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Point at unmet explicit lifetime obligation bound
This commit is contained in:
parent
7069a8c2b7
commit
e5d42af6ba
@ -89,16 +89,17 @@ pub(super) fn note_and_explain_region(
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prefix: &str,
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region: ty::Region<'tcx>,
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suffix: &str,
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alt_span: Option<Span>,
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) {
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let (description, span) = match *region {
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ty::ReEarlyBound(_) | ty::ReFree(_) | ty::ReStatic => {
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msg_span_from_free_region(tcx, region)
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msg_span_from_free_region(tcx, region, alt_span)
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}
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ty::ReEmpty(ty::UniverseIndex::ROOT) => ("the empty lifetime".to_owned(), None),
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ty::ReEmpty(ty::UniverseIndex::ROOT) => ("the empty lifetime".to_owned(), alt_span),
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// uh oh, hope no user ever sees THIS
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ty::ReEmpty(ui) => (format!("the empty lifetime in universe {:?}", ui), None),
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ty::ReEmpty(ui) => (format!("the empty lifetime in universe {:?}", ui), alt_span),
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ty::RePlaceholder(_) => return,
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@ -108,7 +109,7 @@ pub(super) fn note_and_explain_region(
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// We shouldn't really be having unification failures with ReVar
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// and ReLateBound though.
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ty::ReVar(_) | ty::ReLateBound(..) | ty::ReErased => {
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(format!("lifetime {:?}", region), None)
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(format!("lifetime {:?}", region), alt_span)
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}
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};
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@ -122,7 +123,7 @@ pub(super) fn note_and_explain_free_region(
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region: ty::Region<'tcx>,
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suffix: &str,
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) {
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let (description, span) = msg_span_from_free_region(tcx, region);
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let (description, span) = msg_span_from_free_region(tcx, region, None);
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emit_msg_span(err, prefix, description, span, suffix);
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}
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@ -130,14 +131,15 @@ pub(super) fn note_and_explain_free_region(
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fn msg_span_from_free_region(
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tcx: TyCtxt<'tcx>,
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region: ty::Region<'tcx>,
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alt_span: Option<Span>,
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) -> (String, Option<Span>) {
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match *region {
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ty::ReEarlyBound(_) | ty::ReFree(_) => {
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msg_span_from_early_bound_and_free_regions(tcx, region)
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}
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ty::ReStatic => ("the static lifetime".to_owned(), None),
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ty::ReEmpty(ty::UniverseIndex::ROOT) => ("an empty lifetime".to_owned(), None),
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ty::ReEmpty(ui) => (format!("an empty lifetime in universe {:?}", ui), None),
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ty::ReStatic => ("the static lifetime".to_owned(), alt_span),
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ty::ReEmpty(ty::UniverseIndex::ROOT) => ("an empty lifetime".to_owned(), alt_span),
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ty::ReEmpty(ui) => (format!("an empty lifetime in universe {:?}", ui), alt_span),
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_ => bug!("{:?}", region),
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}
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}
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@ -319,6 +321,7 @@ pub fn unexpected_hidden_region_diagnostic(
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&format!("hidden type `{}` captures ", hidden_ty),
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hidden_region,
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"",
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None,
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);
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}
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}
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@ -2285,8 +2288,9 @@ impl<'a, 'tcx> InferCtxt<'a, 'tcx> {
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&format!("{} must be valid for ", labeled_user_string),
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sub,
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"...",
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None,
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);
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if let Some(infer::RelateParamBound(_, t)) = origin {
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if let Some(infer::RelateParamBound(_, t, _)) = origin {
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let return_impl_trait = self
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.in_progress_typeck_results
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.map(|typeck_results| typeck_results.borrow().hir_owner)
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@ -2332,6 +2336,7 @@ impl<'a, 'tcx> InferCtxt<'a, 'tcx> {
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"first, the lifetime cannot outlive ",
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sup_region,
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"...",
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None,
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);
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debug!("report_sub_sup_conflict: var_origin={:?}", var_origin);
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@ -2358,6 +2363,7 @@ impl<'a, 'tcx> InferCtxt<'a, 'tcx> {
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"...but the lifetime must also be valid for ",
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sub_region,
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"...",
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None,
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);
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err.span_note(
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sup_trace.cause.span,
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@ -2379,6 +2385,7 @@ impl<'a, 'tcx> InferCtxt<'a, 'tcx> {
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"but, the lifetime must be valid for ",
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sub_region,
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"...",
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None,
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);
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self.note_region_origin(&mut err, &sub_origin);
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@ -43,7 +43,7 @@ impl<'a, 'tcx> NiceRegionError<'a, 'tcx> {
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multi_span
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.push_span_label(binding_span, "introduces a `'static` lifetime requirement".into());
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err.span_note(multi_span, "because this has an unmet lifetime requirement");
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note_and_explain_region(self.tcx(), &mut err, "", sup, "...");
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note_and_explain_region(self.tcx(), &mut err, "", sup, "...", Some(binding_span));
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if let Some(impl_node) = self.tcx().hir().get_if_local(*impl_def_id) {
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// If an impl is local, then maybe this isn't what they want. Try to
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// be as helpful as possible with implicit lifetimes.
