| /* |
| * Copyright 2019 The Bazel Authors. All rights reserved. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package com.google.devtools.build.android.desugar.nest; |
| |
| import static com.google.common.truth.Truth.assertThat; |
| |
| import com.google.devtools.build.android.desugar.testing.junit.AsmNode; |
| import com.google.devtools.build.android.desugar.testing.junit.DesugarRule; |
| import com.google.devtools.build.android.desugar.testing.junit.DesugarRunner; |
| import com.google.devtools.build.android.desugar.testing.junit.DynamicClassLiteral; |
| import com.google.devtools.build.android.desugar.testing.junit.JdkSuppress; |
| import com.google.devtools.build.android.desugar.testing.junit.JdkVersion; |
| import com.google.devtools.build.android.desugar.testing.junit.RuntimeMethodHandle; |
| import java.lang.invoke.MethodHandle; |
| import java.lang.invoke.MethodHandles; |
| import java.lang.reflect.Field; |
| import java.lang.reflect.Method; |
| import java.nio.file.Paths; |
| import java.util.Arrays; |
| import java.util.List; |
| import java.util.stream.Collectors; |
| import javax.inject.Inject; |
| import org.junit.Before; |
| import org.junit.Rule; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.objectweb.asm.tree.ClassNode; |
| |
| /** Tests for accessing private fields from another class within a nest. */ |
| @RunWith(DesugarRunner.class) |
| @JdkSuppress(minJdkVersion = JdkVersion.V11) |
| public final class NestDesugaringFieldAccessTest { |
| |
| @Rule |
| public final DesugarRule desugarRule = |
| DesugarRule.builder(this, MethodHandles.lookup()) |
| .addSourceInputs(Paths.get(System.getProperty("input_srcs"))) |
| .setWorkingJavaPackage( |
| "com.google.devtools.build.android.desugar.nest.testsrc.simpleunit.field") |
| .addJavacOptions("-source 11", "-target 11") |
| .addCommandOptions("desugar_nest_based_private_access", "true") |
| .build(); |
| |
| @Inject |
| @DynamicClassLiteral("FieldNest$FieldOwnerMate") |
| private Class<?> mate; |
| |
| private Object mateInstance; |
| |
| @Before |
| public void loadClasses() throws Exception { |
| mateInstance = mate.getConstructor().newInstance(); |
| } |
| |
| @Test |
| public void inputClassFileMajorVersions( |
| @AsmNode(className = "FieldNest", round = 0) ClassNode beforeDesugarClassNode, |
| @AsmNode(className = "FieldNest", round = 1) ClassNode afterDesugarClassNode) { |
| assertThat(beforeDesugarClassNode.version).isEqualTo(JdkVersion.V11); |
| assertThat(afterDesugarClassNode.version).isEqualTo(JdkVersion.V1_7); |
| } |
| |
| @Test |
| public void bridgeMethodGeneration() { |
| List<String> bridgeMethodNames = |
| Arrays.stream(mate.getDeclaredMethods()) |
| .map(Method::getName) |
| .filter(name -> !name.startsWith("$jacoco")) |
| .collect(Collectors.toList()); |
| assertThat(bridgeMethodNames) |
| .containsExactly( |
| "privateStaticField$bridge_getter", |
| "privateStaticField$bridge_setter", |
| "privateInstanceField$bridge_getter", |
| "privateInstanceField$bridge_setter", |
| "getPrivateStaticFieldInBoundary", |
| "getPrivateInstanceFieldInBoundary", |
| "privateStaticFieldReadOnly$bridge_getter", |
| "privateInstanceFieldReadOnly$bridge_getter", |
| "privateStaticArrayField$bridge_getter", |
| "privateInstanceArrayField$bridge_getter"); |
| } |
| |
| @Test |
| public void getStaticField( |
| @RuntimeMethodHandle(className = "FieldNest", memberName = "getStaticField") |
| MethodHandle getStaticField) |
| throws Throwable { |
