parseUtf8Input method

GeneratedTreeSitterTree parseUtf8Input(TreeSitterNativeInput input, { GeneratedTreeSitterTree? oldTree, Iterable<TreeSitterInputEdit> edits = const [], List<TreeSitterTableRange> includedRanges = const [], TreeSitterParserRuntimeHooks? runtimeHooks, })

Parses native callback-backed UTF-8 input without collecting it first.

The active generated lexer requests another chunk only when its current lookahead reaches the end of the cached bytes. A progress halt preserves the parser session and the consumed prefix; a subsequent call installs the new native input callback and resumes that same session.

Implementation

GeneratedTreeSitterTree parseUtf8Input(
  TreeSitterNativeInput input, {
  GeneratedTreeSitterTree? oldTree,
  Iterable<TreeSitterInputEdit> edits = const [],
  List<TreeSitterTableRange> includedRanges = const [],
  TreeSitterParserRuntimeHooks? runtimeHooks,
}) {
  final resuming = _activeParseSession != null;
  _runtimeHooks = runtimeHooks;
  _parseClock = runtimeHooks != null && runtimeHooks.timeout > Duration.zero
      ? (Stopwatch()..start())
      : null;
  _progressOperationCount = 0;
  _activeIncludedRanges = includedRanges;
  if (!resuming) {
    _initializeNewParse(oldTree, edits, includedRanges);
    _activeBytes = <int>[];
  }
  _activeStreamingInput = input;
  _activeStreamingInputEnded = false;
  var halted = false;
  try {
    return _parseWithRecovery('', null, streaming: true);
  } on GeneratedTreeSitterParseHalted {
    halted = true;
    rethrow;
  } finally {
    if (!halted) reset();
    _runtimeHooks = null;
    _parseClock = null;
  }
}