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use Iterator::sum() for summing instead of fold

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Constantin Berhard 2017-03-06 22:46:16 +01:00
parent 5f5fb4e502
commit 36d5aa016a
1 changed files with 2 additions and 2 deletions
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4
src/utils/mod.rs
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@ -51,7 +51,7 @@ pub fn prefix<'a, I>(iter: I, available_width: usize, delimiter: &str) -> Prefix
// `current_width` is the width of everything // `current_width` is the width of everything
// before the next token, including any space. // before the next token, including any space.
let mut current_width = 0; let mut current_width = 0;
let sum = iter.take_while(|token| { let sum: usize = iter.take_while(|token| {
let width = token.width(); let width = token.width();
if current_width + width > available_width { if current_width + width > available_width {
false false
@ -63,7 +63,7 @@ pub fn prefix<'a, I>(iter: I, available_width: usize, delimiter: &str) -> Prefix
} }
}) })
.map(|token| token.len() + delimiter_len) .map(|token| token.len() + delimiter_len)
.fold(0, |a, b| a + b); .sum();
// We counted delimiter once too many times, // We counted delimiter once too many times,
// but only if the iterator was non empty. // but only if the iterator was non empty.