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test/tools/javac/lambda/8068399/T8068399.java@a513711d6171 (annotated)

test/tools/javac/lambda/8068399/T8068399.java

Thu, 12 Feb 2015 10:16:19 +0530

author

vromero

date

Thu, 12 Feb 2015 10:16:19 +0530

changeset 2730

a513711d6171

permissions

-rw-r--r--

8069545: javac shouldn't check nested stuck lambdas during overload resolution
Summary: Nested lambdas should not be considered while overload resolution is in progress
Reviewed-by: mcimadamore
Contributed-by: vicente.romero@oracle.com, srikanth.adayapalam@oracle.com

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