From 7e9fc54e64c83c7e621cd2b664417f3189b1b1e2 Mon Sep 17 00:00:00 2001
From: Svyatoslav Kuzmich <svyatoslav.kuzmich@jetbrains.com>
Date: Thu, 11 Nov 2021 17:06:53 +0300
Subject: [PATCH] [Wasm] Support external companions

---
 .../ComplexExternalDeclarationsToTopLevelFunctionsLowering.kt | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/compiler/ir/backend.wasm/src/org/jetbrains/kotlin/backend/wasm/lower/ComplexExternalDeclarationsToTopLevelFunctionsLowering.kt b/compiler/ir/backend.wasm/src/org/jetbrains/kotlin/backend/wasm/lower/ComplexExternalDeclarationsToTopLevelFunctionsLowering.kt
index bed26587b12..3622caf4d40 100644
--- a/compiler/ir/backend.wasm/src/org/jetbrains/kotlin/backend/wasm/lower/ComplexExternalDeclarationsToTopLevelFunctionsLowering.kt
+++ b/compiler/ir/backend.wasm/src/org/jetbrains/kotlin/backend/wasm/lower/ComplexExternalDeclarationsToTopLevelFunctionsLowering.kt
@@ -148,6 +148,10 @@ class ComplexExternalDeclarationsToTopLevelFunctionsLowering(val context: WasmBa
         val parent = klass.parent
         if (parent is IrClass) {
             appendExternalClassReference(parent)
+            if (klass.isCompanion) {
+                // Reference to external companion object is reference to its parent class
+                return
+            }
             append('.')
         }
         append(klass.getJsNameOrKotlinName())