| // 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/minitest.dart'; |
| |
| bool isDart2js = false; // TODO(ahe): Remove this field. |
| |
| var topLevelField; |
| u(a, b, c) => {"a": a, "b": b, "c": c}; |
| _v(a, b) => a + b; |
| |
| class Class<T> { |
| Class() { |
| this.field = "default value"; |
| } |
| Class.withInitialValue(this.field); |
| var field; |
| |
| Class.generative(this.field); |
| Class.redirecting(y) : this.generative(y * 2); |
| factory Class.faktory(y) => new Class.withInitialValue(y * 3); |
| factory Class.redirectingFactory(y) = Class<T>.faktory; |
| |
| m(a, b, c) => {"a": a, "b": b, "c": c}; |
| _n(a, b) => a + b; |
| noSuchMethod(invocation) => "DNU"; |
| |
| static var staticField; |
| static s(a, b, c) => {"a": a, "b": b, "c": c}; |
| static _t(a, b) => a + b; |
| } |
| |
| typedef Typedef(); |
| |
| testInvoke(mirrors) { |
| var instance = new Class(); |
| var instMirror = reflect(instance); |
| |
| expect(instMirror.invoke(#m, ['A', 'B', instance]).reflectee, |
| equals({"a": 'A', "b": 'B', "c": instance})); |
| expect(instMirror.invoke(#notDefined, []).reflectee, equals("DNU")); |
| expect(instMirror.invoke(#m, []).reflectee, equals("DNU")); // Wrong arity. |
| |
| var classMirror = instMirror.type; |
| expect(classMirror.invoke(#s, ['A', 'B', instance]).reflectee, |
| equals({"a": 'A', "b": 'B', "c": instance})); |
| expect(() => classMirror.invoke(#notDefined, []).reflectee, throws); |
| expect(() => classMirror.invoke(#s, []).reflectee, throws); // Wrong arity. |
| |
| var libMirror = classMirror.owner as LibraryMirror; |
| expect(libMirror.invoke(#u, ['A', 'B', instance]).reflectee, |
| equals({"a": 'A', "b": 'B', "c": instance})); |
| expect(() => libMirror.invoke(#notDefined, []).reflectee, throws); |
| expect(() => libMirror.invoke(#u, []).reflectee, throws); // Wrong arity. |
| } |
| |
| /// In dart2js, lists, numbers, and other objects are treated special |
| /// and their methods are invoked through a techique called interceptors. |
| testIntercepted(mirrors) { |
| { |
| var instance = 1; |
| var instMirror = reflect(instance); |
| |
| expect(instMirror.invoke(#toString, []).reflectee, equals('1')); |
| } |
| |
| var instance = []; |
| var instMirror = reflect(instance); |
| instMirror.setField(#length, 44); |
| var resultMirror = instMirror.getField(#length); |
| expect(resultMirror.reflectee, equals(44)); |
| expect(instance.length, equals(44)); |
| |
| expect( |
| instMirror.invoke(#toString, []).reflectee, |
| equals('[null, null, null, null, null, null, null, null, null, null,' |
| ' null, null, null, null, null, null, null, null, null, null,' |
| ' null, null, null, null, null, null, null, null, null, null,' |
| ' null, null, null, null, null, null, null, null, null, null,' |
| ' null, null, null, null]')); |
| } |
| |
| testFieldAccess(mirrors) { |
| var instance = new Class(); |
| |
| var libMirror = mirrors.findLibrary(#MirrorsTest); |
| var classMirror = libMirror.declarations[#Class]; |
| var instMirror = reflect(instance); |
| var fieldMirror = classMirror.declarations[#field]; |
| var future; |
| |
| expect(fieldMirror is VariableMirror, isTrue); |
| expect(fieldMirror.type, equals(mirrors.dynamicType)); |
| |
| libMirror.setField(#topLevelField, [91]); |
| expect(libMirror.getField(#topLevelField).reflectee, equals([91])); |
| expect(topLevelField, equals([91])); |
| } |
| |
| testClosureMirrors(mirrors) { |
| // TODO(ahe): Test optional parameters (named or not). |
| var closure = (x, y, z) { |
| return x + y + z; |
| }; |
| |
| var mirror = reflect(closure) as ClosureMirror; |
| |
| var funcMirror = (mirror.function) as MethodMirror; |
| expect(funcMirror.parameters.length, equals(3)); |
| |
| expect(mirror.apply([7, 8, 9]).reflectee, equals(24)); |
| } |
| |
| testInvokeConstructor(mirrors) { |
| var classMirror = reflectClass(Class); |
| |
| var instanceMirror = classMirror.newInstance(Symbol.empty, []); |
| expect(instanceMirror.reflectee is Class, equals(true)); |
| expect(instanceMirror.reflectee.field, equals("default value")); |
| |
| instanceMirror = classMirror.newInstance(#withInitialValue, [45]); |
| expect(instanceMirror.reflectee is Class, equals(true)); |
| expect(instanceMirror.reflectee.field, equals(45)); |
| |
