mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-23 15:23:46 +00:00
41 lines
1.2 KiB
Plaintext
41 lines
1.2 KiB
Plaintext
LL| |#![feature(coverage_attribute)]
|
|
LL| |//@ edition: 2021
|
|
LL| |//@ compile-flags: -Zcoverage-options=branch
|
|
LL| |//@ llvm-cov-flags: --show-branches=count
|
|
LL| |
|
|
LL| |macro_rules! no_merge {
|
|
LL| | () => {
|
|
LL| | for _ in 0..1 {}
|
|
LL| | };
|
|
LL| |}
|
|
LL| |
|
|
LL| 3|fn let_else(value: Option<&str>) {
|
|
LL| 3| no_merge!();
|
|
LL| |
|
|
LL| 3| let Some(x) = value else {
|
|
^2
|
|
------------------
|
|
| Branch (LL:9): [True: 2, False: 1]
|
|
------------------
|
|
LL| 1| say("none");
|
|
LL| 1| return;
|
|
LL| | };
|
|
LL| |
|
|
LL| 2| say(x);
|
|
LL| 3|}
|
|
LL| |
|
|
LL| |#[coverage(off)]
|
|
LL| |fn say(message: &str) {
|
|
LL| | core::hint::black_box(message);
|
|
LL| |}
|
|
LL| |
|
|
LL| |#[coverage(off)]
|
|
LL| |fn main() {
|
|
LL| | let_else(Some("x"));
|
|
LL| | let_else(Some("x"));
|
|
LL| | let_else(None);
|
|
LL| |}
|
|
LL| |
|
|
LL| |// FIXME(#124118) Actually instrument let-else for branch coverage.
|
|
|