pkg/front_end/test/fasta/ambiguous_export_test.dart

// Copyright (c) 2017, 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.md file.

import 'package:async_helper/async_helper.dart' show asyncTest;

import 'package:expect/expect.dart' show Expect;

import 'package:front_end/src/fasta/builder/builder.dart'
    show InvalidTypeBuilder;

import 'package:front_end/src/fasta/compiler_context.dart' show CompilerContext;

import 'package:front_end/src/fasta/dill/dill_library_builder.dart'
    show DillLibraryBuilder;

import 'package:front_end/src/fasta/dill/dill_target.dart' show DillTarget;

import 'package:kernel/ast.dart'
    show Field, Library, Name, Program, StringLiteral;

main() async {
  await asyncTest(() async {
    Library library = new Library(Uri.parse("org.dartlang.fasta:library"));
    Field field = new Field(new Name("_exports#", library),
        initializer: new StringLiteral('{"main":"Problem with main"}'));
    library.addMember(field);
    Program program = new Program(libraries: <Library>[library]);
    await CompilerContext.runWithDefaultOptions((CompilerContext c) async {
      DillTarget target =
          new DillTarget(c.options.ticker, null, c.options.target);
      target.loader.appendLibraries(program);
      DillLibraryBuilder builder = target.loader.read(library.importUri, -1);
      await target.loader.buildOutline(builder);
      builder.finalizeExports();
      var mainExport = builder.exportScope.local["main"];
      Expect.isTrue(mainExport is InvalidTypeBuilder);
    });
  });
}