rust/tests/ui/array-slice-vec/slice-panic-2.rs

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// run-pass
// needs-unwind
// ignore-emscripten no threads support
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// Test that if a slicing expr[..] fails, the correct cleanups happen.
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use std::thread;
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struct Foo;
static mut DTOR_COUNT: isize = 0;
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impl Drop for Foo {
fn drop(&mut self) { unsafe { DTOR_COUNT += 1; } }
}
fn bar() -> usize {
panic!();
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}
fn foo() {
let x: &[_] = &[Foo, Foo];
let _ = &x[3..bar()];
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}
fn main() {
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let _ = thread::spawn(move|| foo()).join();
unsafe { assert_eq!(DTOR_COUNT, 2); }
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}