diff options
Diffstat (limited to 'src/librustc/middle/lang_items.rs')
| -rw-r--r-- | src/librustc/middle/lang_items.rs | 19 |
1 files changed, 7 insertions, 12 deletions
diff --git a/src/librustc/middle/lang_items.rs b/src/librustc/middle/lang_items.rs index e13a5672778..56c5928a132 100644 --- a/src/librustc/middle/lang_items.rs +++ b/src/librustc/middle/lang_items.rs @@ -147,18 +147,12 @@ struct LanguageItemCollector<'a> { impl<'a, 'v> Visitor<'v> for LanguageItemCollector<'a> { fn visit_item(&mut self, item: &ast::Item) { - match extract(&item.attrs) { - Some(value) => { - let item_index = self.item_refs.get(&value[]).map(|x| *x); - - match item_index { - Some(item_index) => { - self.collect_item(item_index, local_def(item.id), item.span) - } - None => {} - } + if let Some(value) = extract(&item.attrs) { + let item_index = self.item_refs.get(&value[..]).cloned(); + + if let Some(item_index) = item_index { + self.collect_item(item_index, local_def(item.id), item.span) } - None => {} } visit::walk_item(self, item); @@ -312,12 +306,13 @@ lets_do_this! { ExchangeHeapLangItem, "exchange_heap", exchange_heap; OwnedBoxLangItem, "owned_box", owned_box; + PhantomFnItem, "phantom_fn", phantom_fn; PhantomDataItem, "phantom_data", phantom_data; + // Deprecated: CovariantTypeItem, "covariant_type", covariant_type; ContravariantTypeItem, "contravariant_type", contravariant_type; InvariantTypeItem, "invariant_type", invariant_type; - CovariantLifetimeItem, "covariant_lifetime", covariant_lifetime; ContravariantLifetimeItem, "contravariant_lifetime", contravariant_lifetime; InvariantLifetimeItem, "invariant_lifetime", invariant_lifetime; |