Merge empty strings.

2021-09-26 21:18:52 +08:00
parent 65a1c24d7b
commit 3557db88e8
5 changed files with 63 additions and 32 deletions
--- a/src/optimize.rs
+++ b/src/optimize.rs
@@ -822,7 +822,7 @@ fn optimize_expr(expr: &mut Expr, state: &mut OptimizerState, chaining: bool) {
        // ``
        Expr::InterpolatedString(x, pos) if x.is_empty() => {
            state.set_dirty();
-            *expr = Expr::StringConstant(state.engine.empty_string.clone(), *pos);
+            *expr = Expr::StringConstant(state.engine.empty_string().clone(), *pos);
        }
        // `...`
        Expr::InterpolatedString(x, _) if x.len() == 1 && matches!(x[0], Expr::StringConstant(_, _)) => {