migrate: pass_by_value.rs

compiler/rustc_lint/src/lints.rs

@@ -6,6 +6,14 @@ use rustc_span::{Span, Symbol};
 
 use crate::LateContext;
 
+#[derive(LintDiagnostic)]
+#[diag(lint_pass_by_value)]
+pub struct PassByValueDiag {
+    pub ty: String,
+    #[suggestion(code = "{ty}", applicability = "maybe-incorrect")]
+    pub suggestion: Span,
+}
+
 #[derive(LintDiagnostic)]
 #[diag(lint_redundant_semicolons)]
 pub struct RedundantSemicolonsDiag {

compiler/rustc_lint/src/pass_by_value.rs

@@ -1,5 +1,7 @@
+#![deny(rustc::untranslatable_diagnostic)]
+#![deny(rustc::diagnostic_outside_of_impl)]
+use crate::lints::PassByValueDiag;
 use crate::{LateContext, LateLintPass, LintContext};
-use rustc_errors::{fluent, Applicability};
 use rustc_hir as hir;
 use rustc_hir::def::Res;
 use rustc_hir::{GenericArg, PathSegment, QPath, TyKind};
@@ -29,20 +31,11 @@ impl<'tcx> LateLintPass<'tcx> for PassByValue {
                     }
                 }
                 if let Some(t) = path_for_pass_by_value(cx, &inner_ty) {
-                    cx.struct_span_lint(
+                    cx.emit_spanned_lint(
                         PASS_BY_VALUE,
                         ty.span,
-                        fluent::lint_pass_by_value,
+                        PassByValueDiag { ty: t.clone(), suggestion: ty.span },
-                        |lint| {
+                    );
-                            lint.set_arg("ty", t.clone()).span_suggestion(
-                                ty.span,
-                                fluent::suggestion,
-                                t,
-                                // Changing type of function argument
-                                Applicability::MaybeIncorrect,
-                            )
-                        },
-                    )
                 }
             }
             _ => {}