From 349a5deb35b3fa0ed031f23255e0fbf3c8c65788 Mon Sep 17 00:00:00 2001
From: Luis Leal <luisl@scarab.co.za>
Date: Thu, 23 Jan 2025 10:21:13 +0200
Subject: [PATCH] Convert EventArgsCacheGenerator to C# 7.3 compatible syntax

---
 ...ed.SourceGenerator.Internal.EventArgsCache.verified.cs | 8 ++++----
 .../EventArgsCacheGenerator.cs                            | 2 +-
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/src/PropertyChanged.SourceGenerator.UnitTests/AlsoNotifyTests.HandlesStandardNonPropertyNames_PropertyChanged.SourceGenerator.Internal.EventArgsCache.verified.cs b/src/PropertyChanged.SourceGenerator.UnitTests/AlsoNotifyTests.HandlesStandardNonPropertyNames_PropertyChanged.SourceGenerator.Internal.EventArgsCache.verified.cs
index 771fb96..d3411f5 100644
--- a/src/PropertyChanged.SourceGenerator.UnitTests/AlsoNotifyTests.HandlesStandardNonPropertyNames_PropertyChanged.SourceGenerator.Internal.EventArgsCache.verified.cs
+++ b/src/PropertyChanged.SourceGenerator.UnitTests/AlsoNotifyTests.HandlesStandardNonPropertyNames_PropertyChanged.SourceGenerator.Internal.EventArgsCache.verified.cs
@@ -3,12 +3,12 @@
     internal static class EventArgsCache
     {
         private static global::System.ComponentModel.PropertyChangedEventArgs _PropertyChanged_Null;
-        public static global::System.ComponentModel.PropertyChangedEventArgs PropertyChanged_Null => _PropertyChanged_Null ??= new global::System.ComponentModel.PropertyChangedEventArgs(null);
+        public static global::System.ComponentModel.PropertyChangedEventArgs PropertyChanged_Null => _PropertyChanged_Null = _PropertyChanged_Null ?? new global::System.ComponentModel.PropertyChangedEventArgs(null);
         private static global::System.ComponentModel.PropertyChangedEventArgs _PropertyChanged_Empty;
-        public static global::System.ComponentModel.PropertyChangedEventArgs PropertyChanged_Empty => _PropertyChanged_Empty ??= new global::System.ComponentModel.PropertyChangedEventArgs(@"");
+        public static global::System.ComponentModel.PropertyChangedEventArgs PropertyChanged_Empty => _PropertyChanged_Empty = _PropertyChanged_Empty ?? new global::System.ComponentModel.PropertyChangedEventArgs(@"");
         private static global::System.ComponentModel.PropertyChangedEventArgs _PropertyChanged_Foo;
-        public static global::System.ComponentModel.PropertyChangedEventArgs PropertyChanged_Foo => _PropertyChanged_Foo ??= new global::System.ComponentModel.PropertyChangedEventArgs(@"Foo");
+        public static global::System.ComponentModel.PropertyChangedEventArgs PropertyChanged_Foo => _PropertyChanged_Foo = _PropertyChanged_Foo ?? new global::System.ComponentModel.PropertyChangedEventArgs(@"Foo");
         private static global::System.ComponentModel.PropertyChangedEventArgs _PropertyChanged_Item;
-        public static global::System.ComponentModel.PropertyChangedEventArgs PropertyChanged_Item => _PropertyChanged_Item ??= new global::System.ComponentModel.PropertyChangedEventArgs(@"Item[]");
+        public static global::System.ComponentModel.PropertyChangedEventArgs PropertyChanged_Item => _PropertyChanged_Item = _PropertyChanged_Item ?? new global::System.ComponentModel.PropertyChangedEventArgs(@"Item[]");
     }
 }
\ No newline at end of file
diff --git a/src/PropertyChanged.SourceGenerator/EventArgsCacheGenerator.cs b/src/PropertyChanged.SourceGenerator/EventArgsCacheGenerator.cs
index 018bcfd..e415d4d 100644
--- a/src/PropertyChanged.SourceGenerator/EventArgsCacheGenerator.cs
+++ b/src/PropertyChanged.SourceGenerator/EventArgsCacheGenerator.cs
@@ -39,7 +39,7 @@ public void GenerateNameCache()
             }
             this.writer.WriteLine($"private static {eventArgsTypeName} {backingFieldName};");
             this.writer.WriteLine($"public static {eventArgsTypeName} {cacheName} => " +
-                $"{backingFieldName} ??= new {eventArgsTypeName}({EscapeString(propertyName)});");
+                $"{backingFieldName} = {backingFieldName} ?? new {eventArgsTypeName}({EscapeString(propertyName)});");
         }
 
         this.writer.Indent--;