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Auto merge of #77524 - Patryk27:fixes/66228, r=estebank

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Rework diagnostics for wrong number of generic args (fixes #66228 and #71924)

This PR reworks the `wrong number of {} arguments` message, so that it provides more details and contextual hints.
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bors 2021-01-13 20:35:58 +00:00
commit a62a76047e
121 changed files with 2787 additions and 766 deletions
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9
compiler/rustc_middle/src/query/mod.rs
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@ -881,6 +881,7 @@ rustc_queries! {
query def_kind(def_id: DefId) -> DefKind {
desc { |tcx| "looking up definition kind of `{}`", tcx.def_path_str(def_id) }
}
query def_span(def_id: DefId) -> Span {
desc { |tcx| "looking up span for `{}`", tcx.def_path_str(def_id) }
// FIXME(mw): DefSpans are not really inputs since they are derived from
@ -890,15 +891,23 @@ rustc_queries! {
// regardless of HIR hashing.
eval_always
}
query def_ident_span(def_id: DefId) -> Option<Span> {
desc { |tcx| "looking up span for `{}`'s identifier", tcx.def_path_str(def_id) }
}
query lookup_stability(def_id: DefId) -> Option<&'tcx attr::Stability> {
desc { |tcx| "looking up stability of `{}`", tcx.def_path_str(def_id) }
}
query lookup_const_stability(def_id: DefId) -> Option<&'tcx attr::ConstStability> {
desc { |tcx| "looking up const stability of `{}`", tcx.def_path_str(def_id) }
}
query lookup_deprecation_entry(def_id: DefId) -> Option<DeprecationEntry> {
desc { |tcx| "checking whether `{}` is deprecated", tcx.def_path_str(def_id) }
}
query item_attrs(def_id: DefId) -> &'tcx [ast::Attribute] {
desc { |tcx| "collecting attributes of `{}`", tcx.def_path_str(def_id) }
}