Execute.cpp

   1 /* Cycript - The Truly Universal Scripting Language
   2  * Copyright (C) 2009-2016  Jay Freeman (saurik)
   3 */
   4
   5 /* GNU Affero General Public License, Version 3 {{{ */
   6 /*
   7  * This program is free software: you can redistribute it and/or modify
   8  * it under the terms of the GNU Affero General Public License as published by
   9  * the Free Software Foundation, either version 3 of the License, or
  10  * (at your option) any later version.
  11
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU Affero General Public License for more details.
  16
  17  * You should have received a copy of the GNU Affero General Public License
  18  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19 **/
  20 /* }}} */
  21
  22 #include "cycript.hpp"
  23
  24 #include <iostream>
  25 #include <set>
  26 #include <map>
  27 #include <iomanip>
  28 #include <sstream>
  29 #include <cmath>
  30
  31 #include <dlfcn.h>
  32 #include <dirent.h>
  33 #include <fcntl.h>
  34 #include <unistd.h>
  35
  36 #include <sys/mman.h>
  37 #include <sys/stat.h>
  38
  39 #include <sqlite3.h>
  40
  41 #include "sig/parse.hpp"
  42 #include "sig/ffi_type.hpp"
  43
  44 #include "Code.hpp"
  45 #include "Decode.hpp"
  46 #include "Error.hpp"
  47 #include "Execute.hpp"
  48 #include "Internal.hpp"
  49 #include "JavaScript.hpp"
  50 #include "Pooling.hpp"
  51 #include "String.hpp"
  52
  53 const char *sqlite3_column_string(sqlite3_stmt *stmt, int n) {
  54     return reinterpret_cast<const char *>(sqlite3_column_text(stmt, n));
  55 }
  56
  57 char *sqlite3_column_pooled(CYPool &pool, sqlite3_stmt *stmt, int n) {
  58     if (const char *value = sqlite3_column_string(stmt, n))
  59         return pool.strdup(value);
  60     else return NULL;
  61 }
  62
  63 static std::vector<CYHook *> &GetHooks() {
  64     static std::vector<CYHook *> hooks;
  65     return hooks;
  66 }
  67
  68 CYRegisterHook::CYRegisterHook(CYHook *hook) {
  69     GetHooks().push_back(hook);
  70 }
  71
  72 /* JavaScript Properties {{{ */
  73 bool CYHasProperty(JSContextRef context, JSObjectRef object, JSStringRef name) {
  74     return JSObjectHasProperty(context, object, name);
  75 }
  76
  77 JSValueRef CYGetProperty(JSContextRef context, JSObjectRef object, size_t index) {
  78     return _jsccall(JSObjectGetPropertyAtIndex, context, object, index);
  79 }
  80
  81 JSValueRef CYGetProperty(JSContextRef context, JSObjectRef object, JSStringRef name) {
  82     return _jsccall(JSObjectGetProperty, context, object, name);
  83 }
  84
  85 void CYSetProperty(JSContextRef context, JSObjectRef object, size_t index, JSValueRef value) {
  86     _jsccall(JSObjectSetPropertyAtIndex, context, object, index, value);
  87 }
  88
  89 void CYSetProperty(JSContextRef context, JSObjectRef object, JSStringRef name, JSValueRef value, JSPropertyAttributes attributes) {
  90     _jsccall(JSObjectSetProperty, context, object, name, value, attributes);
  91 }
  92
  93 void CYSetProperty(JSContextRef context, JSObjectRef object, JSStringRef name, JSValueRef (*callback)(JSContextRef, JSObjectRef, JSObjectRef, size_t, const JSValueRef[], JSValueRef *), JSPropertyAttributes attributes) {
  94     CYSetProperty(context, object, name, JSObjectMakeFunctionWithCallback(context, name, callback), attributes);
  95 }
  96
  97 JSObjectRef CYGetPrototype(JSContextRef context, JSObjectRef object) {
  98     return CYCastJSObject(context, JSObjectGetPrototype(context, object));
  99 }
 100
 101 void CYSetPrototype(JSContextRef context, JSObjectRef object, JSValueRef value) {
 102     _assert(!JSValueIsUndefined(context, value));
 103     JSObjectSetPrototype(context, object, value);
 104     _assert(CYIsStrictEqual(context, JSObjectGetPrototype(context, object), value));
 105 }
 106 /* }}} */
 107 /* JavaScript Strings {{{ */
 108 JSStringRef CYCopyJSString(const char *value) {
 109     return value == NULL ? NULL : JSStringCreateWithUTF8CString(value);
 110 }
 111
 112 JSStringRef CYCopyJSString(JSStringRef value) {
 113     return value == NULL ? NULL : JSStringRetain(value);
 114 }
 115
 116 JSStringRef CYCopyJSString(CYUTF8String value) {
 117     if (memchr(value.data, '\0', value.size) != NULL) {
 118         CYPool pool;
 119         return CYCopyJSString(CYPoolUTF16String(pool, value));
 120     } else if (value.data[value.size] != '\0') {
 121         CYPool pool;
 122         return CYCopyJSString(pool.strmemdup(value.data, value.size));
 123     } else {
 124         return CYCopyJSString(value.data);
 125     }
 126 }
 127
 128 JSStringRef CYCopyJSString(const std::string &value) {
 129     return CYCopyJSString(CYUTF8String(value.c_str(), value.size()));
 130 }
 131
 132 JSStringRef CYCopyJSString(CYUTF16String value) {
 133     return JSStringCreateWithCharacters(value.data, value.size);
 134 }
 135
 136 JSStringRef CYCopyJSString(JSContextRef context, JSValueRef value) {
 137     if (JSValueIsNull(context, value))
 138         return NULL;
 139     return _jsccall(JSValueToStringCopy, context, value);
 140 }
 141
 142 CYUTF16String CYCastUTF16String(JSStringRef value) {
 143     return CYUTF16String(JSStringGetCharactersPtr(value), JSStringGetLength(value));
 144 }
 145
 146 const char *CYPoolCString(CYPool &pool, CYUTF8String utf8) {
 147     return pool.strndup(utf8.data, utf8.size);
 148 }
 149
 150 CYUTF8String CYPoolUTF8String(CYPool &pool, JSContextRef context, JSStringRef value) {
 151     return CYPoolUTF8String(pool, CYCastUTF16String(value));
 152 }
 153
 154 const char *CYPoolCString(CYPool &pool, JSContextRef context, JSStringRef value) {
 155     CYUTF8String utf8(CYPoolUTF8String(pool, context, value));
 156     _assert(memchr(utf8.data, '\0', utf8.size) == NULL);
 157     return utf8.data;
 158 }
 159
 160 const char *CYPoolCString(CYPool &pool, JSContextRef context, JSValueRef value) {
 161     return JSValueIsNull(context, value) ? NULL : CYPoolCString(pool, context, CYJSString(context, value));
 162 }
 163 /* }}} */
 164 /* Index Offsets {{{ */
 165 size_t CYGetIndex(CYPool &pool, JSContextRef context, JSStringRef value) {
 166     return CYGetIndex(CYPoolUTF8String(pool, context, value));
 167 }
 168 /* }}} */
 169
 170 static JSObjectRef (*JSObjectMakeArray$)(JSContextRef, size_t, const JSValueRef[], JSValueRef *);
 171
 172 JSObjectRef CYObjectMakeArray(JSContextRef context, size_t length, const JSValueRef values[]) {
 173     if (JSObjectMakeArray$ != NULL)
 174         return _jsccall(*JSObjectMakeArray$, context, length, values);
 175     else {
 176         JSObjectRef Array(CYGetCachedObject(context, CYJSString("Array")));
 177         JSValueRef value(CYCallAsFunction(context, Array, NULL, length, values));
 178         return CYCastJSObject(context, value);
 179     }
 180 }
 181
 182 static JSClassRef All_;
 183 JSClassRef Functor_;
 184 static JSClassRef Global_;
 185
 186 JSStringRef Array_s;
 187 JSStringRef constructor_s;
 188 JSStringRef cy_s;
 189 JSStringRef cyi_s;
 190 JSStringRef cyt_s;
 191 JSStringRef length_s;
 192 JSStringRef message_s;
 193 JSStringRef name_s;
 194 JSStringRef pop_s;
 195 JSStringRef prototype_s;
 196 JSStringRef push_s;
 197 JSStringRef splice_s;
 198 JSStringRef toCYON_s;
 199 JSStringRef toJSON_s;
 200 JSStringRef toPointer_s;
 201 JSStringRef toString_s;
 202 JSStringRef weak_s;
 203
 204 static sqlite3 *database_;
 205
 206 static JSStringRef Result_;
 207
 208 void CYFinalize(JSObjectRef object) {
 209     CYData *internal(reinterpret_cast<CYData *>(JSObjectGetPrivate(object)));
 210     _assert(internal->count_ != _not(unsigned));
 211     if (--internal->count_ == 0)
 212         delete internal;
 213 }
 214
 215 sig::Type *Structor_(CYPool &pool, sig::Aggregate *aggregate) {
 216     //_assert(false);
 217     return aggregate;
 218 }
 219
 220 struct Context :
 221     CYPrivate<Context>
 222 {
 223     JSGlobalContextRef context_;
 224
 225     Context(JSGlobalContextRef context) :
 226         context_(context)
 227     {
 228     }
 229 };
 230
 231 struct CArray :
 232     CYValue<CArray, void *>
 233 {
 234     CYProtect owner_;
 235     Type_privateData *type_;
 236     size_t length_;
 237
 238     CArray(void *value, size_t length, const sig::Type &type, ffi_type *ffi, JSContextRef context, JSObjectRef owner) :
 239         CYValue(value),
 240         owner_(context, owner),
 241         type_(new(*pool_) Type_privateData(type, ffi)),
 242         length_(length)
 243     {
 244         if (owner == NULL) {
 245             size_t size(ffi->size * length);
 246             void *copy(pool_->malloc<void>(size, ffi->alignment));
 247             memcpy(copy, value_, size);
 248             value_ = copy;
 249         }
 250     }
 251 };
 252
 253 struct CString :
 254     CYValue<CString, char *>
 255 {
 256     CYProtect owner_;
 257
 258     CString(char *value, JSContextRef context, JSObjectRef owner) :
 259         CYValue(value),
 260         owner_(context, owner)
 261     {
 262         if (owner == NULL)
 263             value_ = pool_->strdup(value_);
 264     }
 265 };
 266
 267 struct Pointer :
 268     CYValue<Pointer, void *>
 269 {
 270     CYProtect owner_;
 271     Type_privateData *type_;
 272
 273     Pointer(void *value, const sig::Type &type, JSContextRef context, JSObjectRef owner) :
 274         CYValue(value),
 275         owner_(context, owner),
 276         type_(new(*pool_) Type_privateData(type))
 277     {
 278     }
 279
 280     Pointer(void *value, const char *encoding, JSContextRef context, JSObjectRef owner) :
 281         CYValue(value),
 282         owner_(context, owner),
 283         type_(new(*pool_) Type_privateData(encoding))
 284     {
 285     }
 286 };
 287
 288 struct Struct_privateData :
 289     CYValue<Struct_privateData, void *>
 290 {
 291     CYProtect owner_;
 292     Type_privateData *type_;
 293
 294     Struct_privateData(void *value, const sig::Type &type, ffi_type *ffi, JSContextRef context, JSObjectRef owner) :
 295         CYValue(value),
 296         owner_(context, owner),
 297         type_(new(*pool_) Type_privateData(type, ffi))
 298     {
 299         if (owner == NULL) {
 300             size_t size(ffi->size);
 301             void *copy(pool_->malloc<void>(size, ffi->alignment));
 302             memcpy(copy, value_, size);
 303             value_ = copy;
 304         }
 305     }
 306 };
 307
 308 static void *CYCastSymbol(const char *name) {
 309     for (CYHook *hook : GetHooks())
 310         if (hook->CastSymbol != NULL)
 311             if (void *value = (*hook->CastSymbol)(name))
 312                 return value;
 313     return dlsym(RTLD_DEFAULT, name);
 314 }
 315
 316 JSValueRef CYCastJSValue(JSContextRef context, bool value) {
 317     return JSValueMakeBoolean(context, value);
 318 }
 319
 320 JSValueRef CYCastJSValue(JSContextRef context, double value) {
 321     return JSValueMakeNumber(context, value);
 322 }
 323
 324 #define CYCastJSValue_(Type_) \
 325     JSValueRef CYCastJSValue(JSContextRef context, Type_ value) { \
 326         _assert(static_cast<Type_>(static_cast<double>(value)) == value); \
 327         return JSValueMakeNumber(context, static_cast<double>(value)); \
 328     }
 329
 330 CYCastJSValue_(signed short int)
 331 CYCastJSValue_(unsigned short int)
 332 CYCastJSValue_(signed int)
 333 CYCastJSValue_(unsigned int)
 334 CYCastJSValue_(signed long int)
 335 CYCastJSValue_(unsigned long int)
 336 CYCastJSValue_(signed long long int)
 337 CYCastJSValue_(unsigned long long int)
 338
 339 #ifdef __SIZEOF_INT128__
 340 CYCastJSValue_(signed __int128)
 341 CYCastJSValue_(unsigned __int128)
 342 #endif
 343
 344 JSValueRef CYJSUndefined(JSContextRef context) {
 345     return JSValueMakeUndefined(context);
 346 }
 347
 348 double CYCastDouble(JSContextRef context, JSValueRef value) {
 349     return _jsccall(JSValueToNumber, context, value);
 350 }
 351
 352 bool CYCastBool(JSContextRef context, JSValueRef value) {
 353     return JSValueToBoolean(context, value);
 354 }
 355
 356 JSValueRef CYJSNull(JSContextRef context) {
 357     return JSValueMakeNull(context);
 358 }
 359
 360 JSValueRef CYCastJSValue(JSContextRef context, JSStringRef value) {
 361     return value == NULL ? CYJSNull(context) : JSValueMakeString(context, value);
 362 }
 363
 364 JSValueRef CYCastJSValue(JSContextRef context, const char *value) {
 365     return CYCastJSValue(context, CYJSString(value));
 366 }
 367
 368 JSObjectRef CYCastJSObject(JSContextRef context, JSValueRef value) {
 369     return _jsccall(JSValueToObject, context, value);
 370 }
 371
 372 JSValueRef CYCallAsFunction(JSContextRef context, JSObjectRef function, JSObjectRef _this, size_t count, const JSValueRef arguments[]) {
 373     return _jsccall(JSObjectCallAsFunction, context, function, _this, count, arguments);
 374 }
 375
