Function call performance improvements

Jint.Benchmark/DictionaryBenchmark.cs

@@ -0,0 +1,74 @@
+using System.Collections.Generic;
+using Jint.Collections;
+using BenchmarkDotNet.Attributes;
+
+namespace Jint.Benchmark
+{
+    [MemoryDiagnoser]
+    public class DictionaryBenchmark
+    {
+        private static readonly string[] _keys =
+        {
+            "some",
+            "key and",
+            "another",
+            "varying",
+            "---the --",
+            "keys and more",
+            "aa bbb",
+            "asasd asd ",
+            "asdsad asd as s",
+            "asdadsasa",
+            "23323232323",
+            "asdadsada sa213"
+        };
+
+        [Params(0, 2, 3, 5, 8, 9, 10)]
+        public int N { get; set; }
+
+        [Benchmark]
+        public void HybridDictionary()
+        {
+            var hybridDictionary = new HybridDictionary<string, object>();
+            for (var i = 0; i < N; i++)
+            {
+                hybridDictionary.Add(_keys[i], _keys);
+            }
+
+            foreach (var key in _keys)
+            {
+                hybridDictionary.ContainsKey(key);
+            }
+        }
+
+        [Benchmark]
+        public void Dictionary()
+        {
+            var dictionary = new Dictionary<string, object>();
+            for (var i = 0; i < N; i++)
+            {
+                dictionary.Add(_keys[i], _keys);
+            }
+
+            foreach (var key in _keys)
+            {
+                dictionary.ContainsKey(key);
+            }
+        }
+
+        [Benchmark]
+        public void StringDictionarySlim()
+        {
+            var dictionary = new StringDictionarySlim<object>();
+            for (var i = 0; i < N; i++)
+            {
+                dictionary[_keys[i]] =_keys;
+            }
+
+            foreach (var key in _keys)
+            {
+                dictionary.ContainsKey(key);
+            }
+        }
+    }
+}

Jint.Benchmark/Jint.Benchmark.csproj

@@ -12,6 +12,8 @@
     <GenerateAssemblyCopyrightAttribute>false</GenerateAssemblyCopyrightAttribute>
     <GenerateAssemblyVersionAttribute>false</GenerateAssemblyVersionAttribute>
     <GenerateAssemblyFileVersionAttribute>false</GenerateAssemblyFileVersionAttribute>
+    <AssemblyOriginatorKeyFile>..\Jint\Jint.snk</AssemblyOriginatorKeyFile>
+    <SignAssembly>true</SignAssembly>
     <LangVersion>latest</LangVersion>
   </PropertyGroup>
   <ItemGroup>

Jint.Benchmark/UncacheableExpressionsBenchmark.cs

@@ -21,11 +21,18 @@ public class UncacheableExpressionsBenchmark
         private string targetObject;
         private JsValue[] targetJsObject;
 
-        private const string script = @"
+        private const string NonArrowFunctionScript = @"
 function output(d) {
     var doc = d.SubDocuments.find(function(x){return x.Id==='testing';});
     return { Id : d.Id, Deleted : d.Deleted, SubTestId : (doc!==null&&doc!==undefined)?doc.Id:null, Values : d.SubDocuments.map(function(x){return {TargetId:x.TargetId,TargetValue:x.TargetValue,SubDocuments:x.SubDocuments.filter(function(s){return (s!==null&&s!==undefined);}).map(function(s){return {TargetId:s.TargetId,TargetValue:s.TargetValue};})};}) };
 }
+";
+
+        private const string ArrowFunctionScript = @"
+function output(d) {
+    var doc = d.SubDocuments.find(x => x.Id==='testing');
+    return { Id : d.Id, Deleted : d.Deleted, SubTestId : (doc!==null&&doc!==undefined)?doc.Id:null, Values : d.SubDocuments.map(x => ({ TargetId:x.TargetId,TargetValue:x.TargetValue,SubDocuments:x.SubDocuments.filter(s => (s!==null&&s!==undefined)).map(s => ({ TargetId: s.TargetId, TargetValue: s.TargetValue}))})) };
+}
 ";
 
         private Engine engine;
@@ -72,7 +79,7 @@ public void Setup()
                 }
             }
 
