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Fix codegen for when comments_before is undefined.

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Fix #333
This commit is contained in:
Mihai Bazon
2013-10-28 09:39:29 +02:00
parent b47f7b76b9
commit 0358e376f0
2 changed files with 5 additions and 5 deletions
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9
lib/output.js
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@@ -378,14 +378,15 @@ function OutputStream(options) {
var start = self.start;
if (start && !start._comments_dumped) {
start._comments_dumped = true;
var comments = start.comments_before;
var comments = start.comments_before || [];
// XXX: ugly fix for https://github.com/mishoo/UglifyJS2/issues/112
// if this node is `return` or `throw`, we cannot allow comments before
// the returned or thrown value.
if (self instanceof AST_Exit &&
self.value && self.value.start.comments_before.length > 0) {
comments = (comments || []).concat(self.value.start.comments_before);
if (self instanceof AST_Exit && self.value
&& self.value.start.comments_before
&& self.value.start.comments_before.length > 0) {
comments = comments.concat(self.value.start.comments_before);
self.value.start.comments_before = [];
}