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58 lines
1.0 KiB
Rust
58 lines
1.0 KiB
Rust
// run-pass
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// Test to make sure the destructors run in the right order.
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// Each destructor sets it's tag in the corresponding entry
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// in ORDER matching up to when it ran.
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// Correct order is: matched, inner, outer
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static mut ORDER: [usize; 3] = [0, 0, 0];
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static mut INDEX: usize = 0;
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struct A;
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impl Drop for A {
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fn drop(&mut self) {
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unsafe {
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ORDER[INDEX] = 1;
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INDEX = INDEX + 1;
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}
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}
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}
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struct B;
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impl Drop for B {
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fn drop(&mut self) {
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unsafe {
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ORDER[INDEX] = 2;
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INDEX = INDEX + 1;
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}
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}
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}
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struct C;
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impl Drop for C {
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fn drop(&mut self) {
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unsafe {
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ORDER[INDEX] = 3;
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INDEX = INDEX + 1;
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}
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}
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}
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fn main() {
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{
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let matched = A;
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let _outer = C;
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{
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match matched {
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_s => {}
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}
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let _inner = B;
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}
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}
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unsafe {
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let expected: &[_] = &[1, 2, 3];
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assert_eq!(expected, ORDER);
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}
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}
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