Issue: Integration Problems with kotlin-suspend-transform-compiler-plugin

[DarshanNairDiscovery]

I am trying to integrate this lib and getting error:

1. build.gradle.kts

plugins {
    ...
    id("love.forte.plugin.suspend-transform") version "0.8.0-beta1"
}

suspendTransform {
    enabled = true
    includeRuntime = true
}

2. Kotlin class

import kotlinx.coroutines.*
import love.forte.plugin.suspendtrans.annotation.JsPromise

class MyClass {
    @JsPromise
    suspend fun fetchData(): String {
        delay(1000)
        return "Hello from Coroutine"
    }
}

3. Using Libs versions as:

kotlin = "2.0.0"
coroutinesVersion = "1.8.0"

Problems

1. IDE Error:
   Even after using @JsPromise, I get the following IDE error:
   Declaration of such kind (suspend function) can't be exported to JS

2. Runtime Error:
   When running jsBrowserDevelopmentExecutableDistribution, I receive the following error:

java.lang.IllegalArgumentException: Annotations should be not empty
	at org.jetbrains.kotlin.fir.extensions.predicate.DeclarationPredicate$Annotated.<init>(DeclarationPredicate.kt:51)
	at org.jetbrains.kotlin.fir.extensions.predicate.DeclarationPredicate$Annotated.<init>(DeclarationPredicate.kt)
	at org.jetbrains.kotlin.fir.extensions.predicate.DeclarationPredicate$AnnotatedWith.<init>(DeclarationPredicate.kt:64)
	at org.jetbrains.kotlin.fir.extensions.predicate.DeclarationPredicate$BuilderContext.annotated(DeclarationPredicate.kt:130)
	at org.jetbrains.kotlin.fir.extensions.predicate.DeclarationPredicate$BuilderContext.annotated(DeclarationPredicate.kt:118)
	at love.forte.plugin.suspendtrans.fir.SuspendTransformFirTransformer.<init>(SuspendTransformFirTransformer.kt:283)
	at love.forte.plugin.suspendtrans.fir.SuspendTransformFirExtensionRegistrar.configurePlugin$lambda$0(SuspendTransformFirExtensionRegistrar.kt:14)
	at org.jetbrains.kotlin.fir.extensions.FirExtensionService.registerExtensions(FirExtensionService.kt:43)
	at org.jetbrains.kotlin.fir.extensions.FirExtensionRegistrarKt.registerExtensions(FirExtensionRegistrar.kt:285)
	at org.jetbrains.kotlin.fir.session.FirSessionConfigurator.configure(FirSessionConfigurator.kt:53)
	at org.jetbrains.kotlin.fir.session.FirAbstractSessionFactory.createModuleBasedSession(FirAbstractSessionFactory.kt:119)
	at org.jetbrains.kotlin.fir.session.FirJsSessionFactory.createModuleBasedSession(FirJsSessionFactory.kt:47)
	at org.jetbrains.kotlin.cli.common.FirSessionConstructionUtilsKt.prepareJsSessions(FirSessionConstructionUtils.kt:156)
	at org.jetbrains.kotlin.cli.js.klib.JsCompilerPipelineKt.compileModulesToAnalyzedFirWithLightTree(jsCompilerPipeline.kt:382)
	at org.jetbrains.kotlin.cli.js.K2JsIrCompiler.processSourceModuleWithK2(K2JsIrCompiler.kt:584)
	at org.jetbrains.kotlin.cli.js.K2JsIrCompiler.produceSourceModule(K2JsIrCompiler.kt:485)
	at org.jetbrains.kotlin.cli.js.K2JsIrCompiler.doExecute(K2JsIrCompiler.kt:325)
	at org.jetbrains.kotlin.cli.js.K2JSCompiler.doExecute(K2JSCompiler.java:109)
	at org.jetbrains.kotlin.cli.js.K2JSCompiler.doExecute(K2JSCompiler.java:72)
	at org.jetbrains.kotlin.cli.common.CLICompiler.execImpl(CLICompiler.kt:104)
	at org.jetbrains.kotlin.cli.common.CLICompiler.execImpl(CLICompiler.kt:48)
	at org.jetbrains.kotlin.cli.common.CLITool.exec(CLITool.kt:101)
	at org.jetbrains.kotlin.incremental.IncrementalJsCompilerRunner.runCompiler(IncrementalJsCompilerRunner.kt:211)
	at org.jetbrains.kotlin.incremental.IncrementalJsCompilerRunner.runCompiler(IncrementalJsCompilerRunner.kt:86)
	at org.jetbrains.kotlin.incremental.IncrementalCompilerRunner.doCompile(IncrementalCompilerRunner.kt:506)
	at org.jetbrains.kotlin.incremental.IncrementalCompilerRunner.compileImpl(IncrementalCompilerRunner.kt:423)
	at org.jetbrains.kotlin.incremental.IncrementalCompilerRunner.compileNonIncrementally(IncrementalCompilerRunner.kt:301)
	at org.jetbrains.kotlin.incremental.IncrementalCompilerRunner.compile(IncrementalCompilerRunner.kt:129)
	at org.jetbrains.kotlin.incremental.IncrementalCompilerRunner.compile$default(IncrementalCompilerRunner.kt:113)
	at org.jetbrains.kotlin.daemon.CompileServiceImplBase.execJsIncrementalCompiler(CompileServiceImpl.kt:609)
	at org.jetbrains.kotlin.daemon.CompileServiceImplBase.access$execJsIncrementalCompiler(CompileServiceImpl.kt:92)
	at org.jetbrains.kotlin.daemon.CompileServiceImpl.compile(CompileServiceImpl.kt:1759)
	at jdk.internal.reflect.GeneratedMethodAccessor14.invoke(Unknown Source)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.base/java.lang.reflect.Method.invoke(Unknown Source)
	at java.rmi/sun.rmi.server.UnicastServerRef.dispatch(Unknown Source)
	at java.rmi/sun.rmi.transport.Transport$1.run(Unknown Source)
	at java.rmi/sun.rmi.transport.Transport$1.run(Unknown Source)
	at java.base/java.security.AccessController.doPrivileged(Unknown Source)
	at java.rmi/sun.rmi.transport.Transport.serviceCall(Unknown Source)
	at java.rmi/sun.rmi.transport.tcp.TCPTransport.handleMessages(Unknown Source)
	at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(Unknown Source)
	at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(Unknown Source)
	at java.base/java.security.AccessController.doPrivileged(Unknown Source)
	at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(Unknown Source)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at java.base/java.lang.Thread.run(Unknown Source)

