pkgs/ffigen/lib/src/code_generator/union.dart

// Copyright (c) 2020, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

import '../config_provider/public_ast.dart' as public_ast;
import '../visitor/ast.dart';

import 'compound.dart';

/// A binding for a C union -
///
/// ```c
/// union C {
///   int a;
///   double b;
///   float c;
/// };
/// ```
/// The generated dart code is -
/// <!-- no-source-file -->
/// ```dart
/// final class Union extends ffi.Union{
///  @ffi.Int32()
///  int a;
///
///  @ffi.Double()
///  double b;
///
///  @ffi.Float()
///  float c;
///
/// }
/// ```
class Union extends Compound {
  Union({
    super.usr,
    super.originalName,
    required super.name,
    super.isIncomplete,
    super.dartDoc,
    super.members,
    required super.context,
    super.nativeType,
    super.apiAvailability,
    super.sizeInBytes,
    super.dependencies,
  });

  @override
  int? get pack => null;

  @override
  public_ast.AstNode? toPublicAstNode() => public_ast.Union(this);

  @override
  void visit(Visitation visitation) => visitation.visitUnion(this);
}