| // Copyright (c) 2021, 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.utils; |
| |
| import com.android.tools.r8.errors.Unreachable; |
| import com.android.tools.r8.graph.DexProgramClass; |
| import com.android.tools.r8.graph.DexString; |
| import com.android.tools.r8.graph.DexType; |
| import java.util.Map; |
| |
| /** Abstraction to allow removal of the source file content prior to collecting DEX items. */ |
| public abstract class OriginalSourceFiles { |
| |
| private static final OriginalSourceFiles UNREACHABLE = |
| new OriginalSourceFiles() { |
| @Override |
| public DexString getOriginalSourceFile(DexProgramClass clazz) { |
| throw new Unreachable(); |
| } |
| }; |
| |
| private static final OriginalSourceFiles FROM_CLASSES = |
| new OriginalSourceFiles() { |
| @Override |
| public DexString getOriginalSourceFile(DexProgramClass clazz) { |
| return clazz.getSourceFile(); |
| } |
| }; |
| |
| /** For compilations where original source files should never be needed. */ |
| public static OriginalSourceFiles unreachable() { |
| return UNREACHABLE; |
| } |
| |
| /** For compilations where the original source files is still valid on the classes. */ |
| public static OriginalSourceFiles fromClasses() { |
| return FROM_CLASSES; |
| } |
| |
| /** Saved mapping of original source files prior to mutating the file on classes. */ |
| public static OriginalSourceFiles fromMap(Map<DexType, DexString> map) { |
| return new OriginalSourceFiles() { |
| @Override |
| public DexString getOriginalSourceFile(DexProgramClass clazz) { |
| return map.get(clazz.getType()); |
| } |
| }; |
| } |
| |
| public abstract DexString getOriginalSourceFile(DexProgramClass clazz); |
| } |