public DynamicInstructionN(Type delegateType, CallSite site) {
var methodInfo = delegateType.GetMethod("Invoke");
_target = ReflectedCaller.Create(methodInfo);
_targetField = site.GetType().GetField("Target");
_site = site;
_argCount = methodInfo.GetParameters().Length;
}
private bool TrackUsage(object[] args) {
bool shouldOptimize;
_hitCount++;
shouldOptimize = false;
bool forceCaller = false;
if (_hitCount <= 100 && _caller == null) {
foreach (object o in args) {
// can't pass Missing.Value via reflection, use a ReflectedCaller
if (o == Missing.Value) {
forceCaller = true;
}
}
}
if (_hitCount > 100) {
shouldOptimize = true;
} else if ((_hitCount > 5 || forceCaller) && _caller == null) {
_caller = ReflectedCaller.Create(_mi);
}
return shouldOptimize;
}
private object InvokeMethod(object instance, object[] parameters) {
if (_caller == null) {
_caller = ReflectedCaller.Create(_method);
}
if (instance == null) {
return _caller.Invoke(parameters);
} else {
return _caller.InvokeInstance(instance, parameters);
}
}