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 | |
52 | inline JSC::ExecState* toJS(JSContextRef c) |
53 | { |
54 | ASSERT(c); |
55 | return reinterpret_cast<JSC::ExecState*>(const_cast<OpaqueJSContext*>(c)); |
56 | } |
57 | |
58 | inline JSC::ExecState* toJS(JSGlobalContextRef c) |
59 | { |
60 | ASSERT(c); |
61 | return reinterpret_cast<JSC::ExecState*>(c); |
62 | } |
63 | |
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(ptr: reinterpret_cast<JSC::EncodedJSValue>(const_cast<OpaqueJSValue*>(v))); |
77 | #endif |
78 | } |
79 | |
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(ptr: reinterpret_cast<JSC::EncodedJSValue>(const_cast<OpaqueJSValue*>(v))); |
91 | #endif |
92 | } |
93 | |
94 | inline JSC::JSObject* toJS(JSObjectRef o) |
95 | { |
96 | return reinterpret_cast<JSC::JSObject*>(o); |
97 | } |
98 | |
99 | inline JSC::PropertyNameArray* toJS(JSPropertyNameAccumulatorRef a) |
100 | { |
101 | return reinterpret_cast<JSC::PropertyNameArray*>(a); |
102 | } |
103 | |
104 | inline JSC::JSGlobalData* toJS(JSContextGroupRef g) |
105 | { |
106 | return reinterpret_cast<JSC::JSGlobalData*>(const_cast<OpaqueJSContextGroup*>(g)); |
107 | } |
108 | |
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(value: v)); |
120 | #endif |
121 | } |
122 | |
123 | inline JSObjectRef toRef(JSC::JSObject* o) |
124 | { |
125 | return reinterpret_cast<JSObjectRef>(o); |
126 | } |
127 | |
128 | inline JSObjectRef toRef(const JSC::JSObject* o) |
129 | { |
130 | return reinterpret_cast<JSObjectRef>(const_cast<JSC::JSObject*>(o)); |
131 | } |
132 | |
133 | inline JSContextRef toRef(JSC::ExecState* e) |
134 | { |
135 | return reinterpret_cast<JSContextRef>(e); |
136 | } |
137 | |
138 | inline JSGlobalContextRef toGlobalRef(JSC::ExecState* e) |
139 | { |
140 | ASSERT(e == e->lexicalGlobalObject()->globalExec()); |
141 | return reinterpret_cast<JSGlobalContextRef>(e); |
142 | } |
143 | |
144 | inline JSPropertyNameAccumulatorRef toRef(JSC::PropertyNameArray* l) |
145 | { |
146 | return reinterpret_cast<JSPropertyNameAccumulatorRef>(l); |
147 | } |
148 | |
149 | inline JSContextGroupRef toRef(JSC::JSGlobalData* g) |
150 | { |
151 | return reinterpret_cast<JSContextGroupRef>(g); |
152 | } |
153 | |
154 | #endif // APICast_h |
155 | |