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
  27 #include <JavaScriptCore/JSBase.h>
  28 #include <JavaScriptCore/JSContextRef.h>
  29 #include <JavaScriptCore/JSStringRef.h>
  30 #include <JavaScriptCore/JSObjectRef.h>
  31 #include <JavaScriptCore/JSValueRef.h>
  32
  33 #ifdef HAVE_FFI_FFI_H
  34 #include <ffi/ffi.h>
  35 #else
  36 #include <ffi.h>
  37 #endif
  38
  39 #include "Pooling.hpp"
  40 #include "String.hpp"
  41
  42 extern JSStringRef Array_s;
  43 extern JSStringRef cy_s;
  44 extern JSStringRef cyi_s;
  45 extern JSStringRef length_s;
  46 extern JSStringRef message_s;
  47 extern JSStringRef name_s;
  48 extern JSStringRef pop_s;
  49 extern JSStringRef prototype_s;
  50 extern JSStringRef push_s;
  51 extern JSStringRef splice_s;
  52 extern JSStringRef toCYON_s;
  53 extern JSStringRef toJSON_s;
  54 extern JSStringRef toPointer_s;
  55 extern JSStringRef toString_s;
  56 extern JSStringRef weak_s;
  57
  58 void CYInitializeDynamic();
  59 JSGlobalContextRef CYGetJSContext();
  60 JSObjectRef CYGetGlobalObject(JSContextRef context);
  61
  62 extern "C" void CYSetupContext(JSGlobalContextRef context);
  63 const char *CYExecute(JSContextRef context, CYPool &pool, CYUTF8String code);
  64
  65 void CYSetArgs(int argc, const char *argv[]);
  66
  67 bool CYCastBool(JSContextRef context, JSValueRef value);
  68 double CYCastDouble(JSContextRef context, JSValueRef value);
  69
  70 bool CYIsEqual(JSContextRef context, JSValueRef lhs, JSValueRef rhs);
  71 bool CYIsStrictEqual(JSContextRef context, JSValueRef lhs, JSValueRef rhs);
  72
  73 CYUTF8String CYPoolUTF8String(CYPool &pool, JSContextRef context, JSStringRef value);
  74 const char *CYPoolCString(CYPool &pool, JSContextRef context, JSStringRef value);
  75
  76 bool CYHasProperty(JSContextRef context, JSObjectRef object, JSStringRef name);
  77 JSValueRef CYGetProperty(JSContextRef context, JSObjectRef object, size_t index);
  78 JSValueRef CYGetProperty(JSContextRef context, JSObjectRef object, JSStringRef name);
  79
  80 void CYSetProperty(JSContextRef context, JSObjectRef object, size_t index, JSValueRef value);
  81 void CYSetProperty(JSContextRef context, JSObjectRef object, JSStringRef name, JSValueRef value, JSPropertyAttributes attributes = kJSPropertyAttributeNone);
  82 void CYSetProperty(JSContextRef context, JSObjectRef object, JSStringRef name, JSValueRef (*callback)(JSContextRef, JSObjectRef, JSObjectRef, size_t, const JSValueRef[], JSValueRef *), JSPropertyAttributes attributes = kJSPropertyAttributeNone);
  83
  84 void CYSetPrototype(JSContextRef context, JSObjectRef object, JSValueRef prototype);
  85
  86 JSValueRef CYGetCachedValue(JSContextRef context, JSStringRef name);
  87 JSObjectRef CYGetCachedObject(JSContextRef context, JSStringRef name);
  88
  89 JSValueRef CYCastJSValue(JSContextRef context, bool value);
  90 JSValueRef CYCastJSValue(JSContextRef context, double value);
  91 JSValueRef CYCastJSValue(JSContextRef context, int value);
  92 JSValueRef CYCastJSValue(JSContextRef context, unsigned int value);
  93 JSValueRef CYCastJSValue(JSContextRef context, long int value);
  94 JSValueRef CYCastJSValue(JSContextRef context, long unsigned int value);
  95 JSValueRef CYCastJSValue(JSContextRef context, long long int value);
  96 JSValueRef CYCastJSValue(JSContextRef context, long long unsigned int value);
  97
  98 JSValueRef CYCastJSValue(JSContextRef context, JSStringRef value);
  99 JSValueRef CYCastJSValue(JSContextRef context, const char *value);
 100
 101 JSObjectRef CYCastJSObject(JSContextRef context, JSValueRef value);
 102 JSValueRef CYJSUndefined(JSContextRef context);
 103 JSValueRef CYJSNull(JSContextRef context);
 104
 105 void *CYCastPointer_(JSContextRef context, JSValueRef value);
 106
 107 template <typename Type_>
 108 _finline Type_ CYCastPointer(JSContextRef context, JSValueRef value) {
 109     return reinterpret_cast<Type_>(CYCastPointer_(context, value));
 110 }
 111
 112 void CYPoolFFI(CYPool *pool, JSContextRef context, sig::Type *type, ffi_type *ffi, void *data, JSValueRef value);
 113 JSValueRef CYFromFFI(JSContextRef context, sig::Type *type, ffi_type *ffi, void *data, bool initialize = false, JSObjectRef owner = NULL);
 114
