internal static unsafe string GetAssemblyLocation(FusionAssemblyIdentity.IAssemblyName nameObject)
{
// NAME | VERSION | CULTURE | PUBLIC_KEY_TOKEN | RETARGET | PROCESSORARCHITECTURE
string fullName = FusionAssemblyIdentity.GetDisplayName(nameObject, FusionAssemblyIdentity.ASM_DISPLAYF.FULL);
fixed(char *p = new char[MAX_PATH])
{
ASSEMBLY_INFO info = new ASSEMBLY_INFO
{
cbAssemblyInfo = (uint)Marshal.SizeOf(typeof(ASSEMBLY_INFO)),
pszCurrentAssemblyPathBuf = p,
cchBuf = (uint)MAX_PATH
};
IAssemblyCache assemblyCacheObject;
CreateAssemblyCache(out assemblyCacheObject, 0);
assemblyCacheObject.QueryAssemblyInfo(0, fullName, ref info);
Debug.Assert(info.pszCurrentAssemblyPathBuf != null);
Debug.Assert(info.pszCurrentAssemblyPathBuf[info.cchBuf - 1] == '\0');
var result = Marshal.PtrToStringUni((IntPtr)info.pszCurrentAssemblyPathBuf, (int)info.cchBuf - 1);
Debug.Assert(result.IndexOf('\0') == -1);
return(result);
}
}
/// <summary>
/// Converts <see cref="IAssemblyName"/> to <see cref="AssemblyName"/> with possibly missing name components.
/// </summary>
/// <returns>
/// An <see cref="AssemblyName"/> whose fields are be null if not present in <paramref name="nameObject"/>.
/// </returns>
internal static AssemblyName ToAssemblyName(FusionAssemblyIdentity.IAssemblyName nameObject)
{
var result = new AssemblyName();
result.Name = FusionAssemblyIdentity.GetName(nameObject);
result.Version = FusionAssemblyIdentity.GetVersion(nameObject);
var cultureName = FusionAssemblyIdentity.GetCulture(nameObject);
result.CultureInfo = (cultureName != null) ? new CultureInfo(cultureName) : null;
byte[] publicKey = FusionAssemblyIdentity.GetPublicKey(nameObject);
if (publicKey != null && publicKey.Length != 0)
{
result.SetPublicKey(publicKey);
}
else
{
result.SetPublicKeyToken(FusionAssemblyIdentity.GetPublicKeyToken(nameObject));
}
result.Flags = FusionAssemblyIdentity.GetFlags(nameObject);
result.ContentType = FusionAssemblyIdentity.GetContentType(nameObject);
return(result);
}
private static IEnumerable <AssemblyIdentity> GetAssemblyIdentities(
FusionAssemblyIdentity.IAssemblyName partialName,
ImmutableArray <ProcessorArchitecture> architectureFilter)
{
return(from nameObject in GetAssemblyObjects(partialName, architectureFilter)
select FusionAssemblyIdentity.ToAssemblyIdentity(nameObject));
}
public override AssemblyIdentity ResolvePartialName(
string displayName,
out string location,
ImmutableArray <ProcessorArchitecture> architectureFilter,
CultureInfo preferredCulture)
{
if (displayName == null)
{
throw new ArgumentNullException(nameof(displayName));
}
location = null;
FusionAssemblyIdentity.IAssemblyName nameObject = FusionAssemblyIdentity.ToAssemblyNameObject(displayName);
if (nameObject == null)
{
return(null);
}
var candidates = GetAssemblyObjects(nameObject, architectureFilter);
string cultureName = (preferredCulture != null && !preferredCulture.IsNeutralCulture) ? preferredCulture.Name : null;
var bestMatch = FusionAssemblyIdentity.GetBestMatch(candidates, cultureName);
if (bestMatch == null)
{
return(null);
}
location = GetAssemblyLocation(bestMatch);
return(FusionAssemblyIdentity.ToAssemblyIdentity(bestMatch));
}
private static extern int CreateAssemblyEnum(
out IAssemblyEnum ppEnum,
FusionAssemblyIdentity.IApplicationContext pAppCtx,
FusionAssemblyIdentity.IAssemblyName pName,
ASM_CACHE dwFlags,
IntPtr pvReserved
);
// Internal for testing.
internal static IEnumerable <FusionAssemblyIdentity.IAssemblyName> GetAssemblyObjects(
FusionAssemblyIdentity.IAssemblyName partialNameFilter,
ProcessorArchitecture[] architectureFilter)
{
IAssemblyEnum enumerator;
int hr = CreateAssemblyEnum(out enumerator, null, partialNameFilter, ASM_CACHE.GAC, IntPtr.Zero);
if (hr == S_FALSE)
{
// no assembly found
yield break;
}
if (hr != S_OK)
{
Exception e = Marshal.GetExceptionForHR(hr);
if (e is FileNotFoundException)
{
// invalid assembly name:
yield break;
}
if (e != null)
{
throw e;
}
// for some reason it might happen that CreateAssemblyEnum returns non-zero HR that doesn't correspond to any exception:
throw new ArgumentException("Invalid assembly name");
}
while (true)
{
FusionAssemblyIdentity.IAssemblyName nameObject;
FusionAssemblyIdentity.IApplicationContext applicationContext;
hr = enumerator.GetNextAssembly(out applicationContext, out nameObject, 0);
if (hr != 0)
{
if (hr < 0)
{
Marshal.ThrowExceptionForHR(hr);
}
break;
}
if (architectureFilter != null)
{
var assemblyArchitecture = FusionAssemblyIdentity.GetProcessorArchitecture(nameObject);
if (!architectureFilter.Contains(assemblyArchitecture))
{
continue;
}
}
yield return(nameObject);
}
}
/// <summary>
/// Looks up specified partial assembly name in the GAC and returns the best matching full assembly name/>.
