From: Eric Erhardt <eric.erhardt@microsoft.com>
Date: Mon, 14 Jun 2021 15:03:41 +0000 (-0500)
Subject: Make JsonSerializer work when IsDynamicCodeSupported is false. (#54027)
X-Git-Tag: submit/tizen/20210909.063632~787
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=49fa010d4db7c49df8f5b6f6adf913518225fdeb;p=platform%2Fupstream%2Fdotnet%2Fruntime.git

Make JsonSerializer work when IsDynamicCodeSupported is false. (#54027)

Use the non-Emit codepath if IsDynamicCodeSupported is false.
---

diff --git a/src/libraries/System.Text.Json/src/System/Text/Json/Serialization/JsonSerializerOptions.cs b/src/libraries/System.Text.Json/src/System/Text/Json/Serialization/JsonSerializerOptions.cs
index d6bb341..b37f11e 100644
--- a/src/libraries/System.Text.Json/src/System/Text/Json/Serialization/JsonSerializerOptions.cs
+++ b/src/libraries/System.Text.Json/src/System/Text/Json/Serialization/JsonSerializerOptions.cs
@@ -559,7 +559,12 @@ namespace System.Text.Json
             {
                 if (_memberAccessorStrategy == null)
                 {
-#if NETFRAMEWORK || NETCOREAPP
+#if NETCOREAPP
+                    // if dynamic code isn't supported, fallback to reflection
+                    _memberAccessorStrategy = RuntimeFeature.IsDynamicCodeSupported ?
+                        new ReflectionEmitMemberAccessor() :
+                        new ReflectionMemberAccessor();
+#elif NETFRAMEWORK
                     _memberAccessorStrategy = new ReflectionEmitMemberAccessor();
 #else
                     _memberAccessorStrategy = new ReflectionMemberAccessor();