 376 bool CYIsCallable(JSContextRef context, JSValueRef value) {
 377     return value != NULL && JSValueIsObject(context, value) && JSObjectIsFunction(context, (JSObjectRef) value);
 378 }
 379
 380 bool CYIsEqual(JSContextRef context, JSValueRef lhs, JSValueRef rhs) {
 381     return _jsccall(JSValueIsEqual, context, lhs, rhs);
 382 }
 383
 384 bool CYIsStrictEqual(JSContextRef context, JSValueRef lhs, JSValueRef rhs) {
 385     return JSValueIsStrictEqual(context, lhs, rhs);
 386 }
 387
 388 size_t CYArrayLength(JSContextRef context, JSObjectRef array) {
 389     return CYCastDouble(context, CYGetProperty(context, array, length_s));
 390 }
 391
 392 JSValueRef CYArrayGet(JSContextRef context, JSObjectRef array, size_t index) {
 393     return _jsccall(JSObjectGetPropertyAtIndex, context, array, index);
 394 }
 395
 396 void CYArrayPush(JSContextRef context, JSObjectRef array, size_t length, const JSValueRef arguments[]) {
 397     JSObjectRef Array(CYGetCachedObject(context, CYJSString("Array_prototype")));
 398     _jsccall(JSObjectCallAsFunction, context, CYCastJSObject(context, CYGetProperty(context, Array, push_s)), array, length, arguments);
 399 }
 400
 401 void CYArrayPush(JSContextRef context, JSObjectRef array, JSValueRef value) {
 402     return CYArrayPush(context, array, 1, &value);
 403 }
 404
 405 static JSValueRef System_print(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
 406     FILE *file(stdout);
 407
 408     if (count == 0)
 409         fputc('\n', file);
 410     else {
 411         CYPool pool;
 412         CYUTF8String string(CYPoolUTF8String(pool, context, CYJSString(context, arguments[0])));
 413         fwrite(string.data, string.size, 1, file);
 414     }
 415
 416     fflush(file);
 417     return CYJSUndefined(context);
 418 } CYCatch(NULL) }
 419
 420 static void (*JSSynchronousGarbageCollectForDebugging$)(JSContextRef);
 421
 422 _visible void CYGarbageCollect(JSContextRef context) {
 423     (JSSynchronousGarbageCollectForDebugging$ ?: &JSGarbageCollect)(context);
 424 }
 425
 426 static JSValueRef Cycript_compile_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
 427     CYPool pool;
 428     CYUTF8String before(CYPoolUTF8String(pool, context, CYJSString(context, arguments[0])));
 429     CYUTF8String after(CYPoolCode(pool, before));
 430     return CYCastJSValue(context, CYJSString(after));
 431 } CYCatch_(NULL, "SyntaxError") }
 432
 433 static JSValueRef Cycript_gc_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
 434     CYGarbageCollect(context);
 435     return CYJSUndefined(context);
 436 } CYCatch(NULL) }
 437
 438 const char *CYPoolCCYON(CYPool &pool, JSContextRef context, JSValueRef value, std::set<void *> &objects, JSValueRef *exception) { CYTry {
 439     switch (JSType type = JSValueGetType(context, value)) {
 440         case kJSTypeUndefined:
 441             return "undefined";
 442         case kJSTypeNull:
 443             return "null";
 444         case kJSTypeBoolean:
 445             return CYCastBool(context, value) ? "true" : "false";
 446
 447         case kJSTypeNumber: {
 448             std::ostringstream str;
 449             CYNumerify(str, CYCastDouble(context, value));
 450             std::string value(str.str());
 451             return pool.strmemdup(value.c_str(), value.size());
 452         } break;
 453
 454         case kJSTypeString: {
 455             std::ostringstream str;
 456             CYUTF8String string(CYPoolUTF8String(pool, context, CYJSString(context, value)));
 457             CYStringify(str, string.data, string.size);
 458             std::string value(str.str());
 459             return pool.strmemdup(value.c_str(), value.size());
 460         } break;
 461
 462         case kJSTypeObject:
 463             return CYPoolCCYON(pool, context, (JSObjectRef) value, objects);
 464         default:
 465             throw CYJSError(context, "JSValueGetType() == 0x%x", type);
 466     }
 467 } CYCatch(NULL) }
 468
 469 const char *CYPoolCCYON(CYPool &pool, JSContextRef context, JSValueRef value, std::set<void *> &objects) {
 470     return _jsccall(CYPoolCCYON, pool, context, value, objects);
 471 }
 472
 473 const char *CYPoolCCYON(CYPool &pool, JSContextRef context, JSValueRef value, std::set<void *> *objects) {
 474     if (objects != NULL)
 475         return CYPoolCCYON(pool, context, value, *objects);
 476     else {
 477         std::set<void *> objects;
 478         return CYPoolCCYON(pool, context, value, objects);
 479     }
 480 }
 481
 482 const char *CYPoolCCYON(CYPool &pool, JSContextRef context, JSObjectRef object, std::set<void *> &objects) {
 483     JSValueRef toCYON(CYGetProperty(context, object, toCYON_s));
 484     if (CYIsCallable(context, toCYON)) {
 485         // XXX: this needs to be abstracted behind some kind of function
 486         JSValueRef arguments[1] = {CYCastJSValue(context, reinterpret_cast<uintptr_t>(&objects))};
 487         JSValueRef value(CYCallAsFunction(context, (JSObjectRef) toCYON, object, 1, arguments));
 488         _assert(value != NULL);
 489         return CYPoolCString(pool, context, value);
 490     }
 491
 492     JSValueRef toJSON(CYGetProperty(context, object, toJSON_s));
 493     if (CYIsCallable(context, toJSON)) {
 494         JSValueRef arguments[1] = {CYCastJSValue(context, CYJSString(""))};
 495         return _jsccall(CYPoolCCYON, pool, context, CYCallAsFunction(context, (JSObjectRef) toJSON, object, 1, arguments), objects);
 496     }
 497
 498     if (JSObjectIsFunction(context, object)) {
 499         JSValueRef toString(CYGetProperty(context, object, toString_s));
 500         if (CYIsCallable(context, toString)) {
 501             JSValueRef arguments[1] = {CYCastJSValue(context, CYJSString(""))};
 502             JSValueRef value(CYCallAsFunction(context, (JSObjectRef) toString, object, 1, arguments));
 503             _assert(value != NULL);
 504             return CYPoolCString(pool, context, value);
 505         }
 506     }
 507
 508     _assert(objects.insert(object).second);
 509
 510     std::ostringstream str;
 511
 512     JSValueRef value(CYGetProperty(context, object, constructor_s));
 513     if (JSValueIsObject(context, value)) {
 514         JSObjectRef constructor(CYCastJSObject(context, value));
 515         JSValueRef theory(CYGetProperty(context, constructor, prototype_s));
 516         JSValueRef practice(JSObjectGetPrototype(context, object));
 517
 518         if (CYIsStrictEqual(context, theory, practice)) {
 519             JSValueRef name(CYGetProperty(context, constructor, name_s));
 520             if (!JSValueIsUndefined(context, name)) {
 521                 auto utf8(CYPoolUTF8String(pool, context, CYJSString(context, name)));
 522                 if (utf8 != "Object")
 523                     str << "new" << ' ' << utf8;
 524             }
 525         }
 526     }
 527
 528     str << '{';
 529
 530     // XXX: this is, sadly, going to leak
 531     JSPropertyNameArrayRef names(JSObjectCopyPropertyNames(context, object));
 532
 533     bool comma(false);
 534
 535     for (size_t index(0), count(JSPropertyNameArrayGetCount(names)); index != count; ++index) {
 536         if (comma)
 537             str << ',';
 538         else
 539             comma = true;
 540
 541         JSStringRef name(JSPropertyNameArrayGetNameAtIndex(names, index));
 542         CYUTF8String string(CYPoolUTF8String(pool, context, name));
 543
 544         if (CYIsKey(string))
 545             str << string.data;
 546         else
 547             CYStringify(str, string.data, string.size);
 548
 549         str << ':';
 550
 551         try {
 552             JSValueRef value(CYGetProperty(context, object, name));
 553             str << CYPoolCCYON(pool, context, value, objects);
 554         } catch (const CYException &error) {
 555             str << "@error";
 556         }
 557     }
 558
 559     JSPropertyNameArrayRelease(names);
 560
 561     str << '}';
 562
 563     std::string string(str.str());
 564     return pool.strmemdup(string.c_str(), string.size());
 565 }
 566
 567 std::set<void *> *CYCastObjects(JSContextRef context, JSObjectRef _this, size_t count, const JSValueRef arguments[]) {
 568     if (count == 0)
 569         return NULL;
 570     return CYCastPointer<std::set<void *> *>(context, arguments[0]);
 571 }
 572
 573 static JSValueRef Array_callAsFunction_toCYON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
 574     std::set<void *> *objects(CYCastObjects(context, _this, count, arguments));
 575     // XXX: this is horribly inefficient
 576     std::set<void *> backup;
 577     if (objects == NULL)
 578         objects = &backup;
 579
 580     CYPool pool;
 581     std::ostringstream str;
 582
 583     str << '[';
 584
 585     JSValueRef length(CYGetProperty(context, _this, length_s));
 586     bool comma(false);
 587
 588     for (size_t index(0), count(CYCastDouble(context, length)); index != count; ++index) {
 589         if (comma)
 590             str << ',';
 591         else
 592             comma = true;
 593
 594         try {
 595             JSValueRef value(CYGetProperty(context, _this, index));
 596             if (!JSValueIsUndefined(context, value))
 597                 str << CYPoolCCYON(pool, context, value, *objects);
 598             else {
 599                 str << ',';
 600                 comma = false;
 601             }
 602         } catch (const CYException &error) {
 603             str << "@error";
 604         }
 605     }
 606
 607     str << ']';
 608
 609     std::string value(str.str());
 610     return CYCastJSValue(context, CYJSString(CYUTF8String(value.c_str(), value.size())));
 611 } CYCatch(NULL) }
 612
 613 static JSValueRef String_callAsFunction_toCYON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
 614     CYPool pool;
 615     std::ostringstream str;
 616
 617     CYUTF8String string(CYPoolUTF8String(pool, context, CYJSString(context, _this)));
 618     CYStringify(str, string.data, string.size);
 619
 620     std::string value(str.str());
 621     return CYCastJSValue(context, CYJSString(CYUTF8String(value.c_str(), value.size())));
 622 } CYCatch(NULL) }
 623
 624 JSObjectRef CYMakePointer(JSContextRef context, void *pointer, const sig::Type &type, ffi_type *ffi, JSObjectRef owner) {
 625     return Pointer::Make(context, pointer, type, context, owner);
 626 }
 627
 628 static JSObjectRef CYMakeFunctor(JSContextRef context, void (*function)(), bool variadic, const sig::Signature &signature) {
 629     return JSObjectMake(context, Functor_, new cy::Functor(function, variadic, signature));
 630 }
 631
 632 static JSObjectRef CYMakeFunctor(JSContextRef context, const char *symbol, const char *encoding) {
 633     void (*function)()(reinterpret_cast<void (*)()>(CYCastSymbol(symbol)));
 634     if (function == NULL)
 635         return NULL;
 636
 637     cy::Functor *internal(new cy::Functor(function, encoding));
 638     ++internal->count_;
 639     return JSObjectMake(context, Functor_, internal);
 640 }
 641
 642 bool CYGetOffset(CYPool &pool, JSContextRef context, JSStringRef value, ssize_t &index) {
 643     return CYGetOffset(CYPoolCString(pool, context, value), index);
 644 }
 645
 646 void *CYCastPointer_(JSContextRef context, JSValueRef value, bool *guess) {
 647     if (value == NULL)
 648         return NULL;
 649     else switch (JSValueGetType(context, value)) {
 650         case kJSTypeNull:
 651             return NULL;
 652         case kJSTypeObject: {
 653             JSObjectRef object((JSObjectRef) value);
 654             if (JSValueIsObjectOfClass(context, value, Pointer::Class_)) {
 655                 Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(object)));
 656                 return internal->value_;
 657             }
 658             JSValueRef toPointer(CYGetProperty(context, object, toPointer_s));
 659             if (CYIsCallable(context, toPointer)) {
 660                 JSValueRef value(CYCallAsFunction(context, (JSObjectRef) toPointer, object, 0, NULL));
 661                 _assert(value != NULL);
 662                 return CYCastPointer_(context, value, guess);
 663             }
 664         } default:
 665             if (guess != NULL)
 666                 *guess = true;
 667         case kJSTypeNumber:
 668             double number(CYCastDouble(context, value));
 669             if (!std::isnan(number))
 670                 return reinterpret_cast<void *>(static_cast<uintptr_t>(static_cast<long long>(number)));
 671             if (guess == NULL)
 672                 throw CYJSError(context, "cannot convert value to pointer");
 673             else {
 674                 *guess = true;
 675                 return NULL;
 676             }
 677     }
 678 }
 679
 680 namespace sig {
 681
 682 // XXX: this is somehow not quite a template :/
