Question

在Kotlin 1.3.30中，添加了对增量注释处理的支持：https://blog.jetbrains.com/kotlin/2019/04/kotlin-1-3-30-released/ 根据文档：

Note that in the current implementation, using any non-incremental annotation processor or a change in dependency’s ABI (so far, including modifying internal declarations) will lead to non-incremental annotation processing for a given module.

我有一个带有多个注释处理器的多模块项目。其中只有一些是增量的。据我所知，至少有一些模块仅使用增量注释处理器。

我的问题是：有没有办法检查增量注释处理是否发生？例如。 Gradle中是否有任何特定的控制台日志表明这一点？我想确认实际上使用了增量注释处理。

Answer 1

我能够通过添加来确定

kapt.verbose=true

根项目中gradle.properties中的

。例如，这导致在控制台中打印以下内容。更改公共方法：

Javac options: {}
[incremental apt] Changed files: [/Users/me/workspace/my-project/core/common/build/tmp/kapt3/stubs/foo/bar/ChangedClassName.java]
...
[INFO] Need to discovery annotation processors in the AP classpath
[INFO] Annotation processors: toothpick.compiler.factory.FactoryProcessor, toothpick.compiler.memberinjector.MemberInjectorProcessor
[INFO] Processing java sources with annotation processors: /Users/me/workspace/my-project/core/common/build/tmp/kapt3/stubs/foo/bar/ChangedClassName.java
[INFO] Annotation processing complete, errors: 0, warnings: 0
[INFO] Annotation processor stats:
[INFO] IncrementalProcessor: total: 61 ms, init: 1 ms, 3 round(s): 59 ms, 0 ms, 1 ms
[INFO] IncrementalProcessor: total: 1 ms, init: 1 ms, 3 round(s): 0 ms, 0 ms, 0 ms

这是使用增量注释处理的时间。进行干净构建时，将打印：

Javac options: {}
[incremental apt] Changed files: []
...
[INFO] Need to discovery annotation processors in the AP classpath
[INFO] Annotation processors: toothpick.compiler.factory.FactoryProcessor, toothpick.compiler.memberinjector.MemberInjectorProcessor
[INFO] Processing java sources with annotation processors: [ALL THE  FILES IN THE MODULE ARE LISTED HERE]
[INFO] Annotation processing complete, errors: 0, warnings: 0
[INFO] Annotation processor stats:
[INFO] IncrementalProcessor: total: 124 ms, init: 1 ms, 3 round(s): 122 ms, 1 ms, 0 ms
[INFO] IncrementalProcessor: total: 1 ms, init: 0 ms, 3 round(s): 1 ms, 0 ms, 0 ms

Toothpick是我正在使用的DI框架，因为2.x支持增量注释处理。

如果有一个不是增量注释的注释处理器，它也会打印例如：

[INFO] Incremental KAPT support is disabled. Processors that are not incremental: butterknife.compiler.ButterKnifeProcessor.

检查kapt是否使用增量注释处理

1 个答案: