From 8de900ea1a4e82ca81d6adc5a32fec906bdd8329 Mon Sep 17 00:00:00 2001
From: zhaowenkai <799480165@qq.com>
Date: Mon, 18 Dec 2023 11:01:11 +0800
Subject: [PATCH] fix serialize error when CSSObject is null

---
 src/Extensions/CSSInterpolationExtension.cs | 11 ++++++++---
 src/Styles/Style.cs                         |  2 +-
 2 files changed, 9 insertions(+), 4 deletions(-)

diff --git a/src/Extensions/CSSInterpolationExtension.cs b/src/Extensions/CSSInterpolationExtension.cs
index 64a2ae2..930ac19 100644
--- a/src/Extensions/CSSInterpolationExtension.cs
+++ b/src/Extensions/CSSInterpolationExtension.cs
@@ -1,4 +1,5 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 
 namespace CssInCSharp
 {
@@ -8,7 +9,11 @@ public static CSSObject[] ToCssArray(this CSSInterpolation value)
         {
             if (value.IsT0)
             {
-                return new[] { value.AsT0 };
+                if (value.AsT0 == null)
+                {
+                    return Array.Empty<CSSObject>();
+                }
+                return new CSSObject[] { value.AsT0 };
             }
             else if (value.IsT1)
             {
@@ -21,7 +26,7 @@ public static CSSObject[] ToCssArray(this CSSInterpolation value)
             }
             else
             {
-                return new CSSObject[] { };
+                return Array.Empty<CSSObject>();
             }
         }
     }
diff --git a/src/Styles/Style.cs b/src/Styles/Style.cs
index 740ff40..a705588 100644
--- a/src/Styles/Style.cs
+++ b/src/Styles/Style.cs
@@ -30,7 +30,7 @@ protected override void BuildRenderTree(RenderTreeBuilder builder)
                 var sb = new StringBuilder();
                 foreach (var css in csses)
                 {
-                    sb.Append(css.SerializeCss(HashId));
+                    sb.Append(css?.SerializeCss(HashId));
                 }
                 return new StyleCache.Item
                 {