/// <summary>
/// Determine whether this assembly has been granted access to <paramref name="potentialGiverOfAccess"></paramref>.
/// Assumes that the public key has been determined. The result will be cached.
/// </summary>
/// <param name="potentialGiverOfAccess"></param>
/// <returns></returns>
/// <remarks></remarks>
protected IVTConclusion MakeFinalIVTDetermination(AssemblySymbol potentialGiverOfAccess)
{
IVTConclusion result;
if (AssembliesToWhichInternalAccessHasBeenDetermined.TryGetValue(potentialGiverOfAccess, out result))
{
return(result);
}
result = IVTConclusion.NoRelationshipClaimed;
//EDMAURER returns an empty list if there was no IVT attribute at all for the given name
//A name w/o a key is represented by a list with an entry that is empty
IEnumerable <ImmutableArray <byte> > publicKeys = potentialGiverOfAccess.GetInternalsVisibleToPublicKeys(this.Name);
//EDMAURER look for one that works, if none work, then return the failure for the last one examined.
foreach (var key in publicKeys)
{
if (result == IVTConclusion.Match || result == IVTConclusion.OneSignedOneNot)
{
break;
}
result = PerformIVTCheck(key, potentialGiverOfAccess.Identity);
Debug.Assert(result != IVTConclusion.NoRelationshipClaimed);
}
AssembliesToWhichInternalAccessHasBeenDetermined.TryAdd(potentialGiverOfAccess, result);
return(result);
}
protected IVTConclusion MakeFinalIVTDetermination(AssemblySymbol potentialGiverOfAccess)
{
IVTConclusion result;
if (
AssembliesToWhichInternalAccessHasBeenDetermined.TryGetValue(
potentialGiverOfAccess,
out result
)
)
{
return(result);
}
result = IVTConclusion.NoRelationshipClaimed;
// returns an empty list if there was no IVT attribute at all for the given name
// A name w/o a key is represented by a list with an entry that is empty
IEnumerable <ImmutableArray <byte> > publicKeys =
potentialGiverOfAccess.GetInternalsVisibleToPublicKeys(this.Name);
// We have an easy out here. Suppose the assembly wanting access is
// being compiled as a module. You can only strong-name an assembly. So we are going to optimistically
// assume that it is going to be compiled into an assembly with a matching strong name, if necessary.
if (publicKeys.Any() && this.IsNetModule())
{
return(IVTConclusion.Match);
}
// look for one that works, if none work, then return the failure for the last one examined.
foreach (var key in publicKeys)
{
// We pass the public key of this assembly explicitly so PerformIVTCheck does not need
// to get it from this.Identity, which would trigger an infinite recursion.
result = potentialGiverOfAccess.Identity.PerformIVTCheck(this.PublicKey, key);
Debug.Assert(result != IVTConclusion.NoRelationshipClaimed);
if (result == IVTConclusion.Match || result == IVTConclusion.OneSignedOneNot)
{
break;
}
}
AssembliesToWhichInternalAccessHasBeenDetermined.TryAdd(potentialGiverOfAccess, result);
return(result);
}
