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// Copyright 2016 The Bazel Authors. All rights reserved.
//
// 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.google.devtools.build.android.desugar.testdata;
import java.util.ArrayList;
import java.util.List;
import java.util.function.Function;
import java.util.function.Supplier;
import java.util.stream.Collectors;
public class ConstructorReference {
private final List<String> names;
private ConstructorReference(String name) {
names = new ArrayList<>(1);
names.add(name);
}
public ConstructorReference(List<String> names) {
this.names = names;
}
public List<Integer> toInt() {
return names.stream().map(Integer::new).collect(Collectors.toList());
}
public static Function<String, ConstructorReference> singleton() {
return ConstructorReference::new;
}
public static Supplier<ConstructorReference> emptyThroughJavacGeneratedBridge() {
// Because Empty is private in another (inner) class, Javac seems to generate a lambda body
// method in this case that calls the Empty(SentinalType) bridge constructor Javac generates.
return Empty::new;
}
private static class Empty extends ConstructorReference {
private Empty() {
super(new ArrayList<String>(0));
throw new RuntimeException("got it!");
}
}
}
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