kotlinlang #kapt

@alexey.tsvetkov Yes, of course, I understand that IC cannot improve time of AP, but can improve Java compilation time. But release notes also contains line

Compile-avoidance is deactivated if annotation processors are found on the compile classpath

and few lines below there is code example how to register AP configuration to exclude dependencies with AP from compile classpath. And my question is: should it work with kapt out of the box, or should I register kapt by the same way how in release notes example? Incremental compilation of Kotlin is significantly improved our build time. And, because we still have a lot of Java code, It’s just important thing for our project, to achieve incremental Java compilation too. actually what Kotlin IC is doing, even when AP is used in project. Because old Gradle Java IC is disabled if you project contains AP.

1 reply · 2 participants

yan

03/07/2017, 1:53 PM

https://kotlinlang.slack.com/archives/kapt/p1488853942000442 Yes, it’s a compiler plugin, and it can be potentially used with any build system. The Gradle plugin just provides the task that sets the required compiler plugin options.

5 replies · 3 participants

yan

03/15/2017, 12:44 PM

@themarketka Can you please create the issue for this? Any reproducible example is appreciated as well.

2 replies · 2 participants

themarketka

03/23/2017, 4:56 PM

kapt3, kotlin 1.0.6: builds, although shows errors such as

error: cannot find symbol import com.packagename.SomeActivity_;

kapt3, kotlin 1.0.7: fails build, shows the same error kapt3, kotlin 1.1.1: same (using androidannotations and otto)

1 reply · 1 participant

pavlospt

03/27/2017, 11:45 AM

Is there any way to tell kapt Compiler to compile with specific compiler args?

34 replies · 3 participants

snowe

03/31/2017, 1:43 PM

Dang alright. With kotlin is there any way to use annotation processing to insert code or would I have to generate separate classes?

2 replies · 2 participants

pavlospt

04/03/2017, 8:16 AM

When Kapt fails it says something about a log that we should check for more details. Does anyone actually know where that log is?

🤔 2

14 replies · 2 participants

04/16/2017, 4:25 AM

Build system plugin

1 reply · 2 participants

04/19/2017, 1:10 PM

It's not ready, but it's getting there

2 replies · 2 participants

spierce7

05/25/2017, 1:28 AM

does kapt3 perform well? Last I heard annotation processing in kotlin had bad performance. Is that still true?

3 replies · 2 participants

yigit

05/29/2017, 2:40 AM

Trying to debug an annotation processor (using kotlin) on an android app (using kapt) but breakpoints does not work. Any guidence? I'm running:

gw --no-daemon :r:in:k:asDeb -Dkotlin.daemon.jvm.options="-Xdebug,-Xrunjdwp:transport=dt_socket\,address=5005\,server=y\,suspend=y"

after killing both daemons. I can connect, get a thread dump etc but it does not stop in breakpoints. I tried,

suspend=n

, does not help. I've also tried

-Dkotlin.compiler.execution.strategy="in-process"

to debug in gradle process but in that case daemon crashes.

2 replies · 2 participants

greenrobot

06/01/2017, 7:46 PM

org.gradle.api.ProjectConfigurationException: A problem occurred configuring project ':tests:xxx-kotlin-test'.
caused by

kotlin.TypeCastException: null cannot be cast to non-null type org.jetbrains.kotlin.gradle.internal.WrappedVariantData<*>
	at org.jetbrains.kotlin.gradle.internal.Kapt3KotlinGradleSubplugin.createKaptKotlinTask(Kapt3KotlinGradleSubplugin.kt:260)
	at org.jetbrains.kotlin.gradle.internal.Kapt3KotlinGradleSubplugin.apply(Kapt3KotlinGradleSubplugin.kt:150)
	at org.jetbrains.kotlin.gradle.internal.Kapt3KotlinGradleSubplugin.apply(Kapt3KotlinGradleSubplugin.kt:54)
	at org.jetbrains.kotlin.gradle.plugin.SubpluginEnvironment.addSubpluginOptions(KotlinPlugin.kt:679)
	at org.jetbrains.kotlin.gradle.plugin.Kotlin2JvmSourceSetProcessor$doTargetSpecificProcessing$1.execute(KotlinPlugin.kt:121)
	at org.jetbrains.kotlin.gradle.plugin.Kotlin2JvmSourceSetProcessor$doTargetSpecificProcessing$1.execute(KotlinPlugin.kt:93)
	at org.gradle.internal.event.BroadcastDispatch$ActionInvocationHandler.dispatch(BroadcastDispatch.java:89)