-            CreateEngine();
+            CreateEngine(Arrow ? ArrowFunctionScript : NonArrowFunctionScript);
         }
 
         private static void InitializeEngine(Options options)
@@ -87,6 +94,9 @@ private static void InitializeEngine(Options options)
         [Params(500)]
         public int N { get; set; }
 
+        [Params(true, false)]
+        public bool Arrow { get; set; }
+
         [Benchmark]
         public void Benchmark()
         {
@@ -97,84 +107,12 @@ public void Benchmark()
             }
         }
 
-        private void CreateEngine()
+        private void CreateEngine(string script)
         {
             engine = new Engine(InitializeEngine);
-            engine.Execute(Polyfills);
             engine.Execute(script);
             engine.Execute(targetObject);
             targetJsObject = new[] {engine.GetValue("d")};
         }
-
-        private const string Polyfills = @"
-//https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/endsWith
-if (!String.prototype.endsWith) {
-    String.prototype.endsWith = function (searchStr, position) {
-        if (!(position < this.length))
-            position = this.length;
-        else
-            position |= 0; // round position
-        return this.substr(position - searchStr.length,
-            searchStr.length) === searchStr;
-    };
-}
-//https://github.com/jsPolyfill/Array.prototype.find/blob/master/find.js
-if (!Array.prototype.find) {
-    Array.prototype.find = Array.prototype.find || function(callback) {
-        if (this === null) {
-            throw new TypeError('Array.prototype.find called on null or undefined');
-        } else if (typeof callback !== 'function') {
-            throw new TypeError('callback must be a function');
-        }
-        var list = Object(this);
-        // Makes sures is always has an positive integer as length.
-        var length = list.length >>> 0;
-        var thisArg = arguments[1];
-        for (var i = 0; i < length; i++) {
-            var element = list[i];
-            if ( callback.call(thisArg, element, i, list) ) {
-                return element;
-            }
-        }
-    };
-}
-
-if (!Array.prototype.fastFilter) {
-    Array.prototype.fastFilter = function(callback) {
-        var results = [];
-        var item;
-        var len = this.length;
-        for (var i = 0, len = len; i < len; i++) {
-            item = this[i];
-            if (callback(item)) results.push(item);
-        }
-        return results;
-    }
-}
-
-if (!Array.prototype.fastMap) {
-    Array.prototype.fastMap = function(callback) {
-        var h = [];
-        var len = this.length;
-        for (var i = 0, len = len; i < len; i++) {
-            h.push(callback(this[i]));
-        }
-        return h;
-    }
-}
-
-
-if (!Array.prototype.fastFind) {
-    Array.prototype.fastFind = function(callback) {
-        var item;
-        var len = this.length;
-        for (var i = 0, len = len; i < len; i++) {
-            item = this[i];
-            if (callback(item)) return item;
-        }
-    }
-}
-
-";
     }
 }

Jint.Tests.Ecma/Jint.Tests.Ecma.csproj

@@ -13,4 +13,7 @@
     <PackageReference Include="xunit.runner.console" Version="2.4.1" />
     <DotNetCliToolReference Include="dotnet-xunit" Version="2.3.1" />
   </ItemGroup>
+  <ItemGroup>
+    <None Remove="TestCases\ch*\**" />
+  </ItemGroup>
 </Project>

Jint.Tests.Test262/Jint.Tests.Test262.csproj

@@ -14,4 +14,8 @@
     <PackageReference Include="xunit.runner.console" Version="2.4.1" />
     <DotNetCliToolReference Include="dotnet-xunit" Version="2.3.1" />
   </ItemGroup>
+  <ItemGroup>
+    <None Remove="harness\**" />
+    <None Remove="test\**" />
+  </ItemGroup>
 </Project>

Jint/AssemblyInfoExtras.cs

@@ -0,0 +1,3 @@
+using System.Runtime.CompilerServices;
+
+[assembly: InternalsVisibleTo("Jint.Benchmark, PublicKey=0024000004800000940000000602000000240000525341310004000001000100bf2553c9f214cb21f1f64ed62cadad8fe4f2fa11322a5dfa1d650743145c6085aba05b145b29867af656e0bb9bfd32f5d0deb1668263a38233e7e8e5bad1a3c6edd3f2ec6c512668b4aa797283101444628650949641b4f7cb16707efba542bb754afe87ce956f3a5d43f450d14364eb9571cbf213d1061852fb9dd47a6c05c4")]