public LocationPreviewItem(FilePreviewItem parent, LocationInfo locationInfo, VariableType type)
{
_lineNo = locationInfo.Line;
_columnNo = locationInfo.Column;
_parent = parent;
string text = locationInfo.ProjectEntry.GetLine(locationInfo.Line);
string trimmed = text.TrimStart(_whitespace);
_text = trimmed;
_type = type;
_span = new Span(_columnNo - (text.Length - trimmed.Length) - 1, parent.Engine.OriginalName.Length);
if (String.Compare(_text, _span.Start, parent.Engine.OriginalName, 0, parent.Engine.OriginalName.Length) != 0) {
// we are renaming a name mangled name (or we have a bug where the names aren't lining up).
Debug.Assert(_text.Substring(_span.Start, _span.Length + 1 + parent.Engine.PrivatePrefix.Length) == "_" + parent.Engine.PrivatePrefix + parent.Engine.OriginalName);
if (parent.Engine.Request.Name.StartsWith("__")) {
// if we're renaming to a private prefix name then we just rename the non-prefixed portion
_span = new Span(_span.Start + 1 + parent.Engine.PrivatePrefix.Length, _span.Length);
_columnNo += 1 + parent.Engine.PrivatePrefix.Length;
} else {
// otherwise we renmae the prefixed and non-prefixed portion
_span = new Span(_span.Start, _span.Length + 1 + parent.Engine.PrivatePrefix.Length);
}
}
}
private List<FilePreviewItem> CreatePreviewItems()
{
Dictionary<string, FilePreviewItem> files = new Dictionary<string, FilePreviewItem>();
Dictionary<FilePreviewItem, HashSet<LocationInfo>> allItems = new Dictionary<FilePreviewItem, HashSet<LocationInfo>>();
foreach (var variable in _variables) {
switch (variable.Type) {
case VariableType.Definition:
case VariableType.Reference:
string file = variable.Location.FilePath;
FilePreviewItem fileItem;
HashSet<LocationInfo> curLocations;
if (!files.TryGetValue(file, out fileItem)) {
files[file] = fileItem = new FilePreviewItem(this, file);
allItems[fileItem] = curLocations = new HashSet<LocationInfo>(LocationInfo.FullComparer);
} else {
curLocations = allItems[fileItem];
}
if (!curLocations.Contains(variable.Location)) {
fileItem.Items.Add(new LocationPreviewItem(fileItem, variable.Location, variable.Type));
curLocations.Add(variable.Location);
}
break;
}
}
List<FilePreviewItem> fileItems = new List<FilePreviewItem>(files.Values);
foreach (var fileItem in fileItems) {
fileItem.Items.Sort(LocationComparer);
}
fileItems.Sort(FileComparer);
return fileItems;
}
private static int FileComparer(FilePreviewItem left, FilePreviewItem right)
{
return String.Compare(left.Filename, right.Filename, StringComparison.OrdinalIgnoreCase);
}