diff --git a/library/src/commonMain/kotlin/net/sergeych/lyng/Compiler.kt b/library/src/commonMain/kotlin/net/sergeych/lyng/Compiler.kt
index 163987d..0cca6d9 100644
--- a/library/src/commonMain/kotlin/net/sergeych/lyng/Compiler.kt
+++ b/library/src/commonMain/kotlin/net/sergeych/lyng/Compiler.kt
@@ -402,7 +402,9 @@ class Compiler(
     }
 
     enum class AccessType(val isMutable: Boolean) {
-        Val(false), Var(true), Initialization(false)
+        Val(false), Var(true),
+        @Suppress("unused")
+        Initialization(false)
     }
 
     enum class Visibility {
@@ -728,8 +730,8 @@ class Compiler(
         val className = nameToken.value
         lateinit var classContext: Context
 
-        val defaultAccess = if (isStruct) AccessType.Var else AccessType.Initialization
-        val defaultVisibility = Visibility.Public
+        @Suppress("UNUSED_VARIABLE") val defaultAccess = if (isStruct) AccessType.Var else AccessType.Initialization
+        @Suppress("UNUSED_VARIABLE") val defaultVisibility = Visibility.Public
 
         // create instance constructor
         // create custom objClass with all fields and instance constructor
@@ -741,14 +743,11 @@ class Compiler(
 
             // the context now is a "class creation context", we must use its args to initialize
             // fields. Note that 'this' is already set by class
-            constructorArgsDeclaration?.let { cad ->
-                cad.assignToContext(this)
-                // note that accessors are created in ObjClass instance, not during instance
-                // initialization (not here)
-            }
+            constructorArgsDeclaration?.assignToContext(this)
             bodyInit?.execute(this)
             // export public
             for( (name,record) in objects ) {
+                println("-- $name $record")
                 when(record.visibility) {
                     Visibility.Public -> {
                         thisObj.publicFields += name
diff --git a/library/src/commonMain/kotlin/net/sergeych/lyng/Obj.kt b/library/src/commonMain/kotlin/net/sergeych/lyng/Obj.kt
index 08a3851..a32a02b 100644
--- a/library/src/commonMain/kotlin/net/sergeych/lyng/Obj.kt
+++ b/library/src/commonMain/kotlin/net/sergeych/lyng/Obj.kt
@@ -69,7 +69,7 @@ open class Obj {
         args: Arguments = Arguments.EMPTY
     ): T = invokeInstanceMethod(context, name, args) as T
 
-    suspend fun invokeInstanceMethod(
+    open suspend fun invokeInstanceMethod(
         context: Context,
         name: String,
         args: Arguments = Arguments.EMPTY
diff --git a/library/src/commonMain/kotlin/net/sergeych/lyng/ObjClass.kt b/library/src/commonMain/kotlin/net/sergeych/lyng/ObjClass.kt
index 311c172..f079535 100644
--- a/library/src/commonMain/kotlin/net/sergeych/lyng/ObjClass.kt
+++ b/library/src/commonMain/kotlin/net/sergeych/lyng/ObjClass.kt
@@ -151,25 +151,3 @@ val ObjArray by lazy {
     }
 }
 
-class ObjInstance(override val objClass: ObjClass) : Obj() {
-
-    internal val publicFields = mutableSetOf<String>()
-    internal val protectedFields = mutableSetOf<String>()
-
-    internal lateinit var instanceContext: Context
-
-    override suspend fun readField(context: Context, name: String): ObjRecord {
-        return if( name in publicFields ) instanceContext[name]!!
-        else super.readField(context, name)
-    }
-
-    override suspend fun writeField(context: Context, name: String, newValue: Obj) {
-        if( name in publicFields ) {
-            val f = instanceContext[name]!!
-            if( !f.isMutable ) ObjIllegalAssignmentError(context, "can't reassign val $name").raise()
-            if( f.value.assign(context, newValue) == null)
-                f.value = newValue
-        }
-        else super.writeField(context, name, newValue)
-    }
-}
diff --git a/library/src/commonMain/kotlin/net/sergeych/lyng/ObjInstance.kt b/library/src/commonMain/kotlin/net/sergeych/lyng/ObjInstance.kt
new file mode 100644
index 0000000..6b59711
--- /dev/null
+++ b/library/src/commonMain/kotlin/net/sergeych/lyng/ObjInstance.kt
@@ -0,0 +1,29 @@
+package net.sergeych.lyng
+
+class ObjInstance(override val objClass: ObjClass) : Obj() {
+
+    internal val publicFields = mutableSetOf<String>()
+    internal val protectedFields = mutableSetOf<String>()
+
+    internal lateinit var instanceContext: Context
+
+    override suspend fun readField(context: Context, name: String): ObjRecord {
+        return if( name in publicFields ) instanceContext[name]!!
+        else super.readField(context, name)
+    }
+
+    override suspend fun writeField(context: Context, name: String, newValue: Obj) {
+        if( name in publicFields ) {
+            val f = instanceContext[name]!!
+            if( !f.isMutable ) ObjIllegalAssignmentError(context, "can't reassign val $name").raise()
+            if( f.value.assign(context, newValue) == null)
+                f.value = newValue
+        }
+        else super.writeField(context, name, newValue)
+    }
+
+    override suspend fun invokeInstanceMethod(context: Context, name: String, args: Arguments): Obj {
+        if( name in publicFields ) return instanceContext[name]!!.value.invoke(context, this, args)
+        return super.invokeInstanceMethod(context, name, args)
+    }
+}
\ No newline at end of file
diff --git a/library/src/commonTest/kotlin/ScriptTest.kt b/library/src/commonTest/kotlin/ScriptTest.kt
index 24ca0d8..689a3ac 100644
--- a/library/src/commonTest/kotlin/ScriptTest.kt
+++ b/library/src/commonTest/kotlin/ScriptTest.kt
@@ -1435,4 +1435,22 @@ class ScriptTest {
             assert( p.length == 5 )
             """.trimIndent())
     }
+
+    @Test
+    fun testStructBodyFun() = runTest {
+        val c = Context()
+        c.eval("""
+            struct Point(x,y) {
+                fun length() { 
+                    sqrt(x*x+y*y) 
+                }
+                var foo = "zero"
+            }
+            val p = Point(3,4)
+            assertEquals(5, p.length())
+            p.y = 10
+            println(p.length())
+            assertEquals(sqrt(109), p.length())
+            """.trimIndent())
+    }
 }
\ No newline at end of file