private void SerializeNamespaceScopeMetadata(EmitContext context, IMethodBody methodBody, ArrayBuilder <PooledBlobBuilder> customDebugInfo)
{
if (context.Module.GenerateVisualBasicStylePdb)
{
return;
}
if (ShouldForwardToPreviousMethodWithUsingInfo(context, methodBody))
{
Debug.Assert(!ReferenceEquals(_previousMethodBodyWithUsingInfo, methodBody));
SerializeReferenceToPreviousMethodWithUsingInfo(customDebugInfo);
return;
}
List <ushort> usingCounts = new List <ushort>();
PooledBlobBuilder cmw = PooledBlobBuilder.GetInstance();
for (IImportScope scope = methodBody.ImportScope; scope != null; scope = scope.Parent)
{
usingCounts.Add((ushort)scope.GetUsedNamespaces().Length);
}
// ACASEY: This originally wrote (uint)12, (ushort)1, (ushort)0 in the
// case where usingCounts was empty, but I'm not sure why.
if (usingCounts.Count > 0)
{
uint streamLength;
cmw.WriteByte(CustomDebugInfoConstants.Version);
cmw.WriteByte((byte)CustomDebugInfoKind.UsingInfo);
cmw.Align(4);
cmw.WriteUInt32(streamLength = BitArithmeticUtilities.Align((uint)usingCounts.Count * 2 + 10, 4));
cmw.WriteUInt16((ushort)usingCounts.Count);
foreach (ushort uc in usingCounts)
{
cmw.WriteUInt16(uc);
}
cmw.Align(4);
Debug.Assert(streamLength == cmw.Count);
customDebugInfo.Add(cmw);
}
if (_methodBodyWithModuleInfo != null && !ReferenceEquals(_methodBodyWithModuleInfo, methodBody))
{
SerializeReferenceToMethodWithModuleInfo(customDebugInfo);
}
}