feat(minifier): {} evals to f64::NaN

oxc-project · Jan 5, 2025 · cec63e2 · cec63e2
1 parent 4d8a08d
commit cec63e2
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diff --git a/crates/oxc_ecmascript/src/constant_evaluation/mod.rs b/crates/oxc_ecmascript/src/constant_evaluation/mod.rs
@@ -153,6 +153,7 @@ pub trait ConstantEvaluation<'a> {
             Expression::SequenceExpression(s) => {
                 s.expressions.last().and_then(|e| self.eval_to_number(e))
             }
+            Expression::ObjectExpression(e) if e.properties.is_empty() => Some(f64::NAN),
             expr => {
                 use crate::ToNumber;
                 expr.to_number()

diff --git a/crates/oxc_minifier/src/ast_passes/peephole_fold_constants.rs b/crates/oxc_minifier/src/ast_passes/peephole_fold_constants.rs
@@ -1450,6 +1450,7 @@ mod test {
         test("~true", "-2");
         test("~'1'", "-2");
         test("~'-1'", "0");
+        test("~{}", "-1");
     }
 
     #[test]