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@ -74,14 +74,18 @@ impl<'a, 'tcx> InferCtxt<'a, 'tcx> {
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),
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);
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}
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infer::RelateParamBound(span, t) => {
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infer::RelateParamBound(span, t, opt_span) => {
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label_or_note(
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span,
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&format!(
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"...so that the type `{}` will meet its required lifetime bounds",
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self.ty_to_string(t)
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"...so that the type `{}` will meet its required lifetime bounds{}",
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self.ty_to_string(t),
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if opt_span.is_some() { "..." } else { "" },
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),
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);
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if let Some(span) = opt_span {
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err.span_note(span, "...that is required by this bound");
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}
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}
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infer::RelateRegionParamBound(span) => {
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label_or_note(
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@ -117,6 +121,7 @@ impl<'a, 'tcx> InferCtxt<'a, 'tcx> {
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"",
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sup,
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" doesn't meet the lifetime requirements",
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None,
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);
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}
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(_, ty::RePlaceholder(_)) => {
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@ -126,16 +131,18 @@ impl<'a, 'tcx> InferCtxt<'a, 'tcx> {
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"the required lifetime does not necessarily outlive ",
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sub,
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"",
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None,
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);
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}
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_ => {
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note_and_explain_region(self.tcx, &mut err, "", sup, "...");
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note_and_explain_region(self.tcx, &mut err, "", sup, "...", None);
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note_and_explain_region(
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self.tcx,
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&mut err,
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"...does not necessarily outlive ",
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sub,
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"",
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None,
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);
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}
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}
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@ -154,6 +161,7 @@ impl<'a, 'tcx> InferCtxt<'a, 'tcx> {
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"...the reference is valid for ",
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sub,
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"...",
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None,
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);
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note_and_explain_region(
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self.tcx,
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@ -161,6 +169,7 @@ impl<'a, 'tcx> InferCtxt<'a, 'tcx> {
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"...but the borrowed content is only valid for ",
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sup,
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"",
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None,
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);
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err
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}
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@ -179,6 +188,7 @@ impl<'a, 'tcx> InferCtxt<'a, 'tcx> {
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"...the borrowed pointer is valid for ",
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sub,
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"...",
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None,
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);
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note_and_explain_region(
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self.tcx,
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@ -186,6 +196,7 @@ impl<'a, 'tcx> InferCtxt<'a, 'tcx> {
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&format!("...but `{}` is only valid for ", var_name),
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sup,
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"",
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None,
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);
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err
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}
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@ -197,17 +208,25 @@ impl<'a, 'tcx> InferCtxt<'a, 'tcx> {
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"lifetime of the source pointer does not outlive lifetime bound of the \
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object type"
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);
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note_and_explain_region(self.tcx, &mut err, "object type is valid for ", sub, "");
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note_and_explain_region(
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self.tcx,
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&mut err,
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"object type is valid for ",
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sub,
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"",
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None,
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);
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note_and_explain_region(
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self.tcx,
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&mut err,
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"source pointer is only valid for ",
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sup,
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"",
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None,
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);
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err
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}
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infer::RelateParamBound(span, ty) => {
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infer::RelateParamBound(span, ty, opt_span) => {
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let mut err = struct_span_err!(
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self.tcx.sess,
