API/APICast.h

   1 // -*- mode: c++; c-basic-offset: 4 -*-
   2 /*
   3  * Copyright (C) 2006 Apple Computer, Inc.  All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
  15  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  17  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
  18  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  19  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  20  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  21  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  22  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  24  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  25  */
  26
  27 #ifndef APICast_h
  28 #define APICast_h
  29
  30 #include "ustring.h"
  31 #include "ExecState.h"
  32
  33 namespace KJS {
  34     class ExecState;
  35     class JSValue;
  36     class JSObject;
  37     class PropertyNameArray;
  38 }
  39
  40 typedef const struct OpaqueJSContext* JSContextRef;
  41 typedef struct OpaqueJSContext* JSGlobalContextRef;
  42 typedef struct OpaqueJSString* JSStringRef;
  43 typedef struct OpaqueJSPropertyNameAccumulator* JSPropertyNameAccumulatorRef;
  44 typedef const struct OpaqueJSValue* JSValueRef;
  45 typedef struct OpaqueJSValue* JSObjectRef;
  46
  47 /* Opaque typing convenience methods */
  48
  49 inline KJS::ExecState* toJS(JSContextRef c)
  50 {
  51     return reinterpret_cast<KJS::ExecState*>(const_cast<OpaqueJSContext*>(c));
  52 }
  53
  54 inline KJS::ExecState* toJS(JSGlobalContextRef c)
  55 {
  56     return reinterpret_cast<KJS::ExecState*>(c);
  57 }
  58
  59 inline KJS::JSValue* toJS(JSValueRef v)
  60 {
  61     return reinterpret_cast<KJS::JSValue*>(const_cast<OpaqueJSValue*>(v));
  62 }
  63
  64 inline KJS::UString::Rep* toJS(JSStringRef b)
  65 {
  66     return reinterpret_cast<KJS::UString::Rep*>(b);
  67 }
  68
  69 inline KJS::JSObject* toJS(JSObjectRef o)
  70 {
  71     return reinterpret_cast<KJS::JSObject*>(o);
  72 }
  73
  74 inline KJS::PropertyNameArray* toJS(JSPropertyNameAccumulatorRef a)
  75 {
  76     return reinterpret_cast<KJS::PropertyNameArray*>(a);
  77 }
  78
  79 inline JSValueRef toRef(KJS::JSValue* v)
  80 {
  81     return reinterpret_cast<JSValueRef>(v);
  82 }
  83
  84 inline JSValueRef* toRef(KJS::JSValue** v)
  85 {
  86     return reinterpret_cast<JSValueRef*>(const_cast<const KJS::JSValue**>(v));
  87 }
  88
  89 inline JSStringRef toRef(KJS::UString::Rep* s)
  90 {
  91     return reinterpret_cast<JSStringRef>(s);
  92 }
  93
  94 inline JSObjectRef toRef(KJS::JSObject* o)
  95 {
  96     return reinterpret_cast<JSObjectRef>(o);
  97 }
  98
  99 inline JSObjectRef toRef(const KJS::JSObject* o)
 100 {
 101     return reinterpret_cast<JSObjectRef>(const_cast<KJS::JSObject*>(o));
 102 }
 103
 104 inline JSContextRef toRef(KJS::ExecState* e)
 105 {
 106     return reinterpret_cast<JSContextRef>(e);
 107 }
 108
 109 inline JSGlobalContextRef toGlobalRef(KJS::ExecState* e)
 110 {
 111     ASSERT(!e->callingExecState());
 112     return reinterpret_cast<JSGlobalContextRef>(e);
 113 }
 114
 115 inline JSPropertyNameAccumulatorRef toRef(KJS::PropertyNameArray* l)
 116 {
 117     return reinterpret_cast<JSPropertyNameAccumulatorRef>(l);
 118 }
 119
 120 #endif // APICast_h