enable nullable annotations in the web project & related code (#837)

1 files changed, 7 insertions, 7 deletions

diff --git a/src/SMAPI.Web/Framework/Storage/UploadResult.cs b/src/SMAPI.Web/Framework/Storage/UploadResult.cs
index b1eedd59..92993d42 100644
--- a/src/SMAPI.Web/Framework/Storage/UploadResult.cs
+++ b/src/SMAPI.Web/Framework/Storage/UploadResult.cs
@@ -1,4 +1,4 @@
-#nullable disable
+using System.Diagnostics.CodeAnalysis;
 
 namespace StardewModdingAPI.Web.Framework.Storage
 {
@@ -9,25 +9,25 @@ namespace StardewModdingAPI.Web.Framework.Storage
         ** Accessors
         *********/
         /// <summary>Whether the file upload succeeded.</summary>
-        public bool Succeeded { get; }
+        [MemberNotNullWhen(true, nameof(UploadResult.ID))]
+        [MemberNotNullWhen(false, nameof(UploadResult.UploadError))]
+        public bool Succeeded => this.ID != null && this.UploadError == null;
 
         /// <summary>The file ID, if applicable.</summary>
-        public string ID { get; }
+        public string? ID { get; }
 
         /// <summary>The upload error, if any.</summary>
-        public string UploadError { get; }
+        public string? UploadError { get; }
 
 
         /*********
         ** Public methods
         *********/
         /// <summary>Construct an instance.</summary>
-        /// <param name="succeeded">Whether the file upload succeeded.</param>
         /// <param name="id">The file ID, if applicable.</param>
         /// <param name="uploadError">The upload error, if any.</param>
-        public UploadResult(bool succeeded, string id, string uploadError)
+        public UploadResult(string? id, string? uploadError)
         {
-            this.Succeeded = succeeded;
             this.ID = id;
             this.UploadError = uploadError;
         }