| // 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.naming.retraceproguard; |
| |
| import static com.android.tools.r8.naming.retraceproguard.StackTrace.isSameExceptForFileName; |
| import static com.android.tools.r8.naming.retraceproguard.StackTrace.isSameExceptForFileNameAndLineNumber; |
| import static org.hamcrest.MatcherAssert.assertThat; |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assume.assumeTrue; |
| |
| import com.android.tools.r8.CompilationMode; |
| import com.android.tools.r8.NeverInline; |
| import com.android.tools.r8.R8TestBuilder; |
| import com.android.tools.r8.ToolHelper; |
| import com.android.tools.r8.naming.retraceproguard.StackTrace.StackTraceLine; |
| import com.android.tools.r8.utils.BooleanUtils; |
| import com.google.common.collect.ImmutableList; |
| import java.util.Collection; |
| import java.util.HashSet; |
| import java.util.Set; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.Parameterized; |
| import org.junit.runners.Parameterized.Parameters; |
| |
| @RunWith(Parameterized.class) |
| public class VerticalClassMergingRetraceTest extends RetraceTestBase { |
| private Set<StackTraceLine> haveSeenLines = new HashSet<>(); |
| |
| @Parameters(name = "Backend: {0}, mode: {1}, compat: {2}") |
| public static Collection<Object[]> data() { |
| return buildParameters( |
| ToolHelper.getBackends(), CompilationMode.values(), BooleanUtils.values()); |
| } |
| |
| public VerticalClassMergingRetraceTest(Backend backend, CompilationMode mode, boolean compat) { |
| super(backend, mode, compat); |
| } |
| |
| @Override |
| public void configure(R8TestBuilder builder) { |
| builder.enableInliningAnnotations(); |
| } |
| |
| @Override |
| public Collection<Class<?>> getClasses() { |
| return ImmutableList.of(getMainClass(), ResourceWrapper.class, TintResources.class); |
| } |
| |
| @Override |
| public Class<?> getMainClass() { |
| return MainApp.class; |
| } |
| |
| private int expectedActualStackTraceHeight() { |
| // In RELEASE mode, a synthetic bridge will be added by vertical class merger. |
| return mode == CompilationMode.RELEASE ? 3 : 2; |
| } |
| |
| private boolean filterSynthesizedMethodWhenLineNumberAvailable( |
| StackTraceLine retracedStackTraceLine) { |
| return retracedStackTraceLine.lineNumber > 0; |
| } |
| |
| private boolean filterSynthesizedMethod(StackTraceLine retracedStackTraceLine) { |
| return haveSeenLines.add(retracedStackTraceLine) |
| && (retracedStackTraceLine.className.contains("ResourceWrapper") |
| || retracedStackTraceLine.className.contains("MainApp")); |
| } |
| |
| @Test |
| public void testSourceFileAndLineNumberTable() throws Exception { |
| runTest( |
| ImmutableList.of("-keepattributes SourceFile,LineNumberTable"), |
| (StackTrace actualStackTrace, StackTrace retracedStackTrace) -> { |
| // Even when SourceFile is present retrace replaces the file name in the stack trace. |
| StackTrace reprocessedStackTrace = |
| mode == CompilationMode.DEBUG |
| ? retracedStackTrace |
| : retracedStackTrace.filter(this::filterSynthesizedMethodWhenLineNumberAvailable); |
| assertThat(reprocessedStackTrace, isSameExceptForFileName(expectedStackTrace)); |
| assertEquals(expectedActualStackTraceHeight(), actualStackTrace.size()); |
| }); |
| } |
| |
| @Test |
| public void testLineNumberTableOnly() throws Exception { |
| assumeTrue(compat); |
| assumeTrue(backend == Backend.DEX); |
| runTest( |
| ImmutableList.of("-keepattributes LineNumberTable"), |
| (StackTrace actualStackTrace, StackTrace retracedStackTrace) -> { |
| StackTrace reprocessedStackTrace = |
| mode == CompilationMode.DEBUG |
| ? retracedStackTrace |
| : retracedStackTrace.filter(this::filterSynthesizedMethodWhenLineNumberAvailable); |
| assertThat(reprocessedStackTrace, isSameExceptForFileName(expectedStackTrace)); |
| assertEquals(expectedActualStackTraceHeight(), actualStackTrace.size()); |
| }); |
| } |
| |
| @Test |
| public void testNoLineNumberTable() throws Exception { |
| assumeTrue(compat); |
| assumeTrue(backend == Backend.DEX); |
| haveSeenLines.clear(); |
| runTest( |
| ImmutableList.of(), |
| (StackTrace actualStackTrace, StackTrace retracedStackTrace) -> { |
| StackTrace reprocessedStackTrace = |
| mode == CompilationMode.DEBUG |
| ? retracedStackTrace |
| : retracedStackTrace.filter(this::filterSynthesizedMethod); |
| assertThat( |
| reprocessedStackTrace, isSameExceptForFileNameAndLineNumber(expectedStackTrace)); |
| assertEquals(expectedActualStackTraceHeight(), actualStackTrace.size()); |
| }); |
| } |
| } |
| |
| class ResourceWrapper { |
| // Will be merged down, and represented as: |
| // java.lang.String ...ResourceWrapper.foo() -> a |
| @NeverInline |
| String foo() { |
| throw null; |
| } |
| } |
| |
| class TintResources extends ResourceWrapper {} |
| |
| class MainApp { |
| public static void main(String[] args) { |
| TintResources t = new TintResources(); |
| System.out.println(t.foo()); |
| } |
| } |