Jira (PUP-2088) Parser functions have arguments passed by reference rather than value

[Henrik Lindberg (JIRA)]

Title: Message Title

Henrik Lindberg commented on an issue   Re: Parser functions have arguments passed by reference rather than value Nah, we would like to do something about it if we can - one of the remedies suggested above. I don't think this has the highest priority though as I have a strong suspicion that we will end up with something that is not performing well. Reopening for consideration in 4.0 (changing to assessing). It requires experimentation and benchmarking to figure out what we can do before making a decision. Enforced immutability would be really nice to have throughout the runtime. Add Comment   Puppet / PUP-2088 Parser functions have arguments passed by reference rather than value Variables in puppet manifests are immutable, for the most part, and parser functions are functions: they shouldn't have side effects on their inputs. However, as the programing interface for functions passes by reference, all sorts of side effect shenanigans are possible. For example, this is the main guts of the 4.1.0 stdlib concat function: {code:... This message was sent by Atlassian JIRA (v6.1.4#6159-sha1:44eaede) -- You received this message because you are subscribed to the Google Groups "Puppet Bugs" group. To unsubscribe from this group and stop receiving emails from it, send an email to puppet-bugs+unsubscr...@googlegroups.com. To post to this group, send email to puppet-bugs@googlegroups.com. Visit this group at http://groups.google.com/group/puppet-bugs. For more options, visit https://groups.google.com/d/optout.