|  | // Copyright (c) 2017, the R8 project authors. Please see the AUTHORS file | 
|  | // for details. All rights reserved. Use of this source code is governed by a | 
|  | // BSD-style license that can be found in the LICENSE file. | 
|  |  | 
|  | package com.android.tools.r8; | 
|  |  | 
|  | import static org.junit.Assert.assertEquals; | 
|  |  | 
|  | import com.android.tools.r8.ToolHelper.DexVm; | 
|  | import com.android.tools.r8.ToolHelper.DexVm.Version; | 
|  | import com.android.tools.r8.VmTestRunner.IgnoreIfVmOlderThan; | 
|  | import com.android.tools.r8.origin.Origin; | 
|  | import com.android.tools.r8.utils.AndroidApiLevel; | 
|  | import com.android.tools.r8.utils.OffOrAuto; | 
|  | import com.android.tools.r8.utils.codeinspector.ClassSubject; | 
|  | import com.android.tools.r8.utils.codeinspector.CodeInspector; | 
|  | import com.android.tools.r8.utils.codeinspector.FoundClassSubject; | 
|  | import com.android.tools.r8.utils.codeinspector.InstructionSubject; | 
|  | import com.android.tools.r8.utils.codeinspector.MethodSubject; | 
|  | import com.google.common.collect.ImmutableList; | 
|  | import com.google.common.collect.ImmutableMap; | 
|  | import com.google.common.collect.Lists; | 
|  | import java.nio.file.Path; | 
|  | import java.nio.file.Paths; | 
|  | import java.util.ArrayList; | 
|  | import java.util.List; | 
|  | import java.util.Map; | 
|  | import java.util.function.UnaryOperator; | 
|  | import org.junit.Test; | 
|  | import org.junit.runner.RunWith; | 
|  |  | 
|  | @RunWith(VmTestRunner.class) | 
|  | public class R8RunExamplesAndroidOTest extends RunExamplesAndroidOTest<R8Command.Builder> { | 
|  | private static final ArrayList<String> PROGUARD_OPTIONS = Lists.newArrayList( | 
|  | "-keepclasseswithmembers public class * {", | 
|  | "    public static void main(java.lang.String[]);", | 
|  | "}", | 
|  | "-dontobfuscate", | 
|  | "-allowaccessmodification" | 
|  | ); | 
|  |  | 
|  | private static final ArrayList<String> PROGUARD_OPTIONS_N_PLUS = | 
|  | Lists.newArrayList( | 
|  | "-keepclasseswithmembers public class * {", | 
|  | "    public static void main(java.lang.String[]);", | 
|  | "}", | 
|  | "-keepclasseswithmembers interface **$AnnotatedInterface { <methods>; }", | 
|  | "-neverinline interface **$AnnotatedInterface { static void annotatedStaticMethod(); }", | 
|  | "-keepattributes *Annotation*", | 
|  | "-dontobfuscate", | 
|  | "-allowaccessmodification"); | 
|  |  | 
|  | private static Map<DexVm.Version, List<String>> alsoFailsOn = | 
|  | ImmutableMap.<DexVm.Version, List<String>>builder() | 
|  | .put( | 
|  | Version.V4_0_4, | 
|  | ImmutableList.of("invokecustom-with-shrinking", "invokecustom2-with-shrinking")) | 
|  | .put( | 
|  | Version.V4_4_4, | 
|  | ImmutableList.of("invokecustom-with-shrinking", "invokecustom2-with-shrinking")) | 
|  | .put( | 
|  | Version.V5_1_1, | 
|  | ImmutableList.of("invokecustom-with-shrinking", "invokecustom2-with-shrinking")) | 
|  | .put( | 
|  | Version.V6_0_1, | 
|  | ImmutableList.of("invokecustom-with-shrinking", "invokecustom2-with-shrinking")) | 
|  | .put( | 
|  | Version.V7_0_0, | 
