In configuration settings of the V8 JS engine was added one new property - DisableDynamicBinding (default false)

Author: Taritsyn

src/JavaScriptEngineSwitcher.V8/JavaScriptEngineSwitcher.V8.csproj

@@ -30,7 +30,8 @@ This package does not contain the native ClearScript.V8 assemblies. Therefore, y
  * Microsoft.ClearScript.V8.Native.osx-arm64</Description>
     <PackageTags>$(PackageCommonTags);V8;ClearScript</PackageTags>
     <PackageIconFullPath>../../Icons/JavaScriptEngineSwitcher_V8_Logo128x128.png</PackageIconFullPath>
-    <PackageReleaseNotes>Fixed a error #102 “Resources should conform to correct ICU standard for naming”. Special thanks to Tim Heuer.</PackageReleaseNotes>
+    <PackageReleaseNotes>1. Microsoft ClearScript.V8 was updated to version 7.3.2;
+2. In configuration settings of the V8 JS engine was added one new property - `DisableDynamicBinding` (default `false`).</PackageReleaseNotes>
   </PropertyGroup>
 
   <ItemGroup>

src/JavaScriptEngineSwitcher.V8/V8JsEngine.cs

@@ -130,6 +130,7 @@ public V8JsEngine(V8Settings settings)
 			{
 				_jsEngine = new OriginalEngine(constraints, flags, debugPort)
 				{
+					DisableDynamicBinding = v8Settings.DisableDynamicBinding,
 					MaxRuntimeHeapSize = v8Settings.MaxHeapSize,
 					RuntimeHeapSizeSampleInterval = v8Settings.HeapSizeSampleInterval,
 					MaxRuntimeStackUsage = v8Settings.MaxStackUsage

src/JavaScriptEngineSwitcher.V8/V8Settings.cs

@@ -19,39 +19,56 @@ public bool AwaitDebuggerAndPauseOnStart
 		}
 
 		/// <summary>
-		/// Gets or sets a flag for whether to enable script debugging features
-		/// (allows a TCP-based debugging)
+		/// Gets or sets a TCP port on which to listen for a debugger connection
 		/// </summary>
-		public bool EnableDebugging
+		public ushort DebugPort
 		{
 			get;
 			set;
 		}
 
 		/// <summary>
-		/// Gets or sets a flag for whether to enable remote script debugging.
-		/// This property is ignored if value of the <see cref="EnableDebugging"/>
-		/// property is false.
+		/// Gets or sets a flag for whether to disable dynamic method binding
 		/// </summary>
-		public bool EnableRemoteDebugging
+		/// <remarks>
+		/// <para>
+		/// When this property is set to <c>true</c>, the script engine bypasses the default method
+		/// binding algorithm and uses reflection-based method binding instead. This approach
+		/// abandons support for generic type inference and other features, but it avoids engaging
+		/// the dynamic infrastructure.
+		/// </para>
+		/// </remarks>
+		public bool DisableDynamicBinding
 		{
 			get;
 			set;
 		}
 
 		/// <summary>
-		/// Gets or sets a TCP port on which to listen for a debugger connection
+		/// Gets or sets a flag for whether to disable global members
 		/// </summary>
-		public ushort DebugPort
+		public bool DisableGlobalMembers
 		{
 			get;
 			set;
 		}
 
 		/// <summary>
-		/// Gets or sets a flag for whether to disable global members
+		/// Gets or sets a flag for whether to enable script debugging features
+		/// (allows a TCP-based debugging)
 		/// </summary>
-		public bool DisableGlobalMembers
+		public bool EnableDebugging
+		{
+			get;
+			set;
+		}
+
+		/// <summary>
+		/// Gets or sets a flag for whether to enable remote script debugging.
+		/// This property is ignored if value of the <see cref="EnableDebugging"/>
+		/// property is false.
+		/// </summary>
+		public bool EnableRemoteDebugging
 		{
 			get;
 			set;
@@ -195,10 +212,11 @@ public UIntPtr MaxStackUsage
 		public V8Settings()
 		{
 			AwaitDebuggerAndPauseOnStart = false;
-			EnableDebugging = false;
-			EnableRemoteDebugging = false;
 			DebugPort = 9222;
+			DisableDynamicBinding = false;
 			DisableGlobalMembers = false;
+			EnableDebugging = false;
+			EnableRemoteDebugging = false;
 			HeapExpansionMultiplier = 0;
 			HeapSizeSampleInterval = TimeSpan.Zero;
 			MaxArrayBufferAllocation = ulong.MaxValue;

src/JavaScriptEngineSwitcher.V8/readme.txt

@@ -31,8 +31,9 @@
    =============
    RELEASE NOTES
    =============
-   Fixed a error #102 “Resources should conform to correct ICU standard for
-   naming”. Special thanks to Tim Heuer.
+   1. Microsoft ClearScript.V8 was updated to version 7.3.2;
+   2. In configuration settings of the V8 JS engine was added one new property -
+      `DisableDynamicBinding` (default `false`).
 
    =============
    DOCUMENTATION

test/JavaScriptEngineSwitcher.Benchmarks/HostObjectsEmbeddingBenchmark.cs

@@ -171,9 +171,13 @@ public void NiL()
 		}
 
 		[Benchmark]
-		public void V8()
+		[Arguments(false)]
+		[Arguments(true)]
+		public void V8(bool disableDynamicBinding)
 		{
-			Func<IJsEngine> createJsEngine = () => new V8JsEngine();
+			Func<IJsEngine> createJsEngine = () => new V8JsEngine(
+				new V8Settings { DisableDynamicBinding = disableDynamicBinding }
+			);
 			EmbedAndUseHostObjects(createJsEngine);
 		}
 #endif

test/JavaScriptEngineSwitcher.Benchmarks/HostTypesEmbeddingBenchmark.cs

@@ -151,9 +151,13 @@ public void NiL()
 		}
 
 		[Benchmark]
-		public void V8()
+		[Arguments(false)]
+		[Arguments(true)]
+		public void V8(bool disableDynamicBinding)
 		{
-			Func<IJsEngine> createJsEngine = () => new V8JsEngine();
+			Func<IJsEngine> createJsEngine = () => new V8JsEngine(
+				new V8Settings { DisableDynamicBinding = disableDynamicBinding }
+			);
 			EmbedAndUseHostTypes(createJsEngine);
 		}
 #endif