/// <summary>
/// Selects that code reference from given list of options, that best matches given namespace.
/// </summary>
protected virtual CodeReferenceInfo GetInfoWithNamespace(List <CodeReferenceInfo> list, string nmspc)
{
CodeReferenceInfo nfo = null;
foreach (var item in list)
{
if (item.Origin.Namespace == nmspc)
{
if (prefferedResXItem != null)
{
if (nfo == null || prefferedResXItem == item.Origin)
{
nfo = item;
}
}
else
{
if (nfo == null || nfo.Origin.IsCultureSpecific())
{
nfo = item;
}
}
}
}
return(nfo);
}
/// <summary>
/// Attempts to determine which resource key the reference points to
/// </summary>
protected override CodeReferenceInfo ResolveReference(string prefix, string className, List <CodeReferenceInfo> trieElementInfos)
{
CodeReferenceInfo info = null;
// prepend "My" with root namespace
string newPrefix = null;
if (prefix != null)
{
int myIndex = prefix.IndexOf("My");
if (myIndex != -1 && (myIndex + 2 == prefix.Length || prefix[myIndex + 2] == '.'))
{
newPrefix = prefix.Replace("My", Project.GetRootNamespace() + ".My");
}
}
// try various combinations to lookup the reference
info = TryResolve(prefix, className, trieElementInfos);
if (info == null && !string.IsNullOrEmpty(prefix))
{
info = TryResolve(prefix + "." + className, className, trieElementInfos);
}
if (info == null && newPrefix != null)
{
info = TryResolve(newPrefix, className, trieElementInfos);
}
if (info == null && string.IsNullOrEmpty(prefix))
{
info = TryResolve(className, className, trieElementInfos);
}
if (info == null && newPrefix != null)
{
info = TryResolve(newPrefix + "." + className, className, trieElementInfos);
}
return(info);
}
/// <summary>
/// Resolves given reference to a resource to a qualified name
/// </summary>
/// <param name="prefix">Namespace in the reference</param>
/// <param name="className">Class in the reference</param>
/// <param name="trieElementInfos">List of resource files entries - possible targets of this reference</param>
/// <returns>Resolved reference</returns>
protected CodeReferenceInfo TryResolve(string prefix, string className, List <CodeReferenceInfo> trieElementInfos)
{
CodeReferenceInfo info = null;
if (string.IsNullOrEmpty(prefix)) // no namespace
// get namespace where this class belongs
{
UsedNamespaceItem item = UsedNamespaces.ResolveNewReference(className, Project);
if (item != null) // namespace found
{
info = GetInfoWithNamespace(trieElementInfos, item.Namespace);
}
}
else
{
string aliasNamespace = UsedNamespaces.GetNamespace(prefix); // suppose prefix is alias - try get actual namespace
if (!string.IsNullOrEmpty(aliasNamespace)) // really, it was just alias
{
info = GetInfoWithNamespace(trieElementInfos, aliasNamespace);
}
else // no, it was full name of namespace
{
info = GetInfoWithNamespace(trieElementInfos, prefix);
if (info == null) // try adding prefix to the class name - in case prefix is just part of namespace
{
UsedNamespaceItem item = UsedNamespaces.ResolveNewReference(prefix + "." + className, Project);
if (item != null)
{
info = GetInfoWithNamespace(trieElementInfos, item.Namespace + "." + prefix);
}
}
}
}
return(info);
}
/// <summary>
/// Adds reference to a resource result item to the list
/// </summary>
/// <param name="list">Result list</param>
/// <param name="referenceText">Full text of the reference</param>
/// <param name="trieElementInfos">Info about reference, taken from terminal state of the trie</param>
/// <returns>New result item</returns>
protected virtual T AddReferenceResult(List <T> list, string referenceText, List <CodeReferenceInfo> trieElementInfos)
{
string[] t = referenceText.Split('.');
if (t.Length < 2)
{
throw new Exception("Code parse error - invalid token " + referenceText);
}
string referenceClass;
string prefix;
string key;
if (t.Length == 2) // reference has format Class.key
{
key = t[1]; // get key
referenceClass = t[0]; // get class
prefix = null; // no preceding namespace
}
else // reference looks like Namespace.Class.key
{
key = t[t.Length - 1]; // get key
referenceClass = t[t.Length - 2]; // get class
prefix = string.Join(".", t, 0, t.Length - 2); // the rest is namespace
}
CodeReferenceInfo info = ResolveReference(prefix, referenceClass, trieElementInfos);
if (info != null)
{
// calculate position of the reference
TextSpan span = new TextSpan();
span.iStartLine = ReferenceStartLine - 1;
span.iStartIndex = ReferenceStartIndex;
span.iEndLine = CurrentLine - 1;
span.iEndIndex = CurrentIndex + 1;
// generate new result item
var resultItem = new T();
resultItem.Value = info.Value;
resultItem.SourceItem = this.SourceItem;
resultItem.ReplaceSpan = span;
resultItem.AbsoluteCharOffset = ReferenceStartOffset;
resultItem.AbsoluteCharLength = CurrentAbsoluteOffset - ReferenceStartOffset + 1;
resultItem.DestinationItem = info.Origin;
resultItem.IsWithinLocalizableFalse = IsWithinLocFalse;
resultItem.Key = info.Key;
CodeReferenceResultItem refItem = (resultItem as CodeReferenceResultItem);
refItem.FullReferenceText = string.Format("{0}.{1}.{2}", info.Origin.Namespace, info.Origin.Class, key);
if (string.IsNullOrEmpty(prefix))
{
refItem.OriginalReferenceText = string.Format("{0}.{1}", referenceClass, key);
}
else
{
refItem.OriginalReferenceText = string.Format("{0}.{1}.{2}", prefix, referenceClass, key);
}
list.Add(resultItem);
return(resultItem);
}
else
{
return(null);
}
}
