private MixinSignature GetSignature(int pos, IAst astRoot, ITrackingSpan applicableToSpan)
{
var visitor = new FindNodeAstVisitor(new NSpan(pos, pos));
visitor.Visit(astRoot);
foreach (var ast in visitor.Stack)
{
if (ast is FunctionRef)
{
var functionRef = (FunctionRef)ast;
if (functionRef.IsSymbolEvaluated && functionRef.Symbol.IsFunctionEvaluated)
{
var symbol = functionRef.Symbol;
var function = symbol.Function;
var parameters = function.Parameters.MakeCompletionList("")
.OfType <FunctionParameterSymbol>()
.OrderBy(p => p.Index)
.Select(p => p.Name)
.ToList();
var paramString = string.Join(", ", parameters);
return(CreateSignature(_buffer, function.Name + "(" + paramString + ")", "", applicableToSpan));
}
return(null);
}
}
return(null);
}
private HashSet <Completion> CompleteWord(int pos, IAst astRoot, IParseResult parseResult, SourceSnapshot source, ITextSnapshot compiledSnapshot)
{
var completionList = new HashSet <Completion>();
var nspan = new NSpan(pos, pos);
if (IsInsideComment(parseResult, nspan))
{
return(completionList);
}
var visitor = new FindNodeAstVisitor(nspan);
visitor.Visit(astRoot);
var stack = visitor.Stack
.Where(ast => !(ast is IEnumerable)) // Skip IAstList
.ToArray();
if (ShouldComplete(stack, pos, compiledSnapshot))
{
GetCompletions(completionList, stack);
AddKeywordCompletions(stack, completionList);
}
return(completionList);
}
public IAst[] GetCurrentAstStack(string fileName, int caretPosition)
{
var file = LatestResult?.GetFile(fileName);
if (file == null)
{
return(new IAst[0]);
}
var visitor = new FindNodeAstVisitor(new NSpan(caretPosition, caretPosition));
visitor.Visit(file.Ast);
return(visitor.Stack.ToArray());
}
