| // Copyright (c) 2022, 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 com.android.tools.r8.cf.CfVersion; |
| import java.util.List; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.Parameterized; |
| import org.junit.runners.Parameterized.Parameter; |
| import org.junit.runners.Parameterized.Parameters; |
| import org.objectweb.asm.ClassWriter; |
| import org.objectweb.asm.MethodVisitor; |
| import org.objectweb.asm.Opcodes; |
| |
| @RunWith(Parameterized.class) |
| public class SupportedClassFileVersions extends TestBase implements Opcodes { |
| |
| @Parameter(0) |
| public TestParameters parameters; |
| |
| @Parameter(1) |
| public CfVersion version; |
| |
| @Parameters(name = "{0}, CF version = {1}") |
| public static List<Object[]> data() { |
| return buildParameters( |
| getTestParameters().withAllRuntimes().withAllApiLevelsAlsoForCf().build(), CfVersion.all()); |
| } |
| |
| @Test |
| public void testDesugar() throws Exception { |
| testForDesugaring(parameters) |
| .addProgramClassFileData(dump(version)) |
| .run(parameters.getRuntime(), "Test") |
| .applyIf( |
| c -> |
| DesugarTestConfiguration.isNotDesugared(c) // This implies CF runtime. |
| && version.major() > parameters.asCfRuntime().getVm().getClassfileVersion(), |
| r -> r.assertFailureWithErrorThatThrows(UnsupportedClassVersionError.class), |
| r -> r.assertSuccessWithOutputLines("Hello, world!")); |
| } |
| |
| @Test |
| public void testR8() throws Exception { |
| parameters.assumeR8TestParameters(); |
| testForR8(parameters.getBackend()) |
| .addProgramClassFileData(dump(version)) |
| .addKeepMainRule("Test") |
| .setMinApi(parameters) |
| .run(parameters.getRuntime(), "Test") |
| .applyIf( |
| parameters.isCfRuntime() |
| && version.major() > parameters.asCfRuntime().getVm().getClassfileVersion(), |
| r -> r.assertFailureWithErrorThatThrows(UnsupportedClassVersionError.class), |
| r -> r.assertSuccessWithOutputLines("Hello, world!")); |
| } |
| |
| public static byte[] dump(CfVersion version) { |
| // Generate a class file with a version higher than the supported one. |
| ClassWriter classWriter = new ClassWriter(ClassWriter.COMPUTE_FRAMES); |
| MethodVisitor methodVisitor; |
| classWriter.visit( |
| version.raw(), ACC_PUBLIC + ACC_SUPER, "Test", null, "java/lang/Object", null); |
| { |
| methodVisitor = classWriter.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null); |
| methodVisitor.visitCode(); |
| methodVisitor.visitVarInsn(ALOAD, 0); |
| methodVisitor.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V", false); |
| methodVisitor.visitInsn(RETURN); |
| methodVisitor.visitMaxs(1, 1); |
| methodVisitor.visitEnd(); |
| } |
| |
| { |
| methodVisitor = |
| classWriter.visitMethod( |
| ACC_PUBLIC | ACC_STATIC, "main", "([Ljava/lang/String;)V", null, null); |
| methodVisitor.visitCode(); |
| methodVisitor.visitFieldInsn(GETSTATIC, "java/lang/System", "out", "Ljava/io/PrintStream;"); |
| methodVisitor.visitLdcInsn("Hello, world!"); |
| methodVisitor.visitMethodInsn( |
| INVOKEVIRTUAL, "java/io/PrintStream", "println", "(Ljava/lang/Object;)V", false); |
| methodVisitor.visitInsn(RETURN); |
| methodVisitor.visitMaxs(2, 1); |
| methodVisitor.visitEnd(); |
| } |
| classWriter.visitEnd(); |
| return classWriter.toByteArray(); |
| } |
| } |