| // 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.desugar.desugaredlibrary.jdk11; |
| |
| import static com.android.tools.r8.desugar.desugaredlibrary.test.LibraryDesugaringSpecification.CustomConversionVersion.LEGACY; |
| |
| import com.android.tools.r8.desugar.desugaredlibrary.test.LibraryDesugaringSpecification.CustomConversionVersion; |
| import com.android.tools.r8.references.Reference; |
| import com.android.tools.r8.transformers.ClassFileTransformer; |
| import com.android.tools.r8.transformers.MethodTransformer; |
| import com.android.tools.r8.utils.StreamUtils; |
| import com.android.tools.r8.utils.ZipUtils; |
| import java.io.BufferedOutputStream; |
| import java.io.IOException; |
| import java.nio.file.Files; |
| import java.nio.file.OpenOption; |
| import java.nio.file.Path; |
| import java.nio.file.StandardOpenOption; |
| import java.util.HashMap; |
| import java.util.Map; |
| import java.util.zip.ZipEntry; |
| import java.util.zip.ZipOutputStream; |
| import org.objectweb.asm.Opcodes; |
| |
| public class ConversionConverter { |
| |
| private static final Map<String, String> JAVA_WRAP_CONVERT_OWNER = new HashMap<>(); |
| private static final Map<String, String> J$_WRAP_CONVERT_OWNER = new HashMap<>(); |
| |
| static { |
| JAVA_WRAP_CONVERT_OWNER.put( |
| "j$/nio/file/spi/FileSystemProvider", |
| "java/nio/file/spi/FileSystemProvider$VivifiedWrapper"); |
| JAVA_WRAP_CONVERT_OWNER.put( |
| "j$/nio/file/spi/FileTypeDetector", "java/nio/file/spi/FileTypeDetector$VivifiedWrapper"); |
| JAVA_WRAP_CONVERT_OWNER.put( |
| "j$/nio/file/StandardOpenOption", "java/nio/file/StandardOpenOption$EnumConversion"); |
| JAVA_WRAP_CONVERT_OWNER.put( |
| "j$/nio/file/LinkOption", "java/nio/file/LinkOption$EnumConversion"); |
| JAVA_WRAP_CONVERT_OWNER.put("j$/nio/file/Path", "java/nio/file/Path$Wrapper"); |
| JAVA_WRAP_CONVERT_OWNER.put( |
| "j$/nio/file/WatchEvent", "java/nio/file/WatchEvent$VivifiedWrapper"); |
| JAVA_WRAP_CONVERT_OWNER.put( |
| "j$/nio/file/attribute/BasicFileAttributes", |
| "java/nio/file/attribute/BasicFileAttributes$VivifiedWrapper"); |
| JAVA_WRAP_CONVERT_OWNER.put( |
| "j$/nio/file/attribute/BasicFileAttributeView", |
| "java/nio/file/attribute/BasicFileAttributeView$VivifiedWrapper"); |
| JAVA_WRAP_CONVERT_OWNER.put( |
| "j$/nio/file/attribute/FileOwnerAttributeView", |
| "java/nio/file/attribute/FileOwnerAttributeView$VivifiedWrapper"); |
| JAVA_WRAP_CONVERT_OWNER.put( |
| "j$/nio/file/attribute/PosixFileAttributes", |
| "java/nio/file/attribute/PosixFileAttributes$VivifiedWrapper"); |
| JAVA_WRAP_CONVERT_OWNER.put( |
| "j$/nio/file/attribute/PosixFileAttributeView", |
| "java/nio/file/attribute/PosixFileAttributeView$VivifiedWrapper"); |
| JAVA_WRAP_CONVERT_OWNER.put( |
| "j$/nio/file/attribute/PosixFilePermission", |
| "java/nio/file/attribute/PosixFilePermission$EnumConversion"); |
| JAVA_WRAP_CONVERT_OWNER.put( |
| "j$/util/stream/Collector$Characteristics", |
| "java/util/stream/Collector$Characteristics$EnumConversion"); |
| |
| J$_WRAP_CONVERT_OWNER.put( |
| "j$/nio/file/spi/FileSystemProvider", "java/nio/file/spi/FileSystemProvider$Wrapper"); |
| J$_WRAP_CONVERT_OWNER.put( |
| "j$/nio/file/spi/FileTypeDetector", "java/nio/file/spi/FileTypeDetector$Wrapper"); |
| J$_WRAP_CONVERT_OWNER.put( |
| "j$/nio/file/StandardOpenOption", "java/nio/file/StandardOpenOption$EnumConversion"); |
| J$_WRAP_CONVERT_OWNER.put("j$/nio/file/LinkOption", "java/nio/file/LinkOption$EnumConversion"); |
| J$_WRAP_CONVERT_OWNER.put("j$/nio/file/Path", "java/nio/file/Path$VivifiedWrapper"); |
| J$_WRAP_CONVERT_OWNER.put("j$/nio/file/WatchEvent", "java/nio/file/WatchEvent$Wrapper"); |
| J$_WRAP_CONVERT_OWNER.put( |
| "j$/nio/file/attribute/BasicFileAttributes", |
| "java/nio/file/attribute/BasicFileAttributes$Wrapper"); |
| J$_WRAP_CONVERT_OWNER.put( |
