Skip to content

Revert "Refactored code to access TLS only in case of panic" #34864

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Closed
wants to merge 1 commit into from
Closed

Revert "Refactored code to access TLS only in case of panic" #34864

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
20 changes: 9 additions & 11 deletions src/libstd/panicking.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -232,9 +232,10 @@ fn default_hook(info: &PanicInfo) {
pub unsafe fn try<R, F: FnOnce() -> R>(f: F) -> Result<R, Box<Any + Send>> {
let mut slot = None;
let mut f = Some(f);
let ret;
let ret = PANIC_COUNT.with(|s| {
let prev = s.get();
s.set(0);

{
let mut to_run = || {
slot = Some(f.take().unwrap()());
};
Expand All @@ -247,21 +248,18 @@ pub unsafe fn try<R, F: FnOnce() -> R>(f: F) -> Result<R, Box<Any + Send>> {
dataptr,
&mut any_data,
&mut any_vtable);
s.set(prev);

if r == 0 {
ret = Ok(());
Ok(())
} else {
PANIC_COUNT.with(|s| {
let prev = s.get();
s.set(prev - 1);
});
ret = Err(mem::transmute(raw::TraitObject {
Err(mem::transmute(raw::TraitObject {
data: any_data as *mut _,
vtable: any_vtable as *mut _,
}));
}))
}
}
});

debug_assert!(PANIC_COUNT.with(|c| c.get() == 0));
return ret.map(|()| {
slot.take().unwrap()
});
Expand Down