fix missing preamble when shebang is absent (#1742)

2017-03-31 15:26:57 +08:00
parent a84564d1a8
commit 11e9bdc427
2 changed files with 11 additions and 3 deletions
--- a/lib/output.js
+++ b/lib/output.js
@@ -510,8 +510,8 @@ function OutputStream(options) {
                }));
            }

-            if (comments.length > 0 && output.pos() == 0) {
-                if (output.option("shebang") && comments[0].type == "comment5") {
+            if (output.pos() == 0) {
+                if (comments.length > 0 && output.option("shebang") && comments[0].type == "comment5") {
                    output.print("#!" + comments.shift().value + "\n");
                    output.indent();
                }