rickclephas · rickclephas · Nov 29, 2025 · Dec 3, 2025 · Dec 6, 2025 · Dec 6, 2025
diff --git a/SWIFT_EXPORT.md b/SWIFT_EXPORT.md
@@ -31,18 +31,6 @@ For now the plugin just clones your original functions and properties to prevent
 **Temporary workaround:**  
 You should disable any relevant code in Swift if you would like to try Swift export.
 
-## 🚨 `@Throws` suspend functions are unsupported
-
-Throwing suspend functions aren't supported yet.
-
-KMP-NativeCoroutines behaves as if a `@Throws(Exception::class)` annotation was added to all suspend functions.
-Since throwing suspend functions aren't supported yet, any exception will currently cause a fatal crash.
-
-## 🚨 Cancellation isn't supported yet
-
-At the moment you can't cancel suspend functions.  
-Meaning your suspend functions will keep running until they either complete or fail.
-
 ## ⚠️ `@ObjCName` is ignored
 
 The `@ObjCName` annotation is (currently) ignored by Swift export.  

diff --git a/build.gradle.kts b/build.gradle.kts
@@ -13,7 +13,7 @@ buildscript {
 
 allprojects {
     group = "com.rickclephas.kmp"
-    version = "1.0.0"
+    version = "1.0.0-kotlin-2.3.20-Beta1"
 }
 
 apiValidation {

diff --git a/kmp-nativecoroutines-compiler-embeddable/api/kmp-nativecoroutines-compiler-embeddable.api b/kmp-nativecoroutines-compiler-embeddable/api/kmp-nativecoroutines-compiler-embeddable.api
@@ -106,6 +106,7 @@ public final class com/rickclephas/kmp/nativecoroutines/compiler/config/Suffixes
 public final class com/rickclephas/kmp/nativecoroutines/compiler/config/SwiftExport : java/lang/Enum {
 	public static final field NO_FUNC_RETURN_TYPES Lcom/rickclephas/kmp/nativecoroutines/compiler/config/SwiftExport;
 	public static final field NO_THROWS_SUSPEND_FUNC Lcom/rickclephas/kmp/nativecoroutines/compiler/config/SwiftExport;
+	public static final field SUSPEND_FUNC_SUPPORTED Lcom/rickclephas/kmp/nativecoroutines/compiler/config/SwiftExport;
 	public static fun getEntries ()Lkotlin/enums/EnumEntries;
 	public static fun valueOf (Ljava/lang/String;)Lcom/rickclephas/kmp/nativecoroutines/compiler/config/SwiftExport;
 	public static fun values ()[Lcom/rickclephas/kmp/nativecoroutines/compiler/config/SwiftExport;

diff --git a/kmp-nativecoroutines-compiler/api/kmp-nativecoroutines-compiler.api b/kmp-nativecoroutines-compiler/api/kmp-nativecoroutines-compiler.api
@@ -106,6 +106,7 @@ public final class com/rickclephas/kmp/nativecoroutines/compiler/config/Suffixes
 public final class com/rickclephas/kmp/nativecoroutines/compiler/config/SwiftExport : java/lang/Enum {
 	public static final field NO_FUNC_RETURN_TYPES Lcom/rickclephas/kmp/nativecoroutines/compiler/config/SwiftExport;
 	public static final field NO_THROWS_SUSPEND_FUNC Lcom/rickclephas/kmp/nativecoroutines/compiler/config/SwiftExport;
+	public static final field SUSPEND_FUNC_SUPPORTED Lcom/rickclephas/kmp/nativecoroutines/compiler/config/SwiftExport;
 	public static fun getEntries ()Lkotlin/enums/EnumEntries;
 	public static fun valueOf (Ljava/lang/String;)Lcom/rickclephas/kmp/nativecoroutines/compiler/config/SwiftExport;
 	public static fun values ()[Lcom/rickclephas/kmp/nativecoroutines/compiler/config/SwiftExport;

diff --git a/...piler/src/main/kotlin/com/rickclephas/kmp/nativecoroutines/compiler/config/SwiftExport.kt b/...piler/src/main/kotlin/com/rickclephas/kmp/nativecoroutines/compiler/config/SwiftExport.kt
@@ -5,6 +5,7 @@ import org.jetbrains.kotlin.utils.filterToSetOrEmpty
 public enum class SwiftExport {
     NO_FUNC_RETURN_TYPES,
     NO_THROWS_SUSPEND_FUNC,
+    SUSPEND_FUNC_SUPPORTED,
 }
 
