Implementing Index support

Jint.Tests/Runtime/InteropTests.cs

@@ -99,7 +99,72 @@ namespace Jint.Tests.Runtime
                 assert(p.Name === 'Donald Duck');
             ");
 
-            Assert.Equal("Donald Duck", p.Name);
+            Assert.Equal("Donald Duck", p.Name);
+        }
+
+        [Fact]
+        public void CanGetIndexUsingStringKey()
+        {
+            var dictionary = new Dictionary<string, Person>();
+            dictionary.Add("person1", new Person { Name = "Mickey Mouse" });
+            dictionary.Add("person2", new Person { Name = "Goofy" });
+
+            _engine.SetValue("dictionary", dictionary);
+
+            RunTest(@"
+                assert(dictionary['person1'].Name === 'Mickey Mouse');
+                assert(dictionary['person2'].Name === 'Goofy');
+            ");
+        }
+
+        [Fact]
+        public void CanSetIndexUsingStringKey()
+        {
+            var dictionary = new Dictionary<string, Person>();
+            dictionary.Add("person1", new Person { Name = "Mickey Mouse" });
+            dictionary.Add("person2", new Person { Name = "Goofy" });
+
+            _engine.SetValue("dictionary", dictionary);
+
+            RunTest(@"
+                dictionary['person2'].Name = 'Donald Duck';
+                assert(dictionary['person2'].Name === 'Donald Duck');
+            ");
+
+            Assert.Equal("Donald Duck", dictionary["person2"].Name);
+        }
+
+        [Fact]
+        public void CanGetIndexUsingIntegerKey()
+        {
+            var dictionary = new Dictionary<int, string>();
+            dictionary.Add(1, "Mickey Mouse");
+            dictionary.Add(2, "Goofy");
+
+            _engine.SetValue("dictionary", dictionary);
+
+            RunTest(@"
+                assert(dictionary[1] === 'Mickey Mouse');
+                assert(dictionary[2] === 'Goofy');
+            ");
+        }
+
+        [Fact]
+        public void CanSetIndexUsingIntegerKey()
+        {
+            var dictionary = new Dictionary<int, string>();
+            dictionary.Add(1, "Mickey Mouse");
+            dictionary.Add(2, "Goofy");
+
+            _engine.SetValue("dictionary", dictionary);
+
+            RunTest(@"
+                dictionary[2] = 'Donald Duck';
+                assert(dictionary[2] === 'Donald Duck');
+            ");
+
+            Assert.Equal("Mickey Mouse", dictionary[1]);
+            Assert.Equal("Donald Duck", dictionary[2]);
         }
 
         [Fact]

Jint/Jint.csproj

@@ -1,209 +1,210 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
-  <PropertyGroup>
-    <MinimumVisualStudioVersion>10.0</MinimumVisualStudioVersion>
-    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
-    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
-    <ProjectGuid>{678738DA-F723-4920-B9E5-CAD667104BDA}</ProjectGuid>
-    <OutputType>Library</OutputType>
-    <AppDesignerFolder>Properties</AppDesignerFolder>
-    <RootNamespace>Jint</RootNamespace>
-    <AssemblyName>Jint</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
-    <TargetFrameworkProfile>Profile136</TargetFrameworkProfile>
-    <FileAlignment>512</FileAlignment>
-    <ProjectTypeGuids>{786C830F-07A1-408B-BD7F-6EE04809D6DB};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
-    <FileUpgradeFlags>
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-    <UpgradeBackupLocation>
-    </UpgradeBackupLocation>
-    <OldToolsVersion>4.0</OldToolsVersion>
-  </PropertyGroup>
-  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
-    <DebugSymbols>true</DebugSymbols>
-    <DebugType>full</DebugType>
-    <Optimize>false</Optimize>
-    <OutputPath>bin\Debug\</OutputPath>