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span,
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@ -216,10 +235,22 @@ impl<'a, 'tcx> InferCtxt<'a, 'tcx> {
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self.ty_to_string(ty)
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);
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match *sub {
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ty::ReStatic => {
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note_and_explain_region(self.tcx, &mut err, "type must satisfy ", sub, "")
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}
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_ => note_and_explain_region(self.tcx, &mut err, "type must outlive ", sub, ""),
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ty::ReStatic => note_and_explain_region(
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self.tcx,
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&mut err,
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"type must satisfy ",
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sub,
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if opt_span.is_some() { " as required by this binding" } else { "" },
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opt_span,
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),
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_ => note_and_explain_region(
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self.tcx,
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&mut err,
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"type must outlive ",
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sub,
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if opt_span.is_some() { " as required by this binding" } else { "" },
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opt_span,
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),
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}
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err
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}
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@ -232,6 +263,7 @@ impl<'a, 'tcx> InferCtxt<'a, 'tcx> {
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"lifetime parameter instantiated with ",
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sup,
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"",
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None,
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);
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note_and_explain_region(
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self.tcx,
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@ -239,6 +271,7 @@ impl<'a, 'tcx> InferCtxt<'a, 'tcx> {
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"but lifetime parameter must outlive ",
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sub,
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"",
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None,
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);
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err
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}
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@ -255,6 +288,7 @@ impl<'a, 'tcx> InferCtxt<'a, 'tcx> {
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"the return value is only valid for ",
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sup,
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"",
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None,
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);
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err
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}
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@ -266,8 +300,22 @@ impl<'a, 'tcx> InferCtxt<'a, 'tcx> {
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"a value of type `{}` is borrowed for too long",
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self.ty_to_string(ty)
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);
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note_and_explain_region(self.tcx, &mut err, "the type is valid for ", sub, "");
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note_and_explain_region(self.tcx, &mut err, "but the borrow lasts for ", sup, "");
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note_and_explain_region(
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self.tcx,
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&mut err,
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"the type is valid for ",
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sub,
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"",
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None,
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);
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note_and_explain_region(
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self.tcx,
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&mut err,
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"but the borrow lasts for ",
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sup,
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"",
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None,
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);
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err
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}
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infer::ReferenceOutlivesReferent(ty, span) => {
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@ -278,13 +326,21 @@ impl<'a, 'tcx> InferCtxt<'a, 'tcx> {
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"in type `{}`, reference has a longer lifetime than the data it references",
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self.ty_to_string(ty)
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);
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note_and_explain_region(self.tcx, &mut err, "the pointer is valid for ", sub, "");
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note_and_explain_region(
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self.tcx,
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&mut err,
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"the pointer is valid for ",
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sub,
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"",
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None,
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);
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note_and_explain_region(
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self.tcx,
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&mut err,
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"but the referenced data is only valid for ",
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sup,
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"",
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None,
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);
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err
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}
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|
@ -375,7 +375,7 @@ pub enum SubregionOrigin<'tcx> {
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/// Some type parameter was instantiated with the given type,
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/// and that type must outlive some region.
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RelateParamBound(Span, Ty<'tcx>),
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RelateParamBound(Span, Ty<'tcx>, Option<Span>),
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/// The given region parameter was instantiated with a region
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/// that must outlive some other region.
