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fix few more

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warning: this argument is a mutable reference, but not used mutably
   --> compiler\rustc_trait_selection\src\traits\project.rs:511:12
    |
511 |     selcx: &mut SelectionContext<'a, 'tcx>,
    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider changing to: `&SelectionContext<'a, 'tcx>`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut

warning: this argument is a mutable reference, but not used mutably
   --> compiler\rustc_trait_selection\src\traits\specialize\specialization_graph.rs:201:28
    |
201 | fn iter_children(children: &mut Children) -> impl Iterator<Item = DefId> + '_ {
    |                            ^^^^^^^^^^^^^ help: consider changing to: `&Children`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut
This commit is contained in:
klensy 2024-03-28 13:16:22 +03:00
parent afd0a8eb8f
commit c64a440312
4 changed files with 5 additions and 5 deletions
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2
compiler/rustc_trait_selection/src/traits/project.rs
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@ -508,7 +508,7 @@ pub(super) fn opt_normalize_projection_type<'a, 'b, 'tcx>(
/// because it contains `[type error]`. Yuck! (See issue #29857 for /// because it contains `[type error]`. Yuck! (See issue #29857 for
/// one case where this arose.) /// one case where this arose.)
fn normalize_to_error<'a, 'tcx>( fn normalize_to_error<'a, 'tcx>(
selcx: &mut SelectionContext<'a, 'tcx>, selcx: &SelectionContext<'a, 'tcx>,
param_env: ty::ParamEnv<'tcx>, param_env: ty::ParamEnv<'tcx>,
projection_ty: ty::AliasTy<'tcx>, projection_ty: ty::AliasTy<'tcx>,
cause: ObligationCause<'tcx>, cause: ObligationCause<'tcx>,

4
compiler/rustc_trait_selection/src/traits/specialize/mod.rs
View File

@ -239,10 +239,10 @@ fn fulfill_implication<'tcx>(
let source_trait = ImplSubject::Trait(source_trait_ref); let source_trait = ImplSubject::Trait(source_trait_ref);
let selcx = &mut SelectionContext::new(infcx); let selcx = SelectionContext::new(infcx);
let target_args = infcx.fresh_args_for_item(DUMMY_SP, target_impl); let target_args = infcx.fresh_args_for_item(DUMMY_SP, target_impl);
let (target_trait, obligations) = let (target_trait, obligations) =
util::impl_subject_and_oblig(selcx, param_env, target_impl, target_args, error_cause); util::impl_subject_and_oblig(&selcx, param_env, target_impl, target_args, error_cause);
// do the impls unify? If not, no specialization. // do the impls unify? If not, no specialization.
let Ok(InferOk { obligations: more_obligations, .. }) = infcx let Ok(InferOk { obligations: more_obligations, .. }) = infcx

2
compiler/rustc_trait_selection/src/traits/specialize/specialization_graph.rs
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@ -198,7 +198,7 @@ fn insert(
} }
} }
fn iter_children(children: &mut Children) -> impl Iterator<Item = DefId> + '_ { fn iter_children(children: &Children) -> impl Iterator<Item = DefId> + '_ {
let nonblanket = children.non_blanket_impls.iter().flat_map(|(_, v)| v.iter()); let nonblanket = children.non_blanket_impls.iter().flat_map(|(_, v)| v.iter());
children.blanket_impls.iter().chain(nonblanket).cloned() children.blanket_impls.iter().chain(nonblanket).cloned()
} }

2
compiler/rustc_trait_selection/src/traits/util.rs
View File

@ -205,7 +205,7 @@ fn next(&mut self) -> Option<DefId> {
/// returning the resulting subject and all obligations that arise. /// returning the resulting subject and all obligations that arise.
/// The obligations are closed under normalization. /// The obligations are closed under normalization.
pub fn impl_subject_and_oblig<'a, 'tcx>( pub fn impl_subject_and_oblig<'a, 'tcx>(
selcx: &mut SelectionContext<'a, 'tcx>, selcx: &SelectionContext<'a, 'tcx>,
param_env: ty::ParamEnv<'tcx>, param_env: ty::ParamEnv<'tcx>,
impl_def_id: DefId, impl_def_id: DefId,
impl_args: GenericArgsRef<'tcx>, impl_args: GenericArgsRef<'tcx>,