/// <summary>
/// This is the key method for creating new RoslynDom elements. You can create new factories
/// by overriding the CreateListFrom or CreateItemFrom methods depending on whether you are
/// creating a list or single element respectively
/// </summary>
/// <param name="syntaxNode"></param>
/// <param name="parent"></param>
/// <param name="model"></param>
/// <returns></returns>
/// <remarks>
/// Lists are created when multiple items are declared on a line. This allows simple access to
/// variables and fields in the predominate case with only one variable per line. Currently this is not
/// recreated on output but the design intent was to have variable groups with arbitrarily defined
/// IDs and probably a position in the list. These two properties would be added to Field and Declaration
/// RDom items, and possibly interfaces. This would be sufficient for recreation of lists
/// <para/>
/// Use CanCreate and Priority to control how your factory is selected. Highest priority wins and
/// you can add to the enum values (as in Normal + 1)
/// </remarks>
public IEnumerable <IDom> CreateFrom(SyntaxNode syntaxNode, IDom parent, SemanticModel model, bool skipWhitespace)
{
var ret = new List <IDom>();
var newItems = CreateListFromInterim(syntaxNode, parent, model);
if (!newItems.Any())
{
return(ret);
}
var lookForTrivia = typeof(IStatement).IsAssignableFrom(typeof(T)) ||
typeof(ITypeMember).IsAssignableFrom(typeof(T)) ||
typeof(IStemMember).IsAssignableFrom(typeof(T));
var lookForTrailingTrivia = !typeof(IHasGroup).IsAssignableFrom(typeof(T));
if (lookForTrivia)
{
var leading = CreateFromWorker.GetDetail(syntaxNode, syntaxNode.GetLeadingTrivia(),
newItems.FirstOrDefault().Parent, model, OutputContext);
ret.AddRange(leading.OfType <IDom>());
if (lookForTrailingTrivia)
{
HandleTrailingTrivia(syntaxNode, model, newItems.LastOrDefault());
}
ret.AddRange(newItems.OfType <IDom>());
}
else
{
ret.AddRange(newItems.OfType <IDom>());
}
return(ret);
}
protected void HandleTrailingTrivia(SyntaxNode syntaxNode, SemanticModel model, IDom parent)
{
var trailingTrivia = syntaxNode.ChildTokens().Last().LeadingTrivia;
var trailing = CreateFromWorker.GetDetail(syntaxNode, trailingTrivia,
parent, model, OutputContext);
var container = parent as IRDomContainer;
if (trailing.Any() && container != null)
{
foreach (var newTrailing in trailing)
{
container.AddOrMoveMember(newTrailing);
}
}
}
/// <summary>
/// This is the key method for creating new RoslynDom elements. You can create new factories
/// by overriding the CreateListFrom or CreateItemFrom methods depending on whether you are
/// creating a list or single element respectively
/// </summary>
/// <param name="syntaxNode"></param>
/// <param name="parent"></param>
/// <param name="model"></param>
/// <returns></returns>
/// <remarks>
/// Lists are created when multiple items are declared on a line. This allows simple access to
/// variables and fields in the predominate case with only one variable per line. Currently this is not
/// recreated on output but the design intent was to have variable groups with arbitrarily defined
/// IDs and probably a position in the list. These two properties would be added to Field and Declaration
/// RDom items, and possibly interfaces. This would be sufficient for recreation of lists
/// <para/>
/// Use CanCreate and Priority to control how your factory is selected. Highest priority wins and
/// you can add to the enum values (as in Normal + 1)
/// </remarks>
public IEnumerable <IDom> CreateFrom(SyntaxNode syntaxNode, IDom parent, SemanticModel model, bool skipWhitespace)
{
var ret = new List <IDom>();
var newItems = CreateListFromInterim(syntaxNode, parent, model);
if (!newItems.Any())
{
return(ret);
}
var lookForTrivia = typeof(IStatement).IsAssignableFrom(typeof(T)) ||
typeof(ITypeMember).IsAssignableFrom(typeof(T)) ||
typeof(IStemMember).IsAssignableFrom(typeof(T));
if (lookForTrivia)
{
var leading = CreateFromWorker.GetDetail(syntaxNode, syntaxNode.GetLeadingTrivia(),
newItems.FirstOrDefault().Parent, model, OutputContext);
var trailingTrivia = syntaxNode.ChildTokens().Last().LeadingTrivia;
var trailing = CreateFromWorker.GetDetail(syntaxNode, trailingTrivia,
newItems.LastOrDefault(), model, OutputContext);
ret.AddRange(leading.OfType <IDom>());
if (trailing.Any() && newItems.Any())
{
var newLastAsContainer = newItems.Last() as IContainer;
foreach (var newTrailing in trailing)
{
newLastAsContainer.AddOrMoveMember(newTrailing);
}
}
ret.AddRange(newItems.OfType <IDom>());
}
else
{
ret.AddRange(newItems.OfType <IDom>());
}
return(ret);
}
