rust/src/test/ui/issues/issue-14875.rs
Thomas Lively 62c3443e96 Re-enable Emscripten's exception handling support
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.
2019-10-25 15:16:36 -07:00

36 lines
778 B
Rust

// run-pass
// ignore-wasm32-bare compiled with panic=abort by default
// Check that values are not leaked when a dtor panics (#14875)
use std::panic::{self, UnwindSafe};
struct SetInnerOnDrop<'a>(&'a mut bool);
impl<'a> UnwindSafe for SetInnerOnDrop<'a> {}
impl<'a> Drop for SetInnerOnDrop<'a> {
fn drop(&mut self) {
*self.0 = true;
}
}
struct PanicOnDrop;
impl Drop for PanicOnDrop {
fn drop(&mut self) {
panic!("test panic");
}
}
fn main() {
let mut set_on_drop = false;
{
let set_inner_on_drop = SetInnerOnDrop(&mut set_on_drop);
let _ = panic::catch_unwind(|| {
let _set_inner_on_drop = set_inner_on_drop;
let _panic_on_drop = PanicOnDrop;
});
}
assert!(set_on_drop);
}