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Merge pull request #21 from achanda/untry

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Use the new ? operator
This commit is contained in:
Abhishek Chanda
2016-12-08 12:33:18 +00:00
committed by GitHub
parent c77e351fb0 d368d2bf02
commit 0aae20e91e
4 changed files with 14 additions and 14 deletions
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6
src/common.rs
View File

@ -17,7 +17,7 @@ pub fn cidr_parts<'a>(cidr: &'a str) -> Result<(&'a str, &'a str), IpNetworkErro
}
pub fn parse_prefix(prefix: &str, max: u8) -> Result<u8, IpNetworkError> {
let mask = try!(prefix.parse::<u8>().map_err(|_| IpNetworkError::InvalidPrefix));
let mask = prefix.parse::<u8>().map_err(|_| IpNetworkError::InvalidPrefix)?;
if mask > max {
Err(IpNetworkError::InvalidPrefix)
} else {
@ -32,9 +32,9 @@ pub fn parse_addr(addr: &str) -> Result<Ipv4Addr, IpNetworkError> {
if i >= 4 {
return Err(IpNetworkError::InvalidAddr(format!("More than 4 bytes: {}", addr)));
}
bytes[i] = try!(byte.map_err(|_| {
bytes[i] = byte.map_err(|_| {
IpNetworkError::InvalidAddr(format!("All bytes not 0-255: {}", addr))
}));
})?;
}
Ok(Ipv4Addr::new(bytes[0], bytes[1], bytes[2], bytes[3]))
}

10
src/ipv4.rs
View File

@ -175,9 +175,9 @@ impl Ipv4Network {
if i >= 4 {
return Err(IpNetworkError::InvalidAddr(format!("More than 4 bytes: {}", addr)));
}
bytes[i] = try!(byte.map_err(|_| {
bytes[i] = byte.map_err(|_| {
IpNetworkError::InvalidAddr(format!("All bytes not 0-255: {}", addr))
}));
})?;
}
Ok(Ipv4Addr::new(bytes[0], bytes[1], bytes[2], bytes[3]))
}
@ -206,9 +206,9 @@ impl fmt::Display for Ipv4Network {
impl FromStr for Ipv4Network {
type Err = IpNetworkError;
fn from_str(s: &str) -> Result<Ipv4Network, IpNetworkError> {
let (addr_str, prefix_str) = try!(cidr_parts(s));
let addr = try!(parse_addr(addr_str));
let prefix = try!(parse_prefix(prefix_str, IPV4_BITS));
let (addr_str, prefix_str) = cidr_parts(s)?;
let addr = parse_addr(addr_str)?;
let prefix = parse_prefix(prefix_str, IPV4_BITS)?;
Ipv4Network::new(addr, prefix)
}
}

8
src/ipv6.rs
View File

@ -87,10 +87,10 @@ impl Ipv6Network {
impl FromStr for Ipv6Network {
type Err = IpNetworkError;
fn from_str(s: &str) -> Result<Ipv6Network, IpNetworkError> {
let (addr_str, prefix_str) = try!(cidr_parts(s));
let addr = try!(Ipv6Addr::from_str(addr_str)
.map_err(|_| IpNetworkError::InvalidAddr(format!("{}", addr_str))));
let prefix = try!(parse_prefix(prefix_str, IPV6_BITS));
let (addr_str, prefix_str) = cidr_parts(s)?;
let addr = Ipv6Addr::from_str(addr_str)
.map_err(|_| IpNetworkError::InvalidAddr(format!("{}", addr_str)))?;
let prefix = parse_prefix(prefix_str, IPV6_BITS)?;
Ipv6Network::new(addr, prefix)
}
}

4
src/lib.rs
View File

@ -24,8 +24,8 @@ pub enum IpNetwork {
impl IpNetwork {
pub fn new(ip: IpAddr, prefix: u8) -> Result<IpNetwork, IpNetworkError> {
match ip {
IpAddr::V4(a) => Ok(IpNetwork::V4(try!(Ipv4Network::new(a, prefix)))),
IpAddr::V6(a) => Ok(IpNetwork::V6(try!(Ipv6Network::new(a, prefix)))),
IpAddr::V4(a) => Ok(IpNetwork::V4(Ipv4Network::new(a, prefix)?)),
IpAddr::V6(a) => Ok(IpNetwork::V6(Ipv6Network::new(a, prefix)?)),
}
}