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Forbid the use of #[target_feature] on start

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This commit is contained in:
Léo Lanteri Thauvin 2023-03-02 14:26:12 +01:00
parent db26693982
commit 963305bda8
5 changed files with 39 additions and 0 deletions
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9
compiler/rustc_hir_analysis/src/errors.rs
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@ -344,6 +344,15 @@ pub(crate) struct StartTrackCaller {
pub start: Span,
}
#[derive(Diagnostic)]
#[diag(hir_analysis_start_not_target_feature)]
pub(crate) struct StartTargetFeature {
#[primary_span]
pub span: Span,
#[label]
pub start: Span,
}
#[derive(Diagnostic)]
#[diag(hir_analysis_start_not_async, code = "E0752")]
pub(crate) struct StartAsync {

7
compiler/rustc_hir_analysis/src/lib.rs
View file

@ -378,6 +378,13 @@ fn check_start_fn_ty(tcx: TyCtxt<'_>, start_def_id: DefId) {
});
error = true;
}
if attr.has_name(sym::target_feature) {
tcx.sess.emit_err(errors::StartTargetFeature {
span: attr.span,
start: start_span,
});
error = true;
}
}
if error {