[ObjCExport] Add suspend function and @Throws tests

KT-66115, KT-66239

native/objcexport-header-generator/impl/analysis-api/src/org/jetbrains/kotlin/objcexport/analysisApiUtils/hasThrowsAnnotation.kt

@@ -4,7 +4,23 @@ import org.jetbrains.kotlin.analysis.api.symbols.KtCallableSymbol
 import org.jetbrains.kotlin.backend.konan.KonanFqNames
 import org.jetbrains.kotlin.name.ClassId
 
-
+/**
+ * Returns if this callable has [Throws] annotation.
+ * Super callables aren't included.
+ *
+ * ```kotlin
+ * class A {
+ *   @Throws
+ *   fun foo()
+ * }
+ * class B: A() {
+ *   override fun foo()
+ * }
+ *
+ * A.foo.hasThrowsAnnotation = true
+ * B.foo.hasThrowsAnnotation = false
+ * ```
+ */
 internal val KtCallableSymbol.hasThrowsAnnotation: Boolean
     get() {
         return annotationsList.hasAnnotation(ClassId.topLevel(KonanFqNames.throws))

native/objcexport-header-generator/impl/analysis-api/src/org/jetbrains/kotlin/objcexport/analysisApiUtils/isThrowable.kt

@@ -2,9 +2,6 @@ package org.jetbrains.kotlin.objcexport.analysisApiUtils
 
 import org.jetbrains.kotlin.analysis.api.KtAnalysisSession
 import org.jetbrains.kotlin.analysis.api.symbols.KtClassOrObjectSymbol
-import org.jetbrains.kotlin.backend.konan.objcexport.ObjCClassType
-import org.jetbrains.kotlin.backend.konan.objcexport.ObjCMethod
-import org.jetbrains.kotlin.backend.konan.objcexport.swiftNameAttribute
 import org.jetbrains.kotlin.builtins.StandardNames
 import org.jetbrains.kotlin.name.ClassId
 
@@ -19,16 +16,4 @@ context(KtAnalysisSession)
 internal val ClassId.isThrowable: Boolean
     get() {
         return StandardNames.FqNames.throwable == this.asSingleFqName()
-    }
-
-internal fun buildThrowableAsErrorMethod(): ObjCMethod {
-    return ObjCMethod(
-        comment = null,
-        isInstanceMethod = true,
-        returnType = ObjCClassType("NSError"),
-        selectors = listOf("asError"),
-        parameters = emptyList(),
-        attributes = listOf(swiftNameAttribute("asError()")),
-        origin = null
-    )
-}
+    }

native/objcexport-header-generator/impl/analysis-api/src/org/jetbrains/kotlin/objcexport/buildThrowableAsErrorMethod.kt

@@ -0,0 +1,20 @@
+package org.jetbrains.kotlin.objcexport
+
+import org.jetbrains.kotlin.backend.konan.objcexport.ObjCClassType
+import org.jetbrains.kotlin.backend.konan.objcexport.ObjCMethod
+import org.jetbrains.kotlin.backend.konan.objcexport.swiftNameAttribute
+
+/**
+ * See K1: [org.jetbrains.kotlin.backend.konan.objcexport.ObjCExportTranslatorImpl.buildThrowableAsErrorMethod]
+ */
+internal fun buildThrowableAsErrorMethod(): ObjCMethod {
+    return ObjCMethod(
+        comment = null,
+        isInstanceMethod = true,
+        returnType = ObjCClassType("NSError"),
+        selectors = listOf("asError"),
+        parameters = emptyList(),
+        attributes = listOf(swiftNameAttribute("asError()")),
+        origin = null
+    )
+}

native/objcexport-header-generator/impl/analysis-api/src/org/jetbrains/kotlin/objcexport/translateToObjCClass.kt

@@ -6,8 +6,6 @@ import org.jetbrains.kotlin.analysis.api.symbols.markers.KtSymbolWithModality
 import org.jetbrains.kotlin.analysis.api.types.KtNonErrorClassType
 import org.jetbrains.kotlin.backend.konan.objcexport.*
 import org.jetbrains.kotlin.descriptors.Modality
-import org.jetbrains.kotlin.name.StandardClassIds
-import org.jetbrains.kotlin.objcexport.analysisApiUtils.buildThrowableAsErrorMethod
 import org.jetbrains.kotlin.objcexport.analysisApiUtils.isThrowable
 import org.jetbrains.kotlin.objcexport.analysisApiUtils.isVisibleInObjC
 

native/objcexport-header-generator/impl/analysis-api/test/org/jetbrains/kotlin/objcexport/tests/IsThrowableTest.kt

@@ -0,0 +1,46 @@
+/*
+ * Copyright 2010-2024 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+package org.jetbrains.kotlin.objcexport.tests
+
+import org.jetbrains.kotlin.analysis.api.analyze
+import org.jetbrains.kotlin.objcexport.analysisApiUtils.isThrowable
+import org.jetbrains.kotlin.objcexport.testUtils.InlineSourceCodeAnalysis
+import org.jetbrains.kotlin.objcexport.testUtils.getClassOrFail
+import org.jetbrains.kotlin.objcexport.testUtils.getPropertyOrFail
+import org.junit.jupiter.api.Test
+import kotlin.test.assertFalse
+import kotlin.test.assertTrue
+
+class IsThrowableTest(
+    private val inlineSourceCodeAnalysis: InlineSourceCodeAnalysis,
+) {
+    @Test
+    fun `test - fake throwable`() {
+        val file = inlineSourceCodeAnalysis.createKtFile(
+            """
+            class Throwable
+        """.trimIndent()
+        )
+
+        analyze(file) {
+            assertFalse(file.getClassOrFail("Throwable").isThrowable)
+        }
+    }
+
+    @Test
+    fun `test - true throwable`() {
+        val file = inlineSourceCodeAnalysis.createKtFile(
+            """
+            var foo: Throwable? = null
+        """.trimIndent()
+        )
+
+        analyze(file) {
+            val isThrowable = file.getPropertyOrFail("foo").returnType.expandedClassSymbol?.isThrowable ?: false
+            assertTrue(isThrowable)
+        }
+    }
+}