syntax_data: {"ast_node_type":"other","tokens":[{"end":22,"kind":"keyword","start":0,"text":"#[rustc_pass_by_value]"}]}
source_snippet: #[rustc_pass_by_value]
context_before: #[derive(Clone, Copy, PartialEq, Eq, Hash, HashStable)]
context_after: pub struct Clause<'tcx>(