public RemoveOperation(RemoveOperationBuilder builder, LazyItemEvaluator <P, I, M, D> lazyEvaluator)
: base(builder, lazyEvaluator)
{
_matchOnMetadata = builder.MatchOnMetadata.ToImmutable();
ProjectFileErrorUtilities.VerifyThrowInvalidProjectFile(
_matchOnMetadata.IsEmpty || _itemSpec.Fragments.All(f => f is ItemSpec <P, I> .ItemExpressionFragment),
new BuildEventFileInfo(string.Empty),
"OM_MatchOnMetadataIsRestrictedToReferencedItems");
if (!_matchOnMetadata.IsEmpty)
{
_metadataSet = new MetadataTrie <P, I>(builder.MatchOnMetadataOptions, _matchOnMetadata, _itemSpec);
}
}
private void Add(IEnumerable <string> metadata, StringComparer comparer)
{
MetadataTrie <P, I> current = this;
foreach (string m in metadata)
{
string normalizedString = _normalize(m);
if (!current._children.TryGetValue(normalizedString, out MetadataTrie <P, I> child))
{
child = new MetadataTrie <P, I>(comparer);
current._children.Add(normalizedString, child);
}
current = child;
}
}
internal bool Contains(IEnumerable <string> metadata)
{
MetadataTrie <P, I> current = this;
foreach (string m in metadata)
{
if (String.IsNullOrEmpty(m))
{
return(false);
}
if (!current._children.TryGetValue(_normalize(m), out current))
{
return(false);
}
}
return(true);
}