diff options
Diffstat (limited to 'src/libstd/io')
| -rw-r--r-- | src/libstd/io/stdio.rs | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/src/libstd/io/stdio.rs b/src/libstd/io/stdio.rs index d410faca30d..0fb0757792e 100644 --- a/src/libstd/io/stdio.rs +++ b/src/libstd/io/stdio.rs @@ -792,10 +792,14 @@ fn print_to<T>( { let result = local_s .try_with(|s| { - if let Ok(mut borrowed) = s.try_borrow_mut() { - if let Some(w) = borrowed.as_mut() { - return w.write_fmt(args); - } + // Note that we completely remove a local sink to write to in case + // our printing recursively panics/prints, so the recursive + // panic/print goes to the global sink instead of our local sink. + let prev = s.borrow_mut().take(); + if let Some(mut w) = prev { + let result = w.write_fmt(args); + *s.borrow_mut() = Some(w); + return result; } global_s().write_fmt(args) }) |