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@ -1705,7 +1705,7 @@ impl<'tcx> SubregionOrigin<'tcx> {
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match *self {
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Subtype(ref a) => a.span(),
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RelateObjectBound(a) => a,
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RelateParamBound(a, _) => a,
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RelateParamBound(a, ..) => a,
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RelateRegionParamBound(a) => a,
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Reborrow(a) => a,
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ReborrowUpvar(a, _) => a,
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|
@ -64,7 +64,7 @@ use crate::infer::outlives::verify::VerifyBoundCx;
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use crate::infer::{
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self, GenericKind, InferCtxt, RegionObligation, SubregionOrigin, UndoLog, VerifyBound,
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};
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use crate::traits::ObligationCause;
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use crate::traits::{ObligationCause, ObligationCauseCode};
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use rustc_middle::ty::outlives::Component;
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use rustc_middle::ty::subst::GenericArgKind;
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use rustc_middle::ty::{self, Region, Ty, TyCtxt, TypeFoldable};
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@ -99,7 +99,14 @@ impl<'cx, 'tcx> InferCtxt<'cx, 'tcx> {
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cause: &ObligationCause<'tcx>,
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) {
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let origin = SubregionOrigin::from_obligation_cause(cause, || {
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infer::RelateParamBound(cause.span, sup_type)
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infer::RelateParamBound(
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cause.span,
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sup_type,
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match cause.code.peel_derives() {
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ObligationCauseCode::BindingObligation(_, span) => Some(*span),
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_ => None,
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},
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)
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});
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self.register_region_obligation(
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|
@ -99,7 +99,7 @@ impl<'a, 'tcx> ConstraintConversion<'a, 'tcx> {
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GenericArgKind::Type(t1) => {
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// we don't actually use this for anything, but
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// the `TypeOutlives` code needs an origin.
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let origin = infer::RelateParamBound(DUMMY_SP, t1);
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let origin = infer::RelateParamBound(DUMMY_SP, t1, None);
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TypeOutlives::new(
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&mut *self,
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|
@ -4,7 +4,13 @@ error[E0310]: the parameter type `U` may not live long enough
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LL | struct Foo<U> {
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| - help: consider adding an explicit lifetime bound...: `U: 'static`
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LL | bar: Bar<U>
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| ^^^^^^ ...so that the type `U` will meet its required lifetime bounds
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| ^^^^^^ ...so that the type `U` will meet its required lifetime bounds...
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|
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note: ...that is required by this bound
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--> $DIR/feature-gate-infer_static_outlives_requirements.rs:7:15
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|
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LL | struct Bar<T: 'static> {
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| ^^^^^^^
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error: aborting due to previous error
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|
@ -11,7 +11,13 @@ LL | | {
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... |
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LL | |
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LL | | }
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| |_^ ...so that the type `T` will meet its required lifetime bounds
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| |_^ ...so that the type `T` will meet its required lifetime bounds...
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|
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note: ...that is required by this bound
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--> $DIR/issue-86483.rs:7:16
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|
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LL | for<'a> T: 'a,
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| ^^
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error[E0311]: the parameter type `T` may not live long enough
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--> $DIR/issue-86483.rs:9:5
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@ -20,7 +26,13 @@ LL | pub trait IceIce<T>
|
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| - help: consider adding an explicit lifetime bound...: `T: 'a`
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...
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LL | type Ice<'v>: IntoIterator<Item = &'v T>;
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ...so that the type `T` will meet its required lifetime bounds
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ...so that the type `T` will meet its required lifetime bounds...
