/// <summary>
/// Binds a name to type.
/// </summary>
/// <param name="typeName">The name of the type to bind.</param>
/// <param name="debugContext">The debug context to log to.</param>
/// <returns>
/// The type that the name has been bound to, or null if the type could not be resolved.
/// </returns>
/// <exception cref="System.ArgumentNullException">The typeName argument is null.</exception>
public override Type BindToType(string typeName, DebugContext debugContext = null)
{
if (typeName == null)
{
throw new ArgumentNullException("typeName");
}
Type result;
lock (NAMETOTYPE_LOCK)
{
if (typeMap.TryGetValue(typeName, out result) == false)
{
result = this.ParseTypeName(typeName, debugContext);
if (result == null && debugContext != null)
{
debugContext.LogWarning("Failed deserialization type lookup for type name '" + typeName + "'.");
}
// We allow null values on purpose so we don't have to keep re-performing invalid name lookups
typeMap.Add(typeName, result);
}
}
return(result);
}
/// <summary>
/// Bind a type to a name.
/// </summary>
/// <param name="type">The type to bind.</param>
/// <param name="debugContext">The debug context to log to.</param>
/// <returns>
/// The name that the type has been bound to.
/// </returns>
/// <exception cref="System.ArgumentNullException">The type argument is null.</exception>
public override string BindToName(Type type, DebugContext debugContext = null)
{
if (type == null)
{
throw new ArgumentNullException("type");
}
string result;
lock (TYPETONAME_LOCK)
{
if (nameMap.TryGetValue(type, out result) == false)
{
if (type.IsGenericType)
{
// We track down all assemblies in the generic type definition
List <Type> toResolve = type.GetGenericArguments().ToList();
HashSet <Assembly> assemblies = new HashSet <Assembly>();
while (toResolve.Count > 0)
{
var t = toResolve[0];
if (t.IsGenericType)
{
toResolve.AddRange(t.GetGenericArguments());
}
assemblies.Add(t.Assembly);
toResolve.RemoveAt(0);
}
result = type.FullName + ", " + type.Assembly.GetName().Name;
foreach (var ass in assemblies)
{
result = result.Replace(ass.FullName, ass.GetName().Name);
}
}
else if (type.IsDefined(typeof(CompilerGeneratedAttribute), false))
{
result = type.FullName + ", " + type.Assembly.GetName().Name;
}
else
{
result = type.FullName + ", " + type.Assembly.GetName().Name;
}
nameMap.Add(type, result);
}
}
return(result);
}
/// <summary> /// Binds a name to a type. /// </summary> /// <param name="typeName">The name of the type to bind.</param> /// <param name="debugContext">The debug context to log to.</param> /// <returns>The type that the name has been bound to, or null if the type could not be resolved.</returns> public abstract Type BindToType(string typeName, DebugContext debugContext = null);
/// <summary> /// Bind a type to a name. /// </summary> /// <param name="type">The type to bind.</param> /// <param name="debugContext">The debug context to log to.</param> /// <returns>The name that the type has been bound to.</returns> public abstract string BindToName(Type type, DebugContext debugContext = null);
private Type ParseGenericAndOrArrayType(string typeName, DebugContext debugContext)
{
string actualTypeName;
List <string> genericArgNames;
bool isGeneric;
bool isArray;
int arrayRank;
if (!TryParseGenericAndOrArrayTypeName(typeName, out actualTypeName, out isGeneric, out genericArgNames, out isArray, out arrayRank))
{
return(null);
}
Type type = this.BindToType(actualTypeName, debugContext);
if (type == null)
{
return(null);
}
if (isGeneric)
{
if (!type.IsGenericType)
{
return(null);
}
List <Type> args = genericArgTypesList;
args.Clear();
for (int i = 0; i < genericArgNames.Count; i++)
{
Type arg = this.BindToType(genericArgNames[i], debugContext);
if (arg == null)
{
return(null);
}
args.Add(arg);
}
var argsArray = args.ToArray();
if (!type.AreGenericConstraintsSatisfiedBy(argsArray))
{
if (debugContext != null)
{
string argsStr = "";
foreach (var arg in args)
{
if (argsStr != "")
{
argsStr += ", ";
}
argsStr += arg.GetNiceFullName();
}
debugContext.LogWarning("Deserialization type lookup failure: The generic type arguments '" + argsStr + "' do not satisfy the generic constraints of generic type definition '" + type.GetNiceFullName() + "'. All this parsed from the full type name string: '" + typeName + "'");
}
return(null);
}
type = type.MakeGenericType(argsArray);
}
if (isArray)
{
type = type.MakeArrayType(arrayRank);
}
return(type);
}
private Type ParseTypeName(string typeName, DebugContext debugContext)
{
Type type;
lock (ASSEMBLY_LOOKUP_LOCK)
{
// Look for custom defined type name lookups defined with the BindTypeNameToTypeAttribute.
if (customTypeNameToTypeBindings.TryGetValue(typeName, out type))
{
return(type);
}
}
// Let's try it the traditional .NET way
type = Type.GetType(typeName);
if (type != null)
{
return(type);
}
// Generic/array type name handling
type = ParseGenericAndOrArrayType(typeName, debugContext);
if (type != null)
{
return(type);
}
string typeStr, assemblyStr;
ParseName(typeName, out typeStr, out assemblyStr);
if (!string.IsNullOrEmpty(typeStr))
{
lock (ASSEMBLY_LOOKUP_LOCK)
{
// Look for custom defined type name lookups defined with the BindTypeNameToTypeAttribute.
if (customTypeNameToTypeBindings.TryGetValue(typeStr, out type))
{
return(type);
}
}
Assembly assembly;
// Try to load from the named assembly
if (assemblyStr != null)
{
lock (ASSEMBLY_LOOKUP_LOCK)
{
assemblyNameLookUp.TryGetValue(assemblyStr, out assembly);
}
if (assembly == null)
{
try
{
assembly = Assembly.Load(assemblyStr);
}
catch { }
}
if (assembly != null)
{
try
{
type = assembly.GetType(typeStr);
}
catch { } // Assembly is invalid
if (type != null)
{
return(type);
}
}
}
// Try to check all assemblies for the type string
var assemblies = AppDomain.CurrentDomain.GetAssemblies();
for (int i = 0; i < assemblies.Length; i++)
{
assembly = assemblies[i];
try
{
type = assembly.GetType(typeStr, false);
}
catch { } // Assembly is invalid
if (type != null)
{
return(type);
}
}
}
//type = AssemblyUtilities.GetTypeByCachedFullName(typeStr);
//if (type != null) return type;
return(null);
}