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https://github.com/carbon-language/carbon-lang.git
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Geoff Romer
853360345e
* Make parentheses optional for alternatives with no arguments. * Use `,` instead of `;` as separator for alternatives, and make the trailing separator optional.
33 lines
675 B
Plaintext
33 lines
675 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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choice Ints {
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None,
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One(Int),
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Two(Int,Int)
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}
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fn main() -> Int {
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var auto: x = Ints.None();
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var auto: y = Ints.One(42);
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var auto: n = 0;
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match (y) {
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case Ints.None =>
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n = n + 2;
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case Ints.One(auto: x) =>
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n = x + 1 - 42;
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case Ints.Two(auto: a, auto: b) =>
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n = 2;
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}
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match (x) {
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case Ints.One(auto: x) =>
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n = x + 2;
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case Ints.None() =>
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n = n - 1;
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case Ints.Two(auto: x, auto: y) =>
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n = 5;
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}
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return n;
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}
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