Alexander Aprelev
cdf7bf9c78
This relies on runtime check of Map-typed variable initialization. TEST=kernel_binary_flowgraph_test Change-Id: Ia9be2644208883739f5896a223dcbe2b59c98114 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/482021 Reviewed-by: Slava Egorov <vegorov@google.com>
35 lines
939 B
Dart
35 lines
939 B
Dart
// Copyright (c) 2026, 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:_compact_hash" show createConstMapFromMapOfDeeplyImmutables;
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import "package:expect/expect.dart";
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@pragma('vm:deeply-immutable')
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final class Foo {
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final Map<String, Object> bar;
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Foo(this.bar);
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}
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main() {
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final foo = Foo(const {"abc": "def"});
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Expect.equals(1, foo.bar.length);
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Expect.throws(() => Foo({"abc": "def"}), (e) => e is ArgumentError);
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final foo1 = Foo(createConstMapFromMapOfDeeplyImmutables({"abc": "def"}));
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Expect.equals(1, foo1.bar.length);
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Expect.throws(
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() => Foo({"ghi": foo, "jkl": foo1}),
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(e) => e is ArgumentError,
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);
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final foo2 = Foo(
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createConstMapFromMapOfDeeplyImmutables({"ghi": foo, "jkl": foo1}),
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);
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Expect.equals(2, foo2.bar.length);
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}
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