private static extern int CreateAssemblyEnum(out IAssemblyEnum ppEnum, AssemblyIdentity.IApplicationContext pAppCtx, AssemblyIdentity.IAssemblyName pName, ASM_CACHE dwFlags, IntPtr pvReserved);
// Internal for testing. internal static IEnumerable <AssemblyIdentity.IAssemblyName> GetAssemblyObjects( AssemblyIdentity.IAssemblyName partialNameFilter, Func <ProcessorArchitecture, bool> architectureFilter) { IAssemblyEnum enumerator; AssemblyIdentity.IApplicationContext applicationContext = null; int hr = CreateAssemblyEnum(out enumerator, applicationContext, partialNameFilter, ASM_CACHE.GAC, IntPtr.Zero); if (hr == S_FALSE) { // no assembly found yield break; } else if (hr != S_OK) { Exception e = Marshal.GetExceptionForHR(hr); if (e is FileNotFoundException) { // invalid assembly name: yield break; } else if (e != null) { throw e; } else { // for some reason it might happen that CreateAssemblyEnum returns non-zero HR that doesn't correspond to any exception: throw new ArgumentException(CodeAnalysisResources.InvalidAssemblyName); } } while (true) { AssemblyIdentity.IAssemblyName nameObject; hr = enumerator.GetNextAssembly(out applicationContext, out nameObject, 0); if (hr != 0) { if (hr < 0) { Marshal.ThrowExceptionForHR(hr); } break; } if (architectureFilter != null) { var assemblyArchitecture = AssemblyIdentity.GetProcessorArchitecture(nameObject); if (!architectureFilter(assemblyArchitecture)) { continue; } } yield return(nameObject); } }