public MetadataFile OpenFileAsFileMapping(string fileName)
{
MetadataFile metadataFileAndRvaResolver;
FileMapping fileMapping = new FileMapping(fileName);
MetadataDispenser.IMetaDataDispenserEx dispenserShim = MetadataDispenser.GetDispenserShim();
Guid gUID = typeof(MetadataDispenser.IMetadataImportDummy).GUID;
IntPtr zero = IntPtr.Zero;
try
{
IntPtr baseAddress = fileMapping.BaseAddress;
uint length = (uint)fileMapping.Length;
int num = dispenserShim.OpenScopeOnMemory(baseAddress, length, MetadataDispenser.CorOpenFlags.ReadOnly, ref gUID, out zero);
Marshal.ThrowExceptionForHR(num);
GC.KeepAlive(dispenserShim);
Marshal.FinalReleaseComObject(dispenserShim);
dispenserShim = null;
metadataFileAndRvaResolver = new MetadataFileAndRvaResolver(zero, fileMapping);
}
finally
{
if (zero != IntPtr.Zero)
{
Marshal.Release(zero);
}
}
return(metadataFileAndRvaResolver);
}
public MetadataFile OpenFromByteArray(byte[] data)
{
MetadataFile metadataFileOnByteArray;
data = (byte[])data.Clone();
MetadataDispenser.IMetaDataDispenserEx dispenserShim = MetadataDispenser.GetDispenserShim();
Guid gUID = typeof(MetadataDispenser.IMetadataImportDummy).GUID;
IntPtr zero = IntPtr.Zero;
GCHandle gCHandle = new GCHandle();
try
{
gCHandle = GCHandle.Alloc(data, GCHandleType.Pinned);
IntPtr intPtr = Marshal.UnsafeAddrOfPinnedArrayElement(data, 0);
uint length = (uint)data.Length;
int num = dispenserShim.OpenScopeOnMemory(intPtr, length, MetadataDispenser.CorOpenFlags.ReadOnly, ref gUID, out zero);
Marshal.ThrowExceptionForHR(num);
GC.KeepAlive(dispenserShim);
Marshal.FinalReleaseComObject(dispenserShim);
dispenserShim = null;
metadataFileOnByteArray = new MetadataDispenser.MetadataFileOnByteArray(ref gCHandle, zero);
}
finally
{
if (gCHandle.IsAllocated)
{
gCHandle.Free();
}
if (zero != IntPtr.Zero)
{
Marshal.Release(zero);
}
}
return(metadataFileOnByteArray);
}
public MetadataFile OpenFile(string fileName)
{
MetadataFile metadataFile;
MetadataDispenser.IMetaDataDispenserEx dispenserShim = MetadataDispenser.GetDispenserShim();
Guid gUID = typeof(MetadataDispenser.IMetadataImportDummy).GUID;
IntPtr zero = IntPtr.Zero;
try
{
int num = dispenserShim.OpenScope(fileName, MetadataDispenser.CorOpenFlags.ReadOnly, ref gUID, out zero);
Marshal.ThrowExceptionForHR(num);
GC.KeepAlive(dispenserShim);
Marshal.FinalReleaseComObject(dispenserShim);
dispenserShim = null;
metadataFile = new MetadataFile(zero);
}
finally
{
if (zero != IntPtr.Zero)
{
Marshal.Release(zero);
}
}
return(metadataFile);
}
