dart-sass/lib/src/callable.dart
2016-10-28 15:28:05 -07:00

22 lines
886 B
Dart

// Copyright 2016 Google Inc. Use of this source code is governed by an
// MIT-style license that can be found in the LICENSE file or at
// https://opensource.org/licenses/MIT.
export 'callable/built_in.dart';
export 'callable/plain_css.dart';
export 'callable/user_defined.dart';
/// An interface for objects, such as functions and mixins, that can be invoked
/// from Sass by passing in arguments.
abstract class Callable {
/// The callable's name.
String get name;
// TODO(nweiz): I'd like to include the argument declaration on this interface
// as well, but supporting overloads for built-in callables makes that more
// difficult. Ideally, we'd define overloads as purely an implementation
// detail of functions, using a helper method. But that would need to
// duplicate a lot of the logic in _PerformVisitor, and I can't find an elegant
// way to do that.
}