Line data    Source code

       1              : // Copyright 2026 The Authors
       2              : //
       3              : // Licensed under the Apache License, Version 2.0 (the "License");
       4              : // you may not use this file except in compliance with the License.
       5              : // You may obtain a copy of the License at
       6              : //
       7              : //     https://www.apache.org/licenses/LICENSE-2.0
       8              : //
       9              : // Unless required by applicable law or agreed to in writing, software
      10              : // distributed under the License is distributed on an "AS IS" BASIS,
      11              : // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
      12              : // See the License for the specific language governing permissions and
      13              : // limitations under the License.
      14              : 
      15              : import 'tokenizer.dart';
      16              : 
      17              : /// Stub [BrowserTokenizer] for native (non-web) targets.
      18              : ///
      19              : /// The real implementation lives in `browser_tokenizer.dart` and is selected
      20              : /// via conditional import on targets where `dart:js_interop` is available.
      21              : /// On all other targets this stub is used and throws [UnsupportedError] at
      22              : /// construction time.
      23              : class BrowserTokenizer implements Tokenizer {
      24            0 :   BrowserTokenizer([String locale = '']) {
      25            0 :     throw UnsupportedError(
      26              :       'BrowserTokenizer requires a browser environment with '
      27              :       'dart:js_interop. Use IcuTokenizer or RegExpTokenizer on native '
      28              :       'platforms.',
      29              :     );
      30              :   }
      31              : 
      32            0 :   @override
      33            0 :   List<String> tokenise(String text) => throw UnsupportedError(
      34              :     'BrowserTokenizer is only available on web targets.',
      35              :   );
      36              : }