 683
 684 template <>
 685 void Primitive<bool>::PoolFFI(CYPool *pool, JSContextRef context, ffi_type *ffi, void *data, JSValueRef value) const {
 686     *reinterpret_cast<bool *>(data) = JSValueToBoolean(context, value);
 687 }
 688
 689 #define CYPoolFFI_(Type_) \
 690 template <> \
 691 void Primitive<Type_>::PoolFFI(CYPool *pool, JSContextRef context, ffi_type *ffi, void *data, JSValueRef value) const { \
 692     *reinterpret_cast<Type_ *>(data) = CYCastDouble(context, value); \
 693 }
 694
 695 CYPoolFFI_(char)
 696 CYPoolFFI_(double)
 697 CYPoolFFI_(float)
 698 CYPoolFFI_(signed char)
 699 CYPoolFFI_(signed int)
 700 CYPoolFFI_(signed long int)
 701 CYPoolFFI_(signed long long int)
 702 CYPoolFFI_(signed short int)
 703 CYPoolFFI_(unsigned char)
 704 CYPoolFFI_(unsigned int)
 705 CYPoolFFI_(unsigned long int)
 706 CYPoolFFI_(unsigned long long int)
 707 CYPoolFFI_(unsigned short int)
 708
 709 #ifdef __SIZEOF_INT128__
 710 CYPoolFFI_(signed __int128)
 711 CYPoolFFI_(unsigned __int128)
 712 #endif
 713
 714 void Void::PoolFFI(CYPool *pool, JSContextRef context, ffi_type *ffi, void *data, JSValueRef value) const {
 715     _assert(false);
 716 }
 717
 718 void Unknown::PoolFFI(CYPool *pool, JSContextRef context, ffi_type *ffi, void *data, JSValueRef value) const {
 719     _assert(false);
 720 }
 721
 722 void String::PoolFFI(CYPool *pool, JSContextRef context, ffi_type *ffi, void *data, JSValueRef value) const {
 723     bool guess(false);
 724     *reinterpret_cast<const char **>(data) = CYCastPointer<const char *>(context, value, &guess);
 725     if (guess && pool != NULL)
 726         *reinterpret_cast<const char **>(data) = CYPoolCString(*pool, context, value);
 727 }
 728
 729 void Bits::PoolFFI(CYPool *pool, JSContextRef context, ffi_type *ffi, void *data, JSValueRef value) const {
 730     _assert(false);
 731 }
 732
 733 static void CYArrayCopy(CYPool *pool, JSContextRef context, uint8_t *base, size_t length, const sig::Type &type, ffi_type *ffi, JSValueRef value, JSObjectRef object) {
 734     for (size_t index(0); index != length; ++index) {
 735         JSValueRef rhs;
 736         if (object == NULL)
 737             rhs = value;
 738         else {
 739             rhs = CYGetProperty(context, object, index);
 740             if (JSValueIsUndefined(context, rhs))
 741                 throw CYJSError(context, "unable to extract array value");
 742         }
 743
 744         type.PoolFFI(pool, context, ffi, base, rhs);
 745         base += ffi->size;
 746     }
 747 }
 748
 749 void Pointer::PoolFFI(CYPool *pool, JSContextRef context, ffi_type *ffi, void *data, JSValueRef value) const {
 750     bool guess(false);
 751     *reinterpret_cast<void **>(data) = CYCastPointer<void *>(context, value, &guess);
 752     if (!guess || pool == NULL || !JSValueIsObject(context, value))
 753         return;
 754     JSObjectRef object(CYCastJSObject(context, value));
 755     if (CYHasProperty(context, object, length_s)) {
 756         size_t length(CYArrayLength(context, object));
 757         ffi_type *element(type.GetFFI(*pool));
 758         size_t size(element->size * length);
 759         uint8_t *base(pool->malloc<uint8_t>(size, element->alignment));
 760         CYArrayCopy(pool, context, base, length, type, element, value, object);
 761         *reinterpret_cast<void **>(data) = base;
 762     }
 763 }
 764
 765 void Array::PoolFFI(CYPool *pool, JSContextRef context, ffi_type *ffi, void *data, JSValueRef value) const {
 766     if (size == 0)
 767         return;
 768     uint8_t *base(reinterpret_cast<uint8_t *>(data));
 769     JSObjectRef object(JSValueIsObject(context, value) ? (JSObjectRef) value : NULL);
 770     CYArrayCopy(pool, context, base, size, type, ffi->elements[0], value, object);
 771 }
 772
 773 void Aggregate::PoolFFI(CYPool *pool, JSContextRef context, ffi_type *ffi, void *data, JSValueRef value) const {
 774     _assert(!overlap);
 775
 776     size_t offset(0);
 777     uint8_t *base(reinterpret_cast<uint8_t *>(data));
 778     JSObjectRef aggregate(JSValueIsObject(context, value) ? (JSObjectRef) value : NULL);
 779     for (size_t index(0); index != signature.count; ++index) {
 780         sig::Element *element(&signature.elements[index]);
 781         ffi_type *field(ffi->elements[index]);
 782
 783         JSValueRef rhs;
 784         if (aggregate == NULL)
 785             rhs = value;
 786         else {
 787             rhs = CYGetProperty(context, aggregate, index);
 788             if (JSValueIsUndefined(context, rhs)) {
 789                 if (element->name != NULL)
 790                     rhs = CYGetProperty(context, aggregate, CYJSString(element->name));
 791                 else
 792                     goto undefined;
 793                 if (JSValueIsUndefined(context, rhs)) undefined:
 794                     throw CYJSError(context, "unable to extract structure value");
 795             }
 796         }
 797
 798         element->type->PoolFFI(pool, context, field, base + offset, rhs);
 799         offset += field->size;
 800         CYAlign(offset, field->alignment);
 801     }
 802 }
 803
 804 void Function::PoolFFI(CYPool *pool, JSContextRef context, ffi_type *ffi, void *data, JSValueRef value) const {
 805     _assert(false);
 806 }
 807
 808 #define CYFromFFI_(Type_) \
 809 template <> \
 810 JSValueRef Primitive<Type_>::FromFFI(JSContextRef context, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) const { \
 811     return CYCastJSValue(context, *reinterpret_cast<Type_ *>(data)); \
 812 }
 813
 814 CYFromFFI_(bool)
 815 CYFromFFI_(char)
 816 CYFromFFI_(double)
 817 CYFromFFI_(float)
 818 CYFromFFI_(signed char)
 819 CYFromFFI_(signed int)
 820 CYFromFFI_(signed long int)
 821 CYFromFFI_(signed long long int)
 822 CYFromFFI_(signed short int)
 823 CYFromFFI_(unsigned char)
 824 CYFromFFI_(unsigned int)
 825 CYFromFFI_(unsigned long int)
 826 CYFromFFI_(unsigned long long int)
 827 CYFromFFI_(unsigned short int)
 828
 829 #ifdef __SIZEOF_INT128__
 830 CYFromFFI_(signed __int128)
 831 CYFromFFI_(unsigned __int128)
 832 #endif
 833
 834 JSValueRef Void::FromFFI(JSContextRef context, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) const {
 835     return CYJSUndefined(context);
 836 }
 837
 838 JSValueRef Unknown::FromFFI(JSContextRef context, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) const {
 839     _assert(false);
 840 }
 841
 842 JSValueRef String::FromFFI(JSContextRef context, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) const {
 843     if (char *value = *reinterpret_cast<char **>(data))
 844         return CString::Make(context, value, context, owner);
 845     return CYJSNull(context);
 846 }
 847
 848 JSValueRef Bits::FromFFI(JSContextRef context, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) const {
 849     _assert(false);
 850 }
 851
 852 JSValueRef Pointer::FromFFI(JSContextRef context, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) const {
 853     if (void *value = *reinterpret_cast<void **>(data))
 854         return CYMakePointer(context, value, type, NULL, owner);
 855     return CYJSNull(context);
 856 }
 857
 858 JSValueRef Array::FromFFI(JSContextRef context, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) const {
 859     return CArray::Make(context, data, size, type, ffi->elements[0], context, owner);
 860 }
 861
 862 JSValueRef Aggregate::FromFFI(JSContextRef context, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) const {
 863     return Struct_privateData::Make(context, data, *this, ffi, context, owner);
 864 }
 865
 866 JSValueRef Function::FromFFI(JSContextRef context, ffi_type *ffi, void *data, bool initialize, JSObjectRef owner) const {
 867     return CYMakeFunctor(context, reinterpret_cast<void (*)()>(data), variadic, signature);
 868 }
 869
 870 }
 871
 872 void CYExecuteClosure(ffi_cif *cif, void *result, void **arguments, void *arg) {
 873     Closure_privateData *internal(reinterpret_cast<Closure_privateData *>(arg));
 874
 875     JSContextRef context(internal->function_);
 876
 877     size_t count(internal->cif_.nargs);
 878     JSValueRef values[count];
 879
 880     for (size_t index(0); index != count; ++index)
 881         values[index] = internal->signature_.elements[1 + index].type->FromFFI(context, internal->cif_.arg_types[index], arguments[index]);
 882
 883     JSValueRef value(internal->adapter_(context, count, values, internal->function_));
 884     if (internal->cif_.rtype != &ffi_type_void)
 885         internal->signature_.elements[0].type->PoolFFI(NULL, context, internal->cif_.rtype, result, value);
 886 }
 887
 888 static JSValueRef FunctionAdapter_(JSContextRef context, size_t count, JSValueRef values[], JSObjectRef function) {
 889     return CYCallAsFunction(context, function, NULL, count, values);
 890 }
 891
 892 #if defined(__APPLE__) && (defined(__arm__) || defined(__arm64__))
 893 static void CYFreeFunctor(void *data) {
 894     ffi_closure_free(data);
 895 }
 896 #else
 897 static void CYFreeFunctor(void *data) {
 898     _syscall(munmap(data, sizeof(ffi_closure)));
 899 }
 900 #endif
 901
 902 Closure_privateData *CYMakeFunctor_(JSContextRef context, JSObjectRef function, const sig::Signature &signature, JSValueRef (*adapter)(JSContextRef, size_t, JSValueRef[], JSObjectRef)) {
 903     // XXX: in case of exceptions this will leak
 904     Closure_privateData *internal(new Closure_privateData(context, function, adapter, signature));
 905
 906 #if defined(__APPLE__) && (defined(__arm__) || defined(__arm64__))
 907     void *executable;
 908     ffi_closure *writable(reinterpret_cast<ffi_closure *>(ffi_closure_alloc(sizeof(ffi_closure), &executable)));
 909
 910     ffi_status status(ffi_prep_closure_loc(writable, &internal->cif_, &CYExecuteClosure, internal, executable));
 911     _assert(status == FFI_OK);
 912
 913     internal->pool_->atexit(&CYFreeFunctor, writable);
 914     internal->value_ = reinterpret_cast<void (*)()>(executable);
 915 #else
 916     ffi_closure *closure((ffi_closure *) _syscall(mmap(
 917         NULL, sizeof(ffi_closure),
 918         PROT_READ | PROT_WRITE, MAP_ANON | MAP_PRIVATE,
 919         -1, 0
 920     )));
 921
 922     ffi_status status(ffi_prep_closure(closure, &internal->cif_, &CYExecuteClosure, internal));
 923     _assert(status == FFI_OK);
 924
 925     _syscall(mprotect(closure, sizeof(*closure), PROT_READ | PROT_EXEC));
 926
 927     internal->pool_->atexit(&CYFreeFunctor, closure);
 928     internal->value_ = reinterpret_cast<void (*)()>(closure);
 929 #endif
 930
 931     return internal;
 932 }
 933
 934 static JSObjectRef CYMakeFunctor(JSContextRef context, JSObjectRef function, const sig::Signature &signature) {
 935     Closure_privateData *internal(CYMakeFunctor_(context, function, signature, &FunctionAdapter_));
 936     JSObjectRef object(JSObjectMake(context, Functor_, internal));
 937     // XXX: see above notes about needing to leak
 938     JSValueProtect(CYGetJSContext(context), object);
 939     return object;
 940 }
 941
 942 JSValueRef CYGetCachedValue(JSContextRef context, JSStringRef name) {
 943     return CYGetProperty(context, CYCastJSObject(context, CYGetProperty(context, CYGetGlobalObject(context), cy_s)), name);
 944 }
 945
 946 JSObjectRef CYGetCachedObject(JSContextRef context, JSStringRef name) {
 947     return CYCastJSObject(context, CYGetCachedValue(context, name));
 948 }
 949
 950 static JSObjectRef CYMakeFunctor(JSContextRef context, JSValueRef value, bool variadic, const sig::Signature &signature) {
 951     JSObjectRef Function(CYGetCachedObject(context, CYJSString("Function")));
 952
 953     bool function(_jsccall(JSValueIsInstanceOfConstructor, context, value, Function));
 954     if (function) {
 955         JSObjectRef function(CYCastJSObject(context, value));
 956         return CYMakeFunctor(context, function, signature);
 957     } else {
 958         void (*function)()(CYCastPointer<void (*)()>(context, value));
 959         return CYMakeFunctor(context, function, variadic, signature);
 960     }
 961 }
 962
 963 static JSValueRef CString_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
 964     CYPool pool;
 965     CString *internal(reinterpret_cast<CString *>(JSObjectGetPrivate(object)));
 966
 967     ssize_t offset;
 968     if (!CYGetOffset(pool, context, property, offset))
 969         return NULL;
 970
 971     return CYCastJSValue(context, CYJSString(CYUTF8String(&internal->value_[offset], 1)));
 972 } CYCatch(NULL) }
 973
 974 static bool CString_setProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef value, JSValueRef *exception) { CYTry {
 975     CYPool pool;
 976     CString *internal(reinterpret_cast<CString *>(JSObjectGetPrivate(object)));
 977
 978     ssize_t offset;
 979     if (!CYGetOffset(pool, context, property, offset))
