/// <summary>
/// Creates a new feature block with new type members.
/// </summary>
/// <param name="originalFile">The original T4 file where the feature block must be created.</param>
/// <param name="text">The code representing new C# type members.</param>
/// <param name="first">The first node.</param>
/// <param name="last">The last node.</param>
/// <returns>A <see cref="TreeTextRange"/> representing the code range in the newly created feature block.</returns>
protected override TreeTextRange CreateTypeMemberNode(IFile originalFile, string text, ITreeNode first, ITreeNode last)
{
T4FeatureBlock featureBlock = T4ElementFactory.Instance.CreateFeatureBlock(text);
featureBlock = ((IT4File)originalFile).AddFeatureBlock(featureBlock);
return(featureBlock.GetCodeToken().GetTreeTextRange());
}
private static void ProcessT4FeatureBlock([NotNull] T4FeatureBlock featureBlock, [NotNull] CodeStructureElement parentElement,
[NotNull] ICSharpFile cSharpFile, [NotNull] ISecondaryRangeTranslator secondaryRangeTranslator, [NotNull] CSharpCodeStructureProcessingState state)
{
TreeTextRange t4Range = featureBlock.GetCodeToken().GetTreeTextRange();
TreeTextRange cSharpRange = secondaryRangeTranslator.OriginalToGenerated(t4Range);
if (!cSharpRange.IsValid())
{
return;
}
TreeOffset cSharpStart = cSharpRange.StartOffset;
TreeOffset cSharpEnd = cSharpRange.EndOffset;
ITreeNode containingNode = cSharpFile.FindNodeAt(cSharpRange);
if (containingNode == null)
{
return;
}
for (ITreeNode node = containingNode.FirstChild; node != null; node = node.NextSibling)
{
TreeOffset nodeStart = node.GetTreeStartOffset();
if (nodeStart >= cSharpStart && nodeStart < cSharpEnd)
{
ProcessCSharpNode(node, parentElement, state);
}
}
}
/// <summary>
/// Gets an existing feature block that can contains type members.
/// </summary>
/// <param name="originalFile">The original T4 file.</param>
/// <returns>A valid <see cref="TreeTextRange"/> if a feature block existed, <see cref="TreeTextRange.InvalidRange"/> otherwise.</returns>
protected override TreeTextRange GetExistingTypeMembersRange(IFile originalFile)
{
T4FeatureBlock lastFeatureBlock = ((IT4File)originalFile).GetFeatureBlocks().LastOrDefault();
return(lastFeatureBlock == null
? TreeTextRange.InvalidRange
: lastFeatureBlock.GetCodeToken().GetTreeTextRange());
}