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https://github.com/dart-lang/sdk
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84497e41ca
Adds an experimental `@trustTypes` annotation which can be used during migration to static interop to preserve the older semantics for JS interop. Change-Id: Ic00a6c968b15f8c8f5d0840b82db5a6670eaf0eb Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/241362 Reviewed-by: Riley Porter <rileyporter@google.com> Reviewed-by: Srujan Gaddam <srujzs@google.com> Reviewed-by: Johnni Winther <johnniwinther@google.com> Commit-Queue: Joshua Litt <joshualitt@google.com>
78 lines
2.4 KiB
Dart
78 lines
2.4 KiB
Dart
// Copyright (c) 2022, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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// Test that the [trustTypes] annotation has the same semantics as the older
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// style of js interop.
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import 'package:js/js.dart';
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import 'package:expect/expect.dart';
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class NonExistent {}
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@JS()
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@staticInterop
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@trustTypes
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class TrustMe {
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external factory TrustMe();
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}
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extension TrustMeExtension on TrustMe {
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external List<NonExistent> get foos;
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external List<NonExistent> callFoos();
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external List<NonExistent> callFoos1(int ignored);
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external List<NonExistent> callFoos2(int ignored1, int ignored2);
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external List<NonExistent> callFoos3(
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int ignored1, int ignored2, int ignored3);
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external List<NonExistent> callFoos4(
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int ignored1, int ignored2, int ignored3, int ignored4);
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external List<NonExistent> callFoos5(
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int ignored1, int ignored2, int ignored3, int ignored4, int ignored5);
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external String get fooPrimitive;
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}
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@JS()
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external void eval(String code);
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void main() {
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eval(r'''
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TrustMe = function TrustMe() {
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this.foos = 'not a list 1';
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this.fooPrimitive = 5;
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this.callFoos = function() {
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return 'not a list 2';
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}
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this.callFoos1 = function(a) {
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return 'not a list 3';
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}
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this.callFoos2 = function(a, b) {
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return 'not a list 4';
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}
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this.callFoos3 = function(a, b, c) {
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return 'not a list 5';
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}
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this.callFoos4 = function(a, b, c, d) {
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return 'not a list 6';
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}
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this.callFoos5 = function(a, b, c, d, e) {
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return 'not a list 7';
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}
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}
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''');
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final trusted = TrustMe();
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Expect.equals('not a list 1', trusted.foos.toString());
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Expect.equals('not a list 2', trusted.callFoos().toString());
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Expect.equals('not a list 3', trusted.callFoos1(1).toString());
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Expect.equals('not a list 4', trusted.callFoos2(1, 1).toString());
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Expect.equals('not a list 5', trusted.callFoos3(1, 1, 1).toString());
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Expect.equals('not a list 6', trusted.callFoos4(1, 1, 1, 1).toString());
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final falseList = trusted.callFoos5(1, 1, 1, 1, 1);
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Expect.equals('not a list 7', falseList.toString());
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Expect.throws(() => falseList.removeAt(0));
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final falseString = trusted.fooPrimitive;
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Expect.equals(5, falseString);
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Expect.throws(() => falseString.codeUnitAt(0));
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}
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