Feature/j value

Nustache.Core.Tests/Describe_Render.cs

@@ -1,4 +1,6 @@
-using System.IO;
+using System.Data;
+using System.IO;
+using Newtonsoft.Json.Linq;
 using NUnit.Framework;
 
 namespace Nustache.Core.Tests
@@ -92,5 +94,15 @@ public void It_ignores_Newtonsoft_IEnumerable_results_with_no_values()
 
             Assert.AreEqual(@"<a href=""https://github.com/jdiamond/Nustache/"" class=""nustache--logo"">Nustache Main</a>", result);
         }
+
+        [TestCase("true", Result = "Hello World!")]
+        [TestCase("false", Result = "")]
+        public string It_identify_correctly_bool_from_Newtonsoft_JValue_object(string isExpectedMessage)
+        {
+            const string template = @"{{#if ABoolean}}{{AMessage}}{{/if}}";
+            var json = string.Format(@"{{""ABoolean"": {0},""AMessage"": ""Hello World!""}}", isExpectedMessage);
+
+            return Render.StringToString(template, JObject.Parse(json));
+        }
     }
 }

Nustache.Core/JValueIdentifier.cs

@@ -0,0 +1,81 @@
+#pragma warning disable 1584,1711,1572,1581,1580
+
+using System;
+
+namespace Nustache.Core
+{
+    /// <summary>
+    ///   Service resonsible for identifying whether a value is a <see cref="Newtonsoft.Json.Linq.JValue" />, determining its
+    ///   type and returns its value.
+    /// </summary>
+    public static class JValueIdentifier
+    {
+        #region Public Members
+
+        /// <summary>
+        ///   Determines whether the <paramref name="obj" /> is a <see cref="Newtonsoft.Json.Linq.JValue" />.
+        /// </summary>
+        /// <param name="obj">
+        ///   The <see cref="object" /> retrieved from the model.
+        /// </param>
+        /// <returns>
+        ///   <see langword="True" /> whether the <paramref name="obj" /> is a <see cref="Newtonsoft.Json.Linq.JValue" /> object
+        ///   otherwise <see langword="False" />.
+        /// </returns>
+        public static bool IsJValue(object obj)
+        {
+            return obj.GetType().ToString().Equals("Newtonsoft.Json.Linq.JValue");
+        }
+
+        /// <summary>
+        ///   Returns the value of the <see cref="Newtonsoft.Json.Linq.JValue" /> object.
+        /// </summary>
+        /// <param name="jValue">
+        ///   The <see cref="object" /> retrieved from the model.
+        /// </param>
+        /// <returns>
+        ///   A native value determined by the <see cref="Type"/> returned by the property Type of <see cref="Newtonsoft.Json.Linq.JValue" />.
+        /// </returns>
+        public static object GetValue(object jValue)
+        {
+            var jValueType = jValue.GetType();
+            var typeOfValue = jValueType.GetProperty("Type").GetValue(jValue, null).ToString();
+
+            if (typeOfValue == "Boolean") // JTokenType.Boolean
+            {
+                return GetValue<bool>(jValueType, jValue);
+            }
+
+            if (typeOfValue == "String") // JTokenType.String
+            {
+                return GetValue<string>(jValueType, jValue);
+            }
+
+            if (typeOfValue == "Integer") // JTokenType.Integer
+            {
+                return GetValue<long>(jValueType, jValueType);
+            }
+
+            if (typeOfValue == "Float") // JTokenType.Float
+            {
+                return GetValue<double>(jValueType, jValueType);
+            }
+
+            return null;
+        }
+
+        #endregion
+
+        #region Private Members
+
+        private static T GetValue<T>(Type type, object obj)
+        {
+            var value = type.GetProperty("Value").GetValue(obj, null);
+            var valid = value is T;
+
+            return valid ? (T) value : default(T);
+        }
+
+        #endregion
+    }
+}

Nustache.Core/Nustache.Core.csproj

@@ -54,6 +54,7 @@
     <Compile Include="FileSystemTemplateLocator.cs" />
     <Compile Include="GenericDictionaryUtil.cs" />
     <Compile Include="Helpers.cs" />
+    <Compile Include="JValueIdentifier.cs" />
     <Compile Include="NustacheDataContextMissException.cs" />
     <Compile Include="NustacheEmptyStringException.cs" />
     <Compile Include="PartVisitor.cs" />

Nustache.Core/ValueGetter.cs

@@ -135,7 +135,8 @@ internal PropertyDescriptorValueGetter(object target, PropertyDescriptor propert
 
         public override object GetValue()
         {
-            return _propertyDescriptor.GetValue(_target);
+            var value = _propertyDescriptor.GetValue(_target);
+            return JValueIdentifier.IsJValue(value) ? JValueIdentifier.GetValue(value) : value;
         }
     }