forked from mozilla/rhino
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathNativeObject.java
More file actions
193 lines (173 loc) · 6.82 KB
/
Copy pathNativeObject.java
File metadata and controls
193 lines (173 loc) · 6.82 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
/* -*- Mode: java; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Rhino code, released
* May 6, 1999.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1997-1999 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
* Norris Boyd
* Mike McCabe
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License (the "GPL"), in which case the
* provisions of the GPL are applicable instead of those above.
* If you wish to allow use of your version of this file only
* under the terms of the GPL and not to allow others to use your
* version of this file under the NPL, indicate your decision by
* deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the NPL or the GPL.
*/
package org.mozilla.javascript;
import java.util.Hashtable;
/**
* This class implements the Object native object.
* See ECMA 15.2.
* @author Norris Boyd
*/
public class NativeObject extends ScriptableObject {
public static void finishInit(Scriptable scope, FunctionObject ctor,
Scriptable proto)
{
Object obj = proto.get("valueOf", proto);
((FunctionObject) obj).setLength((short) 0);
}
public String getClassName() {
return "Object";
}
public static Object jsConstructor(Context cx, Object[] args,
Function ctorObj, boolean inNewExpr)
throws JavaScriptException
{
if (!inNewExpr) {
// FunctionObject.construct will set up parent, proto
return ctorObj.construct(cx, ctorObj.getParentScope(), args);
}
if (args.length == 0 || args[0] == null ||
args[0] == Undefined.instance)
{
return new NativeObject();
}
return ScriptRuntime.toObject(ctorObj.getParentScope(), args[0]);
}
public String toString() {
Context cx = Context.getContext();
if (cx != null)
return jsFunction_toString(cx, this, null, null);
else
return "[object " + getClassName() + "]";
}
public static String jsFunction_toString(Context cx, Scriptable thisObj,
Object[] args, Function funObj)
{
if (cx.getLanguageVersion() != cx.VERSION_1_2)
return "[object " + thisObj.getClassName() + "]";
return toSource(cx, thisObj, args, funObj);
}
public static String toSource(Context cx, Scriptable thisObj,
Object[] args, Function funObj)
{
Scriptable m = thisObj;
if (cx.iterating == null)
cx.iterating = new Hashtable(31);
if (cx.iterating.get(m) == Boolean.TRUE) {
return "{}"; // stop recursion
} else {
StringBuffer result = new StringBuffer("{");
Object[] ids = m.getIds();
for(int i=0; i < ids.length; i++) {
if (i > 0)
result.append(", ");
Object id = ids[i];
String idString = ScriptRuntime.toString(id);
Object p = (id instanceof String)
? m.get((String) id, m)
: m.get(((Number) id).intValue(), m);
if (p instanceof String) {
result.append(idString + ":\""
+ ScriptRuntime
.escapeString(ScriptRuntime.toString(p))
+ "\"");
} else {
/* wrap changes to cx.iterating in a try/finally
* so that the reference always gets removed, and
* we don't leak memory. Good place for weak
* references, if we had them.
*/
try {
cx.iterating.put(m, Boolean.TRUE); // stop recursion.
result.append(idString + ":" + ScriptRuntime.toString(p));
} finally {
cx.iterating.remove(m);
}
}
}
result.append("}");
return result.toString();
}
}
public static Object jsFunction_valueOf(Context cx, Scriptable thisObj,
Object[] args, Function funObj)
{
return thisObj;
}
public static Object jsFunction_hasOwnProperty(Context cx,
Scriptable thisObj,
Object[] args,
Function funObj)
{
if (args.length != 0)
if (thisObj.has(ScriptRuntime.toString(args[0]), thisObj))
return Boolean.TRUE;
return Boolean.FALSE;
}
public static Object jsFunction_propertyIsEnumerable(Context cx,
Scriptable thisObj,
Object[] args,
Function funObj)
{
try {
if (args.length != 0) {
String name = ScriptRuntime.toString(args[0]);
if (thisObj.has(name, thisObj)) {
int a = ((ScriptableObject)thisObj).getAttributes(name, thisObj);
if ((a & ScriptableObject.DONTENUM) == 0)
return Boolean.TRUE;
}
}
}
catch (PropertyException x) {
}
catch (ClassCastException x) {
}
return Boolean.FALSE;
}
public static Object jsFunction_isPrototypeOf(Context cx, Scriptable thisObj,
Object[] args, Function funObj)
{
if (args.length != 0 && args[0] instanceof Scriptable) {
Scriptable v = (Scriptable) args[0];
do {
v = v.getPrototype();
if (v == thisObj)
return Boolean.TRUE;
} while (v != null);
}
return Boolean.FALSE;
}
}