API/APICast.h

   1 /*
   2  * Copyright (C) 2006 Apple Computer, Inc.  All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions
   6  * are met:
   7  * 1. Redistributions of source code must retain the above copyright
   8  *    notice, this list of conditions and the following disclaimer.
   9  * 2. Redistributions in binary form must reproduce the above copyright
  10  *    notice, this list of conditions and the following disclaimer in the
  11  *    documentation and/or other materials provided with the distribution.
  12  *
  13  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
  14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
  17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  24  */
  25
  26 #ifndef APICast_h
  27 #define APICast_h
  28
  29 #include "JSValue.h"
  30
  31 namespace JSC {
  32     class ExecState;
  33     class PropertyNameArray;
  34     class JSGlobalData;
  35     class JSObject;
  36     class JSValuePtr;
  37 }
  38
  39 typedef const struct OpaqueJSContextGroup* JSContextGroupRef;
  40 typedef const struct OpaqueJSContext* JSContextRef;
  41 typedef struct OpaqueJSContext* JSGlobalContextRef;
  42 typedef struct OpaqueJSPropertyNameAccumulator* JSPropertyNameAccumulatorRef;
  43 typedef const struct OpaqueJSValue* JSValueRef;
  44 typedef struct OpaqueJSValue* JSObjectRef;
  45
  46 /* Opaque typing convenience methods */
  47
  48 inline JSC::ExecState* toJS(JSContextRef c)
  49 {
  50     return reinterpret_cast<JSC::ExecState*>(const_cast<OpaqueJSContext*>(c));
  51 }
  52
  53 inline JSC::ExecState* toJS(JSGlobalContextRef c)
  54 {
  55     return reinterpret_cast<JSC::ExecState*>(c);
  56 }
  57
  58 inline JSC::JSValuePtr toJS(JSValueRef v)
  59 {
  60     return JSC::JSValuePtr::decode(reinterpret_cast<JSC::JSValueEncodedAsPointer*>(const_cast<OpaqueJSValue*>(v)));
  61 }
  62
  63 inline JSC::JSObject* toJS(JSObjectRef o)
  64 {
  65     return reinterpret_cast<JSC::JSObject*>(o);
  66 }
  67
  68 inline JSC::PropertyNameArray* toJS(JSPropertyNameAccumulatorRef a)
  69 {
  70     return reinterpret_cast<JSC::PropertyNameArray*>(a);
  71 }
  72
  73 inline JSC::JSGlobalData* toJS(JSContextGroupRef g)
  74 {
  75     return reinterpret_cast<JSC::JSGlobalData*>(const_cast<OpaqueJSContextGroup*>(g));
  76 }
  77
  78 inline JSValueRef toRef(JSC::JSValuePtr v)
  79 {
  80     return reinterpret_cast<JSValueRef>(JSC::JSValuePtr::encode(v));
  81 }
  82
  83 inline JSValueRef* toRef(JSC::JSValuePtr* v)
  84 {
  85     return reinterpret_cast<JSValueRef*>(v);
  86 }
  87
  88 inline JSObjectRef toRef(JSC::JSObject* o)
  89 {
  90     return reinterpret_cast<JSObjectRef>(o);
  91 }
  92
  93 inline JSObjectRef toRef(const JSC::JSObject* o)
  94 {
  95     return reinterpret_cast<JSObjectRef>(const_cast<JSC::JSObject*>(o));
  96 }
  97
  98 inline JSContextRef toRef(JSC::ExecState* e)
  99 {
 100     return reinterpret_cast<JSContextRef>(e);
 101 }
 102
 103 inline JSGlobalContextRef toGlobalRef(JSC::ExecState* e)
 104 {
 105     return reinterpret_cast<JSGlobalContextRef>(e);
 106 }
 107
 108 inline JSPropertyNameAccumulatorRef toRef(JSC::PropertyNameArray* l)
 109 {
 110     return reinterpret_cast<JSPropertyNameAccumulatorRef>(l);
 111 }
 112
 113 inline JSContextGroupRef toRef(JSC::JSGlobalData* g)
 114 {
 115     return reinterpret_cast<JSContextGroupRef>(g);
 116 }
 117
 118 #endif // APICast_h