std/sys/env/
unsupported.rs

1use crate::ffi::{OsStr, OsString};
2use crate::{fmt, io};
3
4pub struct Env(!);
5
6impl fmt::Debug for Env {
7    fn fmt(&self, _: &mut fmt::Formatter<'_>) -> fmt::Result {
8        self.0
9    }
10}
11
12impl Iterator for Env {
13    type Item = (OsString, OsString);
14    fn next(&mut self) -> Option<(OsString, OsString)> {
15        self.0
16    }
17}
18
19pub fn env() -> Env {
20    panic!("not supported on this platform")
21}
22
23pub fn getenv(_: &OsStr) -> Option<OsString> {
24    None
25}
26
27pub unsafe fn setenv(_: &OsStr, _: &OsStr) -> io::Result<()> {
28    Err(io::const_error!(io::ErrorKind::Unsupported, "cannot set env vars on this platform"))
29}
30
31pub unsafe fn unsetenv(_: &OsStr) -> io::Result<()> {
32    Err(io::const_error!(io::ErrorKind::Unsupported, "cannot unset env vars on this platform"))
33}
std/sys/env/unsupported.rs

std/sys/env/
unsupported.rs
