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-rw-r--r--src/SMAPI.Toolkit/Serialization/Models/Manifest.cs2
-rw-r--r--src/SMAPI.Toolkit/Serialization/Models/ManifestContentPackFor.cs2
-rw-r--r--src/SMAPI.Toolkit/Serialization/Models/ManifestDependency.cs2
3 files changed, 6 insertions, 0 deletions
diff --git a/src/SMAPI.Toolkit/Serialization/Models/Manifest.cs b/src/SMAPI.Toolkit/Serialization/Models/Manifest.cs
index 3ab5edfb..01010602 100644
--- a/src/SMAPI.Toolkit/Serialization/Models/Manifest.cs
+++ b/src/SMAPI.Toolkit/Serialization/Models/Manifest.cs
@@ -115,7 +115,9 @@ namespace StardewModdingAPI.Toolkit.Serialization.Models
*********/
/// <summary>Normalize whitespace in a raw string.</summary>
/// <param name="input">The input to strip.</param>
+#if NET5_0_OR_GREATER
[return: NotNullIfNotNull("input")]
+#endif
private string? NormalizeWhitespace(string? input)
{
return input
diff --git a/src/SMAPI.Toolkit/Serialization/Models/ManifestContentPackFor.cs b/src/SMAPI.Toolkit/Serialization/Models/ManifestContentPackFor.cs
index dcdbcf74..f7dc8aa8 100644
--- a/src/SMAPI.Toolkit/Serialization/Models/ManifestContentPackFor.cs
+++ b/src/SMAPI.Toolkit/Serialization/Models/ManifestContentPackFor.cs
@@ -33,7 +33,9 @@ namespace StardewModdingAPI.Toolkit.Serialization.Models
*********/
/// <summary>Normalize whitespace in a raw string.</summary>
/// <param name="input">The input to strip.</param>
+#if NET5_0_OR_GREATER
[return: NotNullIfNotNull("input")]
+#endif
private string? NormalizeWhitespace(string? input)
{
return input?.Trim();
diff --git a/src/SMAPI.Toolkit/Serialization/Models/ManifestDependency.cs b/src/SMAPI.Toolkit/Serialization/Models/ManifestDependency.cs
index 5d1b73b1..fa254ea7 100644
--- a/src/SMAPI.Toolkit/Serialization/Models/ManifestDependency.cs
+++ b/src/SMAPI.Toolkit/Serialization/Models/ManifestDependency.cs
@@ -54,7 +54,9 @@ namespace StardewModdingAPI.Toolkit.Serialization.Models
*********/
/// <summary>Normalize whitespace in a raw string.</summary>
/// <param name="input">The input to strip.</param>
+#if NET5_0_OR_GREATER
[return: NotNullIfNotNull("input")]
+#endif
private string? NormalizeWhitespace(string? input)
{
return input?.Trim();