From e763e715154df90e706136ea060b06febcef4739 Mon Sep 17 00:00:00 2001
From: Ilya Kirillov <ilya.kirillov@jetbrains.com>
Date: Thu, 17 Aug 2023 16:11:05 +0200
Subject: [PATCH] [FIR] optimize ConeTypeProjection[] RAM usage for empty
 arrays

On the snapshot from ^KTIJ-26260 empty ConeTypeProjection arrays take about 10mb
---
 .../fir/cones/src/org/jetbrains/kotlin/fir/types/impl/Impl.kt | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/compiler/fir/cones/src/org/jetbrains/kotlin/fir/types/impl/Impl.kt b/compiler/fir/cones/src/org/jetbrains/kotlin/fir/types/impl/Impl.kt
index c284a417324..f02a92fe243 100644
--- a/compiler/fir/cones/src/org/jetbrains/kotlin/fir/types/impl/Impl.kt
+++ b/compiler/fir/cones/src/org/jetbrains/kotlin/fir/types/impl/Impl.kt
@@ -14,10 +14,12 @@ import org.jetbrains.kotlin.util.WeakPair
 
 class ConeClassLikeTypeImpl(
     override val lookupTag: ConeClassLikeLookupTag,
-    override val typeArguments: Array<out ConeTypeProjection>,
+    typeArguments: Array<out ConeTypeProjection>,
     isNullable: Boolean,
     override val attributes: ConeAttributes = ConeAttributes.Empty
 ) : ConeClassLikeType() {
+    override val typeArguments = if (typeArguments.isEmpty()) EMPTY_ARRAY else typeArguments
+
     override val nullability: ConeNullability = ConeNullability.create(isNullable)
 
     // Cached expanded type and the relevant session