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Auto merge of #4508 - rust-lang:reduced-symbolism, r=phansch

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Simplify `utils::match_def_path`, removing a FIXME

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This removes the `Vec<Symbol>` allocation. We still need to call `cx.get_def_path`, but this should already have been interned, and I don't see how we can keep ergonomics of that function without allocating a `Vec`.

r? @phansch
This commit is contained in:
bors 2019-09-06 15:10:06 +00:00
commit f30bf69ec7
1 changed files with 2 additions and 3 deletions
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5
clippy_lints/src/utils/mod.rs
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@ -1125,7 +1125,6 @@ mod test {
}
pub fn match_def_path<'a, 'tcx>(cx: &LateContext<'a, 'tcx>, did: DefId, syms: &[&str]) -> bool {
// HACK: find a way to use symbols from clippy or just go fully to diagnostic items
let syms: Vec<_> = syms.iter().map(|sym| Symbol::intern(sym)).collect();
cx.match_def_path(did, &syms)
let path = cx.get_def_path(did);
path.len() == syms.len() && path.into_iter().zip(syms.iter()).all(|(a, &b)| a.as_str() == b)
}