| // ignore-wasm32-bare compiled with panic=abort by default |
| // 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,); |
| } |
| } |