{"ast_node_type":"other","tokens":[{"end":74,"kind":"keyword","start":0,"text":"///"}]}
    /// Produces the same value as [`Self::trunc`] (and defaults to that),
    fn trunc(&mut self, val: Self::Value, dest_ty: Self::Type) -> Self::Value;
    /// but is UB unless the *zero*-extending the result can reproduce `val`.