| // Copyright (c) 2013, 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 'package:expect/expect.dart'; |
| import "package:async_helper/async_helper.dart"; |
| import 'compiler_helper.dart'; |
| import 'type_mask_test_helper.dart'; |
| |
| const String TEST = """ |
| class X {} |
| returnDyn1() { |
| var a; |
| ((a = 52) == true) || ((a = 'foo') == true); |
| return a; |
| } |
| |
| returnDyn2() { |
| var a; |
| ((a = 52) == true) && ((a = 'foo') == true); |
| return a; |
| } |
| |
| returnDyn3() { |
| var a; |
| a = a == 54 ? 'foo' : 31; |
| return a; |
| } |
| |
| returnDyn4() { |
| var a; |
| ((a = 52) == true) || ((a = new X()) == true); |
| return a; |
| } |
| |
| returnDyn5() { |
| var a; |
| ((a = 52) == true) && ((a = new X()) == true); |
| return a; |
| } |
| |
| returnDyn6() { |
| var a; |
| a = a == 54 ? 'foo' : new X(); |
| return a; |
| } |
| |
| returnDyn7b(x) => x; |
| |
| returnDyn7() { |
| var a = "foo"; |
| if (a.length == 3) a = 52; |
| if ((a is int) || (a is String && true)) returnDyn7b(a); |
| return a; |
| } |
| |
| returnDyn8(x) => x; |
| |
| test8() { |
| var a = "foo"; |
| if (a.length == 3) a = 52; |
| if ((false && a is! String) || returnDyn8(a)) return a; |
| } |
| |
| returnDyn9(x) => x; |
| |
| test9() { |
| var a = "foo"; |
| if (a.length == 3) a = 52; |
| if (!(a is bool && a is bool)) returnDyn9(a); |
| } |
| |
| returnString(x) => x; |
| |
| test10() { |
| var a = "foo"; |
| if (a.length == 3) a = 52; |
| if (!(a is num) && a is String) returnString(a); |
| } |
| |
| main() { |
| returnDyn1(); |
| returnDyn2(); |
| returnDyn3(); |
| returnDyn4(); |
| returnDyn5(); |
| returnDyn6(); |
| returnDyn7(); |
| test8(); |
| test9(); |
| test10(); |
| } |
| """; |
| |
| void main() { |
| Uri uri = new Uri(scheme: 'source'); |
| var compiler = compilerFor(TEST, uri); |
| asyncTest(() => compiler.run(uri).then((_) { |
| var typesInferrer = compiler.globalInference.typesInferrerInternal; |
| var closedWorld = typesInferrer.closedWorld; |
| |
| checkReturn(String name, type) { |
| MemberElement element = findElement(compiler, name); |
| Expect.equals( |
| type, |
| simplify( |
| typesInferrer.getReturnTypeOfMember(element), closedWorld)); |
| } |
| |
| var subclassOfInterceptor = closedWorld.commonMasks.interceptorType; |
| |
| checkReturn('returnDyn1', subclassOfInterceptor); |
| checkReturn('returnDyn2', subclassOfInterceptor); |
| checkReturn('returnDyn3', subclassOfInterceptor); |
| checkReturn( |
| 'returnDyn4', closedWorld.commonMasks.dynamicType.nonNullable()); |
| checkReturn( |
| 'returnDyn5', closedWorld.commonMasks.dynamicType.nonNullable()); |
| checkReturn( |
| 'returnDyn6', closedWorld.commonMasks.dynamicType.nonNullable()); |
| checkReturn('returnDyn7', subclassOfInterceptor); |
| checkReturn('returnDyn7b', subclassOfInterceptor); |
| checkReturn('returnDyn8', subclassOfInterceptor); |
| checkReturn('returnDyn9', subclassOfInterceptor); |
| checkReturn('returnString', closedWorld.commonMasks.stringType); |
| })); |
| } |