| long result = (long) getStaticField.invoke(); |
| assertThat(result).isEqualTo(10L); |
| } |
| |
| @Test |
| public void getInstanceField( |
| @RuntimeMethodHandle(className = "FieldNest", memberName = "getInstanceField") |
| MethodHandle getInstanceField) |
| throws Throwable { |
| long result = (long) getInstanceField.invoke(mateInstance); |
| assertThat(result).isEqualTo(20); |
| } |
| |
| @Test |
| public void getPrivateStaticField( |
| @RuntimeMethodHandle(className = "FieldNest", memberName = "getPrivateStaticField") |
| MethodHandle getPrivateStaticField) |
| throws Throwable { |
| long result = (long) getPrivateStaticField.invoke(); |
| assertThat(result).isEqualTo(30L); |
| } |
| |
| @Test |
| public void setPrivateStaticField( |
| @RuntimeMethodHandle(className = "FieldNest", memberName = "setPrivateStaticField") |
| MethodHandle setPrivateStaticField) |
| throws Throwable { |
| long result = (long) setPrivateStaticField.invoke((long) 35L); |
| assertThat(result).isEqualTo(35L); |
| |
| Field privateStaticField = mate.getDeclaredField("privateStaticField"); |
| privateStaticField.setAccessible(true); |
| assertThat(privateStaticField.get(null)).isEqualTo(35L); |
| } |
| |
| @Test |
| public void getPrivateInstanceField( |
| @RuntimeMethodHandle(className = "FieldNest", memberName = "getPrivateInstanceField") |
| MethodHandle getPrivateInstanceField) |
| throws Throwable { |
| int result = (int) getPrivateInstanceField.invoke(mateInstance); |
| assertThat(result).isEqualTo(40); |
| } |
| |
| @Test |
| public void setPrivateInstanceField( |
| @RuntimeMethodHandle(className = "FieldNest", memberName = "setPrivateInstanceField") |
| MethodHandle setPrivateInstanceField) |
| throws Throwable { |
| int result = (int) setPrivateInstanceField.invoke(mateInstance, (int) 45); |
| assertThat(result).isEqualTo(45); |
| |
| Field privateInstanceField = mate.getDeclaredField("privateInstanceField"); |
| privateInstanceField.setAccessible(true); |
| assertThat(privateInstanceField.get(mateInstance)).isEqualTo(45); |
| } |
| |
| @Test |
| public void getPrivateStaticFieldReadOnly( |
| @RuntimeMethodHandle(className = "FieldNest", memberName = "getPrivateStaticFieldReadOnly") |
| MethodHandle getPrivateStaticFieldReadOnly) |
| throws Throwable { |
| long result = (long) getPrivateStaticFieldReadOnly.invoke(); |
| assertThat(result).isEqualTo(50L); |
| } |
| |
| @Test |
| public void getPrivateInstanceFieldReadOnly( |
| @RuntimeMethodHandle(className = "FieldNest", memberName = "getPrivateInstanceFieldReadOnly") |
| MethodHandle getPrivateInstanceFieldReadOnly) |
| throws Throwable { |
| long result = (long) getPrivateInstanceFieldReadOnly.invoke(mateInstance); |
| assertThat(result).isEqualTo(60L); |
| } |
| |
| @Test |
| public void getPrivateInstanceFieldReadOnly_trace( |
| @RuntimeMethodHandle(className = "FieldNest", memberName = "getPrivateInstanceFieldReadOnly") |
| MethodHandle getPrivateInstanceFieldReadOnly) |
| throws Throwable { |
| long result = (long) getPrivateInstanceFieldReadOnly.invoke(mateInstance); |
| assertThat(result).isEqualTo(60L); |
| } |
| |
| @Test |
| public void getPrivateStaticFieldInBoundary( |
| @RuntimeMethodHandle(className = "FieldNest", memberName = "getPrivateStaticFieldInBoundary") |
| MethodHandle getPrivateStaticFieldInBoundary) |
| throws Throwable { |
| long result = (long) getPrivateStaticFieldInBoundary.invoke(); |
| assertThat(result).isEqualTo(70L); |
| } |
| |
| @Test |
