| use crate::error::Error as StdError; |
| use crate::ffi::{OsStr, OsString}; |
| use crate::fmt; |
| use crate::io; |
| use crate::path::{self, PathBuf}; |
| use crate::str; |
| use crate::sys::{unsupported, Void}; |
| |
| 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>(&'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 wasm yet".fmt(f) |
| } |
| } |
| |
| impl StdError for JoinPathsError { |
| #[allow(deprecated)] |
| fn description(&self) -> &str { |
| "not supported on wasm yet" |
| } |
| } |
| |
| pub fn current_exe() -> io::Result<PathBuf> { |
| unsupported() |
| } |
| |
| pub struct Env(Void); |
| |
| impl Iterator for Env { |
| type Item = (OsString, OsString); |
| fn next(&mut self) -> Option<(OsString, OsString)> { |
| match self.0 {} |
| } |
| } |
| |
| pub fn env() -> Env { |
| panic!("not supported on web assembly") |
| } |
| |
| pub fn getenv(_: &OsStr) -> io::Result<Option<OsString>> { |
| Ok(None) |
| } |
| |
| pub fn setenv(_: &OsStr, _: &OsStr) -> io::Result<()> { |
| Err(io::Error::new(io::ErrorKind::Other, "cannot set env vars on wasm32-unknown-unknown")) |
| } |
| |
| pub fn unsetenv(_: &OsStr) -> io::Result<()> { |
| Err(io::Error::new(io::ErrorKind::Other, "cannot unset env vars on wasm32-unknown-unknown")) |
| } |
| |
| pub fn temp_dir() -> PathBuf { |
| panic!("no filesystem on wasm") |
| } |
| |
| pub fn home_dir() -> Option<PathBuf> { |
| None |
| } |
| |
| pub fn exit(_code: i32) -> ! { |
| unsafe { |
| crate::arch::wasm32::unreachable(); |
| } |
| } |
| |
| pub fn getpid() -> u32 { |
| panic!("no pids on wasm") |
| } |