diff options
Diffstat (limited to 'vendor/pest_meta/src/optimizer/concatenator.rs')
-rw-r--r-- | vendor/pest_meta/src/optimizer/concatenator.rs | 39 |
1 files changed, 19 insertions, 20 deletions
diff --git a/vendor/pest_meta/src/optimizer/concatenator.rs b/vendor/pest_meta/src/optimizer/concatenator.rs index e0aab7bc1..31d3aa531 100644 --- a/vendor/pest_meta/src/optimizer/concatenator.rs +++ b/vendor/pest_meta/src/optimizer/concatenator.rs @@ -7,28 +7,27 @@ // option. All files in the project carrying such notice may not be copied, // modified, or distributed except according to those terms. -use ast::*; +use crate::ast::*; pub fn concatenate(rule: Rule) -> Rule { - match rule { - Rule { name, ty, expr } => Rule { - name, - ty, - expr: expr.map_bottom_up(|expr| { - if ty == RuleType::Atomic { - // TODO: Use box syntax when it gets stabilized. - match expr { - Expr::Seq(lhs, rhs) => match (*lhs, *rhs) { - (Expr::Str(lhs), Expr::Str(rhs)) => Expr::Str(lhs + &rhs), - (Expr::Insens(lhs), Expr::Insens(rhs)) => Expr::Insens(lhs + &rhs), - (lhs, rhs) => Expr::Seq(Box::new(lhs), Box::new(rhs)), - }, - expr => expr, - } - } else { - expr + let Rule { name, ty, expr } = rule; + Rule { + name, + ty, + expr: expr.map_bottom_up(|expr| { + if ty == RuleType::Atomic { + // TODO: Use box syntax when it gets stabilized. + match expr { + Expr::Seq(lhs, rhs) => match (*lhs, *rhs) { + (Expr::Str(lhs), Expr::Str(rhs)) => Expr::Str(lhs + &rhs), + (Expr::Insens(lhs), Expr::Insens(rhs)) => Expr::Insens(lhs + &rhs), + (lhs, rhs) => Expr::Seq(Box::new(lhs), Box::new(rhs)), + }, + expr => expr, } - }), - }, + } else { + expr + } + }), } } |