fix corner case in spread (#4364)

fixes #4363
2020-12-11 18:19:11 +00:00
parent 076739db07
commit 1020d37256
2 changed files with 26 additions and 1 deletions
--- a/lib/compress.js
+++ b/lib/compress.js
@@ -10051,7 +10051,9 @@ merge(Compressor.prototype, {
            found = true;
            var exp = prop.expression;
            if (compressor.option("spread") && exp instanceof AST_Object && all(exp.properties, function(prop) {
-                return !(prop instanceof AST_ObjectGetter || prop instanceof AST_Spread);
+                return !(prop instanceof AST_ObjectGetter
+                    || prop instanceof AST_ObjectSetter && prop.key instanceof AST_Node
+                    || prop instanceof AST_Spread);
            })) {
                changed = true;
                exp.properties.forEach(function(prop) {