author | Jaroslav Tulach <jaroslav.tulach@apidesign.org> |
Fri, 11 Sep 2015 14:51:09 +0200 | |
branch | flow |
changeset 1842 | dd4dabfead82 |
parent 1692 | 2f800fdc371e |
permissions | -rw-r--r-- |
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/** |
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* Back 2 Browser Bytecode Translator |
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* Copyright (C) 2012-2015 Jaroslav Tulach <jaroslav.tulach@apidesign.org> |
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* |
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* This program is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation, version 2 of the License. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program. Look for COPYING file in the top folder. |
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* If not, see http://opensource.org/licenses/GPL-2.0. |
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*/ |
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package org.apidesign.bck2brwsr.vm8; |
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|
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import java.util.ArrayList; |
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import java.util.Arrays; |
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import java.util.List; |
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import java.util.concurrent.Callable; |
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import org.apidesign.bck2brwsr.vmtest.Compare; |
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import org.apidesign.bck2brwsr.vmtest.VMTest; |
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import org.testng.annotations.Factory; |
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|
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/** |
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* |
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* @author Jaroslav Tulach <jtulach@netbeans.org> |
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*/ |
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public class LambdasTest extends LambdasSuper { |
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@Compare public String StringverifyJSTime() throws Exception { |
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return Lambdas.compound(); |
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} |
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|
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@Compare |
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public int canCallLambda() { |
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int[] arr = {0}; |
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Runnable incr = () -> { |
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arr[0]++; |
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}; |
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incr.run(); |
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return arr[0]; |
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} |
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|
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@Compare |
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public String lambdaReturnsString() throws Exception { |
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Callable<String> lambda = () -> "Hello World!"; |
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return lambda.call(); |
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} |
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|
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private interface Convertor<P, R> { |
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|
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public R convert(P value); |
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} |
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|
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@Compare |
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public int convertToLength() { |
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Convertor<String, Integer> lambda = (String s) -> s.getBytes().length; |
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return lambda.convert("buu"); |
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} |
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|
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private int meaningOfWorld = 0; |
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|
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@Compare |
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public int accessToInstanceVar() { |
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Runnable lambda = () -> { |
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meaningOfWorld = 42; |
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}; |
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lambda.run(); |
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return meaningOfWorld; |
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} |
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|
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@Compare |
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public int localMeaningOfWorld() { |
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int[] meansOfWorld = new int[1]; |
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Runnable lambda = () -> { |
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meansOfWorld[0] = 42; |
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}; |
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lambda.run(); |
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return meansOfWorld[0]; |
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} |
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|
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@Compare |
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public int useLocalVars() throws Exception { |
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boolean bool = true; |
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byte b = 2; |
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short s = 3; |
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int i = 4; |
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long l = 5; |
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float f = 6; |
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double d = 7; |
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char c = 8; |
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Callable<Integer> lambda = () -> (int) ((bool ? 1 : 0) + b + s + i + l + f + d + c); |
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return lambda.call(); |
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} |
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|
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@Compare |
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public String callVirtualMethod() throws Exception { |
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String foo = "foo"; |
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Callable<String> ref = foo::toUpperCase; |
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return ref.call(); |
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} |
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|
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@Compare |
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public int callInterfaceMethod() throws Exception { |
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List<String> foos = Arrays.asList("foo"); |
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Callable<Integer> ref = foos::size; |
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return ref.call(); |
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} |
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|
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@Compare |
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public long callStaticMethod() throws Exception { |
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long expected = System.currentTimeMillis(); |
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Callable<Long> ref = System::currentTimeMillis; |
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return ref.call() & ~0xffff; |
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} |
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|
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@Compare |
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public String callConstructor() throws Exception { |
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Callable<List<String>> ref = ArrayList<String>::new; |
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return ref.call().toString(); |
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} |
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|
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@Compare |
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public String superMethodOverridenByThis() throws Exception { |
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Callable<String> ref = super::inheritedMethod; |
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return ref.call(); |
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} |
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|
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@Override |
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String inheritedMethod() { |
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return "overridden version"; |
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} |
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|
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@Compare |
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public String referencePrivateClassMethod() throws Exception { |
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StringBuilder sb = new StringBuilder(); |
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|
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Callable<String> ref1 = LambdasTest::privateClassMethod; |
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sb.append(ref1.call()); |
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|
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Callable<String> ref2 = this::privateInstanceMethod; |
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sb.append("\n").append(ref2.call()); |
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|
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// Normal method calls should still work after our magic |
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// of making them them accessible from the lambda classes. |
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sb.append("\n").append(privateClassMethod()); |
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sb.append("\n").append(privateInstanceMethod()); |
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|
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return sb.toString(); |
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} |
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|
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private String privateInstanceMethod() { |
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return "foo"; |
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} |
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|
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private static String privateClassMethod() { |
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return "foo"; |
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} |
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|
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private String unrelatedPrivateMethod() { |
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return "foo"; |
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} |
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|
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@Factory public static Object[] create() { |
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return VMTest.create(LambdasTest.class); |
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} |
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} |
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