Struct StdSys 

pub struct StdSys;

Sys over the standard library.

Trait Implementations

impl Sys for StdSys

fn write(&self, stream: Stream, s: &str) -> Result<()>

Write s to stream and flush it.

fn real_path(&self, path: &Path) -> Option<PathBuf>

The canonical form of path, with symlinks resolved, or None if there is nothing there. A resolved module’s canonical name is its real path.

fn read_source(&self, path: &Path) -> Option<String>

The text of the file at path, or None if it is not a readable UTF-8 file.

fn var(&self, name: &str) -> Option<String>

The environment variable name, if it is set and UTF-8.

fn vars(&self) -> Vec<(String, String)>

The whole environment. Entries whose name or value is not UTF-8 are dropped: Elly strings are UTF-8, and a map that silently lost a key is better than a startup that refuses to run.

fn exit(&self, code: i32) -> !

End the process with code, immediately.