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 { 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 { self.0 } } #[derive(Debug)] pub struct JoinPathsError; pub fn join_paths(_paths: I) -> Result where I: Iterator, T: AsRef, { 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 { unsupported() } pub struct Env(!); impl Env { // FIXME(https://github.com/rust-lang/rust/issues/114583): Remove this when ::fmt matches ::fmt. pub fn str_debug(&self) -> impl fmt::Debug + '_ { let Self(inner) = self; match *inner {} } } impl fmt::Debug for Env { fn fmt(&self, _: &mut fmt::Formatter<'_>) -> fmt::Result { let Self(inner) = self; match *inner {} } } impl Iterator for Env { type Item = (OsString, OsString); fn next(&mut self) -> Option<(OsString, OsString)> { let Self(inner) = self; match *inner {} } } pub fn env() -> Env { panic!("not supported on this platform") } pub fn getenv(_: &OsStr) -> Option { 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 { None } pub fn exit(_code: i32) -> ! { crate::intrinsics::abort() } pub fn getpid() -> u32 { panic!("no pids on this platform") }