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/Platform.h>
33 #include <wtf/UnusedParam.h>
34
35 namespace JSC {
36 class ExecState;
37 class PropertyNameArray;
38 class JSGlobalData;
39 class JSObject;
40 class JSValue;
41 }
42
43 typedef const struct OpaqueJSContextGroup* JSContextGroupRef;
44 typedef const struct OpaqueJSContext* JSContextRef;
45 typedef struct OpaqueJSContext* JSGlobalContextRef;
46 typedef struct OpaqueJSPropertyNameAccumulator* JSPropertyNameAccumulatorRef;
47 typedef const struct OpaqueJSValue* JSValueRef;
48 typedef struct OpaqueJSValue* JSObjectRef;
49
50 /* Opaque typing convenience methods */
51
toJS(JSContextRef c)52 inline JSC::ExecState* toJS(JSContextRef c)
53 {
54 ASSERT(c);
55 return reinterpret_cast<JSC::ExecState*>(const_cast<OpaqueJSContext*>(c));
56 }
57
toJS(JSGlobalContextRef c)58 inline JSC::ExecState* toJS(JSGlobalContextRef c)
59 {
60 ASSERT(c);
61 return reinterpret_cast<JSC::ExecState*>(c);
62 }
63
toJS(JSC::ExecState * exec,JSValueRef v)64 inline JSC::JSValue toJS(JSC::ExecState* exec, JSValueRef v)
65 {
66 ASSERT_UNUSED(exec, exec);
67 ASSERT(v);
68 #if USE(JSVALUE32_64)
69 JSC::JSCell* jsCell = reinterpret_cast<JSC::JSCell*>(const_cast<OpaqueJSValue*>(v));
70 if (!jsCell)
71 return JSC::JSValue();
72 if (jsCell->isAPIValueWrapper())
73 return static_cast<JSC::JSAPIValueWrapper*>(jsCell)->value();
74 return jsCell;
75 #else
76 return JSC::JSValue::decode(reinterpret_cast<JSC::EncodedJSValue>(const_cast<OpaqueJSValue*>(v)));
77 #endif
78 }
79
toJSForGC(JSC::ExecState * exec,JSValueRef v)80 inline JSC::JSValue toJSForGC(JSC::ExecState* exec, JSValueRef v)
81 {
82 ASSERT_UNUSED(exec, exec);
83 ASSERT(v);
84 #if USE(JSVALUE32_64)
85 JSC::JSCell* jsCell = reinterpret_cast<JSC::JSCell*>(const_cast<OpaqueJSValue*>(v));
86 if (!jsCell)
87 return JSC::JSValue();
88 return jsCell;
89 #else
90 return JSC::JSValue::decode(reinterpret_cast<JSC::EncodedJSValue>(const_cast<OpaqueJSValue*>(v)));
91 #endif
92 }
93
toJS(JSObjectRef o)94 inline JSC::JSObject* toJS(JSObjectRef o)
95 {
96 return reinterpret_cast<JSC::JSObject*>(o);
97 }
98
toJS(JSPropertyNameAccumulatorRef a)99 inline JSC::PropertyNameArray* toJS(JSPropertyNameAccumulatorRef a)
100 {
101 return reinterpret_cast<JSC::PropertyNameArray*>(a);
102 }
103
toJS(JSContextGroupRef g)104 inline JSC::JSGlobalData* toJS(JSContextGroupRef g)
105 {
106 return reinterpret_cast<JSC::JSGlobalData*>(const_cast<OpaqueJSContextGroup*>(g));
107 }
108
toRef(JSC::ExecState * exec,JSC::JSValue v)109 inline JSValueRef toRef(JSC::ExecState* exec, JSC::JSValue v)
110 {
111 #if USE(JSVALUE32_64)
112 if (!v)
113 return 0;
114 if (!v.isCell())
115 return reinterpret_cast<JSValueRef>(asCell(JSC::jsAPIValueWrapper(exec, v)));
116 return reinterpret_cast<JSValueRef>(asCell(v));
117 #else
118 UNUSED_PARAM(exec);
119 return reinterpret_cast<JSValueRef>(JSC::JSValue::encode(v));
120 #endif
121 }
122
toRef(JSC::JSObject * o)123 inline JSObjectRef toRef(JSC::JSObject* o)
124 {
125 return reinterpret_cast<JSObjectRef>(o);
126 }
127
toRef(const JSC::JSObject * o)128 inline JSObjectRef toRef(const JSC::JSObject* o)
129 {
130 return reinterpret_cast<JSObjectRef>(const_cast<JSC::JSObject*>(o));
131 }
132
toRef(JSC::ExecState * e)133 inline JSContextRef toRef(JSC::ExecState* e)
134 {
135 return reinterpret_cast<JSContextRef>(e);
136 }
137
toGlobalRef(JSC::ExecState * e)138 inline JSGlobalContextRef toGlobalRef(JSC::ExecState* e)
139 {
140 ASSERT(e == e->lexicalGlobalObject()->globalExec());
141 return reinterpret_cast<JSGlobalContextRef>(e);
142 }
143
toRef(JSC::PropertyNameArray * l)144 inline JSPropertyNameAccumulatorRef toRef(JSC::PropertyNameArray* l)
145 {
146 return reinterpret_cast<JSPropertyNameAccumulatorRef>(l);
147 }
148
toRef(JSC::JSGlobalData * g)149 inline JSContextGroupRef toRef(JSC::JSGlobalData* g)
150 {
151 return reinterpret_cast<JSContextGroupRef>(g);
152 }
153
154 #endif // APICast_h
155