mirror of https://github.com/rust-lang/rust.git
37 lines
1.2 KiB
Rust
37 lines
1.2 KiB
Rust
// skip-filecheck
|
|
// EMIT_MIR_FOR_EACH_PANIC_STRATEGY
|
|
// Test that StorageDead and Drops are generated properly for bindings in
|
|
// matches:
|
|
// * The MIR should only contain a single drop of `s` and `t`: at the end
|
|
// of their respective arms.
|
|
// * StorageDead and StorageLive statements are correctly matched up on
|
|
// non-unwind paths.
|
|
// * The visibility scopes of the match arms should be disjoint, and contain.
|
|
// all of the bindings for that scope.
|
|
// * No drop flags are used.
|
|
|
|
// EMIT_MIR match_arm_scopes.complicated_match SimplifyCfg-initial.after ElaborateDrops.after
|
|
fn complicated_match(cond: bool, items: (bool, bool, String)) -> i32 {
|
|
match items {
|
|
(false, a, s) | (a, false, s) if if cond { return 3 } else { a } => 1,
|
|
(true, b, t) | (false, b, t) => 2,
|
|
}
|
|
}
|
|
|
|
const CASES: &[(bool, bool, bool, i32)] = &[
|
|
(false, false, false, 2),
|
|
(false, false, true, 1),
|
|
(false, true, false, 1),
|
|
(false, true, true, 2),
|
|
(true, false, false, 3),
|
|
(true, false, true, 3),
|
|
(true, true, false, 3),
|
|
(true, true, true, 2),
|
|
];
|
|
|
|
fn main() {
|
|
for &(cond, items_1, items_2, result) in CASES {
|
|
assert_eq!(complicated_match(cond, (items_1, items_2, String::new())), result,);
|
|
}
|
|
}
|