/// </summary>
/// <param name="displayName">The display name of an assembly</param>
/// <param name="location">Full path name of the resolved assembly</param>
/// <param name="architectureFilter">The optional processor architecture</param>
/// <param name="preferredCulture">The optional preferred culture information</param>
/// <returns>An assembly identity or null, if <paramref name="displayName"/> can't be resolved.</returns>
/// <exception cref="ArgumentNullException"><paramref name="displayName"/> is null.</exception>
public static unsafe string ResolvePartialName(
string displayName,
out string location,
ProcessorArchitecture[] architectureFilter = null,
CultureInfo preferredCulture = null)
{
if (displayName == null)
{
throw new ArgumentNullException("displayName");
}
location = null;
FusionAssemblyIdentity.IAssemblyName nameObject = FusionAssemblyIdentity.ToAssemblyNameObject(displayName);
if (nameObject == null)
{
return(null);
}
var candidates = GetAssemblyObjects(nameObject, architectureFilter);
string cultureName = (preferredCulture != null && !preferredCulture.IsNeutralCulture) ? preferredCulture.Name : null;
var bestMatch = FusionAssemblyIdentity.GetBestMatch(candidates, cultureName);
if (bestMatch == null)
{
return(null);
}
string fullName = FusionAssemblyIdentity.GetDisplayName(bestMatch, FusionAssemblyIdentity.ASM_DISPLAYF.FULL);
fixed(char *p = new char[MAX_PATH])
{
ASSEMBLY_INFO info = new ASSEMBLY_INFO
{
cbAssemblyInfo = (uint)Marshal.SizeOf(typeof(ASSEMBLY_INFO)),
pszCurrentAssemblyPathBuf = p,
cchBuf = (uint)MAX_PATH
};
IAssemblyCache assemblyCacheObject;
CreateAssemblyCache(out assemblyCacheObject, 0);
assemblyCacheObject.QueryAssemblyInfo(0, fullName, ref info);
Debug.Assert(info.pszCurrentAssemblyPathBuf != null);
Debug.Assert(info.pszCurrentAssemblyPathBuf[info.cchBuf - 1] == '\0');
var result = Marshal.PtrToStringUni((IntPtr)info.pszCurrentAssemblyPathBuf, (int)info.cchBuf - 1);
Debug.Assert(result.IndexOf('\0') == -1);
location = result;
}
return(fullName);
}
private static AssemblyIdentity ResolvePartialName(
string displayName,
Func <ProcessorArchitecture, bool> architectureFilter,
CultureInfo preferredCulture,
out string location,
bool resolveLocation)
{
if (displayName == null)
{
throw new ArgumentNullException("displayName");
}
location = null;
FusionAssemblyIdentity.IAssemblyName nameObject = FusionAssemblyIdentity.ToAssemblyNameObject(displayName);
if (nameObject == null)
{
return(null);
}
var candidates = GetAssemblyObjects(nameObject, architectureFilter);
string cultureName = (preferredCulture != null && !preferredCulture.IsNeutralCulture) ? preferredCulture.Name : null;
var bestMatch = FusionAssemblyIdentity.GetBestMatch(candidates, cultureName);
if (bestMatch == null)
{
return(null);
}
if (resolveLocation)
{
location = GetAssemblyLocation(bestMatch);
}
return(null);
//return FusionAssemblyIdentity.ToAssemblyIdentity(bestMatch);
}
// Internal for testing.
internal static IEnumerable <FusionAssemblyIdentity.IAssemblyName> GetAssemblyObjects(
FusionAssemblyIdentity.IAssemblyName partialNameFilter,
ImmutableArray <ProcessorArchitecture> architectureFilter)
{
IAssemblyEnum enumerator;
FusionAssemblyIdentity.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:
#if SCRIPTING
throw new ArgumentException(Microsoft.CodeAnalysis.Scripting.ScriptingResources.InvalidAssemblyName);
#else
throw new ArgumentException(Microsoft.CodeAnalysis.WorkspaceDesktopResources.InvalidAssemblyName);
#endif
}
}
while (true)
{
FusionAssemblyIdentity.IAssemblyName nameObject;
hr = enumerator.GetNextAssembly(out applicationContext, out nameObject, 0);
if (hr != 0)
{
if (hr < 0)
{
Marshal.ThrowExceptionForHR(hr);
}
break;
}
if (!architectureFilter.IsDefault)
{
var assemblyArchitecture = FusionAssemblyIdentity.GetProcessorArchitecture(nameObject);
if (!architectureFilter.Contains(assemblyArchitecture))
{
continue;
}
}
yield return(nameObject);
}
}