_callAsFunction_toString(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
2192     CYTry {
2193         Selector_privateData *data(reinterpret_cast<Selector_privateData *>(JSObjectGetPrivate(_this)));
2194         return CYCastJSValue(context, sel_getName(data->GetValue()));
2195     } CYCatch
2196 }
2197
2198 static JSValueRef Selector_callAsFunction_toJSON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
2199     return Selector_callAsFunction_toString(context, object, _this, count, arguments, exception);
2200 }
2201
2202 static JSValueRef Selector_callAsFunction_toCYON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
2203     CYTry {
2204         Selector_privateData *data(reinterpret_cast<Selector_privateData *>(JSObjectGetPrivate(_this)));
2205         const char *name(sel_getName(data->GetValue()));
2206         CYPoolTry {
2207             return CYCastJSValue(context, CYJSString([NSString stringWithFormat:@"@selector(%s)", name]));
2208         } CYPoolCatch(NULL)
2209     } CYCatch
2210 }
2211
2212 static JSValueRef Selector_callAsFunction_type(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
2213     CYTry {
2214         if (count != 2)
2215             @throw [NSException exceptionWithName:NSInvalidArgumentException reason:@"incorrect number of arguments to Selector.type" userInfo:nil];
2216         CYPool pool;
2217         Selector_privateData *data(reinterpret_cast<Selector_privateData *>(JSObjectGetPrivate(_this)));
2218         Class _class(CYCastNSObject(pool, context, arguments[0]));
2219         bool instance(CYCastBool(context, arguments[1]));
2220         SEL sel(data->GetValue());
2221         if (Method method = (*(instance ? &class_getInstanceMethod : class_getClassMethod))(_class, sel))
2222             return CYCastJSValue(context, method_getTypeEncoding(method));
2223         else if (NSString *type = [[Bridge_ objectAtIndex:1] objectForKey:CYCastNSString(pool, sel_getName(sel))])
2224             return CYCastJSValue(context, CYJSString(type));
2225         else
2226             return CYJSNull(context);
2227     } CYCatch
2228 }
2229
2230 static JSStaticValue CYValue_staticValues[2] = {
2231     {"value", &CYValue_getProperty_value, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete},
2232     {NULL, NULL, NULL, 0}
2233 };
2234
2235 static JSStaticFunction Pointer_staticFunctions[4] = {
2236     {"toCYON", &CYValue_callAsFunction_toCYON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2237     {"toJSON", &CYValue_callAsFunction_toJSON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2238     {"valueOf", &CYValue_callAsFunction_valueOf, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2239     {NULL, NULL, 0}
2240 };
2241
2242 static JSStaticFunction Functor_staticFunctions[4] = {
2243     {"toCYON", &CYValue_callAsFunction_toCYON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2244     {"toJSON", &CYValue_callAsFunction_toJSON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2245     {"valueOf", &CYValue_callAsFunction_valueOf, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2246     {NULL, NULL, 0}
2247 };
2248
2249 /*static JSStaticValue Selector_staticValues[2] = {
2250     {"prototype", &Selector_getProperty_prototype, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete},
2251     {NULL, NULL, NULL, 0}
2252 };*/
2253
2254 static JSStaticFunction Instance_staticFunctions[4] = {
2255     {"toCYON", &Instance_callAsFunction_toCYON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2256     {"toJSON", &Instance_callAsFunction_toJSON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2257     {"toString", &Instance_callAsFunction_toString, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2258     {NULL, NULL, 0}
2259 };
2260
2261 static JSStaticFunction Selector_staticFunctions[5] = {
2262     {"toCYON", &Selector_callAsFunction_toCYON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2263     {"toJSON", &Selector_callAsFunction_toJSON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2264     {"toString", &Selector_callAsFunction_toString, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2265     {"type", &Selector_callAsFunction_type, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
