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Use std_or_core to determine the correct prefix

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Replace hand-crafted tests by the a call to the `std_or_core()` utility
function.
This commit is contained in:
Samuel Tardieu 2024-09-24 18:59:58 +02:00
parent 8ab744e2d1
commit 0791efaaac
3 changed files with 9 additions and 13 deletions
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10
clippy_lints/src/loops/missing_spin_loop.rs
View file

@ -1,6 +1,6 @@
use super::MISSING_SPIN_LOOP;
use clippy_utils::diagnostics::span_lint_and_sugg;
use clippy_utils::is_no_std_crate;
use clippy_utils::std_or_core;
use rustc_errors::Applicability;
use rustc_hir::{Block, Expr, ExprKind};
use rustc_lint::LateContext;
@ -41,6 +41,7 @@ pub(super) fn check<'tcx>(cx: &LateContext<'tcx>, cond: &'tcx Expr<'_>, body: &'
&& [sym::load, sym::compare_exchange, sym::compare_exchange_weak].contains(&method.ident.name)
&& let ty::Adt(def, _args) = cx.typeck_results().expr_ty(callee).kind()
&& cx.tcx.is_diagnostic_item(sym::AtomicBool, def.did())
&& let Some(std_or_core) = std_or_core(cx)
{
span_lint_and_sugg(
cx,
@ -48,12 +49,7 @@ pub(super) fn check<'tcx>(cx: &LateContext<'tcx>, cond: &'tcx Expr<'_>, body: &'
body.span,
"busy-waiting loop should at least have a spin loop hint",
"try",
(if is_no_std_crate(cx) {
"{ core::hint::spin_loop() }"
} else {
"{ std::hint::spin_loop() }"
})
.into(),
format!("{{ {std_or_core}::hint::spin_loop() }}"),
Applicability::MachineApplicable,
);
}