1 /*
2 * Copyright 2014 - 2020 Rafael Winterhalter
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 package net.bytebuddy.matcher;
17
18 import net.bytebuddy.build.HashCodeAndEqualsPlugin;
19 import net.bytebuddy.description.type.TypeDefinition;
20 import net.bytebuddy.description.type.TypeDescription;
21
22 /**
23 * An element matcher that matches its argument's {@link TypeDescription.Generic} raw type against the
24 * given matcher for a {@link TypeDescription}. As a wildcard does not define an erasure, a runtime
25 * exception is thrown when this matcher is applied to a wildcard.
26 *
27 * @param <T> The type of the matched entity.
28 */
29 @HashCodeAndEqualsPlugin.Enhance
30 public class ErasureMatcher<T extends TypeDefinition> extends ElementMatcher.Junction.AbstractBase<T> {
31
32 /**
33 * The matcher to apply to the raw type of the matched element.
34 */
35 private final ElementMatcher<? super TypeDescription> matcher;
36
37 /**
38 * Creates a new raw type matcher.
39 *
40 * @param matcher The matcher to apply to the raw type.
41 */
42 public ErasureMatcher(ElementMatcher<? super TypeDescription> matcher) {
43 this.matcher = matcher;
44 }
45
46 /**
47 * {@inheritDoc}
48 */
49 public boolean matches(T target) {
50 return matcher.matches(target.asErasure());
51 }
52
53 @Override
54 public String toString() {
55 return "erasure(" + matcher + ")";
56 }
57 }
58