private void WriteSignatureParts(
IFastJsonWriter writer,
SignatureHelpItemData item,
SignatureHelpItemsData items,
out SignatureHelpParameterData?selectedParameter
)
{
selectedParameter = null;
writer.WritePropertyStartArray("parts");
writer.WriteTaggedTexts(item.PrefixDisplayParts);
var parameterIndex = 0;
foreach (var parameter in item.Parameters)
{
if (parameterIndex > 0)
{
writer.WriteTaggedTexts(item.SeparatorDisplayParts);
}
var selected = items.ArgumentIndex == parameterIndex;
writer.WriteTaggedTexts(parameter.PrefixDisplayParts, selected);
writer.WriteTaggedTexts(parameter.DisplayParts, selected);
writer.WriteTaggedTexts(parameter.SuffixDisplayParts, selected);
if (selected)
{
selectedParameter = parameter;
}
parameterIndex += 1;
}
writer.WriteTaggedTexts(item.SuffixDisplayParts);
writer.WriteEndArray();
}
private Task SendSignatureHelpAsync([CanBeNull] SignatureHelpItemsData items, ICommandResultSender sender, CancellationToken cancellationToken)
{
var writer = sender.StartJsonMessage("signatures");
if (items == null)
{
return(sender.SendJsonMessageAsync(cancellationToken));
}
var selectedItemIndex = items.SelectedItemIndex;
writer.WritePropertyName("span");
writer.WriteSpan(items.ApplicableSpan);
writer.WritePropertyStartArray("signatures");
var itemIndex = 0;
foreach (var item in items.Items)
{
writer.WriteStartObject();
if (selectedItemIndex == null && items.ArgumentCount <= item.ParameterCount)
{
selectedItemIndex = itemIndex;
}
if (itemIndex == selectedItemIndex)
{
writer.WriteProperty("selected", true);
}
writer.WritePropertyStartArray("parts");
writer.WriteTaggedTexts(item.PrefixDisplayParts);
var parameterIndex = 0;
foreach (var parameter in item.Parameters)
{
if (parameterIndex > 0)
{
writer.WriteTaggedTexts(item.SeparatorDisplayParts);
}
var selected = items.ArgumentIndex == parameterIndex;
writer.WriteTaggedTexts(parameter.PrefixDisplayParts, selected);
writer.WriteTaggedTexts(parameter.DisplayParts, selected);
writer.WriteTaggedTexts(parameter.SuffixDisplayParts, selected);
parameterIndex += 1;
}
writer.WriteTaggedTexts(item.SuffixDisplayParts);
writer.WriteEndArray();
writer.WriteEndObject();
itemIndex += 1;
}
writer.WriteEndArray();
return(sender.SendJsonMessageAsync(cancellationToken));
}
public CurrentSignatureHelp(ISignatureHelpProviderWrapper provider, SignatureHelpItemsData items)
{
Provider = provider;
Items = items;
}
