diff options
Diffstat (limited to 'lib/compress.js')
| -rw-r--r-- | lib/compress.js | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/lib/compress.js b/lib/compress.js index 33943ff0..a28c7a6c 100644 --- a/lib/compress.js +++ b/lib/compress.js @@ -6433,15 +6433,17 @@ merge(Compressor.prototype, { OPT(AST_Assign, function(self, compressor) { if (compressor.option("dead_code")) { if (self.left instanceof AST_PropAccess) { - var exp = self.left.expression; - if (exp instanceof AST_Lambda - || !compressor.has_directive("use strict") - && exp instanceof AST_Constant - && !exp.may_throw_on_access(compressor)) { - return self.left instanceof AST_Dot ? self.right : make_sequence(self, [ - self.left.property, - self.right - ]).optimize(compressor); + if (self.operator == "=") { + var exp = self.left.expression; + if (exp instanceof AST_Lambda + || !compressor.has_directive("use strict") + && exp instanceof AST_Constant + && !exp.may_throw_on_access(compressor)) { + return self.left instanceof AST_Dot ? self.right : make_sequence(self, [ + self.left.property, + self.right + ]).optimize(compressor); + } } } else if (self.left instanceof AST_SymbolRef) { var def = self.left.definition(); |