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Handle properties and fields being replaced by derived classes.

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I added code that will (correctly) chose the most derived property/field
when a conflict exists between the parent and child.

According to Microsoft, there is no guarantee of the order that members
will be returned, so I had to determine the members distance from the
object's type down the inheritance hierarchy and pick the closest.
This commit is contained in:
Travis Parks 2014-03-02 00:43:08 -05:00
parent 517e38a6db
commit 7bda253bab
8 changed files with 103 additions and 71 deletions
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26
Local.testsettings
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@ -1,26 +0,0 @@
<?xml version="1.0" encoding="UTF-8"?>
<TestSettings name="Local" id="2bc42439-1bb6-4112-9c20-eca1ffcae064" xmlns="http://microsoft.com/schemas/VisualStudio/TeamTest/2010">
<Description>These are default test settings for a local test run.</Description>
<Execution>
<TestTypeSpecific>
<UnitTestRunConfig testTypeId="13cdc9d9-ddb5-4fa4-a97d-d965ccfc6d4b">
<AssemblyResolution>
<TestDirectory useLoadContext="true" />
</AssemblyResolution>
</UnitTestRunConfig>
</TestTypeSpecific>
<AgentRule name="LocalMachineDefaultRole">
<DataCollectors>
<DataCollector uri="datacollector://microsoft/CodeCoverage/1.0" assemblyQualifiedName="Microsoft.VisualStudio.TestTools.CodeCoverage.CoveragePlugIn, Microsoft.VisualStudio.QualityTools.Plugins.CodeCoverage, Version=10.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" friendlyName="Code Coverage">
<Configuration>
<CodeCoverage xmlns="">
<Regular>
<CodeCoverageItem binaryFile="mustache-sharp\bin\Debug\mustache-sharp.dll" pdbFile="mustache-sharp\bin\Debug\mustache-sharp.pdb" instrumentInPlace="true" />
</Regular>
</CodeCoverage>
</Configuration>
</DataCollector>
</DataCollectors>
</AgentRule>
</Execution>
</TestSettings>

21
TraceAndTestImpact.testsettings
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@ -1,21 +0,0 @@
<?xml version="1.0" encoding="UTF-8"?>
<TestSettings name="Trace and Test Impact" id="535ebf31-4d23-42a7-a823-ecb179ff7886" xmlns="http://microsoft.com/schemas/VisualStudio/TeamTest/2010">
<Description>These are test settings for Trace and Test Impact.</Description>
<Execution>
<TestTypeSpecific />
<AgentRule name="Execution Agents">
<DataCollectors>
<DataCollector uri="datacollector://microsoft/SystemInfo/1.0" assemblyQualifiedName="Microsoft.VisualStudio.TestTools.DataCollection.SystemInfo.SystemInfoDataCollector, Microsoft.VisualStudio.TestTools.DataCollection.SystemInfo, Version=10.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" friendlyName="System Information">
</DataCollector>
<DataCollector uri="datacollector://microsoft/ActionLog/1.0" assemblyQualifiedName="Microsoft.VisualStudio.TestTools.ManualTest.ActionLog.ActionLogPlugin, Microsoft.VisualStudio.TestTools.ManualTest.ActionLog, Version=10.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" friendlyName="Actions">
</DataCollector>
<DataCollector uri="datacollector://microsoft/HttpProxy/1.0" assemblyQualifiedName="Microsoft.VisualStudio.TraceCollector.HttpProxyCollector, Microsoft.VisualStudio.TraceCollector, Version=10.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" friendlyName="ASP.NET Client Proxy for IntelliTrace and Test Impact">
</DataCollector>
<DataCollector uri="datacollector://microsoft/TestImpact/1.0" assemblyQualifiedName="Microsoft.VisualStudio.TraceCollector.TestImpactDataCollector, Microsoft.VisualStudio.TraceCollector, Version=10.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" friendlyName="Test Impact">
</DataCollector>
<DataCollector uri="datacollector://microsoft/TraceDebugger/1.0" assemblyQualifiedName="Microsoft.VisualStudio.TraceCollector.TraceDebuggerDataCollector, Microsoft.VisualStudio.TraceCollector, Version=10.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" friendlyName="IntelliTrace">
</DataCollector>
</DataCollectors>
</AgentRule>
</Execution>
</TestSettings>

11
mustache-sharp.sln
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@ -1,17 +1,10 @@

Microsoft Visual Studio Solution File, Format Version 11.00
# Visual Studio 2010
Microsoft Visual Studio Solution File, Format Version 12.00
# Visual Studio 2012
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "mustache-sharp", "mustache-sharp\mustache-sharp.csproj", "{D71B378F-A4BA-4263-A4F0-07A49A0C528D}"
EndProject
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "mustache-sharp.test", "mustache-sharp.test\mustache-sharp.test.csproj", "{7F607362-0680-4751-B1DC-621219294AE3}"
EndProject
Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution Items", "{25414E49-67E6-4B8D-8AD8-78C70F8992A7}"
ProjectSection(SolutionItems) = preProject
Local.testsettings = Local.testsettings
mustache-sharp.vsmdi = mustache-sharp.vsmdi
TraceAndTestImpact.testsettings = TraceAndTestImpact.testsettings
EndProjectSection
EndProject
Global
GlobalSection(TestCaseManagementSettings) = postSolution
CategoryFile = mustache-sharp.vsmdi

