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