GetReferencedAssemblies & GetDirectlyReferencedAssemblies

GetReferencedAssemblies.cs

    static class Utils
    {
        static IEnumerable<Assembly> GetDirectlyReferencedAssemblies(Assembly startAssembly)
        {
            return startAssembly.GetReferencedAssemblies()
                .Select(TryLoad)
                .Where(a => a != null && !a.GlobalAssemblyCache);
        }

        static IEnumerable<Assembly> GetReferencedAssemblies(Assembly startAssembly)
        {
            var alreadyTraversed = new HashSet<Assembly>();
            var assembliesToTraverse = new Queue<Assembly>();

            assembliesToTraverse.Enqueue(startAssembly);

            while (assembliesToTraverse.Count != 0)
            {
                var assembly = assembliesToTraverse.Dequeue();

                if (alreadyTraversed.Contains(assembly))
                {
                    continue;
                }

                yield return assembly;
                alreadyTraversed.Add(assembly);
                
                foreach (var referencedAssembly in assembly.GetReferencedAssemblies()
                    .Select(TryLoad)
                    .Where(a => a != null && !a.GlobalAssemblyCache && !alreadyTraversed.Contains(a)))
                {
                    assembliesToTraverse.Enqueue(referencedAssembly);
                }
            }
        }

        static Assembly TryLoad(AssemblyName name)
        {
            try
            {
                return Assembly.Load(name);
            }
            catch (FileNotFoundException)
            {
                return null;
            }
            catch (FileLoadException)
            {
                return null;
            }
            catch (BadImageFormatException)
            {
                return null;
            }
        }
    }