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use atof::*;
use atoi::*;
use error::Error;
use ftoa::*;
use itoa::*;
use lib;
pub trait FromBytes: Sized {
fn from_bytes(bytes: &[u8], base: u8) -> Self;
fn try_from_bytes(bytes: &[u8], base: u8) -> Result<Self, Error>;
}
macro_rules! from_bytes {
($t:ty, $bytes_cb:ident, $try_bytes_cb:ident) => (
impl FromBytes for $t {
#[inline(always)]
fn from_bytes(bytes: &[u8], base: u8) -> $t
{
$bytes_cb(base, bytes)
}
#[inline(always)]
fn try_from_bytes(bytes: &[u8], base: u8) -> Result<$t, Error>
{
$try_bytes_cb(base, bytes)
}
}
)
}
from_bytes!(u8, atou8_bytes, try_atou8_bytes);
from_bytes!(u16, atou16_bytes, try_atou16_bytes);
from_bytes!(u32, atou32_bytes, try_atou32_bytes);
from_bytes!(u64, atou64_bytes, try_atou64_bytes);
from_bytes!(usize, atousize_bytes, try_atousize_bytes);
from_bytes!(i8, atoi8_bytes, try_atoi8_bytes);
from_bytes!(i16, atoi16_bytes, try_atoi16_bytes);
from_bytes!(i32, atoi32_bytes, try_atoi32_bytes);
from_bytes!(i64, atoi64_bytes, try_atoi64_bytes);
from_bytes!(isize, atoisize_bytes, try_atoisize_bytes);
from_bytes!(f32, atof32_bytes, try_atof32_bytes);
from_bytes!(f64, atof64_bytes, try_atof64_bytes);
pub trait FromBytesLossy: FromBytes {
fn from_bytes_lossy(bytes: &[u8], base: u8) -> Self;
fn try_from_bytes_lossy(bytes: &[u8], base: u8) -> Result<Self, Error>;
}
macro_rules! from_bytes_lossy {
($t:ty, $bytes_cb:ident, $try_bytes_cb:ident) => (
impl FromBytesLossy for $t {
#[inline(always)]
fn from_bytes_lossy(bytes: &[u8], base: u8) -> $t
{
$bytes_cb(base, bytes)
}
#[inline(always)]
fn try_from_bytes_lossy(bytes: &[u8], base: u8) -> Result<$t, Error>
{
$try_bytes_cb(base, bytes)
}
}
)
}
from_bytes_lossy!(f32, atof32_lossy_bytes, try_atof32_lossy_bytes);
from_bytes_lossy!(f64, atof64_lossy_bytes, try_atof64_lossy_bytes);
pub trait ToBytes: Sized {
fn to_bytes(&self, base: u8) -> lib::Vec<u8>;
}
macro_rules! to_bytes {
($t:ty, $string_cb:ident) => (
impl ToBytes for $t {
#[inline(always)]
fn to_bytes(&self, base: u8) -> lib::Vec<u8>
{
$string_cb(*self, base)
}
}
)
}
to_bytes!(u8, u8toa_bytes);
to_bytes!(u16, u16toa_bytes);
to_bytes!(u32, u32toa_bytes);
to_bytes!(u64, u64toa_bytes);
to_bytes!(usize, usizetoa_bytes);
to_bytes!(i8, i8toa_bytes);
to_bytes!(i16, i16toa_bytes);
to_bytes!(i32, i32toa_bytes);
to_bytes!(i64, i64toa_bytes);
to_bytes!(isize, isizetoa_bytes);
to_bytes!(f32, f32toa_bytes);
to_bytes!(f64, f64toa_bytes);
#[cfg(test)]
mod tests {
use error::invalid_digit;
use super::*;
macro_rules! deserialize_int {
($($t:tt)*) => ($({
assert_eq!($t::from_bytes(b"0", 10), 0);
assert_eq!($t::try_from_bytes(b"0", 10), Ok(0));
assert_eq!($t::try_from_bytes(b"", 10), Err(invalid_digit(0)));
assert_eq!($t::try_from_bytes(b"1a", 10), Err(invalid_digit(1)));
})*)
}
macro_rules! deserialize_float {
($($t:tt)*) => ($({
assert_eq!($t::from_bytes(b"0.0", 10), 0.0);
assert_eq!($t::from_bytes_lossy(b"0.0", 10), 0.0);
assert_eq!($t::try_from_bytes(b"0.0", 10), Ok(0.0));
assert_eq!($t::try_from_bytes(b"0.0a", 10), Err(invalid_digit(3)));
assert_eq!($t::try_from_bytes_lossy(b"0.0", 10), Ok(0.0));
})*)
}
#[test]
fn from_bytes_test() {
deserialize_int! { u8 u16 u32 u64 usize i8 i16 i32 i64 isize }
deserialize_float! { f32 f64 }
}
macro_rules! serialize_int {
($($t:tt)*) => ($({
let x: $t = 0;
assert_eq!(x.to_bytes(10), b"0".to_vec());
})*)
}
macro_rules! serialize_float {
($($t:tt)*) => ($({
let x: $t = 0.0;
assert_eq!(x.to_bytes(10), b"0.0".to_vec());
})*)
}
#[test]
fn to_bytes_test() {
serialize_int! { u8 u16 u32 u64 usize i8 i16 i32 i64 isize }
serialize_float! { f32 f64 }
}
}