 980         return false;
 981
 982     const char *data(CYPoolCString(pool, context, value));
 983     internal->value_[offset] = *data;
 984     return true;
 985 } CYCatch(false) }
 986
 987 static bool Index_(CYPool &pool, JSContextRef context, Struct_privateData *internal, JSStringRef property, ssize_t &index, uint8_t *&base) {
 988     Type_privateData *typical(internal->type_);
 989     sig::Aggregate *type(static_cast<sig::Aggregate *>(typical->type_));
 990     if (type == NULL)
 991         return false;
 992
 993     const char *name(CYPoolCString(pool, context, property));
 994     size_t length(strlen(name));
 995     double number(CYCastDouble(name, length));
 996
 997     size_t count(type->signature.count);
 998
 999     if (std::isnan(number)) {
1000         if (property == NULL)
1001             return false;
1002
1003         sig::Element *elements(type->signature.elements);
1004
1005         for (size_t local(0); local != count; ++local) {
1006             sig::Element *element(&elements[local]);
1007             if (element->name != NULL && strcmp(name, element->name) == 0) {
1008                 index = local;
1009                 goto base;
1010             }
1011         }
1012
1013         return false;
1014     } else {
1015         index = static_cast<ssize_t>(number);
1016         if (index != number || index < 0 || static_cast<size_t>(index) >= count)
1017             return false;
1018     }
1019
1020   base:
1021     ffi_type **elements(typical->GetFFI()->elements);
1022
1023     size_t offset(0);
1024     for (ssize_t local(0); local != index; ++local) {
1025         offset += elements[local]->size;
1026         CYAlign(offset, elements[local + 1]->alignment);
1027     }
1028
1029     base = reinterpret_cast<uint8_t *>(internal->value_) + offset;
1030     return true;
1031 }
1032
1033 static void *Offset_(CYPool &pool, JSContextRef context, JSStringRef property, void *data, ffi_type *ffi) {
1034     ssize_t offset;
1035     if (JSStringIsEqualToUTF8CString(property, "$cyi"))
1036         offset = 0;
1037     else if (!CYGetOffset(pool, context, property, offset))
1038         return NULL;
1039     return reinterpret_cast<uint8_t *>(data) + ffi->size * offset;
1040 }
1041
1042 static JSValueRef Offset_getProperty(CYPool &pool, JSContextRef context, JSStringRef property, void *data, Type_privateData *typical, JSObjectRef owner) {
1043     ffi_type *ffi(typical->GetFFI());
1044     void *base(Offset_(pool, context, property, data, ffi));
1045     if (base == NULL)
1046         return NULL;
1047     return typical->type_->FromFFI(context, ffi, base, false, owner);
1048 }
1049
1050 static bool Offset_setProperty(CYPool &pool, JSContextRef context, JSStringRef property, void *data, Type_privateData *typical, JSValueRef value) {
1051     ffi_type *ffi(typical->GetFFI());
1052     void *base(Offset_(pool, context, property, data, ffi));
1053     if (base == NULL)
1054         return false;
1055
1056     typical->type_->PoolFFI(NULL, context, ffi, base, value);
1057     return true;
1058 }
1059
1060 static JSValueRef CArray_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1061     CYPool pool;
1062     CArray *internal(reinterpret_cast<CArray *>(JSObjectGetPrivate(object)));
1063     if (JSStringIsEqual(property, length_s))
1064         return CYCastJSValue(context, internal->length_);
1065     Type_privateData *typical(internal->type_);
1066     JSObjectRef owner(internal->owner_ ?: object);
1067     return Offset_getProperty(pool, context, property, internal->value_, typical, owner);
1068 } CYCatch(NULL) }
1069
1070 static bool CArray_setProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef value, JSValueRef *exception) { CYTry {
1071     CYPool pool;
1072     Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(object)));
1073     Type_privateData *typical(internal->type_);
1074     return Offset_setProperty(pool, context, property, internal->value_, typical, value);
1075 } CYCatch(false) }
1076
1077 static JSValueRef Pointer_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1078     CYPool pool;
1079     Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(object)));
1080
1081     Type_privateData *typical(internal->type_);
1082
1083     if (sig::Function *function = dynamic_cast<sig::Function *>(typical->type_)) {
1084         if (!JSStringIsEqualToUTF8CString(property, "$cyi"))
1085             return NULL;
1086         return CYMakeFunctor(context, reinterpret_cast<void (*)()>(internal->value_), function->variadic, function->signature);
1087     }
1088
1089     JSObjectRef owner(internal->owner_ ?: object);
1090     return Offset_getProperty(pool, context, property, internal->value_, typical, owner);
1091 } CYCatch(NULL) }
1092
1093 static bool Pointer_setProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef value, JSValueRef *exception) { CYTry {
1094     CYPool pool;
1095     Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(object)));
1096     Type_privateData *typical(internal->type_);
1097     return Offset_setProperty(pool, context, property, internal->value_, typical, value);
1098 } CYCatch(false) }
1099
1100 static JSValueRef Struct_callAsFunction_$cya(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1101     Struct_privateData *internal(reinterpret_cast<Struct_privateData *>(JSObjectGetPrivate(_this)));
1102     Type_privateData *typical(internal->type_);
1103     return CYMakePointer(context, internal->value_, *typical->type_, typical->ffi_, _this);
1104 } CYCatch(NULL) }
1105
1106 static JSValueRef Struct_getProperty_$cyt(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1107     Struct_privateData *internal(reinterpret_cast<Struct_privateData *>(JSObjectGetPrivate(object)));
1108     return CYMakeType(context, *internal->type_->type_);
1109 } CYCatch(NULL) }
1110
1111 static JSValueRef Struct_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1112     CYPool pool;
1113     Struct_privateData *internal(reinterpret_cast<Struct_privateData *>(JSObjectGetPrivate(object)));
1114     Type_privateData *typical(internal->type_);
1115     sig::Aggregate *type(static_cast<sig::Aggregate *>(typical->type_));
1116
1117     ssize_t index;
1118     uint8_t *base;
1119
1120     if (!Index_(pool, context, internal, property, index, base))
1121         return NULL;
1122
1123     JSObjectRef owner(internal->owner_ ?: object);
1124
1125     return type->signature.elements[index].type->FromFFI(context, typical->GetFFI()->elements[index], base, false, owner);
1126 } CYCatch(NULL) }
1127
1128 static bool Struct_setProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef value, JSValueRef *exception) { CYTry {
1129     CYPool pool;
1130     Struct_privateData *internal(reinterpret_cast<Struct_privateData *>(JSObjectGetPrivate(object)));
1131     Type_privateData *typical(internal->type_);
1132     sig::Aggregate *type(static_cast<sig::Aggregate *>(typical->type_));
1133
1134     ssize_t index;
1135     uint8_t *base;
1136
1137     if (!Index_(pool, context, internal, property, index, base))
1138         return false;
1139
1140     type->signature.elements[index].type->PoolFFI(NULL, context, typical->GetFFI()->elements[index], base, value);
1141     return true;
1142 } CYCatch(false) }
1143
1144 static void Struct_getPropertyNames(JSContextRef context, JSObjectRef object, JSPropertyNameAccumulatorRef names) {
1145     Struct_privateData *internal(reinterpret_cast<Struct_privateData *>(JSObjectGetPrivate(object)));
1146     Type_privateData *typical(internal->type_);
1147     sig::Aggregate *type(static_cast<sig::Aggregate *>(typical->type_));
1148
1149     if (type == NULL)
1150         return;
1151
1152     size_t count(type->signature.count);
1153     sig::Element *elements(type->signature.elements);
1154
1155     char number[32];
1156
1157     for (size_t index(0); index != count; ++index) {
1158         const char *name;
1159         name = elements[index].name;
1160
1161         if (name == NULL) {
1162             sprintf(number, "%zu", index);
1163             name = number;
1164         }
1165
1166         JSPropertyNameAccumulatorAddName(names, CYJSString(name));
1167     }
1168 }
1169
1170 static sig::Void Void_;
1171 static sig::Pointer PointerToVoid_(Void_);
1172
1173 static sig::Type *CYGetType(CYPool &pool, JSContextRef context, JSValueRef value) {
1174     if (JSValueIsNull(context, value))
1175         return &PointerToVoid_;
1176     JSObjectRef object(CYCastJSObject(context, value));
1177     JSObjectRef type(CYCastJSObject(context, CYGetProperty(context, object, cyt_s)));
1178     _assert(JSValueIsObjectOfClass(context, type, Type_privateData::Class_));
1179     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(type)));
1180     return internal->type_;
1181 }
1182
1183 void CYCallFunction(CYPool &pool, JSContextRef context, ffi_cif *cif, void (*function)(), void *value, void **values) {
1184     ffi_call(cif, function, value, values);
1185 }
1186
1187 JSValueRef CYCallFunction(CYPool &pool, JSContextRef context, size_t setups, void *setup[], size_t count, const JSValueRef arguments[], bool initialize, bool variadic, const sig::Signature &signature, ffi_cif *cif, void (*function)()) {
1188     size_t have(setups + count);
1189     size_t need(signature.count - 1);
1190
1191     if (have < need)
1192         throw CYJSError(context, "insufficient number of arguments to ffi function");
1193
1194     ffi_cif corrected;
1195     sig::Element *elements(signature.elements);
1196
1197     if (have > need) {
1198         if (!variadic)
1199             throw CYJSError(context, "exorbitant number of arguments to ffi function");
1200
1201         elements = new (pool) sig::Element[have + 1];
1202         memcpy(elements, signature.elements, sizeof(sig::Element) * (need + 1));
1203
1204         for (size_t index(need); index != have; ++index) {
1205             sig::Element &element(elements[index + 1]);
1206             element.name = NULL;
1207             element.offset = _not(size_t);
1208             element.type = CYGetType(pool, context, arguments[index - setups]);
1209         }
1210
1211         sig::Signature extended;
1212         extended.elements = elements;
1213         extended.count = have + 1;
1214         sig::sig_ffi_cif(pool, signature.count, extended, &corrected);
1215         cif = &corrected;
1216     }
1217
1218     void *values[have];
1219     memcpy(values, setup, sizeof(void *) * setups);
1220
1221     for (size_t index(setups); index != have; ++index) {
1222         sig::Element &element(elements[index + 1]);
1223         ffi_type *ffi(cif->arg_types[index]);
1224         values[index] = pool.malloc<uint8_t>(ffi->size, ffi->alignment);
1225         element.type->PoolFFI(&pool, context, ffi, values[index], arguments[index - setups]);
1226     }
1227
1228     uint8_t value[cif->rtype->size];
1229
1230     void (*call)(CYPool &, JSContextRef, ffi_cif *, void (*)(), void *, void **) = &CYCallFunction;
1231     // XXX: this only supports one hook, but it is a bad idea anyway
1232     for (CYHook *hook : GetHooks())
1233         if (hook->CallFunction != NULL)
1234             call = hook->CallFunction;
1235
1236     call(pool, context, cif, function, value, values);
1237     return signature.elements[0].type->FromFFI(context, cif->rtype, value, initialize);
1238 }
1239
1240 static JSValueRef Functor_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1241     CYPool pool;
1242     cy::Functor *internal(reinterpret_cast<cy::Functor *>(JSObjectGetPrivate(object)));
1243     return CYCallFunction(pool, context, 0, NULL, count, arguments, false, internal->variadic_, internal->signature_, &internal->cif_, internal->value_);
1244 } CYCatch(NULL) }
1245
1246 static JSValueRef Pointer_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1247     Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(object)));
1248     if (dynamic_cast<sig::Function *>(internal->type_->type_) == NULL)
1249         throw CYJSError(context, "cannot call a pointer to non-function");
1250     JSObjectRef functor(CYCastJSObject(context, CYGetProperty(context, object, cyi_s)));
1251     return CYCallAsFunction(context, functor, _this, count, arguments);
1252 } CYCatch(NULL) }
1253
1254 JSObjectRef CYMakeType(JSContextRef context, const sig::Type &type) {
1255     return Type_privateData::Make(context, type);
1256 }
1257
1258 extern "C" bool CYBridgeHash(CYPool &pool, CYUTF8String name, const char *&code, unsigned &flags) {
1259     sqlite3_stmt *statement;
1260
1261     _sqlcall(sqlite3_prepare(database_,
1262         "select "
1263             "\"cache\".\"code\", "
1264             "\"cache\".\"flags\" "
1265         "from \"cache\" "
1266         "where"
1267             " \"cache\".\"system\" & " CY_SYSTEM " == " CY_SYSTEM " and"
1268             " \"cache\".\"name\" = ?"
