| // 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.diagnostic; |
| |
| import com.android.tools.r8.keepanno.annotations.KeepForApi; |
| import com.android.tools.r8.origin.Origin; |
| |
| /** A context that references a missing definition in the program, classpath, or library. */ |
| @KeepForApi |
| public interface DefinitionContext { |
| |
| /** The origin of the context. */ |
| Origin getOrigin(); |
| |
| /** Predicate that is true iff this is an instance of {@link DefinitionClassContext}. */ |
| default boolean isClassContext() { |
| return false; |
| } |
| |
| /** Predicate that is true iff this is an instance of {@link DefinitionFieldContext}. */ |
| default boolean isFieldContext() { |
| return false; |
| } |
| |
| /** Predicate that is true iff this is an instance of {@link DefinitionMethodContext}. */ |
| default boolean isMethodContext() { |
| return false; |
| } |
| |
| /** |
| * Return a non-null {@link DefinitionClassContext} if this type is {@link |
| * DefinitionClassContext}. |
| * |
| * @return this with static type of {@link DefinitionClassContext}. |
| */ |
| default DefinitionClassContext asClassContext() { |
| return null; |
| } |
| |
| /** |
| * Return a non-null {@link DefinitionFieldContext} if this type is {@link |
| * DefinitionFieldContext}. |
| * |
| * @return this with static type of {@link DefinitionFieldContext}. |
| */ |
| default DefinitionFieldContext asFieldContext() { |
| return null; |
| } |
| |
| /** |
| * Return a non-null {@link DefinitionMethodContext} if this type is {@link |
| * DefinitionMethodContext}. |
| * |
| * @return this with static type of {@link DefinitionMethodContext}. |
| */ |
| default DefinitionMethodContext asMethodContext() { |
| return null; |
| } |
| } |