part of dart._engine;
// Copyright 2013 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.




UnicodePropertyLookup<LineCharProperty> get lineLookup => ensureLineLookupInitialized();

/// Initializes [lineLookup], if it's not already initialized.
///
/// Use this function to trigger the initialization before [lineLookup] is
/// actually used. For example, triggering it before the first application
/// frame is rendered will reduce jank by moving the initialization out of
/// the frame.
UnicodePropertyLookup<LineCharProperty> ensureLineLookupInitialized() {
  return _lineLookup ??=
    UnicodePropertyLookup<LineCharProperty>.fromPackedData(
      packedLineBreakProperties,
      singleLineBreakRangesCount,
      LineCharProperty.values,
      defaultLineCharProperty,
    );
}

UnicodePropertyLookup<LineCharProperty>? _lineLookup;