1269         " limit 1"
1270     , -1, &statement, NULL));
1271
1272     _sqlcall(sqlite3_bind_text(statement, 1, name.data, name.size, SQLITE_STATIC));
1273
1274     bool success;
1275     if (_sqlcall(sqlite3_step(statement)) == SQLITE_DONE)
1276         success = false;
1277     else {
1278         success = true;
1279         code = sqlite3_column_pooled(pool, statement, 0);
1280         flags = sqlite3_column_int(statement, 1);
1281     }
1282
1283     _sqlcall(sqlite3_finalize(statement));
1284     return success;
1285 }
1286
1287 static bool All_hasProperty(JSContextRef context, JSObjectRef object, JSStringRef property) {
1288     if (JSStringIsEqualToUTF8CString(property, "errno"))
1289         return true;
1290
1291     JSObjectRef global(CYGetGlobalObject(context));
1292     JSObjectRef cycript(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Cycript"))));
1293     JSObjectRef alls(CYCastJSObject(context, CYGetProperty(context, cycript, CYJSString("alls"))));
1294
1295     for (size_t i(0), count(CYArrayLength(context, alls)); i != count; ++i)
1296         if (JSObjectRef space = CYCastJSObject(context, CYArrayGet(context, alls, count - i - 1)))
1297             if (CYHasProperty(context, space, property))
1298                 return true;
1299
1300     CYPool pool;
1301     const char *code;
1302     unsigned flags;
1303     if (CYBridgeHash(pool, CYPoolUTF8String(pool, context, property), code, flags))
1304         return true;
1305
1306     return false;
1307 }
1308
1309 static JSValueRef All_getProperty(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1310     if (JSStringIsEqualToUTF8CString(property, "errno"))
1311         return CYCastJSValue(context, errno);
1312
1313     JSObjectRef global(CYGetGlobalObject(context));
1314     JSObjectRef cycript(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Cycript"))));
1315     JSObjectRef alls(CYCastJSObject(context, CYGetProperty(context, cycript, CYJSString("alls"))));
1316
1317     for (size_t i(0), count(CYArrayLength(context, alls)); i != count; ++i)
1318         if (JSObjectRef space = CYCastJSObject(context, CYArrayGet(context, alls, count - i - 1)))
1319             if (JSValueRef value = CYGetProperty(context, space, property))
1320                 if (!JSValueIsUndefined(context, value))
1321                     return value;
1322
1323     CYPool pool;
1324     const char *code;
1325     unsigned flags;
1326     if (CYBridgeHash(pool, CYPoolUTF8String(pool, context, property), code, flags)) {
1327         CYUTF8String parsed;
1328
1329         try {
1330             parsed = CYPoolCode(pool, code);
1331         } catch (const CYException &error) {
1332             CYThrow("%s", pool.strcat("error caching ", CYPoolCString(pool, context, property), ": ", error.PoolCString(pool), NULL));
1333         }
1334
1335         JSValueRef result(_jsccall(JSEvaluateScript, context, CYJSString(parsed), NULL, NULL, 0));
1336
1337         if (flags == 0) {
1338             JSObjectRef cache(CYGetCachedObject(context, CYJSString("cache")));
1339             CYSetProperty(context, cache, property, result);
1340         }
1341
1342         return result;
1343     }
1344
1345     return NULL;
1346 } CYCatch(NULL) }
1347
1348 static JSValueRef All_complete_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1349     _assert(count == 1);
1350     CYPool pool;
1351     CYUTF8String prefix(CYPoolUTF8String(pool, context, CYJSString(context, arguments[0])));
1352
1353     JSObjectRef array(NULL);
1354
1355     {
1356     CYArrayBuilder<1024> values(context, array);
1357
1358     sqlite3_stmt *statement;
1359
1360     if (prefix.size == 0)
1361         _sqlcall(sqlite3_prepare(database_,
1362             "select "
1363                 "\"cache\".\"name\" "
1364             "from \"cache\" "
1365             "where"
1366                 " \"cache\".\"system\" & " CY_SYSTEM " == " CY_SYSTEM
1367         , -1, &statement, NULL));
1368     else {
1369         _sqlcall(sqlite3_prepare(database_,
1370             "select "
1371                 "\"cache\".\"name\" "
1372             "from \"cache\" "
1373             "where"
1374                 " \"cache\".\"name\" >= ? and \"cache\".\"name\" < ? and "
1375                 " \"cache\".\"system\" & " CY_SYSTEM " == " CY_SYSTEM
1376         , -1, &statement, NULL));
1377
1378         _sqlcall(sqlite3_bind_text(statement, 1, prefix.data, prefix.size, SQLITE_STATIC));
1379
1380         char *after(pool.strndup(prefix.data, prefix.size));
1381         ++after[prefix.size - 1];
1382         _sqlcall(sqlite3_bind_text(statement, 2, after, prefix.size, SQLITE_STATIC));
1383     }
1384
1385     while (_sqlcall(sqlite3_step(statement)) != SQLITE_DONE)
1386         values(CYCastJSValue(context, CYJSString(sqlite3_column_string(statement, 0))));
1387
1388     _sqlcall(sqlite3_finalize(statement));
1389     }
1390
1391     return array;
1392 } CYCatch(NULL) }
1393
1394 static void All_getPropertyNames(JSContextRef context, JSObjectRef object, JSPropertyNameAccumulatorRef names) {
1395     JSObjectRef global(CYGetGlobalObject(context));
1396     JSObjectRef cycript(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Cycript"))));
1397     JSObjectRef alls(CYCastJSObject(context, CYGetProperty(context, cycript, CYJSString("alls"))));
1398
1399     for (size_t i(0), count(CYArrayLength(context, alls)); i != count; ++i)
1400         if (JSObjectRef space = CYCastJSObject(context, CYArrayGet(context, alls, count - i - 1))) {
1401             JSPropertyNameArrayRef subset(JSObjectCopyPropertyNames(context, space));
1402             for (size_t index(0), count(JSPropertyNameArrayGetCount(subset)); index != count; ++index)
1403                 JSPropertyNameAccumulatorAddName(names, JSPropertyNameArrayGetNameAtIndex(subset, index));
1404             JSPropertyNameArrayRelease(subset);
1405         }
1406 }
1407
1408 static JSObjectRef CArray_new(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1409     _assert(false);
1410 } CYCatch(NULL) }
1411
1412 static JSObjectRef CString_new(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1413     _assert(false);
1414 } CYCatch(NULL) }
1415
1416 static JSObjectRef Pointer_new(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1417     _assert(false);
1418 } CYCatch(NULL) }
1419
1420 static JSObjectRef Type_new(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1421     CYPool pool;
1422
1423     if (false) {
1424     } else if (count == 1) {
1425         const char *encoding(CYPoolCString(pool, context, arguments[0]));
1426         sig::Signature signature;
1427         sig::Parse(pool, &signature, encoding, &Structor_);
1428         return CYMakeType(context, *signature.elements[0].type);
1429     } else if (count == 2) {
1430         JSObjectRef types(CYCastJSObject(context, arguments[0]));
1431         size_t count(CYArrayLength(context, types));
1432
1433         JSObjectRef names(CYCastJSObject(context, arguments[1]));
1434
1435         sig::Aggregate type(false);
1436         type.signature.elements = new(pool) sig::Element[count];
1437         type.signature.count = count;
1438
1439         for (size_t i(0); i != count; ++i) {
1440             sig::Element &element(type.signature.elements[i]);
1441             element.offset = _not(size_t);
1442
1443             JSValueRef name(CYArrayGet(context, names, i));
1444             if (JSValueIsUndefined(context, name))
1445                 element.name = NULL;
1446             else
1447                 element.name = CYPoolCString(pool, context, name);
1448
1449             JSObjectRef object(CYCastJSObject(context, CYArrayGet(context, types, i)));
1450             _assert(JSValueIsObjectOfClass(context, object, Type_privateData::Class_));
1451             Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
1452             element.type = internal->type_;
1453         }
1454
1455         return CYMakeType(context, type);
1456     } else {
1457         throw CYJSError(context, "incorrect number of arguments to Type constructor");
1458     }
1459 } CYCatch(NULL) }
1460
1461 static JSValueRef Type_callAsFunction_$With(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], sig::Callable &type, JSValueRef *exception) { CYTry {
1462     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1463
1464     CYPool pool;
1465
1466     type.signature.elements = new(pool) sig::Element[1 + count];
1467     type.signature.count = 1 + count;
1468
1469     type.signature.elements[0].name = NULL;
1470     type.signature.elements[0].type = internal->type_;
1471     type.signature.elements[0].offset = _not(size_t);
1472
1473     for (size_t i(0); i != count; ++i) {
1474         sig::Element &element(type.signature.elements[i + 1]);
1475         element.name = NULL;
1476         element.offset = _not(size_t);
1477
1478         JSObjectRef object(CYCastJSObject(context, arguments[i]));
1479         _assert(JSValueIsObjectOfClass(context, object, Type_privateData::Class_));
1480         Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
1481
1482         element.type = internal->type_;
1483     }
1484
1485     return CYMakeType(context, type);
1486 } CYCatch(NULL) }
1487
1488 static JSValueRef Type_callAsFunction_arrayOf(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1489     if (count != 1)
1490         throw CYJSError(context, "incorrect number of arguments to Type.arrayOf");
1491     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1492
1493     CYPool pool;
1494     size_t index(CYGetIndex(pool, context, CYJSString(context, arguments[0])));
1495     if (index == _not(size_t))
1496         throw CYJSError(context, "invalid array size used with Type.arrayOf");
1497
1498     sig::Array type(*internal->type_, index);
1499     return CYMakeType(context, type);
1500 } CYCatch(NULL) }
1501
1502 static JSValueRef Type_callAsFunction_blockWith(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
1503 #ifdef CY_OBJECTIVEC
1504     sig::Block type;
1505     return Type_callAsFunction_$With(context, object, _this, count, arguments, type, exception);
1506 #else
1507     _assert(false);
1508 #endif
1509 }
1510
1511 static JSValueRef Type_callAsFunction_constant(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1512     if (count != 0)
1513         throw CYJSError(context, "incorrect number of arguments to Type.constant");
1514     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1515
1516     CYPool pool;
1517     sig::Type *type(internal->type_->Copy(pool));
1518     type->flags |= JOC_TYPE_CONST;
1519     return CYMakeType(context, *type);
1520 } CYCatch(NULL) }
1521
1522 static JSValueRef Type_callAsFunction_functionWith(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) {
1523     bool variadic(count != 0 && JSValueIsNull(context, arguments[count - 1]));
1524     sig::Function type(variadic);
1525     return Type_callAsFunction_$With(context, object, _this, variadic ? count - 1 : count, arguments, type, exception);
1526 }
1527
1528 static JSValueRef Type_callAsFunction_pointerTo(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1529     if (count != 0)
1530         throw CYJSError(context, "incorrect number of arguments to Type.pointerTo");
1531     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1532
1533     if (dynamic_cast<sig::Primitive<char> *>(internal->type_) != NULL)
1534         return CYMakeType(context, sig::String());
1535     else
1536         return CYMakeType(context, sig::Pointer(*internal->type_));
1537 } CYCatch(NULL) }
1538
1539 static JSValueRef Type_callAsFunction_withName(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1540     if (count != 1)
1541         throw CYJSError(context, "incorrect number of arguments to Type.withName");
1542     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1543
1544     CYPool pool;
1545     return CYMakeType(context, *internal->type_->Copy(pool, CYPoolCString(pool, context, arguments[0])));
1546 } CYCatch(NULL) }
1547
1548 static JSValueRef Type_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1549     if (count != 1)
1550         throw CYJSError(context, "incorrect number of arguments to type cast function");
1551     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
1552
1553     if (sig::Function *function = dynamic_cast<sig::Function *>(internal->type_))
1554         return CYMakeFunctor(context, arguments[0], function->variadic, function->signature);
1555
1556     CYPool pool;
1557
1558     sig::Type *type(internal->type_);
1559     ffi_type *ffi(internal->GetFFI());
1560     void *data(pool.malloc<void>(ffi->size, ffi->alignment));
1561
1562     type->PoolFFI(&pool, context, ffi, data, arguments[0]);
1563     JSValueRef value(type->FromFFI(context, ffi, data));
1564
1565     if (JSValueGetType(context, value) == kJSTypeNumber) {
1566         JSObjectRef typed(_jsccall(JSObjectCallAsConstructor, context, CYGetCachedObject(context, CYJSString("Number")), 1, &value));
1567         CYSetProperty(context, typed, cyt_s, object, kJSPropertyAttributeDontEnum);
1568         value = typed;
1569     }
1570
1571     return value;
1572 } CYCatch(NULL) }
1573
