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| author | Josh Stone <jistone@redhat.com> | 2019-07-11 17:51:24 -0700 |
|---|---|---|
| committer | Josh Stone <jistone@redhat.com> | 2019-08-12 15:03:44 -0700 |
| commit | ff60eca7a127dc8a63bbbf66ba3c7d2d8afea681 (patch) | |
| tree | 324c2395025e83aa97af123163d02ac95f9e709c /src/libcore | |
| parent | df3d68659835e3637107ed57c1dacd0edb68c0c6 (diff) | |
| download | rust-ff60eca7a127dc8a63bbbf66ba3c7d2d8afea681.tar.gz rust-ff60eca7a127dc8a63bbbf66ba3c7d2d8afea681.zip | |
Avoid closures in Peekable
Diffstat (limited to 'src/libcore')
| -rw-r--r-- | src/libcore/iter/adapters/mod.rs | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/src/libcore/iter/adapters/mod.rs b/src/libcore/iter/adapters/mod.rs index 6123d09e21c..c19e51b2658 100644 --- a/src/libcore/iter/adapters/mod.rs +++ b/src/libcore/iter/adapters/mod.rs @@ -1235,7 +1235,10 @@ impl<I: Iterator> Iterator for Peekable<I> { }; let (lo, hi) = self.iter.size_hint(); let lo = lo.saturating_add(peek_len); - let hi = hi.and_then(|x| x.checked_add(peek_len)); + let hi = match hi { + Some(x) => x.checked_add(peek_len), + None => None, + }; (lo, hi) } |