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Avoid unused return

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This commit is contained in:
Tamir Duberstein 2020-10-04 21:46:49 +00:00
parent 9fdaeb393a
commit a093957f43
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GPG Key ID: 32E33EC15E1FEF3C
1 changed files with 12 additions and 9 deletions
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21
library/std/src/net/parser.rs
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@ -75,9 +75,12 @@ impl<'a> Parser<'a> {
}) })
} }
/// Read the next character from the input if it matches the target #[must_use]
fn read_given_char(&mut self, target: char) -> Option<char> { /// Read the next character from the input if it matches the target.
self.read_atomically(|p| p.read_char().filter(|&c| c == target)) fn read_given_char(&mut self, target: char) -> Option<()> {
self.read_atomically(|p| {
p.read_char().and_then(|c| if c == target { Some(()) } else { None })
})
} }
/// Helper for reading separators in an indexed loop. Reads the separator /// Helper for reading separators in an indexed loop. Reads the separator
@ -90,7 +93,7 @@ impl<'a> Parser<'a> {
{ {
self.read_atomically(move |p| { self.read_atomically(move |p| {
if index > 0 { if index > 0 {
let _ = p.read_given_char(sep)?; p.read_given_char(sep)?;
} }
inner(p) inner(p)
}) })
@ -187,8 +190,8 @@ impl<'a> Parser<'a> {
// read `::` if previous code parsed less than 8 groups // read `::` if previous code parsed less than 8 groups
// `::` indicates one or more groups of 16 bits of zeros // `::` indicates one or more groups of 16 bits of zeros
let _ = p.read_given_char(':')?; p.read_given_char(':')?;
let _ = p.read_given_char(':')?; p.read_given_char(':')?;
// Read the back part of the address. The :: must contain at least one // Read the back part of the address. The :: must contain at least one
// set of zeroes, so our max length is 7. // set of zeroes, so our max length is 7.
@ -211,7 +214,7 @@ impl<'a> Parser<'a> {
/// Read a : followed by a port in base 10. /// Read a : followed by a port in base 10.
fn read_port(&mut self) -> Option<u16> { fn read_port(&mut self) -> Option<u16> {
self.read_atomically(|p| { self.read_atomically(|p| {
let _ = p.read_given_char(':')?; p.read_given_char(':')?;
p.read_number(10, None) p.read_number(10, None)
}) })
} }
@ -228,9 +231,9 @@ impl<'a> Parser<'a> {
/// Read an IPV6 address with a port /// Read an IPV6 address with a port
fn read_socket_addr_v6(&mut self) -> Option<SocketAddrV6> { fn read_socket_addr_v6(&mut self) -> Option<SocketAddrV6> {
self.read_atomically(|p| { self.read_atomically(|p| {
let _ = p.read_given_char('[')?; p.read_given_char('[')?;
let ip = p.read_ipv6_addr()?; let ip = p.read_ipv6_addr()?;
let _ = p.read_given_char(']')?; p.read_given_char(']')?;
let port = p.read_port()?; let port = p.read_port()?;
Some(SocketAddrV6::new(ip, port, 0, 0)) Some(SocketAddrV6::new(ip, port, 0, 0))