JavaScript.hpp

   1 /* Cycript - Optimizing JavaScript Compiler/Runtime
   2  * Copyright (C) 2009-2015  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 #ifndef CYCRIPT_JAVASCRIPT_HPP
  23 #define CYCRIPT_JAVASCRIPT_HPP
  24
  25 #include <set>
  26 #include <string>
  27
  28 #include <JavaScriptCore/JSBase.h>
  29 #include <JavaScriptCore/JSContextRef.h>
  30 #include <JavaScriptCore/JSStringRef.h>
  31 #include <JavaScriptCore/JSObjectRef.h>
  32 #include <JavaScriptCore/JSValueRef.h>
  33
  34 #ifdef HAVE_FFI_FFI_H
  35 #include <ffi/ffi.h>
  36 #else
  37 #include <ffi.h>
  38 #endif
  39
  40 #include "Pooling.hpp"
  41 #include "String.hpp"
  42
  43 extern JSStringRef Array_s;
  44 extern JSStringRef cy_s;
  45 extern JSStringRef cyi_s;
  46 extern JSStringRef cyt_s;
  47 extern JSStringRef length_s;
  48 extern JSStringRef message_s;
  49 extern JSStringRef name_s;
  50 extern JSStringRef pop_s;
  51 extern JSStringRef prototype_s;
  52 extern JSStringRef push_s;
  53 extern JSStringRef splice_s;
  54 extern JSStringRef toCYON_s;
  55 extern JSStringRef toJSON_s;
  56 extern JSStringRef toPointer_s;
  57 extern JSStringRef toString_s;
  58 extern JSStringRef weak_s;
  59
  60 void CYInitializeDynamic();
  61 JSGlobalContextRef CYGetJSContext();
  62 JSObjectRef CYGetGlobalObject(JSContextRef context);
  63
  64 extern "C" void CYSetupContext(JSGlobalContextRef context);
  65 const char *CYExecute(JSContextRef context, CYPool &pool, CYUTF8String code);
  66 void CYCancel();
  67
  68 void CYSetArgs(int argc, const char *argv[]);
  69
  70 bool CYCastBool(JSContextRef context, JSValueRef value);
  71 double CYCastDouble(JSContextRef context, JSValueRef value);
  72
  73 bool CYIsEqual(JSContextRef context, JSValueRef lhs, JSValueRef rhs);
  74 bool CYIsStrictEqual(JSContextRef context, JSValueRef lhs, JSValueRef rhs);
  75
  76 CYUTF16String CYCastUTF16String(JSStringRef value);
  77 CYUTF8String CYPoolUTF8String(CYPool &pool, JSContextRef context, JSStringRef value);
  78 const char *CYPoolCString(CYPool &pool, JSContextRef context, JSStringRef value);
  79
  80 bool CYHasProperty(JSContextRef context, JSObjectRef object, JSStringRef name);
  81 JSValueRef CYGetProperty(JSContextRef context, JSObjectRef object, size_t index);
  82 JSValueRef CYGetProperty(JSContextRef context, JSObjectRef object, JSStringRef name);
  83
  84 void CYSetProperty(JSContextRef context, JSObjectRef object, size_t index, JSValueRef value);
  85 void CYSetProperty(JSContextRef context, JSObjectRef object, JSStringRef name, JSValueRef value, JSPropertyAttributes attributes = kJSPropertyAttributeNone);
  86 void CYSetProperty(JSContextRef context, JSObjectRef object, JSStringRef name, JSValueRef (*callback)(JSContextRef, JSObjectRef, JSObjectRef, size_t, const JSValueRef[], JSValueRef *), JSPropertyAttributes attributes = kJSPropertyAttributeNone);
  87
  88 JSObjectRef CYGetPrototype(JSContextRef context, JSObjectRef object);
  89 void CYSetPrototype(JSContextRef context, JSObjectRef object, JSValueRef prototype);
  90
  91 JSValueRef CYGetCachedValue(JSContextRef context, JSStringRef name);
  92 JSObjectRef CYGetCachedObject(JSContextRef context, JSStringRef name);
  93
  94 JSValueRef CYCastJSValue(JSContextRef context, bool value);
  95 JSValueRef CYCastJSValue(JSContextRef context, double value);
  96
