public VisualizerInfo(VisualizerType viz, TypeName name)
{
Visualizer = viz;
// add the template parameter macro values
NatvisScope = new NatvisScope();
for (int i = 0; i < name.Args.Count; ++i)
{
NatvisScope.AddScopedName($"$T{i + 1}", name.Args[i].FullyQualifiedName);
}
}
public override async Task <IList <IVariableInformation> > GetChildrenAsync(
int from, int count)
{
await InitAsync();
var result = new List <IVariableInformation>();
if (_store.ValidationError != null)
{
result.Add(_store.ValidationError);
return(result.GetRange(from, count));
}
var indexDic = new NatvisScope(_natvisScope);
for (int index = from; index < from + count; index++)
{
IVariableInformation varInfo = await _store.GetOrEvaluateAsync(index, async i => {
indexDic.AddScopedName("$i", $"{i}U");
string displayName = $"[{i}]";
// From the list of all <ValueNode> children, filter all with non-empty body
// and return the first which Condition evaluates to true.
IndexNodeType valueNode =
await _indexListItems
.ValueNode?.Where(v => !string.IsNullOrWhiteSpace(v.Value))
.FirstOrDefaultAsync(v => _evaluator.EvaluateConditionAsync(
v.Condition, _variable, indexDic));
if (valueNode == null)
{
// For the current index $i, there is no <ValueNode> which passes the
// Condition check.
return(new ErrorVariableInformation(
displayName, "<Error> No valid <ValueNode> found."));
}
return(await _evaluator.GetExpressionValueOrErrorAsync(
valueNode.Value, _variable, indexDic, displayName, "IndexListItems"));
});
result.Add(varInfo);
}
return(result);
}
