public QuickTypeIdentifierAttributeChecker AddAliasesIfAny(ImmutableDictionary <string, AliasAndUsingDirective> usingAliases)
{
QuickTypeIdentifierAttributeChecker newChecker = null;
foreach (KeyValuePair <string, AliasAndUsingDirective> pair in usingAliases)
{
if (_candidates.Contains(pair.Value.UsingDirective.Name.GetUnqualifiedName().Identifier.ValueText))
{
(newChecker ?? (newChecker = new QuickTypeIdentifierAttributeChecker(this))).AddCandidate(pair.Key);
}
}
if (newChecker != null)
{
#if DEBUG
newChecker._sealed = true;
#endif
return(newChecker);
}
return(this);
}
private QuickTypeIdentifierAttributeChecker(QuickTypeIdentifierAttributeChecker previous)
{
_candidates = new HashSet <string>(previous._candidates);
}