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Manual Debug for Unix ExitCode ExitStatus ExitStatusError - #88305
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These structs have misleading names. An ExitStatus[Error] is actually a Unix wait status; an ExitCode is actually an exit status. The Display impls are fixed, but the Debug impls are still misleading, as reported in rust-lang#74832. Fix this by pretending that these internal structs are called `unix_exit_status` and `unix_wait_status` as applicable. (We can't actually rename the structs because of the way that the cross-platform machinery works: the names are cross-platform.) Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>
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dtolnay
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Oct 3, 2021
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@bors r+ rollup |
bors
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📌 Commit 848a38a has been approved by |
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Manual Debug for Unix ExitCode ExitStatus ExitStatusError These structs have misleading names. An ExitStatus[Error] is actually a Unix wait status; an ExitCode is actually an exit status. These misleading names appear in the `Debug` output. The `Display` impls on Unix have been improved, but the `Debug` impls are still misleading, as reported in rust-lang#74832. Fix this by pretending that these internal structs are called `unix_exit_status` and `unix_wait_status` as applicable. (We can't actually rename the structs because of the way that the cross-platform machinery works: the names are cross-platform.) After this change, this program ``` #![feature(exit_status_error)] fn main(){ let x = std::process::Command::new("false").status().unwrap(); dbg!(x.exit_ok()); eprintln!("x={:?}",x); } ``` produces this output ``` [src/main.rs:4] x.exit_ok() = Err( ExitStatusError( unix_wait_status( 256, ), ), ) x=ExitStatus(unix_wait_status(256)) ``` Closesrust-lang#74832
This was referenced Oct 4, 2021
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…arth Rollup of 14 pull requests Successful merges: - rust-lang#86434 (Add `Ipv6Addr::is_benchmarking`) - rust-lang#86828 (const fn for option copied, take & replace) - rust-lang#87679 (BTree: refine some comments) - rust-lang#87910 (Mark unsafe methods NonZero*::unchecked_(add|mul) as const.) - rust-lang#88286 (Remove unnecessary unsafe block in `process_unix`) - rust-lang#88305 (Manual Debug for Unix ExitCode ExitStatus ExitStatusError) - rust-lang#88353 (Partially stabilize `array_methods`) - rust-lang#88370 (Add missing `# Panics` section to `Vec` method) - rust-lang#88481 (Remove some feature gates) - rust-lang#89138 (Fix link in Ipv6Addr::to_ipv4 docs) - rust-lang#89401 (Add truncate note to Vec::resize) - rust-lang#89467 (Fix typos in rustdoc/lints) - rust-lang#89472 (Only register `WSACleanup` if `WSAStartup` is actually ever called) - rust-lang#89505 (Add regression test for spurious const error with NLL) Failed merges: r? `@ghost` `@rustbot` modify labels: rollup
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These structs have misleading names. An ExitStatus[Error] is actually a Unix wait status; an ExitCode is actually an exit status. These misleading names appear in the
Debugoutput.The
Displayimpls on Unix have been improved, but theDebugimpls are still misleading, as reported in #74832.Fix this by pretending that these internal structs are called
unix_exit_statusandunix_wait_statusas applicable. (We can't actually rename the structs because of the way that the cross-platform machinery works: the names are cross-platform.)After this change, this program
produces this output
Closes#74832