| public void getPrivateInstanceFieldInBoundary( |
| @RuntimeMethodHandle( |
| className = "FieldNest", |
| memberName = "getPrivateInstanceFieldInBoundary") |
| MethodHandle getPrivateInstanceFieldInBoundary) |
| throws Throwable { |
| int result = (int) getPrivateInstanceFieldInBoundary.invoke(mateInstance); |
| assertThat(result).isEqualTo(80); |
| } |
| |
| @Test |
| public void getPrivateStaticArrayFieldElement( |
| @RuntimeMethodHandle( |
| className = "FieldNest", |
| memberName = "getPrivateStaticArrayFieldElement") |
| MethodHandle getPrivateStaticArrayFieldElement) |
| throws Throwable { |
| long[] arrayFieldInitialValue = {100L, 200L, 300L}; |
| |
| Field field = mate.getDeclaredField("privateStaticArrayField"); |
| field.setAccessible(true); |
| field.set(null, arrayFieldInitialValue); |
| |
| long result = (long) getPrivateStaticArrayFieldElement.invoke(1); // 1 is for index. |
| assertThat(result).isEqualTo(200L); |
| } |
| |
| @Test |
| public void setPrivateStaticArrayFieldElement( |
| @RuntimeMethodHandle( |
| className = "FieldNest", |
| memberName = "setPrivateStaticArrayFieldElement") |
| MethodHandle setPrivateStaticArrayFieldElement) |
| throws Throwable { |
| long[] arrayFieldInitialValue = {200L, 300L, 400L}; |
| long overriddenValue = 3000L; |
| |
| Field field = mate.getDeclaredField("privateStaticArrayField"); |
| field.setAccessible(true); |
| field.set(null, arrayFieldInitialValue); |
| |
| long result = (long) setPrivateStaticArrayFieldElement.invoke(1, overriddenValue); |
| assertThat(result).isEqualTo(overriddenValue); |
| |
| long[] actual = (long[]) field.get(null); |
| assertThat(actual).asList().containsExactly(200L, 3000L, 400L).inOrder(); |
| } |
| |
| @Test |
| public void getPrivateInstanceArrayFieldElement( |
| @RuntimeMethodHandle( |
| className = "FieldNest", |
| memberName = "getPrivateInstanceArrayFieldElement") |
| MethodHandle getPrivateInstanceArrayFieldElement) |
| throws Throwable { |
| int[] arrayFieldInitialValue = {300, 400, 500}; |
| |
| Field field = mate.getDeclaredField("privateInstanceArrayField"); |
| field.setAccessible(true); |
| field.set(mateInstance, arrayFieldInitialValue); |
| |
| int result = (int) getPrivateInstanceArrayFieldElement.invoke(mateInstance, 1); |
| assertThat(result).isEqualTo(400); |
| } |
| |
| @Test |
| public void setPrivateInstanceArrayFieldElement( |
| @RuntimeMethodHandle( |
| className = "FieldNest", |
| memberName = "setPrivateInstanceArrayFieldElement") |
| MethodHandle setPrivateInstanceArrayFieldElement) |
| throws Throwable { |
| int[] arrayFieldInitialValue = {400, 500, 600}; |
| int overriddenValue = 5000; |
| |
| Field field = mate.getDeclaredField("privateInstanceArrayField"); |
| field.setAccessible(true); |
| field.set(mateInstance, arrayFieldInitialValue); |
| |
| long result = |
| (long) setPrivateInstanceArrayFieldElement.invoke(mateInstance, 1, overriddenValue); |
| |
| assertThat(result).isEqualTo(overriddenValue); |
| |
| int[] actual = (int[]) field.get(mateInstance); |
| assertThat(actual).asList().containsExactly(400, 5000, 600).inOrder(); |
| } |
| |
| @Test |
| public void compoundSetPrivateStaticField( |
| @RuntimeMethodHandle(className = "FieldNest", memberName = "compoundSetPrivateStaticField") |
| MethodHandle compoundSetPrivateStaticField) |
| throws Throwable { |
| long fieldInitialValue = 100; |
| long fieldValueDelta = 20; |
| |
| Field field = mate.getDeclaredField("privateStaticField"); |
| field.setAccessible(true); |
