public async Task ExecuteAsync(AsyncData data, WorkSession session, ICommandResultSender sender, CancellationToken cancellationToken)
{
var first = data.GetFirst();
var endOffset = first.Offset + first.Count - 1;
var partStart = first.Offset;
int? start = null;
int? length = null;
int? cursorPosition = null;
string?reason = null;
for (var i = first.Offset; i <= endOffset; i++)
{
if (first.Array[i] != (byte)':')
{
continue;
}
var part = new ArraySegment <byte>(first.Array, partStart, i - partStart);
if (start == null)
{
start = FastConvert.Utf8ByteArrayToInt32(part);
partStart = i + 1;
continue;
}
if (length == null)
{
length = FastConvert.Utf8ByteArrayToInt32(part);
partStart = i + 1;
continue;
}
if (cursorPosition == null)
{
cursorPosition = FastConvert.Utf8ByteArrayToInt32(part);
partStart = i + 1;
continue;
}
reason = part.Count > 0 ? Encoding.UTF8.GetString(part) : string.Empty;
partStart = i + 1;
break;
}
if (start == null || length == null || cursorPosition == null || reason == null)
{
throw new FormatException("Command arguments must be 'start:length:cursor:reason:text'.");
}
var text = await AsyncDataConvert.ToUtf8StringAsync(data, partStart - first.Offset, _charArrayPool).ConfigureAwait(false);
session.ReplaceText(text, start.Value, length.Value);
session.CursorPosition = cursorPosition.Value;
await _signatureHelp.ApplyCursorPositionChangeAsync(session, sender, cancellationToken).ConfigureAwait(false);
await _completion.ApplyReplacedTextAsync(reason, _typedCharEffects, session, sender, cancellationToken).ConfigureAwait(false);
}
public async Task ExecuteAsync(AsyncData data, WorkSession session, ICommandResultSender sender, CancellationToken cancellationToken)
{
// this doesn't happen too often, so microptimizations are not required
var optionsString = await AsyncDataConvert.ToUtf8StringAsync(data, 0, _charArrayPool).ConfigureAwait(false);
var options = optionsString
.Split(Comma)
.Select(p => p.Split(EqualsSign))
.ToDictionary(p => p[0], p => p[1]);
if (options.TryGetValue(LanguageOptionName, out var language))
{
// this has to be done first, as it might reset other options
SetLanguage(session, language);
session.RawOptionsFromClient[LanguageOptionName] = language;
}
foreach (var option in options)
{
var(name, value) = (option.Key, option.Value);
if (name == LanguageOptionName)
{
continue;
}
if (name.StartsWith("x-"))
{
if (!(_extension?.TrySetOption(session, name, value) ?? false))
{
throw new FormatException($"Extension option '{name}' was not recognized.");
}
session.RawOptionsFromClient[name] = value;
continue;
}
throw new FormatException($"Option '{name}' was not recognized (to use {nameof(ISetOptionsFromClientExtension)}, make sure your option name starts with 'x-').");
}
await SendOptionsEchoAsync(session, sender, cancellationToken).ConfigureAwait(false);
}
