4ef16741e3
In regards to: https://github.com/rust-lang/rust/issues/19253#issuecomment-64836729 This commit: * Changes the #deriving code so that it generates code that utilizes fewer reexports (in particur Option::* and Result::*), which is necessary to remove those reexports in the future * Changes other areas of the codebase so that fewer reexports are utilized
43 lines
1.2 KiB
Rust
43 lines
1.2 KiB
Rust
// Copyright 2013 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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//! Networking I/O
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use io::{IoError, IoResult, InvalidInput};
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use option::Option::None;
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use result::Result::{Ok, Err};
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use self::ip::{SocketAddr, ToSocketAddr};
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pub use self::addrinfo::get_host_addresses;
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pub mod addrinfo;
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pub mod tcp;
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pub mod udp;
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pub mod ip;
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pub mod pipe;
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fn with_addresses<A: ToSocketAddr, T>(addr: A, action: |SocketAddr| -> IoResult<T>)
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-> IoResult<T> {
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const DEFAULT_ERROR: IoError = IoError {
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kind: InvalidInput,
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desc: "no addresses found for hostname",
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detail: None
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};
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let addresses = try!(addr.to_socket_addr_all());
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let mut err = DEFAULT_ERROR;
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for addr in addresses.into_iter() {
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match action(addr) {
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Ok(r) => return Ok(r),
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Err(e) => err = e
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}
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}
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Err(err)
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}
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