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Move out impl Integer to a common macro

This commit is contained in:
Mike Hommey 2018-03-17 10:02:50 +09:00
parent 13d1f096ea
commit ccdcae586f
1 changed files with 9 additions and 10 deletions
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19
src/lib.rs
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@ -41,8 +41,8 @@ const MAX_LEN: usize = 40; // i128::MIN (including minus sign)
// Adaptation of the original implementation at // Adaptation of the original implementation at
// https://github.com/rust-lang/rust/blob/b8214dc6c6fc20d0a660fb5700dca9ebf51ebe89/src/libcore/fmt/num.rs#L188-L266 // https://github.com/rust-lang/rust/blob/b8214dc6c6fc20d0a660fb5700dca9ebf51ebe89/src/libcore/fmt/num.rs#L188-L266
macro_rules! impl_Integer { macro_rules! impl_IntegerCommon {
($($t:ident),* as $conv_fn:ident) => {$( ($t:ident) => {
impl Integer for $t { impl Integer for $t {
fn write<W: io::Write>(self, mut wr: W) -> io::Result<usize> { fn write<W: io::Write>(self, mut wr: W) -> io::Result<usize> {
let mut buf = unsafe { mem::uninitialized() }; let mut buf = unsafe { mem::uninitialized() };
@ -51,6 +51,12 @@ macro_rules! impl_Integer {
Ok(bytes.len()) Ok(bytes.len())
} }
} }
};
}
macro_rules! impl_Integer {
($($t:ident),* as $conv_fn:ident) => {$(
impl_IntegerCommon!($t);
impl IntegerPrivate for $t { impl IntegerPrivate for $t {
#[allow(unused_comparisons)] #[allow(unused_comparisons)]
@ -128,14 +134,7 @@ impl_Integer!(isize, usize as u64);
#[cfg(all(feature = "i128"))] #[cfg(all(feature = "i128"))]
macro_rules! impl_Integer128 { macro_rules! impl_Integer128 {
($($t:ident),*) => {$( ($($t:ident),*) => {$(
impl Integer for $t { impl_IntegerCommon!($t);
fn write<W: io::Write>(self, mut wr: W) -> io::Result<usize> {
let mut buf = unsafe { mem::uninitialized() };
let bytes = self.write_to(&mut buf);
try!(wr.write_all(bytes));
Ok(bytes.len())
}
}
impl IntegerPrivate for $t { impl IntegerPrivate for $t {
#[allow(unused_comparisons)] #[allow(unused_comparisons)]