JavaScript.hpp

   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 #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
  67 #ifndef __ANDROID__
  68 void CYCancel();
  69 #endif
  70
  71 void CYSetArgs(int argc, const char *argv[]);
  72
  73 bool CYCastBool(JSContextRef context, JSValueRef value);
  74 double CYCastDouble(JSContextRef context, JSValueRef value);
  75
  76 bool CYIsEqual(JSContextRef context, JSValueRef lhs, JSValueRef rhs);
  77 bool CYIsStrictEqual(JSContextRef context, JSValueRef lhs, JSValueRef rhs);
  78
  79 CYUTF16String CYCastUTF16String(JSStringRef value);
  80 CYUTF8String CYPoolUTF8String(CYPool &pool, JSContextRef context, JSStringRef value);
  81 const char *CYPoolCString(CYPool &pool, JSContextRef context, JSStringRef value);
  82
  83 bool CYHasProperty(JSContextRef context, JSObjectRef object, JSStringRef name);
  84 JSValueRef CYGetProperty(JSContextRef context, JSObjectRef object, size_t index);
  85 JSValueRef CYGetProperty(JSContextRef context, JSObjectRef object, JSStringRef name);
  86
  87 void CYSetProperty(JSContextRef context, JSObjectRef object, size_t index, JSValueRef value);
  88 void CYSetProperty(JSContextRef context, JSObjectRef object, JSStringRef name, JSValueRef value, JSPropertyAttributes attributes = kJSPropertyAttributeNone);
  89 void CYSetProperty(JSContextRef context, JSObjectRef object, JSStringRef name, JSValueRef (*callback)(JSContextRef, JSObjectRef, JSObjectRef, size_t, const JSValueRef[], JSValueRef *), JSPropertyAttributes attributes = kJSPropertyAttributeNone);
  90
  91 JSObjectRef CYGetPrototype(JSContextRef context, JSObjectRef object);
  92 void CYSetPrototype(JSContextRef context, JSObjectRef object, JSValueRef prototype);
  93
  94 JSValueRef CYGetCachedValue(JSContextRef context, JSStringRef name);
  95 JSObjectRef CYGetCachedObject(JSContextRef context, JSStringRef name);
  96
  97 JSValueRef CYCastJSValue(JSContextRef context, bool value);
  98 JSValueRef CYCastJSValue(JSContextRef context, double value);
  99
 100 JSValueRef CYCastJSValue(JSContextRef context, signed short int value);
 101 JSValueRef CYCastJSValue(JSContextRef context, unsigned short int value);
 102 JSValueRef CYCastJSValue(JSContextRef context, signed int value);
 103 JSValueRef CYCastJSValue(JSContextRef context, unsigned int value);
 104 JSValueRef CYCastJSValue(JSContextRef context, signed long int value);
 105 JSValueRef CYCastJSValue(JSContextRef context, unsigned long int value);
 106 JSValueRef CYCastJSValue(JSContextRef context, signed long long int value);
 107 JSValueRef CYCastJSValue(JSContextRef context, unsigned long long int value);
 108
 109 JSValueRef CYCastJSValue(JSContextRef context, JSStringRef value);
 110 JSValueRef CYCastJSValue(JSContextRef context, const char *value);
 111
 112 JSObjectRef CYCastJSObject(JSContextRef context, JSValueRef value);
 113 JSValueRef CYJSUndefined(JSContextRef context);
 114 JSValueRef CYJSNull(JSContextRef context);
 115
 116 void *CYCastPointer_(JSContextRef context, JSValueRef value, bool *guess = NULL);
 117
 118 template <typename Type_>
 119 _finline Type_ CYCastPointer(JSContextRef context, JSValueRef value, bool *guess = NULL) {
 120     return reinterpret_cast<Type_>(CYCastPointer_(context, value, guess));
 121 }
 122
 123 void CYCallFunction(CYPool &pool, JSContextRef context, ffi_cif *cif, void (*function)(), void *value, void **values);
 124 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)());
 125
 126 bool CYIsCallable(JSContextRef context, JSValueRef value);
 127 JSValueRef CYCallAsFunction(JSContextRef context, JSObjectRef function, JSObjectRef _this, size_t count, const JSValueRef arguments[]);
 128
 129 const char *CYPoolCCYON(CYPool &pool, JSContextRef context, JSObjectRef object, std::set<void *> &objects);
 130 std::set<void *> *CYCastObjects(JSContextRef context, JSObjectRef _this, size_t count, const JSValueRef arguments[]);
 131
 132 struct CYHook {
 133     void *(*ExecuteStart)(JSContextRef);
 134     void (*ExecuteEnd)(JSContextRef, void *);
 135
 136     void (*CallFunction)(CYPool &, JSContextRef, ffi_cif *, void (*)(), void *, void **);
 137
 138     void (*Initialize)();
 139     void (*SetupContext)(JSContextRef);
 140
 141     void *(*CastSymbol)(const char *);
 142 };
 143
 144 struct CYRegisterHook {
 145     CYRegisterHook(CYHook *hook);
 146 };
 147
