blob: 977564f052800e4c8538bb06da8b20949bf60dde [file] [log] [blame]
// Copyright (c) 2015, 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.
// @dart = 2.9
library test.library_imports_deferred;
import 'dart:mirrors';
import 'package:expect/expect.dart';
import 'stringify.dart';
import 'dart:collection' as eagercollection;
import 'dart:collection' deferred as lazycollection;
test(MirrorSystem mirrors) {
LibraryMirror thisLibrary =
mirrors.findLibrary(#test.library_imports_deferred);
LibraryMirror collection = mirrors.findLibrary(#dart.collection);
var importsOfCollection = thisLibrary.libraryDependencies
.where((dep) => dep.targetLibrary == collection)
.toList();
Expect.equals(2, importsOfCollection.length);
Expect.notEquals(importsOfCollection[0].isDeferred,
importsOfCollection[1].isDeferred); // One deferred, one not.
// Only collection is defer-imported.
LibraryDependencyMirror dep =
thisLibrary.libraryDependencies.singleWhere((dep) => dep.isDeferred);
Expect.equals(collection, dep.targetLibrary);
Expect.stringEquals(
'import dart.collection as eagercollection\n'
'import dart.collection deferred as lazycollection\n'
' hide loadLibrary\n'
'import dart.core\n'
'import dart.mirrors\n'
'import expect\n'
'import test.stringify\n',
stringifyDependencies(thisLibrary));
}
main() {
test(currentMirrorSystem());
}