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      1 /*
      2  * Copyright 2012, Google Inc.
      3  * All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions are
      7  * met:
      8  *
      9  *     * Redistributions of source code must retain the above copyright
     10  * notice, this list of conditions and the following disclaimer.
     11  *     * Redistributions in binary form must reproduce the above
     12  * copyright notice, this list of conditions and the following disclaimer
     13  * in the documentation and/or other materials provided with the
     14  * distribution.
     15  *     * Neither the name of Google Inc. nor the names of its
     16  * contributors may be used to endorse or promote products derived from
     17  * this software without specific prior written permission.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     20  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     21  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     22  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     23  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     24  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     25  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     26  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     27  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     28  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     29  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 package org.jf.dexlib2.immutable.reference;
     33 
     34 import com.google.common.collect.ImmutableList;
     35 import org.jf.dexlib2.base.reference.BaseTypeReference;
     36 import org.jf.dexlib2.iface.reference.TypeReference;
     37 import org.jf.util.ImmutableConverter;
     38 
     39 import javax.annotation.Nonnull;
     40 import javax.annotation.Nullable;
     41 import java.util.List;
     42 
     43 public class ImmutableTypeReference extends BaseTypeReference implements ImmutableReference {
     44     @Nonnull protected final String type;
     45 
     46     public ImmutableTypeReference(String type) {
     47         this.type = type;
     48     }
     49 
     50     @Nonnull
     51     public static ImmutableTypeReference of(@Nonnull TypeReference typeReference) {
     52         if (typeReference instanceof ImmutableTypeReference) {
     53             return (ImmutableTypeReference)typeReference;
     54         }
     55         return new ImmutableTypeReference(typeReference.getType());
     56     }
     57 
     58     @Nonnull @Override public String getType() { return type; }
     59 
     60     @Nonnull
     61     public static ImmutableList<ImmutableTypeReference> immutableListOf(@Nullable List<? extends TypeReference> list) {
     62         return CONVERTER.toList(list);
     63     }
     64 
     65     private static final ImmutableConverter<ImmutableTypeReference, TypeReference> CONVERTER =
     66             new ImmutableConverter<ImmutableTypeReference, TypeReference>() {
     67                 @Override
     68                 protected boolean isImmutable(@Nonnull TypeReference item) {
     69                     return item instanceof ImmutableTypeReference;
     70                 }
     71 
     72                 @Nonnull
     73                 @Override
     74                 protected ImmutableTypeReference makeImmutable(@Nonnull TypeReference item) {
     75                     return ImmutableTypeReference.of(item);
     76                 }
     77             };
     78 }
     79