mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-27 22:02:33 +01:00
Jon Meow
a03536a196
Doesn't add much logic, only takes advantage of parser structure for the ordering enforcement. Note import_nonexistent tests should probably fail, but writing import tests needs a chain of functionality, and I figured I'd just start adding some to validate the syntax (not adding existent imports because that'd require multi-file structure).
42 lines
804 B
Plaintext
42 lines
804 B
Plaintext
// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
|
|
// Exceptions. See /LICENSE for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
|
|
package ExecutableSemanticsTest api;
|
|
|
|
choice Ints {
|
|
None,
|
|
One(i32),
|
|
Two(i32,i32)
|
|
}
|
|
|
|
fn main() -> i32 {
|
|
var x: auto = Ints.None();
|
|
var y: auto = Ints.One(42);
|
|
var n: auto = 0;
|
|
match (y) {
|
|
case Ints.None =>
|
|
n = n + 2;
|
|
case Ints.One(x: auto) =>
|
|
n = x + 1 - 42;
|
|
case Ints.Two(a: auto, b: auto) =>
|
|
n = 2;
|
|
}
|
|
match (x) {
|
|
case Ints.One(x: auto) =>
|
|
n = x + 2;
|
|
case Ints.None() =>
|
|
n = n - 1;
|
|
case Ints.Two(x: auto, y: auto) =>
|
|
n = 5;
|
|
}
|
|
return n;
|
|
}
|
|
|
|
// Test some alternate syntaxes
|
|
choice MoreInts {
|
|
None(),
|
|
One(i32),
|
|
Two(i32,i32),
|
|
}
|