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better spans for WF errors

This commit is contained in:
Ralf Jung 2023-09-09 17:43:20 +02:00
parent c2a7e684cd
commit 3bd8bcb8bb
7 changed files with 28 additions and 19 deletions

View file

@ -118,7 +118,7 @@ fn dump_abi_of_fn_type(tcx: TyCtxt<'_>, item_def_id: LocalDefId, attr: &Attribut
let param_env = tcx.param_env(item_def_id);
let ty = tcx.type_of(item_def_id).instantiate_identity();
let span = tcx.def_span(item_def_id);
if !ensure_wf(tcx, param_env, ty, span) {
if !ensure_wf(tcx, param_env, ty, item_def_id, span) {
return;
}
let meta_items = attr.meta_item_list().unwrap_or_default();

View file

@ -38,12 +38,17 @@ pub fn ensure_wf<'tcx>(
tcx: TyCtxt<'tcx>,
param_env: ParamEnv<'tcx>,
ty: Ty<'tcx>,
def_id: LocalDefId,
span: Span,
) -> bool {
let pred = ty::ClauseKind::WellFormed(ty.into());
let obligation = traits::Obligation::new(
tcx,
traits::ObligationCause::dummy_with_span(span),
traits::ObligationCause::new(
span,
def_id,
traits::ObligationCauseCode::WellFormed(Some(traits::WellFormedLoc::Ty(def_id))),
),
param_env,
pred,
);
@ -64,7 +69,7 @@ fn dump_layout_of(tcx: TyCtxt<'_>, item_def_id: LocalDefId, attr: &Attribute) {
let param_env = tcx.param_env(item_def_id);
let ty = tcx.type_of(item_def_id).instantiate_identity();
let span = tcx.def_span(item_def_id.to_def_id());
if !ensure_wf(tcx, param_env, ty, span) {
if !ensure_wf(tcx, param_env, ty, item_def_id, span) {
return;
}
match tcx.layout_of(param_env.and(ty)) {