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Implement 'FromParam' for 'Cow<str>'.

This commit is contained in:
Sergio Benitez 2017-09-11 02:07:06 -07:00
parent a6c5a7e31c
commit 9e4e46fd12
1 changed files with 18 additions and 6 deletions
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24
lib/src/request/param.rs
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@ -1,7 +1,7 @@
use std::str::FromStr;
use std::net::{IpAddr, Ipv4Addr, Ipv6Addr, SocketAddrV4, SocketAddrV6, SocketAddr};
use std::path::PathBuf;
use std::fmt::Debug;
use std::borrow::Cow;
use http::uri::{URI, Segments, SegmentError};
use http::RawStr;
@ -214,22 +214,34 @@ impl<'a> FromParam<'a> for String {
}
}
impl<'a> FromParam<'a> for Cow<'a, str> {
type Error = &'a RawStr;
#[inline(always)]
fn from_param(param: &'a RawStr) -> Result<Cow<'a, str>, Self::Error> {
param.percent_decode().map_err(|_| param)
}
}
macro_rules! impl_with_fromstr {
($($T:ident),+) => ($(
($($T:ty),+) => ($(
impl<'a> FromParam<'a> for $T {
type Error = &'a RawStr;
#[inline(always)]
fn from_param(param: &'a RawStr) -> Result<Self, Self::Error> {
$T::from_str(param.as_str()).map_err(|_| param)
<$T as FromStr>::from_str(param.as_str()).map_err(|_| param)
}
}
)+)
}
impl_with_fromstr!(f32, f64, isize, i8, i16, i32, i64, usize, u8, u16, u32, u64,
bool, IpAddr, Ipv4Addr, Ipv6Addr, SocketAddrV4, SocketAddrV6,
SocketAddr);
use std::net::{IpAddr, Ipv4Addr, Ipv6Addr, SocketAddrV4, SocketAddrV6, SocketAddr};
impl_with_fromstr! {
i8, i16, i32, i64, isize, u8, u16, u32, u64, usize, f32, f64, bool,
IpAddr, Ipv4Addr, Ipv6Addr, SocketAddrV4, SocketAddrV6, SocketAddr
}
impl<'a, T: FromParam<'a>> FromParam<'a> for Result<T, T::Error> {
type Error = !;