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
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 ASSERT(c);
54 return reinterpret_cast<JSC::ExecState*>(const_cast<OpaqueJSContext*>(c));
55 }
56
toJS(JSGlobalContextRef c)57 inline JSC::ExecState* toJS(JSGlobalContextRef c)
58 {
59 ASSERT(c);
60 return reinterpret_cast<JSC::ExecState*>(c);
61 }
62
toJS(JSC::ExecState * exec,JSValueRef v)63 inline 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
toJSForGC(JSC::ExecState * exec,JSValueRef v)79 inline 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
toJS(JSObjectRef o)93 inline JSC::JSObject* toJS(JSObjectRef o)
94 {
95 return reinterpret_cast<JSC::JSObject*>(o);
96 }
97
toJS(JSPropertyNameAccumulatorRef a)98 inline JSC::PropertyNameArray* toJS(JSPropertyNameAccumulatorRef a)
99 {
100 return reinterpret_cast<JSC::PropertyNameArray*>(a);
101 }
102
toJS(JSContextGroupRef g)103 inline JSC::JSGlobalData* toJS(JSContextGroupRef g)
104 {
105 return reinterpret_cast<JSC::JSGlobalData*>(const_cast<OpaqueJSContextGroup*>(g));
106 }
107
toRef(JSC::ExecState * exec,JSC::JSValue v)108 inline 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
toRef(JSC::JSObject * o)122 inline JSObjectRef toRef(JSC::JSObject* o)
123 {
124 return reinterpret_cast<JSObjectRef>(o);
125 }
126
toRef(const JSC::JSObject * o)127 inline JSObjectRef toRef(const JSC::JSObject* o)
128 {
129 return reinterpret_cast<JSObjectRef>(const_cast<JSC::JSObject*>(o));
130 }
131
toRef(JSC::ExecState * e)132 inline JSContextRef toRef(JSC::ExecState* e)
133 {
134 return reinterpret_cast<JSContextRef>(e);
135 }
136
toGlobalRef(JSC::ExecState * e)137 inline JSGlobalContextRef toGlobalRef(JSC::ExecState* e)
138 {
139 ASSERT(e == e->lexicalGlobalObject()->globalExec());
140 return reinterpret_cast<JSGlobalContextRef>(e);
141 }
142
toRef(JSC::PropertyNameArray * l)143 inline JSPropertyNameAccumulatorRef toRef(JSC::PropertyNameArray* l)
144 {
145 return reinterpret_cast<JSPropertyNameAccumulatorRef>(l);
146 }
147
toRef(JSC::JSGlobalData * g)148 inline JSContextGroupRef toRef(JSC::JSGlobalData* g)
149 {
150 return reinterpret_cast<JSContextGroupRef>(g);
151 }
152
153 #endif // APICast_h
154