{"ast_node_type":"other","tokens":[{"end":117,"kind":"keyword","start":0,"text":"//"}]}
                // (https://doc.rust-lang.org/nightly/nightly-rustc/rustc_apfloat/trait.Float.html#method.to_i128_r).
                // `to_u128` is a saturating cast, which is what we need
                let v = f.to_u128(size.bits_usize()).value;