-    <DefineConstants>DEBUG;TRACE</DefineConstants>
-    <ErrorReport>prompt</ErrorReport>
-    <WarningLevel>4</WarningLevel>
-  </PropertyGroup>
-  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
-    <DebugType>pdbonly</DebugType>
-    <Optimize>true</Optimize>
-    <OutputPath>bin\Release\</OutputPath>
-    <DefineConstants>TRACE</DefineConstants>
-    <ErrorReport>prompt</ErrorReport>
-    <WarningLevel>4</WarningLevel>
-  </PropertyGroup>
-  <PropertyGroup>
-    <SignAssembly>true</SignAssembly>
-  </PropertyGroup>
-  <PropertyGroup>
-    <AssemblyOriginatorKeyFile>Jint.snk</AssemblyOriginatorKeyFile>
-  </PropertyGroup>
-  <ItemGroup>
-    <Compile Include="DeclarationBindingType.cs" />
-    <Compile Include="EvalCodeScope.cs" />
-    <Compile Include="Engine.cs" />
-    <Compile Include="Native\Array\ArrayConstructor.cs" />
-    <Compile Include="Native\Array\ArrayInstance.cs" />
-    <Compile Include="Native\Array\ArrayPrototype.cs" />
-    <Compile Include="Native\Boolean\BooleanPrototype.cs" />
-    <Compile Include="Native\Boolean\BooleanConstructor.cs" />
-    <Compile Include="Native\Boolean\BooleanInstance.cs" />
-    <Compile Include="Native\Function\BindFunctionInstance.cs" />
-    <Compile Include="Native\IPrimitiveInstance.cs" />
-    <Compile Include="Native\JsValue.cs" />
-    <Compile Include="Native\Null.cs" />
-    <Compile Include="Native\Number\Dtoa\CachePowers.cs" />
-    <Compile Include="Native\Number\Dtoa\DiyFp.cs" />
-    <Compile Include="Native\Number\Dtoa\DoubleHelper.cs" />
-    <Compile Include="Native\Number\Dtoa\FastDtoa.cs" />
-    <Compile Include="Native\Number\Dtoa\FastDtoaBuilder.cs" />
-    <Compile Include="Native\Number\Dtoa\NumberExtensions.cs" />
-    <Compile Include="Native\RegExp\RegExpConstructor.cs" />
-    <Compile Include="Native\RegExp\RegExpInstance.cs" />
-    <Compile Include="Native\RegExp\RegExpPrototype.cs" />
-    <Compile Include="Native\Date\DatePrototype.cs" />
-    <Compile Include="Native\Date\DateConstructor.cs" />
-    <Compile Include="Native\Date\DateInstance.cs" />
-    <Compile Include="Native\Error\ErrorPrototype.cs" />
-    <Compile Include="Native\Error\ErrorConstructor.cs" />
-    <Compile Include="Native\Error\ErrorInstance.cs" />
-    <Compile Include="Native\Argument\ArgumentsObject.cs" />
-    <Compile Include="Native\Function\FunctionPrototype.cs" />
-    <Compile Include="Native\Function\ThrowTypeError.cs" />
-    <Compile Include="Native\Function\EvalFunctionInstance.cs" />
-    <Compile Include="Native\Function\FunctionConstructor.cs" />
-    <Compile Include="Native\Function\FunctionInstance.cs" />
-    <Compile Include="Native\Function\FunctionShim.cs" />
-    <Compile Include="Native\Global\GlobalObject.cs" />
-    <Compile Include="Native\ICallable.cs" />
-    <Compile Include="Native\Function\ScriptFunctionInstance.cs" />
-    <Compile Include="Native\IConstructor.cs" />
-    <Compile Include="Native\Json\JsonInstance.cs" />
-    <Compile Include="Native\Json\JsonSerializer.cs" />
-    <Compile Include="Native\Math\MathInstance.cs" />
-    <Compile Include="Native\Number\NumberPrototype.cs" />
-    <Compile Include="Native\Number\NumberConstructor.cs" />
-    <Compile Include="Native\Number\NumberInstance.cs" />
-    <Compile Include="Native\Object\ObjectConstructor.cs" />
-    <Compile Include="Native\Object\ObjectInstance.cs" />
-    <Compile Include="Native\Object\ObjectPrototype.cs" />
-    <Compile Include="Native\String\StringPrototype.cs" />
-    <Compile Include="Native\String\StringConstructor.cs" />
-    <Compile Include="Native\String\StringInstance.cs" />
-    <Compile Include="Native\Undefined.cs" />
