avoid generating ternary with spread (#2293)

fixes #2292
2017-08-30 12:57:07 -04:00
parent 067d52b6ba
commit 2779a29a86
2 changed files with 45 additions and 0 deletions
--- a/lib/compress.js
+++ b/lib/compress.js
@@ -4500,6 +4500,8 @@ merge(Compressor.prototype, {
            && alternative.TYPE === consequent.TYPE
            && consequent.args.length == 1
            && alternative.args.length == 1
+            && !(consequent.args[0] instanceof AST_Expansion)
+            && !(alternative.args[0] instanceof AST_Expansion)
            && consequent.expression.equivalent_to(alternative.expression)
            && !consequent.expression.has_side_effects(compressor)) {
            consequent.args[0] = make_node(AST_Conditional, self, {