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Unroll while_capturing_lifetimes into lower_opaque_impl_trait

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Santiago Pastorino 2022-07-19 22:16:32 -03:00
parent 0f11a0cd24
commit 84a24a1b3c
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1 changed files with 15 additions and 5 deletions
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20
compiler/rustc_ast_lowering/src/lib.rs
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@ -1376,11 +1376,21 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> {
let hir_bounds = if origin == hir::OpaqueTyOrigin::TyAlias { let hir_bounds = if origin == hir::OpaqueTyOrigin::TyAlias {
lower_bounds(lctx) lower_bounds(lctx)
} else { } else {
lctx.while_capturing_lifetimes( let lifetime_stash = std::mem::replace(
opaque_ty_def_id, &mut lctx.captured_lifetimes,
&mut collected_lifetimes, Some(LifetimeCaptureContext {
lower_bounds, parent_def_id: opaque_ty_def_id,
) captures: std::mem::take(&mut collected_lifetimes),
binders_to_ignore: Default::default(),
}),
);
let ret = lower_bounds(lctx);
let ctxt = std::mem::replace(&mut lctx.captured_lifetimes, lifetime_stash).unwrap();
collected_lifetimes = ctxt.captures;
ret
}; };
debug!(?collected_lifetimes); debug!(?collected_lifetimes);