57
mustache-sharp.test/FormatCompilerTester.cs
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@ -471,6 +471,63 @@ Content";
public string Field;
}
/// <summary>
/// If a derived class replaces a property/field in the base class (via new)
/// it should be used, instead of causing an exception or using the base's
/// property/field.
/// </summary>
[TestMethod]
public void TestGenerate_NewPropertyInDerivedClass_UsesDerivedProperty()
{
FormatCompiler compiler = new FormatCompiler();
const string format = @"Hello, {{Value}}!!!";
Generator generator = compiler.Compile(format);
DerivedClass instance = new DerivedClass() { Value = "Derived" };
string result = generator.Render(instance);
Assert.AreEqual("Hello, Derived!!!", result, "The wrong text was generated.");
}
public class BaseClass
{
public int Value { get; set; }
}
public class DerivedClass : BaseClass
{
public DerivedClass()
{
base.Value = 1;
}
public new string Value { get; set; }
}
/// <summary>
/// If a derived class replaces a property/field in the base class (via new)
/// it should be used, instead of causing an exception or using the base's
/// property/field.
/// </summary>
[TestMethod]
public void TestGenerate_NewPropertyInGenericDerivedClass_UsesDerivedProperty()
{
FormatCompiler compiler = new FormatCompiler();
const string format = @"Hello, {{Value}}!!!";
Generator generator = compiler.Compile(format);
DerivedClass<string> instance = new DerivedClass<string>() { Value = "Derived" };
string result = generator.Render(instance);
Assert.AreEqual("Hello, Derived!!!", result, "The wrong text was generated.");
}
public class DerivedClass<T> : BaseClass
{
public DerivedClass()
{
base.Value = 1;
}
public new T Value { get; set; }
}
#endregion
#region Comment

2
mustache-sharp.test/mustache-sharp.test.csproj
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@ -48,7 +48,7 @@
</ItemGroup>
<ItemGroup>
<ProjectReference Include="..\mustache-sharp\mustache-sharp.csproj">
<Project>{D71B378F-A4BA-4263-A4F0-07A49A0C528D}</Project>
<Project>{d71b378f-a4ba-4263-a4f0-07a49a0c528d}</Project>
<Name>mustache-sharp</Name>
</ProjectReference>
</ItemGroup>

6
mustache-sharp.vsmdi
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@ -1,6 +0,0 @@
<?xml version="1.0" encoding="UTF-8"?>
<TestLists xmlns="http://microsoft.com/schemas/VisualStudio/TeamTest/2010">
<TestList name="Lists of Tests" id="8c43106b-9dc1-4907-a29f-aa66a61bf5b6">
<RunConfiguration id="2bc42439-1bb6-4112-9c20-eca1ffcae064" name="Local" storage="local.testsettings" type="Microsoft.VisualStudio.TestTools.Common.TestRunConfiguration, Microsoft.VisualStudio.QualityTools.Common, Version=10.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
</TestList>
</TestLists>

4
mustache-sharp/Properties/AssemblyInfo.cs
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@ -34,6 +34,6 @@ using System.Runtime.CompilerServices;
// You can specify all the values or you can default the Build and Revision Numbers
// by using the '*' as shown below:
// [assembly: AssemblyVersion("1.0.*")]
[assembly: AssemblyVersion("0.2.3.0")]
[assembly: AssemblyFileVersion("0.2.3.0")]
[assembly: AssemblyVersion("0.2.4.0")]
[assembly: AssemblyFileVersion("0.2.4.0")]
[assembly: InternalsVisibleTo("mustache-sharp.test")]

47
mustache-sharp/PropertyDictionary.cs
View File

@ -2,6 +2,7 @@
using System.Collections;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Reflection;
namespace Mustache
@ -40,23 +41,57 @@ namespace Mustache
if (!_cache.TryGetValue(type, out typeCache))
{
typeCache = new Dictionary<string, Func<object, object>>();
BindingFlags flags = BindingFlags.Instance | BindingFlags.Public | BindingFlags.FlattenHierarchy;
foreach (PropertyInfo propertyInfo in type.GetProperties(flags))
var properties = getMembers(type, type.GetProperties(flags).Where(p => !p.IsSpecialName));
foreach (PropertyInfo propertyInfo in properties)
{
if (!propertyInfo.IsSpecialName)
{
typeCache.Add(propertyInfo.Name, i => propertyInfo.GetValue(i, null));
}
typeCache.Add(propertyInfo.Name, i => propertyInfo.GetValue(i, null));
}
foreach (FieldInfo fieldInfo in type.GetFields(flags))
var fields = getMembers(type, type.GetFields(flags).Where(f => !f.IsSpecialName));
foreach (FieldInfo fieldInfo in fields)
{
typeCache.Add(fieldInfo.Name, i => fieldInfo.GetValue(i));
}
_cache.Add(type, typeCache);
}
return typeCache;
}
private static IEnumerable<TMember> getMembers<TMember>(Type type, IEnumerable<TMember> members)
where TMember : MemberInfo
{
var singles = from member in members
group member by member.Name into nameGroup
where nameGroup.Count() == 1
from property in nameGroup
select property;
var multiples = from member in members
group member by member.Name into nameGroup
where nameGroup.Count() > 1
select
(
from member in nameGroup
orderby getDistance(type, member)
select member
).First();
var combined = singles.Concat(multiples);
return combined;
}
private static int getDistance(Type type, MemberInfo memberInfo)
{
int distance = 0;
for (; type != null && type != memberInfo.DeclaringType; type = type.BaseType)
{
++distance;
}
return distance;
}
/// <summary>
/// Gets the underlying instance.
/// </summary>