mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-24 22:02:23 +01:00
Jon MeowandGeoff Romer
2620ba066d
Note this doesn't support other sizes or types, it just errors on them. Co-authored-by: Geoff Romer <gromer@google.com>
40 lines
766 B
Plaintext
40 lines
766 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(i32),
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Two(i32,i32)
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}
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fn main() -> i32 {
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var x: auto = Ints.None();
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var y: auto = Ints.One(42);
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var n: auto = 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(x: auto) =>
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n = x + 1 - 42;
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case Ints.Two(a: auto, b: auto) =>
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n = 2;
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}
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match (x) {
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case Ints.One(x: auto) =>
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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(x: auto, y: auto) =>
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n = 5;
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}
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return n;
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}
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// Test some alternate syntaxes
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choice MoreInts {
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None(),
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One(i32),
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Two(i32,i32),
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}
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