1 /*
2  * Licensed to the Apache Software Foundation (ASF) under one or more
3  * contributor license agreements.  See the NOTICE file distributed with
4  * this work for additional information regarding copyright ownership.
5  * The ASF licenses this file to You under the Apache License, Version 2.0
6  * (the "License"); you may not use this file except in compliance with
7  * the License.  You may obtain a copy of the License at
8  *
9  *     http://www.apache.org/licenses/LICENSE-2.0
10  *
11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS,
13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  */
17 /*
18  * Copyright (C) 2012 The Android Open Source Project
19  *
20  * Licensed under the Apache License, Version 2.0 (the "License");
21  * you may not use this file except in compliance with the License.
22  * You may obtain a copy of the License at
23  *
24  *      http://www.apache.org/licenses/LICENSE-2.0
25  *
26  * Unless required by applicable law or agreed to in writing, software
27  * distributed under the License is distributed on an "AS IS" BASIS,
28  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
29  * See the License for the specific language governing permissions and
30  * limitations under the License.
31  */
32 
33 package java.lang;
34 
35 import dalvik.annotation.optimization.FastNative;
36 
37 /**
38  * A dex cache holds resolved copies of strings, fields, methods, and classes from the dexfile.
39  */
40 final class DexCache {
41     /** The location of the associated dex file. */
42     private String location;
43 
44     /** Holds C pointer to dexFile. */
45     private long dexFile;
46 
47     /**
48      * References to CallSite (C array pointer) as they become resolved following
49      * interpreter semantics.
50      */
51     private long resolvedCallSites;
52 
53     /**
54      * References to fields (C array pointer) as they become resolved following
55      * interpreter semantics. May refer to fields defined in other dex files.
56      */
57     private long resolvedFields;
58 
59     /**
60      * References to MethodType (C array pointer) as they become resolved following
61      * interpreter semantics.
62      */
63     private long resolvedMethodTypes;
64 
65     /**
66      * References to methods (C array pointer) as they become resolved following
67      * interpreter semantics. May refer to methods defined in other dex files.
68      */
69     private long resolvedMethods;
70 
71     /**
72      * References to types (C array pointer) as they become resolved following
73      * interpreter semantics. May refer to types defined in other dex files.
74      */
75     private long resolvedTypes;
76 
77     /**
78      * References to strings (C array pointer) as they become resolved following
79      * interpreter semantics. All strings are interned.
80      */
81     private long strings;
82 
83     /**
84      * The number of elements in the native call sites array.
85      */
86     private int numResolvedCallSites;
87 
88     /**
89      * The number of elements in the native resolvedFields array.
90      */
91     private int numResolvedFields;
92 
93     /**
94      * The number of elements in the native method types array.
95      */
96     private int numResolvedMethodTypes;
97 
98     /**
99      * The number of elements in the native resolvedMethods array.
100      */
101     private int numResolvedMethods;
102 
103     /**
104      * The number of elements in the native resolvedTypes array.
105      */
106     private int numResolvedTypes;
107 
108     /**
109      * The number of elements in the native strings array.
110      */
111     private int numStrings;
112 
113     // Only created by the VM.
DexCache()114     private DexCache() {}
115 }
116 
117