| // Copyright (c) 2018, 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.ir.optimize.checkcast; |
| |
| import static com.android.tools.r8.utils.codeinspector.Matchers.isPresent; |
| import static org.hamcrest.MatcherAssert.assertThat; |
| import static org.junit.Assert.assertEquals; |
| |
| import com.android.tools.r8.TestParameters; |
| import com.android.tools.r8.TestParametersCollection; |
| import com.android.tools.r8.debug.CfDebugTestConfig; |
| import com.android.tools.r8.debug.DebugTestBase; |
| import com.android.tools.r8.debug.DebugTestConfig; |
| import com.android.tools.r8.debug.DexDebugTestConfig; |
| import com.android.tools.r8.utils.codeinspector.ClassSubject; |
| import com.android.tools.r8.utils.codeinspector.CodeInspector; |
| 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.Streams; |
| import java.nio.file.Path; |
| import org.junit.Before; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.Parameterized; |
| |
| @RunWith(Parameterized.class) |
| public class CheckCastDebugTestRunner extends DebugTestBase { |
| |
| private static final Class<?> MAIN = CheckCastDebugTest.class; |
| |
| private final TestParameters parameters; |
| |
| private Path r8Out; |
| private CodeInspector inspector; |
| |
| @Parameterized.Parameters(name = "{0}") |
| public static TestParametersCollection data() { |
| return getTestParameters().withAllRuntimes().build(); |
| } |
| |
| public CheckCastDebugTestRunner(TestParameters parameters) { |
| this.parameters = parameters; |
| } |
| |
| @Before |
| public void setUp() throws Exception { |
| inspector = |
| testForR8(parameters.getBackend()) |
| .addProgramClassesAndInnerClasses(A.class, B.class, C.class, MAIN) |
| .addKeepMainRule(MAIN) |
| .addOptionsModification(options -> options.enableVerticalClassMerging = false) |
| .debug() |
| .enableInliningAnnotations() |
| .noMinification() |
| .setMinApi(parameters.getRuntime()) |
| .compile() |
| .writeToZip(this::setR8Out) |
| .run(parameters.getRuntime(), MAIN) |
| .assertSuccess() |
| .inspector(); |
| |
| ClassSubject classSubject = inspector.clazz(MAIN); |
| assertThat(classSubject, isPresent()); |
| } |
| |
| private void setR8Out(Path path) { |
| this.r8Out = path; |
| } |
| |
| @Test |
| public void test_differentLocals() throws Throwable { |
| ClassSubject classSubject = inspector.clazz(MAIN); |
| MethodSubject method = classSubject.method("void", "differentLocals", ImmutableList.of()); |
| assertThat(method, isPresent()); |
| long count = |
| Streams.stream(method.iterateInstructions(InstructionSubject::isCheckCast)).count(); |
| assertEquals(0, count); |
| |
| DebugTestConfig config = |
| parameters.isCfRuntime() ? new CfDebugTestConfig() : new DexDebugTestConfig(); |
| config.addPaths(r8Out); |
| runDebugTest(config, MAIN.getCanonicalName(), |
| // Object obj = new C(); |
| breakpoint(MAIN.getCanonicalName(), "differentLocals", "()V", 35), |
| run(), |
| checkNoLocal("obj"), |
| checkNoLocal("a"), |
| checkNoLocal("b"), |
| checkNoLocal("c"), |
| // A a = (A) obj; |
| breakpoint(MAIN.getCanonicalName(), "differentLocals", "()V", 36), |
| run(), |
| checkLocal("obj"), |
| checkNoLocal("a"), |
| checkNoLocal("b"), |
| checkNoLocal("c"), |
| // B b = (B) a; |
| breakpoint(MAIN.getCanonicalName(), "differentLocals", "()V", 37), |
| run(), |
| checkLocal("obj"), |
| checkLocal("a"), |
| checkNoLocal("b"), |
| checkNoLocal("c"), |
| // C c = (C) b; |
| breakpoint(MAIN.getCanonicalName(), "differentLocals", "()V", 38), |
| run(), |
| checkLocal("obj"), |
| checkLocal("a"), |
| checkLocal("b"), |
| checkNoLocal("c"), |
| // System.out.println(c.toString()); |
| breakpoint(MAIN.getCanonicalName(), "differentLocals", "()V", 39), |
| run(), |
| checkLocal("obj"), |
| checkLocal("a"), |
| checkLocal("b"), |
| checkLocal("c"), |
| run() |
| ); |
| } |
| |
| @Test |
| public void test_sameLocal() throws Throwable { |
| ClassSubject classSubject = inspector.clazz(MAIN); |
| MethodSubject method = classSubject.method("void", "sameLocal", ImmutableList.of()); |
| assertThat(method, isPresent()); |
| long count = |
| Streams.stream(method.iterateInstructions(InstructionSubject::isCheckCast)).count(); |
| assertEquals(0, count); |
| |
| DebugTestConfig config = |
| parameters.isCfRuntime() ? new CfDebugTestConfig() : new DexDebugTestConfig(); |
| config.addPaths(r8Out); |
| runDebugTest(config, MAIN.getCanonicalName(), |
| // Object obj = new C(); |
| breakpoint(MAIN.getCanonicalName(), "sameLocal", "()V", 44), |
| run(), |
| checkNoLocal("obj"), |
| // obj = (A) obj; |
| breakpoint(MAIN.getCanonicalName(), "sameLocal", "()V", 45), |
| run(), |
| checkLocal("obj"), |
| // obj = (B) obj; |
| breakpoint(MAIN.getCanonicalName(), "sameLocal", "()V", 46), |
| run(), |
| checkLocal("obj"), |
| // obj = (C) obj; |
| breakpoint(MAIN.getCanonicalName(), "sameLocal", "()V", 47), |
| run(), |
| checkLocal("obj"), |
| // System.out.println(obj.toString()); |
| breakpoint(MAIN.getCanonicalName(), "sameLocal", "()V", 48), |
| run(), |
| checkLocal("obj"), |
| run() |
| ); |
| } |
| |
| } |