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Merge #7099

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7099: Remove unused clones in mbe r=edwin0cheng a=edwin0cheng

bors r+

Co-authored-by: Edwin Cheng <edwin0cheng@gmail.com>
This commit is contained in:
bors[bot] 2020-12-30 19:10:56 +00:00 committed by GitHub
commit bed7be9ed9
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1 changed files with 4 additions and 8 deletions
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12
crates/mbe/src/lib.rs
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@ -217,18 +217,14 @@ pub fn map_id_up(&self, id: tt::TokenId) -> (tt::TokenId, Origin) {
impl Rule {
fn parse(src: &mut TtIter) -> Result<Rule, ParseError> {
let mut lhs = src
let lhs = src
.expect_subtree()
.map_err(|()| ParseError::Expected("expected subtree".to_string()))?
.clone();
lhs.delimiter = None;
.map_err(|()| ParseError::Expected("expected subtree".to_string()))?;
src.expect_char('=').map_err(|()| ParseError::Expected("expected `=`".to_string()))?;
src.expect_char('>').map_err(|()| ParseError::Expected("expected `>`".to_string()))?;
let mut rhs = src
let rhs = src
.expect_subtree()
.map_err(|()| ParseError::Expected("expected subtree".to_string()))?
.clone();
rhs.delimiter = None;
.map_err(|()| ParseError::Expected("expected subtree".to_string()))?;
let lhs = MetaTemplate { tokens: parse_pattern(&lhs), delimiter: None };
let rhs = MetaTemplate { tokens: parse_template(&rhs), delimiter: None };