/// <summary>
/// Creates copy of read-only metadata of runnig assembly to enable changes.
/// </summary>
/// <param name="roEmitter">Read-only version of metadata.</param>
/// <returns>Editable copy of metadata.</returns>
private unsafe IMetaDataEmit createEmitterCopy(IMetaDataEmit roEmitter)
{
Object objDispenser, objEmitter = null;
ulong saveSize;
byte[] metadataBuffer;
roEmitter.GetSaveSize((uint)CorSaveSize.cssAccurate, out saveSize);
metadataBuffer = new byte[saveSize];
roEmitter.SaveToMemory(metadataBuffer, saveSize);
int hResult = NativeMethods.CoCreateInstance(ref dispenserClassID, null, 1, ref dispenserIID, out objDispenser);
if (hResult == 0)
{
IMetaDataDispenser dispenser = (IMetaDataDispenser)objDispenser;
UInt32 fVal = 0x01;
object val = (object)fVal;
dispenser.SetOption(ref metaDataSetENC, ref val);
fixed(byte *buff = metadataBuffer)
{
dispenser.OpenScopeOnMemory(new IntPtr(buff), (uint)metadataBuffer.Length, CorOpenFlags.ofRead, ref emitterIID, out objEmitter);
}
oldDispenser = dispenser;
}
return((IMetaDataEmit)objEmitter);
}
/// <summary>
/// Creates copy of read-only metadata of runnig assembly to enable changes.
/// </summary>
/// <param name="roEmitter">Read-only version of metadata.</param>
/// <returns>Editable copy of metadata.</returns>
private unsafe IMetaDataEmit createEmitterCopy(IMetaDataEmit roEmitter)
{
Object objDispenser, objEmitter = null;
ulong saveSize;
byte[] metadataBuffer;
roEmitter.GetSaveSize((uint)CorSaveSize.cssAccurate,out saveSize);
metadataBuffer = new byte[saveSize];
roEmitter.SaveToMemory(metadataBuffer, saveSize);
int hResult = NativeMethods.CoCreateInstance(ref dispenserClassID, null, 1, ref dispenserIID, out objDispenser);
if (hResult == 0)
{
IMetaDataDispenser dispenser = (IMetaDataDispenser)objDispenser;
UInt32 fVal = 0x01;
object val = (object)fVal;
dispenser.SetOption(ref metaDataSetENC, ref val);
fixed(byte* buff = metadataBuffer){
dispenser.OpenScopeOnMemory(new IntPtr(buff), (uint)metadataBuffer.Length,CorOpenFlags.ofRead, ref emitterIID, out objEmitter);
}
oldDispenser = dispenser;
}
return (IMetaDataEmit)objEmitter;
}
