Native. Avoid annotation using

Author: turansky

seskar/seskar-compiler-plugin/src/main/kotlin/seskar/compiler/native/backend/JsNative.kt

@@ -1,30 +1,37 @@
 package seskar.compiler.native.backend
 
 import org.jetbrains.kotlin.ir.declarations.IrFunction
-import org.jetbrains.kotlin.ir.util.hasAnnotation
+import org.jetbrains.kotlin.ir.declarations.IrSimpleFunction
 import org.jetbrains.kotlin.name.ClassId
 import org.jetbrains.kotlin.name.FqName
 import org.jetbrains.kotlin.name.Name
+import org.jetbrains.kotlin.util.OperatorNameConventions.GET
+import org.jetbrains.kotlin.util.OperatorNameConventions.INVOKE
+import org.jetbrains.kotlin.util.OperatorNameConventions.SET
 
-private class Mapper(
-    className: String
-) {
-    val marker = FqName("seskar.js.$className")
-
-    val annotation = ClassId(
+private fun nativeAnnotation(
+    className: String,
+): ClassId =
+    ClassId(
         FqName("seskar.js.internal"),
         Name.identifier("${className}Internal"),
     )
-}
 
-private val MAPPERS = listOf(
-    Mapper("JsNativeGetter"),
-    Mapper("JsNativeSetter"),
-    Mapper("JsNativeInvoke"),
+private val ANNOTATION_MAP = mapOf(
+    GET to nativeAnnotation("JsNativeGetter"),
+    SET to nativeAnnotation("JsNativeSetter"),
+    INVOKE to nativeAnnotation("JsNativeInvoke"),
 )
 
-internal fun IrFunction.nativeAnnotation(): ClassId? =
-    MAPPERS.asSequence()
-        .filter { hasAnnotation(it.marker) }
-        .map { it.annotation }
-        .firstOrNull()
+internal fun IrFunction.nativeAnnotation(): ClassId? {
+    if (!isExternal)
+        return null
+
+    if (this !is IrSimpleFunction)
+        return null
+
+    if (!isOperator)
+        return null
+
+    return ANNOTATION_MAP[name]
+}

tests/native/src/commonMain/kotlin/com/test/example/MyHandler.kt

@@ -1,8 +1,5 @@
 package com.test.example
 
-import seskar.js.JsNativeInvoke
-
 sealed external interface MyHandler {
-    @JsNativeInvoke
     operator fun invoke(x: Int, y: Int): Int
 }

tests/native/src/commonMain/kotlin/com/test/example/MyRecord.kt

@@ -1,15 +1,10 @@
 package com.test.example
 
-import seskar.js.JsNativeGetter
-import seskar.js.JsNativeSetter
-
 sealed external interface MyRecord {
-    @JsNativeGetter
     operator fun get(
         key: String,
     ): Int
 
-    @JsNativeSetter
     operator fun set(
         key: String,
         value: Int,