| // Copyright (c) 2019, 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.classinliner; |
| |
| import static com.android.tools.r8.utils.codeinspector.Matchers.isPresent; |
| import static org.hamcrest.CoreMatchers.not; |
| import static org.hamcrest.MatcherAssert.assertThat; |
| import static org.junit.Assert.assertEquals; |
| |
| import com.android.tools.r8.AlwaysClassInline; |
| import com.android.tools.r8.AlwaysInline; |
| import com.android.tools.r8.NeverInline; |
| import com.android.tools.r8.NoHorizontalClassMerging; |
| import com.android.tools.r8.TestParameters; |
| import com.android.tools.r8.TestParametersCollection; |
| import com.android.tools.r8.utils.StringUtils; |
| import com.android.tools.r8.utils.codeinspector.ClassSubject; |
| import com.android.tools.r8.utils.codeinspector.CodeInspector; |
| import com.google.common.collect.ImmutableSet; |
| import java.util.Set; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.Parameterized; |
| |
| @RunWith(Parameterized.class) |
| public class ClassInlinerSimplePairBuilderTest extends ClassInlinerTestBase { |
| |
| private static final String EXPECTED = |
| StringUtils.lines( |
| "[before] first = null", |
| "[after] first = f1", |
| "Pair(f1, <null>)", |
| "[before] second = null", |
| "[after] second = s2", |
| "Pair(<null>, s2)", |
| "[before] first = null", |
| "[after] first = f3", |
| "[before] second = null", |
| "[after] second = s4", |
| "Pair(f3, s4)"); |
| |
| private final TestParameters parameters; |
| |
| @Parameterized.Parameters(name = "{0}") |
| public static TestParametersCollection data() { |
| return getTestParameters().withAllRuntimesAndApiLevels().build(); |
| } |
| |
| public ClassInlinerSimplePairBuilderTest(TestParameters parameters) { |
| this.parameters = parameters; |
| } |
| |
| @Test |
| public void testR8() throws Exception { |
| testForR8(parameters.getBackend()) |
| .addInnerClasses(ClassInlinerSimplePairBuilderTest.class) |
| .addKeepMainRule(TestClass.class) |
| .enableAlwaysClassInlineAnnotations() |
| .enableAlwaysInliningAnnotations() |
| .enableInliningAnnotations() |
| .enableNoHorizontalClassMergingAnnotations() |
| .noMinification() |
| .setMinApi(parameters.getApiLevel()) |
| .compile() |
| .inspect(this::inspect) |
| .run(parameters.getRuntime(), TestClass.class) |
| .assertSuccessWithOutput(EXPECTED); |
| } |
| |
| @Test |
| public void testExpectedBehavior() throws Exception { |
| testForRuntime(parameters) |
| .addInnerClasses(ClassInlinerSimplePairBuilderTest.class) |
| .run(parameters.getRuntime(), TestClass.class) |
| .assertSuccessWithOutput(EXPECTED); |
| } |
| |
| private void inspect(CodeInspector inspector) { |
| ClassSubject clazz = inspector.clazz(TestClass.class); |
| assertThat(inspector.clazz(PairBuilder.class), not(isPresent())); |
| |
| Set<String> expected = ImmutableSet.of(StringBuilder.class.getTypeName()); |
| assertEquals(expected, collectTypes(clazz.uniqueMethodWithName("testSimpleBuilder1"))); |
| assertEquals(expected, collectTypes(clazz.uniqueMethodWithName("testSimpleBuilder2"))); |
| assertEquals(expected, collectTypes(clazz.uniqueMethodWithName("testSimpleBuilder3"))); |
| } |
| |
| static class TestClass { |
| |
| public static void main(String[] args) { |
| testSimpleBuilder1(); |
| testSimpleBuilder2(); |
| testSimpleBuilder3(); |
| } |
| |
| @NeverInline |
| static void testSimpleBuilder1() { |
| System.out.println(new PairBuilder<String, String>().setFirst("f1").build().myToString()); |
| } |
| |
| @NeverInline |
| static void testSimpleBuilder2() { |
| System.out.println(new PairBuilder<String, String>().setSecond("s2").build().myToString()); |
| } |
| |
| @NeverInline |
| static void testSimpleBuilder3() { |
| System.out.println( |
| new PairBuilder<String, String>().setFirst("f3").setSecond("s4").build().myToString()); |
| } |
| } |
| |
| static class Pair<F, S> { |
| final F first; |
| final S second; |
| |
| Pair(F first, S second) { |
| this.first = first; |
| this.second = second; |
| } |
| |
| String myToString() { |
| return "Pair(" |
| + (first == null ? "<null>" : first) |
| + ", " |
| + (second == null ? "<null>" : second) |
| + ")"; |
| } |
| } |
| |
| @AlwaysClassInline |
| @NoHorizontalClassMerging |
| static class PairBuilder<F, S> { |
| |
| F first; |
| S second = null; |
| |
| PairBuilder<F, S> setFirst(F first) { |
| System.out.println("[before] first = " + this.first); |
| this.first = first; |
| System.out.println("[after] first = " + this.first); |
| return this; |
| } |
| |
| PairBuilder<F, S> setSecond(S second) { |
| System.out.println("[before] second = " + this.second); |
| this.second = second; |
| System.out.println("[after] second = " + this.second); |
| return this; |
| } |
| |
| @AlwaysInline |
| public Pair<F, S> build() { |
| return new Pair<>(first, second); |
| } |
| } |
| } |