lexical_parse_integer/
parse.rs

1//! Shared trait and methods for parsing integers.
2
3#![doc(hidden)]
4
5// Select the correct back-end.
6#[cfg(not(feature = "compact"))]
7use crate::algorithm::{algorithm_complete, algorithm_partial};
8#[cfg(feature = "compact")]
9use crate::compact::{algorithm_complete, algorithm_partial};
10
11use lexical_util::num::{Integer, UnsignedInteger};
12use lexical_util::result::Result;
13
14/// Parse integer trait, implemented in terms of the optimized back-end.
15pub trait ParseInteger: Integer {
16    /// Forward complete parser parameters to the backend.
17    #[cfg_attr(not(feature = "compact"), inline(always))]
18    fn parse_complete<Unsigned: UnsignedInteger, const FORMAT: u128>(bytes: &[u8]) -> Result<Self> {
19        algorithm_complete::<_, Unsigned, { FORMAT }>(bytes)
20    }
21
22    /// Forward partial parser parameters to the backend.
23    #[cfg_attr(not(feature = "compact"), inline(always))]
24    fn parse_partial<Unsigned: UnsignedInteger, const FORMAT: u128>(
25        bytes: &[u8],
26    ) -> Result<(Self, usize)> {
27        algorithm_partial::<_, Unsigned, { FORMAT }>(bytes)
28    }
29}
30
31macro_rules! parse_integer_impl {
32    ($($t:ty)*) => ($(
33        impl ParseInteger for $t {}
34    )*)
35}
36
37parse_integer_impl! { u8 u16 u32 u64 u128 usize }
38parse_integer_impl! { i8 i16 i32 i64 i128 isize }
lexical_parse_integer/parse.rs

lexical_parse_integer/
parse.rs
