public static MemberInfo ConvertToClassMI(Type t, MemberInfo mi)
{
Type reflectedType = mi.ReflectedType;
if (!reflectedType.IsInterface)
{
return(mi);
}
Cachetable cachetable = (Cachetable)Cache.Get(t);
if (cachetable != null)
{
MemberInfo info = (MemberInfo)cachetable.Get(mi);
if (info != null)
{
return(info);
}
}
MethodInfo info2 = (MethodInfo)mi;
MethodInfo nv = null;
InterfaceMapping interfaceMap = t.GetInterfaceMap(reflectedType);
if (interfaceMap.TargetMethods == null)
{
throw new InvalidCastException();
}
for (int i = 0; i < interfaceMap.TargetMethods.Length; i++)
{
if (interfaceMap.InterfaceMethods[i] == info2)
{
nv = interfaceMap.TargetMethods[i];
break;
}
}
if (cachetable == null)
{
cachetable = (Cachetable)Cache.Set(t, new Cachetable());
}
cachetable.Reset(mi, nv);
return(nv);
}
public static MemberInfo ConvertToClassMI(Type t, MemberInfo mi)
{
// get reflected type
Type reflectType = mi.ReflectedType;
if (!reflectType.IsInterface)
{
return(mi);
}
// First, try to hit the cache. We look for the cache entry
// for this type, and it should be a little cache-table
// of it's own. In that cache-table, we
Cachetable subcache = (Cachetable)Cache.Get(t);
if (subcache != null)
{
MemberInfo cmi = (MemberInfo)subcache.Get(mi);
if (cmi != null)
{
return(cmi);
}
}
DBG.Assert(t != null, "class type is null");
DBG.Assert(!t.IsInterface, " class type is actually an interface");
MethodInfo minfo = (MethodInfo)mi;
MethodInfo clsMethodInfo = null;
// minfo is an interface member info, map it to class memeber info
// get the interface map
DBG.Info(DBG.SC, "ReflectionCache: Looking up " + reflectType + " on " + t);
InterfaceMapping imap = t.GetInterfaceMap(reflectType);
if (imap.TargetMethods == null)
{
throw new InvalidCastException();
}
for (int i = 0; i < imap.TargetMethods.Length; i++)
{
if (imap.InterfaceMethods[i] == minfo)
{
clsMethodInfo = imap.TargetMethods[i];
break;
}
}
DBG.Assert(clsMethodInfo != null, "Failed to map interface method to class method");
DBG.Assert(!clsMethodInfo.ReflectedType.IsInterface,
"Failed to map interface method to class method");
// Store the result in the cache:
if (subcache == null)
{
subcache = (Cachetable)Cache.Set(t, new Cachetable());
}
subcache.Reset(mi, clsMethodInfo);
return((MemberInfo)clsMethodInfo);
}
// We cache this by mapping MemberInfo to MemberInfo in our
// cache. Note that because assemblies can never be unloaded,
// there's no reason to flush this cache (we won't be holding
// anything alive longer than it would have been alive anyway.
public static MemberInfo ConvertToInterfaceMI(MemberInfo mi)
{
// First, try to hit the cache:
MemberInfo cmi = (MemberInfo)Cache.Get(mi);
if (cmi != null)
{
return(cmi);
}
// Failed to hit the cache, do the lookup.
// TODO: clean this up a bit.
// TODO: Deal with non-methodInfo objects (work off MethodBase)
MethodInfo minfo = mi as MethodInfo;
if (minfo == null)
{
return(null);
}
MethodInfo intfMethodInfo = null;
// check for AutoDone
Type reflectType = minfo.ReflectedType;
if (reflectType.IsInterface)
{
intfMethodInfo = minfo;
}
else
{
// get all the interfaces implemented by the class
Type[] rgInterfaces = reflectType.GetInterfaces();
if (rgInterfaces == null)
{
return(null);
}
// iterate through all the interfaces
for (int ii = 0; ii < rgInterfaces.Length; ii++)
{
// get interface mapping for each interface
InterfaceMapping imap = reflectType.GetInterfaceMap(rgInterfaces[ii]);
if (imap.TargetMethods == null)
{
continue;
}
// check if a class method in this inteface map matches
for (int j = 0; j < imap.TargetMethods.Length; j++)
{
// see if the class method matches
if (imap.TargetMethods[j] == minfo)
{
// grab the interface method
intfMethodInfo = imap.InterfaceMethods[j];
break;
}
}
if (intfMethodInfo != null)
{
break;
}
}
}
DBG.Assert(intfMethodInfo == null ||
intfMethodInfo.ReflectedType.IsInterface,
"Failed to map class method to interface method");
Cache.Reset(mi, intfMethodInfo);
return((MemberInfo)intfMethodInfo);
}