/// <summary>
/// Reads a marshal descriptor signature from the provided input stream.
/// </summary>
/// <param name="parentModule">The module that defines the marshal descriptor</param>
/// <param name="reader">The input stream.</param>
/// <returns>The marshal descriptor.</returns>
public static MarshalDescriptor FromReader(ModuleDefinition parentModule, ref BinaryStreamReader reader)
{
var nativeType = (NativeType)reader.ReadByte();
MarshalDescriptor descriptor = nativeType switch
{
NativeType.SafeArray => SafeArrayMarshalDescriptor.FromReader(parentModule, ref reader),
NativeType.FixedArray => FixedArrayMarshalDescriptor.FromReader(ref reader),
NativeType.LPArray => LPArrayMarshalDescriptor.FromReader(ref reader),
NativeType.CustomMarshaller => CustomMarshalDescriptor.FromReader(parentModule, ref reader),
NativeType.FixedSysString => FixedSysStringMarshalDescriptor.FromReader(ref reader),
NativeType.Interface => ComInterfaceMarshalDescriptor.FromReader(nativeType, ref reader),
NativeType.IDispatch => ComInterfaceMarshalDescriptor.FromReader(nativeType, ref reader),
NativeType.IUnknown => ComInterfaceMarshalDescriptor.FromReader(nativeType, ref reader),
_ => new SimpleMarshalDescriptor(nativeType)
};
descriptor.ExtraData = reader.ReadToEnd();
return(descriptor);
}
/// <summary>
/// Reads a single array marshal descriptor at the current position of the binary stream reader.
/// </summary>
/// <param name="reader">The reader to use.</param>
/// <returns>The read array descriptor.</returns>
/// <remarks>
/// This method assumes the native type has already been read from the binary stream reader.
/// </remarks>
public static LPArrayMarshalDescriptor FromReader(ref BinaryStreamReader reader)
{
var descriptor = new LPArrayMarshalDescriptor((NativeType)reader.ReadByte());
if (!reader.TryReadCompressedUInt32(out uint value))
{
return(descriptor);
}
descriptor.ParameterIndex = (int)value;
if (!reader.TryReadCompressedUInt32(out value))
{
return(descriptor);
}
descriptor.NumberOfElements = (int)value;
if (!reader.TryReadCompressedUInt32(out value))
{
return(descriptor);
}
descriptor.Flags = (LPArrayFlags)value;
return(descriptor);
}
