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make Primary/Secondary importance consistent between CellBorrow and MutBorrow

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This commit is contained in:
Ralf Jung 2024-02-11 14:59:38 +01:00
parent d5de9a6105
commit e13de311d5
1 changed files with 7 additions and 7 deletions
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14
compiler/rustc_const_eval/src/transform/check_consts/ops.rs
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@ -409,11 +409,6 @@ impl<'tcx> NonConstOp<'tcx> for TransientCellBorrow {
fn status_in_item(&self, _: &ConstCx<'_, 'tcx>) -> Status {
Status::Unstable(sym::const_refs_to_cell)
}
fn importance(&self) -> DiagnosticImportance {
// The cases that cannot possibly work will already emit a `CellBorrow`, so we should
// not additionally emit a feature gate error if activating the feature gate won't work.
DiagnosticImportance::Secondary
}
fn build_error(&self, ccx: &ConstCx<'_, 'tcx>, span: Span) -> DiagnosticBuilder<'tcx> {
ccx.tcx
.sess
@ -427,6 +422,11 @@ impl<'tcx> NonConstOp<'tcx> for TransientCellBorrow {
/// it in the future for static items.
pub struct CellBorrow;
impl<'tcx> NonConstOp<'tcx> for CellBorrow {
fn importance(&self) -> DiagnosticImportance {
// Most likely the code will try to do mutation with these borrows, which
// triggers its own errors. Only show this one if that does not happen.
DiagnosticImportance::Secondary
}
fn build_error(&self, ccx: &ConstCx<'_, 'tcx>, span: Span) -> DiagnosticBuilder<'tcx> {
// FIXME: Maybe a more elegant solution to this if else case
if let hir::ConstContext::Static(_) = ccx.const_kind() {
@ -459,8 +459,8 @@ impl<'tcx> NonConstOp<'tcx> for MutBorrow {
}
fn importance(&self) -> DiagnosticImportance {
// If there were primary errors (like non-const function calls), do not emit further
// errors about mutable references.
// Most likely the code will try to do mutation with these borrows, which
// triggers its own errors. Only show this one if that does not happen.
DiagnosticImportance::Secondary
}