1574 static JSObjectRef Type_callAsConstructor(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1575     if (count > 1)
1576         throw CYJSError(context, "incorrect number of arguments to Type allocator");
1577     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
1578
1579     JSObjectRef pointer(CYMakePointer(context, NULL, *internal->type_, NULL, NULL));
1580     Pointer *value(reinterpret_cast<Pointer *>(JSObjectGetPrivate(pointer)));
1581
1582     sig::Type *type(internal->type_);
1583     ffi_type *ffi(internal->GetFFI());
1584     value->value_ = value->pool_->malloc<void>(ffi->size, ffi->alignment);
1585
1586     if (count == 0)
1587         memset(value->value_, 0, ffi->size);
1588     else
1589         type->PoolFFI(value->pool_, context, ffi, value->value_, arguments[0]);
1590
1591     return pointer;
1592 } CYCatch(NULL) }
1593
1594 static JSObjectRef Functor_new(JSContextRef context, JSObjectRef object, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1595     if (count != 2)
1596         throw CYJSError(context, "incorrect number of arguments to Functor constructor");
1597     CYPool pool;
1598     const char *encoding(CYPoolCString(pool, context, arguments[1]));
1599     sig::Signature signature;
1600     sig::Parse(pool, &signature, encoding, &Structor_);
1601     return CYMakeFunctor(context, arguments[0], false, signature);
1602 } CYCatch(NULL) }
1603
1604 static JSValueRef CArray_callAsFunction_toPointer(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1605     CArray *internal(reinterpret_cast<CArray *>(JSObjectGetPrivate(_this)));
1606     JSObjectRef owner(internal->owner_ ?: object);
1607     return CYMakePointer(context, internal->value_, *internal->type_->type_, NULL, owner);
1608 } CYCatch(NULL) }
1609
1610 static JSValueRef CString_callAsFunction_toPointer(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1611     CString *internal(reinterpret_cast<CString *>(JSObjectGetPrivate(_this)));
1612     JSObjectRef owner(internal->owner_ ?: object);
1613     return CYMakePointer(context, internal->value_, sig::Primitive<char>(), NULL, owner);
1614 } CYCatch(NULL) }
1615
1616 static JSValueRef Functor_callAsFunction_$cya(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1617     CYPool pool;
1618     cy::Functor *internal(reinterpret_cast<cy::Functor *>(JSObjectGetPrivate(_this)));
1619
1620     sig::Function type(internal->variadic_);
1621     sig::Copy(pool, type.signature, internal->signature_);
1622
1623     return CYMakePointer(context, reinterpret_cast<void *>(internal->value_), type, NULL, NULL);
1624 } CYCatch(NULL) }
1625
1626 static JSValueRef Pointer_callAsFunction_toPointer(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1627     return _this;
1628 } CYCatch(NULL) }
1629
1630 static JSValueRef CArray_callAsFunction_valueOf(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1631     CArray *internal(reinterpret_cast<CArray *>(JSObjectGetPrivate(_this)));
1632     return CYCastJSValue(context, reinterpret_cast<uintptr_t>(internal->value_));
1633 } CYCatch(NULL) }
1634
1635 static JSValueRef Pointer_callAsFunction_valueOf(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1636     Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(_this)));
1637     return CYCastJSValue(context, reinterpret_cast<uintptr_t>(internal->value_));
1638 } CYCatch(NULL) }
1639
1640 static JSValueRef Functor_callAsFunction_valueOf(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1641     cy::Functor *internal(reinterpret_cast<cy::Functor *>(JSObjectGetPrivate(_this)));
1642     return CYCastJSValue(context, reinterpret_cast<uintptr_t>(internal->value_));
1643 } CYCatch(NULL) }
1644
1645 static JSValueRef Functor_callAsFunction_toCYON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1646     cy::Functor *internal(reinterpret_cast<cy::Functor *>(JSObjectGetPrivate(_this)));
1647     uint8_t *value(reinterpret_cast<uint8_t *>(internal->value_));
1648
1649     CYLocalPool pool;
1650
1651     sig::Function function(internal->variadic_);
1652     sig::Copy(pool, function.signature, internal->signature_);
1653
1654     auto typed(CYDecodeType(pool, &function)); {
1655         std::ostringstream str;
1656         Dl_info info;
1657         if (internal->value_ == NULL)
1658             str << "NULL";
1659         else if (dladdr(value, &info) == 0)
1660             str << internal->value_;
1661         else {
1662             str << info.dli_sname;
1663             off_t offset(value - reinterpret_cast<uint8_t *>(info.dli_saddr));
1664             if (offset != 0)
1665                 str << "+0x" << std::hex << offset;
1666         }
1667
1668         typed->identifier_ = new(pool) CYIdentifier(pool.strdup(str.str().c_str()));
1669     }
1670
1671     std::ostringstream str;
1672     CYOptions options;
1673     CYOutput output(*str.rdbuf(), options);
1674     output.pretty_ = true;
1675     (new(pool) CYExternalExpression(new(pool) CYString("C"), typed))->Output(output, CYNoFlags);
1676     return CYCastJSValue(context, CYJSString(str.str()));
1677 } CYCatch(NULL) }
1678
1679 static JSValueRef Pointer_callAsFunction_toCYON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1680     std::set<void *> *objects(CYCastObjects(context, _this, count, arguments));
1681
1682     Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(_this)));
1683
1684     try {
1685         JSValueRef value(CYGetProperty(context, _this, cyi_s));
1686         if (!JSValueIsUndefined(context, value)) {
1687             CYPool pool;
1688             return CYCastJSValue(context, pool.strcat("&", CYPoolCCYON(pool, context, value, objects), NULL));
1689         }
1690     } catch (const CYException &e) {
1691         // XXX: it might be interesting to include this error
1692     }
1693
1694     CYLocalPool pool;
1695     std::ostringstream str;
1696
1697     sig::Pointer type(*internal->type_->type_);
1698
1699     CYOptions options;
1700     CYOutput output(*str.rdbuf(), options);
1701     (new(pool) CYTypeExpression(CYDecodeType(pool, &type)))->Output(output, CYNoFlags);
1702
1703     str << "(" << internal->value_ << ")";
1704     std::string value(str.str());
1705     return CYCastJSValue(context, CYJSString(CYUTF8String(value.c_str(), value.size())));
1706 } CYCatch(NULL) }
1707
1708 static JSValueRef CString_getProperty_length(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1709     CString *internal(reinterpret_cast<CString *>(JSObjectGetPrivate(object)));
1710     return CYCastJSValue(context, strlen(internal->value_));
1711 } CYCatch(NULL) }
1712
1713 static JSValueRef CString_getProperty_$cyt(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1714     return CYMakeType(context, sig::String());
1715 } CYCatch(NULL) }
1716
1717 static JSValueRef CArray_getProperty_$cyt(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1718     CArray *internal(reinterpret_cast<CArray *>(JSObjectGetPrivate(object)));
1719     sig::Array type(*internal->type_->type_, internal->length_);
1720     return CYMakeType(context, type);
1721 } CYCatch(NULL) }
1722
1723 static JSValueRef Pointer_getProperty_$cyt(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1724     Pointer *internal(reinterpret_cast<Pointer *>(JSObjectGetPrivate(object)));
1725     sig::Pointer type(*internal->type_->type_);
1726     return CYMakeType(context, type);
1727 } CYCatch(NULL) }
1728
1729 static JSValueRef CString_callAsFunction_toCYON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1730     CString *internal(reinterpret_cast<CString *>(JSObjectGetPrivate(_this)));
1731     const char *string(internal->value_);
1732     std::ostringstream str;
1733     if (string == NULL)
1734         str << "NULL";
1735     else {
1736         str << "&";
1737         CYStringify(str, string, strlen(string), true);
1738     }
1739     std::string value(str.str());
1740     return CYCastJSValue(context, CYJSString(CYUTF8String(value.c_str(), value.size())));
1741 } CYCatch(NULL) }
1742
1743 static JSValueRef CString_callAsFunction_toString(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1744     CString *internal(reinterpret_cast<CString *>(JSObjectGetPrivate(_this)));
1745     return CYCastJSValue(context, internal->value_);
1746 } CYCatch(NULL) }
1747
1748 static JSValueRef Functor_getProperty_$cyt(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1749     cy::Functor *internal(reinterpret_cast<cy::Functor *>(JSObjectGetPrivate(object)));
1750     CYPool pool;
1751     sig::Function type(internal->variadic_);
1752     sig::Copy(pool, type.signature, internal->signature_);
1753     return CYMakeType(context, type);
1754 } CYCatch(NULL) }
1755
1756 static JSValueRef Type_getProperty_alignment(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1757     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
1758     return CYCastJSValue(context, internal->GetFFI()->alignment);
1759 } CYCatch(NULL) }
1760
1761 static JSValueRef Type_getProperty_name(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1762     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
1763     return CYCastJSValue(context, internal->type_->GetName());
1764 } CYCatch(NULL) }
1765
1766 static JSValueRef Type_getProperty_size(JSContextRef context, JSObjectRef object, JSStringRef property, JSValueRef *exception) { CYTry {
1767     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(object)));
1768     return CYCastJSValue(context, internal->GetFFI()->size);
1769 } CYCatch(NULL) }
1770
1771 static JSValueRef Type_callAsFunction_toString(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1772     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1773     CYPool pool;
1774     const char *type(sig::Unparse(pool, internal->type_));
1775     return CYCastJSValue(context, CYJSString(type));
1776 } CYCatch(NULL) }
1777
1778 static JSValueRef Type_callAsFunction_toCYON(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
1779     Type_privateData *internal(reinterpret_cast<Type_privateData *>(JSObjectGetPrivate(_this)));
1780     CYLocalPool pool;
1781     std::stringbuf out;
1782     CYOptions options;
1783     CYOutput output(out, options);
1784     output.pretty_ = true;
1785     (new(pool) CYTypeExpression(CYDecodeType(pool, internal->type_->Copy(pool, ""))))->Output(output, CYNoFlags);
1786     return CYCastJSValue(context, CYJSString(out.str().c_str()));
1787 } CYCatch(NULL) }
1788
1789 static JSStaticFunction All_staticFunctions[2] = {
1790     {"cy$complete", &All_complete_callAsFunction, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1791     {NULL, NULL, 0}
1792 };
1793
1794 static JSStaticFunction CArray_staticFunctions[3] = {
1795     {"toPointer", &CArray_callAsFunction_toPointer, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1796     {"valueOf", &CArray_callAsFunction_valueOf, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1797     {NULL, NULL, 0}
1798 };
1799
1800 static JSStaticValue CArray_staticValues[2] = {
1801     {"$cyt", &CArray_getProperty_$cyt, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1802     {NULL, NULL, NULL, 0}
1803 };
1804
1805 static JSStaticFunction CString_staticFunctions[5] = {
1806     {"toCYON", &CString_callAsFunction_toCYON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1807     {"toPointer", &CString_callAsFunction_toPointer, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1808     {"toString", &CString_callAsFunction_toString, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1809     {"valueOf", &CString_callAsFunction_toString, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1810     {NULL, NULL, 0}
1811 };
1812
1813 static JSStaticValue CString_staticValues[3] = {
1814     {"length", &CString_getProperty_length, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1815     {"$cyt", &CString_getProperty_$cyt, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1816     {NULL, NULL, NULL, 0}
1817 };
1818
1819 static JSStaticFunction Pointer_staticFunctions[4] = {
1820     {"toCYON", &Pointer_callAsFunction_toCYON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1821     {"toPointer", &Pointer_callAsFunction_toPointer, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1822     {"valueOf", &Pointer_callAsFunction_valueOf, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1823     {NULL, NULL, 0}
1824 };
1825
1826 static JSStaticValue Pointer_staticValues[2] = {
1827     {"$cyt", &Pointer_getProperty_$cyt, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1828     {NULL, NULL, NULL, 0}
1829 };
1830
1831 static JSStaticFunction Struct_staticFunctions[2] = {
1832     {"$cya", &Struct_callAsFunction_$cya, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1833     {NULL, NULL, 0}
1834 };
1835
1836 static JSStaticValue Struct_staticValues[2] = {
1837     {"$cyt", &Struct_getProperty_$cyt, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1838     {NULL, NULL, NULL, 0}
1839 };
1840
1841 static JSStaticFunction Functor_staticFunctions[4] = {
1842     {"$cya", &Functor_callAsFunction_$cya, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1843     {"toCYON", &Functor_callAsFunction_toCYON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1844     {"valueOf", &Functor_callAsFunction_valueOf, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1845     {NULL, NULL, 0}