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|
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note: ...that is required by this bound
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--> $DIR/issue-86483.rs:7:16
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|
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LL | for<'a> T: 'a,
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| ^^
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error[E0309]: the parameter type `T` may not live long enough
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--> $DIR/issue-86483.rs:9:32
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|
@ -4,7 +4,7 @@ error[E0477]: the type `&'b ()` does not fulfill the required lifetime
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LL | type Item<'a> = &'b ();
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| ^^^^^^^^^^^^^^^^^^^^^^^
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|
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note: type must outlive the lifetime `'a` as defined on the associated item at 8:15
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note: type must outlive the lifetime `'a` as defined on the associated item at 8:15 as required by this binding
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--> $DIR/unsatisfied-outlives-bound.rs:8:15
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|
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LL | type Item<'a> = &'b ();
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@ -16,7 +16,11 @@ error[E0477]: the type `&'a ()` does not fulfill the required lifetime
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LL | type Item<'a> = &'a ();
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| ^^^^^^^^^^^^^^^^^^^^^^^
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|
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= note: type must satisfy the static lifetime
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note: type must satisfy the static lifetime as required by this binding
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--> $DIR/unsatisfied-outlives-bound.rs:13:20
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|
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LL | type Item<'a>: 'static;
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| ^^^^^^^
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error: aborting due to 2 previous errors
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|
||||
|
@ -4,7 +4,11 @@ error[E0477]: the type `&'a u32` does not fulfill the required lifetime
|
||||
LL | let x = foo::<&'a u32>();
|
||||
| ^^^^^^^^^^^^^^
|
||||
|
|
||||
= note: type must satisfy the static lifetime
|
||||
note: type must satisfy the static lifetime as required by this binding
|
||||
--> $DIR/issue-54943.rs:1:11
|
||||
|
|
||||
LL | fn foo<T: 'static>() { }
|
||||
| ^^^^^^^
|
||||
|
||||
error: aborting due to previous error
|
||||
|
||||
|
@ -16,7 +16,11 @@ error[E0477]: the type `&'a (dyn Dummy + Sync + 'a)` does not fulfill the requir
|
||||
LL | assert_send::<&'a (dyn Dummy + Sync)>();
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
||||
|
|
||||
= note: type must satisfy the static lifetime
|
||||
note: type must satisfy the static lifetime as required by this binding
|
||||
--> $DIR/kindck-send-object1.rs:5:23
|
||||
|
|
||||
LL | fn assert_send<T:Send+'static>() { }
|
||||
| ^^^^^^^
|
||||
|
||||
error[E0277]: `(dyn Dummy + 'a)` cannot be sent between threads safely
|
||||
--> $DIR/kindck-send-object1.rs:29:5
|
||||
|
@ -5,7 +5,12 @@ LL | bar::<T::Output>()
|
||||
| ^^^^^^^^^^^^^^^^
|
||||
|
|
||||
= help: consider adding an explicit lifetime bound `<T as MyTrait<'a>>::Output: 'a`...
|
||||
= note: ...so that the type `<T as MyTrait<'a>>::Output` will meet its required lifetime bounds
|
||||
= note: ...so that the type `<T as MyTrait<'a>>::Output` will meet its required lifetime bounds...
|
||||
note: ...that is required by this bound
|
||||
--> $DIR/projection-where-clause-env-wrong-bound.rs:29:8
|
||||
|
|
||||
LL | T: 'a,
|
||||
| ^^
|
||||
|
||||
error: aborting due to previous error
