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      1 /*
      2  * Copyright (C) 2007 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.android.dx.cf.attrib;
     18 
     19 import com.android.dx.rop.cst.CstNat;
     20 import com.android.dx.rop.cst.CstType;
     21 
     22 /**
     23  * Attribute class for standards-track {@code EnclosingMethod}
     24  * attributes.
     25  */
     26 public final class AttEnclosingMethod extends BaseAttribute {
     27     /** {@code non-null;} attribute name for attributes of this type */
     28     public static final String ATTRIBUTE_NAME = "EnclosingMethod";
     29 
     30     /** {@code non-null;} the innermost enclosing class */
     31     private final CstType type;
     32 
     33     /** {@code null-ok;} the name-and-type of the innermost enclosing method, if any */
     34     private final CstNat method;
     35 
     36     /**
     37      * Constructs an instance.
     38      *
     39      * @param type {@code non-null;} the innermost enclosing class
     40      * @param method {@code null-ok;} the name-and-type of the innermost enclosing
     41      * method, if any
     42      */
     43     public AttEnclosingMethod(CstType type, CstNat method) {
     44         super(ATTRIBUTE_NAME);
     45 
     46         if (type == null) {
     47             throw new NullPointerException("type == null");
     48         }
     49 
     50         this.type = type;
     51         this.method = method;
     52     }
     53 
     54     /** {@inheritDoc} */
     55     @Override
     56     public int byteLength() {
     57         return 10;
     58     }
     59 
     60     /**
     61      * Gets the innermost enclosing class.
     62      *
     63      * @return {@code non-null;} the innermost enclosing class
     64      */
     65     public CstType getEnclosingClass() {
     66         return type;
     67     }
     68 
     69     /**
     70      * Gets the name-and-type of the innermost enclosing method, if
     71      * any.
     72      *
     73      * @return {@code null-ok;} the name-and-type of the innermost enclosing
     74      * method, if any
     75      */
     76     public CstNat getMethod() {
     77         return method;
     78     }
     79 }
     80