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use crate::error::Error as StdError;
use crate::ffi::{OsString, OsStr};
use crate::fmt;
use crate::io;
use crate::path::{self, PathBuf};
use crate::str;
use crate::sys::{unsupported, Void, ExitSysCall, GetEnvSysCall, SetEnvSysCall};
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 {
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(k: &OsStr) -> io::Result<Option<OsString>> {
Ok(GetEnvSysCall::perform(k))
}
pub fn setenv(k: &OsStr, v: &OsStr) -> io::Result<()> {
Ok(SetEnvSysCall::perform(k, Some(v)))
}
pub fn unsetenv(k: &OsStr) -> io::Result<()> {
Ok(SetEnvSysCall::perform(k, None))
}
pub fn temp_dir() -> PathBuf {
panic!("no filesystem on wasm")
}
pub fn home_dir() -> Option<PathBuf> {
None
}
pub fn exit(_code: i32) -> ! {
ExitSysCall::perform(_code as isize as usize)
}
pub fn getpid() -> u32 {
panic!("no pids on wasm")
}
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