private static DkmClrDebuggerVisualizerAttribute[] GetDebuggerVisualizerAttributes(System.Type type)
{
var attributesData = type.GetCustomAttributesData().Where(data => data.AttributeType == typeof(DebuggerVisualizerAttribute));
if (attributesData.Count() == 0)
{
return null;
}
var builder = ArrayBuilder<DkmClrDebuggerVisualizerAttribute>.GetInstance();
foreach (var attributeData in attributesData)
{
var argValueTypeBuilder = ArrayBuilder<System.Type>.GetInstance();
foreach (var typedArg in attributeData.ConstructorArguments)
{
var argumentType = typedArg.ArgumentType.FullName;
System.Type argValueType = null;
if (string.Equals(argumentType, "System.String", System.StringComparison.Ordinal))
{
var typeName = (string)typedArg.Value;
var assembly = type.Assembly;
argValueType = assembly.GetType(typeName);
}
else if (string.Equals(argumentType, "System.Type", System.StringComparison.Ordinal))
{
argValueType = typedArg.Value as System.Type;
}
if (argValueType != null)
{
argValueTypeBuilder.Add(argValueType);
}
else
{
Debug.Fail("Failed to resolve the type of the arguments for DebuggerVisualizer attribute.");
return null;
}
}
// Attribute not recognized.
if (argValueTypeBuilder.Count == 0)
{
Debug.Fail("Failed to retrieve the visualizer types from a [DebuggerVisualizer] attribute");
return null;
}
string uiSideVisualizerTypeName = argValueTypeBuilder[0].FullName;
string uiSideVisualizerAssemblyName = argValueTypeBuilder[0].Assembly.FullName;
string debuggeeSideVisualizerTypeName;
string debuggeeSideVisualizerAssemblyName;
if (argValueTypeBuilder.Count > 1)
{
System.Type debuggeeSideType = argValueTypeBuilder[1];
debuggeeSideVisualizerTypeName = debuggeeSideType.FullName;
debuggeeSideVisualizerAssemblyName = debuggeeSideType.Assembly.FullName;
}
else
{
debuggeeSideVisualizerTypeName = "Microsoft.VisualStudio.DebuggerVisualizers.VisualizerObjectSource";
var vsVersion = System.Environment.GetEnvironmentVariable("VisualStudioVersion") ?? "14.0";
debuggeeSideVisualizerAssemblyName = $"Microsoft.VisualStudio.DebuggerVisualizers, Version={vsVersion}.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a";
}
string visualizerDescription = uiSideVisualizerTypeName;
argValueTypeBuilder.Free();
// Try to get the Visualizer Description. If no description is specified, we will fall back to the Visualizer Type Name.
foreach (var namedArg in attributeData.NamedArguments)
{
if (namedArg.MemberInfo.Name == "Description")
{
visualizerDescription = (string)namedArg.TypedValue.Value;
break;
}
}
builder.Add(new DkmClrDebuggerVisualizerAttribute(
targetMember: null,
uiSideVisualizerTypeName: uiSideVisualizerTypeName,
uiSideVisualizerAssemblyName: uiSideVisualizerAssemblyName,
uiSideVisualizerAssemblyLocation: Evaluation.DkmClrCustomVisualizerAssemblyLocation.Unknown,
debuggeeSideVisualizerTypeName: debuggeeSideVisualizerTypeName,
debuggeeSideVisualizerAssemblyName: debuggeeSideVisualizerAssemblyName,
visualizerDescription: visualizerDescription));
}
return builder.ToArrayAndFree();
}
private static DkmClrDebuggerDisplayAttribute GetDebuggerDisplayAttribute(System.Type type)
{
var attributeData = type.GetCustomAttributesData().FirstOrDefault(data => data.AttributeType == typeof(DebuggerDisplayAttribute));
if (attributeData == null)
{
return null;
}
return new DkmClrDebuggerDisplayAttribute(type.AssemblyQualifiedName)
{
Name = (string)attributeData.NamedArguments.SingleOrDefault(arg => arg.MemberName == "Name").TypedValue.Value,
Value = (string)attributeData.ConstructorArguments.Single().Value,
TypeName = (string)attributeData.NamedArguments.SingleOrDefault(arg => arg.MemberName == "Type").TypedValue.Value,
};
}