|  | ImmutableList.of("invokecustom-with-shrinking", "invokecustom2-with-shrinking")) | 
|  | .put( | 
|  | Version.V9_0_0, | 
|  | // TODO(120402963) Triage. | 
|  | ImmutableList.of("invokecustom-with-shrinking", "invokecustom2-with-shrinking")) | 
|  | .put(Version.DEFAULT, ImmutableList.of()) | 
|  | .build(); | 
|  |  | 
|  | @Test | 
|  | public void invokeCustomWithShrinking() throws Throwable { | 
|  | test("invokecustom-with-shrinking", "invokecustom", "InvokeCustom") | 
|  | .withMinApiLevel(AndroidApiLevel.O) | 
|  | .withBuilderTransformation(builder -> | 
|  | builder.addProguardConfigurationFiles( | 
|  | Paths.get(ToolHelper.EXAMPLES_ANDROID_O_DIR, "invokecustom/keep-rules.txt"))) | 
|  | .run(); | 
|  | } | 
|  |  | 
|  | @Test | 
|  | public void invokeCustom2WithShrinking() throws Throwable { | 
|  | test("invokecustom2-with-shrinking", "invokecustom2", "InvokeCustom") | 
|  | .withMinApiLevel(AndroidApiLevel.O) | 
|  | .withBuilderTransformation(builder -> | 
|  | builder.addProguardConfigurationFiles( | 
|  | Paths.get(ToolHelper.EXAMPLES_ANDROID_O_DIR, "invokecustom2/keep-rules.txt"))) | 
|  | .run(); | 
|  | } | 
|  |  | 
|  | @Override | 
|  | @Test | 
|  | public void lambdaDesugaring() throws Throwable { | 
|  | test("lambdadesugaring", "lambdadesugaring", "LambdaDesugaring") | 
|  | .withMinApiLevel(ToolHelper.getMinApiLevelForDexVmNoHigherThan(AndroidApiLevel.K)) | 
|  | .withOptionConsumer(opts -> opts.enableClassInlining = false) | 
|  | .withBuilderTransformation( | 
|  | b -> b.addProguardConfiguration(PROGUARD_OPTIONS, Origin.unknown())) | 
|  | .withDexCheck(inspector -> checkLambdaCount(inspector, 137, "lambdadesugaring")) | 
|  | .run(); | 
|  |  | 
|  | test("lambdadesugaring", "lambdadesugaring", "LambdaDesugaring") | 
|  | .withMinApiLevel(ToolHelper.getMinApiLevelForDexVmNoHigherThan(AndroidApiLevel.K)) | 
|  | .withOptionConsumer(opts -> opts.enableClassInlining = true) | 
|  | .withBuilderTransformation( | 
|  | b -> b.addProguardConfiguration(PROGUARD_OPTIONS, Origin.unknown())) | 
|  | .withDexCheck(inspector -> checkLambdaCount(inspector, 7, "lambdadesugaring")) | 
|  | .run(); | 
|  | } | 
|  |  | 
|  | @Test | 
|  | public void testMultipleInterfacesLambdaOutValue() throws Throwable { | 
|  | // We can only remove trivial check casts for the lambda objects if we keep track all the | 
|  | // multiple interfaces we additionally specified for the lambdas | 
|  | test("lambdadesugaring", "lambdadesugaring", "LambdaDesugaring") | 
|  | .withMinApiLevel(ToolHelper.getMinApiLevelForDexVmNoHigherThan(AndroidApiLevel.K)) | 
|  | .withBuilderTransformation( | 
|  | b -> b.addProguardConfiguration(PROGUARD_OPTIONS, Origin.unknown())) | 
|  | .withBuilderTransformation( | 
|  | b -> | 
|  | b.addProguardConfiguration( | 
|  | ImmutableList.of( | 
|  | "-keep class lambdadesugaring.LambdaDesugaring {", | 
|  | "  void testMultipleInterfaces();", | 
|  | "}"), | 
|  | Origin.unknown())) | 
|  | .withDexCheck(inspector -> checkTestMultipleInterfacesCheckCastCount(inspector, 0)) | 
|  | .run(); | 
|  | } | 
|  |  | 
|  | @Test | 
|  | @IgnoreIfVmOlderThan(Version.V7_0_0) | 
|  | public void lambdaDesugaringWithDefaultMethods() throws Throwable { | 
