JavaScript.hpp

   1 /* Cycript - Optimizing JavaScript Compiler/Runtime
   2  * Copyright (C) 2009-2013  Jay Freeman (saurik)
   3 */
   4
   5 /* GNU General Public License, Version 3 {{{ */
   6 /*
   7  * Cycript is free software: you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published
   9  * by the Free Software Foundation, either version 3 of the License,
  10  * or (at your option) any later version.
  11  *
  12  * Cycript is distributed in the hope that it will be useful, but
  13  * WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with Cycript.  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
  57 void CYInitializeDynamic();
  58 JSGlobalContextRef CYGetJSContext();
  59 JSObjectRef CYGetGlobalObject(JSContextRef context);
  60
  61 extern "C" void CYSetupContext(JSGlobalContextRef context);
  62 const char *CYExecute(JSContextRef context, CYPool &pool, CYUTF8String code);
  63
  64 void CYSetArgs(int argc, const char *argv[]);
  65
  66 bool CYCastBool(JSContextRef context, JSValueRef value);
  67 double CYCastDouble(JSContextRef context, JSValueRef value);
  68
  69 CYUTF8String CYPoolUTF8String(CYPool &pool, JSContextRef context, JSStringRef value);
  70 const char *CYPoolCString(CYPool &pool, JSContextRef context, JSStringRef value);
  71
  72 bool CYHasProperty(JSContextRef context, JSObjectRef object, JSStringRef name);
  73 JSValueRef CYGetProperty(JSContextRef context, JSObjectRef object, size_t index);
  74 JSValueRef CYGetProperty(JSContextRef context, JSObjectRef object, JSStringRef name);
  75
  76 void CYSetProperty(JSContextRef context, JSObjectRef object, size_t index, JSValueRef value);
  77 void CYSetProperty(JSContextRef context, JSObjectRef object, JSStringRef name, JSValueRef value, JSPropertyAttributes attributes = kJSPropertyAttributeNone);
  78 void CYSetProperty(JSContextRef context, JSObjectRef object, JSStringRef name, JSValueRef (*callback)(JSContextRef, JSObjectRef, JSObjectRef, size_t, const JSValueRef[], JSValueRef *), JSPropertyAttributes attributes = kJSPropertyAttributeNone);
  79
  80 void CYSetPrototype(JSContextRef context, JSObjectRef object, JSValueRef prototype);
  81
  82 JSObjectRef CYGetCachedObject(JSContextRef context, JSStringRef name);
  83
  84 JSValueRef CYCastJSValue(JSContextRef context, bool value);
  85 JSValueRef CYCastJSValue(JSContextRef context, double value);
  86 JSValueRef CYCastJSValue(JSContextRef context, int value);
  87 JSValueRef CYCastJSValue(JSContextRef context, unsigned int value);
  88 JSValueRef CYCastJSValue(JSContextRef context, long int value);
  89 JSValueRef CYCastJSValue(JSContextRef context, long unsigned int value);
  90 JSValueRef CYCastJSValue(JSContextRef context, long long int value);
  91 JSValueRef CYCastJSValue(JSContextRef context, long long unsigned int value);
  92
  93 JSValueRef CYCastJSValue(JSContextRef context, JSStringRef value);
  94 JSValueRef CYCastJSValue(JSContextRef context, const char *value);
  95
  96 JSObjectRef CYCastJSObject(JSContextRef context, JSValueRef value);
  97 JSValueRef CYJSUndefined(JSContextRef context);
  98 JSValueRef CYJSNull(JSContextRef context);
  99
 100 void *CYCastPointer_(JSContextRef context, JSValueRef value);
 101
 102 template <typename Type_>
 103 _finline Type_ CYCastPointer(JSContextRef context, JSValueRef value) {
 104     return reinterpret_cast<Type_>(CYCastPointer_(context, value));
 105 }
 106
