v0.4.1 Expose CancellationException.

Author: Gregory Lureau

build.gradle.kts

@@ -24,7 +24,7 @@ plugins {
 
 allprojects {
     group = "deezer.kustomexport"
-    version = "0.4.0"
+    version = "0.4.1"
 
     repositories {
         mavenLocal()

compiler/src/main/kotlin/deezer/kustomexport/compiler/js/Exceptions.kt

@@ -37,6 +37,9 @@ val CLASS_CAST_EXCEPTION = ClassName("kotlin", "ClassCastException")
 val ASSERTION_ERROR = ClassName("kotlin", "AssertionError")
 val NO_SUCH_ELEMENT_EXCEPTION = ClassName("kotlin", "NoSuchElementException")
 val ARITHMETIC_EXCEPTION = ClassName("kotlin", "ArithmeticException")
+// Coroutines
+val CANCELLATION_EXCEPTION = ClassName("kotlinx.coroutines", "CancellationException")
+val TIMEOUT_CANCELLATION_EXCEPTION = ClassName("kotlinx.coroutines", "TimeoutCancellationException")
 
 const val EXCEPTION_JS_PACKAGE = "deezer.kustomexport"
 fun TypeName.toJsException(): ClassName = ClassName(EXCEPTION_JS_PACKAGE, (this as ClassName).simpleName)
@@ -58,4 +61,6 @@ val ALL_KOTLIN_EXCEPTIONS = listOf(
     ASSERTION_ERROR,
     NO_SUCH_ELEMENT_EXCEPTION,
     ARITHMETIC_EXCEPTION,
+    CANCELLATION_EXCEPTION,
+    TIMEOUT_CANCELLATION_EXCEPTION
 )

lib-coroutines/build.gradle.kts

@@ -17,6 +17,12 @@ kotlin {
             languageSettings.optIn("kotlin.RequiresOptIn")
             languageSettings.optIn("kotlin.js.ExperimentalJsExport")
         }
+        val commonMain by getting {
+            dependencies {
+                implementation(project(":lib"))
+                implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:1.6.0")
+            }
+        }
     }
 
     targets.all {

lib-coroutines/src/commonMain/kotlin/deezer/kustomexport/Exceptions.kt

@@ -0,0 +1,41 @@
+/*
+ * Copyright 2022 Deezer.
+ *
+ * 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.
+ */
+
+@file:Suppress("NON_EXPORTABLE_TYPE")
+@file:OptIn(ExperimentalJsExport::class)
+
+package deezer.kustomexport
+
+import kotlin.js.ExperimentalJsExport
+import kotlin.js.JsExport
+import kotlinx.coroutines.CancellationException as CommonCancellationException
+import kotlinx.coroutines.TimeoutCancellationException as CommonTimeoutCancellationException
+
+@JsExport
+open class CancellationException(message: String? = null, cause: Throwable? = null) :
+    IllegalStateException(message, cause) {
+    override fun import() = CommonCancellationException(message, cause)
+}
+
+fun CommonCancellationException.export() = CancellationException(message, cause)
+
+// WARNING: as `coroutine` field and ctor are internal in kotlin implementation, we can't export it properly.
+// Current solution: ignore this field and import()
+@JsExport
+open class TimeoutCancellationException(message: String?) : CancellationException(message)
+
+fun CommonTimeoutCancellationException.export() = TimeoutCancellationException(message)

samples/src/commonMain/kotlin/sample/_exception/ExceptionBuilder.kt

@@ -1,6 +1,7 @@
 package sample._exception
 
 import deezer.kustomexport.KustomExport
+import kotlinx.coroutines.CancellationException
 
 @KustomExport
 class ExceptionBuilder {
@@ -20,6 +21,9 @@ class ExceptionBuilder {
     fun buildNumberFormatException(msg: String) = NumberFormatException(msg)
     fun buildRuntimeException(msg: String) = RuntimeException(msg)
     fun buildUnsupportedOperationException(msg: String) = UnsupportedOperationException(msg)
+
+    // Coroutines
+    fun buildCancellationException(msg: String) = CancellationException(msg)
 }
 
 @KustomExport
@@ -36,6 +40,8 @@ class ExceptionConsumer {
     fun consume(e: Exception): String {
         @Suppress("USELESS_IS_CHECK") // Cause typescript can go crazy
         return when (e) {
+            is CancellationException -> "CancellationException=${e.message}"
+
             is MyEx1 -> "MyEx1=${e.message}"
             is MyEx2 -> "MyEx2=${e.message}"
             is ArithmeticException -> "ArithmeticException=${e.message}"

samples/src/commonMain/kotlin/sample/_exception/ExceptionBuilder.ts

@@ -58,4 +58,6 @@ runTest("Exceptions", () : void => {
         Error, deezer.kustomexport.Exception, deezer.kustomexport.RuntimeException, deezer.kustomexport.NoSuchElementException)
     assertException(builder.buildArithmeticException("ae"), "ae",
         Error, deezer.kustomexport.Exception, deezer.kustomexport.RuntimeException, deezer.kustomexport.ArithmeticException)
+    assertException(builder.buildCancellationException("cancel"), "cancel",
+        Error, deezer.kustomexport.Exception, deezer.kustomexport.RuntimeException, deezer.kustomexport.IllegalStateException, deezer.kustomexport.CancellationException)
 })