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Make macros formattable by rustfmt
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dtolnay committed Nov 20, 2024
1 parent 9b3e148 commit 9f83888
Showing 1 changed file with 29 additions and 20 deletions.
49 changes: 29 additions & 20 deletions src/lib.rs
Original file line number Diff line number Diff line change
Expand Up @@ -134,7 +134,7 @@ static DEC_DIGITS_LUT: [u8; 200] = *b"\
// Adaptation of the original implementation at
// https://github.com/rust-lang/rust/blob/b8214dc6c6fc20d0a660fb5700dca9ebf51ebe89/src/libcore/fmt/num.rs#L188-L266
macro_rules! impl_Integer {
($($t:ty[$max_len:expr])* as $large_unsigned:ty) => {$(
($t:ty[$max_len:expr] as $large_unsigned:ty) => {
impl Integer for $t {
const MAX_STR_LEN: usize = $max_len;
}
Expand Down Expand Up @@ -213,7 +213,7 @@ macro_rules! impl_Integer {
unsafe { str::from_utf8_unchecked(bytes) }
}
}
)*};
};
}

const I8_MAX_LEN: usize = 4;
Expand All @@ -225,29 +225,33 @@ const U32_MAX_LEN: usize = 10;
const I64_MAX_LEN: usize = 20;
const U64_MAX_LEN: usize = 20;

impl_Integer! {
i8[I8_MAX_LEN]
u8[U8_MAX_LEN]
i16[I16_MAX_LEN]
u16[U16_MAX_LEN]
i32[I32_MAX_LEN]
u32[U32_MAX_LEN]
as u32
}
impl_Integer!(i8[I8_MAX_LEN] as u32);
impl_Integer!(u8[U8_MAX_LEN] as u32);
impl_Integer!(i16[I16_MAX_LEN] as u32);
impl_Integer!(u16[U16_MAX_LEN] as u32);
impl_Integer!(i32[I32_MAX_LEN] as u32);
impl_Integer!(u32[U32_MAX_LEN] as u32);

impl_Integer!(i64[I64_MAX_LEN] u64[U64_MAX_LEN] as u64);
impl_Integer!(i64[I64_MAX_LEN] as u64);
impl_Integer!(u64[U64_MAX_LEN] as u64);

#[cfg(target_pointer_width = "16")]
impl_Integer!(isize[I16_MAX_LEN] usize[U16_MAX_LEN] as u16);
impl_Integer!(isize[I16_MAX_LEN] as u16);
#[cfg(target_pointer_width = "16")]
impl_Integer!(usize[U16_MAX_LEN] as u16);

#[cfg(target_pointer_width = "32")]
impl_Integer!(isize[I32_MAX_LEN] usize[U32_MAX_LEN] as u32);
impl_Integer!(isize[I32_MAX_LEN] as u32);
#[cfg(target_pointer_width = "32")]
impl_Integer!(usize[U32_MAX_LEN] as u32);

#[cfg(target_pointer_width = "64")]
impl_Integer!(isize[I64_MAX_LEN] usize[U64_MAX_LEN] as u64);
impl_Integer!(isize[I64_MAX_LEN] as u64);
#[cfg(target_pointer_width = "64")]
impl_Integer!(usize[U64_MAX_LEN] as u64);

macro_rules! impl_Integer128 {
($($t:ty[$max_len:expr])*) => {$(
($t:ty[$max_len:expr]) => {
impl Integer for $t {
const MAX_STR_LEN: usize = $max_len;
}
Expand All @@ -271,7 +275,9 @@ macro_rules! impl_Integer128 {

// Divide by 10^19 which is the highest power less than 2^64.
let (n, rem) = udiv128::udivmod_1e19(n);
let buf1 = unsafe { buf_ptr.add(curr - U64_MAX_LEN) as *mut [MaybeUninit<u8>; U64_MAX_LEN] };
let buf1 = unsafe {
buf_ptr.add(curr - U64_MAX_LEN) as *mut [MaybeUninit<u8>; U64_MAX_LEN]
};
curr -= rem.write(unsafe { &mut *buf1 }).len();

if n != 0 {
Expand All @@ -284,7 +290,9 @@ macro_rules! impl_Integer128 {

// Divide by 10^19 again.
let (n, rem) = udiv128::udivmod_1e19(n);
let buf2 = unsafe { buf_ptr.add(curr - U64_MAX_LEN) as *mut [MaybeUninit<u8>; U64_MAX_LEN] };
let buf2 = unsafe {
buf_ptr.add(curr - U64_MAX_LEN) as *mut [MaybeUninit<u8>; U64_MAX_LEN]
};
curr -= rem.write(unsafe { &mut *buf2 }).len();

if n != 0 {
Expand Down Expand Up @@ -316,10 +324,11 @@ macro_rules! impl_Integer128 {
unsafe { str::from_utf8_unchecked(bytes) }
}
}
)*};
};
}

const U128_MAX_LEN: usize = 39;
const I128_MAX_LEN: usize = 40;

impl_Integer128!(i128[I128_MAX_LEN] u128[U128_MAX_LEN]);
impl_Integer128!(i128[I128_MAX_LEN]);
impl_Integer128!(u128[U128_MAX_LEN]);

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