Robert Nystrom
dbaf041ae4
Change-Id: Ia3238c1781422ec5eb7a219a5cf8af645a4c5876 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/409000 Commit-Queue: Bob Nystrom <rnystrom@google.com> Reviewed-by: Lasse Nielsen <lrn@google.com> Auto-Submit: Bob Nystrom <rnystrom@google.com>
32 lines
1.2 KiB
Dart
32 lines
1.2 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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/// Test where a pattern does and does not create a context type that leads to
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/// int-to-double conversion.
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import "package:expect/expect.dart";
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main() {
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// No coercion during runtime destructuring.
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(int, int) record = (1, 2);
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var (double x, double y) = record;
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// ^^^^^^^^
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// [analyzer] COMPILE_TIME_ERROR.PATTERN_TYPE_MISMATCH_IN_IRREFUTABLE_CONTEXT
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// ^
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// [cfe] The matched value of type 'int' isn't assignable to the required type 'double'.
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// ^^^^^^^^
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// [analyzer] COMPILE_TIME_ERROR.PATTERN_TYPE_MISMATCH_IN_IRREFUTABLE_CONTEXT
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// ^
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// [cfe] The matched value of type 'int' isn't assignable to the required type 'double'.
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// Non-exhaustive since double case doesn't cover uncoerced int type.
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var result = switch (123) {
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// ^^^^^^
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// [analyzer] COMPILE_TIME_ERROR.NON_EXHAUSTIVE_SWITCH_EXPRESSION
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// ^
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// [cfe] The type 'int' is not exhaustively matched by the switch cases since it doesn't match 'int()'.
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double d => 'wrong',
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};
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}
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