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// 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.
// @dart = 2.9
library test.invoke_test;
import 'dart:mirrors';
import 'dart:async' show Future;
import 'package:expect/expect.dart';
class C {
var field;
C() : this.field = 'default';
C.named(this.field);
get getter => 'get $field';
set setter(v) => field = 'set $v';
method(x, y, z) => '$x+$y+$z';
toString() => 'a C';
noSuchMethod(invocation) => 'DNU';
static var staticField = 'initial';
static get staticGetter => 'sget $staticField';
static set staticSetter(v) => staticField = 'sset $v';
static staticFunction(x, y) => "($x,$y)";
}
var libraryField = 'a priori';
get libraryGetter => 'lget $libraryField';
set librarySetter(v) => libraryField = 'lset $v';
libraryFunction(x, y) => '$x$y';
testSync() {
var result;
// InstanceMirror invoke
C c = new C();
InstanceMirror im = reflect(c);
result = im.invoke(const Symbol('method'), [2, 4, 8]);
Expect.equals('2+4+8', result.reflectee);
result = im.invoke(const Symbol('doesntExist'), [2, 4, 8]);
Expect.equals('DNU', result.reflectee);
result = im.invoke(const Symbol('method'), [2, 4]); // Wrong arity.
Expect.equals('DNU', result.reflectee);
// InstanceMirror invokeGetter
result = im.getField(const Symbol('getter'));
Expect.equals('get default', result.reflectee);
result = im.getField(const Symbol('field'));
Expect.equals('default', result.reflectee);
result = im.getField(const Symbol('doesntExist'));
Expect.equals('DNU', result.reflectee);
// InstanceMirror invokeSetter
result = im.setField(const Symbol('setter'), 'foo');
Expect.equals('foo', result.reflectee);
Expect.equals('set foo', c.field);
Expect.equals('set foo', im.getField(const Symbol('field')).reflectee);
result = im.setField(const Symbol('field'), 'bar');
Expect.equals('bar', result.reflectee);
Expect.equals('bar', c.field);
Expect.equals('bar', im.getField(const Symbol('field')).reflectee);
result = im.setField(const Symbol('doesntExist'), 'bar');
Expect.equals('bar', result.reflectee);
// ClassMirror invoke
ClassMirror cm = reflectClass(C);
result = cm.invoke(const Symbol('staticFunction'), [3, 4]);
Expect.equals('(3,4)', result.reflectee);
Expect.throwsNoSuchMethodError(
() => cm.invoke(const Symbol('doesntExist'), [3, 4]), 'Not defined');
Expect.throwsNoSuchMethodError(
() => cm.invoke(const Symbol('staticFunction'), [3]), 'Wrong arity');
// ClassMirror invokeGetter
result = cm.getField(const Symbol('staticGetter'));
Expect.equals('sget initial', result.reflectee);
result = cm.getField(const Symbol('staticField'));
Expect.equals('initial', result.reflectee);
Expect.throwsNoSuchMethodError(
() => cm.getField(const Symbol('doesntExist')), 'Not defined');
// ClassMirror invokeSetter
result = cm.setField(const Symbol('staticSetter'), 'sfoo');
Expect.equals('sfoo', result.reflectee);
Expect.equals('sset sfoo', C.staticField);
Expect.equals(
'sset sfoo', cm.getField(const Symbol('staticField')).reflectee);
result = cm.setField(const Symbol('staticField'), 'sbar');
Expect.equals('sbar', result.reflectee);
Expect.equals('sbar', C.staticField);
Expect.equals('sbar', cm.getField(const Symbol('staticField')).reflectee);
Expect.throwsNoSuchMethodError(
() => cm.setField(const Symbol('doesntExist'), 'sbar'), 'Not defined');
// ClassMirror invokeConstructor
result = cm.newInstance(Symbol.empty, []);
Expect.isTrue(result.reflectee is C);
Expect.equals('default', result.reflectee.field);
result = cm.newInstance(const Symbol('named'), ['my value']);
Expect.isTrue(result.reflectee is C);
Expect.equals('my value', result.reflectee.field);
Expect.throwsNoSuchMethodError(
() => cm.newInstance(const Symbol('doesntExist'), ['my value']),
'Not defined');
Expect.throwsNoSuchMethodError(
() => cm.newInstance(const Symbol('named'), []), 'Wrong arity');
// LibraryMirror invoke
LibraryMirror lm = cm.owner as LibraryMirror;
result = lm.invoke(const Symbol('libraryFunction'), [':', ')']);
Expect.equals(':)', result.reflectee);
Expect.throwsNoSuchMethodError(
() => lm.invoke(const Symbol('doesntExist'), [':', ')']), 'Not defined');
Expect.throwsNoSuchMethodError(
() => lm.invoke(const Symbol('libraryFunction'), [':']), 'Wrong arity');
// LibraryMirror invokeGetter
result = lm.getField(const Symbol('libraryGetter'));
Expect.equals('lget a priori', result.reflectee);
result = lm.getField(const Symbol('libraryField'));
Expect.equals('a priori', result.reflectee);
Expect.throwsNoSuchMethodError(
() => lm.getField(const Symbol('doesntExist')), 'Not defined');
// LibraryMirror invokeSetter
result = lm.setField(const Symbol('librarySetter'), 'lfoo');
Expect.equals('lfoo', result.reflectee);
Expect.equals('lset lfoo', libraryField);
Expect.equals(
'lset lfoo', lm.getField(const Symbol('libraryField')).reflectee);
result = lm.setField(const Symbol('libraryField'), 'lbar');
Expect.equals('lbar', result.reflectee);
Expect.equals('lbar', libraryField);
Expect.equals('lbar', lm.getField(const Symbol('libraryField')).reflectee);
Expect.throwsNoSuchMethodError(
() => lm.setField(const Symbol('doesntExist'), 'lbar'), 'Not defined');
}
main() {
testSync();
}