private static bool IsNullable(Type type)
{
return TypeCoercionUtility.GetTypeInfo(type).IsGenericType && (typeof(Nullable<>).Equals (type.GetGenericTypeDefinition()));
}
private static bool IsNullable(Type type)
{
return type.IsGenericType && (typeof(Nullable<>) == type.GetGenericTypeDefinition());
}
public static MethodInfo GetMethod (Type type, MethodInfo method)
{
if (!IsValidGetMethodType (type))
throw new ArgumentException ("type is not TypeBuilder but " + type.GetType (), "type");
if (type is TypeBuilder && type.ContainsGenericParameters)
type = type.MakeGenericType (type.GetGenericArguments ());
if (!type.IsGenericType)
throw new ArgumentException ("type is not a generic type", "type");
if (!method.DeclaringType.IsGenericTypeDefinition)
throw new ArgumentException ("method declaring type is not a generic type definition", "method");
if (method.DeclaringType != type.GetGenericTypeDefinition ())
throw new ArgumentException ("method declaring type is not the generic type definition of type", "method");
if (method == null)
throw new NullReferenceException (); //MS raises this instead of an ArgumentNullException
MethodInfo res = type.GetMethod (method);
if (res == null)
throw new ArgumentException (String.Format ("method {0} not found in type {1}", method.Name, type));
return res;
}
public static FieldInfo GetField (Type type, FieldInfo field)
{
if (!type.IsGenericType)
throw new ArgumentException ("Type is not a generic type", "type");
if (type.IsGenericTypeDefinition)
throw new ArgumentException ("Type cannot be a generic type definition", "type");
if (field is FieldOnTypeBuilderInst)
throw new ArgumentException ("The specified field must be declared on a generic type definition.", "field");
if (field.DeclaringType != type.GetGenericTypeDefinition ())
throw new ArgumentException ("field declaring type is not the generic type definition of type", "method");
FieldInfo res = type.GetField (field);
if (res == null)
throw new System.Exception ("field not found");
else
return res;
}
public static ConstructorInfo GetConstructor (Type type, ConstructorInfo constructor)
{
/*FIXME I would expect the same checks of GetMethod here*/
if (type == null)
throw new ArgumentException ("Type is not generic", "type");
if (!type.IsGenericType)
throw new ArgumentException ("Type is not a generic type", "type");
if (type.IsGenericTypeDefinition)
throw new ArgumentException ("Type cannot be a generic type definition", "type");
if (constructor == null)
throw new NullReferenceException (); //MS raises this instead of an ArgumentNullException
if (!constructor.DeclaringType.IsGenericTypeDefinition)
throw new ArgumentException ("constructor declaring type is not a generic type definition", "constructor");
if (constructor.DeclaringType != type.GetGenericTypeDefinition ())
throw new ArgumentException ("constructor declaring type is not the generic type definition of type", "constructor");
ConstructorInfo res = type.GetConstructor (constructor);
if (res == null)
throw new ArgumentException ("constructor not found");
return res;
}