 public val SWIFT_EXPORT: ConfigOptionWithDefault<Set<SwiftExport>> =

diff --git a/...c/main/kotlin/com/rickclephas/kmp/nativecoroutines/compiler/fir/codegen/NativeFunction.kt b/...c/main/kotlin/com/rickclephas/kmp/nativecoroutines/compiler/fir/codegen/NativeFunction.kt
@@ -42,7 +42,7 @@ internal fun FirExtension.buildNativeFunction(
 
         status = originalSymbol.getGeneratedDeclarationStatus(session)
             ?.copy(isInline = originalSymbol.isInline) ?: return null
-        if (SwiftExport.NO_FUNC_RETURN_TYPES in swiftExport) {
+        if (SwiftExport.NO_FUNC_RETURN_TYPES in swiftExport || SwiftExport.SUSPEND_FUNC_SUPPORTED in swiftExport) {
             status = status.copy(isSuspend = callableSignature.isSuspend)
         }
         isLocal = originalSymbol.isLocal
@@ -85,7 +85,7 @@ internal fun FirExtension.buildNativeFunction(
         if (annotation.shouldRefineInSwift) {
             annotations.add(buildAnnotation(ClassIds.shouldRefineInSwift))
         }
-        if (SwiftExport.NO_FUNC_RETURN_TYPES in swiftExport &&
+        if ((SwiftExport.NO_FUNC_RETURN_TYPES in swiftExport || SwiftExport.SUSPEND_FUNC_SUPPORTED in swiftExport) &&
             SwiftExport.NO_THROWS_SUSPEND_FUNC !in swiftExport &&
             callableSignature.isSuspend
         ) {

diff --git a/...in/kotlin/com/rickclephas/kmp/nativecoroutines/compiler/fir/utils/NativeConeKotlinType.kt b/...in/kotlin/com/rickclephas/kmp/nativecoroutines/compiler/fir/utils/NativeConeKotlinType.kt
@@ -18,7 +18,7 @@ internal fun FirCallableSignature.getNativeType(
             val typeArgs = arrayOf<ConeTypeProjection>(getRawType(type.valueType))
             nativeType = ClassIds.nativeFlow.constructClassLikeType(typeArgs, type.isNullable)
         }
-        if (isSuspend) {
+        if (isSuspend && SwiftExport.SUSPEND_FUNC_SUPPORTED !in swiftExport) {
             val typeArgs = arrayOf<ConeTypeProjection>(nativeType)
             nativeType = ClassIds.nativeSuspend.constructClassLikeType(typeArgs)
         }

diff --git a/...rc/main/kotlin/com/rickclephas/kmp/nativecoroutines/compiler/ir/codegen/NativeFunction.kt b/...rc/main/kotlin/com/rickclephas/kmp/nativecoroutines/compiler/ir/codegen/NativeFunction.kt
@@ -25,7 +25,7 @@ internal fun GeneratorContext.buildNativeFunctionBody(
         if (callableSignature.returnType is CallableSignature.Type.Flow) {
             expression = irCallAsNativeFlow(expression, coroutineScope)
         }
-        if (callableSignature.isSuspend) {
+        if (callableSignature.isSuspend && SwiftExport.SUSPEND_FUNC_SUPPORTED !in swiftExport) {
             expression = irCallNativeSuspend(expression, coroutineScope)
         }
     }

