// Internal for unit tests only.
internal MergedDeclaration CalculateMergedRoot(LanguageCompilation compilation)
{
var oldRoot = _cache.MergedRoot.Value;
if (_latestLazyRootDeclaration == null)
{
return(oldRoot);
}
else if (oldRoot == null)
{
return(MergedDeclaration.Create(_latestLazyRootDeclaration.Value));
}
else
{
var oldRootDeclarations = oldRoot.Declarations;
var builder = ArrayBuilder <SingleDeclaration> .GetInstance(oldRootDeclarations.Length + 1);
builder.AddRange(oldRootDeclarations);
builder.Add(_latestLazyRootDeclaration.Value);
// Sort the root namespace declarations to match the order of SyntaxTrees.
if (compilation != null)
{
builder.Sort(new RootNamespaceLocationComparer(compilation));
}
return(MergedDeclaration.Create(builder.ToImmutableAndFree()));
}
}
public Cache(DeclarationTable table)
{
this.MergedRoot = new Lazy <MergedDeclaration>(
() => MergedDeclaration.Create(table._allOlderRootDeclarations.InInsertionOrder.AsImmutable <SingleDeclaration>()));
this.TypeNames = new Lazy <ISet <string> >(
() => GetTypeNames(this.MergedRoot.Value));
this.NamespaceNames = new Lazy <ISet <string> >(
() => GetNamespaceNames(this.MergedRoot.Value));
this.ReferenceDirectives = new Lazy <ImmutableArray <ReferenceDirective> >(
() => MergedRoot.Value.Declarations.OfType <RootSingleDeclaration>().SelectMany(r => r.ReferenceDirectives).AsImmutable());
}