4 replies · 2 participants

06/10/2017, 4:29 AM

logs are

00:11:21.355 [DEBUG] [org.gradle.api.Project] [KOTLIN] kapt: Discovered annotation processors: com.google.auto.service.processor.AutoServiceProcessor
00:11:21.355 [DEBUG] [org.gradle.api.Project] [KOTLIN] kapt: Stub annotation generated: /Users/jw/dev/square/cash/thing-processor/build/tmp/kapt/main/wrappers/__gen/KotlinAptAnnotation.class
00:11:21.356 [DEBUG] [org.gradle.api.Project] [KOTLIN] kapt: Wrapper for com.google.auto.service.processor.AutoServiceProcessor generated: /Users/jw/dev/square/cash/thing-processor/build/tmp/kapt/main/wrappers/__gen/AnnotationProcessorWrapper_main_com_google_auto_service_processor_AutoServiceProcessor.class

and then the compiler args

-processor __gen.AnnotationProcessorWrapper_main_com_google_auto_service_processor_AutoServiceProcessor -s /Users/jw/dev/square/cash/thing-processor/build/generated/source/kapt/main -Akapt.annotations=/Users/jw/dev/square/cash/thing-processor/build/tmp/kapt/main/wrappers/annotations.main.txt -Akapt.kotlin.generated=/Users/jw/dev/square/cash/thing-processor/build/tmp/kapt/main/kotlinGenerated /Users/jw/dev/square/cash/thing-processor/build/tmp/kapt/main/java_src/__gen/annotation/Cl.java

1 reply · 2 participants

codeprogression

06/13/2017, 4:02 PM

In the dependencies section of gradle, will

kapt

always be required? IOW, will it ever transition to using

annotationProcessor

kapt "com.google.dagger:dagger-compiler:$daggerVersion"
//vs
annotationProcessor "com.google.dagger:dagger-compiler:$daggerVersion"

2 replies · 2 participants

Eugenio

06/16/2017, 8:57 AM

but in general you should be able to get it working with kapt1

2 replies · 2 participants

yan

06/21/2017, 3:30 PM

@agrosner This is fixed in https://youtrack.jetbrains.com/issue/KT-17245 (Kotlin 1.1.3)

4 replies · 2 participants

yan

07/12/2017, 7:02 PM

No, it is enabled by default.

kapt.generateStubs = true

just allows you to use generated references in Kotlin code.

1 reply · 2 participants

yan

07/31/2017, 7:47 PM

Can you please file an issue for this?

1 reply · 2 participants

08/04/2017, 3:59 PM

Small modules and compilation avoidance are your best hope for fast builds with annotation processors.

2 replies · 2 participants

yan

08/22/2017, 2:42 PM

@mzgreen https://youtrack.jetbrains.com/issue/KT-19700

2 replies · 2 participants

mannodermaus

08/25/2017, 8:39 AM

I’m trying to make my annotation processor support both annotated Java & Kotlin classes, but using a different code generation path for the latter. Is there a way to know that the annotated class is written in Kotlin originally? Seems like

@kotlin.Metadata

isn’t detectable from the processor’s environment. This guy has had a similar issue: https://discuss.kotlinlang.org/t/kotlin-data-classes-inspection-from-annotation-processor/2163

🙇 1

1 reply · 1 participant

vmironov

08/29/2017, 2:11 PM

I believe the problem has nothing to do with your codebase. We started to receive a lot of

error.NonExistentClass

during incremental builds after upgrading to

1.1.4

. Cleaning the project solves the problem, but it makes

kapt

completely unusable. We were forced to downgrade to

1.1.3

1 reply · 2 participants

mzgreen

08/31/2017, 7:33 AM

@yan for me IC seems to be broken in 1.1.4-3. I have to manually clean the project and then build again.

6 replies · 3 participants

simon.vergauwen

09/02/2017, 9:54 AM

Any1 knows if there is a way of figuring out in kapt if my annotated class is sealed?

3 replies · 2 participants

mannodermaus

09/04/2017, 12:01 PM

It’s more about the lack of knowledge about the Kotlin environment in that library, i.e. there is no

assertThat(kotlinc().compile(...)).suceeded()

1 reply · 2 participants

lasse

09/27/2017, 7:12 AM

I am using kapt in a multi-module project together with Toothpick, which is similar to Dagger. When compiling a clean build works fine. Incremental builds usually fail, but retrying sometimes work. It complains about missing symbols. It can’t find all the factories.

1 reply · 2 participants

uhe

09/27/2017, 7:39 AM

@lasse I frequently run into similar issues, where only a clean build would help. Still on gradle 2.3.3, though.

2 replies · 2 participants

bdawg.io

10/24/2017, 9:24 PM

Does anyone know how to add an annotation to a generated class and have it be recognized during the same annotation processing step? Use Case We have a central interface for a data type that we have a custom annotation for. One of the processing steps is to generate a Requery entity with requery’s annotation Expected Result Requery’s annotation processor receives our generated entity during the same build Actual Result A second build has to be ran back-to-back so the generated entity already exists before annotation processing starts

1 reply · 1 participant

Title

bdawg.io

10/24/2017, 9:24 PM

@trevjones ^^

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