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https://github.com/carbon-language/carbon-lang.git
synced 2026-09-24 22:02:23 +01:00
Richard Smith
96a663766c
This is not part of the approved design and gets in the way of supporting `where` expressions, which are part of the approved design.
43 lines
1.0 KiB
Plaintext
43 lines
1.0 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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// RUN: %{explorer} %s 2>&1 | \
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// RUN: %{FileCheck} --match-full-lines --allow-unused-prefixes=false %s
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// RUN: %{explorer} --parser_debug --trace_file=- %s 2>&1 | \
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// RUN: %{FileCheck} --match-full-lines --allow-unused-prefixes %s
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// AUTOUPDATE: %{explorer} %s
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// CHECK: result: 0
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package ExplorerTest api;
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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: Ints = Ints.None();
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var y: Ints = Ints.One(42);
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var n: i32 = 0;
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match (y) {
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case Ints.None() => { n = n + 2; }
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case Ints.One(x: auto) => { n = x + 1 - 42; }
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case Ints.Two(a: auto, b: auto) => { n = 2; }
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}
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match (x) {
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case Ints.One(x: auto) => { n = x + 2; }
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case Ints.None() => { n = n - 1; }
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case Ints.Two(x: auto, y: auto) => { 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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