 115 JSValueRef CYCallFunction(CYPool &pool, JSContextRef context, size_t setups, void *setup[], size_t count, const JSValueRef arguments[], bool initialize, sig::Signature *signature, ffi_cif *cif, void (*function)());
 116
 117 bool CYIsCallable(JSContextRef context, JSValueRef value);
 118 JSValueRef CYCallAsFunction(JSContextRef context, JSObjectRef function, JSObjectRef _this, size_t count, const JSValueRef arguments[]);
 119
 120 const char *CYPoolCCYON(CYPool &pool, JSContextRef context, JSObjectRef object, std::set<void *> &objects);
 121 std::set<void *> *CYCastObjects(JSContextRef context, JSObjectRef _this, size_t count, const JSValueRef arguments[]);
 122
 123 struct CYHook {
 124     void *(*ExecuteStart)(JSContextRef);
 125     void (*ExecuteEnd)(JSContextRef, void *);
 126
 127     void (*CallFunction)(JSContextRef, ffi_cif *, void (*)(), uint8_t *, void **);
 128
 129     void (*Initialize)();
 130     void (*SetupContext)(JSContextRef);
 131
 132     bool (*PoolFFI)(CYPool *, JSContextRef, sig::Type *, ffi_type *, void *, JSValueRef);
 133     JSValueRef (*FromFFI)(JSContextRef, sig::Type *, ffi_type *, void *, bool, JSObjectRef);
 134
 135     void *(*CastSymbol)(const char *);
 136 };
 137
 138 struct CYRegisterHook {
 139     CYRegisterHook(CYHook *hook);
 140 };
 141
 142 JSObjectRef CYMakePointer(JSContextRef context, void *pointer, size_t length, sig::Type *type, ffi_type *ffi, JSObjectRef owner);
 143
 144 JSObjectRef CYMakeType(JSContextRef context, sig::Type *type);
 145 JSObjectRef CYMakeType(JSContextRef context, sig::Signature *signature);
 146
 147 void CYFinalize(JSObjectRef object);
 148
 149 size_t CYArrayLength(JSContextRef context, JSObjectRef array);
 150 JSValueRef CYArrayGet(JSContextRef context, JSObjectRef array, size_t index);
 151 void CYArrayPush(JSContextRef context, JSObjectRef array, JSValueRef value);
 152
 153 const char *CYPoolCString(CYPool &pool, JSContextRef context, JSValueRef value);
 154
 155 JSStringRef CYCopyJSString(const char *value);
 156 JSStringRef CYCopyJSString(JSStringRef value);
 157 JSStringRef CYCopyJSString(CYUTF8String value);
 158 JSStringRef CYCopyJSString(JSContextRef context, JSValueRef value);
 159
 160 void CYGarbageCollect(JSContextRef context);
 161 void CYDestroyContext();
 162
 163 class CYJSString {
 164   private:
 165     JSStringRef string_;
 166
 167     void Clear_() {
 168         if (string_ != NULL)
 169             JSStringRelease(string_);
 170     }
 171
 172   public:
 173     CYJSString(const CYJSString &rhs) :
 174         string_(CYCopyJSString(rhs.string_))
 175     {
 176     }
 177
 178     template <typename Arg0_>
 179     CYJSString(Arg0_ arg0) :
 180         string_(CYCopyJSString(arg0))
 181     {
 182     }
 183
 184     template <typename Arg0_, typename Arg1_>
 185     CYJSString(Arg0_ arg0, Arg1_ arg1) :
 186         string_(CYCopyJSString(arg0, arg1))
 187     {
 188     }
 189
 190     CYJSString &operator =(const CYJSString &rhs) {
 191         Clear_();
 192         string_ = CYCopyJSString(rhs.string_);
 193         return *this;
 194     }
 195
 196     ~CYJSString() {
 197         Clear_();
 198     }
 199
 200     void Clear() {
 201         Clear_();
 202         string_ = NULL;
 203     }
 204
 205     operator JSStringRef() const {
 206         return string_;
 207     }
 208 };
 209
 210 #ifdef __APPLE__
 211 typedef struct OpaqueJSWeakObjectMap *JSWeakObjectMapRef;
 212 typedef void (*JSWeakMapDestroyedCallback)(JSWeakObjectMapRef map, void *data);
 213
 214 extern "C" JSWeakObjectMapRef JSWeakObjectMapCreate(JSContextRef ctx, void *data, JSWeakMapDestroyedCallback destructor) __attribute__((__weak_import__));
 215 extern "C" void JSWeakObjectMapSet(JSContextRef ctx, JSWeakObjectMapRef map, void *key, JSObjectRef) __attribute__((__weak_import__));
 216 extern "C" JSObjectRef JSWeakObjectMapGet(JSContextRef ctx, JSWeakObjectMapRef map, void *key) __attribute__((__weak_import__));
 217 extern "C" bool JSWeakObjectMapClear(JSContextRef ctx, JSWeakObjectMapRef map, void *key, JSObjectRef object) __attribute__((__weak_import__));
 218 extern "C" void JSWeakObjectMapRemove(JSContextRef ctx, JSWeakObjectMapRef map, void* key) __attribute__((__weak_import__));
 219 #endif
 220
 221 #endif/*CYCRIPT_JAVASCRIPT_HPP*/