62c3443e96
Passes LLVM codegen and Emscripten link-time flags for exception handling if and only if the panic strategy is `unwind`. Sets the default panic strategy for Emscripten targets to `unwind`. Re-enables tests that depend on unwinding support for Emscripten, including `should_panic` tests.
62 lines
1.2 KiB
Rust
62 lines
1.2 KiB
Rust
// run-pass
|
|
|
|
#![allow(unused_variables)]
|
|
#![allow(unused_imports)]
|
|
// ignore-wasm32-bare compiled with panic=abort by default
|
|
|
|
// Test that builtin implementations of `Clone` cleanup everything
|
|
// in case of unwinding.
|
|
|
|
use std::thread;
|
|
use std::rc::Rc;
|
|
|
|
struct S(Rc<()>);
|
|
|
|
impl Clone for S {
|
|
fn clone(&self) -> Self {
|
|
if Rc::strong_count(&self.0) == 7 {
|
|
panic!("oops");
|
|
}
|
|
|
|
S(self.0.clone())
|
|
}
|
|
}
|
|
|
|
fn main() {
|
|
let counter = Rc::new(());
|
|
|
|
// Unwinding with tuples...
|
|
let ccounter = counter.clone();
|
|
let result = std::panic::catch_unwind(move || {
|
|
let _ = (
|
|
S(ccounter.clone()),
|
|
S(ccounter.clone()),
|
|
S(ccounter.clone()),
|
|
S(ccounter)
|
|
).clone();
|
|
});
|
|
|
|
assert!(result.is_err());
|
|
assert_eq!(
|
|
1,
|
|
Rc::strong_count(&counter)
|
|
);
|
|
|
|
// ... and with arrays.
|
|
let ccounter = counter.clone();
|
|
let child = std::panic::catch_unwind(move || {
|
|
let _ = [
|
|
S(ccounter.clone()),
|
|
S(ccounter.clone()),
|
|
S(ccounter.clone()),
|
|
S(ccounter)
|
|
].clone();
|
|
});
|
|
|
|
assert!(result.is_err());
|
|
assert_eq!(
|
|
1,
|
|
Rc::strong_count(&counter)
|
|
);
|
|
}
|