-    <Compile Include="Options.cs" />
-    <Compile Include="Parser\Ast\ArrayExpression.cs" />
-    <Compile Include="Parser\Ast\AssignmentExpression.cs" />
-    <Compile Include="Parser\Ast\BinaryExpression.cs" />
-    <Compile Include="Parser\Ast\BlockStatement.cs" />
-    <Compile Include="Parser\Ast\BreakStatement.cs" />
-    <Compile Include="Parser\Ast\CallExpression.cs" />
-    <Compile Include="Parser\Ast\CatchClause.cs" />
-    <Compile Include="Parser\Ast\ConditionalExpression.cs" />
-    <Compile Include="Parser\Ast\ContinueStatement.cs" />
-    <Compile Include="Parser\Ast\RegExpLiteral.cs" />
-    <Compile Include="Parser\Ast\LogicalExpression.cs" />
-    <Compile Include="Parser\Ast\DebuggerStatement.cs" />
-    <Compile Include="Parser\Ast\DoWhileStatement.cs" />
-    <Compile Include="Parser\Ast\EmptyStatement.cs" />
-    <Compile Include="Parser\Ast\Expression.cs" />
-    <Compile Include="Parser\Ast\ExpressionStatement.cs" />
-    <Compile Include="Parser\Ast\ForInStatement.cs" />
-    <Compile Include="Parser\Ast\ForStatement.cs" />
-    <Compile Include="Parser\Ast\FunctionDeclaration.cs" />
-    <Compile Include="Parser\Ast\FunctionExpression.cs" />
-    <Compile Include="Parser\Ast\Identifier.cs" />
-    <Compile Include="Parser\Ast\IfStatement.cs" />
-    <Compile Include="Native\Json\JsonParser.cs" />
-    <Compile Include="Parser\IFunctionDeclaration.cs" />
-    <Compile Include="Parser\Ast\IPropertyKeyExpression.cs" />
-    <Compile Include="Parser\IFunctionScope.cs" />
-    <Compile Include="Parser\IVariableScope.cs" />
-    <Compile Include="Parser\Ast\LabeledStatement.cs" />
-    <Compile Include="Parser\Ast\Literal.cs" />
-    <Compile Include="Parser\Ast\MemberExpression.cs" />
-    <Compile Include="Parser\Ast\NewExpression.cs" />
-    <Compile Include="Parser\Ast\ObjectExpression.cs" />
-    <Compile Include="Parser\Ast\Program.cs" />
-    <Compile Include="Parser\Ast\Property.cs" />
-    <Compile Include="Parser\Ast\ReturnStatement.cs" />
-    <Compile Include="Parser\Ast\SequenceExpression.cs" />
-    <Compile Include="Parser\Ast\Statement.cs" />
-    <Compile Include="Parser\Ast\SwitchCase.cs" />
-    <Compile Include="Parser\Ast\SwitchStatement.cs" />
-    <Compile Include="Parser\Ast\SyntaxNode.cs" />
-    <Compile Include="Parser\Ast\SyntaxNodes.cs" />
-    <Compile Include="Parser\Ast\ThisExpression.cs" />
-    <Compile Include="Parser\Ast\ThrowStatement.cs" />
-    <Compile Include="Parser\Ast\TryStatement.cs" />
-    <Compile Include="Parser\Ast\UnaryExpression.cs" />
-    <Compile Include="Parser\Ast\UpdateExpression.cs" />
-    <Compile Include="Parser\Ast\VariableDeclaration.cs" />
-    <Compile Include="Parser\Ast\VariableDeclarator.cs" />
-    <Compile Include="Parser\Ast\WhileStatement.cs" />
-    <Compile Include="Parser\Ast\WithStatement.cs" />
-    <Compile Include="Parser\Comment.cs" />
-    <Compile Include="Parser\JavaScriptParser.cs" />
-    <Compile Include="Parser\Loc.cs" />
-    <Compile Include="Parser\Messages.cs" />
-    <Compile Include="Parser\ParserException.cs" />
-    <Compile Include="Parser\ParserExtensions.cs" />
-    <Compile Include="Parser\ParserOptions.cs" />
-    <Compile Include="Parser\Position.cs" />
-    <Compile Include="Parser\State.cs" />
-    <Compile Include="Parser\Token.cs" />
-    <Compile Include="Properties\AssemblyInfo.cs" />
-    <Compile Include="Runtime\Arguments.cs" />
-    <Compile Include="Runtime\Completion.cs" />
-    <Compile Include="Runtime\Descriptors\PropertyDescriptor.cs" />
-    <Compile Include="Runtime\Descriptors\Specialized\FieldInfoDescriptor.cs" />
-    <Compile Include="Runtime\Descriptors\Specialized\PropertyInfoDescriptor.cs" />