|
||||
|
||||
|
@ -5,7 +5,12 @@ LL | bar::<<T as MyTrait<'a>>::Output>()
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
||||
|
|
||||
= help: consider adding an explicit lifetime bound `<T as MyTrait<'a>>::Output: 'a`...
|
||||
= note: ...so that the type `<T as MyTrait<'a>>::Output` will meet its required lifetime bounds
|
||||
= note: ...so that the type `<T as MyTrait<'a>>::Output` will meet its required lifetime bounds...
|
||||
note: ...that is required by this bound
|
||||
--> $DIR/projection-where-clause-env-wrong-lifetime.rs:20:8
|
||||
|
|
||||
LL | T: 'a,
|
||||
| ^^
|
||||
|
||||
error: aborting due to previous error
|
||||
|
||||
|
@ -4,7 +4,11 @@ error[E0477]: the type `&'a i32` does not fulfill the required lifetime
|
||||
LL | type Value = &'a i32;
|
||||
| ^^^^^^^^^^^^^^^^^^^^^
|
||||
|
|
||||
= note: type must satisfy the static lifetime
|
||||
note: type must satisfy the static lifetime as required by this binding
|
||||
--> $DIR/regions-assoc-type-region-bound-in-trait-not-met.rs:5:17
|
||||
|
|
||||
LL | type Value: 'a;
|
||||
| ^^
|
||||
|
||||
error[E0477]: the type `&'a i32` does not fulfill the required lifetime
|
||||
--> $DIR/regions-assoc-type-region-bound-in-trait-not-met.rs:20:5
|
||||
@ -12,7 +16,7 @@ error[E0477]: the type `&'a i32` does not fulfill the required lifetime
|
||||
LL | type Value = &'a i32;
|
||||
| ^^^^^^^^^^^^^^^^^^^^^
|
||||
|
|
||||
note: type must outlive the lifetime `'b` as defined on the impl at 19:10
|
||||
note: type must outlive the lifetime `'b` as defined on the impl at 19:10 as required by this binding
|
||||
--> $DIR/regions-assoc-type-region-bound-in-trait-not-met.rs:19:10
|
||||
|
|
||||
LL | impl<'a, 'b> Foo<'b> for &'a i64 {
|
||||
|
@ -4,7 +4,11 @@ error[E0477]: the type `&'a i32` does not fulfill the required lifetime
|
||||
LL | type Value = &'a i32;
|
||||
| ^^^^^^^^^^^^^^^^^^^^^
|
||||
|
|
||||
= note: type must satisfy the static lifetime
|
||||
note: type must satisfy the static lifetime as required by this binding
|
||||
--> $DIR/regions-assoc-type-static-bound-in-trait-not-met.rs:5:17
|
||||
|
|
||||
LL | type Value: 'static;
|
||||
| ^^^^^^^
|
||||
|
||||
error: aborting due to previous error
|
||||
|
||||
|
@ -4,7 +4,11 @@ error[E0477]: the type `&'a isize` does not fulfill the required lifetime
|
||||
LL | assert_send::<&'a isize>();
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^
|
||||
|
|
||||
= note: type must satisfy the static lifetime
|
||||
note: type must satisfy the static lifetime as required by this binding
|
||||
--> $DIR/regions-bounded-by-trait-requiring-static.rs:6:18
|
||||
|
|
||||
LL | fn assert_send<T:'static>() { }
|
||||
| ^^^^^^^
|
||||
|
||||
error[E0477]: the type `&'a str` does not fulfill the required lifetime
|
||||
--> $DIR/regions-bounded-by-trait-requiring-static.rs:26:5
|
||||
@ -12,7 +16,11 @@ error[E0477]: the type `&'a str` does not fulfill the required lifetime
|
||||
LL | assert_send::<&'a str>();
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^
|
||||
|
|
||||
= note: type must satisfy the static lifetime
|
||||
note: type must satisfy the static lifetime as required by this binding
|
||||
--> $DIR/regions-bounded-by-trait-requiring-static.rs:6:18
|
||||
|
|
||||
LL | fn assert_send<T:'static>() { }
|
||||
| ^^^^^^^
|
||||
|
||||
error[E0477]: the type `&'a [isize]` does not fulfill the required lifetime
|
||||
--> $DIR/regions-bounded-by-trait-requiring-static.rs:30:5
|
||||
@ -20,7 +28,11 @@ error[E0477]: the type `&'a [isize]` does not fulfill the required lifetime
|
||||
LL | assert_send::<&'a [isize]>();
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^
|
||||
|
|
||||
= note: type must satisfy the static lifetime
|
||||
note: type must satisfy the static lifetime as required by this binding
|
||||
--> $DIR/regions-bounded-by-trait-requiring-static.rs:6:18
|
||||
|
|
||||
LL | fn assert_send<T:'static>() { }
|
||||
| ^^^^^^^
|
||||
|
||||
error[E0477]: the type `Box<&'a isize>` does not fulfill the required lifetime
|
||||
--> $DIR/regions-bounded-by-trait-requiring-static.rs:44:5
|
||||
@ -28,7 +40,11 @@ error[E0477]: the type `Box<&'a isize>` does not fulfill the required lifetime
