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-rw-r--r--compiler/rustc_trait_selection/src/traits/error_reporting/mod.rs4
-rw-r--r--compiler/rustc_typeck/src/check/fn_ctxt/checks.rs6
-rw-r--r--compiler/rustc_typeck/src/check/method/suggest.rs2
-rw-r--r--compiler/rustc_typeck/src/check/wfcheck.rs4
-rw-r--r--compiler/rustc_typeck/src/structured_errors/wrong_number_of_generic_args.rs6
5 files changed, 10 insertions, 12 deletions
diff --git a/compiler/rustc_trait_selection/src/traits/error_reporting/mod.rs b/compiler/rustc_trait_selection/src/traits/error_reporting/mod.rs
index c77540b2f46..25ba520ace2 100644
--- a/compiler/rustc_trait_selection/src/traits/error_reporting/mod.rs
+++ b/compiler/rustc_trait_selection/src/traits/error_reporting/mod.rs
@@ -631,9 +631,9 @@ impl<'a, 'tcx> InferCtxtExt<'tcx> for InferCtxt<'a, 'tcx> {
                                         &format!(
                                             "expected a closure taking {} argument{}, but one taking {} argument{} was given",
                                             given.len(),
-                                            if given.len() == 1 { "" } else { "s" },
+                                            pluralize!(given.len()),
                                             expected.len(),
-                                            if expected.len() == 1 { "" } else { "s" },
+                                            pluralize!(expected.len()),
                                         )
                                     );
                                 } else if !self.same_type_modulo_infer(given_ty, expected_ty) {
diff --git a/compiler/rustc_typeck/src/check/fn_ctxt/checks.rs b/compiler/rustc_typeck/src/check/fn_ctxt/checks.rs
index 498913ce546..eb22938fb61 100644
--- a/compiler/rustc_typeck/src/check/fn_ctxt/checks.rs
+++ b/compiler/rustc_typeck/src/check/fn_ctxt/checks.rs
@@ -15,7 +15,7 @@ use crate::check::{
 use crate::structured_errors::StructuredDiagnostic;
 
 use rustc_ast as ast;
-use rustc_errors::{Applicability, Diagnostic, DiagnosticId, MultiSpan};
+use rustc_errors::{pluralize, Applicability, Diagnostic, DiagnosticId, MultiSpan};
 use rustc_hir as hir;
 use rustc_hir::def::{CtorOf, DefKind, Res};
 use rustc_hir::def_id::DefId;
@@ -645,7 +645,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
                                     "argument"
                                 ),
                                 potentially_plural_count(provided_args.len(), "argument"),
-                                if provided_args.len() == 1 { "was" } else { "were" }
+                                pluralize!("was", provided_args.len())
                             ),
                             DiagnosticId::Error(err_code.to_owned()),
                         );
@@ -770,7 +770,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
                     if c_variadic { "at least " } else { "" },
                     potentially_plural_count(formal_and_expected_inputs.len(), "argument"),
                     potentially_plural_count(provided_args.len(), "argument"),
-                    if provided_args.len() == 1 { "was" } else { "were" }
+                    pluralize!("was", provided_args.len())
                 ),
                 DiagnosticId::Error(err_code.to_owned()),
             )
diff --git a/compiler/rustc_typeck/src/check/method/suggest.rs b/compiler/rustc_typeck/src/check/method/suggest.rs
index 93d34c72109..56fcd9e0a89 100644
--- a/compiler/rustc_typeck/src/check/method/suggest.rs
+++ b/compiler/rustc_typeck/src/check/method/suggest.rs
@@ -1122,7 +1122,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
                          add a `use` for {one_of_them}:",
                         an = if candidates.len() == 1 { "an" } else { "" },
                         s = pluralize!(candidates.len()),
-                        were = if candidates.len() == 1 { "was" } else { "were" },
+                        were = pluralize!("was", candidates.len()),
                         one_of_them = if candidates.len() == 1 { "it" } else { "one_of_them" },
                     );
                     self.suggest_use_candidates(&mut err, help, candidates);
diff --git a/compiler/rustc_typeck/src/check/wfcheck.rs b/compiler/rustc_typeck/src/check/wfcheck.rs
index b8e998229ba..e65955fe860 100644
--- a/compiler/rustc_typeck/src/check/wfcheck.rs
+++ b/compiler/rustc_typeck/src/check/wfcheck.rs
@@ -2,7 +2,7 @@ use crate::check::regionck::OutlivesEnvironmentExt;
 use crate::constrained_generic_params::{identify_constrained_generic_params, Parameter};
 use rustc_ast as ast;
 use rustc_data_structures::fx::{FxHashMap, FxHashSet};
-use rustc_errors::{struct_span_err, Applicability, DiagnosticBuilder, ErrorGuaranteed};
+use rustc_errors::{pluralize, struct_span_err, Applicability, DiagnosticBuilder, ErrorGuaranteed};
 use rustc_hir as hir;
 use rustc_hir::def_id::{DefId, LocalDefId};
 use rustc_hir::lang_items::LangItem;
@@ -474,7 +474,7 @@ fn check_gat_where_clauses(tcx: TyCtxt<'_>, associated_items: &[hir::TraitItemRe
         unsatisfied_bounds.sort();
 
         if !unsatisfied_bounds.is_empty() {
-            let plural = if unsatisfied_bounds.len() > 1 { "s" } else { "" };
+            let plural = pluralize!(unsatisfied_bounds.len());
             let mut err = tcx.sess.struct_span_err(
                 gat_item_hir.span,
                 &format!("missing required bound{} on `{}`", plural, gat_item_hir.ident),
diff --git a/compiler/rustc_typeck/src/structured_errors/wrong_number_of_generic_args.rs b/compiler/rustc_typeck/src/structured_errors/wrong_number_of_generic_args.rs
index 469f7d1172a..99729391e02 100644
--- a/compiler/rustc_typeck/src/structured_errors/wrong_number_of_generic_args.rs
+++ b/compiler/rustc_typeck/src/structured_errors/wrong_number_of_generic_args.rs
@@ -420,12 +420,10 @@ impl<'a, 'tcx> WrongNumberOfGenericArgs<'a, 'tcx> {
         let provided_lt_args = self.num_provided_lifetime_args();
         let provided_type_or_const_args = self.num_provided_type_or_const_args();
 
-        let get_verb = |num_args| if num_args == 1 { "was" } else { "were" };
-
         let (provided_args_str, verb) = match self.gen_args_info {
             MissingLifetimes { .. } | ExcessLifetimes { .. } => (
                 format!("{} lifetime argument{}", provided_lt_args, pluralize!(provided_lt_args)),
-                get_verb(provided_lt_args),
+                pluralize!("was", provided_lt_args),
             ),
             MissingTypesOrConsts { .. } | ExcessTypesOrConsts { .. } => (
                 format!(
@@ -433,7 +431,7 @@ impl<'a, 'tcx> WrongNumberOfGenericArgs<'a, 'tcx> {
                     provided_type_or_const_args,
                     pluralize!(provided_type_or_const_args)
                 ),
-                get_verb(provided_type_or_const_args),
+                pluralize!("was", provided_type_or_const_args),
             ),
         };