-    <Compile Include="Runtime\Descriptors\Specialized\ClrAccessDescriptor.cs" />
-    <Compile Include="Runtime\Environments\Binding.cs" />
-    <Compile Include="Runtime\Environments\DeclarativeEnvironmentRecord.cs" />
-    <Compile Include="Runtime\Environments\EnvironmentRecord.cs" />
-    <Compile Include="Runtime\Environments\ExecutionContext.cs" />
-    <Compile Include="Runtime\Environments\LexicalEnvironment.cs" />
-    <Compile Include="Runtime\Environments\ObjectEnvironmentRecord.cs" />
-    <Compile Include="Runtime\ExpressionIntepreter.cs" />
-    <Compile Include="Runtime\Interop\DefaultTypeConverter.cs" />
-    <Compile Include="Runtime\Interop\IObjectWrapper.cs" />
-    <Compile Include="Runtime\Interop\IObjectConverter.cs" />
-    <Compile Include="Runtime\Interop\ITypeConverter.cs" />
-    <Compile Include="Runtime\Interop\MethodInfoFunctionInstance.cs" />
-    <Compile Include="Runtime\Interop\ClrFunctionInstance.cs" />
-    <Compile Include="Runtime\Interop\NamespaceReference.cs" />
-    <Compile Include="Runtime\Interop\ObjectWrapper .cs" />
-    <Compile Include="Runtime\Interop\SetterFunctionInstance.cs" />
-    <Compile Include="Runtime\Interop\GetterFunctionInstance.cs" />
-    <Compile Include="Runtime\Interop\DelegateWrapper.cs" />
-    <Compile Include="Runtime\Interop\TypeReference.cs" />
-    <Compile Include="Runtime\Interop\TypeReferencePrototype.cs" />
-    <Compile Include="Runtime\JavaScriptException.cs" />
-    <Compile Include="Runtime\References\Reference.cs" />
-    <Compile Include="Runtime\StatementInterpreter.cs" />
-    <Compile Include="Runtime\StatementsCountOverflowException.cs" />
-    <Compile Include="Runtime\TypeConverter.cs" />
-    <Compile Include="StrictModeScope.cs" />
-  </ItemGroup>
-  <ItemGroup>
-    <None Include="Jint.snk" />
-  </ItemGroup>
-  <Import Project="$(MSBuildExtensionsPath32)\Microsoft\Portable\$(TargetFrameworkVersion)\Microsoft.Portable.CSharp.targets" />
-  <PropertyGroup>
-    <PostBuildEvent>
-    </PostBuildEvent>
-  </PropertyGroup>
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
+  <PropertyGroup>
+    <MinimumVisualStudioVersion>10.0</MinimumVisualStudioVersion>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProjectGuid>{678738DA-F723-4920-B9E5-CAD667104BDA}</ProjectGuid>
+    <OutputType>Library</OutputType>
+    <AppDesignerFolder>Properties</AppDesignerFolder>
+    <RootNamespace>Jint</RootNamespace>
+    <AssemblyName>Jint</AssemblyName>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkProfile>Profile136</TargetFrameworkProfile>
+    <FileAlignment>512</FileAlignment>
+    <ProjectTypeGuids>{786C830F-07A1-408B-BD7F-6EE04809D6DB};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
+    <FileUpgradeFlags>
+    </FileUpgradeFlags>
+    <UpgradeBackupLocation>
+    </UpgradeBackupLocation>
+    <OldToolsVersion>4.0</OldToolsVersion>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup>
+    <SignAssembly>true</SignAssembly>
+  </PropertyGroup>
+  <PropertyGroup>
+    <AssemblyOriginatorKeyFile>Jint.snk</AssemblyOriginatorKeyFile>
+  </PropertyGroup>
+  <ItemGroup>
+    <Compile Include="DeclarationBindingType.cs" />
+    <Compile Include="EvalCodeScope.cs" />
+    <Compile Include="Engine.cs" />
+    <Compile Include="Native\Array\ArrayConstructor.cs" />
+    <Compile Include="Native\Array\ArrayInstance.cs" />
+    <Compile Include="Native\Array\ArrayPrototype.cs" />
+    <Compile Include="Native\Boolean\BooleanPrototype.cs" />
+    <Compile Include="Native\Boolean\BooleanConstructor.cs" />
+    <Compile Include="Native\Boolean\BooleanInstance.cs" />
