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Add default and latest stable edition to --edition in rustc (attempt 2) #106542

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Merged
merged 2 commits into from
Jan 7, 2023
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Add default and latest stable edition to --edition in rustc (attempt 2) #106542

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5cda0a2
Add default and latest stable edition to --edition in rustc
sigaloid Jan 6, 2023
893938f
Update compiler/rustc_session/src/config.rs
sigaloid Jan 6, 2023
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10 changes: 8 additions & 2 deletions compiler/rustc_session/src/config.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -35,6 +35,7 @@ use std::hash::Hash;
use std::iter;
use std::path::{Path, PathBuf};
use std::str::{self, FromStr};
use std::sync::LazyLock;

pub mod sigpipe;

Expand Down Expand Up @@ -1322,7 +1323,12 @@ mod opt {
unstable(longer(a, b), move |opts| opts.optmulti(a, b, c, d))
}
}

static EDITION_STRING: LazyLock<String> = LazyLock::new(|| {
format!(
"Specify which edition of the compiler to use when compiling code. \
The default is {DEFAULT_EDITION} and the latest stable edition is {LATEST_STABLE_EDITION}."
)
});
/// Returns the "short" subset of the rustc command line options,
/// including metadata for each option, such as whether the option is
/// part of the stable long-term interface for rustc.
Expand Down Expand Up @@ -1355,7 +1361,7 @@ pub fn rustc_short_optgroups() -> Vec<RustcOptGroup> {
opt::opt_s(
"",
"edition",
"Specify which edition of the compiler to use when compiling code.",
&*EDITION_STRING,
EDITION_NAME_LIST,
),
opt::multi_s(
Expand Down