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Exhaustively handle fields in Drop for Cfg

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This way it's no longer possible to forget to update this code when
adding new configuration fields into CFG.
This commit is contained in:
David Tolnay 2022-11-18 00:19:07 -08:00
parent 5b39d5eb25
commit f908cfa123
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1 changed files with 12 additions and 5 deletions
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17
gen/build/src/cfg.rs
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@ -391,12 +391,19 @@ mod r#impl {
impl<'a> Drop for Cfg<'a> {
fn drop(&mut self) {
if let Cfg::Mut(cfg) = self {
if let Cfg::Mut(super::Cfg {
include_prefix,
exported_header_dirs,
exported_header_prefixes,
exported_header_links,
marker: _,
}) = self
{
let mut current = CURRENT.write().unwrap_or_else(PoisonError::into_inner);
current.include_prefix = intern(cfg.include_prefix);
current.exported_header_dirs = vec::intern(&cfg.exported_header_dirs);
current.exported_header_prefixes = vec::intern(&cfg.exported_header_prefixes);
current.exported_header_links = vec::intern(&cfg.exported_header_links);
current.include_prefix = intern(include_prefix);
current.exported_header_dirs = vec::intern(exported_header_dirs);
current.exported_header_prefixes = vec::intern(exported_header_prefixes);
current.exported_header_links = vec::intern(exported_header_links);
} else {
CONST_DEREFS.with(|derefs| derefs.borrow_mut().remove(&self.handle()));
}