+    <Compile Include="Native\Function\BindFunctionInstance.cs" />
+    <Compile Include="Native\IPrimitiveInstance.cs" />
+    <Compile Include="Native\JsValue.cs" />
+    <Compile Include="Native\Null.cs" />
+    <Compile Include="Native\Number\Dtoa\CachePowers.cs" />
+    <Compile Include="Native\Number\Dtoa\DiyFp.cs" />
+    <Compile Include="Native\Number\Dtoa\DoubleHelper.cs" />
+    <Compile Include="Native\Number\Dtoa\FastDtoa.cs" />
+    <Compile Include="Native\Number\Dtoa\FastDtoaBuilder.cs" />
+    <Compile Include="Native\Number\Dtoa\NumberExtensions.cs" />
+    <Compile Include="Native\RegExp\RegExpConstructor.cs" />
+    <Compile Include="Native\RegExp\RegExpInstance.cs" />
+    <Compile Include="Native\RegExp\RegExpPrototype.cs" />
+    <Compile Include="Native\Date\DatePrototype.cs" />
+    <Compile Include="Native\Date\DateConstructor.cs" />
+    <Compile Include="Native\Date\DateInstance.cs" />
+    <Compile Include="Native\Error\ErrorPrototype.cs" />
+    <Compile Include="Native\Error\ErrorConstructor.cs" />
+    <Compile Include="Native\Error\ErrorInstance.cs" />
+    <Compile Include="Native\Argument\ArgumentsObject.cs" />
+    <Compile Include="Native\Function\FunctionPrototype.cs" />
+    <Compile Include="Native\Function\ThrowTypeError.cs" />
+    <Compile Include="Native\Function\EvalFunctionInstance.cs" />
+    <Compile Include="Native\Function\FunctionConstructor.cs" />
+    <Compile Include="Native\Function\FunctionInstance.cs" />
+    <Compile Include="Native\Function\FunctionShim.cs" />
+    <Compile Include="Native\Global\GlobalObject.cs" />
+    <Compile Include="Native\ICallable.cs" />
+    <Compile Include="Native\Function\ScriptFunctionInstance.cs" />
+    <Compile Include="Native\IConstructor.cs" />
+    <Compile Include="Native\Json\JsonInstance.cs" />
+    <Compile Include="Native\Json\JsonSerializer.cs" />
+    <Compile Include="Native\Math\MathInstance.cs" />
+    <Compile Include="Native\Number\NumberPrototype.cs" />
+    <Compile Include="Native\Number\NumberConstructor.cs" />
+    <Compile Include="Native\Number\NumberInstance.cs" />
+    <Compile Include="Native\Object\ObjectConstructor.cs" />
+    <Compile Include="Native\Object\ObjectInstance.cs" />
+    <Compile Include="Native\Object\ObjectPrototype.cs" />
+    <Compile Include="Native\String\StringPrototype.cs" />
+    <Compile Include="Native\String\StringConstructor.cs" />
+    <Compile Include="Native\String\StringInstance.cs" />
+    <Compile Include="Native\Undefined.cs" />
+    <Compile Include="Options.cs" />
+    <Compile Include="Parser\Ast\ArrayExpression.cs" />
+    <Compile Include="Parser\Ast\AssignmentExpression.cs" />
+    <Compile Include="Parser\Ast\BinaryExpression.cs" />
+    <Compile Include="Parser\Ast\BlockStatement.cs" />
+    <Compile Include="Parser\Ast\BreakStatement.cs" />
+    <Compile Include="Parser\Ast\CallExpression.cs" />
+    <Compile Include="Parser\Ast\CatchClause.cs" />
+    <Compile Include="Parser\Ast\ConditionalExpression.cs" />
+    <Compile Include="Parser\Ast\ContinueStatement.cs" />
+    <Compile Include="Parser\Ast\RegExpLiteral.cs" />
+    <Compile Include="Parser\Ast\LogicalExpression.cs" />
+    <Compile Include="Parser\Ast\DebuggerStatement.cs" />
+    <Compile Include="Parser\Ast\DoWhileStatement.cs" />
+    <Compile Include="Parser\Ast\EmptyStatement.cs" />
+    <Compile Include="Parser\Ast\Expression.cs" />
+    <Compile Include="Parser\Ast\ExpressionStatement.cs" />
+    <Compile Include="Parser\Ast\ForInStatement.cs" />
+    <Compile Include="Parser\Ast\ForStatement.cs" />
+    <Compile Include="Parser\Ast\FunctionDeclaration.cs" />
+    <Compile Include="Parser\Ast\FunctionExpression.cs" />
