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lint: port default hash types diagnostics

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Signed-off-by: David Wood <david.wood@huawei.com>
This commit is contained in:
David Wood 2022-06-27 14:46:45 +01:00
parent fd57269e8c
commit e88916cc92
2 changed files with 8 additions and 8 deletions
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3
compiler/rustc_error_messages/locales/en-US/lint.ftl
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@ -28,3 +28,6 @@ lint-hidden-unicode-codepoints = unicode codepoint changing visible direction of
.suggestion-remove = if their presence wasn't intentional, you can remove them
.suggestion-escape = if you want to keep them but make them visible in your source code, you can escape them
.no-suggestion-note-escape = if you want to keep them but make them visible in your source code, you can escape them: {$escaped}
lint-default-hash-types = prefer `{$preferred}` over `{$used}`, it has better performance
.note = a `use rustc_data_structures::fx::{$preferred}` may be necessary

13
compiler/rustc_lint/src/internal.rs
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@ -3,7 +3,7 @@
use crate::{EarlyContext, EarlyLintPass, LateContext, LateLintPass, LintContext};
use rustc_ast as ast;
use rustc_errors::Applicability;
use rustc_errors::{fluent, Applicability};
use rustc_hir::def::Res;
use rustc_hir::{def_id::DefId, Expr, ExprKind, GenericArg, PatKind, Path, PathSegment, QPath};
use rustc_hir::{HirId, Impl, Item, ItemKind, Node, Pat, Ty, TyKind};
@ -36,13 +36,10 @@ impl LateLintPass<'_> for DefaultHashTypes {
_ => return,
};
cx.struct_span_lint(DEFAULT_HASH_TYPES, path.span, |lint| {
let msg = format!(
"prefer `{}` over `{}`, it has better performance",
replace,
cx.tcx.item_name(def_id)
);
lint.build(&msg)
.note(&format!("a `use rustc_data_structures::fx::{}` may be necessary", replace))
lint.build(fluent::lint::default_hash_types)
.set_arg("preferred", replace)
.set_arg("used", cx.tcx.item_name(def_id))
.note(fluent::lint::note)
.emit();
});
}