bjoernager/rust
bjoernager/rust
1
Fork 0
Code Activity

Remove some unnecessary clones

Browse source
This commit is contained in:
Oli Scherer 2022-05-10 08:43:39 +00:00
parent 2ea2ced2be
commit 312d27d0a2
3 changed files with 31 additions and 26 deletions
Download patch file Download diff file Expand all files Collapse all files

14
compiler/rustc_middle/src/traits/mod.rs
View file

@ -143,10 +143,6 @@ impl<'tcx> ObligationCause<'tcx> {
ObligationCause { span, body_id: hir::CRATE_HIR_ID, code: None }
}
pub fn make_mut_code(&mut self) -> &mut ObligationCauseCode<'tcx> {
Lrc::make_mut(self.code.get_or_insert_with(|| Lrc::new(MISC_OBLIGATION_CAUSE_CODE)))
}
pub fn span(&self, tcx: TyCtxt<'tcx>) -> Span {
match *self.code() {
ObligationCauseCode::CompareImplMethodObligation { .. }
@ -173,6 +169,16 @@ impl<'tcx> ObligationCause<'tcx> {
None => Lrc::new(MISC_OBLIGATION_CAUSE_CODE),
}
}
pub fn map_code(
&mut self,
f: impl FnOnce(Lrc<ObligationCauseCode<'tcx>>) -> Lrc<ObligationCauseCode<'tcx>>,
) {
self.code = Some(f(match self.code.take() {
Some(code) => code,
None => Lrc::new(MISC_OBLIGATION_CAUSE_CODE),
}));
}
}
#[derive(Clone, Debug, PartialEq, Eq, Hash, Lift)]