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 "JSAPIValueWrapper.h" 30#include "JSGlobalObject.h" 31#include "JSValue.h" 32#include <wtf/UnusedParam.h> 33 34namespace JSC { 35 class ExecState; 36 class PropertyNameArray; 37 class JSGlobalData; 38 class JSObject; 39 class JSValue; 40} 41 42typedef const struct OpaqueJSContextGroup* JSContextGroupRef; 43typedef const struct OpaqueJSContext* JSContextRef; 44typedef struct OpaqueJSContext* JSGlobalContextRef; 45typedef struct OpaqueJSPropertyNameAccumulator* JSPropertyNameAccumulatorRef; 46typedef const struct OpaqueJSValue* JSValueRef; 47typedef struct OpaqueJSValue* JSObjectRef; 48 49/* Opaque typing convenience methods */ 50 51inline JSC::ExecState* toJS(JSContextRef c) 52{ 53 ASSERT(c); 54 return reinterpret_cast<JSC::ExecState*>(const_cast<OpaqueJSContext*>(c)); 55} 56 57inline JSC::ExecState* toJS(JSGlobalContextRef c) 58{ 59 ASSERT(c); 60 return reinterpret_cast<JSC::ExecState*>(c); 61} 62 63inline JSC::JSValue toJS(JSC::ExecState* exec, JSValueRef v) 64{ 65 ASSERT_UNUSED(exec, exec); 66 ASSERT(v); 67#if USE(JSVALUE32_64) 68 JSC::JSCell* jsCell = reinterpret_cast<JSC::JSCell*>(const_cast<OpaqueJSValue*>(v)); 69 if (!jsCell) 70 return JSC::JSValue(); 71 if (jsCell->isAPIValueWrapper()) 72 return static_cast<JSC::JSAPIValueWrapper*>(jsCell)->value(); 73 return jsCell; 74#else 75 return JSC::JSValue::decode(reinterpret_cast<JSC::EncodedJSValue>(const_cast<OpaqueJSValue*>(v))); 76#endif 77} 78 79inline JSC::JSValue toJSForGC(JSC::ExecState* exec, JSValueRef v) 80{ 81 ASSERT_UNUSED(exec, exec); 82 ASSERT(v); 83#if USE(JSVALUE32_64) 84 JSC::JSCell* jsCell = reinterpret_cast<JSC::JSCell*>(const_cast<OpaqueJSValue*>(v)); 85 if (!jsCell) 86 return JSC::JSValue(); 87 return jsCell; 88#else 89 return JSC::JSValue::decode(reinterpret_cast<JSC::EncodedJSValue>(const_cast<OpaqueJSValue*>(v))); 90#endif 91} 92 93inline JSC::JSObject* toJS(JSObjectRef o) 94{ 95 return reinterpret_cast<JSC::JSObject*>(o); 96} 97 98inline JSC::PropertyNameArray* toJS(JSPropertyNameAccumulatorRef a) 99{ 100 return reinterpret_cast<JSC::PropertyNameArray*>(a); 101} 102 103inline JSC::JSGlobalData* toJS(JSContextGroupRef g) 104{ 105 return reinterpret_cast<JSC::JSGlobalData*>(const_cast<OpaqueJSContextGroup*>(g)); 106} 107 108inline JSValueRef toRef(JSC::ExecState* exec, JSC::JSValue v) 109{ 110#if USE(JSVALUE32_64) 111 if (!v) 112 return 0; 113 if (!v.isCell()) 114 return reinterpret_cast<JSValueRef>(JSC::jsAPIValueWrapper(exec, v).asCell()); 115 return reinterpret_cast<JSValueRef>(v.asCell()); 116#else 117 UNUSED_PARAM(exec); 118 return reinterpret_cast<JSValueRef>(JSC::JSValue::encode(v)); 119#endif 120} 121 122inline JSObjectRef toRef(JSC::JSObject* o) 123{ 124 return reinterpret_cast<JSObjectRef>(o); 125} 126 127inline JSObjectRef toRef(const JSC::JSObject* o) 128{ 129 return reinterpret_cast<JSObjectRef>(const_cast<JSC::JSObject*>(o)); 130} 131 132inline JSContextRef toRef(JSC::ExecState* e) 133{ 134 return reinterpret_cast<JSContextRef>(e); 135} 136 137inline JSGlobalContextRef toGlobalRef(JSC::ExecState* e) 138{ 139 ASSERT(e == e->lexicalGlobalObject()->globalExec()); 140 return reinterpret_cast<JSGlobalContextRef>(e); 141} 142 143inline JSPropertyNameAccumulatorRef toRef(JSC::PropertyNameArray* l) 144{ 145 return reinterpret_cast<JSPropertyNameAccumulatorRef>(l); 146} 147 148inline JSContextGroupRef toRef(JSC::JSGlobalData* g) 149{ 150 return reinterpret_cast<JSContextGroupRef>(g); 151} 152 153#endif // APICast_h 154