2266     {NULL, NULL, 0}
2267 };
2268
2269 CYDriver::CYDriver(const std::string &filename) :
2270     state_(CYClear),
2271     data_(NULL),
2272     size_(0),
2273     filename_(filename),
2274     source_(NULL)
2275 {
2276     ScannerInit();
2277 }
2278
2279 CYDriver::~CYDriver() {
2280     ScannerDestroy();
2281 }
2282
2283 void cy::parser::error(const cy::parser::location_type &location, const std::string &message) {
2284     CYDriver::Error error;
2285     error.location_ = location;
2286     error.message_ = message;
2287     driver.errors_.push_back(error);
2288 }
2289
2290 void CYSetArgs(int argc, const char *argv[]) {
2291     JSContextRef context(CYGetJSContext());
2292     JSValueRef args[argc];
2293     for (int i(0); i != argc; ++i)
2294         args[i] = CYCastJSValue(context, argv[i]);
2295     JSValueRef exception(NULL);
2296     JSObjectRef array(JSObjectMakeArray(context, argc, args, &exception));
2297     CYThrow(context, exception);
2298     CYSetProperty(context, System_, CYJSString("args"), array);
2299 }
2300
2301 JSObjectRef CYGetGlobalObject(JSContextRef context) {
2302     return JSContextGetGlobalObject(context);
2303 }
2304
2305 const char *CYExecute(apr_pool_t *pool, const char *code) { _pooled
2306     JSStringRef script(JSStringCreateWithUTF8CString(code));
2307
2308     JSContextRef context(CYGetJSContext());
2309
2310     JSValueRef exception(NULL);
2311     JSValueRef result(JSEvaluateScript(context, script, NULL, NULL, 0, &exception));
2312     JSStringRelease(script);
2313
2314     if (exception != NULL) { error:
2315         result = exception;
2316         exception = NULL;
2317     }
2318
2319     if (JSValueIsUndefined(context, result))
2320         return NULL;
2321
2322     const char *json(CYPoolCYONString(pool, context, result, &exception));
2323     if (exception != NULL)
2324         goto error;
2325
2326     CYSetProperty(context, CYGetGlobalObject(context), Result_, result);
2327     return json;
2328 }
2329
2330 bool CYRecvAll_(int socket, uint8_t *data, size_t size) {
2331     while (size != 0) if (size_t writ = _syscall(recv(socket, data, size, 0))) {
2332         data += writ;
2333         size -= writ;
2334     } else
2335         return false;
2336     return true;
2337 }
2338
2339 bool CYSendAll_(int socket, const uint8_t *data, size_t size) {
2340     while (size != 0) if (size_t writ = _syscall(send(socket, data, size, 0))) {
2341         data += writ;
2342         size -= writ;
2343     } else
2344         return false;
2345     return true;
2346 }
2347
2348 static int Socket_;
2349 apr_pool_t *Pool_;
2350
2351 struct CYExecute_ {
2352     apr_pool_t *pool_;
2353     const char * volatile data_;
2354 };
2355
2356 // XXX: this is "tre lame"
2357 @interface CYClient_ : NSObject {
2358 }
2359
2360 - (void) execute:(NSValue *)value;
2361
2362 @end
2363
2364 @implementation CYClient_
2365
2366 - (void) execute:(NSValue *)value {
2367     CYExecute_ *execute(reinterpret_cast<CYExecute_ *>([value pointerValue]));
2368     NSLog(@"b:%p", execute->data_);
2369     NSLog(@"s:%s", execute->data_);
2370     execute->data_ = CYExecute(execute->pool_, execute->data_);
2371     NSLog(@"a:%p", execute->data_);
2372 }
2373
2374 @end
2375
2376 struct CYClient :
2377     CYData
2378 {
2379     int socket_;
2380     apr_thread_t *thread_;
2381
2382     CYClient(int socket) :
2383         socket_(socket)
2384     {
2385     }
2386
2387     ~CYClient() {
2388         _syscall(close(socket_));
2389     }
2390
2391     void Handle() { _pooled
2392         CYClient_ *client = [[[CYClient_ alloc] init] autorelease];
2393
2394         for (;;) {
2395             size_t size;
2396             if (!CYRecvAll(socket_, &size, sizeof(size)))
2397                 return;
2398
2399             CYPool pool;
2400             char *data(new(pool) char[size + 1]);
2401             if (!CYRecvAll(socket_, data, size))
2402                 return;
2403             data[size] = '\0';
2404
2405             CYDriver driver("");
2406             cy::parser parser(driver);
2407
2408             driver.data_ = data;
2409             driver.size_ = size;
2410
2411             const char *json;
