ImmutableTypeReference.java revision ddf20219422e40a1e60268d8049093602d7bacf8 
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
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29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31
32package org.jf.dexlib2.immutable.reference;
33
34import com.google.common.collect.ImmutableList;
35import org.jf.dexlib2.base.reference.BaseTypeReference;
36import org.jf.dexlib2.iface.reference.TypeReference;
37import org.jf.util.ImmutableListConverter;
38
39import javax.annotation.Nonnull;
40import javax.annotation.Nullable;
41import java.util.List;
42
43public class ImmutableTypeReference extends BaseTypeReference implements ImmutableReference {
44    @Nonnull public 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.convert(list);
63    }
64
65    private static final ImmutableListConverter<ImmutableTypeReference, TypeReference> CONVERTER =
66            new ImmutableListConverter<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