|  | test("lambdadesugaring", "lambdadesugaring", "LambdaDesugaring") | 
|  | .withMinApiLevel(AndroidApiLevel.N) | 
|  | .withOptionConsumer(opts -> opts.enableClassInlining = false) | 
|  | .withBuilderTransformation( | 
|  | b -> b.addProguardConfiguration(PROGUARD_OPTIONS, Origin.unknown())) | 
|  | .withDexCheck(inspector -> checkLambdaCount(inspector, 137, "lambdadesugaring")) | 
|  | .run(); | 
|  |  | 
|  | test("lambdadesugaring", "lambdadesugaring", "LambdaDesugaring") | 
|  | .withMinApiLevel(AndroidApiLevel.N) | 
|  | .withOptionConsumer(opts -> opts.enableClassInlining = true) | 
|  | .withBuilderTransformation( | 
|  | b -> b.addProguardConfiguration(PROGUARD_OPTIONS, Origin.unknown())) | 
|  | .withDexCheck(inspector -> checkLambdaCount(inspector, 7, "lambdadesugaring")) | 
|  | .run(); | 
|  | } | 
|  |  | 
|  | @Override | 
|  | @Test | 
|  | public void lambdaDesugaringNPlus() throws Throwable { | 
|  | test("lambdadesugaringnplus", "lambdadesugaringnplus", "LambdasWithStaticAndDefaultMethods") | 
|  | .withMinApiLevel(ToolHelper.getMinApiLevelForDexVmNoHigherThan(AndroidApiLevel.K)) | 
|  | .withInterfaceMethodDesugaring(OffOrAuto.Auto) | 
|  | .withOptionConsumer(opts -> opts.enableClassInlining = false) | 
|  | .withBuilderTransformation(ToolHelper::allowTestProguardOptions) | 
|  | .withBuilderTransformation( | 
|  | b -> b.addProguardConfiguration(PROGUARD_OPTIONS_N_PLUS, Origin.unknown())) | 
|  | .withDexCheck(inspector -> checkLambdaCount(inspector, 31, "lambdadesugaringnplus")) | 
|  | .run(); | 
|  |  | 
|  | test("lambdadesugaringnplus", "lambdadesugaringnplus", "LambdasWithStaticAndDefaultMethods") | 
|  | .withMinApiLevel(ToolHelper.getMinApiLevelForDexVmNoHigherThan(AndroidApiLevel.K)) | 
|  | .withInterfaceMethodDesugaring(OffOrAuto.Auto) | 
|  | .withOptionConsumer(opts -> opts.enableClassInlining = true) | 
|  | .withBuilderTransformation(ToolHelper::allowTestProguardOptions) | 
|  | .withBuilderTransformation( | 
|  | b -> b.addProguardConfiguration(PROGUARD_OPTIONS_N_PLUS, Origin.unknown())) | 
|  | .withDexCheck(inspector -> checkLambdaCount(inspector, 7, "lambdadesugaringnplus")) | 
|  | .run(); | 
|  | } | 
|  |  | 
|  | @Test | 
|  | @IgnoreIfVmOlderThan(Version.V7_0_0) | 
|  | public void lambdaDesugaringNPlusWithDefaultMethods() throws Throwable { | 
|  | test("lambdadesugaringnplus", "lambdadesugaringnplus", "LambdasWithStaticAndDefaultMethods") | 
|  | .withMinApiLevel(AndroidApiLevel.N) | 
|  | .withInterfaceMethodDesugaring(OffOrAuto.Auto) | 
|  | .withOptionConsumer(opts -> opts.enableClassInlining = false) | 
|  | .withBuilderTransformation(ToolHelper::allowTestProguardOptions) | 
|  | .withBuilderTransformation( | 
|  | b -> b.addProguardConfiguration(PROGUARD_OPTIONS_N_PLUS, Origin.unknown())) | 
|  | .withDexCheck(inspector -> checkLambdaCount(inspector, 31, "lambdadesugaringnplus")) | 
|  | .run(); | 
|  |  | 
|  | test("lambdadesugaringnplus", "lambdadesugaringnplus", "LambdasWithStaticAndDefaultMethods") | 
|  | .withMinApiLevel(AndroidApiLevel.N) | 
|  | .withInterfaceMethodDesugaring(OffOrAuto.Auto) | 
|  | .withOptionConsumer(opts -> opts.enableClassInlining = true) | 
