rune/ast/
utils.rs

1use crate::ast;
2
3/// Test if the given expression qualifieis as a block end or not, as with a
4/// body in a match expression.
5///
6/// This determines if a comma is necessary or not after the expression.
7pub(crate) fn is_block_end(expr: &ast::Expr, comma: Option<&T![,]>) -> bool {
8    match (expr, comma) {
9        (ast::Expr::Block(..), _) => false,
10        (ast::Expr::For(..), _) => false,
11        (ast::Expr::While(..), _) => false,
12        (ast::Expr::If(..), _) => false,
13        (ast::Expr::Match(..), _) => false,
14        (_, Some(..)) => false,
15        (_, None) => true,
16    }
17}