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final formatting: 0.2.2 - todo: signed logic, assign ops, shifts, divrem, display

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EvilMuffinHa 2022-08-08 00:22:57 -04:00
parent f9eb2a1afa
commit ef013a5b16
1 changed files with 114 additions and 0 deletions
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114
src/pretty.rs
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@ -1,6 +1,8 @@
use crate::SmallInt;
use crate::SmallUint;
use crate::smallint::{SmallIntType, SmallUintType};
#[cfg(feature = "num-bigint")]
use num_bigint::{BigInt, BigUint};
@ -17,3 +19,115 @@ impl core::fmt::Debug for SmallUint {
write!(f, "{}", BigUint::from(self))
}
}
#[cfg(feature = "num-bigint")]
impl core::fmt::Display for SmallInt {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
write!(f, "{}", BigInt::from(self))
}
}
#[cfg(feature = "num-bigint")]
impl core::fmt::Display for SmallUint {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
write!(f, "{}", BigUint::from(self))
}
}
impl core::fmt::UpperHex for SmallUint {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
match self.0 {
SmallUintType::Inline(i) => write!(f, "0x{:X}", i),
SmallUintType::Heap((r, s)) => {
let slice = unsafe { core::slice::from_raw_parts(r, s) };
let mut iter = slice.iter().rev();
if let Some(i) = iter.next() {
write!(f, "0x{:X}", i)?;
}
for i in iter {
write!(f, "{:08X}", i)?;
}
Ok(())
}
}
}
}
impl core::fmt::LowerHex for SmallUint {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
match self.0 {
SmallUintType::Inline(i) => write!(f, "0x{:x}", i),
SmallUintType::Heap((r, s)) => {
let slice = unsafe { core::slice::from_raw_parts(r, s) };
let mut iter = slice.iter().rev();
if let Some(i) = iter.next() {
write!(f, "0x{:x}", i)?;
}
for i in iter {
write!(f, "{:08x}", i)?;
}
Ok(())
}
}
}
}
impl core::fmt::UpperHex for SmallInt {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
match self.0 {
SmallIntType::Inline(i) => match i {
x if x >= 0 => write!(f, "0x{:X}", i),
x if x < 0 => write!(f, "-0x{:X}", -i),
_ => panic!("This should not happen."),
},
SmallIntType::Heap((r, s)) => {
let sign = match s.signum() {
x if x >= 0 => "",
x if x < 0 => "-",
_ => panic!("This should not happen."),
};
let slice =
unsafe { core::slice::from_raw_parts(r, usize::try_from(s.abs()).unwrap()) };
let mut iter = slice.iter().rev();
if let Some(i) = iter.next() {
write!(f, "{}0x{:X}", sign, i)?;
}
for i in iter {
write!(f, "{:08X}", i)?;
}
Ok(())
}
}
}
}
impl core::fmt::LowerHex for SmallInt {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
match self.0 {
SmallIntType::Inline(i) => match i {
x if x >= 0 => write!(f, "0x{:x}", i),
x if x < 0 => write!(f, "-0x{:x}", -i),
_ => panic!("This should not happen."),
},
SmallIntType::Heap((r, s)) => {
let sign = match s.signum() {
x if x >= 0 => "",
x if x < 0 => "-",
_ => panic!("This should not happen."),
};
let slice =
unsafe { core::slice::from_raw_parts(r, usize::try_from(s.abs()).unwrap()) };
let mut iter = slice.iter().rev();
if let Some(i) = iter.next() {
write!(f, "{}0x{:x}", sign, i)?;
}
for i in iter {
write!(f, "{:08x}", i)?;
}
Ok(())
}
}
}
}