diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/compress.js | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/lib/compress.js b/lib/compress.js index 55584fc5..ddba6245 100644 --- a/lib/compress.js +++ b/lib/compress.js @@ -4576,7 +4576,12 @@ merge(Compressor.prototype, { if (compressor.option("inline") && stat instanceof AST_Return) { var value = stat.value; if (!value || value.is_constant_expression()) { - var args = self.args.concat(value || make_node(AST_Undefined, self)); + if (value) { + value = value.clone(true); + } else { + value = make_node(AST_Undefined, self); + } + var args = self.args.concat(value); return make_sequence(self, args).optimize(compressor); } } |