Fix RHS concat (raised in #330)

When attempting to concat the left-side of the rhs, make sure the rhs is a string.
2013-10-26 18:44:52 +02:00
parent cfd5c6155c
commit e2daee9a65
1 changed files with 2 additions and 1 deletions
--- a/lib/compress.js
+++ b/lib/compress.js
@@ -2067,7 +2067,8 @@ merge(Compressor.prototype, {
                    && self.left.right instanceof AST_Constant
                    && self.right instanceof AST_Binary
                    && self.right.operator == "+"
-                    && self.right.left instanceof AST_Constant) {
+                    && self.right.left instanceof AST_Constant
+                    && self.right.is_string(compressor)) {
                    self = make_node(AST_Binary, self, {
                        operator: "+",
                        left: make_node(AST_Binary, self.left, {