| // 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 file. |
| |
| // VMOptions=--lazy-dispatchers |
| // VMOptions=--no-lazy-dispatchers |
| |
| import "package:expect/expect.dart"; |
| |
| T f<T>(T x) => x; |
| |
| int intToInt(int x) => x; |
| String stringToString(String x) => x; |
| String stringAndIntToString(String x, int y) => x; |
| |
| test(intFuncDynamic, stringFuncDynamic, dynamicFuncDynamic) { |
| Expect.isTrue(intFuncDynamic is int Function(int)); |
| Expect.isFalse(intFuncDynamic is String Function(String)); |
| Expect.equals(intFuncDynamic(1), 1); |
| Expect.equals("${intFuncDynamic.runtimeType}", "${intToInt.runtimeType}"); |
| Expect.throwsTypeError(() { |
| intFuncDynamic('oops'); |
| }); |
| Expect.throwsNoSuchMethodError(() { |
| intFuncDynamic<String>('oops'); |
| }); |
| Expect.isTrue(stringFuncDynamic is String Function(String)); |
| Expect.isFalse(stringFuncDynamic is int Function(int)); |
| Expect.equals(stringFuncDynamic('hello'), 'hello'); |
| Expect.equals( |
| "${stringFuncDynamic.runtimeType}", "${stringToString.runtimeType}"); |
| Expect.throwsTypeError(() { |
| stringFuncDynamic(1); |
| }); |
| Expect.throwsNoSuchMethodError(() { |
| stringFuncDynamic<int>(1); |
| }); |
| Expect.throwsNoSuchMethodError(() { |
| dynamicFuncDynamic<int>(1); |
| }); |
| } |
| |
| main() { |
| int Function(int) if1 = f; |
| String Function(String) sf1 = f; |
| dynamic Function(dynamic) df1 = f; |
| test(if1, sf1, df1); |
| |
| T local<T>(T x) => x; |
| |
| int Function(int) if2 = local; |
| String Function(String) sf2 = local; |
| dynamic Function(dynamic) df2 = local; |
| test(if2, sf2, df2); |
| |
| dynamic bar<X>() { |
| String foo<T>(X x, T t) { |
| return "$X, $T"; |
| } |
| |
| String Function(X, int) x = foo; |
| return x; |
| } |
| |
| dynamic fn = bar<String>(); |
| Expect.equals("${fn.runtimeType}", "${stringAndIntToString.runtimeType}"); |
| Expect.equals(fn("a", 1), "String, int"); |
| } |