| // 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. |
| |
| // @dart = 2.7 |
| |
| /*member: main:[null]*/ |
| main() { |
| exposeThis1(); |
| exposeThis2(); |
| exposeThis3(); |
| exposeThis4(); |
| exposeThis5(); |
| exposeThis6(); |
| exposeThis7(); |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| // Expose this through a top level method invocation. |
| //////////////////////////////////////////////////////////////////////////////// |
| |
| /*member: _method1:[null]*/ |
| _method1(/*[exact=Class1]*/ o) {} |
| |
| class Class1 { |
| // The inferred type of the field includes `null` because `this` has been |
| // exposed before its initialization. |
| /*member: Class1.field:[null|exact=JSUInt31]*/ |
| var field; |
| |
| /*member: Class1.:[exact=Class1]*/ |
| Class1() { |
| _method1(this); |
| /*update: [exact=Class1]*/ field = 42; |
| } |
| } |
| |
| /*member: exposeThis1:[exact=Class1]*/ |
| exposeThis1() => new Class1(); |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| // Expose this trough a instance method invocation on this. |
| //////////////////////////////////////////////////////////////////////////////// |
| |
| class Class2 { |
| /*member: Class2.field:[null|exact=JSUInt31]*/ |
| var field; |
| |
| /*member: Class2.:[exact=Class2]*/ |
| Class2() { |
| /*invoke: [exact=Class2]*/ method(); |
| /*update: [exact=Class2]*/ field = 42; |
| } |
| |
| /*member: Class2.method:[null]*/ |
| method() {} |
| } |
| |
| /*member: exposeThis2:[exact=Class2]*/ |
| exposeThis2() => new Class2(); |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| // A this expression itself does _not_ expose this. |
| //////////////////////////////////////////////////////////////////////////////// |
| |
| class Class3 { |
| /*member: Class3.field:[exact=JSUInt31]*/ |
| var field; |
| |
| /*member: Class3.:[exact=Class3]*/ |
| Class3() { |
| this; |
| /*update: [exact=Class3]*/ field = 42; |
| } |
| } |
| |
| /*member: exposeThis3:[exact=Class3]*/ |
| exposeThis3() => new Class3(); |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| // Expose this through a static field assignment. |
| //////////////////////////////////////////////////////////////////////////////// |
| |
| /*member: field1:[null|exact=Class4]*/ |
| var field1; |
| |
| class Class4 { |
| /*member: Class4.field:[null|exact=JSUInt31]*/ |
| var field; |
| |
| /*member: Class4.:[exact=Class4]*/ |
| Class4() { |
| field1 = this; |
| /*update: [exact=Class4]*/ field = 42; |
| } |
| } |
| |
| /*member: exposeThis4:[exact=Class4]*/ |
| exposeThis4() => new Class4(); |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| // Expose this through an instance field assignment. |
| //////////////////////////////////////////////////////////////////////////////// |
| |
| class Class5 { |
| /*member: Class5.field:[null|exact=JSUInt31]*/ |
| var field; |
| |
| /*member: Class5.:[exact=Class5]*/ |
| Class5(/*[null]*/ o) { |
| o. /*update: [null]*/ field5 = this; |
| /*update: [exact=Class5]*/ field = 42; |
| } |
| } |
| |
| /*member: exposeThis5:[exact=Class5]*/ |
| exposeThis5() => new Class5(null); |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| // Expose this through a local variable assignment. |
| //////////////////////////////////////////////////////////////////////////////// |
| |
| class Class6 { |
| /*member: Class6.field:[null|exact=JSUInt31]*/ |
| var field; |
| |
| /*member: Class6.:[exact=Class6]*/ |
| Class6() { |
| // ignore: UNUSED_LOCAL_VARIABLE |
| var o; |
| o = this; |
| /*update: [exact=Class6]*/ field = 42; |
| } |
| } |
| |
| /*member: exposeThis6:[exact=Class6]*/ |
| exposeThis6() => new Class6(); |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| // Expose this through a local variable initializer. |
| //////////////////////////////////////////////////////////////////////////////// |
| |
| class Class7 { |
| /*member: Class7.field:[null|exact=JSUInt31]*/ |
| var field; |
| |
| /*member: Class7.:[exact=Class7]*/ |
| Class7() { |
| // ignore: UNUSED_LOCAL_VARIABLE |
| var o = this; |
| /*update: [exact=Class7]*/ field = 42; |
| } |
| } |
| |
| /*member: exposeThis7:[exact=Class7]*/ |
| exposeThis7() => new Class7(); |