dherman/narcissus — comment on commit ca4c6f060a0c1dd9fe89434ee047f45b421f0e63
File: lib/interpreter.js line 1225
By syg:

Is there any reason why this try-finally is used over assigning to a variable, resetting this.node.parenthesized, then returning that variable? Not that toString performance is important, but try-finally seems overkill here.