public void Register(Type to, MappedType mappedType, ResolutionMap resolutionMap)
{
if(activators.ContainsKey(to)) return;
var generator = new TypeGenerator();
var candidates = mappedType.Candidates;
int candidateCount = candidates.Count;
for (int candidateCounter = 0; candidateCounter < candidateCount; candidateCounter++)
{
var candidate = candidates[candidateCounter];
if (activators.ContainsKey(candidate.Type)) continue;
var activatorType = generator.CreateType(context =>
{
context.Named(Guid.NewGuid() + "Builder");
context.InheritFrom<SiegeActivator>();
context.OverrideMethod<SiegeActivator>(activator => activator.Instantiate(null), method => method.WithBody(body =>
{
var instance = body.CreateVariable(to);
var array = body.CreateArray(typeof(object));
array.AssignFromParameter(new MethodParameter(0));
var items = new List<ILocalIndexer>();
var parameters = candidate.Parameters;
var parameterCount = parameters.Count;
for (int i = 0; i < parameterCount; i++)
{
var info = parameters[i];
var arg1 = array.LoadValueAtIndex(info.ParameterType, body, info.Position);
items.Add(arg1);
}
var constructorArgs = new Type[candidate.Parameters.Count];
var candidateParameters = candidate.Parameters;
var candidateParameterCount = candidateParameters.Count;
for (int i = 0; i < candidateParameterCount; i++)
{
var arg = candidateParameters[i];
constructorArgs[arg.Position] = arg.ParameterType;
}
instance.AssignFrom(body.Instantiate(to, constructorArgs, items.OfType<ILocalIndexer, ILocalIndexer>()));
body.Return(instance);
}));
});
var constructor = activatorType.GetConstructor(new Type[] { });
activators.Add(candidate.Type, (SiegeActivator)constructor.Invoke(new object[] { }));
}
}
public virtual void Register(Type to, MappedType mappedType, ResolutionMap resolutionMap)
{
}