2412             if (parser.parse() != 0 || !driver.errors_.empty()) {
2413                 json = NULL;
2414                 size = _not(size_t);
2415             } else {
2416                 std::ostringstream str;
2417                 driver.source_->Show(str);
2418                 std::string code(str.str());
2419                 CYExecute_ execute = {pool, code.c_str()};
2420                 [client performSelectorOnMainThread:@selector(execute:) withObject:[NSValue valueWithPointer:&execute] waitUntilDone:YES];
2421                 json = execute.data_;
2422                 size = json == NULL ? _not(size_t) : strlen(json);
2423             }
2424
2425             if (!CYSendAll(socket_, &size, sizeof(size)))
2426                 return;
2427             if (json != NULL)
2428                 if (!CYSendAll(socket_, json, size))
2429                     return;
2430         }
2431     }
2432 };
2433
2434 static void * APR_THREAD_FUNC OnClient(apr_thread_t *thread, void *data) {
2435     CYClient *client(reinterpret_cast<CYClient *>(data));
2436     client->Handle();
2437     delete client;
2438     return NULL;
2439 }
2440
2441 static void * APR_THREAD_FUNC Cyrver(apr_thread_t *thread, void *data) {
2442     for (;;) {
2443         int socket(_syscall(accept(Socket_, NULL, NULL)));
2444         CYClient *client(new CYClient(socket));
2445         apr_threadattr_t *attr;
2446         _aprcall(apr_threadattr_create(&attr, Pool_));
2447         _aprcall(apr_thread_create(&client->thread_, attr, &OnClient, client, client->pool_));
2448     }
2449
2450     return NULL;
2451 }
2452
2453 void Unlink() {
2454     pid_t pid(getpid());
2455     char path[104];
2456     sprintf(path, "/tmp/.s.cy.%u", pid);
2457     unlink(path);
2458 }
2459
2460 MSInitialize { _pooled
2461     _aprcall(apr_initialize());
2462     _aprcall(apr_pool_create(&Pool_, NULL));
2463
2464     Bridge_ = [[NSMutableArray arrayWithContentsOfFile:@"/usr/lib/libcycript.plist"] retain];
2465     NSCFBoolean_ = objc_getClass("NSCFBoolean");
2466
2467     Socket_ = _syscall(socket(PF_UNIX, SOCK_STREAM, 0));
2468
2469     struct sockaddr_un address;
2470     memset(&address, 0, sizeof(address));
2471     address.sun_family = AF_UNIX;
2472
2473     pid_t pid(getpid());
2474     sprintf(address.sun_path, "/tmp/.s.cy.%u", pid);
2475
2476     try {
2477         _syscall(bind(Socket_, reinterpret_cast<sockaddr *>(&address), SUN_LEN(&address)));
2478         atexit(&Unlink);
2479         _syscall(listen(Socket_, 0));
2480
2481         apr_threadattr_t *attr;
2482         _aprcall(apr_threadattr_create(&attr, Pool_));
2483
2484         apr_thread_t *thread;
2485         _aprcall(apr_thread_create(&thread, attr, &Cyrver, NULL, Pool_));
2486     } catch (...) {
2487         NSLog(@"failed to setup Cyrver");
2488     }
2489 }
2490
2491 JSGlobalContextRef CYGetJSContext() {
2492     if (Context_ == NULL) {
2493         JSClassDefinition definition;
2494
2495         definition = kJSClassDefinitionEmpty;
2496         definition.className = "Functor";
2497         definition.staticFunctions = Functor_staticFunctions;
2498         definition.callAsFunction = &Functor_callAsFunction;
2499         definition.finalize = &CYData::Finalize;
2500         Functor_ = JSClassCreate(&definition);
2501
2502         definition = kJSClassDefinitionEmpty;
2503         definition.className = "Instance";
2504         definition.staticValues = CYValue_staticValues;
2505         definition.staticFunctions = Instance_staticFunctions;
2506         definition.getProperty = &Instance_getProperty;
2507         definition.setProperty = &Instance_setProperty;
2508         definition.deleteProperty = &Instance_deleteProperty;
2509         definition.callAsConstructor = &Instance_callAsConstructor;
2510         definition.finalize = &CYData::Finalize;
2511         Instance_ = JSClassCreate(&definition);
2512
2513         definition = kJSClassDefinitionEmpty;
2514         definition.className = "Pointer";
2515         definition.staticFunctions = Pointer_staticFunctions;
2516         definition.getProperty = &Pointer_getProperty;
2517         definition.setProperty = &Pointer_setProperty;
