diff options
Diffstat (limited to 'src/tools/clippy/clippy_lints/src/unit_return_expecting_ord.rs')
| -rw-r--r-- | src/tools/clippy/clippy_lints/src/unit_return_expecting_ord.rs | 23 |
1 files changed, 12 insertions, 11 deletions
diff --git a/src/tools/clippy/clippy_lints/src/unit_return_expecting_ord.rs b/src/tools/clippy/clippy_lints/src/unit_return_expecting_ord.rs index c0a4f3fba..130728862 100644 --- a/src/tools/clippy/clippy_lints/src/unit_return_expecting_ord.rs +++ b/src/tools/clippy/clippy_lints/src/unit_return_expecting_ord.rs @@ -1,5 +1,4 @@ use clippy_utils::diagnostics::{span_lint, span_lint_and_help}; -use clippy_utils::{get_trait_def_id, paths}; use if_chain::if_chain; use rustc_hir::def_id::DefId; use rustc_hir::{Closure, Expr, ExprKind, StmtKind}; @@ -7,7 +6,7 @@ use rustc_lint::{LateContext, LateLintPass}; use rustc_middle::ty; use rustc_middle::ty::{GenericPredicates, PredicateKind, ProjectionPredicate, TraitPredicate}; use rustc_session::{declare_lint_pass, declare_tool_lint}; -use rustc_span::{BytePos, Span}; +use rustc_span::{sym, BytePos, Span}; declare_clippy_lint! { /// ### What it does @@ -80,7 +79,7 @@ fn get_args_to_check<'tcx>(cx: &LateContext<'tcx>, expr: &'tcx Expr<'tcx>) -> Ve let fn_sig = cx.tcx.fn_sig(def_id); let generics = cx.tcx.predicates_of(def_id); let fn_mut_preds = get_trait_predicates_for_trait_id(cx, generics, cx.tcx.lang_items().fn_mut_trait()); - let ord_preds = get_trait_predicates_for_trait_id(cx, generics, get_trait_def_id(cx, &paths::ORD)); + let ord_preds = get_trait_predicates_for_trait_id(cx, generics, cx.tcx.get_diagnostic_item(sym::Ord)); let partial_ord_preds = get_trait_predicates_for_trait_id(cx, generics, cx.tcx.lang_items().partial_ord_trait()); // Trying to call erase_late_bound_regions on fn_sig.inputs() gives the following error @@ -99,11 +98,15 @@ fn get_args_to_check<'tcx>(cx: &LateContext<'tcx>, expr: &'tcx Expr<'tcx>) -> Ve if trait_pred.self_ty() == inp; if let Some(return_ty_pred) = get_projection_pred(cx, generics, *trait_pred); then { - if ord_preds.iter().any(|ord| Some(ord.self_ty()) == return_ty_pred.term.ty()) { + if ord_preds + .iter() + .any(|ord| Some(ord.self_ty()) == return_ty_pred.term.ty()) + { args_to_check.push((i, "Ord".to_string())); - } else if partial_ord_preds.iter().any(|pord| { - pord.self_ty() == return_ty_pred.term.ty().unwrap() - }) { + } else if partial_ord_preds + .iter() + .any(|pord| pord.self_ty() == return_ty_pred.term.ty().unwrap()) + { args_to_check.push((i, "PartialOrd".to_string())); } } @@ -157,8 +160,7 @@ impl<'tcx> LateLintPass<'tcx> for UnitReturnExpectingOrd { span, &format!( "this closure returns \ - the unit type which also implements {}", - trait_name + the unit type which also implements {trait_name}" ), ); }, @@ -169,8 +171,7 @@ impl<'tcx> LateLintPass<'tcx> for UnitReturnExpectingOrd { span, &format!( "this closure returns \ - the unit type which also implements {}", - trait_name + the unit type which also implements {trait_name}" ), Some(last_semi), "probably caused by this trailing semicolon", |