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node.start may not be defined

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alice 2018-09-02 17:56:54 +08:00
parent ea999b0e92
commit f7851aaf0f
1 changed files with 1 additions and 0 deletions
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lib/output.js
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@ -482,6 +482,7 @@ function OutputStream(options) {
|| parent instanceof AST_Sequence && parent.expressions[0] === node || parent instanceof AST_Sequence && parent.expressions[0] === node
|| parent instanceof AST_Sub && parent.expression === node || parent instanceof AST_Sub && parent.expression === node
|| parent instanceof AST_UnaryPostfix) { || parent instanceof AST_UnaryPostfix) {
if (!node.start) return;
var text = node.start.comments_before; var text = node.start.comments_before;
if (text && text._dumped !== self) { if (text && text._dumped !== self) {
text._dumped = self; text._dumped = self;