| // 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. |
| |
| // @dart = 2.7 |
| |
| /*library: |
| output_units=[f1: {units: [1{lib}], usedBy: [], needs: []}], |
| steps=[lib=(f1)] |
| */ |
| import 'lib.dart' deferred as lib; |
| |
| /*member: main:member_unit=main{}*/ |
| main() async { |
| await lib.loadLibrary(); |
| |
| // inferred return-type in closures: |
| // lib.B f1() => lib.B(); // Compile time error(see tests/dart2js) |
| var f2 = /*closure_unit=main{}*/ () => |
| lib.B(); // no compile error, but f1 has inferred type: () -> d.B |
| |
| // inferred type-arguments |
| // lib.list = <lib.B>[]; // Compile time error(see tests/dart2js) |
| lib.list = []; // no error, but type parameter was injected here |
| lib.list = lib.list |
| .map(/*closure_unit=main{}*/ (x) => x.value) |
| .toList(); // no Compile error, type parameter inferred on closure and map<T>. |
| } |
