diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/compress.js | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/lib/compress.js b/lib/compress.js index 13ae7c70..108a4e9e 100644 --- a/lib/compress.js +++ b/lib/compress.js @@ -1907,7 +1907,11 @@ merge(Compressor.prototype, { // if right is a constant, whatever side effects the // left side might have could not influence the // result. hence, force switch. - reverse(null, true); + + if (!(self.left instanceof AST_Binary + && PRECEDENCE[self.left.operator] >= PRECEDENCE[self.operator])) { + reverse(null, true); + } } if (/^[!=]==?$/.test(self.operator)) { if (self.left instanceof AST_SymbolRef && self.right instanceof AST_Conditional) { |