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Optional trailing comma for match arms.

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chriseth
2023-04-24 14:47:12 +02:00
parent 7c77081f0b
commit 56f002ae2c
1 changed files with 6 additions and 1 deletions
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7
parser/src/powdr.lalrpop
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@@ -357,7 +357,12 @@ PublicReference: String = {
}
MatchExpression: Box<Expression> = {
"match" <BoxedExpression> "{" <(<MatchArm> ",")*> "}" => Box::new(Expression::MatchExpression(<>))
"match" <BoxedExpression> "{" <MatchArms> "}" => Box::new(Expression::MatchExpression(<>))
}
MatchArms: Vec<(Option<Expression>, Expression)> = {
=> vec![],
<mut list:( <MatchArm> "," )*> <end:MatchArm> ","? => { list.push(end); list }
}
MatchArm: (Option<Expression>, Expression) = {