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Jon Ross-Perkins
eac7c2bda4
This was an offshoot of the discussion about how much boilerplate we could remove. lit requires RUN lines be there, everything else is optional.
34 lines
1.7 KiB
Plaintext
34 lines
1.7 KiB
Plaintext
// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
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// Exceptions. See /LICENSE for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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// AUTOUPDATE
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// RUN: %{not} %{explorer-run}
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// RUN: %{not} %{explorer-run-trace}
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package ExplorerTest api;
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choice AB {
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A(),
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B()
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}
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fn F() -> AB { return AB.A(); }
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fn Main() -> i32 {
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// Note, this match is exhaustive, but it exceeds our depth limit.
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match ((F(), F(), F(), F(), F(), F(), F(), F(), F())) {
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case (AB.A(), AB.A(), AB.A(), AB.A(), AB.A(), AB.A(), AB.A(), AB.A(), AB.A()) => { return 0; }
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case (AB.B(), AB.A(), AB.A(), AB.A(), AB.A(), AB.A(), AB.A(), AB.A(), AB.A()) => { return 1; }
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case (_: AB, AB.B(), AB.A(), AB.A(), AB.A(), AB.A(), AB.A(), AB.A(), AB.A()) => { return 2; }
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case (_: AB, _: AB, AB.B(), AB.A(), AB.A(), AB.A(), AB.A(), AB.A(), AB.A()) => { return 3; }
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case (_: AB, _: AB, _: AB, AB.B(), AB.A(), AB.A(), AB.A(), AB.A(), AB.A()) => { return 4; }
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case (_: AB, _: AB, _: AB, _: AB, AB.B(), AB.A(), AB.A(), AB.A(), AB.A()) => { return 5; }
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case (_: AB, _: AB, _: AB, _: AB, _: AB, AB.B(), AB.A(), AB.A(), AB.A()) => { return 6; }
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case (_: AB, _: AB, _: AB, _: AB, _: AB, _: AB, AB.B(), AB.A(), AB.A()) => { return 7; }
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case (_: AB, _: AB, _: AB, _: AB, _: AB, _: AB, _: AB, AB.B(), AB.A()) => { return 8; }
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case (_: AB, _: AB, _: AB, _: AB, _: AB, _: AB, _: AB, _: AB, AB.B()) => { return 9; }
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}
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// CHECK:STDERR: COMPILATION ERROR: {{.*}}/explorer/testdata/match/fail_exhaustive_exponential_9x.carbon:[[@LINE+1]]: non-exhaustive match may allow control-flow to reach the end of a function that provides a `->` return type
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}
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