From 996d6d8f74c563bdf6b251ef03ef5305e475774f Mon Sep 17 00:00:00 2001
From: Vasily Levchenko <vasily.levchenko@jetbrains.com>
Date: Tue, 7 Mar 2017 13:42:05 +0300
Subject: [PATCH] IR: vararg lowering processing delegation constructor call

---
 .../backend/konan/lower/VarargLowering.kt     | 22 ++++++++++++++-----
 1 file changed, 16 insertions(+), 6 deletions(-)

diff --git a/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/lower/VarargLowering.kt b/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/lower/VarargLowering.kt
index 5e11aed9155..f97645d036d 100644
--- a/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/lower/VarargLowering.kt
+++ b/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/lower/VarargLowering.kt
@@ -49,22 +49,32 @@ class VarargInjectionLowering internal constructor(val context: Context): Declar
     private fun lower(owner:DeclarationDescriptor, element: IrElement?) {
         element?.transformChildrenVoid(object: IrElementTransformerVoid() {
             val transformer = this
-            override fun visitCall(expression: IrCall): IrExpression {
+
+            private fun replaceEmptyParameterWithEmptyArray(expression: IrMemberAccessExpression) {
                 log("call of: ${expression.descriptor}")
                 context.createIrBuilder(owner, expression.startOffset, expression.endOffset).apply {
                     expression.descriptor.valueParameters.forEach {
                         log("varargElementType: ${it.varargElementType} expr: ${ir2string(expression.getValueArgument(it))}")
                     }
-                    expression.descriptor.valueParameters.filter{it.varargElementType != null && expression.getValueArgument(it) == null}.forEach {
+                    expression.descriptor.valueParameters.filter { it.varargElementType != null && expression.getValueArgument(it) == null }.forEach {
                         expression.putValueArgument(it.index,
-                            IrVarargImpl(startOffset       = startOffset,
-                                         endOffset         = endOffset,
-                                         type              = it.type,
-                                         varargElementType = it.varargElementType!!)
+                                IrVarargImpl(startOffset       = startOffset,
+                                             endOffset         = endOffset,
+                                             type              = it.type,
+                                             varargElementType = it.varargElementType!!)
                         )
                     }
                 }
                 expression.transformChildrenVoid(this)
+            }
+
+            override fun visitCall(expression: IrCall): IrExpression {
+                replaceEmptyParameterWithEmptyArray(expression)
+                return expression
+            }
+
+            override fun visitDelegatingConstructorCall(expression: IrDelegatingConstructorCall): IrExpression {
+                replaceEmptyParameterWithEmptyArray(expression)
                 return expression
             }