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https://github.com/carbon-language/carbon-lang.git
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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.
27 lines
780 B
Plaintext
27 lines
780 B
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 Opt {
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None(),
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Some(i32)
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}
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fn A(a: Opt, b: Opt) -> i32 {
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match ((a, b)) {
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case (Opt.Some(n: i32), _: auto) => { return n; }
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case (_: auto, Opt.Some(n: i32)) => { return n; }
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}
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// CHECK:STDERR: COMPILATION ERROR: {{.*}}/explorer/testdata/match/fail_not_exhaustive.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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fn Main() -> i32 {
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return A(Opt.None(), Opt.Some(1));
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}
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