  97 JSValueRef CYCastJSValue(JSContextRef context, signed short int value);
  98 JSValueRef CYCastJSValue(JSContextRef context, unsigned short int value);
  99 JSValueRef CYCastJSValue(JSContextRef context, signed int value);
 100 JSValueRef CYCastJSValue(JSContextRef context, unsigned int value);
 101 JSValueRef CYCastJSValue(JSContextRef context, signed long int value);
 102 JSValueRef CYCastJSValue(JSContextRef context, unsigned long int value);
 103 JSValueRef CYCastJSValue(JSContextRef context, signed long long int value);
 104 JSValueRef CYCastJSValue(JSContextRef context, unsigned long long int value);
 105
 106 JSValueRef CYCastJSValue(JSContextRef context, JSStringRef value);
 107 JSValueRef CYCastJSValue(JSContextRef context, const char *value);
 108
 109 JSObjectRef CYCastJSObject(JSContextRef context, JSValueRef value);
 110 JSValueRef CYJSUndefined(JSContextRef context);
 111 JSValueRef CYJSNull(JSContextRef context);
 112
 113 void *CYCastPointer_(JSContextRef context, JSValueRef value, bool *guess = NULL);
 114
 115 template <typename Type_>
 116 _finline Type_ CYCastPointer(JSContextRef context, JSValueRef value, bool *guess = NULL) {
 117     return reinterpret_cast<Type_>(CYCastPointer_(context, value, guess));
 118 }
 119
 120 void CYCallFunction(CYPool &pool, JSContextRef context, ffi_cif *cif, void (*function)(), void *value, void **values);
 121 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)());
 122
 123 bool CYIsCallable(JSContextRef context, JSValueRef value);
 124 JSValueRef CYCallAsFunction(JSContextRef context, JSObjectRef function, JSObjectRef _this, size_t count, const JSValueRef arguments[]);
 125
 126 const char *CYPoolCCYON(CYPool &pool, JSContextRef context, JSObjectRef object, std::set<void *> &objects);
 127 std::set<void *> *CYCastObjects(JSContextRef context, JSObjectRef _this, size_t count, const JSValueRef arguments[]);
 128
 129 struct CYHook {
 130     void *(*ExecuteStart)(JSContextRef);
 131     void (*ExecuteEnd)(JSContextRef, void *);
 132
 133     void (*CallFunction)(CYPool &, JSContextRef, ffi_cif *, void (*)(), void *, void **);
 134
 135     void (*Initialize)();
 136     void (*SetupContext)(JSContextRef);
 137
 138     void *(*CastSymbol)(const char *);
 139 };
 140
 141 struct CYRegisterHook {
 142     CYRegisterHook(CYHook *hook);
 143 };
 144
 145 JSObjectRef CYMakePointer(JSContextRef context, void *pointer, const sig::Type &type, ffi_type *ffi, JSObjectRef owner);
 146
 147 JSObjectRef CYMakeType(JSContextRef context, const sig::Type &type);
 148
 149 void CYFinalize(JSObjectRef object);
 150
 151 JSObjectRef CYObjectMakeArray(JSContextRef context, size_t length, const JSValueRef values[]);
 152
 153 size_t CYArrayLength(JSContextRef context, JSObjectRef array);
 154 JSValueRef CYArrayGet(JSContextRef context, JSObjectRef array, size_t index);
 155
 156 void CYArrayPush(JSContextRef context, JSObjectRef array, size_t length, const JSValueRef arguments[]);
 157 void CYArrayPush(JSContextRef context, JSObjectRef array, JSValueRef value);
 158
 159 bool CYGetOffset(CYPool &pool, JSContextRef context, JSStringRef value, ssize_t &index);
 160
 161 const char *CYPoolCString(CYPool &pool, JSContextRef context, JSValueRef value);
 162
 163 JSStringRef CYCopyJSString(const char *value);
 164 JSStringRef CYCopyJSString(JSStringRef value);
 165 JSStringRef CYCopyJSString(CYUTF8String value);