| field.set(null, fieldInitialValue); |
| |
| long result = (long) compoundSetPrivateStaticField.invoke(fieldValueDelta); |
| assertThat(result).isEqualTo(fieldInitialValue + fieldValueDelta); |
| |
| assertThat(field.get(null)).isEqualTo(fieldInitialValue + fieldValueDelta); |
| } |
| |
| @Test |
| public void preIncrementPrivateStaticField( |
| @RuntimeMethodHandle(className = "FieldNest", memberName = "preIncrementPrivateStaticField") |
| MethodHandle preIncrementPrivateStaticField) |
| throws Throwable { |
| long fieldInitialValue = 200; |
| |
| Field field = mate.getDeclaredField("privateStaticField"); |
| field.setAccessible(true); |
| field.set(null, fieldInitialValue); |
| |
| long result = (long) preIncrementPrivateStaticField.invoke(); |
| assertThat(result).isEqualTo(fieldInitialValue + 1); |
| |
| assertThat(field.get(null)).isEqualTo(fieldInitialValue + 1); |
| } |
| |
| @Test |
| public void postIncrementPrivateStaticField( |
| @RuntimeMethodHandle(className = "FieldNest", memberName = "postIncrementPrivateStaticField") |
| MethodHandle postIncrementPrivateStaticField) |
| throws Throwable { |
| long fieldInitialValue = 300; |
| |
| Field field = mate.getDeclaredField("privateStaticField"); |
| field.setAccessible(true); |
| field.set(null, fieldInitialValue); |
| |
| long result = (long) postIncrementPrivateStaticField.invoke(); |
| assertThat(result).isEqualTo(fieldInitialValue); |
| |
| assertThat(field.get(null)).isEqualTo(fieldInitialValue + 1); |
| } |
| |
| @Test |
| public void compoundSetPrivateInstanceField( |
| @RuntimeMethodHandle(className = "FieldNest", memberName = "compoundSetPrivateInstanceField") |
| MethodHandle compoundSetPrivateInstanceField) |
| throws Throwable { |
| int fieldInitialValue = 400; |
| int fieldDelta = 10; |
| |
| Field field = mate.getDeclaredField("privateInstanceField"); |
| field.setAccessible(true); |
| field.set(mateInstance, fieldInitialValue); |
| |
| int result = (int) compoundSetPrivateInstanceField.invoke(mateInstance, fieldDelta); |
| assertThat(result).isEqualTo(fieldInitialValue + fieldDelta); |
| |
| assertThat(field.get(mateInstance)).isEqualTo(fieldInitialValue + fieldDelta); |
| } |
| |
| @Test |
| public void preIncrementPrivateInstanceField( |
| @RuntimeMethodHandle(className = "FieldNest", memberName = "preIncrementPrivateInstanceField") |
| MethodHandle preIncrementPrivateInstanceField) |
| throws Throwable { |
| int fieldInitialValue = 500; |
| |
| Field field = mate.getDeclaredField("privateInstanceField"); |
| field.setAccessible(true); |
| field.set(mateInstance, fieldInitialValue); |
| |
| int result = (int) preIncrementPrivateInstanceField.invoke(mateInstance); |
| assertThat(result).isEqualTo(fieldInitialValue + 1); |
| |
| assertThat(field.get(mateInstance)).isEqualTo(fieldInitialValue + 1); |
| } |
| |
| @Test |
| public void postIncrementPrivateInstanceField( |
| @RuntimeMethodHandle( |
| className = "FieldNest", |
| memberName = "postIncrementPrivateInstanceField") |
| MethodHandle postIncrementPrivateInstanceField) |
| throws Throwable { |
| int fieldInitialValue = 600; |
| |
| Field field = mate.getDeclaredField("privateInstanceField"); |
| field.setAccessible(true); |
| field.set(mateInstance, fieldInitialValue); |
| |
| int result = (int) postIncrementPrivateInstanceField.invoke(mateInstance); |
| assertThat(result).isEqualTo(fieldInitialValue); |
| |
| assertThat(field.get(mateInstance)).isEqualTo(fieldInitialValue + 1); |
| } |
| } |