dispose method

@override void dispose()

Releases the renderer-owned previous-frame buffer and transient state.

The buffer passed to render is borrowed and is never disposed. Repeated calls are safe.

Implementation

@override
void dispose() {
  if (_disposed) return;
  _disposed = true;
  _curbuf?.dispose();
  _curbuf = null;
  _lastRenderedInput = null;
  _tabs = null;
  _oldhash = const [];
  _newhash = const [];
  _hashtab = const [];
  _oldnum = const [];
  _arena.clear();
  _sixelRows = const <bool>[];
  _alwaysUpdateCells.clear();
  _deferredRetainedGraphics.clear();
  _deferredDisplayPayloads.clear();
  _styleTransitionCache = null;
  _buf.clear();
  _lastFlushedOutput = '';
}