|
||||
LL | assert_send::<Box<&'a isize>>();
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
||||
|
|
||||
= note: type must satisfy the static lifetime
|
||||
note: type must satisfy the static lifetime as required by this binding
|
||||
--> $DIR/regions-bounded-by-trait-requiring-static.rs:6:18
|
||||
|
|
||||
LL | fn assert_send<T:'static>() { }
|
||||
| ^^^^^^^
|
||||
|
||||
error[E0477]: the type `*const &'a isize` does not fulfill the required lifetime
|
||||
--> $DIR/regions-bounded-by-trait-requiring-static.rs:55:5
|
||||
@ -36,7 +52,11 @@ error[E0477]: the type `*const &'a isize` does not fulfill the required lifetime
|
||||
LL | assert_send::<*const &'a isize>();
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
||||
|
|
||||
= note: type must satisfy the static lifetime
|
||||
note: type must satisfy the static lifetime as required by this binding
|
||||
--> $DIR/regions-bounded-by-trait-requiring-static.rs:6:18
|
||||
|
|
||||
LL | fn assert_send<T:'static>() { }
|
||||
| ^^^^^^^
|
||||
|
||||
error[E0477]: the type `*mut &'a isize` does not fulfill the required lifetime
|
||||
--> $DIR/regions-bounded-by-trait-requiring-static.rs:59:5
|
||||
@ -44,7 +64,11 @@ error[E0477]: the type `*mut &'a isize` does not fulfill the required lifetime
|
||||
LL | assert_send::<*mut &'a isize>();
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
||||
|
|
||||
= note: type must satisfy the static lifetime
|
||||
note: type must satisfy the static lifetime as required by this binding
|
||||
--> $DIR/regions-bounded-by-trait-requiring-static.rs:6:18
|
||||
|
|
||||
LL | fn assert_send<T:'static>() { }
|
||||
| ^^^^^^^
|
||||
|
||||
error: aborting due to 6 previous errors
|
||||
|
||||
|
@ -23,7 +23,13 @@ LL | fn f<'a, T, U>(v: Box<A<T> + 'static>) -> Box<X + 'static> {
|
||||
| - help: consider adding an explicit lifetime bound...: `T: 'static`
|
||||
LL | // oh dear!
|
||||
LL | box B(&*v) as Box<X>
|
||||
| ^^^^^^ ...so that the type `T` will meet its required lifetime bounds
|
||||
| ^^^^^^ ...so that the type `T` will meet its required lifetime bounds...
|
||||
|
|
||||
note: ...that is required by this bound
|
||||
--> $DIR/regions-close-object-into-object-5.rs:9:17
|
||||
|
|
||||
LL | struct B<'a, T: 'a>(&'a (A<T> + 'a));
|
||||
| ^^
|
||||
|
||||
error[E0310]: the parameter type `T` may not live long enough
|
||||
--> $DIR/regions-close-object-into-object-5.rs:17:11
|
||||
|
@ -5,7 +5,12 @@ LL | check_bound(x, self)
|
||||
| ^^^^^^^^^^^
|
||||
|
|
||||
= help: consider adding an explicit lifetime bound `Self: 'a`...
|
||||
= note: ...so that the type `Self` will meet its required lifetime bounds
|
||||
= note: ...so that the type `Self` will meet its required lifetime bounds...
|
||||
note: ...that is required by this bound
|
||||
--> $DIR/regions-infer-bound-from-trait-self.rs:12:21
|
||||
|
|
||||
LL | fn check_bound<'a,A:'a>(x: Inv<'a>, a: A) { }
|
||||
| ^^
|
||||
|
||||
error: aborting due to previous error
|
||||
|
||||
|
@ -4,7 +4,13 @@ error[E0309]: the parameter type `A` may not live long enough
|
||||
LL | fn bar1<'a,A>(x: Inv<'a>, a: A) {
|
||||
| - help: consider adding an explicit lifetime bound...: `A: 'a`
|
||||
LL | check_bound(x, a)
|
||||
| ^^^^^^^^^^^ ...so that the type `A` will meet its required lifetime bounds
|
||||
| ^^^^^^^^^^^ ...so that the type `A` will meet its required lifetime bounds...
|
||||
|
|
||||
note: ...that is required by this bound
|
||||
--> $DIR/regions-infer-bound-from-trait.rs:12:21
|
||||
|
|
||||
LL | fn check_bound<'a,A:'a>(x: Inv<'a>, a: A) { }
|
||||
| ^^
|
||||
|
||||
error[E0309]: the parameter type `A` may not live long enough
|
||||
--> $DIR/regions-infer-bound-from-trait.rs:37:5
|
||||
@ -12,7 +18,13 @@ error[E0309]: the parameter type `A` may not live long enough
|
||||
LL | fn bar2<'a,'b,A:Is<'b>>(x: Inv<'a>, y: Inv<'b>, a: A) {
|
||||
| -- help: consider adding an explicit lifetime bound...: `A: 'a +`
|
||||
LL | check_bound(x, a)
|
||||
| ^^^^^^^^^^^ ...so that the type `A` will meet its required lifetime bounds
|
||||
| ^^^^^^^^^^^ ...so that the type `A` will meet its required lifetime bounds...
