public DynamicInstructionN(Type delegateType, CallSite site) {
var methodInfo = delegateType.GetMethod("Invoke");
var parameters = methodInfo.GetParameters();
_target = CallInstruction.Create(methodInfo, parameters);
_targetField = site.GetType().GetField("Target");
_site = site;
_argCount = parameters.Length;
}
public DynamicInstructionN(Type delegateType, CallSite site) {
var methodInfo = delegateType.GetMethod("Invoke");
var parameters = methodInfo.GetParameters();
// <Delegate>.Invoke is ok to target by a delegate in partial trust (SecurityException is not thrown):
_targetInvocationInstruction = CallInstruction.Create(methodInfo, parameters);
_site = site;
_argumentCount = parameters.Length - 1;
_targetDelegate = site.GetType().GetInheritedFields("Target").First().GetValue(site);
}
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 = CallInstruction.Create(_mi, _mi.GetParameters());
}
return shouldOptimize;
}
