| /* |
| * 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.testing.junit; |
| |
| import static com.google.devtools.build.android.desugar.testing.junit.RuntimeMethodHandle.MemberUseContext.METHOD_INVOCATION; |
| |
| import java.lang.annotation.Documented; |
| import java.lang.annotation.ElementType; |
| import java.lang.annotation.Retention; |
| import java.lang.annotation.RetentionPolicy; |
| import java.lang.annotation.Target; |
| import javax.inject.Qualifier; |
| import org.objectweb.asm.tree.ClassNode; |
| |
| /** |
| * Identifies injectable ASM node fields (e.g. {@link org.objectweb.asm.tree.ClassNode}, {@link |
| * org.objectweb.asm.tree.MethodNode}, {@link org.objectweb.asm.tree.FieldNode}) with a qualified |
| * class name. The desugar rule resolves the requested class at runtime, parses it into a {@link |
| * ClassNode}, and assigns the parsed class node to the annotated field. An injectable ASM node |
| * field may have any access modifier (private, package-private, protected, public). Sample usage: |
| * |
| * <pre><code> |
| * @RunWith(JUnit4.class) |
| * public class DesugarRuleTest { |
| * |
| * @Rule |
| * public final DesugarRule desugarRule = |
| * DesugarRule.builder(this, MethodHandles.lookup()) |
| * .addRuntimeInputs("path/to/my_jar.jar") |
| * .build(); |
| * |
| * @Inject |
| * @RuntimeMethodHandle( |
| * className = "my.package.ClassToDesugar", |
| * memberName = "add", |
| * memberDescriptor = "(II)I", |
| * round = 2, |
| * ) |
| * private MethodHandle adder; |
| * |
| * // ... Test methods ... |
| * } |
| * </code></pre> |
| */ |
| @Qualifier |
| @Documented |
| @Target({ElementType.FIELD, ElementType.PARAMETER}) |
| @Retention(RetentionPolicy.RUNTIME) |
| public @interface RuntimeMethodHandle { |
| |
| /** |
| * The fully-qualified class name of the class to load. The format agrees with {@link |
| * Class#getName}. |
| */ |
| String className(); |
| |
| /** If non-empty, load the specified class member (field or method) from the enclosing class. */ |
| String memberName() default ""; |
| |
| /** If non-empty, use the specified member descriptor to disambiguate overloaded methods. */ |
| String memberDescriptor() default ""; |
| |
| MemberUseContext usage() default METHOD_INVOCATION; |
| |
| /** The round during which its associated jar is being used. */ |
| int round() default 1; |
| |
| /** All class member use context types. */ |
| enum MemberUseContext { |
| METHOD_INVOCATION, |
| FIELD_GETTER, |
| FIELD_SETTER, |
| } |
| } |