add parenthesis around sequence in yield (#2833)

fixes #2832
2018-01-22 14:57:23 +08:00
parent c7c7960b5f
commit bc01a85ba0
2 changed files with 41 additions and 0 deletions
--- a/lib/output.js
+++ b/lib/output.js
@@ -772,6 +772,7 @@ function OutputStream(options) {
            || p instanceof AST_DefaultAssign                 // x => (x = (0, function(){}))
            || p instanceof AST_Expansion                     // [...(a, b)]
            || p instanceof AST_ForOf && this === p.object    // for (e of (foo, bar)) {}
+            || p instanceof AST_Yield                         // yield (foo, bar)
        ;
    });