/// <summary>
/// Generates the Merged CodeRoot object.
/// </summary>
/// <exception cref="InvalidOperationException">If no code roots have been added, or there is a conflict.</exception>
/// <returns></returns>
public ICodeRoot GetMergedCodeRoot()
{
ICodeRoot originalCodeRoot = coderoots.GetFirstNonNullObject();
if (originalCodeRoot == null)
{
throw new InvalidOperationException("Cannot merge code roots when none have been added");
}
ICodeRoot newCodeRoot = originalCodeRoot.NewInstance();
originalCodeRoot.ShallowCloneInto(newCodeRoot);
foreach (CodeRootMapNode child in children)
{
MissingObject missingObjects = child.DetermineMissingConstructs();
if ((missingObjects & MissingObject.User) != 0 &&
(missingObjects & MissingObject.NewGen) != 0)
{
// Only PrevGen here. Ignore it.
continue;
}
newCodeRoot.AddChild(child.GetMergedBaseConstruct());
}
return(newCodeRoot);
}