d5b6a20557
This commit fixes an issue when using `set_print` and friends, notably used by libtest, to avoid aborting the process if printing panics. This previously panicked due to borrowing a mutable `RefCell` twice, and this is worked around by borrowing these cells for less time, instead taking out and removing contents temporarily. Closes #69558
25 lines
427 B
Rust
25 lines
427 B
Rust
// run-pass
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// ignore-emscripten no subprocess support
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#![feature(set_stdio)]
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use std::fmt;
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use std::fmt::{Display, Formatter};
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use std::io::set_panic;
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pub struct A;
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impl Display for A {
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fn fmt(&self, _f: &mut Formatter<'_>) -> fmt::Result {
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panic!();
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}
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}
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fn main() {
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set_panic(Some(Box::new(Vec::new())));
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assert!(std::panic::catch_unwind(|| {
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eprintln!("{}", A);
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})
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.is_err());
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}
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