oxide_core/heap/
bigint.rs

1//! BigInt records. Every BigInt is a heap record: an `i64` does not fit the
2//! 32-bit payload. This module defines the record and its tracing; the
3//! arithmetic is `vm::bigint`'s.
4
5use super::arena::Record;
6
7#[derive(Clone, Debug, PartialEq, Eq)]
8pub struct BigIntRecord {
9    pub negative: bool,
10    /// Magnitude, least significant limb first, no trailing zero limbs.
11    pub limbs: Box<[u64]>,
12}
13
14impl Record for BigIntRecord {
15    fn vacant() -> Self {
16        BigIntRecord {
17            negative: false,
18            limbs: Box::new([]),
19        }
20    }
21
22    fn extra_bytes(&self) -> usize {
23        self.limbs.len() * 8
24    }
25}

oxide_core/heap/bigint.rs

oxide_core/heap/
bigint.rs