Accelerated a conversion of script types to host types

Author: Taritsyn

src/MsieJavaScriptEngine/JsRt/Edge/EdgeTypeMapper.cs

@@ -123,7 +123,6 @@ public override EdgeJsValue MapToScriptType(object value)
 		public override object MapToHostType(EdgeJsValue value)
 		{
 			JsValueType valueType = value.ValueType;
-			EdgeJsValue processedValue;
 			object result;
 
 			switch (valueType)
@@ -135,16 +134,13 @@ public override object MapToHostType(EdgeJsValue value)
 					result = Undefined.Value;
 					break;
 				case JsValueType.Boolean:
-					processedValue = value.ConvertToBoolean();
-					result = processedValue.ToBoolean();
+					result = value.ToBoolean();
 					break;
 				case JsValueType.Number:
-					processedValue = value.ConvertToNumber();
-					result = NumericHelpers.CastDoubleValueToCorrectType(processedValue.ToDouble());
+					result = NumericHelpers.CastDoubleValueToCorrectType(value.ToDouble());
 					break;
 				case JsValueType.String:
-					processedValue = value.ConvertToString();
-					result = processedValue.ToString();
+					result = value.ToString();
 					break;
 				case JsValueType.Object:
 				case JsValueType.Function:
@@ -154,7 +150,8 @@ public override object MapToHostType(EdgeJsValue value)
 					result = value.HasExternalData ?
 						GCHandle.FromIntPtr(value.ExternalData).Target : value.ConvertToObject();
 #else
-					processedValue = value.ConvertToObject();
+					EdgeJsValue processedValue = valueType != JsValueType.Object ?
+						value.ConvertToObject() : value;
 					object obj = processedValue.ToObject();
 					var hostObj = obj as HostObject;
 					result = hostObj != null ? hostObj.Target : obj;

src/MsieJavaScriptEngine/JsRt/Ie/IeTypeMapper.cs

@@ -120,7 +120,6 @@ public override IeJsValue MapToScriptType(object value)
 		public override object MapToHostType(IeJsValue value)
 		{
 			JsValueType valueType = value.ValueType;
-			IeJsValue processedValue;
 			object result;
 
 			switch (valueType)
@@ -132,16 +131,13 @@ public override object MapToHostType(IeJsValue value)
 					result = Undefined.Value;
 					break;
 				case JsValueType.Boolean:
-					processedValue = value.ConvertToBoolean();
-					result = processedValue.ToBoolean();
+					result = value.ToBoolean();
 					break;
 				case JsValueType.Number:
-					processedValue = value.ConvertToNumber();
-					result = NumericHelpers.CastDoubleValueToCorrectType(processedValue.ToDouble());
+					result = NumericHelpers.CastDoubleValueToCorrectType(value.ToDouble());
 					break;
 				case JsValueType.String:
-					processedValue = value.ConvertToString();
-					result = processedValue.ToString();
+					result = value.ToString();
 					break;
 				case JsValueType.Object:
 				case JsValueType.Function:
@@ -151,7 +147,8 @@ public override object MapToHostType(IeJsValue value)
 					result = value.HasExternalData ?
 						GCHandle.FromIntPtr(value.ExternalData).Target : value.ConvertToObject();
 #else
-					processedValue = value.ConvertToObject();
+					IeJsValue processedValue = valueType != JsValueType.Object ?
+						value.ConvertToObject() : value;
 					object obj = processedValue.ToObject();
 					var hostObj = obj as HostObject;
 					result = hostObj != null ? hostObj.Target : obj;

src/MsieJavaScriptEngine/MsieJavaScriptEngine.csproj

@@ -23,7 +23,8 @@
 		<PackageTags>JavaScript;ECMAScript;MSIE;IE;Edge;Chakra</PackageTags>
 		<PackageReleaseNotes>1. Fixed a error, that occurred in the `Classic` mode during calling an embedded delegate, which does not return a result;
 2. Fixed a error, that occurred during setting a value to field of embedded type;
-3. Improved a performance of the embedding of objects and types.</PackageReleaseNotes>
+3. Improved a performance of the embedding of objects and types;
+4. Accelerated a conversion of script types to host types.</PackageReleaseNotes>
 		<NeutralLanguage>en-US</NeutralLanguage>
 		<PackageOutputPath>../../nuget</PackageOutputPath>
 		<GeneratePackageOnBuild>true</GeneratePackageOnBuild>

src/MsieJavaScriptEngine/readme.txt

@@ -25,7 +25,8 @@
       delegate, which does not return a result;
    2. Fixed a error, that occurred during setting a value to field of embedded
       type;
-   3. Improved a performance of the embedding of objects and types.
+   3. Improved a performance of the embedding of objects and types;
+   4. Accelerated a conversion of script types to host types.
 
    ============
    PROJECT SITE