blob: 99558ee55987fe09daee7b4d3197712338376443 [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 An expression like:
/// { ...a, ...b }
/// Is syntactically parsed as [mapOrSetLiteral]. To determine whether it
/// actually is a map or set, the surrounding context is used. Given an
/// [mapOrSetLiteral] with context type [C]:
/// If [Set<Null>] is assignable to [C], and [Map<Null, Null>] is not
/// assignable to [C], then the collection is a set literal.
/// Otherwise, it is a map literal.
/// In other words, if it can only be a set, it is. Otherwise, it's a map.
/// @description Checks that if [a] is a set literal and [b] is a map literal,
/// it's a compile error.
/// @author
main() {
List list = [1, 12, 24];
Map map = {1: 1, "test": 1, 14: null};
var res = {...list,};
// ^^^^^^^^^^^^^^^^^
// [analyzer] unspecified
// [cfe] unspecified