Library.mm

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