Srujan Gaddam
c738fe1d7b
Adds the same interceptors from dart2js as JsPeerInterfaces and handles typeof differences in getReifiedType. These must be JsPeerInterfaces so that Object members can be stored in their prototype. Tests are added so that dart2js and ddc are consistent. Change-Id: Iadc3dd26957c0a21b4039c49c1c1ff162ae286e6 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/321748 Reviewed-by: Stephen Adams <sra@google.com>
89 lines
3.1 KiB
Dart
89 lines
3.1 KiB
Dart
// Copyright (c) 2023, 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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import 'dart:_interceptors';
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import 'package:js/js.dart';
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import 'package:expect/expect.dart';
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@JS()
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external void eval(String code);
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@JS()
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external JavaScriptSymbol symbol;
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@JS('symbol')
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external dynamic symbolDynamic;
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@JS('Symbol')
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external JavaScriptSymbol makeSymbol(String value);
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@JS()
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main() {
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const s = 'symbolValue';
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symbol = makeSymbol(s);
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/* toString */
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final toStringVal = 'Symbol($s)';
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Expect.equals(toStringVal, symbol.toString());
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Expect.equals(toStringVal, symbolDynamic.toString());
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// String interpolation
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Expect.equals(toStringVal, '$symbol');
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Expect.equals(toStringVal, '$symbolDynamic');
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// toString tear-offs
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var toStringTearoff = symbol.toString;
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Expect.type<String Function()>(toStringTearoff);
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Expect.equals(symbol.toString, toStringTearoff);
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Expect.equals(symbol.toString(), toStringTearoff());
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toStringTearoff = symbolDynamic.toString;
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Expect.type<String Function()>(toStringTearoff);
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Expect.equals(symbol.toString, toStringTearoff);
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Expect.equals(symbol.toString(), toStringTearoff());
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/* hashCode */
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// This value is allowed to change, but for lack of a better existing option,
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// we return 0.
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Expect.equals(0, symbol.hashCode);
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Expect.equals(0, symbolDynamic.hashCode);
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/* == */
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// Prefer `==` over `Expect.equals` so we can check dynamic vs non-dynamic
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// calls.
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Expect.isTrue(symbol == symbol);
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Expect.isTrue(symbolDynamic == symbol);
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// Different symbols with the same values are not equal.
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final differentSymbol = makeSymbol(s);
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Expect.isFalse(symbol == differentSymbol);
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Expect.isFalse(symbolDynamic == differentSymbol);
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/* noSuchMethod */
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final methodName = 'testMethod';
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final invocation = Invocation.method(Symbol(methodName), null);
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void testNoSuchMethodResult(noSuchMethodResult) {
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Expect.type<NoSuchMethodError>(noSuchMethodResult);
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Expect.contains(methodName, noSuchMethodResult.toString());
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}
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testNoSuchMethodResult(Expect.throws(() => symbol.noSuchMethod(invocation)));
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testNoSuchMethodResult(
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Expect.throws(() => symbolDynamic.noSuchMethod(invocation)));
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var noSuchMethodTearoff = symbol.noSuchMethod;
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Expect.type<dynamic Function(Invocation)>(noSuchMethodTearoff);
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Expect.equals(symbol.noSuchMethod, noSuchMethodTearoff);
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testNoSuchMethodResult(Expect.throws(() => noSuchMethodTearoff(invocation)));
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noSuchMethodTearoff = symbolDynamic.noSuchMethod;
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Expect.type<dynamic Function(Invocation)>(noSuchMethodTearoff);
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Expect.equals(symbolDynamic.noSuchMethod, noSuchMethodTearoff);
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testNoSuchMethodResult(Expect.throws(
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() => noSuchMethodTearoff(Invocation.method(Symbol(methodName), null))));
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/* runtimeType */
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var runtimeTypeResult = symbol.runtimeType;
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Expect.type<Type>(runtimeTypeResult);
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Expect.equals(symbol.runtimeType, runtimeTypeResult);
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runtimeTypeResult = symbolDynamic.runtimeType;
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Expect.type<Type>(runtimeTypeResult);
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Expect.equals(symbolDynamic.runtimeType, runtimeTypeResult);
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}
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