content: /*
   * Copyright (C) 2008 The Android Open Source Project
   *
   * Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package com.taobao.android.dx.rop.cst;
  
  import com.taobao.android.dx.rop.type.Type;
  
  /**
   * Constant type to represent a reference to a particular constant
   * value of an enumerated type.
   */
  public final class CstEnumRef extends CstMemberRef {
      /** {@code null-ok;} the corresponding field ref, lazily initialized */
      private CstFieldRef fieldRef;
  
      /**
       * Constructs an instance.
       *
       * @param nat {@code non-null;} the name-and-type; the defining class is derived
       * from this
       */
      public CstEnumRef(CstNat nat) {
          super(new CstType(nat.getFieldType()), nat);
  
          fieldRef = null;
      }
  
      /** {@inheritDoc} */
      @Override
      public String typeName() {
          return "enum";
      }
  
      /**
       * {@inheritDoc}
       *
       * <b>Note:</b> This returns the enumerated type.
       */
      public Type getType() {
          return getDefiningClass().getClassType();
      }
  
      /**
       * Get a {@link CstFieldRef} that corresponds with this instance.
       *
       * @return {@code non-null;} the corresponding field reference
       */
      public CstFieldRef getFieldRef() {
          if (fieldRef == null) {
              fieldRef = new CstFieldRef(getDefiningClass(), getNat());
          }
  
          return fieldRef;
      }
  }
  