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rustdoc: Replace pair of Options with an enum #83356

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Mar 23, 2021
Merged

rustdoc: Replace pair of Options with an enum #83356

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19 changes: 11 additions & 8 deletions src/librustdoc/html/markdown.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -690,25 +690,29 @@ crate fn find_testable_code<T: doctest::Tester>(
}

crate struct ExtraInfo<'tcx> {
hir_id: Option<HirId>,
item_did: Option<DefId>,
id: ExtraInfoId,
sp: Span,
tcx: TyCtxt<'tcx>,
}

enum ExtraInfoId {
Hir(HirId),
Def(DefId),
}

impl<'tcx> ExtraInfo<'tcx> {
crate fn new(tcx: TyCtxt<'tcx>, hir_id: HirId, sp: Span) -> ExtraInfo<'tcx> {
ExtraInfo { hir_id: Some(hir_id), item_did: None, sp, tcx }
ExtraInfo { id: ExtraInfoId::Hir(hir_id), sp, tcx }
}

crate fn new_did(tcx: TyCtxt<'tcx>, did: DefId, sp: Span) -> ExtraInfo<'tcx> {
ExtraInfo { hir_id: None, item_did: Some(did), sp, tcx }
ExtraInfo { id: ExtraInfoId::Def(did), sp, tcx }
}

fn error_invalid_codeblock_attr(&self, msg: &str, help: &str) {
let hir_id = match (self.hir_id, self.item_did) {
(Some(h), _) => h,
(None, Some(item_did)) => {
let hir_id = match self.id {
ExtraInfoId::Hir(hir_id) => hir_id,
ExtraInfoId::Def(item_did) => {
match item_did.as_local() {
Some(item_did) => self.tcx.hir().local_def_id_to_hir_id(item_did),
None => {
Expand All @@ -717,7 +721,6 @@ impl<'tcx> ExtraInfo<'tcx> {
}
}
}
(None, None) => return,
};
self.tcx.struct_span_lint_hir(
crate::lint::INVALID_CODEBLOCK_ATTRIBUTES,
Expand Down