From 8a645e9c0a3028fed84f928b7ae7e88d09848d7d Mon Sep 17 00:00:00 2001
From: Zalim Bashorov <zalim.bashorov@jetbrains.com>
Date: Wed, 19 Jul 2023 20:44:09 +0200
Subject: [PATCH] [Wasm] Don't print recursion group in wat when it's empty

---
 .../kotlin/wasm/ir/convertors/WasmIrToText.kt | 22 +++++++++++--------
 1 file changed, 13 insertions(+), 9 deletions(-)

diff --git a/wasm/wasm.ir/src/org/jetbrains/kotlin/wasm/ir/convertors/WasmIrToText.kt b/wasm/wasm.ir/src/org/jetbrains/kotlin/wasm/ir/convertors/WasmIrToText.kt
index 4ad6e8e8978..1f5b0ebd92d 100644
--- a/wasm/wasm.ir/src/org/jetbrains/kotlin/wasm/ir/convertors/WasmIrToText.kt
+++ b/wasm/wasm.ir/src/org/jetbrains/kotlin/wasm/ir/convertors/WasmIrToText.kt
@@ -228,18 +228,22 @@ class WasmIrToText : SExpressionBuilder() {
         with(module) {
             newLineList("module") {
                 functionTypes.forEach { appendFunctionTypeDeclaration(it) }
-                newLineList("rec") {
-                    recGroupTypes.forEach {
-                        when (it) {
-                            is WasmStructDeclaration ->
-                                appendStructTypeDeclaration(it)
-                            is WasmArrayDeclaration ->
-                                appendArrayTypeDeclaration(it)
-                            is WasmFunctionType ->
-                                appendFunctionTypeDeclaration(it)
+
+                if(recGroupTypes.isNotEmpty()) {
+                    newLineList("rec") {
+                        recGroupTypes.forEach {
+                            when (it) {
+                                is WasmStructDeclaration ->
+                                    appendStructTypeDeclaration(it)
+                                is WasmArrayDeclaration ->
+                                    appendArrayTypeDeclaration(it)
+                                is WasmFunctionType ->
+                                    appendFunctionTypeDeclaration(it)
+                            }
                         }
                     }
                 }
+
                 importsInOrder.forEach {
                     when (it) {
                         is WasmFunction.Imported -> appendImportedFunction(it)