buildExtensions property

@override Map<String, List<String>> get buildExtensions

Mapping from input file extension to output file extensions.

All input sources matching any key in this map will be passed as a build step to this builder. Only files with the same basename and an extension from the values in this map are expected as outputs.

• If an empty key exists, all inputs are considered matching.
• An instance of a builder must always return the same configuration. Typically, a builder will return a const map. Builders may also choose extensions based on BuilderOptions.
• Most builders will use a single input extension and one or more output extensions.

TODO(davidmorgan): add examples.

Implementation

@override
Map<String, List<String>> get buildExtensions {
  if (_config case final config?) {
    final output = config.pubspec.flutterGen.output;
    return {
      r'$package$': [
        for (final name in [
          generator.assetsName,
          generator.colorsName,
          generator.fontsName,
        ])
          join(output, name),
      ],
    };
  } else {
    return {};
  }
}