syntax​::attr

Structs

Stability

Traits

AttrMetaMethodsAttributeMethods

Functions

containscontains_namefind_crateidfind_inline_attrfind_repr_attrfind_stabilityfind_stability_genericfirst_attr_value_str_by_nameis_usedlast_meta_item_value_str_by_namemark_usedmk_attr_idmk_attr_innermk_attr_outermk_list_itemmk_name_value_itemmk_name_value_item_strmk_sugared_doc_attrmk_word_itemrequire_unique_namessort_meta_itemstest_cfg

Function syntax::attr::test_cfg[src]

pub fn test_cfg<AM: AttrMetaMethods, It: Iterator<AM>>(cfg: &[Gc<MetaItem>], metas: It) -> bool

Tests if any cfg(...) meta items in metas match cfg. e.g.

test_cfg([foo="a", bar], [cfg(foo), cfg(bar)]) == true test_cfg([foo="a", bar], [cfg(not(bar))]) == false test_cfg([foo="a", bar], [cfg(bar, foo="a")]) == true test_cfg([foo="a", bar], [cfg(bar, foo="b")]) == false