Am not able to RCA this, can you help where am going wrong please?

[ForteScarlet]

Hi,
about the runtime error java.lang.IllegalArgumentException: Annotations should be not empty,
You could try to add useJsDefault to suspendTransform:

suspendTransform {
    enabled = true
    includeRuntime = true

    useJsDefault() // Using the default annotation and runtime configurations
}

This can be triggered by annotation information that is not configured by default.

About the @JsExport, you can try the following configuration:

suspendTransform {
    enabled = true
    includeRuntime = true

    // useJsDefault()

    addJsTransformers(
        SuspendTransformConfiguration.jsPromiseTransformer.copy(
            copyAnnotationExcludes = listOf(
                ClassInfo("kotlin.js", "JsExport.Ignore")
            )
        )
    )
}

and the MyClass:

@file:OptIn(ExperimentalJsExport::class)
import kotlinx.coroutines.delay
import love.forte.plugin.suspendtrans.annotation.JsPromise

@JsExport
class MyClass {

    @JsPromise
    @JsExport.Ignore
    suspend fun fetchData(): String {
        delay(1000)
        return "Hello from Coroutine"
    }
}

If a ts is generated, it probably looks like this:

type Nullable<T> = T | null | undefined
export declare class MyClass {
    constructor();
    fetchDataAsync(): Promise<string>;
}
export declare namespace MyClass {
    class $fetchDataCOROUTINE$0 /* extends CoroutineImpl */ {
        constructor(_this_: MyClass, resultContinuation: any/* Continuation<string> */);
    }
}