From 6255f2bd77c8a5ec08a09fdefdd815d6e98d13ff Mon Sep 17 00:00:00 2001
From: Shagen Ogandzhanian <shagen.ogandzhanian@jetbrains.com>
Date: Sat, 9 Jan 2021 20:54:20 +0100
Subject: [PATCH] Simplify JsInvocation in case we not it's Array

^KT-40689 fixed
---
 .../js/transformers/irToJs/jsAstUtils.kt      | 19 +++++++++++++------
 1 file changed, 13 insertions(+), 6 deletions(-)

diff --git a/compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/transformers/irToJs/jsAstUtils.kt b/compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/transformers/irToJs/jsAstUtils.kt
index 1822b4c52d5..b97761fdf2d 100644
--- a/compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/transformers/irToJs/jsAstUtils.kt
+++ b/compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/transformers/irToJs/jsAstUtils.kt
@@ -171,13 +171,20 @@ fun translateCall(
                 JsBlock(
                     JsVars(JsVars.JsVar(receiverName, jsDispatchReceiver)),
                     JsReturn(
-                        JsInvocation(
-                            JsNameRef("apply", JsNameRef(symbolName, receiverRef)),
-                            listOf(
-                                receiverRef,
-                                argumentsAsSingleArray
+                        if (argumentsAsSingleArray is JsArrayLiteral) {
+                            JsInvocation(
+                                JsNameRef(symbolName, receiverRef),
+                                argumentsAsSingleArray.expressions
                             )
-                        )
+                        } else {
+                            JsInvocation(
+                                JsNameRef("apply", JsNameRef(symbolName, receiverRef)),
+                                listOf(
+                                    receiverRef,
+                                    argumentsAsSingleArray
+                                )
+                            )
+                        }
                     )
                 ),
                 "VarargIIFE"