///////////////////////////////////////////////////////////////////////
public static string GetPath(
Interpreter interpreter, /* OPTIONAL */
Assembly assembly
) /* CANNOT RETURN NULL */
{
//
// NOTE: Fetch the base directory for the current application
// domain. This will be used to check if the candidate
// assembly paths are underneath it. It is now possible
// to override the value used here via the environment.
//
string path0 = GetAnchorPath();
if (path0 == null)
{
path0 = GlobalState.GetAppDomainBaseDirectory();
}
//
// NOTE: First, try to use the current path to the assembly,
// checking to make sure that it resides underneath the
// base directory for the application domain.
//
string path1 = GetCurrentPath(assembly);
if (PathOps.IsUnderPath(interpreter, path1, path0))
{
return(path1);
}
//
// NOTE: Second, try to use the original path to the assembly,
// checking to make sure that it resides underneath the
// base directory for the application domain.
//
string path2 = GetOriginalPath(assembly);
if (PathOps.IsUnderPath(interpreter, path2, path0))
{
return(path2);
}
//
// NOTE: At this point, we have failed to figure out a path for
// this assembly that actually resides within the current
// application domain. This condition is not impossible;
// however, it should not happen for the core library
// assembly itself.
//
DebugOps.Complain(interpreter, ReturnCode.Error, String.Format(
"could not determine a path for assembly {1} underneath " +
"the application domain path {0}", FormatOps.DisplayPath(
path0), FormatOps.DisplayAssemblyName(assembly)));
//
// NOTE: This method cannot return null; therefore, the legacy
// return value will be used instead (i.e. the current
// path to the assembly).
//
return(path1);
}