| // Copyright 2018 The Rust Project Developers. See the COPYRIGHT |
| // file at the top-level directory of this distribution and at |
| // http://rust-lang.org/COPYRIGHT. |
| // |
| // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or |
| // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license |
| // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your |
| // option. This file may not be copied, modified, or distributed |
| // except according to those terms. |
| |
| use error::Error as StdError; |
| use ffi::{OsStr, OsString}; |
| use fmt; |
| use io; |
| use iter; |
| use path::{self, PathBuf}; |
| use sys::{unsupported, Void}; |
| |
| pub fn getcwd() -> io::Result<PathBuf> { |
| unsupported() |
| } |
| |
| pub fn chdir(_: &path::Path) -> io::Result<()> { |
| unsupported() |
| } |
| |
| pub type Env = iter::Empty<(OsString, OsString)>; |
| |
| pub fn env() -> Env { |
| iter::empty() |
| } |
| |
| pub fn getenv(_: &OsStr) -> io::Result<Option<OsString>> { |
| Ok(None) |
| } |
| |
| pub fn setenv(_: &OsStr, _: &OsStr) -> io::Result<()> { |
| unsupported() |
| } |
| |
| pub fn unsetenv(_: &OsStr) -> io::Result<()> { |
| unsupported() |
| } |
| |
| pub struct SplitPaths<'a>(&'a Void); |
| |
| pub fn split_paths(_unparsed: &OsStr) -> SplitPaths { |
| panic!("unsupported") |
| } |
| |
| impl<'a> Iterator for SplitPaths<'a> { |
| type Item = PathBuf; |
| fn next(&mut self) -> Option<PathBuf> { |
| match *self.0 {} |
| } |
| } |
| |
| #[derive(Debug)] |
| pub struct JoinPathsError; |
| |
| pub fn join_paths<I, T>(_paths: I) -> Result<OsString, JoinPathsError> |
| where |
| I: Iterator<Item = T>, |
| T: AsRef<OsStr>, |
| { |
| Err(JoinPathsError) |
| } |
| |
| impl fmt::Display for JoinPathsError { |
| fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { |
| "not supported on CloudABI yet".fmt(f) |
| } |
| } |
| |
| impl StdError for JoinPathsError { |
| fn description(&self) -> &str { |
| "not supported on CloudABI yet" |
| } |
| } |
| |
| pub fn home_dir() -> Option<PathBuf> { |
| None |
| } |
| |
| pub fn temp_dir() -> PathBuf { |
| PathBuf::from("/tmp") |
| } |
| |
| pub fn current_exe() -> io::Result<PathBuf> { |
| unsupported() |
| } |
| |
| pub fn getpid() -> u32 { |
| 1 |
| } |