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Rollup merge of #80016 - jyn514:imports, r=GuillaumeGomez

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Use imports instead of rewriting the type signature of `RustcOptGroup::stable`

This was an adventure; see https://rust-lang.zulipchat.com/#narrow/stream/122651-general/topic/'higher.20ranked.20subtype.20error'

r? `@GuillaumeGomez`
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Guillaume Gomez 2020-12-15 16:43:26 +01:00 committed by GitHub
parent a2fcdc4752 4c1addfcb7
commit 6990419257
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1 changed files with 2 additions and 14 deletions
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16
src/librustdoc/lib.rs
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@ -117,21 +117,9 @@ fn get_args() -> Option<Vec<String>> {
.collect()
}
fn stable<F>(name: &'static str, f: F) -> RustcOptGroup
where
F: Fn(&mut getopts::Options) -> &mut getopts::Options + 'static,
{
RustcOptGroup::stable(name, f)
}
fn unstable<F>(name: &'static str, f: F) -> RustcOptGroup
where
F: Fn(&mut getopts::Options) -> &mut getopts::Options + 'static,
{
RustcOptGroup::unstable(name, f)
}
fn opts() -> Vec<RustcOptGroup> {
let stable: fn(_, fn(&mut getopts::Options) -> &mut _) -> _ = RustcOptGroup::stable;
let unstable: fn(_, fn(&mut getopts::Options) -> &mut _) -> _ = RustcOptGroup::unstable;
vec![
stable("h", |o| o.optflag("h", "help", "show this help message")),
stable("V", |o| o.optflag("V", "version", "print rustdoc's version")),