private void EnsureReShaprerVersion(Type type)
{
if (_reSharperVersion.HasValue)
{
Contract.Requires(_reSharperEditTagDetector != null);
return;
}
SetReSharperVersion(ResharperVersionUtility.DetectFromAssembly(type.Assembly));
}
/// <summary>
/// The various JetBrains products reuse at a code base level certain constructs
/// such as ITagger<T> implementations. For example both R# and dotTrace and
/// dotCover use the VsDocumentMarkerTaggerProvider. If multiple products are
/// installed then MEF composition will return them in a non-deterministic
/// order. They all have the same fully qualified name. The only way to
/// distinguish them is to look at the assembly name containing the type
/// </summary>
private bool TryGetSpecificTagger(ITextBuffer textBuffer, out bool sawName, out ITagger <ITag> tagger)
{
sawName = false;
tagger = null;
foreach (var pair in TaggerProviders)
{
var provider = pair.Value;
var providerType = provider.GetType();
// First step is to check the name of the tagger. The ReSharper taggers we care
// about all have the same name
if (providerType.Name == ResharperTaggerProviderName)
{
// Next we need to make sure this is actually a ReSharper tagger. Both dotCover
// and ReSharper use the same tagger name. The only way to differentiate them is
// to look at the assembly version
var version = ResharperVersionUtility.DetectFromAssembly(providerType.Assembly);
if (version != ReSharperVersion.Unknown)
{
SetReSharperVersion(version);
var taggerResult = provider.SafeCreateTagger <ITag>(textBuffer);
if (taggerResult.IsSuccess)
{
tagger = taggerResult.Value;
return(true);
}
}
else
{
sawName = true;
}
}
}
return(false);
}