| "j$/nio/file/attribute/BasicFileAttributeView", |
| "java/nio/file/attribute/BasicFileAttributeView$Wrapper"); |
| J$_WRAP_CONVERT_OWNER.put( |
| "j$/nio/file/attribute/FileOwnerAttributeView", |
| "java/nio/file/attribute/FileOwnerAttributeView$Wrapper"); |
| J$_WRAP_CONVERT_OWNER.put( |
| "j$/nio/file/attribute/PosixFileAttributes", |
| "java/nio/file/attribute/PosixFileAttributes$Wrapper"); |
| J$_WRAP_CONVERT_OWNER.put( |
| "j$/nio/file/attribute/PosixFileAttributeView", |
| "java/nio/file/attribute/PosixFileAttributeView$Wrapper"); |
| J$_WRAP_CONVERT_OWNER.put( |
| "j$/nio/file/attribute/PosixFilePermission", |
| "java/nio/file/attribute/PosixFilePermission$EnumConversion"); |
| J$_WRAP_CONVERT_OWNER.put( |
| "j$/util/stream/Collector$Characteristics", |
| "java/util/stream/Collector$Characteristics$EnumConversion"); |
| } |
| |
| public static Path convertJar(Path jar, CustomConversionVersion legacy) { |
| String fileName = jar.getFileName().toString(); |
| String newFileName = |
| fileName.substring(0, fileName.length() - ".jar".length()) |
| + (legacy == LEGACY ? "_legacy" : "") |
| + "_converted.jar"; |
| Path convertedJar = jar.getParent().resolve(newFileName); |
| return internalConvert(jar, convertedJar, legacy); |
| } |
| |
| private static synchronized Path internalConvert( |
| Path jar, Path convertedJar, CustomConversionVersion legacy) { |
| if (Files.exists(convertedJar)) { |
| return convertedJar; |
| } |
| |
| OpenOption[] options = |
| new OpenOption[] {StandardOpenOption.CREATE, StandardOpenOption.TRUNCATE_EXISTING}; |
| try (ZipOutputStream out = |
| new ZipOutputStream( |
| new BufferedOutputStream(Files.newOutputStream(convertedJar, options)))) { |
| new ConversionConverter().convert(jar, out, legacy); |
| } catch (IOException e) { |
| throw new RuntimeException(e); |
| } |
| return convertedJar; |
| } |
| |
| private void convert( |
| Path desugaredLibraryFiles, ZipOutputStream out, CustomConversionVersion legacy) |
| throws IOException { |
| ZipUtils.iter( |
| desugaredLibraryFiles, |
| ((entry, input) -> { |
| if (!entry.getName().endsWith(".class")) { |
| return; |
| } |
| if (legacy == LEGACY |
| && (entry.getName().contains("nio.file") || entry.getName().contains("ApiFlips"))) { |
| return; |
| } |
| final byte[] bytes = StreamUtils.streamToByteArrayClose(input); |
| final byte[] rewrittenBytes = |
| transformInvoke(entry.getName().substring(0, entry.getName().length() - 6), bytes); |
| ZipUtils.writeToZipStream(out, entry.getName(), rewrittenBytes, ZipEntry.STORED); |
| })); |
| } |
| |
| private byte[] transformInvoke(String descriptor, byte[] bytes) { |
| return ClassFileTransformer.create(bytes, Reference.classFromDescriptor(descriptor)) |
| .addMethodTransformer(getMethodTransformer()) |
| .transform(); |
| } |
| |
| private MethodTransformer getMethodTransformer() { |
| return new MethodTransformer() { |
| @Override |
| public void visitMethodInsn( |
| int opcode, String owner, String name, String descriptor, boolean isInterface) { |
| if (opcode == Opcodes.INVOKESTATIC && name.equals("wrap_convert")) { |
| if (!JAVA_WRAP_CONVERT_OWNER.containsKey(owner) |
| || !J$_WRAP_CONVERT_OWNER.containsKey(owner)) { |
| throw new RuntimeException("Cannot transform wrap_convert method for " + owner); |
| } |
| if (owner.startsWith("java")) { |
| String newOwner = J$_WRAP_CONVERT_OWNER.get(owner); |
| super.visitMethodInsn(opcode, newOwner, "convert", descriptor, isInterface); |
| return; |
| } else if (owner.startsWith("j$")) { |
| String newOwner = JAVA_WRAP_CONVERT_OWNER.get(owner); |
| super.visitMethodInsn(opcode, newOwner, "convert", descriptor, isInterface); |
| return; |
| } else { |
| throw new RuntimeException("Cannot transform wrap_convert method for " + owner); |
| } |
| } |
| super.visitMethodInsn(opcode, owner, name, descriptor, isInterface); |
| } |
| }; |
| } |
| } |
