| // Copyright (c) 2011, 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 MirrorsTest; |
| |
| import 'dart:mirrors'; |
| import 'package:expect/expect.dart'; |
| |
| bool isNSMContainingFieldName(e, String fieldName, bool isSetter) { |
| if (e is! NoSuchMethodError) return false; |
| String needle = fieldName; |
| if (isSetter) needle += "="; |
| return "$e".contains(needle) && !"$e".contains(needle + "="); |
| } |
| |
| final finalTopLevel = 0; |
| |
| class A { |
| final finalInstance = 0; |
| static final finalStatic = 0; |
| } |
| |
| class B { |
| B(a, b); |
| factory B.fac(a, b) => new B(a, b); |
| } |
| |
| testMessageContents() { |
| var mirrors = currentMirrorSystem(); |
| var libMirror = mirrors.findLibrary(#MirrorsTest); |
| Expect.throws(() => libMirror.invoke(#foo, []), |
| (e) => isNSMContainingFieldName(e, "foo", false)); |
| Expect.throws(() => libMirror.getField(#foo), |
| (e) => isNSMContainingFieldName(e, "foo", false)); |
| Expect.throws(() => libMirror.setField(#foo, null), |
| (e) => isNSMContainingFieldName(e, "foo", true)); |
| Expect.throws(() => libMirror.setField(#finalTopLevel, null), |
| (e) => isNSMContainingFieldName(e, "finalTopLevel", true)); |
| |
| var classMirror = reflectClass(A); |
| Expect.throws(() => classMirror.invoke(#foo, []), |
| (e) => isNSMContainingFieldName(e, "foo", false)); |
| Expect.throws(() => classMirror.getField(#foo), |
| (e) => isNSMContainingFieldName(e, "foo", false)); |
| Expect.throws(() => classMirror.setField(#foo, null), |
| (e) => isNSMContainingFieldName(e, "foo", true)); |
| Expect.throws(() => classMirror.setField(#finalStatic, null), |
| (e) => isNSMContainingFieldName(e, "finalStatic", true)); |
| |
| var instanceMirror = reflect(new A()); |
| Expect.throws(() => instanceMirror.invoke(#foo, []), |
| (e) => isNSMContainingFieldName(e, "foo", false)); |
| Expect.throws(() => instanceMirror.getField(#foo), |
| (e) => isNSMContainingFieldName(e, "foo", false)); |
| Expect.throws(() => instanceMirror.setField(#foo, null), |
| (e) => isNSMContainingFieldName(e, "foo", true)); |
| Expect.throws(() => instanceMirror.setField(#finalInstance, null), |
| (e) => isNSMContainingFieldName(e, "finalInstance", true)); |
| } |
| |
| expectMatchingErrors(reflectiveAction, baseAction) { |
| var reflectiveError, baseError; |
| try { |
| reflectiveAction(); |
| } catch (e) { |
| reflectiveError = e; |
| } |
| |
| try { |
| baseAction(); |
| } catch (e) { |
| baseError = e; |
| } |
| |
| if (baseError.toString() != reflectiveError.toString()) { |
| print("\n==Base==\n $baseError"); |
| print("\n==Reflective==\n $reflectiveError"); |
| throw "Expected matching errors"; |
| } |
| } |
| |
| testMatchingMessages() { |
| var mirrors = currentMirrorSystem(); |
| var libMirror = mirrors.findLibrary(#MirrorsTest); |
| expectMatchingErrors(() => libMirror.invoke(#foo, []), () => foo()); |
| expectMatchingErrors(() => libMirror.getField(#foo), () => foo); |
| expectMatchingErrors(() => libMirror.setField(#foo, null), () => foo = null); |
| expectMatchingErrors(() => libMirror.setField(#finalTopLevel, null), |
| () => finalTopLevel = null); |
| |
| var classMirror = reflectClass(A); |
| expectMatchingErrors(() => classMirror.invoke(#foo, []), () => A.foo()); |
| expectMatchingErrors(() => classMirror.getField(#foo), () => A.foo); |
| expectMatchingErrors( |
| () => classMirror.setField(#foo, null), () => A.foo = null); |
| expectMatchingErrors(() => classMirror.setField(#finalStatic, null), |
| () => A.finalStatic = null); |
| expectMatchingErrors(() => classMirror.newInstance(#constructor, [1, 2, 3]), |
| () => new A.constructor(1, 2, 3)); |
| |
| var instanceMirror = reflect(new A()); |
| expectMatchingErrors( |
| () => instanceMirror.invoke(#foo, []), () => new A().foo()); |
| expectMatchingErrors(() => instanceMirror.getField(#foo), () => new A().foo); |
| expectMatchingErrors( |
| () => instanceMirror.setField(#foo, null), () => new A().foo = null); |
| expectMatchingErrors(() => instanceMirror.setField(#finalInstance, null), |
| () => new A().finalInstance = null); |
| } |
| |
| main() { |
| testMessageContents(); |
| testMatchingMessages(); //# dart2js: ok |
| } |