public bool CanSatisfy(DependencyCollection dependencies, PluginGraph graph)
{
foreach (var parameter in Parameters)
{
var type = parameter.ParameterType;
if (type.IsGenericEnumerable())
{
// Because graph.HasFamily returns false for IEnumerable<T>,
// we unwrap the generic argument and pass that instead.
type = type.GenericTypeArguments[0];
}
if (graph.HasFamily(type))
{
continue;
}
if (dependencies.Any(dep => dep.Type == type))
{
continue;
}
return(false);
}
return(true);
}
// ASP.NET expects registered services to be considered when selecting a ctor, SM doesn't by default.
public ConstructorInfo Find(Type pluggedType, DependencyCollection dependencies, PluginGraph graph) =>
pluggedType.GetTypeInfo()
.DeclaredConstructors
.Where(ctor => ctor.IsConstructor && !ctor.IsPrivate) // IsConstructor is false for static constructors
.Select(ctor => new { Constructor = ctor, Parameters = ctor.GetParameters() })
.Where(x => x.Parameters.All(param => graph.HasFamily(param.ParameterType) || dependencies.Any(dep => dep.Type == param.ParameterType)))
.OrderByDescending(x => x.Parameters.Length)
.Select(x => x.Constructor)
.FirstOrDefault();