| use super::unsupported; |
| use crate::error::Error as StdError; |
| use crate::ffi::{OsStr, OsString}; |
| use crate::fmt; |
| use crate::io; |
| use crate::marker::PhantomData; |
| use crate::path::{self, PathBuf}; |
| |
| pub fn errno() -> i32 { |
| 0 |
| } |
| |
| pub fn error_string(_errno: i32) -> String { |
| "operation successful".to_string() |
| } |
| |
| pub fn getcwd() -> io::Result<PathBuf> { |
| unsupported() |
| } |
| |
| pub fn chdir(_: &path::Path) -> io::Result<()> { |
| unsupported() |
| } |
| |
| pub struct SplitPaths<'a>(!, PhantomData<&'a ()>); |
| |
| pub fn split_paths(_unparsed: &OsStr) -> SplitPaths<'_> { |
| panic!("unsupported") |
| } |
| |
| impl<'a> Iterator for SplitPaths<'a> { |
| type Item = PathBuf; |
| fn next(&mut self) -> Option<PathBuf> { |
| 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 this platform yet".fmt(f) |
| } |
| } |
| |
| impl StdError for JoinPathsError { |
| #[allow(deprecated)] |
| fn description(&self) -> &str { |
| "not supported on this platform yet" |
| } |
| } |
| |
| pub fn current_exe() -> io::Result<PathBuf> { |
| unsupported() |
| } |
| |
| pub struct Env(!); |
| |
| impl Iterator for Env { |
| type Item = (OsString, OsString); |
| fn next(&mut self) -> Option<(OsString, OsString)> { |
| self.0 |
| } |
| } |
| |
| pub fn env() -> Env { |
| panic!("not supported on this platform") |
| } |
| |
| pub fn getenv(_: &OsStr) -> Option<OsString> { |
| None |
| } |
| |
| pub fn setenv(_: &OsStr, _: &OsStr) -> io::Result<()> { |
| Err(io::const_io_error!(io::ErrorKind::Unsupported, "cannot set env vars on this platform")) |
| } |
| |
| pub fn unsetenv(_: &OsStr) -> io::Result<()> { |
| Err(io::const_io_error!(io::ErrorKind::Unsupported, "cannot unset env vars on this platform")) |
| } |
| |
| pub fn temp_dir() -> PathBuf { |
| panic!("no filesystem on this platform") |
| } |
| |
| pub fn home_dir() -> Option<PathBuf> { |
| None |
| } |
| |
| pub fn exit(_code: i32) -> ! { |
| crate::intrinsics::abort() |
| } |
| |
| pub fn getpid() -> u32 { |
| panic!("no pids on this platform") |
| } |