rust/library/test/src/helpers/exit_code.rs
T-O-R-U-S 72a25d05bf Use implicit capture syntax in format_args
This updates the standard library's documentation to use the new syntax. The
documentation is worthwhile to update as it should be more idiomatic
(particularly for features like this, which are nice for users to get acquainted
with). The general codebase is likely more hassle than benefit to update: it'll
hurt git blame, and generally updates can be done by folks updating the code if
(and when) that makes things more readable with the new format.

A few places in the compiler and library code are updated (mostly just due to
already having been done when this commit was first authored).
2022-03-10 10:23:40 -05:00

20 lines
658 B
Rust

//! Helper module to detect subprocess exit code.
use std::process::ExitStatus;
#[cfg(not(unix))]
pub fn get_exit_code(status: ExitStatus) -> Result<i32, String> {
status.code().ok_or_else(|| "received no exit code from child process".into())
}
#[cfg(unix)]
pub fn get_exit_code(status: ExitStatus) -> Result<i32, String> {
use std::os::unix::process::ExitStatusExt;
match status.code() {
Some(code) => Ok(code),
None => match status.signal() {
Some(signal) => Err(format!("child process exited with signal {signal}")),
None => Err("child process exited with unknown signal".into()),
},
}
}