public object create(Type type, List <object> constructorArgs)
{
var key = callKey(type, "<new>", constructorArgs);
var activator = (ObjectActivator)Context.Cache.GetOrAdd(key, k => {
var argsCount = constructorArgs?.Count ?? 0;
var args = constructorArgs;
var ctors = type.GetConstructors()
.Where(x => x.GetParameters().Length == argsCount).ToArray();
if (ctors.Length == 0)
{
var argTypes = string.Join(",", args.Select(x => x?.GetType().Name ?? "null"));
throw new NotSupportedException($"Constructor {Context.DefaultMethods.typeQualifiedName(type)}({argTypes}) does not exist");
}
ConstructorInfo targetCtor = null;
if (ctors.Length > 1)
{
var candidates = 0;
foreach (var ctor in ctors)
{
var match = true;
var ctorParams = ctor.GetParameters();
if (args != null)
{
for (var i = 0; i < args.Count; i++)
{
var arg = args[i];
if (arg == null)
{
continue;
}
match = ctorParams[i].ParameterType == arg.GetType();
if (!match)
{
break;
}
}
}
if (match)
{
targetCtor = ctor;
candidates++;
}
}
if (targetCtor == null || candidates != 1)
{
var argTypes = args != null ? string.Join(",", args.Select(x => x?.GetType().Name ?? "null")) : "";
throw new NotSupportedException($"Could not resolve ambiguous constructor {Context.DefaultMethods.typeQualifiedName(type)}({argTypes})");
}
}
else
{
targetCtor = ctors[0];
}
return(targetCtor.GetActivator());
});
return(activator(constructorArgs?.ToArray() ?? TypeConstants.EmptyObjectArray));
}
