eval void 0 to undefined

Author: mischnic

turbopack/crates/turbopack-ecmascript/src/analyzer/graph.rs

@@ -418,6 +418,12 @@ impl EvalContext {
             Expr::Lit(e) => JsValue::Constant(e.clone().into()),
             Expr::Ident(i) => self.eval_ident(i),
 
+            Expr::Unary(UnaryExpr {
+                op: op!("void"),
+                arg: box Expr::Lit(Lit::Num(num)),
+                ..
+            }) if num.value == 0.0 => JsValue::Constant(ConstantValue::Undefined),
+
             Expr::Unary(UnaryExpr {
                 op: op!("!"), arg, ..
             }) => {