blob: de3569e57b640360350de7f67bedfcd21dd284a0 [file] [log] [blame]
// Copyright (c) 2019, 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.
/// @assertion From the Unified collection Spec:
/// A spreadElement starting with [...] is a constant element if its expression
/// is constant and it evaluates to a constant List, Set or Map instance
/// originally created by a list, set or map literal. It is a potentially
/// constant element if the expression is a potentially constant expression.
/// @description: Checks that constant map spread element can be potentially
/// constant map.
/// @author
import "../../Utils/expect.dart";
class A {
const A();
class B extends A {
const B();
class MyClass {
final String a;
const MyClass(Object o) : a = o as String;
main() {
const Map m1 = {...(A() is B ? {1: 12345} : <Object, Object>{})};
Expect.mapEquals(<Object, Object>{}, m1);
const Map m2 = {...(A() is A ? {12345: 4} : {0: 1})};
Expect.mapEquals({12345: 4}, m2);
const Map m3 = {...(MyClass("test") is MyClass ? {"a": "b"} : <int, int>{})};
Expect.mapEquals({"a": "b"}, m3);