|
||||
|
|
||||
note: ...that is required by this bound
|
||||
--> $DIR/regions-infer-bound-from-trait.rs:12:21
|
||||
|
|
||||
LL | fn check_bound<'a,A:'a>(x: Inv<'a>, a: A) { }
|
||||
| ^^
|
||||
|
||||
error: aborting due to 2 previous errors
|
||||
|
||||
|
@ -4,7 +4,13 @@ error[E0310]: the parameter type `U` may not live long enough
|
||||
LL | struct Foo<U> {
|
||||
| - help: consider adding an explicit lifetime bound...: `U: 'static`
|
||||
LL | bar: Bar<U>
|
||||
| ^^^^^^ ...so that the type `U` will meet its required lifetime bounds
|
||||
| ^^^^^^ ...so that the type `U` will meet its required lifetime bounds...
|
||||
|
|
||||
note: ...that is required by this bound
|
||||
--> $DIR/dont-infer-static.rs:10:15
|
||||
|
|
||||
LL | struct Bar<T: 'static> {
|
||||
| ^^^^^^^
|
||||
|
||||
error: aborting due to previous error
|
||||
|
||||
|
@ -12,7 +12,13 @@ error[E0309]: the parameter type `T` may not live long enough
|
||||
LL | impl<'a, T> Trait<'a, T> for u32 {
|
||||
| - help: consider adding an explicit lifetime bound...: `T: 'a`
|
||||
LL | type Out = RefOk<'a, T>;
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^ ...so that the type `T` will meet its required lifetime bounds
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^ ...so that the type `T` will meet its required lifetime bounds...
|
||||
|
|
||||
note: ...that is required by this bound
|
||||
--> $DIR/regions-struct-not-wf.rs:16:20
|
||||
|
|
||||
LL | struct RefOk<'a, T:'a> {
|
||||
| ^^
|
||||
|
||||
error[E0491]: in type `&'a &'b T`, reference has a longer lifetime than the data it references
|
||||
--> $DIR/regions-struct-not-wf.rs:25:5
|
||||
|
@ -9,7 +9,7 @@ fn foo(d: impl Debug + 'static) {
|
||||
//~| NOTE ...so that the type `impl Debug` will meet its required lifetime bounds
|
||||
}
|
||||
|
||||
fn bar(d: impl Debug + 'static) {
|
||||
fn bar(d: impl Debug + 'static) { //~ NOTE ...that is required by this bound
|
||||
println!("{:?}", d)
|
||||
}
|
||||
|
||||
|
@ -9,7 +9,7 @@ fn foo(d: impl Debug) {
|
||||
//~| NOTE ...so that the type `impl Debug` will meet its required lifetime bounds
|
||||
}
|
||||
|
||||
fn bar(d: impl Debug + 'static) {
|
||||
fn bar(d: impl Debug + 'static) { //~ NOTE ...that is required by this bound
|
||||
println!("{:?}", d)
|
||||
}
|
||||
|
||||
|
@ -5,7 +5,13 @@ LL | fn foo(d: impl Debug) {
|
||||
| ---------- help: consider adding an explicit lifetime bound...: `impl Debug + 'static`
|
||||
LL |
|
||||
LL | bar(d);
|
||||
| ^^^ ...so that the type `impl Debug` will meet its required lifetime bounds
|
||||
| ^^^ ...so that the type `impl Debug` will meet its required lifetime bounds...
|
||||
|
|
||||
note: ...that is required by this bound
|
||||
--> $DIR/suggest-impl-trait-lifetime.rs:12:24
|
||||
|
|
||||
LL | fn bar(d: impl Debug + 'static) {
|
||||
| ^^^^^^^
|
||||
|
||||
error: aborting due to previous error
|
||||
|
||||
|
Loading…
Reference in New Issue
Block a user