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debug for suggest_unsized_bound_if_applicable

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This commit is contained in:
Taylor Yu 2021-05-31 19:58:15 -05:00
parent e062e5d34e
commit ce982a35e1
1 changed files with 11 additions and 1 deletions
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12
compiler/rustc_trait_selection/src/traits/error_reporting/mod.rs
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@ -1763,7 +1763,10 @@ impl<'a, 'tcx> InferCtxtPrivExt<'tcx> for InferCtxt<'a, 'tcx> {
) => (pred, item_def_id, span),
_ => return,
};
debug!(
"suggest_unsized_bound_if_applicable: pred={:?} item_def_id={:?} span={:?}",
pred, item_def_id, span
);
let node = match (
self.tcx.hir().get_if_local(item_def_id),
Some(pred.def_id()) == self.tcx.lang_items().sized_trait(),
@ -1775,6 +1778,11 @@ impl<'a, 'tcx> InferCtxtPrivExt<'tcx> for InferCtxt<'a, 'tcx> {
Some(generics) => generics,
None => return,
};
debug!("suggest_unsized_bound_if_applicable: generics.params={:?}", generics.params);
debug!(
"suggest_unsized_bound_if_applicable: generics.where_clause={:?}",
generics.where_clause
);
for param in generics.params {
if param.span != span
|| param.bounds.iter().any(|bound| {
@ -1784,6 +1792,7 @@ impl<'a, 'tcx> InferCtxtPrivExt<'tcx> for InferCtxt<'a, 'tcx> {
{
continue;
}
debug!("suggest_unsized_bound_if_applicable: param={:?}", param);
match node {
hir::Node::Item(
item
@ -1895,6 +1904,7 @@ impl<'v> Visitor<'v> for FindTypeParam {
if path.segments.len() == 1 && path.segments[0].ident.name == self.param =>
{
if !self.nested {
debug!("FindTypeParam::visit_ty: ty={:?}", ty);
self.invalid_spans.push(ty.span);
}
}