fix corner case in inline (#5141)

fixes #5140
2021-10-01 23:54:42 +01:00
parent 940887f20f
commit 87b99162fb
2 changed files with 32 additions and 1 deletions
--- a/lib/compress.js
+++ b/lib/compress.js
@@ -9582,7 +9582,12 @@ merge(Compressor.prototype, {
                        });
                        return node;
                    } else if (!node.has_side_effects(compressor)) {
-                        self.drop_side_effect_free = return_null;
+                        self.drop_side_effect_free = function(compressor, first_in_statement) {
+                            var self = this;
+                            var exprs = self.args.slice();
+                            exprs.unshift(self.expression);
+                            return make_sequence(self, exprs).drop_side_effect_free(compressor, first_in_statement);
+                        };
                    }
                }
                var arg_used, insert, in_loop, scope;