 148 JSObjectRef CYMakePointer(JSContextRef context, void *pointer, const sig::Type &type, ffi_type *ffi, JSObjectRef owner);
 149
 150 JSObjectRef CYMakeType(JSContextRef context, const sig::Type &type);
 151
 152 void CYFinalize(JSObjectRef object);
 153
 154 JSObjectRef CYObjectMakeArray(JSContextRef context, size_t length, const JSValueRef values[]);
 155
 156 size_t CYArrayLength(JSContextRef context, JSObjectRef array);
 157 JSValueRef CYArrayGet(JSContextRef context, JSObjectRef array, size_t index);
 158
 159 void CYArrayPush(JSContextRef context, JSObjectRef array, size_t length, const JSValueRef arguments[]);
 160 void CYArrayPush(JSContextRef context, JSObjectRef array, JSValueRef value);
 161
 162 bool CYGetOffset(CYPool &pool, JSContextRef context, JSStringRef value, ssize_t &index);
 163
 164 const char *CYPoolCString(CYPool &pool, JSContextRef context, JSValueRef value);
 165
 166 JSStringRef CYCopyJSString(const char *value);
 167 JSStringRef CYCopyJSString(JSStringRef value);
 168 JSStringRef CYCopyJSString(CYUTF8String value);
 169 JSStringRef CYCopyJSString(const std::string &value);
 170 JSStringRef CYCopyJSString(CYUTF16String value);
 171 JSStringRef CYCopyJSString(JSContextRef context, JSValueRef value);
 172
 173 void CYGarbageCollect(JSContextRef context);
 174 void CYDestroyContext();
 175
 176 class CYJSString {
 177   private:
 178     JSStringRef string_;
 179
 180     void Clear_() {
 181         if (string_ != NULL)
 182             JSStringRelease(string_);
 183     }
 184
 185   public:
 186     CYJSString(const CYJSString &rhs) :
 187         string_(CYCopyJSString(rhs.string_))
 188     {
 189     }
 190
 191     template <typename Arg0_>
 192     CYJSString(Arg0_ arg0) :
 193         string_(CYCopyJSString(arg0))
 194     {
 195     }
 196
 197     template <typename Arg0_, typename Arg1_>
 198     CYJSString(Arg0_ arg0, Arg1_ arg1) :
 199         string_(CYCopyJSString(arg0, arg1))
 200     {
 201     }
 202
 203     CYJSString &operator =(const CYJSString &rhs) {
 204         Clear_();
 205         string_ = CYCopyJSString(rhs.string_);
 206         return *this;
 207     }
 208
 209     ~CYJSString() {
 210         Clear_();
 211     }
 212
 213     void Clear() {
 214         Clear_();
 215         string_ = NULL;
 216     }
 217
 218     operator JSStringRef() const {
 219         return string_;
 220     }
 221 };
 222
 223 template <size_t Size_>
 224 class CYArrayBuilder {
 225   private:
 226     JSContextRef context_;
 227     JSObjectRef &array_;
 228     size_t size_;
 229     JSValueRef values_[Size_];
 230
 231     void flush() {
 232         if (array_ == NULL)
 233             array_ = CYObjectMakeArray(context_, size_, values_);
 234         else
 235             CYArrayPush(context_, array_, size_, values_);
 236     }
 237
 238   public:
 239     CYArrayBuilder(JSContextRef context, JSObjectRef &array) :
 240         context_(context),
 241         array_(array),
 242         size_(0)
 243     {
 244     }
 245
 246     ~CYArrayBuilder() {
 247         flush();
 248     }
 249
 250     void operator ()(JSValueRef value) {
 251         if (size_ == Size_) {
 252             flush();
 253             size_ = 0;
 254         }
 255
 256         values_[size_++] = value;
 257     }
 258 };
 259
 260 #ifdef __APPLE__
 261 #define _weak __attribute__((__weak_import__));
 262 #else
 263 #define _weak
 264 #endif
 265
 266 typedef struct OpaqueJSWeakObjectMap *JSWeakObjectMapRef;
 267 typedef void (*JSWeakMapDestroyedCallback)(JSWeakObjectMapRef map, void *data);
 268
 269 extern "C" JSWeakObjectMapRef JSWeakObjectMapCreate(JSContextRef ctx, void *data, JSWeakMapDestroyedCallback destructor) _weak;
 270 extern "C" void JSWeakObjectMapSet(JSContextRef ctx, JSWeakObjectMapRef map, void *key, JSObjectRef) _weak;
 271 extern "C" JSObjectRef JSWeakObjectMapGet(JSContextRef ctx, JSWeakObjectMapRef map, void *key) _weak;
 272 extern "C" bool JSWeakObjectMapClear(JSContextRef ctx, JSWeakObjectMapRef map, void *key, JSObjectRef object) _weak;
 273 extern "C" void JSWeakObjectMapRemove(JSContextRef ctx, JSWeakObjectMapRef map, void* key) _weak;
 274
 275 typedef bool (*JSShouldTerminateCallback)(JSContextRef ctx, void *context);
 276 extern "C" void JSContextGroupSetExecutionTimeLimit(JSContextGroupRef, double limit, JSShouldTerminateCallback, void *context) _weak;
 277
 278 #endif/*CYCRIPT_JAVASCRIPT_HPP*/