/// <summary>
/// This will take 'table' and merge all of the NamespaceData instances that point to the same
/// namespace. It has to create 'stringTable' as an intermediate dictionary, so it will hand it
/// back to the caller should the caller want to use it.
/// </summary>
private static void MergeDuplicateNamespaces(Dictionary <NamespaceDefinitionHandle, NamespaceDataBuilder> table, out Dictionary <string, NamespaceDataBuilder> stringTable)
{
var namespaces = new Dictionary <string, NamespaceDataBuilder>();
List <KeyValuePair <NamespaceDefinitionHandle, NamespaceDataBuilder> >?remaps = null;
foreach (var group in table)
{
NamespaceDataBuilder data = group.Value;
NamespaceDataBuilder?existingRecord;
if (namespaces.TryGetValue(data.FullName, out existingRecord))
{
// Children should not exist until the next step.
Debug.Assert(data.Namespaces !.Count == 0);
data.MergeInto(existingRecord);
remaps ??= new List <KeyValuePair <NamespaceDefinitionHandle, NamespaceDataBuilder> >();
remaps.Add(new KeyValuePair <NamespaceDefinitionHandle, NamespaceDataBuilder>(group.Key, existingRecord));
}
else
{
namespaces.Add(data.FullName, data);
}
}
// Needs to be done outside of foreach (var group in table) to avoid modifying the dictionary while foreach'ing over it.
if (remaps != null)
{
foreach (var tuple in remaps)
{
table[tuple.Key] = tuple.Value;
}
}
stringTable = namespaces;
}