 107 void CYPoolFFI(CYPool *pool, JSContextRef context, sig::Type *type, ffi_type *ffi, void *data, JSValueRef value);
 108 JSValueRef CYFromFFI(JSContextRef context, sig::Type *type, ffi_type *ffi, void *data, bool initialize = false, JSObjectRef owner = NULL);
 109
 110 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)());
 111
 112 bool CYIsCallable(JSContextRef context, JSValueRef value);
 113 JSValueRef CYCallAsFunction(JSContextRef context, JSObjectRef function, JSObjectRef _this, size_t count, const JSValueRef arguments[]);
 114
 115 const char *CYPoolCCYON(CYPool &pool, JSContextRef context, JSObjectRef object, std::set<void *> &objects);
 116 std::set<void *> *CYCastObjects(JSContextRef context, JSObjectRef _this, size_t count, const JSValueRef arguments[]);
 117
 118 struct CYHooks {
 119     void *(*ExecuteStart)(JSContextRef);
 120     void (*ExecuteEnd)(JSContextRef, void *);
 121
 122     void (*CallFunction)(JSContextRef, ffi_cif *, void (*)(), uint8_t *, void **);
 123
 124     void (*Initialize)();
 125     void (*SetupContext)(JSContextRef);
 126
 127     bool (*PoolFFI)(CYPool *, JSContextRef, sig::Type *, ffi_type *, void *, JSValueRef);
 128     JSValueRef (*FromFFI)(JSContextRef, sig::Type *, ffi_type *, void *, bool, JSObjectRef);
 129 };
 130
 131 extern struct CYHooks *hooks_;
 132
 133 JSObjectRef CYMakePointer(JSContextRef context, void *pointer, size_t length, sig::Type *type, ffi_type *ffi, JSObjectRef owner);
 134
 135 JSObjectRef CYMakeType(JSContextRef context, const char *encoding);
 136 JSObjectRef CYMakeType(JSContextRef context, sig::Type *type);
 137 JSObjectRef CYMakeType(JSContextRef context, sig::Signature *signature);
 138
 139 void CYFinalize(JSObjectRef object);
 140
 141 size_t CYArrayLength(JSContextRef context, JSObjectRef array);
 142 JSValueRef CYArrayGet(JSContextRef context, JSObjectRef array, size_t index);
 143 void CYArrayPush(JSContextRef context, JSObjectRef array, JSValueRef value);
 144
 145 const char *CYPoolCString(CYPool &pool, JSContextRef context, JSValueRef value);
 146
 147 JSStringRef CYCopyJSString(const char *value);
 148 JSStringRef CYCopyJSString(JSStringRef value);
 149 JSStringRef CYCopyJSString(CYUTF8String value);
 150 JSStringRef CYCopyJSString(JSContextRef context, JSValueRef value);
 151
 152 void CYGarbageCollect(JSContextRef context);
 153 void CYDestroyContext();
 154
 155 class CYJSString {
 156   private:
 157     JSStringRef string_;
 158
 159     void Clear_() {
 160         if (string_ != NULL)
 161             JSStringRelease(string_);
 162     }
 163
 164   public:
 165     CYJSString(const CYJSString &rhs) :
 166         string_(CYCopyJSString(rhs.string_))
 167     {
 168     }
 169
 170     template <typename Arg0_>
 171     CYJSString(Arg0_ arg0) :
 172         string_(CYCopyJSString(arg0))
 173     {
 174     }
 175
 176     template <typename Arg0_, typename Arg1_>
 177     CYJSString(Arg0_ arg0, Arg1_ arg1) :
 178         string_(CYCopyJSString(arg0, arg1))
 179     {
 180     }
 181
 182     CYJSString &operator =(const CYJSString &rhs) {
 183         Clear_();
 184         string_ = CYCopyJSString(rhs.string_);
 185         return *this;
 186     }
 187
 188     ~CYJSString() {
 189         Clear_();
 190     }
 191
 192     void Clear() {
 193         Clear_();
 194         string_ = NULL;
 195     }
 196
 197     operator JSStringRef() const {
 198         return string_;
 199     }
 200 };
 201
 202 #endif/*CYCRIPT_JAVASCRIPT_HPP*/