|  | .withBuilderTransformation(ToolHelper::allowTestProguardOptions) | 
|  | .withBuilderTransformation( | 
|  | b -> b.addProguardConfiguration(PROGUARD_OPTIONS_N_PLUS, Origin.unknown())) | 
|  | .withDexCheck(inspector -> checkLambdaCount(inspector, 5, "lambdadesugaringnplus")) | 
|  | .run(); | 
|  | } | 
|  |  | 
|  | private void checkLambdaCount(CodeInspector inspector, int expectedCount, String prefix) { | 
|  | int count = 0; | 
|  | for (FoundClassSubject clazz : inspector.allClasses()) { | 
|  | if (clazz.isSynthesizedJavaLambdaClass() && | 
|  | clazz.getOriginalName().startsWith(prefix)) { | 
|  | count++; | 
|  | } | 
|  | } | 
|  | assertEquals(expectedCount, count); | 
|  | } | 
|  |  | 
|  | private void checkTestMultipleInterfacesCheckCastCount( | 
|  | CodeInspector inspector, int expectedCount) { | 
|  | ClassSubject clazz = inspector.clazz("lambdadesugaring.LambdaDesugaring"); | 
|  | assert clazz.isPresent(); | 
|  | MethodSubject method = clazz.method("void", "testMultipleInterfaces"); | 
|  | assert method.isPresent(); | 
|  | class Count { | 
|  | int i = 0; | 
|  | } | 
|  | final Count count = new Count(); | 
|  | method | 
|  | .iterateInstructions(InstructionSubject::isCheckCast) | 
|  | .forEachRemaining( | 
|  | instruction -> { | 
|  | ++count.i; | 
|  | }); | 
|  | assertEquals(expectedCount, count.i); | 
|  | } | 
|  |  | 
|  | class R8TestRunner extends TestRunner<R8TestRunner> { | 
|  |  | 
|  | R8TestRunner(String testName, String packageName, String mainClass) { | 
|  | super(testName, packageName, mainClass); | 
|  | } | 
|  |  | 
|  | @Override | 
|  | R8TestRunner withMinApiLevel(AndroidApiLevel minApiLevel) { | 
|  | return withBuilderTransformation(builder -> builder.setMinApiLevel(minApiLevel.getLevel())); | 
|  | } | 
|  |  | 
|  | @Override R8TestRunner withKeepAll() { | 
|  | return withBuilderTransformation(builder -> | 
|  | builder | 
|  | .setDisableTreeShaking(true) | 
|  | .setDisableMinification(true) | 
|  | .addProguardConfiguration(ImmutableList.of("-keepattributes *"), Origin.unknown())); | 
|  | } | 
|  |  | 
|  | @Override | 
|  | void build(Path inputFile, Path out, OutputMode mode) throws Throwable { | 
|  | R8Command.Builder builder = R8Command.builder().setOutput(out, mode); | 
|  | for (UnaryOperator<R8Command.Builder> transformation : builderTransformations) { | 
|  | builder = transformation.apply(builder); | 
|  | } | 
|  |  | 
|  | builder.addLibraryFiles(ToolHelper.getAndroidJar( | 
|  | androidJarVersion == null ? builder.getMinApiLevel() : androidJarVersion.getLevel())); | 
|  | R8Command command = builder.addProgramFiles(inputFile).build(); | 
|  | ToolHelper.runR8(command, this::combinedOptionConsumer); | 
|  | } | 
|  |  | 
|  | @Override | 
|  | R8TestRunner self() { | 
|  | return this; | 
|  | } | 
|  | } | 
|  |  | 
|  | @Override | 
|  | R8TestRunner test(String testName, String packageName, String mainClass) { | 
|  | return new R8TestRunner(testName, packageName, mainClass); | 
|  | } | 
|  |  | 
|  | @Override | 
|  | boolean expectedToFail(String name) { | 
|  | return super.expectedToFail(name) || failsOn(alsoFailsOn, name); | 
|  | } | 
|  | } |