Mercurial > jdk8-mips64-public > langtools / file comparison
comparison: test/tools/javac/lambda/8068399/T8068399.java
test/tools/javac/lambda/8068399/T8068399.java
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- a513711d6171
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| 2724:e5b93c508212 | 2730:a513711d6171 |
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| 1 /* | |
| 2 * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved. | |
| 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. Oracle designates this | |
| 8 * particular file as subject to the "Classpath" exception as provided | |
| 9 * by Oracle in the LICENSE file that accompanied this code. | |
| 10 * | |
| 11 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 14 * version 2 for more details (a copy is included in the LICENSE file that | |
| 15 * accompanied this code). | |
| 16 * | |
| 17 * You should have received a copy of the GNU General Public License version | |
| 18 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 20 * | |
| 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 22 * or visit www.oracle.com if you need additional information or have any | |
| 23 * questions. | |
| 24 */ | |
| 25 /* | |
| 26 * @test | |
| 27 * @bug 8068399 | |
| 28 * @summary structural most specific and stuckness | |
| 29 */ | |
| 30 | |
| 31 import java.util.function.Function; | |
| 32 import java.util.stream.IntStream; | |
| 33 import java.util.stream.Stream; | |
| 34 | |
| 35 public class T8068399 { | |
| 36 | |
| 37 public static class Spectrum { | |
| 38 public double[] getEnergy() { | |
| 39 return new double[0]; | |
| 40 } | |
| 41 } | |
| 42 | |
| 43 protected Spectrum spectrum; | |
| 44 | |
| 45 public static class Ref<T> { | |
| 46 | |
| 47 T value; | |
| 48 | |
| 49 public Ref() { | |
| 50 } | |
| 51 | |
| 52 public Ref(T value) { | |
| 53 this.value = value; | |
| 54 } | |
| 55 | |
| 56 public boolean isNull() { | |
| 57 return value == null; | |
| 58 } | |
| 59 | |
| 60 public T get() { | |
| 61 return value; | |
| 62 } | |
| 63 | |
| 64 public void set(T value) { | |
| 65 this.value = value; | |
| 66 } | |
| 67 } | |
| 68 | |
| 69 public static <T>T maxKey(Stream<T> stream, Function<T, Double> function) { | |
| 70 Ref<Double> max = new Ref<>(); | |
| 71 Ref<T> index = new Ref<>(); | |
| 72 stream.forEach(v -> { | |
| 73 Double value = function.apply(v); | |
| 74 | |
| 75 if (max.isNull() || value > max.get()) { | |
| 76 max.set(value); | |
| 77 index.set(v); | |
| 78 } | |
| 79 }); | |
| 80 | |
| 81 return index.get(); | |
| 82 } | |
| 83 | |
| 84 public static int interpolate(int x, int x0, int x1, int y0, int y1) { | |
| 85 return y0 + (x - x0) * (y1 - y0) / (x1 - x0); | |
| 86 } | |
| 87 | |
| 88 public static double interpolate(double x, double x0, double x1, double y0, double y1) { | |
| 89 return y0 + (x - x0) * (y1 - y0) / (x1 - x0); | |
| 90 } | |
| 91 | |
| 92 protected int getXByFrequency(double frequency) { | |
| 93 return (int) Math.round(interpolate(frequency, | |
| 94 getMinSpectrumCoord(), | |
| 95 getMaxSpectrumCoord(), | |
| 96 0, getWidth())); | |
| 97 } | |
| 98 | |
| 99 private int getWidth() { | |
| 100 return 0; | |
| 101 } | |
| 102 | |
| 103 private double getMaxSpectrumCoord() { | |
| 104 return 0; | |
| 105 } | |
| 106 | |
| 107 private double getMinSpectrumCoord() { | |
| 108 return 0; | |
| 109 } | |
| 110 | |
| 111 void foo() { | |
| 112 int maxBpmIndex = 0; | |
| 113 int xcur = getXByFrequency(maxKey(IntStream.range(0, maxBpmIndex).boxed(), | |
| 114 i -> Math.abs(spectrum.getEnergy()[i]))); | |
| 115 } | |
| 116 | |
| 117 public static void main(String [] args) { | |
| 118 } | |
| 119 } |
