From 5937091556888c5df502896605a74085d158baa3 Mon Sep 17 00:00:00 2001
From: TonEnfer <tonik.sam@gmail.com>
Date: Mon, 9 Dec 2024 03:00:11 +0500
Subject: [PATCH] Fix build for Roslyn 4.0

---
 src/Riok.Mapperly/Descriptors/SymbolAccessor.cs | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/Riok.Mapperly/Descriptors/SymbolAccessor.cs b/src/Riok.Mapperly/Descriptors/SymbolAccessor.cs
index aeb7265584..87ae1de103 100644
--- a/src/Riok.Mapperly/Descriptors/SymbolAccessor.cs
+++ b/src/Riok.Mapperly/Descriptors/SymbolAccessor.cs
@@ -143,7 +143,10 @@ internal bool TryUpgradeNullable(ITypeSymbol symbol, [NotNullWhen(true)] out ITy
             case INamedTypeSymbol { TypeArguments.Length: > 0 } namedSymbol:
                 var upgradedTypeArguments = namedSymbol.TypeArguments.Select(UpgradeNullable).ToImmutableArray();
                 upgradedSymbol = namedSymbol
-                    .ConstructedFrom.Construct(upgradedTypeArguments, [.. upgradedTypeArguments.Select(ta => ta.NullableAnnotation)])
+                    .ConstructedFrom.Construct(
+                        upgradedTypeArguments,
+                        upgradedTypeArguments.Select(ta => ta.NullableAnnotation).ToImmutableArray()
+                    )
                     .WithNullableAnnotation(NullableAnnotation.Annotated);
                 break;