fix corner case in hoist_props (#3872)

fixes #3871
2020-05-10 15:23:09 +01:00
parent f9806b43c3
commit 63adfb1590
3 changed files with 39 additions and 2 deletions
--- a/lib/compress.js
+++ b/lib/compress.js
@@ -4931,7 +4931,11 @@ merge(Compressor.prototype, {
            if (def.single_use) return;
            if (top_retain(def)) return;
            if (sym.fixed_value() !== right) return;
-            return right instanceof AST_Object && right.properties.length > 0;
+            return right instanceof AST_Object
+                && right.properties.length > 0
+                && all(right.properties, function(prop) {
+                    return prop instanceof AST_ObjectKeyVal;
+                });
        }
    });