2518         definition.finalize = &CYData::Finalize;
2519         Pointer_ = JSClassCreate(&definition);
2520
2521         definition = kJSClassDefinitionEmpty;
2522         definition.className = "Selector";
2523         definition.staticValues = CYValue_staticValues;
2524         //definition.staticValues = Selector_staticValues;
2525         definition.staticFunctions = Selector_staticFunctions;
2526         definition.callAsFunction = &Selector_callAsFunction;
2527         definition.finalize = &CYData::Finalize;
2528         Selector_ = JSClassCreate(&definition);
2529
2530         definition = kJSClassDefinitionEmpty;
2531         definition.className = "Struct";
2532         definition.getProperty = &Struct_getProperty;
2533         definition.setProperty = &Struct_setProperty;
2534         definition.getPropertyNames = &Struct_getPropertyNames;
2535         definition.finalize = &CYData::Finalize;
2536         Struct_ = JSClassCreate(&definition);
2537
2538         definition = kJSClassDefinitionEmpty;
2539         definition.className = "Type";
2540         definition.callAsFunction = &Type_callAsFunction;
2541         definition.callAsConstructor = &Type_callAsConstructor;
2542         definition.finalize = &CYData::Finalize;
2543         Type_ = JSClassCreate(&definition);
2544
2545         definition = kJSClassDefinitionEmpty;
2546         definition.className = "Runtime";
2547         definition.getProperty = &Runtime_getProperty;
2548         Runtime_ = JSClassCreate(&definition);
2549
2550         definition = kJSClassDefinitionEmpty;
2551         //definition.getProperty = &Global_getProperty;
2552         JSClassRef Global(JSClassCreate(&definition));
2553
2554         JSGlobalContextRef context(JSGlobalContextCreate(Global));
2555         Context_ = context;
2556
2557         JSObjectRef global(CYGetGlobalObject(context));
2558
2559         JSObjectSetPrototype(context, global, JSObjectMake(context, Runtime_, NULL));
2560         CYSetProperty(context, global, CYJSString("ObjectiveC"), JSObjectMake(context, Runtime_, NULL));
2561
2562         CYSetProperty(context, global, CYJSString("Functor"), JSObjectMakeConstructor(context, Functor_, &Functor_new));
2563         CYSetProperty(context, global, CYJSString("Instance"), JSObjectMakeConstructor(context, Instance_, NULL));
2564         CYSetProperty(context, global, CYJSString("Pointer"), JSObjectMakeConstructor(context, Pointer_, &Pointer_new));
2565         CYSetProperty(context, global, CYJSString("Selector"), JSObjectMakeConstructor(context, Selector_, &Selector_new));
2566         CYSetProperty(context, global, CYJSString("Type"), JSObjectMakeConstructor(context, Type_, &Type_new));
2567
2568         MSHookFunction(&objc_registerClassPair, MSHake(objc_registerClassPair));
2569
2570         CYSetProperty(context, global, CYJSString("objc_registerClassPair"), JSObjectMakeFunctionWithCallback(context, CYJSString("objc_registerClassPair"), &objc_registerClassPair_));
2571         CYSetProperty(context, global, CYJSString("objc_msgSend"), JSObjectMakeFunctionWithCallback(context, CYJSString("objc_msgSend"), &$objc_msgSend));
2572
2573         System_ = JSObjectMake(context, NULL, NULL);
2574         CYSetProperty(context, global, CYJSString("system"), System_);
2575         CYSetProperty(context, System_, CYJSString("args"), CYJSNull(context));
2576         //CYSetProperty(context, System_, CYJSString("global"), global);
2577
2578         CYSetProperty(context, System_, CYJSString("print"), JSObjectMakeFunctionWithCallback(context, CYJSString("print"), &System_print));
2579
2580         Result_ = JSStringCreateWithUTF8CString("_");
2581
2582         length_ = JSStringCreateWithUTF8CString("length");
2583         message_ = JSStringCreateWithUTF8CString("message");
2584         name_ = JSStringCreateWithUTF8CString("name");
2585         toCYON_ = JSStringCreateWithUTF8CString("toCYON");
2586         toJSON_ = JSStringCreateWithUTF8CString("toJSON");
2587
2588         Array_ = CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Array")));
2589         Function_ = CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Function")));
2590     }
2591
2592     return Context_;
2593 }