diff --git a/...m/rickclephas/kmp/nativecoroutines/compiler/runners/FirLightTreeCodegenTestGenerated.java b/...m/rickclephas/kmp/nativecoroutines/compiler/runners/FirLightTreeCodegenTestGenerated.java
@@ -130,4 +130,44 @@ public void testViewmodelscope() {
       runTest("src/testData/codegen/swift3/viewmodelscope.kt");
     }
   }
+
+  @Nested
+  @TestMetadata("src/testData/codegen/swift5")
+  @TestDataPath("$PROJECT_ROOT")
+  public class Swift5 {
+    @Test
+    public void testAllFilesPresentInSwift5() {
+      KtTestUtil.assertAllTestsPresentByMetadataWithExcluded(this.getClass(), new File("src/testData/codegen/swift5"), Pattern.compile("^(.+)\\.kt$"), Pattern.compile("^(.+)\\.fir\\.kt$"), true);
+    }
+
+    @Test
+    @TestMetadata("annotations.kt")
+    public void testAnnotations() {
+      runTest("src/testData/codegen/swift5/annotations.kt");
+    }
+
+    @Test
+    @TestMetadata("coroutinescope.kt")
+    public void testCoroutinescope() {
+      runTest("src/testData/codegen/swift5/coroutinescope.kt");
+    }
+
+    @Test
+    @TestMetadata("functions.kt")
+    public void testFunctions() {
+      runTest("src/testData/codegen/swift5/functions.kt");
+    }
+
+    @Test
+    @TestMetadata("properties.kt")
+    public void testProperties() {
+      runTest("src/testData/codegen/swift5/properties.kt");
+    }
+
+    @Test
+    @TestMetadata("viewmodelscope.kt")
+    public void testViewmodelscope() {
+      runTest("src/testData/codegen/swift5/viewmodelscope.kt");
+    }
+  }
 }
diff --git a/...ted/com/rickclephas/kmp/nativecoroutines/compiler/runners/FirPsiCodegenTestGenerated.java b/...ted/com/rickclephas/kmp/nativecoroutines/compiler/runners/FirPsiCodegenTestGenerated.java
@@ -130,4 +130,44 @@ public void testViewmodelscope() {
       runTest("src/testData/codegen/swift3/viewmodelscope.kt");
     }
   }
+
+  @Nested
+  @TestMetadata("src/testData/codegen/swift5")
+  @TestDataPath("$PROJECT_ROOT")
+  public class Swift5 {
+    @Test
+    public void testAllFilesPresentInSwift5() {
+      KtTestUtil.assertAllTestsPresentByMetadataWithExcluded(this.getClass(), new File("src/testData/codegen/swift5"), Pattern.compile("^(.+)\\.kt$"), Pattern.compile("^(.+)\\.fir\\.kt$"), true);
+    }
+
+    @Test
+    @TestMetadata("annotations.kt")
+    public void testAnnotations() {
+      runTest("src/testData/codegen/swift5/annotations.kt");
+    }
+
+    @Test
+    @TestMetadata("coroutinescope.kt")
+    public void testCoroutinescope() {
+      runTest("src/testData/codegen/swift5/coroutinescope.kt");
+    }
+
+    @Test
+    @TestMetadata("functions.kt")
+    public void testFunctions() {
+      runTest("src/testData/codegen/swift5/functions.kt");
+    }
+
+    @Test
+    @TestMetadata("properties.kt")
+    public void testProperties() {
+      runTest("src/testData/codegen/swift5/properties.kt");
+    }
+
+    @Test
+    @TestMetadata("viewmodelscope.kt")
+    public void testViewmodelscope() {
+      runTest("src/testData/codegen/swift5/viewmodelscope.kt");
+    }
+  }
 }
diff --git a/...otlin/com/rickclephas/kmp/nativecoroutines/compiler/runners/AbstractFirBaseCodegenTest.kt b/...otlin/com/rickclephas/kmp/nativecoroutines/compiler/runners/AbstractFirBaseCodegenTest.kt
@@ -81,8 +81,9 @@ abstract class AbstractFirBaseCodegenTest(
             KmpNativeCoroutinesDirectives.STATE_FLOW_SUFFIX with "Flow"
         }
         listOf<Long>(
-            0b01, // Kotlin 2.2.21
-            0b11, // Kotlin 2.3.0
+            0b001, // Kotlin 2.2.21
+            0b011, // Kotlin 2.3.0
+            0b101, // Kotlin 2.3.20
         ).forEach { version ->
             forTestsMatching("swift$version/*") {
                 defaultDirectives {

diff --git a/kmp-nativecoroutines-compiler/src/testData/codegen/swift5/annotations.box.txt b/kmp-nativecoroutines-compiler/src/testData/codegen/swift5/annotations.box.txt
@@ -0,0 +1 @@
+../annotations.box.txt