 166 JSStringRef CYCopyJSString(const std::string &value);
 167 JSStringRef CYCopyJSString(CYUTF16String value);
 168 JSStringRef CYCopyJSString(JSContextRef context, JSValueRef value);
 169
 170 void CYGarbageCollect(JSContextRef context);
 171 void CYDestroyContext();
 172
 173 class CYJSString {
 174   private:
 175     JSStringRef string_;
 176
 177     void Clear_() {
 178         if (string_ != NULL)
 179             JSStringRelease(string_);
 180     }
 181
 182   public:
 183     CYJSString(const CYJSString &rhs) :
 184         string_(CYCopyJSString(rhs.string_))
 185     {
 186     }
 187
 188     template <typename Arg0_>
 189     CYJSString(Arg0_ arg0) :
 190         string_(CYCopyJSString(arg0))
 191     {
 192     }
 193
 194     template <typename Arg0_, typename Arg1_>
 195     CYJSString(Arg0_ arg0, Arg1_ arg1) :
 196         string_(CYCopyJSString(arg0, arg1))
 197     {
 198     }
 199
 200     CYJSString &operator =(const CYJSString &rhs) {
 201         Clear_();
 202         string_ = CYCopyJSString(rhs.string_);
 203         return *this;
 204     }
 205
 206     ~CYJSString() {
 207         Clear_();
 208     }
 209
 210     void Clear() {
 211         Clear_();
 212         string_ = NULL;
 213     }
 214
 215     operator JSStringRef() const {
 216         return string_;
 217     }
 218 };
 219
 220 template <size_t Size_>
 221 class CYArrayBuilder {
 222   private:
 223     JSContextRef context_;
 224     JSObjectRef &array_;
 225     size_t size_;
 226     JSValueRef values_[Size_];
 227
 228     void flush() {
 229         if (array_ == NULL)
 230             array_ = CYObjectMakeArray(context_, size_, values_);
 231         else
 232             CYArrayPush(context_, array_, size_, values_);
 233     }
 234
 235   public:
 236     CYArrayBuilder(JSContextRef context, JSObjectRef &array) :
 237         context_(context),
 238         array_(array),
 239         size_(0)
 240     {
 241     }
 242
 243     ~CYArrayBuilder() {
 244         flush();
 245     }
 246
 247     void operator ()(JSValueRef value) {
 248         if (size_ == Size_) {
 249             flush();
 250             size_ = 0;
 251         }
 252
 253         values_[size_++] = value;
 254     }
 255 };
 256
 257 #ifdef __APPLE__
 258 #define _weak __attribute__((__weak_import__));
 259 #else
 260 #define _weak
 261 #endif
 262
 263 typedef struct OpaqueJSWeakObjectMap *JSWeakObjectMapRef;
 264 typedef void (*JSWeakMapDestroyedCallback)(JSWeakObjectMapRef map, void *data);
 265
 266 extern "C" JSWeakObjectMapRef JSWeakObjectMapCreate(JSContextRef ctx, void *data, JSWeakMapDestroyedCallback destructor) _weak;
 267 extern "C" void JSWeakObjectMapSet(JSContextRef ctx, JSWeakObjectMapRef map, void *key, JSObjectRef) _weak;
 268 extern "C" JSObjectRef JSWeakObjectMapGet(JSContextRef ctx, JSWeakObjectMapRef map, void *key) _weak;
 269 extern "C" bool JSWeakObjectMapClear(JSContextRef ctx, JSWeakObjectMapRef map, void *key, JSObjectRef object) _weak;
 270 extern "C" void JSWeakObjectMapRemove(JSContextRef ctx, JSWeakObjectMapRef map, void* key) _weak;
 271
 272 typedef bool (*JSShouldTerminateCallback)(JSContextRef ctx, void *context);
 273 extern "C" void JSContextGroupSetExecutionTimeLimit(JSContextGroupRef, double limit, JSShouldTerminateCallback, void *context) _weak;
 274
 275 #endif/*CYCRIPT_JAVASCRIPT_HPP*/