Struct Pattern

#[non_exhaustive]
pub struct Pattern {
    pub value: u8,
    pub mask: u8,
}

BytePattern Given a target byte, the pattern will set bits to corresponding bits from value according to mask.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

value: u8

mask: u8

Implementations

impl Pattern

pub fn new(value: u8) -> Self

Creates a new BytePattern with provided value.

mask: 0xFF

let byte_pattern = Pattern::new(0xFF).with_mask(0xF0); // replace first 4 bits with 0xF

pub fn with_mask(self, mask: u8) -> Self

Trait Implementations

impl BytePattern for Pattern

fn eval(&self, value: u8) -> u8

Returns the value with current pattern applied.

use bswp::BytePattern;
use bswp::pattern::Pattern;
let byte_pattern = Pattern::new(0xFF).with_mask(0xF0);
assert_eq!(byte_pattern.eval(0x00), 0xF0);
let byte_pattern = Pattern::new(0b10101111).with_mask(0b10011010);
assert_eq!(byte_pattern.eval(0b00000000), 0b10001010);