use std::fmt;
#[allow(clippy::enum_variant_names)]
#[derive(Copy)]
pub enum FormatWriter {
IntWriter(fn(u64) -> String),
FloatWriter(fn(f64) -> String),
MultibyteWriter(fn(&[u8]) -> String),
}
impl Clone for FormatWriter {
#[inline]
fn clone(&self) -> Self {
*self
}
}
impl PartialEq for FormatWriter {
fn eq(&self, other: &Self) -> bool {
use crate::formatteriteminfo::FormatWriter::*;
match (self, other) {
(&IntWriter(ref a), &IntWriter(ref b)) => a == b,
(&FloatWriter(ref a), &FloatWriter(ref b)) => a == b,
(&MultibyteWriter(ref a), &MultibyteWriter(ref b)) => *a as usize == *b as usize,
_ => false,
}
}
}
impl Eq for FormatWriter {}
impl fmt::Debug for FormatWriter {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match *self {
Self::IntWriter(ref p) => {
f.write_str("IntWriter:")?;
fmt::Pointer::fmt(p, f)
}
Self::FloatWriter(ref p) => {
f.write_str("FloatWriter:")?;
fmt::Pointer::fmt(p, f)
}
Self::MultibyteWriter(ref p) => {
f.write_str("MultibyteWriter:")?;
fmt::Pointer::fmt(&(*p as *const ()), f)
}
}
}
}
#[derive(Copy, Clone, PartialEq, Eq, Debug)]
pub struct FormatterItemInfo {
pub byte_size: usize,
pub print_width: usize, pub formatter: FormatWriter,
}