| instanceMirror = classMirror.newInstance(#generative, [7]); |
| expect(instanceMirror.reflectee is Class, equals(true)); |
| expect(instanceMirror.reflectee.field, equals(7)); |
| |
| instanceMirror = classMirror.newInstance(#redirecting, [8]); |
| expect(instanceMirror.reflectee is Class, equals(true)); |
| expect(instanceMirror.reflectee.field, equals(16)); |
| |
| instanceMirror = classMirror.newInstance(#faktory, [9]); |
| expect(instanceMirror.reflectee is Class, equals(true)); |
| expect(instanceMirror.reflectee.field, equals(27)); |
| |
| instanceMirror = classMirror.newInstance(#redirectingFactory, [10]); |
| expect(instanceMirror.reflectee is Class, equals(true)); |
| expect(instanceMirror.reflectee.field, equals(30)); |
| } |
| |
| testReflectClass(mirrors) { |
| var classMirror = reflectClass(Class); |
| expect(classMirror is ClassMirror, equals(true)); |
| var symbolClassMirror = reflectClass(Symbol); |
| var symbolMirror = |
| symbolClassMirror.newInstance(Symbol.empty, ['withInitialValue']); |
| var objectMirror = classMirror.newInstance(symbolMirror.reflectee, [1234]); |
| expect(objectMirror.reflectee is Class, equals(true)); |
| expect(objectMirror.reflectee.field, equals(1234)); |
| } |
| |
| testNames(mirrors) { |
| var libMirror = mirrors.findLibrary(#MirrorsTest); |
| var classMirror = libMirror.declarations[#Class]; |
| var typedefMirror = libMirror.declarations[#Typedef]; |
| var methodMirror = libMirror.declarations[#testNames]; |
| var variableMirror = classMirror.declarations[#field]; |
| |
| expect(libMirror.simpleName, equals(#MirrorsTest)); |
| expect(libMirror.qualifiedName, equals(#MirrorsTest)); |
| |
| expect(classMirror.simpleName, equals(#Class)); |
| expect(classMirror.qualifiedName, equals(#MirrorsTest.Class)); |
| |
| TypeVariableMirror typeVariable = classMirror.typeVariables.single; |
| expect(typeVariable.simpleName, equals(#T)); |
| expect( |
| typeVariable.qualifiedName, equals(const Symbol('MirrorsTest.Class.T'))); |
| |
| if (!isDart2js) { |
| // TODO(ahe): Implement this in dart2js. |
| expect(typedefMirror.simpleName, equals(#Typedef)); |
| expect(typedefMirror.qualifiedName, |
| equals(const Symbol('MirrorsTest.Typedef'))); |
| |
| var typedefMirrorDeNovo = reflectType(Typedef); |
| expect(typedefMirrorDeNovo.simpleName, equals(#Typedef)); |
| expect(typedefMirrorDeNovo.qualifiedName, |
| equals(const Symbol('MirrorsTest.Typedef'))); |
| } |
| |
| expect(methodMirror.simpleName, equals(#testNames)); |
| expect(methodMirror.qualifiedName, |
| equals(const Symbol('MirrorsTest.testNames'))); |
| |
| expect(variableMirror.simpleName, equals(#field)); |
| expect(variableMirror.qualifiedName, |
| equals(const Symbol('MirrorsTest.Class.field'))); |
| } |
| |
| testLibraryUri(var value, bool check(Uri uri)) { |
| var valueMirror = reflect(value); |
| ClassMirror valueClass = valueMirror.type; |
| LibraryMirror valueLibrary = valueClass.owner as LibraryMirror; |
| Uri uri = valueLibrary.uri; |
| if (!uri.isScheme("https") || |
| uri.host != "dartlang.org" || |
| uri.path != "/dart2js-stripped-uri") { |
| expect(check(uri), isTrue); |
| } |
| } |
| |
| main() { |
| var mirrors = currentMirrorSystem(); |
| test("Test reflective method invocation", () { |
| testInvoke(mirrors); |
| }); |
| test('Test intercepted objects', () { |
| testIntercepted(mirrors); |
| }); |
| test("Test field access", () { |
| testFieldAccess(mirrors); |
| }); |
| test("Test closure mirrors", () { |
| testClosureMirrors(mirrors); |
| }); |
| test("Test invoke constructor", () { |
| testInvokeConstructor(mirrors); |
| }); |
| test("Test current library uri", () { |
| testLibraryUri( |
| new Class(), |
| // TODO(floitsch): change this to "/mirrors_test.dart" when |
| // dart2js_mirrors_test.dart has been removed. |
| (Uri uri) => uri.path.endsWith('mirrors_test.dart')); |
| }); |
| test("Test dart library uri", () { |
| testLibraryUri("test", (Uri uri) { |
| if (uri == Uri.parse('dart:core')) return true; |
| // TODO(floitsch): do we want to fake the interceptors to |
| // be in dart:core? |
| return (uri == Uri.parse('dart:_interceptors')); |
| }); |
| }); |
| test("Test simple and qualifiedName", () { |
| testNames(mirrors); |
| }); |
| test("Test reflect type", () { |
| testReflectClass(mirrors); |
| }); |
| } |