diff options
Diffstat (limited to 'lib/compress.js')
| -rw-r--r-- | lib/compress.js | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/compress.js b/lib/compress.js index 8f786d73..8a08572f 100644 --- a/lib/compress.js +++ b/lib/compress.js @@ -2499,8 +2499,8 @@ merge(Compressor.prototype, { case "+": var ll = self.left.evaluate(compressor); var rr = self.right.evaluate(compressor); - if ((ll.length > 1 && ll[0] instanceof AST_String && ll[1]) || - (rr.length > 1 && rr[0] instanceof AST_String && rr[1])) { + if ((ll.length > 1 && ll[0] instanceof AST_String && ll[1] && !self.right.has_side_effects(compressor)) || + (rr.length > 1 && rr[0] instanceof AST_String && rr[1] && !self.left.has_side_effects(compressor))) { compressor.warn("+ in boolean context always true [{file}:{line},{col}]", self.start); return make_node(AST_True, self); } |