fix corner case in ie8 (#3543)

fixes #3542
2019-10-28 23:54:27 +08:00
parent f38e31bd1e
commit 83fb8b4ca1
2 changed files with 23 additions and 1 deletions
--- a/lib/compress.js
+++ b/lib/compress.js
@@ -4238,7 +4238,7 @@ merge(Compressor.prototype, {
        def(AST_Binary, function(compressor, first_in_statement) {
            var right = this.right.drop_side_effect_free(compressor, first_in_statement);
            if (!right) return this.left.drop_side_effect_free(compressor, first_in_statement);
-            if (lazy_op[this.operator]) {
+            if (lazy_op[this.operator] && !(right instanceof AST_Function)) {
                var node = this;
                if (right !== node.right) {
                    node = this.clone();