+    <Compile Include="Parser\Ast\Identifier.cs" />
+    <Compile Include="Parser\Ast\IfStatement.cs" />
+    <Compile Include="Native\Json\JsonParser.cs" />
+    <Compile Include="Parser\IFunctionDeclaration.cs" />
+    <Compile Include="Parser\Ast\IPropertyKeyExpression.cs" />
+    <Compile Include="Parser\IFunctionScope.cs" />
+    <Compile Include="Parser\IVariableScope.cs" />
+    <Compile Include="Parser\Ast\LabeledStatement.cs" />
+    <Compile Include="Parser\Ast\Literal.cs" />
+    <Compile Include="Parser\Ast\MemberExpression.cs" />
+    <Compile Include="Parser\Ast\NewExpression.cs" />
+    <Compile Include="Parser\Ast\ObjectExpression.cs" />
+    <Compile Include="Parser\Ast\Program.cs" />
+    <Compile Include="Parser\Ast\Property.cs" />
+    <Compile Include="Parser\Ast\ReturnStatement.cs" />
+    <Compile Include="Parser\Ast\SequenceExpression.cs" />
+    <Compile Include="Parser\Ast\Statement.cs" />
+    <Compile Include="Parser\Ast\SwitchCase.cs" />
+    <Compile Include="Parser\Ast\SwitchStatement.cs" />
+    <Compile Include="Parser\Ast\SyntaxNode.cs" />
+    <Compile Include="Parser\Ast\SyntaxNodes.cs" />
+    <Compile Include="Parser\Ast\ThisExpression.cs" />
+    <Compile Include="Parser\Ast\ThrowStatement.cs" />
+    <Compile Include="Parser\Ast\TryStatement.cs" />
+    <Compile Include="Parser\Ast\UnaryExpression.cs" />
+    <Compile Include="Parser\Ast\UpdateExpression.cs" />
+    <Compile Include="Parser\Ast\VariableDeclaration.cs" />
+    <Compile Include="Parser\Ast\VariableDeclarator.cs" />
+    <Compile Include="Parser\Ast\WhileStatement.cs" />
+    <Compile Include="Parser\Ast\WithStatement.cs" />
+    <Compile Include="Parser\Comment.cs" />
+    <Compile Include="Parser\JavaScriptParser.cs" />
+    <Compile Include="Parser\Loc.cs" />
+    <Compile Include="Parser\Messages.cs" />
+    <Compile Include="Parser\ParserException.cs" />
+    <Compile Include="Parser\ParserExtensions.cs" />
+    <Compile Include="Parser\ParserOptions.cs" />
+    <Compile Include="Parser\Position.cs" />
+    <Compile Include="Parser\State.cs" />
+    <Compile Include="Parser\Token.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+    <Compile Include="Runtime\Arguments.cs" />
+    <Compile Include="Runtime\Completion.cs" />
+    <Compile Include="Runtime\Descriptors\PropertyDescriptor.cs" />
+    <Compile Include="Runtime\Descriptors\Specialized\FieldInfoDescriptor.cs" />
+    <Compile Include="Runtime\Descriptors\Specialized\IndexDescriptor.cs" />
+    <Compile Include="Runtime\Descriptors\Specialized\PropertyInfoDescriptor.cs" />
+    <Compile Include="Runtime\Descriptors\Specialized\ClrAccessDescriptor.cs" />
+    <Compile Include="Runtime\Environments\Binding.cs" />
+    <Compile Include="Runtime\Environments\DeclarativeEnvironmentRecord.cs" />
+    <Compile Include="Runtime\Environments\EnvironmentRecord.cs" />
+    <Compile Include="Runtime\Environments\ExecutionContext.cs" />
+    <Compile Include="Runtime\Environments\LexicalEnvironment.cs" />
+    <Compile Include="Runtime\Environments\ObjectEnvironmentRecord.cs" />
+    <Compile Include="Runtime\ExpressionIntepreter.cs" />
+    <Compile Include="Runtime\Interop\DefaultTypeConverter.cs" />
+    <Compile Include="Runtime\Interop\IObjectWrapper.cs" />
+    <Compile Include="Runtime\Interop\IObjectConverter.cs" />
+    <Compile Include="Runtime\Interop\ITypeConverter.cs" />
+    <Compile Include="Runtime\Interop\MethodInfoFunctionInstance.cs" />
+    <Compile Include="Runtime\Interop\ClrFunctionInstance.cs" />
+    <Compile Include="Runtime\Interop\NamespaceReference.cs" />
+    <Compile Include="Runtime\Interop\ObjectWrapper .cs" />
