syntax_data: {"ast_node_type":"other","tokens":[{"end":82,"kind":"keyword","start":0,"text":"#[cfg_attr(feature"}]}
source_snippet: #[cfg_attr(feature = "nightly", derive(Encodable_NoContext, Decodable_NoContext))]
context_before: #[derive(Copy, Clone, Eq, PartialEq, PartialOrd, Ord, Hash)]
context_after: pub enum InferConst {