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