1846 };
1847
1848 namespace cy {
1849     JSStaticFunction const * const Functor::StaticFunctions = Functor_staticFunctions;
1850 }
1851
1852 static JSStaticValue Functor_staticValues[2] = {
1853     {"$cyt", &Functor_getProperty_$cyt, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1854     {NULL, NULL, NULL, 0}
1855 };
1856
1857 namespace cy {
1858     JSStaticValue const * const Functor::StaticValues = Functor_staticValues;
1859 }
1860
1861 static JSStaticValue Type_staticValues[4] = {
1862     {"alignment", &Type_getProperty_alignment, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1863     {"name", &Type_getProperty_name, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1864     {"size", &Type_getProperty_size, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1865     {NULL, NULL, NULL, 0}
1866 };
1867
1868 static JSStaticFunction Type_staticFunctions[9] = {
1869     {"arrayOf", &Type_callAsFunction_arrayOf, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1870     {"blockWith", &Type_callAsFunction_blockWith, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1871     {"constant", &Type_callAsFunction_constant, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1872     {"functionWith", &Type_callAsFunction_functionWith, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1873     {"pointerTo", &Type_callAsFunction_pointerTo, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1874     {"withName", &Type_callAsFunction_withName, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1875     {"toCYON", &Type_callAsFunction_toCYON, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1876     {"toString", &Type_callAsFunction_toString, kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete},
1877     {NULL, NULL, 0}
1878 };
1879
1880 _visible void CYSetArgs(int argc, const char *argv[]) {
1881     JSContextRef context(CYGetJSContext());
1882     JSValueRef args[argc];
1883     for (int i(0); i != argc; ++i)
1884         args[i] = CYCastJSValue(context, argv[i]);
1885
1886     JSObjectRef array(CYObjectMakeArray(context, argc, args));
1887     JSObjectRef System(CYGetCachedObject(context, CYJSString("System")));
1888     CYSetProperty(context, System, CYJSString("args"), array);
1889 }
1890
1891 JSObjectRef CYGetGlobalObject(JSContextRef context) {
1892     return JSContextGetGlobalObject(context);
1893 }
1894
1895 // XXX: this is neither exceptin safe nor even terribly sane
1896 class ExecutionHandle {
1897   private:
1898     JSContextRef context_;
1899     std::vector<void *> handles_;
1900
1901   public:
1902     ExecutionHandle(JSContextRef context) :
1903         context_(context)
1904     {
1905         handles_.resize(GetHooks().size());
1906         for (size_t i(0); i != GetHooks().size(); ++i) {
1907             CYHook *hook(GetHooks()[i]);
1908             if (hook->ExecuteStart != NULL)
1909                 handles_[i] = (*hook->ExecuteStart)(context_);
1910             else
1911                 handles_[i] = NULL;
1912         }
1913     }
1914
1915     ~ExecutionHandle() {
1916         for (size_t i(GetHooks().size()); i != 0; --i) {
1917             CYHook *hook(GetHooks()[i-1]);
1918             if (hook->ExecuteEnd != NULL)
1919                 (*hook->ExecuteEnd)(context_, handles_[i-1]);
1920         }
1921     }
1922 };
1923
1924 #ifndef __ANDROID__
1925 static volatile bool cancel_;
1926
1927 static bool CYShouldTerminate(JSContextRef context, void *arg) {
1928     return cancel_;
1929 }
1930 #endif
1931
1932 _visible const char *CYExecute(JSContextRef context, CYPool &pool, CYUTF8String code) {
1933     ExecutionHandle handle(context);
1934
1935 #ifndef __ANDROID__
1936     cancel_ = false;
1937     if (&JSContextGroupSetExecutionTimeLimit != NULL)
1938         JSContextGroupSetExecutionTimeLimit(JSContextGetGroup(context), 0.5, &CYShouldTerminate, NULL);
1939 #endif
1940
1941     try {
1942         JSValueRef result(_jsccall(JSEvaluateScript, context, CYJSString(code), NULL, NULL, 0));
1943         if (JSValueIsUndefined(context, result))
1944             return NULL;
1945
1946         std::set<void *> objects;
1947         const char *json(_jsccall(CYPoolCCYON, pool, context, result, objects));
1948         CYSetProperty(context, CYGetGlobalObject(context), Result_, result);
1949
1950         return json;
1951     } catch (const CYException &error) {
1952         return pool.strcat("throw ", error.PoolCString(pool), NULL);
1953     }
1954 }
1955
1956 #ifndef __ANDROID__
1957 _visible void CYCancel() {
1958     cancel_ = true;
1959 }
1960 #endif
1961
1962 const char *CYPoolLibraryPath(CYPool &pool);
1963
1964 static bool initialized_ = false;
1965
1966 void CYInitializeDynamic() {
1967     if (!initialized_)
1968         initialized_ = true;
1969     else return;
1970
1971     CYPool pool;
1972     const char *db(pool.strcat(CYPoolLibraryPath(pool), "/libcycript.db", NULL));
1973     _sqlcall(sqlite3_open_v2(db, &database_, SQLITE_OPEN_READONLY, NULL));
1974
1975     JSObjectMakeArray$ = reinterpret_cast<JSObjectRef (*)(JSContextRef, size_t, const JSValueRef[], JSValueRef *)>(dlsym(RTLD_DEFAULT, "JSObjectMakeArray"));
1976     JSSynchronousGarbageCollectForDebugging$ = reinterpret_cast<void (*)(JSContextRef)>(dlsym(RTLD_DEFAULT, "JSSynchronousGarbageCollectForDebugging"));
1977
1978     JSClassDefinition definition;
1979
1980     definition = kJSClassDefinitionEmpty;
1981     definition.className = "All";
1982     definition.staticFunctions = All_staticFunctions;
1983     definition.hasProperty = &All_hasProperty;
1984     definition.getProperty = &All_getProperty;
1985     definition.getPropertyNames = &All_getPropertyNames;
1986     All_ = JSClassCreate(&definition);
1987
1988     definition = kJSClassDefinitionEmpty;
1989     definition.className = "Context";
1990     definition.finalize = &CYFinalize;
1991     Context::Class_ = JSClassCreate(&definition);
1992
1993     definition = kJSClassDefinitionEmpty;
1994     definition.className = "CArray";
1995     definition.staticFunctions = CArray_staticFunctions;
1996     definition.staticValues = CArray_staticValues;
1997     definition.getProperty = &CArray_getProperty;
1998     definition.setProperty = &CArray_setProperty;
1999     definition.finalize = &CYFinalize;
2000     CArray::Class_ = JSClassCreate(&definition);
2001
2002     definition = kJSClassDefinitionEmpty;
2003     definition.className = "CString";
2004     definition.staticFunctions = CString_staticFunctions;
2005     definition.staticValues = CString_staticValues;
2006     definition.getProperty = &CString_getProperty;
2007     definition.setProperty = &CString_setProperty;
2008     definition.finalize = &CYFinalize;
2009     CString::Class_ = JSClassCreate(&definition);
2010
2011     definition = kJSClassDefinitionEmpty;
2012     definition.className = "Functor";
2013     definition.staticFunctions = cy::Functor::StaticFunctions;
2014     definition.staticValues = Functor_staticValues;
2015     definition.callAsFunction = &Functor_callAsFunction;
2016     definition.finalize = &CYFinalize;
2017     Functor_ = JSClassCreate(&definition);
2018
2019     definition = kJSClassDefinitionEmpty;
2020     definition.className = "Pointer";
2021     definition.staticFunctions = Pointer_staticFunctions;
2022     definition.staticValues = Pointer_staticValues;
2023     definition.callAsFunction = &Pointer_callAsFunction;
2024     definition.getProperty = &Pointer_getProperty;
2025     definition.setProperty = &Pointer_setProperty;
2026     definition.finalize = &CYFinalize;
2027     Pointer::Class_ = JSClassCreate(&definition);
2028
2029     definition = kJSClassDefinitionEmpty;
2030     definition.className = "Struct";
2031     definition.staticFunctions = Struct_staticFunctions;
2032     definition.staticValues = Struct_staticValues;
2033     definition.getProperty = &Struct_getProperty;
2034     definition.setProperty = &Struct_setProperty;
2035     definition.getPropertyNames = &Struct_getPropertyNames;
2036     definition.finalize = &CYFinalize;
2037     Struct_privateData::Class_ = JSClassCreate(&definition);
2038
2039     definition = kJSClassDefinitionEmpty;
2040     definition.className = "Type";
2041     definition.staticValues = Type_staticValues;
2042     definition.staticFunctions = Type_staticFunctions;
2043     definition.callAsFunction = &Type_callAsFunction;
2044     definition.callAsConstructor = &Type_callAsConstructor;
2045     definition.finalize = &CYFinalize;
2046     Type_privateData::Class_ = JSClassCreate(&definition);
2047
2048     definition = kJSClassDefinitionEmpty;
2049     definition.className = "Global";
2050     //definition.getProperty = &Global_getProperty;
2051     Global_ = JSClassCreate(&definition);
2052
2053     Array_s = JSStringCreateWithUTF8CString("Array");
2054     constructor_s = JSStringCreateWithUTF8CString("constructor");
2055     cy_s = JSStringCreateWithUTF8CString("$cy");
2056     cyi_s = JSStringCreateWithUTF8CString("$cyi");
2057     cyt_s = JSStringCreateWithUTF8CString("$cyt");
2058     length_s = JSStringCreateWithUTF8CString("length");
2059     message_s = JSStringCreateWithUTF8CString("message");
2060     name_s = JSStringCreateWithUTF8CString("name");
2061     pop_s = JSStringCreateWithUTF8CString("pop");
2062     prototype_s = JSStringCreateWithUTF8CString("prototype");
2063     push_s = JSStringCreateWithUTF8CString("push");
2064     splice_s = JSStringCreateWithUTF8CString("splice");
2065     toCYON_s = JSStringCreateWithUTF8CString("toCYON");
2066     toJSON_s = JSStringCreateWithUTF8CString("toJSON");
2067     toPointer_s = JSStringCreateWithUTF8CString("toPointer");
2068     toString_s = JSStringCreateWithUTF8CString("toString");
2069     weak_s = JSStringCreateWithUTF8CString("weak");
2070
2071     Result_ = JSStringCreateWithUTF8CString("_");
2072
2073     for (CYHook *hook : GetHooks())
2074         if (hook->Initialize != NULL)
2075             (*hook->Initialize)();
2076 }
2077
2078 void CYThrow(JSContextRef context, JSValueRef value) {
2079     if (value != NULL)
2080         throw CYJSError(context, value);
2081 }
2082
2083 const char *CYJSError::PoolCString(CYPool &pool) const {
2084     std::set<void *> objects;
2085     // XXX: this used to be CYPoolCString
2086     return CYPoolCCYON(pool, context_, value_, objects);
2087 }
2088
2089 JSValueRef CYJSError::CastJSValue(JSContextRef context, const char *name) const {
2090     // XXX: what if the context is different? or the name? I dunno. ("epic" :/)
2091     return value_;
2092 }
2093
2094 JSValueRef CYCastJSError(JSContextRef context, const char *name, const char *message) {
2095     JSObjectRef Error(CYGetCachedObject(context, CYJSString(name)));
2096     JSValueRef arguments[1] = {CYCastJSValue(context, message)};
2097     return _jsccall(JSObjectCallAsConstructor, context, Error, 1, arguments);
2098 }
2099
2100 JSValueRef CYPoolError::CastJSValue(JSContextRef context, const char *name) const {
2101     return CYCastJSError(context, name, message_);
2102 }
2103
2104 CYJSError::CYJSError(JSContextRef context, const char *format, ...) {
2105     _assert(context != NULL);
2106
2107     CYPool pool;
2108
2109     va_list args;
2110     va_start(args, format);
2111     // XXX: there might be a beter way to think about this
2112     const char *message(pool.vsprintf(64, format, args));
2113     va_end(args);
2114
2115     value_ = CYCastJSError(context, "Error", message);
2116 }
2117
2118 JSGlobalContextRef CYGetJSContext(JSContextRef context) {
2119     return reinterpret_cast<Context *>(JSObjectGetPrivate(CYCastJSObject(context, CYGetProperty(context, CYGetGlobalObject(context), cy_s))))->context_;
2120 }
2121
2122 const char *CYPoolLibraryPath(CYPool &pool) {
2123     Dl_info addr;
2124     _assert(dladdr(reinterpret_cast<void *>(&CYPoolLibraryPath), &addr) != 0);
2125     char *lib(pool.strdup(addr.dli_fname));
2126
2127     char *slash(strrchr(lib, '/'));
2128     if (slash == NULL)
2129         return ".";
2130     *slash = '\0';
2131
2132     slash = strrchr(lib, '/');
2133     if (slash != NULL) {
2134         if (strcmp(slash, "/.libs") == 0)
2135             *slash = '\0';
2136     } else if (strcmp(lib, ".libs") == 0)
2137         return ".";
2138
2139     return lib;
2140 }
2141
2142 static JSValueRef require_callAsFunction(JSContextRef context, JSObjectRef object, JSObjectRef _this, size_t count, const JSValueRef arguments[], JSValueRef *exception) { CYTry {
2143     _assert(count == 1);
2144     CYPool pool;
2145
2146     const char *name(CYPoolCString(pool, context, arguments[0]));
2147     if (strchr(name, '/') == NULL && (
2148 #ifdef __APPLE__
2149         dlopen(pool.strcat("/System/Library/Frameworks/", name, ".framework/", name, NULL), RTLD_LAZY | RTLD_GLOBAL) != NULL ||
2150         dlopen(pool.strcat("/System/Library/PrivateFrameworks/", name, ".framework/", name, NULL), RTLD_LAZY | RTLD_GLOBAL) != NULL ||
2151 #endif
2152     false))
2153         return CYJSUndefined(context);
2154
2155     JSObjectRef resolve(CYCastJSObject(context, CYGetProperty(context, object, CYJSString("resolve"))));
