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Remove redundant option that was just encoding that a slice was empty
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6ef11b81c2
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@ -172,7 +172,7 @@ impl<'hir> LoweringContext<'_, 'hir> {
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id: NodeId,
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hir_id: hir::HirId,
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ident: &mut Ident,
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attrs: Option<&'hir [Attribute]>,
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attrs: &'hir [Attribute],
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vis_span: Span,
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i: &ItemKind,
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) -> hir::ItemKind<'hir> {
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@ -488,7 +488,7 @@ impl<'hir> LoweringContext<'_, 'hir> {
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id: NodeId,
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vis_span: Span,
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ident: &mut Ident,
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attrs: Option<&'hir [Attribute]>,
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attrs: &'hir [Attribute],
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) -> hir::ItemKind<'hir> {
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let path = &tree.prefix;
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let segments = prefix.segments.iter().chain(path.segments.iter()).cloned().collect();
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@ -566,7 +566,7 @@ impl<'hir> LoweringContext<'_, 'hir> {
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// `ItemLocalId` and the new owner. (See `lower_node_id`)
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let kind =
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this.lower_use_tree(use_tree, &prefix, id, vis_span, &mut ident, attrs);
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if let Some(attrs) = attrs {
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if !attrs.is_empty() {
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this.attrs.insert(hir::ItemLocalId::ZERO, attrs);
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}
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@ -913,15 +913,15 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> {
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ret
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}
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fn lower_attrs(&mut self, id: HirId, attrs: &[Attribute]) -> Option<&'hir [Attribute]> {
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fn lower_attrs(&mut self, id: HirId, attrs: &[Attribute]) -> &'hir [Attribute] {
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if attrs.is_empty() {
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None
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&[]
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} else {
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debug_assert_eq!(id.owner, self.current_hir_id_owner);
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let ret = self.arena.alloc_from_iter(attrs.iter().map(|a| self.lower_attr(a)));
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debug_assert!(!ret.is_empty());
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self.attrs.insert(id.local_id, ret);
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Some(ret)
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ret
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}
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}
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