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      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.
    114     private DexCache() {}
    115 }
    116 
    117