private static CodeFile LoadCode(
string path,
string sourceDir,
FixedList <string> rootNamespace)
{
var relativeDirectory = Path.GetDirectoryName(Path.GetRelativePath(sourceDir, path)) ?? throw new InvalidOperationException("Null directory name");
var ns = rootNamespace.Concat(relativeDirectory.SplitOrEmpty(Path.DirectorySeparatorChar)).ToFixedList();
return(CodeFile.Load(path, ns));
}
