# Microsoft.AspNetCore.Mvc.Razor.RuntimeCompilation

``` diff
 {
+    namespace Microsoft.AspNetCore.Mvc.ApplicationParts {
+        public static class AssemblyPartExtensions {
+            public static IEnumerable<string> GetReferencePaths(this AssemblyPart assemblyPart);
+        }
+    }
+    namespace Microsoft.AspNetCore.Mvc.Razor.RuntimeCompilation {
+        public class FileProviderRazorProjectItem : RazorProjectItem {
+            public FileProviderRazorProjectItem(IFileInfo fileInfo, string basePath, string filePath, string root);
+            public FileProviderRazorProjectItem(IFileInfo fileInfo, string basePath, string filePath, string root, string fileKind);
+            public override string BasePath { get; }
+            public override bool Exists { get; }
+            public IFileInfo FileInfo { get; }
+            public override string FileKind { get; }
+            public override string FilePath { get; }
+            public override string PhysicalPath { get; }
+            public override string RelativePhysicalPath { get; }
+            public override Stream Read();
+        }
+        public class MvcRazorRuntimeCompilationOptions {
+            public MvcRazorRuntimeCompilationOptions();
+            public IList<string> AdditionalReferencePaths { get; }
+            public IList<IFileProvider> FileProviders { get; }
+        }
+    }
+    namespace Microsoft.Extensions.DependencyInjection {
+        public static class RazorRuntimeCompilationMvcBuilderExtensions {
+            public static IMvcBuilder AddRazorRuntimeCompilation(this IMvcBuilder builder);
+            public static IMvcBuilder AddRazorRuntimeCompilation(this IMvcBuilder builder, Action<MvcRazorRuntimeCompilationOptions> setupAction);
+        }
+        public static class RazorRuntimeCompilationMvcCoreBuilderExtensions {
+            public static IMvcCoreBuilder AddRazorRuntimeCompilation(this IMvcCoreBuilder builder);
+            public static IMvcCoreBuilder AddRazorRuntimeCompilation(this IMvcCoreBuilder builder, Action<MvcRazorRuntimeCompilationOptions> setupAction);
+        }
+    }
+}
```