2156     CYJSString path(context, CYCallAsFunction(context, resolve, NULL, 1, arguments));
2157
2158     CYJSString property("exports");
2159
2160     JSObjectRef modules(CYGetCachedObject(context, CYJSString("modules")));
2161     JSValueRef cache(CYGetProperty(context, modules, path));
2162
2163     JSValueRef result;
2164     if (!JSValueIsUndefined(context, cache)) {
2165         JSObjectRef module(CYCastJSObject(context, cache));
2166         result = CYGetProperty(context, module, property);
2167     } else {
2168         CYUTF8String code(CYPoolFileUTF8String(pool, CYPoolCString(pool, context, path)));
2169         _assert(code.data != NULL);
2170
2171         size_t length(strlen(name));
2172         if (length >= 5 && strcmp(name + length - 5, ".json") == 0) {
2173             JSObjectRef JSON(CYGetCachedObject(context, CYJSString("JSON")));
2174             JSObjectRef parse(CYCastJSObject(context, CYGetProperty(context, JSON, CYJSString("parse"))));
2175             JSValueRef arguments[1] = { CYCastJSValue(context, CYJSString(code)) };
2176             result = CYCallAsFunction(context, parse, JSON, 1, arguments);
2177         } else {
2178             JSObjectRef module(JSObjectMake(context, NULL, NULL));
2179             CYSetProperty(context, modules, path, module);
2180
2181             JSObjectRef exports(JSObjectMake(context, NULL, NULL));
2182             CYSetProperty(context, module, property, exports);
2183
2184             std::stringstream wrap;
2185             wrap << "(function (exports, require, module, __filename) { " << code << "\n});";
2186             code = CYPoolCode(pool, *wrap.rdbuf());
2187
2188             JSValueRef value(_jsccall(JSEvaluateScript, context, CYJSString(code), NULL, NULL, 0));
2189             JSObjectRef function(CYCastJSObject(context, value));
2190
2191             JSValueRef arguments[4] = { exports, object, module, CYCastJSValue(context, path) };
2192             CYCallAsFunction(context, function, NULL, 4, arguments);
2193             result = CYGetProperty(context, module, property);
2194         }
2195     }
2196
2197     return result;
2198 } CYCatch(NULL) }
2199
2200 static bool CYRunScript(JSGlobalContextRef context, const char *path) {
2201     CYPool pool;
2202     CYUTF8String code(CYPoolFileUTF8String(pool, pool.strcat(CYPoolLibraryPath(pool), path, NULL)));
2203     if (code.data == NULL)
2204         return false;
2205
2206     code = CYPoolCode(pool, code);
2207     _jsccall(JSEvaluateScript, context, CYJSString(code), NULL, NULL, 0);
2208     return true;
2209 }
2210
2211 extern "C" void CYDestroyWeak(JSWeakObjectMapRef weak, void *data) {
2212 }
2213
2214 extern "C" void CYSetupContext(JSGlobalContextRef context) {
2215     CYInitializeDynamic();
2216
2217     JSObjectRef global(CYGetGlobalObject(context));
2218
2219     JSObjectRef cy(Context::Make(context, context));
2220     CYSetProperty(context, global, cy_s, cy, kJSPropertyAttributeDontEnum);
2221
2222 /* Cache Globals {{{ */
2223     JSObjectRef Array(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Array"))));
2224     CYSetProperty(context, cy, CYJSString("Array"), Array);
2225
2226     JSObjectRef Array_prototype(CYCastJSObject(context, CYGetProperty(context, Array, prototype_s)));
2227     CYSetProperty(context, cy, CYJSString("Array_prototype"), Array_prototype);
2228
2229     JSObjectRef Boolean(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Boolean"))));
2230     CYSetProperty(context, cy, CYJSString("Boolean"), Boolean);
2231
2232     JSObjectRef Boolean_prototype(CYCastJSObject(context, CYGetProperty(context, Boolean, prototype_s)));
2233     CYSetProperty(context, cy, CYJSString("Boolean_prototype"), Boolean_prototype);
2234
2235     JSObjectRef Error(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Error"))));
2236     CYSetProperty(context, cy, CYJSString("Error"), Error);
2237
2238     JSObjectRef Function(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Function"))));
2239     CYSetProperty(context, cy, CYJSString("Function"), Function);
2240
2241     JSObjectRef Function_prototype(CYCastJSObject(context, CYGetProperty(context, Function, prototype_s)));
2242     CYSetProperty(context, cy, CYJSString("Function_prototype"), Function_prototype);
2243
2244     JSObjectRef JSON(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("JSON"))));
2245     CYSetProperty(context, cy, CYJSString("JSON"), JSON);
2246
2247     JSObjectRef Number(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Number"))));
2248     CYSetProperty(context, cy, CYJSString("Number"), Number);
2249
2250     JSObjectRef Number_prototype(CYCastJSObject(context, CYGetProperty(context, Number, prototype_s)));
2251     CYSetProperty(context, cy, CYJSString("Number_prototype"), Number_prototype);
2252
2253     JSObjectRef Object(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("Object"))));
2254     CYSetProperty(context, cy, CYJSString("Object"), Object);
2255
2256     JSObjectRef Object_prototype(CYCastJSObject(context, CYGetProperty(context, Object, prototype_s)));
2257     CYSetProperty(context, cy, CYJSString("Object_prototype"), Object_prototype);
2258
2259     JSObjectRef String(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("String"))));
2260     CYSetProperty(context, cy, CYJSString("String"), String);
2261
2262     JSObjectRef String_prototype(CYCastJSObject(context, CYGetProperty(context, String, prototype_s)));
2263     CYSetProperty(context, cy, CYJSString("String_prototype"), String_prototype);
2264
2265     JSObjectRef SyntaxError(CYCastJSObject(context, CYGetProperty(context, global, CYJSString("SyntaxError"))));
2266     CYSetProperty(context, cy, CYJSString("SyntaxError"), SyntaxError);
2267 /* }}} */
2268
2269     CYSetProperty(context, Array_prototype, toCYON_s, &Array_callAsFunction_toCYON, kJSPropertyAttributeDontEnum);
2270     CYSetProperty(context, String_prototype, toCYON_s, &String_callAsFunction_toCYON, kJSPropertyAttributeDontEnum);
2271
2272     JSObjectRef cycript(JSObjectMake(context, NULL, NULL));
2273     CYSetProperty(context, global, CYJSString("Cycript"), cycript);
2274     CYSetProperty(context, cycript, CYJSString("compile"), &Cycript_compile_callAsFunction);
2275     CYSetProperty(context, cycript, CYJSString("gc"), &Cycript_gc_callAsFunction);
2276
2277     JSObjectRef CArray(JSObjectMakeConstructor(context, CArray::Class_, &CArray_new));
2278     CYSetPrototype(context, CYCastJSObject(context, CYGetProperty(context, CArray, prototype_s)), Array_prototype);
2279     CYSetProperty(context, cycript, CYJSString("CArray"), CArray);
2280
2281     JSObjectRef CString(JSObjectMakeConstructor(context, CString::Class_, &CString_new));
2282     CYSetPrototype(context, CYCastJSObject(context, CYGetProperty(context, CString, prototype_s)), String_prototype);
2283     CYSetProperty(context, cycript, CYJSString("CString"), CString);
2284
2285     JSObjectRef Functor(JSObjectMakeConstructor(context, Functor_, &Functor_new));
2286     CYSetPrototype(context, CYCastJSObject(context, CYGetProperty(context, Functor, prototype_s)), Function_prototype);
2287     CYSetProperty(context, cycript, CYJSString("Functor"), Functor);
2288
2289     CYSetProperty(context, cycript, CYJSString("Pointer"), JSObjectMakeConstructor(context, Pointer::Class_, &Pointer_new));
2290     CYSetProperty(context, cycript, CYJSString("Type"), JSObjectMakeConstructor(context, Type_privateData::Class_, &Type_new));
2291
2292     JSObjectRef modules(JSObjectMake(context, NULL, NULL));
2293     CYSetProperty(context, cy, CYJSString("modules"), modules);
2294
2295     JSObjectRef all(JSObjectMake(context, All_, NULL));
2296     CYSetProperty(context, cycript, CYJSString("all"), all);
2297
2298     JSObjectRef cache(JSObjectMake(context, NULL, NULL));
2299     CYSetProperty(context, cy, CYJSString("cache"), cache);
2300     CYSetPrototype(context, cache, all);
2301
2302     JSObjectRef alls(_jsccall(JSObjectCallAsConstructor, context, Array, 0, NULL));
2303     CYSetProperty(context, cycript, CYJSString("alls"), alls);
2304
2305     if (true) {
2306         JSObjectRef last(NULL), curr(global);
2307
2308         goto next; for (JSValueRef next;;) {
2309             if (JSValueIsNull(context, next))
2310                 break;
2311             last = curr;
2312             curr = CYCastJSObject(context, next);
2313           next:
2314             next = JSObjectGetPrototype(context, curr);
2315         }
2316
2317         CYSetPrototype(context, last, cache);
2318     }
2319
2320     JSObjectRef System(JSObjectMake(context, NULL, NULL));
2321     CYSetProperty(context, cy, CYJSString("System"), System);
2322
2323     CYSetProperty(context, global, CYJSString("require"), &require_callAsFunction, kJSPropertyAttributeDontEnum);
2324
2325     CYSetProperty(context, global, CYJSString("system"), System);
2326     CYSetProperty(context, System, CYJSString("args"), CYJSNull(context));
2327     CYSetProperty(context, System, CYJSString("print"), &System_print);
2328
2329     CYSetProperty(context, global, CYJSString("global"), global);
2330
2331 #ifdef __APPLE__
2332     if (&JSWeakObjectMapCreate != NULL) {
2333         JSWeakObjectMapRef weak(JSWeakObjectMapCreate(context, NULL, &CYDestroyWeak));
2334         CYSetProperty(context, cy, weak_s, CYCastJSValue(context, reinterpret_cast<uintptr_t>(weak)));
2335     }
2336 #endif
2337
2338     CYSetProperty(context, String_prototype, cyt_s, CYMakeType(context, sig::String()), kJSPropertyAttributeDontEnum);
2339
2340     CYSetProperty(context, cache, CYJSString("dlerror"), CYMakeFunctor(context, "dlerror", "*"), kJSPropertyAttributeDontEnum);
2341     CYSetProperty(context, cache, CYJSString("RTLD_DEFAULT"), CYCastJSValue(context, reinterpret_cast<intptr_t>(RTLD_DEFAULT)), kJSPropertyAttributeDontEnum);
2342     CYSetProperty(context, cache, CYJSString("dlsym"), CYMakeFunctor(context, "dlsym", "^v^v*"), kJSPropertyAttributeDontEnum);
2343
2344     CYSetProperty(context, cache, CYJSString("NULL"), CYJSNull(context), kJSPropertyAttributeDontEnum);
2345
2346     CYSetProperty(context, cache, CYJSString("bool"), CYMakeType(context, sig::Primitive<bool>()), kJSPropertyAttributeDontEnum);
2347     CYSetProperty(context, cache, CYJSString("char"), CYMakeType(context, sig::Primitive<char>()), kJSPropertyAttributeDontEnum);
2348     CYSetProperty(context, cache, CYJSString("schar"), CYMakeType(context, sig::Primitive<signed char>()), kJSPropertyAttributeDontEnum);
2349     CYSetProperty(context, cache, CYJSString("uchar"), CYMakeType(context, sig::Primitive<unsigned char>()), kJSPropertyAttributeDontEnum);
2350
2351     CYSetProperty(context, cache, CYJSString("short"), CYMakeType(context, sig::Primitive<short>()), kJSPropertyAttributeDontEnum);
2352     CYSetProperty(context, cache, CYJSString("int"), CYMakeType(context, sig::Primitive<int>()), kJSPropertyAttributeDontEnum);
2353     CYSetProperty(context, cache, CYJSString("long"), CYMakeType(context, sig::Primitive<long>()), kJSPropertyAttributeDontEnum);
2354     CYSetProperty(context, cache, CYJSString("longlong"), CYMakeType(context, sig::Primitive<long long>()), kJSPropertyAttributeDontEnum);
2355
2356     CYSetProperty(context, cache, CYJSString("ushort"), CYMakeType(context, sig::Primitive<unsigned short>()), kJSPropertyAttributeDontEnum);
2357     CYSetProperty(context, cache, CYJSString("uint"), CYMakeType(context, sig::Primitive<unsigned int>()), kJSPropertyAttributeDontEnum);
2358     CYSetProperty(context, cache, CYJSString("ulong"), CYMakeType(context, sig::Primitive<unsigned long>()), kJSPropertyAttributeDontEnum);
2359     CYSetProperty(context, cache, CYJSString("ulonglong"), CYMakeType(context, sig::Primitive<unsigned long long>()), kJSPropertyAttributeDontEnum);
2360
2361 #ifdef __SIZEOF_INT128__
2362     CYSetProperty(context, cache, CYJSString("int128"), CYMakeType(context, sig::Primitive<__int128>()), kJSPropertyAttributeDontEnum);
2363     CYSetProperty(context, cache, CYJSString("uint128"), CYMakeType(context, sig::Primitive<unsigned __int128>()), kJSPropertyAttributeDontEnum);
2364 #endif
2365
2366     CYSetProperty(context, cache, CYJSString("float"), CYMakeType(context, sig::Primitive<float>()), kJSPropertyAttributeDontEnum);
2367     CYSetProperty(context, cache, CYJSString("double"), CYMakeType(context, sig::Primitive<double>()), kJSPropertyAttributeDontEnum);
2368
2369     for (CYHook *hook : GetHooks())
2370         if (hook->SetupContext != NULL)
2371             (*hook->SetupContext)(context);
2372
2373     CYArrayPush(context, alls, cycript);
2374
2375     CYRunScript(context, "/libcycript.cy");
2376 }
2377
2378 static JSGlobalContextRef context_;
2379
2380 _visible JSGlobalContextRef CYGetJSContext() {
2381     CYInitializeDynamic();
2382
2383     if (context_ == NULL) {
2384         context_ = JSGlobalContextCreate(Global_);
2385         CYSetupContext(context_);
2386     }
2387
2388     return context_;
2389 }
2390
2391 _visible void CYDestroyContext() {
2392     if (context_ == NULL)
2393         return;
2394     JSGlobalContextRelease(context_);
2395     context_ = NULL;
2396 }