+    <Compile Include="Runtime\Interop\SetterFunctionInstance.cs" />
+    <Compile Include="Runtime\Interop\GetterFunctionInstance.cs" />
+    <Compile Include="Runtime\Interop\DelegateWrapper.cs" />
+    <Compile Include="Runtime\Interop\TypeReference.cs" />
+    <Compile Include="Runtime\Interop\TypeReferencePrototype.cs" />
+    <Compile Include="Runtime\JavaScriptException.cs" />
+    <Compile Include="Runtime\References\Reference.cs" />
+    <Compile Include="Runtime\StatementInterpreter.cs" />
+    <Compile Include="Runtime\StatementsCountOverflowException.cs" />
+    <Compile Include="Runtime\TypeConverter.cs" />
+    <Compile Include="StrictModeScope.cs" />
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="Jint.snk" />
+  </ItemGroup>
+  <Import Project="$(MSBuildExtensionsPath32)\Microsoft\Portable\$(TargetFrameworkVersion)\Microsoft.Portable.CSharp.targets" />
+  <PropertyGroup>
+    <PostBuildEvent>
+    </PostBuildEvent>
+  </PropertyGroup>
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
        Other similar extension points exist, see Microsoft.Common.targets.
   <Target Name="BeforeBuild">
   </Target>
   <Target Name="AfterBuild">
   </Target>
-  -->
+  -->
 </Project>

Jint/Runtime/Descriptors/Specialized/IndexDescriptor.cs

@@ -0,0 +1,44 @@
+using System.Globalization;
+using System.Reflection;
+using Jint.Native;
+
+namespace Jint.Runtime.Descriptors.Specialized
+{
+    public sealed class IndexDescriptor : PropertyDescriptor
+    {
+        private readonly Engine _engine;
+        private readonly object _key;
+        private readonly object _item;
+        private readonly MethodInfo _getter;
+        private readonly MethodInfo _setter;
+
+        public IndexDescriptor(Engine engine, string key, object item)
+        {
+            _engine = engine;
+            _item = item;
+
+            _getter = item.GetType().GetMethod("get_Item", BindingFlags.Instance | BindingFlags.Public);
+            _setter = item.GetType().GetMethod("set_Item", BindingFlags.Instance | BindingFlags.Public);
+
+            _key = _engine.Options.GetTypeConverter().Convert(key, _getter.GetParameters()[0].ParameterType, CultureInfo.InvariantCulture);
+
+            Writable = true;
+        }
+
+        public override JsValue? Value
+        {
+            get
+            {
+                object[] parameters = { _key };
+                return JsValue.FromObject(_engine, _getter.Invoke(_item, parameters));
+            }
+
+            set
+            {
+                var defaultValue = _item.GetType().IsValueType ? System.Activator.CreateInstance(_item.GetType()) : null;
+                object[] parameters = { _key, value.HasValue ? value.Value.ToObject() : null };
+                _setter.Invoke(_item, parameters);
+            }
+        }
+    }
+}

Jint/Runtime/Interop/ObjectWrapper .cs

@@ -4,7 +4,8 @@ using System.Reflection;
 using Jint.Native;
 using Jint.Native.Object;
 using Jint.Runtime.Descriptors;
-using Jint.Runtime.Descriptors.Specialized;
+using Jint.Runtime.Descriptors.Specialized;
+using System.Collections;
 
 namespace Jint.Runtime.Interop
 {
@@ -87,7 +88,13 @@ namespace Jint.Runtime.Interop
             if (methods.Any())
             {
                 return new PropertyDescriptor(new MethodInfoFunctionInstance(Engine, methods), false, true, false);
-            }
+            }
+
+            // if no methods are found check if target is an IDictionary
+            if (typeof(IDictionary).IsAssignableFrom(type))
+            {
+                return new IndexDescriptor(Engine, propertyName, Target);
+            }
 
             return PropertyDescriptor.Undefined;
         }